void QgsGraduatedSymbolRendererV2::startRender( QgsRenderContext& context, const QgsFields& fields )
{
// find out classification attribute index from name
mAttrNum = fields.fieldNameIndex( mAttrName );
if ( mAttrNum == -1 )
{
mExpression.reset( new QgsExpression( mAttrName ) );
mExpression->prepare( fields );
}
QgsRangeList::iterator it = mRanges.begin();
for ( ; it != mRanges.end(); ++it )
{
it->symbol()->startRender( context, &fields );
if ( mRotation.data() || mSizeScale.data() )
{
QgsSymbolV2* tempSymbol = it->symbol()->clone();
tempSymbol->setRenderHints(( mRotation.data() ? QgsSymbolV2::DataDefinedRotation : 0 ) |
( mSizeScale.data() ? QgsSymbolV2::DataDefinedSizeScale : 0 ) );
tempSymbol->startRender( context, &fields );
mTempSymbols[ it->symbol()] = tempSymbol;
}
}
}
void QgsCategorizedSymbolRendererV2::startRender( QgsRenderContext& context, const QgsFields& fields )
{
// make sure that the hash table is up to date
rebuildHash();
// find out classification attribute index from name
mAttrNum = fields.fieldNameIndex( mAttrName );
if ( mAttrNum == -1 )
{
mExpression.reset( new QgsExpression( mAttrName ) );
mExpression->prepare( fields );
}
QgsCategoryList::iterator it = mCategories.begin();
for ( ; it != mCategories.end(); ++it )
{
it->symbol()->startRender( context, &fields );
if ( mRotation.data() || mSizeScale.data() )
{
QgsSymbolV2* tempSymbol = it->symbol()->clone();
tempSymbol->setRenderHints(( mRotation.data() ? QgsSymbolV2::DataDefinedRotation : 0 ) |
( mSizeScale.data() ? QgsSymbolV2::DataDefinedSizeScale : 0 ) );
tempSymbol->startRender( context, &fields );
mTempSymbols[ it->value().toString()] = tempSymbol;
}
}
}
void QgsCategorizedSymbolRendererV2::startRender( QgsRenderContext& context, const QgsVectorLayer *vlayer )
{
// make sure that the hash table is up to date
rebuildHash();
// find out classification attribute index from name
mAttrNum = vlayer ? vlayer->fieldNameIndex( mAttrName ) : -1;
mRotationFieldIdx = ( mRotationField.isEmpty() ? -1 : vlayer->fieldNameIndex( mRotationField ) );
mSizeScaleFieldIdx = ( mSizeScaleField.isEmpty() ? -1 : vlayer->fieldNameIndex( mSizeScaleField ) );
QgsCategoryList::iterator it = mCategories.begin();
for ( ; it != mCategories.end(); ++it )
{
it->symbol()->startRender( context, vlayer );
if ( mRotationFieldIdx != -1 || mSizeScaleFieldIdx != -1 )
{
QgsSymbolV2* tempSymbol = it->symbol()->clone();
tempSymbol->setRenderHints(( mRotationFieldIdx != -1 ? QgsSymbolV2::DataDefinedRotation : 0 ) |
( mSizeScaleFieldIdx != -1 ? QgsSymbolV2::DataDefinedSizeScale : 0 ) );
tempSymbol->startRender( context, vlayer );
mTempSymbols[ it->value().toString()] = tempSymbol;
}
}
}
void QgsCategorizedSymbolRendererV2::startRender( QgsRenderContext& context, const QgsFields& fields )
{
mCounting = context.rendererScale() == 0.0;
// make sure that the hash table is up to date
rebuildHash();
// find out classification attribute index from name
mAttrNum = fields.fieldNameIndex( mAttrName );
if ( mAttrNum == -1 )
{
mExpression.reset( new QgsExpression( mAttrName ) );
mExpression->prepare( &context.expressionContext() );
}
Q_FOREACH ( const QgsRendererCategoryV2& cat, mCategories )
{
cat.symbol()->startRender( context, &fields );
if ( mRotation.data() || mSizeScale.data() )
{
QgsSymbolV2* tempSymbol = cat.symbol()->clone();
tempSymbol->setRenderHints(( mRotation.data() ? QgsSymbolV2::DataDefinedRotation : 0 ) |
( mSizeScale.data() ? QgsSymbolV2::DataDefinedSizeScale : 0 ) );
tempSymbol->startRender( context, &fields );
mTempSymbols[ cat.symbol()] = tempSymbol;
}
}
void QgsGraduatedSymbolRendererV2::startRender( QgsRenderContext& context, const QgsVectorLayer *vlayer )
{
// find out classification attribute index from name
mAttrNum = vlayer ? vlayer->fieldNameIndex( mAttrName ) : -1;
mRotationFieldIdx = ( mRotationField.isEmpty() ? -1 : vlayer->fieldNameIndex( mRotationField ) );
mSizeScaleFieldIdx = ( mSizeScaleField.isEmpty() ? -1 : vlayer->fieldNameIndex( mSizeScaleField ) );
QgsRangeList::iterator it = mRanges.begin();
for ( ; it != mRanges.end(); ++it )
{
it->symbol()->startRender( context, vlayer );
if ( mRotationFieldIdx != -1 || mSizeScaleFieldIdx != -1 )
{
QgsSymbolV2* tempSymbol = it->symbol()->clone();
tempSymbol->setRenderHints(( mRotationFieldIdx != -1 ? QgsSymbolV2::DataDefinedRotation : 0 ) |
( mSizeScaleFieldIdx != -1 ? QgsSymbolV2::DataDefinedSizeScale : 0 ) );
tempSymbol->startRender( context, vlayer );
mTempSymbols[ it->symbol()] = tempSymbol;
}
}
}