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40
41 package java2d;
42
43 import static java.awt.Color  .*;
44 import java.awt.*;
45 import java.awt.geom.Ellipse2D ;
46 import java.awt.image.BufferedImage ;
47 import java.awt.event.MouseListener ;
48 import java.awt.event.MouseEvent ;
49 import java.awt.font.TextLayout ;
50 import java.awt.font.FontRenderContext ;
51 import javax.swing.JPanel ;
52 import javax.swing.border.TitledBorder ;
53 import javax.swing.border.EtchedBorder ;
54 import java.awt.event.WindowEvent ;
55 import java.awt.event.WindowAdapter ;
56
57
58
62 public class TextureChooser extends JPanel {
63
64 static public Object texture = getGeomTexture();
65 public int num;
66
67 public TextureChooser(int num) {
68 this.num = num;
69 setLayout(new GridLayout(0,2,5,5));
70 setBorder(new TitledBorder (new EtchedBorder (), "Texture Chooser"));
71
72 add(new Surface( getGeomTexture(), this, 0));
73 add(new Surface( getImageTexture(), this, 1));
74 add(new Surface( getTextTexture(), this, 2));
75 add(new Surface(getGradientPaint(), this, 3));
76 }
77
78
79 static public TexturePaint getGeomTexture() {
80 BufferedImage bi = new BufferedImage (5, 5, BufferedImage.TYPE_INT_RGB);
81 Graphics2D tG2 = bi.createGraphics();
82 tG2.setBackground(WHITE);
83 tG2.clearRect(0,0,5,5);
84 tG2.setColor(new Color (211,211,211,200));
85 tG2.fill(new Ellipse2D.Float (0,0,5,5));
86 Rectangle r = new Rectangle(0,0,5,5);
87 return new TexturePaint(bi,r);
88 }
89
90 public TexturePaint getImageTexture() {
91 Image img = DemoImages.getImage("java-logo.gif", this);
92 int iw = img.getWidth( this);
93 int ih = img.getHeight(this);
94 BufferedImage bi = new BufferedImage (iw, ih, BufferedImage.TYPE_INT_RGB);
95 Graphics2D tG2 = bi.createGraphics();
96 tG2.drawImage(img, 0, 0, this);
97 Rectangle r = new Rectangle(0,0,iw,ih);
98 return new TexturePaint(bi,r);
99 }
100
101
102 public TexturePaint getTextTexture() {
103 Font f = new Font("Times New Roman", Font.BOLD, 10);
104 TextLayout tl = new TextLayout ("Java2D", f, new FontRenderContext (null, false, false));
105 int sw = (int) tl.getBounds().getWidth();
106 int sh = (int) (tl.getAscent()+tl.getDescent());
107 BufferedImage bi = new BufferedImage (sw, sh, BufferedImage.TYPE_INT_RGB);
108 Graphics2D tG2 = bi.createGraphics();
109 tG2.setBackground(WHITE);
110 tG2.clearRect(0,0,sw,sh);
111 tG2.setColor(LIGHT_GRAY);
112 tl.draw(tG2, 0, (float) tl.getAscent());
113 Rectangle r = new Rectangle(0,0,sw,sh);
114 return new TexturePaint(bi,r);
115 }
116
117
118 public GradientPaint getGradientPaint() {
119 return new GradientPaint(0,0,WHITE,80,0,GREEN);
120 }
121
122 public class Surface extends JPanel implements MouseListener {
123
124 public boolean clickedFrame;
125 private int num;
126 private TextureChooser tc;
127 private boolean enterExitFrame = false;
128 private Object t;
129
130 public Surface(Object t, TextureChooser tc, int num) {
131 setBackground(WHITE);
132 this.t = t;
133 this.tc = tc;
134 this.clickedFrame = (num == tc.num);
135 this.num = num;
136 if (num == tc.num)
137 tc.texture = t;
138 addMouseListener(this);
139 }
140
141 public void paintComponent(Graphics g) {
142 super.paintComponent(g);
143 Graphics2D g2 = (Graphics2D) g;
144 int w = getSize().width;
145 int h = getSize().height;
146 if (t instanceof TexturePaint)
147 g2.setPaint((TexturePaint) t);
148 else {
149 g2.setPaint((GradientPaint) t);
150 }
151 g2.fill(new Rectangle(0,0,w,h));
152 if (clickedFrame || enterExitFrame) {
153 g2.setColor(GRAY);
154 BasicStroke bs = new BasicStroke(3, BasicStroke.CAP_BUTT,
155 BasicStroke.JOIN_MITER);
156 g2.setStroke(bs);
157 g2.drawRect(0,0,w-1,h-1);
158 tc.num = num;
159 }
160 }
161
162 public void mouseClicked(MouseEvent e) {
163 tc.texture = t;
164 clickedFrame = true;
165
166 for (Component comp : tc.getComponents()) {
167 if (comp instanceof Surface) {
168 Surface surf = (Surface) comp;
169 if (!surf.equals(this) && surf.clickedFrame) {
170 surf.clickedFrame = false;
171 surf.repaint();
172 }
173 }
174 }
175
176 if (Java2Demo.controls.textureCB.isSelected()) {
178 Java2Demo.controls.textureCB.doClick();
179 Java2Demo.controls.textureCB.doClick();
180 }
181 }
182
183 public void mousePressed(MouseEvent e) {
184 }
185
186 public void mouseReleased(MouseEvent e) {
187 }
188
189 public void mouseEntered(MouseEvent e) {
190 enterExitFrame = true;
191 repaint();
192 }
193
194 public void mouseExited(MouseEvent e) {
195 enterExitFrame = false;
196 repaint();
197 }
198
199 public Dimension getMinimumSize() {
200 return getPreferredSize();
201 }
202
203 public Dimension getMaximumSize() {
204 return getPreferredSize();
205 }
206
207 public Dimension getPreferredSize() {
208 return new Dimension(30,30);
209 }
210
211 }
212
213 public static void main(String s[]) {
214 Frame f = new Frame("Java2D Demo - TextureChooser");
215 f.addWindowListener(new WindowAdapter () {
216 public void windowClosing(WindowEvent e) {System.exit(0);}
217 });
218 f.add("Center", new TextureChooser(0));
219 f.pack();
220 f.setSize(new Dimension(400,400));
221 f.setVisible(true);
222 }
223 }
224 |
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