From f23077eb0ddff77b7e114994f967189ea7607600 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 1 Mar 2020 22:32:58 +0800
Subject: Complete hit test in text layout.

---
 include/cru/platform/graph/text_layout.hpp   | 8 ++++++++
 include/cru/win/graph/direct/text_layout.hpp | 2 ++
 2 files changed, 10 insertions(+)

(limited to 'include')

diff --git a/include/cru/platform/graph/text_layout.hpp b/include/cru/platform/graph/text_layout.hpp
index 4f6e81e1..d1cfb44b 100644
--- a/include/cru/platform/graph/text_layout.hpp
+++ b/include/cru/platform/graph/text_layout.hpp
@@ -8,6 +8,12 @@
 namespace cru::platform::graph {
 struct IFont;
 
+struct TextHitTestResult {
+  int position;
+  bool trailing;
+  bool insideText;
+};
+
 struct ITextLayout : virtual IGraphResource {
   virtual std::string GetText() = 0;
   virtual void SetText(std::string new_text) = 0;
@@ -20,5 +26,7 @@ struct ITextLayout : virtual IGraphResource {
 
   virtual Rect GetTextBounds() = 0;
   virtual std::vector<Rect> TextRangeRect(const TextRange& text_range) = 0;
+  virtual Point TextSingleRect(int position, bool trailing) = 0;
+  virtual TextHitTestResult HitTest(const Point& point) = 0;
 };
 }  // namespace cru::platform::graph
diff --git a/include/cru/win/graph/direct/text_layout.hpp b/include/cru/win/graph/direct/text_layout.hpp
index 5a8f3f9c..5f7be9f3 100644
--- a/include/cru/win/graph/direct/text_layout.hpp
+++ b/include/cru/win/graph/direct/text_layout.hpp
@@ -38,6 +38,8 @@ class DWriteTextLayout : public DirectGraphResource,
 
   Rect GetTextBounds() override;
   std::vector<Rect> TextRangeRect(const TextRange& text_range) override;
+  Point TextSingleRect(int position, bool trailing) override;
+  TextHitTestResult HitTest(const Point& point) override;
 
  private:
   std::string text_;
-- 
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