qdesigner_command.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

void DeleteStackedWidgetPageCommand::redo()
{
    removePage();
    cheapUpdate();
}

void DeleteStackedWidgetPageCommand::undo()
{
    addPage();
    cheapUpdate();
}

// ---- AddStackedWidgetPageCommand ----
AddStackedWidgetPageCommand::AddStackedWidgetPageCommand(QDesignerFormWindowInterface *formWindow)
    : StackedWidgetCommand(formWindow)
{
}

AddStackedWidgetPageCommand::~AddStackedWidgetPageCommand()
{
}

void AddStackedWidgetPageCommand::init(QStackedWidget *stackedWidget)
{
    init(stackedWidget, InsertBefore);
}

void AddStackedWidgetPageCommand::init(QStackedWidget *stackedWidget, InsertionMode mode)
{
    m_stackedWidget = stackedWidget;

    m_index = m_stackedWidget->currentIndex();
    if (mode == InsertAfter)
        m_index++;
    m_widget = new QDesignerWidget(formWindow(), m_stackedWidget);
    m_widget->setObjectName(tr("page"));
    formWindow()->ensureUniqueObjectName(m_widget);

    setDescription(tr("Insert Page"));

    QDesignerFormEditorInterface *core = formWindow()->core();
    core->metaDataBase()->add(m_widget);
}

void AddStackedWidgetPageCommand::redo()
{
    addPage();
    cheapUpdate();
}

void AddStackedWidgetPageCommand::undo()
{
    removePage();
    cheapUpdate();
}

// ---- TabOrderCommand ----
TabOrderCommand::TabOrderCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Change Tab order"), formWindow),
      m_widgetItem(0)
{
}

void TabOrderCommand::init(const QList<QWidget*> &newTabOrder)
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    Q_ASSERT(core);

    m_widgetItem = core->metaDataBase()->item(formWindow());
    Q_ASSERT(m_widgetItem);
    m_oldTabOrder = m_widgetItem->tabOrder();
    m_newTabOrder = newTabOrder;
}

void TabOrderCommand::redo()
{
    m_widgetItem->setTabOrder(m_newTabOrder);
}

void TabOrderCommand::undo()
{
    m_widgetItem->setTabOrder(m_oldTabOrder);
}

// ---- CreateMenuBarCommand ----
CreateMenuBarCommand::CreateMenuBarCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Create Menu Bar"), formWindow)
{
}

void CreateMenuBarCommand::init(QMainWindow *mainWindow)
{
    m_mainWindow = mainWindow;
    QDesignerFormEditorInterface *core = formWindow()->core();
    m_menuBar = qobject_cast<QMenuBar*>(core->widgetFactory()->createWidget("QMenuBar", m_mainWindow));
    core->widgetFactory()->initialize(m_menuBar);
}

void CreateMenuBarCommand::redo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    c->addWidget(m_menuBar);

    m_menuBar->setObjectName("menuBar");
    formWindow()->ensureUniqueObjectName(m_menuBar);
    core->metaDataBase()->add(m_menuBar);
    formWindow()->emitSelectionChanged();
    m_menuBar->setFocus();
}

void CreateMenuBarCommand::undo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    for (int i = 0; i < c->count(); ++i) {
        if (c->widget(i) == m_menuBar) {
            c->remove(i);
            break;
        }
    }

    core->metaDataBase()->remove(m_menuBar);
    formWindow()->emitSelectionChanged();
}

// ---- DeleteMenuBarCommand ----
DeleteMenuBarCommand::DeleteMenuBarCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Delete Menu Bar"), formWindow)
{
}

void DeleteMenuBarCommand::init(QMenuBar *menuBar)
{
    m_menuBar = menuBar;
    m_mainWindow = qobject_cast<QMainWindow*>(menuBar->parentWidget());
}

void DeleteMenuBarCommand::redo()
{
    if (m_mainWindow) {
        QDesignerContainerExtension *c;
        c = qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), m_mainWindow);
        Q_ASSERT(c != 0);
        for (int i=0; i<c->count(); ++i) {
            if (c->widget(i) == m_menuBar) {
                c->remove(i);
                break;
            }
        }
    }

    core()->metaDataBase()->remove(m_menuBar);
    m_menuBar->hide();
    m_menuBar->setParent(formWindow());
    formWindow()->emitSelectionChanged();
}

void DeleteMenuBarCommand::undo()
{
    if (m_mainWindow) {
        m_menuBar->setParent(m_mainWindow);
        QDesignerContainerExtension *c;
        c = qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), m_mainWindow);

        c->addWidget(m_menuBar);

        core()->metaDataBase()->add(m_menuBar);
        m_menuBar->show();
        formWindow()->emitSelectionChanged();
    }
}

// ---- CreateStatusBarCommand ----
CreateStatusBarCommand::CreateStatusBarCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Create Status Bar"), formWindow)
{
}

void CreateStatusBarCommand::init(QMainWindow *mainWindow)
{
    m_mainWindow = mainWindow;
    QDesignerFormEditorInterface *core = formWindow()->core();
    m_statusBar = qobject_cast<QStatusBar*>(core->widgetFactory()->createWidget("QStatusBar", m_mainWindow));
}

void CreateStatusBarCommand::redo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    c->addWidget(m_statusBar);

    m_statusBar->setObjectName("statusBar");
    formWindow()->ensureUniqueObjectName(m_statusBar);
    formWindow()->manageWidget(m_statusBar);
    formWindow()->emitSelectionChanged();
}

void CreateStatusBarCommand::undo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    for (int i = 0; i < c->count(); ++i) {
        if (c->widget(i) == m_statusBar) {
            c->remove(i);
            break;
        }
    }

    formWindow()->unmanageWidget(m_statusBar);
    formWindow()->emitSelectionChanged();
}

// ---- AddToolBarCommand ----
AddToolBarCommand::AddToolBarCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Add Tool Bar"), formWindow)
{
}

void AddToolBarCommand::init(QMainWindow *mainWindow)
{
    m_mainWindow = mainWindow;
    QDesignerFormEditorInterface *core = formWindow()->core();
    m_toolBar = qobject_cast<QToolBar*>(core->widgetFactory()->createWidget("QToolBar", m_mainWindow));
    m_toolBar->hide();
}

void AddToolBarCommand::redo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    core->metaDataBase()->add(m_toolBar);

    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    c->addWidget(m_toolBar);

    m_toolBar->setObjectName("toolBar");
    formWindow()->ensureUniqueObjectName(m_toolBar);
    formWindow()->emitSelectionChanged();
}

void AddToolBarCommand::undo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    core->metaDataBase()->remove(m_toolBar);
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    for (int i = 0; i < c->count(); ++i) {
        if (c->widget(i) == m_toolBar) {
            c->remove(i);
            break;
        }
    }
    formWindow()->emitSelectionChanged();
}

// ---- DockWidgetCommand:: ----
DockWidgetCommand::DockWidgetCommand(const QString &description, QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(description, formWindow)
{
}

DockWidgetCommand::~DockWidgetCommand()
{
}

void DockWidgetCommand::init(QDockWidget *dockWidget)
{
    m_dockWidget = dockWidget;
}

// ---- SetDockWidgetCommand ----
SetDockWidgetCommand::SetDockWidgetCommand(QDesignerFormWindowInterface *formWindow)
    : DockWidgetCommand(tr("Set Dock Window Widget"), formWindow)
{
}

void SetDockWidgetCommand::init(QDockWidget *dockWidget, QWidget *widget)
{
    DockWidgetCommand::init(dockWidget);
    m_widget = widget;
    m_oldWidget = dockWidget->widget();
}

void SetDockWidgetCommand::undo()
{
    m_dockWidget->setWidget(m_oldWidget);
}

void SetDockWidgetCommand::redo()
{
    formWindow()->unmanageWidget(m_widget);
    formWindow()->core()->metaDataBase()->add(m_widget);
    m_dockWidget->setWidget(m_widget);
}

// ---- AddDockWidgetCommand ----
AddDockWidgetCommand::AddDockWidgetCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Add Dock Window"), formWindow)
{
}

void AddDockWidgetCommand::init(QMainWindow *mainWindow, QDockWidget *dockWidget)
{
    m_mainWindow = mainWindow;
    m_dockWidget = dockWidget;
}

void AddDockWidgetCommand::init(QMainWindow *mainWindow)
{
    m_mainWindow = mainWindow;
    QDesignerFormEditorInterface *core = formWindow()->core();
    m_dockWidget = qobject_cast<QDockWidget*>(core->widgetFactory()->createWidget("QDockWidget", m_mainWindow));
}

void AddDockWidgetCommand::redo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    c->addWidget(m_dockWidget);

    m_dockWidget->setObjectName("dockWidget");
    formWindow()->ensureUniqueObjectName(m_dockWidget);
    formWindow()->manageWidget(m_dockWidget);
    formWindow()->emitSelectionChanged();
}

void AddDockWidgetCommand::undo()
{
    QDesignerFormEditorInterface *core = formWindow()->core();
    QDesignerContainerExtension *c;
    c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), m_mainWindow);
    for (int i = 0; i < c->count(); ++i) {
        if (c->widget(i) == m_dockWidget) {
            c->remove(i);
            break;
        }
    }

    formWindow()->unmanageWidget(m_dockWidget);
    formWindow()->emitSelectionChanged();
}

// ---- AdjustWidgetSizeCommand ----
AdjustWidgetSizeCommand::AdjustWidgetSizeCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(QString(), formWindow)
{
}

void AdjustWidgetSizeCommand::init(QWidget *widget)
{
    m_widget = widget;
    setDescription(tr("Adjust Size of '%1'").arg(widget->objectName()));
    m_geometry = m_widget->geometry();
}

void AdjustWidgetSizeCommand::redo()
{
    QWidget *widget = m_widget;
    if (Utils::isCentralWidget(formWindow(), widget) && formWindow()->parentWidget())
        widget = formWindow()->parentWidget();

    m_geometry = widget->geometry();
    QApplication::processEvents();
    widget->adjustSize();

    if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
        if (propertyEditor->object() == m_widget)
            propertyEditor->setPropertyValue(QLatin1String("geometry"), m_widget->geometry(), true);
    }
}

void AdjustWidgetSizeCommand::undo()
{
    if (formWindow()->mainContainer() == m_widget && formWindow()->parentWidget()) {
        formWindow()->parentWidget()->resize(m_geometry.width(), m_geometry.height());
    } else {
        m_widget->setGeometry(m_geometry);
    }

    if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
        if (propertyEditor->object() == m_widget)
            propertyEditor->setPropertyValue(QLatin1String("geometry"), m_widget->geometry(), true);
    }
}

// ---- ChangeLayoutItemGeometry ----
ChangeLayoutItemGeometry::ChangeLayoutItemGeometry(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Change Layout Item Geometry"), formWindow)
{
}

void ChangeLayoutItemGeometry::init(QWidget *widget, int row, int column, int rowspan, int colspan)
{
    m_widget = widget;
    Q_ASSERT(m_widget->parentWidget() != 0);

    QLayout *layout = LayoutInfo::managedLayout(formWindow()->core(), m_widget->parentWidget());
    Q_ASSERT(layout != 0);

    QGridLayout *grid = qobject_cast<QGridLayout*>(layout);
    Q_ASSERT(grid != 0);

    int itemIndex = grid->indexOf(m_widget);
    Q_ASSERT(itemIndex != -1);

    int current_row, current_column, current_rowspan, current_colspan;
    grid->getItemPosition(itemIndex, &current_row, &current_column, &current_rowspan, &current_colspan);

    m_oldInfo.setRect(current_column, current_row, current_colspan, current_rowspan);
    m_newInfo.setRect(column, row, colspan, rowspan);
}

void ChangeLayoutItemGeometry::changeItemPosition(const QRect &g)
{
    QLayout *layout = LayoutInfo::managedLayout(formWindow()->core(), m_widget->parentWidget());
    Q_ASSERT(layout != 0);

    QGridLayout *grid = qobject_cast<QGridLayout*>(layout);
    Q_ASSERT(grid != 0);

    int itemIndex = grid->indexOf(m_widget);
    Q_ASSERT(itemIndex != -1);

    QLayoutItem *item = grid->takeAt(itemIndex);
    delete item;

    add_to_grid_layout(grid, m_widget, g.top(), g.left(), g.height(), g.width());

    grid->invalidate();
    grid->activate();

    QLayoutSupport::createEmptyCells(grid);

    formWindow()->clearSelection(false);
    formWindow()->selectWidget(m_widget, true);
}

void ChangeLayoutItemGeometry::redo()
{
    changeItemPosition(m_newInfo);
}

void ChangeLayoutItemGeometry::undo()
{
    changeItemPosition(m_oldInfo);