added texture class

[l2e.git] / src / graphics / Texture.cpp

diff --git a/src/graphics/Texture.cpp b/src/graphics/Texture.cpp
new file mode 100644 (file)
index 0000000..6fc8f0e
--- /dev/null
+++ b/src/graphics/Texture.cpp
@@ -0,0 +1,60 @@
+/*
+ * Texture.cpp
+ *
+ *  Created on: Oct 21, 2012
+ *      Author: holy
+ */
+
+#include "Texture.h"
+
+#include "../sdl/utility.h"
+
+using geometry::Vector;
+
+namespace graphics {
+
+Texture::Texture()
+: surface(0) {
+
+}
+
+Texture::~Texture() {
+
+}
+
+
+void Texture::Render(SDL_Surface *dest, const Vector<int> &from, const Vector<int> &to) const {
+       SDL_Rect destRect;
+       destRect.x = from.X();
+       destRect.y = from.Y();
+       if (!surface || size == Vector<int>()) {
+               destRect.w = to.X() - from.X();
+               destRect.h = to.Y() - from.Y();
+               SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
+               return;
+       }
+
+       SDL_Rect srcRect;
+       srcRect.x = offset.X();
+       srcRect.y = offset.Y();
+
+       for (destRect.y = from.Y(); destRect.y < to.Y(); destRect.y += size.Y()) {
+               srcRect.h = size.Y();
+               destRect.h = size.Y();
+               if (destRect.y + destRect.h > to.Y()) {
+                       srcRect.h = to.Y() - destRect.y;
+                       destRect.h = to.Y() - destRect.y;
+               }
+               for (destRect.x = from.X(); destRect.x < to.X(); destRect.x += size.X()) {
+                       srcRect.w = size.X();
+                       destRect.w = size.X();
+                       if (destRect.x + destRect.w > to.X()) {
+                               srcRect.w = to.X() - destRect.x;
+                               destRect.w = to.X() - destRect.x;
+                       }
+                       SDL_BlitSurface(surface, &srcRect, dest, &destRect);
+               }
+       }
+}
+
+}