scene: add wlr_scene_node_coords
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04d105760d
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@ -118,6 +118,12 @@ void wlr_scene_node_place_below(struct wlr_scene_node *node,
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*/
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void wlr_scene_node_reparent(struct wlr_scene_node *node,
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struct wlr_scene_node *new_parent);
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/**
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* Get the node's layout-local coordinates.
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*
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* True is returned if the node and all of its ancestors are enabled.
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*/
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bool wlr_scene_node_coords(struct wlr_scene_node *node, int *lx, int *ly);
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/**
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* Call `iterator` on each surface in the scene-graph, with the surface's
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* position in layout coordinates. The function is called from root to leaves
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@ -193,6 +193,22 @@ void wlr_scene_node_reparent(struct wlr_scene_node *node,
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wl_list_insert(new_parent->state.children.prev, &node->state.link);
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}
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bool wlr_scene_node_coords(struct wlr_scene_node *node,
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int *lx_ptr, int *ly_ptr) {
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int lx = 0, ly = 0;
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bool enabled = true;
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while (node != NULL) {
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lx += node->state.x;
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ly += node->state.y;
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enabled = enabled && node->state.enabled;
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node = node->parent;
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}
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*lx_ptr = lx;
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*ly_ptr = ly;
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return enabled;
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}
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static void scene_node_for_each_surface(struct wlr_scene_node *node,
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int lx, int ly, wlr_surface_iterator_func_t user_iterator,
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void *user_data) {
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