C++ QTextFrame::firstCursorPosition方法代码示例

/*! Append a new message to the current session and scroll to the end of the message protocol and
    returns true if the action was successful. The \a messageColor defines the color of the message
    box and should be provided as a full-color (no dimming required) color, as it is automatically
    adjusted for the border and background.
*/
bool QwcPrivateMessager::appendMessageToCurrentSession(QTextDocument *document, const QString message, const QColor messageColor)
{
    if (!document) { return false; }

    QTextCursor cursor = document->rootFrame()->lastCursorPosition();
    cursor.movePosition(QTextCursor::StartOfBlock);

    QTextFrameFormat frameFormat;
    frameFormat.setPadding(4);
    frameFormat.setBackground(messageColor.lighter(190));
    frameFormat.setMargin(0);
    frameFormat.setBorder(2);
    frameFormat.setBorderBrush(messageColor.lighter(150));
    frameFormat.setBorderStyle(QTextFrameFormat::BorderStyle_Outset);

    // Title
    QTextCharFormat backupCharFormat = cursor.charFormat();

    QTextCharFormat newCharFormat;
    newCharFormat.setFontPointSize(9);

    QTextBlockFormat headerFormat;
    headerFormat.setAlignment(Qt::AlignHCenter);
    cursor.insertBlock(headerFormat);
    cursor.setCharFormat(newCharFormat);
    cursor.insertText(QDateTime::currentDateTime().toString());

    QTextFrame *frame = cursor.insertFrame(frameFormat);
    cursor.setCharFormat(backupCharFormat);
    frame->firstCursorPosition().insertText(message);

    return true;
}

ClientTextEdit::ClientTextEdit(QWidget* parent) : QTextEdit(parent) {
    setReadOnly(true);
    setOverwriteMode(true);
    setUndoRedoEnabled(false);
    setDocumentTitle("mClient");
    setTextInteractionFlags(Qt::TextSelectableByMouse | Qt::LinksAccessibleByMouse);
    setTabChangesFocus(false);

    //_doc->setMaximumBlockCount(Config().scrollbackSize); // max number of lines?
    document()->setUndoRedoEnabled(false);
    QTextFrame* frame = document()->rootFrame();
    _cursor = frame->firstCursorPosition();

    // Default Colors
    _foregroundColor = Qt::lightGray;
    _backgroundColor = Qt::black;
    _blackColor = Qt::darkGray;
    _redColor = Qt::darkRed;
    _greenColor = Qt::darkGreen;
    _yellowColor = Qt::darkYellow;
    _blueColor = Qt::darkBlue;
    _magentaColor = Qt::darkMagenta;
    _cyanColor = Qt::darkCyan;
    _grayColor = Qt::lightGray;
    _darkGrayColor = Qt::gray;
    _brightRedColor = Qt::red;
    _brightGreenColor = Qt::green;
    _brightYellowColor = Qt::yellow;
    _brightBlueColor = Qt::blue;
    _brightMagentaColor = Qt::magenta;
    _brightCyanColor = Qt::cyan;
    _whiteColor = Qt::white;
    // Default Fonts
    _serverOutputFont = QFont("Monospace", 10);
    _inputLineFont = QFont("Monospace", 10); //QApplication::font();
    _serverOutputFont.setStyleHint(QFont::TypeWriter, QFont::PreferAntialias);

    QTextFrameFormat frameFormat = frame->frameFormat();
    frameFormat.setBackground(_backgroundColor);
    frameFormat.setForeground(_foregroundColor);
    frame->setFrameFormat(frameFormat);

    _format = _cursor.charFormat();
    setDefaultFormat(_format);
    _defaultFormat = _format;
    _cursor.setCharFormat(_format);

    QFontMetrics fm(_serverOutputFont);
    setTabStopWidth(fm.width(" ") * 8); // A tab is 8 spaces wide
    QScrollBar* scrollbar = verticalScrollBar();
    scrollbar->setSingleStep(fm.leading()+fm.height());

    connect(scrollbar, SIGNAL(sliderReleased()), 
                this, SLOT(scrollBarReleased()));

    previous = 0;
}

void KDReports::Frame::build( ReportBuilder& builder ) const
{
    // prepare the frame
    QTextFrameFormat format;
    if ( d->m_width ) {
        if ( d->m_widthUnit == Millimeters ) {
            format.setWidth( QTextLength( QTextLength::FixedLength, mmToPixels( d->m_width ) ) );
        } else {
            format.setWidth( QTextLength( QTextLength::PercentageLength, d->m_width ) );
        }
    }
    if ( d->m_height ) {
        if ( d->m_heightUnit == Millimeters ) {
            format.setHeight( QTextLength( QTextLength::FixedLength, mmToPixels( d->m_height ) ) );
        } else {
            format.setHeight( QTextLength( QTextLength::PercentageLength, d->m_height ) );
        }
    }

    format.setPadding( mmToPixels( padding() ) );
    format.setBorder( d->m_border );
    // TODO borderBrush like in AbstractTableElement
    format.setPosition( QTextFrameFormat::InFlow );

    QTextCursor& textDocCursor = builder.cursor();

    QTextFrame *frame = textDocCursor.insertFrame(format);

    QTextCursor contentsCursor = frame->firstCursorPosition();

    ReportBuilder contentsBuilder( builder.currentDocumentData(),
                                   contentsCursor, builder.report() );
    contentsBuilder.copyStateFrom( builder );

    foreach( const KDReports::ElementData& ed, d->m_elements )
    {
        switch ( ed.m_type ) {
        case KDReports::ElementData::Inline:
            contentsBuilder.addInlineElement( *ed.m_element );
            break;
        case KDReports::ElementData::Block:
            contentsBuilder.addBlockElement( *ed.m_element, ed.m_align );
            break;
        case KDReports::ElementData::Variable:
            contentsBuilder.addVariable( ed.m_variableType );
            break;
        }
    }

    textDocCursor.movePosition( QTextCursor::End );
}

void QQuickTextNode::addTextDocument(const QPointF &position, QTextDocument *textDocument,
                                  const QColor &textColor,
                                  QQuickText::TextStyle style, const QColor &styleColor,
                                  const QColor &anchorColor,
                                  const QColor &selectionColor, const QColor &selectedTextColor,
                                  int selectionStart, int selectionEnd)
{
    QQuickTextNodeEngine engine;
    engine.setTextColor(textColor);
    engine.setSelectedTextColor(selectedTextColor);
    engine.setSelectionColor(selectionColor);
    engine.setAnchorColor(anchorColor);
    engine.setPosition(position);

    QList<QTextFrame *> frames;
    frames.append(textDocument->rootFrame());
    while (!frames.isEmpty()) {
        QTextFrame *textFrame = frames.takeFirst();
        frames.append(textFrame->childFrames());

        engine.addFrameDecorations(textDocument, textFrame);

        if (textFrame->firstPosition() > textFrame->lastPosition()
         && textFrame->frameFormat().position() != QTextFrameFormat::InFlow) {
            const int pos = textFrame->firstPosition() - 1;
            ProtectedLayoutAccessor *a = static_cast<ProtectedLayoutAccessor *>(textDocument->documentLayout());
            QTextCharFormat format = a->formatAccessor(pos);
            QRectF rect = a->frameBoundingRect(textFrame);

            QTextBlock block = textFrame->firstCursorPosition().block();
            engine.setCurrentLine(block.layout()->lineForTextPosition(pos - block.position()));
            engine.addTextObject(rect.topLeft(), format, QQuickTextNodeEngine::Unselected, textDocument,
                                 pos, textFrame->frameFormat().position());
        } else {
            QTextFrame::iterator it = textFrame->begin();

            while (!it.atEnd()) {
                Q_ASSERT(!engine.currentLine().isValid());

                QTextBlock block = it.currentBlock();
                engine.addTextBlock(textDocument, block, position, textColor, anchorColor, selectionStart, selectionEnd);
                ++it;
            }
        }
    }

    engine.addToSceneGraph(this, style, styleColor);
}

void TestSections::initTest(const KSectionStyle *sectionStyle)
{
    // Mock shape of size 200x1000 pt.
    m_shape = new MockTextShape();
    Q_ASSERT(m_shape);
    m_shape->setSize(QSizeF(200, 1000));

    // Document layout.
    m_layout = m_shape->layout;
    Q_ASSERT(m_layout);

    // Document.
    m_doc = m_layout->document();
    Q_ASSERT(m_doc);
    m_doc->setDefaultFont(QFont("Sans Serif", 12, QFont::Normal, false));

    // Layout state (layout helper).
    m_textLayout = new Layout(m_layout);
    Q_ASSERT(m_textLayout);
    m_layout->setLayout(m_textLayout);

    // Style manager.
    m_styleManager = new KStyleManager();
    Q_ASSERT(m_styleManager);
    KTextDocument(m_doc).setStyleManager(m_styleManager);

    // Table style.
    m_defaultSectionStyle = new KSectionStyle();
    Q_ASSERT(m_defaultSectionStyle);
    m_defaultSectionStyle->setLeftMargin(0.0);
    m_defaultSectionStyle->setRightMargin(0.0);

    QString loremIpsum("Lorem ipsum dolor sit amet, XgXgectetuer adiXiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.");

    m_doc->rootFrame()->firstCursorPosition().insertText(loremIpsum);

    // Style.
    QTextFrameFormat sectionFormat;
    sectionStyle->applyStyle(sectionFormat);
    QTextFrame *section = m_doc->rootFrame()->firstCursorPosition().insertFrame(sectionFormat);

    section->firstCursorPosition().insertText(loremIpsum);
}

bool Converter::convertTable(const QDomElement &element)
{
    /**
     * Find out dimension of the table
     */

    int rowCounter = 0;
    int columnCounter = 0;

    QQueue<QDomNode> nodeQueue;
    enqueueNodeList(nodeQueue, element.childNodes());
    while (!nodeQueue.isEmpty())
    {
        QDomElement el = nodeQueue.dequeue().toElement();
        if (el.isNull())
            continue;

        if (el.tagName() == QLatin1String("table-row"))
        {
            rowCounter++;

            int counter = 0;
            QDomElement columnElement = el.firstChildElement();
            while (!columnElement.isNull())
            {
                if (columnElement.tagName() == QLatin1String("table-cell"))
                {
                    counter++;
                }
                columnElement = columnElement.nextSiblingElement();
            }

            columnCounter = qMax(columnCounter, counter);
        }
        else if (el.tagName() == QLatin1String("table-header-rows"))
        {
            enqueueNodeList(nodeQueue, el.childNodes());
        }
    }

    /**
     * Create table
     */
    QTextTable *table = m_Cursor->insertTable(rowCounter, columnCounter);
    firstTime=false;
    m_Cursor->movePosition(QTextCursor::End);

    /**
     * Fill table
     */
    nodeQueue.clear();
    enqueueNodeList(nodeQueue, element.childNodes());

    QTextTableFormat tableFormat;

    rowCounter = 0;
    while (!nodeQueue.isEmpty())
    {
        QDomElement el = nodeQueue.dequeue().toElement();
        if (el.isNull())
            continue;

        if (el.tagName() == QLatin1String("table-row"))
        {
            int columnCounter = 0;
            QDomElement columnElement = el.firstChildElement();
            while (!columnElement.isNull())
            {
                if (columnElement.tagName() == QLatin1String("table-cell"))
                {
                    const StyleFormatProperty property = m_StyleInformation->styleProperty(columnElement.attribute("style-name"));

                    QTextBlockFormat format;
                    property.applyTableCell(&format);

                    QDomElement paragraphElement = columnElement.firstChildElement();
                    while (!paragraphElement.isNull())
                    {
                        if (paragraphElement.tagName() == QLatin1String("p"))
                        {
                            QTextTableCell cell = table->cellAt(rowCounter, columnCounter);
                            // Insert a frame into the cell and work on that, so we can handle
                            // different parts of the cell having different block formatting
                            QTextCursor cellCursor = cell.lastCursorPosition();
                            QTextFrameFormat frameFormat;
                            //frameFormat.setMargin(1); // TODO: this shouldn't be hard coded
                            //todo: too much is created here - why?
                            QTextFrame *frame = cellCursor.insertFrame(frameFormat);
                            QTextCursor frameCursor = frame->firstCursorPosition();
                            frameCursor.setBlockFormat(format);

                            if (!convertParagraph(&frameCursor, paragraphElement, format))
                                return false;
                        }
                        else if (paragraphElement.tagName() == QLatin1String("list"))
                        {
                            QTextTableCell cell = table->cellAt(rowCounter, columnCounter);
                            // insert a list into the cell
                            QTextCursor cellCursor = cell.lastCursorPosition();
                            if (!convertList(&cellCursor, paragraphElement))
//.........这里部分代码省略.........