vv/vvCropDialog.cxx

   1 /*=========================================================================
   2   Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv
   3
   4   Authors belong to:
   5   - University of LYON              http://www.universite-lyon.fr/
   6   - Léon Bérard cancer center       http://www.centreleonberard.fr
   7   - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr
   8
   9   This software is distributed WITHOUT ANY WARRANTY; without even
  10   the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  11   PURPOSE.  See the copyright notices for more information.
  12
  13   It is distributed under dual licence
  14
  15   - BSD        See included LICENSE.txt file
  16   - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  17 ===========================================================================**/
  18 #include <QComboBox>
  19 #include <QCursor>
  20 #include <QApplication>
  21 #include <vtkImageClip.h>
  22 #include <vtkImageTranslateExtent.h>
  23 #include <vtkImageData.h>
  24 #include <vtkSmartPointer.h>
  25 #include "vvCropDialog.h"
  26 #include "vvSlicerManager.h"
  27 #include "clitkCommon.h"
  28
  29 vvCropDialog::vvCropDialog(std::vector<vvSlicerManager*> sms,int current) :
  30   mSlicerManagers(sms)
  31 {
  32   setupUi(this);
  33   for (unsigned int i=0; i<mSlicerManagers.size(); i++)
  34     inputSequenceBox->addItem(vtksys::SystemTools::GetFilenameName(mSlicerManagers[i]->GetFileName()).c_str());
  35   connect(inputSequenceBox,SIGNAL(currentIndexChanged(int)),this,SLOT(ImageChanged(int)));
  36   inputSequenceBox->setCurrentIndex(current);
  37   ImageChanged(current);
  38   connect(this,SIGNAL(accepted()),this,SLOT(ComputeCroppedImage()));
  39 }
  40
  41 void vvCropDialog::ImageChanged(int newindex)
  42 {
  43   std::vector<int> imsize=mSlicerManagers[newindex]->GetImage()->GetSize();
  44   xminSlider->setMaximum(imsize[0]-1);
  45   xmaxSlider->setMaximum(imsize[0]-1);
  46   xmaxSlider->setValue(imsize[0]-1);
  47   yminSlider->setMaximum(imsize[1]-1);
  48   ymaxSlider->setMaximum(imsize[1]-1);
  49   ymaxSlider->setValue(imsize[1]-1);
  50   zminSlider->setMaximum(imsize[2]-1);
  51   zmaxSlider->setMaximum(imsize[2]-1);
  52   zmaxSlider->setValue(imsize[2]-1);
  53   spin_xmin->setMaximum(imsize[0]-1);
  54   spin_xmax->setMaximum(imsize[0]-1);
  55   spin_xmax->setValue(imsize[0]-1);
  56   spin_ymin->setMaximum(imsize[1]-1);
  57   spin_ymax->setMaximum(imsize[1]-1);
  58   spin_ymax->setValue(imsize[1]-1);
  59   spin_zmin->setMaximum(imsize[2]-1);
  60   spin_zmax->setMaximum(imsize[2]-1);
  61   spin_zmax->setValue(imsize[2]-1);
  62 }
  63
  64 void vvCropDialog::ComputeCroppedImage()
  65 {
  66   QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
  67   mResult=vvImage::New();
  68   vvSlicerManager * current=mSlicerManagers[inputSequenceBox->currentIndex()];
  69   vvImage::Pointer image=current->GetImage();
  70   for (std::vector<vtkImageData*>::const_iterator i=image->GetVTKImages().begin();
  71        i!=image->GetVTKImages().end(); i++) {
  72     vtkSmartPointer<vtkImageClip> filter=vtkSmartPointer<vtkImageClip>::New();
  73     ///Vtk is very weird, you need to "translate the extent" to get the correct origin
  74     //http://markmail.org/message/vndc2tr6kcabiakp#query:vtkImageClip%20origin+page:1+mid:6na7y57floutklvz+state:results
  75     vtkSmartPointer<vtkImageTranslateExtent> translate=vtkSmartPointer<vtkImageTranslateExtent>::New();
  76     filter->SetInput(*i);
  77     filter->SetOutputWholeExtent(xminSlider->value(),xmaxSlider->value(),
  78                                  yminSlider->value(),ymaxSlider->value(),
  79                                  zminSlider->value(),zmaxSlider->value());
  80     translate->SetTranslation(-xminSlider->value(),-yminSlider->value(),-zminSlider->value());
  81     translate->SetInput(filter->GetOutput());
  82     filter->ClipDataOn(); //Really create a cropped copy of the image
  83     translate->Update();
  84     vtkImageData* output=vtkImageData::New();
  85     output->ShallowCopy(translate->GetOutput());
  86     mResult->AddImage(output);
  87   }
  88   QApplication::restoreOverrideCursor();
  89 }