void SymmetryModeCommand::onExecute(Context* ctx)
{
auto& enabled = Preferences::instance().symmetryMode.enabled;
// When the m_mode is NONE, it toggles the whole symmetry controls in
// the context bar.
if (m_mode == app::gen::SymmetryMode::NONE) {
enabled(!enabled());
}
// In other case it toggles the specific document symmetry specified
// in m_mode.
else {
Doc* doc = ctx->activeDocument();
DocumentPreferences& docPref = Preferences::instance().document(doc);
const app::gen::SymmetryMode actual = docPref.symmetry.mode();
// If the symmetry options are hidden, we'll always show them and
// activate the m_mode symmetry. We cannot just toggle the
// symmetry when the options aren't visible in the context bar,
// because if m_mode is checked, this would cause to show the
// symmetry options in the context bar but with a unchecked m_mode
// symmetry.
if (!enabled()) {
docPref.symmetry.mode(app::gen::SymmetryMode(int(m_mode) | int(actual)));
enabled(true);
}
// If the symmetry options are visible, we just switch the m_mode
// symmetry.
else {
docPref.symmetry.mode(app::gen::SymmetryMode(int(m_mode) ^ int(actual)));
}
// Redraw all editors
//
// TODO It looks like only the current editor shows the symmetry,
// so it's not necessary to invalidate all editors (only the
// current one).
doc->notifyGeneralUpdate();
// Redraw the buttons in the context bar.
//
// TODO Same with context bar, in the future the context bar could
// be listening the DocPref changes to be automatically
// invalidated (like it already does with symmetryMode.enabled)
App::instance()->contextBar()->updateForActiveTool();
}
}
