C++ (Cpp) QAbstractTextDocumentLayout::documentSize Beispiele

Beispiel #1

/*!
  Draw a text document into a rectangle

  \param painter Painter
  \param rect Traget rectangle
  \param flags Alignments/Text flags, see QPainter::drawText()
  \param text Text document
*/
void QwtPainter::drawSimpleRichText( QPainter *painter, const QRectF &rect,
    int flags, const QTextDocument &text )
{
    QTextDocument *txt = text.clone();

    painter->save();

    painter->setFont( txt->defaultFont() );
    qwtUnscaleFont( painter );

    txt->setDefaultFont( painter->font() );
    txt->setPageSize( QSizeF( rect.width(), QWIDGETSIZE_MAX ) );

    QAbstractTextDocumentLayout* layout = txt->documentLayout();

    const double height = layout->documentSize().height();
    double y = rect.y();
    if ( flags & Qt::AlignBottom )
        y += ( rect.height() - height );
    else if ( flags & Qt::AlignVCenter )
        y += ( rect.height() - height ) / 2;

    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor( QPalette::Text, painter->pen().color() );

    painter->translate( rect.x(), y );
    layout->draw( painter, context );

    painter->restore();
    delete txt;
}

Beispiel #2

Datei: qwt_painter.cpp Projekt: kuzavas/qtiplot

void QwtPainter::drawSimpleRichText(QPainter *painter, const QRect &rect,
    int flags, QTextDocument &text)
{
    const QRect scaledRect = d_metricsMap.layoutToDevice(rect, painter);
    text.setPageSize(QSize(scaledRect.width(), QWIDGETSIZE_MAX));

    QAbstractTextDocumentLayout* layout = text.documentLayout();

    const int height = qRound(layout->documentSize().height());
    int y = scaledRect.y();
    if (flags & Qt::AlignBottom)
        y += (scaledRect.height() - height);
    else if (flags & Qt::AlignVCenter)
        y += (scaledRect.height() - height)/2;

    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor(QPalette::Text, painter->pen().color());

    painter->save();

    painter->translate(scaledRect.x(), y);
    layout->draw(painter, context);

    painter->restore();
}

Beispiel #3

Datei: messageeditorwidgets.cpp Projekt: FlavioFalcao/qt5

QT_BEGIN_NAMESPACE

ExpandingTextEdit::ExpandingTextEdit(QWidget *parent)
    : QTextEdit(parent)
{
    setSizePolicy(QSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Expanding));

    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    QAbstractTextDocumentLayout *docLayout = document()->documentLayout();
    connect(docLayout, SIGNAL(documentSizeChanged(QSizeF)), SLOT(updateHeight(QSizeF)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(reallyEnsureCursorVisible()));

    m_minimumHeight = qRound(docLayout->documentSize().height()) + frameWidth() * 2;
}

Beispiel #4

Datei: qwt_painter.cpp Projekt: FabianFrancoRoldan/OpenPilot

/*!
  Draw a text document into a rectangle

  \param painter Painter
  \param rect Traget rectangle
  \param flags Alignments/Text flags, see QPainter::drawText()
  \param text Text document
*/
void QwtPainter::drawSimpleRichText( QPainter *painter, const QRectF &rect,
    int flags, const QTextDocument &text )
{
    QTextDocument *txt = text.clone();

    painter->save();

    QRectF unscaledRect = rect;

    if ( painter->font().pixelSize() < 0 )
    {
        const QSize res = qwtScreenResolution();

        const QPaintDevice *pd = painter->device();
        if ( pd->logicalDpiX() != res.width() ||
            pd->logicalDpiY() != res.height() )
        {
            QTransform transform;
            transform.scale( res.width() / double( pd->logicalDpiX() ),
                res.height() / double( pd->logicalDpiY() ));

            painter->setWorldTransform( transform, true );
            unscaledRect = transform.inverted().mapRect(rect);
        }
    }  

    txt->setDefaultFont( painter->font() );
    txt->setPageSize( QSizeF( unscaledRect.width(), QWIDGETSIZE_MAX ) );

    QAbstractTextDocumentLayout* layout = txt->documentLayout();

    const double height = layout->documentSize().height();
    double y = unscaledRect.y();
    if ( flags & Qt::AlignBottom )
        y += ( unscaledRect.height() - height );
    else if ( flags & Qt::AlignVCenter )
        y += ( unscaledRect.height() - height ) / 2;

    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor( QPalette::Text, painter->pen().color() );

    painter->translate( unscaledRect.x(), y );
    layout->draw( painter, context );

    painter->restore();
    delete txt;
}

Beispiel #5

Datei: PlaylistLargeItemDelegate.cpp Projekt: MechanisM/tomahawk

void
PlaylistLargeItemDelegate::drawRichText( QPainter* painter, const QRect& rect, int flags, QTextDocument& text ) const
{
    text.setPageSize( QSize( rect.width(), QWIDGETSIZE_MAX ) );
    QAbstractTextDocumentLayout* layout = text.documentLayout();

    const int height = qRound( layout->documentSize().height() );
    int y = rect.y();
    if ( flags & Qt::AlignBottom )
        y += ( rect.height() - height );
    else if ( flags & Qt::AlignVCenter )
        y += ( rect.height() - height ) / 2;

    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor( QPalette::Text, painter->pen().color() );

    painter->save();
    painter->translate( rect.x(), y );
    layout->draw( painter, context );
    painter->restore();
}