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| 1 | +/*************************************************************************** |
| 2 | + testqgslayeredsymbollevel.cpp |
| 3 | + -------------------------------------- |
| 4 | + Date : April 2016 |
| 5 | + Copyright : (C) 2016 by Nyall Dawson |
| 6 | + Email : nyall dot dawson at gmail dot com |
| 7 | + *************************************************************************** |
| 8 | + * * |
| 9 | + * This program is free software; you can redistribute it and/or modify * |
| 10 | + * it under the terms of the GNU General Public License as published by * |
| 11 | + * the Free Software Foundation; either version 2 of the License, or * |
| 12 | + * (at your option) any later version. * |
| 13 | + * * |
| 14 | + ***************************************************************************/ |
| 15 | +#include "qgstest.h" |
| 16 | +#include <QObject> |
| 17 | +#include <QString> |
| 18 | +#include <QStringList> |
| 19 | +#include <QApplication> |
| 20 | +#include <QFileInfo> |
| 21 | +#include <QDir> |
| 22 | +#include <QDesktopServices> |
| 23 | + |
| 24 | +//qgis includes... |
| 25 | +#include <qgsmapsettings.h> |
| 26 | +#include <qgsmaplayer.h> |
| 27 | +#include <qgsvectorlayer.h> |
| 28 | +#include <qgsapplication.h> |
| 29 | +#include <qgsproviderregistry.h> |
| 30 | +#include <qgsproject.h> |
| 31 | +#include <qgssinglesymbolrenderer.h> |
| 32 | +#include <qgsfeaturerequest.h> |
| 33 | +#include <qgslinesymbol.h> |
| 34 | +#include <qgslinesymbollayer.h> |
| 35 | +#include <qgssymbol.h> |
| 36 | +#include "qgslayoutitemmap.h" |
| 37 | +#include "qgsmultirenderchecker.h" |
| 38 | +#include "qgsexpressioncontextutils.h" |
| 39 | +#include "qgslayout.h" |
| 40 | + |
| 41 | +/** |
| 42 | + * \ingroup UnitTests |
| 43 | + * This is a unit test for layered symbol level rendering. |
| 44 | + */ |
| 45 | +class TestQgsLayeredSymbolLevel : public QgsTest |
| 46 | +{ |
| 47 | + Q_OBJECT |
| 48 | + public: |
| 49 | + TestQgsLayeredSymbolLevel() : QgsTest( QStringLiteral( "Layered Symbol Level Rendering Tests" ) ) {} |
| 50 | + |
| 51 | + private slots: |
| 52 | + void initTestCase();// will be called before the first testfunction is executed. |
| 53 | + void cleanupTestCase();// will be called after the last testfunction was executed. |
| 54 | + |
| 55 | + void render(); |
| 56 | + |
| 57 | + private: |
| 58 | + bool imageCheck( const QString &type ); |
| 59 | + QgsMapSettings mMapSettings; |
| 60 | + QgsVectorLayer *mpRoadsLayer = nullptr; |
| 61 | + QString mTestDataDir; |
| 62 | +}; |
| 63 | + |
| 64 | + |
| 65 | +void TestQgsLayeredSymbolLevel::initTestCase() |
| 66 | +{ |
| 67 | + // init QGIS's paths - true means that all path will be inited from prefix |
| 68 | + QgsApplication::init(); |
| 69 | + QgsApplication::initQgis(); |
| 70 | + QgsApplication::showSettings(); |
| 71 | + |
| 72 | + //create some objects that will be used in all tests... |
| 73 | + const QString myDataDir( TEST_DATA_DIR ); //defined in CmakeLists.txt |
| 74 | + mTestDataDir = myDataDir + '/'; |
| 75 | + |
| 76 | + // |
| 77 | + //create a roads layer that will be used in all tests... |
| 78 | + // |
| 79 | + const QString myRoadsFileName = mTestDataDir + "layered_roads.shp"; |
| 80 | + const QFileInfo myRoadsFileInfo( myRoadsFileName ); |
| 81 | + mpRoadsLayer = new QgsVectorLayer( myRoadsFileInfo.filePath(), |
| 82 | + myRoadsFileInfo.completeBaseName(), QStringLiteral( "ogr" ) ); |
| 83 | + |
| 84 | + QgsVectorSimplifyMethod simplifyMethod; |
| 85 | + simplifyMethod.setSimplifyHints( QgsVectorSimplifyMethod::NoSimplification ); |
| 86 | + mpRoadsLayer->setSimplifyMethod( simplifyMethod ); |
| 87 | + |
| 88 | + mMapSettings.setLayers( QList<QgsMapLayer *>() << mpRoadsLayer ); |
| 89 | + |
| 90 | +} |
| 91 | +void TestQgsLayeredSymbolLevel::cleanupTestCase() |
| 92 | +{ |
| 93 | + delete mpRoadsLayer; |
| 94 | + |
| 95 | + QgsApplication::exitQgis(); |
| 96 | +} |
| 97 | + |
| 98 | +void TestQgsLayeredSymbolLevel::render() |
| 99 | +{ |
| 100 | + QgsSimpleLineSymbolLayer *lineSymbolLayer0 = new QgsSimpleLineSymbolLayer; |
| 101 | + lineSymbolLayer0->setColor( Qt::black ); |
| 102 | + lineSymbolLayer0->setWidth( 3 ); |
| 103 | + |
| 104 | + QgsSimpleLineSymbolLayer *lineSymbolLayer1 = new QgsSimpleLineSymbolLayer; |
| 105 | + lineSymbolLayer1->setColor( Qt::yellow ); |
| 106 | + lineSymbolLayer1->setWidth( 2 ); |
| 107 | + |
| 108 | + QgsLineSymbol *lineSymbol = new QgsLineSymbol( QgsSymbolLayerList() << lineSymbolLayer0 << lineSymbolLayer1 ); |
| 109 | + |
| 110 | + QgsSingleSymbolRenderer *renderer = new QgsSingleSymbolRenderer( lineSymbol ); |
| 111 | + mpRoadsLayer->setRenderer( renderer ); |
| 112 | + |
| 113 | + renderer->setUsingSymbolLevels( true ); |
| 114 | + QVERIFY( imageCheck( "with_levels_no_layers" ) ); |
| 115 | + |
| 116 | + renderer->setOrderBy( QgsFeatureRequest::OrderBy() << QgsFeatureRequest::OrderByClause( "layer", false ) ); |
| 117 | + renderer->setOrderByEnabled( true ); |
| 118 | + QVERIFY( imageCheck( "with_levels_with_layers" ) ); |
| 119 | + |
| 120 | + renderer->setUsingSymbolLevels( false ); |
| 121 | + QVERIFY( imageCheck( "no_levels_with_layers" ) ); |
| 122 | +} |
| 123 | + |
| 124 | +bool TestQgsLayeredSymbolLevel::imageCheck( const QString &testType ) |
| 125 | +{ |
| 126 | + //use the QgsRenderChecker test utility class to |
| 127 | + //ensure the rendered output matches our control image |
| 128 | + mMapSettings.setExtent( mpRoadsLayer->extent() ); |
| 129 | + mMapSettings.setOutputSize( QSize( 400, 400 ) ); |
| 130 | + mMapSettings.setOutputDpi( 96 ); |
| 131 | + QgsExpressionContext context; |
| 132 | + context << QgsExpressionContextUtils::mapSettingsScope( mMapSettings ); |
| 133 | + mMapSettings.setExpressionContext( context ); |
| 134 | + QgsMultiRenderChecker myChecker; |
| 135 | + myChecker.setControlPathPrefix( QStringLiteral( "layered_symbol_levels" ) ); |
| 136 | + myChecker.setControlName( "expected_" + testType ); |
| 137 | + myChecker.setMapSettings( mMapSettings ); |
| 138 | + const bool myResultFlag = myChecker.runTest( testType, 0 ); |
| 139 | + mReport += myChecker.report(); |
| 140 | + return myResultFlag; |
| 141 | +} |
| 142 | + |
| 143 | +QGSTEST_MAIN( TestQgsLayeredSymbolLevel ) |
| 144 | +#include "testqgslayeredsymbollevel.moc" |
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