/*===========================================================================*\
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*                              OpenFlipper                                   *
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 * This file is part of OpenFlipper.                                         *
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\*===========================================================================*/

/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
*   $LastChangedBy$                                                *
*   $Date$                     *
*                                                                            *
\*===========================================================================*/

#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
#include <OpenFlipper/common/GlobalOptions.hh>

#include <OpenMesh/Core/IO/IOManager.hh>

#if QT_VERSION >= 0x050000
  #include <QtWidgets>
#else
  #include <QtGui>
#endif

#include "FileOfv.hh"


void FileViewPlugin::initializePlugin() {
}

QString FileViewPlugin::getLoadFilters() {
  return QString( tr("View definition files ( *.ofv )") );
}

QString FileViewPlugin::getSaveFilters() {
  return QString( tr("View definition files ( *.ofv )") );
}

DataType  FileViewPlugin::supportedType() {
  return DataType();
}

int FileViewPlugin::loadObject(QString _filename) {

    // Declare variables
    ACG::Vec3d  eye(1.0,1.0,1.0);
    ACG::Vec3d  center(0.0,0.0,0.0);
    ACG::Vec3d  up(1.0,0.0,0.0);
    ACG::Vec4f  background;
    
    bool e_eye = false;
    bool e_center = false;
    bool e_up = false;
    bool e_background = false;
    
    QSettings settings(_filename, QSettings::IniFormat);
    settings.beginGroup("VIEW");

    if(settings.contains("Width") && settings.contains("Height")) {
        const int width = settings.value("Width").toInt();
        const int height = settings.value("Height").toInt();
        std::cerr << "Setting new viewport to " << width << "x" << height << std::endl;
    }
    
    if(settings.contains("EyeX")) {
        eye[0] = settings.value("EyeX").toDouble();
        eye[1] = settings.value("EyeY").toDouble();
        eye[2] = settings.value("EyeZ").toDouble();
        std::cerr << "Setting new eye position to " << eye << std::endl;
        e_eye = true;
    }
    
    if(settings.contains("CenterX")) {
        center[0] = settings.value("CenterX").toDouble();
        center[1] = settings.value("CenterY").toDouble();
        center[2] = settings.value("CenterZ").toDouble();
        std::cerr << "Setting new scene center to " << center << std::endl;
        e_center = true;
    }
    
    if(settings.contains("UpX")) {
        up[0] = settings.value("UpX").toDouble();
        up[1] = settings.value("UpY").toDouble();
        up[2] = settings.value("UpZ").toDouble();
        std::cerr << "Setting new up vector to " << up << std::endl;
        e_up = true;
    }
    
    
    if(settings.contains("BackgroundR")) {
        background[0] = settings.value("BackgroundR").toDouble();
        background[1] = settings.value("BackgroundG").toDouble();
        background[2] = settings.value("BackgroundB").toDouble();
        background[3] = settings.value("BackgroundA").toDouble();
        std::cerr << "Setting new background color to " << background << std::endl;
        e_background = true;
    }

    settings.endGroup();
    
    // Now set new projection and view
       
    // LookAt
    ACG::Vec3d new_eye = e_eye ? eye : PluginFunctions::eyePos();
    ACG::Vec3d new_center = e_center ? center : PluginFunctions::sceneCenter();
    ACG::Vec3d new_up = e_up ? up : PluginFunctions::upVector();
        
    PluginFunctions::lookAt(new_eye, new_center, new_up);
        
    // Background color
    if(e_background) {
        PluginFunctions::setBackColor(background);
     }
    
    emit updateView();
  
    return 0;
}

bool FileViewPlugin::saveObject(int /*_id*/, QString /*_filename*/) {
  
  return true;
}

#if QT_VERSION < 0x050000
  Q_EXPORT_PLUGIN2( fileviewplugin , FileViewPlugin );
#endif