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LibGUI: Support top-to-bottom flow in IconView

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Sometimes you might want your icons to flow from top-to-bottom instead
of from left-to-right. :^)
This commit is contained in:
Andreas Kling 2020-12-27 14:44:49 +01:00
parent 0117c57418
commit 8b31833650
2 changed files with 104 additions and 31 deletions
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11
Libraries/LibGUI/IconView.h
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@ -38,6 +38,14 @@ class IconView : public AbstractView {
public:
virtual ~IconView() override;
enum class FlowDirection {
LeftToRight,
TopToBottom,
};
FlowDirection flow_direction() const { return m_flow_direction; }
void set_flow_direction(FlowDirection);
int content_width() const;
int horizontal_padding() const { return m_horizontal_padding; }
@ -120,6 +128,7 @@ private:
void get_item_rects(int item_index, ItemData& item_data, const Gfx::Font&) const;
bool update_rubber_banding(const Gfx::IntPoint&);
void scroll_out_of_view_timer_fired();
int items_per_page() const;
void reinit_item_cache() const;
int model_index_to_item_index(const ModelIndex& model_index) const
@ -158,6 +167,8 @@ private:
ModelIndex m_drop_candidate_index;
FlowDirection m_flow_direction { FlowDirection::LeftToRight };
mutable Vector<ItemData> m_item_data_cache;
mutable int m_selected_count_cache { 0 };
mutable int m_first_selected_hint { 0 };