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testqgslegendrenderer.cpp
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/***************************************************************************
testqgslegendrenderer.cpp
---------------------
begin : July 2014
copyright : (C) 2014 by Martin Dobias
email : wonder dot sk at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgstest.h"
#include <QObject>
#include <QJsonArray>
#include "qgsapplication.h"
#include "qgscategorizedsymbolrenderer.h"
#include "qgsdatadefinedsizelegend.h"
#include "qgseffectstack.h"
#include "qgsfillsymbollayer.h"
#include "qgsfontutils.h"
#include "qgsgloweffect.h"
#include "qgslayertree.h"
#include "qgslayertreeutils.h"
#include "qgslayertreemodel.h"
#include "qgslayertreemodellegendnode.h"
#include "qgslayertreefiltersettings.h"
#include "qgslinesymbollayer.h"
#include "qgsmaplayerlegend.h"
#include "qgspainteffect.h"
#include "qgsproject.h"
#include "qgslegendrenderer.h"
#include "qgsrasterlayer.h"
#include "qgsshadoweffect.h"
#include "qgssinglesymbolrenderer.h"
#include "qgsvectorlayer.h"
#include "qgsvectordataprovider.h"
#include "qgsgeometry.h"
#include "qgsdiagramrenderer.h"
#include "qgspalettedrasterrenderer.h"
#include "diagram/qgspiediagram.h"
#include "qgspropertytransformer.h"
#include "qgsrulebasedlabeling.h"
#include "qgslinesymbol.h"
#include "qgsmarkersymbol.h"
#include "qgsfillsymbol.h"
static void _setStandardTestFont( QgsLegendSettings &settings, const QString &style = QStringLiteral( "Roman" ) )
{
for ( const QgsLegendStyle::Style st :
{
QgsLegendStyle::Title,
QgsLegendStyle::Group,
QgsLegendStyle::Subgroup,
QgsLegendStyle::SymbolLabel
} )
{
QFont font( QgsFontUtils::getStandardTestFont( style ) );
QgsTextFormat f = settings.rstyle( st ).textFormat();
f.setFont( font );
settings.rstyle( st ).setTextFormat( f );
}
}
static QImage _base64ToImage( const QString &base64 )
{
const QByteArray bytearray = QByteArray::fromBase64( base64.toStdString().c_str() );
return QImage::fromData( bytearray, "PNG" );
}
static QImage _renderLegend( QgsLayerTreeModel *legendModel, QgsLegendSettings &settings )
{
settings.setTitle( QStringLiteral( "Legend" ) );
QgsLegendRenderer legendRenderer( legendModel, settings );
const QSizeF size = legendRenderer.minimumSize();
const int dpi = 96;
const qreal dpmm = dpi / 25.4;
const QSize s( size.width() * dpmm, size.height() * dpmm );
// qDebug() << QStringLiteral( "testName:%1 size=%2x%3 dpmm=%4 s=%5x%6" ).arg( testName ).arg( size.width() ).arg( size.height() ).arg( dpmm ).arg( s.width() ).arg( s.height() );
QImage img( s, QImage::Format_ARGB32_Premultiplied );
img.fill( Qt::white );
QPainter painter( &img );
painter.setRenderHint( QPainter::Antialiasing, true );
QgsRenderContext context = QgsRenderContext::fromQPainter( &painter );
context.setTextRenderFormat( Qgis::TextRenderFormat::AlwaysText );
context.setFlag( Qgis::RenderContextFlag::ApplyScalingWorkaroundForTextRendering, true );
{
const QgsScopedRenderContextScaleToMm scaleToMm( context );
context.setRendererScale( 1000 );
context.setMapToPixel( QgsMapToPixel( 1 / ( 0.1 * context.scaleFactor() ) ) );
legendRenderer.drawLegend( context );
}
painter.end();
return img;
}
static QJsonObject _renderJsonLegend( QgsLayerTreeModel *legendModel, const QgsLegendSettings &settings )
{
QgsLegendRenderer legendRenderer( legendModel, settings );
QgsRenderContext context;
context.setFlag( Qgis::RenderContextFlag::Antialiasing, true );
return legendRenderer.exportLegendToJson( context );
}
class TestRasterRenderer : public QgsPalettedRasterRenderer
{
public:
TestRasterRenderer( QgsRasterInterface *input, int bandNumber, const ClassData &classes )
: QgsPalettedRasterRenderer( input, bandNumber, classes )
{}
// don't create the default legend nodes for this layer!
QList<QgsLayerTreeModelLegendNode *> createLegendNodes( QgsLayerTreeLayer *nodeLayer ) override
{
QList<QgsLayerTreeModelLegendNode *> res;
const QList< QPair< QString, QColor > > items = legendSymbologyItems();
res.reserve( res.size() + items.size() );
for ( const QPair< QString, QColor > &item : items )
{
res << new QgsRasterSymbolLegendNode( nodeLayer, item.second, item.first );
}
return res;
}
};
class TestQgsLegendRenderer : public QgsTest
{
Q_OBJECT
public:
TestQgsLegendRenderer() : QgsTest( QStringLiteral( "Legend Renderer Tests" ),
QStringLiteral( "legend" ) ) {}
private slots:
void initTestCase();// will be called before the first testfunction is executed.
void cleanupTestCase();// will be called after the last testfunction was executed.
void init();// will be called before each testfunction is executed.
void cleanup();// will be called after every testfunction.
void testModel();
void testBasic();
void testMultiline();
void testOverrideSize();
void testSpacing();
void testEffects();
void testBigMarker();
void testBigMarkerMaxSize();
void testOverrideSymbol();
void testRightAlignText();
void testCenterAlignText();
void testLeftAlignTextRightAlignSymbol();
void testCenterAlignTextRightAlignSymbol();
void testRightAlignTextRightAlignSymbol();
void testGroupHeadingSpacing();
void testGroupIndentSetup();
void testGroupIndentDefault();
void testGroupIndentRS();
void testGroupIndentRT();
void testGroupIndentRSRT();
void testMapUnits();
void testTallSymbol();
void testLineSpacing();
void testLongSymbolText();
void testThreeColumns();
void testFilterByMap();
void testFilterByMapSameSymbol();
void testColumns_data();
void testColumns();
void testColumnBreaks();
void testColumnBreaks2();
void testColumnBreaks3();
void testColumnBreaks4();
void testColumnBreaks5();
void testLayerColumnSplittingAlwaysAllow();
void testLayerColumnSplittingAlwaysPrevent();
void testRasterStroke();
void testFilterByPolygon();
void testFilterByExpression();
void testFilterByExpressionWithContext();
void testDiagramAttributeLegend();
void testDiagramSizeLegend();
void testDataDefinedSizeCollapsed();
void testTextOnSymbol();
void testColumnsMixedSymbolSize();
void testBasicJson();
void testOpacityJson();
void testBigMarkerJson();
void testLabelLegend();
private:
QgsLayerTree *mRoot = nullptr;
QgsVectorLayer *mVL1 = nullptr ; // line
QgsVectorLayer *mVL2 = nullptr ; // polygon
QgsVectorLayer *mVL3 = nullptr ; // point
QgsRasterLayer *mRL = nullptr;
bool _testLegendColumns( int itemCount, int columnCount, const QString &testName, double symbolSpacing );
bool _verifyImage( const QImage &image, const QString &testName, int diff = 30 )
{
return QGSIMAGECHECK( testName, testName, image, QString(), diff, QSize( 6, 10 ) );
}
};
void TestQgsLegendRenderer::initTestCase()
{
QgsApplication::init();
QgsApplication::initQgis();
}
void TestQgsLegendRenderer::cleanupTestCase()
{
QgsApplication::exitQgis();
}
void TestQgsLegendRenderer::init()
{
mVL1 = new QgsVectorLayer( QStringLiteral( "LineString" ), QStringLiteral( "Line Layer" ), QStringLiteral( "memory" ) );
QgsProject::instance()->addMapLayer( mVL1 );
QgsLineSymbol *sym1 = new QgsLineSymbol();
sym1->setColor( Qt::magenta );
mVL1->setRenderer( new QgsSingleSymbolRenderer( sym1 ) );
mVL2 = new QgsVectorLayer( QStringLiteral( "Polygon" ), QStringLiteral( "Polygon Layer" ), QStringLiteral( "memory" ) );
QgsProject::instance()->addMapLayer( mVL2 );
QgsFillSymbol *sym2 = new QgsFillSymbol();
sym2->setColor( Qt::cyan );
mVL2->setRenderer( new QgsSingleSymbolRenderer( sym2 ) );
mVL3 = new QgsVectorLayer( QStringLiteral( "Point" ), QStringLiteral( "Point Layer" ), QStringLiteral( "memory" ) );
{
QgsVectorDataProvider *pr = mVL3->dataProvider();
QList<QgsField> attrs;
attrs << QgsField( QStringLiteral( "test_attr" ), QVariant::Int );
pr->addAttributes( attrs );
QgsFields fields;
fields.append( attrs.back() );
QList<QgsFeature> features;
QgsFeature f1( fields, 1 );
f1.setAttribute( 0, 1 );
const QgsGeometry f1G = QgsGeometry::fromPointXY( QgsPointXY( 1.0, 1.0 ) );
f1.setGeometry( f1G );
QgsFeature f2( fields, 2 );
f2.setAttribute( 0, 2 );
const QgsGeometry f2G = QgsGeometry::fromPointXY( QgsPointXY( 9.0, 1.0 ) );
f2.setGeometry( f2G );
QgsFeature f3( fields, 3 );
f3.setAttribute( 0, 3 );
const QgsGeometry f3G = QgsGeometry::fromPointXY( QgsPointXY( 5.0, 5.0 ) ) ;
f3.setGeometry( f3G );
features << f1 << f2 << f3;
pr->addFeatures( features );
mVL3->updateFields();
}
QgsProject::instance()->addMapLayer( mVL3 );
static const char RASTER_ARRAY[] = { 1, 2, 2, 1 };
const QString rasterUri = QStringLiteral( "MEM:::DATAPOINTER=%1,PIXELS=2,LINES=2" ).arg( ( qulonglong ) RASTER_ARRAY );
mRL = new QgsRasterLayer( rasterUri, QStringLiteral( "Raster Layer" ), QStringLiteral( "gdal" ) );
std::unique_ptr< TestRasterRenderer > rasterRenderer( new TestRasterRenderer( mRL->dataProvider(), 1,
{
QgsPalettedRasterRenderer::Class( 1, QColor( 0, 0, 0 ), QStringLiteral( "1" ) ),
QgsPalettedRasterRenderer::Class( 2, QColor( 255, 255, 255 ), QStringLiteral( "2" ) )
} ) );
mRL->setRenderer( rasterRenderer.release() );
QgsProject::instance()->addMapLayer( mRL );
QgsCategoryList cats;
QgsMarkerSymbol *sym3_1 = new QgsMarkerSymbol();
sym3_1->setColor( Qt::red );
cats << QgsRendererCategory( 1, sym3_1, QStringLiteral( "Red" ) );
QgsMarkerSymbol *sym3_2 = new QgsMarkerSymbol();
sym3_2->setColor( Qt::green );
cats << QgsRendererCategory( 2, sym3_2, QStringLiteral( "Green" ) );
QgsMarkerSymbol *sym3_3 = new QgsMarkerSymbol();
sym3_3->setColor( Qt::blue );
cats << QgsRendererCategory( 3, sym3_3, QStringLiteral( "Blue" ) );
QgsCategorizedSymbolRenderer *r3 = new QgsCategorizedSymbolRenderer( QStringLiteral( "test_attr" ), cats );
mVL3->setRenderer( r3 );
mRoot = new QgsLayerTree();
QgsLayerTreeGroup *grp1 = mRoot->addGroup( QStringLiteral( "Line + Polygon" ) );
grp1->addLayer( mVL1 );
grp1->addLayer( mVL2 );
mRoot->addLayer( mVL3 );
mRoot->addLayer( mRL );
}
void TestQgsLegendRenderer::cleanup()
{
delete mRoot;
mRoot = nullptr;
QgsProject::instance()->removeAllMapLayers();
}
void TestQgsLegendRenderer::testModel()
{
QgsLayerTreeModel legendModel( mRoot );
QgsLayerTreeNode *nodeGroup0 = mRoot->children().at( 0 );
QVERIFY( nodeGroup0 );
QgsLayerTreeNode *nodeLayer0 = nodeGroup0->children().at( 0 );
QVERIFY( QgsLayerTree::isLayer( nodeLayer0 ) );
const QModelIndex idx = legendModel.node2index( nodeLayer0 );
QVERIFY( idx.isValid() );
QgsLayerTreeLayer *nodeVL1 = QgsLayerTree::toLayer( nodeLayer0 );
QVERIFY( nodeVL1 );
QList<QgsLayerTreeModelLegendNode *> lstNodes = legendModel.layerLegendNodes( nodeVL1 );
QVERIFY( lstNodes.count() == 1 );
QCOMPARE( lstNodes[0]->data( Qt::DisplayRole ).toString(), QString( "Line Layer" ) );
// set user text
QgsMapLayerLegendUtils::setLegendNodeUserLabel( nodeVL1, 0, QStringLiteral( "Hurray" ) );
legendModel.refreshLayerLegend( nodeVL1 );
QList<QgsLayerTreeModelLegendNode *> lstNodes2 = legendModel.layerLegendNodes( nodeVL1 );
QCOMPARE( lstNodes2[0]->data( Qt::DisplayRole ).toString(), QString( "Hurray" ) );
// reset user text
QgsMapLayerLegendUtils::setLegendNodeUserLabel( nodeVL1, 0, QString() );
}
void TestQgsLegendRenderer::testBasic()
{
const QString testName = QStringLiteral( "legend_basic" );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testMultiline()
{
const QString testName = QStringLiteral( "legend_multiline" );
QgsLayerTreeModel legendModel( mRoot );
legendModel.findLegendNode( mVL1->id(), QString() );
QgsLayerTreeLayer *layer = legendModel.rootGroup()->findLayer( mVL1 );
layer->setCustomProperty( QStringLiteral( "legend/title-label" ), QStringLiteral( "some legend text\nwith newline\ncharacters in it" ) );
QgsLayerTreeModelLegendNode *embeddedNode = legendModel.legendNodeEmbeddedInParent( layer );
embeddedNode->setUserLabel( QString() );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testOverrideSize()
{
const QString testName = QStringLiteral( "legend_override_size" );
QgsLayerTreeModel legendModel( mRoot );
legendModel.findLegendNode( mVL1->id(), QString() );
QgsLayerTreeLayer *layer = legendModel.rootGroup()->findLayer( mVL1 );
layer->setPatchSize( QSizeF( 30, 0 ) );
QgsLayerTreeModelLegendNode *embeddedNode = legendModel.legendNodeEmbeddedInParent( layer );
embeddedNode->setUserLabel( QString() );
layer = legendModel.rootGroup()->findLayer( mVL3 );
QgsMapLayerLegendUtils::setLegendNodeSymbolSize( layer, 1, QSizeF( 0, 30 ) );
legendModel.refreshLayerLegend( layer );
layer = legendModel.rootGroup()->findLayer( mRL );
QgsMapLayerLegendUtils::setLegendNodeSymbolSize( layer, 0, QSizeF( 50, 30 ) );
legendModel.refreshLayerLegend( layer );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testSpacing()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setMargin( QgsLegendStyle::Left, 7 );
settings.rstyle( QgsLegendStyle::Subgroup ).setMargin( QgsLegendStyle::Left, 11 );
settings.rstyle( QgsLegendStyle::Symbol ).setMargin( QgsLegendStyle::Left, 5 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignLeft );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_left_align_side_space" ) ) );
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignRight );
settings.setSymbolAlignment( Qt::AlignRight );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_right_align_side_space" ) ) );
}
void TestQgsLegendRenderer::testEffects()
{
const QString testName = QStringLiteral( "legend_effects" );
QgsEffectStack *effect = new QgsEffectStack();
QgsSingleSymbolRenderer *renderer;
QgsSymbol *symbol;
renderer = dynamic_cast<QgsSingleSymbolRenderer *>( mVL1->renderer() );
QVERIFY( renderer );
symbol = renderer->symbol();
QgsSimpleLineSymbolLayer *lineLayer = dynamic_cast<QgsSimpleLineSymbolLayer *>( symbol->symbolLayer( 0 ) );
QVERIFY( lineLayer );
lineLayer->setWidth( 1.8 );
lineLayer->setColor( Qt::cyan );
effect = new QgsEffectStack();
effect->appendEffect( new QgsDropShadowEffect() );
effect->appendEffect( new QgsDrawSourceEffect() );
lineLayer->setPaintEffect( effect );
renderer = dynamic_cast<QgsSingleSymbolRenderer *>( mVL2->renderer() );
symbol = renderer->symbol();
QVERIFY( renderer );
QgsSimpleFillSymbolLayer *fillLayer = dynamic_cast<QgsSimpleFillSymbolLayer *>( symbol->takeSymbolLayer( 0 ) );
QVERIFY( fillLayer );
fillLayer->setColor( Qt::blue );
effect = new QgsEffectStack();
effect->appendEffect( new QgsDrawSourceEffect() );
effect->appendEffect( new QgsInnerGlowEffect() );
fillLayer->setPaintEffect( effect );
lineLayer = new QgsSimpleLineSymbolLayer();
lineLayer->setColor( Qt::cyan );
lineLayer->setWidth( 1.8 );
effect = new QgsEffectStack();
effect->appendEffect( new QgsDropShadowEffect() );
effect->appendEffect( new QgsDrawSourceEffect() );
lineLayer->setPaintEffect( effect );
symbol->appendSymbolLayer( lineLayer );
symbol->appendSymbolLayer( fillLayer );
symbol = new QgsMarkerSymbol();
symbol->setColor( Qt::black );
effect = new QgsEffectStack();
effect->appendEffect( new QgsDropShadowEffect() );
effect->appendEffect( new QgsDrawSourceEffect() );
symbol->symbolLayer( 0 )->setPaintEffect( effect );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, symbol );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testBigMarker()
{
const QString testName = QStringLiteral( "legend_big_marker" );
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
//dynamic_cast<QgsCategorizedSymbolRenderer*>( mVL3->renderer() )->updateCategoryLabel( 2, "This is a long symbol label" );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testBigMarkerMaxSize()
{
const QString testName = QStringLiteral( "legend_big_marker_max_size" );
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.setMaximumSymbolSize( 5 ); //restrict maximum size to 5 mm
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testOverrideSymbol()
{
const QString testName = QStringLiteral( "legend_override_symbol" );
QgsLayerTreeModel legendModel( mRoot );
QgsLayerTreeLayer *layer = legendModel.rootGroup()->findLayer( mVL2 );
std::unique_ptr< QgsFillSymbol > sym2 = std::make_unique< QgsFillSymbol >();
sym2->setColor( Qt::red );
QgsLayerTreeModelLegendNode *embeddedNode = legendModel.legendNodeEmbeddedInParent( layer );
qgis::down_cast< QgsSymbolLegendNode * >( embeddedNode )->setCustomSymbol( sym2.release() );
std::unique_ptr< QgsMarkerSymbol > sym3 = std::make_unique< QgsMarkerSymbol >();
sym3->setColor( QColor( 0, 150, 0 ) );
sym3->setSize( 6 );
layer = legendModel.rootGroup()->findLayer( mVL3 );
QgsMapLayerLegendUtils::setLegendNodeCustomSymbol( layer, 1, sym3.get() );
legendModel.refreshLayerLegend( layer );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
const QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testCenterAlignText()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignHCenter );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignHCenter );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignHCenter );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_center_align_text" ) ) );
settings.setColumnCount( 2 );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_two_cols_center_align_text" ) ) );
}
void TestQgsLegendRenderer::testLeftAlignTextRightAlignSymbol()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignLeft );
settings.setSymbolAlignment( Qt::AlignRight );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_right_symbol_left_align_text" ) ) );
settings.setColumnCount( 2 );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_two_cols_right_align_symbol_left_align_text" ) ) );
}
void TestQgsLegendRenderer::testCenterAlignTextRightAlignSymbol()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignHCenter );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignHCenter );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignHCenter );
settings.setSymbolAlignment( Qt::AlignRight );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_right_symbol_center_align_text" ) ) );
settings.setColumnCount( 2 );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_two_cols_right_align_symbol_center_align_text" ) ) );
}
void TestQgsLegendRenderer::testRightAlignTextRightAlignSymbol()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignRight );
settings.setSymbolAlignment( Qt::AlignRight );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_right_symbol_right_align_text" ) ) );
settings.setColumnCount( 2 );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_two_cols_right_align_symbol_right_align_text" ) ) );
}
void TestQgsLegendRenderer::testGroupHeadingSpacing()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setMargin( QgsLegendStyle::Top, 5 );
settings.rstyle( QgsLegendStyle::Group ).setMargin( QgsLegendStyle::Bottom, 17 );
settings.rstyle( QgsLegendStyle::Subgroup ).setMargin( QgsLegendStyle::Top, 13 );
settings.rstyle( QgsLegendStyle::Subgroup ).setMargin( QgsLegendStyle::Bottom, 9 );
settings.setSymbolAlignment( Qt::AlignRight );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_group_heading_spacing" ) ) );
}
void TestQgsLegendRenderer::testGroupIndentSetup()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
QgsLayerTreeGroup *grp2 = mRoot->addGroup( QStringLiteral( "Subgroup" ) );
grp2->setCustomProperty( QStringLiteral( "legend/title-style" ), QLatin1String( "subgroup" ) );
for ( int i = 1; i <= 4; ++i )
{
QgsVectorLayer *vl = new QgsVectorLayer( QStringLiteral( "Polygon" ), QStringLiteral( "Layer %1" ).arg( i ), QStringLiteral( "memory" ) );
QgsProject::instance()->addMapLayer( vl );
vl->setRenderer( new QgsSingleSymbolRenderer( sym->clone() ) );
grp2->addLayer( vl );
}
}
void TestQgsLegendRenderer::testGroupIndentDefault()
{
testGroupIndentSetup();
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setIndent( 10 );
settings.rstyle( QgsLegendStyle::Subgroup ).setIndent( 5 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_group_indent" ) ) );
}
void TestQgsLegendRenderer::testGroupIndentRT()
{
testGroupIndentSetup();
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setIndent( 10 );
settings.rstyle( QgsLegendStyle::Subgroup ).setIndent( 5 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignRight );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_group_indent_right_align_text" ) ) );
}
void TestQgsLegendRenderer::testGroupIndentRS()
{
testGroupIndentSetup();
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setIndent( 10 );
settings.rstyle( QgsLegendStyle::Subgroup ).setIndent( 5 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignLeft );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignLeft );
settings.setSymbolAlignment( Qt::AlignRight );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_group_indent_right_align_symbol" ) ) );
}
void TestQgsLegendRenderer::testGroupIndentRSRT()
{
testGroupIndentSetup();
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setIndent( 10 );
settings.rstyle( QgsLegendStyle::Subgroup ).setIndent( 5 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignRight );
settings.setSymbolAlignment( Qt::AlignRight );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_group_indent_right_align_symbol_right_align_text" ) ) );
}
void TestQgsLegendRenderer::testRightAlignText()
{
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( sym->size() * 6 );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.rstyle( QgsLegendStyle::Group ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::Subgroup ).setAlignment( Qt::AlignRight );
settings.rstyle( QgsLegendStyle::SymbolLabel ).setAlignment( Qt::AlignRight );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_right_align_text" ) ) );
settings.setColumnCount( 2 );
res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, QStringLiteral( "legend_two_cols_right_align_text" ) ) );
}
void TestQgsLegendRenderer::testMapUnits()
{
const QString testName = QStringLiteral( "legend_mapunits" );
QgsMarkerSymbol *sym = new QgsMarkerSymbol();
sym->setColor( Qt::red );
sym->setSize( 100 );
sym->setSizeUnit( Qgis::RenderUnit::MapUnits );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategorySymbol( 0, sym );
sym = new QgsMarkerSymbol();
sym->setColor( Qt::green );
sym->setSize( 300 );
sym->setSizeUnit( Qgis::RenderUnit::MapUnits );
catRenderer->updateCategorySymbol( 1, sym );
sym = new QgsMarkerSymbol();
sym->setColor( Qt::blue );
sym->setSize( 5 );
sym->setSizeUnit( Qgis::RenderUnit::Millimeters );
catRenderer->updateCategorySymbol( 2, sym );
std::unique_ptr< QgsLayerTree > root( new QgsLayerTree() );
root->addLayer( mVL3 );
QgsLayerTreeModel legendModel( root.get() );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
Q_NOWARN_DEPRECATED_PUSH
// TODO QGIS 4.0 -- move these to parameters on _renderLegend, and set the render context to match
settings.setMmPerMapUnit( 0.1 );
settings.setMapScale( 1000 );
Q_NOWARN_DEPRECATED_POP
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testTallSymbol()
{
const QString testName = QStringLiteral( "legend_tall_symbol" );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategoryLabel( 1, QStringLiteral( "This is\nthree lines\nlong label" ) );
mVL2->setName( QStringLiteral( "This is a two lines\nlong label" ) );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.setWrapChar( QStringLiteral( "\n" ) );
settings.setSymbolSize( QSizeF( 10.0, 10.0 ) );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
mVL2->setName( QStringLiteral( "Polygon Layer" ) );
}
void TestQgsLegendRenderer::testLineSpacing()
{
const QString testName = QStringLiteral( "legend_line_spacing" );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategoryLabel( 1, QStringLiteral( "This is\nthree lines\nlong label" ) );
mVL2->setName( QStringLiteral( "This is a two lines\nlong label" ) );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.setWrapChar( QStringLiteral( "\n" ) );
Q_NOWARN_DEPRECATED_PUSH
settings.setLineSpacing( 3 );
Q_NOWARN_DEPRECATED_POP
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
mVL2->setName( QStringLiteral( "Polygon Layer" ) );
}
void TestQgsLegendRenderer::testLongSymbolText()
{
const QString testName = QStringLiteral( "legend_long_symbol_text" );
QgsCategorizedSymbolRenderer *catRenderer = dynamic_cast<QgsCategorizedSymbolRenderer *>( mVL3->renderer() );
QVERIFY( catRenderer );
catRenderer->updateCategoryLabel( 1, QStringLiteral( "This is\nthree lines\nlong label" ) );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.setWrapChar( QStringLiteral( "\n" ) );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testThreeColumns()
{
const QString testName = QStringLiteral( "legend_three_columns" );
QgsLayerTreeModel legendModel( mRoot );
QgsLegendSettings settings;
settings.setColumnCount( 3 );
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testFilterByMap()
{
const QString testName = QStringLiteral( "legend_filter_by_map" );
QgsLayerTreeModel legendModel( mRoot );
QgsMapSettings mapSettings;
// extent and size to include only the red and green points
mapSettings.setExtent( QgsRectangle( 0, 0, 10.0, 4.0 ) );
mapSettings.setOutputSize( QSize( 400, 100 ) );
mapSettings.setOutputDpi( 96 );
mapSettings.setLayers( QgsProject::instance()->mapLayers().values() );
QgsLayerTreeFilterSettings filterSettings( mapSettings );
legendModel.setFilterSettings( &filterSettings );
QgsLegendSettings settings;
_setStandardTestFont( settings, QStringLiteral( "Bold" ) );
QImage res = _renderLegend( &legendModel, settings );
QVERIFY( _verifyImage( res, testName ) );
}
void TestQgsLegendRenderer::testFilterByMapSameSymbol()
{
QgsVectorLayer *vl4 = new QgsVectorLayer( QStringLiteral( "Point" ), QStringLiteral( "Point Layer" ), QStringLiteral( "memory" ) );
{
QgsVectorDataProvider *pr = vl4->dataProvider();
QList<QgsField> attrs;
attrs << QgsField( QStringLiteral( "test_attr" ), QVariant::Int );
pr->addAttributes( attrs );
QgsFields fields;
fields.append( attrs.back() );
QList<QgsFeature> features;
QgsFeature f1( fields, 1 );
f1.setAttribute( 0, 1 );
const QgsGeometry f1G = QgsGeometry::fromPointXY( QgsPointXY( 1.0, 1.0 ) );
f1.setGeometry( f1G );
QgsFeature f2( fields, 2 );
f2.setAttribute( 0, 2 );
const QgsGeometry f2G = QgsGeometry::fromPointXY( QgsPointXY( 9.0, 1.0 ) );
f2.setGeometry( f2G );
QgsFeature f3( fields, 3 );
f3.setAttribute( 0, 3 );
const QgsGeometry f3G = QgsGeometry::fromPointXY( QgsPointXY( 5.0, 5.0 ) );
f3.setGeometry( f3G );
features << f1 << f2 << f3;
pr->addFeatures( features );
vl4->updateFields();
}
QgsProject::instance()->addMapLayer( vl4 );