proper anchor points

include/compositor.h

@@ -24,6 +24,18 @@ enum easing_t {
     EASE_IN_OUT_CUBIC
 };
 
+enum anchor_point_t {
+    ANCHOR_TOP_LEFT,
+    ANCHOR_TOP_CENTER,
+    ANCHOR_TOP_RIGHT,
+    ANCHOR_CENTER_LEFT,
+    ANCHOR_CENTER,
+    ANCHOR_CENTER_RIGHT,
+    ANCHOR_BOTTOM_LEFT,
+    ANCHOR_BOTTOM_CENTER,
+    ANCHOR_BOTTOM_RIGHT,
+};
+
 extern "C" {
 typedef struct compositor_t compositor_t;
 
@@ -39,7 +51,8 @@ uint32_t compositor_insert(compositor_t* comp,
     uint32_t fb_width,
     uint32_t fb_height,
     int32_t x, int32_t y,
-    int32_t z_order, float scale = 1.0f);
+    int32_t z_order, float scale,
+    anchor_point_t anchor);
 
 // Remove element by ID
 void compositor_remove(compositor_t* comp, uint32_t id);