1 files changed, 101 insertions, 0 deletions
diff --git a/src/ui/controls/border_delegate.h b/src/ui/controls/border_delegate.h
new file mode 100644
index 00000000..6d8663e9
--- /dev/null
+++ b/src/ui/controls/border_delegate.h
@@ -0,0 +1,101 @@
+#pragma once
+
+#include "ui/control.h"
+
+namespace cru::ui::controls
+{
+    class BorderProperty : public PropertyChangedNotifyObject
+    {
+    public:
+        using Ptr = std::shared_ptr<BorderProperty>;
+        static Ptr Create();
+
+        constexpr static auto brush_property_name = L"Brush";
+        constexpr static auto width_property_name = L"Width";
+        constexpr static auto stroke_style_property_name = L"StrokeStyle";
+        constexpr static auto radius_x_property_name = L"RadiusX";
+        constexpr static auto radius_y_property_name = L"RadiusY";
+
+        BorderProperty() = default;
+        explicit BorderProperty(Microsoft::WRL::ComPtr<ID2D1Brush> brush);
+        BorderProperty(const BorderProperty& other) = delete;
+        BorderProperty(BorderProperty&& other) = delete;
+        BorderProperty& operator=(const BorderProperty& other) = delete;
+        BorderProperty& operator=(BorderProperty&& other) = delete;
+        ~BorderProperty() override = default;
+
+
+        Microsoft::WRL::ComPtr<ID2D1Brush> GetBrush() const
+        {
+            return brush_;
+        }
+
+        float GetWidth() const
+        {
+            return width_;
+        }
+
+        Microsoft::WRL::ComPtr<ID2D1StrokeStyle> GetStrokeStyle() const
+        {
+            return stroke_style_;
+        }
+
+        float GetRadiusX() const
+        {
+            return radius_x_;
+        }
+
+        float GetRadiusY() const
+        {
+            return radius_y_;
+        }
+
+        void SetBrush(Microsoft::WRL::ComPtr<ID2D1Brush> brush);
+        void SetWidth(float width);
+        void SetStrokeStyle(Microsoft::WRL::ComPtr<ID2D1StrokeStyle> stroke_style);
+        void SetRadiusX(float radius_x);
+        void SetRadiusY(float radius_y);
+
+    private:
+        Microsoft::WRL::ComPtr<ID2D1Brush> brush_ = nullptr;
+        float width_ = 1.0f;
+        Microsoft::WRL::ComPtr<ID2D1StrokeStyle> stroke_style_ = nullptr;
+        float radius_x_ = 0.0f;
+        float radius_y_ = 0.0f;
+    };
+
+
+    // BorderDelegate is a delegate for border painting and layout.
+    // It must bind a control and not change the binding.
+    // But multiple BorderDelegate may share a common BorderProperty.
+    class BorderDelegate : public Object
+    {
+    public:
+        explicit BorderDelegate(Control* control);
+        BorderDelegate(Control* control, std::shared_ptr<BorderProperty> border_property);
+        BorderDelegate(const BorderDelegate& other) = delete;
+        BorderDelegate(BorderDelegate&& other) = delete;
+        BorderDelegate& operator=(const BorderDelegate& other) = delete;
+        BorderDelegate& operator=(BorderDelegate&& other) = delete;
+        ~BorderDelegate() override;
+
+        std::shared_ptr<BorderProperty> GetBorderProperty() const
+        {
+            return border_property_;
+        }
+
+        void SetBorderProperty(std::shared_ptr<BorderProperty> border_property);
+
+        void Draw(ID2D1DeviceContext* device_context, const Size& size) const;
+
+        Thickness GetBorderThickness() const
+        {
+            return Thickness(border_property_->GetWidth());
+        }
+
+    private:
+        Control* control_;
+        std::shared_ptr<BorderProperty> border_property_;
+        FunctionPtr<void(String)> border_property_changed_listener_;
+    };
+}