RasterSlicingAction.cpp

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.

    This file is part of the TerraLib - a Framework for building GIS enabled applications.

    TerraLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version.

    TerraLib is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */

/*!
  \file terralib/qt/plugins/rp/RasterSlicingAction.cpp

  \brief This file defines the RasterSlicing class
*/

// Terralib
#include "../../../qt/widgets/rp/RasterSlicingWizard.h"
#include "../../../raster/Raster.h"
#include "../../af/ApplicationController.h"
#include "../../af/BaseApplication.h"
#include "../../af/events/LayerEvents.h"
#include "../../widgets/canvas/MapDisplay.h"
#include "RasterSlicingAction.h"

// Qt
#include <QObject>
#include <QMessageBox>

// STL
#include <memory>

te::qt::plugins::rp::RasterSlicingAction::RasterSlicingAction(QMenu* menu, QMenu* popupMenu):te::qt::plugins::rp::AbstractAction(menu, popupMenu)
{
  createAction(tr("Raster Slicing...").toUtf8().data(), "rasterslicing");
  m_action->setObjectName("Processing.Raster Processing.RasterSlicing");
}

te::qt::plugins::rp::RasterSlicingAction::~RasterSlicingAction() = default;

void te::qt::plugins::rp::RasterSlicingAction::onActionActivated(
    bool /*checked*/)
{
  te::qt::af::AppCtrlSingleton::getInstance().addListener(this, te::qt::af::RECEIVER);

  m_rasterSlicingWizard.reset(new te::qt::widgets::RasterSlicingWizard(te::qt::af::AppCtrlSingleton::getInstance().getMainWindow()));

  //get display extent
  te::qt::af::BaseApplication* ba = dynamic_cast<te::qt::af::BaseApplication*>(te::qt::af::AppCtrlSingleton::getInstance().getMainWindow());

  /*
    The extent and srid information is optional
    If this is not available, the user won't be able to trim the raster
    However, the user can stil proceed with the slicing function normally
  */

  if(ba)
  {
    const te::gm::Envelope extent = ba->getMapDisplay()->getExtent();
    int srid = ba->getMapDisplay()->getSRID();

    m_rasterSlicingWizard->setExtent(extent);
    m_rasterSlicingWizard->setSRID(srid);
  }

  m_rasterSlicingWizard->setMapDisplay(ba->getMapDisplay());

  connect(m_rasterSlicingWizard.get(), SIGNAL(addLayer(te::map::AbstractLayerPtr)), this, SLOT(addLayerSlot(te::map::AbstractLayerPtr)));
  connect(m_rasterSlicingWizard.get(), SIGNAL(finished(int)), SLOT(onRasterSlicingFinished()));

  QActionGroup* mapEditionTools = te::qt::af::AppCtrlSingleton::getInstance().findActionGroup("Map.ToolsGroup");
  assert(mapEditionTools);

  m_rasterSlicingWizard->setActionGroup(mapEditionTools);

  std::list<te::map::AbstractLayerPtr> layersList = getLayers();

  m_rasterSlicingWizard->setAttribute(Qt::WA_DeleteOnClose);

  m_rasterSlicingWizard->setList(layersList);

  m_rasterSlicingWizard->setModal(false);

  m_rasterSlicingWizard->show();
}

void te::qt::plugins::rp::RasterSlicingAction::onPopUpActionActivated(
    bool /*checked*/)
{
  te::map::AbstractLayerPtr layer = getCurrentLayer();

  if(layer.get())
  {
    te::qt::widgets::RasterSlicingWizard dlg(te::qt::af::AppCtrlSingleton::getInstance().getMainWindow());

    if(dlg.exec() == QDialog::Accepted)
    {
      //add new layer
      addNewLayer(dlg.getOutputLayer());
    }
  }
  else
  {
    QMessageBox::warning(te::qt::af::AppCtrlSingleton::getInstance().getMainWindow(), tr("Warning"), tr("The layer selected is invalid or does not have an raster representation."));
  }
}

void te::qt::plugins::rp::RasterSlicingAction::onRasterSlicingFinished()
{
  te::qt::af::AppCtrlSingleton::getInstance().removeListener(this);

  m_rasterSlicingWizard.release();
}

void te::qt::plugins::rp::RasterSlicingAction::addLayerSlot(te::map::AbstractLayerPtr layer)
{
  addNewLayer(layer);
}

void te::qt::plugins::rp::RasterSlicingAction::onApplicationTriggered(te::qt::af::evt::Event* e)
{
  switch(e->m_id)
  {
    case te::qt::af::evt::DRAWING_FINISHED:
    {
      m_rasterSlicingWizard->onMapDisplayExtentChanged();
    }
    break;

    default:
     break;
  }
}