/***************************************************************************
  ossimplanet.cpp
  OssimPlanet plugin for veiwing rasters at the Earth
  -------------------
         begin                : Sat Apr  4 11:52:27 MSD 2009
         copyright            : (C) 2009 by Jack R
         email                : lynx21.12.12@gmail.com

 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
/*  $Id: plugin.cpp 9327 2008-09-14 11:18:44Z jef $ */

//
// QGIS Specific includes
//

#include <qgisinterface.h>
#include <qgisgui.h>
#include <qgsmapcanvas.h>
#include <qgsmaplayer.h>
#include <qgsmaplayerregistry.h>

#include "ossimplanetplugin.h"
#include "ossimplanetgui.h"

//
// Qt4 Related Includes
//

#include <QtGui/QAction>
#include <QtGui/QToolBar>
#include <QtGui/QTabWidget>


static const char * const sIdent = "$Id: plugin.cpp 9327 2008-09-14 11:18:44Z jef $";
static const QString sName = QObject::tr( "OssimPlanet" );
static const QString sDescription = QObject::tr( "OssimPlanet plugin for veiwing rasters at the Earth" );
static const QString sPluginVersion = QObject::tr( "Version 0.1" );
static const QgisPlugin::PLUGINTYPE sPluginType = QgisPlugin::UI;

//////////////////////////////////////////////////////////////////////
//
// THE FOLLOWING METHODS ARE MANDATORY FOR ALL PLUGINS
//
//////////////////////////////////////////////////////////////////////

/**
 * Constructor for the plugin. The plugin is passed a pointer
 * an interface object that provides access to exposed functions in QGIS.
 * @param theQGisInterface - Pointer to the QGIS interface object
 */
OssimPlanetPlugin::OssimPlanetPlugin( QgisInterface * theQgisInterface ):
    QgisPlugin( sName, sDescription, sPluginVersion, sPluginType ),
    mQGisIface( theQgisInterface )
{
}

OssimPlanetPlugin::~OssimPlanetPlugin()
{

}

/*
 * Initialize the GUI interface for the plugin - this is only called once when the plugin is
 * added to the plugin registry in the QGIS application.
 */
void OssimPlanetPlugin::initGui()
{
  // Create the action for tool
  mQActionPointer = new QAction( QIcon( ":/ossimplanet/ossimplanet.png" ), tr( "OssimPlanet" ), this );
  // Set the what's this text
  mQActionPointer->setWhatsThis( tr( "Veiw layers at the planet" ) );
  // Connect the action to the run
  connect( mQActionPointer, SIGNAL( triggered() ), this, SLOT( run() ) );
  // Add the icon to the toolbar
  mQGisIface->addToolBarIcon( mQActionPointer );
  mQGisIface->addPluginToMenu( tr( "&OssimPlanet" ), mQActionPointer );

  mOssimPlanetGui = new OssimPlanetGui(mQGisIface, mQGisIface->mainWindow());
  mQGisIface->addTabWidget(mOssimPlanetGui, tr("3D view"));
  mOssimPlanetGui->uploadImages();

  connect(mQGisIface->mapCanvas(), SIGNAL(layersChanged()), mOssimPlanetGui, SLOT(uploadImages()));
}

//method defined in interface
void OssimPlanetPlugin::help()
{
  //implement me!
}

// Slot called when the menu item is triggered
// If you created more menu items / toolbar buttons in initiGui, you should
// create a separate handler for each action - this single run() method will
// not be enough
void OssimPlanetPlugin::run()
{
  QgsMapLayer *activeLayer = mQGisIface->activeLayer();
  if (activeLayer)
  {
    int idx = QgsMapLayerRegistry::instance()->mapLayers().keys().indexOf(activeLayer->getLayerID());
    mOssimPlanetGui->lookAt(idx);
  }
}

// Unload the plugin by cleaning up the GUI
void OssimPlanetPlugin::unload()
{
  // remove the GUI
  mQGisIface->removePluginMenu( "&OssimPlanet", mQActionPointer );
  mQGisIface->removeToolBarIcon( mQActionPointer );
  mQGisIface->removeTabWidget(mQGisIface->tabWidget()->indexOf(mOssimPlanetGui));
  delete mQActionPointer;
}


//////////////////////////////////////////////////////////////////////////
//
//
//  THE FOLLOWING CODE IS AUTOGENERATED BY THE PLUGIN BUILDER SCRIPT
//    YOU WOULD NORMALLY NOT NEED TO MODIFY THIS, AND YOUR PLUGIN
//      MAY NOT WORK PROPERLY IF YOU MODIFY THIS INCORRECTLY
//
//
//////////////////////////////////////////////////////////////////////////


/**
 * Required extern functions needed  for every plugin
 * These functions can be called prior to creating an instance
 * of the plugin class
 */
// Class factory to return a new instance of the plugin class
QGISEXTERN QgisPlugin * classFactory( QgisInterface * theQgisInterfacePointer )
{
  return new OssimPlanetPlugin( theQgisInterfacePointer );
}
// Return the name of the plugin - note that we do not user class members as
// the class may not yet be insantiated when this method is called.
QGISEXTERN QString name()
{
  return sName;
}

// Return the description
QGISEXTERN QString description()
{
  return sDescription;
}

// Return the type (either UI or MapLayer plugin)
QGISEXTERN int type()
{
  return sPluginType;
}

// Return the version number for the plugin
QGISEXTERN QString version()
{
  return sPluginVersion;
}

// Delete ourself
QGISEXTERN void unload( QgisPlugin * thePluginPointer )
{
  delete thePluginPointer;
}