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C++ QAbstractTextDocumentLayout::blockBoundingRect方法代码示例

本文整理汇总了C++中QAbstractTextDocumentLayout::blockBoundingRect方法的典型用法代码示例。如果您正苦于以下问题：C++ QAbstractTextDocumentLayout::blockBoundingRect方法的具体用法？C++ QAbstractTextDocumentLayout::blockBoundingRect怎么用？C++ QAbstractTextDocumentLayout::blockBoundingRect使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QAbstractTextDocumentLayout的用法示例。


在下文中一共展示了QAbstractTextDocumentLayout::blockBoundingRect方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: isBlockVisible

bool VMdEditor::isBlockVisible(const QTextBlock &p_block)
{
    if (!p_block.isValid() || !p_block.isVisible()) {
        return false;
    }

    QScrollBar *vbar = verticalScrollBar();
    if (!vbar || !vbar->isVisible()) {
        // No vertical scrollbar.
        return true;
    }

    int height = rect().height();
    QScrollBar *hbar = horizontalScrollBar();
    if (hbar && hbar->isVisible()) {
        height -= hbar->height();
    }

    QAbstractTextDocumentLayout *layout = document()->documentLayout();
    QRectF rect = layout->blockBoundingRect(p_block);
    int y = GETVISUALOFFSETY;
    int rectHeight = (int)rect.height();

    return (y >= 0 && y < height) || (y < 0 && y + rectHeight > 0);
}
开发者ID:vscanf，项目名称:vnote，代码行数:25，代码来源:vmdeditor.cpp

示例2: paintEvent

void NumberBar::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    QAbstractTextDocumentLayout *layout = edit->document()->documentLayout();
    QTextBlock block = edit->document()->begin();
    int vscrollValue = edit->verticalScrollBar()->value();
    for (int i=1; block.isValid(); i++, block=block.next())
    {
        const QRectF rect = layout->blockBoundingRect(block);
        if (block.isVisible()) {
            painter.drawText(-1, qRound(rect.top())-vscrollValue+1,
                    width(), fontMetrics().height(), Qt::AlignRight, QString::number(i));
        }
        else if (rect.top() > vscrollValue)
        {
            break;
        }
    }
}
开发者ID:kicktheken，项目名称:editor，代码行数:19，代码来源:notebox.cpp

示例3: paintEvent

void QLineNumberArea::paintEvent(QPaintEvent *)
{
	QAbstractTextDocumentLayout* layout = textEditor->document()->documentLayout();
	int contentsY = textEditor->verticalScrollBar()->value();
	qreal pageBottom = contentsY + textEditor->viewport()->height();
	const QFontMetrics fm = fontMetrics();
	const int ascent = fontMetrics().ascent() + 1;
	int lineCount = 1;

	QPainter p(this);

	//	textEditor->document()->

	QTextBlock block = textEditor->document()->begin();
	for(;block.isValid(); block = block.next(), lineCount++)
	{
		const QRectF boundingRect = layout->blockBoundingRect(block);

		QPointF position = boundingRect.topLeft();
		if(position.y() + boundingRect.height() < contentsY)
			continue;
		if(position.y() > pageBottom)
			break;


		const QString txt = QString::number(lineCount);
		QFont f = p.font();
		QFont q = p.font();
		const int i = boldLines.indexOf(lineCount);
		if(i!=-1)
		{
			//float r = ((float)i) / ((float)max_run_hist);
			f.setBold(true);
			p.setFont(f);
		}
		p.drawText(width() - fm.width(txt), qRound( position.y() ) - contentsY + ascent, txt);
		if(i!=-1)
		{
			p.setFont(q);
		}
	}
}
开发者ID:jasonimercer，项目名称:maglua，代码行数:42，代码来源:QLineNumberTextEdit.cpp

示例4: paintEvent

/*! \brief Dessine la barre.

  Cette méthode est appelée automatiquement dès que nécessaire.

  \param pEvent <Inutilisé> Évènement de dessin
*/
void BarreNombres::paintEvent(QPaintEvent */*pEvent*/) {
    QAbstractTextDocumentLayout *layout = m_edit->document()->documentLayout();
    int contentsY = m_edit->verticalScrollBar()->value();
    qreal pageBottom = contentsY + m_edit->viewport()->height();
    const QFontMetrics fm = fontMetrics();
    const int ascent = fontMetrics().ascent() + 1;
    int lineCount = 1;

    QPainter p(this);

    for (QTextBlock block = m_edit->document()->begin(); block.isValid(); block = block.next(), lineCount++) {
        const QRectF boundingRect = layout->blockBoundingRect(block);

        QPointF position = boundingRect.topLeft();
        if (position.y() + boundingRect.height() < contentsY)
            continue;
        if (position.y() > pageBottom)
            break;

        const QString txt = QString::number(lineCount);
        p.drawText(width() - fm.width(txt), qRound(position.y()) - contentsY + ascent, txt);
    }
}
开发者ID:Jokahero，项目名称:icare-algo，代码行数:29，代码来源:barrenombres.cpp

示例5: paintEvent

void NumberBar::paintEvent( QPaintEvent * )
{
    QAbstractTextDocumentLayout *layout = edit->document()->documentLayout();
    int contentsY = edit->verticalScrollBar()->value();
    qreal pageBottom = contentsY + edit->viewport()->height();
    const QFontMetrics fm = fontMetrics();
    const int ascent = fontMetrics().ascent() + 1; // height = ascent + descent + 1
    int lineCount = 1;

    QPainter p(this);

    markedRect = QRect();
   
    for ( QTextBlock block = edit->document()->begin();
	  block.isValid(); block = block.next(), ++lineCount ) 
    {

        const QRectF boundingRect = layout->blockBoundingRect( block );

        QPointF position = boundingRect.topLeft();
        if ( position.y() + boundingRect.height() < contentsY )
            continue;
        if ( position.y() > pageBottom )
            break;

        const QString txt = QString::number( lineCount );
        p.drawText( width() - fm.width(txt), qRound( position.y() ) - contentsY + ascent, txt );

        // marker
        if ( markedLine == lineCount )
        {
            p.drawPixmap( 1, qRound( position.y() ) - contentsY, markerIcon );
            markedRect = QRect( 1, qRound( position.y() ) - contentsY, markerIcon.width(), markerIcon.height() );
        }
    }
}
开发者ID:BurntBrunch，项目名称:rockbox-fft，代码行数:36，代码来源:numberedtextview.cpp

示例6: paintEvent

void QFCompleterTextEditNumberBar::paintEvent(QPaintEvent */*event*/) {
    QTextDocument* doc=editor->document();
    QAbstractTextDocumentLayout *layout = doc->documentLayout();
    qreal yPosition=editor->verticalScrollBar()->value();
    qreal vpHeight=editor->viewport()->height();

    QPainter p(this);
    p.setFont(linenumberFont);
    int linenumberWidth=QString::number(doc->blockCount()).size()*p.fontMetrics().width("0")+4;
    int markerheight=p.fontMetrics().ascent()+2;

    // set the width of the widget
    setFixedWidth(linenumberWidth+markerWidth+2);

    // first we draw the background
    p.setBrush(QBrush(linenumberColumnColor));
    p.setPen(QPen(linenumberColumnColor));
    p.drawRect(0,0,width(),vpHeight);
    p.setPen(QPen(markerColumnColor));
    p.setBrush(QBrush(markerColumnColor));
    p.drawRect(linenumberWidth,0,width()-linenumberWidth,vpHeight);

    // reset the rect of all markers
    QMutableMapIterator<int, itemData> i(markers);
    while (i.hasNext()) {
        i.next();
        itemData d=i.value();
        d.rect=QRect(0,0,0,0);
        i.setValue(d);
    }

    // now we draw the line numbers
    p.setPen(QPen(linenumberColor));
    for (QTextBlock it = doc->begin(); it != doc->end(); it = it.next()) {
        QRectF brect=layout->blockBoundingRect(it);
        qreal bottompos=brect.y()+brect.height();
        markerheight=brect.height()-8;
        // we end this loop if the current block lies below the viewport
        if (brect.y() > yPosition+ vpHeight)
            break;
        // if we are inside the viewport, we have to paint a line number for this line
        if (bottompos >= yPosition) {
            QString txt = QString::number(it.blockNumber()+1);
            p.drawText(1, brect.y()-yPosition, linenumberWidth-2, brect.height(), Qt::AlignRight|Qt::AlignVCenter, txt);
            if (markers.contains(it.blockNumber()+1)) {
                itemData d=markers[it.blockNumber()+1];
                QRect markerrect=QRect(linenumberWidth+2, brect.y()-yPosition+4, width()-linenumberWidth-4, markerheight);
                markers[it.blockNumber()+1].rect=markerrect;
                if (d.type==mtInfo) {
                    //p.drawImage(linenumberWidth+2, brect.y()-yPosition, QIcon(":/event_info.png"));
                    p.setBrush(infoMarkerColor);
                    QPen pe=p.pen();
                    pe.setColor(QColor("black"));
                    pe.setCosmetic(true);
                    pe.setWidth(1);
                    p.setPen(pe);
                    p.drawRect(markerrect);
                } else if (d.type==mtError) {
                    //p.drawImage(linenumberWidth+2, brect.y()-yPosition, QIcon(":/event_error.png"));
                    p.setBrush(errorMarkerColor);
                    QPen pe=p.pen();
                    pe.setColor(QColor("black"));
                    pe.setCosmetic(true);
                    pe.setWidth(1);
                    p.setPen(pe);
                    p.drawRect(markerrect);
                } else {
                    //p.drawImage(linenumberWidth+2, brect.y()-yPosition, QIcon(":/event_warning.png"));
                    p.setBrush(warningMarkerColor);
                    QPen pe=p.pen();
                    pe.setColor(QColor("black"));
                    pe.setCosmetic(true);
                    pe.setWidth(1);
                    p.setPen(pe);
                    p.drawRect(markerrect);
                }
            }
        }
    }

}
开发者ID:jkriege2，项目名称:QuickFit3，代码行数:81，代码来源:qfcompletertextedit.cpp

示例7: makeBlockVisible

void VMdEditor::makeBlockVisible(const QTextBlock &p_block)
{
    if (!p_block.isValid() || !p_block.isVisible()) {
        return;
    }

    QScrollBar *vbar = verticalScrollBar();
    if (!vbar || (vbar->minimum() == vbar->maximum())) {
        // No vertical scrollbar. No need to scroll.
        return;
    }

    int height = rect().height();
    QScrollBar *hbar = horizontalScrollBar();
    if (hbar && (hbar->minimum() != hbar->maximum())) {
        height -= hbar->height();
    }

    bool moved = false;

    QAbstractTextDocumentLayout *layout = document()->documentLayout();
    QRectF rect = layout->blockBoundingRect(p_block);
    int y = GETVISUALOFFSETY;
    int rectHeight = (int)rect.height();

    // Handle the case rectHeight >= height.
    if (rectHeight >= height) {
        if (y < 0) {
            // Need to scroll up.
            while (y + rectHeight < height && vbar->value() > vbar->minimum()) {
                moved = true;
                vbar->setValue(vbar->value() - vbar->singleStep());
                rect = layout->blockBoundingRect(p_block);
                rectHeight = (int)rect.height();
                y = GETVISUALOFFSETY;
            }
        } else if (y > 0) {
            // Need to scroll down.
            while (y > 0 && vbar->value() < vbar->maximum()) {
                moved = true;
                vbar->setValue(vbar->value() + vbar->singleStep());
                rect = layout->blockBoundingRect(p_block);
                rectHeight = (int)rect.height();
                y = GETVISUALOFFSETY;
            }

            if (y < 0) {
                // One step back.
                moved = true;
                vbar->setValue(vbar->value() - vbar->singleStep());
            }
        }

        if (moved) {
            qDebug() << "scroll to make huge block visible";
        }

        return;
    }

    while (y < 0 && vbar->value() > vbar->minimum()) {
        moved = true;
        vbar->setValue(vbar->value() - vbar->singleStep());
        rect = layout->blockBoundingRect(p_block);
        rectHeight = (int)rect.height();
        y = GETVISUALOFFSETY;
    }

    if (moved) {
        qDebug() << "scroll page down to make block visible";
        return;
    }

    while (y + rectHeight > height && vbar->value() < vbar->maximum()) {
        moved = true;
        vbar->setValue(vbar->value() + vbar->singleStep());
        rect = layout->blockBoundingRect(p_block);
        rectHeight = (int)rect.height();
        y = GETVISUALOFFSETY;
    }

    if (moved) {
        qDebug() << "scroll page up to make block visible";
    }
}
开发者ID:vscanf，项目名称:vnote，代码行数:85，代码来源:vmdeditor.cpp


注：本文中的QAbstractTextDocumentLayout::blockBoundingRect方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。