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GTreeView: Make double-clicking toggle openable items

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This commit is contained in:
Andreas Kling 2019-09-07 21:45:06 +02:00
parent 2f5b2685af
commit 64b1e9deec
2 changed files with 19 additions and 0 deletions
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18
Libraries/LibGUI/GTreeView.cpp
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@ -77,6 +77,24 @@ void GTreeView::mousedown_event(GMouseEvent& event)
toggle_index(index); toggle_index(index);
} }
void GTreeView::doubleclick_event(GMouseEvent& event)
{
if (!model())
return;
auto& model = *this->model();
auto adjusted_position = event.position().translated(horizontal_scrollbar().value() - frame_thickness(), vertical_scrollbar().value() - frame_thickness());
bool is_toggle;
auto index = index_at_content_position(adjusted_position, is_toggle);
if (!index.is_valid())
return;
if (selection().first() != index)
selection().set(index);
if (model.row_count(index))
toggle_index(index);
}
void GTreeView::toggle_index(const GModelIndex& index) void GTreeView::toggle_index(const GModelIndex& index)
{ {
ASSERT(model()->row_count(index)); ASSERT(model()->row_count(index));

1
Libraries/LibGUI/GTreeView.h
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@ -13,6 +13,7 @@ public:
protected: protected:
virtual void paint_event(GPaintEvent&) override; virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override; virtual void mousedown_event(GMouseEvent&) override;
virtual void doubleclick_event(GMouseEvent&) override;
virtual void keydown_event(GKeyEvent&) override; virtual void keydown_event(GKeyEvent&) override;
virtual void did_update_selection() override; virtual void did_update_selection() override;
virtual void did_update_model() override; virtual void did_update_model() override;