package jalview.appletgui;

import jalview.jbappletgui.GUserDefinedColours;
import jalview.datamodel.*;
import jalview.schemes.*;
import jalview.io.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;


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 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();
    ucs.setThreshold(0);
    ucs.setColourScheme( newColours );

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

    ap.repaint();
  }


  public static UserColourScheme loadDefaultColours(String file)
  {
    UserColourScheme ucs = null;
    try
    {
      BufferedReader in = new BufferedReader(new FileReader(file));
      Color [] newColours = new Color[24];
      for (int i = 0; i < 24; i++)
      {
        newColours[i] = new Color(Integer.parseInt(in.readLine()));
      }

      ucs = new UserColourScheme();
      ucs.setThreshold(0);
      ucs.setColourScheme(newColours);

    }
    catch (Exception ex)
    {}

    return ucs;
  }


  protected void cancelButton_actionPerformed(ActionEvent e)
  {
    UserColourScheme ucs = new UserColourScheme();
    Color [] newColours = new Color[24];
    for(int i=0; i<24; i++)
    {
          newColours[i] = (Color)oldColours.elementAt(i);
          buttonPanel.getComponent(i).setBackground(newColours[i]);
    }

    ucs.setColourScheme( newColours );
    if (seqGroup != null)
      seqGroup.cs = ucs;
    else
      ap.av.setGlobalColourScheme(ucs);

    ap.repaint();

    frame.setVisible(false);
  }


}