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HackStudio: Allow rubber-band selection of widgets

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This patch implements basic rubber-banding. Perhaps this mechanism can
be generalized somehow, but it's not clear to me how that would work
at the moment.
This commit is contained in:
Andreas Kling 2019-11-16 19:17:27 +01:00
parent 196b64c0ae
commit 69dee20761
3 changed files with 91 additions and 10 deletions
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11
DevTools/HackStudio/CursorTool.cpp
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@ -29,6 +29,8 @@ void CursorTool::on_mousedown(GMouseEvent& event)
}
} else {
m_editor.selection().clear();
form_widget.set_rubber_banding({}, true);
form_widget.set_rubber_band_origin({}, event.position());
}
// FIXME: Do we need to update any part of the FormEditorWidget outside the FormWidget?
form_widget.update();
@ -49,15 +51,21 @@ void CursorTool::on_mouseup(GMouseEvent& event)
}
}
m_dragging = false;
form_widget.set_rubber_banding({}, false);
}
}
void CursorTool::on_mousemove(GMouseEvent& event)
{
dbg() << "CursorTool::on_mousemove";
auto& form_widget = m_editor.form_widget();
if (form_widget.is_rubber_banding({})) {
form_widget.set_rubber_band_position({}, event.position());
return;
}
if (!m_dragging && event.buttons() & GMouseButton::Left && event.position() != m_drag_origin) {
auto& form_widget = m_editor.form_widget();
auto result = form_widget.hit_test(event.position(), GWidget::ShouldRespectGreediness::No);
if (result.widget && result.widget != &form_widget) {
if (!m_editor.selection().contains(*result.widget)) {
@ -82,6 +90,7 @@ void CursorTool::on_mousemove(GMouseEvent& event)
m_editor.model().update();
return;
}
}
void CursorTool::on_keydown(GKeyEvent& event)