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Viewing changes to app/widgets/gimpcellrendererviewable.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2005-10-04 19:04:46 UTC
  • Revision ID: james.westby@ubuntu.com-20051004190446-ukh32kwk56s4sjhu
Tags: upstream-2.2.8
Import upstream version 2.2.8

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app/widgets/gimpcellrendererviewable.c
 
1
/* The GIMP -- an image manipulation program
 
2
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 
3
 *
 
4
 * gimpcellrendererviewable.c
 
5
 * Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
 
6
 *
 
7
 * This program is free software; you can redistribute it and/or modify
 
8
 * it under the terms of the GNU General Public License as published by
 
9
 * the Free Software Foundation; either version 2 of the License, or
 
10
 * (at your option) any later version.
 
11
 *
 
12
 * This program is distributed in the hope that it will be useful,
 
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
15
 * GNU General Public License for more details.
 
16
 *
 
17
 * You should have received a copy of the GNU General Public License
 
18
 * along with this program; if not, write to the Free Software
 
19
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
20
 */
 
21
 
 
22
#include <config.h>
 
23
 
 
24
#include <gtk/gtk.h>
 
25
 
 
26
#include "widgets-types.h"
 
27
 
 
28
#include "core/gimpmarshal.h"
 
29
#include "core/gimpviewable.h"
 
30
 
 
31
#include "gimpcellrendererviewable.h"
 
32
#include "gimpview-popup.h"
 
33
#include "gimpviewrenderer.h"
 
34
 
 
35
 
 
36
enum
 
37
{
 
38
  CLICKED,
 
39
  LAST_SIGNAL
 
40
};
 
41
 
 
42
enum
 
43
{
 
44
  PROP_0,
 
45
  PROP_RENDERER
 
46
};
 
47
 
 
48
 
 
49
static void gimp_cell_renderer_viewable_class_init (GimpCellRendererViewableClass *klass);
 
50
static void gimp_cell_renderer_viewable_init       (GimpCellRendererViewable      *cell);
 
51
 
 
52
static void gimp_cell_renderer_viewable_finalize     (GObject         *object);
 
53
static void gimp_cell_renderer_viewable_get_property (GObject         *object,
 
54
                                                      guint            param_id,
 
55
                                                      GValue          *value,
 
56
                                                      GParamSpec      *pspec);
 
57
static void gimp_cell_renderer_viewable_set_property (GObject         *object,
 
58
                                                      guint            param_id,
 
59
                                                      const GValue    *value,
 
60
                                                      GParamSpec      *pspec);
 
61
static void gimp_cell_renderer_viewable_get_size     (GtkCellRenderer *cell,
 
62
                                                      GtkWidget       *widget,
 
63
                                                      GdkRectangle    *rectangle,
 
64
                                                      gint            *x_offset,
 
65
                                                      gint            *y_offset,
 
66
                                                      gint            *width,
 
67
                                                      gint            *height);
 
68
static void gimp_cell_renderer_viewable_render       (GtkCellRenderer *cell,
 
69
                                                      GdkWindow       *window,
 
70
                                                      GtkWidget       *widget,
 
71
                                                      GdkRectangle    *background_area,
 
72
                                                      GdkRectangle    *cell_area,
 
73
                                                      GdkRectangle    *expose_area,
 
74
                                                      GtkCellRendererState flags);
 
75
static gboolean gimp_cell_renderer_viewable_activate (GtkCellRenderer *cell,
 
76
                                                      GdkEvent        *event,
 
77
                                                      GtkWidget       *widget,
 
78
                                                      const gchar     *path,
 
79
                                                      GdkRectangle    *background_area,
 
80
                                                      GdkRectangle    *cell_area,
 
81
                                                      GtkCellRendererState flags);
 
82
 
 
83
 
 
84
static guint viewable_cell_signals[LAST_SIGNAL] = { 0 };
 
85
 
 
86
static GtkCellRendererClass *parent_class = NULL;
 
87
 
 
88
 
 
89
GType
 
90
gimp_cell_renderer_viewable_get_type (void)
 
91
{
 
92
  static GType cell_type = 0;
 
93
 
 
94
  if (! cell_type)
 
95
    {
 
96
      static const GTypeInfo cell_info =
 
97
      {
 
98
        sizeof (GimpCellRendererViewableClass),
 
99
        NULL,           /* base_init */
 
100
        NULL,           /* base_finalize */
 
101
        (GClassInitFunc) gimp_cell_renderer_viewable_class_init,
 
102
        NULL,           /* class_finalize */
 
103
        NULL,           /* class_data */
 
104
        sizeof (GimpCellRendererViewable),
 
105
        0,              /* n_preallocs */
 
106
        (GInstanceInitFunc) gimp_cell_renderer_viewable_init,
 
107
      };
 
108
 
 
109
      cell_type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
 
110
                                          "GimpCellRendererViewable",
 
111
                                          &cell_info, 0);
 
112
    }
 
113
 
 
114
  return cell_type;
 
115
}
 
116
 
 
117
static void
 
118
gimp_cell_renderer_viewable_class_init (GimpCellRendererViewableClass *klass)
 
119
{
 
120
  GObjectClass         *object_class = G_OBJECT_CLASS (klass);
 
121
  GtkCellRendererClass *cell_class   = GTK_CELL_RENDERER_CLASS (klass);
 
122
 
 
123
  parent_class = g_type_class_peek_parent (klass);
 
124
 
 
125
  viewable_cell_signals[CLICKED] =
 
126
    g_signal_new ("clicked",
 
127
                  G_OBJECT_CLASS_TYPE (object_class),
 
128
                  G_SIGNAL_RUN_LAST,
 
129
                  G_STRUCT_OFFSET (GimpCellRendererViewableClass, clicked),
 
130
                  NULL, NULL,
 
131
                  gimp_marshal_VOID__STRING_FLAGS,
 
132
                  G_TYPE_NONE, 2,
 
133
                  G_TYPE_STRING,
 
134
                  GDK_TYPE_MODIFIER_TYPE);
 
135
 
 
136
  object_class->finalize     = gimp_cell_renderer_viewable_finalize;
 
137
  object_class->get_property = gimp_cell_renderer_viewable_get_property;
 
138
  object_class->set_property = gimp_cell_renderer_viewable_set_property;
 
139
 
 
140
  cell_class->get_size       = gimp_cell_renderer_viewable_get_size;
 
141
  cell_class->render         = gimp_cell_renderer_viewable_render;
 
142
  cell_class->activate       = gimp_cell_renderer_viewable_activate;
 
143
 
 
144
  klass->clicked             = NULL;
 
145
 
 
146
  g_object_class_install_property (object_class,
 
147
                                   PROP_RENDERER,
 
148
                                   g_param_spec_object ("renderer",
 
149
                                                        NULL, NULL,
 
150
                                                        GIMP_TYPE_VIEW_RENDERER,
 
151
                                                        G_PARAM_READWRITE));
 
152
}
 
153
 
 
154
static void
 
155
gimp_cell_renderer_viewable_init (GimpCellRendererViewable *cellviewable)
 
156
{
 
157
  GTK_CELL_RENDERER (cellviewable)->mode = GTK_CELL_RENDERER_MODE_ACTIVATABLE;
 
158
}
 
159
 
 
160
static void
 
161
gimp_cell_renderer_viewable_finalize (GObject *object)
 
162
{
 
163
  GimpCellRendererViewable *cell = GIMP_CELL_RENDERER_VIEWABLE (object);
 
164
 
 
165
  if (cell->renderer)
 
166
    {
 
167
      g_object_unref (cell->renderer);
 
168
      cell->renderer = NULL;
 
169
    }
 
170
 
 
171
  G_OBJECT_CLASS (parent_class)->finalize (object);
 
172
}
 
173
 
 
174
static void
 
175
gimp_cell_renderer_viewable_get_property (GObject    *object,
 
176
                                          guint       param_id,
 
177
                                          GValue     *value,
 
178
                                          GParamSpec *pspec)
 
179
{
 
180
  GimpCellRendererViewable *cell = GIMP_CELL_RENDERER_VIEWABLE (object);
 
181
 
 
182
  switch (param_id)
 
183
    {
 
184
    case PROP_RENDERER:
 
185
      g_value_set_object (value, cell->renderer);
 
186
      break;
 
187
 
 
188
    default:
 
189
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 
190
      break;
 
191
    }
 
192
}
 
193
 
 
194
static void
 
195
gimp_cell_renderer_viewable_set_property (GObject      *object,
 
196
                                          guint         param_id,
 
197
                                          const GValue *value,
 
198
                                          GParamSpec   *pspec)
 
199
{
 
200
  GimpCellRendererViewable *cell = GIMP_CELL_RENDERER_VIEWABLE (object);
 
201
 
 
202
  switch (param_id)
 
203
    {
 
204
    case PROP_RENDERER:
 
205
      {
 
206
        GimpViewRenderer *renderer;
 
207
 
 
208
        renderer = (GimpViewRenderer *) g_value_dup_object (value);
 
209
        if (cell->renderer)
 
210
          g_object_unref (cell->renderer);
 
211
        cell->renderer = renderer;
 
212
      }
 
213
      break;
 
214
 
 
215
    default:
 
216
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 
217
      break;
 
218
    }
 
219
}
 
220
 
 
221
static void
 
222
gimp_cell_renderer_viewable_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
  GimpCellRendererViewable *cellviewable;
 
231
  gint                      view_width  = 0;
 
232
  gint                      view_height = 0;
 
233
  gint                      calc_width;
 
234
  gint                      calc_height;
 
235
 
 
236
  cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
 
237
 
 
238
  if (cellviewable->renderer)
 
239
    {
 
240
      view_width  = (cellviewable->renderer->width  +
 
241
                     2 * cellviewable->renderer->border_width);
 
242
      view_height = (cellviewable->renderer->height +
 
243
                     2 * cellviewable->renderer->border_width);
 
244
    }
 
245
 
 
246
  calc_width  = (gint) cell->xpad * 2 + view_width;
 
247
  calc_height = (gint) cell->ypad * 2 + view_height;
 
248
 
 
249
  if (x_offset) *x_offset = 0;
 
250
  if (y_offset) *y_offset = 0;
 
251
 
 
252
  if (cell_area && view_width > 0 && view_height > 0)
 
253
    {
 
254
      if (x_offset)
 
255
        {
 
256
          *x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
 
257
                        1.0 - cell->xalign : cell->xalign) *
 
258
                       (cell_area->width - calc_width - 2 * cell->xpad));
 
259
          *x_offset = (MAX (*x_offset, 0) + cell->xpad);
 
260
        }
 
261
      if (y_offset)
 
262
        {
 
263
          *y_offset = (cell->yalign *
 
264
                       (cell_area->height - calc_height - 2 * cell->ypad));
 
265
          *y_offset = (MAX (*y_offset, 0) + cell->ypad);
 
266
        }
 
267
    }
 
268
 
 
269
  if (width)  *width  = calc_width;
 
270
  if (height) *height = calc_height;
 
271
}
 
272
 
 
273
static void
 
274
gimp_cell_renderer_viewable_render (GtkCellRenderer      *cell,
 
275
                                    GdkWindow            *window,
 
276
                                    GtkWidget            *widget,
 
277
                                    GdkRectangle         *background_area,
 
278
                                    GdkRectangle         *cell_area,
 
279
                                    GdkRectangle         *expose_area,
 
280
                                    GtkCellRendererState  flags)
 
281
{
 
282
  GimpCellRendererViewable *cellviewable;
 
283
 
 
284
  cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
 
285
 
 
286
  if (cellviewable->renderer)
 
287
    {
 
288
      if (! (flags & GTK_CELL_RENDERER_SELECTED))
 
289
        {
 
290
          /* this is an ugly hack. The cell state should be passed to
 
291
           * the view renderer, so that it can adjust its border.
 
292
           * (or something like this) */
 
293
          if (cellviewable->renderer->border_type == GIMP_VIEW_BORDER_WHITE)
 
294
            gimp_view_renderer_set_border_type (cellviewable->renderer,
 
295
                                                GIMP_VIEW_BORDER_BLACK);
 
296
 
 
297
          gimp_view_renderer_remove_idle (cellviewable->renderer);
 
298
        }
 
299
 
 
300
      gimp_view_renderer_draw (cellviewable->renderer, window, widget,
 
301
                               cell_area, expose_area);
 
302
    }
 
303
}
 
304
 
 
305
static gboolean
 
306
gimp_cell_renderer_viewable_activate (GtkCellRenderer      *cell,
 
307
                                      GdkEvent             *event,
 
308
                                      GtkWidget            *widget,
 
309
                                      const gchar          *path,
 
310
                                      GdkRectangle         *background_area,
 
311
                                      GdkRectangle         *cell_area,
 
312
                                      GtkCellRendererState  flags)
 
313
{
 
314
  GimpCellRendererViewable *cellviewable;
 
315
 
 
316
  cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
 
317
 
 
318
  if (cellviewable->renderer)
 
319
    {
 
320
      GdkModifierType state = 0;
 
321
 
 
322
      if (event && ((GdkEventAny *) event)->type == GDK_BUTTON_PRESS)
 
323
        state = ((GdkEventButton *) event)->state;
 
324
 
 
325
      if (! event ||
 
326
          (((GdkEventAny *) event)->type == GDK_BUTTON_PRESS &&
 
327
           ((GdkEventButton *) event)->button == 1))
 
328
        {
 
329
          gimp_cell_renderer_viewable_clicked (cellviewable, path, state);
 
330
 
 
331
          return TRUE;
 
332
        }
 
333
    }
 
334
 
 
335
  return FALSE;
 
336
}
 
337
 
 
338
GtkCellRenderer *
 
339
gimp_cell_renderer_viewable_new (void)
 
340
{
 
341
  return g_object_new (GIMP_TYPE_CELL_RENDERER_VIEWABLE, NULL);
 
342
}
 
343
 
 
344
void
 
345
gimp_cell_renderer_viewable_clicked (GimpCellRendererViewable *cell,
 
346
                                     const gchar              *path,
 
347
                                     GdkModifierType           state)
 
348
{
 
349
  GdkEvent *event;
 
350
 
 
351
  g_return_if_fail (GIMP_IS_CELL_RENDERER_VIEWABLE (cell));
 
352
  g_return_if_fail (path != NULL);
 
353
 
 
354
  g_signal_emit (cell, viewable_cell_signals[CLICKED], 0, path, state);
 
355
 
 
356
  event = gtk_get_current_event ();
 
357
 
 
358
  if (event)
 
359
    {
 
360
      GdkEventButton *bevent = (GdkEventButton *) event;
 
361
 
 
362
      if (bevent->type == GDK_BUTTON_PRESS &&
 
363
          (bevent->button == 1 || bevent->button == 2))
 
364
        {
 
365
          gimp_view_popup_show (gtk_get_event_widget (event),
 
366
                                bevent,
 
367
                                cell->renderer->viewable,
 
368
                                cell->renderer->width,
 
369
                                cell->renderer->height,
 
370
                                cell->renderer->dot_for_dot);
 
371
        }
 
372
 
 
373
      gdk_event_free (event);
 
374
    }
 
375
}