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scene: add wlr_scene_node_toggle

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This allows compositors to easily enable or disable a scene-graph node.
This can be used to show/hide a surface when the xdg_surface is
mapped/unmapped.
This commit is contained in:
Simon Ser 2020-05-06 16:16:45 +02:00
parent c41bd320be
commit 86e9309808
2 changed files with 15 additions and 0 deletions
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9
types/wlr_scene.c
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@ -21,6 +21,7 @@ static struct wlr_scene_surface *scene_surface_from_node(
static void scene_node_state_init(struct wlr_scene_node_state *state) {
wl_list_init(&state->children);
wl_list_init(&state->link);
state->enabled = true;
}
static void scene_node_state_finish(struct wlr_scene_node_state *state) {
@ -108,6 +109,10 @@ struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_node *parent
return scene_surface;
}
void wlr_scene_node_set_enabled(struct wlr_scene_node *node, bool enabled) {
node->state.enabled = enabled;
}
void wlr_scene_node_set_position(struct wlr_scene_node *node, int x, int y) {
node->state.x = x;
node->state.y = y;
@ -132,6 +137,10 @@ void wlr_scene_node_place_below(struct wlr_scene_node *node,
static void scene_node_for_each_surface(struct wlr_scene_node *node,
int lx, int ly, wlr_surface_iterator_func_t user_iterator,
void *user_data) {
if (!node->state.enabled) {
return;
}
lx += node->state.x;
ly += node->state.y;