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#pragma once
#include "ui/control.hpp"
namespace cru::ui::controls
{
// Done: OnMeasureContent
// Done: OnLayoutContent
// TODO: HitTest
// TODO: Draw
// TODO: ScrollBar
// TODO: MouseEvent
class ScrollControl : public Control
{
public:
enum class ScrollBarVisibility
{
None,
Auto,
Always
};
protected:
explicit ScrollControl(bool container);
public:
ScrollControl(const ScrollControl& other) = delete;
ScrollControl(ScrollControl&& other) = delete;
ScrollControl& operator=(const ScrollControl& other) = delete;
ScrollControl& operator=(ScrollControl&& other) = delete;
~ScrollControl() override;
bool IsHorizontalScrollEnabled() const
{
return horizontal_scroll_enabled_;
}
void SetHorizontalScrollEnabled(bool enable);
bool IsVerticalScrollEnabled() const
{
return vertical_scroll_enabled_;
}
void SetVerticalScrollEnabled(bool enable);
ScrollBarVisibility GetHorizontalScrollBarVisibility() const;
void SetHorizontalScrollBarVisibility(ScrollBarVisibility visibility);
ScrollBarVisibility GetVerticalScrollBarVisibility() const;
void SetVerticalScrollBarVisibility(ScrollBarVisibility visibility);
Control* HitTest(const Point& point) override final;
protected:
float GetViewWidth() const
{
return view_width_;
}
float GetViewHeight() const
{
return view_height_;
}
void SetViewWidth(float length);
void SetViewHeight(float length);
Size OnMeasureContent(const Size& available_size) override final;
void OnLayoutContent(const Rect& rect) override final;
private:
bool horizontal_scroll_enabled_ = true;
bool vertical_scroll_enabled_ = true;
ScrollBarVisibility horizontal_scroll_bar_visibility_ = ScrollBarVisibility::Auto;
ScrollBarVisibility vertical_scroll_bar_visibility_ = ScrollBarVisibility::Auto;
float offset_x_ = 0.0f;
float offset_y_ = 0.0f;
float view_width_ = 0.0f;
float view_height_ = 0.0f;
};
}
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