ColorTreeCellRenderer.java :  » XML-UI » xui32 » com » xoetrope » svgscanner » color » Java Open Source

package com.xoetrope.svgscanner.color;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.SystemColor;
import java.awt.event.MouseEvent;
import javax.swing.JToolTip;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
import net.xoetrope.swing.tree.XTreeModelAdapter;

public class ColorTreeCellRenderer extends DefaultTreeCellRenderer
{
  private Color backgroundColor = Color.blue;
  private String fontSize = "10";
  private ColorMapping colorMapping;
  
  private int colorMode;

  public ColorTreeCellRenderer( int mode )
  {
    colorMode = mode;
    setToolTipText( "Colors" );
    
    closedIcon = null;
    openIcon = null;
    leafIcon = null;
  }
  
  public Component getTreeCellRendererComponent( JTree tree, Object value, 
                                                 boolean sel, boolean expanded, 
                                                 boolean leaf, int row, 
                                                 boolean hasFocus ) 
  {
    if (( value != null ) && ( value instanceof XTreeModelAdapter )) {
      Object obj = ((XTreeModelAdapter)value).getModel().get();
      if ( obj instanceof ColorMapping )
        colorMapping = (ColorMapping)obj;
      else
        colorMapping = null;
    }
    
    return super.getTreeCellRendererComponent( tree, value, sel, expanded, leaf, row, hasFocus );
  }
 

  /**
   * Render the cell by drawing the text and then two colour swatches and the font size
   * @param g
   */
  public void paint( Graphics g )
  {
    super.paint( g );

    if (( backgroundColor != null ) && ( colorMapping != null )) {
      int width = getWidth();
      int height = getHeight();
      g.setColor( Color.white );
      g.drawRect( width - 32 + 9 - 2 * height, 3, height - 6, height - 6 );
      
      g.setColor( backgroundColor );
      g.fillRect( width - 32 + 10 - 2 * height, 4, height - 7, height - 7 );
    }
  }

  /**
   * Overrides <code>DefaultTreeCellRenderer.getPreferredSize</code> to
   * return slightly wider preferred size value.
   */
  public Dimension getPreferredSize()
  {
    Dimension retDimension = super.getPreferredSize();

    if ( retDimension != null )
      retDimension = new Dimension( Math.max( retDimension.width + 2 * retDimension.height + 32, 100 ),
                                    retDimension.height );
    return retDimension;
  }

  public void setText( String str )
  {
    if ( str.length() == 0 ) {
      super.setText( str );
      backgroundColor = null;
    }
    else if ( colorMapping != null ) {
      String text =( colorMode == HsbColorComparator.COMPARE_COLORIZED ) ? colorMapping.getColorizedColor() : colorMapping.getOriginalColor();
      backgroundColor = ( colorMode == HsbColorComparator.COMPARE_COLORIZED ) ? colorMapping.getColorized() : colorMapping.getOriginal();
      float[] bHSB = new float[ 3 ];
      backgroundColor.RGBtoHSB( backgroundColor.getRed(), backgroundColor.getGreen(), backgroundColor.getBlue(), bHSB );

      int h = (int)(255*bHSB[ 0 ]);
      int s = (int)(255*bHSB[ 1 ]);
      int b = (int)(255*bHSB[ 2 ]);
      int a = backgroundColor.getAlpha();
      String hsba = (( h < 16 ) ? "0" : "" ) + Integer.toString( h, 16 ) + 
          (( s < 16 ) ? "0" : "" ) + Integer.toString( s, 16 ) + 
          (( b < 16 ) ? "0" : "" ) + Integer.toString( b, 16 ) + 
          (( a < 16 ) ? "0" : "" ) + ( a != 255 ? Integer.toString( a, 16 ) : "" );
      
      super.setText( text + " " + hsba.toUpperCase() );
    }
    else 
      super.setText( str );
  }
  
  
  /**
   * Subclass the tooltip to allow the colours to be changed
   */
  class ColorToolTip extends JToolTip
  {
    public ColorToolTip()
    {
    }

    public void paintComponent( Graphics g )
    {
      g.setColor( getForeground());
      super.paintComponent( g );
    }
  }
}