WIP (Codename Ultra) UI lib

include/pd/ultra/canvas.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <pd/core/core.hpp>
+#include <pd/lithium/lithium.hpp>
+
+using UltraAlignment = PD::u32;
+enum UltraAlignment_ {
+  UltraAlignment_None = 0,
+  UltraAlignment_Top = 1 << 0,
+  UltraAlignment_Bot = 1 << 1,
+  UltraAlignment_Left = 1 << 2,
+  UltraAlignment_Right = 1 << 3,
+  UltraAlignment_TopLeft = UltraAlignment_Top | UltraAlignment_Left,
+  UltraAlignment_TopRight = UltraAlignment_Top | UltraAlignment_Right,
+  UltraAlignment_BotLeft = UltraAlignment_Bot | UltraAlignment_Left,
+  UltraAlignment_BotRight = UltraAlignment_Bot | UltraAlignment_Right,
+};
+
+namespace PD {
+namespace Ultra {
+class PD_API Canvas {
+ public:
+  Canvas();
+  Canvas(const PD::fvec2& size);
+  ~Canvas();
+
+  void SetVirtualViewport(const PD::fvec2& size);
+  void SetViewport(const PD::fvec2& size);
+
+  PD::fvec2 VTranslatePos(const PD::fvec2& p) const;
+  PD::fvec2 VTranslateAlignPos(const PD::fvec2& pos, const PD::fvec2& size,
+                               UltraAlignment align) const;
+  PD::Li::Rect VTranslateObject(const PD::fvec2& pos, const PD::fvec2& size,
+                                UltraAlignment align, bool size_modified = false) const;
+  PD::fvec2 TranslatePos(const PD::fvec2& p) const;
+  PD::fvec2 VTranslateSize(const PD::fvec2& s) const;
+  PD::fvec2 TranslateSize(const PD::fvec2& s) const;
+  float VTranslateFontscale(float f) const;
+  float TranslateFontscale(float f) const;
+
+ private:
+  PD::fvec2 pViewport;
+  PD::fvec2 pVirtualViewPort;
+  float pVfactor = 0.f;
+  PD::fvec2 pVoff;
+};
+}  // namespace Ultra
+}  // namespace PD