1 files changed, 63 insertions, 0 deletions
diff --git a/include/cru/platform/graphics/direct2d/TextLayout.h b/include/cru/platform/graphics/direct2d/TextLayout.h
new file mode 100644
index 00000000..9f2e75a9
--- /dev/null
+++ b/include/cru/platform/graphics/direct2d/TextLayout.h
@@ -0,0 +1,63 @@
+#pragma once
+#include "ComResource.h"
+#include "Resource.h"
+
+#include "cru/platform/graphics/TextLayout.h"
+
+#include <limits>
+#include <memory>
+
+namespace cru::platform::graphics::direct2d {
+class DWriteFont;
+
+class CRU_WIN_GRAPHICS_DIRECT_API DWriteTextLayout
+    : public DirectGraphicsResource,
+      public virtual ITextLayout,
+      public virtual IComResource<IDWriteTextLayout> {
+ public:
+  DWriteTextLayout(DirectGraphicsFactory* factory, std::shared_ptr<IFont> font,
+                   String text);
+
+  CRU_DELETE_COPY(DWriteTextLayout)
+  CRU_DELETE_MOVE(DWriteTextLayout)
+
+  ~DWriteTextLayout() override;
+
+ public:
+  IDWriteTextLayout* GetComInterface() const override {
+    return text_layout_.Get();
+  }
+
+ public:
+  String GetText() override;
+  void SetText(String new_text) override;
+
+  std::shared_ptr<IFont> GetFont() override;
+  void SetFont(std::shared_ptr<IFont> font) override;
+
+  void SetMaxWidth(float max_width) override;
+  void SetMaxHeight(float max_height) override;
+
+  bool IsEditMode() override;
+  void SetEditMode(bool enable) override;
+
+  Index GetLineIndexFromCharIndex(Index char_index) override;
+  float GetLineHeight(Index line_index) override;
+  Index GetLineCount() override;
+
+  Rect GetTextBounds(bool includingTrailingSpace = false) override;
+  // Return empty vector if text_range.count is 0. Text range could be in
+  // reverse direction, it should be normalized first in implementation.
+  std::vector<Rect> TextRangeRect(const TextRange& text_range) override;
+  Rect TextSinglePoint(Index position, bool trailing) override;
+  TextHitTestResult HitTest(const Point& point) override;
+
+ private:
+  bool edit_mode_ = false;
+  String text_;
+  std::shared_ptr<DWriteFont> font_;
+  float max_width_ = std::numeric_limits<float>::max();
+  float max_height_ = std::numeric_limits<float>::max();
+  Microsoft::WRL::ComPtr<IDWriteTextLayout> text_layout_;
+};
+}  // namespace cru::platform::graphics::direct2d