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


1 /*
2  * ToolTipPainter.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 ToolTipPainter 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 ToolTipPainter 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 ToolTipPainter would be created. For the moment at least,
36 //however, all are created for each instance.
37 private Color color1 = decodeColor("nimbusBorder", 0.0f, 0.0f, 0.0f, 0);
38     private Color color2 = decodeColor("info", 0.0f, 0.0f, 0.0f, 0);
39
40
41     //Array of current component colors, updated in each paint call
42 private Object JavaDoc[] componentColors;
43
44     public ToolTipPainter(PaintContext ctx, int state) {
45         super();
46         this.state = state;
47         this.ctx = ctx;
48     }
49
50     @Override JavaDoc
51     protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object JavaDoc[] extendedCacheKeys) {
52         //populate componentColors array with colors calculated in getExtendedCacheKeys call
53 componentColors = extendedCacheKeys;
54         //generate this entire method. Each state/bg/fg/border combo that has
55 //been painted gets its own KEY and paint method.
56 switch(state) {
57             case BACKGROUND_ENABLED: paintBackgroundEnabled(g); break;
58
59         }
60     }
61         
62
63
64     @Override JavaDoc
65     protected final PaintContext getPaintContext() {
66         return ctx;
67     }
68
69     private void paintBackgroundEnabled(Graphics2D g) {
70         rect = decodeRect1();
71         g.setPaint(color1);
72         g.fill(rect);
73         rect = decodeRect2();
74         g.setPaint(color1);
75         g.fill(rect);
76         rect = decodeRect3();
77         g.setPaint(color1);
78         g.fill(rect);
79         rect = decodeRect4();
80         g.setPaint(color1);
81         g.fill(rect);
82         rect = decodeRect5();
83         g.setPaint(color2);
84         g.fill(rect);
85
86     }
87
88
89
90     private Rectangle2D decodeRect1() {
91             rect.setRect(decodeX(2.0f), //x
92 decodeY(1.0f), //y
93 decodeX(3.0f) - decodeX(2.0f), //width
94 decodeY(2.0f) - decodeY(1.0f)); //height
95 return rect;
96     }
97
98     private Rectangle2D decodeRect2() {
99             rect.setRect(decodeX(0.0f), //x
100 decodeY(1.0f), //y
101 decodeX(1.0f) - decodeX(0.0f), //width
102 decodeY(2.0f) - decodeY(1.0f)); //height
103 return rect;
104     }
105
106     private Rectangle2D decodeRect3() {
107             rect.setRect(decodeX(0.0f), //x
108 decodeY(2.0f), //y
109 decodeX(3.0f) - decodeX(0.0f), //width
110 decodeY(3.0f) - decodeY(2.0f)); //height
111 return rect;
112     }
113
114     private Rectangle2D decodeRect4() {
115             rect.setRect(decodeX(0.0f), //x
116 decodeY(0.0f), //y
117 decodeX(3.0f) - decodeX(0.0f), //width
118 decodeY(1.0f) - decodeY(0.0f)); //height
119 return rect;
120     }
121
122     private Rectangle2D decodeRect5() {
123             rect.setRect(decodeX(1.0f), //x
124 decodeY(1.0f), //y
125 decodeX(2.0f) - decodeX(1.0f), //width
126 decodeY(2.0f) - decodeY(1.0f)); //height
127 return rect;
128     }
129
130
131
132
133 }
134
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