From 75ff8a6a05afd02aaadf7e3049b0a0e305241182 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Fri, 24 Apr 2020 00:03:16 +0800
Subject: ...

---
 include/cru/ui/render/text_render_object.hpp | 40 +++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 10 deletions(-)

(limited to 'include/cru/ui/render')

diff --git a/include/cru/ui/render/text_render_object.hpp b/include/cru/ui/render/text_render_object.hpp
index c062c9f0..4b1e91e0 100644
--- a/include/cru/ui/render/text_render_object.hpp
+++ b/include/cru/ui/render/text_render_object.hpp
@@ -5,10 +5,14 @@
 
 namespace cru::ui::render {
 class TextRenderObject : public RenderObject {
+ public:
+  constexpr static float default_caret_width = 2;
+
  public:
   TextRenderObject(std::shared_ptr<platform::graph::IBrush> brush,
                    std::shared_ptr<platform::graph::IFont> font,
-                   std::shared_ptr<platform::graph::IBrush> selection_brush);
+                   std::shared_ptr<platform::graph::IBrush> selection_brush,
+                   std::shared_ptr<platform::graph::IBrush> caret_brush);
   TextRenderObject(const TextRenderObject& other) = delete;
   TextRenderObject(TextRenderObject&& other) = delete;
   TextRenderObject& operator=(const TextRenderObject& other) = delete;
@@ -19,30 +23,41 @@ class TextRenderObject : public RenderObject {
   void SetText(std::string new_text);
 
   std::shared_ptr<platform::graph::IBrush> GetBrush() const { return brush_; }
-  void SetBrush(std::shared_ptr<platform::graph::IBrush> new_brush) {
-    new_brush.swap(brush_);
-  }
+  void SetBrush(std::shared_ptr<platform::graph::IBrush> new_brush);
 
   std::shared_ptr<platform::graph::IFont> GetFont() const;
   void SetFont(std::shared_ptr<platform::graph::IFont> font);
 
   std::vector<Rect> TextRangeRect(const TextRange& text_range);
-  Point TextSingleRect(gsl::index position, bool trailing);
+  Point TextSinglePoint(gsl::index position, bool trailing);
   platform::graph::TextHitTestResult TextHitTest(const Point& point);
 
   std::optional<TextRange> GetSelectionRange() const {
     return selection_range_;
   }
-  void SetSelectionRange(std::optional<TextRange> new_range) {
-    selection_range_ = std::move(new_range);
-  }
+  void SetSelectionRange(std::optional<TextRange> new_range);
 
   std::shared_ptr<platform::graph::IBrush> GetSelectionBrush() const {
     return selection_brush_;
   }
-  void SetSelectionBrush(std::shared_ptr<platform::graph::IBrush> new_brush) {
-    new_brush.swap(selection_brush_);
+  void SetSelectionBrush(std::shared_ptr<platform::graph::IBrush> new_brush);
+
+  bool IsDrawCaret() const { return draw_caret_; }
+  void SetDrawCaret(bool draw_caret);
+  void ToggleDrawCaret() { SetDrawCaret(!IsDrawCaret()); }
+
+  // Caret position can be any value. When it is negative, 0 is used. When it
+  // exceeds the size of the string, the size of the string is used.
+  gsl::index GetCaretPosition() const { return caret_position_; }
+  void SetCaretPosition(gsl::index position);
+
+  std::shared_ptr<platform::graph::IBrush> GetCaretBrush() const {
+    return caret_brush_;
   }
+  void GetCaretBrush(std::shared_ptr<platform::graph::IBrush> brush);
+
+  float GetCaretWidth() const { return caret_width_; }
+  void SetCaretWidth(float width);
 
   void Draw(platform::graph::IPainter* painter) override;
 
@@ -61,5 +76,10 @@ class TextRenderObject : public RenderObject {
 
   std::optional<TextRange> selection_range_ = std::nullopt;
   std::shared_ptr<platform::graph::IBrush> selection_brush_;
+
+  bool draw_caret_ = false;
+  gsl::index caret_position_ = 0;
+  std::shared_ptr<platform::graph::IBrush> caret_brush_;
+  float caret_width_ = default_caret_width;
 };
 }  // namespace cru::ui::render
-- 
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