...

10 files changed, 110 insertions, 14 deletions

diff --git a/include/cru/platform/graph/font.hpp b/include/cru/platform/graph/font.hpp
index 98ce80e7..d0aa2d28 100644
--- a/include/cru/platform/graph/font.hpp
+++ b/include/cru/platform/graph/font.hpp
@@ -2,5 +2,7 @@
 #include "resource.hpp"
 
 namespace cru::platform::graph {
-struct IFont : virtual IGraphResource {};
+struct IFont : virtual IGraphResource {
+  virtual float GetFontSize() = 0;
+};
 }  // namespace cru::platform::graph
diff --git a/include/cru/ui/controls/text_block.hpp b/include/cru/ui/controls/text_block.hpp
index 708b62f1..02e0eb2b 100644
--- a/include/cru/ui/controls/text_block.hpp
+++ b/include/cru/ui/controls/text_block.hpp
@@ -1,14 +1,18 @@
 #pragma once
 #include "../no_child_control.hpp"
 
+#include "text_common.hpp"
+
 #include <memory>
 
 namespace cru::ui::render {
+class StackLayoutRenderObject;
 class TextRenderObject;
-}
+class CanvasRenderObject;
+}  // namespace cru::ui::render
 
 namespace cru::ui::controls {
-class TextBlock : public NoChildControl {
+class TextBlock : public NoChildControl, public virtual ITextControl {
  public:
   static constexpr std::string_view control_type = "TextBlock";
 
@@ -24,16 +28,23 @@ class TextBlock : public NoChildControl {
   TextBlock& operator=(TextBlock&& other) = delete;
   ~TextBlock() override;
 
-  std::string_view GetControlType() const final {
-    return control_type;
-  }
+  std::string_view GetControlType() const final { return control_type; }
 
   render::RenderObject* GetRenderObject() const override;
 
   std::string GetText() const;
   void SetText(std::string text);
 
+  render::TextRenderObject* GetTextRenderObject() override;
+  render::CanvasRenderObject* GetCaretRenderObject() override;
+  platform::graph::IBrush* GetCaretBrush() override;
+
  private:
-  std::unique_ptr<render::TextRenderObject> render_object_;
+  std::unique_ptr<render::StackLayoutRenderObject> root_render_object_;
+  std::unique_ptr<render::TextRenderObject> text_render_object_;
+  std::unique_ptr<render::CanvasRenderObject> caret_render_object_;
+  std::shared_ptr<platform::graph::IBrush> caret_brush_;
+
+  std::unique_ptr<TextControlService> service_;
 };
 }  // namespace cru::ui::controls
diff --git a/include/cru/ui/controls/text_box.hpp b/include/cru/ui/controls/text_box.hpp
index 76a6299e..888a9527 100644
--- a/include/cru/ui/controls/text_box.hpp
+++ b/include/cru/ui/controls/text_box.hpp
@@ -5,6 +5,7 @@
 
 namespace cru::ui::render {
 class BorderRenderObject;
+class StackLayoutRenderObject;
 class TextRenderObject;
 class CanvasRenderObject;
 }  // namespace cru::ui::render
@@ -27,6 +28,7 @@ class TextBox : public NoChildControl {
 
  private:
   std::unique_ptr<render::BorderRenderObject> border_render_object_;
+  std::unique_ptr<render::StackLayoutRenderObject> stack_layout_render_object_;
   std::unique_ptr<render::TextRenderObject> text_render_object_;
   std::unique_ptr<render::CanvasRenderObject> caret_render_object_;
 };
diff --git a/include/cru/ui/controls/text_common.hpp b/include/cru/ui/controls/text_common.hpp
new file mode 100644
index 00000000..7398764f
--- /dev/null
+++ b/include/cru/ui/controls/text_common.hpp
@@ -0,0 +1,66 @@
+#pragma once
+#include "../base.hpp"
+
+#include "cru/ui/ui_event.hpp"
+
+#include <functional>
+#include <optional>
+
+namespace cru::platform::graph {
+struct IBrush;
+}
+
+namespace cru::ui::render {
+class TextRenderObject;
+class CanvasRenderObject;
+}  // namespace cru::ui::render
+
+namespace cru::ui::controls {
+
+struct ITextControl : virtual Interface {
+  virtual render::TextRenderObject* GetTextRenderObject() = 0;
+  virtual render::CanvasRenderObject* GetCaretRenderObject() = 0;
+  virtual platform::graph::IBrush* GetCaretBrush() = 0;
+};
+
+class TextControlService : public Object {
+ public:
+  TextControlService(Control* control, ITextControl* text_control);
+
+  CRU_DELETE_COPY(TextControlService)
+  CRU_DELETE_MOVE(TextControlService)
+
+  ~TextControlService();
+
+ public:
+  int GetCaretPosition() { return caret_position_; }
+  void SetCaretPosition(int position) { caret_position_ = position; }
+
+  bool IsCaretVisible() { return caret_visible_; }
+  void SetCaretVisible(bool visible);
+
+  // please set correct offset before calling this
+  void DrawCaret(platform::graph::IPainter* painter);
+
+ private:
+  void SetupCaretTimer();
+  void TearDownCaretTimer();
+
+ private:
+  Control* control_;
+  ITextControl* text_control_;
+  std::vector<EventRevokerGuard> event_revoker_guards_;
+
+  bool caret_visible_ = false;
+  int caret_position_ = 0;
+  unsigned long caret_timer_tag_;
+  // this is used for blinking of caret
+  bool caret_show_ = true;
+
+  // nullopt means not selecting
+  std::optional<MouseButton> select_down_button_;
+
+  // before the char
+  int select_start_position_;
+};
+}  // namespace cru::ui::controls
diff --git a/include/cru/ui/render/layout_utility.hpp b/include/cru/ui/render/layout_utility.hpp
index 38191ad5..5cf74e71 100644
--- a/include/cru/ui/render/layout_utility.hpp
+++ b/include/cru/ui/render/layout_utility.hpp
@@ -1,6 +1,7 @@
+#pragma once
 #include "../base.hpp"
 
 namespace cru::ui::render {
-  Size Min(const Size& left, const Size& right);
-  Size Max(const Size& left, const Size& right);
-}
+Size Min(const Size& left, const Size& right);
+Size Max(const Size& left, const Size& right);
+}  // namespace cru::ui::render
diff --git a/include/cru/ui/render/render_object.hpp b/include/cru/ui/render/render_object.hpp
index 0f0cb8df..d9851757 100644
--- a/include/cru/ui/render/render_object.hpp
+++ b/include/cru/ui/render/render_object.hpp
@@ -70,6 +70,8 @@ class RenderObject : public Object {
 
   Point GetOffset() const { return offset_; }
   void SetOffset(const Point& offset) { offset_ = offset; }
+  Point GetTotalOffset() const;
+  Point FromRootToContent(const Point& point) const;
   Size GetSize() const { return size_; }
   void SetSize(const Size& size) { size_ = size; }
 
@@ -91,9 +93,7 @@ class RenderObject : public Object {
 
   virtual RenderObject* HitTest(const Point& point) = 0;
 
- protected:
-  void SetChildMode(ChildMode mode) { child_mode_ = mode; }
-
+ public:
   void InvalidateLayout() const {
     if (render_host_ != nullptr) render_host_->InvalidateLayout();
   }
@@ -103,6 +103,9 @@ class RenderObject : public Object {
   }
 
  protected:
+  void SetChildMode(ChildMode mode) { child_mode_ = mode; }
+
+ protected:
   virtual void OnParentChanged(RenderObject* old_parent,
                                RenderObject* new_parent);
 
diff --git a/include/cru/ui/render/text_render_object.hpp b/include/cru/ui/render/text_render_object.hpp
index 5394ee0a..33d34f78 100644
--- a/include/cru/ui/render/text_render_object.hpp
+++ b/include/cru/ui/render/text_render_object.hpp
@@ -1,6 +1,8 @@
 #pragma once
 #include "render_object.hpp"
 
+#include "cru/platform/graph/text_layout.hpp"
+
 #include <memory>
 #include <string>
 
@@ -8,7 +10,6 @@
 namespace cru::platform::graph {
 struct IBrush;
 struct IFont;
-struct ITextLayout;
 }  // namespace cru::platform::graph
 
 namespace cru::ui::render {
@@ -34,6 +35,10 @@ class TextRenderObject : public RenderObject {
   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(int position, bool trailing);
+  platform::graph::TextHitTestResult TextHitTest(const Point& point);
+
   std::optional<TextRange> GetSelectionRange() const {
     return selection_range_;
   }
diff --git a/include/cru/ui/ui_event.hpp b/include/cru/ui/ui_event.hpp
index 147d3da6..c5af2b61 100644
--- a/include/cru/ui/ui_event.hpp
+++ b/include/cru/ui/ui_event.hpp
@@ -1,6 +1,8 @@
 #pragma once
 #include "base.hpp"
 
+#include "cru/common/event.hpp"
+
 #include <memory>
 #include <optional>
 #include <type_traits>
@@ -80,6 +82,7 @@ class MouseEventArgs : public UiEventArgs {
   MouseEventArgs& operator=(MouseEventArgs&& other) = default;
   ~MouseEventArgs() override = default;
 
+  // This point is relative to window client lefttop.
   Point GetPoint() const { return point_.value_or(Point{}); }
 
  private:
diff --git a/include/cru/ui/ui_manager.hpp b/include/cru/ui/ui_manager.hpp
index f196444c..8e5c7075 100644
--- a/include/cru/ui/ui_manager.hpp
+++ b/include/cru/ui/ui_manager.hpp
@@ -15,6 +15,7 @@ struct ThemeResources {
   std::shared_ptr<platform::graph::IFont> default_font;
   std::shared_ptr<platform::graph::IBrush> text_brush;
   std::shared_ptr<platform::graph::IBrush> text_selection_brush;
+  std::shared_ptr<platform::graph::IBrush> caret_brush;
   controls::ButtonStyle button_style;
 };
 
diff --git a/include/cru/win/graph/direct/font.hpp b/include/cru/win/graph/direct/font.hpp
index 08213ca5..ee2e319b 100644
--- a/include/cru/win/graph/direct/font.hpp
+++ b/include/cru/win/graph/direct/font.hpp
@@ -24,6 +24,8 @@ class DWriteFont : public DirectGraphResource,
     return text_format_.Get();
   }
 
+  float GetFontSize() override;
+
  private:
   Microsoft::WRL::ComPtr<IDWriteTextFormat> text_format_;
 };