src/demo/share/jfc/J2Ddemo/java2d/demos/Clipping/ClipAnim.java - platform/libcore - Git at Google

 /*
  *
  * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   - Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *
  *   - Redistributions 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 Oracle nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 package java2d.demos.Clipping;


 import java.awt.*;
 import java.awt.event.*;
 import java.awt.geom.*;
 import java.awt.image.BufferedImage;
 import javax.swing.*;
 import java2d.AnimatingControlsSurface;
 import java2d.CustomControls;
 import static java.lang.Math.random;
 import static java.awt.Color.*;


 /**
  * Animated clipping of an image & composited shapes.
  */
 @SuppressWarnings("serial")
 public class ClipAnim extends AnimatingControlsSurface {

     private static Image dimg, cimg;
     static TexturePaint texturePaint;

     static {
         BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB);
         Graphics2D big = bi.createGraphics();
         big.setBackground(YELLOW);
         big.clearRect(0, 0, 5, 5);
         big.setColor(RED);
         big.fillRect(0, 0, 3, 3);
         texturePaint = new TexturePaint(bi, new Rectangle(0, 0, 5, 5));
     }
     private AnimVal animval[] = new AnimVal[3];
     protected boolean doObjects = true;
     private Font originalFont = new Font(Font.SERIF, Font.PLAIN, 12);
     private Font font;
     private GradientPaint gradient;
     private int strX, strY;
     private int dukeX, dukeY, dukeWidth, dukeHeight;

     public ClipAnim() {
         cimg = getImage("clouds.jpg");
         dimg = getImage("duke.png");
         setBackground(WHITE);
         animval[0] = new AnimVal(true);
         animval[1] = new AnimVal(false);
         animval[2] = new AnimVal(false);
         setControls(new Component[] { new DemoControls(this) });
     }

     @Override
     public void reset(int w, int h) {
         for (AnimVal a : animval) {
             a.reset(w, h);
         }
         gradient = new GradientPaint(0, h / 2, RED, w * .4f, h * .9f, YELLOW);
         double scale = 0.4;
         dukeHeight = (int) (scale * h);
         dukeWidth = (int) (dimg.getWidth(this) * scale * h / dimg.getHeight(this));
         dukeX = (int) (w * .25 - dukeWidth / 2);
         dukeY = (int) (h * .25 - dukeHeight / 2);
         FontMetrics fm = getFontMetrics(originalFont);
         double sw = fm.stringWidth("CLIPPING");
         double sh = fm.getAscent() + fm.getDescent();
         double sx = (w / 2 - 30) / sw;
         double sy = (h / 2 - 30) / sh;
         AffineTransform Tx = AffineTransform.getScaleInstance(sx, sy);
         font = originalFont.deriveFont(Tx);
         fm = getFontMetrics(font);
         strX = (int) (w * .75 - fm.stringWidth("CLIPPING") / 2);
         strY = (int) (h * .72 + fm.getAscent() / 2);
     }

     @Override
     public void step(int w, int h) {
         for (AnimVal a : animval) {
             if (a.isSelected) {
                 a.step(w, h);
             }
         }
     }

     @Override
     public void render(int w, int h, Graphics2D g2) {

         GeneralPath p1 = new GeneralPath();
         GeneralPath p2 = new GeneralPath();

         for (AnimVal a : animval) {
             if (a.isSelected) {
                 double x = a.x;
                 double y = a.y;
                 double ew = a.ew;
                 double eh = a.eh;
                 p1.append(new Ellipse2D.Double(x, y, ew, eh), false);
                 p2.append(new Rectangle2D.Double(x + 5, y + 5, ew - 10, eh - 10),
                         false);
             }
         }
         if (animval[0].isSelected || animval[1].isSelected
                 || animval[2].isSelected) {
             g2.setClip(p1);
             g2.clip(p2);
         }

         if (doObjects) {
             int w2 = w / 2;
             int h2 = h / 2;
             g2.drawImage(cimg, 0, 0, w2, h2, null);
             g2.drawImage(dimg, dukeX, dukeY, dukeWidth, dukeHeight, null);

             g2.setPaint(texturePaint);
             g2.fillRect(w2, 0, w2, h2);

             g2.setPaint(gradient);
             g2.fillRect(0, h2, w2, h2);

             g2.setColor(LIGHT_GRAY);
             g2.fillRect(w2, h2, w2, h2);
             g2.setColor(RED);
             g2.drawOval(w2, h2, w2 - 1, h2 - 1);
             g2.setFont(font);
             g2.drawString("CLIPPING", strX, strY);
         } else {
             g2.setColor(LIGHT_GRAY);
             g2.fillRect(0, 0, w, h);
         }
     }

     public static void main(String argv[]) {
         createDemoFrame(new ClipAnim());
     }


     public class AnimVal {

         double ix = 5.0;
         double iy = 3.0;
         double iw = 5.0;
         double ih = 3.0;
         double x, y;
         double ew, eh;   // ellipse width & height
         boolean isSelected;

         public AnimVal(boolean isSelected) {
             this.isSelected = isSelected;
         }

         public void step(int w, int h) {
             x += ix;
             y += iy;
             ew += iw;
             eh += ih;

             if (ew > w / 2) {
                 ew = w / 2;
                 iw = random() * -w / 16 - 1;
             }
             if (ew < w / 8) {
                 ew = w / 8;
                 iw = random() * w / 16 + 1;
             }
             if (eh > h / 2) {
                 eh = h / 2;
                 ih = random() * -h / 16 - 1;
             }
             if (eh < h / 8) {
                 eh = h / 8;
                 ih = random() * h / 16 + 1;
             }

             if ((x + ew) > w) {
                 x = (w - ew) - 1;
                 ix = random() * -w / 32 - 1;
             }
             if ((y + eh) > h) {
                 y = (h - eh) - 2;
                 iy = random() * -h / 32 - 1;
             }
             if (x < 0) {
                 x = 2;
                 ix = random() * w / 32 + 1;
             }
             if (y < 0) {
                 y = 2;
                 iy = random() * h / 32 + 1;
             }
         }

         public void reset(int w, int h) {
             x = random() * w;
             y = random() * h;
             ew = (random() * w) / 2;
             eh = (random() * h) / 2;
         }
     }


     static final class DemoControls extends CustomControls implements
             ActionListener {

         ClipAnim demo;
         JToolBar toolbar;

         public DemoControls(ClipAnim demo) {
             super(demo.name);
             this.demo = demo;
             add(toolbar = new JToolBar());
             toolbar.setFloatable(false);
             addTool("Objects", true);
             addTool("Clip1", true);
             addTool("Clip2", false);
             addTool("Clip3", false);
         }

         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);
         }

         @Override
         public void actionPerformed(ActionEvent e) {
             JToggleButton b = (JToggleButton) e.getSource();
             if (b.getText().equals("Objects")) {
                 demo.doObjects = b.isSelected();
             } else if (b.getText().equals("Clip1")) {
                 demo.animval[0].isSelected = b.isSelected();
             } else if (b.getText().equals("Clip2")) {
                 demo.animval[1].isSelected = b.isSelected();
             } else if (b.getText().equals("Clip3")) {
                 demo.animval[2].isSelected = b.isSelected();
             }
             if (!demo.animating.running()) {
                 demo.repaint();
             }
         }

         @Override
         public Dimension getPreferredSize() {
             return new Dimension(200, 40);
         }

         @Override
         public void run() {
             try {
                 Thread.sleep(5000);
             } catch (InterruptedException e) {
                 return;
             }
             ((AbstractButton) toolbar.getComponentAtIndex(2)).doClick();
             try {
                 Thread.sleep(5000);
             } catch (InterruptedException e) {
                 return;
             }
             if (getSize().width > 400) {
                 ((AbstractButton) toolbar.getComponentAtIndex(3)).doClick();
             }
             thread = null;
         }
     } // End DemoControls
 } // End ClipAnim
	/*
	*
	* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* - Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* - Redistributions 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 Oracle nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
	* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/
	package java2d.demos.Clipping;


	import java.awt.*;
	import java.awt.event.*;
	import java.awt.geom.*;
	import java.awt.image.BufferedImage;
	import javax.swing.*;
	import java2d.AnimatingControlsSurface;
	import java2d.CustomControls;
	import static java.lang.Math.random;
	import static java.awt.Color.*;


	/**
	* Animated clipping of an image & composited shapes.
	*/
	@SuppressWarnings("serial")
	public class ClipAnim extends AnimatingControlsSurface {

	private static Image dimg, cimg;
	static TexturePaint texturePaint;

	static {
	BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB);
	Graphics2D big = bi.createGraphics();
	big.setBackground(YELLOW);
	big.clearRect(0, 0, 5, 5);
	big.setColor(RED);
	big.fillRect(0, 0, 3, 3);
	texturePaint = new TexturePaint(bi, new Rectangle(0, 0, 5, 5));
	}
	private AnimVal animval[] = new AnimVal[3];
	protected boolean doObjects = true;
	private Font originalFont = new Font(Font.SERIF, Font.PLAIN, 12);
	private Font font;
	private GradientPaint gradient;
	private int strX, strY;
	private int dukeX, dukeY, dukeWidth, dukeHeight;

	public ClipAnim() {
	cimg = getImage("clouds.jpg");
	dimg = getImage("duke.png");
	setBackground(WHITE);
	animval[0] = new AnimVal(true);
	animval[1] = new AnimVal(false);
	animval[2] = new AnimVal(false);
	setControls(new Component[] { new DemoControls(this) });
	}

	@Override
	public void reset(int w, int h) {
	for (AnimVal a : animval) {
	a.reset(w, h);
	}
	gradient = new GradientPaint(0, h / 2, RED, w * .4f, h * .9f, YELLOW);
	double scale = 0.4;
	dukeHeight = (int) (scale * h);
	dukeWidth = (int) (dimg.getWidth(this) * scale * h / dimg.getHeight(this));
	dukeX = (int) (w * .25 - dukeWidth / 2);
	dukeY = (int) (h * .25 - dukeHeight / 2);
	FontMetrics fm = getFontMetrics(originalFont);
	double sw = fm.stringWidth("CLIPPING");
	double sh = fm.getAscent() + fm.getDescent();
	double sx = (w / 2 - 30) / sw;
	double sy = (h / 2 - 30) / sh;
	AffineTransform Tx = AffineTransform.getScaleInstance(sx, sy);
	font = originalFont.deriveFont(Tx);
	fm = getFontMetrics(font);
	strX = (int) (w * .75 - fm.stringWidth("CLIPPING") / 2);
	strY = (int) (h * .72 + fm.getAscent() / 2);
	}

	@Override
	public void step(int w, int h) {
	for (AnimVal a : animval) {
	if (a.isSelected) {
	a.step(w, h);
	}
	}
	}

	@Override
	public void render(int w, int h, Graphics2D g2) {

	GeneralPath p1 = new GeneralPath();
	GeneralPath p2 = new GeneralPath();

	for (AnimVal a : animval) {
	if (a.isSelected) {
	double x = a.x;
	double y = a.y;
	double ew = a.ew;
	double eh = a.eh;
	p1.append(new Ellipse2D.Double(x, y, ew, eh), false);
	p2.append(new Rectangle2D.Double(x + 5, y + 5, ew - 10, eh - 10),
	false);
	}
	}
	if (animval[0].isSelected \|\| animval[1].isSelected
	\|\| animval[2].isSelected) {
	g2.setClip(p1);
	g2.clip(p2);
	}

	if (doObjects) {
	int w2 = w / 2;
	int h2 = h / 2;
	g2.drawImage(cimg, 0, 0, w2, h2, null);
	g2.drawImage(dimg, dukeX, dukeY, dukeWidth, dukeHeight, null);

	g2.setPaint(texturePaint);
	g2.fillRect(w2, 0, w2, h2);

	g2.setPaint(gradient);
	g2.fillRect(0, h2, w2, h2);

	g2.setColor(LIGHT_GRAY);
	g2.fillRect(w2, h2, w2, h2);
	g2.setColor(RED);
	g2.drawOval(w2, h2, w2 - 1, h2 - 1);
	g2.setFont(font);
	g2.drawString("CLIPPING", strX, strY);
	} else {
	g2.setColor(LIGHT_GRAY);
	g2.fillRect(0, 0, w, h);
	}
	}

	public static void main(String argv[]) {
	createDemoFrame(new ClipAnim());
	}


	public class AnimVal {

	double ix = 5.0;
	double iy = 3.0;
	double iw = 5.0;
	double ih = 3.0;
	double x, y;
	double ew, eh; // ellipse width & height
	boolean isSelected;

	public AnimVal(boolean isSelected) {
	this.isSelected = isSelected;
	}

	public void step(int w, int h) {
	x += ix;
	y += iy;
	ew += iw;
	eh += ih;

	if (ew > w / 2) {
	ew = w / 2;
	iw = random() * -w / 16 - 1;
	}
	if (ew < w / 8) {
	ew = w / 8;
	iw = random() * w / 16 + 1;
	}
	if (eh > h / 2) {
	eh = h / 2;
	ih = random() * -h / 16 - 1;
	}
	if (eh < h / 8) {
	eh = h / 8;
	ih = random() * h / 16 + 1;
	}

	if ((x + ew) > w) {
	x = (w - ew) - 1;
	ix = random() * -w / 32 - 1;
	}
	if ((y + eh) > h) {
	y = (h - eh) - 2;
	iy = random() * -h / 32 - 1;
	}
	if (x < 0) {
	x = 2;
	ix = random() * w / 32 + 1;
	}
	if (y < 0) {
	y = 2;
	iy = random() * h / 32 + 1;
	}
	}

	public void reset(int w, int h) {
	x = random() * w;
	y = random() * h;
	ew = (random() * w) / 2;
	eh = (random() * h) / 2;
	}
	}


	static final class DemoControls extends CustomControls implements
	ActionListener {

	ClipAnim demo;
	JToolBar toolbar;

	public DemoControls(ClipAnim demo) {
	super(demo.name);
	this.demo = demo;
	add(toolbar = new JToolBar());
	toolbar.setFloatable(false);
	addTool("Objects", true);
	addTool("Clip1", true);
	addTool("Clip2", false);
	addTool("Clip3", false);
	}

	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);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
	JToggleButton b = (JToggleButton) e.getSource();
	if (b.getText().equals("Objects")) {
	demo.doObjects = b.isSelected();
	} else if (b.getText().equals("Clip1")) {
	demo.animval[0].isSelected = b.isSelected();
	} else if (b.getText().equals("Clip2")) {
	demo.animval[1].isSelected = b.isSelected();
	} else if (b.getText().equals("Clip3")) {
	demo.animval[2].isSelected = b.isSelected();
	}
	if (!demo.animating.running()) {
	demo.repaint();
	}
	}

	@Override
	public Dimension getPreferredSize() {
	return new Dimension(200, 40);
	}

	@Override
	public void run() {
	try {
	Thread.sleep(5000);
	} catch (InterruptedException e) {
	return;
	}
	((AbstractButton) toolbar.getComponentAtIndex(2)).doClick();
	try {
	Thread.sleep(5000);
	} catch (InterruptedException e) {
	return;
	}
	if (getSize().width > 400) {
	((AbstractButton) toolbar.getComponentAtIndex(3)).doClick();
	}
	thread = null;
	}
	} // End DemoControls
	} // End ClipAnim