Adding bitmap fonts

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

@@ -0,0 +1,66 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UIImage.hpp"
+#include "game/DawnGame.hpp"
+
+using namespace Dawn;
+
+UIImage::UIImage(SceneItem *item) :
+  texture(nullptr),
+  UIComponent(item)
+{
+
+}
+
+float_t UIImage::getContentWidth() {
+  if(this->texture != nullptr) return this->texture->getWidth();
+  return this->width;
+}
+
+float_t UIImage::getContentHeight() {
+  if(this->texture != nullptr) return this->texture->getHeight();
+  return this->height;
+}
+
+std::vector<struct ShaderPassItem> UIImage::getPassItems(
+  glm::mat4 proj, glm::mat4 view
+) {
+  struct ShaderPassItem item;
+  auto shader = &getGame()->renderManager.uiShaderProgram;
+  item.shaderProgram = shader;
+  item.colorValues[shader->paramColor] = this->color;
+  item.matrixValues[shader->paramProjection] = proj;
+  item.matrixValues[shader->paramView] = view;
+  item.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  if(this->texture == nullptr) {
+    item.boolValues[shader->paramHasTexture] = false;
+  } else {
+    item.boolValues[shader->paramHasTexture] = true;
+    item.textureSlots[0] = this->texture;
+    item.textureValues[shader->paramTexture] = 0;
+  }
+  item.w = this->transform->getWorldPosition().z;
+  item.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
+  item.mesh = &mesh;
+  
+  return { item };
+}
+
+void UIImage::onStart() {
+  UIComponent::onStart();
+
+  useEvent([&]{
+    QuadMesh::bufferPositions(&mesh,
+      glm::vec2(0, 0), glm::vec2(width, height), 0
+    );
+  }, this->eventAlignmentUpdated);
+
+  QuadMesh::initQuadMesh(&mesh,
+    glm::vec2(0, 0), glm::vec2(0, 0),
+    glm::vec2(width, height), glm::vec2(1, 1),
+    0.0f
+  );
+}