/****************************************************************************
 * MeshLab                                                           o o     *
 * A versatile mesh processing toolbox                             o     o   *
 *                                                                _   O  _   *
 * Copyright(C) 2005                                                \/)\/    *
 * Visual Computing Lab                                            /\/|      *
 * ISTI - Italian National Research Council                           |      *
 *                                                                    \      *
 * All rights reserved.                                                      *
 *                                                                           *
 * 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.                                       *
 *                                                                           *
 * This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt)          *
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
/****************************************************************************
  History
$Log: meshedit.cpp,v $
****************************************************************************/
#include <QtGui>

#include <math.h>
#include <stdlib.h>
#include <meshlab/glarea.h>
#include "sampleedit.h"
#include <wrap/gl/pick.h>
#include<limits>
using namespace vcg;

SampleEditPlugin::SampleEditPlugin() {
  curFacePtr=0;
	qFont.setFamily("Helvetica");
	qFont.setPixelSize(10);
	
	actionList << new QAction(QIcon(":/images/icon_info.png"),"Get Info", this);
  foreach(QAction *editAction, actionList)
    editAction->setCheckable(true);      
}

QList<QAction *> SampleEditPlugin::actions() const {
	return actionList;
}


const QString SampleEditPlugin::Info(QAction *action) 
{
  if( action->text() != tr("Get Info") ) assert (0);

	return tr("Return detailed info about a picked face of the model.");
}

const PluginInfo &SampleEditPlugin::Info() 
{
   static PluginInfo ai; 
   ai.Date=tr(__DATE__);
	 ai.Version = tr("1.0");
	 ai.Author = ("Paolo Cignoni");
   return ai;
 } 
 
  void SampleEditPlugin::mousePressEvent    (QAction *, QMouseEvent * event, MeshModel &m, GLArea * gla)
  {  }
  
  void SampleEditPlugin::mouseMoveEvent     (QAction *,QMouseEvent * event, MeshModel &/*m*/, GLArea * gla)
  {  }
  
  void SampleEditPlugin::mouseReleaseEvent  (QAction *,QMouseEvent * event, MeshModel &/*m*/, GLArea * gla)
  {
    gla->update();
    cur=event->pos();
		haveToPick=true;
  }
  
	void SampleEditPlugin::Decorate(QAction * ac, MeshModel &m, GLArea * gla)
  {
    if(haveToPick)
    {
			vector<CMeshO::FacePointer> NewSel;  
			GLPickTri<CMeshO>::PickFace(cur.x(), gla->height() - cur.y(), m.cm, NewSel);
			qDebug("Pickface: Mousepos %i %i",cur.x(),cur.y());
			qDebug("Pickface: Got  %i on %i",NewSel.size(),m.cm.face.size());
      if(NewSel.size()>0)
					curFacePtr=NewSel.front();
			haveToPick=false;
    }   
	 if(curFacePtr)
	 {
	  glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT);
		glDisable(GL_DEPTH_TEST); 
		glDisable(GL_LIGHTING);
		glColor(Color4b::Red);
	  glBegin(GL_LINE_LOOP);
			glVertex(curFacePtr->P(0));
			glVertex(curFacePtr->P(1));
			glVertex(curFacePtr->P(2));
		glEnd();
		for(int i=0;i<3;++i)
			gla->renderText(curFacePtr->P(i)[0],curFacePtr->P(i)[1],curFacePtr->P(i)[2],
											QString("v%1:%2").arg(i).arg(curFacePtr->V(i) - &m.cm.vert[0]), qFont);
		glPopAttrib();
	 }
  }

void SampleEditPlugin::StartEdit(QAction * /*mode*/, MeshModel &m, GLArea *gla )
{
	gla->setCursor(QCursor(QPixmap(":/images/cur_info.png"),1,1));	
}


Q_EXPORT_PLUGIN(SampleEditPlugin)