//This file is part of SECONDO.

//Copyright (C) 2004, University in Hagen, Department of Computer Science, 
//Database Systems for New Applications.

//SECONDO 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.

//SECONDO 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 for more details.

//You should have received a copy of the GNU General Public License
//along with SECONDO; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

package viewer.viewer3d;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import viewer.viewer3d.graphic3d.*;
import tools.Reporter;

/**
  * this class provides a JDialog to change the 3d-Options for
  * the visualization of a fuzzy spatial object
  */
public class Options3D extends JDialog{

/** creates a new Options-Dialog for W3D */
public Options3D(Frame F,World3D W3D){
 super(F,"3D-Options",true); 
 this.W3D = W3D;
 setSize(350,250);
 Container ContentPane = getContentPane();
 ContentPane.setLayout(new FlowLayout());
 JPanel C = new JPanel(new GridLayout(7,4));
 C.add(new JLabel(" "));
 C.add(new JLabel("X",JLabel.CENTER));
 C.add(new JLabel("Y",JLabel.CENTER));
 C.add(new JLabel("Z",JLabel.CENTER));
 WindowXText = new JTextField(""+W3D.getWindowX(),5);
 WindowYText = new JTextField(""+W3D.getWindowY(),5);
 C.add(new JLabel("Window"));
 C.add(WindowXText);
 C.add(WindowYText);
 C.add(new JLabel(""));   // dummy for ZValue

 /*        Eye - Values    */
 C.add(new JLabel("Eye"));
 EyeXText = new JTextField(""+ W3D.getEyeX(),5);
 C.add(EyeXText);
 EyeYText = new JTextField(""+W3D.getEyeY(),5);
 C.add(EyeYText);
 EyeZText = new JTextField(""+ W3D.getEyeZ(),5);
 C.add(EyeZText);
 /*     VRP-Values      */
 C.add(new JLabel("VRP"));
 VRPXText = new JTextField(""+W3D.getVRPX(),5);
 C.add(VRPXText);
 VRPYText = new JTextField(""+ W3D.getVRPY(),5);
 C.add(VRPYText);
 VRPZText = new JTextField(""+ W3D.getVRPZ(),5);
 C.add(VRPZText);

 /*  ViewUp - values */
 C.add(new JLabel("ViewUp"));
 ViewUpXText = new JTextField(""+ W3D.getViewUpX(),5);
 C.add(ViewUpXText);
 ViewUpYText = new JTextField(""+ W3D.getViewUpY(),5);
 C.add(ViewUpYText);
 ViewUpZText = new JTextField(""+ W3D.getViewUpZ(),5);

 C.add(ViewUpZText);
 C.add(ResetBtn);
 C.add(OkBtn);
 C.add(CancelBtn); 
 C.add(ApplyBtn);
 C.add(ProposalBtn);

 ResetBtn.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
               Options3D.this.reset();
            }});
 OkBtn.addActionListener(new ActionListener(){
       public void actionPerformed(ActionEvent evt){
            if( Options3D.this.accept())
		  setVisible(false);		   
       }
       });

 CancelBtn.addActionListener(new ActionListener(){
       public void actionPerformed(ActionEvent evt){
            Options3D.this.reset();
            ResultValue = CANCEL; 
            Options3D.this.setVisible(false);
       }});

 ApplyBtn.addActionListener(new ActionListener(){
       public void actionPerformed(ActionEvent evt){
          Options3D.this.accept();
       }});
 ProposalBtn.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent evt){
       Options3D.this.makeProposal();
    }
});

 getContentPane().add(C);
}


/** send the options to the World */
private boolean accept(){
  boolean ok = true;
  double WindowX=0,WindowY=0;
  double EyeX=0,EyeY=0,EyeZ=0;
  double VRPX=0,VRPY=0,VRPZ=0;
  double ViewUpX=0,ViewUpY=0,ViewUpZ=0;

  try{
   WindowX    =  Double.parseDouble(WindowXText.getText());
   WindowY    =  Double.parseDouble(WindowYText.getText());
   EyeX       =  Double.parseDouble(EyeXText.getText());
   EyeY       =  Double.parseDouble(EyeYText.getText());
   EyeZ       =  Double.parseDouble(EyeZText.getText());
   VRPX       =  Double.parseDouble(VRPXText.getText());
   VRPY       =  Double.parseDouble(VRPYText.getText());
   VRPZ       =  Double.parseDouble(VRPZText.getText());
   ViewUpX    =  Double.parseDouble(ViewUpXText.getText());
   ViewUpY    =  Double.parseDouble(ViewUpYText.getText());
   ViewUpZ    =  Double.parseDouble(ViewUpZText.getText());
  }
  catch(Exception e){
     ok = false;
     Reporter.showError("invalid values in fields (not a double)");
  }

  boolean viewcheck=true;
  boolean windowok=true;

  if (ok) {
    viewcheck =
        FM3DGraphic.checkView(
                  EyeX, EyeY, EyeZ,
                  VRPX, VRPY, VRPZ,
                  ViewUpX, ViewUpY, ViewUpZ);
    windowok = WindowX >0 & WindowY>0;
 
    if (!viewcheck){
       Reporter.showError("Eye,VRP,ViewUp cannot be on a line");
       ok = false;
       }
    else
       if (!windowok) {
          Reporter.showError("Window must be greater then 0x0");
          ok = false;
       }
  }   // if ok

  if(ok)  {    // apply fields
   W3D.setView( EyeX   , EyeY   , EyeZ ,
                VRPX   , VRPY   , VRPZ ,
                ViewUpX, ViewUpY, ViewUpZ);
   W3D.setWindow(WindowX,WindowY);
   W3D.update();
   W3D.repaint();
   ResultValue = OK;
 }
  return ok;
}


/** set the options to the last values */
public void reset(){
 WindowXText.setText(""+W3D.getWindowX());
 WindowYText.setText(""+W3D.getWindowY());
 EyeXText.setText(""+ W3D.getEyeX());
 EyeYText.setText(""+W3D.getEyeY());
 EyeZText.setText(""+ W3D.getEyeZ());
 VRPXText.setText(""+ W3D.getVRPX());
 VRPYText.setText(""+ W3D.getVRPY());
 VRPZText.setText(""+ W3D.getVRPZ());
 ViewUpXText.setText(""+ W3D.getViewUpX());
 ViewUpYText.setText(""+ W3D.getViewUpY());
 ViewUpZText.setText(""+ W3D.getViewUpZ());
}

/** set the BoundingBox to compute a proposal */
public void setBoundingBox(BoundingBox3D BB){
   this.BB = BB;
}

/** compute a Proposal */
public void makeProposal(){
  if(BB==null){
     Reporter.showError("no bounding box is set");
     return;
  }
  

  double xdim = BB.getMaxX()-BB.getMinX();
  double ydim = BB.getMaxY()-BB.getMinY();
  double zdim = BB.getMaxZ()-BB.getMinZ();

  // show to center-bottom
  VRPXText.setText(""+BB.getCenterX());
  VRPYText.setText(""+BB.getMaxY());
  VRPZText.setText(""+BB.getMinZ());

  // show from above
  EyeXText.setText(""+BB.getCenterX());
  EyeYText.setText(""+(BB.getMinY()-3*(ydim+zdim)));
  EyeZText.setText(""+(BB.getMaxZ()+4*(ydim+zdim)));
  ViewUpXText.setText("0");
  ViewUpYText.setText("0");
  ViewUpZText.setText("1");

  WindowXText.setText(""+(xdim));

  double dY =  BB.getMaxY()-(BB.getMinY()-3*(ydim+zdim)); //VRPY-EYEY
  double dZ =  (BB.getMaxZ()+4*(ydim+zdim))-BB.getMinZ(); //EYEZ-VRPZ
  double Rel = dY/dZ;

  WindowYText.setText(""+((ydim/Rel+zdim*Rel)));

}


public final static int OK = 0;
public final static int CANCEL = 1;
private World3D W3D;
private JTextField WindowXText;
private JTextField WindowYText;
private JTextField EyeXText;
private JTextField EyeYText;
private JTextField EyeZText;
private JTextField VRPXText;
private JTextField VRPYText;
private JTextField VRPZText;
private JTextField ViewUpXText;
private JTextField ViewUpYText;
private JTextField ViewUpZText;
private JButton ResetBtn = new JButton("reset");
private JButton OkBtn = new JButton("ok");
private JButton CancelBtn = new JButton("cancel");
private JButton ApplyBtn = new JButton("apply");
private JButton ProposalBtn = new JButton("proposal");
private String State="ok";
private int ResultValue;
private BoundingBox3D BB = null;
}