GLContext* GLContext::getContextForWidget(GtkWidget* widget)
{
ASSERT(widget);
WindowContextMap& windowContexts = windowContextsMap();
WindowContextMap::iterator i = windowContextsMap().find(widget);
if (i != windowContexts.end())
return i->second.get();
// It's important that this context doesn't hang around after the window
// is unmapped, so we make sure to clean it up once that happens.
if (!g_signal_handler_find(widget, G_SIGNAL_MATCH_FUNC, 0, 0, 0, reinterpret_cast<void*>(shutdownGLContext), 0))
g_signal_connect(widget, "unmap", G_CALLBACK(shutdownGLContext), 0);
// If this GDK window doesn't have its own native window then, we don't want
// to use it for rendering, since we'll be drawing over some other widget's area.
GdkWindow* gdkWindow = gtk_widget_get_window(widget);
GLContext* context = gdkWindow && gdk_window_has_native(gdkWindow) ? createContext(GDK_WINDOW_XID(gdkWindow)) : createContext(0);
if (!context)
return 0;
windowContexts.set(widget, adoptPtr(context));
return context;
}
static void
save_window (GString *s,
GdkWindow *window)
{
gint x, y;
GdkColor *color;
gdk_window_get_position (window, &x, &y);
color = g_object_get_data (G_OBJECT (window), "color");
g_string_append_printf (s, "%d,%d %dx%d (%d,%d,%d) %d %d\n",
x, y,
gdk_window_get_width (window),
gdk_window_get_height (window),
color->red, color->green, color->blue,
gdk_window_has_native (window),
g_list_length (gdk_window_peek_children (window)));
save_children (s, window);
}
static void
render_window_cell (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data)
{
GdkWindow *window;
char *name;
gtk_tree_model_get (GTK_TREE_MODEL (window_store),
iter,
0, &window,
-1);
if (gdk_window_has_native (window))
name = g_strdup_printf ("%p (native)", window);
else
name = g_strdup_printf ("%p", window);
g_object_set (cell,
"text", name,
NULL);
}
