void QgsSvgCache::replaceParamsAndCacheSvg( QgsSvgCacheEntry *entry )
{
if ( !entry )
{
return;
}
QDomDocument svgDoc;
if ( !svgDoc.setContent( getImageData( entry->path ) ) )
{
return;
}
//replace fill color, stroke color, stroke with in all nodes
QDomElement docElem = svgDoc.documentElement();
QSizeF viewboxSize;
double sizeScaleFactor = calcSizeScaleFactor( entry, docElem, viewboxSize );
entry->viewboxSize = viewboxSize;
replaceElemParams( docElem, entry->fill, entry->stroke, entry->strokeWidth * sizeScaleFactor );
entry->svgContent = svgDoc.toByteArray( 0 );
// toByteArray screws up tspans inside text by adding new lines before and after each span... this should help, at the
// risk of potentially breaking some svgs where the newline is desired
entry->svgContent.replace( "\n<tspan", "<tspan" );
entry->svgContent.replace( "</tspan>\n", "</tspan>" );
mTotalSize += entry->svgContent.size();
}
void QgsSvgCache::replaceParamsAndCacheSvg( QgsSvgCacheEntry* entry )
{
if ( !entry )
{
return;
}
QFile svgFile( entry->file );
if ( !svgFile.open( QIODevice::ReadOnly ) )
{
return;
}
QDomDocument svgDoc;
if ( !svgDoc.setContent( &svgFile ) )
{
return;
}
//replace fill color, outline color, outline with in all nodes
QDomElement docElem = svgDoc.documentElement();
replaceElemParams( docElem, entry->fill, entry->outline, entry->outlineWidth );
entry->svgContent = svgDoc.toByteArray();
mTotalSize += entry->svgContent.size();
}
void QgsSvgCache::replaceParamsAndCacheSvg( QgsSvgCacheEntry* entry )
{
if ( !entry )
{
return;
}
QDomDocument svgDoc;
if ( !svgDoc.setContent( getImageData( entry->file ) ) )
{
return;
}
//replace fill color, outline color, outline with in all nodes
QDomElement docElem = svgDoc.documentElement();
QSizeF viewboxSize;
double sizeScaleFactor = calcSizeScaleFactor( entry, docElem, viewboxSize );
entry->viewboxSize = viewboxSize;
replaceElemParams( docElem, entry->fill, entry->outline, entry->outlineWidth * sizeScaleFactor );
entry->svgContent = svgDoc.toByteArray();
mTotalSize += entry->svgContent.size();
}
void QgsSvgCache::replaceElemParams( QDomElement& elem, const QColor& fill, const QColor& outline, double outlineWidth )
{
if ( elem.isNull() )
{
return;
}
//go through attributes
QDomNamedNodeMap attributes = elem.attributes();
int nAttributes = attributes.count();
for ( int i = 0; i < nAttributes; ++i )
{
QDomAttr attribute = attributes.item( i ).toAttr();
//e.g. style="fill:param(fill);param(stroke)"
if ( attribute.name().compare( "style", Qt::CaseInsensitive ) == 0 )
{
//entries separated by ';'
QString newAttributeString;
QStringList entryList = attribute.value().split( ';' );
QStringList::const_iterator entryIt = entryList.constBegin();
for ( ; entryIt != entryList.constEnd(); ++entryIt )
{
QStringList keyValueSplit = entryIt->split( ':' );
if ( keyValueSplit.size() < 2 )
{
continue;
}
QString key = keyValueSplit.at( 0 );
QString value = keyValueSplit.at( 1 );
if ( value.startsWith( "param(fill" ) )
{
value = fill.name();
}
else if ( value.startsWith( "param(outline)" ) )
{
value = outline.name();
}
else if ( value.startsWith( "param(outline-width)" ) )
{
value = QString::number( outlineWidth );
}
if ( entryIt != entryList.constBegin() )
{
newAttributeString.append( ";" );
}
newAttributeString.append( key + ":" + value );
}
elem.setAttribute( attribute.name(), newAttributeString );
}
else
{
QString value = attribute.value();
if ( value.startsWith( "param(fill)" ) )
{
elem.setAttribute( attribute.name(), fill.name() );
}
else if ( value.startsWith( "param(outline)" ) )
{
elem.setAttribute( attribute.name(), outline.name() );
}
else if ( value.startsWith( "param(outline-width)" ) )
{
elem.setAttribute( attribute.name(), QString::number( outlineWidth ) );
}
}
}
QDomNodeList childList = elem.childNodes();
int nChildren = childList.count();
for ( int i = 0; i < nChildren; ++i )
{
QDomElement childElem = childList.at( i ).toElement();
replaceElemParams( childElem, fill, outline, outlineWidth );
}
}