1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-canvas.h
* Copyright 2000, 2001, Ximian, Inc.
*
* Authors:
* Chris Lahey <clahey@ximian.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License, version 2, as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef __E_CANVAS_H__
#define __E_CANVAS_H__
#include <gtk/gtkimcontext.h>
#include <libgnomecanvas/gnome-canvas.h>
#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */
/* ECanvas - A class derived from canvas for the purpose of adding
* evolution specific canvas hacks.
*/
#define E_CANVAS_TYPE (e_canvas_get_type ())
#define E_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), E_CANVAS_TYPE, ECanvas))
#define E_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), E_CANVAS_TYPE, ECanvasClass))
#define E_IS_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), E_CANVAS_TYPE))
#define E_IS_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((obj), E_CANVAS_TYPE))
typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item,
gint flags);
typedef void (*ECanvasItemSelectionFunc) (GnomeCanvasItem *item,
gint flags,
gpointer user_data);
/* Returns the same as strcmp does. */
typedef gint (*ECanvasItemSelectionCompareFunc) (GnomeCanvasItem *item,
gpointer data1,
gpointer data2,
gint flags);
typedef struct _ECanvas ECanvas;
typedef struct _ECanvasClass ECanvasClass;
/* Object flags for items */
enum {
E_CANVAS_ITEM_NEEDS_REFLOW = 1 << 13,
E_CANVAS_ITEM_DESCENDENT_NEEDS_REFLOW = 1 << 14
};
enum {
E_CANVAS_ITEM_SELECTION_SELECT = 1 << 0, /* TRUE = select. FALSE = unselect. */
E_CANVAS_ITEM_SELECTION_CURSOR = 1 << 1, /* TRUE = has become cursor. FALSE = not cursor. */
E_CANVAS_ITEM_SELECTION_DELETE_DATA = 1 << 2
};
typedef struct {
GnomeCanvasItem *item;
gpointer id;
} ECanvasSelectionInfo;
typedef void (*ECanvasItemGrabCancelled) (ECanvas *canvas, GnomeCanvasItem *item, gpointer data);
struct _ECanvas
{
GnomeCanvas parent;
int idle_id;
GList *selection;
ECanvasSelectionInfo *cursor;
GtkWidget *tooltip_window;
int visibility_notify_id;
GtkWidget *toplevel;
guint visibility_first : 1;
/* Input context for dead key support */
GtkIMContext *im_context;
ECanvasItemGrabCancelled grab_cancelled_cb;
guint grab_cancelled_check_id;
guint32 grab_cancelled_time;
gpointer grab_cancelled_data;
};
struct _ECanvasClass
{
GnomeCanvasClass parent_class;
void (* reflow) (ECanvas *canvas);
};
GType e_canvas_get_type (void);
GtkWidget *e_canvas_new (void);
/* Used to send all of the keystroke events to a specific item as well as
* GDK_FOCUS_CHANGE events.
*/
void e_canvas_item_grab_focus (GnomeCanvasItem *item,
gboolean widget_too);
void e_canvas_item_request_reflow (GnomeCanvasItem *item);
void e_canvas_item_request_parent_reflow (GnomeCanvasItem *item);
void e_canvas_item_set_reflow_callback (GnomeCanvasItem *item,
ECanvasItemReflowFunc func);
void e_canvas_item_set_selection_callback (GnomeCanvasItem *item,
ECanvasItemSelectionFunc func);
void e_canvas_item_set_selection_compare_callback (GnomeCanvasItem *item,
ECanvasItemSelectionCompareFunc func);
void e_canvas_item_set_cursor (GnomeCanvasItem *item,
gpointer id);
void e_canvas_item_add_selection (GnomeCanvasItem *item,
gpointer id);
void e_canvas_item_remove_selection (GnomeCanvasItem *item,
gpointer id);
int e_canvas_item_grab (ECanvas *canvas,
GnomeCanvasItem *item,
guint event_mask,
GdkCursor *cursor,
guint32 etime,
ECanvasItemGrabCancelled cancelled,
gpointer cancelled_data);
void e_canvas_item_ungrab (ECanvas *canvas,
GnomeCanvasItem *item,
guint32 etime);
/* Not implemented yet. */
void e_canvas_item_set_cursor_end (GnomeCanvasItem *item,
gpointer id);
void e_canvas_popup_tooltip (ECanvas *canvas,
GtkWidget *widget,
int x,
int y);
void e_canvas_hide_tooltip (ECanvas *canvas);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __E_CANVAS_H__ */
|
