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40
41 package java2d.demos.Lines;
42
43 import static java.awt.Color  .*;
44 import java.awt.*;
45 import java.awt.event.*;
46 import java.awt.geom.AffineTransform ;
47 import java.awt.geom.GeneralPath ;
48 import javax.swing.*;
49 import javax.swing.border.*;
50 import javax.swing.event.*;
51 import java2d.ControlsSurface;
52 import java2d.CustomControls;
53
54
55
59 public class Joins extends ControlsSurface implements ChangeListener {
60
61 protected int joinType = BasicStroke.JOIN_MITER;
62 protected float bswidth = 20.0f;
63 protected JSlider slider;
64 protected JLabel label;
65
66
67 public Joins() {
68 setBackground(WHITE);
69 slider = new JSlider(JSlider.VERTICAL, 0, 100, (int)(bswidth*2));
70 slider.setPreferredSize(new Dimension(15, 100));
71 slider.addChangeListener(this);
72 setControls(new Component[] { new DemoControls(this), slider });
73 setConstraints(new String [] { BorderLayout.NORTH, BorderLayout.WEST});
74 }
75
76
77 public void stateChanged(ChangeEvent e) {
78 if (getImageType() <= 1) {
81 setImageType(2);
82 }
83 bswidth = (float) slider.getValue() / 2.0f;
84 label.setText(" Width = " + String.valueOf(bswidth));
85 label.repaint();
86 repaint();
87 }
88
89
90 public void render(int w, int h, Graphics2D g2) {
91 BasicStroke bs = new BasicStroke(bswidth,
92 BasicStroke.CAP_BUTT, joinType);
93 GeneralPath p = new GeneralPath ();
94 p.moveTo(- w / 4.0f, - h / 12.0f);
95 p.lineTo(+ w / 4.0f, - h / 12.0f);
96 p.lineTo(- w / 6.0f, + h / 4.0f);
97 p.lineTo(+ 0.0f, - h / 4.0f);
98 p.lineTo(+ w / 6.0f, + h / 4.0f);
99 p.closePath();
100 p.closePath();
101 g2.translate(w/2, h/2);
102 g2.setColor(BLACK);
103 g2.draw(bs.createStrokedShape(p));
104 }
105
106
107 public static void main(String s[]) {
108 createDemoFrame(new Joins());
109 }
110
111
112 class DemoControls extends CustomControls implements ActionListener {
113
114 Joins demo;
115 int joinType[] = { BasicStroke.JOIN_MITER,
116 BasicStroke.JOIN_ROUND, BasicStroke.JOIN_BEVEL };
117 String joinName[] = { "Mitered Join", "Rounded Join", "Beveled Join" };
118 JMenu menu;
119 JMenuItem menuitem[] = new JMenuItem[joinType.length];
120 JoinIcon icons[] = new JoinIcon[joinType.length];
121 JToolBar toolbar;
122
123
124 public DemoControls(Joins demo) {
125 super(demo.name);
126 setBorder(new CompoundBorder(getBorder(), new EmptyBorder(2, 2, 2, 2)));
127 this.demo = demo;
128 setLayout(new BorderLayout());
129 label = new JLabel(" Width = " + String.valueOf(demo.bswidth));
130 Font font = new Font("serif", Font.BOLD, 14);
131 label.setFont(font);
132 add("West", label);
133 JMenuBar menubar = new JMenuBar();
134 add("East", menubar);
135 menu = (JMenu) menubar.add(new JMenu(joinName[0]));
136 menu.setFont(font = new Font("serif", Font.PLAIN, 10));
137 for (int i = 0; i < joinType.length; i++) {
138 icons[i]= new JoinIcon(joinType[i]);
139 menuitem[i] = menu.add(new JMenuItem(joinName[i]));
140 menuitem[i].setFont(font);
141 menuitem[i].setIcon(icons[i]);
142 menuitem[i].addActionListener(this);
143 }
144 menu.setIcon(icons[0]);
145 }
146
147
148 public void actionPerformed(ActionEvent e) {
149 for (int i = 0; i < joinType.length; i++) {
150 if (e.getSource().equals(menuitem[i])) {
151 demo.joinType = joinType[i];
152 menu.setIcon(icons[i]);
153 menu.setText(joinName[i]);
154 break;
155 }
156 }
157 demo.repaint();
158 }
159
160
161 public Dimension getPreferredSize() {
162 return new Dimension(200,37);
163 }
164
165
166 public void run() {
167 try { thread.sleep(999); } catch (Exception e) { return; }
168 Thread me = Thread.currentThread();
169 while (thread == me) {
170 for (int i = 0; i < menuitem.length; i++) {
171 menuitem[i].doClick();
172 for (int k = 10; k < 60; k+=2) {
173 demo.slider.setValue(k);
174 try {
175 thread.sleep(100);
176 } catch (InterruptedException e) { return; }
177 }
178 try {
179 thread.sleep(999);
180 } catch (InterruptedException e) { return; }
181 }
182 }
183 thread = null;
184 }
185
186
187 class JoinIcon implements Icon {
188 int joinType;
189 public JoinIcon(int joinType) {
190 this.joinType = joinType;
191 }
192
193 public void paintIcon(Component c, Graphics g, int x, int y) {
194 ((Graphics2D) g).setRenderingHint(
195 RenderingHints.KEY_ANTIALIASING,
196 RenderingHints.VALUE_ANTIALIAS_ON);
197 BasicStroke bs = new BasicStroke(8.0f,
198 BasicStroke.CAP_BUTT, joinType);
199 ((Graphics2D) g).setStroke(bs);
200 GeneralPath p = new GeneralPath ();
201 p.moveTo(0, 3);
202 p.lineTo(getIconWidth()-2, getIconHeight()/2);
203 p.lineTo(0,getIconHeight());
204 ((Graphics2D) g).draw(p);
205 }
206 public int getIconWidth() { return 20; }
207 public int getIconHeight() { return 20; }
208 } } } |
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