/*
 * Jalview - A Sequence Alignment Editor and Viewer
 * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

package jalview.appletgui;

import java.io.*;
import java.util.*;

import java.awt.*;
import java.awt.event.*;

import jalview.datamodel.*;
import jalview.jbappletgui.*;
import jalview.schemes.*;

public class UserDefinedColours
    extends GUserDefinedColours
{

  AlignmentPanel ap;
  SequenceGroup seqGroup;
  Button selectedButton;
  Vector oldColours = new Vector();
  ColourSchemeI oldColourScheme;
  Frame frame;

  int R = 0, G = 0, B = 0;

  public ColourSchemeI loadDefaultColours()
  {
    // NOT IMPLEMENTED YET IN APPLET VERSION
    return null;
  }

  public UserDefinedColours(AlignmentPanel ap, SequenceGroup sg)
  {
    super();
    frame = new Frame();
    frame.add(this);
    jalview.bin.JalviewLite.addFrame(frame, "User defined colours", 420, 345);

    if (sg != null)
    {
      frame.setTitle(frame.getTitle() + " (" + sg.getName() + ")");
    }

    this.ap = ap;
    seqGroup = sg;

    if (seqGroup != null)
    {
      oldColourScheme = seqGroup.cs;
    }
    else
    {
      oldColourScheme = ap.av.getGlobalColourScheme();
    }

    for (int i = 0; i < 20; i++)
    {
      makeButton(ResidueProperties.aa2Triplet.get(ResidueProperties.aa[i]) +
                 "", ResidueProperties.aa[i]);
    }

    makeButton("B", "B");
    makeButton("Z", "Z");
    makeButton("X", "X");
    makeButton("Gap", "'.','-',' '");

  }

  protected void rText_actionPerformed(ActionEvent e)
  {
    try
    {
      int i = Integer.parseInt(rText.getText());
      rScroller.setValue(i);
    }
    catch (NumberFormatException ex)
    {}
  }

  protected void gText_actionPerformed(ActionEvent e)
  {
    try
    {
      int i = Integer.parseInt(gText.getText());
      gScroller.setValue(i);
    }
    catch (NumberFormatException ex)
    {}

  }

  protected void bText_actionPerformed(ActionEvent e)
  {
    try
    {
      int i = Integer.parseInt(bText.getText());
      bScroller.setValue(i);
    }
    catch (NumberFormatException ex)
    {}

  }

  protected void rScroller_adjustmentValueChanged(AdjustmentEvent e)
  {
    R = rScroller.getValue();
    rText.setText(R + "");
    colourChanged();
  }

  protected void gScroller_adjustmentValueChanged(AdjustmentEvent e)
  {
    G = gScroller.getValue();
    gText.setText(G + "");
    colourChanged();
  }

  protected void bScroller_adjustmentValueChanged(AdjustmentEvent e)
  {
    B = bScroller.getValue();
    bText.setText(B + "");
    colourChanged();
  }

  public void colourChanged()
  {
    Color col = new Color(R, G, B);
    target.setBackground(col);

    if (selectedButton != null)
    {
      selectedButton.setBackground(col);
    }
  }

  public void colourButtonPressed(MouseEvent e)
  {
    selectedButton = (Button) e.getSource();
    Color col = selectedButton.getBackground();
    R = col.getRed();
    G = col.getGreen();
    B = col.getBlue();
    rScroller.setValue(R);
    gScroller.setValue(G);
    bScroller.setValue(B);
    rText.setText(R + "");
    gText.setText(G + "");
    bText.setText(B + "");

    colourChanged();
  }

  void makeButton(String label, String aa)
  {
    final Button button = new Button();
    Color col = Color.white;

    try
    {
      col = oldColourScheme.findColour(aa, -1);
    }
    catch (Exception ex)
    {}

    button.setBackground(col);
    oldColours.addElement(col);
    button.setLabel(label);
    button.setForeground(col.darker().darker().darker());
    button.setFont(new java.awt.Font("Verdana", 1, 10));
    button.addMouseListener(new java.awt.event.MouseAdapter()
    {
      public void mouseClicked(MouseEvent e)
      {
        colourButtonPressed(e);
      }
    });

    buttonPanel.add(button, null);
  }

  protected void okButton_actionPerformed(ActionEvent e)
  {
    applyButton_actionPerformed(null);
    frame.setVisible(false);
  }

  protected void applyButton_actionPerformed(ActionEvent e)
  {

    Color[] newColours = new Color[24];
    for (int i = 0; i < 24; i++)
    {
      Button button = (Button) buttonPanel.getComponent(i);
      newColours[i] = button.getBackground();
    }

    UserColourScheme ucs = new UserColourScheme(newColours);
    ucs.setThreshold(0, ap.av.getIgnoreGapsConsensus());

    if (seqGroup != null)
    {
      seqGroup.cs = ucs;
    }
    else
    {
      ap.av.setGlobalColourScheme(ucs);
    }

    ap.repaint();
  }


  protected void cancelButton_actionPerformed(ActionEvent e)
  {

    Color[] newColours = new Color[24];
    for (int i = 0; i < 24; i++)
    {
      newColours[i] = (Color) oldColours.elementAt(i);
      buttonPanel.getComponent(i).setBackground(newColours[i]);
    }

    UserColourScheme ucs = new UserColourScheme(newColours);

    if (seqGroup != null)
    {
      seqGroup.cs = ucs;
    }
    else
    {
      ap.av.setGlobalColourScheme(ucs);
    }

    ap.repaint();

    frame.setVisible(false);
  }

}