Fixed GeometryTransferFunctionEditors trying to initialize their OpenGL...

Fixed GeometryTransferFunctionEditors trying to initialize their OpenGL contexts from non OpenGL thread.

application/gui/properties/geometry1dtransferfunctioneditor.cpp

@@ -243,9 +243,9 @@ namespace campvis {
         _layout->addWidget(lblOpacityBottom, 3, 0, 1, 1, Qt::AlignRight);
 
         _canvas = new tgt::QtThreadedCanvas("", tgt::ivec2(256, 128), tgt::GLCanvas::RGBA_BUFFER, 0, false);
-        tgt::GlContextManager::getRef().registerContextAndInitGlew(_canvas);
-
         GLJobProc.registerContext(_canvas);
+        GLJobProc.enqueueJob(_canvas, makeJobOnHeap<tgt::GlContextManager, tgt::GLCanvas*>(tgt::GlContextManager::getPtr(), &tgt::GlContextManager::registerContextAndInitGlew, _canvas), OpenGLJobProcessor::SerialJob);
+
         _canvas->setPainter(this, false);
         _layout->addWidget(_canvas, 1, 1, 3, 3);
 
@@ -256,7 +256,7 @@ namespace campvis {
         _lblIntensityRight = new QLabel(QString::number(gtf->getIntensityDomain().y), this);
         _layout->addWidget(_lblIntensityRight, 4, 3, 1, 1, Qt::AlignRight);
 
-        QVBoxLayout* buttonLayout = new QVBoxLayout(); // TODO: check whether buttonLayout will be deleted by Qt's GC!
+        QVBoxLayout* buttonLayout = new QVBoxLayout();
         _layout->addLayout(buttonLayout, 1, 4, 1, 3, Qt::AlignTop);
 
         _btnAddGeometry = new QPushButton(tr("Add Geometry"), this);

application/gui/properties/geometry2dtransferfunctioneditor.cpp

@@ -227,9 +227,9 @@ namespace campvis {
         _layout->addWidget(lblOpacityBottom, 3, 0, 1, 1, Qt::AlignRight);
 
         _canvas = new tgt::QtThreadedCanvas("", tgt::ivec2(256, 128), tgt::GLCanvas::RGBA_BUFFER, 0, false);
-        tgt::GlContextManager::getRef().registerContextAndInitGlew(_canvas);
-
         GLJobProc.registerContext(_canvas);
+        GLJobProc.enqueueJob(_canvas, makeJobOnHeap<tgt::GlContextManager, tgt::GLCanvas*>(tgt::GlContextManager::getPtr(), &tgt::GlContextManager::registerContextAndInitGlew, _canvas), OpenGLJobProcessor::SerialJob);
+
         _canvas->setPainter(this, false);
         _layout->addWidget(_canvas, 1, 1, 3, 3);