window: Add window_get_output_scale()
This lets you find the maximal scale for all the outputs a window
is on, which is useful for picking a buffer_scale.
diff --git a/clients/window.c b/clients/window.c
index 6f1b406..135ae5a 100644
--- a/clients/window.c
+++ b/clients/window.c
@@ -1468,6 +1468,22 @@
return window->main_surface->buffer_scale;
}
+uint32_t
+window_get_output_scale(struct window *window)
+{
+ struct window_output *window_output;
+ struct window_output *window_output_tmp;
+ int scale = 1;
+
+ wl_list_for_each_safe(window_output, window_output_tmp,
+ &window->window_output_list, link) {
+ if (window_output->output->scale > scale)
+ scale = window_output->output->scale;
+ }
+
+ return scale;
+}
+
static void frame_destroy(struct frame *frame);
static void
@@ -4384,6 +4400,8 @@
menu->window = window;
menu->widget = window_add_widget(menu->window, menu);
+ window_set_buffer_scale (menu->window, window_get_buffer_scale (parent));
+ window_set_buffer_transform (menu->window, window_get_buffer_transform (parent));
menu->entries = entries;
menu->count = count;
menu->release_count = 0;