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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
#define __SP_WIDGET_C__
/*
* Abstract base class for dynamic control widgets
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* bulia byak <buliabyak@users.sf.net>
*
* Copyright (C) 1999-2002 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "macros.h"
#include "../document.h"
#include "sp-widget.h"
enum {
CONSTRUCT,
MODIFY_SELECTION,
CHANGE_SELECTION,
SET_SELECTION,
LAST_SIGNAL
};
static void sp_widget_class_init (SPWidgetClass *klass);
static void sp_widget_init (SPWidget *widget);
static void sp_widget_destroy (GtkObject *object);
static void sp_widget_show (GtkWidget *widget);
static void sp_widget_hide (GtkWidget *widget);
static gint sp_widget_expose (GtkWidget *widget, GdkEventExpose *event);
static void sp_widget_size_request (GtkWidget *widget, GtkRequisition *requisition);
static void sp_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
static void sp_widget_modify_selection (Inkscape::Application *inkscape, Inkscape::Selection *selection, guint flags, SPWidget *spw);
static void sp_widget_change_selection (Inkscape::Application *inkscape, Inkscape::Selection *selection, SPWidget *spw);
static void sp_widget_set_selection (Inkscape::Application *inkscape, Inkscape::Selection *selection, SPWidget *spw);
static GtkBinClass *parent_class;
static guint signals[LAST_SIGNAL] = {0};
GType
sp_widget_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (SPWidgetClass),
NULL, NULL,
(GClassInitFunc) sp_widget_class_init,
NULL, NULL,
sizeof (SPWidget),
0,
(GInstanceInitFunc) sp_widget_init,
NULL
};
type = g_type_register_static (GTK_TYPE_BIN,
"SPWidget",
&info,
(GTypeFlags)0);
}
return type;
}
static void
sp_widget_class_init (SPWidgetClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass *) klass;
widget_class = (GtkWidgetClass *) klass;
parent_class = (GtkBinClass*)g_type_class_peek_parent (klass);
object_class->destroy = sp_widget_destroy;
signals[CONSTRUCT] = g_signal_new ("construct",
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (SPWidgetClass, construct),
NULL, NULL,
gtk_marshal_NONE__NONE,
G_TYPE_NONE, 0);
signals[CHANGE_SELECTION] = g_signal_new ("change_selection",
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (SPWidgetClass, change_selection),
NULL, NULL,
gtk_marshal_NONE__POINTER,
G_TYPE_NONE, 1,
GTK_TYPE_POINTER);
signals[MODIFY_SELECTION] = g_signal_new ("modify_selection",
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (SPWidgetClass, modify_selection),
NULL, NULL,
gtk_marshal_NONE__POINTER_UINT,
G_TYPE_NONE, 2,
GTK_TYPE_POINTER, GTK_TYPE_UINT);
signals[SET_SELECTION] = g_signal_new ("set_selection",
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (SPWidgetClass, set_selection),
NULL, NULL,
gtk_marshal_NONE__POINTER,
G_TYPE_NONE, 1,
GTK_TYPE_POINTER);
widget_class->show = sp_widget_show;
widget_class->hide = sp_widget_hide;
widget_class->expose_event = sp_widget_expose;
widget_class->size_request = sp_widget_size_request;
widget_class->size_allocate = sp_widget_size_allocate;
}
static void
sp_widget_init (SPWidget *spw)
{
spw->inkscape = NULL;
}
static void
sp_widget_destroy (GtkObject *object)
{
SPWidget *spw;
spw = (SPWidget *) object;
if (spw->inkscape) {
/* Disconnect signals */
// the checks are necessary because when destroy is caused by the the program shutting down,
// the inkscape object may already be (partly?) invalid --bb
if (G_IS_OBJECT(spw->inkscape) && G_OBJECT_GET_CLASS(G_OBJECT(spw->inkscape)))
sp_signal_disconnect_by_data (spw->inkscape, spw);
spw->inkscape = NULL;
}
if (((GtkObjectClass *) parent_class)->destroy)
(* ((GtkObjectClass *) parent_class)->destroy) (object);
}
static void
sp_widget_show (GtkWidget *widget)
{
SPWidget *spw;
spw = SP_WIDGET (widget);
if (spw->inkscape) {
/* Connect signals */
g_signal_connect (G_OBJECT (spw->inkscape), "modify_selection", G_CALLBACK (sp_widget_modify_selection), spw);
g_signal_connect (G_OBJECT (spw->inkscape), "change_selection", G_CALLBACK (sp_widget_change_selection), spw);
g_signal_connect (G_OBJECT (spw->inkscape), "set_selection", G_CALLBACK (sp_widget_set_selection), spw);
}
if (((GtkWidgetClass *) parent_class)->show)
(* ((GtkWidgetClass *) parent_class)->show) (widget);
}
static void
sp_widget_hide (GtkWidget *widget)
{
SPWidget *spw;
spw = SP_WIDGET (widget);
if (spw->inkscape) {
/* Disconnect signals */
sp_signal_disconnect_by_data (spw->inkscape, spw);
}
if (((GtkWidgetClass *) parent_class)->hide)
(* ((GtkWidgetClass *) parent_class)->hide) (widget);
}
static gint
sp_widget_expose (GtkWidget *widget, GdkEventExpose *event)
{
GtkBin *bin;
bin = GTK_BIN (widget);
if ( bin->child ) {
gtk_container_propagate_expose (GTK_CONTAINER(widget), bin->child, event);
}
/*
if ((bin->child) && (!gtk_widget_get_has_window (bin->child))) {
GdkEventExpose ce;
ce = *event;
gtk_widget_event (bin->child, (GdkEvent *) &ce);
}
*/
return FALSE;
}
static void
sp_widget_size_request (GtkWidget *widget, GtkRequisition *requisition)
{
if (((GtkBin *) widget)->child)
gtk_widget_size_request (((GtkBin *) widget)->child, requisition);
}
static void
sp_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
widget->allocation = *allocation;
if (((GtkBin *) widget)->child)
gtk_widget_size_allocate (((GtkBin *) widget)->child, allocation);
}
/* Methods */
GtkWidget *
sp_widget_new_global (Inkscape::Application *inkscape)
{
SPWidget *spw;
spw = (SPWidget*)g_object_new (SP_TYPE_WIDGET, NULL);
if (!sp_widget_construct_global (spw, inkscape)) {
gtk_object_unref (GTK_OBJECT (spw));
return NULL;
}
return (GtkWidget *) spw;
}
GtkWidget *
sp_widget_construct_global (SPWidget *spw, Inkscape::Application *inkscape)
{
g_return_val_if_fail (!spw->inkscape, NULL);
spw->inkscape = inkscape;
if (gtk_widget_get_visible (GTK_WIDGET(spw))) {
g_signal_connect (G_OBJECT (inkscape), "modify_selection", G_CALLBACK (sp_widget_modify_selection), spw);
g_signal_connect (G_OBJECT (inkscape), "change_selection", G_CALLBACK (sp_widget_change_selection), spw);
g_signal_connect (G_OBJECT (inkscape), "set_selection", G_CALLBACK (sp_widget_set_selection), spw);
}
g_signal_emit (G_OBJECT (spw), signals[CONSTRUCT], 0);
return (GtkWidget *) spw;
}
static void
sp_widget_modify_selection (Inkscape::Application */*inkscape*/, Inkscape::Selection *selection, guint flags, SPWidget *spw)
{
g_signal_emit (G_OBJECT (spw), signals[MODIFY_SELECTION], 0, selection, flags);
}
static void
sp_widget_change_selection (Inkscape::Application */*inkscape*/, Inkscape::Selection *selection, SPWidget *spw)
{
g_signal_emit (G_OBJECT (spw), signals[CHANGE_SELECTION], 0, selection);
}
static void
sp_widget_set_selection (Inkscape::Application */*inkscape*/, Inkscape::Selection *selection, SPWidget *spw)
{
/* Emit "set_selection" signal */
g_signal_emit (G_OBJECT (spw), signals[SET_SELECTION], 0, selection);
/* Inkscape will force "change_selection" anyways */
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
|
