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Allow to save to other formats than png

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Currently, the screenshots can only be saved to png. This commit
checks if the file extension is a known one, and will save to this
format if it is. Otherwise it will fallback to saving to png.
This commit is contained in:
Christophe Fergeau 2012-11-13 12:50:10 +01:00
parent 45a791082e
commit f9935c832b
1 changed files with 53 additions and 2 deletions
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55
src/virt-viewer-window.c
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@ -750,15 +750,66 @@ virt_viewer_window_menu_view_resize(GtkWidget *menu,
virt_viewer_display_set_auto_resize(priv->display, priv->auto_resize);
}
static void add_if_writable (GdkPixbufFormat *data, GHashTable *formats)
{
if (gdk_pixbuf_format_is_writable(data)) {
gchar **extensions;
gchar **it;
extensions = gdk_pixbuf_format_get_extensions(data);
for (it = extensions; *it != NULL; it++) {
g_hash_table_insert(formats, g_strdup(*it), data);
}
g_strfreev(extensions);
}
}
static GHashTable *init_image_formats(void)
{
GHashTable *format_map;
GSList *formats = gdk_pixbuf_get_formats();
format_map = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
g_slist_foreach(formats, (GFunc)add_if_writable, format_map);
g_slist_free (formats);
return format_map;
}
static GdkPixbufFormat *get_image_format(const char *filename)
{
static GOnce image_formats_once = G_ONCE_INIT;
const char *ext;
g_once(&image_formats_once, (GThreadFunc)init_image_formats, NULL);
ext = strrchr(filename, '.');
if (ext == NULL)
return NULL;
ext++; /* skip '.' */
return g_hash_table_lookup(image_formats_once.retval, ext);
}
static void
virt_viewer_window_save_screenshot(VirtViewerWindow *self,
const char *file)
{
VirtViewerWindowPrivate *priv = self->priv;
GdkPixbuf *pix = virt_viewer_display_get_pixbuf(VIRT_VIEWER_DISPLAY(priv->display));
GdkPixbufFormat *format = get_image_format(file);
if (format == NULL) {
g_debug("unknown file extension, falling back to png");
gdk_pixbuf_save(pix, file, "png", NULL,
"tEXt::Generator App", PACKAGE, NULL);
} else {
char *type = gdk_pixbuf_format_get_name(format);
g_debug("saving to %s", type);
gdk_pixbuf_save(pix, file, type, NULL, NULL);
g_free(type);
}
gdk_pixbuf_save(pix, file, "png", NULL,
"tEXt::Generator App", PACKAGE, NULL);
g_object_unref(pix);
}