149 lines
5.6 KiB
C
149 lines
5.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the program; if not, see <http://www.gnu.org/licenses/>
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*
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*
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* Authors:
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* Chris Lahey <clahey@ximian.com>
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*
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* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
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*
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*/
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#ifndef __E_CANVAS_H__
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#define __E_CANVAS_H__
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#include <gtk/gtk.h>
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#include <libgnomecanvas/gnome-canvas.h>
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G_BEGIN_DECLS
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/* ECanvas - A class derived from canvas for the purpose of adding
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* evolution specific canvas hacks.
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*/
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#define E_CANVAS_TYPE (e_canvas_get_type ())
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#define E_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), E_CANVAS_TYPE, ECanvas))
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#define E_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), E_CANVAS_TYPE, ECanvasClass))
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#define E_IS_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), E_CANVAS_TYPE))
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#define E_IS_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((obj), E_CANVAS_TYPE))
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typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item,
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gint flags);
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typedef void (*ECanvasItemSelectionFunc) (GnomeCanvasItem *item,
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gint flags,
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gpointer user_data);
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/* Returns the same as strcmp does. */
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typedef gint (*ECanvasItemSelectionCompareFunc) (GnomeCanvasItem *item,
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gpointer data1,
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gpointer data2,
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gint flags);
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typedef struct _ECanvas ECanvas;
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typedef struct _ECanvasClass ECanvasClass;
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/* Object flags for items */
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enum {
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E_CANVAS_ITEM_NEEDS_REFLOW = 1 << 13,
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E_CANVAS_ITEM_DESCENDENT_NEEDS_REFLOW = 1 << 14
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};
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enum {
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E_CANVAS_ITEM_SELECTION_SELECT = 1 << 0, /* TRUE = select. FALSE = unselect. */
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E_CANVAS_ITEM_SELECTION_CURSOR = 1 << 1, /* TRUE = has become cursor. FALSE = not cursor. */
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E_CANVAS_ITEM_SELECTION_DELETE_DATA = 1 << 2
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};
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typedef struct {
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GnomeCanvasItem *item;
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gpointer id;
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} ECanvasSelectionInfo;
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typedef void (*ECanvasItemGrabCancelled) (ECanvas *canvas, GnomeCanvasItem *item, gpointer data);
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struct _ECanvas
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{
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GnomeCanvas parent;
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gint idle_id;
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GList *selection;
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ECanvasSelectionInfo *cursor;
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GtkWidget *tooltip_window;
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gint visibility_notify_id;
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GtkWidget *toplevel;
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guint visibility_first : 1;
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/* Input context for dead key support */
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GtkIMContext *im_context;
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ECanvasItemGrabCancelled grab_cancelled_cb;
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guint grab_cancelled_check_id;
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guint32 grab_cancelled_time;
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gpointer grab_cancelled_data;
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};
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struct _ECanvasClass
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{
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GnomeCanvasClass parent_class;
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void (* reflow) (ECanvas *canvas);
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};
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GType e_canvas_get_type (void);
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GtkWidget *e_canvas_new (void);
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/* Used to send all of the keystroke events to a specific item as well as
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* GDK_FOCUS_CHANGE events.
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*/
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void e_canvas_item_grab_focus (GnomeCanvasItem *item,
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gboolean widget_too);
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void e_canvas_item_request_reflow (GnomeCanvasItem *item);
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void e_canvas_item_request_parent_reflow (GnomeCanvasItem *item);
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void e_canvas_item_set_reflow_callback (GnomeCanvasItem *item,
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ECanvasItemReflowFunc func);
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void e_canvas_item_set_selection_callback (GnomeCanvasItem *item,
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ECanvasItemSelectionFunc func);
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void e_canvas_item_set_selection_compare_callback (GnomeCanvasItem *item,
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ECanvasItemSelectionCompareFunc func);
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void e_canvas_item_set_cursor (GnomeCanvasItem *item,
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gpointer id);
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void e_canvas_item_add_selection (GnomeCanvasItem *item,
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gpointer id);
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void e_canvas_item_remove_selection (GnomeCanvasItem *item,
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gpointer id);
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gint e_canvas_item_grab (ECanvas *canvas,
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GnomeCanvasItem *item,
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guint event_mask,
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GdkCursor *cursor,
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guint32 etime,
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ECanvasItemGrabCancelled cancelled,
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gpointer cancelled_data);
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void e_canvas_item_ungrab (ECanvas *canvas,
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GnomeCanvasItem *item,
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guint32 etime);
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/* Not implemented yet. */
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void e_canvas_item_set_cursor_end (GnomeCanvasItem *item,
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gpointer id);
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void e_canvas_popup_tooltip (ECanvas *canvas,
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GtkWidget *widget,
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gint x,
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gint y);
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void e_canvas_hide_tooltip (ECanvas *canvas);
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G_END_DECLS
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#endif /* __E_CANVAS_H__ */
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