void QwtPolarRenderer::renderLegend(
QPainter *painter, const QRectF &rect ) const
{
QwtLegend *legend = d_data->plot->legend();
if ( legend == NULL || legend->isEmpty() )
return;
const QwtDynGridLayout *legendLayout = qobject_cast<QwtDynGridLayout *>(
legend->contentsWidget()->layout() );
if ( legendLayout == NULL )
return;
uint numCols = legendLayout->columnsForWidth( rect.width() );
const QList<QRect> itemRects =
legendLayout->layoutItems( rect.toRect(), numCols );
int index = 0;
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipRect( itemRects[index] );
renderLegendItem( painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
/*!
Print the legend into a given rectangle.
\param plot Plot widget
\param painter Painter
\param rect Bounding rectangle
*/
void QwtPlotRenderer::renderLegend( const QwtPlot *plot,
QPainter *painter, const QRectF &rect ) const
{
if ( !plot->legend() || plot->legend()->isEmpty() )
return;
QLayout *l = plot->legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits( "QwtDynGridLayout" ) )
return;
QwtDynGridLayout *legendLayout = ( QwtDynGridLayout * )l;
uint numCols = legendLayout->columnsForWidth( rect.width() );
QList<QRect> itemRects =
legendLayout->layoutItems( rect.toRect(), numCols );
int index = 0;
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipRect( itemRects[index] );
renderLegendItem( plot, painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
/*!
Render the legend into a given rectangle.
\param plot Plot widget
\param painter Painter
\param rect Bounding rectangle
*/
void QwtPlotRenderer::renderLegend( const QwtPlot *plot,
QPainter *painter, const QRectF &rect ) const
{
if ( !plot->legend() || plot->legend()->isEmpty() )
return;
if ( !( d_data->discardFlags & DiscardBackground ) )
{
if ( plot->legend()->autoFillBackground() ||
plot->legend()->testAttribute( Qt::WA_StyledBackground ) )
{
qwtRenderBackground( painter, rect, plot->legend() );
}
}
const QwtDynGridLayout *legendLayout = qobject_cast<QwtDynGridLayout *>(
plot->legend()->contentsWidget()->layout() );
if ( legendLayout == NULL )
return;
int left, right, top, bottom;
plot->legend()->getContentsMargins( &left, &top, &right, &bottom );
QRect layoutRect;
layoutRect.setLeft( qCeil( rect.left() ) + left );
layoutRect.setTop( qCeil( rect.top() ) + top );
layoutRect.setRight( qFloor( rect.right() ) - right );
layoutRect.setBottom( qFloor( rect.bottom() ) - bottom );
uint numCols = legendLayout->columnsForWidth( layoutRect.width() );
QList<QRect> itemRects =
legendLayout->layoutItems( layoutRect, numCols );
int index = 0;
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipRect( itemRects[index] );
renderLegendItem( plot, painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
/*!
Render the legend into a given rectangle.
\param plot Plot widget
\param painter Painter
\param rect Bounding rectangle
*/
void QwtPlotRenderer::renderLegend( const QwtPlot *plot,
QPainter *painter, const QRectF &rect ) const
{
if ( !plot->legend() || plot->legend()->isEmpty() )
return;
if ( !( d_data->discardFlags & DiscardBackground ) )
{
if ( plot->legend()->autoFillBackground() ||
plot->legend()->testAttribute( Qt::WA_StyledBackground ) )
{
qwtRenderBackground( painter, rect, plot->legend() );
}
}
const QwtDynGridLayout *legendLayout = qobject_cast<QwtDynGridLayout *>(
plot->legend()->contentsWidget()->layout() );
if ( legendLayout == NULL )
return;
uint numCols = legendLayout->columnsForWidth( rect.width() );
QList<QRect> itemRects =
legendLayout->layoutItems( rect.toRect(), numCols );
int index = 0;
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipRect( itemRects[index] );
renderLegendItem( plot, painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
void QwtPolarPlot::renderLegend( QPainter *painter, const QRect &rect ) const
{
#if 1
// Shift this code into QwtLegend, so that Qwt/QwtPolar can share it
#endif
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] );
renderLegendItem( painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
/*!
Render the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPolarPlot::renderLegendItem( QPainter *painter,
const QWidget *w, const QRect &rect ) const
{
#if 1
// Shift this code into QwtLegend, so that Qwt/QwtPolar can share it
#endif
if ( w->inherits( "QwtLegendItem" ) )
{
QwtLegendItem *item = ( QwtLegendItem * )w;
painter->setFont( item->font() );
item->drawItem( painter, rect );
}
}
