void QgsLineSymbolLayerV2::renderPolygonOutline( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
renderPolyline( points, context );
if ( rings )
{
foreach ( const QPolygonF& ring, *rings )
renderPolyline( ring, context );
}
}
void QgsLineSymbolLayer::renderPolygonStroke( const QPolygonF &points, QList<QPolygonF> *rings, QgsSymbolRenderContext &context )
{
renderPolyline( points, context );
if ( rings )
{
Q_FOREACH ( const QPolygonF &ring, *rings )
renderPolyline( ring, context );
}
}
void QgsMarkerLineSymbolLayerV2::renderPolygonOutline( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
renderPolyline( points, context );
if ( rings )
{
mOffset = -mOffset; // invert the offset for rings!
foreach ( const QPolygonF& ring, *rings )
renderPolyline( ring, context );
mOffset = -mOffset;
}
}
void QgsSimpleLineSymbolLayerV2::renderPolygonOutline( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
QPainter* p = context.renderContext().painter();
if ( !p )
{
return;
}
if ( mDrawInsidePolygon )
{
//only drawing the line on the interior of the polygon, so set clip path for painter
p->save();
QPainterPath clipPath;
clipPath.addPolygon( points );
if ( rings != NULL )
{
//add polygon rings
QList<QPolygonF>::const_iterator it = rings->constBegin();
for ( ; it != rings->constEnd(); ++it )
{
QPolygonF ring = *it;
clipPath.addPolygon( ring );
}
}
//use intersect mode, as a clip path may already exist (eg, for composer maps)
p->setClipPath( clipPath, Qt::IntersectClip );
}
renderPolyline( points, context );
if ( rings )
{
mOffset = -mOffset; // invert the offset for rings!
foreach ( const QPolygonF& ring, *rings )
renderPolyline( ring, context );
mOffset = -mOffset;
}
if ( mDrawInsidePolygon )
{
//restore painter to reset clip path
p->restore();
}
}
void QgsLineSymbolLayerV2::drawPreviewIcon( QgsSymbolV2RenderContext& context, QSize size )
{
QPolygonF points;
// we're adding 0.5 to get rid of blurred preview:
// drawing antialiased lines of width 1 at (x,0)-(x,100) creates 2px line
points << QPointF( 0, size.height() / 2 + 0.5 ) << QPointF( size.width(), size.height() / 2 + 0.5 );
startRender( context );
renderPolyline( points, context );
stopRender( context );
}
void QgsLineSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
QPolygonF points;
// we're adding 0.5 to get rid of blurred preview:
// drawing antialiased lines of width 1 at (x,0)-(x,100) creates 2px line
points << QPointF( 0, int( size.height() / 2 ) + 0.5 ) << QPointF( size.width(), int( size.height() / 2 ) + 0.5 );
startRender( context );
QgsPaintEffect *effect = paintEffect();
if ( effect && effect->enabled() )
{
QgsEffectPainter p( context.renderContext(), effect );
renderPolyline( points, context );
}
else
{
renderPolyline( points, context );
}
stopRender( context );
}
void QgsMarkerLineSymbolLayerV2::renderPolygonOutline( const QPolygonF& points, QList<QPolygonF>* rings, QgsSymbolV2RenderContext& context )
{
const QgsCurvePolygonV2* curvePolygon = dynamic_cast<const QgsCurvePolygonV2*>( context.renderContext().geometry() );
if ( curvePolygon )
{
context.renderContext().setGeometry( curvePolygon->exteriorRing() );
}
renderPolyline( points, context );
if ( rings )
{
mOffset = -mOffset; // invert the offset for rings!
for ( int i = 0; i < rings->size(); ++i )
{
if ( curvePolygon )
{
context.renderContext().setGeometry( curvePolygon->interiorRing( i ) );
}
renderPolyline( rings->at( i ), context );
}
mOffset = -mOffset;
}
}
