File: screenshot-dialog.c

package info (click to toggle)
mate-utils 1.8.1+dfsg1-2+deb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 13,676 kB
  • ctags: 3,560
  • sloc: ansic: 35,915; makefile: 765; sh: 136; xml: 89
file content (405 lines) | stat: -rw-r--r-- 11,155 bytes parent folder | download
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
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
/* screenshot-dialog.c - main MATE Screenshot dialog
 *
 * Copyright (C) 2001-2006  Jonathan Blandford <jrb@alum.mit.edu>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 */

#include <config.h>
#include <string.h>
#include <stdlib.h>

#include "screenshot-dialog.h"
#include "screenshot-save.h"
#include <gdk/gdkkeysyms.h>
#include <glib/gi18n.h>
#include <gio/gio.h>

enum {
  TYPE_IMAGE_PNG,
  TYPE_TEXT_URI_LIST,
  
  LAST_TYPE
};

static GtkTargetEntry drag_types[] =
{
  { "image/png", 0, TYPE_IMAGE_PNG },
  { "text/uri-list", 0, TYPE_TEXT_URI_LIST },
};

struct ScreenshotDialog
{
  GtkBuilder *ui;
  GdkPixbuf *screenshot;
  GdkPixbuf *preview_image;
  GtkWidget *save_widget;
  GtkWidget *filename_entry;
  gint drag_x;
  gint drag_y;
};

static gboolean
on_toplevel_key_press_event (GtkWidget *widget,
			     GdkEventKey *key)
{
  if (key->keyval == GDK_F1)
    {
      gtk_dialog_response (GTK_DIALOG (widget), GTK_RESPONSE_HELP);
      return TRUE;
    }

  return FALSE;
}

static void
on_preview_expose_event (GtkWidget      *drawing_area,
			 GdkEventExpose *event,
			 gpointer        data)
{
  ScreenshotDialog *dialog = data;
  GdkPixbuf *pixbuf = NULL;
  gboolean free_pixbuf = FALSE;
  cairo_t *cr;

  /* Stolen from GtkImage.  I really should just make the drawing area an
   * image some day */
  if (gtk_widget_get_state (drawing_area) != GTK_STATE_NORMAL)
    {
      GtkIconSource *source;

      source = gtk_icon_source_new ();
      gtk_icon_source_set_pixbuf (source, dialog->preview_image);
      gtk_icon_source_set_size (source, GTK_ICON_SIZE_SMALL_TOOLBAR);
      gtk_icon_source_set_size_wildcarded (source, FALSE);
                  
      pixbuf = gtk_style_render_icon (drawing_area->style,
				      source,
				      gtk_widget_get_direction (drawing_area),
				      gtk_widget_get_state (drawing_area),
				      (GtkIconSize) -1,
				      drawing_area,
				      "gtk-image");
      free_pixbuf = TRUE;
      gtk_icon_source_free (source);
    }
  else
    {
      pixbuf = g_object_ref (dialog->preview_image);
    }
  
  cr = gdk_cairo_create (drawing_area->window);
  gdk_cairo_region (cr, event->region);
  cairo_clip (cr);

  gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
  cairo_paint (cr);

  cairo_destroy (cr);

  g_object_unref (pixbuf);
}

static gboolean
on_preview_button_press_event (GtkWidget      *drawing_area,
			       GdkEventButton *event,
			       gpointer        data)
{
  ScreenshotDialog *dialog = data;

  dialog->drag_x = (int) event->x;
  dialog->drag_y = (int) event->y;

  return FALSE;
}

static gboolean
on_preview_button_release_event (GtkWidget      *drawing_area,
				 GdkEventButton *event,
				 gpointer        data)
{
  ScreenshotDialog *dialog = data;

  dialog->drag_x = 0;
  dialog->drag_y = 0;

  return FALSE;
}

static void
on_preview_configure_event (GtkWidget         *drawing_area,
			    GdkEventConfigure *event,
			    gpointer           data)
{
  ScreenshotDialog *dialog = data;

  if (dialog->preview_image)
    g_object_unref (G_OBJECT (dialog->preview_image));

  dialog->preview_image = gdk_pixbuf_scale_simple (dialog->screenshot,
						   event->width,
						   event->height,
						   GDK_INTERP_BILINEAR);
}

static void
drag_data_get (GtkWidget          *widget,
	       GdkDragContext     *context,
	       GtkSelectionData   *selection_data,
	       guint               info,
	       guint               time,
	       ScreenshotDialog   *dialog)
{
  if (info == TYPE_TEXT_URI_LIST)
    {
      gchar **uris;

      uris = g_new (gchar *, 2);
      uris[0] = g_strconcat ("file://",
                             screenshot_save_get_filename (),
                             NULL);
      uris[1] = NULL;
      
      gtk_selection_data_set_uris (selection_data, uris);
    }
  else if (info == TYPE_IMAGE_PNG)
    {
      gtk_selection_data_set_pixbuf (selection_data, dialog->screenshot);
    }
  else
    {
      g_warning ("Unknown type %d", info);
    }
}

static void
drag_begin (GtkWidget        *widget,
	    GdkDragContext   *context,
	    ScreenshotDialog *dialog)
{
  gtk_drag_set_icon_pixbuf (context, dialog->preview_image,
			    dialog->drag_x, dialog->drag_y);
}


ScreenshotDialog *
screenshot_dialog_new (GdkPixbuf *screenshot,
		       char      *initial_uri,
		       gboolean   take_window_shot)
{
  ScreenshotDialog *dialog;
  GtkWidget *toplevel;
  GtkWidget *preview_darea;
  GtkWidget *aspect_frame;
  GtkWidget *file_chooser_box;
  gint width, height;
  char *current_folder;
  char *current_name;
  char *ext;
  gint pos;
  GFile *tmp_file;
  GFile *parent_file;
  GError *error = NULL;
  guint res;

  tmp_file = g_file_new_for_uri (initial_uri);
  parent_file = g_file_get_parent (tmp_file);

  current_name = g_file_get_basename (tmp_file);
  current_folder = g_file_get_uri (parent_file);
  g_object_unref (tmp_file);
  g_object_unref (parent_file);

  dialog = g_new0 (ScreenshotDialog, 1);

  dialog->ui = gtk_builder_new ();
  res = gtk_builder_add_from_file (dialog->ui, UIDIR "/mate-screenshot.ui", &error);
  dialog->screenshot = screenshot;

  if (res == 0)
    {
      GtkWidget *dialog;
      dialog = gtk_message_dialog_new (NULL, 0,
				       GTK_MESSAGE_ERROR,
				       GTK_BUTTONS_OK,
				       _("Error loading UI definition file for the screenshot program: \n%s\n\n"
				         "Please check your installation of mate-utils."), error->message);
      gtk_dialog_run (GTK_DIALOG (dialog));

      g_error_free (error);
      gtk_widget_destroy (dialog);
      exit (1);
    }

  gtk_builder_set_translation_domain (dialog->ui, GETTEXT_PACKAGE);

  width = gdk_pixbuf_get_width (screenshot);
  height = gdk_pixbuf_get_height (screenshot);

  width /= 5;
  height /= 5;

  toplevel = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "toplevel"));
  aspect_frame = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "aspect_frame"));
  preview_darea = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "preview_darea"));
  dialog->filename_entry = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "filename_entry"));
  file_chooser_box = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "file_chooser_box"));

  dialog->save_widget = gtk_file_chooser_button_new (_("Select a folder"), GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
  gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (dialog->save_widget), FALSE);
  gtk_file_chooser_set_current_folder_uri (GTK_FILE_CHOOSER (dialog->save_widget), current_folder);
  gtk_entry_set_text (GTK_ENTRY (dialog->filename_entry), current_name);

  gtk_box_pack_start (GTK_BOX (file_chooser_box), dialog->save_widget, TRUE, TRUE, 0);
  g_free (current_folder);

  gtk_widget_set_size_request (preview_darea, width, height);
  gtk_aspect_frame_set (GTK_ASPECT_FRAME (aspect_frame), 0.0, 0.5,
			gdk_pixbuf_get_width (screenshot)/
			(gfloat) gdk_pixbuf_get_height (screenshot),
			FALSE);
  g_signal_connect (toplevel, "key_press_event", G_CALLBACK (on_toplevel_key_press_event), dialog);
  g_signal_connect (preview_darea, "expose_event", G_CALLBACK (on_preview_expose_event), dialog);
  g_signal_connect (preview_darea, "button_press_event", G_CALLBACK (on_preview_button_press_event), dialog);
  g_signal_connect (preview_darea, "button_release_event", G_CALLBACK (on_preview_button_release_event), dialog);
  g_signal_connect (preview_darea, "configure_event", G_CALLBACK (on_preview_configure_event), dialog);

  if (take_window_shot)
    gtk_frame_set_shadow_type (GTK_FRAME (aspect_frame), GTK_SHADOW_NONE);
  else
    gtk_frame_set_shadow_type (GTK_FRAME (aspect_frame), GTK_SHADOW_IN);

  /* setup dnd */
  g_signal_connect (G_OBJECT (preview_darea), "drag_begin",
		    G_CALLBACK (drag_begin), dialog);
  g_signal_connect (G_OBJECT (preview_darea), "drag_data_get",
		    G_CALLBACK (drag_data_get), dialog);

  gtk_widget_show_all (toplevel);

  /* select the name of the file but leave out the extension if there's any;
   * the dialog must be realized for select_region to work
   */
  ext = g_utf8_strrchr (current_name, -1, '.');
  if (ext)
    pos = g_utf8_strlen (current_name, -1) - g_utf8_strlen (ext, -1);
  else
    pos = -1;

  gtk_editable_select_region (GTK_EDITABLE (dialog->filename_entry),
			      0,
			      pos);
  
  g_free (current_name);

  return dialog;
}

void
screenshot_dialog_focus_entry (ScreenshotDialog *dialog)
{
  gtk_widget_grab_focus (dialog->filename_entry);
}

void
screenshot_dialog_enable_dnd (ScreenshotDialog *dialog)
{
  GtkWidget *preview_darea;

  g_return_if_fail (dialog != NULL);

  preview_darea = GTK_WIDGET (gtk_builder_get_object (dialog->ui, "preview_darea"));
  gtk_drag_source_set (preview_darea,
		       GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
		       drag_types, G_N_ELEMENTS (drag_types),
		       GDK_ACTION_COPY);
}

GtkWidget *
screenshot_dialog_get_toplevel (ScreenshotDialog *dialog)
{
  return GTK_WIDGET (gtk_builder_get_object (dialog->ui, "toplevel"));
}

char *
screenshot_dialog_get_uri (ScreenshotDialog *dialog)
{
  gchar *folder;
  const gchar *file_name;
  gchar *uri, *file, *tmp;
  GError *error;

  folder = gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (dialog->save_widget));
  file_name = gtk_entry_get_text (GTK_ENTRY (dialog->filename_entry));

  error = NULL;
  tmp = g_filename_from_utf8 (file_name, -1, NULL, NULL, &error);
  if (error)
    {
      g_warning ("Unable to convert `%s' to valid UTF-8: %s\n"
                 "Falling back to default file.",
                 file_name,
                 error->message);
      g_error_free (error);
      tmp = g_strdup (_("Screenshot.png"));
    }

  file = g_uri_escape_string (tmp, NULL, FALSE);
  uri = g_build_filename (folder, file, NULL);

  g_free (folder);
  g_free (tmp);
  g_free (file);

  return uri;
}

char *
screenshot_dialog_get_folder (ScreenshotDialog *dialog)
{
  return gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (dialog->save_widget));
}

GdkPixbuf *
screenshot_dialog_get_screenshot (ScreenshotDialog *dialog)
{
  return dialog->screenshot;
}

void
screenshot_dialog_set_busy (ScreenshotDialog *dialog,
			    gboolean          busy)
{
  GtkWidget *toplevel;

  toplevel = screenshot_dialog_get_toplevel (dialog);

  if (busy)
    {
      GdkCursor *cursor;
      /* Change cursor to busy */
      cursor = gdk_cursor_new (GDK_WATCH);
      gdk_window_set_cursor (toplevel->window, cursor);
      gdk_cursor_unref (cursor);
    }
  else
    {
      gdk_window_set_cursor (toplevel->window, NULL);
    }

  gtk_widget_set_sensitive (toplevel, ! busy);

  gdk_flush ();
}