void Plot::printScale(QPainter *painter, int axisId, int startDist, int endDist,
int baseDist, const QRect &rect) const
{
if (!axisEnabled(axisId))
return;
const QwtScaleWidget *scaleWidget = axisWidget(axisId);
if ( scaleWidget->isColorBarEnabled()
&& scaleWidget->colorBarWidth() > 0)
{
const QwtMetricsMap map = QwtPainter::metricsMap();
const QRect r = map.layoutToScreen(rect);
scaleWidget->drawColorBar(painter, scaleWidget->colorBarRect(r));
const int off = scaleWidget->colorBarWidth() + scaleWidget->spacing();
if ( scaleWidget->scaleDraw()->orientation() == Qt::Horizontal )
baseDist += map.screenToLayoutY(off);
else
baseDist += map.screenToLayoutX(off);
}
QwtScaleDraw::Alignment align;
int x, y, w;
const int bw2 = scaleWidget->penWidth() / 2;
switch(axisId)
{
case yLeft:
{
x = rect.right() - baseDist + 1 - bw2;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case yRight:
{
x = rect.left() + baseDist;
if (scaleWidget->penWidth() % 2 == 0)
x += 1;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist + bw2;
align = QwtScaleDraw::RightScale;
break;
}
case xTop:
{
x = rect.left() + startDist;
y = rect.bottom() - baseDist + 1;
if (scaleWidget->penWidth() % 2 == 0)
y -= bw2;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case xBottom:
{
x = rect.left() + startDist;
y = rect.top() + baseDist;
if (scaleWidget->penWidth() % 2 == 1)
y += bw2;
w = rect.width() - startDist - endDist + bw2;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
scaleWidget->drawTitle(painter, align, rect);
painter->save();
painter->setFont(scaleWidget->font());
QPen pen = painter->pen();
pen.setWidth(scaleWidget->penWidth());
painter->setPen(pen);
QwtScaleDraw *sd = (QwtScaleDraw *)scaleWidget->scaleDraw();
const QPoint sdPos = sd->pos();
const int sdLength = sd->length();
sd->move(x, y);
sd->setLength(w);
#if QT_VERSION < 0x040000
sd->draw(painter, scaleWidget->palette().active());
#else
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup(QPalette::Active);
sd->draw(painter, palette);
#endif
// reset previous values
sd->move(sdPos);
sd->setLength(sdLength);
painter->restore();
}
void QwtPlot::printLegend(QPainter *painter, const QRect &rect) const
{
if ( !legend() || legend()->isEmpty() )
return;
QLayout *l = legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits("QwtDynGridLayout") )
return;
QwtDynGridLayout *legendLayout = (QwtDynGridLayout *)l;
uint numCols = legendLayout->columnsForWidth(rect.width());
#if QT_VERSION < 0x040000
QValueList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#else
QList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#endif
int index = 0;
#if QT_VERSION < 0x040000
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator) {
#else
for ( int i = 0; i < legendLayout->count(); i++ ) {
QLayoutItem *item = legendLayout->itemAt(i);
#endif
QWidget *w = item->widget();
if ( w ) {
painter->save();
painter->setClipping(true);
QwtPainter::setClipRect(painter, itemRects[index]);
printLegendItem(painter, w, itemRects[index]);
index++;
painter->restore();
}
}
}
/*!
Print the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPlot::printLegendItem(QPainter *painter,
const QWidget *w, const QRect &rect) const
{
if ( w->inherits("QwtLegendItem") ) {
QwtLegendItem *item = (QwtLegendItem *)w;
painter->setFont(item->font());
item->drawItem(painter, rect);
}
}
/*!
\brief Paint a scale into a given rectangle.
Paint the scale into a given rectangle.
\param painter Painter
\param axisId Axis
\param startDist Start border distance
\param endDist End border distance
\param baseDist Base distance
\param rect Bounding rectangle
*/
void QwtPlot::printScale(QPainter *painter,
int axisId, int startDist, int endDist, int baseDist,
const QRect &rect) const
{
if (!axisEnabled(axisId))
return;
const QwtScaleWidget *scaleWidget = axisWidget(axisId);
if ( scaleWidget->isColorBarEnabled()
&& scaleWidget->colorBarWidth() > 0) {
const QwtMetricsMap map = QwtPainter::metricsMap();
QRect r = map.layoutToScreen(rect);
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
scaleWidget->drawColorBar(painter, scaleWidget->colorBarRect(r));
const int off = scaleWidget->colorBarWidth() + scaleWidget->spacing();
if ( scaleWidget->scaleDraw()->orientation() == Qt::Horizontal )
baseDist += map.screenToLayoutY(off);
else
baseDist += map.screenToLayoutX(off);
}
QwtScaleDraw::Alignment align;
int x, y, w;
switch(axisId) {
case yLeft: {
x = rect.right() - baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case yRight: {
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::RightScale;
break;
}
case xTop: {
x = rect.left() + startDist;
y = rect.bottom() - baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case xBottom: {
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
scaleWidget->drawTitle(painter, align, rect);
painter->save();
painter->setFont(scaleWidget->font());
QPen pen = painter->pen();
pen.setWidth(scaleWidget->penWidth());
painter->setPen(pen);
QwtScaleDraw *sd = (QwtScaleDraw *)scaleWidget->scaleDraw();
const QPoint sdPos = sd->pos();
const int sdLength = sd->length();
sd->move(x, y);
sd->setLength(w);
#if QT_VERSION < 0x040000
sd->draw(painter, scaleWidget->palette().active());
#else
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup(QPalette::Active);
sd->draw(painter, palette);
#endif
// reset previous values
sd->move(sdPos);
sd->setLength(sdLength);
painter->restore();
}
/*!
Print the canvas into a given rectangle.
\param painter Painter
\param map Maps mapping between plot and paint device coordinates
\param boundingRect Bounding rectangle
\param canvasRect Canvas rectangle
\param pfilter Print filter
\sa QwtPlotPrintFilter
*/
void QwtPlot::printCanvas(QPainter *painter,
const QRect &boundingRect, const QRect &canvasRect,
const QwtScaleMap map[axisCnt], const QwtPlotPrintFilter &pfilter) const
{
if ( pfilter.options() & QwtPlotPrintFilter::PrintBackground ) {
QBrush bgBrush;
#if QT_VERSION >= 0x040000
bgBrush = canvas()->palette().brush(backgroundRole());
#else
QColorGroup::ColorRole role =
QPalette::backgroundRoleFromMode( backgroundMode() );
bgBrush = canvas()->colorGroup().brush( role );
#endif
QRect r = boundingRect;
if ( !(pfilter.options() & QwtPlotPrintFilter::PrintFrameWithScales) ) {
r = canvasRect;
#if QT_VERSION >= 0x040000
// Unfortunately the paint engines do no always the same
const QPaintEngine *pe = painter->paintEngine();
if ( pe ) {
switch(painter->paintEngine()->type() ) {
case QPaintEngine::Raster:
case QPaintEngine::X11:
break;
default:
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
break;
}
}
#else
if ( painter->device()->isExtDev() ) {
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
}
#endif
}
QwtPainter::fillRect(painter, r, bgBrush);
}
if ( pfilter.options() & QwtPlotPrintFilter::PrintFrameWithScales ) {
painter->save();
painter->setPen(QPen(Qt::black));
painter->setBrush(QBrush(Qt::NoBrush));
QwtPainter::drawRect(painter, boundingRect);
painter->restore();
}
painter->setClipping(true);
QwtPainter::setClipRect(painter, canvasRect);
drawItems(painter, canvasRect, map, pfilter);
}
/*!
\brief Draw the scale
*/
void QwtPlotScaleItem::draw( QPainter *painter,
const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QRectF &canvasRect ) const
{
QwtScaleDraw *sd = d_data->scaleDraw;
if ( d_data->scaleDivFromAxis )
{
const QwtInterval interval =
d_data->scaleInterval( canvasRect, xMap, yMap );
if ( interval != sd->scaleDiv().interval() )
{
QwtScaleDiv scaleDiv = sd->scaleDiv();
scaleDiv.setInterval( interval );
sd->setScaleDiv( scaleDiv );
}
}
QPen pen = painter->pen();
pen.setStyle( Qt::SolidLine );
painter->setPen( pen );
if ( sd->orientation() == Qt::Horizontal )
{
double y;
if ( d_data->borderDistance >= 0 )
{
if ( sd->alignment() == QwtScaleDraw::BottomScale )
y = canvasRect.top() + d_data->borderDistance;
else
{
y = canvasRect.bottom() - d_data->borderDistance;
}
}
else
{
y = yMap.transform( d_data->position );
}
if ( y < canvasRect.top() || y > canvasRect.bottom() )
return;
sd->move( canvasRect.left(), y );
sd->setLength( canvasRect.width() - 1 );
QwtTransform *transform = NULL;
if ( xMap.transformation() )
transform = xMap.transformation()->copy();
sd->setTransformation( transform );
}
else // == Qt::Vertical
{
double x;
if ( d_data->borderDistance >= 0 )
{
if ( sd->alignment() == QwtScaleDraw::RightScale )
x = canvasRect.left() + d_data->borderDistance;
else
{
x = canvasRect.right() - d_data->borderDistance;
}
}
else
{
x = xMap.transform( d_data->position );
}
if ( x < canvasRect.left() || x > canvasRect.right() )
return;
sd->move( x, canvasRect.top() );
sd->setLength( canvasRect.height() - 1 );
QwtTransform *transform = NULL;
if ( yMap.transformation() )
transform = yMap.transformation()->copy();
sd->setTransformation( transform );
}
painter->setFont( d_data->font );
sd->draw( painter, d_data->palette );
}
/*!
\brief Paint a scale into a given rectangle.
Paint the scale into a given rectangle.
\param plot Plot widget
\param painter Painter
\param axisId Axis
\param startDist Start border distance
\param endDist End border distance
\param baseDist Base distance
\param rect Bounding rectangle
*/
void QwtPlotRenderer::renderScale( const QwtPlot *plot,
QPainter *painter,
int axisId, int startDist, int endDist, int baseDist,
const QRectF &rect ) const
{
if ( !plot->axisEnabled( axisId ) )
return;
const QwtScaleWidget *scaleWidget = plot->axisWidget( axisId );
if ( scaleWidget->isColorBarEnabled()
&& scaleWidget->colorBarWidth() > 0 )
{
scaleWidget->drawColorBar( painter, scaleWidget->colorBarRect( rect ) );
baseDist += scaleWidget->colorBarWidth() + scaleWidget->spacing();
}
painter->save();
QwtScaleDraw::Alignment align;
double x, y, w;
switch ( axisId )
{
case QwtPlot::yLeft:
{
x = rect.right() - 1.0 - baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case QwtPlot::yRight:
{
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::RightScale;
break;
}
case QwtPlot::xTop:
{
x = rect.left() + startDist;
y = rect.bottom() - 1.0 - baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case QwtPlot::xBottom:
{
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
scaleWidget->drawTitle( painter, align, rect );
painter->setFont( scaleWidget->font() );
QwtScaleDraw *sd = const_cast<QwtScaleDraw *>( scaleWidget->scaleDraw() );
const QPointF sdPos = sd->pos();
const double sdLength = sd->length();
sd->move( x, y );
sd->setLength( w );
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup( QPalette::Active );
sd->draw( painter, palette );
// reset previous values
sd->move( sdPos );
sd->setLength( sdLength );
painter->restore();
}
/*!
\brief Draw the scale
*/
void QwtPlotScaleItem::draw(QPainter *painter,
const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QRect &canvasRect) const
{
if ( canvasRect != d_data->canvasRectCache )
{
QwtPlotScaleItem* that = (QwtPlotScaleItem*)this;
that->updateBorders();
}
QPen pen = painter->pen();
pen.setStyle(Qt::SolidLine);
painter->setPen(pen);
int pw = painter->pen().width();
if ( pw == 0 )
pw = 1;
QwtScaleDraw *sd = d_data->scaleDraw;
if ( sd->orientation() == Qt::Horizontal )
{
int y;
if ( d_data->borderDistance >= 0 )
{
if ( sd->alignment() == QwtScaleDraw::BottomScale )
y = canvasRect.top() + d_data->borderDistance;
else
{
y = canvasRect.bottom() - d_data->borderDistance - pw + 1;
}
}
else
{
y = yMap.transform(d_data->position);
}
if ( y < canvasRect.top() || y > canvasRect.bottom() )
return;
sd->move(canvasRect.left(), y);
sd->setLength(canvasRect.width() - 1);
sd->setTransformation(xMap.transformation()->copy());
}
else // == Qt::Vertical
{
int x;
if ( d_data->borderDistance >= 0 )
{
if ( sd->alignment() == QwtScaleDraw::RightScale )
x = canvasRect.left() + d_data->borderDistance;
else
{
x = canvasRect.right() - d_data->borderDistance - pw + 1;
}
}
else
{
x = xMap.transform(d_data->position);
}
if ( x < canvasRect.left() || x > canvasRect.right() )
return;
sd->move(x, canvasRect.top());
sd->setLength(canvasRect.height() - 1);
sd->setTransformation(yMap.transformation()->copy());
}
painter->setFont(d_data->font);
#if QT_VERSION < 0x040000
sd->draw(painter, d_data->colorGroup);
#else
sd->draw(painter, d_data->palette);
#endif
}
void QwtPlot::printLegend(QPainter *painter, const QRect &rect) const
{
if ( !legend() || legend()->isEmpty() )
return;
QLayout *l = legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits("QwtDynGridLayout") )
return;
QwtDynGridLayout *legendLayout = (QwtDynGridLayout *)l;
uint numCols = legendLayout->columnsForWidth(rect.width());
#if QT_VERSION < 0x040000
QValueList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#else
QList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#endif
int index = 0;
#if QT_VERSION < 0x040000
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator)
{
#else
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt(i);
#endif
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipping(true);
QwtPainter::setClipRect(painter, itemRects[index]);
printLegendItem(painter, w, itemRects[index]);
index++;
painter->restore();
}
}
}
/*!
Print the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPlot::printLegendItem(QPainter *painter,
const QWidget *w, const QRect &rect) const
{
if ( w->inherits("QwtLegendItem") )
{
QwtLegendItem *item = (QwtLegendItem *)w;
painter->setFont(item->font());
item->drawItem(painter, rect);
}
}
/*!
\brief Paint a scale into a given rectangle.
Paint the scale into a given rectangle.
\param painter Painter
\param axisId Axis
\param startDist Start border distance
\param endDist End border distance
\param baseDist Base distance
\param rect Bounding rectangle
*/
void QwtPlot::printScale(QPainter *painter,
int axisId, int startDist, int endDist, int baseDist,
const QRect &rect) const
{
if (!axisEnabled(axisId))
return;
QwtScaleDraw::Alignment align;
int x, y, w;
switch(axisId)
{
case yLeft:
{
x = rect.right() - baseDist + 1;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case yRight:
{
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::RightScale;
break;
}
case xTop:
{
x = rect.left() + startDist;
y = rect.bottom() - baseDist + 1;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case xBottom:
{
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
const QwtScaleWidget *scaleWidget = axisWidget(axisId);
scaleWidget->drawTitle(painter, align, rect);
painter->save();
painter->setFont(scaleWidget->font());
QwtScaleDraw *sd = (QwtScaleDraw *)scaleWidget->scaleDraw();
const QPoint sdPos = sd->pos();
const int sdLength = sd->length();
sd->move(x, y);
sd->setLength(w);
#if QT_VERSION < 0x040000
sd->draw(painter, scaleWidget->palette().active());
#else
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup(QPalette::Active);
sd->draw(painter, palette);
#endif
// reset previous values
sd->move(sdPos);
sd->setLength(sdLength);
painter->restore();
}
/*!
Print the canvas into a given rectangle.
\param painter Painter
\param map Maps mapping between plot and paint device coordinates
\param canvasRect Bounding rectangle
\param pfilter Print filter
\sa QwtPlotPrintFilter
*/
void QwtPlot::printCanvas(QPainter *painter, const QRect &canvasRect,
const QwtArray<QwtScaleMap> &map, const QwtPlotPrintFilter &pfilter) const
{
if ( pfilter.options() & QwtPlotPrintFilter::PrintCanvasBackground )
{
painter->setPen(Qt::NoPen);
QBrush bgBrush;
#if QT_VERSION >= 0x040000
bgBrush = canvas()->palette().brush(backgroundRole());
#else
QColorGroup::ColorRole role =
QPalette::backgroundRoleFromMode( backgroundMode() );
bgBrush = canvas()->colorGroup().brush( role );
#endif
painter->setBrush(bgBrush);
int x1 = 0;
int x2 = 0;
int y1 = 0;
int y2 = 0;
#if QT_VERSION >= 0x040000
switch(painter->device()->paintEngine()->type())
{
case QPaintEngine::PostScript:
x2 = 1;
y2 = 1;
break;
default:;
}
#endif
const QwtMetricsMap map = QwtPainter::metricsMap();
x1 = map.screenToLayoutX(x1);
x2 = map.screenToLayoutX(x2);
y1 = map.screenToLayoutY(y1);
y2 = map.screenToLayoutY(y2);
QwtPainter::drawRect(painter,
canvasRect.x() + x1, canvasRect.y() + y1,
canvasRect.width() - x2, canvasRect.height() - y2);
}
else
{
// Paint the canvas borders instead.
painter->setPen(QPen(Qt::black));
painter->setBrush(QBrush(Qt::NoBrush));
QwtPainter::drawRect(painter, canvasRect);
}
painter->setClipping(true);
QwtPainter::setClipRect(painter, canvasRect);
drawItems(painter, canvasRect, map, pfilter);
}
void QwtPlot::printScale(QPainter *painter,
int axis, int startDist, int endDist, int baseDist,
const QRect &rect) const
{
if (!d_axisEnabled[axis])
return;
QwtScaleDraw::Orientation o;
int x, y, w;
switch(axis)
{
case yLeft:
{
x = rect.right() - baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
o = QwtScaleDraw::Left;
break;
}
case yRight:
{
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
o = QwtScaleDraw::Right;
break;
}
case xTop:
{
x = rect.left() + startDist;
y = rect.bottom() - baseDist;
w = rect.width() - startDist - endDist;
o = QwtScaleDraw::Top;
break;
}
case xBottom:
{
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
o = QwtScaleDraw::Bottom;
break;
}
default:
return;
}
const QwtScale *scale = d_scale[axis];
scale->drawTitle(painter, o, rect);
painter->save();
QPen pen(painter->pen());
pen.setColor(
scale->palette().color(QPalette::Active, QColorGroup::Foreground));
painter->setPen(pen);
painter->setFont(scale->font());
QwtScaleDraw *sd = (QwtScaleDraw *)scale->scaleDraw();
int xSd = sd->x();
int ySd = sd->y();
int lengthSd = sd->length();
sd->setGeometry(x, y, w, o);
sd->draw(painter);
sd->setGeometry(xSd, ySd, lengthSd, o); // reset previous values
painter->restore();
}