void QgsSvgCache::containsParams( const QString& path, bool& hasFillParam, QColor& defaultFillColor, bool& hasOutlineParam, QColor& defaultOutlineColor,
bool& hasOutlineWidthParam, double& defaultOutlineWidth ) const
{
defaultFillColor = QColor( Qt::black );
defaultOutlineColor = QColor( Qt::black );
defaultOutlineWidth = 1.0;
QDomDocument svgDoc;
if ( !svgDoc.setContent( getImageData( path ) ) )
{
return;
}
QDomElement docElem = svgDoc.documentElement();
containsElemParams( docElem, hasFillParam, defaultFillColor, hasOutlineParam, defaultOutlineColor, hasOutlineWidthParam, defaultOutlineWidth );
}
void QgsSvgCache::containsParams( const QString& path, bool& hasFillParam, QColor& defaultFillColor, bool& hasOutlineParam, QColor& defaultOutlineColor,
bool& hasOutlineWidthParam, double& defaultOutlineWidth ) const
{
defaultFillColor = QColor( Qt::black );
defaultOutlineColor = QColor( Qt::black );
defaultOutlineWidth = 1.0;
QFile svgFile( path );
if ( !svgFile.open( QIODevice::ReadOnly ) )
{
return;
}
QDomDocument svgDoc;
if ( !svgDoc.setContent( &svgFile ) )
{
return;
}
QDomElement docElem = svgDoc.documentElement();
containsElemParams( docElem, hasFillParam, defaultFillColor, hasOutlineParam, defaultOutlineColor, hasOutlineWidthParam, defaultOutlineWidth );
}
void QgsSvgCache::containsParams( const QString &path,
bool &hasFillParam, bool &hasDefaultFillParam, QColor &defaultFillColor,
bool &hasFillOpacityParam, bool &hasDefaultFillOpacity, double &defaultFillOpacity,
bool &hasStrokeParam, bool &hasDefaultStrokeColor, QColor &defaultStrokeColor,
bool &hasStrokeWidthParam, bool &hasDefaultStrokeWidth, double &defaultStrokeWidth,
bool &hasStrokeOpacityParam, bool &hasDefaultStrokeOpacity, double &defaultStrokeOpacity ) const
{
hasFillParam = false;
hasFillOpacityParam = false;
hasStrokeParam = false;
hasStrokeWidthParam = false;
hasStrokeOpacityParam = false;
defaultFillColor = QColor( Qt::white );
defaultFillOpacity = 1.0;
defaultStrokeColor = QColor( Qt::black );
defaultStrokeWidth = 0.2;
defaultStrokeOpacity = 1.0;
hasDefaultFillParam = false;
hasDefaultFillOpacity = false;
hasDefaultStrokeColor = false;
hasDefaultStrokeWidth = false;
hasDefaultStrokeOpacity = false;
QDomDocument svgDoc;
if ( !svgDoc.setContent( getImageData( path ) ) )
{
return;
}
QDomElement docElem = svgDoc.documentElement();
containsElemParams( docElem, hasFillParam, hasDefaultFillParam, defaultFillColor,
hasFillOpacityParam, hasDefaultFillOpacity, defaultFillOpacity,
hasStrokeParam, hasDefaultStrokeColor, defaultStrokeColor,
hasStrokeWidthParam, hasDefaultStrokeWidth, defaultStrokeWidth,
hasStrokeOpacityParam, hasDefaultStrokeOpacity, defaultStrokeOpacity );
}
void QgsSvgCache::containsElemParams( const QDomElement& elem, bool& hasFillParam, QColor& defaultFill, bool& hasOutlineParam, QColor& defaultOutline,
bool& hasOutlineWidthParam, double& defaultOutlineWidth ) const
{
if ( elem.isNull() )
{
return;
}
//we already have all the information, no need to go deeper
if ( hasFillParam && hasOutlineParam && hasOutlineWidthParam )
{
return;
}
//check this elements attribute
QDomNamedNodeMap attributes = elem.attributes();
int nAttributes = attributes.count();
QStringList valueSplit;
for ( int i = 0; i < nAttributes; ++i )
{
QDomAttr attribute = attributes.item( i ).toAttr();
if ( attribute.name().compare( "style", Qt::CaseInsensitive ) == 0 )
{
//entries separated by ';'
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 );
valueSplit = value.split( " " );
if ( !hasFillParam && value.startsWith( "param(fill)" ) )
{
hasFillParam = true;
if ( valueSplit.size() > 1 )
{
defaultFill = QColor( valueSplit.at( 1 ) );
}
}
else if ( !hasOutlineParam && value.startsWith( "param(outline)" ) )
{
hasOutlineParam = true;
if ( valueSplit.size() > 1 )
{
defaultOutline = QColor( valueSplit.at( 1 ) );
}
}
else if ( !hasOutlineWidthParam && value.startsWith( "param(outline-width)" ) )
{
hasOutlineWidthParam = true;
if ( valueSplit.size() > 1 )
{
defaultOutlineWidth = valueSplit.at( 1 ).toDouble();
}
}
}
}
else
{
QString value = attribute.value();
valueSplit = value.split( " " );
if ( !hasFillParam && value.startsWith( "param(fill)" ) )
{
hasFillParam = true;
if ( valueSplit.size() > 1 )
{
defaultFill = QColor( valueSplit.at( 1 ) );
}
}
else if ( !hasOutlineParam && value.startsWith( "param(outline)" ) )
{
hasOutlineParam = true;
if ( valueSplit.size() > 1 )
{
defaultOutline = QColor( valueSplit.at( 1 ) );
}
}
else if ( !hasOutlineWidthParam && value.startsWith( "param(outline-width)" ) )
{
hasOutlineWidthParam = true;
if ( valueSplit.size() > 1 )
{
defaultOutlineWidth = valueSplit.at( 1 ).toDouble();
}
}
}
}
//pass it further to child items
QDomNodeList childList = elem.childNodes();
int nChildren = childList.count();
for ( int i = 0; i < nChildren; ++i )
{
QDomElement childElem = childList.at( i ).toElement();
containsElemParams( childElem, hasFillParam, defaultFill, hasOutlineParam, defaultOutline, hasOutlineWidthParam, defaultOutlineWidth );
}
}
