void QgsComposerSymbolItem::readXML( const QDomElement& itemElem )
{
if ( itemElem.isNull() )
{
return;
}
setText( itemElem.attribute( "text", "" ) );
setLayerID( itemElem.attribute( "layerId", "" ) );
QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( QgsMapLayerRegistry::instance()->mapLayer( mLayerID ) );
if ( vLayer )
{
QDomElement symbolElem = itemElem.firstChildElement( "symbol" );
if ( !symbolElem.isNull() )
{
QgsSymbol* symbol = new QgsSymbol( vLayer->geometryType() );
symbol->readXML( symbolElem, vLayer );
setSymbol( symbol );
//add icon
switch ( symbol->type() )
{
case QGis::Point:
setIcon( QIcon( QPixmap::fromImage( symbol->getPointSymbolAsImage() ) ) );
break;
case QGis::Line:
setIcon( QIcon( QPixmap::fromImage( symbol->getLineSymbolAsImage() ) ) );
break;
case QGis::Polygon:
setIcon( QIcon( QPixmap::fromImage( symbol->getPolygonSymbolAsImage() ) ) );
break;
case QGis::NoGeometry:
setIcon( QIcon( QgsApplication::activeThemePath() + "/mIconTableLayer.png" ) );
break;
case QGis::UnknownGeometry:
// should not occur
break;
}
}
}
}
void QgsQuickPrint::printMap()
{
if ( mOutputFileName.isEmpty() )
{
return;
}
if ( mpMapRenderer == NULL )
{
return;
}
//ensure the user never omitted the extension from the file name
if ( !mOutputFileName.toUpper().endsWith( ".PDF" ) )
{
mOutputFileName += ".pdf";
}
// Initialising the printer this way lets us find out what
// the screen resolution is which we store and then
// reset the resolution of the printer after that...
QPrinter myPrinter( QPrinter::ScreenResolution );
// Try to force the printer resolution to 300dpi
// to get past platform specific defaults in printer
// resolution...
//
int myPrintResolutionDpi = 300;
myPrinter.setResolution( myPrintResolutionDpi );
myPrinter.setOutputFormat( QPrinter::PdfFormat );
QgsDebugMsg( QString( "Printing to page size %1" ).arg( pageSizeToString( mPageSize ) ) );
myPrinter.setPageSize( mPageSize );
myPrinter.setOutputFileName( mOutputFileName );
myPrinter.setOrientation( QPrinter::Landscape );
myPrinter.setDocName( "quickprint Report" );
QPainter myPrintPainter( &myPrinter );
myPrintPainter.setPen( Qt::gray );
myPrintPainter.setBrush( Qt::white );
// This is what we are aiming for:
// a
// +-(1)------ Acme Maps (2) --------------------------------------+
// |b 12/01/2007 (3) |
// | Earthquakes (4) |
// | +--(5)--------------------------------------------------------+ |
// | |c | |
// | | +-(6)---------------------------------------+ +~(7)~~~~~~+ | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | | | | | | |
// | | +-------------------------------------------+ +~~~~~~~~~~+ | |
// | | | |
// | +-------------------------------------------------------------+ |
// | |
// | +-(8)-----+ +-(9-)----+ +-(10)----+ /|\ |
// | | | |Copyright| | | / | \ |
// | | | | 2008 | | | |(11) |
// | +---------+ +---------+ +---------+ |
// | +~(12)~~~~~~+ |
// +-----------------------------------------------------------------+
//
// 1) PageBorder 8) Logo1
// 2) PageTitle 9) CopyrightText
// 3) MapDate 10) Logo2
// 4) MapTitle 11) NorthArrow
// 5) MapFrame 12) ScaleBar
// 6) MapPixmap
// 7) LegendPixmap
// a OriginXY
// b HorizontalSpacing
// c VerticalSpacing
//
// Note: Different operating systems will use different
// page resolutions for QPrinter::HighResolution so I'm
// working all coordinates out as percentages of page
// size so that we can hopefully get comarable print
// results on all platforms.
//
//
// Note #2: Im defining all measurements here as my plan
// is to later support templates with different page
// layouts and paper sizes etc.
//
//set the top left origin for the print layout
int myOriginX = myPrinter.pageRect().left();
int myOriginY = myPrinter.pageRect().top();
int myDrawableWidth = myPrinter.pageRect().width() - myOriginX;
int myDrawableHeight = myPrinter.pageRect().height() - myOriginY;
//define the spacing between layout elements
int myHorizontalSpacing = myDrawableWidth / 100; // 1%
int myVerticalSpacing = myDrawableHeight / 100; // 1%
//define the proportions for the page layout
int myMapWidthPercent = 65;
int myMapHeightPercent = 71;
int myLegendWidthPercent = 25;
int myLegendHeightPercent = 65;
int myLogoWidthPercent = 23;
int myLogoHeightPercent = 17;
//
// Remember the size and dpi of the maprender
// so we can restore it properly
//
int myOriginalDpi = mpMapRenderer->outputDpi();
//sensible default to prevent divide by zero
if ( 0 == myOriginalDpi ) myOriginalDpi = 96;
QSize myOriginalSize = mpMapRenderer->outputSize();
//define the font sizes and family
int myMapTitleFontSize = 24;
int myMapDateFontSize = 16;
int myMapNameFontSize = 32;
int myLegendFontSize = 12;
#ifdef Q_OS_LINUX//this sucks...
myLegendFontSize -= 2;
#endif
#ifdef WIN32 //this sucks too...
myMapTitleFontSize /= 2;
myMapDateFontSize /= 2;
myMapNameFontSize /= 2;
myLegendFontSize /= 2;
#endif
QString myFontFamily = "Arial";
//
// Draw the PageBorder
//
myPrintPainter.drawRect(
myOriginX, myOriginY, myDrawableWidth, myDrawableHeight );
//
// Draw the PageTitle
//
QFont myTitleFont( myFontFamily, myMapTitleFontSize );
myPrintPainter.setFont( myTitleFont );
QFontMetrics myTitleMetrics( myTitleFont, &myPrinter );
int myPageTitleHeight = myTitleMetrics.height();
int myPageTitleWidth = myTitleMetrics.width( mTitleText );
myOriginX += myHorizontalSpacing;
myOriginY -= ( myPageTitleHeight / 2 );
QRect myPageTitleRect( myOriginX,
myOriginY,
myPageTitleWidth,
myPageTitleHeight );
// make sure the title goes onto a white background
myPrintPainter.setPen( Qt::white );
myPrintPainter.drawRect( myPageTitleRect );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawText( myPageTitleRect, Qt::AlignCenter, mTitleText );
//
// Draw the MapDate
//
QFont myDateFont( myFontFamily, myMapDateFontSize );
QString myDateText( QDate::currentDate().toString( Qt::LocalDate ) );
myPrintPainter.setFont( myDateFont );
QFontMetrics myDateMetrics( myDateFont, &myPrinter );
int myDateHeight = myDateMetrics.height();
//int myDateWidth = myDateMetrics.width(myDateText);
myOriginX += myHorizontalSpacing;
myOriginY += myPageTitleHeight + myVerticalSpacing ;
QRect myDateRect( myOriginX,
myOriginY,
myPageTitleWidth, //use same width as page title for centering
myDateHeight );
// make sure the title goes onto a white background
myPrintPainter.setPen( Qt::white );
myPrintPainter.drawRect( myDateRect );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawText( myDateRect, Qt::AlignCenter, myDateText );
//
// Draw the MapName
//
QFont myNameFont( myFontFamily, myMapNameFontSize );
myPrintPainter.setFont( myNameFont );
QFontMetrics myNameMetrics( myNameFont, &myPrinter );
int myNameHeight = myNameMetrics.height();
int myNameWidth = myNameMetrics.width( mNameText );
myOriginX = myPrinter.pageRect().left() + myDrawableWidth / 2; //page center
myOriginX -= myNameWidth / 2;
myOriginY = myPrinter.pageRect().top() + ( myPageTitleHeight / 2 ) + myVerticalSpacing ;
QRect myNameRect( myOriginX,
myOriginY,
myNameWidth,
myNameHeight );
// make sure the title goes onto a white background
myPrintPainter.setPen( Qt::white );
myPrintPainter.drawRect( myNameRect );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawText( myNameRect, Qt::AlignCenter, mNameText );
//
// Draw the MapFrame (top)
//
int myMapFrameWidth = myDrawableWidth ;
myOriginX = myPrinter.pageRect().left() + myHorizontalSpacing;
myOriginY += myNameHeight + myVerticalSpacing;
QLine myMapFrameTopLine( myOriginX,
myOriginY,
myMapFrameWidth,
myOriginY );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawLine( myMapFrameTopLine );
// Draw the map onto a pixmap
// @TODO: we need to save teh extent of the screen map and
// then set them again for the print map so that the map scales
// properly in the print
int myMapDimensionX = ( myDrawableWidth / 100 ) * myMapHeightPercent;
int myMapDimensionY = ( myDrawableHeight / 100 ) * myMapWidthPercent;
QImage myMapImage( QSize( myMapDimensionX, myMapDimensionY ), QImage::Format_ARGB32 );
myMapImage.setDotsPerMeterX(( double )( myPrinter.logicalDpiX() ) / 25.4 * 1000.0 );
myMapImage.setDotsPerMeterY(( double )( myPrinter.logicalDpiY() ) / 25.4 * 1000.0 );
myMapImage.fill( 0 );
QPainter myMapPainter;
myMapPainter.begin( &myMapImage );
// Now resize for print
mpMapRenderer->setOutputSize( QSize( myMapDimensionX, myMapDimensionY ), ( myPrinter.logicalDpiX() + myPrinter.logicalDpiY() ) / 2 );
mpMapRenderer->render( &myMapPainter );
myMapPainter.end();
//draw the map pixmap onto our pdf print device
myOriginX = myPrinter.pageRect().left() + myHorizontalSpacing;
myOriginY += myVerticalSpacing * 2;
myPrintPainter.drawImage( myOriginX, myOriginY, myMapImage );
//
// Draw the legend
//
QFont myLegendFont( myFontFamily, myLegendFontSize );
//myPrintPainter.setFont(myLegendFont);
int myLegendDimensionX = ( myDrawableWidth / 100 ) * myLegendWidthPercent;
int myLegendDimensionY = ( myDrawableHeight / 100 ) * myLegendHeightPercent;
// Create a viewport to make coordinate conversions easier
// The viewport has the same dimensions as the page(otherwise items
// drawn into it will appear squashed), but a different origin.
QRect myOriginalViewport = myPrintPainter.viewport(); //for restoring later
myOriginX += myMapDimensionX + myHorizontalSpacing;
myPrintPainter.setViewport( myOriginX,
myOriginY,
myOriginalViewport.width(),
myOriginalViewport.height() );
//draw a rectangale around the legend frame
//@TODO make this user settable
if ( 0 == 1 ) //put some real logic here
{
myPrintPainter.drawRect( 0, 0, myLegendDimensionX, myLegendDimensionY );
}
//get font metric and other vars needed
QFontMetrics myLegendFontMetrics( myLegendFont, &myPrinter );
int myLegendFontHeight = myLegendFontMetrics.height();
int myLegendXPos = 0;
int myLegendYPos = 0;
int myLegendSpacer = myLegendFontHeight / 2; //for vertical and horizontal spacing
int myLegendVerticalSpacer = myLegendFontHeight / 3; //for vertical between rows
int myIconWidth = myLegendFontHeight;
myPrintPainter.setFont( myLegendFont );
QStringList myLayerSet = mpMapRenderer->layerSet();
QStringListIterator myLayerIterator( myLayerSet );
//second clause below is to prevent legend spilling out the bottom
while ( myLayerIterator.hasNext() &&
myLegendYPos < myLegendDimensionY )
{
QString myLayerId = myLayerIterator.next();
QgsMapLayer * mypLayer =
QgsMapLayerRegistry::instance()->mapLayer( myLayerId );
if ( mypLayer )
{
QgsVectorLayer *mypVectorLayer =
qobject_cast<QgsVectorLayer *>( mypLayer );
// TODO: add support for symbology-ng renderers
if ( mypVectorLayer && mypVectorLayer->renderer() )
{
QString myLayerName = mypVectorLayer->name();
QIcon myIcon;
QPixmap myPixmap( QSize( myIconWidth, myIconWidth ) ); //square
//based on code from qgslegendlayer.cpp - see that file for more info
const QgsRenderer* mypRenderer = mypVectorLayer->renderer();
const QList<QgsSymbol*> mySymbolList = mypRenderer->symbols();
//
// Single symbol
//
double widthScale = ( myPrinter.logicalDpiX() + myPrinter.logicalDpiY() ) / 2.0 / 25.4;
if ( 1 == mySymbolList.size() )
{
QgsSymbol * mypSymbol = mySymbolList.at( 0 );
myPrintPainter.setPen( mypSymbol->pen() );
myPrintPainter.setBrush( mypSymbol->brush() );
myLegendXPos = 0 ;
if ( mypSymbol->type() == QGis::Point )
{
QImage myImage;
myImage = mypSymbol->getPointSymbolAsImage( widthScale );
myPrintPainter.drawImage( myLegendXPos, myLegendYPos, myImage );
}
else if ( mypSymbol->type() == QGis::Line )
{
myPrintPainter.drawLine( myLegendXPos, myLegendYPos,
myLegendXPos + myIconWidth,
myLegendYPos + myIconWidth );
}
else //polygon
{
myPrintPainter.drawRect( myLegendXPos, myLegendYPos, myIconWidth, myIconWidth );
}
myLegendXPos += myIconWidth + myLegendSpacer;
myPrintPainter.setPen( Qt::black );
QStringList myWrappedLayerNameList = wordWrap( myLayerName,
myLegendFontMetrics,
myLegendDimensionX - myIconWidth );
//
// Loop through wrapped legend label lines
//
QStringListIterator myLineWrapIterator( myWrappedLayerNameList );
while ( myLineWrapIterator.hasNext() )
{
QString myLine = myLineWrapIterator.next();
QRect myLegendItemRect( myLegendXPos,
myLegendYPos,
myLegendDimensionX - myIconWidth,
myLegendFontHeight );
myPrintPainter.drawText( myLegendItemRect, Qt::AlignLeft, myLine );
myLegendYPos += myLegendVerticalSpacer + myLegendFontHeight;
}
}
else //class breaks
{
// draw in the layer name first, after we loop for the class breaks
QStringList myWrappedLayerNameList = wordWrap( myLayerName,
myLegendFontMetrics,
myLegendDimensionX - myIconWidth );
// Check the wrapped layer name wont overrun the space we have
// for the legend ...
int myLabelHeight = myLegendFontHeight *
myWrappedLayerNameList.count();
if ( myLegendYPos + myLabelHeight > myLegendDimensionY )
{
continue;
}
//
// Loop through wrapped legend label lines
//
QStringListIterator myLineWrapIterator( myWrappedLayerNameList );
while ( myLineWrapIterator.hasNext() )
{
QString myLine = myLineWrapIterator.next();
myLegendXPos = myIconWidth;
QRect myLegendItemRect( myLegendXPos,
myLegendYPos,
myLegendFontMetrics.width( myLine ),
myLegendFontHeight );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawText( myLegendItemRect, Qt::AlignLeft, myLine );
myLegendYPos += myLegendVerticalSpacer + myLegendFontHeight;
}
//
// Loop through the class breaks
//
QListIterator<QgsSymbol *> myIterator( mySymbolList );
while ( myIterator.hasNext() && myLegendYPos < myLegendDimensionY )
{
QgsSymbol * mypSymbol = myIterator.next();
myPrintPainter.setPen( mypSymbol->pen() );
myPrintPainter.setBrush( mypSymbol->brush() );
myLegendXPos = myLegendSpacer * 3; //extra indent for class breaks
if ( mypSymbol->type() == QGis::Point )
{
QImage myImage;
myImage = mypSymbol->getPointSymbolAsImage( widthScale );
myPrintPainter.drawImage( myLegendXPos, myLegendYPos, myImage );
}
else if ( mypSymbol->type() == QGis::Line )
{
myPrintPainter.drawLine( myLegendXPos, myLegendYPos,
myLegendXPos + myIconWidth,
myLegendYPos + myIconWidth );
}
else //polygon
{
myPrintPainter.drawRect(
myLegendXPos, myLegendYPos, myIconWidth, myIconWidth );
}
//
// Now work out the class break label
//
QString myLabel;
QString myLower = mypSymbol->lowerValue();
if ( !myLower.isEmpty() )
{
myLabel = myLower;
}
QString myUpper = mypSymbol->upperValue();
if ( !myUpper.isEmpty() )
{
myLabel += " - ";
myLabel += myUpper;
}
QString myText = mypSymbol->label();
if ( !myText.isEmpty() )
{
myLabel += " ";
myLabel += myText;
}
myLabel = myLabel.trimmed();
myLegendXPos += myIconWidth + myLegendSpacer;
myPrintPainter.setPen( Qt::black );
QStringList myWrappedLayerNameList = wordWrap( myLabel,
myLegendFontMetrics,
myLegendDimensionX - myLegendXPos );
//
// Loop through wrapped legend label lines
//
QStringListIterator myLineWrapIterator( myWrappedLayerNameList );
while ( myLineWrapIterator.hasNext() )
{
QString myLine = myLineWrapIterator.next();
// check if the text will overflow the space we have
QRect myLegendItemRect( myLegendXPos,
myLegendYPos,
myLegendDimensionX - myIconWidth,
myLegendFontHeight );
myPrintPainter.drawText( myLegendItemRect, Qt::AlignLeft, myLine );
myLegendYPos += myLegendVerticalSpacer + myLegendFontHeight;
} //wordwrap loop
} //symbol loop
} //class breaks
} //if vectorlayer
} //if maplayer
} //layer iterator
//reinstate the viewport
myPrintPainter.setViewport( myOriginalViewport );
//
// Draw the MapFrame (bottom)
//
myOriginX = myPrinter.pageRect().left() + myHorizontalSpacing;
myOriginY += myMapDimensionY + ( myVerticalSpacing * 2 );
QLine myMapFrameBottomLine( myOriginX,
myOriginY,
myMapFrameWidth,
myOriginY );
myPrintPainter.setPen( Qt::black );
myPrintPainter.drawLine( myMapFrameBottomLine );
//
// Draw logo 1
//
int myLogoXDim = ( myDrawableWidth / 100 ) * myLogoWidthPercent;
int myLogoYDim = ( myDrawableHeight / 100 ) * myLogoHeightPercent;
QPixmap myLogo1;
QgsDebugMsg( QString( "Logo1: %1" ).arg( mLogo1File ) );
myLogo1.fill( Qt::white );
myLogo1.load( mLogo1File );
myLogo1 = myLogo1.scaled( myLogoXDim, myLogoYDim, Qt::KeepAspectRatio );
myOriginX = myPrinter.pageRect().left() + myHorizontalSpacing;
myOriginY += myVerticalSpacing ;
myPrintPainter.drawPixmap( myOriginX,
myOriginY,
myLogo1 );
//
// Draw Copyright Text
//
myOriginX += myHorizontalSpacing + myLogoXDim;
QRect myCopyrightRect( myOriginX, myOriginY, myLogoXDim, myLogoYDim );
myPrintPainter.setPen( Qt::black );
QFont myCopyrightFont( myFontFamily, myMapDateFontSize );
myPrintPainter.setFont( myCopyrightFont );
//myPrintPainter.drawRect( myCopyrightRect );
myPrintPainter.drawText( myCopyrightRect, Qt::AlignCenter | Qt::TextWordWrap, mCopyrightText );
//
// Draw logo 2
//
QPixmap myLogo2;
myLogo2.fill( Qt::white );
myLogo2.load( mLogo2File );
myLogo2 = myLogo2.scaled( myLogoXDim, myLogoYDim, Qt::KeepAspectRatio );
myOriginX += myHorizontalSpacing + myLogoXDim;
myPrintPainter.drawPixmap( myOriginX,
myOriginY,
myLogo2 );
//
// Draw the north arrow
//
myOriginX += myHorizontalSpacing + myLogoXDim;
// use half the available space for the n.arrow
// and the rest for the scale bar (see below)
QPixmap myNorthArrow( myLogoYDim / 2, myLogoYDim / 2 );
myNorthArrow.fill( Qt::white );
QPainter myNorthPainter( &myNorthArrow );
QSvgRenderer mySvgRenderer( mNorthArrowFile );
mySvgRenderer.render( &myNorthPainter );
myPrintPainter.drawPixmap( myOriginX + (( myLogoXDim / 2 ) ),
myOriginY,
myNorthArrow );
//
// Draw the scale bar
//
myOriginY += myLogoYDim / 2 + myVerticalSpacing;
myPrintPainter.setViewport( myOriginX,
myOriginY,
myOriginalViewport.width(),
myOriginalViewport.height() );
renderPrintScaleBar( &myPrintPainter, mpMapRenderer, myLogoXDim );
myPrintPainter.setViewport( myOriginalViewport );
//
// Finish up
//
myPrintPainter.end();
#if 0
mProgressDialog.setValue( 0 );
mProgressDialog.setLabelText( tr( "Please wait while your report is generated", "COMMENTED OUT" ) );
mProgressDialog.show();
mProgressDialog.setWindowModality( Qt::WindowModal );
mProgressDialog.setAutoClose( true );
#endif
//
// Restore the map render to its former glory
//
mpMapRenderer->setOutputSize( myOriginalSize, myOriginalDpi );
}
void QgsUniqueValueRenderer::renderFeature( QgsRenderContext &renderContext, QgsFeature& f, QImage* img, bool selected, double opacity )
{
QPainter *p = renderContext.painter();
QgsSymbol* symbol = symbolForFeature( &f );
if ( !symbol ) //no matching symbol
{
if ( img && mGeometryType == QGis::Point )
{
img->fill( 0 );
}
else if ( mGeometryType != QGis::Point )
{
p->setPen( Qt::NoPen );
p->setBrush( Qt::NoBrush );
}
return;
}
// Point
if ( img && mGeometryType == QGis::Point )
{
double fieldScale = 1.0;
double rotation = 0.0;
if ( symbol->scaleClassificationField() >= 0 )
{
//first find out the value for the scale classification attribute
fieldScale = sqrt( qAbs( f.attribute( symbol->scaleClassificationField() ).toDouble() ) );
}
if ( symbol->rotationClassificationField() >= 0 )
{
rotation = f.attribute( symbol->rotationClassificationField() ).toDouble();
}
QString oldName;
if ( symbol->symbolField() >= 0 )
{
QString name = f.attribute( symbol->symbolField() ).toString();
oldName = symbol->pointSymbolName();
symbol->setNamedPointSymbol( name );
}
double scale = renderContext.scaleFactor();
if ( symbol->pointSizeUnits() )
{
scale = 1.0 / renderContext.mapToPixel().mapUnitsPerPixel();
}
*img = symbol->getPointSymbolAsImage( scale, selected, mSelectionColor,
fieldScale, rotation, renderContext.rasterScaleFactor(),
opacity );
if ( !oldName.isNull() )
{
symbol->setNamedPointSymbol( oldName );
}
}
// Line, polygon
else if ( mGeometryType != QGis::Point )
{
if ( !selected )
{
QPen pen = symbol->pen();
pen.setWidthF( renderContext.scaleFactor() * pen.widthF() );
p->setPen( pen );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = symbol->brush();
scaleBrush( brush, renderContext.rasterScaleFactor() ); //scale brush content for printout
p->setBrush( brush );
}
}
else
{
QPen pen = symbol->pen();
pen.setWidthF( renderContext.scaleFactor() * pen.widthF() );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = symbol->brush();
scaleBrush( brush, renderContext.rasterScaleFactor() ); //scale brush content for printout
brush.setColor( mSelectionColor );
p->setBrush( brush );
}
else //don't draw outlines of polygons in selection color otherwise they appear merged
{
pen.setColor( mSelectionColor );
}
p->setPen( pen );
}
}
}
void QgsGraduatedSymbolRenderer::renderFeature( QPainter * p, QgsFeature & f, QImage* img, bool selected, double widthScale, double rasterScaleFactor )
{
QgsSymbol* theSymbol = symbolForFeature( &f );
if ( !theSymbol )
{
if ( img && mGeometryType == QGis::Point )
{
img->fill( 0 );
}
else if ( mGeometryType != QGis::Point )
{
p->setPen( Qt::NoPen );
p->setBrush( Qt::NoBrush );
}
return;
}
//set the qpen and qpainter to the right values
// Point
if ( img && mGeometryType == QGis::Point )
{
double fieldScale = 1.0;
double rotation = 0.0;
if ( theSymbol->scaleClassificationField() >= 0 )
{
//first find out the value for the scale classification attribute
const QgsAttributeMap& attrs = f.attributeMap();
fieldScale = sqrt( fabs( attrs[theSymbol->scaleClassificationField()].toDouble() ) );
QgsDebugMsg( QString( "Feature has field scale factor %1" ).arg( fieldScale ) );
}
if ( theSymbol->rotationClassificationField() >= 0 )
{
const QgsAttributeMap& attrs = f.attributeMap();
rotation = attrs[theSymbol->rotationClassificationField()].toDouble();
QgsDebugMsg( QString( "Feature has rotation factor %1" ).arg( rotation ) );
}
*img = theSymbol->getPointSymbolAsImage( widthScale, selected, mSelectionColor, fieldScale, rotation, rasterScaleFactor );
}
// Line, polygon
if ( mGeometryType != QGis::Point )
{
if ( !selected )
{
QPen pen = theSymbol->pen();
pen.setWidthF( widthScale * pen.widthF() );
p->setPen( pen );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = theSymbol->brush();
scaleBrush( brush, rasterScaleFactor ); //scale brush content for printout
p->setBrush( brush );
}
}
else
{
QPen pen = theSymbol->pen();
pen.setWidthF( widthScale * pen.widthF() );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = theSymbol->brush();
scaleBrush( brush, rasterScaleFactor ); //scale brush content for printout
brush.setColor( mSelectionColor );
p->setBrush( brush );
}
else //dont draw outlines in selection colour for polys otherwise they appear merged
{
pen.setColor( mSelectionColor );
}
p->setPen( pen );
}
}
}
void QgsGraduatedSymbolRenderer::renderFeature( QgsRenderContext &renderContext, QgsFeature & f, QImage* img, bool selected, double opacity )
{
QPainter *p = renderContext.painter();
QgsSymbol* theSymbol = symbolForFeature( &f );
if ( !theSymbol )
{
if ( img && mGeometryType == QGis::Point )
{
img->fill( 0 );
}
else if ( mGeometryType != QGis::Point )
{
p->setPen( Qt::NoPen );
p->setBrush( Qt::NoBrush );
}
return;
}
//set the qpen and qpainter to the right values
// Point
if ( img && mGeometryType == QGis::Point )
{
double fieldScale = 1.0;
double rotation = 0.0;
if ( theSymbol->scaleClassificationField() >= 0 )
{
//first find out the value for the scale classification attribute
const QgsAttributeMap& attrs = f.attributeMap();
fieldScale = sqrt( qAbs( attrs[theSymbol->scaleClassificationField()].toDouble() ) );
QgsDebugMsgLevel( QString( "Feature has field scale factor %1" ).arg( fieldScale ), 3 );
}
if ( theSymbol->rotationClassificationField() >= 0 )
{
const QgsAttributeMap& attrs = f.attributeMap();
rotation = attrs[theSymbol->rotationClassificationField()].toDouble();
QgsDebugMsgLevel( QString( "Feature has rotation factor %1" ).arg( rotation ), 3 );
}
QString oldName;
if ( theSymbol->symbolField() >= 0 )
{
const QgsAttributeMap& attrs = f.attributeMap();
QString name = attrs[theSymbol->symbolField()].toString();
QgsDebugMsgLevel( QString( "Feature has name %1" ).arg( name ), 3 );
oldName = theSymbol->pointSymbolName();
theSymbol->setNamedPointSymbol( name );
}
double scale = renderContext.scaleFactor();
if ( theSymbol->pointSizeUnits() )
{
scale = 1.0 / renderContext.mapToPixel().mapUnitsPerPixel();
}
*img = theSymbol->getPointSymbolAsImage( scale, selected, mSelectionColor, fieldScale,
rotation, renderContext.rasterScaleFactor(), opacity );
if ( !oldName.isNull() )
{
theSymbol->setNamedPointSymbol( oldName );
}
}
// Line, polygon
if ( mGeometryType != QGis::Point )
{
if ( !selected )
{
QPen pen = theSymbol->pen();
pen.setWidthF( renderContext.scaleFactor() * pen.widthF() );
p->setPen( pen );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = theSymbol->brush();
scaleBrush( brush, renderContext.rasterScaleFactor() ); //scale brush content for printout
p->setBrush( brush );
}
}
else
{
QPen pen = theSymbol->pen();
pen.setWidthF( renderContext.scaleFactor() * pen.widthF() );
if ( mGeometryType == QGis::Polygon )
{
QBrush brush = theSymbol->brush();
scaleBrush( brush, renderContext.rasterScaleFactor() ); //scale brush content for printout
brush.setColor( mSelectionColor );
p->setBrush( brush );
}
else //don't draw outlines in selection color for polys otherwise they appear merged
{
pen.setColor( mSelectionColor );
}
p->setPen( pen );
}
}
}
