C++ QMdiSubWindow::systemMenu方法代码示例

// Create a MDI subwindow for the form.
QMdiSubWindow *DockedMainWindow::createMdiSubWindow(QWidget *fw, Qt::WindowFlags f, const QKeySequence &designerCloseActionShortCut)
{
    QMdiSubWindow *rc = mdiArea()->addSubWindow(fw, f);
    // Make action shortcuts respond only if focused to avoid conflicts with
    // designer menu actions
    if (designerCloseActionShortCut == QKeySequence(QKeySequence::Close)) {
        const ActionList systemMenuActions = rc->systemMenu()->actions();
        if (!systemMenuActions.empty()) {
            const ActionList::const_iterator cend = systemMenuActions.constEnd();
            for (ActionList::const_iterator it = systemMenuActions.constBegin(); it != cend; ++it) {
                if ( (*it)->shortcut() == designerCloseActionShortCut) {
                    (*it)->setShortcutContext(Qt::WidgetShortcut);
                    break;
                }
            }
        }
    }
    return rc;
}

//.........这里部分代码省略.........
	basicControlsLayout->setColumnStretch(5, 1);


	// setup spinbox for selecting FX-channel
	m_effectChannelNumber = new fxLineLcdSpinBox( 2, NULL, tr( "FX channel" ) );

	basicControlsLayout->addWidget( m_effectChannelNumber, 0, 6 );
	basicControlsLayout->setAlignment( m_effectChannelNumber, widgetAlignment );

	label = new QLabel( tr( "FX" ), this );
	label->setStyleSheet( labelStyleSheet );
	basicControlsLayout->addWidget( label, 1, 6);
	basicControlsLayout->setAlignment( label, labelAlignment );

	QPushButton* saveSettingsBtn = new QPushButton( embed::getIconPixmap( "project_save" ), QString() );
	saveSettingsBtn->setMinimumSize( 32, 32 );

	connect( saveSettingsBtn, SIGNAL( clicked() ), this, SLOT( saveSettingsBtnClicked() ) );

	ToolTip::add( saveSettingsBtn, tr( "Save current instrument track settings in a preset file" ) );
	saveSettingsBtn->setWhatsThis(
		tr( "Click here, if you want to save current instrument track settings in a preset file. "
			"Later you can load this preset by double-clicking it in the preset-browser." ) );

	basicControlsLayout->addWidget( saveSettingsBtn, 0, 7 );

	label = new QLabel( tr( "SAVE" ), this );
	label->setStyleSheet( labelStyleSheet );
	basicControlsLayout->addWidget( label, 1, 7);
	basicControlsLayout->setAlignment( label, labelAlignment );

	generalSettingsLayout->addLayout( basicControlsLayout );


	m_tabWidget = new TabWidget( "", this );
	m_tabWidget->setFixedHeight( INSTRUMENT_HEIGHT + 10 );


	// create tab-widgets
	m_ssView = new InstrumentSoundShapingView( m_tabWidget );

	// FUNC tab
	QWidget* instrumentFunctions = new QWidget( m_tabWidget );
	QVBoxLayout* instrumentFunctionsLayout = new QVBoxLayout( instrumentFunctions );
	instrumentFunctionsLayout->setMargin( 5 );
	m_noteStackingView = new InstrumentFunctionNoteStackingView( &m_track->m_noteStacking );
	m_arpeggioView = new InstrumentFunctionArpeggioView( &m_track->m_arpeggio );

	instrumentFunctionsLayout->addWidget( m_noteStackingView );
	instrumentFunctionsLayout->addWidget( m_arpeggioView );
	instrumentFunctionsLayout->addStretch();

	// MIDI tab
	m_midiView = new InstrumentMidiIOView( m_tabWidget );

	// FX tab
	m_effectView = new EffectRackView( m_track->m_audioPort.effects(), m_tabWidget );

	// MISC tab
	m_miscView = new InstrumentMiscView( m_track, m_tabWidget );


	m_tabWidget->addTab( m_ssView, tr( "ENV/LFO" ), 1 );
	m_tabWidget->addTab( instrumentFunctions, tr( "FUNC" ), 2 );
	m_tabWidget->addTab( m_effectView, tr( "FX" ), 3 );
	m_tabWidget->addTab( m_midiView, tr( "MIDI" ), 4 );
	m_tabWidget->addTab( m_miscView, tr( "MISC" ), 5 );

	// setup piano-widget
	m_pianoView = new PianoView( this );
	m_pianoView->setFixedSize( INSTRUMENT_WIDTH, PIANO_HEIGHT );

	vlayout->addWidget( generalSettingsWidget );
	vlayout->addWidget( m_tabWidget );
	vlayout->addWidget( m_pianoView );


	setModel( _itv->model() );

	updateInstrumentView();

	setFixedWidth( INSTRUMENT_WIDTH );
	resize( sizeHint() );

	QMdiSubWindow * subWin = gui->mainWindow()->addWindowedWidget( this );
	Qt::WindowFlags flags = subWin->windowFlags();
	flags |= Qt::MSWindowsFixedSizeDialogHint;
	flags &= ~Qt::WindowMaximizeButtonHint;
	subWin->setWindowFlags( flags );

	// Hide the Size and Maximize options from the system menu
	// since the dialog size is fixed.
	QMenu * systemMenu = subWin->systemMenu();
	systemMenu->actions().at( 2 )->setVisible( false ); // Size
	systemMenu->actions().at( 4 )->setVisible( false ); // Maximize

	subWin->setWindowIcon( embed::getIconPixmap( "instrument_track" ) );
	subWin->setFixedSize( subWin->size() );
	subWin->hide();
}

//.........这里部分代码省略.........
	QVBoxLayout* generalSettingsLayout = new QVBoxLayout(generalSettingsWidget);

	generalSettingsLayout->setContentsMargins(8, 18, 8, 8);
	generalSettingsLayout->setSpacing(6);

	QWidget* nameWidget = new QWidget(generalSettingsWidget);
	QHBoxLayout* nameLayout = new QHBoxLayout(nameWidget);
	nameLayout->setContentsMargins(0, 0, 0, 0);
	nameLayout->setSpacing(2);

	// setup line edit for changing sample track name
	m_nameLineEdit = new QLineEdit;
	m_nameLineEdit->setFont(pointSize<9>(m_nameLineEdit->font()));
	connect(m_nameLineEdit, SIGNAL(textChanged(const QString &)),
				this, SLOT(textChanged(const QString &)));

	m_nameLineEdit->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred));
	nameLayout->addWidget(m_nameLineEdit);


	generalSettingsLayout->addWidget(nameWidget);


	QGridLayout* basicControlsLayout = new QGridLayout;
	basicControlsLayout->setHorizontalSpacing(3);
	basicControlsLayout->setVerticalSpacing(0);
	basicControlsLayout->setContentsMargins(0, 0, 0, 0);

	QString labelStyleSheet = "font-size: 6pt;";
	Qt::Alignment labelAlignment = Qt::AlignHCenter | Qt::AlignTop;
	Qt::Alignment widgetAlignment = Qt::AlignHCenter | Qt::AlignCenter;

	// set up volume knob
	m_volumeKnob = new Knob(knobBright_26, NULL, tr("Sample volume"));
	m_volumeKnob->setVolumeKnob(true);
	m_volumeKnob->setHintText(tr("Volume:"), "%");

	basicControlsLayout->addWidget(m_volumeKnob, 0, 0);
	basicControlsLayout->setAlignment(m_volumeKnob, widgetAlignment);

	QLabel *label = new QLabel(tr("VOL"), this);
	label->setStyleSheet(labelStyleSheet);
	basicControlsLayout->addWidget(label, 1, 0);
	basicControlsLayout->setAlignment(label, labelAlignment);


	// set up panning knob
	m_panningKnob = new Knob(knobBright_26, NULL, tr("Panning"));
	m_panningKnob->setHintText(tr("Panning:"), "");

	basicControlsLayout->addWidget(m_panningKnob, 0, 1);
	basicControlsLayout->setAlignment(m_panningKnob, widgetAlignment);

	label = new QLabel(tr("PAN"),this);
	label->setStyleSheet(labelStyleSheet);
	basicControlsLayout->addWidget(label, 1, 1);
	basicControlsLayout->setAlignment(label, labelAlignment);


	basicControlsLayout->setColumnStretch(2, 1);


	// setup spinbox for selecting FX-channel
	m_effectChannelNumber = new FxLineLcdSpinBox(2, NULL, tr("FX channel"), m_stv);

	basicControlsLayout->addWidget(m_effectChannelNumber, 0, 3);
	basicControlsLayout->setAlignment(m_effectChannelNumber, widgetAlignment);

	label = new QLabel(tr("FX"), this);
	label->setStyleSheet(labelStyleSheet);
	basicControlsLayout->addWidget(label, 1, 3);
	basicControlsLayout->setAlignment(label, labelAlignment);

	generalSettingsLayout->addLayout(basicControlsLayout);

	m_effectRack = new EffectRackView(tv->model()->audioPort()->effects());
	m_effectRack->setFixedSize(240, 242);

	vlayout->addWidget(generalSettingsWidget);
	vlayout->addWidget(m_effectRack);


	setModel(tv->model());

	QMdiSubWindow * subWin = gui->mainWindow()->addWindowedWidget(this);
	Qt::WindowFlags flags = subWin->windowFlags();
	flags |= Qt::MSWindowsFixedSizeDialogHint;
	flags &= ~Qt::WindowMaximizeButtonHint;
	subWin->setWindowFlags(flags);

	// Hide the Size and Maximize options from the system menu
	// since the dialog size is fixed.
	QMenu * systemMenu = subWin->systemMenu();
	systemMenu->actions().at(2)->setVisible(false); // Size
	systemMenu->actions().at(4)->setVisible(false); // Maximize

	subWin->setWindowIcon(embed::getIconPixmap("sample_track"));
	subWin->setFixedSize(subWin->size());
	subWin->hide();
}