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b18b33ae82
gtk2/gtk/gtkiconview.c
Javier Jardón b18b33ae82 Revert "Forward-port a GtkAdjustment compatibility fix" 
In the early 2.14.x releases, GtkAdjustment was changed to enforce
that values are restricted to the range [lower, upper - page_size].
This has always been the documented behaviour, and the recommended
practice is to set page_size to 0 when using adjustments for simple
scalar values, like in a slider or spin button.
Due to the large number of applications that are affected by this
change, the behaviour has been reverted to the old behaviour in
2.14.3, with an explicit warning that this change will be
reintroduced in 2.90.

This reverts commit e6373738fc.

https://bugzilla.gnome.org/show_bug.cgi?id=619474
2010-05-24 15:39:30 +02:00

9880 lines
276 KiB
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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 "gtktreednd.h"
#include "gtkprivate.h"
#include "gtkalias.h"
#undef DEBUG_ICON_VIEW
#define SCROLL_EDGE_SIZE 15
#define GTK_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ICON_VIEW, GtkIconViewPrivate))
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;
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 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_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,
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:orientation:
*
* The 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_ORIENTATION,
g_param_spec_enum ("orientation",
P_("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_a, GDK_CONTROL_MASK,
"select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK,
"toggle-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK,
"toggle-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_space, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
"activate-cursor-item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
"activate-cursor-item", 0);
gtk_icon_view_add_move_binding (binding_set, GDK_Up, 0,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Up, 0,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_Down, 0,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Down, 0,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_Home, 0,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Home, 0,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_End, 0,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_End, 0,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_Page_Up, 0,
GTK_MOVEMENT_PAGES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0,
GTK_MOVEMENT_PAGES, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_Page_Down, 0,
GTK_MOVEMENT_PAGES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0,
GTK_MOVEMENT_PAGES, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
gtk_icon_view_add_move_binding (binding_set, GDK_KP_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
gtk_icon_view_add_move_binding (binding_set, GDK_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 = GTK_ICON_VIEW_GET_PRIVATE (icon_view);
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->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_ORIENTATION:
gtk_icon_view_set_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_ORIENTATION:
g_value_set_enum (value, icon_view->priv->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;
GdkWindowAttr attributes;
gint attributes_mask;
icon_view = GTK_ICON_VIEW (widget);
gtk_widget_set_realized (widget, TRUE);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->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;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
gdk_window_set_user_data (widget->window, widget);
/* Make the window for the icon view */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (icon_view->priv->width, widget->allocation.width);
attributes.height = MAX (icon_view->priv->height, widget->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 (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (icon_view->priv->bin_window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]);
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);
if (gtk_widget_get_realized (widget))
{
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->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);
if (gtk_widget_get_realized (widget))
{
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->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;
widget->allocation = *allocation;
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (widget->window,
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 (gdk_region_rect_in (expose->region, &area) == GDK_OVERLAP_RECTANGLE_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)
{
switch (dest_pos)
{
case GTK_ICON_VIEW_DROP_INTO:
gtk_paint_focus (widget->style,
icon_view->priv->bin_window,
gtk_widget_get_state (widget),
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 (widget->style,
icon_view->priv->bin_window,
gtk_widget_get_state (widget),
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 (widget->style,
icon_view->priv->bin_window,
gtk_widget_get_state (widget),
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 (widget->style,
icon_view->priv->bin_window,
gtk_widget_get_state (widget),
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 (widget->style,
icon_view->priv->bin_window,
gtk_widget_get_state (widget),
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)
{
GdkRectangle *rectangles;
gint n_rectangles;
gdk_region_get_rectangles (expose->region,
&rectangles,
&n_rectangles);
while (n_rectangles--)
gtk_icon_view_paint_rubberband (icon_view, cr, &rectangles[n_rectangles]);
g_free (rectangles);
}
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)
{
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));
if (abs_y < 0 || abs_y > widget->allocation.height)
{
if (abs_y < 0)
icon_view->priv->scroll_value_diff = abs_y;
else
icon_view->priv->scroll_value_diff = abs_y - widget->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->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_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;
GdkRegion *invalid_region;
icon_view = GTK_ICON_VIEW (data);
gdk_window_get_pointer (icon_view->priv->bin_window, &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 = gdk_region_rectangle (&old_area);
gdk_region_union_with_rect (invalid_region, &new_area);
gdk_rectangle_intersect (&old_area, &new_area, &common);
if (common.width > 2 && common.height > 2)
{
GdkRegion *common_region;
/* make sure the border is invalidated */
common.x += 1;
common.y += 1;
common.width -= 2;
common.height -= 2;
common_region = gdk_region_rectangle (&common);
gdk_region_subtract (invalid_region, common_region);
gdk_region_destroy (common_region);
}
gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE);
gdk_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,
gint x,
gint y)
{
GList *items;
g_assert (!icon_view->priv->doing_rubberband);
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;
gtk_grab_add (GTK_WIDGET (icon_view));
}
static void
gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view)
{
if (!icon_view->priv->doing_rubberband)
return;
icon_view->priv->doing_rubberband = FALSE;
gtk_grab_remove (GTK_WIDGET (icon_view));
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 (!info->cell->visible)
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)
{
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 (GTK_WIDGET (icon_view)) == 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 (GTK_WIDGET (icon_view),
"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)
{
if ((icon_view->priv->columns <= 0 && current_width > GTK_WIDGET (icon_view)->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)
{
gint y = 0, maximum_width = 0;
GList *icons;
GtkWidget *widget;
gint row;
gint item_width;
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;
y += icon_view->priv->margin;
if (y != icon_view->priv->height)
icon_view->priv->height = y;
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 (icon_view->priv->width != widget->requisition.width ||
icon_view->priv->height != widget->requisition.height)
gtk_widget_queue_resize_no_redraw (widget);
if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
gdk_window_resize (icon_view->priv->bin_window,
MAX (icon_view->priv->width, widget->allocation.width),
MAX (icon_view->priv->height, widget->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->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->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 (!info->cell->visible)
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->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->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 (!info->cell->visible)
continue;
if (icon_view->priv->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->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->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;
if (icon_view->priv->model == NULL)
return;
gtk_icon_view_set_cell_data (icon_view, item);
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
NULL);
padding = focus_width;
if (item->selected)
{
flags = GTK_CELL_RENDERER_SELECTED;
if (gtk_widget_has_focus (GTK_WIDGET (icon_view)))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
}
else
{
flags = 0;
state = GTK_STATE_NORMAL;
}
#ifdef DEBUG_ICON_VIEW
gdk_draw_rectangle (drawable,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
x, y,
item->width, item->height);
#endif
if (item->selected)
{
gtk_paint_flat_box (GTK_WIDGET (icon_view)->style,
(GdkWindow *) drawable,
GTK_STATE_SELECTED,
GTK_SHADOW_NONE,
area,
GTK_WIDGET (icon_view),
"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 (!info->cell->visible)
continue;
gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
#ifdef DEBUG_ICON_VIEW
gdk_draw_rectangle (drawable,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
x - item->x + cell_area.x,
y - item->y + cell_area.y,
cell_area.width, cell_area.height);
gtk_icon_view_get_cell_box (icon_view, item, info, &box);
gdk_draw_rectangle (drawable,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
x - item->x + box.x,
y - item->y + box.y,
box.width, box.height);
#endif
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,
GTK_WIDGET (icon_view),
&cell_area, &cell_area, area, flags);
}
if (draw_focus &&
gtk_widget_has_focus (GTK_WIDGET (icon_view)) &&
item == icon_view->priv->cursor_item)
{
for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (!info->cell->visible)
continue;
/* If found a editable/activatable cell, draw focus on it. */
if (icon_view->priv->cursor_cell < 0 &&
info->cell->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 (GTK_WIDGET (icon_view)->style,
drawable,
GTK_STATE_NORMAL,
area,
GTK_WIDGET (icon_view),
"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 (GTK_WIDGET (icon_view)->style,
drawable,
GTK_STATE_NORMAL,
area,
GTK_WIDGET (icon_view),
"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 (icon_view)->style->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 (!info->cell->visible)
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->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++)
{
GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
continue;
if (!info->cell->visible)
continue;
if (info->cell->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;
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;
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)
{
gtk_widget_error_bell (GTK_WIDGET (icon_view));
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;
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 = 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)
{
gtk_widget_error_bell (GTK_WIDGET (icon_view));
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;
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);
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 (GTK_WIDGET (icon_view)))
{
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)
{
gint x, y;
gint focus_width;
gfloat offset;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
NULL);
gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
offset = y + item->y - focus_width -
row_align * (GTK_WIDGET (icon_view)->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 * (GTK_WIDGET (icon_view)->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)
{
gint x, y, width, height;
gint focus_width;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"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);
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 > GTK_WIDGET (icon_view)->allocation.height)
gtk_adjustment_set_value (icon_view->priv->vadjustment,
icon_view->priv->vadjustment->value + y + item->y + item->height
+ focus_width - GTK_WIDGET (icon_view)->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 > GTK_WIDGET (icon_view)->allocation.width)
gtk_adjustment_set_value (icon_view->priv->hadjustment,
icon_view->priv->hadjustment->value + x + item->x + item->width
+ focus_width - GTK_WIDGET (icon_view)->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: (allow-none): a pointer to receive a #GtkTreeModel or %NULL
* @path: (allow-none): a pointer to receive a #GtkTreePath or %NULL
* @iter: (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 funcion 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->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->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_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_orientation:
* @icon_view: a #GtkIconView
* @orientation: the relative position of texts and icons
*
* Sets the ::orientation property which determines whether the labels
* are drawn beside the icons instead of below.
*
* Since: 2.6
**/
void
gtk_icon_view_set_orientation (GtkIconView *icon_view,
GtkOrientation orientation)
{
g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
if (icon_view->priv->orientation != orientation)
{
icon_view->priv->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), "orientation");
}
}
/**
* gtk_icon_view_get_orientation:
* @icon_view: a #GtkIconView
*
* Returns the value of the ::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_orientation (GtkIconView *icon_view)
{
g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view),
GTK_ORIENTATION_VERTICAL);
return icon_view->priv->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)
{
gint px, py, x, y, width, height;
gint hoffset, voffset;
gdk_window_get_pointer (GTK_WIDGET (icon_view)->window, &px, &py, NULL);
gdk_window_get_geometry (GTK_WIDGET (icon_view)->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, &widget->style->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)
{
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;
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 = item->widget->allocation.width;
visible_rect.height = item->widget->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 (accessible)->widget;
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 (accessible)->widget;
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 (view)->widget;
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 (atk_obj)->widget;
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)
{
if (accessible->widget)
{
g_signal_connect_after (accessible->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 (component)->widget;
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 (selection)->widget;
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 (selection)->widget;
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 (selection)->widget;
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 (selection)->widget;
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 (selection)->widget;
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 (selection)->widget;
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 (selection)->widget;
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);
}
#define __GTK_ICON_VIEW_C__
#include "gtkaliasdef.c"
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