C++ QRectF::setTop方法代码示例

static void blitTexture(QGLContext *ctx, GLuint texture, const QSize &viewport, const QSize &texSize, const QRect &targetRect, const QRect &sourceRect)
{
    glDisable(GL_DEPTH_TEST);
    glDisable(GL_SCISSOR_TEST);
    glDisable(GL_BLEND);
    glViewport(0, 0, viewport.width(), viewport.height());

    QGLShaderProgram *blitProgram =
        QGLEngineSharedShaders::shadersForContext(ctx)->blitProgram();
    blitProgram->bind();
    blitProgram->setUniformValue("imageTexture", 0 /*QT_IMAGE_TEXTURE_UNIT*/);

    // The shader manager's blit program does not multiply the
    // vertices by the pmv matrix, so we need to do the effect
    // of the orthographic projection here ourselves.
    QRectF r;
    qreal w = viewport.width();
    qreal h = viewport.height();
    r.setLeft((targetRect.left() / w) * 2.0f - 1.0f);
    if (targetRect.right() == (viewport.width() - 1))
        r.setRight(1.0f);
    else
        r.setRight((targetRect.right() / w) * 2.0f - 1.0f);
    r.setBottom((targetRect.top() / h) * 2.0f - 1.0f);
    if (targetRect.bottom() == (viewport.height() - 1))
        r.setTop(1.0f);
    else
        r.setTop((targetRect.bottom() / w) * 2.0f - 1.0f);

    drawTexture(r, texture, texSize, sourceRect);
}

void UIGraphicsZoomButton::updateAnimation()
{
    QRectF oldRect = geometry();
    QRectF newRect = oldRect;
    if (m_iDirection & UIGraphicsZoomDirection_Top)
        newRect.setTop(newRect.top() - m_iIndent);
    if (m_iDirection & UIGraphicsZoomDirection_Bottom)
        newRect.setBottom(newRect.bottom() + m_iIndent);
    if (m_iDirection & UIGraphicsZoomDirection_Left)
        newRect.setLeft(newRect.left() - m_iIndent);
    if (m_iDirection & UIGraphicsZoomDirection_Right)
        newRect.setRight(newRect.right() + m_iIndent);
    if (!(m_iDirection & UIGraphicsZoomDirection_Left) &&
        !(m_iDirection & UIGraphicsZoomDirection_Right))
    {
        newRect.setLeft(newRect.left() - m_iIndent / 2);
        newRect.setRight(newRect.right() + m_iIndent / 2);
    }
    if (!(m_iDirection & UIGraphicsZoomDirection_Top) &&
        !(m_iDirection & UIGraphicsZoomDirection_Bottom))
    {
        newRect.setTop(newRect.top() - m_iIndent / 2);
        newRect.setBottom(newRect.bottom() + m_iIndent / 2);
    }
    m_pForwardAnimation->setStartValue(oldRect);
    m_pForwardAnimation->setEndValue(newRect);
    m_pBackwardAnimation->setStartValue(newRect);
    m_pBackwardAnimation->setEndValue(oldRect);
}

QRectF addBBox(QRectF r1, QRectF r2)
{   
    // Find smallest QRectF containing given rectangles

    QRectF n;
    // Set left border
    if (r1.left() <= r2.left() )
	n.setLeft(r1.left() );
    else
	n.setLeft(r2.left() );
	
    // Set top border	    
    if (r1.top() <= r2.top() )
	n.setTop(r1.top() );
    else
	n.setTop(r2.top() );
	
    // Set right border
    if (r1.right() <= r2.right() )
	n.setRight(r2.right() );
    else
	n.setRight(r1.right() );
	
    // Set bottom 
    if (r1.bottom() <= r2.bottom() )
	n.setBottom(r2.bottom() );
    else
	n.setBottom(r1.bottom() );
    return n;
}

/*!
   \return Bounding rectangle of the data
   \sa QwtPlotRasterItem::interval()
*/
QRectF QwtPlotRasterItem::boundingRect() const
{
    const QwtInterval intervalX = interval( Qt::XAxis );
    const QwtInterval intervalY = interval( Qt::YAxis );

    if ( !intervalX.isValid() && !intervalY.isValid() )
        return QRectF(); // no bounding rect

    QRectF r;

    if ( intervalX.isValid() )
    {
        r.setLeft( intervalX.minValue() );
        r.setRight( intervalX.maxValue() );
    }
    else
    {
        r.setLeft(-0.5 * FLT_MAX);
        r.setWidth(FLT_MAX);
    }

    if ( intervalY.isValid() )
    {
        r.setTop( intervalY.minValue() );
        r.setBottom( intervalY.maxValue() );
    }
    else
    {
        r.setTop(-0.5 * FLT_MAX);
        r.setHeight(FLT_MAX);
    }

    return r.normalized();
}

void QOpacityTransferFunctionGraphicalView::setOpacityTransferFunction(const OpacityTransferFunction &opacityTransferFunction)
{
    scene()->clear();

    QList<double> keys = opacityTransferFunction.keys();
    QRectF rect;
    bool first = true;
    QOpacityTransferFunctionGraphicalViewNode *previousNode = 0;

    foreach (double x, keys)
    {
        double opacity = opacityTransferFunction.get(x);
        QOpacityTransferFunctionGraphicalViewNode *node = new QOpacityTransferFunctionGraphicalViewNode();
        node->setX(x);
        node->setY(opacity);
        node->setToolTip(QString("(%1, %2)").arg(x).arg(opacity));
        scene()->addItem(node);

        if (previousNode)
        {
            QOpacityTransferFunctionGraphicalViewLine *line = new QOpacityTransferFunctionGraphicalViewLine();
            line->setLeftNode(previousNode);
            line->setRightNode(node);
            previousNode->setRightLine(line);
            node->setLeftLine(line);
            scene()->addItem(line);
        }

        if (first)
        {
            first = false;
            rect.setLeft(x);
            rect.setRight(x);
            rect.setTop(opacity);
            rect.setBottom(opacity);
        }
        else
        {
            if (x < rect.left())
            {
                rect.setLeft(x);
            }
            if (x > rect.right())
            {
                rect.setRight(x);
            }
            if (opacity < rect.top())
            {
                rect.setTop(opacity);
            }
            if (opacity > rect.bottom())
            {
                rect.setBottom(opacity);
            }
        }

        previousNode = node;
    }

/*!
  Calculate the the rectangle for the color bar

  \param rect Bounding rectangle for all components of the scale
  \return Rectangle for the color bar
*/
QRectF QwtScaleWidget::colorBarRect( const QRectF& rect ) const
{
    QRectF cr = rect;

    if ( d_data->scaleDraw->orientation() == Qt::Horizontal )
    {
        cr.setLeft( cr.left() + d_data->borderDist[0] );
        cr.setWidth( cr.width() - d_data->borderDist[1] + 1 );
    }
    else
    {
        cr.setTop( cr.top() + d_data->borderDist[0] );
        cr.setHeight( cr.height() - d_data->borderDist[1] + 1 );
    }

    switch ( d_data->scaleDraw->alignment() )
    {
        case QwtScaleDraw::LeftScale:
        {
            cr.setLeft( cr.right() - d_data->margin
                - d_data->colorBar.width );
            cr.setWidth( d_data->colorBar.width );
            break;
        }

        case QwtScaleDraw::RightScale:
        {
            cr.setLeft( cr.left() + d_data->margin );
            cr.setWidth( d_data->colorBar.width );
            break;
        }

        case QwtScaleDraw::BottomScale:
        {
            cr.setTop( cr.top() + d_data->margin );
            cr.setHeight( d_data->colorBar.width );
            break;
        }

        case QwtScaleDraw::TopScale:
        {
            cr.setTop( cr.bottom() - d_data->margin
                - d_data->colorBar.width );
            cr.setHeight( d_data->colorBar.width );
            break;
        }
    }

    return cr;
}

void QGraphVizPIP::drawForeground(QPainter *painter, const QRectF &rect)
{
    if(!rect.intersects(m_ViewPortRect)) {
        return;
    }

    if(m_ViewPortRect.contains(scene()->sceneRect())) {
        return;
    }

    QColor color(Qt::red);

    QPen pen;
    pen.setColor(color);
    painter->setPen(pen);

    QBrush brush;
    color.setAlphaF(.1);
    brush.setColor(color);
    brush.setStyle(Qt::SolidPattern);
    painter->setBrush(brush);

    QRectF sceneRect = this->sceneRect().adjusted(-10,-10,20,20);

    QRectF viewPortRect;
    viewPortRect.setLeft(qMax(sceneRect.left(), m_ViewPortRect.left()));
    viewPortRect.setTop(qMax(sceneRect.top(), m_ViewPortRect.top()));
    viewPortRect.setRight(qMin(sceneRect.right(), m_ViewPortRect.right()));
    viewPortRect.setBottom(qMin(sceneRect.bottom(), m_ViewPortRect.bottom()));

    painter->drawRect(viewPortRect);
}

QRectF ODrawClient::getRect(const MSO::OfficeArtClientAnchor& clientAnchor)
{
    const MSO::XlsOfficeArtClientAnchor* anchor = clientAnchor.anon.get<MSO::XlsOfficeArtClientAnchor>();
    if (anchor) {
        QRectF r;
        qreal colWidth = columnWidth(m_sheet, anchor->colL);
        r.setLeft(offset(colWidth, anchor->dxL, 1024));
        if (anchor->colR == anchor->colL) {
            r.setRight(offset(colWidth, anchor->dxR, 1024));
        } else {
            qreal width = colWidth - r.left();
            for (int col = anchor->colL + 1; col < anchor->colR; ++col) {
                width += columnWidth(m_sheet, col);
            }
            width += offset(columnWidth(m_sheet, anchor->colR), anchor->dxR, 1024);
            r.setWidth(width);
        }
        qreal rowHgt = rowHeight(m_sheet, anchor->rwT);
        r.setTop(offset(rowHgt, anchor->dyT, 256));
        if (anchor->rwT == anchor->rwB) {
            r.setBottom(offset(rowHgt, anchor->dyB, 256));
        } else {
            qreal height = rowHgt - r.top();
            for (int row = anchor->rwT + 1; row < anchor->rwB; ++row) {
                height += rowHeight(m_sheet, row);
            }
            height += offset(rowHeight(m_sheet, anchor->rwB), anchor->dyB, 256);
            r.setHeight(height);
        }
        return r;
    } else {
        qDebug() << "Invalid client anchor!";
    }
    return QRectF();
}

void MiniMap::updateMap()
{
	QRectF maxRect;
	maxRect.setLeft( sceneRect().x() < visibleRect.x() ? sceneRect().x() : visibleRect.x() );
	maxRect.setTop( sceneRect().y() < visibleRect.y() ? sceneRect().y() : visibleRect.y() );
	maxRect.setRight( (sceneRect().x() + sceneRect().width()) > (visibleRect.x()+visibleRect.width())
			? (sceneRect().x() + sceneRect().width()) : (visibleRect.x()+visibleRect.width()));
	maxRect.setBottom( (sceneRect().y() + sceneRect().height()) > (visibleRect.y()+visibleRect.height())
			? (sceneRect().y() + sceneRect().height()) : (visibleRect.y()+visibleRect.height()));

	qreal xScale = (width() - 2*frameWidth() - 2*margin) / maxRect.width();
	qreal yScale = (height() - 2*frameWidth() - 2*margin) / maxRect.height();
	qreal scale = xScale < yScale ? xScale : yScale;

	qreal rectX = margin + (visibleRect.x() - maxRect.x())*scale;
	qreal rectY = margin + (visibleRect.y() - maxRect.y())*scale;

	if (xScale < yScale) rectY += (height() - 2*(frameWidth() + margin) - maxRect.height()*scale) / 2;
	else rectX += (width() - 2*(frameWidth() + margin) - maxRect.width()*scale) / 2;

	// Below we subtract 0.5 and take the ceiling. This rounds the number. We further subtract 1 in order to compensate
	// for the pen width of the drawn rectangle.
	drawnRect.setRect(rectX, rectY, ceil(visibleRect.width()*scale - 1.5), ceil(visibleRect.height()*scale - 1.5));

	setTransform(QTransform::fromScale(scale,scale).translate(margin, margin));

	viewport()->update();
}

void StaffScene::setBoundries()
{
    QRectF rec = sceneRect();
    rec.setTop(rec.top() - noteProperties::noteDiameter);
    rec.setBottom(rec.bottom() + noteProperties::noteDiameter);
    setSceneRect(rec);
}

void CallbackBoundingRects::mergeCoordinates (const QPointF &pos,
                                              QRectF &boundingRect)
{
  bool newGraphLeft   = m_isEmpty;
  bool newGraphTop    = m_isEmpty;
  bool newGraphRight  = m_isEmpty;
  bool newGraphBottom = m_isEmpty;

  if (!newGraphLeft) {
    newGraphLeft   = (pos.x() < boundingRect.left());
  }
  if (!newGraphTop) {
    newGraphTop    = (pos.y() < boundingRect.top());
  }
  if (!newGraphRight) {
    newGraphRight  = (boundingRect.right() < pos.x());
  }
  if (!newGraphBottom) {
    newGraphBottom = (boundingRect.bottom() < pos.y());
  }

  if (newGraphLeft) {
    boundingRect.setLeft (pos.x());
  }
  if (newGraphTop) {
    boundingRect.setTop (pos.y());
  }
  if (newGraphRight) {
    boundingRect.setRight (pos.x());
  }
  if (newGraphBottom) {
    boundingRect.setBottom (pos.y());
  }
}

void LineSegmentPlot::updateDataLimits()
{
    qDebug() << Q_FUNC_INFO;
    int xLen = xSize(), yLen = ySize(), endXLen = m_endX.size(), endYLen = m_endY.size();
    int N = qMin( qMin(xLen, yLen), qMin(endXLen, endYLen) );
    m_dataSize = N;

    qreal minX = Inf, maxX = -Inf, minY = Inf, maxY = -Inf;
    // Calculate the y limits
    RangeValues yrng = ArrayUtil::limits(yData());
    minY = yrng.min;
    maxY = yrng.max;

    yrng = ArrayUtil::limits(m_endY);
    minY = qMin(minY, yrng.min);
    maxY = qMax(maxY, yrng.max);

    RangeValues xrng = ArrayUtil::limits(xData());
    minX = xrng.min;
    maxX = xrng.max;

    xrng = ArrayUtil::limits(m_endX);
    minX = qMin(minX, xrng.min);
    maxX = qMax(maxX, xrng.max);

    QRectF newLim;
    newLim.setLeft(minX);
    newLim.setTop(minY);
    newLim.setRight(maxX);
    newLim.setBottom(maxY);
    setDataLimits(newLim);
}

QRectF QWidgetWindowPrivate::closestAcceptableGeometry(const QRectF &rect) const
{
    Q_Q(const QWidgetWindow);
    const QWidget *widget = q->widget();
    if (!widget->isWindow() || !widget->hasHeightForWidth())
        return QRect();
    const QSize oldSize = rect.size().toSize();
    const QSize newSize = QLayout::closestAcceptableSize(widget, oldSize);
    if (newSize == oldSize)
        return QRectF();
    const int dw = newSize.width() - oldSize.width();
    const int dh = newSize.height() - oldSize.height();
    QRectF result = rect;
    const QRectF currentGeometry(widget->geometry());
    const qreal topOffset = result.top() - currentGeometry.top();
    const qreal bottomOffset = result.bottom() - currentGeometry.bottom();
    if (qAbs(topOffset) > qAbs(bottomOffset))
        result.setTop(result.top() - dh); // top edge drag
    else
        result.setBottom(result.bottom() + dh); // bottom edge drag
    const qreal leftOffset = result.left() - currentGeometry.left();
    const qreal rightOffset = result.right() - currentGeometry.right();
    if (qAbs(leftOffset) > qAbs(rightOffset))
        result.setLeft(result.left() - dw); // left edge drag
    else
        result.setRight(result.right() + dw); // right edge drag
    return result;
}

  void HeightMapEditor::onViewChanged(const QRectF & rect)
  {
    if (!myGraph) return;
    if (myUi->renderView->scene()->children().count() > 50)
    {
      QList<QGraphicsItem *> items = myUi->renderView->scene()->items();
      for (QGraphicsItem * i : items)
        if (!i->isVisible())
          myUi->renderView->scene()->removeItem(i);
    }

    QRectF trect;

    trect.setLeft(rect.left() - fmod(rect.left(), myCellSize.width()));
    trect.setTop(rect.top() - fmod(rect.top(), myCellSize.height()));
    trect.setRight(rect.right() - fmod(rect.right(), myCellSize.width()));
    trect.setBottom(rect.bottom() - fmod(rect.bottom(), myCellSize.height()));

    for (double y = trect.top() - fmod(trect.top(), myCellSize.height());
         y < trect.bottom() + myCellSize.height() - fmod(trect.bottom(), myCellSize.height());
         y += myCellSize.height())
      for (double x = trect.left() - fmod(trect.left(), myCellSize.width());
           x < trect.right() + myCellSize.width() - fmod(trect.right(), myCellSize.width());
           x += myCellSize.width())
      {
        QRectF r(x,y,myCellSize.width(), myCellSize.height());
        generateRect(r);
      }
  }

/*!
  \return Bounding rectangle of all samples.
  For an empty series the rectangle is invalid.
*/
QRectF QwtPlotHistogram::boundingRect() const
{
    QRectF rect = d_series->boundingRect();
    if ( !rect.isValid() )
        return rect;

    if ( orientation() == Qt::Horizontal )
    {
        rect = QRectF( rect.y(), rect.x(),
            rect.height(), rect.width() );

        if ( rect.left() > d_data->baseline )
            rect.setLeft( d_data->baseline );
        else if ( rect.right() < d_data->baseline )
            rect.setRight( d_data->baseline );
    }
    else
    {
        if ( rect.bottom() < d_data->baseline )
            rect.setBottom( d_data->baseline );
        else if ( rect.top() > d_data->baseline )
            rect.setTop( d_data->baseline );
    }

    return rect;
}