ladybird/LibGUI/GTreeView.h

43 lines
1.4 KiB
C++

#pragma once
#include <LibGUI/GAbstractView.h>
class GTreeView : public GAbstractView {
public:
explicit GTreeView(GWidget*);
virtual ~GTreeView() override;
virtual void scroll_into_view(const GModelIndex&, Orientation);
virtual const char* class_name() const override { return "GTreeView"; }
protected:
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void keydown_event(GKeyEvent&) override;
virtual void did_update_selection() override;
virtual void did_update_model() override;
private:
GModelIndex index_at_content_position(const Point&, bool& is_toggle) const;
int item_height() const { return 16; }
int max_item_width() const { return frame_inner_rect().width(); }
int indent_width_in_pixels() const { return 16; }
int icon_size() const { return 16; }
int icon_spacing() const { return 2; }
int toggle_size() const { return 9; }
int text_padding() const { return 2; }
void update_content_size();
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;
RetainPtr<GraphicsBitmap> m_expand_bitmap;
RetainPtr<GraphicsBitmap> m_collapse_bitmap;
};