refactor: add Window interface

src/graphics/core/DrawContext.cpp

@@ -25,10 +25,11 @@ static void set_blend_mode(BlendMode mode) {
 
 DrawContext::DrawContext(
     const DrawContext* parent, 
-    Viewport  viewport,
+    Window& window,
     Batch2D* g2d
-) : parent(parent), 
-    viewport(std::move(viewport)),
+) : window(window),
+    parent(parent), 
+    viewport({window.getSize()}),
     g2d(g2d),
     flushable(g2d)
 {}
@@ -39,7 +40,7 @@ DrawContext::~DrawContext() {
     }
 
     while (scissorsCount--) {
-        Window::popScissor();
+        window.popScissor();
     }
 
     if (parent == nullptr)
@@ -54,7 +55,7 @@ DrawContext::~DrawContext() {
         }
     }
 
-    Window::viewport(
+    glViewport(
         0, 0,
         parent->viewport.getWidth(), 
         parent->viewport.getHeight()
@@ -100,7 +101,7 @@ DrawContext DrawContext::sub(Flushable* flushable) const {
 
 void DrawContext::setViewport(const Viewport& viewport) {
     this->viewport = viewport;
-    Window::viewport(
+    glViewport(
         0, 0,
         viewport.getWidth(),
         viewport.getHeight()
@@ -153,7 +154,7 @@ void DrawContext::setBlendMode(BlendMode mode) {
 }
 
 void DrawContext::setScissors(const glm::vec4& area) {
-    Window::pushScissor(area);
+    window.pushScissor(area);
     scissorsCount++;
 }
 

src/graphics/core/DrawContext.hpp

@@ -4,10 +4,12 @@
 #include "Viewport.hpp"
 #include "typedefs.hpp"
 
+class Window;
 class Batch2D;
 class Framebuffer;
 
 class DrawContext {
+    Window& window;
     const DrawContext* parent;
     Viewport viewport;
     Batch2D* g2d;
@@ -20,7 +22,11 @@ class DrawContext {
     int scissorsCount = 0;
     float lineWidth = 1.0f;
 public:
-    DrawContext(const DrawContext* parent, Viewport viewport, Batch2D* g2d);
+    DrawContext(
+        const DrawContext* parent,
+        Window& window,
+        Batch2D* g2d
+    );
     ~DrawContext();
     
     Batch2D* getBatch2D() const;

src/graphics/core/Viewport.cpp

@@ -4,6 +4,9 @@ Viewport::Viewport(uint width, uint height)
     : width(width), height(height) {
 }
 
+Viewport::Viewport(const glm::ivec2& size) : width(size.x), height(size.y) {
+}
+
 uint Viewport::getWidth() const {
     return width;
 }

src/graphics/core/Viewport.hpp

@@ -9,6 +9,7 @@ class Viewport {
     uint height;
 public:
     Viewport(uint width, uint height);
+    Viewport(const glm::ivec2& size);
 
     virtual uint getWidth() const;
     virtual uint getHeight() const;