1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
9 compare_pixbufs (GdkPixbuf *pixbuf, GdkPixbuf *compare, const gchar *file_type)
11 if ((gdk_pixbuf_get_width (pixbuf) !=
12 gdk_pixbuf_get_width (compare)) ||
13 (gdk_pixbuf_get_height (pixbuf) !=
14 gdk_pixbuf_get_height (compare)) ||
15 (gdk_pixbuf_get_n_channels (pixbuf) !=
16 gdk_pixbuf_get_n_channels (compare)) ||
17 (gdk_pixbuf_get_has_alpha (pixbuf) !=
18 gdk_pixbuf_get_has_alpha (compare)) ||
19 (gdk_pixbuf_get_bits_per_sample (pixbuf) !=
20 gdk_pixbuf_get_bits_per_sample (compare))) {
22 "saved %s file differs from copy in memory\n",
26 guchar *compare_pixels;
28 gint compare_rowstride;
36 orig_pixels = gdk_pixbuf_get_pixels (pixbuf);
37 compare_pixels = gdk_pixbuf_get_pixels (compare);
39 orig_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
40 compare_rowstride = gdk_pixbuf_get_rowstride (compare);
42 width = gdk_pixbuf_get_width (pixbuf);
43 height = gdk_pixbuf_get_height (pixbuf);
46 bytes_per_pixel = gdk_pixbuf_get_n_channels (pixbuf);
51 for (y = 0; y < height; y++) {
52 for (x = 0; x < width * bytes_per_pixel; x++)
53 count += (*p1++ != *p2++);
55 orig_pixels += orig_rowstride;
56 compare_pixels += compare_rowstride;
64 "saved %s file differs from copy in memory\n",
71 save_to_loader (const gchar *buf, gsize count, GError **err, gpointer data)
73 GdkPixbufLoader *loader = data;
75 return gdk_pixbuf_loader_write (loader, (const guchar *)buf, count, err);
79 buffer_to_pixbuf (const gchar *buf, gsize count, GError **err)
81 GdkPixbufLoader *loader;
84 loader = gdk_pixbuf_loader_new ();
85 if (gdk_pixbuf_loader_write (loader, (const guchar *)buf, count, err) &&
86 gdk_pixbuf_loader_close (loader, err)) {
87 pixbuf = g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader));
88 g_object_unref (loader);
96 do_compare (GdkPixbuf *pixbuf, GdkPixbuf *compare, GError *err)
98 if (compare == NULL) {
99 fprintf (stderr, "%s", err->message);
102 compare_pixbufs (pixbuf, compare, "jpeg");
103 g_object_unref (compare);
108 keypress_check (GtkWidget *widget, GdkEventKey *evt, gpointer data)
111 GtkDrawingArea *da = (GtkDrawingArea*)data;
115 GdkPixbufLoader *loader;
117 pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (da), "pixbuf");
119 if (evt->keyval == 'q')
122 if (evt->keyval == 's' && (evt->state & GDK_CONTROL_MASK)) {
123 /* save to callback */
124 if (pixbuf == NULL) {
125 fprintf (stderr, "PIXBUF NULL\n");
129 loader = gdk_pixbuf_loader_new ();
130 if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "jpeg",
134 !gdk_pixbuf_loader_close (loader, &err)) {
135 fprintf (stderr, "%s", err->message);
139 g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
141 g_object_unref (loader);
144 else if (evt->keyval == 'S') {
146 if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "jpeg",
150 fprintf (stderr, "%s", err->message);
154 buffer_to_pixbuf (buffer, count, &err),
158 else if (evt->keyval == 's') {
160 if (pixbuf == NULL) {
161 fprintf (stderr, "PIXBUF NULL\n");
165 if (!gdk_pixbuf_save (pixbuf, "foo.jpg", "jpeg",
169 fprintf (stderr, "%s", err->message);
173 gdk_pixbuf_new_from_file ("foo.jpg", &err),
178 if (evt->keyval == 'p' && (evt->state & GDK_CONTROL_MASK)) {
179 /* save to callback */
180 if (pixbuf == NULL) {
181 fprintf (stderr, "PIXBUF NULL\n");
185 loader = gdk_pixbuf_loader_new ();
186 if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "png",
188 "tEXt::Software", "testpixbuf-save",
190 || !gdk_pixbuf_loader_close (loader, &err)) {
191 fprintf (stderr, "%s", err->message);
195 g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
197 g_object_unref (loader);
200 else if (evt->keyval == 'P') {
202 if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "png",
204 "tEXt::Software", "testpixbuf-save",
206 fprintf (stderr, "%s", err->message);
210 buffer_to_pixbuf (buffer, count, &err),
214 else if (evt->keyval == 'p') {
215 if (pixbuf == NULL) {
216 fprintf (stderr, "PIXBUF NULL\n");
220 if (!gdk_pixbuf_save (pixbuf, "foo.png", "png",
222 "tEXt::Software", "testpixbuf-save",
224 fprintf (stderr, "%s", err->message);
228 gdk_pixbuf_new_from_file ("foo.png", &err),
233 if (evt->keyval == 'i' && (evt->state & GDK_CONTROL_MASK)) {
234 /* save to callback */
235 if (pixbuf == NULL) {
236 fprintf (stderr, "PIXBUF NULL\n");
240 loader = gdk_pixbuf_loader_new ();
241 if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "ico",
244 || !gdk_pixbuf_loader_close (loader, &err)) {
245 fprintf (stderr, "%s", err->message);
249 g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
251 g_object_unref (loader);
254 else if (evt->keyval == 'I') {
256 if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "ico",
259 fprintf (stderr, "%s", err->message);
263 buffer_to_pixbuf (buffer, count, &err),
267 else if (evt->keyval == 'i') {
268 if (pixbuf == NULL) {
269 fprintf (stderr, "PIXBUF NULL\n");
273 if (!gdk_pixbuf_save (pixbuf, "foo.ico", "ico",
276 fprintf (stderr, "%s", err->message);
280 gdk_pixbuf_new_from_file ("foo.ico", &err),
285 if (evt->keyval == 'a') {
286 if (pixbuf == NULL) {
287 fprintf (stderr, "PIXBUF NULL\n");
290 GdkPixbuf *alpha_buf;
292 alpha_buf = gdk_pixbuf_add_alpha (pixbuf,
295 g_object_set_data_full (G_OBJECT (da),
297 (GDestroyNotify) g_object_unref);
304 close_app (GtkWidget *widget, gpointer data)
311 draw_cb (GtkWidget *drawing_area, cairo_t *cr, gpointer data)
315 pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (drawing_area),
318 gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
325 configure_cb (GtkWidget *drawing_area, GdkEventConfigure *evt, gpointer data)
329 pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (drawing_area),
332 g_print ("X:%d Y:%d\n", evt->width, evt->height);
333 if (evt->width != gdk_pixbuf_get_width (pixbuf) || evt->height != gdk_pixbuf_get_height (pixbuf)) {
335 GdkPixbuf *new_pixbuf;
337 root = gdk_get_default_root_window ();
338 new_pixbuf = gdk_pixbuf_get_from_window (root,
339 0, 0, evt->width, evt->height);
340 g_object_set_data_full (G_OBJECT (drawing_area), "pixbuf", new_pixbuf,
341 (GDestroyNotify) g_object_unref);
348 main (int argc, char **argv)
353 GtkWidget *drawing_area;
356 gtk_init (&argc, &argv);
358 root = gdk_get_default_root_window ();
359 pixbuf = gdk_pixbuf_get_from_window (root,
362 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
363 g_signal_connect (window, "delete_event",
364 G_CALLBACK (close_app), NULL);
365 g_signal_connect (window, "destroy",
366 G_CALLBACK (close_app), NULL);
368 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
369 gtk_container_add (GTK_CONTAINER (window), vbox);
371 drawing_area = gtk_drawing_area_new ();
372 gtk_widget_set_size_request (GTK_WIDGET (drawing_area),
373 gdk_pixbuf_get_width (pixbuf),
374 gdk_pixbuf_get_height (pixbuf));
375 g_signal_connect (drawing_area, "draw",
376 G_CALLBACK (draw_cb), NULL);
378 g_signal_connect (drawing_area, "configure_event",
379 G_CALLBACK (configure_cb), NULL);
380 g_signal_connect (window, "key_press_event",
381 G_CALLBACK (keypress_check), drawing_area);
382 g_object_set_data_full (G_OBJECT (drawing_area), "pixbuf", pixbuf,
383 (GDestroyNotify) g_object_unref);
384 gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
386 gtk_widget_show_all (window);