import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
/** A demonstration of different controls when joining two line
* segments. The style of the line end point is controlled
* through the capStyle parameter.
*
************************************
public class LineStyles extends JPanel {
private GeneralPath path;
private static int x = 30, deltaX = 150, y = 300,
deltaY = 250, thickness = 40;
private Circle p1Large, p1Small, p2Large, p2Small,
p3Large, p3Small;
private int compositeType = AlphaComposite.SRC_OVER;
private AlphaComposite transparentComposite =
AlphaComposite.getInstance(compositeType, 0.4F);
private int[] caps =
{ BasicStroke.CAP_SQUARE, BasicStroke.CAP_BUTT,
BasicStroke.CAP_ROUND };
private String[] capNames =
{ "CAP_SQUARE", "CAP_BUTT", "CAP_ROUND" };
private int[] joins =
{ BasicStroke.JOIN_MITER, BasicStroke.JOIN_BEVEL,
BasicStroke.JOIN_ROUND };
private String[] joinNames =
{ "JOIN_MITER", "JOIN_BEVEL", "JOIN_ROUND" };
public LineStyles() {
path = new GeneralPath();
path.moveTo(x, y);
p1Large = new Circle(x, y, thickness/2);
p1Small = new Circle(x, y, 2);
path.lineTo(x + deltaX, y - deltaY);
p2Large = new Circle(x + deltaX, y - deltaY, thickness/2);
p2Small = new Circle(x + deltaX, y - deltaY, 2);
path.lineTo(x + 2*deltaX, y);
p3Large = new Circle(x + 2*deltaX, y, thickness/2);
p3Small = new Circle(x + 2*deltaX, y, 2);
setFont(new Font("SansSerif", Font.BOLD, 20));
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D)g;
g2d.setColor(Color.lightGray);
for(int i=0; i<caps .length; i++) {
BasicStroke stroke =
new BasicStroke(thickness, caps[i], joins[i]);
g2d.setStroke(stroke);
g2d.draw(path);
labelEndPoints(g2d, capNames[i], joinNames[i]);
g2d.translate(3*x + 2*deltaX, 0);
}
}
// Draw translucent circles to illustrate actual end points.
// Include text labels for cap/join style.
private void labelEndPoints(Graphics2D g2d, String capLabel,
String joinLabel) {
Paint origPaint = g2d.getPaint();
Composite origComposite = g2d.getComposite();
g2d.setPaint(Color.black);
g2d.setComposite(transparentComposite);
g2d.fill(p1Large);
g2d.fill(p2Large);
g2d.fill(p3Large);
g2d.setPaint(Color.yellow);
g2d.setComposite(origComposite);
g2d.fill(p1Small);
g2d.fill(p2Small);
g2d.fill(p3Small);
g2d.setPaint(Color.black);
g2d.drawString(capLabel, x + thickness - 5, y + 5);
g2d.drawString(joinLabel, x + deltaX + thickness - 5,
y - deltaY);
g2d.setPaint(origPaint);
}
public static void main(String[] args) {
WindowUtilities.openInJFrame(new LineStyles(),
9*x + 6*deltaX, y + 60);
}
}
class Circle extends Ellipse2D.Double {
public Circle(double centerX, double centerY, double radius) {
super(centerX - radius, centerY - radius, 2.0*radius,
2.0*radius);
}
}
Note: Brought from our old site: http://www.salearningschool.com/example_codes/ on Jan 2nd, 2017 From: http://sitestree.com/?p=10379
Categories:Programming Code Examples, Java/J2EE/J2ME, Drawing
Tags:Java/J2EE/J2MEDrawing
Post Data:2017-01-02 16:04:39
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