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/* gnome-canvas-container.h - Canvas container widget.
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/>.
Authors: Ettore Perazzoli <ettore@gnu.org>, Darin Adler <darin@bentspoon.com>
*/
#ifndef NAUTILUS_CANVAS_CONTAINER_H
#define NAUTILUS_CANVAS_CONTAINER_H
#include <eel/eel-canvas.h>
#include "nautilus-icon-info.h"
#define NAUTILUS_TYPE_CANVAS_CONTAINER nautilus_canvas_container_get_type()
#define NAUTILUS_CANVAS_CONTAINER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), NAUTILUS_TYPE_CANVAS_CONTAINER, NautilusCanvasContainer))
#define NAUTILUS_CANVAS_CONTAINER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), NAUTILUS_TYPE_CANVAS_CONTAINER, NautilusCanvasContainerClass))
#define NAUTILUS_IS_CANVAS_CONTAINER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), NAUTILUS_TYPE_CANVAS_CONTAINER))
#define NAUTILUS_IS_CANVAS_CONTAINER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), NAUTILUS_TYPE_CANVAS_CONTAINER))
#define NAUTILUS_CANVAS_CONTAINER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), NAUTILUS_TYPE_CANVAS_CONTAINER, NautilusCanvasContainerClass))
#define NAUTILUS_CANVAS_ICON_DATA(pointer) \
((NautilusCanvasIconData *) (pointer))
typedef struct NautilusCanvasIconData NautilusCanvasIconData;
typedef void (* NautilusCanvasCallback) (NautilusCanvasIconData *icon_data,
gpointer callback_data);
typedef struct {
int x;
int y;
double scale;
} NautilusCanvasPosition;
#define NAUTILUS_CANVAS_CONTAINER_TYPESELECT_FLUSH_DELAY 1000000
typedef struct NautilusCanvasContainerDetails NautilusCanvasContainerDetails;
typedef struct {
EelCanvas canvas;
NautilusCanvasContainerDetails *details;
} NautilusCanvasContainer;
typedef struct {
EelCanvasClass parent_slot;
/* Operations on the container. */
int (* button_press) (NautilusCanvasContainer *container,
GdkEventButton *event);
void (* context_click_background) (NautilusCanvasContainer *container,
GdkEventButton *event);
void (* middle_click) (NautilusCanvasContainer *container,
GdkEventButton *event);
/* Operations on icons. */
void (* activate) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void (* activate_alternate) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void (* activate_previewer) (NautilusCanvasContainer *container,
GList *files,
GArray *locations);
void (* context_click_selection) (NautilusCanvasContainer *container,
GdkEventButton *event);
void (* move_copy_items) (NautilusCanvasContainer *container,
const GList *item_uris,
GdkPoint *relative_item_points,
const char *target_uri,
GdkDragAction action,
int x,
int y);
void (* handle_netscape_url) (NautilusCanvasContainer *container,
const char *url,
const char *target_uri,
GdkDragAction action,
int x,
int y);
void (* handle_uri_list) (NautilusCanvasContainer *container,
const char *uri_list,
const char *target_uri,
GdkDragAction action,
int x,
int y);
void (* handle_text) (NautilusCanvasContainer *container,
const char *text,
const char *target_uri,
GdkDragAction action,
int x,
int y);
void (* handle_raw) (NautilusCanvasContainer *container,
char *raw_data,
int length,
const char *target_uri,
const char *direct_save_uri,
GdkDragAction action,
int x,
int y);
void (* handle_hover) (NautilusCanvasContainer *container,
const char *target_uri);
/* Queries on the container for subclass/client.
* These must be implemented. The default "do nothing" is not good enough.
*/
char * (* get_container_uri) (NautilusCanvasContainer *container);
/* Queries on icons for subclass/client.
* These must be implemented. The default "do nothing" is not
* good enough, these are _not_ signals.
*/
NautilusIconInfo *(* get_icon_images) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
int canvas_size,
gboolean for_drag_accept);
void (* get_icon_text) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
char **editable_text,
char **additional_text,
gboolean include_invisible);
char * (* get_icon_description) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
int (* compare_icons) (NautilusCanvasContainer *container,
NautilusCanvasIconData *canvas_a,
NautilusCanvasIconData *canvas_b);
int (* compare_icons_by_name) (NautilusCanvasContainer *container,
NautilusCanvasIconData *canvas_a,
NautilusCanvasIconData *canvas_b);
void (* prioritize_thumbnailing) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
/* Queries on icons for subclass/client.
* These must be implemented => These are signals !
* The default "do nothing" is not good enough.
*/
gboolean (* can_accept_item) (NautilusCanvasContainer *container,
NautilusCanvasIconData *target,
const char *item_uri);
gboolean (* get_stored_icon_position) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
NautilusCanvasPosition *position);
char * (* get_icon_uri) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
char * (* get_icon_activation_uri) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
char * (* get_icon_drop_target_uri) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
/* If canvas data is NULL, the layout timestamp of the container should be retrieved.
* That is the time when the container displayed a fully loaded directory with
* all canvas positions assigned.
*
* If canvas data is not NULL, the position timestamp of the canvas should be retrieved.
* That is the time when the file (i.e. canvas data payload) was last displayed in a
* fully loaded directory with all canvas positions assigned.
*/
gboolean (* get_stored_layout_timestamp) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
time_t *time);
/* If canvas data is NULL, the layout timestamp of the container should be stored.
* If canvas data is not NULL, the position timestamp of the container should be stored.
*/
gboolean (* store_layout_timestamp) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
const time_t *time);
/* Notifications for the whole container. */
void (* band_select_started) (NautilusCanvasContainer *container);
void (* band_select_ended) (NautilusCanvasContainer *container);
void (* selection_changed) (NautilusCanvasContainer *container);
void (* layout_changed) (NautilusCanvasContainer *container);
/* Notifications for icons. */
void (* icon_position_changed) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
const NautilusCanvasPosition *position);
void (* icon_stretch_started) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void (* icon_stretch_ended) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
int (* preview) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data,
gboolean start_flag);
void (* icon_added) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void (* icon_removed) (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void (* cleared) (NautilusCanvasContainer *container);
gboolean (* start_interactive_search) (NautilusCanvasContainer *container);
} NautilusCanvasContainerClass;
/* GtkObject */
GType nautilus_canvas_container_get_type (void);
GtkWidget * nautilus_canvas_container_new (void);
/* adding, removing, and managing icons */
void nautilus_canvas_container_clear (NautilusCanvasContainer *view);
gboolean nautilus_canvas_container_add (NautilusCanvasContainer *view,
NautilusCanvasIconData *data);
void nautilus_canvas_container_layout_now (NautilusCanvasContainer *container);
gboolean nautilus_canvas_container_remove (NautilusCanvasContainer *view,
NautilusCanvasIconData *data);
void nautilus_canvas_container_for_each (NautilusCanvasContainer *view,
NautilusCanvasCallback callback,
gpointer callback_data);
void nautilus_canvas_container_request_update (NautilusCanvasContainer *view,
NautilusCanvasIconData *data);
void nautilus_canvas_container_request_update_all (NautilusCanvasContainer *container);
void nautilus_canvas_container_reveal (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
gboolean nautilus_canvas_container_is_empty (NautilusCanvasContainer *container);
NautilusCanvasIconData *nautilus_canvas_container_get_first_visible_icon (NautilusCanvasContainer *container);
void nautilus_canvas_container_scroll_to_canvas (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
void nautilus_canvas_container_begin_loading (NautilusCanvasContainer *container);
void nautilus_canvas_container_end_loading (NautilusCanvasContainer *container,
gboolean all_icons_added);
/* control the layout */
gboolean nautilus_canvas_container_is_auto_layout (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_auto_layout (NautilusCanvasContainer *container,
gboolean auto_layout);
gboolean nautilus_canvas_container_is_keep_aligned (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_keep_aligned (NautilusCanvasContainer *container,
gboolean keep_aligned);
void nautilus_canvas_container_sort (NautilusCanvasContainer *container);
void nautilus_canvas_container_freeze_icon_positions (NautilusCanvasContainer *container);
int nautilus_canvas_container_get_max_layout_lines (NautilusCanvasContainer *container);
int nautilus_canvas_container_get_max_layout_lines_for_pango (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_highlighted_for_clipboard (NautilusCanvasContainer *container,
GList *clipboard_canvas_data);
/* operations on all icons */
void nautilus_canvas_container_unselect_all (NautilusCanvasContainer *view);
void nautilus_canvas_container_select_all (NautilusCanvasContainer *view);
void nautilus_canvas_container_select_first (NautilusCanvasContainer *view);
/* operations on the selection */
GList * nautilus_canvas_container_get_selection (NautilusCanvasContainer *view);
void nautilus_canvas_container_invert_selection (NautilusCanvasContainer *view);
void nautilus_canvas_container_set_selection (NautilusCanvasContainer *view,
GList *selection);
GArray * nautilus_canvas_container_get_selected_icon_locations (NautilusCanvasContainer *view);
GArray * nautilus_canvas_container_get_selected_icons_bounding_box (NautilusCanvasContainer *container);
gboolean nautilus_canvas_container_has_stretch_handles (NautilusCanvasContainer *container);
gboolean nautilus_canvas_container_is_stretched (NautilusCanvasContainer *container);
void nautilus_canvas_container_show_stretch_handles (NautilusCanvasContainer *container);
void nautilus_canvas_container_unstretch (NautilusCanvasContainer *container);
/* options */
NautilusCanvasZoomLevel nautilus_canvas_container_get_zoom_level (NautilusCanvasContainer *view);
void nautilus_canvas_container_set_zoom_level (NautilusCanvasContainer *view,
int new_zoom_level);
void nautilus_canvas_container_set_single_click_mode (NautilusCanvasContainer *container,
gboolean single_click_mode);
void nautilus_canvas_container_enable_linger_selection (NautilusCanvasContainer *view,
gboolean enable);
gboolean nautilus_canvas_container_get_is_fixed_size (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_is_fixed_size (NautilusCanvasContainer *container,
gboolean is_fixed_size);
gboolean nautilus_canvas_container_get_is_desktop (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_is_desktop (NautilusCanvasContainer *container,
gboolean is_desktop);
void nautilus_canvas_container_reset_scroll_region (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_font (NautilusCanvasContainer *container,
const char *font);
void nautilus_canvas_container_set_margins (NautilusCanvasContainer *container,
int left_margin,
int right_margin,
int top_margin,
int bottom_margin);
char* nautilus_canvas_container_get_icon_description (NautilusCanvasContainer *container,
NautilusCanvasIconData *data);
gboolean nautilus_canvas_container_is_layout_rtl (NautilusCanvasContainer *container);
gboolean nautilus_canvas_container_is_layout_vertical (NautilusCanvasContainer *container);
gboolean nautilus_canvas_container_get_store_layout_timestamps (NautilusCanvasContainer *container);
void nautilus_canvas_container_set_store_layout_timestamps (NautilusCanvasContainer *container,
gboolean store_layout);
void nautilus_canvas_container_widget_to_file_operation_position (NautilusCanvasContainer *container,
GdkPoint *position);
guint nautilus_canvas_container_get_icon_size_for_zoom_level (NautilusCanvasZoomLevel zoom_level);
#define CANVAS_WIDTH(container,allocation) ((allocation.width \
- container->details->left_margin \
- container->details->right_margin) \
/ EEL_CANVAS (container)->pixels_per_unit)
#define CANVAS_HEIGHT(container,allocation) ((allocation.height \
- container->details->top_margin \
- container->details->bottom_margin) \
/ EEL_CANVAS (container)->pixels_per_unit)
#endif /* NAUTILUS_CANVAS_CONTAINER_H */
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