WIP (Codename Ultra) UI lib

include/pd/ultra/canvas.hpp

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+#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

include/pd/ultra/elems/element.hpp

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+#pragma once
+
+#include <pd/lithium/lithium.hpp>
+
+namespace PD {
+namespace Ultra {
+class ElementBase {
+ public:
+  ElementBase() {}
+  ~ElementBase() {}
+
+  virtual void Draw(PD::Li::Drawlist& dl) = 0;
+  /**
+   * Reset Function (for PD::Pool::FastReset)
+   */
+  virtual void Reset() {}
+
+ private:
+};
+}  // namespace Ultra
+}  // namespace PD

include/pd/ultra/elems/rect.hpp

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+#pragma once
+
+#include <pd/core/core.hpp>
+#include <pd/ultra/elems/element.hpp>
+
+namespace PD {
+namespace Ultra {
+class PD_API Rect : public ElementBase {
+ public:
+  Rect() {}
+  ~Rect() {}
+
+  void Draw(PD::Li::Drawlist& l) override;
+
+  void SetPosition(const PD::fvec2& pos) { pPos = pos; }
+  void SetPosition(float x, float y) { pPos = PD::fvec2(x, y); }
+  void SetSize(const PD::fvec2& size) { pSize = size; }
+  void SetSize(float w, float h) { pSize = PD::fvec2(w, h); }
+  void SetColor(const PD::Color& color) { pColor = color; }
+  void SetRounding(float r) { pRounding = r; }
+
+ private:
+  PD::fvec2 pPos;
+  PD::fvec2 pSize;
+  PD::Color pColor;
+  float pRounding = 0.f;
+};
+}  // namespace Ultra
+
+}  // namespace PD

include/pd/ultra/elems/text.hpp

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+#pragma once
+
+#include <pd/core/core.hpp>
+#include <pd/ultra/elems/element.hpp>
+
+namespace PD {
+namespace Ultra {
+class PD_API Text : public ElementBase {
+ public:
+  Text() {}
+  ~Text() {}
+
+  void Draw(PD::Li::Drawlist& l) override;
+
+  void SetPosition(const PD::fvec2& pos) { pPos = pos; }
+  void SetPosition(float x, float y) { pPos = PD::fvec2(x, y); }
+  void SetColor(const PD::Color& color) { pColor = color; }
+  void SetText(const std::string& text) { pText = text; }
+
+ private:
+  PD::fvec2 pPos;
+  PD::Color pColor;
+  std::string pText;
+};
+}  // namespace Ultra
+
+}  // namespace PD

include/pd/ultra/layout.hpp

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+#pragma once
+
+#include <pd/ultra/canvas.hpp>
+#include <pd/ultra/elems/element.hpp>
+
+namespace PD {
+namespace Ultra {
+class PD_API Layout {
+ public:
+  Layout() {}
+  ~Layout() {}
+
+  void Add(ElementBase& elem);
+
+  void SetFont(PD::Li::Font& font);
+
+  void Render();
+
+  const PD::Li::Drawlist& Data() const { return pList; }
+  Canvas& GetCanvas() { return pCanvas; }
+  const Canvas& GetCanvas() const { return pCanvas; }
+
+ private:
+  Canvas pCanvas;
+  PD::Pool<ElementBase*> pElements;
+  PD::Li::Drawlist pList;
+};
+}  // namespace Ultra
+}  // namespace PD