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40
41 package java2d.demos.Composite;
42
43 import java.awt.*;
44 import java.awt.geom.Ellipse2D  ;
45 import java.awt.geom.Rectangle2D ;
46 import java.awt.geom.RoundRectangle2D ;
47 import java.awt.font.TextLayout ;
48 import java.awt.font.FontRenderContext ;
49 import java2d.Surface;
50
51 import static java.awt.Color .*;
52
53
56 public class ACimages extends Surface {
57
58 private static String s[] = { "box", "fight", "magnify",
59 "boxwave", "globe", "snooze",
60 "tip", "thumbsup", "dukeplug"};
61 private static Image imgs[] = new Image[s.length];
62 private static Color colors[] = { BLUE, CYAN, GREEN,
63 MAGENTA, ORANGE, PINK, RED, YELLOW, LIGHT_GRAY };
64
65
66 public ACimages() {
67 setBackground(WHITE);
68 for (int i = 0; i < imgs.length; i++) {
69 imgs[i] = getImage(s[i] + ".gif");
70 }
71 }
72
73
74 public void render(int w, int h, Graphics2D g2) {
75
76 float alpha = 0.0f;
77 int iw = w/3;
78 int ih = (h-45)/3;
79 float xx = 0, yy = 15;
80
81 for (int i =0; i < imgs.length; i++) {
82
83 xx = (i%3 == 0) ? 0 : xx+w/3;
84 switch (i) {
85 case 3 : yy = h/3+15; break;
86 case 6 : yy = h/3*2+15;
87 }
88
89 g2.setComposite(AlphaComposite.SrcOver);
90 g2.setColor(BLACK);
91 AlphaComposite ac = AlphaComposite.SrcOver.derive(alpha += .1f);
92 String s = "a=" + Float.toString(alpha).substring(0,3);
93 new TextLayout (s,g2.getFont(), g2.getFontRenderContext()).draw(g2, xx+3, yy-2);
94
95 Shape shape=null;
96
97 switch (i%3) {
98 case 0 : shape = new Ellipse2D.Float (xx, yy, iw, ih);
99 break;
100 case 1 : shape = new RoundRectangle2D.Float (xx, yy, iw, ih, 25, 25);
101 break;
102 case 2 : shape = new Rectangle2D.Float (xx, yy, iw, ih);
103 break;
104 }
105 g2.setColor(colors[i]);
106 g2.setComposite(ac);
107 g2.fill(shape);
108 g2.drawImage(imgs[i], (int) xx, (int) yy, iw, ih, null);
109 }
110 }
111
112
113 public static void main(String s[]) {
114 createDemoFrame(new ACimages());
115 }
116 }
117 |
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