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40
41 package java2d.demos.Paint;
42
43
44 import java.awt.*;
45 import java.awt.font.*;
46 import java.awt.event.*;
47 import java.awt.geom.Rectangle2D  ;
48 import javax.swing.*;
49 import java2d.ControlsSurface;
50 import java2d.CustomControls;
51
52 import static java.awt.Color .*;
53
54
55
56 public class Gradient extends ControlsSurface {
57
58 protected Color innerC, outerC;
59 private DemoControls controls;
60
61
62 public Gradient() {
63 setBackground(white);
64 innerC = green;
65 outerC = blue;
66 setControls(new Component[] { new DemoControls(this) });
67 }
68
69
70 public void render(int w, int h, Graphics2D g2) {
71
72 int w2 = w/2;
73 int h2 = h/2;
74 g2.setPaint(new GradientPaint(0,0,outerC,w*.35f,h*.35f,innerC));
75 g2.fillRect(0, 0, w2, h2);
76 g2.setPaint(new GradientPaint(w,0,outerC,w*.65f,h*.35f,innerC));
77 g2.fillRect(w2, 0, w2, h2);
78 g2.setPaint(new GradientPaint(0,h,outerC,w*.35f,h*.65f,innerC));
79 g2.fillRect(0, h2, w2, h2);
80 g2.setPaint(new GradientPaint(w,h,outerC,w*.65f,h*.65f,innerC));
81 g2.fillRect(w2, h2, w2, h2);
82
83 g2.setColor(black);
84 TextLayout tl = new TextLayout(
85 "GradientPaint", g2.getFont(), g2.getFontRenderContext());
86 tl.draw(g2, (int) (w/2-tl.getBounds().getWidth()/2),
87 (int) (h/2+tl.getBounds().getHeight()/2));
88 }
89
90
91 public static void main(String s[]) {
92 createDemoFrame(new Gradient());
93 }
94
95
96 static class DemoControls extends CustomControls implements ActionListener {
97
98 Gradient demo;
99 Color colors[] =
100 { red, orange, yellow, green, blue, lightGray, cyan, magenta };
101 String colorName[] =
102 { "Red", "Orange", "Yellow", "Green",
103 "Blue", "lightGray", "Cyan", "Magenta" };
104
105 JMenuItem innerMI[] = new JMenuItem[colors.length];
106 JMenuItem outerMI[] = new JMenuItem[colors.length];
107 ColoredSquare squares[] = new ColoredSquare[colors.length];
108 JMenu imenu, omenu;
109
110 public DemoControls(Gradient demo) {
111 super(demo.name);
112 this.demo = demo;
113 JMenuBar inMenuBar = new JMenuBar();
114 add(inMenuBar);
115 JMenuBar outMenuBar = new JMenuBar();
116 add(outMenuBar);
117 Font font = new Font("serif", Font.PLAIN, 10);
118
119 imenu = (JMenu) inMenuBar.add(new JMenu("Inner Color"));
120 imenu.setFont(font);
121 imenu.setIcon(new ColoredSquare(demo.innerC));
122 omenu = (JMenu) outMenuBar.add(new JMenu("Outer Color"));
123 omenu.setFont(font);
124 omenu.setIcon(new ColoredSquare(demo.outerC));
125 for (int i = 0; i < colors.length; i++) {
126 squares[i] = new ColoredSquare(colors[i]);
127 innerMI[i] = imenu.add(new JMenuItem(colorName[i]));
128 innerMI[i].setFont(font);
129 innerMI[i].setIcon(squares[i]);
130 innerMI[i].addActionListener(this);
131 outerMI[i] = omenu.add(new JMenuItem(colorName[i]));
132 outerMI[i].setFont(font);
133 outerMI[i].setIcon(squares[i]);
134 outerMI[i].addActionListener(this);
135 }
136 }
137
138
139 public void actionPerformed(ActionEvent e) {
140 for (int i = 0; i < colors.length; i++) {
141 if (e.getSource().equals(innerMI[i])) {
142 demo.innerC = colors[i];
143 imenu.setIcon(squares[i]);
144 break;
145 } else if (e.getSource().equals(outerMI[i])) {
146 demo.outerC = colors[i];
147 omenu.setIcon(squares[i]);
148 break;
149 }
150 }
151 demo.repaint();
152 }
153
154
155 public Dimension getPreferredSize() {
156 return new Dimension(200,37);
157 }
158
159
160 public void run() {
161 if (demo.getImageType() <= 1) {
163 demo.setImageType(2);
164 }
165 Thread me = Thread.currentThread();
166 while (thread == me) {
167 for (int i = 0; i < innerMI.length; i++) {
168 if (i != 4) {
169 try {
170 thread.sleep(4444);
171 } catch (InterruptedException e) { return; }
172 innerMI[i].doClick();
173 }
174 }
175 }
176 thread = null;
177 }
178
179
180 class ColoredSquare implements Icon {
181 Color color;
182 public ColoredSquare(Color c) {
183 this.color = c;
184 }
185
186 public void paintIcon(Component c, Graphics g, int x, int y) {
187 Color oldColor = g.getColor();
188 g.setColor(color);
189 g.fill3DRect(x,y,getIconWidth(), getIconHeight(), true);
190 g.setColor(oldColor);
191 }
192 public int getIconWidth() { return 12; }
193 public int getIconHeight() { return 12; }
194 } } } |
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