ladybird/LibGUI/GTreeView.h
Andreas Kling b181263b9f GTreeView: Factor paint traversal into a shared function.
This way it can be used by hit testing as well, guaranteeing that everything
stays consistent.
2019-03-29 17:30:27 +01:00

33 lines
954 B
C++

#pragma once
#include <LibGUI/GAbstractView.h>
class GTreeView : public GAbstractView {
public:
explicit GTreeView(GWidget*);
virtual ~GTreeView() override;
virtual const char* class_name() const override { return "GTreeView"; }
GModelIndex index_at_content_position(const Point&) const;
protected:
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
private:
int item_height() const { return 16; }
int max_item_width() const { return frame_inner_rect().width(); }
int indent_width_in_pixels() const { return 12; }
int icon_size() const { return 16; }
int icon_spacing() const { return 4; }
template<typename Callback>
void traverse_in_paint_order(Callback) const;
struct MetadataForIndex;
MetadataForIndex& ensure_metadata_for_index(const GModelIndex&) const;
mutable HashMap<void*, OwnPtr<MetadataForIndex>> m_view_metadata;
};