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Java > Open Source Codes > com > sun > java > swing > plaf > nimbus > SplitPanePainter


1 /*
2  * SplitPanePainter.java %E%
3  *
4  * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
5  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6  */
7 package com.sun.java.swing.plaf.nimbus;
8
9 import java.awt.*;
10 import java.awt.geom.*;
11 import java.awt.image.*;
12 import javax.swing.*;
13 import com.sun.java.swing.Painter;
14
15 /**
16  */
17 public final class SplitPanePainter extends AbstractRegionPainter {
18     //package private integers representing the available states that
19 //this painter will paint. These are used when creating a new instance
20 //of SplitPanePainter to determine which region/state is being painted
21 //by that instance.
22 static final int BACKGROUND_ENABLED = 1;
23
24
25     private int state; //refers to one of the static final ints above
26 private PaintContext ctx;
27
28     //the following 4 variables are reused during the painting code of the layers
29 private Path2D path = new Path2D.Float();
30     private Rectangle2D rect = new Rectangle2D.Float(0, 0, 0, 0);
31     private RoundRectangle2D roundRect = new RoundRectangle2D.Float(0, 0, 0, 0, 0, 0);
32     private Ellipse2D ellipse = new Ellipse2D.Float(0, 0, 0, 0);
33
34     //All Colors used for painting are stored here. Ideally, only those colors being used
35 //by a particular instance of SplitPanePainter would be created. For the moment at least,
36 //however, all are created for each instance.
37
38
39     //Array of current component colors, updated in each paint call
40 private Object JavaDoc[] componentColors;
41
42     public SplitPanePainter(PaintContext ctx, int state) {
43         super();
44         this.state = state;
45         this.ctx = ctx;
46     }
47
48     @Override JavaDoc
49     protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object JavaDoc[] extendedCacheKeys) {
50         //populate componentColors array with colors calculated in getExtendedCacheKeys call
51 componentColors = extendedCacheKeys;
52         //generate this entire method. Each state/bg/fg/border combo that has
53 //been painted gets its own KEY and paint method.
54 switch(state) {
55
56         }
57     }
58         
59
60
61     @Override JavaDoc
62     protected final PaintContext getPaintContext() {
63         return ctx;
64     }
65
66
67
68
69
70
71 }
72
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