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gtk2/gtk/gtkiconview.c
Matthias Clasen 32492c4be4 Queue a resize when the model is unset. (#169528, Tomislav Jonjic) 
2005-03-09  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkiconview.c (gtk_icon_view_set_model): Queue a resize
	when the model is unset.  (#169528, Tomislav Jonjic)
2005-03-09 16:09:22 +00:00

6111 lines
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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 "gtkalias.h"
#include "gtkiconview.h"
#include "gtkmarshalers.h"
#include "gtkbindings.h"
#include "gtkdnd.h"
#include "gtkmain.h"
#include "gtksignal.h"
#include "gtkintl.h"
#include "gtkaccessible.h"
#include "gtkwindow.h"
#include "gtktextbuffer.h"
#undef DEBUG_ICON_VIEW
#define ICON_TEXT_PADDING 3
#define GTK_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ICON_VIEW, GtkIconViewPrivate))
#define VALID_MODEL_AND_COLUMNS(obj) ((obj)->priv->model != NULL && \
((obj)->priv->pixbuf_column != -1 || \
(obj)->priv->text_column != -1 || \
(obj)->priv->markup_column != -1))
typedef struct
{
GtkTreeIter iter;
int index;
gint row, col;
/* Bounding boxes */
gint x, y;
gint width, height;
gint pixbuf_x, pixbuf_y;
gint pixbuf_height, pixbuf_width;
gint layout_x, layout_y;
gint layout_width, layout_height;
guint selected : 1;
guint selected_before_rubberbanding : 1;
} GtkIconViewItem;
struct _GtkIconViewPrivate
{
gint width, height;
gint text_column;
gint markup_column;
gint pixbuf_column;
GtkSelectionMode selection_mode;
GdkWindow *bin_window;
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;
guint ctrl_pressed : 1;
guint shift_pressed : 1;
GtkIconViewItem *last_single_clicked;
#ifdef DND_WORKS
/* Drag-and-drop. */
gint pressed_button;
gint press_start_x;
gint press_start_y;
#endif
/* Layout used to draw icon text */
PangoLayout *layout;
GtkOrientation orientation;
gint columns;
gint item_width;
gint spacing;
gint row_spacing;
gint column_spacing;
gint margin;
};
/* 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
};
/* GObject signals */
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 signals */
static void gtk_icon_view_destroy (GtkObject *object);
/* GtkWidget signals */
static void gtk_icon_view_realize (GtkWidget *widget);
static void gtk_icon_view_unrealize (GtkWidget *widget);
static void gtk_icon_view_map (GtkWidget *widget);
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);
/* GtkIconView signals */
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,
GtkIconViewItem *item,
GdkRectangle *area);
static void gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
GdkRectangle *area);
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);
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 (GtkIconViewItem *item,
gint x,
gint y,
gint width,
gint height);
#ifdef DND_WORKS
static gboolean gtk_icon_view_maybe_begin_dragging_items (GtkIconView *icon_view,
GdkEventMotion *event);
#endif
static gboolean gtk_icon_view_unselect_all_internal (GtkIconView *icon_view);
static void gtk_icon_view_calculate_item_size (GtkIconView *icon_view,
GtkIconViewItem *item,
gint item_width);
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 GdkPixbuf *gtk_icon_view_get_item_icon (GtkIconView *icon_view,
GtkIconViewItem *item);
static void gtk_icon_view_update_item_text (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_pos (GtkIconView *icon_view,
gint x,
gint y);
/* Accessibility Support */
static AtkObject *gtk_icon_view_get_accessible (GtkWidget *widget);
static GtkContainerClass *parent_class = NULL;
static guint icon_view_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GtkIconView, gtk_icon_view, GTK_TYPE_CONTAINER);
static void
gtk_icon_view_class_init (GtkIconViewClass *klass)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
parent_class = g_type_class_peek_parent (klass);
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;
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->map = gtk_icon_view_map;
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->get_accessible = gtk_icon_view_get_accessible;
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,
G_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,
G_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,
G_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,
G_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,
G_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,
G_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,
G_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,
G_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,
G_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 column"),
0, G_MAXINT, 6,
G_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,
G_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,
G_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,
G_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,
G_PARAM_READABLE));
/* Signals */
widget_class->set_scroll_adjustments_signal =
g_signal_new ("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);
icon_view_signals[ITEM_ACTIVATED] =
g_signal_new ("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);
icon_view_signals[SELECTION_CHANGED] =
g_signal_new ("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);
icon_view_signals[SELECT_ALL] =
g_signal_new ("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);
icon_view_signals[UNSELECT_ALL] =
g_signal_new ("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);
icon_view_signals[SELECT_CURSOR_ITEM] =
g_signal_new ("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);
icon_view_signals[TOGGLE_CURSOR_ITEM] =
g_signal_new ("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);
icon_view_signals[ACTIVATE_CURSOR_ITEM] =
g_signal_new ("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);
icon_view_signals[MOVE_CURSOR] =
g_signal_new ("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, 0, "select_cursor_item", 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_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_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;
#ifdef DND_WORKS
icon_view->priv->pressed_button = -1;
icon_view->priv->press_start_x = -1;
icon_view->priv->press_start_y = -1;
#endif
icon_view->priv->text_column = -1;
icon_view->priv->markup_column = -1;
icon_view->priv->pixbuf_column = -1;
icon_view->priv->layout = gtk_widget_create_pango_layout (GTK_WIDGET (icon_view), NULL);
pango_layout_set_wrap (icon_view->priv->layout, PANGO_WRAP_WORD_CHAR);
GTK_WIDGET_SET_FLAGS (icon_view, GTK_CAN_FOCUS);
gtk_icon_view_set_adjustments (icon_view, NULL, NULL);
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;
}
static void
gtk_icon_view_destroy (GtkObject *object)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (object);
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);
if (icon_view->priv->scroll_timeout_id != 0)
g_source_remove (icon_view->priv->scroll_timeout_id);
(GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/* GObject methods */
static void
gtk_icon_view_finalize (GObject *object)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (object);
g_object_unref (icon_view->priv->layout);
(G_OBJECT_CLASS (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;
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;
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_FLAGS (widget, GTK_REALIZED);
/* 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_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_set_background (widget->window, &widget->style->base[widget->state]);
}
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;
/* GtkWidget::unrealize destroys children and widget->window */
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_icon_view_map (GtkWidget *widget)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
gdk_window_show (icon_view->priv->bin_window);
gdk_window_show (widget->window);
}
static void
gtk_icon_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkIconView *icon_view;
icon_view = GTK_ICON_VIEW (widget);
requisition->width = icon_view->priv->width;
requisition->height = icon_view->priv->height;
}
static void
gtk_icon_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkIconView *icon_view;
widget->allocation = *allocation;
icon_view = GTK_ICON_VIEW (widget);
if (GTK_WIDGET_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));
}
icon_view->priv->hadjustment->page_size = allocation->width;
icon_view->priv->hadjustment->page_increment = allocation->width * 0.9;
icon_view->priv->hadjustment->step_increment = allocation->width * 0.1;
icon_view->priv->hadjustment->lower = 0;
icon_view->priv->hadjustment->upper = MAX (allocation->width, icon_view->priv->width);
gtk_adjustment_changed (icon_view->priv->hadjustment);
icon_view->priv->vadjustment->page_size = allocation->height;
icon_view->priv->vadjustment->page_increment = allocation->height * 0.9;
icon_view->priv->vadjustment->step_increment = allocation->width * 0.1;
icon_view->priv->vadjustment->lower = 0;
icon_view->priv->vadjustment->upper = MAX (allocation->height, icon_view->priv->height);
gtk_adjustment_changed (icon_view->priv->vadjustment);
gtk_icon_view_layout (icon_view);
}
static gboolean
gtk_icon_view_expose (GtkWidget *widget,
GdkEventExpose *expose)
{
GtkIconView *icon_view;
GList *icons;
icon_view = GTK_ICON_VIEW (widget);
if (expose->window != icon_view->priv->bin_window)
return FALSE;
for (icons = icon_view->priv->items; icons; icons = icons->next) {
GtkIconViewItem *item = icons->data;
GdkRectangle item_rectangle;
item_rectangle.x = item->x;
item_rectangle.y = item->y;
item_rectangle.width = item->width;
item_rectangle.height = item->height;
if (gdk_region_rect_in (expose->region, &item_rectangle) == GDK_OVERLAP_RECTANGLE_OUT)
continue;
#ifdef DEBUG_ICON_VIEW
gdk_draw_rectangle (icon_view->priv->bin_window,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
item->x, item->y,
item->width, item->height);
gdk_draw_rectangle (icon_view->priv->bin_window,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
item->pixbuf_x, item->pixbuf_y,
item->pixbuf_width, item->pixbuf_height);
gdk_draw_rectangle (icon_view->priv->bin_window,
GTK_WIDGET (icon_view)->style->black_gc,
FALSE,
item->layout_x, item->layout_y,
item->layout_width, item->layout_height);
#endif
gtk_icon_view_paint_item (icon_view, item, &expose->area);
}
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, &rectangles[n_rectangles]);
g_free (rectangles);
}
return TRUE;
}
static gboolean
scroll_timeout (gpointer data)
{
GtkIconView *icon_view;
gdouble value;
GDK_THREADS_ENTER ();
icon_view = data;
value = MIN (icon_view->priv->vadjustment->value +
icon_view->priv->scroll_value_diff,
icon_view->priv->vadjustment->upper -
icon_view->priv->vadjustment->page_size);
gtk_adjustment_set_value (icon_view->priv->vadjustment,
value);
gtk_icon_view_update_rubberband (icon_view);
GDK_THREADS_LEAVE ();
return TRUE;
}
static gboolean
gtk_icon_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkIconView *icon_view;
gint abs_y;
icon_view = GTK_ICON_VIEW (widget);
#ifdef DND_WORKS
gtk_icon_view_maybe_begin_dragging_items (icon_view, event);
#endif
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 (icon_view->priv->scroll_timeout_id == 0)
icon_view->priv->scroll_timeout_id = g_timeout_add (30, scroll_timeout, icon_view);
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;
}
else if (icon_view->priv->scroll_timeout_id != 0)
{
g_source_remove (icon_view->priv->scroll_timeout_id);
icon_view->priv->scroll_timeout_id = 0;
}
}
return TRUE;
}
static gboolean
gtk_icon_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkIconView *icon_view;
GtkIconViewItem *item;
gboolean dirty = FALSE;
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_pos (icon_view,
event->x, event->y);
if (item != NULL)
{
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);
}
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);
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
{
if (!item->selected)
{
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);
icon_view->priv->anchor_item = item;
}
#ifdef DND_WORKS
/* 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;
}
#endif
if (!icon_view->priv->last_single_clicked)
icon_view->priv->last_single_clicked = item;
}
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);
}
}
if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
{
item = gtk_icon_view_get_item_at_pos (icon_view,
event->x, event->y);
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;
}
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);
#ifdef DND_WORKS
if (icon_view->priv->pressed_button == event->button)
icon_view->priv->pressed_button = -1;
#endif
gtk_icon_view_stop_rubberbanding (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;
}
return TRUE;
}
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 (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 (GtkIconViewItem *item,
gint x,
gint y,
gint width,
gint height)
{
/* First try the pixbuf */
if (MIN (x + width, item->pixbuf_x + item->pixbuf_width) - MAX (x, item->pixbuf_x) > 0 &&
MIN (y + height, item->pixbuf_y + item->pixbuf_height) - MAX (y, item->pixbuf_y) > 0)
return TRUE;
/* Then try the text */
if (MIN (x + width, item->layout_x + item->layout_width) - MAX (x, item->layout_x) > 0 &&
MIN (y + height, item->layout_y + item->layout_height) - MAX (y, item->layout_y) > 0)
return TRUE;
return FALSE;
}
#ifdef DND_WORKS
static gboolean
gtk_icon_view_maybe_begin_dragging_items (GtkIconView *icon_view,
GdkEventMotion *event)
{
gboolean retval = FALSE;
gint button;
if (icon_view->priv->pressed_button < 0)
return retval;
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))
return retval;
button = icon_view->priv->pressed_button;
icon_view->priv->pressed_button = -1;
{
static GtkTargetEntry row_targets[] = {
{ "GTK_ICON_VIEW_ITEMS", GTK_TARGET_SAME_APP, 0 }
};
GtkTargetList *target_list;
GdkDragContext *context;
GtkIconViewItem *item;
retval = TRUE;
target_list = gtk_target_list_new (row_targets, G_N_ELEMENTS (row_targets));
context = gtk_drag_begin (GTK_WIDGET (icon_view),
target_list, GDK_ACTION_MOVE,
button,
(GdkEvent *)event);
item = gtk_icon_view_get_item_at_pos (icon_view,
icon_view->priv->press_start_x,
icon_view->priv->press_start_y);
g_assert (item != NULL);
gtk_drag_set_icon_pixbuf (context, gtk_icon_view_get_item_icon (icon_view, item),
event->x - item->x,
event->y - item->y);
}
return retval;
}
#endif
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);
}
}
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 (icon_view->priv->hadjustment);
gtk_object_sink (GTK_OBJECT (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 (icon_view->priv->vadjustment);
gtk_object_sink (GTK_OBJECT (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;
if (!icon_view->priv->cursor_item)
return FALSE;
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_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_REALIZED (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, focus_pad;
gint x, current_width, max_height, max_pixbuf_height;
GList *items, *last_item;
gint col;
gint colspan;
gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
x = 0;
col = 0;
max_height = 0;
max_pixbuf_height = 0;
items = first_item;
current_width = 0;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
x += icon_view->priv->margin;
current_width += 2 * icon_view->priv->margin;
items = first_item;
while (items)
{
GtkIconViewItem *item = items->data;
gtk_icon_view_calculate_item_size (icon_view, item, item_width);
colspan = 1 + (item->width - 1) / (item_width + icon_view->priv->column_spacing);
current_width += colspan * (item_width + icon_view->priv->column_spacing);
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;
}
item->y = *y;
item->x = rtl ? GTK_WIDGET (icon_view)->allocation.width - MAX (item_width, item->width) - x : x;
if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
if (rtl)
{
item->layout_x = item->x + ICON_TEXT_PADDING + focus_width + focus_pad;
if (icon_view->priv->text_column != -1 ||
icon_view->priv->markup_column != -1)
item->pixbuf_x = item->x + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + icon_view->priv->spacing + item->layout_width;
else
item->pixbuf_x = item->x;
}
else
{
item->pixbuf_x = item->x;
if (icon_view->priv->pixbuf_column != -1)
item->layout_x = item->x + item->pixbuf_width + icon_view->priv->spacing + ICON_TEXT_PADDING + focus_width + focus_pad;
else
item->layout_x = item->x + ICON_TEXT_PADDING + focus_width + focus_pad;
}
}
else
{
if (item->width < colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing)
item->x += (colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing - item->width) / 2;
item->pixbuf_x = item->x + (item->width - item->pixbuf_width) / 2;
item->layout_x = item->x + (item->width - item->layout_width) / 2;
}
x = current_width - icon_view->priv->margin;
max_height = MAX (max_height, item->height);
max_pixbuf_height = MAX (max_pixbuf_height, item->pixbuf_height);
if (current_width > *maximum_width)
*maximum_width = current_width;
item->row = row;
item->col = col;
col += colspan;
items = items->next;
}
last_item = items;
*y += max_height + icon_view->priv->row_spacing;
/* 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 (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
item->pixbuf_y = item->y;
item->layout_y = item->y + ICON_TEXT_PADDING + focus_width + focus_pad;
}
else
{
item->pixbuf_y = item->y + (max_pixbuf_height - item->pixbuf_height);
if (icon_view->priv->pixbuf_column != -1)
item->layout_y = item->pixbuf_y + item->pixbuf_height + icon_view->priv->spacing + ICON_TEXT_PADDING + focus_width + focus_pad;
else
item->layout_y = item->y + ICON_TEXT_PADDING + focus_width + focus_pad;
}
/* Update the bounding box */
item->y = item->pixbuf_y;
/* We may want to readjust the new y coordinate. */
if (item->y + item->height > *y)
*y = item->y + item->height;
if (rtl)
item->col = col - 1 - item->col;
}
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 (!VALID_MODEL_AND_COLUMNS (icon_view))
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, -1);
item_width = MAX (item_width, item->width);
gtk_icon_view_item_invalidate_size (item);
}
}
icons = icon_view->priv->items;
y += icon_view->priv->margin;
row = 0;
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 (GTK_WIDGET_REALIZED (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->layout_idle_id != 0)
{
g_source_remove (icon_view->priv->layout_idle_id);
icon_view->priv->layout_idle_id = 0;
}
gtk_widget_queue_draw (GTK_WIDGET (icon_view));
}
/* Updates the pango layout and calculates the size */
static void
gtk_icon_view_calculate_item_size (GtkIconView *icon_view,
GtkIconViewItem *item,
gint item_width)
{
gint focus_width, focus_pad;
gint layout_width, layout_height;
gint maximum_layout_width;
gint spacing, padding;
gint colspan;
GdkPixbuf *pixbuf;
if (item->width != -1 && item->height != -1)
return;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
spacing = icon_view->priv->spacing;
if (icon_view->priv->pixbuf_column != -1)
{
pixbuf = gtk_icon_view_get_item_icon (icon_view, item);
item->pixbuf_width = gdk_pixbuf_get_width (pixbuf);
item->pixbuf_height = gdk_pixbuf_get_height (pixbuf);
g_object_unref (pixbuf);
}
else
{
item->pixbuf_width = 0;
item->pixbuf_height = 0;
spacing = 0;
}
if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
item_width > 0)
{
colspan = item->pixbuf_width / item_width + 1;
maximum_layout_width = MAX (colspan * item_width - item->pixbuf_width - icon_view->priv->spacing - 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), 50);
}
else
maximum_layout_width = MAX (item_width, item->pixbuf_width);
if (icon_view->priv->markup_column != -1 ||
icon_view->priv->text_column != -1)
{
gtk_icon_view_update_item_text (icon_view, item);
pango_layout_set_alignment (icon_view->priv->layout, PANGO_ALIGN_CENTER);
pango_layout_set_width (icon_view->priv->layout, maximum_layout_width * PANGO_SCALE);
pango_layout_get_pixel_size (icon_view->priv->layout, &layout_width, &layout_height);
item->layout_width = layout_width;
item->layout_height = layout_height;
padding = 2 * (ICON_TEXT_PADDING + focus_width + focus_pad);
}
else
{
item->layout_width = 0;
item->layout_height = 0;
spacing = 0;
padding = 0;
}
if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
item->width = item->layout_width + padding + spacing + item->pixbuf_width;
item->height = MAX (item->layout_height + padding, item->pixbuf_height);
}
else
{
item->width = MAX (item->layout_width + padding, item->pixbuf_width);
item->height = item->layout_height + padding + spacing + item->pixbuf_height;
}
}
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 GdkPixbuf *
create_colorized_pixbuf (GdkPixbuf *src, GdkColor *new_color)
{
gint i, j;
gint width, height, has_alpha, src_row_stride, dst_row_stride;
gint red_value, green_value, blue_value;
guchar *target_pixels;
guchar *original_pixels;
guchar *pixsrc;
guchar *pixdest;
GdkPixbuf *dest;
red_value = new_color->red / 255.0;
green_value = new_color->green / 255.0;
blue_value = new_color->blue / 255.0;
dest = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (src),
gdk_pixbuf_get_has_alpha (src),
gdk_pixbuf_get_bits_per_sample (src),
gdk_pixbuf_get_width (src),
gdk_pixbuf_get_height (src));
has_alpha = gdk_pixbuf_get_has_alpha (src);
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
src_row_stride = gdk_pixbuf_get_rowstride (src);
dst_row_stride = gdk_pixbuf_get_rowstride (dest);
target_pixels = gdk_pixbuf_get_pixels (dest);
original_pixels = gdk_pixbuf_get_pixels (src);
for (i = 0; i < height; i++) {
pixdest = target_pixels + i*dst_row_stride;
pixsrc = original_pixels + i*src_row_stride;
for (j = 0; j < width; j++) {
*pixdest++ = (*pixsrc++ * red_value) >> 8;
*pixdest++ = (*pixsrc++ * green_value) >> 8;
*pixdest++ = (*pixsrc++ * blue_value) >> 8;
if (has_alpha) {
*pixdest++ = *pixsrc++;
}
}
}
return dest;
}
static void
gtk_icon_view_paint_item (GtkIconView *icon_view,
GtkIconViewItem *item,
GdkRectangle *area)
{
gint focus_width, focus_pad;
GdkPixbuf *pixbuf, *tmp;
GtkStateType state;
gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
if (!VALID_MODEL_AND_COLUMNS (icon_view))
return;
gtk_widget_style_get (GTK_WIDGET (icon_view),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
if (GTK_WIDGET_HAS_FOCUS (icon_view))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
if (icon_view->priv->pixbuf_column != -1)
{
tmp = gtk_icon_view_get_item_icon (icon_view, item);
if (item->selected)
{
pixbuf = create_colorized_pixbuf (tmp,
&GTK_WIDGET (icon_view)->style->base[state]);
g_object_unref (tmp);
}
else
pixbuf = tmp;
gdk_draw_pixbuf (icon_view->priv->bin_window, NULL, pixbuf,
0, 0,
item->pixbuf_x, item->pixbuf_y,
item->pixbuf_width, item->pixbuf_height,
GDK_RGB_DITHER_NORMAL,
item->pixbuf_width, item->pixbuf_height);
g_object_unref (pixbuf);
}
if (icon_view->priv->text_column != -1 ||
icon_view->priv->markup_column != -1)
{
if (item->selected)
{
gdk_draw_rectangle (icon_view->priv->bin_window,
GTK_WIDGET (icon_view)->style->base_gc[state],
TRUE,
item->layout_x - ICON_TEXT_PADDING,
item->layout_y - ICON_TEXT_PADDING,
item->layout_width + 2 * ICON_TEXT_PADDING,
item->layout_height + 2 * ICON_TEXT_PADDING);
}
gtk_icon_view_update_item_text (icon_view, item);
pango_layout_set_alignment (icon_view->priv->layout, rtl ? PANGO_ALIGN_RIGHT: PANGO_ALIGN_LEFT);
pango_layout_set_width (icon_view->priv->layout, item->layout_width * PANGO_SCALE);
gtk_paint_layout (GTK_WIDGET (icon_view)->style,
icon_view->priv->bin_window,
item->selected ? state : GTK_STATE_NORMAL,
TRUE, area, GTK_WIDGET (icon_view), "icon_view",
item->layout_x,
item->layout_y,
icon_view->priv->layout);
if (GTK_WIDGET_HAS_FOCUS (icon_view) &&
item == icon_view->priv->cursor_item)
gtk_paint_focus (GTK_WIDGET (icon_view)->style,
icon_view->priv->bin_window,
GTK_STATE_NORMAL,
area,
GTK_WIDGET (icon_view),
"icon_view",
item->layout_x - ICON_TEXT_PADDING - focus_width - focus_pad,
item->layout_y - ICON_TEXT_PADDING - focus_width - focus_pad,
item->layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad),
item->layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad));
}
}
static guint32
gtk_gdk_color_to_rgb (const GdkColor *color)
{
guint32 result;
result = (0xff0000 | (color->red & 0xff00));
result <<= 8;
result |= ((color->green & 0xff00) | (color->blue >> 8));
return result;
}
static void
gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
GdkRectangle *area)
{
GdkRectangle rect;
GdkPixbuf *pixbuf;
GdkGC *gc;
GdkRectangle rubber_rect;
GdkColor *fill_color_gdk;
guint fill_color;
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]);
}
fill_color = gtk_gdk_color_to_rgb (fill_color_gdk) << 8 | fill_color_alpha;
if (!gdk_draw_rectangle_alpha_libgtk_only (icon_view->priv->bin_window,
rect.x, rect.y, rect.width, rect.height,
fill_color_gdk,
fill_color_alpha << 8 | fill_color_alpha))
{
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, rect.width, rect.height);
gdk_pixbuf_fill (pixbuf, fill_color);
gdk_draw_pixbuf (icon_view->priv->bin_window, NULL, pixbuf,
0, 0,
rect.x,rect.y,
rect.width, rect.height,
GDK_RGB_DITHER_NONE,
0, 0);
g_object_unref (pixbuf);
}
gc = gdk_gc_new (icon_view->priv->bin_window);
gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
gdk_gc_set_clip_rectangle (gc, &rect);
gdk_draw_rectangle (icon_view->priv->bin_window,
gc, FALSE,
rubber_rect.x, rubber_rect.y,
rubber_rect.width - 1, rubber_rect.height - 1);
gdk_color_free (fill_color_gdk);
g_object_unref (gc);
}
static void
gtk_icon_view_queue_draw_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
GdkRectangle rect;
rect.x = item->x;
rect.y = item->y;
rect.width = item->width;
rect.height = item->height;
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;
GDK_THREADS_ENTER ();
icon_view = GTK_ICON_VIEW (user_data);
icon_view->priv->layout_idle_id = 0;
gtk_icon_view_layout (icon_view);
GDK_THREADS_LEAVE();
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 = g_idle_add (layout_callback, icon_view);
}
static void
gtk_icon_view_set_cursor_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
AtkObject *obj;
AtkObject *item_obj;
if (icon_view->priv->cursor_item == item)
return;
if (icon_view->priv->cursor_item != NULL)
gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
icon_view->priv->cursor_item = item;
gtk_icon_view_queue_draw_item (icon_view, item);
/* Notify that accessible focus object has changed */
obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
item_obj = atk_object_ref_accessible_child (obj, item->index);
if (item_obj != NULL)
{
atk_focus_tracker_notify (item_obj);
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);
}
static void
gtk_icon_view_update_item_text (GtkIconView *icon_view,
GtkIconViewItem *item)
{
gboolean iters_persist;
GtkTreeIter iter;
GtkTreePath *path;
gchar *text;
iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
if (!iters_persist)
{
path = gtk_tree_path_new_from_indices (item->index, -1);
gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
gtk_tree_path_free (path);
}
else
iter = item->iter;
if (icon_view->priv->markup_column != -1)
{
gtk_tree_model_get (icon_view->priv->model, &iter,
icon_view->priv->markup_column, &text,
-1);
pango_layout_set_markup (icon_view->priv->layout, text, -1);
g_free (text);
}
else if (icon_view->priv->text_column != -1)
{
gtk_tree_model_get (icon_view->priv->model, &iter,
icon_view->priv->text_column, &text,
-1);
pango_layout_set_text (icon_view->priv->layout, text, -1);
g_free (text);
}
else
pango_layout_set_text (icon_view->priv->layout, "", -1);
}
static GdkPixbuf *
gtk_icon_view_get_item_icon (GtkIconView *icon_view,
GtkIconViewItem *item)
{
gboolean iters_persist;
GtkTreeIter iter;
GtkTreePath *path;
GdkPixbuf *pixbuf;
g_return_val_if_fail (item != NULL, NULL);
iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
if (!iters_persist)
{
path = gtk_tree_path_new_from_indices (item->index, -1);
gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
gtk_tree_path_free (path);
}
else
iter = item->iter;
gtk_tree_model_get (icon_view->priv->model, &iter,
icon_view->priv->pixbuf_column, &pixbuf,
-1);
return pixbuf;
}
static GtkIconViewItem *
gtk_icon_view_get_item_at_pos (GtkIconView *icon_view,
gint x,
gint y)
{
GList *items;
for (items = icon_view->priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
if (x > item->x && x < item->x + item->width &&
y > item->y && y < item->y + item->height)
{
/* Check if the mouse is inside the icon or the label */
if ((x > item->pixbuf_x && x < item->pixbuf_x + item->pixbuf_width &&
y > item->pixbuf_y && y < item->pixbuf_y + item->pixbuf_height) ||
(x > item->layout_x - ICON_TEXT_PADDING &&
x < item->layout_x + item->layout_width + ICON_TEXT_PADDING &&
y > item->layout_y - ICON_TEXT_PADDING &&
y < item->layout_y + item->layout_height + ICON_TEXT_PADDING))
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_queue_draw_item (icon_view, item);
g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}
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;
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);
index = gtk_tree_path_get_indices(path)[0];
item = g_list_nth (icon_view->priv->items, index)->data;
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 length, 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;
length = gtk_tree_model_iter_n_children (model, NULL);
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);
}
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;
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);
gtk_icon_view_queue_layout (icon_view);
verify_items (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);
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;
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,
"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_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;
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 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_queue_draw_item (icon_view, item);
}
}
return dirty;
}
static void
gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view,
gint count)
{
GtkIconViewItem *item;
gboolean dirty = FALSE;
if (!GTK_WIDGET_HAS_FOCUS (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 (icon_view,
icon_view->priv->cursor_item,
count, 0);
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);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item);
}
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 (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)
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);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item);
}
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;
gboolean dirty = FALSE;
if (!GTK_WIDGET_HAS_FOCUS (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 (icon_view,
icon_view->priv->cursor_item,
0, count);
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);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
gtk_icon_view_unselect_all_internal (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item);
}
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 (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)
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);
if (!icon_view->priv->ctrl_pressed &&
icon_view->priv->selection_mode != GTK_SELECTION_NONE)
{
gtk_icon_view_unselect_all (icon_view);
dirty = gtk_icon_view_select_all_between (icon_view,
icon_view->priv->anchor_item,
item);
}
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_scroll_to_item (GtkIconView *icon_view,
GtkIconViewItem *item)
{
gint y, height;
gdouble value;
gdk_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window), NULL, &height);
gdk_window_get_position (icon_view->priv->bin_window, NULL, &y);
if (y + item->y < 0)
{
value = icon_view->priv->vadjustment->value + y + item->y;
gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
}
else if (y + item->y + item->height > GTK_WIDGET (icon_view)->allocation.height)
{
value = icon_view->priv->vadjustment->value + y + item->y + item->height
- GTK_WIDGET (icon_view)->allocation.height;
gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
}
}
/* 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_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 widget 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_pos (icon_view, x, y);
if (!item)
return NULL;
path = gtk_tree_path_new_from_indices (item->index, -1);
return path;
}
/**
* 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: 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 (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_REALIZED (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;
}
/**
* gtk_icon_view_set_text_column:
* @icon_view: A #GtkIconView.
* @column: A column in the currently used model.
*
* 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_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.
*
* 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_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.
*
* 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_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;
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 (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0])->data;
if (!item)
return;
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 (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0])->data;
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:
* <informalexample><programlisting>
* g_list_foreach (list, gtk_tree_path_free, NULL);
* g_list_free (list);
* </programlisting></informalexample>
*
* Return value: 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 @icon 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 (icon_view->priv->items,
gtk_tree_path_get_indices(path)[0])->data;
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (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;
}
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_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "columns");
}
}
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;
}
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "item-width");
}
}
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;
}
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "spacing");
}
}
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;
}
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "row-spacing");
}
}
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;
}
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "column-spacing");
}
}
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;
}
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_invalidate_sizes (icon_view);
gtk_icon_view_queue_layout (icon_view);
g_object_notify (G_OBJECT (icon_view), "margin");
}
}
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;
}
/* 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;
GDK_THREADS_ENTER ();
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);
}
GDK_THREADS_LEAVE ();
return FALSE;
}
static gboolean
gtk_icon_view_item_accessible_action_do_action (AtkAction *action,
gint i)
{
GtkIconViewItemAccessible *item;
GtkIconView *icon_view;
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;
icon_view = GTK_ICON_VIEW (item->widget);
switch (i)
{
case ACTION_ACTIVATE:
if (!item->action_idle_handler)
item->action_idle_handler = g_idle_add (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);
if (item->action_descriptions[i])
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 (item->image_description);
return TRUE;
}
static void
gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image,
gint *width,
gint *height)
{
GtkIconViewItemAccessible *item;
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;
*width = item->item->pixbuf_width;
*height = item->item->pixbuf_height;
}
static void
gtk_icon_view_item_accessible_image_get_image_position (AtkImage *image,
gint *x,
gint *y,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
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);
*x+= item->item->pixbuf_x - item->item->x;
*y+= item->item->pixbuf_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;
}
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 (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 (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 (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 (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);
}
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;
GtkIconView *icon_view;
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:
icon_view = GTK_ICON_VIEW (item->widget);
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);
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;
GtkIconView *icon_view;
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:
icon_view = GTK_ICON_VIEW (item->widget);
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);
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;
GtkIconView *icon_view;
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:
icon_view = GTK_ICON_VIEW (item->widget);
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);
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;
GtkIconView *icon_view;
PangoRectangle char_rect;
const gchar *item_text;
gint index;
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;
icon_view = GTK_ICON_VIEW (item->widget);
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;
}
static gint
gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
GtkIconView *icon_view;
const gchar *item_text;
gint index;
gint offset;
gint l_x, l_y;
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;
icon_view = GTK_ICON_VIEW (item->widget);
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);
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);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget));
if (GTK_WIDGET_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);
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)
{
static 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 */
};
static const GInterfaceInfo atk_component_info =
{
(GInterfaceInitFunc) atk_component_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
static const GInterfaceInfo atk_action_info =
{
(GInterfaceInitFunc) atk_action_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
static const GInterfaceInfo atk_image_info =
{
(GInterfaceInitFunc) atk_image_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
static const GInterfaceInfo atk_text_info =
{
(GInterfaceInitFunc) atk_text_item_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
type = g_type_register_static (ATK_TYPE_OBJECT,
"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)
{
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_update_item_text (icon_view, item);
gtk_text_buffer_set_text (a11y_item->text_buffer,
pango_layout_get_text (icon_view->priv->layout),
-1);
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;
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
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;
else
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);
if (deleted_item)
{
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;
GtkIconViewAccessible *view;
GtkIconView *icon_view;
GtkIconViewItemAccessible *item;
GList *items;
GList *tmp_list;
AtkObject *atk_obj;
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
icon_view = GTK_ICON_VIEW (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);
info->index = new_order[info->index];
tmp_list = g_list_nth (icon_view->priv->items, info->index);
item->item = tmp_list->data;
items = items->next;
}
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;
GtkIconViewAccessible *view;
GtkIconViewAccessiblePrivate *priv;
if (strcmp (pspec->name, "model") == 0)
{
widget = GTK_WIDGET (obj);
atk_obj = gtk_widget_get_accessible (widget);
view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
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_pos (icon_view, x - x_pos, y - y_pos);
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;
GList *l;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
l = g_list_nth (icon_view->priv->items, i);
if (!l)
return FALSE;
item = l->data;
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)
{
GtkWidget *widget;
GtkIconView *icon_view;
GtkIconViewItem *item;
GList *l;
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;
GList *l;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
return FALSE;
icon_view = GTK_ICON_VIEW (widget);
l = g_list_nth (icon_view->priv->items, i);
if (!l)
return FALSE;
item = l->data;
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)
{
static 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 */
};
static const GInterfaceInfo atk_component_info =
{
(GInterfaceInitFunc) atk_component_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
static 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,
"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)
{
static 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,
"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 (parent_class)->get_accessible (widget);
}
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