/*========================================================================= Program: ParaView Module: pqComparativeRenderView.cxx Copyright (c) 2005-2008 Sandia Corporation, Kitware Inc. All rights reserved. ParaView is a free software; you can redistribute it and/or modify it under the terms of the ParaView license version 1.2. See License_v1.2.txt for the full ParaView license. A copy of this license can be obtained by contacting Kitware Inc. 28 Corporate Drive Clifton Park, NY 12065 USA THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ========================================================================*/ #include "pqComparativeRenderView.h" // Server Manager Includes. #include "pqQVTKWidget.h" #include "vtkCollection.h" #include "vtkEventQtSlotConnect.h" #include "vtkImageData.h" #include "vtkNew.h" #include "vtkPVServerInformation.h" #include "vtkSMAnimationSceneImageWriter.h" #include "vtkSmartPointer.h" #include "vtkSMComparativeViewProxy.h" #include "vtkSMPropertyHelper.h" #include "vtkSMRenderViewProxy.h" // Qt Includes. #include #include #include #include // ParaView Includes. #include "pqServer.h" #include "pqSMAdaptor.h" class pqComparativeRenderView::pqInternal { public: QMap > RenderWidgets; vtkSmartPointer VTKConnect; pqInternal() { this->VTKConnect = vtkSmartPointer::New(); } }; //----------------------------------------------------------------------------- pqComparativeRenderView::pqComparativeRenderView( const QString& group, const QString& name, vtkSMViewProxy* viewProxy, pqServer* server, QObject* _parent): Superclass(comparativeRenderViewType(), group, name, viewProxy, server, _parent) { this->Internal = new pqInternal(); this->Internal->VTKConnect->Connect( viewProxy, vtkCommand::ConfigureEvent, this, SLOT(updateViewWidgets())); } //----------------------------------------------------------------------------- pqComparativeRenderView::~pqComparativeRenderView() { foreach (pqQVTKWidget* wdg, this->Internal->RenderWidgets.values()) { delete wdg; } delete this->Internal; } //----------------------------------------------------------------------------- QWidget* pqComparativeRenderView::createWidget() { QWidget* container = new QWidget(); this->updateViewWidgets(container); return container; } //----------------------------------------------------------------------------- vtkSMComparativeViewProxy* pqComparativeRenderView::getComparativeRenderViewProxy() const { return vtkSMComparativeViewProxy::SafeDownCast(this->getProxy()); } //----------------------------------------------------------------------------- vtkSMRenderViewProxy* pqComparativeRenderView::getRenderViewProxy() const { return vtkSMRenderViewProxy::SafeDownCast( this->getComparativeRenderViewProxy()->GetRootView()); } //----------------------------------------------------------------------------- void pqComparativeRenderView::updateViewWidgets( QWidget* container/*=NULL*/) { // Create QVTKWidgets for new view modules and destroy old ones. vtkNew currentViews; vtkSMComparativeViewProxy* compView = vtkSMComparativeViewProxy::SafeDownCast( this->getProxy()); compView->GetViews(currentViews.GetPointer()); QSet currentViewsSet; currentViews->InitTraversal(); vtkSMViewProxy* temp = vtkSMViewProxy::SafeDownCast( currentViews->GetNextItemAsObject()); for (; temp !=0; temp = vtkSMViewProxy::SafeDownCast(currentViews->GetNextItemAsObject())) { currentViewsSet.insert(temp); } QSet oldViews = QSet::fromList( this->Internal->RenderWidgets.keys()); QSet removed = oldViews - currentViewsSet; QSet added = currentViewsSet - oldViews; // Destroy old QVTKWidgets widgets. foreach (vtkSMViewProxy* key, removed) { pqQVTKWidget* item = this->Internal->RenderWidgets.take(key); delete item; } // Create QVTKWidgets for new ones. foreach (vtkSMViewProxy* key, added) { vtkSMRenderViewProxy* renView = vtkSMRenderViewProxy::SafeDownCast(key); renView->UpdateVTKObjects(); pqQVTKWidget* wdg = new pqQVTKWidget(); wdg->SetRenderWindow(renView->GetRenderWindow()); renView->SetupInteractor(wdg->GetInteractor()); wdg->setSession(compView->GetSession()); wdg->installEventFilter(this); wdg->setContextMenuPolicy(Qt::NoContextMenu); this->Internal->RenderWidgets[key] = wdg; } // Now layout the views. int dimensions[2]; vtkSMPropertyHelper(compView, "Dimensions").Get(dimensions, 2); if (vtkSMPropertyHelper(compView, "OverlayAllComparisons").GetAsInt() !=0) { dimensions[0] = dimensions[1] = 1; } // destroy the old layout and create a new one. container = container? container : this->widget(); delete container->layout(); QGridLayout* layout = new QGridLayout(container); layout->setSpacing(1); layout->setMargin(0); for (int x=0; x < dimensions[0]; x++) { for (int y=0; y < dimensions[1]; y++) { int index = y*dimensions[0]+x; vtkSMViewProxy* view = vtkSMViewProxy::SafeDownCast( currentViews->GetItemAsObject(index)); pqQVTKWidget* vtkwidget = this->Internal->RenderWidgets[view]; layout->addWidget(vtkwidget, y, x); } } } //----------------------------------------------------------------------------- // This method adjusts the extent of a vtkImageData // using the image's array dimensions and a given top left // coordinate to start from. void adjustImageExtent(vtkImageData * image, int topLeftX, int topLeftY) { int extent[6]; int dimensions[3]; image->GetDimensions(dimensions); extent[0] = topLeftX; extent[1] = topLeftX+dimensions[0]-1; extent[2] = topLeftY; extent[3] = topLeftY+dimensions[1]-1; extent[4] = extent[5] = 0; image->SetExtent(extent); } //----------------------------------------------------------------------------- vtkImageData* pqComparativeRenderView::captureImage(int magnification) { if (!this->widget()->isVisible()) { // Don't return any image when the view is not visible. return NULL; } // This method will capture the rendered image from each // internal view and combine them together to create the final image. QList images; // Get the collection of view proxies int dimensions[2]; vtkSMComparativeViewProxy* compView = this->getComparativeRenderViewProxy(); vtkCollection* currentViews = vtkCollection::New(); compView->GetViews(currentViews); vtkSMPropertyHelper( compView, "Dimensions").Get(dimensions, 2); if (vtkSMPropertyHelper(compView, "OverlayAllComparisons").GetAsInt() !=0) { dimensions[0] = dimensions[1] = 1; } int imageSize[3]; int finalImageSize[2] = {0, 0}; // For each view proxy... for (int y=0; y < dimensions[1]; y++) { // reset x component to zero when starting a new row finalImageSize[0] = 0; for (int x=0; x < dimensions[0]; x++) { int index = y*dimensions[0]+x; vtkSMRenderViewProxy* view = vtkSMRenderViewProxy::SafeDownCast( currentViews->GetItemAsObject(index)); if (view) { // There seems to be a bug where offscreen rendering // does not work with comparative view screenshots, so we // will force offscreen rendering off... FIXME! vtkSMPropertyHelper(view, "UseOffscreenRenderingForScreenshots").Set(0); // Capture the image vtkImageData * image = view->CaptureWindow(magnification); // There is a bug where the cloned views do not correctly // track their own view position (and therefore extent), // so for now we'll manually adjust their extent information. adjustImageExtent(image, finalImageSize[0], finalImageSize[1]); image->GetDimensions(imageSize); finalImageSize[0] += imageSize[0]; // Append the image to the list images.append(image); } } finalImageSize[1] += imageSize[1]; } // Allocate final image data vtkImageData * finalImage = vtkImageData::New(); finalImage->SetDimensions(finalImageSize[0], finalImageSize[1], 1); finalImage->AllocateScalars(VTK_UNSIGNED_CHAR, 3); // Append all images together foreach (vtkImageData * image, images) { vtkSMAnimationSceneImageWriter::Merge(finalImage, image); image->Delete(); } // Update final image extent based on view position and magnification int viewPosition[2]; int extentFinal[6]; vtkSMPropertyHelper(this->getRenderViewProxy(), "ViewPosition").Get(viewPosition, 2); finalImage->GetExtent(extentFinal); for (int cc=0; cc < 4; cc++) { extentFinal[cc] += viewPosition[cc/2]*magnification; } finalImage->SetExtent(extentFinal); // Clean up views collection currentViews->Delete(); return finalImage; }