Fry3DX 0.4: an easy 3D modeller

Shapes with live settings, shape editing, knife and hole tools, drawing
shapes onto other objects, combining objects (add / subtract / overlap),
copies, thickness, painting with stickers and layers, a Layout tab, a
Print tab with checks, packed .fry files with autosave, export to GLB,
glTF, FBX, OBJ, 3MF, STL and PLY, folders in Layers, its own crash
screen, and a website for GitHub Pages in docs/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NMSrd5oe1GpUD7E6d825KP

engine/platform/window.h

@@ -0,0 +1,31 @@
+#pragma once
+#include <cstdint>
+
+#include <cstdint>
+#include <utility>
+#include <vector>
+
+struct SDL_Window;
+
+namespace keel {
+
+class Window {
+public:
+    // opengl: a window for an OpenGL context (the backend creates it); otherwise Vulkan.
+    bool init(const char* title, int width, int height, bool opengl = false);
+    void shutdown();
+    SDL_Window* handle() const { return window_; }
+    // Size in pixels (not points); 0×0 while minimized.
+    void pixelSize(uint32_t& w, uint32_t& h) const;
+    // mode: 0 = windowed (width × height), 1 = borderless fullscreen (desktop size),
+    // 2 = exclusive fullscreen at the display mode closest to width × height.
+    void setMode(int mode, int width, int height);
+    void setIcon(const uint8_t* rgba, int width, int height);
+    // Fullscreen resolutions the display offers, largest first, no duplicates.
+    std::vector<std::pair<int, int>> resolutions() const;
+
+private:
+    SDL_Window* window_ = nullptr;
+};
+
+} // namespace keel