Scene change support

src/dawn/scene/components/ui/CMakeLists.txt

@@ -10,6 +10,7 @@ target_sources(${DAWN_TARGET_NAME}
     UIComponent.cpp
     UIComponentRenderable.cpp
     UIImage.cpp
+    UIEmpty.cpp
     UIBorder.cpp
 )
 

src/dawn/scene/components/ui/UIEmpty.cpp

@@ -0,0 +1,15 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UIEmpty.hpp"
+
+using namespace Dawn;
+
+UIEmpty::UIEmpty(SceneItem *item) : UIComponent(item) { }
+
+float_t UIEmpty::getContentWidth() { return 0.0f; }
+float_t UIEmpty::getContentHeight() { return 0.0f; }
+float_t UIEmpty::getChildOffsetX() { return 0.0f; }
+float_t UIEmpty::getChildOffsetY() { return 0.0f; }

src/dawn/scene/components/ui/UIEmpty.hpp

@@ -0,0 +1,18 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "UIComponent.hpp"
+
+namespace Dawn {
+  class UIEmpty : public UIComponent {
+    public:
+      UIEmpty(SceneItem *item);
+      float_t getContentWidth() override;
+      float_t getContentHeight() override;
+      float_t getChildOffsetX() override;
+      float_t getChildOffsetY() override;
+  };
+}

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

@@ -211,7 +211,9 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
 
     // Now, iterate each character
     for(int32_t i = 0; i < len; i++) {
-      char ch = text.text[i];
+      std::u32string::value_type ch = text.text[i];
+      // FT_ULong ch = text.text[i];
+      char c = text.text[i];
 
       // Handle special characters
       if(ch == '\n') {
@@ -228,8 +230,7 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
       assertTrue(ch != '\n');
 
       // Get font data.
-      FT_ULong c = ch;
-      auto charInfo = realText.texture->getCharacterData(c);
+      auto charInfo = realText.texture->getCharacterData(ch);
 
       // Word wrapping
       if(