2 files changed, 57 insertions, 0 deletions
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.