--- /dev/null
+/* eggiconlist.h
+ * Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "eggiconlist.h"
+
+#include <string.h>
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtkbindings.h>
+#include <gtk/gtkdnd.h>
+#include <gtk/gtkmain.h>
+#include <gtk/gtksignal.h>
+
+#include "eggintl.h"
+#include "eggmarshalers.h"
+
+
+#define MINIMUM_ICON_ITEM_WIDTH 100
+#define ICON_TEXT_PADDING 3
+
+#define ICON_LIST_ITEM_DATA "egg-icon-list-item-data"
+
+struct _EggIconListItem
+{
+ GObject parent;
+
+ EggIconList *icon_list;
+ char *label;
+ GdkPixbuf *icon;
+
+ GList *list;
+
+ /* 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;
+};
+
+struct _EggIconListPrivate
+{
+ gint width, height;
+
+ GtkSelectionMode selection_mode;
+
+ GdkWindow *bin_window;
+
+ GList *items;
+ GList *last_item;
+ gint item_count;
+
+ GtkAdjustment *hadjustment;
+ GtkAdjustment *vadjustment;
+
+ guint layout_idle_id;
+
+ gboolean rubberbanding;
+ gint rubberband_x1, rubberband_y1;
+ gint rubberband_x2, rubberband_y2;
+
+ EggIconListItem *cursor_item;
+
+ char *typeahead_string;
+
+ /* Sorting */
+ gboolean sorted;
+ GtkSortType sort_order;
+
+ EggIconListItemCompareFunc sort_func;
+ gpointer sort_data;
+ GDestroyNotify sort_destroy_notify;
+
+ EggIconListItem *last_single_clicked;
+
+ /* Drag-and-drop. */
+ gint pressed_button;
+ gint press_start_x;
+ gint press_start_y;
+
+ /* Layout used to draw icon text */
+ PangoLayout *layout;
+};
+
+/* Signals */
+enum
+{
+ ITEM_ACTIVATED,
+ ITEM_ADDED,
+ ITEM_REMOVED,
+ SELECTION_CHANGED,
+ SELECT_ALL,
+ UNSELECT_ALL,
+ SELECT_CURSOR_ITEM,
+ TOGGLE_CURSOR_ITEM,
+ MOVE_CURSOR,
+ LAST_SIGNAL
+};
+
+/* Properties */
+enum
+{
+ PROP_0,
+ PROP_SELECTION_MODE,
+ PROP_SORTED,
+ PROP_SORT_ORDER,
+};
+
+/* Icon List Item properties */
+enum
+{
+ PROP_ITEM_0,
+ PROP_LABEL,
+};
+
+static void egg_icon_list_class_init (EggIconListClass *klass);
+static void egg_icon_list_init (EggIconList *icon_list);
+
+/* GObject signals */
+static void egg_icon_list_finalize (GObject *object);
+static void egg_icon_list_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void egg_icon_list_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+
+/* GtkWidget signals */
+static void egg_icon_list_realize (GtkWidget *widget);
+static void egg_icon_list_unrealize (GtkWidget *widget);
+static void egg_icon_list_map (GtkWidget *widget);
+static void egg_icon_list_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void egg_icon_list_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static gboolean egg_icon_list_expose (GtkWidget *widget,
+ GdkEventExpose *expose);
+static gboolean egg_icon_list_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean egg_icon_list_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean egg_icon_list_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean egg_icon_list_key_press (GtkWidget *widget,
+ GdkEventKey *event);
+
+
+/* EggIconList signals */
+static void egg_icon_list_set_adjustments (EggIconList *icon_list,
+ GtkAdjustment *hadj,
+ GtkAdjustment *vadj);
+static void egg_icon_list_real_select_all (EggIconList *icon_list);
+static void egg_icon_list_real_unselect_all (EggIconList *icon_list);
+static void egg_icon_list_real_select_cursor_item (EggIconList *icon_list);
+static void egg_icon_list_real_toggle_cursor_item (EggIconList *icon_list);
+
+/* Internal functions */
+static void egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
+ EggIconList *icon_list);
+static void egg_icon_list_layout (EggIconList *icon_list);
+static void egg_icon_list_paint_item (EggIconList *icon_list,
+ EggIconListItem *item,
+ GdkRectangle *area);
+static void egg_icon_list_paint_rubberband (EggIconList *icon_list,
+ GdkRectangle *area);
+static void egg_icon_list_queue_draw_item (EggIconList *icon_list,
+ EggIconListItem *item);
+static void egg_icon_list_queue_layout (EggIconList *icon_list);
+static void egg_icon_list_set_cursor_item (EggIconList *icon_list,
+ EggIconListItem *item);
+static void egg_icon_list_append_typeahead_string (EggIconList *icon_list,
+ const gchar *string);
+static void egg_icon_list_select_first_matching_item (EggIconList *icon_list,
+ const char *pattern);
+static void egg_icon_list_start_rubberbanding (EggIconList *icon_list,
+ gint x,
+ gint y);
+static void egg_icon_list_stop_rubberbanding (EggIconList *icon_list);
+static void egg_icon_list_sort (EggIconList *icon_list);
+static gint egg_icon_list_sort_func (EggIconListItem *a,
+ EggIconListItem *b,
+ EggIconList *icon_list);
+static void egg_icon_list_insert_item_sorted (EggIconList *icon_list,
+ EggIconListItem *item);
+static void egg_icon_list_validate (EggIconList *icon_list);
+static void egg_icon_list_update_rubberband_selection (EggIconList *icon_list);
+static gboolean egg_icon_list_item_hit_test (EggIconListItem *item,
+ gint x,
+ gint y,
+ gint width,
+ gint height);
+static gboolean egg_icon_list_maybe_begin_dragging_items (EggIconList *icon_list,
+ GdkEventMotion *event);
+static gboolean egg_icon_list_unselect_all_internal (EggIconList *icon_list,
+ gboolean emit);
+static void egg_icon_list_calculate_item_size (EggIconList *icon_list, EggIconListItem *item);
+static void rubberbanding (gpointer data);
+
+
+/* EggIconListItem functions */
+static void egg_icon_list_item_class_init (GObjectClass *klass);
+static void egg_icon_list_item_init (EggIconListItem *item);
+static void egg_icon_list_item_finalize (GObject *object);
+static void egg_icon_list_item_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void egg_icon_list_item_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+
+
+
+static void egg_icon_list_item_invalidate_size (EggIconListItem *item);
+
+static GtkContainerClass *parent_class = NULL;
+static GObjectClass *item_parent_class = NULL;
+static guint icon_list_signals[LAST_SIGNAL] = { 0 };
+
+GType
+egg_icon_list_item_get_type (void)
+{
+ static GType object_type = 0;
+
+ if (!object_type)
+ {
+ static const GTypeInfo object_info =
+ {
+ sizeof (GObjectClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) egg_icon_list_item_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (EggIconListItem),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) egg_icon_list_item_init
+ };
+
+ object_type = g_type_register_static (G_TYPE_OBJECT, "EggIconListItem", &object_info, 0);
+ }
+
+ return object_type;
+}
+
+GType
+egg_icon_list_get_type (void)
+{
+ static GType object_type = 0;
+
+ if (!object_type)
+ {
+ static const GTypeInfo object_info =
+ {
+ sizeof (EggIconListClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) egg_icon_list_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (EggIconList),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) egg_icon_list_init
+ };
+
+ object_type = g_type_register_static (GTK_TYPE_CONTAINER, "EggIconList", &object_info, 0);
+ }
+
+ return object_type;
+}
+
+static void
+egg_icon_list_class_init (EggIconListClass *klass)
+{
+ GObjectClass *gobject_class;
+ GtkWidgetClass *widget_class;
+ GtkBindingSet *binding_set;
+
+ parent_class = g_type_class_peek_parent (klass);
+ binding_set = gtk_binding_set_by_class (klass);
+
+ gobject_class = (GObjectClass *) klass;
+ widget_class = (GtkWidgetClass *) klass;
+
+ gobject_class->finalize = egg_icon_list_finalize;
+ gobject_class->set_property = egg_icon_list_set_property;
+ gobject_class->get_property = egg_icon_list_get_property;
+
+ widget_class->realize = egg_icon_list_realize;
+ widget_class->unrealize = egg_icon_list_unrealize;
+ widget_class->map = egg_icon_list_map;
+ widget_class->size_request = egg_icon_list_size_request;
+ widget_class->size_allocate = egg_icon_list_size_allocate;
+ widget_class->expose_event = egg_icon_list_expose;
+ widget_class->motion_notify_event = egg_icon_list_motion;
+ widget_class->button_press_event = egg_icon_list_button_press;
+ widget_class->button_release_event = egg_icon_list_button_release;
+ widget_class->key_press_event = egg_icon_list_key_press;
+
+ klass->set_scroll_adjustments = egg_icon_list_set_adjustments;
+ klass->select_all = egg_icon_list_real_select_all;
+ klass->unselect_all = egg_icon_list_real_unselect_all;
+ klass->select_cursor_item = egg_icon_list_real_select_cursor_item;
+ klass->toggle_cursor_item = egg_icon_list_real_toggle_cursor_item;
+
+ /* Properties */
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTION_MODE,
+ g_param_spec_enum ("selection_mode",
+ _("Selection mode"),
+ _("The selection mode"),
+ GTK_TYPE_SELECTION_MODE,
+ GTK_SELECTION_SINGLE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SORTED,
+ g_param_spec_boolean ("sorted",
+ _("Sorted"),
+ _("Icon list is sorted"),
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_SORT_ORDER,
+ g_param_spec_enum ("sort_order",
+ _("Sort order"),
+ _("Sort direction the icon list should use"),
+ GTK_TYPE_SORT_TYPE,
+ GTK_SORT_ASCENDING,
+ G_PARAM_READABLE | G_PARAM_WRITABLE));
+
+ /* Style properties */
+#define _ICON_LIST_TOP_MARGIN 6
+#define _ICON_LIST_BOTTOM_MARGIN 6
+#define _ICON_LIST_LEFT_MARGIN 6
+#define _ICON_LIST_RIGHT_MARGIN 6
+#define _ICON_LIST_ICON_PADDING 6
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("icon_padding",
+ _("Icon padding"),
+ _("Number of pixels between icons"),
+ 0,
+ G_MAXINT,
+ _ICON_LIST_ICON_PADDING,
+ G_PARAM_READABLE));
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("top_margin",
+ _("Top margin"),
+ _("Number of pixels in top margin"),
+ 0,
+ G_MAXINT,
+ _ICON_LIST_TOP_MARGIN,
+ G_PARAM_READABLE));
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("bottom_margin",
+ _("Bottom margin"),
+ _("Number of pixels in bottom margin"),
+ 0,
+ G_MAXINT,
+ _ICON_LIST_BOTTOM_MARGIN,
+ G_PARAM_READABLE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("left_margin",
+ _("Left margin"),
+ _("Number of pixels in left margin"),
+ 0,
+ G_MAXINT,
+ _ICON_LIST_LEFT_MARGIN,
+ G_PARAM_READABLE));
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("right_margin",
+ _("Right margin"),
+ _("Number of pixels in right margin"),
+ 0,
+ G_MAXINT,
+ _ICON_LIST_RIGHT_MARGIN,
+ 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 (EggIconListClass, set_scroll_adjustments),
+ NULL, NULL,
+ _egg_marshal_VOID__OBJECT_OBJECT,
+ G_TYPE_NONE, 2,
+ GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
+
+ icon_list_signals[ITEM_ACTIVATED] =
+ g_signal_new ("item_activated",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EggIconListClass, item_activated),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ EGG_TYPE_ICON_LIST_ITEM);
+
+ icon_list_signals[SELECTION_CHANGED] =
+ g_signal_new ("selection_changed",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (EggIconListClass, selection_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ icon_list_signals[ITEM_ADDED] =
+ g_signal_new ("item_added",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EggIconListClass, item_added),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1, EGG_TYPE_ICON_LIST_ITEM);
+
+ icon_list_signals[ITEM_REMOVED] =
+ g_signal_new ("item_removed",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EggIconListClass, item_removed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1, EGG_TYPE_ICON_LIST_ITEM);
+
+ icon_list_signals[SELECT_ALL] =
+ g_signal_new ("select_all",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EggIconListClass, select_all),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ icon_list_signals[UNSELECT_ALL] =
+ g_signal_new ("unselect_all",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EggIconListClass, unselect_all),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ icon_list_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 (EggIconListClass, select_cursor_item),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ icon_list_signals[SELECT_CURSOR_ITEM] =
+ g_signal_new ("toggle_cursor_item",
+ G_TYPE_FROM_CLASS (gobject_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EggIconListClass, toggle_cursor_item),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ /* 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);
+}
+
+
+static void
+egg_icon_list_init (EggIconList *icon_list)
+{
+ icon_list->priv = g_new0 (EggIconListPrivate, 1);
+ GTK_WIDGET_SET_FLAGS (icon_list, GTK_CAN_FOCUS);
+
+ icon_list->priv->width = 0;
+ icon_list->priv->height = 0;
+ icon_list->priv->selection_mode = GTK_SELECTION_SINGLE;
+ icon_list->priv->sort_order = GTK_SORT_ASCENDING;
+ icon_list->priv->pressed_button = -1;
+ icon_list->priv->press_start_x = -1;
+ icon_list->priv->press_start_y = -1;
+ icon_list->priv->layout = gtk_widget_create_pango_layout (GTK_WIDGET (icon_list), NULL);
+
+ egg_icon_list_set_adjustments (icon_list, NULL, NULL);
+}
+
+
+/* GObject methods */
+static void
+egg_icon_list_finalize (GObject *object)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (object);
+
+ if (icon_list->priv->layout_idle_id != 0)
+ g_source_remove (icon_list->priv->layout_idle_id);
+
+ g_free (icon_list->priv);
+
+ (G_OBJECT_CLASS (parent_class)->finalize) (object);
+}
+
+
+static void
+egg_icon_list_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (object);
+
+ switch (prop_id)
+ {
+ case PROP_SELECTION_MODE:
+ egg_icon_list_set_selection_mode (icon_list, g_value_get_enum (value));
+ break;
+ case PROP_SORTED:
+ egg_icon_list_set_sorted (icon_list, g_value_get_boolean (value));
+ break;
+ case PROP_SORT_ORDER:
+ egg_icon_list_set_sort_order (icon_list, g_value_get_enum (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+egg_icon_list_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (object);
+
+ switch (prop_id)
+ {
+ case PROP_SELECTION_MODE:
+ g_value_set_enum (value, icon_list->priv->selection_mode);
+ break;
+ case PROP_SORTED:
+ g_value_set_boolean (value, icon_list->priv->sorted);
+ break;
+ case PROP_SORT_ORDER:
+ g_value_set_enum (value, icon_list->priv->sort_order);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/* GtkWidget signals */
+static void
+egg_icon_list_realize (GtkWidget *widget)
+{
+ EggIconList *icon_list;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ icon_list = EGG_ICON_LIST (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 list */
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.width = MAX (icon_list->priv->width, widget->allocation.width);
+ attributes.height = MAX (icon_list->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_list->priv->bin_window = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (icon_list->priv->bin_window, widget);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+ gdk_window_set_background (icon_list->priv->bin_window, &widget->style->base[widget->state]);
+ gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
+
+
+}
+
+static void
+egg_icon_list_unrealize (GtkWidget *widget)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ gdk_window_set_user_data (icon_list->priv->bin_window, NULL);
+ gdk_window_destroy (icon_list->priv->bin_window);
+ icon_list->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
+egg_icon_list_map (GtkWidget *widget)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+ gdk_window_show (icon_list->priv->bin_window);
+ gdk_window_show (widget->window);
+}
+
+static void
+egg_icon_list_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ requisition->width = icon_list->priv->width;
+ requisition->height = icon_list->priv->height;
+}
+
+static void
+egg_icon_list_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ EggIconList *icon_list;
+
+ widget->allocation = *allocation;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ gdk_window_move_resize (widget->window,
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+ gdk_window_resize (icon_list->priv->bin_window,
+ MAX (icon_list->priv->width, allocation->width),
+ MAX (icon_list->priv->height, allocation->height));
+ }
+
+ icon_list->priv->hadjustment->page_size = allocation->width;
+ icon_list->priv->hadjustment->page_increment = allocation->width * 0.9;
+ icon_list->priv->hadjustment->step_increment = allocation->width * 0.1;
+ icon_list->priv->hadjustment->lower = 0;
+ icon_list->priv->hadjustment->upper = MAX (allocation->width, icon_list->priv->width);
+ g_signal_emit_by_name (icon_list->priv->hadjustment, "changed");
+
+ icon_list->priv->vadjustment->page_size = allocation->height;
+ icon_list->priv->vadjustment->page_increment = allocation->height * 0.9;
+ icon_list->priv->vadjustment->step_increment = allocation->width * 0.1;
+ icon_list->priv->vadjustment->lower = 0;
+ icon_list->priv->vadjustment->upper = MAX (allocation->height, icon_list->priv->height);
+ g_signal_emit_by_name (icon_list->priv->hadjustment, "changed");
+
+ egg_icon_list_layout (icon_list);
+}
+
+static gboolean
+egg_icon_list_expose (GtkWidget *widget,
+ GdkEventExpose *expose)
+{
+ EggIconList *icon_list;
+ GList *icons;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ if (expose->window != icon_list->priv->bin_window)
+ return FALSE;
+
+ for (icons = icon_list->priv->items; icons; icons = icons->next) {
+ EggIconListItem *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;
+
+ egg_icon_list_paint_item (icon_list, item, &expose->area);
+ }
+
+ if (icon_list->priv->rubberbanding)
+ {
+ GdkRectangle *rectangles;
+ gint n_rectangles;
+
+ gdk_region_get_rectangles (expose->region,
+ &rectangles,
+ &n_rectangles);
+
+ while (n_rectangles--)
+ egg_icon_list_paint_rubberband (icon_list, &rectangles[n_rectangles]);
+
+ g_free (rectangles);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+egg_icon_list_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ egg_icon_list_maybe_begin_dragging_items (icon_list, event);
+
+ if (icon_list->priv->rubberbanding)
+ rubberbanding (widget);
+
+ return TRUE;
+}
+
+static gboolean
+egg_icon_list_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EggIconList *icon_list;
+ EggIconListItem *item;
+ gboolean dirty = FALSE;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ if (event->window != icon_list->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)
+ {
+
+ if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
+ return TRUE;
+
+ item = egg_icon_list_get_item_at_pos (icon_list,
+ event->x, event->y);
+
+ if (item != NULL)
+ {
+ if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
+ (event->state & GDK_CONTROL_MASK))
+ {
+ item->selected = !item->selected;
+ dirty = TRUE;
+ }
+ else
+ {
+ if (!item->selected)
+ {
+ egg_icon_list_unselect_all_internal (icon_list, FALSE);
+
+ item->selected = TRUE;
+ dirty = TRUE;
+ }
+ }
+
+ egg_icon_list_set_cursor_item (icon_list, item);
+ egg_icon_list_queue_draw_item (icon_list, item);
+
+ /* Save press to possibly begin a drag */
+ if (icon_list->priv->pressed_button < 0)
+ {
+ icon_list->priv->pressed_button = event->button;
+ icon_list->priv->press_start_x = event->x;
+ icon_list->priv->press_start_y = event->y;
+ }
+
+ if (!icon_list->priv->last_single_clicked)
+ icon_list->priv->last_single_clicked = item;
+ }
+ else
+ {
+ if (icon_list->priv->selection_mode != GTK_SELECTION_BROWSE &&
+ !(event->state & GDK_CONTROL_MASK))
+ {
+ dirty = egg_icon_list_unselect_all_internal (icon_list, FALSE);
+ }
+
+ if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE)
+ egg_icon_list_start_rubberbanding (icon_list, event->x, event->y);
+ }
+
+ }
+
+ if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
+ {
+ item = egg_icon_list_get_item_at_pos (icon_list,
+ event->x, event->y);
+
+ if (item && item == icon_list->priv->last_single_clicked)
+ {
+ egg_icon_list_item_activated (icon_list, item);
+ }
+
+ icon_list->priv->last_single_clicked = NULL;
+ }
+
+ if (dirty)
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+
+ return TRUE;
+}
+
+static gboolean
+egg_icon_list_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (widget);
+
+ if (icon_list->priv->pressed_button == event->button)
+ icon_list->priv->pressed_button = -1;
+
+ egg_icon_list_stop_rubberbanding (icon_list);
+
+ return TRUE;
+}
+
+
+static gboolean
+egg_icon_list_key_press (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ if ((* GTK_WIDGET_CLASS (parent_class)->key_press_event) (widget, event))
+ return TRUE;
+
+ return FALSE;
+
+ if ((event->state & (GDK_CONTROL_MASK | GDK_MOD1_MASK)) == 0)
+ egg_icon_list_append_typeahead_string (EGG_ICON_LIST (widget), event->string);
+
+ return TRUE;
+}
+
+static void
+egg_icon_list_select_first_matching_item (EggIconList *icon_list,
+ const char *pattern)
+{
+ GList *items;
+
+ if (pattern == NULL)
+ return;
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+
+ if (strncmp (pattern, item->label, strlen (pattern)) == 0)
+ {
+ egg_icon_list_select_item (icon_list, item);
+ break;
+ }
+ }
+}
+
+static void
+rubberbanding (gpointer data)
+{
+ EggIconList *icon_list;
+ gint x, y;
+ GdkRectangle old_area;
+ GdkRectangle new_area;
+ GdkRectangle common;
+ GdkRegion *common_region;
+ GdkRegion *invalid_region;
+
+ icon_list = EGG_ICON_LIST (data);
+
+ gdk_window_get_pointer (icon_list->priv->bin_window, &x, &y, NULL);
+
+ x = MAX (x, 0);
+ y = MAX (y, 0);
+
+ old_area.x = MIN (icon_list->priv->rubberband_x1,
+ icon_list->priv->rubberband_x2);
+ old_area.y = MIN (icon_list->priv->rubberband_y1,
+ icon_list->priv->rubberband_y2);
+ old_area.width = ABS (icon_list->priv->rubberband_x2 -
+ icon_list->priv->rubberband_x1) + 1;
+ old_area.height = ABS (icon_list->priv->rubberband_y2 -
+ icon_list->priv->rubberband_y1) + 1;
+
+ new_area.x = MIN (icon_list->priv->rubberband_x1, x);
+ new_area.y = MIN (icon_list->priv->rubberband_y1, y);
+ new_area.width = ABS (x - icon_list->priv->rubberband_x1) + 1;
+ new_area.height = ABS (y - icon_list->priv->rubberband_y1) + 1;
+
+ gdk_rectangle_intersect (&old_area, &new_area, &common);
+
+ /* always invalidate border */
+ if (common.width > 2)
+ {
+ common.width -= 2;
+ common.x += 1;
+ }
+
+ if (common.height > 2)
+ {
+ common.y += 1;
+ common.height -= 2;
+ }
+
+ common_region = gdk_region_rectangle (&common);
+
+ invalid_region = gdk_region_rectangle (&old_area);
+ gdk_region_union_with_rect (invalid_region, &new_area);
+ gdk_region_subtract (invalid_region, common_region);
+
+ gdk_window_invalidate_region (icon_list->priv->bin_window, invalid_region, TRUE);
+
+ gdk_region_destroy (common_region);
+ gdk_region_destroy (invalid_region);
+
+ icon_list->priv->rubberband_x2 = x;
+ icon_list->priv->rubberband_y2 = y;
+
+ egg_icon_list_update_rubberband_selection (icon_list);
+}
+
+static void
+egg_icon_list_start_rubberbanding (EggIconList *icon_list,
+ gint x,
+ gint y)
+{
+ GList *items;
+
+ g_assert (!icon_list->priv->rubberbanding);
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+
+ item->selected_before_rubberbanding = item->selected;
+ }
+
+ icon_list->priv->rubberband_x1 = x;
+ icon_list->priv->rubberband_y1 = y;
+ icon_list->priv->rubberband_x2 = x;
+ icon_list->priv->rubberband_y2 = y;
+
+ icon_list->priv->rubberbanding = TRUE;
+
+ gtk_grab_add (GTK_WIDGET (icon_list));
+}
+
+static void
+egg_icon_list_stop_rubberbanding (EggIconList *icon_list)
+{
+ if (!icon_list->priv->rubberbanding)
+ return;
+
+ icon_list->priv->rubberbanding = FALSE;
+
+ gtk_grab_remove (GTK_WIDGET (icon_list));
+
+ gtk_widget_queue_draw (GTK_WIDGET (icon_list));
+}
+
+static gint
+egg_icon_list_sort_func (EggIconListItem *a,
+ EggIconListItem *b,
+ EggIconList *icon_list)
+{
+ gint result;
+
+ result = (* icon_list->priv->sort_func) (icon_list, a, b,
+ icon_list->priv->sort_data);
+
+ if (icon_list->priv->sort_order == GTK_SORT_DESCENDING)
+ result = -result;
+
+ return result;
+}
+
+static void
+egg_icon_list_insert_item_sorted (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ GList *list;
+ GList *tmp_list = icon_list->priv->items;
+ gint cmp;
+
+ egg_icon_list_validate (icon_list);
+
+ list = g_list_alloc ();
+ item->list = list;
+ item->icon_list = icon_list;
+ list->data = item;
+
+ if (!icon_list->priv->items)
+ {
+ icon_list->priv->items = list;
+ icon_list->priv->last_item = list;
+ icon_list->priv->item_count += 1;
+
+ egg_icon_list_validate (icon_list);
+
+ return;
+ }
+
+ cmp = egg_icon_list_sort_func (item, tmp_list->data, icon_list);
+
+ while ((tmp_list->next) && (cmp > 0))
+ {
+ tmp_list = tmp_list->next;
+ cmp = egg_icon_list_sort_func (item, tmp_list->data, icon_list);
+ }
+
+ if ((!tmp_list->next) && (cmp > 0))
+ {
+ tmp_list->next = list;
+ list->prev = tmp_list;
+ icon_list->priv->last_item = list;
+ icon_list->priv->item_count += 1;
+ egg_icon_list_validate (icon_list);
+
+ return;
+ }
+
+ if (tmp_list->prev)
+ {
+ tmp_list->prev->next = list;
+ list->prev = tmp_list->prev;
+ }
+
+ list->next = tmp_list;
+ tmp_list->prev = list;
+
+ if (tmp_list == icon_list->priv->items)
+ icon_list->priv->items = list;
+
+ icon_list->priv->item_count += 1;
+ egg_icon_list_validate (icon_list);
+
+ egg_icon_list_queue_layout (icon_list);
+}
+
+
+static void
+egg_icon_list_sort (EggIconList *icon_list)
+{
+ egg_icon_list_validate (icon_list);
+
+ /* FIXME: We can optimize this */
+ icon_list->priv->items = g_list_sort_with_data (icon_list->priv->items,
+ (GCompareDataFunc)egg_icon_list_sort_func,
+ icon_list);
+ icon_list->priv->last_item = g_list_last (icon_list->priv->items);
+
+ egg_icon_list_validate (icon_list);
+ egg_icon_list_queue_layout (icon_list);
+}
+
+
+static void
+egg_icon_list_validate (EggIconList *icon_list)
+{
+#if 0
+ GList *list;
+
+ g_print ("----\n");
+ for (list = icon_list->priv->items; list; list = list->next)
+ {
+ EggIconListItem *item = list->data;
+
+ g_print ("%s\n", egg_icon_list_item_get_label (item));
+ }
+ g_print ("----\n");
+#endif
+
+ g_assert (g_list_length (icon_list->priv->items) == icon_list->priv->item_count);
+ g_assert (g_list_last (icon_list->priv->items) == icon_list->priv->last_item);
+ g_assert (g_list_first (icon_list->priv->last_item) == icon_list->priv->items);
+}
+
+static void
+egg_icon_list_update_rubberband_selection (EggIconList *icon_list)
+{
+ GList *items;
+ gint x, y, width, height;
+ gboolean dirty = FALSE;
+
+ x = MIN (icon_list->priv->rubberband_x1,
+ icon_list->priv->rubberband_x2);
+ y = MIN (icon_list->priv->rubberband_y1,
+ icon_list->priv->rubberband_y2);
+ width = ABS (icon_list->priv->rubberband_x1 -
+ icon_list->priv->rubberband_x2);
+ height = ABS (icon_list->priv->rubberband_y1 -
+ icon_list->priv->rubberband_y2);
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+ gboolean is_in;
+ gboolean selected;
+
+ is_in = egg_icon_list_item_hit_test (item, x, y, width, height);
+
+ selected = is_in ^ item->selected_before_rubberbanding;
+
+ if (item->selected != selected)
+ {
+ item->selected = selected;
+ dirty = TRUE;
+ egg_icon_list_queue_draw_item (icon_list, item);
+ }
+ }
+
+ if (dirty)
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+}
+
+static gboolean
+egg_icon_list_item_hit_test (EggIconListItem *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;
+}
+
+static gboolean
+egg_icon_list_maybe_begin_dragging_items (EggIconList *icon_list,
+ GdkEventMotion *event)
+{
+ gboolean retval = FALSE;
+ gint button;
+ if (icon_list->priv->pressed_button < 0)
+ return retval;
+
+ if (!gtk_drag_check_threshold (GTK_WIDGET (icon_list),
+ icon_list->priv->press_start_x,
+ icon_list->priv->press_start_y,
+ event->x, event->y))
+ return retval;
+
+ button = icon_list->priv->pressed_button;
+ icon_list->priv->pressed_button = -1;
+
+ {
+ static GtkTargetEntry row_targets[] = {
+ { "EGG_ICON_LIST_ITEMS", GTK_TARGET_SAME_APP, 0 }
+ };
+ GtkTargetList *target_list;
+ GdkDragContext *context;
+ EggIconListItem *item;
+
+ retval = TRUE;
+
+ target_list = gtk_target_list_new (row_targets, G_N_ELEMENTS (row_targets));
+
+ context = gtk_drag_begin (GTK_WIDGET (icon_list),
+ target_list, GDK_ACTION_MOVE,
+ button,
+ (GdkEvent *)event);
+
+ item = egg_icon_list_get_item_at_pos (icon_list,
+ icon_list->priv->press_start_x,
+ icon_list->priv->press_start_y);
+ g_assert (item != NULL);
+ gtk_drag_set_icon_pixbuf (context, egg_icon_list_item_get_icon (item),
+ event->x - item->x,
+ event->y - item->y);
+ }
+
+ return retval;
+}
+
+
+static gboolean
+egg_icon_list_unselect_all_internal (EggIconList *icon_list,
+ gboolean emit)
+{
+ gboolean dirty = FALSE;
+ GList *items;
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+
+ if (item->selected)
+ {
+ item->selected = FALSE;
+ dirty = TRUE;
+ egg_icon_list_queue_draw_item (icon_list, item);
+ }
+ }
+
+ if (emit && dirty)
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+
+ return dirty;
+}
+
+
+/* EggIconList signals */
+static void
+egg_icon_list_set_adjustments (EggIconList *icon_list,
+ 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_list->priv->hadjustment && (icon_list->priv->hadjustment != hadj))
+ {
+ g_signal_handlers_disconnect_matched (icon_list->priv->hadjustment, G_SIGNAL_MATCH_DATA,
+ 0, 0, NULL, NULL, icon_list);
+ g_object_unref (icon_list->priv->hadjustment);
+ }
+
+ if (icon_list->priv->vadjustment && (icon_list->priv->vadjustment != vadj))
+ {
+ g_signal_handlers_disconnect_matched (icon_list->priv->vadjustment, G_SIGNAL_MATCH_DATA,
+ 0, 0, NULL, NULL, icon_list);
+ g_object_unref (icon_list->priv->vadjustment);
+ }
+
+ if (icon_list->priv->hadjustment != hadj)
+ {
+ icon_list->priv->hadjustment = hadj;
+ g_object_ref (icon_list->priv->hadjustment);
+ gtk_object_sink (GTK_OBJECT (icon_list->priv->hadjustment));
+
+ g_signal_connect (icon_list->priv->hadjustment, "value_changed",
+ G_CALLBACK (egg_icon_list_adjustment_changed),
+ icon_list);
+ need_adjust = TRUE;
+ }
+
+ if (icon_list->priv->vadjustment != vadj)
+ {
+ icon_list->priv->vadjustment = vadj;
+ g_object_ref (icon_list->priv->vadjustment);
+ gtk_object_sink (GTK_OBJECT (icon_list->priv->vadjustment));
+
+ g_signal_connect (icon_list->priv->vadjustment, "value_changed",
+ G_CALLBACK (egg_icon_list_adjustment_changed),
+ icon_list);
+ need_adjust = TRUE;
+ }
+
+ if (need_adjust)
+ egg_icon_list_adjustment_changed (NULL, icon_list);
+}
+
+static void
+egg_icon_list_real_select_all (EggIconList *icon_list)
+{
+ if (icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
+ return;
+
+ egg_icon_list_select_all (icon_list);
+}
+
+static void
+egg_icon_list_real_unselect_all (EggIconList *icon_list)
+{
+ if (icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
+ return;
+
+ egg_icon_list_unselect_all (icon_list);
+}
+
+static void
+egg_icon_list_real_select_cursor_item (EggIconList *icon_list)
+{
+ egg_icon_list_unselect_all (icon_list);
+
+ if (icon_list->priv->cursor_item != NULL)
+ egg_icon_list_select_item (icon_list, icon_list->priv->cursor_item);
+}
+
+static void
+egg_icon_list_real_toggle_cursor_item (EggIconList *icon_list)
+{
+ if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
+ return;
+
+ /* FIXME: Use another function here */
+ if (icon_list->priv->cursor_item != NULL)
+ {
+ if (icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
+ icon_list->priv->cursor_item->selected = TRUE;
+ else
+ icon_list->priv->cursor_item->selected = !icon_list->priv->cursor_item->selected;
+
+ egg_icon_list_queue_draw_item (icon_list, icon_list->priv->cursor_item);
+ }
+}
+
+/* Internal functions */
+static void
+egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
+ EggIconList *icon_list)
+{
+ if (GTK_WIDGET_REALIZED (icon_list))
+ {
+ gdk_window_move (icon_list->priv->bin_window,
+ - icon_list->priv->hadjustment->value,
+ - icon_list->priv->vadjustment->value);
+ gdk_window_process_updates (icon_list->priv->bin_window, TRUE);
+ }
+}
+
+static GList *
+egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint *y, gint *maximum_width)
+{
+ gint x, current_width, max_height, max_pixbuf_height;
+ GList *items, *last_item;
+ gint icon_padding;
+ gint left_margin, right_margin;
+ gint maximum_layout_width;
+
+ x = 0;
+ max_height = 0;
+ max_pixbuf_height = 0;
+ items = first_item;
+ current_width = 0;
+
+ gtk_widget_style_get (GTK_WIDGET (icon_list),
+ "icon_padding", &icon_padding,
+ "left_margin", &left_margin,
+ "right_margin", &right_margin,
+ NULL);
+
+ x += left_margin;
+ current_width += left_margin + right_margin;
+ items = first_item;
+
+ while (items)
+ {
+ EggIconListItem *item = items->data;
+
+ egg_icon_list_calculate_item_size (icon_list, 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_list)->allocation.width &&
+ items != first_item)
+ break;
+
+ maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH);
+
+ item->y = *y;
+ item->x = x;
+
+ if (item->width < MINIMUM_ICON_ITEM_WIDTH) {
+ item->x += (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2;
+ x += (MINIMUM_ICON_ITEM_WIDTH - item->width);
+ }
+
+ 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;
+
+ items = items->next;
+ }
+
+ last_item = items;
+
+ *y += max_height + icon_padding;
+
+ /* Now go through the row again and align the icons */
+ for (items = first_item; items != last_item; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+
+ item->pixbuf_y = item->y + (max_pixbuf_height - item->pixbuf_height);
+ item->layout_y = item->pixbuf_y + item->pixbuf_height + ICON_TEXT_PADDING;
+
+ /* 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;
+ }
+
+ return last_item;
+}
+
+static void
+egg_icon_list_set_adjustment_upper (GtkAdjustment *adj,
+ gdouble upper)
+{
+ if (upper != adj->upper)
+ {
+ gdouble min = MAX (0., upper - adj->page_size);
+ gboolean value_changed = FALSE;
+
+ adj->upper = upper;
+
+ if (adj->value > min)
+ {
+ adj->value = min;
+ value_changed = TRUE;
+ }
+
+ g_signal_emit_by_name (adj, "changed");
+
+ if (value_changed)
+ g_signal_emit_by_name (adj, "value_changed");
+ }
+}
+
+static void
+egg_icon_list_layout (EggIconList *icon_list)
+{
+ gint y = 0, maximum_width = 0;
+ GList *icons;
+ GtkWidget *widget;
+ gint top_margin, bottom_margin;
+
+ widget = GTK_WIDGET (icon_list);
+ icons = icon_list->priv->items;
+
+ gtk_widget_style_get (widget,
+ "top_margin", &top_margin,
+ "bottom_margin", &bottom_margin,
+ NULL);
+ y += top_margin;
+
+ do
+ {
+ icons = egg_icon_list_layout_single_row (icon_list, icons, &y, &maximum_width);
+ }
+ while (icons != NULL);
+
+ if (maximum_width != icon_list->priv->width)
+ {
+ icon_list->priv->width = maximum_width;
+ }
+
+ y += bottom_margin;
+
+ if (y != icon_list->priv->height)
+ {
+ icon_list->priv->height = y;
+ }
+
+ egg_icon_list_set_adjustment_upper (icon_list->priv->hadjustment, icon_list->priv->width);
+ egg_icon_list_set_adjustment_upper (icon_list->priv->vadjustment, icon_list->priv->height);
+
+ if (GTK_WIDGET_REALIZED (icon_list))
+ {
+ gdk_window_resize (icon_list->priv->bin_window,
+ MAX (icon_list->priv->width, widget->allocation.width),
+ MAX (icon_list->priv->height, widget->allocation.height));
+ }
+
+ if (icon_list->priv->layout_idle_id != 0)
+ {
+ g_source_remove (icon_list->priv->layout_idle_id);
+ icon_list->priv->layout_idle_id = 0;
+ }
+
+ gtk_widget_queue_draw (GTK_WIDGET (icon_list));
+}
+
+
+static void
+egg_icon_list_item_init (EggIconListItem *item)
+{
+ item->width = -1;
+ item->height = -1;
+}
+
+static void
+egg_icon_list_item_class_init (GObjectClass *klass)
+{
+ item_parent_class = g_type_class_peek_parent (klass);
+
+ klass->finalize = egg_icon_list_item_finalize;;
+ klass->set_property = egg_icon_list_item_set_property;
+ klass->get_property = egg_icon_list_item_get_property;
+
+ /* Properties */
+ g_object_class_install_property (klass,
+ PROP_LABEL,
+ g_param_spec_string ("label",
+ _("Icon item label"),
+ _("The label of the icon item"),
+ NULL,
+ G_PARAM_READWRITE));
+
+}
+
+static void
+egg_icon_list_item_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+}
+
+static void
+egg_icon_list_item_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+}
+
+static void
+egg_icon_list_item_finalize (GObject *object)
+{
+ EggIconListItem *item;
+
+ item = EGG_ICON_LIST_ITEM (object);
+
+ g_free (item->label);
+ g_object_unref (item->icon);
+
+ (G_OBJECT_CLASS (parent_class)->finalize) (object);
+}
+
+/* Creates or updates the pango layout and calculates the size */
+static void
+egg_icon_list_calculate_item_size (EggIconList *icon_list, EggIconListItem *item)
+{
+ int layout_width, layout_height;
+ int maximum_layout_width;
+
+ if (item->width != -1 && item->width != -1)
+ return;
+
+ item->pixbuf_width = gdk_pixbuf_get_width (item->icon);
+ item->pixbuf_height = gdk_pixbuf_get_height (item->icon);
+
+ maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH);
+
+ pango_layout_set_text (icon_list->priv->layout, item->label, -1);
+
+ pango_layout_set_alignment (icon_list->priv->layout, PANGO_ALIGN_CENTER);
+ pango_layout_set_width (icon_list->priv->layout, maximum_layout_width * PANGO_SCALE);
+
+ pango_layout_get_pixel_size (icon_list->priv->layout, &layout_width, &layout_height);
+
+ item->width = MAX ((layout_width + 2 * ICON_TEXT_PADDING), item->pixbuf_width);
+ item->height = layout_height + 2 * ICON_TEXT_PADDING + item->pixbuf_height;
+ item->layout_width = layout_width;
+ item->layout_height = layout_height;
+}
+
+static void
+egg_icon_list_item_invalidate_size (EggIconListItem *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
+egg_icon_list_paint_item (EggIconList *icon_list,
+ EggIconListItem *item,
+ GdkRectangle *area)
+{
+ GdkPixbuf *pixbuf;
+ GtkStateType state;
+
+ if (GTK_WIDGET_HAS_FOCUS (icon_list))
+ state = GTK_STATE_SELECTED;
+ else
+ state = GTK_STATE_ACTIVE;
+
+ if (item->selected)
+ pixbuf = create_colorized_pixbuf (item->icon,
+ >K_WIDGET (icon_list)->style->base[state]);
+ else
+ pixbuf = gdk_pixbuf_ref (item->icon);
+
+ gdk_pixbuf_render_to_drawable_alpha (pixbuf,
+ icon_list->priv->bin_window,
+ 0, 0,
+ item->pixbuf_x,
+ item->pixbuf_y,
+ item->pixbuf_width,
+ item->pixbuf_height,
+ GDK_PIXBUF_ALPHA_FULL,
+ 0,
+ GDK_RGB_DITHER_NORMAL,
+ item->pixbuf_width,
+ item->pixbuf_height);
+ g_object_unref (pixbuf);
+
+ if (item->selected)
+ {
+ gdk_draw_rectangle (icon_list->priv->bin_window,
+ GTK_WIDGET (icon_list)->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);
+ }
+
+ pango_layout_set_text (icon_list->priv->layout, item->label, -1);
+ gdk_draw_layout (icon_list->priv->bin_window,
+ GTK_WIDGET (icon_list)->style->text_gc[item->selected ? state : GTK_STATE_NORMAL],
+ item->layout_x - ((item->width - item->layout_width) / 2) - (MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH) - item->width) / 2,
+ item->layout_y,
+ icon_list->priv->layout);
+
+ if (GTK_WIDGET_HAS_FOCUS (icon_list) &&
+ item == icon_list->priv->cursor_item)
+ gtk_paint_focus (GTK_WIDGET (icon_list)->style,
+ icon_list->priv->bin_window,
+ item->selected ? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
+ area,
+ GTK_WIDGET (icon_list),
+ "iconlist",
+ 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);
+}
+
+static void
+egg_icon_list_paint_rubberband (EggIconList *icon_list,
+ GdkRectangle *area)
+{
+ GdkRectangle rect;
+ GdkPixbuf *pixbuf;
+ GdkGC *gc;
+ GdkColor color;
+ GdkRectangle rubber_rect;
+
+ rubber_rect.x = MIN (icon_list->priv->rubberband_x1, icon_list->priv->rubberband_x2);
+ rubber_rect.y = MIN (icon_list->priv->rubberband_y1, icon_list->priv->rubberband_y2);
+ rubber_rect.width = ABS (icon_list->priv->rubberband_x1 - icon_list->priv->rubberband_x2) + 1;
+ rubber_rect.height = ABS (icon_list->priv->rubberband_y1 - icon_list->priv->rubberband_y2) + 1;
+
+ if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
+ return;
+
+ pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, rect.width, rect.height);
+ gdk_pixbuf_fill (pixbuf, 0x9db8d27F);
+
+ gdk_pixbuf_render_to_drawable_alpha (pixbuf,
+ icon_list->priv->bin_window,
+ 0, 0,
+ rect.x,rect.y,
+ rect.width, rect.height,
+ GDK_PIXBUF_ALPHA_FULL,
+ 0,
+ GDK_RGB_DITHER_NONE,
+ 0, 0);
+ g_object_unref (pixbuf);
+ gc = gdk_gc_new (icon_list->priv->bin_window);
+ color.red = 0x72 * 255;
+ color.green = 0x7d * 255;
+ color.blue = 0x97 * 255;
+ gdk_gc_set_rgb_fg_color (gc, &color);
+ gdk_gc_set_clip_rectangle (gc, &rect);
+ gdk_draw_rectangle (icon_list->priv->bin_window,
+ gc, FALSE,
+ rubber_rect.x, rubber_rect.y,
+ rubber_rect.width - 1, rubber_rect.height - 1);
+ g_object_unref (gc);
+}
+
+static void
+egg_icon_list_queue_draw_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ GdkRectangle rect;
+
+ rect.x = item->x;
+ rect.y = item->y;
+ rect.width = item->width;
+ rect.height = item->height;
+
+ gdk_window_invalidate_rect (icon_list->priv->bin_window, &rect, TRUE);
+}
+
+static gboolean
+layout_callback (gpointer user_data)
+{
+ EggIconList *icon_list;
+
+ icon_list = EGG_ICON_LIST (user_data);
+
+ icon_list->priv->layout_idle_id = 0;
+
+ egg_icon_list_layout (icon_list);
+
+ return FALSE;
+}
+
+static void
+egg_icon_list_queue_layout (EggIconList *icon_list)
+{
+ if (icon_list->priv->layout_idle_id != 0)
+ return;
+
+ icon_list->priv->layout_idle_id = g_idle_add (layout_callback, icon_list);
+}
+
+static void
+egg_icon_list_set_cursor_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ if (icon_list->priv->cursor_item == item)
+ return;
+
+ if (icon_list->priv->cursor_item != NULL)
+ egg_icon_list_queue_draw_item (icon_list, icon_list->priv->cursor_item);
+
+ icon_list->priv->cursor_item = item;
+ egg_icon_list_queue_draw_item (icon_list, item);
+}
+
+static void
+egg_icon_list_append_typeahead_string (EggIconList *icon_list,
+ const gchar *string)
+{
+ int i;
+ char *typeahead_string;
+
+ if (strlen (string) == 0)
+ return;
+
+ for (i = 0; i < strlen (string); i++)
+ {
+ if (!g_ascii_isprint (string[i]))
+ return;
+ }
+
+ typeahead_string = g_strconcat (icon_list->priv->typeahead_string ?
+ icon_list->priv->typeahead_string : "",
+ string, NULL);
+ g_free (icon_list->priv->typeahead_string);
+ icon_list->priv->typeahead_string = typeahead_string;
+
+ egg_icon_list_select_first_matching_item (icon_list,
+ icon_list->priv->typeahead_string);
+
+ g_print ("wooo: \"%s\"\n", typeahead_string);
+}
+
+/* Public API */
+GtkWidget *
+egg_icon_list_new (void)
+{
+ EggIconList *icon_list;
+
+ icon_list = g_object_new (EGG_TYPE_ICON_LIST, NULL);
+
+ return GTK_WIDGET (icon_list);
+}
+
+EggIconListItem *
+egg_icon_list_item_new (GdkPixbuf *icon,
+ const char *label)
+{
+ EggIconListItem *item;
+
+ item = g_object_new (EGG_TYPE_ICON_LIST_ITEM, NULL);
+
+ item->label = g_strdup (label);
+ item->icon = g_object_ref (icon);
+
+ return item;
+}
+
+void
+egg_icon_list_item_set_data (EggIconListItem *item,
+ gpointer data)
+{
+ egg_icon_list_item_set_data_full (item, data, NULL);
+}
+
+void
+egg_icon_list_item_set_data_full (EggIconListItem *item,
+ gpointer data,
+ GDestroyNotify destroy_notify)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST_ITEM (item));
+
+ g_object_set_data_full (G_OBJECT (item), ICON_LIST_ITEM_DATA, data, destroy_notify);
+}
+
+gpointer
+egg_icon_list_item_get_data (EggIconListItem *item)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST_ITEM (item), NULL);
+
+ return g_object_get_data (G_OBJECT (item), ICON_LIST_ITEM_DATA);
+}
+
+void
+egg_icon_list_item_set_label (EggIconListItem *item,
+ const char *label)
+{
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (label != NULL);
+
+ if (strcmp (item->label, label) == 0)
+ return;
+
+ g_free (item->label);
+ item->label = g_strdup (label);
+ egg_icon_list_item_invalidate_size (item);
+
+ egg_icon_list_queue_layout (item->icon_list);
+
+ g_object_notify (G_OBJECT (item), "label");
+}
+
+G_CONST_RETURN gchar *
+egg_icon_list_item_get_label (EggIconListItem *item)
+{
+ g_return_val_if_fail (item != NULL, NULL);
+
+ return item->label;
+}
+
+void
+egg_icon_list_item_set_icon (EggIconListItem *item,
+ GdkPixbuf *icon)
+{
+ g_return_if_fail (item != NULL);
+
+ if (icon == item->icon)
+ return;
+
+ g_object_unref (item->icon);
+ item->icon = g_object_ref (icon);
+
+ egg_icon_list_item_invalidate_size (item);
+
+ egg_icon_list_queue_layout (item->icon_list);
+}
+
+GdkPixbuf *
+egg_icon_list_item_get_icon (EggIconListItem *item)
+{
+ g_return_val_if_fail (item != NULL, NULL);
+
+ return item->icon;
+}
+
+void
+egg_icon_list_append_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ GList *list;
+
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (item->icon_list == NULL);
+
+ if (icon_list->priv->sorted)
+ {
+ egg_icon_list_insert_item_sorted (icon_list, item);
+ return;
+ }
+
+ egg_icon_list_validate (icon_list);
+
+ list = g_list_alloc ();
+ item->list = list;
+ item->icon_list = icon_list;
+ list->data = item;
+ g_object_ref (item);
+
+ if (icon_list->priv->last_item)
+ {
+ icon_list->priv->last_item->next = list;
+ list->prev = icon_list->priv->last_item;
+ }
+ else
+ icon_list->priv->items = list;
+
+ icon_list->priv->last_item = list;
+ icon_list->priv->item_count += 1;
+
+ egg_icon_list_validate (icon_list);
+
+ g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
+
+ egg_icon_list_queue_layout (icon_list);
+}
+
+void
+egg_icon_list_prepend_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ GList *list;
+
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (item->icon_list == NULL);
+
+ egg_icon_list_validate (icon_list);
+
+ list = g_list_alloc ();
+ item->list = list;
+ item->icon_list = icon_list;
+ list->data = item;
+ g_object_ref (item);
+
+ if (icon_list->priv->last_item == NULL)
+ icon_list->priv->last_item = list;
+
+ if (icon_list->priv->items)
+ icon_list->priv->items->prev = list;
+
+ list->next = icon_list->priv->items;
+ icon_list->priv->items = list;
+ icon_list->priv->item_count += 1;
+
+ egg_icon_list_validate (icon_list);
+
+ g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
+
+ egg_icon_list_queue_layout (icon_list);
+
+}
+
+
+void
+egg_icon_list_insert_item_before (EggIconList *icon_list,
+ EggIconListItem *sibling,
+ EggIconListItem *item)
+{
+ GList *list;
+
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (item->icon_list == NULL);
+
+ if (icon_list->priv->sorted)
+ {
+ egg_icon_list_insert_item_sorted (icon_list, item);
+ return;
+ }
+
+ if (sibling == NULL)
+ egg_icon_list_append_item (icon_list, item);
+
+ egg_icon_list_validate (icon_list);
+
+ list = g_list_alloc ();
+ item->list = list;
+ item->icon_list = icon_list;
+ list->data = item;
+ g_object_ref (item);
+
+ list->prev = sibling->list->prev;
+ list->next = sibling->list;
+ sibling->list->prev->next = list;
+ sibling->list->prev = list;
+
+ if (sibling->list == icon_list->priv->items)
+ icon_list->priv->items = list;
+
+ icon_list->priv->item_count += 1;
+ egg_icon_list_validate (icon_list);
+
+ g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
+
+ egg_icon_list_queue_layout (icon_list);
+}
+
+void
+egg_icon_list_insert_item_after (EggIconList *icon_list,
+ EggIconListItem *sibling,
+ EggIconListItem *item)
+{
+ GList *list;
+
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (item->icon_list == NULL);
+
+ if (icon_list->priv->sorted)
+ {
+ egg_icon_list_insert_item_sorted (icon_list, item);
+ return;
+ }
+
+ if (sibling == NULL)
+ {
+ egg_icon_list_prepend_item (icon_list, item);
+ return;
+ }
+
+ egg_icon_list_validate (icon_list);
+
+ list = g_list_alloc ();
+ item->list = list;
+ item->icon_list = icon_list;
+ list->data = item;
+ g_object_ref (item);
+
+ list->next = sibling->list->next;
+ list->prev = sibling->list;
+ sibling->list->next->prev = list;
+ sibling->list->next = list;
+
+ if (sibling->list == icon_list->priv->last_item)
+ icon_list->priv->last_item = list;
+
+ icon_list->priv->item_count += 1;
+ egg_icon_list_validate (icon_list);
+ g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
+
+ egg_icon_list_queue_layout (icon_list);
+}
+
+void
+egg_icon_list_remove_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+ g_return_if_fail (item->icon_list == icon_list);
+
+ egg_icon_list_validate (icon_list);
+
+ if (item->list->prev)
+ item->list->prev->next = item->list->next;
+ if (item->list->next)
+ item->list->next->prev = item->list->prev;
+
+ if (item->list == icon_list->priv->items)
+ icon_list->priv->items = item->list->next;
+ if (item->list == icon_list->priv->last_item)
+ icon_list->priv->last_item = item->list->prev;
+
+ g_list_free_1 (item->list);
+ item->list = NULL;
+ item->icon_list = NULL;
+ egg_icon_list_item_invalidate_size (item);
+
+ icon_list->priv->item_count -= 1;
+ egg_icon_list_validate (icon_list);
+
+ g_signal_emit (icon_list, icon_list_signals[ITEM_REMOVED], 0, item);
+
+ if (item->selected)
+ {
+ item->selected = FALSE;
+
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+ }
+
+ if (icon_list->priv->cursor_item == item)
+ g_error ("FIXME: Move to first focused item");
+
+ if (icon_list->priv->last_single_clicked == item)
+ icon_list->priv->last_single_clicked = NULL;
+
+ g_object_unref (item);
+
+ egg_icon_list_queue_layout (icon_list);
+}
+
+
+EggIconListItem *
+egg_icon_list_get_item_at_pos (EggIconList *icon_list,
+ gint x,
+ gint y)
+{
+ GList *items;
+
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), NULL);
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *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;
+}
+
+gint
+egg_icon_list_get_item_count (EggIconList *icon_list)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), 0);
+
+ return icon_list->priv->item_count;
+}
+
+void
+egg_icon_list_foreach (EggIconList *icon_list,
+ EggIconListForeachFunc func,
+ gpointer data)
+{
+ GList *list;
+
+ for (list = icon_list->priv->items; list; list = list->next)
+ (* func) (icon_list, list->data, data);
+}
+
+void
+egg_icon_list_selected_foreach (EggIconList *icon_list,
+ EggIconListForeachFunc func,
+ gpointer data)
+{
+ GList *list;
+
+ for (list = icon_list->priv->items; list; list = list->next)
+ {
+ EggIconListItem *item = list->data;
+
+ if (item->selected)
+ (* func) (icon_list, list->data, data);
+ }
+}
+
+GList *
+egg_icon_list_get_selected (EggIconList *icon_list)
+{
+ GList *list, *selected = NULL;
+
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), NULL);
+
+ for (list = icon_list->priv->items; list; list = list->next)
+ {
+ EggIconListItem *item = list->data;
+
+ if (item->selected)
+ selected = g_list_prepend (selected, item);
+ }
+
+ return g_list_reverse (selected);
+}
+
+void
+egg_icon_list_set_selection_mode (EggIconList *icon_list,
+ GtkSelectionMode mode)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+
+ if (mode == icon_list->priv->selection_mode)
+ return;
+
+ if (mode == GTK_SELECTION_NONE ||
+ icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE)
+ egg_icon_list_unselect_all (icon_list);
+
+ icon_list->priv->selection_mode = mode;
+
+ g_object_notify (G_OBJECT (icon_list), "selection_mode");
+}
+
+GtkSelectionMode
+egg_icon_list_get_selection_mode (EggIconList *icon_list)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), GTK_SELECTION_SINGLE);
+
+ return icon_list->priv->selection_mode;
+}
+
+void
+egg_icon_list_select_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+
+ if (item->selected)
+ return;
+
+ if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
+ return;
+ else if (icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
+ egg_icon_list_unselect_all_internal (icon_list, FALSE);
+
+ item->selected = TRUE;
+
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+
+ egg_icon_list_queue_draw_item (icon_list, item);
+}
+
+
+void
+egg_icon_list_unselect_item (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (item != NULL);
+
+ if (!item->selected)
+ return;
+
+ if (icon_list->priv->selection_mode == GTK_SELECTION_NONE ||
+ icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
+ return;
+
+ item->selected = FALSE;
+
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+
+ egg_icon_list_queue_draw_item (icon_list, item);
+}
+
+gboolean
+egg_icon_list_item_is_selected (EggIconListItem *item)
+{
+ g_return_val_if_fail (item != NULL, FALSE);
+
+ return item->selected;
+}
+
+void
+egg_icon_list_unselect_all (EggIconList *icon_list)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+
+ egg_icon_list_unselect_all_internal (icon_list, TRUE);
+}
+
+void
+egg_icon_list_select_all (EggIconList *icon_list)
+{
+ GList *items;
+ gboolean dirty = FALSE;
+
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+
+ for (items = icon_list->priv->items; items; items = items->next)
+ {
+ EggIconListItem *item = items->data;
+
+ if (!item->selected)
+ {
+ dirty = TRUE;
+ item->selected = TRUE;
+ egg_icon_list_queue_draw_item (icon_list, item);
+ }
+ }
+
+ if (dirty)
+ g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
+}
+
+void
+egg_icon_list_set_sorted (EggIconList *icon_list,
+ gboolean sorted)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (icon_list->priv->sort_func != NULL);
+
+ if (icon_list->priv->sorted == sorted)
+ return;
+
+ icon_list->priv->sorted = sorted;
+ g_object_notify (G_OBJECT (icon_list), "sorted");
+
+ if (icon_list->priv->sorted)
+ egg_icon_list_sort (icon_list);
+}
+
+gboolean
+egg_icon_list_get_sorted (EggIconList *icon_list)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), FALSE);
+
+ return icon_list->priv->sorted;
+}
+
+void
+egg_icon_list_set_sort_func (EggIconList *icon_list,
+ EggIconListItemCompareFunc func,
+ gpointer data,
+ GDestroyNotify destroy_notify)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+ g_return_if_fail (func != NULL);
+
+ if (icon_list->priv->sort_destroy_notify &&
+ icon_list->priv->sort_data)
+ (* icon_list->priv->sort_destroy_notify) (icon_list->priv->sort_data);
+
+ icon_list->priv->sort_func = func;
+ icon_list->priv->sort_data = data;
+ icon_list->priv->sort_destroy_notify = destroy_notify;
+}
+
+void
+egg_icon_list_set_sort_order (EggIconList *icon_list,
+ GtkSortType order)
+{
+ g_return_if_fail (GTK_IS_ICON_LIST (icon_list));
+
+ if (icon_list->priv->sort_order == order)
+ return;
+
+ icon_list->priv->sort_order = order;
+
+ if (icon_list->priv->sorted)
+ egg_icon_list_sort (icon_list);
+
+ g_object_notify (G_OBJECT (icon_list), "sort_order");
+}
+
+GtkSortType
+egg_icon_list_get_sort_order (EggIconList *icon_list)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), GTK_SORT_ASCENDING);
+
+ return icon_list->priv->sort_order;
+}
+
+void
+egg_icon_list_item_activated (EggIconList *icon_list,
+ EggIconListItem *item)
+{
+ g_signal_emit (G_OBJECT (icon_list), icon_list_signals[ITEM_ACTIVATED], 0, item);
+}
+
+GList *
+egg_icon_list_get_items (EggIconList *icon_list)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST (icon_list), NULL);
+
+ return icon_list->priv->items;
+}
+
+EggIconList *
+egg_icon_list_item_get_icon_list (EggIconListItem *item)
+{
+ g_return_val_if_fail (GTK_IS_ICON_LIST_ITEM (item), NULL);
+
+ return item->icon_list;
+}
projects / gtk4.git / commitdiff