Exemple #1
0
QString PlotCurve::saveCurveLayout()
{
  Plot *plot = static_cast<Plot *>(this->plot());
  Graph *g = static_cast<Graph *>(plot->parent());

  int index = g->curveIndex(static_cast<QwtPlotCurve *>(this));
  int style = g->curveType(index);
  QString s = "<Style>" + QString::number(style) + "</Style>\n";

  if (style == Graph::Spline)
    s += "<LineStyle>5</LineStyle>\n";
  else if (style == Graph::VerticalSteps)
    s += "<LineStyle>6</LineStyle>\n";
  else
    s += "<LineStyle>" + QString::number(this->style()) + "</LineStyle>\n";

  QPen pen = this->pen();
  if (pen.style() != Qt::NoPen){
    s += "<Pen>\n";
    s += "\t<Color>" + pen.color().name() + "</Color>\n";
    s += "\t<Style>" + QString::number(pen.style()-1) + "</Style>\n";
    s += "\t<Width>" + QString::number(pen.widthF()) + "</Width>\n";
    s += "</Pen>\n";
  }

  QBrush brush = this->brush();
  if (brush.style() != Qt::NoBrush){
    s += "<Brush>\n";
    s += "\t<Color>" + brush.color().name() + "</Color>\n";
    s += "\t<Style>" + QString::number(PatternBox::patternIndex(brush.style())) + "</Style>\n";
    s += "</Brush>\n";
  }

  const QwtSymbol symbol = this->symbol();
  if (symbol.style() != QwtSymbol::NoSymbol){
    s += "<Symbol>\n";
    s += "\t<Style>" + QString::number(SymbolBox::symbolIndex(symbol.style())) + "</Style>\n";
    s += "\t<Size>" + QString::number(symbol.size().width()) + "</Size>\n";

    s += "\t<SymbolPen>\n";
    s += "\t\t<Color>" + symbol.pen().color().name() + "</Color>\n";
    s += "\t\t<Width>" + QString::number(symbol.pen().widthF()) + "</Width>\n";
    s += "\t</SymbolPen>\n";

    brush = this->brush();
    if (brush.style() != Qt::NoBrush){
      s += "\t<SymbolBrush>\n";
      s += "\t\t<Color>" + symbol.brush().color().name() + "</Color>\n";
      s += "\t\t<Style>" + QString::number(PatternBox::patternIndex(symbol.brush().style())) + "</Style>\n";
      s += "\t</SymbolBrush>\n";
    }
    s += "</Symbol>\n";
  }
  s += "<xAxis>" + QString::number(xAxis()) + "</xAxis>\n";
  s += "<yAxis>" + QString::number(yAxis()) + "</yAxis>\n";
  s += "<Visible>" + QString::number(isVisible()) + "</Visible>\n";
  return s;
}
Exemple #2
0
/*!
  Draw symbols

  \param painter Painter
  \param symbol Curve symbol
  \param azimuthMap Maps azimuth values to values related to 0.0, M_2PI
  \param radialMap Maps radius values into painter coordinates.
  \param pole Position of the pole in painter coordinates
  \param from index of the first point to be painted
  \param to index of the last point to be painted.

  \sa setSymbol(), draw(), drawCurve()
*/
void QwtPolarCurve::drawSymbols( QPainter *painter, const QwtSymbol &symbol,
    const QwtScaleMap &azimuthMap, const QwtScaleMap &radialMap,
    const QPointF &pole, int from, int to ) const
{
    painter->setBrush( symbol.brush() );
    painter->setPen( symbol.pen() );

    const int chunkSize = 500;

    for ( int i = from; i <= to; i += chunkSize )
    {
        const int n = qMin( chunkSize, to - i + 1 );

        QPolygonF points;
        for ( int j = 0; j < n; j++ )
        {
            const QwtPointPolar point = sample( i + j );

            if ( !qwtInsidePole( radialMap, point.radius() ) )
            {
                const double r = radialMap.transform( point.radius() );
                const double a = azimuthMap.transform( point.azimuth() );

                points += qwtPolar2Pos( pole, r, a );
            }
            else
            {
                points += pole;
            }
        }

        if ( points.size() > 0 )
            symbol.drawSymbols( painter, points );
    }
}
Exemple #3
0
/*!
 \brief Draw symbols
 \param painter Painter
 \param symbol Curve symbol
 \param xMap x map
 \param yMap y map
 \param from index of the first point to be painted
 \param to index of the last point to be painted

 \sa setSymbol(), draw(), drawCurve()
 */
void PlotCurve::drawSymbols(QPainter *painter, const QwtSymbol &symbol, const QwtScaleMap &xMap,
    const QwtScaleMap &yMap, int from, int to) const
{
  painter->translate(d_x_offset,-d_y_offset);  // For waterfall plots (will be zero otherwise)
                                               // Don't really know why you'd want symbols on a waterfall plot, but just in case...

  if (d_skip_symbols < 2)
  {
    QwtPlotCurve::drawSymbols(painter, symbol, xMap, yMap, from, to);
    return;
  }

  painter->setBrush(symbol.brush());
  //QtiPlot has added method to QwtPainter: painter->setPen(QwtPainter::scaledPen(symbol.pen()));
  painter->setPen(symbol.pen());

  const QwtMetricsMap &metricsMap = QwtPainter::metricsMap();

  QRect rect;
  rect.setSize(metricsMap.screenToLayout(symbol.size()));

  for (int i = from; i <= to; i += d_skip_symbols)
  {
    const int xi = xMap.transform(x(i));
    const int yi = yMap.transform(y(i));

    rect.moveCenter(QPoint(xi, yi));
    symbol.draw(painter, rect);
  }
}
Exemple #4
0
/*!
 \brief Draw symbols
 \param painter Painter
 \param symbol Curve symbol
 \param xMap x map
 \param yMap y map
 \param from index of the first point to be painted
 \param to index of the last point to be painted

 \sa setSymbol(), draw(), drawCurve()
 */
void PlotCurve::drawSymbols(QPainter *painter, const QwtSymbol &symbol,
                            const QwtScaleMap &xMap, const QwtScaleMap &yMap,
                            int from, int to) const {
  if (d_skip_symbols < 2) {
    QwtPlotCurve::drawSymbols(painter, symbol, xMap, yMap, from, to);
    return;
  }

  painter->setBrush(symbol.brush());
  // QtiPlot has added method to QwtPainter:
  // painter->setPen(QwtPainter::scaledPen(symbol.pen()));
  painter->setPen(symbol.pen());

  const QwtMetricsMap &metricsMap = QwtPainter::metricsMap();

  QRect rect;
  rect.setSize(metricsMap.screenToLayout(symbol.size()));

  for (int i = from; i <= to; i += d_skip_symbols) {
    const int xi = xMap.transform(x(i));
    const int yi = yMap.transform(y(i));

    rect.moveCenter(QPoint(xi, yi));
    symbol.draw(painter, rect);
  }
}
// Hightlight the selected point
void CanvasPicker::showCursor( bool showIt )
{
    if ( !d_selectedCurve )
        return;

    QwtSymbol *symbol = const_cast<QwtSymbol *>( d_selectedCurve->symbol() );

    const QBrush brush = symbol->brush();
    if ( showIt )
        symbol->setBrush( symbol->brush().color().dark( 180 ) );

    QwtPlotDirectPainter directPainter;
    directPainter.drawSeries( d_selectedCurve, d_selectedPoint, d_selectedPoint );

    if ( showIt )
        symbol->setBrush( brush ); // reset brush
}
static inline void qwtDrawDiamondSymbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    const QSize size = symbol.size();

    QPen pen = symbol.pen();
    pen.setJoinStyle( Qt::MiterJoin );
    painter->setPen( pen );
    painter->setBrush( symbol.brush() );

    if ( QwtPainter::roundingAlignment( painter ) )
    {
        for ( int i = 0; i < numPoints; i++ )
        {
            const int x = qRound( points[i].x() );
            const int y = qRound( points[i].y() );

            const int x1 = x - size.width() / 2;
            const int y1 = y - size.height() / 2;
            const int x2 = x1 + size.width();
            const int y2 = y1 + size.height();

            QPolygonF polygon;
            polygon += QPointF( x, y1 );
            polygon += QPointF( x1, y );
            polygon += QPointF( x, y2 );
            polygon += QPointF( x2, y );

            QwtPainter::drawPolygon( painter, polygon );
        }
    }
    else
    {
        for ( int i = 0; i < numPoints; i++ )
        {
            const QPointF &pos = points[i];

            const double x1 = pos.x() - 0.5 * size.width();
            const double y1 = pos.y() - 0.5 * size.height();
            const double x2 = x1 + size.width();
            const double y2 = y1 + size.height();

            QPolygonF polygon;
            polygon += QPointF( pos.x(), y1 );
            polygon += QPointF( x2, pos.y() );
            polygon += QPointF( pos.x(), y2 );
            polygon += QPointF( x1, pos.y() );

            QwtPainter::drawPolygon( painter, polygon );
        }
    }
}
void PlotPropertiesGUI::symbolSizeValue(int value)
{
    QwtPlotCurve *plotCurve = internalCurves.value(currentCurve)->plotCurve;

    // Changes only the symbol width
    QwtSymbol symbol = plotCurve->symbol();
    symbol.setStyle((QwtSymbol::Style) (ui->curveSymbolCombo->currentIndex() - 1)); // starts in -1 

    if (symbol.brush().style() != Qt::NoBrush)
        symbol.setBrush(QBrush(plotCurve->pen().color()));

    symbol.setSize(value);
    plotCurve->setSymbol(symbol);
    plotter->replot();
}
/*!
  \brief Draw symbols
  \param painter Painter
  \param symbol Curve symbol
  \param xMap x map
  \param yMap y map
  \param from index of the first point to be painted
  \param to index of the last point to be painted
*/
void QwtCurve::drawSymbols(QPainter *painter, QwtSymbol &symbol,
    const QwtDiMap &xMap, const QwtDiMap &yMap, int from, int to)
{
    painter->setBrush(symbol.brush());
    painter->setPen(symbol.pen());

    QRect rect;
    rect.setSize(QwtPainter::metricsMap().screenToLayout(symbol.size()));

    for (int i = from; i <= to; i++)
    {
        const int xi = xMap.transform(x(i));
        const int yi = yMap.transform(y(i));

        rect.moveCenter(QPoint(xi, yi));
        symbol.draw(painter, rect);
    }
}
/*!
  \brief Draw symbols
  \param painter Painter
  \param symbol Curve symbol
  \param xMap x map
  \param yMap y map
  \param from index of the first point to be painted
  \param to index of the last point to be painted

  \sa setSymbol(), draw(), drawCurve()
*/
void QwtPlotCurve::drawSymbols(QPainter *painter, const QwtSymbol &symbol,
    const QwtScaleMap &xMap, const QwtScaleMap &yMap, 
    int from, int to) const
{
    painter->setBrush(symbol.brush());
    painter->setPen(QwtPainter::scaledPen(symbol.pen()));

    const QwtMetricsMap &metricsMap = QwtPainter::metricsMap();

    QRect rect;
    rect.setSize(metricsMap.screenToLayout(symbol.size()));

    if ( to > from && d_data->paintAttributes & PaintFiltered )
    {
        const QRect window = painter->window();
        if ( window.isEmpty() )
            return;

        PrivateData::PixelMatrix pixelMatrix(window);

        for (int i = from; i <= to; i++)
        {
            const QPoint pi( xMap.transform(x(i)),
                yMap.transform(y(i)) );

            if ( pixelMatrix.testPixel(pi) )
            {
                rect.moveCenter(pi);
                symbol.draw(painter, rect);
            }
        }
    }
    else
    {
        for (int i = from; i <= to; i++)
        {
            const int xi = xMap.transform(x(i));
            const int yi = yMap.transform(y(i));

            rect.moveCenter(QPoint(xi, yi));
            symbol.draw(painter, rect);
        }
    }
}
Exemple #10
0
static inline void qwtDrawRectSymbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    const QSize size = symbol.size();

    QPen pen = symbol.pen();
    pen.setJoinStyle( Qt::MiterJoin );
    painter->setPen( pen );
    painter->setBrush( symbol.brush() );
    painter->setRenderHint( QPainter::Antialiasing, false );

    if ( QwtPainter::roundingAlignment( painter ) )
    {
        const int sw = size.width();
        const int sh = size.height();
        const int sw2 = size.width() / 2;
        const int sh2 = size.height() / 2;

        for ( int i = 0; i < numPoints; i++ )
        {
            const int x = qRound( points[i].x() );
            const int y = qRound( points[i].y() );

            const QRect r( x - sw2, y - sh2, sw, sh );
            QwtPainter::drawRect( painter, r );
        }
    }
    else
    {
        const double sw = size.width();
        const double sh = size.height();
        const double sw2 = 0.5 * size.width();
        const double sh2 = 0.5 * size.height();

        for ( int i = 0; i < numPoints; i++ )
        {
            const double x = points[i].x();
            const double y = points[i].y();

            const QRectF r( x - sw2, y - sh2, sw, sh );
            QwtPainter::drawRect( painter, r );
        }
    }
}
Exemple #11
0
static inline void qwtDrawEllipseSymbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    painter->setBrush( symbol.brush() );
    painter->setPen( symbol.pen() );

    const QSize size = symbol.size();

    if ( QwtPainter::roundingAlignment( painter ) )
    {
        const int sw = size.width();
        const int sh = size.height();
        const int sw2 = size.width() / 2;
        const int sh2 = size.height() / 2;

        for ( int i = 0; i < numPoints; i++ )
        {
            const int x = qRound( points[i].x() );
            const int y = qRound( points[i].y() );

            const QRectF r( x - sw2, y - sh2, sw, sh );
            QwtPainter::drawEllipse( painter, r );
        }
    }
    else
    {
        const double sw = size.width();
        const double sh = size.height();
        const double sw2 = 0.5 * size.width();
        const double sh2 = 0.5 * size.height();

        for ( int i = 0; i < numPoints; i++ )
        {
            const double x = points[i].x();
            const double y = points[i].y();

            const QRectF r( x - sw2, y - sh2, sw, sh );
            QwtPainter::drawEllipse( painter, r );
        }
    }
}
Exemple #12
0
/*!
  Draw symbols

  \param painter Painter
  \param symbol Curve symbol
  \param azimuthMap Maps azimuth values to values related to 0.0, M_2PI
  \param radialMap Maps radius values into painter coordinates.
  \param pole Position of the pole in painter coordinates
  \param from index of the first point to be painted
  \param to index of the last point to be painted.
  \sa setSymbol(), draw(), drawCurve()
*/
void QwtPolarCurve::drawSymbols( QPainter *painter, const QwtSymbol &symbol,
                                 const QwtScaleMap &azimuthMap, const QwtScaleMap &radialMap,
                                 const QwtDoublePoint &pole, int from, int to ) const
{
  painter->setBrush( symbol.brush() );
  painter->setPen( symbol.pen() );

  QRect rect;
  rect.setSize( QwtPainter::metricsMap().screenToLayout( symbol.size() ) );

  for ( int i = from; i <= to; i++ )
  {
    const QwtPolarPoint point = sample( i );
    const double r = radialMap.xTransform( point.radius() );
    const double a = azimuthMap.xTransform( point.azimuth() );

    const QPoint pos = qwtPolar2Pos( pole, r, a ).toPoint();

    rect.moveCenter( pos );
    symbol.draw( painter, rect );
  }
}
/*! 
  Change color and fonts of a plot
  \sa apply()
*/
void QwtPlotPrintFilter::apply(QwtPlot *plot) const
{
    const bool doAutoReplot = plot->autoReplot();
    plot->setAutoReplot(false);

    delete d_data->cache;
    d_data->cache = new PrivateData::Cache;

    PrivateData::Cache &cache = *d_data->cache;

    if ( plot->titleLabel() )
    {
        QPalette palette = plot->titleLabel()->palette();
        cache.titleColor = palette.color(
            QPalette::Active, Palette::Text);
        palette.setColor(QPalette::Active, Palette::Text,
                         color(cache.titleColor, Title));
        plot->titleLabel()->setPalette(palette);

        cache.titleFont = plot->titleLabel()->font();
        plot->titleLabel()->setFont(font(cache.titleFont, Title));
    }
    if ( plot->legend() )
    {
#if QT_VERSION < 0x040000
        QValueList<QWidget *> list = plot->legend()->legendItems();
        for ( QValueListIterator<QWidget *> it = list.begin();
            it != list.end(); ++it )
#else
        QList<QWidget *> list = plot->legend()->legendItems();
        for ( QList<QWidget*>::iterator it = list.begin();
            it != list.end(); ++it )
#endif
        {
            QWidget *w = *it;

            cache.legendFonts.insert(w, w->font());
            w->setFont(font(w->font(), Legend));

            if ( w->inherits("QwtLegendItem") )
            {
                QwtLegendItem *label = (QwtLegendItem *)w;

                QwtSymbol symbol = label->symbol();
                QPen pen = symbol.pen();
                QBrush brush = symbol.brush();

                pen.setColor(color(pen.color(), CurveSymbol));
                brush.setColor(color(brush.color(), CurveSymbol));

                symbol.setPen(pen);
                symbol.setBrush(brush);
                label->setSymbol(symbol);

                pen = label->curvePen();
                pen.setColor(color(pen.color(), Curve));
                label->setCurvePen(pen);
            }
        }
    }
    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
    {
        QwtScaleWidget *scaleWidget = plot->axisWidget(axis);
        if ( scaleWidget )
        {
            cache.scaleColor[axis] = scaleWidget->palette().color(
                QPalette::Active, Palette::Foreground);
            QPalette palette = scaleWidget->palette();
            palette.setColor(QPalette::Active, Palette::Foreground,
                             color(cache.scaleColor[axis], AxisScale));
            scaleWidget->setPalette(palette);

            cache.scaleFont[axis] = scaleWidget->font();
            scaleWidget->setFont(font(cache.scaleFont[axis], AxisScale));

            cache.scaleTitle[axis] = scaleWidget->title();

            QwtText scaleTitle = scaleWidget->title();
            if ( scaleTitle.testPaintAttribute(QwtText::PaintUsingTextColor) )
            {
                cache.scaleTitleColor[axis] = scaleTitle.color();
                scaleTitle.setColor(
                    color(cache.scaleTitleColor[axis], AxisTitle));
            }

            if ( scaleTitle.testPaintAttribute(QwtText::PaintUsingTextFont) )
            {
                cache.scaleTitleFont[axis] = scaleTitle.font();
                scaleTitle.setFont(
                    font(cache.scaleTitleFont[axis], AxisTitle));
            }

            scaleWidget->setTitle(scaleTitle);

            int startDist, endDist;
            scaleWidget->getBorderDistHint(startDist, endDist);
            scaleWidget->setBorderDist(startDist, endDist);
        }
    }

    if ( hasBackgroundColor(plot) )
    {
        QPalette p = plot->palette();
        cache.widgetBackground = plot->palette().color(
            QPalette::Active, Palette::Background);
        p.setColor(QPalette::Active, Palette::Background, 
            color(cache.widgetBackground, WidgetBackground));
        plot->setPalette(p);
    }

    if ( hasBackgroundColor(plot->canvas()))
    {
        cache.canvasBackground = plot->canvasBackground();
        plot->setCanvasBackground(color(cache.canvasBackground, CanvasBackground));
    }

    const QwtPlotItemList& itmList = plot->itemList();
    for ( QwtPlotItemIterator it = itmList.begin();
        it != itmList.end(); ++it )
    {
        apply(*it);
    }

    plot->setAutoReplot(doAutoReplot);
}
/*! 
   Reset color and fonts of a plot
   \sa QwtPlotPrintFilter::apply
*/
void QwtPlotPrintFilter::reset(QwtPlot *plot) const
{
    if ( d_cache == 0 )
        return;

    QFont *font;
    QColor *color;

    if ( plot->d_lblTitle )
    {
        QPalette palette = plot->d_lblTitle->palette();
        palette.setColor(
            QPalette::Active, QColorGroup::Foreground, d_cache->titleColor);
        plot->d_lblTitle->setPalette(palette);

        plot->d_lblTitle->setFont(d_cache->titleFont);
    }

    if ( plot->d_legend )
    {
        QIntDictIterator<QWidget> it = plot->d_legend->itemIterator();
        for ( QWidget *w = it.toFirst(); w != 0; w = ++it)
        {
            const int key = it.currentKey();

            font = d_cache->legendFonts.find(key);
            if ( font )
                w->setFont(*font);

            if ( w->inherits("QwtLegendButton") )
            {
                QwtLegendButton *btn = (QwtLegendButton *)w;

                QwtSymbol symbol = btn->symbol();
                color = d_cache->curveSymbolPenColors.find(key);
                if ( color )
                {
                    QPen pen = symbol.pen();
                    pen.setColor(*color);
                    symbol.setPen(pen);
                }

                color = d_cache->curveSymbolBrushColors.find(key);
                if ( color )
                {
                    QBrush brush = symbol.brush();
                    brush.setColor(*color);
                    symbol.setBrush(brush);
                }
                btn->setSymbol(symbol);

                color = d_cache->curveColors.find(key);
                if ( color )
                {
                    QPen pen = btn->curvePen();
                    pen.setColor(*color);
                    btn->setCurvePen(pen);
                }
            }
        }
    }
    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
    {
        QwtScale *scale = plot->d_scale[axis];
        if ( scale )
        {
            QPalette palette = scale->palette();
            palette.setColor(QPalette::Active, QColorGroup::Foreground,
                             d_cache->scaleColor[axis]);
            scale->setPalette(palette);
            scale->setFont(d_cache->scaleFont[axis]);

            scale->setTitleColor(d_cache->scaleTitleColor[axis]);
            scale->setTitleFont(d_cache->scaleTitleFont[axis]);

            int startDist, endDist;
            scale->minBorderDist(startDist, endDist);
            scale->setBorderDist(startDist, endDist);
        }
    }

    plot->setBackgroundColor(d_cache->widgetBackground);
    plot->setCanvasBackground(d_cache->canvasBackground);

    QPen pen = plot->d_grid->majPen();
    pen.setColor(d_cache->gridColors[0]);
    plot->d_grid->setMajPen(pen);

    pen = plot->d_grid->minPen();
    pen.setColor(d_cache->gridColors[1]);
    plot->d_grid->setMinPen(pen);
    
    QIntDictIterator<QwtPlotCurve> itc(*plot->d_curves);
    for (QwtPlotCurve *c = itc.toFirst(); c != 0; c = ++itc )
    {
        const int key = itc.currentKey();

        QwtSymbol symbol = c->symbol();

        color = d_cache->curveSymbolPenColors.find(key);
        if ( color )
        {
            QPen pen = symbol.pen();
            pen.setColor(*color);
            symbol.setPen(pen);
        }

        color = d_cache->curveSymbolBrushColors.find(key);
        if ( color )
        {
            QBrush brush = symbol.brush();
            brush.setColor(*color);
            symbol.setBrush(brush);
        }
        c->setSymbol(symbol);

        color = d_cache->curveColors.find(key);
        if ( color )
        {
            QPen pen = c->pen();
            pen.setColor(*color);
            c->setPen(pen);
        }
    }

    QIntDictIterator<QwtPlotMarker> itm(*plot->d_markers);
    for (QwtPlotMarker *m = itm.toFirst(); m != 0; m = ++itm )
    {
        const int key = itm.currentKey();

        font = d_cache->markerFonts.find(key);
        if ( font )
            m->setFont(*font);

        color = d_cache->markerLabelColors.find(key);
        if ( color )
        {
            QPen pen = m->labelPen();
            pen.setColor(*color);
            m->setLabelPen(pen);
        }

        color = d_cache->markerLineColors.find(key);
        if ( color )
        {
            QPen pen = m->linePen();
            pen.setColor(*color);
            m->setLinePen(pen);
        }
        
        QwtSymbol symbol = m->symbol();

        color = d_cache->markerSymbolPenColors.find(key);
        if ( color )
        {
            QPen pen = symbol.pen();
            pen.setColor(*color);
            symbol.setPen(pen);
        }

        color = d_cache->markerSymbolBrushColors.find(key);
        if ( color )
        {
            QBrush brush = symbol.brush();
            brush.setColor(*color);
            symbol.setBrush(brush);
        }

        m->setSymbol(symbol);

    }

    QwtPlotPrintFilter *that = (QwtPlotPrintFilter *)this;
    delete that->d_cache;
    that->d_cache = 0;
}
/*! 
  Change color and fonts of a plot
  \sa QwtPlotPrintFilter::apply
*/
void QwtPlotPrintFilter::apply(QwtPlot *plot) const
{
    QwtPlotPrintFilter *that = (QwtPlotPrintFilter *)this;

    delete that->d_cache;
    that->d_cache = new QwtPlotPrintFilterCache;

    QwtPlotPrintFilterCache &cache = *that->d_cache;

    if ( plot->d_lblTitle )
    {
        QPalette palette = plot->d_lblTitle->palette();
        cache.titleColor = palette.color(
            QPalette::Active, QColorGroup::Foreground);
        palette.setColor(QPalette::Active, QColorGroup::Foreground,
                         color(cache.titleColor, Title));
        plot->d_lblTitle->setPalette(palette);

        cache.titleFont = plot->d_lblTitle->font();
        plot->d_lblTitle->setFont(font(cache.titleFont, Title));
    }
    if ( plot->d_legend )
    {
        QIntDictIterator<QWidget> it = plot->d_legend->itemIterator();
        for ( QWidget *w = it.toFirst(); w != 0; w = ++it)
        {
            const int key = it.currentKey();

            cache.legendFonts.insert(it.currentKey(), new QFont(w->font()));
            w->setFont(font(w->font(), Legend, key));

            if ( w->inherits("QwtLegendButton") )
            {
                QwtLegendButton *btn = (QwtLegendButton *)w;

                QwtSymbol symbol = btn->symbol();
                QPen pen = symbol.pen();
                QBrush brush = symbol.brush();

                pen.setColor(color(pen.color(), CurveSymbol, key));
                brush.setColor(color(brush.color(), CurveSymbol, key));

                symbol.setPen(pen);
                symbol.setBrush(brush);
                btn->setSymbol(symbol);

                pen = btn->curvePen();
                pen.setColor(color(pen.color(), Curve, key));
                btn->setCurvePen(pen);
            }
        }
    }
    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
    {
        QwtScale *scale = plot->d_scale[axis];
        if ( scale )
        {
            cache.scaleColor[axis] = scale->palette().color(
                QPalette::Active, QColorGroup::Foreground);
            QPalette palette = scale->palette();
            palette.setColor(QPalette::Active, QColorGroup::Foreground,
                             color(cache.scaleColor[axis], AxisScale, axis));
            scale->setPalette(palette);

            cache.scaleFont[axis] = scale->font();
            scale->setFont(font(cache.scaleFont[axis], AxisScale, axis));

            cache.scaleTitleColor[axis] = scale->titleColor();
            scale->setTitleColor(
                color(cache.scaleTitleColor[axis], AxisTitle, axis));

            cache.scaleTitleFont[axis] = scale->titleFont();
            scale->setTitleFont(
                font(cache.scaleTitleFont[axis], AxisTitle, axis));

            int startDist, endDist;
            scale->minBorderDist(startDist, endDist);
            scale->setBorderDist(startDist, endDist);
        }
    }

    cache.widgetBackground = plot->backgroundColor();
    plot->setBackgroundColor(color(cache.widgetBackground, WidgetBackground));

    cache.canvasBackground = plot->canvasBackground();
    plot->setCanvasBackground(color(cache.canvasBackground, CanvasBackground));

    QPen pen = plot->d_grid->majPen();
    cache.gridColors[0] = pen.color();
    pen.setColor(color(pen.color(), MajorGrid));
    plot->d_grid->setMajPen(pen);

    pen = plot->d_grid->minPen();
    cache.gridColors[1] = pen.color();
    pen.setColor(color(pen.color(), MinorGrid));
    plot->d_grid->setMinPen(pen);
    
    QIntDictIterator<QwtPlotCurve> itc(*plot->d_curves);
    for (QwtPlotCurve *c = itc.toFirst(); c != 0; c = ++itc )
    {
        const int key = itc.currentKey();

        QwtSymbol symbol = c->symbol();

        QPen pen = symbol.pen();
        cache.curveSymbolPenColors.insert(key, new QColor(pen.color()));
        pen.setColor(color(pen.color(), CurveSymbol, key));
        symbol.setPen(pen);

        QBrush brush = symbol.brush();
        cache.curveSymbolBrushColors.insert(key, new QColor(brush.color()));
        brush.setColor(color(brush.color(), CurveSymbol, key));
        symbol.setBrush(brush);

        c->setSymbol(symbol);

        pen = c->pen();
        cache.curveColors.insert(key, new QColor(pen.color()));
        pen.setColor(color(pen.color(), Curve, key));
        c->setPen(pen);
    }

    QIntDictIterator<QwtPlotMarker> itm(*plot->d_markers);
    for (QwtPlotMarker *m = itm.toFirst(); m != 0; m = ++itm )
    {
        const int key = itm.currentKey();

        cache.markerFonts.insert(key, new QFont(m->font()));
        m->setFont(font(m->font(), Marker, key));

        QPen pen = m->labelPen();
        cache.markerLabelColors.insert(key, new QColor(pen.color()));
        pen.setColor(color(pen.color(), Marker, key));
        m->setLabelPen(pen);
        
        pen = m->linePen();
        cache.markerLineColors.insert(key, new QColor(pen.color()));
        pen.setColor(color(pen.color(), Marker, key));
        m->setLinePen(pen);

        QwtSymbol symbol = m->symbol();

        pen = symbol.pen();
        cache.markerSymbolPenColors.insert(key, new QColor(pen.color()));
        pen.setColor(color(pen.color(), MarkerSymbol, key));
        symbol.setPen(pen);

        QBrush brush = symbol.brush();
        cache.markerSymbolBrushColors.insert(key, new QColor(brush.color()));
        brush.setColor(color(brush.color(), MarkerSymbol, key));
        symbol.setBrush(brush);

        m->setSymbol(symbol);
    }
}
//! == operator
bool QwtSymbol::operator==(const QwtSymbol &other) const
{
    return brush() == other.brush() && pen() == other.pen()
            && style() == other.style() && size() == other.size();
}
void QwtPlotPrintFilter::reset(QwtPlotItem *item) const
{
    if ( d_data->cache == 0 )
        return;

    const PrivateData::Cache &cache = *d_data->cache;

    switch(item->rtti())
    {
        case QwtPlotItem::Rtti_PlotGrid:
        {
            QwtPlotGrid *grid = (QwtPlotGrid *)item;

            QPen pen = grid->majPen();
            pen.setColor(cache.gridColors[0]);
            grid->setMajPen(pen);

            pen = grid->minPen();
            pen.setColor(cache.gridColors[1]);
            grid->setMinPen(pen);

            break;
        }
        case QwtPlotItem::Rtti_PlotCurve:
        {
            QwtPlotCurve *c = (QwtPlotCurve *)item;

            QwtSymbol symbol = c->symbol();

            if ( cache.curveSymbolPenColors.contains(c) )
            {
                symbol.setPen(cache.curveSymbolPenColors[c]);
            }

            if ( cache.curveSymbolBrushColors.contains(c) )
            {
                QBrush brush = symbol.brush();
                brush.setColor(cache.curveSymbolBrushColors[c]);
                symbol.setBrush(brush);
            }
            c->setSymbol(symbol);

            if ( cache.curveColors.contains(c) )
            {
                QPen pen = c->pen();
                pen.setColor(cache.curveColors[c]);
                c->setPen(pen);
            }

            break;
        }
        case QwtPlotItem::Rtti_PlotMarker:
        {
            QwtPlotMarker *m = (QwtPlotMarker *)item;

            if ( cache.markerFonts.contains(m) )
            {
                QwtText label = m->label();
                label.setFont(cache.markerFonts[m]);
                m->setLabel(label);
            }

            if ( cache.markerLabelColors.contains(m) )
            {
                QwtText label = m->label();
                label.setColor(cache.markerLabelColors[m]);
                m->setLabel(label);
            }

            if ( cache.markerLineColors.contains(m) )
            {
                QPen pen = m->linePen();
                pen.setColor(cache.markerLineColors[m]);
                m->setLinePen(pen);
            }
            
            QwtSymbol symbol = m->symbol();

            if ( cache.markerSymbolPenColors.contains(m) )
            {
                QPen pen = symbol.pen();
                pen.setColor(cache.markerSymbolPenColors[m]);
                symbol.setPen(pen);
            }

            if ( cache.markerSymbolBrushColors.contains(m) )
            {
                QBrush brush = symbol.brush();
                brush.setColor(cache.markerSymbolBrushColors[m]);
                symbol.setBrush(brush);
            }

            m->setSymbol(symbol);

            break;
        }
        default:
            break;
    }
}
/*! 
   Reset color and fonts of a plot
   \sa apply()
*/
void QwtPlotPrintFilter::reset(QwtPlot *plot) const
{
    if ( d_data->cache == 0 )
        return;

    const bool doAutoReplot = plot->autoReplot();
    plot->setAutoReplot(false);

    const PrivateData::Cache &cache = *d_data->cache;

    if ( plot->titleLabel() )
    {
        QwtTextLabel* title = plot->titleLabel();
        if ( title->text().testPaintAttribute(QwtText::PaintUsingTextFont) )
        {
            QwtText text = title->text();
            text.setColor(cache.titleColor);
            title->setText(text);
        }
        else
        {
            QPalette palette = title->palette();
            palette.setColor(
                QPalette::Active, Palette::Text, cache.titleColor);
            title->setPalette(palette);
        }

        if ( title->text().testPaintAttribute(QwtText::PaintUsingTextFont) )
        {
            QwtText text = title->text();
            text.setFont(cache.titleFont);
            title->setText(text);
        }
        else
        {
            title->setFont(cache.titleFont);
        }
    }

    if ( plot->legend() )
    {
#if QT_VERSION < 0x040000
        QValueList<QWidget *> list = plot->legend()->legendItems();
        for ( QValueListIterator<QWidget *> it = list.begin();
            it != list.end(); ++it )
#else
        QList<QWidget *> list = plot->legend()->legendItems();
        for ( QList<QWidget*>::iterator it = list.begin();
            it != list.end(); ++it )
#endif
        {
            QWidget *w = *it;

            if ( cache.legendFonts.contains(w) )
                w->setFont(cache.legendFonts[w]);

            if ( w->inherits("QwtLegendItem") )
            {
                QwtLegendItem *label = (QwtLegendItem *)w;
                const QwtPlotItem *plotItem = 
                    (const QwtPlotItem*)plot->legend()->find(label);

                QwtSymbol symbol = label->symbol();
                if ( cache.curveSymbolPenColors.contains(plotItem) )
                {
                    QPen pen = symbol.pen();
                    pen.setColor(cache.curveSymbolPenColors[plotItem]);
                    symbol.setPen(pen);
                }

                if ( cache.curveSymbolBrushColors.contains(plotItem) )
                {
                    QBrush brush = symbol.brush();
                    brush.setColor(cache.curveSymbolBrushColors[plotItem]);
                    symbol.setBrush(brush);
                }
                label->setSymbol(symbol);

                if ( cache.curveColors.contains(plotItem) )
                {
                    QPen pen = label->curvePen();
                    pen.setColor(cache.curveColors[plotItem]);
                    label->setCurvePen(pen);
                }
            }
        }
    }
    for ( int axis = 0; axis < QwtPlot::axisCnt; axis++ )
    {
        QwtScaleWidget *scaleWidget = plot->axisWidget(axis);
        if ( scaleWidget )
        {
            QPalette palette = scaleWidget->palette();
            palette.setColor(QPalette::Active, Palette::Foreground,
                             cache.scaleColor[axis]);
            scaleWidget->setPalette(palette);

            scaleWidget->setFont(cache.scaleFont[axis]);
            scaleWidget->setTitle(cache.scaleTitle[axis]);

            int startDist, endDist;
            scaleWidget->getBorderDistHint(startDist, endDist);
            scaleWidget->setBorderDist(startDist, endDist);
        }
    }

    if ( hasBackgroundColor(plot) )
    {
        QPalette p = plot->palette();
        p.setColor(QPalette::Active, Palette::Background, cache.widgetBackground);
        plot->setPalette(p);
    }

    if ( hasBackgroundColor(plot->canvas()) )
    {
        plot->setCanvasBackground(cache.canvasBackground);
    }
   
    const QwtPlotItemList& itmList = plot->itemList();
    for ( QwtPlotItemIterator it = itmList.begin();
        it != itmList.end(); ++it )
    {
        reset(*it);
    }

    delete d_data->cache;
    d_data->cache = 0;

    plot->setAutoReplot(doAutoReplot);
}
Exemple #19
0
QString PlotCurve::saveCurveLayout()
{
    QString s = "<Style>" + QString::number(d_plot_style) + "</Style>\n";
    if (d_plot_style == Graph::Spline)
        s += "<LineStyle>5</LineStyle>\n";
    else if (d_plot_style == Graph::VerticalSteps)
        s += "<LineStyle>6</LineStyle>\n";
    else
        s += "<LineStyle>" + QString::number(this->style()) + "</LineStyle>\n";

    QPen pen = this->pen();
    if (pen.style() != Qt::NoPen) {
        s += "<Pen>\n";
        s += "\t<Color>" + pen.color().name() + "</Color>\n";
        if (pen.color().alpha() != 255)
            s += "\t<Alpha>" + QString::number(pen.color().alpha()) + "</Alpha>\n";
        s += "\t<Style>" + QString::number(pen.style()-1) + "</Style>\n";
        s += "\t<Width>" + QString::number(pen.widthF()) + "</Width>\n";
        s += "</Pen>\n";
    }

    QBrush brush = this->brush();
    if (brush.style() != Qt::NoBrush) {
        s += "<Brush>\n";
        s += "\t<Color>" + brush.color().name() + "</Color>\n";
        if (brush.color().alpha() != 255)
            s += "\t<Alpha>" + QString::number(brush.color().alpha()) + "</Alpha>\n";
        s += "\t<Style>" + QString::number(PatternBox::patternIndex(brush.style())) + "</Style>\n";
        s += "</Brush>\n";
    }

    const QwtSymbol symbol = this->symbol();
    if (symbol.style() != QwtSymbol::NoSymbol) {
        s += "<Symbol>\n";
        s += "\t<Style>" + QString::number(SymbolBox::symbolIndex(symbol.style())) + "</Style>\n";
        s += "\t<Size>" + QString::number(symbol.size().width()) + "</Size>\n";

        s += "\t<SymbolPen>\n";
        s += "\t\t<Color>" + symbol.pen().color().name() + "</Color>\n";
        if (symbol.pen().color().alpha() != 255)
            s += "\t<Alpha>" + QString::number(symbol.pen().color().alpha()) + "</Alpha>\n";
        s += "\t\t<Width>" + QString::number(symbol.pen().widthF()) + "</Width>\n";
        s += "\t</SymbolPen>\n";

        brush = this->brush();
        if (brush.style() != Qt::NoBrush) {
            s += "\t<SymbolBrush>\n";
            s += "\t\t<Color>" + symbol.brush().color().name() + "</Color>\n";
            if (symbol.brush().color().alpha() != 255)
                s += "\t<Alpha>" + QString::number(symbol.brush().color().alpha()) + "</Alpha>\n";
            s += "\t\t<Style>" + QString::number(PatternBox::patternIndex(symbol.brush().style())) + "</Style>\n";
            s += "\t</SymbolBrush>\n";
        }
        s += "</Symbol>\n";
    }
    s += "<xAxis>" + QString::number(xAxis()) + "</xAxis>\n";
    s += "<yAxis>" + QString::number(yAxis()) + "</yAxis>\n";
    s += "<CurveType>" + QString::number(curveType()) + "</CurveType>\n";
    s += "<Visible>" + QString::number(isVisible()) + "</Visible>\n";
    return s;
}
void ObserverGraphic::setAttributes(const QStringList &attribs, const QStringList &curveTitles,
        /*const*/ QStringList &legKeys, /*const*/ QStringList &legAttribs)
{
    attribList = attribs;
    InternalCurve *interCurve = 0;
    QColor color;

    int attrSize = attribList.size();

    // Ignores the attribute of the x axis
    if (observerType == TObsGraphic)
        attrSize--;

    for (int i = 0; i < attrSize; i++)
    {
        interCurve = new InternalCurve(attribList.at(i), plotter);

        if (interCurve)
        {
            if (i < curveTitles.size())
                interCurve->plotCurve->setTitle(curveTitles.at(i));
            else
                interCurve->plotCurve->setTitle(QString("$curve %1").arg(i + 1));

            internalCurves->insert(attribList.at(i), interCurve);

            // Sets a random color for the created curve
            color = QColor::fromHsvF(hueValues[(int)(qrand() % HUE_COUNT)], 1, 1);
            interCurve->plotCurve->setPen(color);
			interCurve->plotCurve->setLegendAttribute(QwtPlotCurve::LegendShowLine);

            int width = 0, style = 0, symbol = 0, colorBar = 0, num = 0, size = 0, penstyle = 0;

            width = legKeys.indexOf(WIDTH);
            style = legKeys.indexOf(STYLE);
            symbol = legKeys.indexOf(SYMBOL);
			size = legKeys.indexOf(SIZE_);
			penstyle = legKeys.indexOf(PENSTYLE);
            colorBar = legKeys.indexOf(COLOR_BAR);

            if ((!legAttribs.isEmpty()) && (colorBar > -1))
            {
                QString aux;
                QStringList colorStrList;
                QPen pen;

                aux = legAttribs.at(colorBar).mid(0, legAttribs.at(colorBar).indexOf(COLOR_BAR_SEP));
                colorStrList = aux.split(COLORS_SEP, QString::SkipEmptyParts)
                    .first().split(ITEM_SEP).first().split(COMP_COLOR_SEP);

                // Retrieves the last colorBar value
                // colorStrList = aux.split(COLORS_SEP, QString::SkipEmptyParts)
                //      .last().split(ITEM_SEP).first().split(COMP_COLOR_SEP);

                // color
                color.setRed(colorStrList.at(0).toInt());
                color.setGreen(colorStrList.at(1).toInt());
                color.setBlue(colorStrList.at(2).toInt());

                // width
                num = legAttribs.at(width).toInt();
                pen = QPen(color);
                pen.setWidth((num > 0) ? num : 1);
                interCurve->plotCurve->setPen(pen);

				// pen
                num = legAttribs.at(penstyle).toInt();
				pen.setStyle((Qt::PenStyle) num);
                interCurve->plotCurve->setPen(pen);

                // style
                num = legAttribs.at(style).toInt();
                interCurve->plotCurve->setStyle((QwtPlotCurve::CurveStyle) num);

                // symbol
                num = legAttribs.at(symbol).toInt();
                QwtSymbol* qwtSymbol = new QwtSymbol;
                qwtSymbol->setStyle((QwtSymbol::Style) num);
                qwtSymbol->setPen(pen);

				if ((QwtSymbol::Style) num !=(QwtSymbol::Style) -1)
				{
					interCurve->plotCurve->setLegendAttribute(QwtPlotCurve::LegendShowSymbol);
				}

				//size
                num = legAttribs.at(size).toInt();
                qwtSymbol->setSize(num);


                if (qwtSymbol->brush().style() != Qt::NoBrush)
                    qwtSymbol->setBrush(pen.color());

                interCurve->plotCurve->setSymbol(qwtSymbol);

                for (int j = 0; j < LEGEND_ITENS; j++)
                {
                    legKeys.removeFirst();
                    legAttribs.removeFirst();
                }
            }
        }
        else
        {
            if (execModes != Quiet)
                qWarning("%s", qPrintable(TerraMEObserver::MEMORY_ALLOC_FAILED));
        }
    }
    plotter->setInternalCurves(internalCurves->values());
}
Exemple #21
0
static inline void qwtDrawHexagonSymbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    painter->setBrush( symbol.brush() );
    painter->setPen( symbol.pen() );

    const double cos30 = 0.866025; // cos(30°)
    const double dx = 0.5 * ( symbol.size().width() - cos30 );

    const double dy = 0.25 * symbol.size().height();

    QPolygonF hexaPolygon( 6 );
    QPointF *hexaPoints = hexaPolygon.data();

    const bool doAlign = QwtPainter::roundingAlignment( painter );

    for ( int i = 0; i < numPoints; i++ )
    {
        double x = points[i].x();
        double y = points[i].y();
        if ( doAlign )
        {
            x = qRound( x );
            y = qRound( y );
        }

        double x1 = x - dx;
        double y1 = y - 2 * dy;
        if ( doAlign )
        {
            x1 = qCeil( x1 );
            y1 = qCeil( y1 );
        }

        const double x2 = x1 + 1 * dx;
        const double x3 = x1 + 2 * dx;

        const double y2 = y1 + 1 * dy;
        const double y3 = y1 + 3 * dy;
        const double y4 = y1 + 4 * dy;

        hexaPoints[0].rx() = x2;
        hexaPoints[0].ry() = y1;

        hexaPoints[1].rx() = x3;
        hexaPoints[1].ry() = y2;

        hexaPoints[2].rx() = x3;
        hexaPoints[2].ry() = y3;

        hexaPoints[3].rx() = x2;
        hexaPoints[3].ry() = y4;

        hexaPoints[4].rx() = x1;
        hexaPoints[4].ry() = y3;

        hexaPoints[5].rx() = x1;
        hexaPoints[5].ry() = y2;

        QwtPainter::drawPolygon( painter, hexaPolygon );
    }
}
Exemple #22
0
static inline void qwtDrawStar2Symbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    QPen pen = symbol.pen();
    if ( pen.width() > 1 )
        pen.setCapStyle( Qt::FlatCap );
    pen.setJoinStyle( Qt::MiterJoin );
    painter->setPen( pen );

    painter->setBrush( symbol.brush() );

    const double cos30 = 0.866025; // cos(30°)

    const double dy = 0.25 * symbol.size().height();
    const double dx = 0.5 * symbol.size().width() * cos30 / 3.0;

    QPolygonF star( 12 );
    QPointF *starPoints = star.data();

    const bool doAlign = QwtPainter::roundingAlignment( painter );

    for ( int i = 0; i < numPoints; i++ )
    {
        double x = points[i].x();
        double y = points[i].y();
        if ( doAlign )
        {
            x = qRound( x );
            y = qRound( y );
        }

        double x1 = x - 3 * dx;
        double y1 = y - 2 * dy;
        if ( doAlign )
        {
            x1 = qRound( x - 3 * dx );
            y1 = qRound( y - 2 * dy );
        }

        const double x2 = x1 + 1 * dx;
        const double x3 = x1 + 2 * dx;
        const double x4 = x1 + 3 * dx;
        const double x5 = x1 + 4 * dx;
        const double x6 = x1 + 5 * dx;
        const double x7 = x1 + 6 * dx;

        const double y2 = y1 + 1 * dy;
        const double y3 = y1 + 2 * dy;
        const double y4 = y1 + 3 * dy;
        const double y5 = y1 + 4 * dy;

        starPoints[0].rx() = x4;
        starPoints[0].ry() = y1;

        starPoints[1].rx() = x5;
        starPoints[1].ry() = y2;

        starPoints[2].rx() = x7;
        starPoints[2].ry() = y2;

        starPoints[3].rx() = x6;
        starPoints[3].ry() = y3;

        starPoints[4].rx() = x7;
        starPoints[4].ry() = y4;

        starPoints[5].rx() = x5;
        starPoints[5].ry() = y4;

        starPoints[6].rx() = x4;
        starPoints[6].ry() = y5;

        starPoints[7].rx() = x3;
        starPoints[7].ry() = y4;

        starPoints[8].rx() = x1;
        starPoints[8].ry() = y4;

        starPoints[9].rx() = x2;
        starPoints[9].ry() = y3;

        starPoints[10].rx() = x1;
        starPoints[10].ry() = y2;

        starPoints[11].rx() = x3;
        starPoints[11].ry() = y2;

        QwtPainter::drawPolygon( painter, star );
    }
}
Exemple #23
0
static inline void qwtDrawTriangleSymbols(
    QPainter *painter, QwtTriangle::Type type,
    const QPointF *points, int numPoints,
    const QwtSymbol &symbol )
{
    const QSize size = symbol.size();

    QPen pen = symbol.pen();
    pen.setJoinStyle( Qt::MiterJoin );
    painter->setPen( pen );

    painter->setBrush( symbol.brush() );

    const bool doAlign = QwtPainter::roundingAlignment( painter );

    double sw2 = 0.5 * size.width();
    double sh2 = 0.5 * size.height();

    if ( doAlign )
    {
        sw2 = qFloor( sw2 );
        sh2 = qFloor( sh2 );
    }

    QPolygonF triangle( 3 );
    QPointF *trianglePoints = triangle.data();

    for ( int i = 0; i < numPoints; i++ )
    {
        const QPointF &pos = points[i];

        double x = pos.x();
        double y = pos.y();

        if ( doAlign )
        {
            x = qRound( x );
            y = qRound( y );
        }

        const double x1 = x - sw2;
        const double x2 = x1 + size.width();
        const double y1 = y - sh2;
        const double y2 = y1 + size.height();

        switch ( type )
        {
            case QwtTriangle::Left:
            {
                trianglePoints[0].rx() = x2;
                trianglePoints[0].ry() = y1;

                trianglePoints[1].rx() = x1;
                trianglePoints[1].ry() = y;

                trianglePoints[2].rx() = x2;
                trianglePoints[2].ry() = y2;

                break;
            }
            case QwtTriangle::Right:
            {
                trianglePoints[0].rx() = x1;
                trianglePoints[0].ry() = y1;

                trianglePoints[1].rx() = x2;
                trianglePoints[1].ry() = y;

                trianglePoints[2].rx() = x1;
                trianglePoints[2].ry() = y2;

                break;
            }
            case QwtTriangle::Up:
            {
                trianglePoints[0].rx() = x1;
                trianglePoints[0].ry() = y2;

                trianglePoints[1].rx() = x;
                trianglePoints[1].ry() = y1;

                trianglePoints[2].rx() = x2;
                trianglePoints[2].ry() = y2;

                break;
            }
            case QwtTriangle::Down:
            {
                trianglePoints[0].rx() = x1;
                trianglePoints[0].ry() = y1;

                trianglePoints[1].rx() = x;
                trianglePoints[1].ry() = y2;

                trianglePoints[2].rx() = x2;
                trianglePoints[2].ry() = y1;

                break;
            }
        }
        QwtPainter::drawPolygon( painter, triangle );
    }
}
void QwtPlotPrintFilter::apply(QwtPlotItem *item) const
{
    PrivateData::Cache &cache = *d_data->cache;

    switch(item->rtti())
    {
        case QwtPlotItem::Rtti_PlotGrid:
        {
            QwtPlotGrid *grid = (QwtPlotGrid *)item;

            QPen pen = grid->majPen();
            cache.gridColors[0] = pen.color();
            pen.setColor(color(pen.color(), MajorGrid));
            grid->setMajPen(pen);

            pen = grid->minPen();
            cache.gridColors[1] = pen.color();
            pen.setColor(color(pen.color(), MinorGrid));
            grid->setMinPen(pen);

            break;
        }
        case QwtPlotItem::Rtti_PlotCurve:
        {
            QwtPlotCurve *c = (QwtPlotCurve *)item;

            QwtSymbol symbol = c->symbol();

            QPen pen = symbol.pen();
            cache.curveSymbolPenColors.insert(c, pen.color());
            pen.setColor(color(pen.color(), CurveSymbol));
            symbol.setPen(pen);

            QBrush brush = symbol.brush();
            cache.curveSymbolBrushColors.insert(c, brush.color());
            brush.setColor(color(brush.color(), CurveSymbol));
            symbol.setBrush(brush);

            c->setSymbol(symbol);

            pen = c->pen();
            cache.curveColors.insert(c, pen.color());
            pen.setColor(color(pen.color(), Curve));
            c->setPen(pen);

            break;
        }
        case QwtPlotItem::Rtti_PlotMarker:
        {
            QwtPlotMarker *m = (QwtPlotMarker *)item;

            QwtText label = m->label();
            cache.markerFonts.insert(m, label.font());
            label.setFont(font(label.font(), Marker));
            cache.markerLabelColors.insert(m, label.color());
            label.setColor(color(label.color(), Marker));
            m->setLabel(label);
            
            QPen pen = m->linePen();
            cache.markerLineColors.insert(m, pen.color());
            pen.setColor(color(pen.color(), Marker));
            m->setLinePen(pen);

            QwtSymbol symbol = m->symbol();

            pen = symbol.pen();
            cache.markerSymbolPenColors.insert(m, pen.color());
            pen.setColor(color(pen.color(), MarkerSymbol));
            symbol.setPen(pen);

            QBrush brush = symbol.brush();
            cache.markerSymbolBrushColors.insert(m, brush.color());
            brush.setColor(color(brush.color(), MarkerSymbol));
            symbol.setBrush(brush);

            m->setSymbol(symbol);

            break;
        }
        default:    
            break;
    }
}
/*!
  \brief Copy constructor

  \param other Symbol
*/
QwtSymbol::QwtSymbol( const QwtSymbol &other )
{
    d_data = new PrivateData( other.style(), other.brush(),
                              other.pen(), other.size() );
};