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#pragma once
#include "RenderObject.hpp"
#include "cru/platform/graph/util/Painter.hpp"
namespace cru::ui::render {
class ScrollRenderObject : public RenderObject {
public:
ScrollRenderObject() : RenderObject(ChildMode::Single) {}
CRU_DELETE_COPY(ScrollRenderObject)
CRU_DELETE_MOVE(ScrollRenderObject)
~ScrollRenderObject() override = default;
void Draw(platform::graph::IPainter* painter) override;
RenderObject* HitTest(const Point& point) override;
Point GetScrollOffset() { return scroll_offset_; }
void SetScrollOffset(const Point& offset);
protected:
// Logic:
// If available size is bigger than child's preferred size, then child's
// preferred size is taken.
// If not, all available size is taken while forming a scroll area.
Size OnMeasureContent(const MeasureRequirement& requirement) override;
void OnLayoutContent(const Rect& content_rect) override;
private:
Point scroll_offset_;
};
} // namespace cru::ui::render
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