qdesigner_command.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

}

// ---- InsertRowCommand ----
InsertRowCommand::InsertRowCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Insert Row"), formWindow)
{
}

void InsertRowCommand::init(QWidget *widget, int row)
{
    m_widget = widget;
    m_row = row;
}

void InsertRowCommand::redo()
{
}

void InsertRowCommand::undo()
{
}



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

ContainerWidgetCommand::~ContainerWidgetCommand()
{
}

QDesignerContainerExtension *ContainerWidgetCommand::containerExtension() const
{
    QExtensionManager *mgr = core()->extensionManager();
    return qt_extension<QDesignerContainerExtension*>(mgr, m_containerWidget);
}

void ContainerWidgetCommand::init(QWidget *containerWidget)
{
    m_containerWidget = containerWidget;

    if (QDesignerContainerExtension *c = containerExtension()) {
        m_index = c->currentIndex();
        m_widget = c->widget(m_index);
    }
}

void ContainerWidgetCommand::removePage()
{
    if (QDesignerContainerExtension *c = containerExtension()) {
        c->remove(m_index);

        m_widget->hide();
        m_widget->setParent(formWindow());
    }
}

void ContainerWidgetCommand::addPage()
{
    if (QDesignerContainerExtension *c = containerExtension()) {
        c->insertWidget(m_index, m_widget);

        m_widget->show();
        c->setCurrentIndex(m_index);
    }
}

// ---- DeleteContainerWidgetPageCommand ----
DeleteContainerWidgetPageCommand::DeleteContainerWidgetPageCommand(QDesignerFormWindowInterface *formWindow)
    : ContainerWidgetCommand(formWindow)
{
}

DeleteContainerWidgetPageCommand::~DeleteContainerWidgetPageCommand()
{
}

void DeleteContainerWidgetPageCommand::init(QWidget *containerWidget)
{
    ContainerWidgetCommand::init(containerWidget);
    setDescription(tr("Delete Page"));
}

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

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

// ---- AddContainerWidgetPageCommand ----
AddContainerWidgetPageCommand::AddContainerWidgetPageCommand(QDesignerFormWindowInterface *formWindow)
    : ContainerWidgetCommand(formWindow)
{
}

AddContainerWidgetPageCommand::~AddContainerWidgetPageCommand()
{
}

void AddContainerWidgetPageCommand::init(QWidget *containerWidget)
{
    init(containerWidget, InsertBefore);
}

void AddContainerWidgetPageCommand::init(QWidget *containerWidget, InsertionMode mode)
{
    m_containerWidget = containerWidget;

    if (QDesignerContainerExtension *c = containerExtension()) {
        m_index = c->currentIndex();
        if (mode == InsertAfter)
            m_index++;
        m_widget = new QDesignerWidget(formWindow(), m_containerWidget);
        m_widget->setObjectName(tr("page"));
        formWindow()->ensureUniqueObjectName(m_widget);

        setDescription(tr("Insert Page"));

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

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

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

// ---- ChangeTableContentsCommand ----
ChangeTableContentsCommand::ChangeTableContentsCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Change Table Contents"), formWindow),
        m_oldColumnCount(0),
        m_newColumnCount(0),
        m_oldRowCount(0),
        m_newRowCount(0)
{

}

void ChangeTableContentsCommand::init(QTableWidget *tableWidget, QTableWidget *fromTableWidget)
{
    m_tableWidget = tableWidget;

    m_oldItemsState.clear();
    m_newItemsState.clear();
    m_oldHorizontalHeaderState.clear();
    m_newHorizontalHeaderState.clear();
    m_oldVerticalHeaderState.clear();
    m_newVerticalHeaderState.clear();

    m_oldColumnCount = tableWidget->columnCount();
    m_oldRowCount = tableWidget->rowCount();
    m_newColumnCount = fromTableWidget->columnCount();
    m_newRowCount = fromTableWidget->rowCount();

    for (int col = 0; col < m_oldColumnCount; col++) {
        QTableWidgetItem *item = tableWidget->horizontalHeaderItem(col);
        if (item) {
            QString text = item->text();
            QIcon icon = item->icon();
            if (!text.isEmpty() || !icon.isNull()) {
                m_oldHorizontalHeaderState[col] =
                            qMakePair<QString, QIcon>(text, icon);
            }
        }
    }

    for (int row = 0; row < m_oldRowCount; row++) {
        QTableWidgetItem *item = tableWidget->verticalHeaderItem(row);
        if (item) {
            QString text = item->text();
            QIcon icon = item->icon();
            if (!text.isEmpty() || !icon.isNull()) {
                m_oldVerticalHeaderState[row] =
                            qMakePair<QString, QIcon>(text, icon);
            }
        }
    }

    for (int col = 0; col < m_oldColumnCount; col++) {
        for (int row = 0; row < m_oldRowCount; row++) {
            QTableWidgetItem *item = tableWidget->item(row, col);
            if (item) {
                QString text = item->text();
                QIcon icon = item->icon();
                if (!text.isEmpty() || !icon.isNull()) {
                    m_oldItemsState[qMakePair<int, int>(row, col)] =
                                qMakePair<QString, QIcon>(text, icon);
                }
            }
        }
    }


    for (int col = 0; col < m_newColumnCount; col++) {
        QTableWidgetItem *item = fromTableWidget->horizontalHeaderItem(col);
        if (item) {
            QString text = item->text();
            QIcon icon = item->icon();
            if (!text.isEmpty() || !icon.isNull()) {
                m_newHorizontalHeaderState[col] =
                            qMakePair<QString, QIcon>(text, icon);
            }
        }
    }

    for (int row = 0; row < m_newRowCount; row++) {
        QTableWidgetItem *item = fromTableWidget->verticalHeaderItem(row);
        if (item) {
            QString text = item->text();
            QIcon icon = item->icon();
            if (!text.isEmpty() || !icon.isNull()) {
                m_newVerticalHeaderState[row] =
                            qMakePair<QString, QIcon>(text, icon);
            }
        }
    }

    for (int col = 0; col < m_newColumnCount; col++) {
        for (int row = 0; row < m_newRowCount; row++) {
            QTableWidgetItem *item = fromTableWidget->item(row, col);
            if (item) {
                QString text = item->text();
                QIcon icon = item->icon();
                if (!text.isEmpty() || !icon.isNull()) {
                    m_newItemsState[qMakePair<int, int>(row, col)] =
                                qMakePair<QString, QIcon>(text, icon);
                }
            }
        }
    }
}

void ChangeTableContentsCommand::changeContents(QTableWidget *tableWidget,
        int rowCount, int columnCount,
        const QMap<int, QPair<QString, QIcon> > &horizontalHeaderState,
        const QMap<int, QPair<QString, QIcon> > &verticalHeaderState,
        const QMap<QPair<int, int>, QPair<QString, QIcon> > &itemsState) const
{
    tableWidget->clear();

    tableWidget->setColumnCount(columnCount);
    QMap<int, QPair<QString, QIcon> >::ConstIterator itColumn =
                horizontalHeaderState.constBegin();
    while (itColumn != horizontalHeaderState.constEnd()) {
        int column = itColumn.key();
        QString text = itColumn.value().first;
        QIcon icon = itColumn.value().second;
        QTableWidgetItem *item = new QTableWidgetItem;
        item->setText(text);
        item->setIcon(icon);
        tableWidget->setHorizontalHeaderItem(column, item);

        itColumn++;
    }

    tableWidget->setRowCount(rowCount);
    QMap<int, QPair<QString, QIcon> >::ConstIterator itRow =
                verticalHeaderState.constBegin();
    while (itRow != verticalHeaderState.constEnd()) {
        int row = itRow.key();
        QString text = itRow.value().first;
        QIcon icon = itRow.value().second;
        QTableWidgetItem *item = new QTableWidgetItem;
        item->setText(text);
        item->setIcon(icon);
        tableWidget->setVerticalHeaderItem(row, item);

        itRow++;
    }

    QMap<QPair<int, int>, QPair<QString, QIcon> >::ConstIterator itItem =
                itemsState.constBegin();
    while (itItem != itemsState.constEnd()) {
        int row = itItem.key().first;
        int column = itItem.key().second;
        QString text = itItem.value().first;
        QIcon icon = itItem.value().second;
        QTableWidgetItem *item = new QTableWidgetItem;
        item->setText(text);
        item->setIcon(icon);
        tableWidget->setItem(row, column, item);

        itItem++;
    }
}

void ChangeTableContentsCommand::redo()
{
    changeContents(m_tableWidget, m_newRowCount, m_newColumnCount,
                m_newHorizontalHeaderState, m_newVerticalHeaderState, m_newItemsState);
}

void ChangeTableContentsCommand::undo()
{
    changeContents(m_tableWidget, m_oldRowCount, m_oldColumnCount,
                m_oldHorizontalHeaderState, m_oldVerticalHeaderState, m_oldItemsState);
}

// ---- ChangeTreeContentsCommand ----
ChangeTreeContentsCommand::ChangeTreeContentsCommand(QDesignerFormWindowInterface *formWindow)
    : QDesignerFormWindowCommand(tr("Change Tree Contents"), formWindow),
        m_oldHeaderItemState(0),
        m_newHeaderItemState(0),
        m_oldColumnCount(0),
        m_newColumnCount(0)
{

}

ChangeTreeContentsCommand::~ChangeTreeContentsCommand()
{
    clearState(m_oldItemsState, m_oldHeaderItemState);
    clearState(m_newItemsState, m_newHeaderItemState);
}

void ChangeTreeContentsCommand::init(QTreeWidget *treeWidget, QTreeWidget *fromTreeWidget)
{
    m_treeWidget = treeWidget;
    m_oldColumnCount = treeWidget->columnCount();
    m_newColumnCount = fromTreeWidget->columnCount();

    initState(m_oldItemsState, m_oldHeaderItemState, treeWidget);
    initState(m_newItemsState, m_newHeaderItemState, fromTreeWidget);
}

void ChangeTreeContentsCommand::redo()
{
    changeContents(m_treeWidget, m_newColumnCount, m_newItemsState, m_newHeaderItemState);
}

void ChangeTreeContentsCommand::undo()
{
    changeContents(m_treeWidget, m_oldColumnCount, m_oldItemsState, m_oldHeaderItemState);
}

void ChangeTreeContentsCommand::initState(QList<QTreeWidgetItem *> &itemsState,
                QTreeWidgetItem *&headerItemState, QTreeWidget *fromTreeWidget) const
{
    clearState(itemsState, headerItemState);

    for (int i = 0; i < fromTreeWidget->topLevelItemCount(); i++)
        itemsState.append(fromTreeWidget->topLevelItem(i)->clone());

    headerItemState = fromTreeWidget->headerItem()->clone();
}

void ChangeTreeContentsCommand::changeContents(QTreeWidget *treeWidget, int columnCount,
        const QList<QTreeWidgetItem *> &itemsState, const QTreeWidgetItem *headerItemState) const
{
    treeWidget->clear();
    treeWidget->setColumnCount(columnCount);

    treeWidget->setHeaderItem(headerItemState->clone());

    if (!columnCount)
        return;

    foreach (QTreeWidgetItem *item, itemsState)
        treeWidget->addTopLevelItem(item->clone());
}

void ChangeTreeContentsCommand::clearState(QList<QTreeWidgetItem *> &itemsState,
            QTreeWidgetItem *&headerItemState) const
{
    QListIterator<QTreeWidgetItem *> it(itemsState);
    while (it.hasNext())
        delete it.next();
    itemsState.clear();
    if (headerItemState)
        delete headerItemState;
    headerItemState = 0;
}

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

}

void ChangeListContentsCommand::init(QListWidget *listWidget,
                const QList<QPair<QString, QIcon> > &items)
{
    m_listWidget = listWidget;
    m_comboBox = 0;

    m_newItemsState = items;
    m_oldItemsState.clear();

    for (int i = 0; i < listWidget->count(); i++) {
        QListWidgetItem *item = listWidget->item(i);
        QString text = item->text();
        QIcon icon = item->icon();

        m_oldItemsState.append(qMakePair<QString, QIcon>(text, icon));
    }
}

void ChangeListContentsCommand::init(QComboBox *comboBox,
                const QList<QPair<QString, QIcon> > &items)
{
    m_listWidget = 0;
    m_comboBox = comboBox;

    m_newItemsState = items;
    m_oldItemsState.clear();

    for (int i = 0; i < comboBox->count(); i++) {
        QString text = comboBox->itemText(i);
        QIcon icon = comboBox->itemIcon(i);

        m_oldItemsState.append(qMakePair<QString, QIcon>(text, icon));
    }
}

void ChangeListContentsCommand::redo()
{
    if (m_listWidget)
        changeContents(m_listWidget, m_newItemsState);
    else if (m_comboBox)
        changeContents(m_comboBox, m_newItemsState);
}

void ChangeListContentsCommand::undo()
{
    if (m_listWidget)
        changeContents(m_listWidget, m_oldItemsState);
    else if (m_comboBox)
        changeContents(m_comboBox, m_oldItemsState);
}

void ChangeListContentsCommand::changeContents(QListWidget *listWidget,
        const QList<QPair<QString, QIcon> > &itemsSt