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Code Issues Activity Actions

LibGUI: Allow scrolling through a ComboBox with the mouse wheel

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This commit is contained in:
Andreas Kling 2020-05-12 15:10:31 +02:00
parent 18ff75e67b
commit e064999e0d
4 changed files with 51 additions and 26 deletions
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25
Libraries/LibGUI/ComboBox.cpp
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@ -35,9 +35,28 @@
namespace GUI {
class ComboBoxEditor final : public TextEditor {
C_OBJECT(ComboBoxEditor);
public:
Function<void(int delta)> on_mousewheel;
private:
ComboBoxEditor()
: TextEditor(TextEditor::SingleLine)
{
}
virtual void mousewheel_event(MouseEvent& event) override
{
if (on_mousewheel)
on_mousewheel(event.wheel_delta());
}
};
ComboBox::ComboBox()
{
m_editor = add<TextBox>();
m_editor = add<ComboBoxEditor>();
m_editor->on_change = [this] {
if (on_change)
on_change(m_editor->text(), m_list_view->selection().first());
@ -74,6 +93,10 @@ ComboBox::ComboBox()
on_change(m_editor->text(), index);
});
};
m_editor->on_mousewheel = [this](int delta) {
m_list_view->move_selection(delta);
};
}
ComboBox::~ComboBox()