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40
41 package java2d.demos.Clipping;
42
43 import java.awt.*;
44 import java.awt.event.*;
45 import java.awt.image.BufferedImage  ;
46 import java.awt.geom.Line2D ;
47 import java.awt.geom.AffineTransform ;
48 import java.awt.image.BufferedImage ;
49 import java.awt.font.TextLayout ;
50 import java.awt.font.FontRenderContext ;
51 import javax.swing.*;
52 import java2d.ControlsSurface;
53 import java2d.CustomControls;
54
55 import static java.awt.Color .*;
56
57
58
61 public class Text extends ControlsSurface {
62
63 static Image img;
64 static TexturePaint texture;
65 static {
66 BufferedImage bi = new BufferedImage (5, 5, BufferedImage.TYPE_INT_RGB);
67 Graphics2D big = bi.createGraphics();
68 big.setBackground(YELLOW);
69 big.clearRect(0,0,5,5);
70 big.setColor(RED);
71 big.fillRect(0,0,3,3);
72 texture = new TexturePaint(bi,new Rectangle(0,0,5,5));
73 }
74 private String clipType = "Lines";
75 private DemoControls controls;
76 protected boolean doClip = true;
77
78
79 public Text() {
80 setBackground(WHITE);
81 img = getImage("clouds.jpg");
82 setControls(new Component[] { new DemoControls(this) });
83 }
84
85
86 public void render(int w, int h, Graphics2D g2) {
87
88 FontRenderContext frc = g2.getFontRenderContext();
89 Font f = new Font("sansserif",Font.BOLD,32);
90 String s = new String ("JAVA");
91 TextLayout tl = new TextLayout (s, f, frc);
92 double sw = tl.getBounds().getWidth();
93 double sh = tl.getBounds().getHeight();
94 double sx = (w-40)/sw;
95 double sy = (h-40)/sh;
96 AffineTransform Tx = AffineTransform.getScaleInstance(sx, sy);
97 Shape shape = tl.getOutline(Tx);
98 sw = shape.getBounds().getWidth();
99 sh = shape.getBounds().getHeight();
100 Tx = AffineTransform.getTranslateInstance(w/2-sw/2, h/2+sh/2);
101 shape = Tx.createTransformedShape(shape);
102 Rectangle r = shape.getBounds();
103
104 if (doClip) {
105 g2.clip(shape);
106 }
107
108 if (clipType.equals("Lines")) {
109 g2.setColor(BLACK);
110 g2.fill(r);
111 g2.setColor(YELLOW);
112 g2.setStroke(new BasicStroke(1.5f));
113 for (int j = r.y; j < r.y + r.height; j=j+3) {
114 Line2D line = new Line2D.Float ( (float) r.x, (float) j,
115 (float) (r.x+r.width), (float) j);
116 g2.draw(line);
117 }
118 } else if (clipType.equals("Image")) {
119 g2.drawImage(img, r.x, r.y, r.width, r.height, null);
120 } else if (clipType.equals("TP")) {
121 g2.setPaint(texture);
122 g2.fill(r);
123 } else if (clipType.equals("GP")) {
124 g2.setPaint(new GradientPaint(0,0,BLUE,w,h,YELLOW));
125 g2.fill(r);
126 } else if (clipType.equals("Text")) {
127 g2.setColor(BLACK);
128 g2.fill(shape.getBounds());
129 g2.setColor(CYAN);
130 f = new Font("serif",Font.BOLD,10);
131 tl = new TextLayout ("java", f, frc);
132 sw = tl.getBounds().getWidth();
133
134 int x = r.x;
135 int y = (int) (r.y + tl.getAscent());
136 sh = r.y + r.height;
137 while ( y < sh ) {
138 tl.draw(g2, x, y);
139 if ((x += (int) sw) > (r.x+r.width)) {
140 x = r.x;
141 y += (int) tl.getAscent();
142 }
143 }
144 }
145 g2.setClip(new Rectangle(0, 0, w, h));
146
147 g2.setColor(GRAY);
148 g2.draw(shape);
149 }
150
151
152 public static void main(String s[]) {
153 createDemoFrame(new Text());
154 }
155
156
157 static class DemoControls extends CustomControls implements ActionListener {
158
159 Text demo;
160 JToolBar toolbar;
161
162 public DemoControls(Text demo) {
163 super(demo.name);
164 this.demo = demo;
165 add(toolbar = new JToolBar());
166 toolbar.setFloatable(false);
167 addTool("Clip", true );
168 addTool("Lines", true );
169 addTool("Image", false);
170 addTool("TP", false);
171 addTool("GP", false);
172 addTool("Text" , false);
173 }
174
175 public void addTool(String str, boolean state) {
176 JToggleButton b = (JToggleButton) toolbar.add(new JToggleButton(str));
177 b.setFocusPainted(false);
178 b.setSelected(state);
179 b.addActionListener(this);
180 int width = b.getPreferredSize().width;
181 Dimension prefSize = new Dimension(width, 21);
182 b.setPreferredSize(prefSize);
183 b.setMaximumSize( prefSize);
184 b.setMinimumSize( prefSize);
185 }
186
187 public void actionPerformed(ActionEvent e) {
188 if (e.getSource().equals(toolbar.getComponentAtIndex(0))) {
189 JToggleButton b = (JToggleButton) e.getSource();
190 demo.doClip = b.isSelected();
191 } else {
192 for(Component comp : toolbar.getComponents()) {
193 ((JToggleButton) comp).setSelected(false);
194 }
195 JToggleButton b = (JToggleButton) e.getSource();
196 b.setSelected(true);
197 demo.clipType = b.getText();
198 }
199 demo.repaint();
200 }
201
202 public Dimension getPreferredSize() {
203 return new Dimension(200,40);
204 }
205
206
207 public void run() {
208 try { thread.sleep(1111); } catch (Exception e) { return; }
209 Thread me = Thread.currentThread();
210 while (thread == me) {
211 for (int i = 1; i < toolbar.getComponentCount()-1; i++) {
212 ((AbstractButton) toolbar.getComponentAtIndex(i)).doClick();
213 try {
214 thread.sleep(4444);
215 } catch (InterruptedException e) { return; }
216 }
217 }
218 thread = null;
219 }
220 } } |
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