/*=========================================================================
  Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv

  Authors belong to:
  - University of LYON              http://www.universite-lyon.fr/
  - Léon Bérard cancer center       http://www.centreleonberard.fr
  - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.  See the copyright notices for more information.

  It is distributed under dual licence

  - BSD        See included LICENSE.txt file
  - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
===========================================================================**/
#ifndef VVTOOLINPUTSELECTORWIDGET_CXX
#define VVTOOLINPUTSELECTORWIDGET_CXX

// vv
#include "vvToolSimpleInputSelectorWidget.h"
#include "vvSlicerManager.h"

// qt
#include <QAbstractButton>

//------------------------------------------------------------------------------
vvToolSimpleInputSelectorWidget::vvToolSimpleInputSelectorWidget(QWidget * parent, Qt::WindowFlags f):
  QWidget(parent, f)
{
  setupUi(this);
  setEnabled(true);
  mSlicerManagerList.clear();
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::Initialize()
{
  // Connect signals & slots
  connect(mInputSelectionButtonBox, SIGNAL(accepted()), this, SLOT(accept()));
  connect(mInputSelectionButtonBox, SIGNAL(rejected()), this, SLOT(reject()));
  connect(mInputSequenceBox, SIGNAL(currentIndexChanged(int)), this, SLOT(changeInput(int)));
  if (mSlicerManagerList.size() == 1) {
    if (!mAllowSkip) accept();
  }
  if (mSlicerManagerList.size() == 0) {
    reject();
  }
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::SetText(QString & s)
{
  mGroupBox->setTitle(s);
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::EnableAllowSkip(bool b)
{
  mAllowSkip = b;
  if (mAllowSkip) {
    mInputSelectionButtonBox->setStandardButtons(QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::Ignore);
    connect(mInputSelectionButtonBox, SIGNAL(clicked(QAbstractButton*)), this, SLOT(skip(QAbstractButton*)));
  } else
    mInputSelectionButtonBox->setStandardButtons(QDialogButtonBox::Cancel|QDialogButtonBox::Ok);
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::SetInputList(const std::vector<vvSlicerManager*> & l, int index)
{
  if (l.size() == 0) {
    // TODO !!!
    DD("no input > error message");
    reject();
  }
  mInputSequenceBox->clear();
  for(unsigned int i=0; i<l.size(); i++)
    mSlicerManagerList.push_back(l[i]);
  mCurrentIndex = index;
  for (unsigned int i = 0; i < mSlicerManagerList.size(); i++) {
    mInputSequenceBox->addItem(mSlicerManagerList[i]->GetFileName().c_str());
  }
  mInputSequenceBox->setCurrentIndex(mCurrentIndex);
  changeInput(mCurrentIndex);
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::setEnabled(bool b)
{
  QWidget::setEnabled(b);
  mInputSelectionButtonBox->setEnabled(b);
  mInputSequenceBox->setEnabled(b);
  
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::accept()
{
  mInputSelectionButtonBox->setEnabled(false);
  mInputSequenceBox->setEnabled(false);
  emit accepted();
}
//------------------------------------------------------------------------------



//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::reject()
{
  emit rejected();
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::skip(QAbstractButton* b)
{
  if (b->text() == "Ignore") emit sigskip();
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
void vvToolSimpleInputSelectorWidget::changeInput(int index)
{
  if (index<0) return;
  if (index>=(int)mSlicerManagerList.size()) return;
  mCurrentIndex = index;
  vvImage * mCurrentImage = mSlicerManagerList[index]->GetImage();
  if (mCurrentImage == NULL) return;
  unsigned int d = mCurrentImage->GetNumberOfDimensions();
  QString size;
  QString spacing;
  for(unsigned int i=0; i<d-1; i++) {
    size.append(QString("%1").arg(mCurrentImage->GetSize()[i]));
    size.append("x");
    spacing.append(QString("%1").arg(mCurrentImage->GetSpacing()[i]));
    spacing.append("x");
  }
  size.append(QString("%1").arg(mCurrentImage->GetSize()[d-1]));
  spacing.append(QString("%1").arg(mCurrentImage->GetSpacing()[d-1]));
  mLabelInputInfo->setText(QString("%1D %2\n%3\n%4")
                           .arg(d)
                           .arg(mCurrentImage->GetScalarTypeAsITKString().c_str())
                           .arg(size)
                           .arg(spacing));
}
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
vvSlicerManager * vvToolSimpleInputSelectorWidget::GetSelectedInput()
{
  return mSlicerManagerList[GetSelectedInputIndex()];
}
//------------------------------------------------------------------------------

#endif