Switched UI Label to use localized strings.

src/dawn/ui/UILabel.cpp

@@ -4,11 +4,14 @@
 // https://opensource.org/licenses/MIT
 
 #include "UILabel.hpp"
+#include "game/DawnGame.hpp"
 
 using namespace Dawn;
 
 UILabel::UILabel(UICanvas *canvas) : UIComponent(canvas) {
-
+  getGame()->localeManager.eventLanguageUpdated.addListener(
+    this, &UILabel::onLanguageUpdated
+  );
 }
 
 void UILabel::updatePositions() {
@@ -17,15 +20,15 @@ void UILabel::updatePositions() {
 }
 
 void UILabel::updateMesh() {
-  if(!this->needsRebuffering) return;
+  if(!this->needsRebuffering || !this->hasText) return;
   if(this->font == nullptr || !this->font->isReady()) return;
-  if(this->text.size() == 0) return;
 
   float_t width = this->width;
   if(width == 0) width = -1;
 
+  std::string text = this->getGame()->localeManager.getString(key);
   this->font->buffer(
-    this->text,
+    text,
     this->fontSize,
     width,
     &this->mesh,
@@ -35,17 +38,17 @@ void UILabel::updateMesh() {
   this->needsRebuffering = false;
 }
 
-std::string UILabel::getText() {
-  return this->text;
-}
-
 void UILabel::setFont(Font *font) {
   this->font = font;
   this->needsRebuffering = true;
 }
 
-void UILabel::setText(std::string text) {
-  this->text = text;
+void UILabel::setText(std::string key) {
+  this->key = key;
+  this->hasText = false;
+  if(key.size() > 0 && this->getGame()->localeManager.getString(key).size()>0){
+    this->hasText = true;
+  }
   this->needsRebuffering = true;
 }
 
@@ -65,7 +68,7 @@ float_t UILabel::getContentHeight() {
 }
 
 void UILabel::drawSelf(UIShader *shader, glm::mat4 selfTransform) {
-  if(this->font == nullptr || this->text.size() == 0) return;
+  if(this->font == nullptr || !this->hasText) return;
 
   this->updateMesh();
   shader->setUIColor(this->textColor);
@@ -83,4 +86,17 @@ void UILabel::setTransform(
 ) {
   this->needsRebuffering = true;
   UIComponent::setTransform(xAlign, yAlign, alignment, z);
+}
+
+void UILabel::onLanguageUpdated() {
+  this->needsRebuffering = true;
+  if(key.size() > 0 && this->getGame()->localeManager.getString(key).size()>0){
+    this->hasText = true;
+  }
+}
+
+UILabel::~UILabel() {
+  getGame()->localeManager.eventLanguageUpdated.removeListener(
+    this, &UILabel::onLanguageUpdated
+  );
 }

src/dawn/ui/UILabel.hpp

@@ -14,11 +14,15 @@ namespace Dawn {
       Mesh mesh;
       bool_t needsRebuffering = true;
       Font *font = nullptr;
-      std::string text = "";
+      std::string key = "";
       float_t fontSize = 10.0f;
+      bool_t hasText = false;
 
       void updatePositions() override;
 
+      /** Event for when the language strings are updated */
+      void onLanguageUpdated();
+
     public:
       struct FontMeasure measure;
       int32_t startQuad = 0;
@@ -43,13 +47,6 @@ namespace Dawn {
        */
       void updateMesh();
 
-      /**
-       * Returns the current text that the label has.
-       * 
-       * @return The current label string.
-       */
-      std::string getText();
-
       /**
        * Set the font to use for the label.
        * 
@@ -60,9 +57,9 @@ namespace Dawn {
       /**
        * Sets the text for the label to use.
        * 
-       * @param text Text for the label to use.
+       * @param key Localzied string key for the label to use.
        */
-      void setText(std::string text);
+      void setText(std::string key);
 
       /**
        * Sets / Updates the font size for the label.
@@ -71,5 +68,6 @@ namespace Dawn {
        */
       void setFontSize(float_t fontSize);
 
+      ~UILabel();
   };
 }