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/*
* @(#)Intersection.java 1.32 06/08/29
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
/*
* @(#)Intersection.java 1.32 06/08/29
*/
package java2d.demos.Clipping;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import javax.swing.*;
import java2d.AnimatingControlsSurface;
import java2d.CustomControls;
import static java.awt.Color.*;
/**
* Animated intersection clipping of lines, an image and a textured rectangle.
*/
public class Intersection extends AnimatingControlsSurface {
private static final int HEIGHT_DECREASE = 0;
private static final int HEIGHT_INCREASE = 1;
private static final int WIDTH_DECREASE = 2;
private static final int WIDTH_INCREASE = 3;
private int xx, yy, ww, hh;
private int direction = HEIGHT_DECREASE;
private int angdeg;
private Shape textshape;
private double sw, sh;
private GeneralPath ovals;
private Rectangle2D rectshape;
private DemoControls controls;
protected boolean doIntersection = true;
protected boolean doOvals = true;
protected boolean doText;
protected boolean threeSixty;
public Intersection() {
setBackground(WHITE);
setControls(new Component[] { new DemoControls(this) });
}
public void reset(int w, int h) {
xx = yy = 0;
ww = w-1; hh = h;
direction = HEIGHT_DECREASE;
angdeg = 0;
FontRenderContext frc = new FontRenderContext(null, true, false);
Font f = new Font("serif",Font.BOLD,32);
TextLayout tl = new TextLayout("J2D", f, frc);
sw = tl.getBounds().getWidth();
sh = tl.getBounds().getHeight();
int size = Math.min(w, h);
double sx = (size-40)/sw;
double sy = (size-100)/sh;
AffineTransform Tx = AffineTransform.getScaleInstance(sx, sy);
textshape = tl.getOutline(Tx);
rectshape = textshape.getBounds();
sw = rectshape.getWidth();
sh = rectshape.getHeight();
ovals = new GeneralPath();
ovals.append(new Ellipse2D.Double( 10, 10, 20, 20), false);
ovals.append(new Ellipse2D.Double(w-30, 10, 20, 20), false);
ovals.append(new Ellipse2D.Double( 10, h-30, 20, 20), false);
ovals.append(new Ellipse2D.Double(w-30, h-30, 20, 20), false);
}
public void step(int w, int h) {
if (direction == HEIGHT_DECREASE) {
yy+=2; hh-=4;
if (yy >= h/2) {
direction = HEIGHT_INCREASE;
}
} else if (direction == HEIGHT_INCREASE) {
yy-=2; hh+=4;
if (yy <= 0) {
direction = WIDTH_DECREASE;
hh = h-1; yy = 0;
}
}
if (direction == WIDTH_DECREASE) {
xx+=2; ww-=4;
if (xx >= w/2) {
direction = WIDTH_INCREASE;
}
} else if (direction == WIDTH_INCREASE) {
xx-=2; ww+=4;
if (xx <= 0) {
direction = HEIGHT_DECREASE;
ww = w-1; xx = 0;
}
}
if ((angdeg += 5) == 360) {
angdeg = 0;
threeSixty = true;
}
}
public void render(int w, int h, Graphics2D g2) {
Rectangle rect = new Rectangle(xx, yy, ww, hh);
AffineTransform Tx = new AffineTransform();
Tx.rotate(Math.toRadians(angdeg),w/2,h/2);
Tx.translate(w/2-sw/2, sh+(h-sh)/2);
GeneralPath path = new GeneralPath();
if (doOvals) {
path.append(ovals, false);
}
if (doText) {
path.append(Tx.createTransformedShape(textshape), false);
} else {
path.append(Tx.createTransformedShape(rectshape), false);
}
if (doIntersection) {
g2.clip(rect);
g2.clip(path);
}
g2.setColor(GREEN);
g2.fill(rect);
g2.setClip(new Rectangle(0, 0, w, h));
g2.setColor(LIGHT_GRAY);
g2.draw(rect);
g2.setColor(BLACK);
g2.draw(path);
}
public static void main(String argv[]) {
createDemoFrame(new Intersection());
}
static class DemoControls extends CustomControls implements ActionListener {
Intersection demo;
JToolBar toolbar;
public DemoControls(Intersection demo) {
super(demo.name);
this.demo = demo;
add(toolbar = new JToolBar());
toolbar.setFloatable(false);
addTool("Intersect", true );
addTool("Text", false);
addTool("Ovals", true );
}
public void addTool(String str, boolean state) {
JToggleButton b = (JToggleButton) toolbar.add(new JToggleButton(str));
b.setFocusPainted(false);
b.setSelected(state);
b.addActionListener(this);
int width = b.getPreferredSize().width;
Dimension prefSize = new Dimension(width, 21);
b.setPreferredSize(prefSize);
b.setMaximumSize( prefSize);
b.setMinimumSize( prefSize);
}
public void actionPerformed(ActionEvent e) {
JToggleButton b = (JToggleButton) e.getSource();
if (b.getText().equals("Intersect")) {
demo.doIntersection = b.isSelected();
} else if (b.getText().equals("Ovals")) {
demo.doOvals = b.isSelected();
} else if (b.getText().equals("Text")) {
demo.doText = b.isSelected();
}
if (demo.animating.thread == null) {
demo.repaint();
}
}
public Dimension getPreferredSize() {
return new Dimension(200,40);
}
public void run() {
Thread me = Thread.currentThread();
while (thread == me) {
if (demo.threeSixty) {
((AbstractButton) toolbar.getComponentAtIndex(1)).doClick();
demo.threeSixty = false;
}
try {
thread.sleep(500);
} catch (InterruptedException e) { return; }
}
thread = null;
}
} // End DemoControls
} // End Intersection
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