5 files changed, 66 insertions, 2 deletions
diff --git a/include/cru/osx/graphics/quartz/TextLayout.hpp b/include/cru/osx/graphics/quartz/TextLayout.hpp
index 80c257cc..2c6347db 100644
--- a/include/cru/osx/graphics/quartz/TextLayout.hpp
+++ b/include/cru/osx/graphics/quartz/TextLayout.hpp
@@ -31,6 +31,10 @@ class OsxCTTextLayout : public OsxQuartzResource, public virtual ITextLayout {
   bool IsEditMode() override;
   void SetEditMode(bool enable) override;
 
+  Index GetLineIndexFromCharIndex(Index char_index) override;
+  Index GetLineCount() override;
+  float GetLineHeight(Index line_index) override;
+
   Rect GetTextBounds(bool includingTrailingSpace = false) override;
   std::vector<Rect> TextRangeRect(const TextRange& text_range) override;
   Rect TextSinglePoint(Index position, bool trailing) override;
diff --git a/include/cru/platform/graphics/NullPainter.hpp b/include/cru/platform/graphics/NullPainter.hpp
new file mode 100644
index 00000000..cf790ccf
--- /dev/null
+++ b/include/cru/platform/graphics/NullPainter.hpp
@@ -0,0 +1,53 @@
+#pragma once
+#include "Painter.hpp"
+
+namespace cru::platform::graphics {
+class NullPainter : public Object, public virtual IPainter {
+ public:
+  NullPainter() = default;
+
+  CRU_DELETE_COPY(NullPainter)
+  CRU_DELETE_MOVE(NullPainter)
+
+  ~NullPainter() override = default;
+
+ public:
+  String GetPlatformId() const override { return u"NULL"; }
+
+  String GetDebugString() override { return u"NullPainter"; }
+
+  Matrix GetTransform() override { return Matrix(); }
+  void SetTransform(const Matrix& matrix) override {}
+
+  void ConcatTransform(const Matrix& matrix) override {}
+
+  void Clear(const Color& color) override {}
+
+  void DrawLine(const Point& start, const Point& end, IBrush* brush,
+                float width) override{};
+  void StrokeRectangle(const Rect& rectangle, IBrush* brush,
+                       float width) override {}
+  void FillRectangle(const Rect& rectangle, IBrush* brush) override {}
+  void StrokeEllipse(const Rect& outline_rect, IBrush* brush,
+                     float width) override {}
+  void FillEllipse(const Rect& outline_rect, IBrush* brush,
+                   float width) override {}
+
+  void StrokeGeometry(IGeometry* geometry, IBrush* brush,
+                      float width) override {}
+  void FillGeometry(IGeometry* geometry, IBrush* brush) override {}
+
+  void DrawText(const Point& offset, ITextLayout* text_layout,
+                IBrush* brush) override {}
+
+  void PushLayer(const Rect& bounds) override{};
+
+  void PopLayer() override {}
+
+  void PushState() override {}
+
+  void PopState() override {}
+
+  void EndDraw() override {}
+};
+}  // namespace cru::platform::graphics
diff --git a/include/cru/platform/graphics/TextLayout.hpp b/include/cru/platform/graphics/TextLayout.hpp
index d10c9f22..a040ec3b 100644
--- a/include/cru/platform/graphics/TextLayout.hpp
+++ b/include/cru/platform/graphics/TextLayout.hpp
@@ -20,6 +20,10 @@ struct ITextLayout : virtual IGraphicsResource {
   virtual bool IsEditMode() = 0;
   virtual void SetEditMode(bool enable) = 0;
 
+  virtual Index GetLineIndexFromCharIndex(Index char_index) = 0;
+  virtual Index GetLineCount() = 0;
+  virtual float GetLineHeight(Index line_index) = 0;
+
   virtual Rect GetTextBounds(bool includingTrailingSpace = false) = 0;
   virtual std::vector<Rect> TextRangeRect(const TextRange& text_range) = 0;
   // Width is always 0, height is line height.
diff --git a/include/cru/platform/gui/Window.hpp b/include/cru/platform/gui/Window.hpp
index f6e1d650..bab5e8fe 100644
--- a/include/cru/platform/gui/Window.hpp
+++ b/include/cru/platform/gui/Window.hpp
@@ -18,9 +18,9 @@ struct WindowStyleFlags {
   static constexpr WindowStyleFlag NoCaptionAndBorder{0b1};
 };
 
-enum class WindowVisibilityType { Show, Hide };
+enum class WindowVisibilityType { Show, Hide, Minimize };
 
-enum class FocusChangeType { Gain, Lost };
+enum class FocusChangeType { Gain, Lose };
 
 enum class MouseEnterLeaveType { Enter, Leave };
 
diff --git a/include/cru/ui/render/TextRenderObject.hpp b/include/cru/ui/render/TextRenderObject.hpp
index d6395f85..4e72e839 100644
--- a/include/cru/ui/render/TextRenderObject.hpp
+++ b/include/cru/ui/render/TextRenderObject.hpp
@@ -45,6 +45,9 @@ class TextRenderObject : public RenderObject {
   bool IsEditMode();
   void SetEditMode(bool enable);
 
+  Index GetLineCount();
+  Index GetLineIndexFromCharIndex(Index char_index);
+  float GetLineHeight(Index line_index);
   std::vector<Rect> TextRangeRect(const TextRange& text_range);
   Rect TextSinglePoint(gsl::index position, bool trailing);
   platform::graphics::TextHitTestResult TextHitTest(const Point& point);