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+/* gnome-canvas-container-private.h
+
+ Copyright (C) 1999, 2000 Free Software Foundation
+ Copyright (C) 2000 Eazel, Inc.
+
+ The Gnome 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.
+
+ The Gnome 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 the Gnome Library; see the file COPYING.LIB. If not,
+ see <http://www.gnu.org/licenses/>.
+
+ Author: Ettore Perazzoli <ettore@gnu.org>
+*/
+
+#pragma once
+
+#include <eel/eel-glib-extensions.h>
+#include "nautilus-canvas-item.h"
+#include "nautilus-canvas-container.h"
+#include "nautilus-canvas-dnd.h"
+
+/* An Icon. */
+
+typedef struct {
+ /* Object represented by this icon. */
+ NautilusCanvasIconData *data;
+
+ /* Canvas item for the icon. */
+ NautilusCanvasItem *item;
+
+ /* X/Y coordinates. */
+ double x, y;
+
+ /*
+ * In RTL mode x is RTL x position, we use saved_ltr_x for
+ * keeping track of x value before it gets converted into
+ * RTL value, this is used for saving the icon position
+ * to the nautilus metafile.
+ */
+ double saved_ltr_x;
+
+ /* Position in the view */
+ int position;
+
+ /* Whether this item is selected. */
+ eel_boolean_bit is_selected : 1;
+
+ /* Whether this item was selected before rubberbanding. */
+ eel_boolean_bit was_selected_before_rubberband : 1;
+
+ /* Whether this item is visible in the view. */
+ eel_boolean_bit is_visible : 1;
+} NautilusCanvasIcon;
+
+
+/* Private NautilusCanvasContainer members. */
+
+typedef struct {
+ gboolean active;
+
+ double start_x, start_y;
+
+ EelCanvasItem *selection_rectangle;
+ GdkDevice *device;
+
+ guint timer_id;
+
+ guint prev_x, prev_y;
+ int last_adj_x;
+ int last_adj_y;
+} NautilusCanvasRubberbandInfo;
+
+typedef enum {
+ DRAG_STATE_INITIAL,
+ DRAG_STATE_MOVE_OR_COPY,
+ DRAG_STATE_STRETCH
+} DragState;
+
+typedef struct {
+ /* Pointer position in canvas coordinates. */
+ int pointer_x, pointer_y;
+
+ /* Icon top, left, and size in canvas coordinates. */
+ int icon_x, icon_y;
+ guint icon_size;
+} StretchState;
+
+typedef enum {
+ AXIS_NONE,
+ AXIS_HORIZONTAL,
+ AXIS_VERTICAL
+} Axis;
+
+enum {
+ LABEL_COLOR,
+ LABEL_COLOR_HIGHLIGHT,
+ LABEL_COLOR_ACTIVE,
+ LABEL_COLOR_PRELIGHT,
+ LABEL_INFO_COLOR,
+ LABEL_INFO_COLOR_HIGHLIGHT,
+ LABEL_INFO_COLOR_ACTIVE,
+ LAST_LABEL_COLOR
+};
+
+struct NautilusCanvasContainerDetails {
+ /* List of icons. */
+ GList *icons;
+ GList *new_icons;
+ GList *selection;
+ GHashTable *icon_set;
+
+ /* Currently focused icon for accessibility. */
+ NautilusCanvasIcon *focus;
+ gboolean keyboard_focus;
+
+ /* Starting icon for keyboard rubberbanding. */
+ NautilusCanvasIcon *keyboard_rubberband_start;
+
+ /* Last highlighted drop target. */
+ NautilusCanvasIcon *drop_target;
+
+ /* Rubberbanding status. */
+ NautilusCanvasRubberbandInfo rubberband_info;
+
+ /* Timeout used to make a selected icon fully visible after a short
+ * period of time. (The timeout is needed to make sure
+ * double-clicking still works.)
+ */
+ guint keyboard_icon_reveal_timer_id;
+ NautilusCanvasIcon *keyboard_icon_to_reveal;
+
+ /* Used to coalesce selection changed signals in some cases */
+ guint selection_changed_id;
+
+ /* If a request is made to reveal an unpositioned icon we remember
+ * it and reveal it once it gets positioned (in relayout).
+ */
+ NautilusCanvasIcon *pending_icon_to_reveal;
+
+ /* Remembered information about the start of the current event. */
+ guint32 button_down_time;
+
+ /* Drag state. Valid only if drag_button is non-zero. */
+ guint drag_button;
+ NautilusCanvasIcon *drag_icon;
+ int drag_x, drag_y;
+ DragState drag_state;
+ gboolean drag_started;
+
+ gboolean icon_selected_on_button_down;
+ gboolean double_clicked;
+ NautilusCanvasIcon *double_click_icon[2]; /* Both clicks in a double click need to be on the same icon */
+ guint double_click_button[2];
+
+ NautilusCanvasIcon *range_selection_base_icon;
+
+ /* Idle ID. */
+ guint idle_id;
+
+ /* Align idle id */
+ guint align_idle_id;
+
+ /* DnD info. */
+ NautilusCanvasDndInfo *dnd_info;
+ NautilusDragInfo *dnd_source_info;
+
+ /* zoom level */
+ int zoom_level;
+
+ /* specific fonts used to draw labels */
+ char *font;
+
+ /* State used so arrow keys don't wander if icons aren't lined up.
+ */
+ int arrow_key_start_x;
+ int arrow_key_start_y;
+ GtkDirectionType arrow_key_direction;
+
+ /* Mode settings. */
+ gboolean single_click_mode;
+
+ /* Set to TRUE after first allocation has been done */
+ gboolean has_been_allocated;
+
+ int size_allocation_count;
+ guint size_allocation_count_id;
+
+ /* a11y items used by canvas items */
+ guint a11y_item_action_idle_handler;
+ GQueue* a11y_item_action_queue;
+
+ eel_boolean_bit in_layout_now : 1;
+ eel_boolean_bit is_loading : 1;
+ eel_boolean_bit is_populating_container : 1;
+ eel_boolean_bit needs_resort : 1;
+ eel_boolean_bit selection_needs_resort : 1;
+};
+
+/* Private functions shared by mutiple files. */
+NautilusCanvasIcon *nautilus_canvas_container_get_icon_by_uri (NautilusCanvasContainer *container,
+ const char *uri);
+void nautilus_canvas_container_select_list_unselect_others (NautilusCanvasContainer *container,
+ GList *icons);
+char * nautilus_canvas_container_get_icon_uri (NautilusCanvasContainer *container,
+ NautilusCanvasIcon *canvas);
+char * nautilus_canvas_container_get_icon_activation_uri (NautilusCanvasContainer *container,
+ NautilusCanvasIcon *canvas);
+char * nautilus_canvas_container_get_icon_drop_target_uri (NautilusCanvasContainer *container,
+ NautilusCanvasIcon *canvas);
+void nautilus_canvas_container_update_icon (NautilusCanvasContainer *container,
+ NautilusCanvasIcon *canvas);
+gboolean nautilus_canvas_container_scroll (NautilusCanvasContainer *container,
+ int delta_x,
+ int delta_y);
+void nautilus_canvas_container_update_scroll_region (NautilusCanvasContainer *container);