Fixed alignment on UI Label

src/dawn/scene/components/ui/text/UILabel.hpp

@@ -36,11 +36,18 @@ namespace Dawn {
     int32_t quadCount = 0;
   };
 
+  enum UILabelVerticalAlign {
+    UI_LABEL_VERTICAL_ALIGN_TOP,
+    UI_LABEL_VERTICAL_ALIGN_MIDDLE,
+    UI_LABEL_VERTICAL_ALIGN_BOTTOM
+  };
+
   class UILabel : public UIComponentRenderable {
     private:
       Mesh mesh;
       FontShaderBuffer shaderBuffer;
       std::map<TrueTypeFaceTexture*, int32_t> textureMap;
+      bool_t ignoreAlignmentUpdate = false;
 
     public:
       int32_t quadStart = 0;
@@ -55,6 +62,9 @@ namespace Dawn {
       
       StateEvent<> eventTextChanged;
 
+      // @optional
+      StateProperty<float_t> lineHeight;
+
       UILabel(SceneItem *item);
 
       void onStart() override;