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gtk2/gtk/gtkiconview.c
Tristan Van Berkom 73ea777c33 Fixed GtkTextView & GtkIconView to consult it's true previous size request 
Fixed issues in my previous patch for bug 626939 removing GtkRequisition
cache: these widgets monitor the previous requested size and decide whether
to queue a resize when the content changes based on it's prior request.
2010-09-09 17:19:18 +09:00

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/* gtkiconview.c
* Copyright (C) 2002, 2004 Anders Carlsson <andersca@gnu.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <atk/atk.h>
#include <gdk/gdkkeysyms.h>
#include "gtkiconview.h"
#include "gtkcelllayout.h"
#include "gtkcellrenderer.h"
#include "gtkcellrenderertext.h"
#include "gtkcellrendererpixbuf.h"
#include "gtkmarshalers.h"
#include "gtkbindings.h"
#include "gtkdnd.h"
#include "gtkmain.h"
#include "gtkintl.h"
#include "gtkaccessible.h"
#include "gtkwindow.h"
#include "gtkentry.h"
#include "gtkcombobox.h"
#include "gtktextbuffer.h"
#include "gtksizerequest.h"
#include "gtktreednd.h"
#include "gtkprivate.h"
/**
* SECTION:gtkiconview
* @title: GtkIconView
* @short_description: A widget which displays a list of icons in a grid
*
* #GtkIconView provides an alternative view on a list model.
* It displays the model as a grid of icons with labels. Like
* #GtkTreeView, it allows to select one or multiple items
* (depending on the selection mode, see gtk_icon_view_set_selection_mode()).
* In addition to selection with the arrow keys, #GtkIconView supports
* rubberband selection, which is controlled by dragging the pointer.
*/
#define SCROLL_EDGE_SIZE 15
typedef struct _GtkIconViewItem GtkIconViewItem;
struct _GtkIconViewItem
{
GtkTreeIter iter;
gint index;
gint row, col;
/* Bounding box */
gint x, y, width, height;
/* Individual cells.
* box[i] is the actual area occupied by cell i,
* before, after are used to calculate the cell
* area relative to the box.
* See gtk_icon_view_get_cell_area().
*/
gint n_cells;
GdkRectangle *box;
gint *before;
gint *after;
guint selected : 1;
guint selected_before_rubberbanding : 1;
};
typedef struct _GtkIconViewCellInfo GtkIconViewCellInfo;
struct _GtkIconViewCellInfo
{
GtkCellRenderer *cell;
guint expand : 1;
guint pack : 1;
guint editing : 1;
gint position;
GSList *attributes;
GtkCellLayoutDataFunc func;
gpointer func_data;
GDestroyNotify destroy;
};
typedef struct _GtkIconViewChild GtkIconViewChild;
struct _GtkIconViewChild
{
GtkWidget *widget;
GtkIconViewItem *item;
gint cell;
};
struct _GtkIconViewPrivate
{
gint width, height;
GtkSelectionMode selection_mode;
GdkWindow *bin_window;
GList *children;
GtkTreeModel *model;
GList *items;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
guint layout_idle_id;
gboolean doing_rubberband;
gint rubberband_x1, rubberband_y1;
gint rubberband_x2, rubberband_y2;
GdkDevice *rubberband_device;
guint scroll_timeout_id;
gint scroll_value_diff;
gint event_last_x, event_last_y;
GtkIconViewItem *anchor_item;
GtkIconViewItem *cursor_item;
GtkIconViewItem *edited_item;
GtkCellEditable *editable;
GtkIconViewItem *last_single_clicked;
GList *cell_list;
guint n_cells;
gint cursor_cell;
GtkOrientation item_orientation;
gint columns;
gint item_width;
gint spacing;
gint row_spacing;
gint column_spacing;
gint margin;
gint item_padding;
gint text_column;
gint markup_column;
gint pixbuf_column;
gint pixbuf_cell;
gint text_cell;
gint tooltip_column;
/* Drag-and-drop. */
GdkModifierType start_button_mask;
gint pressed_button;
gint press_start_x;
gint press_start_y;
GdkDragAction source_actions;
GdkDragAction dest_actions;
GtkTreeRowReference *dest_item;
GtkIconViewDropPosition dest_pos;
/* scroll to */
GtkTreeRowReference *scroll_to_path;
gfloat scroll_to_row_align;
gfloat scroll_to_col_align;
guint scroll_to_use_align : 1;
guint source_set : 1;
guint dest_set : 1;
guint reorderable : 1;
guint empty_view_drop :1;
guint ctrl_pressed : 1;
guint shift_pressed : 1;
guint draw_focus : 1;
};
/* Signals */
enum
{
ITEM_ACTIVATED,
SELECTION_CHANGED,
SELECT_ALL,
UNSELECT_ALL,
SELECT_CURSOR_ITEM,
TOGGLE_CURSOR_ITEM,
MOVE_CURSOR,
ACTIVATE_CURSOR_ITEM,
LAST_SIGNAL
};
/* Properties */
enum
{
PROP_0,
PROP_PIXBUF_COLUMN,
PROP_TEXT_COLUMN,
PROP_MARKUP_COLUMN,
PROP_SELECTION_MODE,
PROP_ITEM_ORIENTATION,
PROP_MODEL,
PROP_COLUMNS,
PROP_ITEM_WIDTH,
PROP_SPACING,
PROP_ROW_SPACING,
PROP_COLUMN_SPACING,
PROP_MARGIN,
PROP_REORDERABLE,
PROP_TOOLTIP_COLUMN,
PROP_ITEM_PADDING
};
/* GObject vfuncs */
static void gtk_icon_view_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_icon_view_finalize (GObject *object);
static void gtk_icon_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_icon_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* GtkObject vfuncs */
static void gtk_icon_view_destroy (GtkObject *object);
/* GtkWidget vfuncs */
static void gtk_icon_view_realize (GtkWidget *widget);
static void gtk_icon_view_unrealize (GtkWidget *widget);
static void gtk_icon_view_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_icon_view_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_icon_view_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_icon_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_icon_view_expose (GtkWidget *widget,
GdkEventExpose *expose);
static gboolean gtk_icon_view_motion (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gtk_icon_view_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_icon_view_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_icon_view_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_icon_view_key_release (GtkWidget *widget,
GdkEventKey *event);
static AtkObject *gtk_icon_view_get_accessible (GtkWidget *widget);
/* GtkContainer vfuncs */
static void gtk_icon_view_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_icon_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
/* GtkIconView vfuncs */
static void gtk_icon_view_set_adjustments (GtkIconView *icon_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj);
static void gtk_icon_view_real_select_all (GtkIconView *icon_view);
static void gtk_icon_view_real_unselect_all (GtkIconView *icon_view);
static void gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view);
static void gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view);
static gboolean gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view);
/* Internal functions */
static void gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment,
GtkIconView *icon_view);
static void gtk_icon_view_layout (GtkIconView *icon_view);
static void gtk_icon_view_paint_item (GtkIconView *icon_view,
cairo_t *cr,
GtkIconViewItem *item,
GdkRectangle *area,
GdkDrawable *drawable,
gint x,
gint y,
gboolean draw_focus);
static void gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
cairo_t *cr,
GdkRectangle *area);
static void gtk_icon_view_queue_draw_path (GtkIconView *icon_view,
GtkTreePath *path);
static void gtk_icon_view_queue_draw_item (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_queue_layout (GtkIconView *icon_view);
static void gtk_icon_view_set_cursor_item (GtkIconView *icon_view,
GtkIconViewItem *item,
gint cursor_cell);
static void gtk_icon_view_start_rubberbanding (GtkIconView *icon_view,
GdkDevice *device,
gint x,
gint y);
static void gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view);
static void gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view);
static gboolean gtk_icon_view_item_hit_test (GtkIconView *icon_view,
GtkIconViewItem *item,
gint x,
gint y,
gint width,
gint height);
static gboolean gtk_icon_view_unselect_all_internal (GtkIconView *icon_view);
static void gtk_icon_view_calculate_item_size (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_calculate_item_size2 (GtkIconView *icon_view,
GtkIconViewItem *item,
gint *max_height);
static void gtk_icon_view_update_rubberband (gpointer data);
static void gtk_icon_view_item_invalidate_size (GtkIconViewItem *item);
static void gtk_icon_view_invalidate_sizes (GtkIconView *icon_view);
static void gtk_icon_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
GtkMovementStep step,
gint count);
static gboolean gtk_icon_view_real_move_cursor (GtkIconView *icon_view,
GtkMovementStep step,
gint count);
static void gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view,
gint count);
static void gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view,
gint count);
static void gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view,
gint count);
static void gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view,
gint count);
static void gtk_icon_view_scroll_to_item (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_select_item (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_unselect_item (GtkIconView *icon_view,
GtkIconViewItem *item);
static gboolean gtk_icon_view_select_all_between (GtkIconView *icon_view,
GtkIconViewItem *anchor,
GtkIconViewItem *cursor);
static GtkIconViewItem * gtk_icon_view_get_item_at_coords (GtkIconView *icon_view,
gint x,
gint y,
gboolean only_in_cell,
GtkIconViewCellInfo **cell_at_pos);
static void gtk_icon_view_get_cell_area (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *cell_info,
GdkRectangle *cell_area);
static void gtk_icon_view_get_cell_box (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *info,
GdkRectangle *box);
static GtkIconViewCellInfo *gtk_icon_view_get_cell_info (GtkIconView *icon_view,
GtkCellRenderer *renderer);
static void gtk_icon_view_set_cell_data (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_icon_view_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_icon_view_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *renderer,
const gchar *attribute,
gint column);
static void gtk_icon_view_cell_layout_clear (GtkCellLayout *layout);
static void gtk_icon_view_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *renderer);
static void gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_icon_view_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position);
static GList * gtk_icon_view_cell_layout_get_cells (GtkCellLayout *layout);
static void gtk_icon_view_item_activate_cell (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *cell_info,
GdkEvent *event);
static void gtk_icon_view_item_selected_changed (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_put (GtkIconView *icon_view,
GtkWidget *widget,
GtkIconViewItem *item,
gint cell);
static void gtk_icon_view_remove_widget (GtkCellEditable *editable,
GtkIconView *icon_view);
static void gtk_icon_view_start_editing (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *cell_info,
GdkEvent *event);
static void gtk_icon_view_stop_editing (GtkIconView *icon_view,
gboolean cancel_editing);
/* Source side drag signals */
static void gtk_icon_view_drag_begin (GtkWidget *widget,
GdkDragContext *context);
static void gtk_icon_view_drag_end (GtkWidget *widget,
GdkDragContext *context);
static void gtk_icon_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_icon_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context);
/* Target side drag signals */
static void gtk_icon_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gtk_icon_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean gtk_icon_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_icon_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
static gboolean gtk_icon_view_maybe_begin_drag (GtkIconView *icon_view,
GdkEventMotion *event);
static void remove_scroll_timeout (GtkIconView *icon_view);
static void adjust_wrap_width (GtkIconView *icon_view,
GtkIconViewItem *item);
/* GtkBuildable */
static GtkBuildableIface *parent_buildable_iface;
static void gtk_icon_view_buildable_init (GtkBuildableIface *iface);
static gboolean gtk_icon_view_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_icon_view_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data);
static guint icon_view_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GtkIconView, gtk_icon_view, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_icon_view_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_icon_view_buildable_init))
static void
gtk_icon_view_class_init (GtkIconViewClass *klass)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkBindingSet *binding_set;
binding_set = gtk_binding_set_by_class (klass);
g_type_class_add_private (klass, sizeof (GtkIconViewPrivate));
gobject_class = (GObjectClass *) klass;
object_class = (GtkObjectClass *) klass;
widget_class = (GtkWidgetClass *) klass;
container_class = (GtkContainerClass *) klass;
gobject_class->finalize = gtk_icon_view_finalize;
gobject_class->set_property = gtk_icon_view_set_property;
gobject_class->get_property = gtk_icon_view_get_property;
object_class->destroy = gtk_icon_view_destroy;
widget_class->realize = gtk_icon_view_realize;
widget_class->unrealize = gtk_icon_view_unrealize;
widget_class->style_set = gtk_icon_view_style_set;
widget_class->get_accessible = gtk_icon_view_get_accessible;
widget_class->size_request = gtk_icon_view_size_request;
widget_class->size_allocate = gtk_icon_view_size_allocate;
widget_class->expose_event = gtk_icon_view_expose;
widget_class->motion_notify_event = gtk_icon_view_motion;
widget_class->button_press_event = gtk_icon_view_button_press;
widget_class->button_release_event = gtk_icon_view_button_release;
widget_class->key_press_event = gtk_icon_view_key_press;
widget_class->key_release_event = gtk_icon_view_key_release;
widget_class->drag_begin = gtk_icon_view_drag_begin;
widget_class->drag_end = gtk_icon_view_drag_end;
widget_class->drag_data_get = gtk_icon_view_drag_data_get;
widget_class->drag_data_delete = gtk_icon_view_drag_data_delete;
widget_class->drag_leave = gtk_icon_view_drag_leave;
widget_class->drag_motion = gtk_icon_view_drag_motion;
widget_class->drag_drop = gtk_icon_view_drag_drop;
widget_class->drag_data_received = gtk_icon_view_drag_data_received;
widget_class->state_changed = gtk_icon_view_state_changed;
container_class->remove = gtk_icon_view_remove;
container_class->forall = gtk_icon_view_forall;
klass->set_scroll_adjustments = gtk_icon_view_set_adjustments;
klass->select_all = gtk_icon_view_real_select_all;
klass->unselect_all = gtk_icon_view_real_unselect_all;
klass->select_cursor_item = gtk_icon_view_real_select_cursor_item;
klass->toggle_cursor_item = gtk_icon_view_real_toggle_cursor_item;
klass->activate_cursor_item = gtk_icon_view_real_activate_cursor_item;
klass->move_cursor = gtk_icon_view_real_move_cursor;
/* Properties */
/**
* GtkIconView:selection-mode:
*
* The ::selection-mode property specifies the selection mode of
* icon view. If the mode is #GTK_SELECTION_MULTIPLE, rubberband selection
* is enabled, for the other modes, only keyboard selection is possible.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_SELECTION_MODE,
g_param_spec_enum ("selection-mode",
P_("Selection mode"),
P_("The selection mode"),
GTK_TYPE_SELECTION_MODE,
GTK_SELECTION_SINGLE,
GTK_PARAM_READWRITE));
/**
* GtkIconView:pixbuf-column:
*
* The ::pixbuf-column property contains the number of the model column
* containing the pixbufs which are displayed. The pixbuf column must be
* of type #GDK_TYPE_PIXBUF. Setting this property to -1 turns off the
* display of pixbufs.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_PIXBUF_COLUMN,
g_param_spec_int ("pixbuf-column",
P_("Pixbuf column"),
P_("Model column used to retrieve the icon pixbuf from"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
/**
* GtkIconView:text-column:
*
* The ::text-column property contains the number of the model column
* containing the texts which are displayed. The text column must be
* of type #G_TYPE_STRING. If this property and the :markup-column
* property are both set to -1, no texts are displayed.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_TEXT_COLUMN,
g_param_spec_int ("text-column",
P_("Text column"),
P_("Model column used to retrieve the text from"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
/**
* GtkIconView:markup-column:
*
* The ::markup-column property contains the number of the model column
* containing markup information to be displayed. The markup column must be
* of type #G_TYPE_STRING. If this property and the :text-column property
* are both set to column numbers, it overrides the text column.
* If both are set to -1, no texts are displayed.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_MARKUP_COLUMN,
g_param_spec_int ("markup-column",
P_("Markup column"),
P_("Model column used to retrieve the text if using Pango markup"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("Icon View Model"),
P_("The model for the icon view"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
/**
* GtkIconView:columns:
*
* The columns property contains the number of the columns in which the
* items should be displayed. If it is -1, the number of columns will
* be chosen automatically to fill the available area.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_COLUMNS,
g_param_spec_int ("columns",
P_("Number of columns"),
P_("Number of columns to display"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
/**
* GtkIconView:item-width:
*
* The item-width property specifies the width to use for each item.
* If it is set to -1, the icon view will automatically determine a
* suitable item size.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_ITEM_WIDTH,
g_param_spec_int ("item-width",
P_("Width for each item"),
P_("The width used for each item"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
/**
* GtkIconView:spacing:
*
* The spacing property specifies the space which is inserted between
* the cells (i.e. the icon and the text) of an item.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_SPACING,
g_param_spec_int ("spacing",
P_("Spacing"),
P_("Space which is inserted between cells of an item"),
0, G_MAXINT, 0,
GTK_PARAM_READWRITE));
/**
* GtkIconView:row-spacing:
*
* The row-spacing property specifies the space which is inserted between
* the rows of the icon view.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_ROW_SPACING,
g_param_spec_int ("row-spacing",
P_("Row Spacing"),
P_("Space which is inserted between grid rows"),
0, G_MAXINT, 6,
GTK_PARAM_READWRITE));
/**
* GtkIconView:column-spacing:
*
* The column-spacing property specifies the space which is inserted between
* the columns of the icon view.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_COLUMN_SPACING,
g_param_spec_int ("column-spacing",
P_("Column Spacing"),
P_("Space which is inserted between grid columns"),
0, G_MAXINT, 6,
GTK_PARAM_READWRITE));
/**
* GtkIconView:margin:
*
* The margin property specifies the space which is inserted
* at the edges of the icon view.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_MARGIN,
g_param_spec_int ("margin",
P_("Margin"),
P_("Space which is inserted at the edges of the icon view"),
0, G_MAXINT, 6,
GTK_PARAM_READWRITE));
/**
* GtkIconView:item-orientation:
*
* The item-orientation property specifies how the cells (i.e. the icon and
* the text) of the item are positioned relative to each other.
*
* Since: 2.6
*/
g_object_class_install_property (gobject_class,
PROP_ITEM_ORIENTATION,
g_param_spec_enum ("item-orientation",
P_("Item Orientation"),
P_("How the text and icon of each item are positioned relative to each other"),
GTK_TYPE_ORIENTATION,
GTK_ORIENTATION_VERTICAL,
GTK_PARAM_READWRITE));
/**
* GtkIconView:reorderable:
*
* The reorderable property specifies if the items can be reordered
* by DND.
*
* Since: 2.8
*/
g_object_class_install_property (gobject_class,
PROP_REORDERABLE,
g_param_spec_boolean ("reorderable",
P_("Reorderable"),
P_("View is reorderable"),
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TOOLTIP_COLUMN,
g_param_spec_int ("tooltip-column",
P_("Tooltip Column"),
P_("The column in the model containing the tooltip texts for the items"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkIconView:item-padding:
*
* The item-padding property specifies the padding around each
* of the icon view's item.
*
* Since: 2.18
*/
g_object_class_install_property (gobject_class,
PROP_ITEM_PADDING,
g_param_spec_int ("item-padding",
P_("Item Padding"),
P_("Padding around icon view items"),
0, G_MAXINT, 6,
GTK_PARAM_READWRITE));
/* Style properties */
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("selection-box-color",
P_("Selection Box Color"),
P_("Color of the selection box"),
GDK_TYPE_COLOR,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_uchar ("selection-box-alpha",
P_("Selection Box Alpha"),
P_("Opacity of the selection box"),
0, 0xff,
0x40,
GTK_PARAM_READABLE));
/* Signals */
/**
* GtkIconView::set-scroll-adjustments
* @horizontal: the horizontal #GtkAdjustment
* @vertical: the vertical #GtkAdjustment
*
* Set the scroll adjustments for the icon view. Usually scrolled containers
* like #GtkScrolledWindow will emit this signal to connect two instances
* of #GtkScrollbar to the scroll directions of the #GtkIconView.
*/
widget_class->set_scroll_adjustments_signal =
g_signal_new (I_("set-scroll-adjustments"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkIconViewClass, set_scroll_adjustments),
NULL, NULL,
_gtk_marshal_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
/**
* GtkIconView::item-activated:
* @iconview: the object on which the signal is emitted
* @path: the #GtkTreePath for the activated item
*
* The ::item-activated signal is emitted when the method
* gtk_icon_view_item_activated() is called or the user double
* clicks an item. It is also emitted when a non-editable item
* is selected and one of the keys: Space, Return or Enter is
* pressed.
*/
icon_view_signals[ITEM_ACTIVATED] =
g_signal_new (I_("item-activated"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkIconViewClass, item_activated),
NULL, NULL,
g_cclosure_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
GTK_TYPE_TREE_PATH);
/**
* GtkIconView::selection-changed:
* @iconview: the object on which the signal is emitted
*
* The ::selection-changed signal is emitted when the selection
* (i.e. the set of selected items) changes.
*/
icon_view_signals[SELECTION_CHANGED] =
g_signal_new (I_("selection-changed"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkIconViewClass, selection_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkIconView::select-all:
* @iconview: the object on which the signal is emitted
*
* A <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user selects all items.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control selection
* programmatically.
*
* The default binding for this signal is Ctrl-a.
*/
icon_view_signals[SELECT_ALL] =
g_signal_new (I_("select-all"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, select_all),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkIconView::unselect-all:
* @iconview: the object on which the signal is emitted
*
* A <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user unselects all items.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control selection
* programmatically.
*
* The default binding for this signal is Ctrl-Shift-a.
*/
icon_view_signals[UNSELECT_ALL] =
g_signal_new (I_("unselect-all"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, unselect_all),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkIconView::select-cursor-item:
* @iconview: the object on which the signal is emitted
*
* A <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user selects the item that is currently
* focused.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control selection
* programmatically.
*
* There is no default binding for this signal.
*/
icon_view_signals[SELECT_CURSOR_ITEM] =
g_signal_new (I_("select-cursor-item"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, select_cursor_item),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkIconView::toggle-cursor-item:
* @iconview: the object on which the signal is emitted
*
* A <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user toggles whether the currently
* focused item is selected or not. The exact effect of this
* depend on the selection mode.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control selection
* programmatically.
*
* There is no default binding for this signal is Ctrl-Space.
*/
icon_view_signals[TOGGLE_CURSOR_ITEM] =
g_signal_new (I_("toggle-cursor-item"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, toggle_cursor_item),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkIconView::activate-cursor-item:
* @iconview: the object on which the signal is emitted
*
* A <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user activates the currently
* focused item.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control activation
* programmatically.
*
* The default bindings for this signal are Space, Return and Enter.
*/
icon_view_signals[ACTIVATE_CURSOR_ITEM] =
g_signal_new (I_("activate-cursor-item"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, activate_cursor_item),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
/**
* GtkIconView::move-cursor:
* @iconview: the object which received the signal
* @step: the granularity of the move, as a #GtkMovementStep
* @count: the number of @step units to move
*
* The ::move-cursor signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user initiates a cursor movement.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control the cursor
* programmatically.
*
* The default bindings for this signal include
* <itemizedlist>
* <listitem>Arrow keys which move by individual steps</listitem>
* <listitem>Home/End keys which move to the first/last item</listitem>
* <listitem>PageUp/PageDown which move by "pages"</listitem>
* </itemizedlist>
*
* All of these will extend the selection when combined with
* the Shift modifier.
*/
icon_view_signals[MOVE_CURSOR] =
g_signal_new (I_("move-cursor"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkIconViewClass, move_cursor),
NULL, NULL,
_gtk_marshal_BOOLEAN__ENUM_INT,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_MOVEMENT_STEP,
G_TYPE_INT);
/* Key bindings */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK,
"select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_CONTROL_MASK,
"toggle-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK,
"toggle-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0,
"activate-cursor-item", 0);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Up, 0,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Up, 0,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Down, 0,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Down, 0,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_p, GDK_CONTROL_MASK,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_n, GDK_CONTROL_MASK,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Home, 0,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Home, 0,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_End, 0,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_End, 0,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Page_Up, 0,
GTK_MOVEMENT_PAGES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0,
GTK_MOVEMENT_PAGES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Page_Down, 0,
GTK_MOVEMENT_PAGES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0,
GTK_MOVEMENT_PAGES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KEY_KP_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
}
static void
gtk_icon_view_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = _gtk_cell_layout_buildable_add_child;
iface->custom_tag_start = gtk_icon_view_buildable_custom_tag_start;
iface->custom_tag_end = gtk_icon_view_buildable_custom_tag_end;
}
static void
gtk_icon_view_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_icon_view_cell_layout_pack_start;
iface->pack_end = gtk_icon_view_cell_layout_pack_end;
iface->clear = gtk_icon_view_cell_layout_clear;
iface->add_attribute = gtk_icon_view_cell_layout_add_attribute;
iface->set_cell_data_func = gtk_icon_view_cell_layout_set_cell_data_func;
iface->clear_attributes = gtk_icon_view_cell_layout_clear_attributes;
iface->reorder = gtk_icon_view_cell_layout_reorder;
iface->get_cells = gtk_icon_view_cell_layout_get_cells;
}
static void
gtk_icon_view_init (GtkIconView *icon_view)
{
icon_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (icon_view,
GTK_TYPE_ICON_VIEW,
GtkIconViewPrivate);
icon_view->priv->width = 0;
icon_view->priv->height = 0;
icon_view->priv->selection_mode = GTK_SELECTION_SINGLE;
icon_view->priv->pressed_button = -1;
icon_view->priv->press_start_x = -1;
icon_view->priv->press_start_y = -1;
icon_view->priv->text_column = -1;
icon_view->priv->markup_column = -1;
icon_view->priv->pixbuf_column = -1;
icon_view->priv->text_cell = -1;
icon_view->priv->pixbuf_cell = -1;
icon_view->priv->tooltip_column = -1;
gtk_widget_set_can_focus (GTK_WIDGET (icon_view), TRUE);
gtk_icon_view_set_adjustments (icon_view, NULL, NULL);
icon_view->priv->cell_list = NULL;
icon_view->priv->n_cells = 0;
icon_view->priv->cursor_cell = -1;
icon_view->priv->item_orientation = GTK_ORIENTATION_VERTICAL;
icon_view->priv->columns = -1;
icon_view->priv->item_width = -1;
icon_view->priv->spacing = 0;
icon_view->priv->row_spacing = 6;
icon_view->priv->column_spacing = 6;
icon_view->priv->margin = 6;
icon_view->priv->item_padding = 6;
icon_view->priv->draw_focus = TRUE;
}
static void
gtk_icon_view_destroy (GtkObject *object)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (object);
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_set_model (icon_view, NULL);
if (icon_view->priv->layout_idle_id != 0)
{
g_source_remove (icon_view->priv->layout_idle_id);
icon_view->priv->layout_idle_id = 0;
}
if (icon_view->priv->scroll_to_path != NULL)
{
gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
icon_view->priv->scroll_to_path = NULL;
}
remove_scroll_timeout (icon_view);
if (icon_view->priv->hadjustment != NULL)
{
g_object_unref (icon_view->priv->hadjustment);
icon_view->priv->hadjustment = NULL;
}
if (icon_view->priv->vadjustment != NULL)
{
g_object_unref (icon_view->priv->vadjustment);
icon_view->priv->vadjustment = NULL;
}
GTK_OBJECT_CLASS (gtk_icon_view_parent_class)->destroy (object);
}
/* GObject methods */
static void
gtk_icon_view_finalize (GObject *object)
{
gtk_icon_view_cell_layout_clear (GTK_CELL_LAYOUT (object));
G_OBJECT_CLASS (gtk_icon_view_parent_class)->finalize (object);
}
static void
gtk_icon_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (object);
switch (prop_id)
{
case PROP_SELECTION_MODE:
gtk_icon_view_set_selection_mode (icon_view, g_value_get_enum (value));
break;
case PROP_PIXBUF_COLUMN:
gtk_icon_view_set_pixbuf_column (icon_view, g_value_get_int (value));
break;
case PROP_TEXT_COLUMN:
gtk_icon_view_set_text_column (icon_view, g_value_get_int (value));
break;
case PROP_MARKUP_COLUMN:
gtk_icon_view_set_markup_column (icon_view, g_value_get_int (value));
break;
case PROP_MODEL:
gtk_icon_view_set_model (icon_view, g_value_get_object (value));
break;
case PROP_ITEM_ORIENTATION:
gtk_icon_view_set_item_orientation (icon_view, g_value_get_enum (value));
break;
case PROP_COLUMNS:
gtk_icon_view_set_columns (icon_view, g_value_get_int (value));
break;
case PROP_ITEM_WIDTH:
gtk_icon_view_set_item_width (icon_view, g_value_get_int (value));
break;
case PROP_SPACING:
gtk_icon_view_set_spacing (icon_view, g_value_get_int (value));
break;
case PROP_ROW_SPACING:
gtk_icon_view_set_row_spacing (icon_view, g_value_get_int (value));
break;
case PROP_COLUMN_SPACING:
gtk_icon_view_set_column_spacing (icon_view, g_value_get_int (value));
break;
case PROP_MARGIN:
gtk_icon_view_set_margin (icon_view, g_value_get_int (value));
break;
case PROP_REORDERABLE:
gtk_icon_view_set_reorderable (icon_view, g_value_get_boolean (value));
break;
case PROP_TOOLTIP_COLUMN:
gtk_icon_view_set_tooltip_column (icon_view, g_value_get_int (value));
break;
case PROP_ITEM_PADDING:
gtk_icon_view_set_item_padding (icon_view, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_icon_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (object);
switch (prop_id)
{
case PROP_SELECTION_MODE:
g_value_set_enum (value, icon_view->priv->selection_mode);
break;
case PROP_PIXBUF_COLUMN:
g_value_set_int (value, icon_view->priv->pixbuf_column);
break;
case PROP_TEXT_COLUMN:
g_value_set_int (value, icon_view->priv->text_column);
break;
case PROP_MARKUP_COLUMN:
g_value_set_int (value, icon_view->priv->markup_column);
break;
case PROP_MODEL:
g_value_set_object (value, icon_view->priv->model);
break;
case PROP_ITEM_ORIENTATION:
g_value_set_enum (value, icon_view->priv->item_orientation);
break;
case PROP_COLUMNS:
g_value_set_int (value, icon_view->priv->columns);
break;
case PROP_ITEM_WIDTH:
g_value_set_int (value, icon_view->priv->item_width);
break;
case PROP_SPACING:
g_value_set_int (value, icon_view->priv->spacing);
break;
case PROP_ROW_SPACING:
g_value_set_int (value, icon_view->priv->row_spacing);
break;
case PROP_COLUMN_SPACING:
g_value_set_int (value, icon_view->priv->column_spacing);
break;
case PROP_MARGIN:
g_value_set_int (value, icon_view->priv->margin);
break;
case PROP_REORDERABLE:
g_value_set_boolean (value, icon_view->priv->reorderable);
break;
case PROP_TOOLTIP_COLUMN:
g_value_set_int (value, icon_view->priv->tooltip_column);
break;
case PROP_ITEM_PADDING:
g_value_set_int (value, icon_view->priv->item_padding);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GtkWidget signals */
static void
gtk_icon_view_realize (GtkWidget *widget)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
GtkAllocation allocation;
GdkWindow *window;
GdkWindowAttr attributes;
gint attributes_mask;
gtk_widget_set_realized (widget, TRUE);
gtk_widget_get_allocation (widget, &allocation);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gtk_widget_set_window (widget, window);
gdk_window_set_back_pixmap (window, NULL, FALSE);
gdk_window_set_user_data (window, widget);
gtk_widget_get_allocation (widget, &allocation);
/* Make the window for the icon view */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (icon_view->priv->width, allocation.width);
attributes.height = MAX (icon_view->priv->height, allocation.height);
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK) |
gtk_widget_get_events (widget);
icon_view->priv->bin_window = gdk_window_new (window,
&attributes, attributes_mask);
gdk_window_set_user_data (icon_view->priv->bin_window, widget);
gtk_widget_style_attach (widget);
gdk_window_set_background (icon_view->priv->bin_window,
&gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
gdk_window_show (icon_view->priv->bin_window);
}
static void
gtk_icon_view_unrealize (GtkWidget *widget)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (widget);
gdk_window_set_user_data (icon_view->priv->bin_window, NULL);
gdk_window_destroy (icon_view->priv->bin_window);
icon_view->priv->bin_window = NULL;
GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->unrealize (widget);
}
static void
gtk_icon_view_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
GtkStateType state;
GtkStyle *style;
if (gtk_widget_get_realized (widget))
{
style = gtk_widget_get_style (widget);
state = gtk_widget_get_state (widget);
gdk_window_set_background (gtk_widget_get_window (widget), &style->base[state]);
gdk_window_set_background (icon_view->priv->bin_window, &style->base[state]);
}
gtk_widget_queue_draw (widget);
}
static void
gtk_icon_view_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
GtkStateType state;
GtkStyle *style;
if (gtk_widget_get_realized (widget))
{
style = gtk_widget_get_style (widget);
state = gtk_widget_get_state (widget);
gdk_window_set_background (gtk_widget_get_window (widget), &style->base[state]);
gdk_window_set_background (icon_view->priv->bin_window, &style->base[state]);
}
gtk_widget_queue_resize (widget);
}
static void
gtk_icon_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
GList *tmp_list;
requisition->width = icon_view->priv->width;
requisition->height = icon_view->priv->height;
tmp_list = icon_view->priv->children;
while (tmp_list)
{
GtkIconViewChild *child = tmp_list->data;
GtkRequisition child_requisition;
tmp_list = tmp_list->next;
if (gtk_widget_get_visible (child->widget))
gtk_widget_size_request (child->widget, &child_requisition);
}
}
static void
gtk_icon_view_allocate_children (GtkIconView *icon_view)
{
GList *list;
for (list = icon_view->priv->children; list; list = list->next)
{
GtkIconViewChild *child = list->data;
GtkAllocation allocation;
/* totally ignore our child's requisition */
if (child->cell < 0)
{
allocation.x = child->item->x + icon_view->priv->item_padding;
allocation.y = child->item->y + icon_view->priv->item_padding;
allocation.width = child->item->width - icon_view->priv->item_padding * 2;
allocation.height = child->item->height - icon_view->priv->item_padding * 2;
}
else
{
GdkRectangle *box = &child->item->box[child->cell];
allocation.x = box->x;
allocation.y = box->y;
allocation.width = box->width;
allocation.height = box->height;
}
gtk_widget_size_allocate (child->widget, &allocation);
}
}
static void
gtk_icon_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
GtkAdjustment *hadjustment, *vadjustment;
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (gtk_widget_get_window (widget),
allocation->x, allocation->y,
allocation->width, allocation->height);
gdk_window_resize (icon_view->priv->bin_window,
MAX (icon_view->priv->width, allocation->width),
MAX (icon_view->priv->height, allocation->height));
}
gtk_icon_view_layout (icon_view);
gtk_icon_view_allocate_children (icon_view);
hadjustment = icon_view->priv->hadjustment;
vadjustment = icon_view->priv->vadjustment;
hadjustment->page_size = allocation->width;
hadjustment->page_increment = allocation->width * 0.9;
hadjustment->step_increment = allocation->width * 0.1;
hadjustment->lower = 0;
hadjustment->upper = MAX (allocation->width, icon_view->priv->width);
if (hadjustment->value > hadjustment->upper - hadjustment->page_size)
gtk_adjustment_set_value (hadjustment, hadjustment->upper - hadjustment->page_size);
vadjustment->page_size = allocation->height;
vadjustment->page_increment = allocation->height * 0.9;
vadjustment->step_increment = allocation->height * 0.1;
vadjustment->lower = 0;
vadjustment->upper = MAX (allocation->height, icon_view->priv->height);
if (vadjustment->value > vadjustment->upper - vadjustment->page_size)
gtk_adjustment_set_value (vadjustment, vadjustment->upper - vadjustment->page_size);
if (gtk_widget_get_realized (widget) &&
icon_view->priv->scroll_to_path)
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path);
gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
icon_view->priv->scroll_to_path = NULL;
gtk_icon_view_scroll_to_path (icon_view, path,
icon_view->priv->scroll_to_use_align,
icon_view->priv->scroll_to_row_align,
icon_view->priv->scroll_to_col_align);
gtk_tree_path_free (path);
}
else
{
gtk_adjustment_changed (hadjustment);
gtk_adjustment_changed (vadjustment);
}
}
static gboolean
gtk_icon_view_expose (GtkWidget *widget,
GdkEventExpose *expose)
{
GtkIconView *icon_view;
GList *icons;
cairo_t *cr;
GtkTreePath *path;
gint dest_index;
GtkIconViewDropPosition dest_pos;
GtkIconViewItem *dest_item = NULL;
icon_view = GTK_ICON_VIEW (widget);
if (expose->window != icon_view->priv->bin_window)
return FALSE;
/* If a layout has been scheduled, do it now so that all
* cell view items have valid sizes before we proceed. */
if (icon_view->priv->layout_idle_id != 0)
gtk_icon_view_layout (icon_view);
cr = gdk_cairo_create (icon_view->priv->bin_window);
cairo_set_line_width (cr, 1.);
gtk_icon_view_get_drag_dest_item (icon_view, &path, &dest_pos);
if (path)
{
dest_index = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
}
else
dest_index = -1;
for (icons = icon_view->priv->items; icons; icons = icons->next)
{
GtkIconViewItem *item = icons->data;
GdkRectangle area;
area.x = item->x;
area.y = item->y;
area.width = item->width;
area.height = item->height;
if (cairo_region_contains_rectangle (expose->region, &area) == CAIRO_REGION_OVERLAP_OUT)
continue;
gtk_icon_view_paint_item (icon_view, cr, item, &expose->area,
icon_view->priv->bin_window,
item->x, item->y,
icon_view->priv->draw_focus);
if (dest_index == item->index)
dest_item = item;
}
if (dest_item)
{
GtkStateType state;
GtkStyle *style;
style = gtk_widget_get_style (widget);
state = gtk_widget_get_state (widget);
switch (dest_pos)
{
case GTK_ICON_VIEW_DROP_INTO:
gtk_paint_focus (style, icon_view->priv->bin_window,
state, NULL,
widget,
"iconview-drop-indicator",
dest_item->x, dest_item->y,
dest_item->width, dest_item->height);
break;
case GTK_ICON_VIEW_DROP_ABOVE:
gtk_paint_focus (style, icon_view->priv->bin_window,
state, NULL,
widget,
"iconview-drop-indicator",
dest_item->x, dest_item->y - 1,
dest_item->width, 2);
break;
case GTK_ICON_VIEW_DROP_LEFT:
gtk_paint_focus (style, icon_view->priv->bin_window,
state, NULL,
widget,
"iconview-drop-indicator",
dest_item->x - 1, dest_item->y,
2, dest_item->height);
break;
case GTK_ICON_VIEW_DROP_BELOW:
gtk_paint_focus (style, icon_view->priv->bin_window,
state, NULL,
widget,
"iconview-drop-indicator",
dest_item->x, dest_item->y + dest_item->height - 1,
dest_item->width, 2);
break;
case GTK_ICON_VIEW_DROP_RIGHT:
gtk_paint_focus (style, icon_view->priv->bin_window,
state, NULL,
widget,
"iconview-drop-indicator",
dest_item->x + dest_item->width - 1, dest_item->y,
2, dest_item->height);
case GTK_ICON_VIEW_NO_DROP: ;
break;
}
}
if (icon_view->priv->doing_rubberband)
{
cairo_rectangle_int_t rectangle;
gint n_rectangles;
n_rectangles = cairo_region_num_rectangles (expose->region);
while (n_rectangles--)
{
cairo_region_get_rectangle (expose->region, n_rectangles, &rectangle);
gtk_icon_view_paint_rubberband (icon_view, cr, &rectangle);
}
}
cairo_destroy (cr);
GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->expose_event (widget, expose);
return TRUE;
}
static gboolean
rubberband_scroll_timeout (gpointer data)
{
GtkIconView *icon_view = data;
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value +
icon_view->priv->scroll_value_diff);
gtk_icon_view_update_rubberband (icon_view);
return TRUE;
}
static gboolean
gtk_icon_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkAllocation allocation;
GtkIconView *icon_view;
gint abs_y;
icon_view = GTK_ICON_VIEW (widget);
gtk_icon_view_maybe_begin_drag (icon_view, event);
if (icon_view->priv->doing_rubberband)
{
gtk_icon_view_update_rubberband (widget);
abs_y = event->y - icon_view->priv->height *
(icon_view->priv->vadjustment->value /
(icon_view->priv->vadjustment->upper -
icon_view->priv->vadjustment->lower));
gtk_widget_get_allocation (widget, &allocation);
if (abs_y < 0 || abs_y > allocation.height)
{
if (abs_y < 0)
icon_view->priv->scroll_value_diff = abs_y;
else
icon_view->priv->scroll_value_diff = abs_y - allocation.height;
icon_view->priv->event_last_x = event->x;
icon_view->priv->event_last_y = event->y;
if (icon_view->priv->scroll_timeout_id == 0)
icon_view->priv->scroll_timeout_id = gdk_threads_add_timeout (30, rubberband_scroll_timeout,
icon_view);
}
else
remove_scroll_timeout (icon_view);
}
return TRUE;
}
static void
gtk_icon_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkIconView *icon_view;
GtkIconViewChild *child = NULL;
GList *tmp_list;
icon_view = GTK_ICON_VIEW (container);
tmp_list = icon_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
if (child->widget == widget)
{
gtk_widget_unparent (widget);
icon_view->priv->children = g_list_remove_link (icon_view->priv->children, tmp_list);
g_list_free_1 (tmp_list);
g_free (child);
return;
}
tmp_list = tmp_list->next;
}
}
static void
gtk_icon_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkIconView *icon_view;
GtkIconViewChild *child = NULL;
GList *tmp_list;
icon_view = GTK_ICON_VIEW (container);
tmp_list = icon_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
tmp_list = tmp_list->next;
(* callback) (child->widget, callback_data);
}
}
static void
gtk_icon_view_item_activate_cell (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *info,
GdkEvent *event)
{
GtkTreePath *path;
gchar *path_string;
GdkRectangle cell_area;
gboolean visible, mode;
gtk_icon_view_set_cell_data (icon_view, item);
g_object_get (info->cell,
"visible", &visible,
"mode", &mode,
NULL);
if (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
{
gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
path = gtk_tree_path_new_from_indices (item->index, -1);
path_string = gtk_tree_path_to_string (path);
gtk_tree_path_free (path);
gtk_cell_renderer_activate (info->cell,
event,
GTK_WIDGET (icon_view),
path_string,
&cell_area,
&cell_area,
0);
g_free (path_string);
}
}
static void
gtk_icon_view_item_selected_changed (GtkIconView *icon_view,
GtkIconViewItem *item)
{
AtkObject *obj;
AtkObject *item_obj;
obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
if (obj != NULL)
{
item_obj = atk_object_ref_accessible_child (obj, item->index);
if (item_obj != NULL)
{
atk_object_notify_state_change (item_obj, ATK_STATE_SELECTED, item->selected);
g_object_unref (item_obj);
}
}
}
static void
gtk_icon_view_put (GtkIconView *icon_view,
GtkWidget *widget,
GtkIconViewItem *item,
gint cell)
{
GtkIconViewChild *child;
child = g_new (GtkIconViewChild, 1);
child->widget = widget;
child->item = item;
child->cell = cell;
icon_view->priv->children = g_list_append (icon_view->priv->children, child);
if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
gtk_widget_set_parent_window (child->widget, icon_view->priv->bin_window);
gtk_widget_set_parent (widget, GTK_WIDGET (icon_view));
}
static void
gtk_icon_view_remove_widget (GtkCellEditable *editable,
GtkIconView *icon_view)
{
GList *l;
GtkIconViewItem *item;
if (icon_view->priv->edited_item == NULL)
return;
item = icon_view->priv->edited_item;
icon_view->priv->edited_item = NULL;
icon_view->priv->editable = NULL;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = l->data;
info->editing = FALSE;
}
if (gtk_widget_has_focus (GTK_WIDGET (editable)))
gtk_widget_grab_focus (GTK_WIDGET (icon_view));
g_signal_handlers_disconnect_by_func (editable,
gtk_icon_view_remove_widget,
icon_view);
gtk_container_remove (GTK_CONTAINER (icon_view),
GTK_WIDGET (editable));
gtk_icon_view_queue_draw_item (icon_view, item);
}
static void
gtk_icon_view_start_editing (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *info,
GdkEvent *event)
{
GtkTreePath *path;
gchar *path_string;
GdkRectangle cell_area;
gboolean visible, mode;
GtkCellEditable *editable;
gtk_icon_view_set_cell_data (icon_view, item);
g_object_get (info->cell,
"visible", &visible,
"mode", &mode,
NULL);
if (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE)
{
gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
path = gtk_tree_path_new_from_indices (item->index, -1);
path_string = gtk_tree_path_to_string (path);
gtk_tree_path_free (path);
editable = gtk_cell_renderer_start_editing (info->cell,
event,
GTK_WIDGET (icon_view),
path_string,
&cell_area,
&cell_area,
0);
g_free (path_string);
/* the rest corresponds to tree_view_real_start_editing... */
icon_view->priv->edited_item = item;
icon_view->priv->editable = editable;
info->editing = TRUE;
gtk_icon_view_put (icon_view, GTK_WIDGET (editable), item,
info->position);
gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (editable),
(GdkEvent *)event);
gtk_widget_grab_focus (GTK_WIDGET (editable));
g_signal_connect (editable, "remove-widget",
G_CALLBACK (gtk_icon_view_remove_widget),
icon_view);
}
}
static void
gtk_icon_view_stop_editing (GtkIconView *icon_view,
gboolean cancel_editing)
{
GtkCellRenderer *cell = NULL;
GtkIconViewItem *item;
GList *l;
if (icon_view->priv->edited_item == NULL)
return;
/*
* This is very evil. We need to do this, because
* gtk_cell_editable_editing_done may trigger gtk_icon_view_row_changed
* later on. If gtk_icon_view_row_changed notices
* icon_view->priv->edited_item != NULL, it'll call
* gtk_icon_view_stop_editing again. Bad things will happen then.
*
* Please read that again if you intend to modify anything here.
*/
item = icon_view->priv->edited_item;
icon_view->priv->edited_item = NULL;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = l->data;
if (info->editing)
{
cell = info->cell;
break;
}
}
if (cell == NULL)
return;
gtk_cell_renderer_stop_editing (cell, cancel_editing);
if (!cancel_editing)
gtk_cell_editable_editing_done (icon_view->priv->editable);
icon_view->priv->edited_item = item;
gtk_cell_editable_remove_widget (icon_view->priv->editable);
}
/**
* gtk_icon_view_set_cursor:
* @icon_view: A #GtkIconView
* @path: A #GtkTreePath
* @cell: (allow-none): One of the cell renderers of @icon_view, or %NULL
* @start_editing: %TRUE if the specified cell should start being edited.
*
* Sets the current keyboard focus to be at @path, and selects it. This is
* useful when you want to focus the user's attention on a particular item.
* If @cell is not %NULL, then focus is given to the cell specified by
* it. Additionally, if @start_editing is %TRUE, then editing should be
* started in the specified cell.
*
* This function is often followed by <literal>gtk_widget_grab_focus
* (icon_view)</literal> in order to give keyboard focus to the widget.
* Please note that editing can only happen when the widget is realized.
*
* Since: 2.8
**/
void
gtk_icon_view_set_cursor (GtkIconView *icon_view,
GtkTreePath *path,
GtkCellRenderer *cell,
gboolean start_editing)
{
GtkIconViewItem *item = NULL;
GtkIconViewCellInfo *info = NULL;
GList *l;
gint i, cell_pos;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (path != NULL);
g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
gtk_icon_view_stop_editing (icon_view, TRUE);
if (gtk_tree_path_get_depth (path) == 1)
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return;
cell_pos = -1;
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
info = l->data;
if (info->cell == cell)
{
cell_pos = i;
break;
}
info = NULL;
}
g_return_if_fail (cell == NULL || info != NULL);
gtk_icon_view_set_cursor_item (icon_view, item, cell_pos);
gtk_icon_view_scroll_to_path (icon_view, path, FALSE, 0.0, 0.0);
if (info && start_editing)
gtk_icon_view_start_editing (icon_view, item, info, NULL);
}
/**
* gtk_icon_view_get_cursor:
* @icon_view: A #GtkIconView
* @path: (allow-none): Return location for the current cursor path, or %NULL
* @cell: (allow-none): Return location the current focus cell, or %NULL
*
* Fills in @path and @cell with the current cursor path and cell.
* If the cursor isn't currently set, then *@path will be %NULL.
* If no cell currently has focus, then *@cell will be %NULL.
*
* The returned #GtkTreePath must be freed with gtk_tree_path_free().
*
* Return value: %TRUE if the cursor is set.
*
* Since: 2.8
**/
gboolean
gtk_icon_view_get_cursor (GtkIconView *icon_view,
GtkTreePath **path,
GtkCellRenderer **cell)
{
GtkIconViewItem *item;
GtkIconViewCellInfo *info;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
item = icon_view->priv->cursor_item;
if (icon_view->priv->cursor_cell < 0)
info = NULL;
else
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->cursor_cell);
if (path != NULL)
{
if (item != NULL)
*path = gtk_tree_path_new_from_indices (item->index, -1);
else
*path = NULL;
}
if (cell != NULL)
{
if (info != NULL)
*cell = info->cell;
else
*cell = NULL;
}
return (item != NULL);
}
static gboolean
gtk_icon_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkIconView *icon_view;
GtkIconViewItem *item;
GtkIconViewCellInfo *info = NULL;
gboolean dirty = FALSE;
GtkCellRendererMode mode;
gint cursor_cell = -1;
icon_view = GTK_ICON_VIEW (widget);
if (event->window != icon_view->priv->bin_window)
return FALSE;
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
{
item = gtk_icon_view_get_item_at_coords (icon_view,
event->x, event->y,
FALSE,
&info);
/*
* We consider only the the cells' area as the item area if the
* item is not selected, but if it *is* selected, the complete
* selection rectangle is considered to be part of the item.
*/
if (item != NULL && (info != NULL || item->selected))
{
if (info != NULL)
{
g_object_get (info->cell, "mode", &mode, NULL);
if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE ||
mode == GTK_CELL_RENDERER_MODE_EDITABLE)
cursor_cell = g_list_index (icon_view->priv->cell_list, info);
}
gtk_icon_view_scroll_to_item (icon_view, item);
if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
{
gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
}
else if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
(event->state & GDK_SHIFT_MASK))
{
gtk_icon_view_unselect_all_internal (icon_view);
gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
if (!icon_view->priv->anchor_item)
icon_view->priv->anchor_item = item;
else
gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item);
dirty = TRUE;
}
else
{
if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE ||
((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) &&
(event->state & GDK_CONTROL_MASK))
{
item->selected = !item->selected;
gtk_icon_view_queue_draw_item (icon_view, item);
dirty = TRUE;
}
else
{
gtk_icon_view_unselect_all_internal (icon_view);
item->selected = TRUE;
gtk_icon_view_queue_draw_item (icon_view, item);
dirty = TRUE;
}
gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
icon_view->priv->anchor_item = item;
}
/* Save press to possibly begin a drag */
if (icon_view->priv->pressed_button < 0)
{
icon_view->priv->pressed_button = event->button;
icon_view->priv->press_start_x = event->x;
icon_view->priv->press_start_y = event->y;
}
if (!icon_view->priv->last_single_clicked)
icon_view->priv->last_single_clicked = item;
/* cancel the current editing, if it exists */
gtk_icon_view_stop_editing (icon_view, TRUE);
if (info != NULL)
{
if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
gtk_icon_view_item_activate_cell (icon_view, item, info,
(GdkEvent *)event);
else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
gtk_icon_view_start_editing (icon_view, item, info,
(GdkEvent *)event);
}
}
else
{
if (icon_view->priv->selection_mode != GTK_SELECTION_BROWSE &&
!(event->state & GDK_CONTROL_MASK))
{
dirty = gtk_icon_view_unselect_all_internal (icon_view);
}
if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
gtk_icon_view_start_rubberbanding (icon_view, event->device, event->x, event->y);
}
/* don't draw keyboard focus around an clicked-on item */
icon_view->priv->draw_focus = FALSE;
}
if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
{
item = gtk_icon_view_get_item_at_coords (icon_view,
event->x, event->y,
FALSE,
NULL);
if (item && item == icon_view->priv->last_single_clicked)
{
GtkTreePath *path;
path = gtk_tree_path_new_from_indices (item->index, -1);
gtk_icon_view_item_activated (icon_view, path);
gtk_tree_path_free (path);
}
icon_view->priv->last_single_clicked = NULL;
icon_view->priv->pressed_button = -1;
}
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
return event->button == 1;
}
static gboolean
gtk_icon_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (widget);
if (icon_view->priv->pressed_button == event->button)
icon_view->priv->pressed_button = -1;
gtk_icon_view_stop_rubberbanding (icon_view);
remove_scroll_timeout (icon_view);
return TRUE;
}
static gboolean
gtk_icon_view_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
if (icon_view->priv->doing_rubberband)
{
if (event->keyval == GDK_KEY_Escape)
gtk_icon_view_stop_rubberbanding (icon_view);
return TRUE;
}
return GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->key_press_event (widget, event);
}
static gboolean
gtk_icon_view_key_release (GtkWidget *widget,
GdkEventKey *event)
{
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
if (icon_view->priv->doing_rubberband)
return TRUE;
return GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->key_press_event (widget, event);
}
static void
gtk_icon_view_update_rubberband (gpointer data)
{
GtkIconView *icon_view;
gint x, y;
GdkRectangle old_area;
GdkRectangle new_area;
GdkRectangle common;
cairo_region_t *invalid_region;
icon_view = GTK_ICON_VIEW (data);
gdk_window_get_device_position (icon_view->priv->bin_window,
icon_view->priv->rubberband_device,
&x, &y, NULL);
x = MAX (x, 0);
y = MAX (y, 0);
old_area.x = MIN (icon_view->priv->rubberband_x1,
icon_view->priv->rubberband_x2);
old_area.y = MIN (icon_view->priv->rubberband_y1,
icon_view->priv->rubberband_y2);
old_area.width = ABS (icon_view->priv->rubberband_x2 -
icon_view->priv->rubberband_x1) + 1;
old_area.height = ABS (icon_view->priv->rubberband_y2 -
icon_view->priv->rubberband_y1) + 1;
new_area.x = MIN (icon_view->priv->rubberband_x1, x);
new_area.y = MIN (icon_view->priv->rubberband_y1, y);
new_area.width = ABS (x - icon_view->priv->rubberband_x1) + 1;
new_area.height = ABS (y - icon_view->priv->rubberband_y1) + 1;
invalid_region = cairo_region_create_rectangle (&old_area);
cairo_region_union_rectangle (invalid_region, &new_area);
gdk_rectangle_intersect (&old_area, &new_area, &common);
if (common.width > 2 && common.height > 2)
{
cairo_region_t *common_region;
/* make sure the border is invalidated */
common.x += 1;
common.y += 1;
common.width -= 2;
common.height -= 2;
common_region = cairo_region_create_rectangle (&common);
cairo_region_subtract (invalid_region, common_region);
cairo_region_destroy (common_region);
}
gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE);
cairo_region_destroy (invalid_region);
icon_view->priv->rubberband_x2 = x;
icon_view->priv->rubberband_y2 = y;
gtk_icon_view_update_rubberband_selection (icon_view);
}
static void
gtk_icon_view_start_rubberbanding (GtkIconView *icon_view,
GdkDevice *device,
gint x,
gint y)
{
GList *items;
if (icon_view->priv->rubberband_device)
return;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
item->selected_before_rubberbanding = item->selected;
}
icon_view->priv->rubberband_x1 = x;
icon_view->priv->rubberband_y1 = y;
icon_view->priv->rubberband_x2 = x;
icon_view->priv->rubberband_y2 = y;
icon_view->priv->doing_rubberband = TRUE;
icon_view->priv->rubberband_device = device;
gtk_device_grab_add (GTK_WIDGET (icon_view), device, TRUE);
}
static void
gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view)
{
if (!icon_view->priv->doing_rubberband)
return;
gtk_device_grab_remove (GTK_WIDGET (icon_view),
icon_view->priv->rubberband_device);
icon_view->priv->doing_rubberband = FALSE;
icon_view->priv->rubberband_device = NULL;
gtk_widget_queue_draw (GTK_WIDGET (icon_view));
}
static void
gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view)
{
GList *items;
gint x, y, width, height;
gboolean dirty = FALSE;
x = MIN (icon_view->priv->rubberband_x1,
icon_view->priv->rubberband_x2);
y = MIN (icon_view->priv->rubberband_y1,
icon_view->priv->rubberband_y2);
width = ABS (icon_view->priv->rubberband_x1 -
icon_view->priv->rubberband_x2);
height = ABS (icon_view->priv->rubberband_y1 -
icon_view->priv->rubberband_y2);
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
gboolean is_in;
gboolean selected;
is_in = gtk_icon_view_item_hit_test (icon_view, item,
x, y, width, height);
selected = is_in ^ item->selected_before_rubberbanding;
if (item->selected != selected)
{
item->selected = selected;
dirty = TRUE;
gtk_icon_view_queue_draw_item (icon_view, item);
}
}
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
static gboolean
gtk_icon_view_item_hit_test (GtkIconView *icon_view,
GtkIconViewItem *item,
gint x,
gint y,
gint width,
gint height)
{
GList *l;
GdkRectangle box;
if (MIN (x + width, item->x + item->width) - MAX (x, item->x) <= 0 ||
MIN (y + height, item->y + item->height) - MAX (y, item->y) <= 0)
return FALSE;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
gtk_icon_view_get_cell_box (icon_view, item, info, &box);
if (MIN (x + width, box.x + box.width) - MAX (x, box.x) > 0 &&
MIN (y + height, box.y + box.height) - MAX (y, box.y) > 0)
return TRUE;
}
return FALSE;
}
static gboolean
gtk_icon_view_unselect_all_internal (GtkIconView *icon_view)
{
gboolean dirty = FALSE;
GList *items;
if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
return FALSE;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
if (item->selected)
{
item->selected = FALSE;
dirty = TRUE;
gtk_icon_view_queue_draw_item (icon_view, item);
gtk_icon_view_item_selected_changed (icon_view, item);
}
}
return dirty;
}
/* GtkIconView signals */
static void
gtk_icon_view_set_adjustments (GtkIconView *icon_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
gboolean need_adjust = FALSE;
if (hadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
else
hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (vadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
else
vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (icon_view->priv->hadjustment && (icon_view->priv->hadjustment != hadj))
{
g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, icon_view);
g_object_unref (icon_view->priv->hadjustment);
}
if (icon_view->priv->vadjustment && (icon_view->priv->vadjustment != vadj))
{
g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, icon_view);
g_object_unref (icon_view->priv->vadjustment);
}
if (icon_view->priv->hadjustment != hadj)
{
icon_view->priv->hadjustment = hadj;
g_object_ref_sink (icon_view->priv->hadjustment);
g_signal_connect (icon_view->priv->hadjustment, "value-changed",
G_CALLBACK (gtk_icon_view_adjustment_changed),
icon_view);
need_adjust = TRUE;
}
if (icon_view->priv->vadjustment != vadj)
{
icon_view->priv->vadjustment = vadj;
g_object_ref_sink (icon_view->priv->vadjustment);
g_signal_connect (icon_view->priv->vadjustment, "value-changed",
G_CALLBACK (gtk_icon_view_adjustment_changed),
icon_view);
need_adjust = TRUE;
}
if (need_adjust)
gtk_icon_view_adjustment_changed (NULL, icon_view);
}
static void
gtk_icon_view_real_select_all (GtkIconView *icon_view)
{
gtk_icon_view_select_all (icon_view);
}
static void
gtk_icon_view_real_unselect_all (GtkIconView *icon_view)
{
gtk_icon_view_unselect_all (icon_view);
}
static void
gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view)
{
gtk_icon_view_unselect_all (icon_view);
if (icon_view->priv->cursor_item != NULL)
gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
}
static gboolean
gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view)
{
GtkTreePath *path;
GtkCellRendererMode mode;
GtkIconViewCellInfo *info = NULL;
if (!icon_view->priv->cursor_item)
return FALSE;
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->cursor_cell);
if (info)
{
g_object_get (info->cell, "mode", &mode, NULL);
if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
{
gtk_icon_view_item_activate_cell (icon_view,
icon_view->priv->cursor_item,
info, NULL);
return TRUE;
}
else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
{
gtk_icon_view_start_editing (icon_view,
icon_view->priv->cursor_item,
info, NULL);
return TRUE;
}
}
path = gtk_tree_path_new_from_indices (icon_view->priv->cursor_item->index, -1);
gtk_icon_view_item_activated (icon_view, path);
gtk_tree_path_free (path);
return TRUE;
}
static void
gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view)
{
if (!icon_view->priv->cursor_item)
return;
switch (icon_view->priv->selection_mode)
{
case GTK_SELECTION_NONE:
break;
case GTK_SELECTION_BROWSE:
gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
break;
case GTK_SELECTION_SINGLE:
if (icon_view->priv->cursor_item->selected)
gtk_icon_view_unselect_item (icon_view, icon_view->priv->cursor_item);
else
gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
break;
case GTK_SELECTION_MULTIPLE:
icon_view->priv->cursor_item->selected = !icon_view->priv->cursor_item->selected;
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
gtk_icon_view_item_selected_changed (icon_view, icon_view->priv->cursor_item);
gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
break;
}
}
/* Internal functions */
static void
gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment,
GtkIconView *icon_view)
{
if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
{
gdk_window_move (icon_view->priv->bin_window,
- icon_view->priv->hadjustment->value,
- icon_view->priv->vadjustment->value);
if (icon_view->priv->doing_rubberband)
gtk_icon_view_update_rubberband (GTK_WIDGET (icon_view));
gdk_window_process_updates (icon_view->priv->bin_window, TRUE);
}
}
static GList *
gtk_icon_view_layout_single_row (GtkIconView *icon_view,
GList *first_item,
gint item_width,
gint row,
gint *y,
gint *maximum_width)
{
GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (icon_view);
gint focus_width;
gint x, current_width;
GList *items, *last_item;
gint col;
gint colspan;
gint *max_height;
gint i;
gboolean rtl;
rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
max_height = g_new0 (gint, icon_view->priv->n_cells);
x = 0;
col = 0;
items = first_item;
current_width = 0;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
NULL);
x += icon_view->priv->margin + focus_width;
current_width += 2 * (icon_view->priv->margin + focus_width);
items = first_item;
while (items)
{
GtkIconViewItem *item = items->data;
gtk_icon_view_calculate_item_size (icon_view, item);
colspan = 1 + (item->width - 1) / (item_width + icon_view->priv->column_spacing);
item->width = colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing;
current_width += item->width;
if (items != first_item)
{
gtk_widget_get_allocation (widget, &allocation);
if ((icon_view->priv->columns <= 0 && current_width > allocation.width) ||
(icon_view->priv->columns > 0 && col >= icon_view->priv->columns))
break;
}
current_width += icon_view->priv->column_spacing + 2 * focus_width;
item->y = *y + focus_width;
item->x = x;
x = current_width - (icon_view->priv->margin + focus_width);
for (i = 0; i < icon_view->priv->n_cells; i++)
max_height[i] = MAX (max_height[i], item->box[i].height);
if (current_width > *maximum_width)
*maximum_width = current_width;
item->row = row;
item->col = col;
col += colspan;
items = items->next;
}
last_item = items;
/* Now go through the row again and align the icons */
for (items = first_item; items != last_item; items = items->next)
{
GtkIconViewItem *item = items->data;
if (rtl)
{
item->x = *maximum_width - item->width - item->x;
item->col = col - 1 - item->col;
}
gtk_icon_view_calculate_item_size2 (icon_view, item, max_height);
/* We may want to readjust the new y coordinate. */
if (item->y + item->height + focus_width + icon_view->priv->row_spacing > *y)
*y = item->y + item->height + focus_width + icon_view->priv->row_spacing;
}
g_free (max_height);
return last_item;
}
static void
gtk_icon_view_set_adjustment_upper (GtkAdjustment *adj,
gdouble upper)
{
if (upper != adj->upper)
{
gdouble min = MAX (0.0, upper - adj->page_size);
gboolean value_changed = FALSE;
adj->upper = upper;
if (adj->value > min)
{
adj->value = min;
value_changed = TRUE;
}
gtk_adjustment_changed (adj);
if (value_changed)
gtk_adjustment_value_changed (adj);
}
}
static void
gtk_icon_view_layout (GtkIconView *icon_view)
{
GtkAllocation allocation;
GtkWidget *widget;
GList *icons;
gint y = 0, maximum_width = 0;
gint row;
gint item_width;
gboolean size_changed = FALSE;
if (icon_view->priv->layout_idle_id != 0)
{
g_source_remove (icon_view->priv->layout_idle_id);
icon_view->priv->layout_idle_id = 0;
}
if (icon_view->priv->model == NULL)
return;
widget = GTK_WIDGET (icon_view);
item_width = icon_view->priv->item_width;
if (item_width < 0)
{
for (icons = icon_view->priv->items; icons; icons = icons->next)
{
GtkIconViewItem *item = icons->data;
gtk_icon_view_calculate_item_size (icon_view, item);
item_width = MAX (item_width, item->width);
}
}
icons = icon_view->priv->items;
y += icon_view->priv->margin;
row = 0;
if (icons)
{
gtk_icon_view_set_cell_data (icon_view, icons->data);
adjust_wrap_width (icon_view, icons->data);
}
do
{
icons = gtk_icon_view_layout_single_row (icon_view, icons,
item_width, row,
&y, &maximum_width);
row++;
}
while (icons != NULL);
if (maximum_width != icon_view->priv->width)
{
icon_view->priv->width = maximum_width;
size_changed = TRUE;
}
y += icon_view->priv->margin;
if (y != icon_view->priv->height)
{
icon_view->priv->height = y;
size_changed = TRUE;
}
gtk_icon_view_set_adjustment_upper (icon_view->priv->hadjustment,
icon_view->priv->width);
gtk_icon_view_set_adjustment_upper (icon_view->priv->vadjustment,
icon_view->priv->height);
if (size_changed)
gtk_widget_queue_resize_no_redraw (widget);
gtk_widget_get_allocation (widget, &allocation);
if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
gdk_window_resize (icon_view->priv->bin_window,
MAX (icon_view->priv->width, allocation.width),
MAX (icon_view->priv->height, allocation.height));
if (icon_view->priv->scroll_to_path)
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path);
gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
icon_view->priv->scroll_to_path = NULL;
gtk_icon_view_scroll_to_path (icon_view, path,
icon_view->priv->scroll_to_use_align,
icon_view->priv->scroll_to_row_align,
icon_view->priv->scroll_to_col_align);
gtk_tree_path_free (path);
}
gtk_widget_queue_draw (widget);
}
static void
gtk_icon_view_get_cell_area (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *info,
GdkRectangle *cell_area)
{
g_return_if_fail (info->position < item->n_cells);
if (icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
{
cell_area->x = item->box[info->position].x - item->before[info->position];
cell_area->y = item->y + icon_view->priv->item_padding;
cell_area->width = item->box[info->position].width +
item->before[info->position] + item->after[info->position];
cell_area->height = item->height - icon_view->priv->item_padding * 2;
}
else
{
cell_area->x = item->x + icon_view->priv->item_padding;
cell_area->y = item->box[info->position].y - item->before[info->position];
cell_area->width = item->width - icon_view->priv->item_padding * 2;
cell_area->height = item->box[info->position].height +
item->before[info->position] + item->after[info->position];
}
}
static void
gtk_icon_view_get_cell_box (GtkIconView *icon_view,
GtkIconViewItem *item,
GtkIconViewCellInfo *info,
GdkRectangle *box)
{
g_return_if_fail (info->position < item->n_cells);
*box = item->box[info->position];
}
/* try to guess a reasonable wrap width for an implicit text cell renderer
*/
static void
adjust_wrap_width (GtkIconView *icon_view,
GtkIconViewItem *item)
{
GtkIconViewCellInfo *text_info;
GtkIconViewCellInfo *pixbuf_info;
gint pixbuf_width, wrap_width;
if (icon_view->priv->text_cell != -1 &&
icon_view->priv->pixbuf_cell != -1)
{
gint item_width;
text_info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->text_cell);
pixbuf_info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->pixbuf_cell);
gtk_cell_renderer_get_size (pixbuf_info->cell,
GTK_WIDGET (icon_view),
NULL, NULL, NULL,
&pixbuf_width,
NULL);
if (icon_view->priv->item_width > 0)
item_width = icon_view->priv->item_width;
else
item_width = item->width;
if (icon_view->priv->item_orientation == GTK_ORIENTATION_VERTICAL)
wrap_width = item_width;
else {
if (item->width == -1 && item_width <= 0)
wrap_width = MAX (2 * pixbuf_width, 50);
else
wrap_width = item_width - pixbuf_width - icon_view->priv->spacing;
}
wrap_width -= icon_view->priv->item_padding * 2;
g_object_set (text_info->cell, "wrap-width", wrap_width, NULL);
g_object_set (text_info->cell, "width", wrap_width, NULL);
}
}
static void
gtk_icon_view_calculate_item_size (GtkIconView *icon_view,
GtkIconViewItem *item)
{
gint spacing;
GList *l;
if (item->width != -1 && item->height != -1)
return;
if (item->n_cells != icon_view->priv->n_cells)
{
g_free (item->before);
g_free (item->after);
g_free (item->box);
item->before = g_new0 (gint, icon_view->priv->n_cells);
item->after = g_new0 (gint, icon_view->priv->n_cells);
item->box = g_new0 (GdkRectangle, icon_view->priv->n_cells);
item->n_cells = icon_view->priv->n_cells;
}
gtk_icon_view_set_cell_data (icon_view, item);
spacing = icon_view->priv->spacing;
item->width = 0;
item->height = 0;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view),
NULL, NULL, NULL,
&item->box[info->position].width,
&item->box[info->position].height);
if (icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
{
item->width += item->box[info->position].width
+ (info->position > 0 ? spacing : 0);
item->height = MAX (item->height, item->box[info->position].height);
}
else
{
item->width = MAX (item->width, item->box[info->position].width);
item->height += item->box[info->position].height + (info->position > 0 ? spacing : 0);
}
}
item->width += icon_view->priv->item_padding * 2;
item->height += icon_view->priv->item_padding * 2;
}
static void
gtk_icon_view_calculate_item_size2 (GtkIconView *icon_view,
GtkIconViewItem *item,
gint *max_height)
{
GdkRectangle cell_area;
gint spacing;
GList *l;
gint i, k;
gboolean rtl;
rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
gtk_icon_view_set_cell_data (icon_view, item);
spacing = icon_view->priv->spacing;
item->height = 0;
for (i = 0; i < icon_view->priv->n_cells; i++)
{
if (icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
item->height = MAX (item->height, max_height[i]);
else
item->height += max_height[i] + (i > 0 ? spacing : 0);
}
cell_area.x = item->x + icon_view->priv->item_padding;
cell_area.y = item->y + icon_view->priv->item_padding;
for (k = 0; k < 2; k++)
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
continue;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
if (icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
{
/* We should not subtract icon_view->priv->item_padding from item->height,
* because item->height is recalculated above using
* max_height which does not contain item padding.
*/
cell_area.width = item->box[info->position].width;
cell_area.height = item->height;
}
else
{
/* item->width is not recalculated and thus needs to be
* corrected for the padding.
*/
cell_area.width = item->width - 2 * icon_view->priv->item_padding;
cell_area.height = max_height[i];
}
gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view),
&cell_area,
&item->box[info->position].x, &item->box[info->position].y,
&item->box[info->position].width, &item->box[info->position].height);
item->box[info->position].x += cell_area.x;
item->box[info->position].y += cell_area.y;
if (icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
{
item->before[info->position] = item->box[info->position].x - cell_area.x;
item->after[info->position] = cell_area.width - item->box[info->position].width - item->before[info->position];
cell_area.x += cell_area.width + spacing;
}
else
{
if (item->box[info->position].width > item->width - icon_view->priv->item_padding * 2)
{
item->width = item->box[info->position].width + icon_view->priv->item_padding * 2;
cell_area.width = item->width;
}
item->before[info->position] = item->box[info->position].y - cell_area.y;
item->after[info->position] = cell_area.height - item->box[info->position].height - item->before[info->position];
cell_area.y += cell_area.height + spacing;
}
}
if (rtl && icon_view->priv->item_orientation == GTK_ORIENTATION_HORIZONTAL)
{
for (i = 0; i < icon_view->priv->n_cells; i++)
{
item->box[i].x = item->x + item->width -
(item->box[i].x + item->box[i].width - item->x);
}
}
item->height += icon_view->priv->item_padding * 2;
}
static void
gtk_icon_view_invalidate_sizes (GtkIconView *icon_view)
{
g_list_foreach (icon_view->priv->items,
(GFunc)gtk_icon_view_item_invalidate_size, NULL);
}
static void
gtk_icon_view_item_invalidate_size (GtkIconViewItem *item)
{
item->width = -1;
item->height = -1;
}
static void
gtk_icon_view_paint_item (GtkIconView *icon_view,
cairo_t *cr,
GtkIconViewItem *item,
GdkRectangle *area,
GdkDrawable *drawable,
gint x,
gint y,
gboolean draw_focus)
{
gint focus_width;
gint padding;
GdkRectangle cell_area, box;
GList *l;
gint i;
GtkStateType state;
GtkCellRendererState flags;
GtkStyle *style;
GtkWidget *widget = GTK_WIDGET (icon_view);
if (icon_view->priv->model == NULL)
return;
gtk_icon_view_set_cell_data (icon_view, item);
style = gtk_widget_get_style (widget);
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
NULL);
padding = focus_width;
if (item->selected)
{
flags = GTK_CELL_RENDERER_SELECTED;
if (gtk_widget_has_focus (widget))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
}
else
{
flags = 0;
state = GTK_STATE_NORMAL;
}
if (item->selected)
{
gtk_paint_flat_box (style,
GDK_WINDOW (drawable),
GTK_STATE_SELECTED,
GTK_SHADOW_NONE,
area,
widget,
"icon_view_item",
x, y,
item->width, item->height);
}
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
cell_area.x = x - item->x + cell_area.x;
cell_area.y = y - item->y + cell_area.y;
gtk_cell_renderer_render (info->cell,
drawable,
widget,
&cell_area, &cell_area, area, flags);
}
if (draw_focus &&
gtk_widget_has_focus (widget) &&
item == icon_view->priv->cursor_item)
{
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
GtkCellRendererMode mode;
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
/* If found a editable/activatable cell, draw focus on it. */
g_object_get (info->cell, "mode", &mode, NULL);
if (icon_view->priv->cursor_cell < 0 &&
mode != GTK_CELL_RENDERER_MODE_INERT)
icon_view->priv->cursor_cell = i;
gtk_icon_view_get_cell_box (icon_view, item, info, &box);
if (i == icon_view->priv->cursor_cell)
{
gtk_paint_focus (style,
drawable,
GTK_STATE_NORMAL,
area,
widget,
"icon_view",
x - item->x + box.x - padding,
y - item->y + box.y - padding,
box.width + 2 * padding,
box.height + 2 * padding);
break;
}
}
/* If there are no editable/activatable cells, draw focus
* around the whole item.
*/
if (icon_view->priv->cursor_cell < 0)
gtk_paint_focus (style,
drawable,
GTK_STATE_NORMAL,
area,
widget,
"icon_view",
x - padding,
y - padding,
item->width + 2 * padding,
item->height + 2 * padding);
}
}
static void
gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
cairo_t *cr,
GdkRectangle *area)
{
GdkRectangle rect;
GdkRectangle rubber_rect;
GdkColor *fill_color_gdk;
guchar fill_color_alpha;
rubber_rect.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
rubber_rect.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
rubber_rect.width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2) + 1;
rubber_rect.height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2) + 1;
if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
return;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"selection-box-color", &fill_color_gdk,
"selection-box-alpha", &fill_color_alpha,
NULL);
if (!fill_color_gdk)
fill_color_gdk = gdk_color_copy (&gtk_widget_get_style (GTK_WIDGET (icon_view))->base[GTK_STATE_SELECTED]);
cairo_set_source_rgba (cr,
fill_color_gdk->red / 65535.,
fill_color_gdk->green / 65535.,
fill_color_gdk->blue / 65535.,
fill_color_alpha / 255.);
cairo_save (cr);
gdk_cairo_rectangle (cr, &rect);
cairo_clip (cr);
cairo_paint (cr);
/* Draw the border without alpha */
cairo_set_source_rgb (cr,
fill_color_gdk->red / 65535.,
fill_color_gdk->green / 65535.,
fill_color_gdk->blue / 65535.);
cairo_rectangle (cr,
rubber_rect.x + 0.5, rubber_rect.y + 0.5,
rubber_rect.width - 1, rubber_rect.height - 1);
cairo_stroke (cr);
cairo_restore (cr);
gdk_color_free (fill_color_gdk);
}
static void
gtk_icon_view_queue_draw_path (GtkIconView *icon_view,
GtkTreePath *path)
{
GList *l;
gint index;
index = gtk_tree_path_get_indices (path)[0];
for (l = icon_view->priv->items; l; l = l->next)
{
GtkIconViewItem *item = l->data;
if (item->index == index)
{
gtk_icon_view_queue_draw_item (icon_view, item);
break;
}
}
}
static void
gtk_icon_view_queue_draw_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
gint focus_width;
GdkRectangle rect;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
NULL);
rect.x = item->x - focus_width;
rect.y = item->y - focus_width;
rect.width = item->width + 2 * focus_width;
rect.height = item->height + 2 * focus_width;
if (icon_view->priv->bin_window)
gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE);
}
static gboolean
layout_callback (gpointer user_data)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (user_data);
icon_view->priv->layout_idle_id = 0;
gtk_icon_view_layout (icon_view);
return FALSE;
}
static void
gtk_icon_view_queue_layout (GtkIconView *icon_view)
{
if (icon_view->priv->layout_idle_id != 0)
return;
icon_view->priv->layout_idle_id = gdk_threads_add_idle (layout_callback, icon_view);
}
static void
gtk_icon_view_set_cursor_item (GtkIconView *icon_view,
GtkIconViewItem *item,
gint cursor_cell)
{
AtkObject *obj;
AtkObject *item_obj;
AtkObject *cursor_item_obj;
if (icon_view->priv->cursor_item == item &&
(cursor_cell < 0 || cursor_cell == icon_view->priv->cursor_cell))
return;
obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
if (icon_view->priv->cursor_item != NULL)
{
gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
if (obj != NULL)
{
cursor_item_obj = atk_object_ref_accessible_child (obj, icon_view->priv->cursor_item->index);
if (cursor_item_obj != NULL)
atk_object_notify_state_change (cursor_item_obj, ATK_STATE_FOCUSED, FALSE);
}
}
icon_view->priv->cursor_item = item;
if (cursor_cell >= 0)
icon_view->priv->cursor_cell = cursor_cell;
gtk_icon_view_queue_draw_item (icon_view, item);
/* Notify that accessible focus object has changed */
item_obj = atk_object_ref_accessible_child (obj, item->index);
if (item_obj != NULL)
{
atk_focus_tracker_notify (item_obj);
atk_object_notify_state_change (item_obj, ATK_STATE_FOCUSED, TRUE);
g_object_unref (item_obj);
}
}
static GtkIconViewItem *
gtk_icon_view_item_new (void)
{
GtkIconViewItem *item;
item = g_new0 (GtkIconViewItem, 1);
item->width = -1;
item->height = -1;
return item;
}
static void
gtk_icon_view_item_free (GtkIconViewItem *item)
{
g_return_if_fail (item != NULL);
g_free (item->before);
g_free (item->after);
g_free (item->box);
g_free (item);
}
static GtkIconViewItem *
gtk_icon_view_get_item_at_coords (GtkIconView *icon_view,
gint x,
gint y,
gboolean only_in_cell,
GtkIconViewCellInfo **cell_at_pos)
{
GList *items, *l;
GdkRectangle box;
if (cell_at_pos)
*cell_at_pos = NULL;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
if (x >= item->x - icon_view->priv->column_spacing/2 && x <= item->x + item->width + icon_view->priv->column_spacing/2 &&
y >= item->y - icon_view->priv->row_spacing/2 && y <= item->y + item->height + icon_view->priv->row_spacing/2)
{
if (only_in_cell || cell_at_pos)
{
gtk_icon_view_set_cell_data (icon_view, item);
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
gtk_icon_view_get_cell_box (icon_view, item, info, &box);
if ((x >= box.x && x <= box.x + box.width &&
y >= box.y && y <= box.y + box.height) ||
(x >= box.x &&
x <= box.x + box.width &&
y >= box.y &&
y <= box.y + box.height))
{
if (cell_at_pos)
*cell_at_pos = info;
return item;
}
}
if (only_in_cell)
return NULL;
}
return item;
}
}
return NULL;
}
static void
gtk_icon_view_select_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (item != NULL);
if (item->selected)
return;
if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
return;
else if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
gtk_icon_view_unselect_all_internal (icon_view);
item->selected = TRUE;
gtk_icon_view_item_selected_changed (icon_view, item);
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
gtk_icon_view_queue_draw_item (icon_view, item);
}
static void
gtk_icon_view_unselect_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (item != NULL);
if (!item->selected)
return;
if (icon_view->priv->selection_mode == GTK_SELECTION_NONE ||
icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
return;
item->selected = FALSE;
gtk_icon_view_item_selected_changed (icon_view, item);
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
gtk_icon_view_queue_draw_item (icon_view, item);
}
static void
verify_items (GtkIconView *icon_view)
{
GList *items;
int i = 0;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
if (item->index != i)
g_error ("List item does not match its index: "
"item index %d and list index %d\n", item->index, i);
i++;
}
}
static void
gtk_icon_view_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkIconViewItem *item;
gint index;
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (data);
gtk_icon_view_stop_editing (icon_view, TRUE);
index = gtk_tree_path_get_indices(path)[0];
item = g_list_nth_data (icon_view->priv->items, index);
gtk_icon_view_item_invalidate_size (item);
gtk_icon_view_queue_layout (icon_view);
verify_items (icon_view);
}
static void
gtk_icon_view_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
gint index;
GtkIconViewItem *item;
gboolean iters_persist;
GtkIconView *icon_view;
GList *list;
icon_view = GTK_ICON_VIEW (data);
iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
index = gtk_tree_path_get_indices(path)[0];
item = gtk_icon_view_item_new ();
if (iters_persist)
item->iter = *iter;
item->index = index;
/* FIXME: We can be more efficient here,
we can store a tail pointer and use that when
appending (which is a rather common operation)
*/
icon_view->priv->items = g_list_insert (icon_view->priv->items,
item, index);
list = g_list_nth (icon_view->priv->items, index + 1);
for (; list; list = list->next)
{
item = list->data;
item->index++;
}
verify_items (icon_view);
gtk_icon_view_queue_layout (icon_view);
}
static void
gtk_icon_view_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data)
{
gint index;
GtkIconView *icon_view;
GtkIconViewItem *item;
GList *list, *next;
gboolean emit = FALSE;
icon_view = GTK_ICON_VIEW (data);
index = gtk_tree_path_get_indices(path)[0];
list = g_list_nth (icon_view->priv->items, index);
item = list->data;
gtk_icon_view_stop_editing (icon_view, TRUE);
if (item == icon_view->priv->anchor_item)
icon_view->priv->anchor_item = NULL;
if (item == icon_view->priv->cursor_item)
icon_view->priv->cursor_item = NULL;
if (item->selected)
emit = TRUE;
gtk_icon_view_item_free (item);
for (next = list->next; next; next = next->next)
{
item = next->data;
item->index--;
}
icon_view->priv->items = g_list_delete_link (icon_view->priv->items, list);
verify_items (icon_view);
gtk_icon_view_queue_layout (icon_view);
if (emit)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
static void
gtk_icon_view_rows_reordered (GtkTreeModel *model,
GtkTreePath *parent,
GtkTreeIter *iter,
gint *new_order,
gpointer data)
{
int i;
int length;
GtkIconView *icon_view;
GList *items = NULL, *list;
GtkIconViewItem **item_array;
gint *order;
icon_view = GTK_ICON_VIEW (data);
gtk_icon_view_stop_editing (icon_view, TRUE);
length = gtk_tree_model_iter_n_children (model, NULL);
order = g_new (gint, length);
for (i = 0; i < length; i++)
order [new_order[i]] = i;
item_array = g_new (GtkIconViewItem *, length);
for (i = 0, list = icon_view->priv->items; list != NULL; list = list->next, i++)
item_array[order[i]] = list->data;
g_free (order);
for (i = length - 1; i >= 0; i--)
{
item_array[i]->index = i;
items = g_list_prepend (items, item_array[i]);
}
g_free (item_array);
g_list_free (icon_view->priv->items);
icon_view->priv->items = items;
gtk_icon_view_queue_layout (icon_view);
verify_items (icon_view);
}
static void
gtk_icon_view_build_items (GtkIconView *icon_view)
{
GtkTreeIter iter;
int i;
gboolean iters_persist;
GList *items = NULL;
iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
if (!gtk_tree_model_get_iter_first (icon_view->priv->model,
&iter))
return;
i = 0;
do
{
GtkIconViewItem *item = gtk_icon_view_item_new ();
if (iters_persist)
item->iter = iter;
item->index = i;
i++;
items = g_list_prepend (items, item);
} while (gtk_tree_model_iter_next (icon_view->priv->model, &iter));
icon_view->priv->items = g_list_reverse (items);
}
static void
gtk_icon_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
GtkMovementStep step,
gint count)
{
gtk_binding_entry_add_signal (binding_set, keyval, modmask,
I_("move-cursor"), 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
return;
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
}
static gboolean
gtk_icon_view_real_move_cursor (GtkIconView *icon_view,
GtkMovementStep step,
gint count)
{
GdkModifierType state;
g_return_val_if_fail (GTK_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
step == GTK_MOVEMENT_VISUAL_POSITIONS ||
step == GTK_MOVEMENT_DISPLAY_LINES ||
step == GTK_MOVEMENT_PAGES ||
step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
return FALSE;
gtk_icon_view_stop_editing (icon_view, FALSE);
gtk_widget_grab_focus (GTK_WIDGET (icon_view));
if (gtk_get_current_event_state (&state))
{
if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
icon_view->priv->ctrl_pressed = TRUE;
if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
icon_view->priv->shift_pressed = TRUE;
}
/* else we assume not pressed */
switch (step)
{
case GTK_MOVEMENT_LOGICAL_POSITIONS:
case GTK_MOVEMENT_VISUAL_POSITIONS:
gtk_icon_view_move_cursor_left_right (icon_view, count);
break;
case GTK_MOVEMENT_DISPLAY_LINES:
gtk_icon_view_move_cursor_up_down (icon_view, count);
break;
case GTK_MOVEMENT_PAGES:
gtk_icon_view_move_cursor_page_up_down (icon_view, count);
break;
case GTK_MOVEMENT_BUFFER_ENDS:
gtk_icon_view_move_cursor_start_end (icon_view, count);
break;
default:
g_assert_not_reached ();
}
icon_view->priv->ctrl_pressed = FALSE;
icon_view->priv->shift_pressed = FALSE;
icon_view->priv->draw_focus = TRUE;
return TRUE;
}
static GtkIconViewItem *
find_item (GtkIconView *icon_view,
GtkIconViewItem *current,
gint row_ofs,
gint col_ofs)
{
gint row, col;
GList *items;
GtkIconViewItem *item;
/* FIXME: this could be more efficient
*/
row = current->row + row_ofs;
col = current->col + col_ofs;
for (items = icon_view->priv->items; items; items = items->next)
{
item = items->data;
if (item->row == row && item->col == col)
return item;
}
return NULL;
}
static gint
find_cell (GtkIconView *icon_view,
GtkIconViewItem *item,
gint cell,
GtkOrientation orientation,
gint step,
gint *count)
{
gint n_focusable;
gint *focusable;
gint current;
gint i, k;
GList *l;
if (icon_view->priv->item_orientation != orientation)
return cell;
gtk_icon_view_set_cell_data (icon_view, item);
focusable = g_new0 (gint, icon_view->priv->n_cells);
n_focusable = 0;
current = 0;
for (k = 0; k < 2; k++)
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
GtkCellRendererMode mode;
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
continue;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
g_object_get (info->cell, "mode", &mode, NULL);
if (mode != GTK_CELL_RENDERER_MODE_INERT)
{
if (cell == i)
current = n_focusable;
focusable[n_focusable] = i;
n_focusable++;
}
}
if (n_focusable == 0)
{
g_free (focusable);
return -1;
}
if (cell < 0)
{
current = step > 0 ? 0 : n_focusable - 1;
cell = focusable[current];
}
if (current + *count < 0)
{
cell = -1;
*count = current + *count;
}
else if (current + *count > n_focusable - 1)
{
cell = -1;
*count = current + *count - (n_focusable - 1);
}
else
{
cell = focusable[current + *count];
*count = 0;
}
g_free (focusable);
return cell;
}
static GtkIconViewItem *
find_item_page_up_down (GtkIconView *icon_view,
GtkIconViewItem *current,
gint count)
{
GList *item, *next;
gint y, col;
col = current->col;
y = current->y + count * icon_view->priv->vadjustment->page_size;
item = g_list_find (icon_view->priv->items, current);
if (count > 0)
{
while (item)
{
for (next = item->next; next; next = next->next)
{
if (((GtkIconViewItem *)next->data)->col == col)
break;
}
if (!next || ((GtkIconViewItem *)next->data)->y > y)
break;
item = next;
}
}
else
{
while (item)
{
for (next = item->prev; next; next = next->prev)
{
if (((GtkIconViewItem *)next->data)->col == col)
break;
}
if (!next || ((GtkIconViewItem *)next->data)->y < y)
break;
item = next;
}
}
if (item)
return item->data;
return NULL;
}
static gboolean
gtk_icon_view_select_all_between (GtkIconView *icon_view,
GtkIconViewItem *anchor,
GtkIconViewItem *cursor)
{
GList *items;
GtkIconViewItem *item;
gint row1, row2, col1, col2;
gboolean dirty = FALSE;
if (anchor->row < cursor->row)
{
row1 = anchor->row;
row2 = cursor->row;
}
else
{
row1 = cursor->row;
row2 = anchor->row;
}
if (anchor->col < cursor->col)
{
col1 = anchor->col;
col2 = cursor->col;
}
else
{
col1 = cursor->col;
col2 = anchor->col;
}
for (items = icon_view->priv->items; items; items = items->next)
{
item = items->data;
if (row1 <= item->row && item->row <= row2 &&
col1 <= item->col && item->col <= col2)
{
if (!item->selected)
{
dirty = TRUE;
item->selected = TRUE;
gtk_icon_view_item_selected_changed (icon_view, item);
}
gtk_icon_view_queue_draw_item (icon_view, item);
}
}
return dirty;
}
static void
gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view,
gint count)
{
GtkIconViewItem *item;
gint cell;
gboolean dirty = FALSE;
gint step;
GtkDirectionType direction;
if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
return;
direction = count < 0 ? GTK_DIR_UP : GTK_DIR_DOWN;
if (!icon_view->priv->cursor_item)
{
GList *list;
if (count > 0)
list = icon_view->priv->items;
else
list = g_list_last (icon_view->priv->items);
item = list ? list->data : NULL;
cell = -1;
}
else
{
item = icon_view->priv->cursor_item;
cell = icon_view->priv->cursor_cell;
step = count > 0 ? 1 : -1;
while (item)
{
cell = find_cell (icon_view, item, cell,
GTK_ORIENTATION_VERTICAL,
step, &count);
if (count == 0)
break;
item = find_item (icon_view, item, step, 0);
count = count - step;
}
}
if (!item)
{
if (!gtk_widget_keynav_failed (GTK_WIDGET (icon_view), direction))
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (icon_view));
if (toplevel)
gtk_widget_child_focus (toplevel,
direction == GTK_DIR_UP ?
GTK_DIR_TAB_BACKWARD :
GTK_DIR_TAB_FORWARD);
}
return;
}
if (icon_view->priv->ctrl_pressed ||
!icon_view->priv->shift_pressed ||
!icon_view->priv->anchor_item ||
icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
icon_view->priv->anchor_item = item;
gtk_icon_view_set_cursor_item (icon_view, item, cell);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
dirty = gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item) || dirty;
}
gtk_icon_view_scroll_to_item (icon_view, item);
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
static void
gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view,
gint count)
{
GtkIconViewItem *item;
gboolean dirty = FALSE;
if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
return;
if (!icon_view->priv->cursor_item)
{
GList *list;
if (count > 0)
list = icon_view->priv->items;
else
list = g_list_last (icon_view->priv->items);
item = list ? list->data : NULL;
}
else
item = find_item_page_up_down (icon_view,
icon_view->priv->cursor_item,
count);
if (item == icon_view->priv->cursor_item)
gtk_widget_error_bell (GTK_WIDGET (icon_view));
if (!item)
return;
if (icon_view->priv->ctrl_pressed ||
!icon_view->priv->shift_pressed ||
!icon_view->priv->anchor_item ||
icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
icon_view->priv->anchor_item = item;
gtk_icon_view_set_cursor_item (icon_view, item, -1);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
dirty = gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item) || dirty;
}
gtk_icon_view_scroll_to_item (icon_view, item);
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
static void
gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view,
gint count)
{
GtkIconViewItem *item;
gint cell = -1;
gboolean dirty = FALSE;
gint step;
GtkDirectionType direction;
if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
return;
direction = count < 0 ? GTK_DIR_LEFT : GTK_DIR_RIGHT;
if (!icon_view->priv->cursor_item)
{
GList *list;
if (count > 0)
list = icon_view->priv->items;
else
list = g_list_last (icon_view->priv->items);
item = list ? list->data : NULL;
}
else
{
item = icon_view->priv->cursor_item;
cell = icon_view->priv->cursor_cell;
step = count > 0 ? 1 : -1;
while (item)
{
cell = find_cell (icon_view, item, cell,
GTK_ORIENTATION_HORIZONTAL,
step, &count);
if (count == 0)
break;
item = find_item (icon_view, item, 0, step);
count = count - step;
}
}
if (!item)
{
if (!gtk_widget_keynav_failed (GTK_WIDGET (icon_view), direction))
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (icon_view));
if (toplevel)
gtk_widget_child_focus (toplevel,
direction == GTK_DIR_LEFT ?
GTK_DIR_TAB_BACKWARD :
GTK_DIR_TAB_FORWARD);
}
return;
}
if (icon_view->priv->ctrl_pressed ||
!icon_view->priv->shift_pressed ||
!icon_view->priv->anchor_item ||
icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
icon_view->priv->anchor_item = item;
gtk_icon_view_set_cursor_item (icon_view, item, cell);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
dirty = gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item) || dirty;
}
gtk_icon_view_scroll_to_item (icon_view, item);
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
static void
gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view,
gint count)
{
GtkIconViewItem *item;
GList *list;
gboolean dirty = FALSE;
if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
return;
if (count < 0)
list = icon_view->priv->items;
else
list = g_list_last (icon_view->priv->items);
item = list ? list->data : NULL;
if (item == icon_view->priv->cursor_item)
gtk_widget_error_bell (GTK_WIDGET (icon_view));
if (!item)
return;
if (icon_view->priv->ctrl_pressed ||
!icon_view->priv->shift_pressed ||
!icon_view->priv->anchor_item ||
icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
icon_view->priv->anchor_item = item;
gtk_icon_view_set_cursor_item (icon_view, item, -1);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
dirty = gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item) || dirty;
}
gtk_icon_view_scroll_to_item (icon_view, item);
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
/**
* gtk_icon_view_scroll_to_path:
* @icon_view: A #GtkIconView.
* @path: The path of the item to move to.
* @use_align: whether to use alignment arguments, or %FALSE.
* @row_align: The vertical alignment of the item specified by @path.
* @col_align: The horizontal alignment of the item specified by @path.
*
* Moves the alignments of @icon_view to the position specified by @path.
* @row_align determines where the row is placed, and @col_align determines
* where @column is placed. Both are expected to be between 0.0 and 1.0.
* 0.0 means left/top alignment, 1.0 means right/bottom alignment, 0.5 means
* center.
*
* If @use_align is %FALSE, then the alignment arguments are ignored, and the
* tree does the minimum amount of work to scroll the item onto the screen.
* This means that the item will be scrolled to the edge closest to its current
* position. If the item is currently visible on the screen, nothing is done.
*
* This function only works if the model is set, and @path is a valid row on
* the model. If the model changes before the @icon_view is realized, the
* centered path will be modified to reflect this change.
*
* Since: 2.8
**/
void
gtk_icon_view_scroll_to_path (GtkIconView *icon_view,
GtkTreePath *path,
gboolean use_align,
gfloat row_align,
gfloat col_align)
{
GtkIconViewItem *item = NULL;
GtkWidget *widget;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (path != NULL);
g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
widget = GTK_WIDGET (icon_view);
if (gtk_tree_path_get_depth (path) > 0)
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item || item->width < 0 ||
!gtk_widget_get_realized (widget))
{
if (icon_view->priv->scroll_to_path)
gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
icon_view->priv->scroll_to_path = NULL;
if (path)
icon_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path);
icon_view->priv->scroll_to_use_align = use_align;
icon_view->priv->scroll_to_row_align = row_align;
icon_view->priv->scroll_to_col_align = col_align;
return;
}
if (use_align)
{
GtkAllocation allocation;
gint x, y;
gint focus_width;
gfloat offset;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
NULL);
gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
gtk_widget_get_allocation (widget, &allocation);
offset = y + item->y - focus_width - row_align * (allocation.height - item->height);
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value + offset);
offset = x + item->x - focus_width - col_align * (allocation.width - item->width);
gtk_adjustment_set_value (icon_view->priv->hadjustment,
icon_view->priv->hadjustment->value + offset);
gtk_adjustment_changed (icon_view->priv->hadjustment);
gtk_adjustment_changed (icon_view->priv->vadjustment);
}
else
gtk_icon_view_scroll_to_item (icon_view, item);
}
static void
gtk_icon_view_scroll_to_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (icon_view);
gint x, y, width, height;
gint focus_width;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
NULL);
gdk_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window),
&width, &height);
gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
gtk_widget_get_allocation (widget, &allocation);
if (y + item->y - focus_width < 0)
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value + y + item->y - focus_width);
else if (y + item->y + item->height + focus_width > allocation.height)
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value + y + item->y + item->height
+ focus_width - allocation.height);
if (x + item->x - focus_width < 0)
gtk_adjustment_set_value (icon_view->priv->hadjustment,
icon_view->priv->hadjustment->value + x + item->x - focus_width);
else if (x + item->x + item->width + focus_width > allocation.width)
gtk_adjustment_set_value (icon_view->priv->hadjustment,
icon_view->priv->hadjustment->value + x + item->x + item->width
+ focus_width - allocation.width);
gtk_adjustment_changed (icon_view->priv->hadjustment);
gtk_adjustment_changed (icon_view->priv->vadjustment);
}
/* GtkCellLayout implementation */
static GtkIconViewCellInfo *
gtk_icon_view_get_cell_info (GtkIconView *icon_view,
GtkCellRenderer *renderer)
{
GList *i;
for (i = icon_view->priv->cell_list; i; i = i->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)i->data;
if (info->cell == renderer)
return info;
}
return NULL;
}
static void
gtk_icon_view_set_cell_data (GtkIconView *icon_view,
GtkIconViewItem *item)
{
GList *i;
gboolean iters_persist;
GtkTreeIter iter;
iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
if (!iters_persist)
{
GtkTreePath *path;
path = gtk_tree_path_new_from_indices (item->index, -1);
if (!gtk_tree_model_get_iter (icon_view->priv->model, &iter, path))
return;
gtk_tree_path_free (path);
}
else
iter = item->iter;
for (i = icon_view->priv->cell_list; i; i = i->next)
{
GSList *j;
GtkIconViewCellInfo *info = i->data;
g_object_freeze_notify (G_OBJECT (info->cell));
for (j = info->attributes; j && j->next; j = j->next->next)
{
gchar *property = j->data;
gint column = GPOINTER_TO_INT (j->next->data);
GValue value = {0, };
gtk_tree_model_get_value (icon_view->priv->model, &iter,
column, &value);
g_object_set_property (G_OBJECT (info->cell),
property, &value);
g_value_unset (&value);
}
if (info->func)
(* info->func) (GTK_CELL_LAYOUT (icon_view),
info->cell,
icon_view->priv->model,
&iter,
info->func_data);
g_object_thaw_notify (G_OBJECT (info->cell));
}
}
static void
free_cell_attributes (GtkIconViewCellInfo *info)
{
GSList *list;
list = info->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
info->attributes = NULL;
}
static void
free_cell_info (GtkIconViewCellInfo *info)
{
free_cell_attributes (info);
g_object_unref (info->cell);
if (info->destroy)
(* info->destroy) (info->func_data);
g_free (info);
}
static void
gtk_icon_view_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkIconViewCellInfo *info;
GtkIconView *icon_view = GTK_ICON_VIEW (layout);
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer));
g_object_ref_sink (renderer);
info = g_new0 (GtkIconViewCellInfo, 1);
info->cell = renderer;
info->expand = expand ? TRUE : FALSE;
info->pack = GTK_PACK_START;
info->position = icon_view->priv->n_cells;
icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
icon_view->priv->n_cells++;
}
static void
gtk_icon_view_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkIconViewCellInfo *info;
GtkIconView *icon_view = GTK_ICON_VIEW (layout);
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer));
g_object_ref_sink (renderer);
info = g_new0 (GtkIconViewCellInfo, 1);
info->cell = renderer;
info->expand = expand ? TRUE : FALSE;
info->pack = GTK_PACK_END;
info->position = icon_view->priv->n_cells;
icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
icon_view->priv->n_cells++;
}
static void
gtk_icon_view_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *renderer,
const gchar *attribute,
gint column)
{
GtkIconViewCellInfo *info;
GtkIconView *icon_view = GTK_ICON_VIEW (layout);
info = gtk_icon_view_get_cell_info (icon_view, renderer);
g_return_if_fail (info != NULL);
info->attributes = g_slist_prepend (info->attributes,
GINT_TO_POINTER (column));
info->attributes = g_slist_prepend (info->attributes,
g_strdup (attribute));
}
static void
gtk_icon_view_cell_layout_clear (GtkCellLayout *layout)
{
GtkIconView *icon_view = GTK_ICON_VIEW (layout);
while (icon_view->priv->cell_list)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)icon_view->priv->cell_list->data;
free_cell_info (info);
icon_view->priv->cell_list = g_list_delete_link (icon_view->priv->cell_list,
icon_view->priv->cell_list);
}
icon_view->priv->n_cells = 0;
}
static void
gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkIconViewCellInfo *info;
GtkIconView *icon_view = GTK_ICON_VIEW (layout);
info = gtk_icon_view_get_cell_info (icon_view, cell);
g_return_if_fail (info != NULL);
if (info->destroy)
{
GDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
info->func = func;
info->func_data = func_data;
info->destroy = destroy;
}
static void
gtk_icon_view_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *renderer)
{
GtkIconViewCellInfo *info;
info = gtk_icon_view_get_cell_info (GTK_ICON_VIEW (layout), renderer);
if (info != NULL)
free_cell_attributes (info);
}
static void
gtk_icon_view_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position)
{
GtkIconView *icon_view;
GList *link, *l;
GtkIconViewCellInfo *info;
gint i;
icon_view = GTK_ICON_VIEW (layout);
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
info = gtk_icon_view_get_cell_info (icon_view, cell);
g_return_if_fail (info != NULL);
g_return_if_fail (position >= 0);
link = g_list_find (icon_view->priv->cell_list, info);
g_return_if_fail (link != NULL);
icon_view->priv->cell_list = g_list_delete_link (icon_view->priv->cell_list,
link);
icon_view->priv->cell_list = g_list_insert (icon_view->priv->cell_list,
info, position);
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
info = l->data;
info->position = i;
}
gtk_widget_queue_draw (GTK_WIDGET (icon_view));
}
static GList *
gtk_icon_view_cell_layout_get_cells (GtkCellLayout *layout)
{
GtkIconView *icon_view = (GtkIconView *)layout;
GList *retval = NULL, *l;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
retval = g_list_prepend (retval, info->cell);
}
return g_list_reverse (retval);
}
/* Public API */
/**
* gtk_icon_view_new:
*
* Creates a new #GtkIconView widget
*
* Return value: A newly created #GtkIconView widget
*
* Since: 2.6
**/
GtkWidget *
gtk_icon_view_new (void)
{
return g_object_new (GTK_TYPE_ICON_VIEW, NULL);
}
/**
* gtk_icon_view_new_with_model:
* @model: The model.
*
* Creates a new #GtkIconView widget with the model @model.
*
* Return value: A newly created #GtkIconView widget.
*
* Since: 2.6
**/
GtkWidget *
gtk_icon_view_new_with_model (GtkTreeModel *model)
{
return g_object_new (GTK_TYPE_ICON_VIEW, "model", model, NULL);
}
/**
* gtk_icon_view_convert_widget_to_bin_window_coords:
* @icon_view: a #GtkIconView
* @wx: X coordinate relative to the widget
* @wy: Y coordinate relative to the widget
* @bx: return location for bin_window X coordinate
* @by: return location for bin_window Y coordinate
*
* Converts widget coordinates to coordinates for the bin_window,
* as expected by e.g. gtk_icon_view_get_path_at_pos().
*
* Since: 2.12
*/
void
gtk_icon_view_convert_widget_to_bin_window_coords (GtkIconView *icon_view,
gint wx,
gint wy,
gint *bx,
gint *by)
{
gint x, y;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->bin_window)
gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
else
x = y = 0;
if (bx)
*bx = wx - x;
if (by)
*by = wy - y;
}
/**
* gtk_icon_view_get_path_at_pos:
* @icon_view: A #GtkIconView.
* @x: The x position to be identified
* @y: The y position to be identified
*
* Finds the path at the point (@x, @y), relative to bin_window coordinates.
* See gtk_icon_view_get_item_at_pos(), if you are also interested in
* the cell at the specified position.
* See gtk_icon_view_convert_widget_to_bin_window_coords() for converting
* widget coordinates to bin_window coordinates.
*
* Return value: The #GtkTreePath corresponding to the icon or %NULL
* if no icon exists at that position.
*
* Since: 2.6
**/
GtkTreePath *
gtk_icon_view_get_path_at_pos (GtkIconView *icon_view,
gint x,
gint y)
{
GtkIconViewItem *item;
GtkTreePath *path;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, NULL);
if (!item)
return NULL;
path = gtk_tree_path_new_from_indices (item->index, -1);
return path;
}
/**
* gtk_icon_view_get_item_at_pos:
* @icon_view: A #GtkIconView.
* @x: The x position to be identified
* @y: The y position to be identified
* @path: (allow-none): Return location for the path, or %NULL
* @cell: Return location for the renderer responsible for the cell
* at (@x, @y), or %NULL
*
* Finds the path at the point (@x, @y), relative to bin_window coordinates.
* In contrast to gtk_icon_view_get_path_at_pos(), this function also
* obtains the cell at the specified position. The returned path should
* be freed with gtk_tree_path_free().
* See gtk_icon_view_convert_widget_to_bin_window_coords() for converting
* widget coordinates to bin_window coordinates.
*
* Return value: %TRUE if an item exists at the specified position
*
* Since: 2.8
**/
gboolean
gtk_icon_view_get_item_at_pos (GtkIconView *icon_view,
gint x,
gint y,
GtkTreePath **path,
GtkCellRenderer **cell)
{
GtkIconViewItem *item;
GtkIconViewCellInfo *info;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, &info);
if (path != NULL)
{
if (item != NULL)
*path = gtk_tree_path_new_from_indices (item->index, -1);
else
*path = NULL;
}
if (cell != NULL)
{
if (info != NULL)
*cell = info->cell;
else
*cell = NULL;
}
return (item != NULL);
}
/**
* gtk_icon_view_set_tooltip_item:
* @icon_view: a #GtkIconView
* @tooltip: a #GtkTooltip
* @path: a #GtkTreePath
*
* Sets the tip area of @tooltip to be the area covered by the item at @path.
* See also gtk_icon_view_set_tooltip_column() for a simpler alternative.
* See also gtk_tooltip_set_tip_area().
*
* Since: 2.12
*/
void
gtk_icon_view_set_tooltip_item (GtkIconView *icon_view,
GtkTooltip *tooltip,
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
gtk_icon_view_set_tooltip_cell (icon_view, tooltip, path, NULL);
}
/**
* gtk_icon_view_set_tooltip_cell:
* @icon_view: a #GtkIconView
* @tooltip: a #GtkTooltip
* @path: a #GtkTreePath
* @cell: (allow-none): a #GtkCellRenderer or %NULL
*
* Sets the tip area of @tooltip to the area which @cell occupies in
* the item pointed to by @path. See also gtk_tooltip_set_tip_area().
*
* See also gtk_icon_view_set_tooltip_column() for a simpler alternative.
*
* Since: 2.12
*/
void
gtk_icon_view_set_tooltip_cell (GtkIconView *icon_view,
GtkTooltip *tooltip,
GtkTreePath *path,
GtkCellRenderer *cell)
{
GdkRectangle rect;
GtkIconViewItem *item = NULL;
GtkIconViewCellInfo *info = NULL;
gint x, y;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
if (gtk_tree_path_get_depth (path) > 0)
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return;
if (cell)
{
info = gtk_icon_view_get_cell_info (icon_view, cell);
gtk_icon_view_get_cell_area (icon_view, item, info, &rect);
}
else
{
rect.x = item->x;
rect.y = item->y;
rect.width = item->width;
rect.height = item->height;
}
if (icon_view->priv->bin_window)
{
gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
rect.x += x;
rect.y += y;
}
gtk_tooltip_set_tip_area (tooltip, &rect);
}
/**
* gtk_icon_view_get_tooltip_context:
* @icon_view: an #GtkIconView
* @x: the x coordinate (relative to widget coordinates)
* @y: the y coordinate (relative to widget coordinates)
* @keyboard_tip: whether this is a keyboard tooltip or not
* @model: (out) (allow-none): a pointer to receive a #GtkTreeModel or %NULL
* @path: (out) (allow-none): a pointer to receive a #GtkTreePath or %NULL
* @iter: (out) (allow-none): a pointer to receive a #GtkTreeIter or %NULL
*
* This function is supposed to be used in a #GtkWidget::query-tooltip
* signal handler for #GtkIconView. The @x, @y and @keyboard_tip values
* which are received in the signal handler, should be passed to this
* function without modification.
*
* The return value indicates whether there is an icon view item at the given
* coordinates (%TRUE) or not (%FALSE) for mouse tooltips. For keyboard
* tooltips the item returned will be the cursor item. When %TRUE, then any of
* @model, @path and @iter which have been provided will be set to point to
* that row and the corresponding model. @x and @y will always be converted
* to be relative to @icon_view's bin_window if @keyboard_tooltip is %FALSE.
*
* Return value: whether or not the given tooltip context points to a item
*
* Since: 2.12
*/
gboolean
gtk_icon_view_get_tooltip_context (GtkIconView *icon_view,
gint *x,
gint *y,
gboolean keyboard_tip,
GtkTreeModel **model,
GtkTreePath **path,
GtkTreeIter *iter)
{
GtkTreePath *tmppath = NULL;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (x != NULL, FALSE);
g_return_val_if_fail (y != NULL, FALSE);
if (keyboard_tip)
{
gtk_icon_view_get_cursor (icon_view, &tmppath, NULL);
if (!tmppath)
return FALSE;
}
else
{
gtk_icon_view_convert_widget_to_bin_window_coords (icon_view, *x, *y,
x, y);
if (!gtk_icon_view_get_item_at_pos (icon_view, *x, *y, &tmppath, NULL))
return FALSE;
}
if (model)
*model = gtk_icon_view_get_model (icon_view);
if (iter)
gtk_tree_model_get_iter (gtk_icon_view_get_model (icon_view),
iter, tmppath);
if (path)
*path = tmppath;
else
gtk_tree_path_free (tmppath);
return TRUE;
}
static gboolean
gtk_icon_view_set_tooltip_query_cb (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
gpointer data)
{
gchar *str;
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeModel *model;
GtkIconView *icon_view = GTK_ICON_VIEW (widget);
if (!gtk_icon_view_get_tooltip_context (GTK_ICON_VIEW (widget),
&x, &y,
keyboard_tip,
&model, &path, &iter))
return FALSE;
gtk_tree_model_get (model, &iter, icon_view->priv->tooltip_column, &str, -1);
if (!str)
{
gtk_tree_path_free (path);
return FALSE;
}
gtk_tooltip_set_markup (tooltip, str);
gtk_icon_view_set_tooltip_item (icon_view, tooltip, path);
gtk_tree_path_free (path);
g_free (str);
return TRUE;
}
/**
* gtk_icon_view_set_tooltip_column:
* @icon_view: a #GtkIconView
* @column: an integer, which is a valid column number for @icon_view's model
*
* If you only plan to have simple (text-only) tooltips on full items, you
* can use this function to have #GtkIconView handle these automatically
* for you. @column should be set to the column in @icon_view's model
* containing the tooltip texts, or -1 to disable this feature.
*
* When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
* @icon_view will connect a #GtkWidget::query-tooltip signal handler.
*
* Since: 2.12
*/
void
gtk_icon_view_set_tooltip_column (GtkIconView *icon_view,
gint column)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (column == icon_view->priv->tooltip_column)
return;
if (column == -1)
{
g_signal_handlers_disconnect_by_func (icon_view,
gtk_icon_view_set_tooltip_query_cb,
NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (icon_view), FALSE);
}
else
{
if (icon_view->priv->tooltip_column == -1)
{
g_signal_connect (icon_view, "query-tooltip",
G_CALLBACK (gtk_icon_view_set_tooltip_query_cb), NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (icon_view), TRUE);
}
}
icon_view->priv->tooltip_column = column;
g_object_notify (G_OBJECT (icon_view), "tooltip-column");
}
/**
* gtk_icon_view_get_tooltip_column:
* @icon_view: a #GtkIconView
*
* Returns the column of @icon_view's model which is being used for
* displaying tooltips on @icon_view's rows.
*
* Return value: the index of the tooltip column that is currently being
* used, or -1 if this is disabled.
*
* Since: 2.12
*/
gint
gtk_icon_view_get_tooltip_column (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), 0);
return icon_view->priv->tooltip_column;
}
/**
* gtk_icon_view_get_visible_range:
* @icon_view: A #GtkIconView
* @start_path: (allow-none): Return location for start of region, or %NULL
* @end_path: (allow-none): Return location for end of region, or %NULL
*
* Sets @start_path and @end_path to be the first and last visible path.
* Note that there may be invisible paths in between.
*
* Both paths should be freed with gtk_tree_path_free() after use.
*
* Return value: %TRUE, if valid paths were placed in @start_path and @end_path
*
* Since: 2.8
**/
gboolean
gtk_icon_view_get_visible_range (GtkIconView *icon_view,
GtkTreePath **start_path,
GtkTreePath **end_path)
{
gint start_index = -1;
gint end_index = -1;
GList *icons;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
if (icon_view->priv->hadjustment == NULL ||
icon_view->priv->vadjustment == NULL)
return FALSE;
if (start_path == NULL && end_path == NULL)
return FALSE;
for (icons = icon_view->priv->items; icons; icons = icons->next)
{
GtkIconViewItem *item = icons->data;
if ((item->x + item->width >= (int)icon_view->priv->hadjustment->value) &&
(item->y + item->height >= (int)icon_view->priv->vadjustment->value) &&
(item->x <= (int) (icon_view->priv->hadjustment->value + icon_view->priv->hadjustment->page_size)) &&
(item->y <= (int) (icon_view->priv->vadjustment->value + icon_view->priv->vadjustment->page_size)))
{
if (start_index == -1)
start_index = item->index;
end_index = item->index;
}
}
if (start_path && start_index != -1)
*start_path = gtk_tree_path_new_from_indices (start_index, -1);
if (end_path && end_index != -1)
*end_path = gtk_tree_path_new_from_indices (end_index, -1);
return start_index != -1;
}
/**
* gtk_icon_view_selected_foreach:
* @icon_view: A #GtkIconView.
* @func: The function to call for each selected icon.
* @data: User data to pass to the function.
*
* Calls a function for each selected icon. Note that the model or
* selection cannot be modified from within this function.
*
* Since: 2.6
**/
void
gtk_icon_view_selected_foreach (GtkIconView *icon_view,
GtkIconViewForeachFunc func,
gpointer data)
{
GList *list;
for (list = icon_view->priv->items; list; list = list->next)
{
GtkIconViewItem *item = list->data;
GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
if (item->selected)
(* func) (icon_view, path, data);
gtk_tree_path_free (path);
}
}
/**
* gtk_icon_view_set_selection_mode:
* @icon_view: A #GtkIconView.
* @mode: The selection mode
*
* Sets the selection mode of the @icon_view.
*
* Since: 2.6
**/
void
gtk_icon_view_set_selection_mode (GtkIconView *icon_view,
GtkSelectionMode mode)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (mode == icon_view->priv->selection_mode)
return;
if (mode == GTK_SELECTION_NONE ||
icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
gtk_icon_view_unselect_all (icon_view);
icon_view->priv->selection_mode = mode;
g_object_notify (G_OBJECT (icon_view), "selection-mode");
}
/**
* gtk_icon_view_get_selection_mode:
* @icon_view: A #GtkIconView.
*
* Gets the selection mode of the @icon_view.
*
* Return value: the current selection mode
*
* Since: 2.6
**/
GtkSelectionMode
gtk_icon_view_get_selection_mode (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE);
return icon_view->priv->selection_mode;
}
/**
* gtk_icon_view_set_model:
* @icon_view: A #GtkIconView.
* @model: (allow-none): The model.
*
* Sets the model for a #GtkIconView.
* If the @icon_view already has a model set, it will remove
* it before setting the new model. If @model is %NULL, then
* it will unset the old model.
*
* Since: 2.6
**/
void
gtk_icon_view_set_model (GtkIconView *icon_view,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (icon_view->priv->model == model)
return;
if (icon_view->priv->scroll_to_path)
{
gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
icon_view->priv->scroll_to_path = NULL;
}
gtk_icon_view_stop_editing (icon_view, TRUE);
if (model)
{
GType column_type;
g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY);
if (icon_view->priv->pixbuf_column != -1)
{
column_type = gtk_tree_model_get_column_type (model,
icon_view->priv->pixbuf_column);
g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
}
if (icon_view->priv->text_column != -1)
{
column_type = gtk_tree_model_get_column_type (model,
icon_view->priv->text_column);
g_return_if_fail (column_type == G_TYPE_STRING);
}
if (icon_view->priv->markup_column != -1)
{
column_type = gtk_tree_model_get_column_type (model,
icon_view->priv->markup_column);
g_return_if_fail (column_type == G_TYPE_STRING);
}
}
if (icon_view->priv->model)
{
g_signal_handlers_disconnect_by_func (icon_view->priv->model,
gtk_icon_view_row_changed,
icon_view);
g_signal_handlers_disconnect_by_func (icon_view->priv->model,
gtk_icon_view_row_inserted,
icon_view);
g_signal_handlers_disconnect_by_func (icon_view->priv->model,
gtk_icon_view_row_deleted,
icon_view);
g_signal_handlers_disconnect_by_func (icon_view->priv->model,
gtk_icon_view_rows_reordered,
icon_view);
g_object_unref (icon_view->priv->model);
g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_free, NULL);
g_list_free (icon_view->priv->items);
icon_view->priv->items = NULL;
icon_view->priv->anchor_item = NULL;
icon_view->priv->cursor_item = NULL;
icon_view->priv->last_single_clicked = NULL;
icon_view->priv->width = 0;
icon_view->priv->height = 0;
}
icon_view->priv->model = model;
if (icon_view->priv->model)
{
g_object_ref (icon_view->priv->model);
g_signal_connect (icon_view->priv->model,
"row-changed",
G_CALLBACK (gtk_icon_view_row_changed),
icon_view);
g_signal_connect (icon_view->priv->model,
"row-inserted",
G_CALLBACK (gtk_icon_view_row_inserted),
icon_view);
g_signal_connect (icon_view->priv->model,
"row-deleted",
G_CALLBACK (gtk_icon_view_row_deleted),
icon_view);
g_signal_connect (icon_view->priv->model,
"rows-reordered",
G_CALLBACK (gtk_icon_view_rows_reordered),
icon_view);
gtk_icon_view_build_items (icon_view);
gtk_icon_view_queue_layout (icon_view);
}
g_object_notify (G_OBJECT (icon_view), "model");
if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
gtk_widget_queue_resize (GTK_WIDGET (icon_view));
}
/**
* gtk_icon_view_get_model:
* @icon_view: a #GtkIconView
*
* Returns the model the #GtkIconView is based on. Returns %NULL if the
* model is unset.
*
* Return value: A #GtkTreeModel, or %NULL if none is currently being used.
*
* Since: 2.6
**/
GtkTreeModel *
gtk_icon_view_get_model (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
return icon_view->priv->model;
}
static void
update_text_cell (GtkIconView *icon_view)
{
GtkIconViewCellInfo *info;
GList *l;
gint i;
if (icon_view->priv->text_column == -1 &&
icon_view->priv->markup_column == -1)
{
if (icon_view->priv->text_cell != -1)
{
if (icon_view->priv->pixbuf_cell > icon_view->priv->text_cell)
icon_view->priv->pixbuf_cell--;
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->text_cell);
icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);
free_cell_info (info);
icon_view->priv->n_cells--;
icon_view->priv->text_cell = -1;
}
}
else
{
if (icon_view->priv->text_cell == -1)
{
GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
info = l->data;
if (info->cell == cell)
{
icon_view->priv->text_cell = i;
break;
}
}
}
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->text_cell);
if (icon_view->priv->markup_column != -1)
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
info->cell,
"markup", icon_view->priv->markup_column,
NULL);
else
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
info->cell,
"text", icon_view->priv->text_column,
NULL);
if (icon_view->priv->item_orientation == GTK_ORIENTATION_VERTICAL)
g_object_set (info->cell,
"alignment", PANGO_ALIGN_CENTER,
"wrap-mode", PANGO_WRAP_WORD_CHAR,
"xalign", 0.0,
"yalign", 0.0,
NULL);
else
g_object_set (info->cell,
"alignment", PANGO_ALIGN_LEFT,
"wrap-mode", PANGO_WRAP_WORD_CHAR,
"xalign", 0.0,
"yalign", 0.0,
NULL);
}
}
static void
update_pixbuf_cell (GtkIconView *icon_view)
{
GtkIconViewCellInfo *info;
GList *l;
gint i;
if (icon_view->priv->pixbuf_column == -1)
{
if (icon_view->priv->pixbuf_cell != -1)
{
if (icon_view->priv->text_cell > icon_view->priv->pixbuf_cell)
icon_view->priv->text_cell--;
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->pixbuf_cell);
icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);
free_cell_info (info);
icon_view->priv->n_cells--;
icon_view->priv->pixbuf_cell = -1;
}
}
else
{
if (icon_view->priv->pixbuf_cell == -1)
{
GtkCellRenderer *cell = gtk_cell_renderer_pixbuf_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
info = l->data;
if (info->cell == cell)
{
icon_view->priv->pixbuf_cell = i;
break;
}
}
}
info = g_list_nth_data (icon_view->priv->cell_list,
icon_view->priv->pixbuf_cell);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
info->cell,
"pixbuf", icon_view->priv->pixbuf_column,
NULL);
if (icon_view->priv->item_orientation == GTK_ORIENTATION_VERTICAL)
g_object_set (info->cell,
"xalign", 0.5,
"yalign", 1.0,
NULL);
else
g_object_set (info->cell,
"xalign", 0.0,
"yalign", 0.0,
NULL);
}
}
/**
* gtk_icon_view_set_text_column:
* @icon_view: A #GtkIconView.
* @column: A column in the currently used model, or -1 to display no text
*
* Sets the column with text for @icon_view to be @column. The text
* column must be of type #G_TYPE_STRING.
*
* Since: 2.6
**/
void
gtk_icon_view_set_text_column (GtkIconView *icon_view,
gint column)
{
if (column == icon_view->priv->text_column)
return;
if (column == -1)
icon_view->priv->text_column = -1;
else
{
if (icon_view->priv->model != NULL)
{
GType column_type;
column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
g_return_if_fail (column_type == G_TYPE_STRING);
}
icon_view->priv->text_column = column;
}
gtk_icon_view_stop_editing (icon_view, TRUE);
update_text_cell (icon_view);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "text-column");
}
/**
* gtk_icon_view_get_text_column:
* @icon_view: A #GtkIconView.
*
* Returns the column with text for @icon_view.
*
* Returns: the text column, or -1 if it's unset.
*
* Since: 2.6
*/
gint
gtk_icon_view_get_text_column (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->text_column;
}
/**
* gtk_icon_view_set_markup_column:
* @icon_view: A #GtkIconView.
* @column: A column in the currently used model, or -1 to display no text
*
* Sets the column with markup information for @icon_view to be
* @column. The markup column must be of type #G_TYPE_STRING.
* If the markup column is set to something, it overrides
* the text column set by gtk_icon_view_set_text_column().
*
* Since: 2.6
**/
void
gtk_icon_view_set_markup_column (GtkIconView *icon_view,
gint column)
{
if (column == icon_view->priv->markup_column)
return;
if (column == -1)
icon_view->priv->markup_column = -1;
else
{
if (icon_view->priv->model != NULL)
{
GType column_type;
column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
g_return_if_fail (column_type == G_TYPE_STRING);
}
icon_view->priv->markup_column = column;
}
gtk_icon_view_stop_editing (icon_view, TRUE);
update_text_cell (icon_view);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "markup-column");
}
/**
* gtk_icon_view_get_markup_column:
* @icon_view: A #GtkIconView.
*
* Returns the column with markup text for @icon_view.
*
* Returns: the markup column, or -1 if it's unset.
*
* Since: 2.6
*/
gint
gtk_icon_view_get_markup_column (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->markup_column;
}
/**
* gtk_icon_view_set_pixbuf_column:
* @icon_view: A #GtkIconView.
* @column: A column in the currently used model, or -1 to disable
*
* Sets the column with pixbufs for @icon_view to be @column. The pixbuf
* column must be of type #GDK_TYPE_PIXBUF
*
* Since: 2.6
**/
void
gtk_icon_view_set_pixbuf_column (GtkIconView *icon_view,
gint column)
{
if (column == icon_view->priv->pixbuf_column)
return;
if (column == -1)
icon_view->priv->pixbuf_column = -1;
else
{
if (icon_view->priv->model != NULL)
{
GType column_type;
column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
}
icon_view->priv->pixbuf_column = column;
}
gtk_icon_view_stop_editing (icon_view, TRUE);
update_pixbuf_cell (icon_view);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "pixbuf-column");
}
/**
* gtk_icon_view_get_pixbuf_column:
* @icon_view: A #GtkIconView.
*
* Returns the column with pixbufs for @icon_view.
*
* Returns: the pixbuf column, or -1 if it's unset.
*
* Since: 2.6
*/
gint
gtk_icon_view_get_pixbuf_column (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->pixbuf_column;
}
/**
* gtk_icon_view_select_path:
* @icon_view: A #GtkIconView.
* @path: The #GtkTreePath to be selected.
*
* Selects the row at @path.
*
* Since: 2.6
**/
void
gtk_icon_view_select_path (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkIconViewItem *item = NULL;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (icon_view->priv->model != NULL);
g_return_if_fail (path != NULL);
if (gtk_tree_path_get_depth (path) > 0)
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (item)
gtk_icon_view_select_item (icon_view, item);
}
/**
* gtk_icon_view_unselect_path:
* @icon_view: A #GtkIconView.
* @path: The #GtkTreePath to be unselected.
*
* Unselects the row at @path.
*
* Since: 2.6
**/
void
gtk_icon_view_unselect_path (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkIconViewItem *item;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (icon_view->priv->model != NULL);
g_return_if_fail (path != NULL);
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return;
gtk_icon_view_unselect_item (icon_view, item);
}
/**
* gtk_icon_view_get_selected_items:
* @icon_view: A #GtkIconView.
*
* Creates a list of paths of all selected items. Additionally, if you are
* planning on modifying the model after calling this function, you may
* want to convert the returned list into a list of #GtkTreeRowReference<!-- -->s.
* To do this, you can use gtk_tree_row_reference_new().
*
* To free the return value, use:
* |[
* g_list_foreach (list, (GFunc)gtk_tree_path_free, NULL);
* g_list_free (list);
* ]|
*
* Return value: (element-type GtkTreePath) (transfer full): A #GList containing a #GtkTreePath for each selected row.
*
* Since: 2.6
**/
GList *
gtk_icon_view_get_selected_items (GtkIconView *icon_view)
{
GList *list;
GList *selected = NULL;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
for (list = icon_view->priv->items; list != NULL; list = list->next)
{
GtkIconViewItem *item = list->data;
if (item->selected)
{
GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
selected = g_list_prepend (selected, path);
}
}
return selected;
}
/**
* gtk_icon_view_select_all:
* @icon_view: A #GtkIconView.
*
* Selects all the icons. @icon_view must has its selection mode set
* to #GTK_SELECTION_MULTIPLE.
*
* Since: 2.6
**/
void
gtk_icon_view_select_all (GtkIconView *icon_view)
{
GList *items;
gboolean dirty = FALSE;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
return;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
if (!item->selected)
{
dirty = TRUE;
item->selected = TRUE;
gtk_icon_view_queue_draw_item (icon_view, item);
}
}
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
/**
* gtk_icon_view_unselect_all:
* @icon_view: A #GtkIconView.
*
* Unselects all the icons.
*
* Since: 2.6
**/
void
gtk_icon_view_unselect_all (GtkIconView *icon_view)
{
gboolean dirty = FALSE;
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
return;
dirty = gtk_icon_view_unselect_all_internal (icon_view);
if (dirty)
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
/**
* gtk_icon_view_path_is_selected:
* @icon_view: A #GtkIconView.
* @path: A #GtkTreePath to check selection on.
*
* Returns %TRUE if the icon pointed to by @path is currently
* selected. If @path does not point to a valid location, %FALSE is returned.
*
* Return value: %TRUE if @path is selected.
*
* Since: 2.6
**/
gboolean
gtk_icon_view_path_is_selected (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkIconViewItem *item;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return FALSE;
return item->selected;
}
/**
* gtk_icon_view_get_item_row:
* @icon_view: a #GtkIconView
* @path: the #GtkTreePath of the item
*
* Gets the row in which the item @path is currently
* displayed. Row numbers start at 0.
*
* Returns: The row in which the item is displayed
*
* Since: 2.22
*/
gint
gtk_icon_view_get_item_row (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkIconViewItem *item;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return -1;
return item->row;
}
/**
* gtk_icon_view_get_item_column:
* @icon_view: a #GtkIconView
* @path: the #GtkTreePath of the item
*
* Gets the column in which the item @path is currently
* displayed. Column numbers start at 0.
*
* Returns: The column in which the item is displayed
*
* Since: 2.22
*/
gint
gtk_icon_view_get_item_column (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkIconViewItem *item;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
item = g_list_nth_data (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0]);
if (!item)
return -1;
return item->col;
}
/**
* gtk_icon_view_item_activated:
* @icon_view: A #GtkIconView
* @path: The #GtkTreePath to be activated
*
* Activates the item determined by @path.
*
* Since: 2.6
**/
void
gtk_icon_view_item_activated (GtkIconView *icon_view,
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
g_return_if_fail (path != NULL);
g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path);
}
/**
* gtk_icon_view_set_item_orientation:
* @icon_view: a #GtkIconView
* @orientation: the relative position of texts and icons
*
* Sets the ::item-orientation property which determines whether the labels
* are drawn beside the icons instead of below.
*
* Since: 2.6
**/
void
gtk_icon_view_set_item_orientation (GtkIconView *icon_view,
GtkOrientation orientation)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->item_orientation != orientation)
{
icon_view->priv->item_orientation = orientation;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
update_text_cell (icon_view);
update_pixbuf_cell (icon_view);
g_object_notify (G_OBJECT (icon_view), "item-orientation");
}
}
/**
* gtk_icon_view_get_item_orientation:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::item-orientation property which determines
* whether the labels are drawn beside the icons instead of below.
*
* Return value: the relative position of texts and icons
*
* Since: 2.6
**/
GtkOrientation
gtk_icon_view_get_item_orientation (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view),
GTK_ORIENTATION_VERTICAL);
return icon_view->priv->item_orientation;
}
/**
* gtk_icon_view_set_columns:
* @icon_view: a #GtkIconView
* @columns: the number of columns
*
* Sets the ::columns property which determines in how
* many columns the icons are arranged. If @columns is
* -1, the number of columns will be chosen automatically
* to fill the available area.
*
* Since: 2.6
*/
void
gtk_icon_view_set_columns (GtkIconView *icon_view,
gint columns)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->columns != columns)
{
icon_view->priv->columns = columns;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "columns");
}
}
/**
* gtk_icon_view_get_columns:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::columns property.
*
* Return value: the number of columns, or -1
*
* Since: 2.6
*/
gint
gtk_icon_view_get_columns (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->columns;
}
/**
* gtk_icon_view_set_item_width:
* @icon_view: a #GtkIconView
* @item_width: the width for each item
*
* Sets the ::item-width property which specifies the width
* to use for each item. If it is set to -1, the icon view will
* automatically determine a suitable item size.
*
* Since: 2.6
*/
void
gtk_icon_view_set_item_width (GtkIconView *icon_view,
gint item_width)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->item_width != item_width)
{
icon_view->priv->item_width = item_width;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
update_text_cell (icon_view);
g_object_notify (G_OBJECT (icon_view), "item-width");
}
}
/**
* gtk_icon_view_get_item_width:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::item-width property.
*
* Return value: the width of a single item, or -1
*
* Since: 2.6
*/
gint
gtk_icon_view_get_item_width (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->item_width;
}
/**
* gtk_icon_view_set_spacing:
* @icon_view: a #GtkIconView
* @spacing: the spacing
*
* Sets the ::spacing property which specifies the space
* which is inserted between the cells (i.e. the icon and
* the text) of an item.
*
* Since: 2.6
*/
void
gtk_icon_view_set_spacing (GtkIconView *icon_view,
gint spacing)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->spacing != spacing)
{
icon_view->priv->spacing = spacing;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "spacing");
}
}
/**
* gtk_icon_view_get_spacing:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::spacing property.
*
* Return value: the space between cells
*
* Since: 2.6
*/
gint
gtk_icon_view_get_spacing (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->spacing;
}
/**
* gtk_icon_view_set_row_spacing:
* @icon_view: a #GtkIconView
* @row_spacing: the row spacing
*
* Sets the ::row-spacing property which specifies the space
* which is inserted between the rows of the icon view.
*
* Since: 2.6
*/
void
gtk_icon_view_set_row_spacing (GtkIconView *icon_view,
gint row_spacing)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->row_spacing != row_spacing)
{
icon_view->priv->row_spacing = row_spacing;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "row-spacing");
}
}
/**
* gtk_icon_view_get_row_spacing:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::row-spacing property.
*
* Return value: the space between rows
*
* Since: 2.6
*/
gint
gtk_icon_view_get_row_spacing (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->row_spacing;
}
/**
* gtk_icon_view_set_column_spacing:
* @icon_view: a #GtkIconView
* @column_spacing: the column spacing
*
* Sets the ::column-spacing property which specifies the space
* which is inserted between the columns of the icon view.
*
* Since: 2.6
*/
void
gtk_icon_view_set_column_spacing (GtkIconView *icon_view,
gint column_spacing)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->column_spacing != column_spacing)
{
icon_view->priv->column_spacing = column_spacing;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "column-spacing");
}
}
/**
* gtk_icon_view_get_column_spacing:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::column-spacing property.
*
* Return value: the space between columns
*
* Since: 2.6
*/
gint
gtk_icon_view_get_column_spacing (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->column_spacing;
}
/**
* gtk_icon_view_set_margin:
* @icon_view: a #GtkIconView
* @margin: the margin
*
* Sets the ::margin property which specifies the space
* which is inserted at the top, bottom, left and right
* of the icon view.
*
* Since: 2.6
*/
void
gtk_icon_view_set_margin (GtkIconView *icon_view,
gint margin)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->margin != margin)
{
icon_view->priv->margin = margin;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "margin");
}
}
/**
* gtk_icon_view_get_margin:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::margin property.
*
* Return value: the space at the borders
*
* Since: 2.6
*/
gint
gtk_icon_view_get_margin (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->margin;
}
/**
* gtk_icon_view_set_item_padding:
* @icon_view: a #GtkIconView
* @item_padding: the item padding
*
* Sets the #GtkIconView:item-padding property which specifies the padding
* around each of the icon view's items.
*
* Since: 2.18
*/
void
gtk_icon_view_set_item_padding (GtkIconView *icon_view,
gint item_padding)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->item_padding != item_padding)
{
icon_view->priv->item_padding = item_padding;
gtk_icon_view_stop_editing (icon_view, TRUE);
gtk_icon_view_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "item-padding");
}
}
/**
* gtk_icon_view_get_item_padding:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::item-padding property.
*
* Return value: the padding around items
*
* Since: 2.18
*/
gint
gtk_icon_view_get_item_padding (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
return icon_view->priv->item_padding;
}
/* Get/set whether drag_motion requested the drag data and
* drag_data_received should thus not actually insert the data,
* since the data doesn't result from a drop.
*/
static void
set_status_pending (GdkDragContext *context,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (context),
I_("gtk-icon-view-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDragContext *context)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
"gtk-icon-view-status-pending"));
}
static void
unset_reorderable (GtkIconView *icon_view)
{
if (icon_view->priv->reorderable)
{
icon_view->priv->reorderable = FALSE;
g_object_notify (G_OBJECT (icon_view), "reorderable");
}
}
static void
set_source_row (GdkDragContext *context,
GtkTreeModel *model,
GtkTreePath *source_row)
{
if (source_row)
g_object_set_data_full (G_OBJECT (context),
I_("gtk-icon-view-source-row"),
gtk_tree_row_reference_new (model, source_row),
(GDestroyNotify) gtk_tree_row_reference_free);
else
g_object_set_data_full (G_OBJECT (context),
I_("gtk-icon-view-source-row"),
NULL, NULL);
}
static GtkTreePath*
get_source_row (GdkDragContext *context)
{
GtkTreeRowReference *ref;
ref = g_object_get_data (G_OBJECT (context), "gtk-icon-view-source-row");
if (ref)
return gtk_tree_row_reference_get_path (ref);
else
return NULL;
}
typedef struct
{
GtkTreeRowReference *dest_row;
gboolean empty_view_drop;
gboolean drop_append_mode;
} DestRow;
static void
dest_row_free (gpointer data)
{
DestRow *dr = (DestRow *)data;
gtk_tree_row_reference_free (dr->dest_row);
g_free (dr);
}
static void
set_dest_row (GdkDragContext *context,
GtkTreeModel *model,
GtkTreePath *dest_row,
gboolean empty_view_drop,
gboolean drop_append_mode)
{
DestRow *dr;
if (!dest_row)
{
g_object_set_data_full (G_OBJECT (context),
I_("gtk-icon-view-dest-row"),
NULL, NULL);
return;
}
dr = g_new0 (DestRow, 1);
dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
dr->empty_view_drop = empty_view_drop;
dr->drop_append_mode = drop_append_mode;
g_object_set_data_full (G_OBJECT (context),
I_("gtk-icon-view-dest-row"),
dr, (GDestroyNotify) dest_row_free);
}
static GtkTreePath*
get_dest_row (GdkDragContext *context)
{
DestRow *dr;
dr = g_object_get_data (G_OBJECT (context), "gtk-icon-view-dest-row");
if (dr)
{
GtkTreePath *path = NULL;
if (dr->dest_row)
path = gtk_tree_row_reference_get_path (dr->dest_row);
else if (dr->empty_view_drop)
path = gtk_tree_path_new_from_indices (0, -1);
else
path = NULL;
if (path && dr->drop_append_mode)
gtk_tree_path_next (path);
return path;
}
else
return NULL;
}
static gboolean
check_model_dnd (GtkTreeModel *model,
GType required_iface,
const gchar *signal)
{
if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
{
g_warning ("You must override the default '%s' handler "
"on GtkIconView when using models that don't support "
"the %s interface and enabling drag-and-drop. The simplest way to do this "
"is to connect to '%s' and call "
"g_signal_stop_emission_by_name() in your signal handler to prevent "
"the default handler from running. Look at the source code "
"for the default handler in gtkiconview.c to get an idea what "
"your handler should do. (gtkiconview.c is in the GTK+ source "
"code.) If you're using GTK+ from a language other than C, "
"there may be a more natural way to override default handlers, e.g. via derivation.",
signal, g_type_name (required_iface), signal);
return FALSE;
}
else
return TRUE;
}
static void
remove_scroll_timeout (GtkIconView *icon_view)
{
if (icon_view->priv->scroll_timeout_id != 0)
{
g_source_remove (icon_view->priv->scroll_timeout_id);
icon_view->priv->scroll_timeout_id = 0;
}
}
static void
gtk_icon_view_autoscroll (GtkIconView *icon_view)
{
GdkWindow *window;
gint px, py, x, y, width, height;
gint hoffset, voffset;
window = gtk_widget_get_window (GTK_WIDGET (icon_view));
gdk_window_get_pointer (window, &px, &py, NULL);
gdk_window_get_geometry (window, &x, &y, &width, &height, NULL);
/* see if we are near the edge. */
voffset = py - (y + 2 * SCROLL_EDGE_SIZE);
if (voffset > 0)
voffset = MAX (py - (y + height - 2 * SCROLL_EDGE_SIZE), 0);
hoffset = px - (x + 2 * SCROLL_EDGE_SIZE);
if (hoffset > 0)
hoffset = MAX (px - (x + width - 2 * SCROLL_EDGE_SIZE), 0);
if (voffset != 0)
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value + voffset);
if (hoffset != 0)
gtk_adjustment_set_value (icon_view->priv->hadjustment,
icon_view->priv->hadjustment->value + hoffset);
}
static gboolean
drag_scroll_timeout (gpointer data)
{
GtkIconView *icon_view = GTK_ICON_VIEW (data);
gtk_icon_view_autoscroll (icon_view);
return TRUE;
}
static gboolean
set_destination (GtkIconView *icon_view,
GdkDragContext *context,
gint x,
gint y,
GdkDragAction *suggested_action,
GdkAtom *target)
{
GtkWidget *widget;
GtkTreePath *path = NULL;
GtkIconViewDropPosition pos;
GtkIconViewDropPosition old_pos;
GtkTreePath *old_dest_path = NULL;
gboolean can_drop = FALSE;
widget = GTK_WIDGET (icon_view);
*suggested_action = 0;
*target = GDK_NONE;
if (!icon_view->priv->dest_set)
{
/* someone unset us as a drag dest, note that if
* we return FALSE drag_leave isn't called
*/
gtk_icon_view_set_drag_dest_item (icon_view,
NULL,
GTK_ICON_VIEW_DROP_LEFT);
remove_scroll_timeout (GTK_ICON_VIEW (widget));
return FALSE; /* no longer a drop site */
}
*target = gtk_drag_dest_find_target (widget, context,
gtk_drag_dest_get_target_list (widget));
if (*target == GDK_NONE)
return FALSE;
if (!gtk_icon_view_get_dest_item_at_pos (icon_view, x, y, &path, &pos))
{
gint n_children;
GtkTreeModel *model;
/* the row got dropped on empty space, let's setup a special case
*/
if (path)
gtk_tree_path_free (path);
model = gtk_icon_view_get_model (icon_view);
n_children = gtk_tree_model_iter_n_children (model, NULL);
if (n_children)
{
pos = GTK_ICON_VIEW_DROP_BELOW;
path = gtk_tree_path_new_from_indices (n_children - 1, -1);
}
else
{
pos = GTK_ICON_VIEW_DROP_ABOVE;
path = gtk_tree_path_new_from_indices (0, -1);
}
can_drop = TRUE;
goto out;
}
g_assert (path);
gtk_icon_view_get_drag_dest_item (icon_view,
&old_dest_path,
&old_pos);
if (old_dest_path)
gtk_tree_path_free (old_dest_path);
if (TRUE /* FIXME if the location droppable predicate */)
{
can_drop = TRUE;
}
out:
if (can_drop)
{
GtkWidget *source_widget;
*suggested_action = context->suggested_action;
source_widget = gtk_drag_get_source_widget (context);
if (source_widget == widget)
{
/* Default to MOVE, unless the user has
* pressed ctrl or shift to affect available actions
*/
if ((context->actions & GDK_ACTION_MOVE) != 0)
*suggested_action = GDK_ACTION_MOVE;
}
gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget),
path, pos);
}
else
{
/* can't drop here */
gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget),
NULL,
GTK_ICON_VIEW_DROP_LEFT);
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static GtkTreePath*
get_logical_destination (GtkIconView *icon_view,
gboolean *drop_append_mode)
{
/* adjust path to point to the row the drop goes in front of */
GtkTreePath *path = NULL;
GtkIconViewDropPosition pos;
*drop_append_mode = FALSE;
gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos);
if (path == NULL)
return NULL;
if (pos == GTK_ICON_VIEW_DROP_RIGHT ||
pos == GTK_ICON_VIEW_DROP_BELOW)
{
GtkTreeIter iter;
GtkTreeModel *model = icon_view->priv->model;
if (!gtk_tree_model_get_iter (model, &iter, path) ||
!gtk_tree_model_iter_next (model, &iter))
*drop_append_mode = TRUE;
else
{
*drop_append_mode = FALSE;
gtk_tree_path_next (path);
}
}
return path;
}
static gboolean
gtk_icon_view_maybe_begin_drag (GtkIconView *icon_view,
GdkEventMotion *event)
{
GtkWidget *widget = GTK_WIDGET (icon_view);
GdkDragContext *context;
GtkTreePath *path = NULL;
gint button;
GtkTreeModel *model;
gboolean retval = FALSE;
if (!icon_view->priv->source_set)
goto out;
if (icon_view->priv->pressed_button < 0)
goto out;
if (!gtk_drag_check_threshold (GTK_WIDGET (icon_view),
icon_view->priv->press_start_x,
icon_view->priv->press_start_y,
event->x, event->y))
goto out;
model = gtk_icon_view_get_model (icon_view);
if (model == NULL)
goto out;
button = icon_view->priv->pressed_button;
icon_view->priv->pressed_button = -1;
path = gtk_icon_view_get_path_at_pos (icon_view,
icon_view->priv->press_start_x,
icon_view->priv->press_start_y);
if (path == NULL)
goto out;
if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
!gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
path))
goto out;
/* FIXME Check whether we're a start button, if not return FALSE and
* free path
*/
/* Now we can begin the drag */
retval = TRUE;
context = gtk_drag_begin (widget,
gtk_drag_source_get_target_list (widget),
icon_view->priv->source_actions,
button,
(GdkEvent*)event);
set_source_row (context, model, path);
out:
if (path)
gtk_tree_path_free (path);
return retval;
}
/* Source side drag signals */
static void
gtk_icon_view_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
GtkIconView *icon_view;
GtkIconViewItem *item;
GdkPixmap *icon;
gint x, y;
GtkTreePath *path;
icon_view = GTK_ICON_VIEW (widget);
/* if the user uses a custom DnD impl, we don't set the icon here */
if (!icon_view->priv->dest_set && !icon_view->priv->source_set)
return;
item = gtk_icon_view_get_item_at_coords (icon_view,
icon_view->priv->press_start_x,
icon_view->priv->press_start_y,
TRUE,
NULL);
g_return_if_fail (item != NULL);
x = icon_view->priv->press_start_x - item->x + 1;
y = icon_view->priv->press_start_y - item->y + 1;
path = gtk_tree_path_new_from_indices (item->index, -1);
icon = gtk_icon_view_create_drag_icon (icon_view, path);
gtk_tree_path_free (path);
gtk_drag_set_icon_pixmap (context,
gdk_drawable_get_colormap (icon),
icon,
NULL,
x, y);
g_object_unref (icon);
}
static void
gtk_icon_view_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
static void
gtk_icon_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkIconView *icon_view;
GtkTreeModel *model;
GtkTreePath *source_row;
icon_view = GTK_ICON_VIEW (widget);
model = gtk_icon_view_get_model (icon_view);
if (model == NULL)
return;
if (!icon_view->priv->source_set)
return;
source_row = get_source_row (context);
if (source_row == NULL)
return;
/* We can implement the GTK_TREE_MODEL_ROW target generically for
* any model; for DragSource models there are some other targets
* we also support.
*/
if (GTK_IS_TREE_DRAG_SOURCE (model) &&
gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
source_row,
selection_data))
goto done;
/* If drag_data_get does nothing, try providing row data. */
if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
gtk_tree_set_row_drag_data (selection_data,
model,
source_row);
done:
gtk_tree_path_free (source_row);
}
static void
gtk_icon_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context)
{
GtkTreeModel *model;
GtkIconView *icon_view;
GtkTreePath *source_row;
icon_view = GTK_ICON_VIEW (widget);
model = gtk_icon_view_get_model (icon_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag-data-delete"))
return;
if (!icon_view->priv->source_set)
return;
source_row = get_source_row (context);
if (source_row == NULL)
return;
gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
source_row);
gtk_tree_path_free (source_row);
set_source_row (context, NULL, NULL);
}
/* Target side drag signals */
static void
gtk_icon_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (widget);
/* unset any highlight row */
gtk_icon_view_set_drag_dest_item (icon_view,
NULL,
GTK_ICON_VIEW_DROP_LEFT);
remove_scroll_timeout (icon_view);
}
static gboolean
gtk_icon_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkTreePath *path = NULL;
GtkIconViewDropPosition pos;
GtkIconView *icon_view;
GdkDragAction suggested_action = 0;
GdkAtom target;
gboolean empty;
icon_view = GTK_ICON_VIEW (widget);
if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
return FALSE;
gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos);
/* we only know this *after* set_desination_row */
empty = icon_view->priv->empty_view_drop;
if (path == NULL && !empty)
{
/* Can't drop here. */
gdk_drag_status (context, 0, time);
}
else
{
if (icon_view->priv->scroll_timeout_id == 0)
{
icon_view->priv->scroll_timeout_id =
gdk_threads_add_timeout (50, drag_scroll_timeout, icon_view);
}
if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
{
/* Request data so we can use the source row when
* determining whether to accept the drop
*/
set_status_pending (context, suggested_action);
gtk_drag_get_data (widget, context, target, time);
}
else
{
set_status_pending (context, 0);
gdk_drag_status (context, suggested_action, time);
}
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static gboolean
gtk_icon_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkIconView *icon_view;
GtkTreePath *path;
GdkDragAction suggested_action = 0;
GdkAtom target = GDK_NONE;
GtkTreeModel *model;
gboolean drop_append_mode;
icon_view = GTK_ICON_VIEW (widget);
model = gtk_icon_view_get_model (icon_view);
remove_scroll_timeout (GTK_ICON_VIEW (widget));
if (!icon_view->priv->dest_set)
return FALSE;
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag-drop"))
return FALSE;
if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
return FALSE;
path = get_logical_destination (icon_view, &drop_append_mode);
if (target != GDK_NONE && path != NULL)
{
/* in case a motion had requested drag data, change things so we
* treat drag data receives as a drop.
*/
set_status_pending (context, 0);
set_dest_row (context, model, path,
icon_view->priv->empty_view_drop, drop_append_mode);
}
if (path)
gtk_tree_path_free (path);
/* Unset this thing */
gtk_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT);
if (target != GDK_NONE)
{
gtk_drag_get_data (widget, context, target, time);
return TRUE;
}
else
return FALSE;
}
static void
gtk_icon_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkTreePath *path;
gboolean accepted = FALSE;
GtkTreeModel *model;
GtkIconView *icon_view;
GtkTreePath *dest_row;
GdkDragAction suggested_action;
gboolean drop_append_mode;
icon_view = GTK_ICON_VIEW (widget);
model = gtk_icon_view_get_model (icon_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag-data-received"))
return;
if (!icon_view->priv->dest_set)
return;
suggested_action = get_status_pending (context);
if (suggested_action)
{
/* We are getting this data due to a request in drag_motion,
* rather than due to a request in drag_drop, so we are just
* supposed to call drag_status, not actually paste in the
* data.
*/
path = get_logical_destination (icon_view, &drop_append_mode);
if (path == NULL)
suggested_action = 0;
if (suggested_action)
{
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
path,
selection_data))
suggested_action = 0;
}
gdk_drag_status (context, suggested_action, time);
if (path)
gtk_tree_path_free (path);
/* If you can't drop, remove user drop indicator until the next motion */
if (suggested_action == 0)
gtk_icon_view_set_drag_dest_item (icon_view,
NULL,
GTK_ICON_VIEW_DROP_LEFT);
return;
}
dest_row = get_dest_row (context);
if (dest_row == NULL)
return;
if (selection_data->length >= 0)
{
if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
dest_row,
selection_data))
accepted = TRUE;
}
gtk_drag_finish (context,
accepted,
(context->action == GDK_ACTION_MOVE),
time);
gtk_tree_path_free (dest_row);
/* drop dest_row */
set_dest_row (context, NULL, NULL, FALSE, FALSE);
}
/* Drag-and-Drop support */
/**
* gtk_icon_view_enable_model_drag_source:
* @icon_view: a #GtkIconTreeView
* @start_button_mask: Mask of allowed buttons to start drag
* @targets: the table of targets that the drag will support
* @n_targets: the number of items in @targets
* @actions: the bitmask of possible actions for a drag from this
* widget
*
* Turns @icon_view into a drag source for automatic DND. Calling this
* method sets #GtkIconView:reorderable to %FALSE.
*
* Since: 2.8
**/
void
gtk_icon_view_enable_model_drag_source (GtkIconView *icon_view,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
gtk_drag_source_set (GTK_WIDGET (icon_view), 0, targets, n_targets, actions);
icon_view->priv->start_button_mask = start_button_mask;
icon_view->priv->source_actions = actions;
icon_view->priv->source_set = TRUE;
unset_reorderable (icon_view);
}
/**
* gtk_icon_view_enable_model_drag_dest:
* @icon_view: a #GtkIconView
* @targets: the table of targets that the drag will support
* @n_targets: the number of items in @targets
* @actions: the bitmask of possible actions for a drag to this
* widget
*
* Turns @icon_view into a drop destination for automatic DND. Calling this
* method sets #GtkIconView:reorderable to %FALSE.
*
* Since: 2.8
**/
void
gtk_icon_view_enable_model_drag_dest (GtkIconView *icon_view,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
gtk_drag_dest_set (GTK_WIDGET (icon_view), 0, targets, n_targets, actions);
icon_view->priv->dest_actions = actions;
icon_view->priv->dest_set = TRUE;
unset_reorderable (icon_view);
}
/**
* gtk_icon_view_unset_model_drag_source:
* @icon_view: a #GtkIconView
*
* Undoes the effect of gtk_icon_view_enable_model_drag_source(). Calling this
* method sets #GtkIconView:reorderable to %FALSE.
*
* Since: 2.8
**/
void
gtk_icon_view_unset_model_drag_source (GtkIconView *icon_view)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->source_set)
{
gtk_drag_source_unset (GTK_WIDGET (icon_view));
icon_view->priv->source_set = FALSE;
}
unset_reorderable (icon_view);
}
/**
* gtk_icon_view_unset_model_drag_dest:
* @icon_view: a #GtkIconView
*
* Undoes the effect of gtk_icon_view_enable_model_drag_dest(). Calling this
* method sets #GtkIconView:reorderable to %FALSE.
*
* Since: 2.8
**/
void
gtk_icon_view_unset_model_drag_dest (GtkIconView *icon_view)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->dest_set)
{
gtk_drag_dest_unset (GTK_WIDGET (icon_view));
icon_view->priv->dest_set = FALSE;
}
unset_reorderable (icon_view);
}
/* These are useful to implement your own custom stuff. */
/**
* gtk_icon_view_set_drag_dest_item:
* @icon_view: a #GtkIconView
* @path: (allow-none): The path of the item to highlight, or %NULL.
* @pos: Specifies where to drop, relative to the item
*
* Sets the item that is highlighted for feedback.
*
* Since: 2.8
*/
void
gtk_icon_view_set_drag_dest_item (GtkIconView *icon_view,
GtkTreePath *path,
GtkIconViewDropPosition pos)
{
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->dest_item)
{
GtkTreePath *current_path;
current_path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
gtk_tree_row_reference_free (icon_view->priv->dest_item);
icon_view->priv->dest_item = NULL;
gtk_icon_view_queue_draw_path (icon_view, current_path);
gtk_tree_path_free (current_path);
}
/* special case a drop on an empty model */
icon_view->priv->empty_view_drop = FALSE;
if (pos == GTK_ICON_VIEW_DROP_ABOVE && path
&& gtk_tree_path_get_depth (path) == 1
&& gtk_tree_path_get_indices (path)[0] == 0)
{
gint n_children;
n_children = gtk_tree_model_iter_n_children (icon_view->priv->model,
NULL);
if (n_children == 0)
icon_view->priv->empty_view_drop = TRUE;
}
icon_view->priv->dest_pos = pos;
if (path)
{
icon_view->priv->dest_item =
gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view),
icon_view->priv->model, path);
gtk_icon_view_queue_draw_path (icon_view, path);
}
}
/**
* gtk_icon_view_get_drag_dest_item:
* @icon_view: a #GtkIconView
* @path: (allow-none): Return location for the path of the highlighted item, or %NULL.
* @pos: (allow-none): Return location for the drop position, or %NULL
*
* Gets information about the item that is highlighted for feedback.
*
* Since: 2.8
**/
void
gtk_icon_view_get_drag_dest_item (GtkIconView *icon_view,
GtkTreePath **path,
GtkIconViewDropPosition *pos)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (path)
{
if (icon_view->priv->dest_item)
*path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
else
*path = NULL;
}
if (pos)
*pos = icon_view->priv->dest_pos;
}
/**
* gtk_icon_view_get_dest_item_at_pos:
* @icon_view: a #GtkIconView
* @drag_x: the position to determine the destination item for
* @drag_y: the position to determine the destination item for
* @path: (allow-none): Return location for the path of the item, or %NULL.
* @pos: (allow-none): Return location for the drop position, or %NULL
*
* Determines the destination item for a given position.
*
* Return value: whether there is an item at the given position.
*
* Since: 2.8
**/
gboolean
gtk_icon_view_get_dest_item_at_pos (GtkIconView *icon_view,
gint drag_x,
gint drag_y,
GtkTreePath **path,
GtkIconViewDropPosition *pos)
{
GtkIconViewItem *item;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
g_return_val_if_fail (drag_x >= 0, FALSE);
g_return_val_if_fail (drag_y >= 0, FALSE);
g_return_val_if_fail (icon_view->priv->bin_window != NULL, FALSE);
if (path)
*path = NULL;
item = gtk_icon_view_get_item_at_coords (icon_view,
drag_x + icon_view->priv->hadjustment->value,
drag_y + icon_view->priv->vadjustment->value,
FALSE, NULL);
if (item == NULL)
return FALSE;
if (path)
*path = gtk_tree_path_new_from_indices (item->index, -1);
if (pos)
{
if (drag_x < item->x + item->width / 4)
*pos = GTK_ICON_VIEW_DROP_LEFT;
else if (drag_x > item->x + item->width * 3 / 4)
*pos = GTK_ICON_VIEW_DROP_RIGHT;
else if (drag_y < item->y + item->height / 4)
*pos = GTK_ICON_VIEW_DROP_ABOVE;
else if (drag_y > item->y + item->height * 3 / 4)
*pos = GTK_ICON_VIEW_DROP_BELOW;
else
*pos = GTK_ICON_VIEW_DROP_INTO;
}
return TRUE;
}
/**
* gtk_icon_view_create_drag_icon:
* @icon_view: a #GtkIconView
* @path: a #GtkTreePath in @icon_view
*
* Creates a #GdkPixmap representation of the item at @path.
* This image is used for a drag icon.
*
* Return value: a newly-allocated pixmap of the drag icon.
*
* Since: 2.8
**/
GdkPixmap *
gtk_icon_view_create_drag_icon (GtkIconView *icon_view,
GtkTreePath *path)
{
GtkWidget *widget;
cairo_t *cr;
GdkPixmap *drawable;
GList *l;
gint index;
GdkRectangle area;
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
g_return_val_if_fail (path != NULL, NULL);
widget = GTK_WIDGET (icon_view);
if (!gtk_widget_get_realized (widget))
return NULL;
index = gtk_tree_path_get_indices (path)[0];
for (l = icon_view->priv->items; l; l = l->next)
{
GtkIconViewItem *item = l->data;
if (index == item->index)
{
drawable = gdk_pixmap_new (icon_view->priv->bin_window,
item->width + 2,
item->height + 2,
-1);
cr = gdk_cairo_create (drawable);
cairo_set_line_width (cr, 1.);
gdk_cairo_set_source_color (cr, &gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
cairo_rectangle (cr, 0, 0, item->width + 2, item->height + 2);
cairo_fill (cr);
area.x = 0;
area.y = 0;
area.width = item->width;
area.height = item->height;
gtk_icon_view_paint_item (icon_view, cr, item, &area,
drawable, 1, 1, FALSE);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
cairo_rectangle (cr, 0.5, 0.5, item->width + 1, item->height + 1);
cairo_stroke (cr);
cairo_destroy (cr);
return drawable;
}
}
return NULL;
}
/**
* gtk_icon_view_get_reorderable:
* @icon_view: a #GtkIconView
*
* Retrieves whether the user can reorder the list via drag-and-drop.
* See gtk_icon_view_set_reorderable().
*
* Return value: %TRUE if the list can be reordered.
*
* Since: 2.8
**/
gboolean
gtk_icon_view_get_reorderable (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
return icon_view->priv->reorderable;
}
static const GtkTargetEntry item_targets[] = {
{ "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
};
/**
* gtk_icon_view_set_reorderable:
* @icon_view: A #GtkIconView.
* @reorderable: %TRUE, if the list of items can be reordered.
*
* This function is a convenience function to allow you to reorder models that
* support the #GtkTreeDragSourceIface and the #GtkTreeDragDestIface. Both
* #GtkTreeStore and #GtkListStore support these. If @reorderable is %TRUE, then
* the user can reorder the model by dragging and dropping rows. The
* developer can listen to these changes by connecting to the model's
* row_inserted and row_deleted signals. The reordering is implemented by setting up
* the icon view as a drag source and destination. Therefore, drag and
* drop can not be used in a reorderable view for any other purpose.
*
* This function does not give you any degree of control over the order -- any
* reordering is allowed. If more control is needed, you should probably
* handle drag and drop manually.
*
* Since: 2.8
**/
void
gtk_icon_view_set_reorderable (GtkIconView *icon_view,
gboolean reorderable)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
reorderable = reorderable != FALSE;
if (icon_view->priv->reorderable == reorderable)
return;
if (reorderable)
{
gtk_icon_view_enable_model_drag_source (icon_view,
GDK_BUTTON1_MASK,
item_targets,
G_N_ELEMENTS (item_targets),
GDK_ACTION_MOVE);
gtk_icon_view_enable_model_drag_dest (icon_view,
item_targets,
G_N_ELEMENTS (item_targets),
GDK_ACTION_MOVE);
}
else
{
gtk_icon_view_unset_model_drag_source (icon_view);
gtk_icon_view_unset_model_drag_dest (icon_view);
}
icon_view->priv->reorderable = reorderable;
g_object_notify (G_OBJECT (icon_view), "reorderable");
}
/* Accessibility Support */
static gpointer accessible_parent_class;
static gpointer accessible_item_parent_class;
static GQuark accessible_private_data_quark = 0;
#define GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE (gtk_icon_view_item_accessible_get_type ())
#define GTK_ICON_VIEW_ITEM_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE, GtkIconViewItemAccessible))
#define GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE))
static GType gtk_icon_view_item_accessible_get_type (void);
enum {
ACTION_ACTIVATE,
LAST_ACTION
};
typedef struct
{
AtkObject parent;
GtkIconViewItem *item;
GtkWidget *widget;
AtkStateSet *state_set;
gchar *text;
GtkTextBuffer *text_buffer;
gchar *action_descriptions[LAST_ACTION];
gchar *image_description;
guint action_idle_handler;
} GtkIconViewItemAccessible;
static const gchar *const gtk_icon_view_item_accessible_action_names[] =
{
"activate",
NULL
};
static const gchar *const gtk_icon_view_item_accessible_action_descriptions[] =
{
"Activate item",
NULL
};
typedef struct _GtkIconViewItemAccessibleClass
{
AtkObjectClass parent_class;
} GtkIconViewItemAccessibleClass;
static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item);
static gboolean
gtk_icon_view_item_accessible_idle_do_action (gpointer data)
{
GtkIconViewItemAccessible *item;
GtkIconView *icon_view;
GtkTreePath *path;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (data);
item->action_idle_handler = 0;
if (item->widget != NULL)
{
icon_view = GTK_ICON_VIEW (item->widget);
path = gtk_tree_path_new_from_indices (item->item->index, -1);
gtk_icon_view_item_activated (icon_view, path);
gtk_tree_path_free (path);
}
return FALSE;
}
static gboolean
gtk_icon_view_item_accessible_action_do_action (AtkAction *action,
gint i)
{
GtkIconViewItemAccessible *item;
if (i < 0 || i >= LAST_ACTION)
return FALSE;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
if (!GTK_IS_ICON_VIEW (item->widget))
return FALSE;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return FALSE;
switch (i)
{
case ACTION_ACTIVATE:
if (!item->action_idle_handler)
item->action_idle_handler = gdk_threads_add_idle (gtk_icon_view_item_accessible_idle_do_action, item);
break;
default:
g_assert_not_reached ();
return FALSE;
}
return TRUE;
}
static gint
gtk_icon_view_item_accessible_action_get_n_actions (AtkAction *action)
{
return LAST_ACTION;
}
static const gchar *
gtk_icon_view_item_accessible_action_get_description (AtkAction *action,
gint i)
{
GtkIconViewItemAccessible *item;
if (i < 0 || i >= LAST_ACTION)
return NULL;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
if (item->action_descriptions[i])
return item->action_descriptions[i];
else
return gtk_icon_view_item_accessible_action_descriptions[i];
}
static const gchar *
gtk_icon_view_item_accessible_action_get_name (AtkAction *action,
gint i)
{
if (i < 0 || i >= LAST_ACTION)
return NULL;
return gtk_icon_view_item_accessible_action_names[i];
}
static gboolean
gtk_icon_view_item_accessible_action_set_description (AtkAction *action,
gint i,
const gchar *description)
{
GtkIconViewItemAccessible *item;
if (i < 0 || i >= LAST_ACTION)
return FALSE;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
g_free (item->action_descriptions[i]);
item->action_descriptions[i] = g_strdup (description);
return TRUE;
}
static void
atk_action_item_interface_init (AtkActionIface *iface)
{
iface->do_action = gtk_icon_view_item_accessible_action_do_action;
iface->get_n_actions = gtk_icon_view_item_accessible_action_get_n_actions;
iface->get_description = gtk_icon_view_item_accessible_action_get_description;
iface->get_name = gtk_icon_view_item_accessible_action_get_name;
iface->set_description = gtk_icon_view_item_accessible_action_set_description;
}
static const gchar *
gtk_icon_view_item_accessible_image_get_image_description (AtkImage *image)
{
GtkIconViewItemAccessible *item;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
return item->image_description;
}
static gboolean
gtk_icon_view_item_accessible_image_set_image_description (AtkImage *image,
const gchar *description)
{
GtkIconViewItemAccessible *item;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
g_free (item->image_description);
item->image_description = g_strdup (description);
return TRUE;
}
static gboolean
get_pixbuf_box (GtkIconView *icon_view,
GtkIconViewItem *item,
GdkRectangle *box)
{
GList *l;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = l->data;
if (GTK_IS_CELL_RENDERER_PIXBUF (info->cell))
{
gtk_icon_view_get_cell_box (icon_view, item, info, box);
return TRUE;
}
}
return FALSE;
}
static gchar *
get_text (GtkIconView *icon_view,
GtkIconViewItem *item)
{
GList *l;
gchar *text;
for (l = icon_view->priv->cell_list; l; l = l->next)
{
GtkIconViewCellInfo *info = l->data;
if (GTK_IS_CELL_RENDERER_TEXT (info->cell))
{
g_object_get (info->cell, "text", &text, NULL);
return text;
}
}
return NULL;
}
static void
gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image,
gint *width,
gint *height)
{
GtkIconViewItemAccessible *item;
GdkRectangle box;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
if (!GTK_IS_ICON_VIEW (item->widget))
return;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return;
if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box))
{
*width = box.width;
*height = box.height;
}
}
static void
gtk_icon_view_item_accessible_image_get_image_position (AtkImage *image,
gint *x,
gint *y,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
GdkRectangle box;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
if (!GTK_IS_ICON_VIEW (item->widget))
return;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return;
atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box))
{
*x+= box.x - item->item->x;
*y+= box.y - item->item->y;
}
}
static void
atk_image_item_interface_init (AtkImageIface *iface)
{
iface->get_image_description = gtk_icon_view_item_accessible_image_get_image_description;
iface->set_image_description = gtk_icon_view_item_accessible_image_set_image_description;
iface->get_image_size = gtk_icon_view_item_accessible_image_get_image_size;
iface->get_image_position = gtk_icon_view_item_accessible_image_get_image_position;
}
static gchar *
gtk_icon_view_item_accessible_text_get_text (AtkText *text,
gint start_pos,
gint end_pos)
{
GtkIconViewItemAccessible *item;
GtkTextIter start, end;
GtkTextBuffer *buffer;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return NULL;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return NULL;
buffer = item->text_buffer;
gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
if (end_pos < 0)
gtk_text_buffer_get_end_iter (buffer, &end);
else
gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static gunichar
gtk_icon_view_item_accessible_text_get_character_at_offset (AtkText *text,
gint offset)
{
GtkIconViewItemAccessible *item;
GtkTextIter start, end;
GtkTextBuffer *buffer;
gchar *string;
gunichar unichar;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return '\0';
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return '\0';
buffer = item->text_buffer;
if (offset >= gtk_text_buffer_get_char_count (buffer))
return '\0';
gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
end = start;
gtk_text_iter_forward_char (&end);
string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
unichar = g_utf8_get_char (string);
g_free(string);
return unichar;
}
#if 0
static void
get_pango_text_offsets (PangoLayout *layout,
GtkTextBuffer *buffer,
gint function,
AtkTextBoundary boundary_type,
gint offset,
gint *start_offset,
gint *end_offset,
GtkTextIter *start_iter,
GtkTextIter *end_iter)
{
PangoLayoutIter *iter;
PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL;
gint index, start_index, end_index;
const gchar *text;
gboolean found = FALSE;
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, offset) - text;
iter = pango_layout_get_iter (layout);
do
{
line = pango_layout_iter_get_line_readonly (iter);
start_index = line->start_index;
end_index = start_index + line->length;
if (index >= start_index && index <= end_index)
{
/*
* Found line for offset
*/
switch (function)
{
case 0:
/*
* We want the previous line
*/
if (prev_line)
{
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_LINE_START:
end_index = start_index;
start_index = prev_line->start_index;
break;
case ATK_TEXT_BOUNDARY_LINE_END:
if (prev_prev_line)
start_index = prev_prev_line->start_index +
prev_prev_line->length;
end_index = prev_line->start_index + prev_line->length;
break;
default:
g_assert_not_reached();
}
}
else
start_index = end_index = 0;
break;
case 1:
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_LINE_START:
if (pango_layout_iter_next_line (iter))
end_index = pango_layout_iter_get_line_readonly (iter)->start_index;
break;
case ATK_TEXT_BOUNDARY_LINE_END:
if (prev_line)
start_index = prev_line->start_index +
prev_line->length;
break;
default:
g_assert_not_reached();
}
break;
case 2:
/*
* We want the next line
*/
if (pango_layout_iter_next_line (iter))
{
line = pango_layout_iter_get_line_readonly (iter);
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_LINE_START:
start_index = line->start_index;
if (pango_layout_iter_next_line (iter))
end_index = pango_layout_iter_get_line_readonly (iter)->start_index;
else
end_index = start_index + line->length;
break;
case ATK_TEXT_BOUNDARY_LINE_END:
start_index = end_index;
end_index = line->start_index + line->length;
break;
default:
g_assert_not_reached();
}
}
else
start_index = end_index;
break;
}
found = TRUE;
break;
}
prev_prev_line = prev_line;
prev_line = line;
}
while (pango_layout_iter_next_line (iter));
if (!found)
{
start_index = prev_line->start_index + prev_line->length;
end_index = start_index;
}
pango_layout_iter_free (iter);
*start_offset = g_utf8_pointer_to_offset (text, text + start_index);
*end_offset = g_utf8_pointer_to_offset (text, text + end_index);
gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset);
gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset);
}
#endif
static gchar*
gtk_icon_view_item_accessible_text_get_text_before_offset (AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset)
{
GtkIconViewItemAccessible *item;
GtkTextIter start, end;
GtkTextBuffer *buffer;
#if 0
GtkIconView *icon_view;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return NULL;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return NULL;
buffer = item->text_buffer;
if (!gtk_text_buffer_get_char_count (buffer))
{
*start_offset = 0;
*end_offset = 0;
return g_strdup ("");
}
gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
end = start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_backward_char(&start);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (!gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_word_start (&start);
end = start;
gtk_text_iter_backward_word_start(&start);
break;
case ATK_TEXT_BOUNDARY_WORD_END:
if (gtk_text_iter_inside_word (&start) &&
!gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_word_start (&start);
while (!gtk_text_iter_ends_word (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
end = start;
gtk_text_iter_backward_word_start(&start);
while (!gtk_text_iter_ends_word (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (!gtk_text_iter_starts_sentence (&start))
gtk_text_iter_backward_sentence_start (&start);
end = start;
gtk_text_iter_backward_sentence_start (&start);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
if (gtk_text_iter_inside_sentence (&start) &&
!gtk_text_iter_starts_sentence (&start))
gtk_text_iter_backward_sentence_start (&start);
while (!gtk_text_iter_ends_sentence (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
end = start;
gtk_text_iter_backward_sentence_start (&start);
while (!gtk_text_iter_ends_sentence (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
break;
case ATK_TEXT_BOUNDARY_LINE_START:
case ATK_TEXT_BOUNDARY_LINE_END:
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
get_pango_text_offsets (icon_view->priv->layout,
buffer,
0,
boundary_type,
offset,
start_offset,
end_offset,
&start,
&end);
#endif
break;
}
*start_offset = gtk_text_iter_get_offset (&start);
*end_offset = gtk_text_iter_get_offset (&end);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static gchar*
gtk_icon_view_item_accessible_text_get_text_at_offset (AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset)
{
GtkIconViewItemAccessible *item;
GtkTextIter start, end;
GtkTextBuffer *buffer;
#if 0
GtkIconView *icon_view;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return NULL;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return NULL;
buffer = item->text_buffer;
if (!gtk_text_buffer_get_char_count (buffer))
{
*start_offset = 0;
*end_offset = 0;
return g_strdup ("");
}
gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
end = start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_forward_char (&end);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (!gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_word_start (&start);
if (gtk_text_iter_inside_word (&end))
gtk_text_iter_forward_word_end (&end);
while (!gtk_text_iter_starts_word (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
break;
case ATK_TEXT_BOUNDARY_WORD_END:
if (gtk_text_iter_inside_word (&start) &&
!gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_word_start (&start);
while (!gtk_text_iter_ends_word (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
gtk_text_iter_forward_word_end (&end);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (!gtk_text_iter_starts_sentence (&start))
gtk_text_iter_backward_sentence_start (&start);
if (gtk_text_iter_inside_sentence (&end))
gtk_text_iter_forward_sentence_end (&end);
while (!gtk_text_iter_starts_sentence (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
if (gtk_text_iter_inside_sentence (&start) &&
!gtk_text_iter_starts_sentence (&start))
gtk_text_iter_backward_sentence_start (&start);
while (!gtk_text_iter_ends_sentence (&start))
{
if (!gtk_text_iter_backward_char (&start))
break;
}
gtk_text_iter_forward_sentence_end (&end);
break;
case ATK_TEXT_BOUNDARY_LINE_START:
case ATK_TEXT_BOUNDARY_LINE_END:
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
get_pango_text_offsets (icon_view->priv->layout,
buffer,
1,
boundary_type,
offset,
start_offset,
end_offset,
&start,
&end);
#endif
break;
}
*start_offset = gtk_text_iter_get_offset (&start);
*end_offset = gtk_text_iter_get_offset (&end);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static gchar*
gtk_icon_view_item_accessible_text_get_text_after_offset (AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset)
{
GtkIconViewItemAccessible *item;
GtkTextIter start, end;
GtkTextBuffer *buffer;
#if 0
GtkIconView *icon_view;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return NULL;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return NULL;
buffer = item->text_buffer;
if (!gtk_text_buffer_get_char_count (buffer))
{
*start_offset = 0;
*end_offset = 0;
return g_strdup ("");
}
gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
end = start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_forward_char(&start);
gtk_text_iter_forward_chars(&end, 2);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (gtk_text_iter_inside_word (&end))
gtk_text_iter_forward_word_end (&end);
while (!gtk_text_iter_starts_word (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
start = end;
if (!gtk_text_iter_is_end (&end))
{
gtk_text_iter_forward_word_end (&end);
while (!gtk_text_iter_starts_word (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
}
break;
case ATK_TEXT_BOUNDARY_WORD_END:
gtk_text_iter_forward_word_end (&end);
start = end;
if (!gtk_text_iter_is_end (&end))
gtk_text_iter_forward_word_end (&end);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (gtk_text_iter_inside_sentence (&end))
gtk_text_iter_forward_sentence_end (&end);
while (!gtk_text_iter_starts_sentence (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
start = end;
if (!gtk_text_iter_is_end (&end))
{
gtk_text_iter_forward_sentence_end (&end);
while (!gtk_text_iter_starts_sentence (&end))
{
if (!gtk_text_iter_forward_char (&end))
break;
}
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
gtk_text_iter_forward_sentence_end (&end);
start = end;
if (!gtk_text_iter_is_end (&end))
gtk_text_iter_forward_sentence_end (&end);
break;
case ATK_TEXT_BOUNDARY_LINE_START:
case ATK_TEXT_BOUNDARY_LINE_END:
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
get_pango_text_offsets (icon_view->priv->layout,
buffer,
2,
boundary_type,
offset,
start_offset,
end_offset,
&start,
&end);
#endif
break;
}
*start_offset = gtk_text_iter_get_offset (&start);
*end_offset = gtk_text_iter_get_offset (&end);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static gint
gtk_icon_view_item_accessible_text_get_character_count (AtkText *text)
{
GtkIconViewItemAccessible *item;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return 0;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return 0;
return gtk_text_buffer_get_char_count (item->text_buffer);
}
static void
gtk_icon_view_item_accessible_text_get_character_extents (AtkText *text,
gint offset,
gint *x,
gint *y,
gint *width,
gint *height,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
#if 0
GtkIconView *icon_view;
PangoRectangle char_rect;
const gchar *item_text;
gint index;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return;
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
item_text = pango_layout_get_text (icon_view->priv->layout);
index = g_utf8_offset_to_pointer (item_text, offset) - item_text;
pango_layout_index_to_pos (icon_view->priv->layout, index, &char_rect);
atk_component_get_position (ATK_COMPONENT (text), x, y, coord_type);
*x += item->item->layout_x - item->item->x + char_rect.x / PANGO_SCALE;
/* Look at gtk_icon_view_paint_item() to see where the text is. */
*x -= ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
*y += item->item->layout_y - item->item->y + char_rect.y / PANGO_SCALE;
*width = char_rect.width / PANGO_SCALE;
*height = char_rect.height / PANGO_SCALE;
#endif
}
static gint
gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
gint offset = 0;
#if 0
GtkIconView *icon_view;
const gchar *item_text;
gint index;
gint l_x, l_y;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return -1;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return -1;
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type);
x -= l_x + item->item->layout_x - item->item->x;
x += ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
y -= l_y + item->item->layout_y - item->item->y;
item_text = pango_layout_get_text (icon_view->priv->layout);
if (!pango_layout_xy_to_index (icon_view->priv->layout,
x * PANGO_SCALE,
y * PANGO_SCALE,
&index, NULL))
{
if (x < 0 || y < 0)
index = 0;
else
index = -1;
}
if (index == -1)
offset = g_utf8_strlen (item_text, -1);
else
offset = g_utf8_pointer_to_offset (item_text, item_text + index);
#endif
return offset;
}
static void
atk_text_item_interface_init (AtkTextIface *iface)
{
iface->get_text = gtk_icon_view_item_accessible_text_get_text;
iface->get_character_at_offset = gtk_icon_view_item_accessible_text_get_character_at_offset;
iface->get_text_before_offset = gtk_icon_view_item_accessible_text_get_text_before_offset;
iface->get_text_at_offset = gtk_icon_view_item_accessible_text_get_text_at_offset;
iface->get_text_after_offset = gtk_icon_view_item_accessible_text_get_text_after_offset;
iface->get_character_count = gtk_icon_view_item_accessible_text_get_character_count;
iface->get_character_extents = gtk_icon_view_item_accessible_text_get_character_extents;
iface->get_offset_at_point = gtk_icon_view_item_accessible_text_get_offset_at_point;
}
static void
gtk_icon_view_item_accessible_get_extents (AtkComponent *component,
gint *x,
gint *y,
gint *width,
gint *height,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
AtkObject *parent_obj;
gint l_x, l_y;
g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component));
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
if (!GTK_IS_WIDGET (item->widget))
return;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return;
*width = item->item->width;
*height = item->item->height;
if (gtk_icon_view_item_accessible_is_showing (item))
{
parent_obj = gtk_widget_get_accessible (item->widget);
atk_component_get_position (ATK_COMPONENT (parent_obj), &l_x, &l_y, coord_type);
*x = l_x + item->item->x;
*y = l_y + item->item->y;
}
else
{
*x = G_MININT;
*y = G_MININT;
}
}
static gboolean
gtk_icon_view_item_accessible_grab_focus (AtkComponent *component)
{
GtkIconViewItemAccessible *item;
GtkWidget *toplevel;
g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component), FALSE);
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
if (!GTK_IS_WIDGET (item->widget))
return FALSE;
gtk_widget_grab_focus (item->widget);
gtk_icon_view_set_cursor_item (GTK_ICON_VIEW (item->widget), item->item, -1);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget));
if (gtk_widget_is_toplevel (toplevel))
gtk_window_present (GTK_WINDOW (toplevel));
return TRUE;
}
static void
atk_component_item_interface_init (AtkComponentIface *iface)
{
iface->get_extents = gtk_icon_view_item_accessible_get_extents;
iface->grab_focus = gtk_icon_view_item_accessible_grab_focus;
}
static gboolean
gtk_icon_view_item_accessible_add_state (GtkIconViewItemAccessible *item,
AtkStateType state_type,
gboolean emit_signal)
{
gboolean rc;
rc = atk_state_set_add_state (item->state_set, state_type);
/*
* The signal should only be generated if the value changed,
* not when the item is set up. So states that are set
* initially should pass FALSE as the emit_signal argument.
*/
if (emit_signal)
{
atk_object_notify_state_change (ATK_OBJECT (item), state_type, TRUE);
/* If state_type is ATK_STATE_VISIBLE, additional notification */
if (state_type == ATK_STATE_VISIBLE)
g_signal_emit_by_name (item, "visible-data-changed");
}
return rc;
}
static gboolean
gtk_icon_view_item_accessible_remove_state (GtkIconViewItemAccessible *item,
AtkStateType state_type,
gboolean emit_signal)
{
if (atk_state_set_contains_state (item->state_set, state_type))
{
gboolean rc;
rc = atk_state_set_remove_state (item->state_set, state_type);
/*
* The signal should only be generated if the value changed,
* not when the item is set up. So states that are set
* initially should pass FALSE as the emit_signal argument.
*/
if (emit_signal)
{
atk_object_notify_state_change (ATK_OBJECT (item), state_type, FALSE);
/* If state_type is ATK_STATE_VISIBLE, additional notification */
if (state_type == ATK_STATE_VISIBLE)
g_signal_emit_by_name (item, "visible-data-changed");
}
return rc;
}
else
return FALSE;
}
static gboolean
gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item)
{
GtkAllocation allocation;
GtkIconView *icon_view;
GdkRectangle visible_rect;
gboolean is_showing;
/*
* An item is considered "SHOWING" if any part of the item is in the
* visible rectangle.
*/
if (!GTK_IS_ICON_VIEW (item->widget))
return FALSE;
if (item->item == NULL)
return FALSE;
gtk_widget_get_allocation (item->widget, &allocation);
icon_view = GTK_ICON_VIEW (item->widget);
visible_rect.x = 0;
if (icon_view->priv->hadjustment)
visible_rect.x += icon_view->priv->hadjustment->value;
visible_rect.y = 0;
if (icon_view->priv->hadjustment)
visible_rect.y += icon_view->priv->vadjustment->value;
visible_rect.width = allocation.width;
visible_rect.height = allocation.height;
if (((item->item->x + item->item->width) < visible_rect.x) ||
((item->item->y + item->item->height) < (visible_rect.y)) ||
(item->item->x > (visible_rect.x + visible_rect.width)) ||
(item->item->y > (visible_rect.y + visible_rect.height)))
is_showing = FALSE;
else
is_showing = TRUE;
return is_showing;
}
static gboolean
gtk_icon_view_item_accessible_set_visibility (GtkIconViewItemAccessible *item,
gboolean emit_signal)
{
if (gtk_icon_view_item_accessible_is_showing (item))
return gtk_icon_view_item_accessible_add_state (item, ATK_STATE_SHOWING,
emit_signal);
else
return gtk_icon_view_item_accessible_remove_state (item, ATK_STATE_SHOWING,
emit_signal);
}
static void
gtk_icon_view_item_accessible_object_init (GtkIconViewItemAccessible *item)
{
gint i;
item->state_set = atk_state_set_new ();
atk_state_set_add_state (item->state_set, ATK_STATE_ENABLED);
atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSABLE);
atk_state_set_add_state (item->state_set, ATK_STATE_SENSITIVE);
atk_state_set_add_state (item->state_set, ATK_STATE_SELECTABLE);
atk_state_set_add_state (item->state_set, ATK_STATE_VISIBLE);
for (i = 0; i < LAST_ACTION; i++)
item->action_descriptions[i] = NULL;
item->image_description = NULL;
item->action_idle_handler = 0;
}
static void
gtk_icon_view_item_accessible_finalize (GObject *object)
{
GtkIconViewItemAccessible *item;
gint i;
g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (object));
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (object);
if (item->widget)
g_object_remove_weak_pointer (G_OBJECT (item->widget), (gpointer) &item->widget);
if (item->state_set)
g_object_unref (item->state_set);
if (item->text_buffer)
g_object_unref (item->text_buffer);
for (i = 0; i < LAST_ACTION; i++)
g_free (item->action_descriptions[i]);
g_free (item->image_description);
if (item->action_idle_handler)
{
g_source_remove (item->action_idle_handler);
item->action_idle_handler = 0;
}
G_OBJECT_CLASS (accessible_item_parent_class)->finalize (object);
}
static G_CONST_RETURN gchar*
gtk_icon_view_item_accessible_get_name (AtkObject *obj)
{
if (obj->name)
return obj->name;
else
{
GtkIconViewItemAccessible *item;
GtkTextIter start_iter;
GtkTextIter end_iter;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
gtk_text_buffer_get_start_iter (item->text_buffer, &start_iter);
gtk_text_buffer_get_end_iter (item->text_buffer, &end_iter);
return gtk_text_buffer_get_text (item->text_buffer, &start_iter, &end_iter, FALSE);
}
}
static AtkObject*
gtk_icon_view_item_accessible_get_parent (AtkObject *obj)
{
GtkIconViewItemAccessible *item;
g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), NULL);
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
if (item->widget)
return gtk_widget_get_accessible (item->widget);
else
return NULL;
}
static gint
gtk_icon_view_item_accessible_get_index_in_parent (AtkObject *obj)
{
GtkIconViewItemAccessible *item;
g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), 0);
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
return item->item->index;
}
static AtkStateSet *
gtk_icon_view_item_accessible_ref_state_set (AtkObject *obj)
{
GtkIconViewItemAccessible *item;
GtkIconView *icon_view;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
g_return_val_if_fail (item->state_set, NULL);
if (!item->widget)
return NULL;
icon_view = GTK_ICON_VIEW (item->widget);
if (icon_view->priv->cursor_item == item->item)
atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSED);
else
atk_state_set_remove_state (item->state_set, ATK_STATE_FOCUSED);
if (item->item->selected)
atk_state_set_add_state (item->state_set, ATK_STATE_SELECTED);
else
atk_state_set_remove_state (item->state_set, ATK_STATE_SELECTED);
return g_object_ref (item->state_set);
}
static void
gtk_icon_view_item_accessible_class_init (AtkObjectClass *klass)
{
GObjectClass *gobject_class;
accessible_item_parent_class = g_type_class_peek_parent (klass);
gobject_class = (GObjectClass *)klass;
gobject_class->finalize = gtk_icon_view_item_accessible_finalize;
klass->get_index_in_parent = gtk_icon_view_item_accessible_get_index_in_parent;
klass->get_name = gtk_icon_view_item_accessible_get_name;
klass->get_parent = gtk_icon_view_item_accessible_get_parent;
klass->ref_state_set = gtk_icon_view_item_accessible_ref_state_set;
}
static GType
gtk_icon_view_item_accessible_get_type (void)
{
static GType type = 0;
if (!type)
{
const GTypeInfo tinfo =
{
sizeof (GtkIconViewItemAccessibleClass),
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) gtk_icon_view_item_accessible_class_init, /* class init */
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
sizeof (GtkIconViewItemAccessible), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) gtk_icon_view_item_accessible_object_init, /* instance init */
NULL /* value table */
};
const GInterfaceInfo atk_component_info =
{
(GInterfaceInitFunc) atk_component_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
const GInterfaceInfo atk_action_info =
{
(GInterfaceInitFunc) atk_action_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
const GInterfaceInfo atk_image_info =
{
(GInterfaceInitFunc) atk_image_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
const GInterfaceInfo atk_text_info =
{
(GInterfaceInitFunc) atk_text_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
type = g_type_register_static (ATK_TYPE_OBJECT,
I_("GtkIconViewItemAccessible"), &tinfo, 0);
g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
&atk_component_info);
g_type_add_interface_static (type, ATK_TYPE_ACTION,
&atk_action_info);
g_type_add_interface_static (type, ATK_TYPE_IMAGE,
&atk_image_info);
g_type_add_interface_static (type, ATK_TYPE_TEXT,
&atk_text_info);
}
return type;
}
#define GTK_TYPE_ICON_VIEW_ACCESSIBLE (gtk_icon_view_accessible_get_type ())
#define GTK_ICON_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE, GtkIconViewAccessible))
#define GTK_IS_ICON_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE))
static GType gtk_icon_view_accessible_get_type (void);
typedef struct
{
AtkObject parent;
} GtkIconViewAccessible;
typedef struct
{
AtkObject *item;
gint index;
} GtkIconViewItemAccessibleInfo;
typedef struct
{
GList *items;
GtkAdjustment *old_hadj;
GtkAdjustment *old_vadj;
GtkTreeModel *model;
} GtkIconViewAccessiblePrivate;
static GtkIconViewAccessiblePrivate *
gtk_icon_view_accessible_get_priv (AtkObject *accessible)
{
return g_object_get_qdata (G_OBJECT (accessible),
accessible_private_data_quark);
}
static void
gtk_icon_view_item_accessible_info_new (AtkObject *accessible,
AtkObject *item,
gint index)
{
GtkIconViewItemAccessibleInfo *info;
GtkIconViewItemAccessibleInfo *tmp_info;
GtkIconViewAccessiblePrivate *priv;
GList *items;
info = g_new (GtkIconViewItemAccessibleInfo, 1);
info->item = item;
info->index = index;
priv = gtk_icon_view_accessible_get_priv (accessible);
items = priv->items;
while (items)
{
tmp_info = items->data;
if (tmp_info->index > index)
break;
items = items->next;
}
priv->items = g_list_insert_before (priv->items, items, info);
priv->old_hadj = NULL;
priv->old_vadj = NULL;
}
static gint
gtk_icon_view_accessible_get_n_children (AtkObject *accessible)
{
GtkIconView *icon_view;
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (!widget)
return 0;
icon_view = GTK_ICON_VIEW (widget);
return g_list_length (icon_view->priv->items);
}
static AtkObject *
gtk_icon_view_accessible_find_child (AtkObject *accessible,
gint index)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconViewItemAccessibleInfo *info;
GList *items;
priv = gtk_icon_view_accessible_get_priv (accessible);
items = priv->items;
while (items)
{
info = items->data;
if (info->index == index)
return info->item;
items = items->next;
}
return NULL;
}
static AtkObject *
gtk_icon_view_accessible_ref_child (AtkObject *accessible,
gint index)
{
GtkIconView *icon_view;
GtkWidget *widget;
GList *icons;
AtkObject *obj;
GtkIconViewItemAccessible *a11y_item;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (!widget)
return NULL;
icon_view = GTK_ICON_VIEW (widget);
icons = g_list_nth (icon_view->priv->items, index);
obj = NULL;
if (icons)
{
GtkIconViewItem *item = icons->data;
g_return_val_if_fail (item->index == index, NULL);
obj = gtk_icon_view_accessible_find_child (accessible, index);
if (!obj)
{
gchar *text;
obj = g_object_new (gtk_icon_view_item_accessible_get_type (), NULL);
gtk_icon_view_item_accessible_info_new (accessible,
obj,
index);
obj->role = ATK_ROLE_ICON;
a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
a11y_item->item = item;
a11y_item->widget = widget;
a11y_item->text_buffer = gtk_text_buffer_new (NULL);
gtk_icon_view_set_cell_data (icon_view, item);
text = get_text (icon_view, item);
if (text)
{
gtk_text_buffer_set_text (a11y_item->text_buffer, text, -1);
g_free (text);
}
gtk_icon_view_item_accessible_set_visibility (a11y_item, FALSE);
g_object_add_weak_pointer (G_OBJECT (widget), (gpointer) &(a11y_item->widget));
}
g_object_ref (obj);
}
return obj;
}
static void
gtk_icon_view_accessible_traverse_items (GtkIconViewAccessible *view,
GList *list)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconViewItemAccessibleInfo *info;
GtkIconViewItemAccessible *item;
GList *items;
priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (view));
if (priv->items)
{
GtkWidget *widget;
gboolean act_on_item;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (view));
if (widget == NULL)
return;
items = priv->items;
act_on_item = (list == NULL);
while (items)
{
info = (GtkIconViewItemAccessibleInfo *)items->data;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
if (act_on_item == FALSE && list == items)
act_on_item = TRUE;
if (act_on_item)
gtk_icon_view_item_accessible_set_visibility (item, TRUE);
items = items->next;
}
}
}
static void
gtk_icon_view_accessible_adjustment_changed (GtkAdjustment *adjustment,
GtkIconView *icon_view)
{
AtkObject *obj;
GtkIconViewAccessible *view;
/*
* The scrollbars have changed
*/
obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
view = GTK_ICON_VIEW_ACCESSIBLE (obj);
gtk_icon_view_accessible_traverse_items (view, NULL);
}
static void
gtk_icon_view_accessible_set_scroll_adjustments (GtkWidget *widget,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
AtkObject *atk_obj;
GtkIconViewAccessiblePrivate *priv;
atk_obj = gtk_widget_get_accessible (widget);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
if (priv->old_hadj != hadj)
{
if (priv->old_hadj)
{
g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
(gpointer *)&priv->old_hadj);
g_signal_handlers_disconnect_by_func (priv->old_hadj,
(gpointer) gtk_icon_view_accessible_adjustment_changed,
widget);
}
priv->old_hadj = hadj;
if (priv->old_hadj)
{
g_object_add_weak_pointer (G_OBJECT (priv->old_hadj),
(gpointer *)&priv->old_hadj);
g_signal_connect (hadj,
"value-changed",
G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
widget);
}
}
if (priv->old_vadj != vadj)
{
if (priv->old_vadj)
{
g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
(gpointer *)&priv->old_vadj);
g_signal_handlers_disconnect_by_func (priv->old_vadj,
(gpointer) gtk_icon_view_accessible_adjustment_changed,
widget);
}
priv->old_vadj = vadj;
if (priv->old_vadj)
{
g_object_add_weak_pointer (G_OBJECT (priv->old_vadj),
(gpointer *)&priv->old_vadj);
g_signal_connect (vadj,
"value-changed",
G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
widget);
}
}
}
static void
gtk_icon_view_accessible_model_row_changed (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
AtkObject *atk_obj;
gint index;
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
GtkIconViewAccessible *a11y_view;
GtkIconViewItemAccessible *a11y_item;
const gchar *name;
gchar *text;
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
a11y_view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
index = gtk_tree_path_get_indices(path)[0];
a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (
gtk_icon_view_accessible_find_child (atk_obj, index));
if (a11y_item)
{
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_obj));
icon_view = GTK_ICON_VIEW (widget);
item = a11y_item->item;
name = gtk_icon_view_item_accessible_get_name (ATK_OBJECT (a11y_item));
if (!name || strcmp (name, "") == 0)
{
gtk_icon_view_set_cell_data (icon_view, item);
text = get_text (icon_view, item);
if (text)
{
gtk_text_buffer_set_text (a11y_item->text_buffer, text, -1);
g_free (text);
}
}
}
g_signal_emit_by_name (atk_obj, "visible-data-changed");
return;
}
static void
gtk_icon_view_accessible_model_row_inserted (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconViewItemAccessibleInfo *info;
GtkIconViewAccessible *view;
GtkIconViewItemAccessible *item;
GList *items;
GList *tmp_list;
AtkObject *atk_obj;
gint index;
index = gtk_tree_path_get_indices(path)[0];
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
items = priv->items;
tmp_list = NULL;
while (items)
{
info = items->data;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
if (info->index != item->item->index)
{
if (info->index < index)
g_warning ("Unexpected index value on insertion %d %d", index, info->index);
if (tmp_list == NULL)
tmp_list = items;
info->index = item->item->index;
}
items = items->next;
}
gtk_icon_view_accessible_traverse_items (view, tmp_list);
g_signal_emit_by_name (atk_obj, "children-changed::add",
index, NULL, NULL);
return;
}
static void
gtk_icon_view_accessible_model_row_deleted (GtkTreeModel *tree_model,
GtkTreePath *path,
gpointer user_data)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconViewItemAccessibleInfo *info;
GtkIconViewAccessible *view;
GtkIconViewItemAccessible *item;
GList *items;
GList *tmp_list;
GList *deleted_item;
AtkObject *atk_obj;
gint index;
index = gtk_tree_path_get_indices(path)[0];
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
items = priv->items;
tmp_list = NULL;
deleted_item = NULL;
info = NULL;
while (items)
{
info = items->data;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
if (info->index == index)
{
deleted_item = items;
}
if (info->index != item->item->index)
{
if (tmp_list == NULL)
tmp_list = items;
info->index = item->item->index;
}
items = items->next;
}
gtk_icon_view_accessible_traverse_items (view, tmp_list);
if (deleted_item)
{
info = deleted_item->data;
gtk_icon_view_item_accessible_add_state (GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item), ATK_STATE_DEFUNCT, TRUE);
g_signal_emit_by_name (atk_obj, "children-changed::remove",
index, NULL, NULL);
priv->items = g_list_remove_link (priv->items, deleted_item);
g_free (info);
}
return;
}
static gint
gtk_icon_view_accessible_item_compare (GtkIconViewItemAccessibleInfo *i1,
GtkIconViewItemAccessibleInfo *i2)
{
return i1->index - i2->index;
}
static void
gtk_icon_view_accessible_model_rows_reordered (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconViewItemAccessibleInfo *info;
GtkIconView *icon_view;
GtkIconViewItemAccessible *item;
GList *items;
AtkObject *atk_obj;
gint *order;
gint length, i;
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
icon_view = GTK_ICON_VIEW (user_data);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
length = gtk_tree_model_iter_n_children (tree_model, NULL);
order = g_new (gint, length);
for (i = 0; i < length; i++)
order [new_order[i]] = i;
items = priv->items;
while (items)
{
info = items->data;
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
info->index = order[info->index];
item->item = g_list_nth_data (icon_view->priv->items, info->index);
items = items->next;
}
g_free (order);
priv->items = g_list_sort (priv->items,
(GCompareFunc)gtk_icon_view_accessible_item_compare);
return;
}
static void
gtk_icon_view_accessible_disconnect_model_signals (GtkTreeModel *model,
GtkWidget *widget)
{
GObject *obj;
obj = G_OBJECT (model);
g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_changed, widget);
g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_inserted, widget);
g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_deleted, widget);
g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_rows_reordered, widget);
}
static void
gtk_icon_view_accessible_connect_model_signals (GtkIconView *icon_view)
{
GObject *obj;
obj = G_OBJECT (icon_view->priv->model);
g_signal_connect_data (obj, "row-changed",
(GCallback) gtk_icon_view_accessible_model_row_changed,
icon_view, NULL, 0);
g_signal_connect_data (obj, "row-inserted",
(GCallback) gtk_icon_view_accessible_model_row_inserted,
icon_view, NULL, G_CONNECT_AFTER);
g_signal_connect_data (obj, "row-deleted",
(GCallback) gtk_icon_view_accessible_model_row_deleted,
icon_view, NULL, G_CONNECT_AFTER);
g_signal_connect_data (obj, "rows-reordered",
(GCallback) gtk_icon_view_accessible_model_rows_reordered,
icon_view, NULL, G_CONNECT_AFTER);
}
static void
gtk_icon_view_accessible_clear_cache (GtkIconViewAccessiblePrivate *priv)
{
GtkIconViewItemAccessibleInfo *info;
GList *items;
items = priv->items;
while (items)
{
info = (GtkIconViewItemAccessibleInfo *) items->data;
g_object_unref (info->item);
g_free (items->data);
items = items->next;
}
g_list_free (priv->items);
priv->items = NULL;
}
static void
gtk_icon_view_accessible_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkIconView *icon_view;
GtkWidget *widget;
AtkObject *atk_obj;
GtkIconViewAccessiblePrivate *priv;
if (strcmp (pspec->name, "model") == 0)
{
widget = GTK_WIDGET (obj);
atk_obj = gtk_widget_get_accessible (widget);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
if (priv->model)
{
g_object_remove_weak_pointer (G_OBJECT (priv->model),
(gpointer *)&priv->model);
gtk_icon_view_accessible_disconnect_model_signals (priv->model, widget);
}
gtk_icon_view_accessible_clear_cache (priv);
icon_view = GTK_ICON_VIEW (obj);
priv->model = icon_view->priv->model;
/* If there is no model the GtkIconView is probably being destroyed */
if (priv->model)
{
g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
gtk_icon_view_accessible_connect_model_signals (icon_view);
}
}
return;
}
static void
gtk_icon_view_accessible_initialize (AtkObject *accessible,
gpointer data)
{
GtkIconViewAccessiblePrivate *priv;
GtkIconView *icon_view;
if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize)
ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data);
priv = g_new0 (GtkIconViewAccessiblePrivate, 1);
g_object_set_qdata (G_OBJECT (accessible),
accessible_private_data_quark,
priv);
icon_view = GTK_ICON_VIEW (data);
if (icon_view->priv->hadjustment)
{
priv->old_hadj = icon_view->priv->hadjustment;
g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj);
g_signal_connect (icon_view->priv->hadjustment,
"value-changed",
G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
icon_view);
}
if (icon_view->priv->vadjustment)
{
priv->old_vadj = icon_view->priv->vadjustment;
g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj);
g_signal_connect (icon_view->priv->vadjustment,
"value-changed",
G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
icon_view);
}
g_signal_connect_after (data,
"set-scroll-adjustments",
G_CALLBACK (gtk_icon_view_accessible_set_scroll_adjustments),
NULL);
g_signal_connect (data,
"notify",
G_CALLBACK (gtk_icon_view_accessible_notify_gtk),
NULL);
priv->model = icon_view->priv->model;
if (priv->model)
{
g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
gtk_icon_view_accessible_connect_model_signals (icon_view);
}
accessible->role = ATK_ROLE_LAYERED_PANE;
}
static void
gtk_icon_view_accessible_finalize (GObject *object)
{
GtkIconViewAccessiblePrivate *priv;
priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (object));
gtk_icon_view_accessible_clear_cache (priv);
g_free (priv);
G_OBJECT_CLASS (accessible_parent_class)->finalize (object);
}
static void
gtk_icon_view_accessible_destroyed (GtkWidget *widget,
GtkAccessible *accessible)
{
AtkObject *atk_obj;
GtkIconViewAccessiblePrivate *priv;
atk_obj = ATK_OBJECT (accessible);
priv = gtk_icon_view_accessible_get_priv (atk_obj);
if (priv->old_hadj)
{
g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
(gpointer *)&priv->old_hadj);
g_signal_handlers_disconnect_by_func (priv->old_hadj,
(gpointer) gtk_icon_view_accessible_adjustment_changed,
widget);
priv->old_hadj = NULL;
}
if (priv->old_vadj)
{
g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
(gpointer *)&priv->old_vadj);
g_signal_handlers_disconnect_by_func (priv->old_vadj,
(gpointer) gtk_icon_view_accessible_adjustment_changed,
widget);
priv->old_vadj = NULL;
}
}
static void
gtk_icon_view_accessible_connect_widget_destroyed (GtkAccessible *accessible)
{
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (widget)
{
g_signal_connect_after (widget,
"destroy",
G_CALLBACK (gtk_icon_view_accessible_destroyed),
accessible);
}
GTK_ACCESSIBLE_CLASS (accessible_parent_class)->connect_widget_destroyed (accessible);
}
static void
gtk_icon_view_accessible_class_init (AtkObjectClass *klass)
{
GObjectClass *gobject_class;
GtkAccessibleClass *accessible_class;
accessible_parent_class = g_type_class_peek_parent (klass);
gobject_class = (GObjectClass *)klass;
accessible_class = (GtkAccessibleClass *)klass;
gobject_class->finalize = gtk_icon_view_accessible_finalize;
klass->get_n_children = gtk_icon_view_accessible_get_n_children;
klass->ref_child = gtk_icon_view_accessible_ref_child;
klass->initialize = gtk_icon_view_accessible_initialize;
accessible_class->connect_widget_destroyed = gtk_icon_view_accessible_connect_widget_destroyed;
accessible_private_data_quark = g_quark_from_static_string ("icon_view-accessible-private-data");
}
static AtkObject*
gtk_icon_view_accessible_ref_accessible_at_point (AtkComponent *component,
gint x,
gint y,
AtkCoordType coord_type)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
gint x_pos, y_pos;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (component));
if (widget == NULL)
/* State is defunct */
return NULL;
icon_view = GTK_ICON_VIEW (widget);
atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type);
item = gtk_icon_view_get_item_at_coords (icon_view, x - x_pos, y - y_pos, TRUE, NULL);
if (item)
return gtk_icon_view_accessible_ref_child (ATK_OBJECT (component), item->index);
return NULL;
}
static void
atk_component_interface_init (AtkComponentIface *iface)
{
iface->ref_accessible_at_point = gtk_icon_view_accessible_ref_accessible_at_point;
}
static gboolean
gtk_icon_view_accessible_add_selection (AtkSelection *selection,
gint i)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
item = g_list_nth_data (icon_view->priv->items, i);
if (!item)
return FALSE;
gtk_icon_view_select_item (icon_view, item);
return TRUE;
}
static gboolean
gtk_icon_view_accessible_clear_selection (AtkSelection *selection)
{
GtkWidget *widget;
GtkIconView *icon_view;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
gtk_icon_view_unselect_all (icon_view);
return TRUE;
}
static AtkObject*
gtk_icon_view_accessible_ref_selection (AtkSelection *selection,
gint i)
{
GList *l;
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return NULL;
icon_view = GTK_ICON_VIEW (widget);
l = icon_view->priv->items;
while (l)
{
item = l->data;
if (item->selected)
{
if (i == 0)
return atk_object_ref_accessible_child (gtk_widget_get_accessible (widget), item->index);
else
i--;
}
l = l->next;
}
return NULL;
}
static gint
gtk_icon_view_accessible_get_selection_count (AtkSelection *selection)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
GList *l;
gint count;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return 0;
icon_view = GTK_ICON_VIEW (widget);
l = icon_view->priv->items;
count = 0;
while (l)
{
item = l->data;
if (item->selected)
count++;
l = l->next;
}
return count;
}
static gboolean
gtk_icon_view_accessible_is_child_selected (AtkSelection *selection,
gint i)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
item = g_list_nth_data (icon_view->priv->items, i);
if (!item)
return FALSE;
return item->selected;
}
static gboolean
gtk_icon_view_accessible_remove_selection (AtkSelection *selection,
gint i)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
GList *l;
gint count;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
l = icon_view->priv->items;
count = 0;
while (l)
{
item = l->data;
if (item->selected)
{
if (count == i)
{
gtk_icon_view_unselect_item (icon_view, item);
return TRUE;
}
count++;
}
l = l->next;
}
return FALSE;
}
static gboolean
gtk_icon_view_accessible_select_all_selection (AtkSelection *selection)
{
GtkWidget *widget;
GtkIconView *icon_view;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
gtk_icon_view_select_all (icon_view);
return TRUE;
}
static void
gtk_icon_view_accessible_selection_interface_init (AtkSelectionIface *iface)
{
iface->add_selection = gtk_icon_view_accessible_add_selection;
iface->clear_selection = gtk_icon_view_accessible_clear_selection;
iface->ref_selection = gtk_icon_view_accessible_ref_selection;
iface->get_selection_count = gtk_icon_view_accessible_get_selection_count;
iface->is_child_selected = gtk_icon_view_accessible_is_child_selected;
iface->remove_selection = gtk_icon_view_accessible_remove_selection;
iface->select_all_selection = gtk_icon_view_accessible_select_all_selection;
}
static GType
gtk_icon_view_accessible_get_type (void)
{
static GType type = 0;
if (!type)
{
GTypeInfo tinfo =
{
0, /* class size */
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) gtk_icon_view_accessible_class_init,
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
0, /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) NULL, /* instance init */
NULL /* value table */
};
const GInterfaceInfo atk_component_info =
{
(GInterfaceInitFunc) atk_component_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
const GInterfaceInfo atk_selection_info =
{
(GInterfaceInitFunc) gtk_icon_view_accessible_selection_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
/*
* Figure out the size of the class and instance
* we are deriving from
*/
AtkObjectFactory *factory;
GType derived_type;
GTypeQuery query;
GType derived_atk_type;
derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
factory = atk_registry_get_factory (atk_get_default_registry (),
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
g_type_query (derived_atk_type, &query);
tinfo.class_size = query.class_size;
tinfo.instance_size = query.instance_size;
type = g_type_register_static (derived_atk_type,
I_("GtkIconViewAccessible"),
&tinfo, 0);
g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
&atk_component_info);
g_type_add_interface_static (type, ATK_TYPE_SELECTION,
&atk_selection_info);
}
return type;
}
static AtkObject *
gtk_icon_view_accessible_new (GObject *obj)
{
AtkObject *accessible;
g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
accessible = g_object_new (gtk_icon_view_accessible_get_type (), NULL);
atk_object_initialize (accessible, obj);
return accessible;
}
static GType
gtk_icon_view_accessible_factory_get_accessible_type (void)
{
return gtk_icon_view_accessible_get_type ();
}
static AtkObject*
gtk_icon_view_accessible_factory_create_accessible (GObject *obj)
{
return gtk_icon_view_accessible_new (obj);
}
static void
gtk_icon_view_accessible_factory_class_init (AtkObjectFactoryClass *klass)
{
klass->create_accessible = gtk_icon_view_accessible_factory_create_accessible;
klass->get_accessible_type = gtk_icon_view_accessible_factory_get_accessible_type;
}
static GType
gtk_icon_view_accessible_factory_get_type (void)
{
static GType type = 0;
if (!type)
{
const GTypeInfo tinfo =
{
sizeof (AtkObjectFactoryClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_icon_view_accessible_factory_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (AtkObjectFactory),
0, /* n_preallocs */
NULL, NULL
};
type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
I_("GtkIconViewAccessibleFactory"),
&tinfo, 0);
}
return type;
}
static AtkObject *
gtk_icon_view_get_accessible (GtkWidget *widget)
{
static gboolean first_time = TRUE;
if (first_time)
{
AtkObjectFactory *factory;
AtkRegistry *registry;
GType derived_type;
GType derived_atk_type;
/*
* Figure out whether accessibility is enabled by looking at the
* type of the accessible object which would be created for
* the parent type of GtkIconView.
*/
derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
registry = atk_get_default_registry ();
factory = atk_registry_get_factory (registry,
derived_type);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
atk_registry_set_factory_type (registry,
GTK_TYPE_ICON_VIEW,
gtk_icon_view_accessible_factory_get_type ());
first_time = FALSE;
}
return GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->get_accessible (widget);
}
static gboolean
gtk_icon_view_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, data))
return TRUE;
return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
tagname, parser, data);
}
static void
gtk_icon_view_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
if (strcmp (tagname, "attributes") == 0)
_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
data);
else
parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
data);
}
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