/* $RCSfile$
 * $Author: hansonr $
 * $Date: 2019-11-17 22:49:25 -0600 (Sun, 17 Nov 2019) $
 * $Revision: 22002 $
 *
 * Copyright (C) 2002-2005  The Jmol Development Team
 *
 * Contact: jmol-developers@lists.sf.net
 *
 *  This library 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 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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 this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package org.openscience.jmol.app.jmolpanel;

import org.jmol.viewer.Viewer;
import org.jmol.i18n.GT;
import org.jmol.util.Logger;
import org.openscience.jmol.app.jmolpanel.JmolPanel;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.border.TitledBorder;
import javax.swing.JComponent;
import javax.swing.InputVerifier;
import java.io.File;
import java.util.Hashtable;
import java.util.Map;

/**
 * A dialog for controling the creation of a povray input file from a Chemframe
 * and a display. The actual leg work of writing the file out is done by
 * PovrayWriter.java.
 * <p>
 * Borrows code from org.openscience.jmol.Vibrate (Thanks!).
 * 
 * @author Thomas James Grey (tjg1@ch.ic.ac.uk)
 * @author Matthew A. Meineke (mmeineke@nd.edu)
 */
public class PovrayDialog extends JDialog {

  private transient Viewer vwr;

  protected JButton povrayPathButton;
  //protected JTextField commandLineField;
  protected JButton goButton;
  protected JTextField saveField;
  protected JTextField savePathLabel;
  private int outputWidth = -1;
  private int outputHeight = -1;
  protected JTextField povrayPathLabel;

  protected JCheckBox runPovCheck;
  //protected JCheckBox useIniCheck;
  protected JCheckBox allFramesCheck;
  protected JCheckBox antiAliasCheck;
  protected JCheckBox displayWhileRenderingCheck;

  //private JCheckBox           imageSizeCheck;
  private JLabel imageSizeWidth;
  private JFormattedTextField imageSizeTextWidth;
  private JLabel imageSizeHeight;
  private JFormattedTextField imageSizeTextHeight;
  private JCheckBox imageSizeRatioBox;
  private JComboBox<String> imageSizeRatioCombo;

  private JCheckBox outputFormatCheck;
  private JComboBox<String> outputFormatCombo;

  private JCheckBox outputAlphaCheck;

  private JCheckBox mosaicPreviewCheck;
  private JLabel mosaicPreviewStart;
  private JComboBox<String> mosaicPreviewComboStart;
  private JLabel mosaicPreviewEnd;
  private JComboBox<String> mosaicPreviewComboEnd;

  private String outputExtension = ".png";
  private String outputFileType = "N";

  /**
   * Creates a dialog for getting info related to output frames in povray
   * format.
   * 
   * @param f
   *        The frame assosiated with the dialog
   * @param vwr
   *        The interacting display we are reproducing (source of view angle
   *        info etc)
   */
  public PovrayDialog(JFrame f, Viewer vwr) {

    super(f, GT.$("Render in POV-Ray"), true);
    this.vwr = vwr;

    //
    String text = null;

    //Take the height and width settings from the JFrame
    int screenWidth = vwr.getScreenWidth();
    int screenHeight = vwr.getScreenHeight();
    setImageDimensions(screenWidth, screenHeight);

    // Event management
    ActionListener updateActionListener = new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        updateScreen();
      }
    };
    InputVerifier updateInputVerifier = new InputVerifier() {
      @Override
      public boolean verify(JComponent component) {
        updateScreen();
        return true;
      }
    };
    ItemListener updateItemListener = new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        updateScreen();
      }
    };

    //Box: Window
    Box windowBox = Box.createVerticalBox();
    getContentPane().add(windowBox);

    //Box: Main
    Box mainBox = Box.createVerticalBox();

    //GUI for save name selection
    Box justSavingBox = Box.createVerticalBox();
    text = GT.$("Conversion from Jmol to POV-Ray");
    justSavingBox.setBorder(new TitledBorder(text));

    Box saveBox = Box.createHorizontalBox();
    text = GT.$("File Name:");
    saveBox.setBorder(new TitledBorder(text));
    text = GT
        .$("'caffeine.pov' -> 'caffeine.pov', 'caffeine.pov.ini', 'caffeine.pov.spt'");
    saveBox.setToolTipText(text);
    saveField = new JTextField("Jmol.pov", 20);
    saveField.addActionListener(updateActionListener);
    saveField.setInputVerifier(updateInputVerifier);
    saveBox.add(saveField);
    justSavingBox.add(saveBox);

    //GUI for save path selection
    Box savePathBox = Box.createHorizontalBox();
    text = GT.$("Working Directory");
    savePathBox.setBorder(new TitledBorder(text));
    text = GT.$("Where the .pov files will be saved");
    savePathBox.setToolTipText(text);
    savePathLabel = new JTextField("");
    savePathLabel.setEditable(false);
    savePathLabel.setBorder(null);
    savePathBox.add(savePathLabel);
    text = GT.$("Select");
    JButton savePathButton = new JButton(text);
    savePathButton.addActionListener(new ActionListener() {

      @Override
      public void actionPerformed(ActionEvent e) {
        showSavePathDialog();
      }
    });
    savePathBox.add(savePathButton);
    justSavingBox.add(savePathBox);
    mainBox.add(justSavingBox);

    //GUI for povray options
    Box povOptionsBox = Box.createVerticalBox();
    text = GT.$("POV-Ray Runtime Options");
    povOptionsBox.setBorder(new TitledBorder(text));

    // Run povray option
    Box runPovBox = Box.createHorizontalBox();
    text = GT.$("Run POV-Ray directly");
    runPovCheck = new JCheckBox(text, true);
    text = GT.$("Launch POV-Ray from within Jmol");
    runPovCheck.setToolTipText(text);
    runPovCheck.addItemListener(updateItemListener);
    runPovBox.add(runPovCheck);
    runPovBox.add(Box.createGlue());
    povOptionsBox.add(runPovBox);

    /*
       // Use Ini option
       Box useIniBox = Box.createHorizontalBox();
       text = GT._("Use .ini file");
       useIniCheck = new JCheckBox(text, true);
       text = GT._("Save options in a .ini file");
       useIniCheck.setToolTipText(text);
       useIniCheck.addItemListener(updateItemListener);
       useIniBox.add(useIniCheck);
       useIniBox.add(Box.createGlue());
       povOptionsBox.add(useIniBox);

       // Render all frames options
       Box allFramesBox = Box.createHorizontalBox();
       text = GT._("Render all frames");
       allFramesCheck = new JCheckBox(text, false);
       text = GT._("Render each model (not only the currently displayed one)");
       allFramesCheck.setToolTipText(text);
       allFramesCheck.addItemListener(updateItemListener);
       allFramesBox.add(allFramesCheck);
       allFramesBox.add(Box.createGlue());
       povOptionsBox.add(allFramesBox);
       
       // Antialias option
       Box antiAliasBox = Box.createHorizontalBox();
       text = GT._("Turn on POV-Ray anti-aliasing");
       antiAliasCheck = new JCheckBox(text, true);
       text = GT._("Use povray's slower but higher quality anti-aliasing mode");
       antiAliasCheck.setToolTipText(text);
       antiAliasCheck.addItemListener(updateItemListener);
       antiAliasBox.add(antiAliasCheck);
       antiAliasBox.add(Box.createGlue());
       povOptionsBox.add(antiAliasBox);
       
    */
    // Display when rendering option
    Box displayBox = Box.createHorizontalBox();
    text = GT.$("Display While Rendering");
    displayWhileRenderingCheck = new JCheckBox(text, true);
    text = GT.$("Should POV-Ray attempt to display while rendering?");
    displayWhileRenderingCheck.setToolTipText(text);
    displayWhileRenderingCheck.addItemListener(updateItemListener);
    displayBox.add(displayWhileRenderingCheck);
    displayBox.add(Box.createGlue());
    povOptionsBox.add(displayBox);

    // Image size option
    Box imageBox = Box.createHorizontalBox();
    //text = GT._("Image size");
    //imageSizeCheck = new JCheckBox(text, true);
    //text = GT._("Image size");
    //imageSizeCheck.setToolTipText(text);
    //imageSizeCheck.addItemListener(new ItemListener() {
    //  public void itemStateChanged(ItemEvent e) {
    //    imageSizeChanged();
    //    updateCommandLine();
    //  }
    //});
    //imageBox.add(imageSizeCheck);
    imageBox.add(Box.createHorizontalStrut(10));
    Box imageSizeDetailBox = Box.createVerticalBox();
    Box imageSizeXYBox = Box.createHorizontalBox();
    text = GT.$("width:") + " ";
    imageSizeWidth = new JLabel(text);
    text = GT.$("Image width");
    imageSizeWidth.setToolTipText(text);
    imageSizeXYBox.add(imageSizeWidth);
    imageSizeTextWidth = new JFormattedTextField();
    imageSizeTextWidth.setValue(Integer.valueOf(outputWidth));
    imageSizeTextWidth.addPropertyChangeListener("value",
        new PropertyChangeListener() {
          @Override
          public void propertyChange(PropertyChangeEvent e) {
            imageSizeChanged();
            updateCommandLine();
          }
        });
    imageSizeXYBox.add(imageSizeTextWidth);
    imageSizeXYBox.add(Box.createHorizontalStrut(10));
    text = GT.$("height:") + " ";
    imageSizeHeight = new JLabel(text);
    text = GT.$("Image height");
    imageSizeHeight.setToolTipText(text);
    imageSizeXYBox.add(imageSizeHeight);
    imageSizeTextHeight = new JFormattedTextField();
    imageSizeTextHeight.setValue(Integer.valueOf(outputHeight));
    imageSizeTextHeight.addPropertyChangeListener("value",
        new PropertyChangeListener() {
          @Override
          public void propertyChange(PropertyChangeEvent e) {
            imageSizeChanged();
            updateCommandLine();
          }
        });
    imageSizeXYBox.add(imageSizeTextHeight);
    imageSizeXYBox.add(Box.createGlue());
    imageSizeDetailBox.add(imageSizeXYBox);
    Box imageSizeBox = Box.createHorizontalBox();
    text = GT.$("Fixed ratio : ");
    imageSizeRatioBox = new JCheckBox(text, true);
    text = GT.$("Use a fixed ratio for width:height");
    imageSizeRatioBox.setToolTipText(text);
    imageSizeRatioBox.addItemListener(new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        imageSizeChanged();
        updateCommandLine();
      }
    });
    imageSizeBox.add(imageSizeRatioBox);
    imageSizeBox.add(Box.createHorizontalStrut(10));
    imageSizeRatioCombo = new JComboBox<String>();
    text = GT.$("User defined");
    imageSizeRatioCombo.addItem(text);
    text = GT.$("Keep ratio of Jmol window");
    imageSizeRatioCombo.addItem(text);
    text = "4:3";
    imageSizeRatioCombo.addItem(text);
    text = "16:9";
    imageSizeRatioCombo.addItem(text);
    imageSizeRatioCombo.setSelectedIndex(1);
    imageSizeRatioCombo.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        imageSizeChanged();
        updateCommandLine();
      }
    });
    imageSizeBox.add(imageSizeRatioCombo);
    imageSizeBox.add(Box.createGlue());
    imageSizeDetailBox.add(imageSizeBox);
    imageSizeDetailBox.add(Box.createGlue());
    imageBox.add(imageSizeDetailBox);
    imageBox.add(Box.createGlue());
    povOptionsBox.add(imageBox);
    imageSizeChanged();

    // Output format option
    Box outputBox = Box.createHorizontalBox();
    /*    
        text = GT._("Output format : ");
        outputFormatCheck = new JCheckBox(text, true);
        text = GT._("Select the file format of the output file");
        outputFormatCheck.setToolTipText(text);
        outputFormatCheck.addItemListener(new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            outputFormatChanged();
            updateCommandLine();
          }
        });
        outputBox.add(outputFormatCheck);
    */
    outputBox.add(Box.createHorizontalStrut(10));
    outputFormatCombo = new JComboBox<String>();
    //case 0
    text = GT.$("N - PNG");
    outputFormatCombo.addItem(text);
    //case 1
    text = GT.$("P - PPM");
    outputFormatCombo.addItem(text);
    //case 2
    text = GT.$("C - Compressed Targa-24");
    outputFormatCombo.addItem(text);
    //case 3
    text = GT.$("T - Uncompressed Targa-24");
    outputFormatCombo.addItem(text);
    outputFormatCombo.setSelectedIndex(0);
    outputFormatCombo.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        outputFormatChanged();
        updateCommandLine();
      }
    });
    outputBox.add(outputFormatCombo);
    outputBox.add(Box.createGlue());
    povOptionsBox.add(outputBox);
    outputFormatChanged();

    // Alpha option
    Box alphaBox = Box.createHorizontalBox();
    text = GT.$("Alpha transparency");
    outputAlphaCheck = new JCheckBox(text, false);
    text = GT.$("Output Alpha transparency data");
    outputAlphaCheck.setToolTipText(text);
    outputAlphaCheck.addItemListener(new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        updateCommandLine();
      }
    });
    alphaBox.add(outputAlphaCheck);
    alphaBox.add(Box.createGlue());
    povOptionsBox.add(alphaBox);

    // Mosaic preview option
    Box mosaicBox = Box.createHorizontalBox();
    text = GT.$("Mosaic preview");
    mosaicPreviewCheck = new JCheckBox(text, false);
    text = GT.$("Render the image in several passes");
    mosaicPreviewCheck.setToolTipText(text);
    mosaicPreviewCheck.addItemListener(new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        mosaicPreviewChanged();
        updateCommandLine();
      }
    });
    mosaicBox.add(mosaicPreviewCheck);
    mosaicBox.add(Box.createHorizontalStrut(10));
    text = GT.$("Start size : ");
    mosaicPreviewStart = new JLabel(text);
    text = GT.$("Initial size of the tiles");
    mosaicPreviewStart.setToolTipText(text);
    mosaicBox.add(mosaicPreviewStart);
    mosaicPreviewComboStart = new JComboBox<String>();
    for (int power = 0; power < 8; power++) {
      mosaicPreviewComboStart
          .addItem(Integer.toString((int) Math.pow(2, power)));
    }
    mosaicPreviewComboStart.setSelectedIndex(3);
    mosaicPreviewComboStart.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        mosaicPreviewChanged();
        updateCommandLine();
      }
    });
    mosaicBox.add(mosaicPreviewComboStart);
    mosaicBox.add(Box.createHorizontalStrut(10));
    text = GT.$("End size : ");
    mosaicPreviewEnd = new JLabel(text);
    text = GT.$("Final size of the tiles");
    mosaicPreviewEnd.setToolTipText(text);
    mosaicBox.add(mosaicPreviewEnd);
    mosaicPreviewComboEnd = new JComboBox<String>();
    for (int power = 0; power < 8; power++) {
      mosaicPreviewComboEnd.addItem(Integer.toString((int) Math.pow(2, power)));
    }
    mosaicPreviewComboEnd.setSelectedIndex(0);
    mosaicPreviewComboEnd.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        mosaicPreviewChanged();
        updateCommandLine();
      }
    });
    mosaicBox.add(mosaicPreviewComboEnd);
    mosaicBox.add(Box.createGlue());
    povOptionsBox.add(mosaicBox);
    mosaicPreviewChanged();

    //GUI for povray path selection
    Box povrayPathBox = Box.createHorizontalBox();
    text = GT.$("Location of the POV-Ray Executable");
    povrayPathBox.setBorder(new TitledBorder(text));
    text = GT.$("Location of the POV-Ray Executable");
    povrayPathBox.setToolTipText(text);
    povrayPathLabel = new JTextField("");
    povrayPathLabel.setEditable(false);
    povrayPathLabel.setBorder(null);
    povrayPathBox.add(povrayPathLabel);
    text = GT.$("Select");
    povrayPathButton = new JButton(text);
    povrayPathButton.addActionListener(new ActionListener() {

      @Override
      public void actionPerformed(ActionEvent e) {
        showPovrayPathDialog();
      }
    });
    povrayPathBox.add(povrayPathButton);
    povOptionsBox.add(povrayPathBox);

    //GUI for command selection

    /*
    Box commandLineBox = Box.createVerticalBox();
    text = GT._("Command Line to Execute");
    commandLineBox.setBorder(new TitledBorder(text));
    text = GT._("The actual command which will be executed");
    commandLineBox.setToolTipText(text);
    commandLineField = new JTextField(30);
    text = GT._("The actual command which will be executed");
    commandLineField.setToolTipText(text);
    commandLineField.addActionListener(updateActionListener);
    commandLineBox.add(commandLineField);
    povOptionsBox.add(commandLineBox);
    */
    mainBox.add(povOptionsBox);

    //GUI for panel with go, cancel and stop (etc) buttons
    Box buttonBox = Box.createHorizontalBox();
    buttonBox.add(Box.createGlue());
    text = GT.$("Go!");
    goButton = new JButton(text);
    text = GT.$("Save file and possibly launch POV-Ray");
    goButton.setToolTipText(text);
    goButton.addActionListener(new ActionListener() {

      @Override
      public void actionPerformed(ActionEvent e) {
        goPressed();
      }
    });
    buttonBox.add(goButton);
    text = GT.$("Cancel");
    JButton cancelButton = new JButton(text);
    text = GT.$("Cancel this dialog without saving");
    cancelButton.setToolTipText(text);
    cancelButton.addActionListener(new ActionListener() {

      @Override
      public void actionPerformed(ActionEvent e) {
        cancelPressed();
      }
    });
    buttonBox.add(cancelButton);

    windowBox.add(mainBox);
    windowBox.add(buttonBox);

    getPathHistory();
    updateScreen();
    pack();
    centerDialog();
    setVisible(true);
  }

  /**
   * Sets the output image dimensions. Setting either to &lt;= 0 will remove the
   * height and width specification from the commandline- the resulting
   * behaviour depends on povray!
   * 
   * @param imageWidth
   *        The width of the image.
   * @param imageHeight
   *        The height of the image.
   */
  public void setImageDimensions(int imageWidth, int imageHeight) {
    outputWidth = imageWidth;
    outputHeight = imageHeight;
    updateCommandLine();
  }

  /**
   * Save or else launch povray- ie do our thang!
   */
  void goPressed() {

    // File theFile = new.getSelectedFile();
    String basename = saveField.getText();
    String filename = basename;
    String savePath = savePathLabel.getText();
    File theFile = new File(savePath, filename);
    basename = filename = theFile.getAbsolutePath();
    /*
    boolean allFrames = false;
    if (allFramesCheck != null) {
     allFrames = allFramesCheck.isSelected();   
    }
    */
    //int width = outputWidth;
    //int height = outputHeight;
    //if ((imageSizeCheck != null) && (imageSizeCheck.isSelected())) {
    int height = Integer.parseInt(imageSizeTextHeight.getValue().toString());
    int width = Integer.parseInt(imageSizeTextWidth.getValue().toString());
    //}
    Map<String, Object> params = new Hashtable<String, Object>();
    params.put("type", "Povray");
    params.put("fileName", filename);
    params.put("width", Integer.valueOf(width));
    params.put("height", Integer.valueOf(height));
    params.put("params", getINI());
    String data = vwr.generateOutputForExport(params);
    if (data == null)
      return;
    vwr.writeTextFile(filename + ".ini", data);

    // Run Povray if needed
    boolean callPovray = runPovCheck.isSelected();
    if (callPovray) {
      String[] commandLineArgs = null;
      //      if (useIniFile) {
      commandLineArgs = new String[] { povrayPathLabel.getText(),
          filename + ".ini" };
      //      } else {
      //        commandLineArgs = getCommandLineArgs();
      //      }
      try {
        Runtime.getRuntime().exec(commandLineArgs);
      } catch (java.io.IOException e) {
        Logger.errorEx("Caught IOException in povray exec", e);
        Logger.error("CmdLine:");
        for (int i = 0; i < commandLineArgs.length; i++) {
          Logger.error("  <" + commandLineArgs[i] + ">");
        }
      }
    }
    setVisible(false);
    saveHistory();
    dispose();
  }

  /**
   * Responds to cancel being press- or equivalent eg window closed.
   */
  void cancelPressed() {
    setVisible(false);
    dispose();
  }

  /**
   * Show a file selector when the savePath button is pressed.
   */
  void showSavePathDialog() {

    JFileChooser myChooser = new JFileChooser();
    myChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    int button = myChooser.showDialog(this, GT.$("Select"));
    if (button == JFileChooser.APPROVE_OPTION) {
      java.io.File newFile = myChooser.getSelectedFile();
      String savePath;
      if (newFile.isDirectory()) {
        savePath = newFile.toString();
      } else {
        savePath = newFile.getParent();
      }
      savePathLabel.setText(savePath);
      updateCommandLine();
      pack();
    }
  }

  /**
   * Show a file selector when the savePath button is pressed.
   */
  void showPovrayPathDialog() {

    JFileChooser myChooser = new JFileChooser();
    int button = myChooser.showDialog(this, GT.$("Select"));
    if (button == JFileChooser.APPROVE_OPTION) {
      java.io.File newFile = myChooser.getSelectedFile();
      povrayPathLabel.setText(newFile.toString());
      updateCommandLine();
      pack();
    }
  }

  /**
   * Called when the ImageSize check box is modified
   */
  void imageSizeChanged() {
    //if (imageSizeCheck != null) {
    boolean selected = true;//imageSizeCheck.isSelected();
    boolean enabled = true;//runPovCheck.isSelected() || useIniCheck.isSelected();
    boolean ratioSelected = false;
    //imageSizeCheck.setEnabled(enabled);
    if (imageSizeRatioBox != null) {
      ratioSelected = imageSizeRatioBox.isSelected();
      imageSizeRatioBox.setEnabled(selected && enabled);
    }
    if (imageSizeWidth != null) {
      imageSizeWidth.setEnabled(selected && enabled);
    }
    if (imageSizeTextWidth != null) {
      imageSizeTextWidth.setEnabled(selected && enabled);
    }
    if (imageSizeHeight != null) {
      imageSizeHeight.setEnabled(selected && !ratioSelected && enabled);
    }
    if (imageSizeTextHeight != null) {
      imageSizeTextHeight.setEnabled(selected && !ratioSelected && enabled);
    }
    if (imageSizeRatioCombo != null) {
      imageSizeRatioCombo.setEnabled(selected && ratioSelected && enabled);
      if ((imageSizeTextWidth != null) && (imageSizeTextHeight != null)) {
        int width = Integer.parseInt(imageSizeTextWidth.getValue().toString());
        int height;
        switch (imageSizeRatioCombo.getSelectedIndex()) {
        case 0: // Free
          break;
        case 1: // Jmol
          height = (int) (((double) width) * outputHeight / outputWidth);
          imageSizeTextHeight.setValue(Integer.valueOf(height));
          break;
        case 2: // 4/3
          height = (int) (((double) width) * 3 / 4);
          imageSizeTextHeight.setValue(Integer.valueOf(height));
          break;
        case 3: // 16/9
          height = (int) (((double) width) * 9 / 16);
          imageSizeTextHeight.setValue(Integer.valueOf(height));
          break;
        }
      }
    }
    //}
  }

  /**
   * Called when the OutputFormat check box is modified
   */
  void outputFormatChanged() {
    if (outputFormatCheck != null) {
      boolean selected = outputFormatCheck.isSelected();
      boolean enabled = true;//runPovCheck.isSelected() || useIniCheck.isSelected();
      outputFormatCheck.setEnabled(enabled);
      if (outputFormatCombo != null) {
        outputFormatCombo.setEnabled(selected && enabled);
        switch (outputFormatCombo.getSelectedIndex()) {
        case 0: // PNG
          outputExtension = ".png";
          outputFileType = "N";
          break;
        case 1: // PPM
          outputExtension = ".ppm";
          outputFileType = "P";
          break;
        case 2: // Compressed TARGA
          outputExtension = ".tga";
          outputFileType = "C";
          break;
        case 3: // uncompressed TARGA
          outputExtension = ".tga";
          outputFileType = "T";
          break;
        }
      }
    }
  }

  /**
   * Called when the MosaicPreview check box is modified
   */

  void mosaicPreviewChanged() {
    if (mosaicPreviewCheck != null) {
      boolean selected = mosaicPreviewCheck.isSelected();
      boolean enabled = runPovCheck.isSelected();// || useIniCheck.isSelected();
      mosaicPreviewCheck.setEnabled(enabled);
      if (mosaicPreviewStart != null) {
        mosaicPreviewStart.setEnabled(selected && enabled);
      }
      if (mosaicPreviewComboStart != null) {
        mosaicPreviewComboStart.setEnabled(selected && enabled);
      }
      if (mosaicPreviewEnd != null) {
        mosaicPreviewEnd.setEnabled(selected && enabled);
      }
      if (mosaicPreviewComboEnd != null) {
        mosaicPreviewComboEnd.setEnabled(selected && enabled);
      }
    }
  }

  /**
   * Update screen informations
   */
  protected void updateScreen() {

    // Call povray ?
    boolean callPovray = false;
    if (runPovCheck != null) {
      callPovray = runPovCheck.isSelected();
    }
    String text = null;
    if (callPovray) {
      text = GT.$("Go!");
    } else {
      text = GT.$("Save");
    }
    if (goButton != null) {
      goButton.setText(text);
    }

    // Use INI ?
    boolean useIni = true;
    /*    
        if (useIniCheck != null) {
          useIni = useIniCheck.isSelected();
        }
    */
    // Update state
    if (antiAliasCheck != null) {
      antiAliasCheck.setEnabled(callPovray || useIni);
    }
    if (povrayPathButton != null) {
      povrayPathButton.setEnabled(callPovray || useIni);
    }
    /*    
        if (displayWhileRenderingCheck != null) {
          displayWhileRenderingCheck.setEnabled(callPovray || useIni);
        }
        if (antiAliasCheck != null) {
          antiAliasCheck.setEnabled(callPovray || useIni);
        }
    */
    //if (commandLineField != null) {
    //  commandLineField.setEnabled(callPovray && !useIni);
    //}

    // Various update
    imageSizeChanged();
    outputFormatChanged();
    //    mosaicPreviewChanged();

    // Update command line
    updateCommandLine();
  }

  protected void updateCommandLine() {
    //if (commandLineField != null)
    // commandLineField.setText(getCommandLine());
  }

  /**
   * Generates a commandline from the options set for povray path etc and sets
   * in the textField.
   * 
   * @return command line
   */
  protected String getCommandLine() {

    // Check fields
    String basename = null;
    if (saveField != null) {
      basename = saveField.getText();
    }
    String savePath = null;
    if (savePathLabel != null) {
      savePath = savePathLabel.getText();
    }
    String povrayPath = null;
    if (povrayPathLabel != null) {
      povrayPath = povrayPathLabel.getText();
    }
    if ((savePath == null) || (povrayPath == null) || (basename == null)) {
      //if (commandLineField != null) {
      //  commandLineField.setText(GT._("null component string"));
      //}
      return "";
    }

    //Append a file separator to the savePath is necessary
    if (!savePath.endsWith(java.io.File.separator)) {
      savePath += java.io.File.separator;
    }

    String commandLine = doubleQuoteIfContainsSpace(povrayPath) + " +I"
        + simpleQuoteIfContainsSpace(savePath + basename + ".pov");

    commandLine += " +O"
        + simpleQuoteIfContainsSpace(savePath + basename + outputExtension)
        + " +F" + outputFileType;

    // Output alpha options
    if ((outputAlphaCheck != null) && (outputAlphaCheck.isSelected())) {
      commandLine += " +UA";
    }

    // Image size options
    //if ((imageSizeCheck != null) && (imageSizeCheck.isSelected())) {
    commandLine += " +H" + imageSizeTextHeight.getValue() + " +W"
        + imageSizeTextWidth.getValue();
    //} else {
    //  if ((outputWidth > 0) && (outputHeight > 0)) {
    //    commandLine +=
    // 	  " +H" + outputHeight +
    //  " +W" + outputWidth;
    //  }
    //}

    // Anti Alias
    //    if ((antiAliasCheck != null) && (antiAliasCheck.isSelected())) {
    commandLine += " +A0.1";
    //}

    // Display while rendering
    if ((displayWhileRenderingCheck != null)
        && (displayWhileRenderingCheck.isSelected())) {
      commandLine += " +D +P";
    }

    // Animation options
    if ((allFramesCheck != null) && (allFramesCheck.isSelected())) {
      commandLine += " +KFI1";
      commandLine += " +KFF" + vwr.ms.mc;
      commandLine += " +KI1";
      commandLine += " +KF" + vwr.ms.mc;
    }

    // Mosaic preview options
    if ((mosaicPreviewCheck != null) && (mosaicPreviewCheck.isSelected())) {
      commandLine += " +SP" + mosaicPreviewComboStart.getSelectedItem()
          + " +EP" + mosaicPreviewComboEnd.getSelectedItem();
    }

    commandLine += " -V"; // turn off verbose messages ... although it is still rather verbose

    return commandLine;
  }

  /**
   * Save INI file
   * 
   * @return INI data
   */

  private String getINI() {

    StringBuilder data = new StringBuilder();
    // Save path
    String savePath = savePathLabel.getText();
    if (!savePath.endsWith(java.io.File.separator)) {
      savePath += java.io.File.separator;
    }
    String basename = saveField.getText();

    // Input file
    data.append("Input_File_Name=" + savePath + basename + "\n");

    // Output format options
    data.append("Output_to_File=true\n");
    data.append("Output_File_Type=" + outputFileType + "\n");
    data.append("Output_File_Name=" + savePath + basename + outputExtension
        + "\n");

    // Image size options
    data.append("Height=" + imageSizeTextHeight.getValue() + "\n");
    data.append("Width=" + imageSizeTextWidth.getValue() + "\n");

    // Animation options
    if ((allFramesCheck != null) && (allFramesCheck.isSelected())) {
      data.append("Initial_Frame=1\n");
      data.append("Final_Frame=" + vwr.ms.mc + "\n");
      data.append("Initial_Clock=1\n");
      data.append("Final_Clock=" + vwr.ms.mc + "\n");
    }

    // Output alpha options
    if ((outputAlphaCheck != null) && (outputAlphaCheck.isSelected())) {
      data.append("Output_Alpha=true\n");
    }

    // Anti Alias
    data.append("Antialias=true\n");
    data.append("Antialias_Threshold=0.1\n");

    // Display while rendering
    if ((displayWhileRenderingCheck != null)
        && (displayWhileRenderingCheck.isSelected())) {
      data.append("Display=true\n");
      data.append("Pause_When_Done=true\n");
    }

    // Mosaic preview options
    if ((mosaicPreviewCheck != null) && (mosaicPreviewCheck.isSelected())) {
      data.append("Preview_Start_Size="
          + mosaicPreviewComboStart.getSelectedItem() + "\n");
      data.append("Preview_End_Size=" + mosaicPreviewComboEnd.getSelectedItem()
          + "\n");
    }

    data.append("Warning_Level=5\n");
    data.append("Verbose=false\n");
    return data.toString();
  }

  /**
   * @return Command line split into arguments
   */
  /*
    private String[] getCommandLineArgs() {
    	
      //Parsing command line
      String commandLine = commandLineField.getText();
      List vector = new List();
      int begin = 0;
      int end = 0;
      int doubleQuoteCount = 0;
      while (end < commandLine.length()) {
        if (commandLine.charAt(end) == '\"') {
          doubleQuoteCount++;
        }
        if (Character.isSpaceChar(commandLine.charAt(end))) {
          while ((begin < end) &&
                 (Character.isSpaceChar(commandLine.charAt(begin)))) {
            begin++;
          }
          if (end > begin + 1) {
            if (doubleQuoteCount % 2 == 0) {
              vector.add(commandLine.substring(begin, end));
              begin = end;
            }
          }
        }
        end++;
      }
      while ((begin < end) &&
             (Character.isSpaceChar(commandLine.charAt(begin)))) {
        begin++;
      }
      if (end > begin + 1) {
        vector.add(commandLine.substring(begin, end));
      }
      
      //Construct result
      String[] args = new String[vector.size()];
      for (int pos = 0; pos < vector.size(); pos++) {
        args[pos] = vector.get(pos).toString();
        if ((args[pos].charAt(0) == '\"') &&
            (args[pos].charAt(args[pos].length() - 1) == '\"')) {
          args[pos] = args[pos].substring(1, args[pos].length() - 1);
        }
      }
      return args;
    }
  */
  /**
   * Centers the dialog on the screen.
   */
  protected void centerDialog() {

    Dimension screenSize = this.getToolkit().getScreenSize();
    Dimension size = this.getSize();
    screenSize.height = screenSize.height / 2;
    screenSize.width = screenSize.width / 2;
    size.height = size.height / 2;
    size.width = size.width / 2;
    int y = screenSize.height - size.height;
    int x = screenSize.width - size.width;
    this.setLocation(x, y);
  }

  /**
   * Listener for responding to dialog window events.
   */
  class PovrayWindowListener extends WindowAdapter {

    /**
     * Closes the dialog when window closing event occurs.
     * 
     * @param e
     *        Event
     */
    @Override
    public void windowClosing(WindowEvent e) {
      cancelPressed();
      setVisible(false);
      dispose();
    }
  }

  /**
   * Just recovers the path settings from last session.
   */
  private void getPathHistory() {

    java.util.Properties props = JmolPanel.historyFile.getProperties();
    if (povrayPathLabel != null) {
      String povrayPath = props.getProperty("povrayPath",
          System.getProperty("user.home"));
      if (povrayPath != null) {
        povrayPathLabel.setText(povrayPath);
      }
    }
    if (savePathLabel != null) {
      String savePath = props.getProperty("povraySavePath",
          System.getProperty("user.home"));
      if (savePath != null) {
        savePathLabel.setText(savePath);
      }
    }
  }

  /**
   * Just saves the path settings from this session.
   */
  private void saveHistory() {
    java.util.Properties props = new java.util.Properties();
    props.setProperty("povrayPath", povrayPathLabel.getText());
    props.setProperty("povraySavePath", savePathLabel.getText());
    JmolPanel.historyFile.addProperties(props);
  }

  String doubleQuoteIfContainsSpace(String str) {
    for (int i = str.length(); --i >= 0;)
      if (str.charAt(i) == ' ')
        return "\"" + str + "\"";
    return str;
  }

  String simpleQuoteIfContainsSpace(String str) {
    for (int i = str.length(); --i >= 0;)
      if (str.charAt(i) == ' ')
        return "\'" + str + "\'";
    return str;
  }
}