void testSnapModeAll()
{
QgsMapSettings mapSettings;
mapSettings.setOutputSize( QSize( 100, 100 ) );
mapSettings.setExtent( QgsRectangle( 0, 0, 1, 1 ) );
QVERIFY( mapSettings.hasValidSettings() );
QgsSnappingUtils u;
QgsSnappingConfig snappingConfig = u.config();
u.setMapSettings( mapSettings );
snappingConfig.setMode( QgsSnappingConfig::AllLayers );
u.setConfig( snappingConfig );
// right now there are no layers in map settings - snapping will fail
QgsPointLocator::Match m = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( !m.isValid() );
// now check with our layer
mapSettings.setLayers( QStringList() << mVL->id() );
u.setMapSettings( mapSettings );
QgsPointLocator::Match m2 = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( m2.isValid() );
QCOMPARE( m2.point(), QgsPoint( 1, 0 ) );
}
void testSnapOnIntersection()
{
// testing with a layer with two crossing linestrings
// (0,1) x x (1,1)
// \/
// /\ .
// (0,0) x x (1,0)
QgsVectorLayer* vl = new QgsVectorLayer( QStringLiteral( "LineString" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
QgsPolyline polyline1, polyline2;
polyline1 << QgsPoint( 0, 0 ) << QgsPoint( 1, 1 );
polyline2 << QgsPoint( 1, 0 ) << QgsPoint( 0, 1 );
QgsFeature f1;
QgsGeometry f1g = QgsGeometry::fromPolyline( polyline1 ) ;
f1.setGeometry( f1g );
QgsFeature f2;
QgsGeometry f2g = QgsGeometry::fromPolyline( polyline2 );
f2.setGeometry( f2g );
QgsFeatureList flist;
flist << f1 << f2;
vl->dataProvider()->addFeatures( flist );
QVERIFY( vl->dataProvider()->featureCount() == 2 );
QgsMapSettings mapSettings;
mapSettings.setOutputSize( QSize( 100, 100 ) );
mapSettings.setExtent( QgsRectangle( 0, 0, 1, 1 ) );
QVERIFY( mapSettings.hasValidSettings() );
QgsSnappingUtils u;
u.setMapSettings( mapSettings );
QgsSnappingConfig snappingConfig = u.config();
snappingConfig.setMode( QgsSnappingConfig::AdvancedConfiguration );
QgsSnappingConfig::IndividualLayerSettings layerSettings( true, QgsSnappingConfig::Vertex, 0.1, QgsTolerance::ProjectUnits );
snappingConfig.setIndividualLayerSettings( vl, layerSettings );
u.setConfig( snappingConfig );
// no snapping on intersections by default - should find nothing
QgsPointLocator::Match m = u.snapToMap( QgsPoint( 0.45, 0.5 ) );
QVERIFY( !m.isValid() );
snappingConfig.setIntersectionSnapping( true );
u.setConfig( snappingConfig );
QgsPointLocator::Match m2 = u.snapToMap( QgsPoint( 0.45, 0.5 ) );
QVERIFY( m2.isValid() );
QCOMPARE( m2.type(), QgsPointLocator::Vertex );
QCOMPARE( m2.point(), QgsPoint( 0.5, 0.5 ) );
delete vl;
}
void testSnapModeCurrent()
{
QgsMapSettings mapSettings;
mapSettings.setOutputSize( QSize( 100, 100 ) );
mapSettings.setExtent( QgsRectangle( 0, 0, 1, 1 ) );
QVERIFY( mapSettings.hasValidSettings() );
QgsSnappingUtils u;
u.setMapSettings( mapSettings );
u.setCurrentLayer( mVL );
// first try with no snapping enabled
QgsSnappingConfig snappingConfig = u.config();
snappingConfig.setEnabled( false );
snappingConfig.setTolerance( 10 );
snappingConfig.setUnits( QgsTolerance::Pixels );
snappingConfig.setMode( QgsSnappingConfig::ActiveLayer );
u.setConfig( snappingConfig );
QgsPointLocator::Match m0 = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( !m0.isValid() );
QVERIFY( !m0.hasVertex() );
// now enable snapping
snappingConfig.setEnabled( true );
snappingConfig.setType( QgsSnappingConfig::Vertex );
u.setConfig( snappingConfig );
QgsPointLocator::Match m = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( m.isValid() );
QVERIFY( m.hasVertex() );
QCOMPARE( m.point(), QgsPoint( 1, 0 ) );
QgsPointLocator::Match m2 = u.snapToMap( QPoint( 0, 100 ) );
QVERIFY( !m2.isValid() );
QVERIFY( !m2.hasVertex() );
// do not consider edges in the following test - on 32-bit platforms
// result was an edge match very close to (1,0) instead of being exactly (1,0)
snappingConfig.setType( QgsSnappingConfig::Vertex );
u.setConfig( snappingConfig );
// test with filtering
FilterExcludePoint myFilter( QgsPoint( 1, 0 ) );
QgsPointLocator::Match m3 = u.snapToMap( QPoint( 100, 100 ), &myFilter );
QVERIFY( !m3.isValid() );
}
QgsMapSettings QgsGlobeTileImage::createSettings( int dpi, const QList<QgsMapLayer *> &layers ) const
{
QgsMapSettings settings;
settings.setBackgroundColor( QColor( Qt::transparent ) );
settings.setDestinationCrs( QgsCoordinateReferenceSystem::fromOgcWmsCrs( GEO_EPSG_CRS_AUTHID ) );
settings.setExtent( mTileExtent );
settings.setLayers( layers );
settings.setFlag( QgsMapSettings::DrawEditingInfo, false );
settings.setFlag( QgsMapSettings::DrawLabeling, false );
settings.setFlag( QgsMapSettings::DrawSelection, false );
settings.setOutputSize( QSize( mTileSize, mTileSize ) );
settings.setOutputImageFormat( QImage::Format_ARGB32_Premultiplied );
settings.setOutputDpi( dpi );
settings.setCustomRenderFlags( "globe" );
return settings;
}
void QgsMeshCalcUtils::updateMesh() const
{
if ( ! mMeshLayer->nativeMesh() )
{
// we do not care about triangles,
// we just want transformed coordinates
// of the native mesh. So create
// some dummy triangular mesh.
QgsMapSettings mapSettings;
mapSettings.setExtent( mMeshLayer->extent() );
mapSettings.setDestinationCrs( mMeshLayer->crs() );
mapSettings.setOutputDpi( 96 );
QgsRenderContext context = QgsRenderContext::fromMapSettings( mapSettings );
mMeshLayer->createMapRenderer( context );
}
}
void QgsComposerLegend::paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget )
{
Q_UNUSED( itemStyle );
Q_UNUSED( pWidget );
if ( !painter )
return;
int dpi = painter->device()->logicalDpiX();
double dotsPerMM = dpi / 25.4;
if ( mComposition )
{
mSettings.setUseAdvancedEffects( mComposition->useAdvancedEffects() );
mSettings.setDpi( dpi );
}
if ( mComposerMap )
{
mSettings.setMmPerMapUnit( mComposerMap->mapUnitsToMM() );
// use a temporary QgsMapSettings to find out real map scale
QgsMapSettings ms = mComposerMap->composition()->mapSettings();
ms.setOutputSize( QSizeF( mComposerMap->rect().width() * dotsPerMM, mComposerMap->rect().height() * dotsPerMM ).toSize() );
ms.setExtent( *mComposerMap->currentMapExtent() );
ms.setOutputDpi( dpi );
mSettings.setMapScale( ms.scale() );
}
drawBackground( painter );
painter->save();
//antialiasing on
painter->setRenderHint( QPainter::Antialiasing, true );
painter->setPen( QPen( QColor( 0, 0, 0 ) ) );
QgsLegendRenderer legendRenderer( mLegendModel2, mSettings );
legendRenderer.setLegendSize( rect().size() );
legendRenderer.drawLegend( painter );
painter->restore();
//draw frame and selection boxes if necessary
drawFrame( painter );
if ( isSelected() )
{
drawSelectionBoxes( painter );
}
}
QgsMapSettings QgsGlobeTileImage::createSettings( int dpi , const QStringList &layerSet ) const
{
QgsMapSettings settings;
settings.setBackgroundColor( QColor( Qt::transparent ) );
settings.setDestinationCrs( QgsCRSCache::instance()->crsByAuthId( GEO_EPSG_CRS_AUTHID ) );
settings.setCrsTransformEnabled( true );
settings.setExtent( mTileExtent );
settings.setLayers( layerSet );
settings.setFlag( QgsMapSettings::DrawEditingInfo, false );
settings.setFlag( QgsMapSettings::DrawLabeling, false );
settings.setFlag( QgsMapSettings::DrawSelection, false );
settings.setMapUnits( QGis::Degrees );
settings.setOutputSize( QSize( mTileSize, mTileSize ) );
settings.setOutputImageFormat( QImage::Format_ARGB32_Premultiplied );
settings.setOutputDpi( dpi );
settings.setCustomRenderFlags( "globe" );
return settings;
}
void testSnapModeAdvanced()
{
QgsMapSettings mapSettings;
mapSettings.setOutputSize( QSize( 100, 100 ) );
mapSettings.setExtent( QgsRectangle( 0, 0, 1, 1 ) );
QVERIFY( mapSettings.hasValidSettings() );
QgsSnappingUtils u;
u.setMapSettings( mapSettings );
u.setSnapToMapMode( QgsSnappingUtils::SnapAdvanced );
QList<QgsSnappingUtils::LayerConfig> layers;
layers << QgsSnappingUtils::LayerConfig( mVL, QgsPointLocator::Vertex, 10, QgsTolerance::Pixels );
u.setLayers( layers );
QgsPointLocator::Match m = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( m.isValid() );
QVERIFY( m.hasVertex() );
QCOMPARE( m.point(), QgsPoint( 1, 0 ) );
// test with filtering
FilterExcludePoint myFilter( QgsPoint( 1, 0 ) );
QgsPointLocator::Match m2 = u.snapToMap( QPoint( 100, 100 ), &myFilter );
QVERIFY( !m2.isValid() );
}
void testSnapModeAdvanced()
{
QgsMapSettings mapSettings;
mapSettings.setOutputSize( QSize( 100, 100 ) );
mapSettings.setExtent( QgsRectangle( 0, 0, 1, 1 ) );
QVERIFY( mapSettings.hasValidSettings() );
QgsSnappingUtils u;
QgsSnappingConfig snappingConfig = u.config();
u.setMapSettings( mapSettings );
snappingConfig.setMode( QgsSnappingConfig::AdvancedConfiguration );
snappingConfig.setIndividualLayerSettings( mVL, QgsSnappingConfig::IndividualLayerSettings( true, QgsSnappingConfig::Vertex, 10, QgsTolerance::Pixels ) );
u.setConfig( snappingConfig );
QgsPointLocator::Match m = u.snapToMap( QPoint( 100, 100 ) );
QVERIFY( m.isValid() );
QVERIFY( m.hasVertex() );
QCOMPARE( m.point(), QgsPoint( 1, 0 ) );
// test with filtering
FilterExcludePoint myFilter( QgsPoint( 1, 0 ) );
QgsPointLocator::Match m2 = u.snapToMap( QPoint( 100, 100 ), &myFilter );
QVERIFY( !m2.isValid() );
}
void QgsComposerMapOverview::draw( QPainter *painter )
{
if ( !mEnabled || mFrameMapId == -1 || !mComposerMap || !mComposerMap->composition() )
{
return;
}
if ( !painter )
{
return;
}
const QgsComposerMap* overviewFrameMap = mComposerMap->composition()->getComposerMapById( mFrameMapId );
if ( !overviewFrameMap )
{
return;
}
//get polygon for other overview frame map's extent (use visibleExtentPolygon as it accounts for map rotation)
QPolygonF otherExtent = overviewFrameMap->visibleExtentPolygon();
//get current map's extent as a QPolygonF
QPolygonF thisExtent = mComposerMap->visibleExtentPolygon();
//intersect the two
QPolygonF intersectExtent = thisExtent.intersected( otherExtent );
//setup painter scaling to dots so that raster symbology is drawn to scale
double dotsPerMM = painter->device()->logicalDpiX() / 25.4;
//setup render context
QgsMapSettings ms = mComposerMap->composition()->mapSettings();
//context units should be in dots
ms.setOutputSize( QSizeF( mComposerMap->rect().width() * dotsPerMM, mComposerMap->rect().height() * dotsPerMM ).toSize() );
ms.setExtent( *mComposerMap->currentMapExtent() );
ms.setOutputDpi( painter->device()->logicalDpiX() );
QgsRenderContext context = QgsRenderContext::fromMapSettings( ms );
context.setForceVectorOutput( true );
context.setPainter( painter );
QgsExpressionContext* expressionContext = createExpressionContext();
context.setExpressionContext( *expressionContext );
delete expressionContext;
painter->save();
painter->setCompositionMode( mBlendMode );
painter->translate( mComposerMap->mXOffset, mComposerMap->mYOffset );
painter->scale( 1 / dotsPerMM, 1 / dotsPerMM ); // scale painter from mm to dots
painter->setRenderHint( QPainter::Antialiasing );
mFrameSymbol->startRender( context );
//construct a polygon corresponding to the intersecting map extent
//need to scale line to dots, rather then mm, since the painter has been scaled to dots
QTransform mapTransform;
QPolygonF thisRectPoly = QPolygonF( QRectF( 0, 0, dotsPerMM * mComposerMap->rect().width(), dotsPerMM * mComposerMap->rect().height() ) );
//workaround QT Bug #21329
thisRectPoly.pop_back();
thisExtent.pop_back();
//create transform from map coordinates to painter coordinates
QTransform::quadToQuad( thisExtent, thisRectPoly, mapTransform );
QPolygonF intersectPolygon;
intersectPolygon = mapTransform.map( intersectExtent );
QList<QPolygonF> rings; //empty list
if ( !mInverted )
{
//Render the intersecting map extent
mFrameSymbol->renderPolygon( intersectPolygon, &rings, nullptr, context );
}
else
{
//We are inverting the overview frame (ie, shading outside the intersecting extent)
//Construct a polygon corresponding to the overview map extent
QPolygonF outerPolygon;
outerPolygon << QPointF( 0, 0 )
<< QPointF( mComposerMap->rect().width() * dotsPerMM, 0 )
<< QPointF( mComposerMap->rect().width() * dotsPerMM, mComposerMap->rect().height() * dotsPerMM )
<< QPointF( 0, mComposerMap->rect().height() * dotsPerMM )
<< QPointF( 0, 0 );
//Intersecting extent is an inner ring for the shaded area
rings.append( intersectPolygon );
mFrameSymbol->renderPolygon( outerPolygon, &rings, nullptr, context );
}
mFrameSymbol->stopRender( context );
painter->restore();
}
void QgsComposerLegend::paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget )
{
Q_UNUSED( itemStyle );
Q_UNUSED( pWidget );
if ( !painter )
return;
if ( !shouldDrawItem() )
{
return;
}
if ( mFilterAskedForUpdate )
{
mFilterAskedForUpdate = false;
doUpdateFilterByMap();
}
int dpi = painter->device()->logicalDpiX();
double dotsPerMM = dpi / 25.4;
if ( mComposition )
{
mSettings.setUseAdvancedEffects( mComposition->useAdvancedEffects() );
mSettings.setDpi( dpi );
}
if ( mComposerMap )
{
mSettings.setMmPerMapUnit( mComposerMap->mapUnitsToMM() );
// use a temporary QgsMapSettings to find out real map scale
QgsMapSettings ms = mComposerMap->composition()->mapSettings();
ms.setOutputSize( QSizeF( mComposerMap->rect().width() * dotsPerMM, mComposerMap->rect().height() * dotsPerMM ).toSize() );
ms.setExtent( *mComposerMap->currentMapExtent() );
ms.setOutputDpi( dpi );
mSettings.setMapScale( ms.scale() );
}
drawBackground( painter );
painter->save();
//antialiasing on
painter->setRenderHint( QPainter::Antialiasing, true );
painter->setPen( QPen( QColor( 0, 0, 0 ) ) );
QgsLegendRenderer legendRenderer( mLegendModel2, mSettings );
legendRenderer.setLegendSize( rect().size() );
//adjust box if width or height is too small
QSizeF size = legendRenderer.minimumSize();
if ( size.height() > rect().height() || size.width() > rect().width() )
{
//need to resize box
QRectF targetRect = QRectF( pos().x(), pos().y(), rect().width(), rect().height() );
if ( size.height() > targetRect.height() )
targetRect.setHeight( size.height() );
if ( size.width() > rect().width() )
targetRect.setWidth( size.width() );
//set new rect, respecting position mode and data defined size/position
setSceneRect( evalItemRect( targetRect, true ) );
}
legendRenderer.drawLegend( painter );
painter->restore();
//draw frame and selection boxes if necessary
drawFrame( painter );
if ( isSelected() )
{
drawSelectionBoxes( painter );
}
}
