void QgsFillSymbolLayerV2::drawPreviewIcon( QgsSymbolV2RenderContext& context, QSize size )
{
QPolygonF poly = QRectF( QPointF( 0, 0 ), QPointF( size.width(), size.height() ) );
startRender( context );
renderPolygon( poly, NULL, context );
stopRender( context );
}
//static
void LLVertexBuffer::cleanupClass()
{
LLMemType mt(LLMemType::MTYPE_VERTEX_DATA);
sLockedList.clear();
startRender();
stopRender();
clientCopy(); // deletes GL buffers
}
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 );
}
bool wyDirector::pause() {
if(m_paused || m_glView == NULL)
return false;
// set flag
m_paused = true;
// stop render
stopRender();
// notify
notifyDirectorPaused();
return true;
}
void QgsMarkerSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
startRender( context );
QgsPaintEffect *effect = paintEffect();
if ( effect && effect->enabled() )
{
QgsEffectPainter p( context.renderContext(), effect );
renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
}
else
{
renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
}
stopRender( context );
}
void QgsFillSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
QPolygonF poly = QRectF( QPointF( 0, 0 ), QPointF( size.width(), size.height() ) );
startRender( context );
QgsPaintEffect *effect = paintEffect();
if ( effect && effect->enabled() )
{
QgsEffectPainter p( context.renderContext(), effect );
renderPolygon( poly, nullptr, context );
}
else
{
renderPolygon( poly, nullptr, 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 );
}
QImage QgsSymbolV2::bigSymbolPreviewImage()
{
QImage preview( QSize( 100, 100 ), QImage::Format_ARGB32_Premultiplied );
preview.fill( 0 );
QPainter p( &preview );
p.setRenderHint( QPainter::Antialiasing );
p.translate( 0.5, 0.5 ); // shift by half a pixel to avoid blurring due antialising
if ( mType == QgsSymbolV2::Marker )
{
p.setPen( QPen( Qt::gray ) );
p.drawLine( 0, 50, 100, 50 );
p.drawLine( 50, 0, 50, 100 );
}
QgsRenderContext context = QgsSymbolLayerV2Utils::createRenderContext( &p );
startRender( context );
if ( mType == QgsSymbolV2::Line )
{
QPolygonF poly;
poly << QPointF( 0, 50 ) << QPointF( 99, 50 );
static_cast<QgsLineSymbolV2*>( this )->renderPolyline( poly, 0, context );
}
else if ( mType == QgsSymbolV2::Fill )
{
QPolygonF polygon;
polygon << QPointF( 20, 20 ) << QPointF( 80, 20 ) << QPointF( 80, 80 ) << QPointF( 20, 80 ) << QPointF( 20, 20 );
static_cast<QgsFillSymbolV2*>( this )->renderPolygon( polygon, NULL, 0, context );
}
else // marker
{
static_cast<QgsMarkerSymbolV2*>( this )->renderPoint( QPointF( 50, 50 ), 0, context );
}
stopRender( context );
return preview;
}
void QgsMarkerSymbolLayerV2::drawPreviewIcon( QgsSymbolV2RenderContext& context, QSize size )
{
startRender( context );
renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
stopRender( context );
}