/* gtkiconview.c * Copyright (C) 2002, 2004 Anders Carlsson * * 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 #include #include #include #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" #define MINIMUM_ICON_ITEM_WIDTH 100 #define ICON_TEXT_PADDING 3 #define ICON_VIEW_TOP_MARGIN 6 #define ICON_VIEW_BOTTOM_MARGIN 6 #define ICON_VIEW_LEFT_MARGIN 6 #define ICON_VIEW_RIGHT_MARGIN 6 #define ICON_VIEW_ICON_PADDING 6 #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; }; /* 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, }; /* 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); 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)); 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; } 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; 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; 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; 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 *y, gint *maximum_width, gint row) { gint focus_width, focus_pad; gint x, current_width, max_height, max_pixbuf_height; GList *items, *last_item; gint maximum_layout_width; gint col; 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_LEFT_MARGIN; current_width += ICON_VIEW_LEFT_MARGIN + ICON_VIEW_RIGHT_MARGIN; items = first_item; while (items) { GtkIconViewItem *item = items->data; gtk_icon_view_calculate_item_size (icon_view, item); current_width += MAX (item->width, MINIMUM_ICON_ITEM_WIDTH); /* Don't add padding to the first or last icon */ if (current_width > GTK_WIDGET (icon_view)->allocation.width && items != first_item) break; maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH); item->y = *y; item->x = rtl ? GTK_WIDGET (icon_view)->allocation.width - item->width - x : x; if (item->width < MINIMUM_ICON_ITEM_WIDTH) { if (rtl) item->x -= (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2; else item->x += (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2; x += (MINIMUM_ICON_ITEM_WIDTH - item->width); } if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { if (gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL) { item->layout_x = item->x + ICON_TEXT_PADDING + focus_width + focus_pad; item->pixbuf_x = item->x + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + item->layout_width; } else { item->pixbuf_x = item->x; item->layout_x = item->x + item->pixbuf_width + ICON_TEXT_PADDING + focus_width + focus_pad; } } else { item->pixbuf_x = item->x + (item->width - item->pixbuf_width) / 2; item->layout_x = item->x + (item->width - item->layout_width) / 2; } x += item->width; 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++; items = items->next; } last_item = items; *y += max_height + ICON_VIEW_ICON_PADDING; /* 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); item->layout_y = item->pixbuf_y + item->pixbuf_height + 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; if (!VALID_MODEL_AND_COLUMNS (icon_view)) return; widget = GTK_WIDGET (icon_view); icons = icon_view->priv->items; y += ICON_VIEW_TOP_MARGIN; row = 0; do { icons = gtk_icon_view_layout_single_row (icon_view, icons, &y, &maximum_width, row); row++; } while (icons != NULL); if (maximum_width != icon_view->priv->width) { icon_view->priv->width = maximum_width; } y += ICON_VIEW_BOTTOM_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 focus_width, focus_pad; gint layout_width, layout_height; gint maximum_layout_width; GdkPixbuf *pixbuf; if (item->width != -1 && item->width != -1) return; gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, "focus-padding", &focus_pad, NULL); 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; } maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_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; } else { item->layout_width = 0; item->layout_height = 0; } if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { item->width = layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + item->pixbuf_width; item->height = MAX (layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), item->pixbuf_height); } else { item->width = MAX (layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), item->pixbuf_width); item->height = layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + 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; 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, >K_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) { 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); 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->width - item->layout_width) / 2) - (MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH) - item->width) / 2, 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 (>K_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); } else { 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); } 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) { gint layout_x = item->x + (item->width - item->layout_width) / 2; /* 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 > layout_x - ICON_TEXT_PADDING && x < layout_x + item->layout_width + ICON_TEXT_PADDING * 2 && y > item->layout_y - ICON_TEXT_PADDING && y < item->layout_y + item->layout_height + ICON_TEXT_PADDING * 2)) 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; gint *inverted_order; GtkIconViewItem **item_array; icon_view = GTK_ICON_VIEW (data); length = gtk_tree_model_iter_n_children (model, NULL); inverted_order = g_new (gint, length); /* Invert the array */ for (i = 0; i < length; i++) inverted_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[inverted_order[i]] = list->data; g_free (inverted_order); for (i = 0; i < length; 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 = g_list_reverse (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_window_get_geometry (icon_view->priv->bin_window, NULL, &y, NULL, &height, NULL); 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 pixbuf_column_type, text_column_type; g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY); if (icon_view->priv->pixbuf_column != -1) { pixbuf_column_type = gtk_tree_model_get_column_type (icon_view->priv->model, icon_view->priv->pixbuf_column); g_return_if_fail (pixbuf_column_type == GDK_TYPE_PIXBUF); } if (icon_view->priv->text_column != -1) { text_column_type = gtk_tree_model_get_column_type (icon_view->priv->model, icon_view->priv->pixbuf_column); g_return_if_fail (text_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->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); } g_object_notify (G_OBJECT (icon_view), "model"); } /** * 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 path 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 #GtkTreeRowReferences. * To do this, you can use gtk_tree_row_reference_new(). * * To free the return value, use: * * g_list_foreach (list, gtk_tree_path_free, NULL); * g_list_free (list); * * * 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; } /* 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 *gtk_icon_view_item_accessible_action_names[] = { "activate", NULL }; static const gchar *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, MINIMUM_ICON_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, MINIMUM_ICON_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 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); }