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#pragma once
#include "ui/control.h"
namespace cru::ui::controls
{
class TextControl : public Control
{
protected:
TextControl(
const Microsoft::WRL::ComPtr<IDWriteTextFormat>& init_text_format,
const Microsoft::WRL::ComPtr<ID2D1Brush>& init_brush
);
public:
using TextLayoutHandlerPtr = FunctionPtr<void(Microsoft::WRL::ComPtr<IDWriteTextLayout>)>;
TextControl(const TextControl& other) = delete;
TextControl(TextControl&& other) = delete;
TextControl& operator=(const TextControl& other) = delete;
TextControl& operator=(TextControl&& other) = delete;
~TextControl() override = default;
String GetText() const
{
return text_;
}
void SetText(const String& text);
Microsoft::WRL::ComPtr<ID2D1Brush> GetBrush() const
{
return brush_;
}
void SetBrush(const Microsoft::WRL::ComPtr<ID2D1Brush>& brush);
Microsoft::WRL::ComPtr<IDWriteTextFormat> GetTextFormat() const
{
return text_format_;
}
void SetTextFormat(const Microsoft::WRL::ComPtr<IDWriteTextFormat>& text_format);
void AddTextLayoutHandler(TextLayoutHandlerPtr handler);
void RemoveTextLayoutHandler(const TextLayoutHandlerPtr& handler);
bool IsSelectable() const
{
return is_selectable_;
}
std::optional<TextRange> GetSelectedRange() const
{
return selected_range_;
}
void SetSelectedRange(std::optional<TextRange> text_range);
void ClearSelection()
{
SetSelectedRange(std::nullopt);
}
protected:
void SetSelectable(bool is_selectable);
protected:
void OnSizeChangedCore(events::SizeChangedEventArgs& args) override final;
void OnDraw(ID2D1DeviceContext* device_context) override;
void OnMouseDownCore(events::MouseButtonEventArgs& args) override final;
void OnMouseMoveCore(events::MouseEventArgs& args) override final;
void OnMouseUpCore(events::MouseButtonEventArgs& args) override final;
void OnLoseFocusCore(events::FocusChangeEventArgs& args) override;
Size OnMeasure(const Size& available_size) override final;
virtual void RequestChangeCaretPosition(unsigned position);
private:
void OnTextChangedCore(const String& old_text, const String& new_text);
void RecreateTextLayout();
private:
String text_;
Microsoft::WRL::ComPtr<ID2D1Brush> brush_;
Microsoft::WRL::ComPtr<ID2D1Brush> selection_brush_;
Microsoft::WRL::ComPtr<IDWriteTextFormat> text_format_;
protected:
Microsoft::WRL::ComPtr<IDWriteTextLayout> text_layout_;
private:
Vector<TextLayoutHandlerPtr> text_layout_handlers_;
bool is_selectable_ = false;
bool is_selecting_ = false;
unsigned mouse_down_position_ = 0;
std::optional<TextRange> selected_range_ = std::nullopt;
};
}
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