Add test for ctkVTKThresholdWidget

Libs/Visualization/VTK/Widgets/Testing/Cpp/CMakeLists.txt

@@ -9,6 +9,7 @@ SET(TEST_SOURCES
   ctkVTKMatrixWidgetTest1.cpp
   ctkVTKMagnifyViewTest1.cpp
   ctkVTKScalarBarWidgetTest1.cpp
+  ctkVTKThresholdWidgetTest1.cpp
   ctkTransferFunctionBarsItemTest1.cpp
   ctkTransferFunctionViewTest1.cpp
   ctkTransferFunctionViewTest2.cpp
@@ -93,6 +94,7 @@ SIMPLE_TEST( ctkVTKMagnifyViewTest1 )
 SIMPLE_TEST( ctkVTKMatrixWidgetTest1 )
 SIMPLE_TEST( ctkVTKScalarBarWidgetTest1 )
 SIMPLE_TEST( ctkVTKScalarsToColorsUtilsTest1 )
+SIMPLE_TEST( ctkVTKThresholdWidgetTest1 )
 SIMPLE_TEST( ctkTransferFunctionBarsItemTest1 )
 SIMPLE_TEST( ctkTransferFunctionViewTest1 )
 SIMPLE_TEST( ctkTransferFunctionViewTest2 )

Libs/Visualization/VTK/Widgets/Testing/Cpp/ctkVTKThresholdWidgetTest1.cpp

@@ -0,0 +1,93 @@
+/*=========================================================================
+
+  Library:   CTK
+
+  Copyright (c) Kitware Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0.txt
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+=========================================================================*/
+
+// QT includes
+#include <QApplication>
+#include <QTimer>
+
+// qMRML includes
+#include "ctkVTKScalarsToColorsView.h"
+#include "ctkVTKThresholdWidget.h"
+
+// VTK includes
+#include <vtkNew.h>
+#include <vtkPiecewiseFunction.h>
+
+// STD includes
+#include <cstdlib>
+#include <iostream>
+
+int ctkVTKThresholdWidgetTest1(int argc, char * argv [] )
+{
+  QApplication app(argc, argv);
+
+  vtkNew<vtkPiecewiseFunction> function;
+
+  ctkVTKThresholdWidget thresholdWidget;
+
+  thresholdWidget.setPiecewiseFunction(function.GetPointer());
+  if (thresholdWidget.piecewiseFunction() != function.GetPointer())
+    {
+    std::cerr << "ctkVTKThresholdWidget::setPiecewiseFunction() failed"
+              << std::endl;
+    return EXIT_FAILURE;
+    }
+
+  thresholdWidget.setRange(10., 20.);
+  double range[2];
+  thresholdWidget.range(range);
+  if (range[0] != 10. || range[1] != 20.)
+    {
+    std::cerr << "ctkVTKThresholdWidget::setRange() failed: "
+              << range[0] << " " << range[1] << std::endl;
+    return EXIT_FAILURE;
+    }
+
+  thresholdWidget.setOpacity(1.);
+  if (thresholdWidget.opacity() != 1.)
+    {
+    std::cerr << "ctkVTKThresholdWidget::setOpacity() failed: "
+              << thresholdWidget.opacity() << std::endl;
+    return EXIT_FAILURE;
+    }
+
+  thresholdWidget.setThresholdValues(11., 19.);
+  double values[2];
+  thresholdWidget.thresholdValues(values);
+  if (values[0] != 11. || values[1] != 19.)
+    {
+    std::cerr << "ctkVTKThresholdWidget::setThresholdValues() failed: "
+              << values[0] << " " << values[1] << std::endl;
+    return EXIT_FAILURE;
+    }
+
+  thresholdWidget.show();
+
+  ctkVTKScalarsToColorsView view;
+  view.addOpacityFunction(function.GetPointer());
+  view.show();
+
+  if (argc < 2 || QString(argv[1]) != "-I" )
+    {
+    QTimer::singleShot(200, &app, SLOT(quit()));
+    }
+
+  return app.exec();
+}