void TestQgsSvgCache::changeImage()
{
bool inCache;
QgsSvgCache cache;
// no minimum time between checks
cache.mFileModifiedCheckTimeout = 0;
//copy an image to the temp folder
QString tempImagePath = QDir::tempPath() + "/svg_cache.svg";
QString originalImage = TEST_DATA_DIR + QStringLiteral( "/test_symbol_svg.svg" );
if ( QFileInfo::exists( tempImagePath ) )
QFile::remove( tempImagePath );
QFile::copy( originalImage, tempImagePath );
//render it through the cache
QImage img = cache.svgAsImage( tempImagePath, 200, QColor( 0, 0, 0 ), QColor( 0, 0, 0 ), 1.0,
1.0, inCache );
QVERIFY( imageCheck( "svgcache_changed_before", img, 30 ) );
// wait a second so that modified time is different
QElapsedTimer t;
t.start();
while ( !t.hasExpired( 1000 ) )
{}
//replace the image in the temp folder
QString newImage = TEST_DATA_DIR + QStringLiteral( "/test_symbol_svg2.svg" );
QFile::remove( tempImagePath );
QFile::copy( newImage, tempImagePath );
//re-render it
img = cache.svgAsImage( tempImagePath, 200, QColor( 0, 0, 0 ), QColor( 0, 0, 0 ), 1.0,
1.0, inCache );
QVERIFY( imageCheck( "svgcache_changed_after", img, 30 ) );
// repeat, with minimum time between checks
QgsSvgCache cache2;
QFile::remove( tempImagePath );
QFile::copy( originalImage, tempImagePath );
img = cache2.svgAsImage( tempImagePath, 200, QColor( 0, 0, 0 ), QColor( 0, 0, 0 ), 1.0,
1.0, inCache );
QVERIFY( imageCheck( "svgcache_changed_before", img, 30 ) );
// wait a second so that modified time is different
t.restart();
while ( !t.hasExpired( 1000 ) )
{}
//replace the image in the temp folder
QFile::remove( tempImagePath );
QFile::copy( newImage, tempImagePath );
//re-render it - not enough time has elapsed between checks, so file modification time will NOT be rechecked and
// existing cached image should be used
img = cache2.svgAsImage( tempImagePath, 200, QColor( 0, 0, 0 ), QColor( 0, 0, 0 ), 1.0,
1.0, inCache );
QVERIFY( imageCheck( "svgcache_changed_before", img, 30 ) );
}
void testPieDiagramExpression()
{
QgsDiagramSettings ds;
QColor col1 = Qt::red;
QColor col2 = Qt::yellow;
col1.setAlphaF( 0.5 );
col2.setAlphaF( 0.5 );
ds.categoryColors = QList<QColor>() << col1 << col2;
ds.categoryAttributes = QList<QString>() << "ln(Pilots + 1)" << "ln(\"Cabin Crew\" + 1)";
ds.maxScaleDenominator = -1;
ds.minScaleDenominator = -1;
ds.minimumSize = 0;
ds.penColor = Qt::green;
ds.penWidth = .5;
ds.scaleByArea = true;
ds.sizeType = QgsUnitTypes::RenderMillimeters;
ds.size = QSizeF( 5, 5 );
ds.angleOffset = 0;
QgsLinearlyInterpolatedDiagramRenderer *dr = new QgsLinearlyInterpolatedDiagramRenderer();
dr->setLowerValue( 0.0 );
dr->setLowerSize( QSizeF( 0.0, 0.0 ) );
dr->setUpperValue( 10 );
dr->setUpperSize( QSizeF( 40, 40 ) );
dr->setClassificationAttributeIsExpression( true );
dr->setClassificationAttributeExpression( "ln(Staff + 1)" );
dr->setDiagram( new QgsPieDiagram() );
dr->setDiagramSettings( ds );
QgsDiagramLayerSettings dls = QgsDiagramLayerSettings();
dls.setPlacement( QgsDiagramLayerSettings::OverPoint );
dls.setShowAllDiagrams( true );
// dls.setRenderer( dr );
mPointsLayer->setDiagramRenderer( dr );
mPointsLayer->setDiagramLayerSettings( dls );
QVERIFY( imageCheck( "piediagram_expression" ) );
mPointsLayer->setDiagramRenderer( 0 );
}
void testPieDiagram()
{
QgsDiagramSettings ds;
QColor col1 = Qt::red;
QColor col2 = Qt::yellow;
col1.setAlphaF( 0.5 );
col2.setAlphaF( 0.5 );
ds.categoryColors = QList<QColor>() << col1 << col2;
ds.categoryAttributes = QList<QString>() << "\"Pilots\"" << "\"Cabin Crew\"";
ds.maxScaleDenominator = -1;
ds.minScaleDenominator = -1;
ds.minimumSize = 0;
ds.penColor = Qt::green;
ds.penWidth = .5;
ds.scaleByArea = true;
ds.sizeType = QgsDiagramSettings::MM;
ds.size = QSizeF( 5, 5 );
ds.angleOffset = 0;
QgsLinearlyInterpolatedDiagramRenderer *dr = new QgsLinearlyInterpolatedDiagramRenderer();
dr->setLowerValue( 0.0 );
dr->setLowerSize( QSizeF( 0.0, 0.0 ) );
dr->setUpperValue( 10 );
dr->setUpperSize( QSizeF( 40, 40 ) );
dr->setClassificationAttribute( 5 ); // Staff
dr->setDiagram( new QgsPieDiagram() );
dr->setDiagramSettings( ds );
mPointsLayer->setDiagramRenderer( dr );
QgsDiagramLayerSettings dls = QgsDiagramLayerSettings();
dls.placement = QgsDiagramLayerSettings::OverPoint;
dls.showAll = true;
mPointsLayer->setDiagramLayerSettings( dls );
QVERIFY( imageCheck( "piediagram" ) );
}
