file/CbColorButton.java

   1 import java.awt.*;
   2 import java.util.*;
   3
   4 /**A component for choosing a color
   5  */
   6 public class CbColorButton extends Panel implements CbButtonCallback,
   7                                                     CbColorWindowCallback
   8 {
   9         Color col;
  10         CbButton but;
  11         Vector pal;
  12         Image swatch = Util.createImage(32, 16);
  13         Graphics g = swatch.getGraphics();
  14         CbColorWindow win;
  15
  16         CbColorButton(Color c)
  17         {
  18         this(c, new Vector());
  19         }
  20
  21         CbColorButton(Color c, Vector p)
  22         {
  23         if (c == null) c = Color.black;
  24         col = c;
  25         g.setColor(col); g.fillRect(0, 0, 32, 16);
  26         setLayout(new BorderLayout());
  27         add("Center", but = new CbButton(swatch, this));
  28         }
  29
  30         public void click(CbButton b)
  31         {
  32         if (win == null)
  33                 win = new CbColorWindow(col, this);
  34         }
  35
  36         public void chosen(CbColorWindow w, Color c)
  37         {
  38         if (c != null) {
  39                 col = c;
  40                 g.setColor(col); g.fillRect(0, 0, 32, 16);
  41                 but.repaint();
  42                 }
  43         win = null;
  44         }
  45
  46         public Vector palette(CbColorWindow w)
  47         {
  48         return pal;
  49         }
  50 }
  51