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Viewing changes to app/widgets/gimpcellrendereraccel.c

  • Committer: Bazaar Package Importer
  • Author(s): Daniel Holbach
  • Date: 2007-05-02 16:33:03 UTC
  • mfrom: (1.1.4 upstream)
  • Revision ID: james.westby@ubuntu.com-20070502163303-bvzhjzbpw8qglc4y
Tags: 2.3.16-1ubuntu1
* Resynchronized with Debian, remaining Ubuntu changes:
  - debian/rules: i18n magic.
* debian/control.in:
  - Maintainer: Ubuntu Core Developers <ubuntu-devel@lists.ubuntu.com>
* debian/patches/02_help-message.patch,
  debian/patches/03_gimp.desktop.in.in.patch,
  debian/patches/10_dont_show_wizard.patch: updated.
* debian/patches/04_composite-signedness.patch,
  debian/patches/05_add-letter-spacing.patch: dropped, used upstream.

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app/widgets/gimpcellrendereraccel.c
1
 
/* The GIMP -- an image manipulation program
2
 
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3
 
 *
4
 
 * gimpcellrendereraccel.c
5
 
 * Copyright (C) 2004  Michael Natterer <mitch@gimp.org>
6
 
 *
7
 
 * Derived from: libegg/libegg/treeviewutils/eggcellrendererkeys.c
8
 
 * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
9
 
 *
10
 
 * This program is free software; you can redistribute it and/or modify
11
 
 * it under the terms of the GNU General Public License as published by
12
 
 * the Free Software Foundation; either version 2 of the License, or
13
 
 * (at your option) any later version.
14
 
 *
15
 
 * This program is distributed in the hope that it will be useful,
16
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
 
 * GNU General Public License for more details.
19
 
 *
20
 
 * You should have received a copy of the GNU General Public License
21
 
 * along with this program; if not, write to the Free Software
22
 
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23
 
 */
24
 
 
25
 
#include "config.h"
26
 
 
27
 
#include <gtk/gtk.h>
28
 
#include <gdk/gdkkeysyms.h>
29
 
#include <gdk/gdkkeysyms.h>
30
 
 
31
 
#include "widgets-types.h"
32
 
 
33
 
#include "core/gimpmarshal.h"
34
 
 
35
 
#include "gimpcellrendereraccel.h"
36
 
#include "gimpwidgets-utils.h"
37
 
 
38
 
#include "gimp-intl.h"
39
 
 
40
 
 
41
 
enum
42
 
{
43
 
  ACCEL_EDITED,
44
 
  LAST_SIGNAL
45
 
};
46
 
 
47
 
enum
48
 
{
49
 
  PROP_0,
50
 
  PROP_ACCEL_KEY,
51
 
  PROP_ACCEL_MASK
52
 
};
53
 
 
54
 
#define GIMP_CELL_RENDERER_ACCEL_PATH "gimp-cell-renderer-accel-path"
55
 
 
56
 
 
57
 
static void   gimp_cell_renderer_accel_init       (GimpCellRendererAccel      *cell);
58
 
static void   gimp_cell_renderer_accel_class_init (GimpCellRendererAccelClass *klass);
59
 
 
60
 
static void   gimp_cell_renderer_accel_finalize     (GObject         *object);
61
 
static void   gimp_cell_renderer_accel_set_property (GObject         *object,
62
 
                                                     guint            param_id,
63
 
                                                     const GValue    *value,
64
 
                                                     GParamSpec      *pspec);
65
 
static void   gimp_cell_renderer_accel_get_property (GObject         *object,
66
 
                                                     guint            param_id,
67
 
                                                     GValue          *value,
68
 
                                                     GParamSpec      *pspec);
69
 
 
70
 
static void   gimp_cell_renderer_accel_get_size     (GtkCellRenderer *cell,
71
 
                                                     GtkWidget       *widget,
72
 
                                                     GdkRectangle    *cell_area,
73
 
                                                     gint            *x_offset,
74
 
                                                     gint            *y_offset,
75
 
                                                     gint            *width,
76
 
                                                     gint            *height);
77
 
static GtkCellEditable *
78
 
             gimp_cell_renderer_accel_start_editing (GtkCellRenderer *cell,
79
 
                                                     GdkEvent        *event,
80
 
                                                     GtkWidget       *widget,
81
 
                                                     const gchar     *path,
82
 
                                                     GdkRectangle    *background_area,
83
 
                                                     GdkRectangle    *cell_area,
84
 
                                                     GtkCellRendererState  flags);
85
 
 
86
 
 
87
 
static guint accel_cell_signals[LAST_SIGNAL] = { 0 };
88
 
 
89
 
static GtkCellRendererTextClass *parent_class = NULL;
90
 
 
91
 
 
92
 
GType
93
 
gimp_cell_renderer_accel_get_type (void)
94
 
{
95
 
  static GType type = 0;
96
 
 
97
 
  if (! type)
98
 
    {
99
 
      static const GTypeInfo info =
100
 
      {
101
 
        sizeof (GimpCellRendererAccelClass),
102
 
        NULL,           /* base_init */
103
 
        NULL,           /* base_finalize */
104
 
        (GClassInitFunc) gimp_cell_renderer_accel_class_init,
105
 
        NULL,           /* class_finalize */
106
 
        NULL,           /* class_data */
107
 
        sizeof (GimpCellRendererAccel),
108
 
        0,              /* n_preallocs */
109
 
        (GInstanceInitFunc) gimp_cell_renderer_accel_init
110
 
      };
111
 
 
112
 
      type = g_type_register_static (GTK_TYPE_CELL_RENDERER_TEXT,
113
 
                                     "GimpCellRendererAccel",
114
 
                                     &info, 0);
115
 
    }
116
 
 
117
 
  return type;
118
 
}
119
 
 
120
 
static void
121
 
gimp_cell_renderer_accel_init (GimpCellRendererAccel *cell)
122
 
{
123
 
}
124
 
 
125
 
static void
126
 
gimp_cell_renderer_accel_class_init (GimpCellRendererAccelClass *klass)
127
 
{
128
 
  GObjectClass         *object_class = G_OBJECT_CLASS (klass);
129
 
  GtkCellRendererClass *cell_class   = GTK_CELL_RENDERER_CLASS (klass);
130
 
 
131
 
  parent_class = g_type_class_peek_parent (object_class);
132
 
 
133
 
  accel_cell_signals[ACCEL_EDITED] =
134
 
    g_signal_new ("accel-edited",
135
 
                  G_OBJECT_CLASS_TYPE (object_class),
136
 
                  G_SIGNAL_RUN_LAST,
137
 
                  G_STRUCT_OFFSET (GimpCellRendererAccelClass, accel_edited),
138
 
                  NULL, NULL,
139
 
                  gimp_marshal_VOID__STRING_BOOLEAN_UINT_FLAGS,
140
 
                  G_TYPE_NONE, 4,
141
 
                  G_TYPE_STRING,
142
 
                  G_TYPE_BOOLEAN,
143
 
                  G_TYPE_UINT,
144
 
                  GDK_TYPE_MODIFIER_TYPE);
145
 
 
146
 
  object_class->finalize     = gimp_cell_renderer_accel_finalize;
147
 
  object_class->set_property = gimp_cell_renderer_accel_set_property;
148
 
  object_class->get_property = gimp_cell_renderer_accel_get_property;
149
 
 
150
 
  cell_class->get_size       = gimp_cell_renderer_accel_get_size;
151
 
  cell_class->start_editing  = gimp_cell_renderer_accel_start_editing;
152
 
 
153
 
  g_object_class_install_property (object_class, PROP_ACCEL_KEY,
154
 
                                   g_param_spec_uint ("accel-key", NULL, NULL,
155
 
                                                      0, G_MAXINT, 0,
156
 
                                                      G_PARAM_READWRITE |
157
 
                                                      G_PARAM_CONSTRUCT));
158
 
 
159
 
  g_object_class_install_property (object_class, PROP_ACCEL_MASK,
160
 
                                   g_param_spec_flags ("accel-mask", NULL, NULL,
161
 
                                                       GDK_TYPE_MODIFIER_TYPE,
162
 
                                                       0,
163
 
                                                       G_PARAM_READWRITE |
164
 
                                                       G_PARAM_CONSTRUCT));
165
 
}
166
 
 
167
 
static void
168
 
gimp_cell_renderer_accel_finalize (GObject *object)
169
 
{
170
 
  G_OBJECT_CLASS (parent_class)->finalize (object);
171
 
}
172
 
 
173
 
static void
174
 
gimp_cell_renderer_accel_set_property (GObject      *object,
175
 
                                       guint         param_id,
176
 
                                       const GValue *value,
177
 
                                       GParamSpec   *pspec)
178
 
{
179
 
  GimpCellRendererAccel *accel = GIMP_CELL_RENDERER_ACCEL (object);
180
 
 
181
 
  switch (param_id)
182
 
    {
183
 
    case PROP_ACCEL_KEY:
184
 
      gimp_cell_renderer_accel_set_accelerator (accel,
185
 
                                                g_value_get_uint (value),
186
 
                                                accel->accel_mask);
187
 
      break;
188
 
    case PROP_ACCEL_MASK:
189
 
      gimp_cell_renderer_accel_set_accelerator (accel,
190
 
                                                accel->accel_key,
191
 
                                                g_value_get_flags (value));
192
 
      break;
193
 
 
194
 
    default:
195
 
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
196
 
    }
197
 
}
198
 
 
199
 
static void
200
 
gimp_cell_renderer_accel_get_property (GObject    *object,
201
 
                                       guint       param_id,
202
 
                                       GValue     *value,
203
 
                                       GParamSpec *pspec)
204
 
{
205
 
  GimpCellRendererAccel *accel = GIMP_CELL_RENDERER_ACCEL (object);
206
 
 
207
 
  switch (param_id)
208
 
    {
209
 
    case PROP_ACCEL_KEY:
210
 
      g_value_set_uint (value, accel->accel_key);
211
 
      break;
212
 
    case PROP_ACCEL_MASK:
213
 
      g_value_set_flags (value, accel->accel_mask);
214
 
      break;
215
 
 
216
 
    default:
217
 
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
218
 
    }
219
 
}
220
 
 
221
 
static void
222
 
gimp_cell_renderer_accel_get_size (GtkCellRenderer *cell,
223
 
                                   GtkWidget       *widget,
224
 
                                   GdkRectangle    *cell_area,
225
 
                                   gint            *x_offset,
226
 
                                   gint            *y_offset,
227
 
                                   gint            *width,
228
 
                                   gint            *height)
229
 
{
230
 
  GimpCellRendererAccel *accel = GIMP_CELL_RENDERER_ACCEL (cell);
231
 
  GtkRequisition         requisition;
232
 
 
233
 
  if (! accel->sizing_label)
234
 
    accel->sizing_label = gtk_label_new (_("Type a new accelerator, "
235
 
                                           "or press Backspace to clear"));
236
 
 
237
 
  gtk_widget_size_request (accel->sizing_label, &requisition);
238
 
 
239
 
  GTK_CELL_RENDERER_CLASS (parent_class)->get_size (cell, widget, cell_area,
240
 
                                                    x_offset, y_offset,
241
 
                                                    width, height);
242
 
 
243
 
  /* FIXME: need to take the cell_area et al. into account */
244
 
  if (width)
245
 
    *width = MAX (*width, requisition.width);
246
 
  if (height)
247
 
    *height = MAX (*height, requisition.height);
248
 
}
249
 
 
250
 
/* FIXME: Currently we don't differentiate between a 'bogus' key (like tab in
251
 
 * GTK mode) and a removed key.
252
 
 */
253
 
 
254
 
static gboolean
255
 
grab_key_callback (GtkWidget             *widget,
256
 
                   GdkEventKey           *event,
257
 
                   GimpCellRendererAccel *accel)
258
 
{
259
 
  GdkDisplay      *display;
260
 
  guint            accel_key;
261
 
  GdkModifierType  accel_mods;
262
 
  gchar           *path;
263
 
  gboolean         delete = FALSE;
264
 
  gboolean         edited = FALSE;
265
 
  GdkModifierType  consumed_modifiers;
266
 
 
267
 
  switch (event->keyval)
268
 
    {
269
 
    case GDK_Shift_L:
270
 
    case GDK_Shift_R:
271
 
    case GDK_Control_L:
272
 
    case GDK_Control_R:
273
 
    case GDK_Alt_L:
274
 
    case GDK_Alt_R:
275
 
      return TRUE;
276
 
 
277
 
    case GDK_Delete:
278
 
    case GDK_KP_Delete:
279
 
    case GDK_BackSpace:
280
 
      delete = TRUE;
281
 
      break;
282
 
    default:
283
 
      break;
284
 
    }
285
 
 
286
 
  display = gtk_widget_get_display (widget);
287
 
 
288
 
  gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
289
 
                                       event->hardware_keycode,
290
 
                                       event->state,
291
 
                                       event->group,
292
 
                                       NULL, NULL, NULL, &consumed_modifiers);
293
 
 
294
 
  accel_key  = gdk_keyval_to_lower (event->keyval);
295
 
  accel_mods = (event->state                            &
296
 
                gtk_accelerator_get_default_mod_mask () &
297
 
                ~consumed_modifiers);
298
 
 
299
 
  if (accel_key == GDK_ISO_Left_Tab)
300
 
    accel_key = GDK_Tab;
301
 
 
302
 
  /* If lowercasing affects the keysym, then we need to include SHIFT
303
 
   * in the modifiers, We re-upper case when we match against the
304
 
   * keyval, but display and save in caseless form.
305
 
   */
306
 
  if (accel_key != event->keyval)
307
 
    accel_mods |= GDK_SHIFT_MASK;
308
 
 
309
 
  if (accel_key != GDK_Escape)
310
 
    {
311
 
      if (delete || ! gtk_accelerator_valid (accel_key, accel_mods))
312
 
        {
313
 
          accel_key  = 0;
314
 
          accel_mods = 0;
315
 
        }
316
 
 
317
 
      edited = TRUE;
318
 
    }
319
 
 
320
 
  path = g_strdup (g_object_get_data (G_OBJECT (accel->edit_widget),
321
 
                                      GIMP_CELL_RENDERER_ACCEL_PATH));
322
 
 
323
 
  gdk_display_keyboard_ungrab (display, event->time);
324
 
  gdk_display_pointer_ungrab (display, event->time);
325
 
 
326
 
  gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (accel->edit_widget));
327
 
  gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (accel->edit_widget));
328
 
  accel->edit_widget = NULL;
329
 
  accel->grab_widget = NULL;
330
 
 
331
 
  if (edited)
332
 
    g_signal_emit (accel, accel_cell_signals[ACCEL_EDITED], 0,
333
 
                   path, delete, accel_key, accel_mods);
334
 
 
335
 
  g_free (path);
336
 
 
337
 
  return TRUE;
338
 
}
339
 
 
340
 
static void
341
 
ungrab_stuff (GtkWidget             *widget,
342
 
              GimpCellRendererAccel *accel)
343
 
{
344
 
  GdkDisplay *display = gtk_widget_get_display (widget);
345
 
 
346
 
  gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
347
 
  gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
348
 
 
349
 
  g_signal_handlers_disconnect_by_func (accel->grab_widget,
350
 
                                        G_CALLBACK (grab_key_callback),
351
 
                                        accel);
352
 
}
353
 
 
354
 
static void
355
 
pointless_eventbox_start_editing (GtkCellEditable *cell_editable,
356
 
                                  GdkEvent        *event)
357
 
{
358
 
  /* do nothing, because we are pointless */
359
 
}
360
 
 
361
 
static void
362
 
pointless_eventbox_cell_editable_init (GtkCellEditableIface *iface)
363
 
{
364
 
  iface->start_editing = pointless_eventbox_start_editing;
365
 
}
366
 
 
367
 
static GType
368
 
pointless_eventbox_subclass_get_type (void)
369
 
{
370
 
  static GType type = 0;
371
 
 
372
 
  if (! type)
373
 
    {
374
 
      static const GTypeInfo info =
375
 
      {
376
 
        sizeof (GtkEventBoxClass),
377
 
        NULL,           /* base_init      */
378
 
        NULL,           /* base_finalize  */
379
 
        NULL,           /* class_init     */
380
 
        NULL,           /* class_finalize */
381
 
        NULL,           /* class_data     */
382
 
        sizeof (GtkEventBox),
383
 
        0,              /* n_preallocs    */
384
 
        NULL            /* instance init  */
385
 
      };
386
 
 
387
 
      static const GInterfaceInfo editable_info =
388
 
      {
389
 
        (GInterfaceInitFunc) pointless_eventbox_cell_editable_init,
390
 
        NULL, NULL
391
 
      };
392
 
 
393
 
      type = g_type_register_static (GTK_TYPE_EVENT_BOX,
394
 
                                     "GimpCellEditableEventBox",
395
 
                                     &info, 0);
396
 
 
397
 
      g_type_add_interface_static (type, GTK_TYPE_CELL_EDITABLE,
398
 
                                   &editable_info);
399
 
    }
400
 
 
401
 
  return type;
402
 
}
403
 
 
404
 
static GtkCellEditable *
405
 
gimp_cell_renderer_accel_start_editing (GtkCellRenderer      *cell,
406
 
                                        GdkEvent             *event,
407
 
                                        GtkWidget            *widget,
408
 
                                        const gchar          *path,
409
 
                                        GdkRectangle         *background_area,
410
 
                                        GdkRectangle         *cell_area,
411
 
                                        GtkCellRendererState  flags)
412
 
{
413
 
  GtkCellRendererText   *celltext = GTK_CELL_RENDERER_TEXT (cell);
414
 
  GimpCellRendererAccel *accel    = GIMP_CELL_RENDERER_ACCEL (cell);
415
 
  GtkWidget             *label;
416
 
  GtkWidget             *eventbox;
417
 
 
418
 
  if (! celltext->editable)
419
 
    return NULL;
420
 
 
421
 
  g_return_val_if_fail (widget->window != NULL, NULL);
422
 
 
423
 
  if (gdk_keyboard_grab (widget->window, FALSE,
424
 
                         gdk_event_get_time (event)) != GDK_GRAB_SUCCESS)
425
 
    return NULL;
426
 
 
427
 
  if (gdk_pointer_grab (widget->window, FALSE,
428
 
                        GDK_BUTTON_PRESS_MASK,
429
 
                        NULL, NULL,
430
 
                        gdk_event_get_time (event)) != GDK_GRAB_SUCCESS)
431
 
    {
432
 
      gdk_display_keyboard_ungrab (gtk_widget_get_display (widget),
433
 
                                   gdk_event_get_time (event));
434
 
      return NULL;
435
 
    }
436
 
 
437
 
  accel->grab_widget = widget;
438
 
 
439
 
  g_signal_connect (widget, "key_press_event",
440
 
                    G_CALLBACK (grab_key_callback),
441
 
                    accel);
442
 
 
443
 
  eventbox = g_object_new (pointless_eventbox_subclass_get_type (), NULL);
444
 
  accel->edit_widget = eventbox;
445
 
  g_object_add_weak_pointer (G_OBJECT (accel->edit_widget),
446
 
                             (void **) &accel->edit_widget);
447
 
 
448
 
  label = gtk_label_new (NULL);
449
 
  gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
450
 
 
451
 
  gtk_widget_modify_bg (eventbox, GTK_STATE_NORMAL,
452
 
                        &widget->style->bg[GTK_STATE_SELECTED]);
453
 
 
454
 
  gtk_widget_modify_fg (label, GTK_STATE_NORMAL,
455
 
                        &widget->style->fg[GTK_STATE_SELECTED]);
456
 
 
457
 
  if (accel->accel_key != 0)
458
 
    gtk_label_set_text (GTK_LABEL (label),
459
 
                        _("Type a new accelerator, or press Backspace to clear"));
460
 
  else
461
 
    gtk_label_set_text (GTK_LABEL (label),
462
 
                        _("Type a new accelerator"));
463
 
 
464
 
  gtk_container_add (GTK_CONTAINER (eventbox), label);
465
 
 
466
 
  g_object_set_data_full (G_OBJECT (accel->edit_widget),
467
 
                          GIMP_CELL_RENDERER_ACCEL_PATH,
468
 
                          g_strdup (path), g_free);
469
 
 
470
 
  gtk_widget_show_all (accel->edit_widget);
471
 
 
472
 
  g_signal_connect (accel->edit_widget, "unrealize",
473
 
                    G_CALLBACK (ungrab_stuff),
474
 
                    accel);
475
 
 
476
 
  accel->edit_key = accel->accel_key;
477
 
 
478
 
  return GTK_CELL_EDITABLE (accel->edit_widget);
479
 
}
480
 
 
481
 
 
482
 
/*  public functions  */
483
 
 
484
 
GtkCellRenderer *
485
 
gimp_cell_renderer_accel_new (void)
486
 
{
487
 
  return g_object_new (GIMP_TYPE_CELL_RENDERER_ACCEL, NULL);
488
 
}
489
 
 
490
 
void
491
 
gimp_cell_renderer_accel_set_accelerator (GimpCellRendererAccel *accel,
492
 
                                          guint                  accel_key,
493
 
                                          GdkModifierType        accel_mask)
494
 
{
495
 
  gboolean changed = FALSE;
496
 
 
497
 
  g_return_if_fail (GIMP_IS_CELL_RENDERER_ACCEL (accel));
498
 
 
499
 
  g_object_freeze_notify (G_OBJECT (accel));
500
 
 
501
 
  if (accel_key != accel->accel_key)
502
 
    {
503
 
      accel->accel_key = accel_key;
504
 
 
505
 
      g_object_notify (G_OBJECT (accel), "accel-key");
506
 
      changed = TRUE;
507
 
    }
508
 
 
509
 
  if (accel_mask != accel->accel_mask)
510
 
    {
511
 
      accel->accel_mask = accel_mask;
512
 
 
513
 
      g_object_notify (G_OBJECT (accel), "accel-mask");
514
 
      changed = TRUE;
515
 
    }
516
 
 
517
 
  g_object_thaw_notify (G_OBJECT (accel));
518
 
 
519
 
  if (changed)
520
 
    {
521
 
      gchar *text = gimp_get_accel_string (accel->accel_key,
522
 
                                           accel->accel_mask);
523
 
      g_object_set (accel, "text", text, NULL);
524
 
      g_free (text);
525
 
    }
526
 
}
527
 
 
528
 
void
529
 
gimp_cell_renderer_accel_get_accelerator (GimpCellRendererAccel *accel,
530
 
                                          guint                 *accel_key,
531
 
                                          GdkModifierType       *accel_mask)
532
 
{
533
 
  g_return_if_fail (GIMP_IS_CELL_RENDERER_ACCEL (accel));
534
 
 
535
 
  if (accel_key)
536
 
    *accel_key = accel->accel_key;
537
 
 
538
 
  if (accel_mask)
539
 
    *accel_mask = accel->accel_mask;
540
 
}