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https://github.com/RGBCube/serenity
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42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
#pragma once
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#include <LibGUI/GAbstractView.h>
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class GTreeView : public GAbstractView {
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public:
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explicit GTreeView(GWidget*);
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virtual ~GTreeView() override;
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virtual void scroll_into_view(const GModelIndex&, Orientation);
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virtual const char* class_name() const override { return "GTreeView"; }
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protected:
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virtual void paint_event(GPaintEvent&) override;
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virtual void mousedown_event(GMouseEvent&) override;
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virtual void keydown_event(GKeyEvent&) override;
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virtual void did_update_selection() override;
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virtual void did_update_model() override;
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private:
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GModelIndex index_at_content_position(const Point&, bool& is_toggle) const;
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int item_height() const { return 16; }
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int max_item_width() const { return frame_inner_rect().width(); }
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int indent_width_in_pixels() const { return 16; }
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int icon_size() const { return 16; }
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int icon_spacing() const { return 2; }
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int toggle_size() const { return 9; }
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int text_padding() const { return 2; }
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void update_content_size();
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template<typename Callback>
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void traverse_in_paint_order(Callback) const;
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struct MetadataForIndex;
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MetadataForIndex& ensure_metadata_for_index(const GModelIndex&) const;
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mutable HashMap<void*, OwnPtr<MetadataForIndex>> m_view_metadata;
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RetainPtr<GraphicsBitmap> m_expand_bitmap;
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RetainPtr<GraphicsBitmap> m_collapse_bitmap;
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};
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