Merge remote-tracking branch 'remotes/origin/refactor-pipeline-concept' into development

application/campvis.cpp

@@ -28,24 +28,6 @@
 // ================================================================================================
 
 #include "application/campvisapplication.h"
-#include "modules/advancedusvis/pipelines/advancedusvis.h"
-#include "modules/advancedusvis/pipelines/cmbatchgeneration.h"
-#include "modules/vis/pipelines/ixpvdemo.h"
-#include "modules/vis/pipelines/dvrvis.h"
-#include "modules/vis/pipelines/volumerendererdemo.h"
-#include "modules/vis/pipelines/volumeexplorerdemo.h"
-#include "modules/vis/pipelines/slicevis.h"
-#ifdef HAS_KISSCL
-#include "modules/opencl/pipelines/openclpipeline.h"
-#endif
-
-#ifdef CAMPVIS_HAS_MODULE_SCR_MSK
-#include "modules/scr_msk/pipelines/uscompounding.h"
-#endif
-
-#ifdef CAMPVIS_HAS_MODULE_COLUMBIA
-#include "modules/columbia/pipelines/columbia1.h"
-#endif
 
 #ifdef Q_WS_X11
 #include <X11/Xlib.h>
@@ -66,27 +48,6 @@ int main(int argc, char** argv) {
     #endif
   
     CampVisApplication app(argc, argv);
-//     app.addVisualizationPipeline("Advanced Ultrasound Visualization", new AdvancedUsVis());
-//     app.addVisualizationPipeline("Confidence Map Generation", new CmBatchGeneration());
-//     app.addVisualizationPipeline("IXPV", new IxpvDemo());
-    app.addVisualizationPipeline("SliceVis", new SliceVis());
-//     app.addVisualizationPipeline("DVRVis", new DVRVis());
-//     app.addVisualizationPipeline("VolumeRendererDemo", new VolumeRendererDemo());
-    app.addVisualizationPipeline("VolumeExplorerDemo", new VolumeExplorerDemo());
-#ifdef HAS_KISSCL
-//     app.addVisualizationPipeline("DVR with OpenCL", new OpenCLPipeline());
-#endif
-
-#ifdef CAMPVIS_HAS_MODULE_SCR_MSK
-    app.addVisualizationPipeline("US Compounding", new UsCompounding());
-#endif
-
-#ifdef CAMPVIS_HAS_MODULE_COLUMBIA
-    app.addVisualizationPipeline("Columbia", new Columbia1());
-#endif
-
-
-
     app.init();
     int toReturn = app.run();
     app.deinit();

application/campvisapplication.cpp

@@ -47,9 +47,10 @@
 #include "application/gui/mainwindow.h"
 #include "core/tools/opengljobprocessor.h"
 #include "core/tools/simplejobprocessor.h"
+#include "core/tools/stringutils.h"
 #include "core/tools/quadrenderer.h"
 #include "core/pipeline/abstractpipeline.h"
-#include "core/pipeline/visualizationpipeline.h"
+#include "modules/pipelinefactory.h"
 
 namespace campvis {
 
@@ -78,17 +79,29 @@ namespace campvis {
         tgtAssert(_initialized == false, "Destructing initialized CampVisApplication, deinitialize first!");
 
         // delete everything in the right order:
-        for (std::vector< std::pair<VisualizationPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
+        for (std::vector< std::pair<AbstractPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
             delete it->second;
         }
         for (std::vector<AbstractPipeline*>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
             delete *it;
         }
+        for (std::vector<DataContainer*>::iterator it = _dataContainers.begin(); it != _dataContainers.end(); ++it) {
+            delete *it;
+        }
     }
 
     void CampVisApplication::init() {
         tgtAssert(_initialized == false, "Tried to initialize CampVisApplication twice.");
 
+        // parse argument list and create pipelines
+        QStringList pipelinesToAdd = this->arguments();
+        for (int i = 1; i < pipelinesToAdd.size(); ++i) {
+            DataContainer* dc = createAndAddDataContainer("DataContainer #" + StringUtils::toString(_dataContainers.size() + 1));
+            AbstractPipeline* p = PipelineFactory::getRef().createPipeline(pipelinesToAdd[i].toStdString(), dc);
+            if (p != 0)
+                addPipeline(pipelinesToAdd[i].toStdString(), p);
+        }
+
         // Init TGT
         tgt::InitFeature::Features featureset = tgt::InitFeature::ALL;
         tgt::init(featureset);
@@ -167,7 +180,7 @@ namespace campvis {
         }
 
         // Now init painters:
-        for (std::vector< std::pair<VisualizationPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
+        for (std::vector< std::pair<AbstractPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
             it->second->init();
         }
 
@@ -190,7 +203,7 @@ namespace campvis {
             }
 
             // Now deinit painters:
-            for (std::vector< std::pair<VisualizationPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
+            for (std::vector< std::pair<AbstractPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
                 it->second->deinit();
             }
 
@@ -235,33 +248,57 @@ namespace campvis {
         return toReturn;
     }
 
-    void CampVisApplication::addPipeline(AbstractPipeline* pipeline) {
-        tgtAssert(_initialized == false, "Adding pipelines after initialization is currently not supported.");
+    void CampVisApplication::addPipeline(const std::string& name, AbstractPipeline* pipeline) {
         tgtAssert(pipeline != 0, "Pipeline must not be 0.");
-        _pipelines.push_back(pipeline);
+
+        // if CAMPVis is already fully initialized, we need to temporarily shut down its
+        // OpenGL job processor, since we need to create a new context.
+        if (_initialized) {
+            GLJobProc.pause();
+            {
+                tgt::QtThreadedCanvas* canvas = CtxtMgr.createContext(name, "CAMPVis", tgt::ivec2(512, 512));
+                tgt::GLContextScopedLock lock(canvas->getContext());
+                addPipelineImpl(canvas, name, pipeline);
+            }
+            GLJobProc.resume();
+        }
+        else {
+            tgt::QtThreadedCanvas* canvas = CtxtMgr.createContext(name, "CAMPVis", tgt::ivec2(512, 512));
+            addPipelineImpl(canvas, name, pipeline);
+        }
 
         s_PipelinesChanged();
     }
 
-    void CampVisApplication::addVisualizationPipeline(const std::string& name, VisualizationPipeline* vp) {
-        tgtAssert(_initialized == false, "Adding pipelines after initialization is currently not supported.");
-        tgtAssert(vp != 0, "Pipeline must not be 0.");
-
-        // create canvas and painter for the VisPipeline and connect all together
-        tgt::QtThreadedCanvas* canvas = CtxtMgr.createContext(name, "CAMPVis", tgt::ivec2(512, 512));
+    void CampVisApplication::addPipelineImpl(tgt::QtThreadedCanvas* canvas, const std::string& name, AbstractPipeline* pipeline) {
+        // create canvas and painter for the pipeline and connect all together
+        
         GLJobProc.registerContext(canvas);
-        _mainWindow->addVisualizationPipelineWidget(name, canvas);
         canvas->init();
 
-        CampVisPainter* painter = new CampVisPainter(canvas, vp);
+        CampVisPainter* painter = new CampVisPainter(canvas, pipeline);
         canvas->setPainter(painter, false);
+        pipeline->setCanvas(canvas);
 
-        _visualizations.push_back(std::make_pair(vp, painter));
+        _visualizations.push_back(std::make_pair(pipeline, painter));
+        _pipelines.push_back(pipeline);
 
-        vp->setCanvas(canvas);
-        addPipeline(vp);
+        if (_initialized) {
+            LGL_ERROR;
+            pipeline->init();
+            LGL_ERROR;
+            painter->init();
+            LGL_ERROR;
+        }
 
         CtxtMgr.releaseCurrentContext();
+        _mainWindow->addVisualizationPipelineWidget(name, canvas);
+
+        // enable pipeline and invalidate all processors
+        pipeline->setEnabled(true);
+        for (std::vector<AbstractProcessor*>::const_iterator it = pipeline->getProcessors().begin(); it != pipeline->getProcessors().end(); ++it) {
+            (*it)->invalidate(AbstractProcessor::INVALID_RESULT);
+        }
     }
 
     void CampVisApplication::registerDockWidget(Qt::DockWidgetArea area, QDockWidget* dock) {
@@ -270,4 +307,12 @@ namespace campvis {
         _mainWindow->addDockWidget(area, dock);
     }
 
+    DataContainer* CampVisApplication::createAndAddDataContainer(const std::string& name) {
+        DataContainer* dc = new DataContainer(name);
+        _dataContainers.push_back(dc);
+        s_DataContainersChanged();
+        return dc;
+    }
+
+
 }

application/campvisapplication.h

@@ -38,6 +38,8 @@
 #include <utility>
 #include <vector>
 
+#include "core/datastructures/datacontainer.h"
+
 namespace tgt {
     class QtThreadedCanvas;
 }
@@ -46,7 +48,6 @@ namespace campvis {
     class AbstractPipeline;
     class MainWindow;
     class CampVisPainter;
-    class VisualizationPipeline;
 
     /**
      * The CampVisApplication class wraps Pipelines, Evaluators and Painters all together and takes
@@ -89,25 +90,14 @@ namespace campvis {
         void deinit();
 
         /**
-         * Adds a pipeline which doesn't need visualization (OpenGL) support.
-         * Each pipeline will automatically get its own evaluator.
-         * 
-         * \note    If you want to add a pipeline that needs a valid OpenGL context, use 
-         *          addVisualizationPipeline() instead.
-         * \param   pipeline    Pipeline to add, must not need OpenGL support.
-         */
-        void addPipeline(AbstractPipeline* pipeline);
-
-        /**
-         * Adds a visualization pipeline (i.e. a pipeline that needs a OpenGL context).
-         * For each added pipeline, an OpenGL context will be created (for the evaluation 
-         * and rendering).
+         * Adds a pipeline to this CAMPVis application.
+         * Each pipeline will automatically get its own OpenGL context, the corresponding CampvisPainter
+         * and all necessary connections will be created.
          * 
-         * \note    You do \b not need to call addPipeline.
          * \param   name    Name of the OpenGL context to create for the pipeline.
-         * \param   vp      VisualizationPipeline to add.
+         * \param   vp      AbstractPipeline to add.
          */
-        void addVisualizationPipeline(const std::string& name, VisualizationPipeline* vp);
+        void addPipeline(const std::string& name, AbstractPipeline* pipeline);
 
         /**
          * Adds a dock widget to the main window.
@@ -125,14 +115,30 @@ namespace campvis {
          */
         int run();
 
+
+        /**
+         * Creates a new DataContainer with the given name.
+         * \param   name    Name of the new DataContainer
+         * \return  The newly created DataContainer
+         */
+        DataContainer* createAndAddDataContainer(const std::string& name);
+
         /// Signal emitted when the collection of pipelines has changed.
         sigslot::signal0<> s_PipelinesChanged;
 
+        /// Signal emitted when the collection of DataContainers has changed.
+        sigslot::signal0<> s_DataContainersChanged;
+
     private:
-        /// All pipelines (incuding VisualizationPipelines)
+        void addPipelineImpl(tgt::QtThreadedCanvas* canvas, const std::string& name, AbstractPipeline* pipeline);
+
+        /// All pipelines 
         std::vector<AbstractPipeline*> _pipelines;
-        /// All visualisations (i.e. VisualizationPipelines with their corresponding painters/canvases)
-        std::vector< std::pair<VisualizationPipeline*, CampVisPainter*> > _visualizations;
+        /// All visualisations (i.e. Pipelines with their corresponding painters/canvases)
+        std::vector< std::pair<AbstractPipeline*, CampVisPainter*> > _visualizations;
+
+        /// All DataContainers
+        std::vector<DataContainer*> _dataContainers;
 
         /// A local OpenGL context used for initialization
         tgt::QtThreadedCanvas* _localContext;

application/campvispainter.cpp

@@ -41,7 +41,7 @@
 
 #include "core/datastructures/imagedata.h"
 #include "core/datastructures/renderdata.h"
-#include "core/pipeline/visualizationpipeline.h"
+#include "core/pipeline/abstractpipeline.h"
 #include "core/tools/job.h"
 #include "core/tools/opengljobprocessor.h"
 #include "core/tools/quadrenderer.h"
@@ -49,7 +49,7 @@
 namespace campvis {
     const std::string CampVisPainter::loggerCat_ = "CAMPVis.core.CampVisPainter";
 
-    CampVisPainter::CampVisPainter(tgt::GLCanvas* canvas, VisualizationPipeline* pipeline)
+    CampVisPainter::CampVisPainter(tgt::GLCanvas* canvas, AbstractPipeline* pipeline)
         : Runnable()
         , tgt::Painter(canvas)
         , _pipeline(0)
@@ -97,7 +97,7 @@ namespace campvis {
         glViewport(0, 0, size.x, size.y);
 
         // try get Data
-        DataContainer::ScopedTypedData<RenderData> rd(_pipeline->getDataContainer(), _pipeline->getRenderTargetID());
+        ScopedTypedData<RenderData> rd(_pipeline->getDataContainer(), _pipeline->getRenderTargetID());
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
         if (rd != 0) {
             // activate shader
@@ -175,7 +175,7 @@ namespace campvis {
         }
     }
 
-    void CampVisPainter::setPipeline(VisualizationPipeline* pipeline) {
+    void CampVisPainter::setPipeline(AbstractPipeline* pipeline) {
         tgtAssert(pipeline != 0, "The given pipeline must not be 0.");
         if (_pipeline != 0) {
             _pipeline->s_renderTargetChanged.disconnect(this);

application/campvispainter.h

@@ -44,16 +44,16 @@ namespace tgt {
 }
 
 namespace campvis {
-    class VisualizationPipeline;
+    class AbstractPipeline;
 
     /**
-     * Painter class for CAMPVis, rendering the render target of a VisualizationPipeline.
+     * Painter class for CAMPVis, rendering the render target of an AbstractPipeline.
      * This painter implements Runnable, hence, it runs in its own thread and the associated canvas
      * must be of type QtThreadedCanvas.
      * Rendering is implemented using condidional wait - hence the canvas is only updated when
      * \a pipeline emits the s_RenderTargetChanged signal.
      * 
-     * \sa  Runnable, VisualizationPipeline
+     * \sa  Runnable, AbstractPipeline
      */
     class CampVisPainter : public Runnable, public tgt::Painter, public sigslot::has_slots<> {
     public:
@@ -62,7 +62,7 @@ namespace campvis {
          * \param   canvas      Canvas to render on
          * \param   pipeline    Pipeline to render
          */
-        CampVisPainter(tgt::GLCanvas* canvas, VisualizationPipeline* pipeline);
+        CampVisPainter(tgt::GLCanvas* canvas, AbstractPipeline* pipeline);
 
         /**
          * Destructor, stops and waits for the rendering thread if it's still running.
@@ -106,7 +106,7 @@ namespace campvis {
          * Pipeline with the render target to render.
          * \param   pipeline    Pipeline to render
          */
-        void setPipeline(VisualizationPipeline* pipeline);
+        void setPipeline(AbstractPipeline* pipeline);
 
         /**
          * Slot being notified when the pipeline's render target changed.
@@ -121,7 +121,7 @@ namespace campvis {
 
         static const std::string loggerCat_;
 
-        VisualizationPipeline* _pipeline;                   ///< Pipeline to render
+        AbstractPipeline* _pipeline;                        ///< Pipeline to render
         tgt::Shader* _copyShader;                           ///< Shader for copying the render target to the framebuffer.
         tbb::atomic<bool> _dirty;                           ///< Flag whether render result is dirty and needs to be rerendered.
         std::condition_variable _renderCondition;           ///< conditional wait condition for rendering

application/gui/mainwindow.cpp

@@ -35,18 +35,25 @@
 #include "application/gui/datacontainerinspectorcanvas.h"
 #include "application/gui/qtdatahandle.h"
 #include "application/gui/visualizationpipelinewrapper.h"
+#include "core/datastructures/datacontainer.h"
 #include "core/pipeline/abstractpipeline.h"
 #include "core/pipeline/abstractprocessor.h"
+#include "core/tools/stringutils.h"
+#include "modules/pipelinefactory.h"
 
 #include <QMdiSubWindow>
 #include <QScrollBar>
 
+
 namespace campvis {
 
     MainWindow::MainWindow(CampVisApplication* application)
         : QMainWindow()
         , _application(application)
         , _mdiArea(0)
+        , _containerWidget(0)
+        , _cbPipelineFactory(0)
+        , _btnPipelineFactory(0)
         , _pipelineWidget(0)
         , _propCollectionWidget(0)
         , _dcInspectorWidget(0)
@@ -55,6 +62,7 @@ namespace campvis {
         , _btnShowDataContainerInspector(0)
         , _selectedPipeline(0)
         , _selectedProcessor(0)
+        , _selectedDataContainer(0)
         , _logViewer(0)
     {
         tgtAssert(_application != 0, "Application must not be 0.");
@@ -64,6 +72,7 @@ namespace campvis {
 
     MainWindow::~MainWindow() {
         _application->s_PipelinesChanged.disconnect(this);
+        _application->s_DataContainersChanged.disconnect(this);
         delete _dcInspectorWidget;
     }
 
@@ -81,9 +90,24 @@ namespace campvis {
         _mdiArea->tileSubWindows();
         setCentralWidget(_mdiArea);
 
+        _containerWidget = new QWidget(this);
+        QGridLayout* _cwLayout = new QGridLayout(_containerWidget);
+
+        _cbPipelineFactory = new QComboBox(_containerWidget);
+        std::vector<std::string> registeredPipelines = PipelineFactory::getRef().getRegisteredPipelines();
+        for (std::vector<std::string>::const_iterator it = registeredPipelines.begin(); it != registeredPipelines.end(); ++it)
+            _cbPipelineFactory->addItem(QString::fromStdString(*it));
+        _cwLayout->addWidget(_cbPipelineFactory, 0, 0);
+
+        _btnPipelineFactory = new QPushButton("Add Pipeline", _containerWidget);
+        _cwLayout->addWidget(_btnPipelineFactory, 0, 1);
+
         _pipelineWidget = new PipelineTreeWidget();
-        _pipelineWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
-        ui.pipelineTreeDock->setWidget(_pipelineWidget);
+        _containerWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
+        _cwLayout->addWidget(_pipelineWidget, 1, 0, 1, 2);
+
+        _containerWidget->setLayout(_cwLayout);
+        ui.pipelineTreeDock->setWidget(_containerWidget);
 
         _pipelinePropertiesScrollArea = new QScrollArea();
         _pipelinePropertiesScrollArea->setWidgetResizable(true);
@@ -115,8 +139,8 @@ namespace campvis {
         _dcInspectorWidget = new DataContainerInspectorWidget();
 
         connect(
-            this, SIGNAL(updatePipelineWidget(const std::vector<AbstractPipeline*>&)), 
-            _pipelineWidget, SLOT(update(const std::vector<AbstractPipeline*>&)));
+            this, SIGNAL(updatePipelineWidget(const std::vector<DataContainer*>&, const std::vector<AbstractPipeline*>&)), 
+            _pipelineWidget, SLOT(update(const std::vector<DataContainer*>&, const std::vector<AbstractPipeline*>&)));
         connect(
             _pipelineWidget, SIGNAL(clicked(const QModelIndex&)), 
             this, SLOT(onPipelineWidgetItemClicked(const QModelIndex&)));
@@ -129,7 +153,12 @@ namespace campvis {
         connect(
             _btnShowDataContainerInspector, SIGNAL(clicked()), 
             this, SLOT(onBtnShowDataContainerInspectorClicked()));
+        connect(
+            _btnPipelineFactory, SIGNAL(clicked()), 
+            this, SLOT(onBtnPipelineFactoryClicked()));
+
         _application->s_PipelinesChanged.connect(this, &MainWindow::onPipelinesChanged);
+        _application->s_DataContainersChanged.connect(this, &MainWindow::onDataContainersChanged);
     }
 
     bool MainWindow::eventFilter(QObject* watched, QEvent* event) {
@@ -142,38 +171,51 @@ namespace campvis {
     }
 
     void MainWindow::onPipelinesChanged() {
-        emit updatePipelineWidget(_application->_pipelines);
+        emit updatePipelineWidget(_application->_dataContainers, _application->_pipelines);
+    }
+
+    void MainWindow::onDataContainersChanged() {
+        emit updatePipelineWidget(_application->_dataContainers, _application->_pipelines);
     }
 
     void MainWindow::onPipelineWidgetItemClicked(const QModelIndex& index) {
         if (index.isValid()) {
             // Yak, this is so ugly - another reason why GUI programming sucks...
             QVariant item = index.data(Qt::UserRole);
-            HasPropertyCollection* ptr = static_cast<HasPropertyCollection*>(item.value<void*>());
+            if (item.isValid()) {
+                HasPropertyCollection* ptr = static_cast<HasPropertyCollection*>(item.value<void*>());
 
-            if (AbstractPipeline* pipeline = dynamic_cast<AbstractPipeline*>(ptr)) {
-            	_selectedPipeline = pipeline;
-                _selectedProcessor = 0;
-            }
-            else if (AbstractProcessor* processor = dynamic_cast<AbstractProcessor*>(ptr)) {
-                _selectedProcessor = processor;
-
-                QVariant parentItem = index.parent().data(Qt::UserRole);
-                HasPropertyCollection* pptr = static_cast<HasPropertyCollection*>(parentItem.value<void*>());
-                if (AbstractPipeline* pipeline = dynamic_cast<AbstractPipeline*>(pptr)) {
+                if (AbstractPipeline* pipeline = dynamic_cast<AbstractPipeline*>(ptr)) {
                     _selectedPipeline = pipeline;
+                    _selectedProcessor = 0;
+                    _selectedDataContainer = &pipeline->getDataContainer();
+                }
+                else if (AbstractProcessor* processor = dynamic_cast<AbstractProcessor*>(ptr)) {
+                    _selectedProcessor = processor;
+
+                    QVariant parentItem = index.parent().data(Qt::UserRole);
+                    HasPropertyCollection* pptr = static_cast<HasPropertyCollection*>(parentItem.value<void*>());
+                    if (AbstractPipeline* pipeline = dynamic_cast<AbstractPipeline*>(pptr)) {
+                        _selectedPipeline = pipeline;
+                        _selectedDataContainer = &pipeline->getDataContainer();
+                    }
                 }
-            }
 
-            emit updatePropCollectionWidget(ptr, &_selectedPipeline->getDataContainer());
+                emit updatePropCollectionWidget(ptr, &_selectedPipeline->getDataContainer());
+            }
+            else {
+                emit updatePropCollectionWidget(0, 0);
+                _selectedDataContainer = 0;
+            }
         }
         else {
             emit updatePropCollectionWidget(0, 0);
+            _selectedDataContainer = 0;
         }
     }
 
     QSize MainWindow::sizeHint() const {
-        return QSize(800, 450);
+        return QSize(1000, 600);
     }
 
     void MainWindow::onBtnExecuteClicked() {
@@ -239,4 +281,14 @@ namespace campvis {
         return dockWidget;
     }
 
+    void MainWindow::onBtnPipelineFactoryClicked() {
+        std::string name = this->_cbPipelineFactory->currentText().toStdString();
+        DataContainer* dc = _selectedDataContainer;
+        if (dc == 0) {
+            dc = _application->createAndAddDataContainer("DataContainer #" + StringUtils::toString(_application->_dataContainers.size() + 1));
+        }
+        AbstractPipeline* p = PipelineFactory::getRef().createPipeline(name, dc);
+        _application->addPipeline(name, p);
+    }
+
 }

application/gui/mainwindow.h

@@ -42,6 +42,7 @@
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QPushButton>
+#include <QComboBox>
 #include <QMdiArea>
 #include <QScrollArea>
 #include <vector>
@@ -80,11 +81,6 @@ namespace campvis {
          */
         void deinit();
 
-        /**
-         * Slot to be called by the application when its collection of pipelines has changed.
-         */
-        void onPipelinesChanged();
-
         /**
          * Size hint for the default window size
          * \return QSize(800, 450)
@@ -108,7 +104,8 @@ namespace campvis {
 
     signals:
         /// Qt signal for updating the PipelineWidget.
-        void updatePipelineWidget(const std::vector<AbstractPipeline*>&);
+        void updatePipelineWidget(const std::vector<DataContainer*>&, const std::vector<AbstractPipeline*>&);
+
         /// Qt signal for updating the PropertyCollectionWidget
         void updatePropCollectionWidget(HasPropertyCollection*, DataContainer*);
 
@@ -129,7 +126,22 @@ namespace campvis {
          */
         void onBtnShowDataContainerInspectorClicked();
 
+        /// Slot to be called when _btnPipelineFactory was clicked;
+        void onBtnPipelineFactoryClicked();
+
     private:
+
+        /**
+         * Slot to be called by the application when its collection of pipelines has changed.
+         */
+        void onPipelinesChanged();
+
+        /**
+         * Slot to be called by the application when its collection of DataContainers has changed.
+         */
+        void onDataContainersChanged();
+
+
         /**
          * Setup Qt GUI stuff
          */
@@ -152,6 +164,9 @@ namespace campvis {
         CampVisApplication* _application;                    ///< Pointer to the application hosting the whole stuff
 
         QMdiArea* _mdiArea;                                 ///< MDI area (the window's central widget)
+        QWidget* _containerWidget;                          ///< Widget to manage the app's DataContainers and pipelines
+        QComboBox* _cbPipelineFactory;                      ///< Combobox for selecting the Pipelines from the PipelineFactory
+        QPushButton* _btnPipelineFactory;                   ///< Button to add a Pipeline from the factory
         PipelineTreeWidget* _pipelineWidget;                ///< Widget for browsing the active pipelines
         QWidget* _pipelinePropertiesWidget;                 ///< Widget showing the selected pipeline's properties
         QScrollArea* _pipelinePropertiesScrollArea;         ///< Scroll area for _pipelinePropertiesWidget
@@ -164,6 +179,8 @@ namespace campvis {
 
         AbstractPipeline* _selectedPipeline;                ///< currently selected pipeline
         AbstractProcessor* _selectedProcessor;              ///< currently selected processor
+        DataContainer* _selectedDataContainer;              ///< currently selected DataContainer
+
         LogViewerWidget* _logViewer;                        ///< Widget displaying log messages
         std::vector<QDockWidget*> _primaryDocks;            ///< Docks located in top docking area of the main window
     };

application/gui/pipelinetreewidget.cpp

@@ -45,6 +45,38 @@ namespace campvis {
 
 // = TreeModel items ==============================================================================
 
+    DataContainerTreeItem::DataContainerTreeItem(DataContainer* dc, TreeItem* parent)
+        : TreeItem(parent)
+        , _dataContainer(dc)
+    {
+        tgtAssert(_dataContainer != 0, "Pipeline must not be 0.");
+    }
+