Add tests for composer item transparency and blending

qgis · Apr 30, 2013 · e19079d · e19079d
1 parent 6e90ba3
commit e19079d
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diff --git a/tests/src/core/CMakeLists.txt b/tests/src/core/CMakeLists.txt
@@ -101,6 +101,7 @@ ADD_QGIS_TEST(rulebasedrenderertest testqgsrulebasedrenderer.cpp)
 ADD_QGIS_TEST(ziplayertest testziplayer.cpp)
 ADD_QGIS_TEST(dataitemtest testqgsdataitem.cpp)
 ADD_QGIS_TEST(composermaptest testqgscomposermap.cpp)
+ADD_QGIS_TEST(composereffectstest testqgscomposereffects.cpp)
 ADD_QGIS_TEST(atlascompositiontest testqgsatlascomposition.cpp)
 ADD_QGIS_TEST(composerlabeltest testqgscomposerlabel.cpp)
 ADD_QGIS_TEST(stylev2test testqgsstylev2.cpp)

diff --git a/tests/src/core/testqgscomposereffects.cpp b/tests/src/core/testqgscomposereffects.cpp
@@ -0,0 +1,103 @@
+/***************************************************************************
+                         testqgscomposereffects.cpp
+                         ----------------------
+    begin                : April 2013
+    copyright            : (C) 2013 by Marco Hugentobler, Nyall Dawson
+    email                : nyall dot dawson at gmail.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 "qgsapplication.h"
+#include "qgscomposition.h"
+#include "qgscompositionchecker.h"
+#include "qgscomposershape.h"
+#include "qgsmaprenderer.h"
+#include <QObject>
+#include <QtTest>
+#include <QColor>
+#include <QPainter>
+
+class TestQgsComposerEffects: public QObject
+{
+    Q_OBJECT;
+  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 blend_modes(); //test if composer item blending is functioning
+    void transparency(); //test if composer transparency is functioning
+
+  private:
+    QgsComposition* mComposition;
+    QgsComposerShape* mComposerRect1;
+    QgsComposerShape* mComposerRect2;
+    QgsMapRenderer* mMapRenderer;
+};
+
+void TestQgsComposerEffects::initTestCase()
+{
+  QgsApplication::init();
+  QgsApplication::initQgis();
+
+  //create composition with two rectangles
+  mMapRenderer = new QgsMapRenderer();
+
+  mComposition = new QgsComposition( mMapRenderer );
+  mComposition->setPaperSize( 297, 210 ); //A4 landscape
+  mComposerRect1 = new QgsComposerShape( 20, 20, 150, 100, mComposition );
+  mComposerRect1->setShapeType( QgsComposerShape::Rectangle );
+  mComposerRect1->setBackgroundColor( QColor::fromRgb( 255, 150, 0 ) );
+  mComposition->addComposerShape( mComposerRect1 );
+  mComposerRect2 = new QgsComposerShape( 50, 50, 150, 100, mComposition );
+  mComposerRect2->setBackgroundColor( QColor::fromRgb( 0, 100, 150 ) );
+  mComposerRect2->setShapeType( QgsComposerShape::Rectangle );
+  mComposition->addComposerShape( mComposerRect2 );
+
+}
+
+void TestQgsComposerEffects::cleanupTestCase()
+{
+  delete mComposition;
+}
+
+void TestQgsComposerEffects::init()
+{
+
+}
+
+void TestQgsComposerEffects::cleanup()
+{
+
+}
+
+void TestQgsComposerEffects::blend_modes()
+{
+  mComposerRect2->setBlendMode( QPainter::CompositionMode_Multiply );
+
+  QgsCompositionChecker checker( "Composer effects blending", mComposition, QString( QString( TEST_DATA_DIR ) + QDir::separator() +
+                                 "control_images" + QDir::separator() + "expected_composereffects" + QDir::separator() + "composereffect_blend.png" ) );
+  QVERIFY( checker.testComposition() );
+  // reset blending
+  mComposerRect2->setBlendMode( QPainter::CompositionMode_SourceOver );
+}
+
+void TestQgsComposerEffects::transparency()
+{
+  mComposerRect2->setTransparency( 50 );
+
+  QgsCompositionChecker checker( "Composer item transparency", mComposition, QString( QString( TEST_DATA_DIR ) + QDir::separator() +
+                                 "control_images" + QDir::separator() + "expected_composereffects" + QDir::separator() + "composereffect_transparency.png" ) );
+  QVERIFY( checker.testComposition() );
+}
+
+QTEST_MAIN( TestQgsComposerEffects )
+#include "moc_testqgscomposereffects.cxx"
diff --git a/tests/testdata/control_images/expected_composereffects/composereffect_blend.png b/tests/testdata/control_images/expected_composereffects/composereffect_blend.png
diff --git a/...estdata/control_images/expected_composereffects/composereffect_transparency.png b/...estdata/control_images/expected_composereffects/composereffect_transparency.png