C++ (Cpp) eog_window_get_image示例

示例#1

文件： eog-application.c 项目： daybologic/eog

static EogWindow *
eog_application_get_file_window (EogApplication *application, GFile *file)
{
	EogWindow *file_window = NULL;
	GList *windows;
	GList *l;

	g_return_val_if_fail (file != NULL, NULL);
	g_return_val_if_fail (EOG_IS_APPLICATION (application), NULL);

	windows = gtk_window_list_toplevels ();

	for (l = windows; l != NULL; l = l->next) {
		if (EOG_IS_WINDOW (l->data)) {
			EogWindow *window = EOG_WINDOW (l->data);

			if (!eog_window_is_empty (window)) {
				EogImage *image = eog_window_get_image (window);
				GFile *window_file;

				window_file = eog_image_get_file (image);
				if (g_file_equal (window_file, file)) {
					file_window = window;
					break;
				}
			}
		}
	}

	g_list_free (windows);

	return file_window;
}

示例#2

文件： eog-fit-to-width-plugin.c 项目： GNOME/eog-plugins

static void
fit_to_width_cb (GSimpleAction *simple,
		 GVariant      *parameter,
		 gpointer       user_data)
{
	EogWindow     *window;
	GtkWidget     *view;
	EogImage      *image;
	gint           image_width;
	gint           image_height;
	gint           view_width;
	double         zoom;
	GtkAllocation  allocation;


	g_return_if_fail (EOG_IS_WINDOW (user_data));

	window = EOG_WINDOW (user_data);

	view = eog_window_get_view (window);
	image = eog_window_get_image (window);

	g_return_if_fail (EOG_IS_SCROLL_VIEW (view));
	g_return_if_fail (EOG_IS_IMAGE (image));

	eog_image_get_size (image, &image_width, &image_height);
	gtk_widget_get_allocation (view, &allocation);
	view_width = allocation.width;

	// HACK: It's necessary subtract the width size (15) of vscrollbar
	//       to scrollview for obtain the display area.
	zoom = (double) (view_width - 15) / image_width;

	eog_scroll_view_set_zoom (EOG_SCROLL_VIEW (view), zoom);
}