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SpaceAnalyzer: Fix the crash caused by using arrow keys
Previously, SpaceAnalyzer set focus on the selected BreadcrumbButton. Using arrow keys triggered the keydown_event of the AbstractButton, which later on caused a Function object to be deleted while it is still being used. This change sets the focus on TreeMapWidget and adds an event handler to TreeMapWidget for keydown events. Fixes #13254.
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3 changed files with 11 additions and 0 deletions
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@ -306,6 +306,14 @@ void TreeMapWidget::doubleclick_event(GUI::MouseEvent& event)
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}
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}
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void TreeMapWidget::keydown_event(GUI::KeyEvent& event)
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{
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if (event.key() == KeyCode::Key_Left)
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set_viewpoint(m_viewpoint == 0 ? m_path.size() : m_viewpoint - 1);
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else if (event.key() == KeyCode::Key_Right)
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set_viewpoint(m_viewpoint == m_path.size() ? 0 : m_viewpoint + 1);
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}
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void TreeMapWidget::mousewheel_event(GUI::MouseEvent& event)
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{
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int delta = event.wheel_delta_y();
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