Added a 'blank' parameter to Image::Create()

src/common/image.cpp

@@ -95,7 +95,7 @@ SDL_Texture* Image::Load(SDL_Renderer* renderer, std::string fname) {
 	return texture;
 }
 
-SDL_Texture* Image::Create(SDL_Renderer* renderer, Uint16 w, Uint16 h) {
+SDL_Texture* Image::Create(SDL_Renderer* renderer, Uint16 w, Uint16 h, SDL_Color blank) {
 	Free();
 
 	//make the texture
@@ -124,8 +124,9 @@ SDL_Texture* Image::Create(SDL_Renderer* renderer, Uint16 w, Uint16 h) {
 
 	//blank (black) texture
 	SDL_SetRenderTarget(renderer, texture);
-	SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
+	SDL_SetRenderDrawColor(renderer, blank.r, blank.g, blank.b, blank.a);
 	SDL_RenderFillRect(renderer, nullptr);
+	SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
 	SDL_SetRenderTarget(renderer, nullptr);
 
 	return texture;

src/common/image.hpp

@@ -39,7 +39,7 @@ public:
 	Image& operator=(Image&&);
 
 	SDL_Texture* Load(SDL_Renderer* renderer, std::string fname);
-	SDL_Texture* Create(SDL_Renderer* renderer, Uint16 w, Uint16 h);
+	SDL_Texture* Create(SDL_Renderer* renderer, Uint16 w, Uint16 h, SDL_Color blank = {0, 0, 0, 255});
 	SDL_Texture* CopyTexture(SDL_Renderer* renderer, SDL_Texture* ptr);
 	SDL_Texture* SetTexture(SDL_Texture*);
 	SDL_Texture* GetTexture() const;

src/example_scene.cpp

@@ -67,6 +67,9 @@ ExampleScene::ExampleScene(lua_State* L) {
 	textBox.PushLine(GetRenderer(), font, "second line", {255, 255, 255, 255});
 	textBox.PushLine(GetRenderer(), font, "third line", {255, 255, 255, 255});
 	textBox.PushLine(GetRenderer(), font, "FOURTH LINE!!", {255, 0, 0, 0});
+
+	//
+	blankImage.Create(GetRenderer(), 256, 256);
 }
 
 ExampleScene::~ExampleScene() {
@@ -98,6 +101,8 @@ void ExampleScene::RenderFrame(SDL_Renderer* renderer) {
 	//DEBUG: testing UI
 	button.DrawTo(renderer);
 	textBox.DrawTo(renderer, 0, 550, -12);
+
+	blankImage.DrawTo(renderer, 0, 0);
 }
 
 //-------------------------

src/example_scene.hpp

@@ -67,5 +67,8 @@ private:
 	TTF_Font* font = nullptr;
 	Image buttonBG;
 	Button button;
-	TextBox<> textBox;
+	TextBox textBox;
+
+	//blank image
+	Image blankImage;
 };