/* * @(#)BezierAnim.java 1.27 10/03/23 * * Copyright (c) 2006, 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: * * -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 Oracle 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 MICROSYSTEMS, 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. */ /* * @(#)BezierAnim.java 1.27 10/03/23 */ package java2d.demos.Arcs_Curves; import static java.awt.Color.*; import java.awt.*; import java.awt.event.*; import java.awt.image.BufferedImage; import java.awt.geom.GeneralPath; import javax.swing.*; import java2d.AnimatingControlsSurface; import java2d.CustomControls; /** * Animated Bezier Curve with controls for different draw & fill paints. */ public class BezierAnim extends AnimatingControlsSurface { private static final int NUMPTS = 6; protected BasicStroke solid = new BasicStroke(10.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND); protected BasicStroke dashed = new BasicStroke(10.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 10, new float[] {5}, 0); private float animpts[] = new float[NUMPTS * 2]; private float deltas[] = new float[NUMPTS * 2]; protected Paint fillPaint, drawPaint; protected boolean doFill = true; protected boolean doDraw = true; protected GradientPaint gradient; protected BasicStroke stroke; public BezierAnim() { setBackground(WHITE); gradient = new GradientPaint(0,0,RED,200,200,YELLOW); fillPaint = gradient; drawPaint = BLUE; stroke = solid; setControls(new Component[] { new DemoControls(this) }); } public void animate(float[] pts, float[] deltas, int index, int limit) { float newpt = pts[index] + deltas[index]; if (newpt <= 0) { newpt = -newpt; deltas[index] = (float) (Math.random() * 4.0 + 2.0); } else if (newpt >= (float) limit) { newpt = 2.0f * limit - newpt; deltas[index] = - (float) (Math.random() * 4.0 + 2.0); } pts[index] = newpt; } public void reset(int w, int h) { for (int i = 0; i < animpts.length; i += 2) { animpts[i + 0] = (float) (Math.random() * w); animpts[i + 1] = (float) (Math.random() * h); deltas[i + 0] = (float) (Math.random() * 6.0 + 4.0); deltas[i + 1] = (float) (Math.random() * 6.0 + 4.0); if (animpts[i + 0] > w / 2.0f) { deltas[i + 0] = -deltas[i + 0]; } if (animpts[i + 1] > h / 2.0f) { deltas[i + 1] = -deltas[i + 1]; } } gradient = new GradientPaint(0,0,RED,w*.7f,h*.7f,YELLOW); } public void step(int w, int h) { for (int i = 0; i < animpts.length; i += 2) { animate(animpts, deltas, i + 0, w); animate(animpts, deltas, i + 1, h); } } public void render(int w, int h, Graphics2D g2) { float[] ctrlpts = animpts; int len = ctrlpts.length; float prevx = ctrlpts[len - 2]; float prevy = ctrlpts[len - 1]; float curx = ctrlpts[0]; float cury = ctrlpts[1]; float midx = (curx + prevx) / 2.0f; float midy = (cury + prevy) / 2.0f; GeneralPath gp = new GeneralPath(GeneralPath.WIND_NON_ZERO); gp.moveTo(midx, midy); for (int i = 2; i <= ctrlpts.length; i += 2) { float x1 = (midx + curx) / 2.0f; float y1 = (midy + cury) / 2.0f; prevx = curx; prevy = cury; if (i < ctrlpts.length) { curx = ctrlpts[i + 0]; cury = ctrlpts[i + 1]; } else { curx = ctrlpts[0]; cury = ctrlpts[1]; } midx = (curx + prevx) / 2.0f; midy = (cury + prevy) / 2.0f; float x2 = (prevx + midx) / 2.0f; float y2 = (prevy + midy) / 2.0f; gp.curveTo(x1, y1, x2, y2, midx, midy); } gp.closePath(); if (doDraw) { g2.setPaint(drawPaint); g2.setStroke(stroke); g2.draw(gp); } if (doFill) { if (fillPaint instanceof GradientPaint) { fillPaint = gradient; } g2.setPaint(fillPaint); g2.fill(gp); } } public static void main(String argv[]) { createDemoFrame(new BezierAnim()); } static class DemoControls extends CustomControls implements ActionListener { static TexturePaint tp1, tp2; static { BufferedImage bi = new BufferedImage(2,1,BufferedImage.TYPE_INT_RGB); bi.setRGB(0, 0, 0xff00ff00); bi.setRGB(1, 0, 0xffff0000); tp1 = new TexturePaint(bi,new Rectangle(0,0,2,1)); bi = new BufferedImage(2,1,BufferedImage.TYPE_INT_RGB); bi.setRGB(0, 0, 0xff0000ff); bi.setRGB(1, 0, 0xffff0000); tp2 = new TexturePaint(bi,new Rectangle(0,0,2,1)); } BezierAnim demo; static Paint drawPaints[] = {new Color(0,0,0,0), BLUE, new Color(0, 0, 255, 126), BLUE, tp2 }; static String drawName[] = {"No Draw", "Blue", "Blue w/ Alpha", "Blue Dash", "Texture" }; static Paint fillPaints[] = {new Color(0,0,0,0), GREEN, new Color(0, 255, 0, 126), tp1, new GradientPaint(0,0,RED,30,30,YELLOW) }; String fillName[] = {"No Fill", "Green", "Green w/ Alpha", "Texture", "Gradient"}; JMenu fillMenu, drawMenu; JMenuItem fillMI[] = new JMenuItem[fillPaints.length]; JMenuItem drawMI[] = new JMenuItem[drawPaints.length]; PaintedIcon fillIcons[] = new PaintedIcon[fillPaints.length]; PaintedIcon drawIcons[] = new PaintedIcon[drawPaints.length]; Font font = new Font("serif", Font.PLAIN, 10); public DemoControls(BezierAnim demo) { super(demo.name); this.demo = demo; JMenuBar drawMenuBar = new JMenuBar(); add(drawMenuBar); JMenuBar fillMenuBar = new JMenuBar(); add(fillMenuBar); drawMenu = (JMenu) drawMenuBar.add(new JMenu("Draw Choice")); drawMenu.setFont(font); for (int i = 0; i < drawPaints.length; i++) { drawIcons[i]= new PaintedIcon(drawPaints[i]); drawMI[i] = drawMenu.add(new JMenuItem(drawName[i])); drawMI[i].setFont(font); drawMI[i].setIcon(drawIcons[i]); drawMI[i].addActionListener(this); } drawMenu.setIcon(drawIcons[1]); fillMenu = (JMenu) fillMenuBar.add(new JMenu("Fill Choice")); fillMenu.setFont(font); for (int i = 0; i < fillPaints.length; i++) { fillIcons[i]= new PaintedIcon(fillPaints[i]); fillMI[i] = fillMenu.add(new JMenuItem(fillName[i])); fillMI[i].setFont(font); fillMI[i].setIcon(fillIcons[i]); fillMI[i].addActionListener(this); } fillMenu.setIcon(fillIcons[fillPaints.length-1]); } public void actionPerformed(ActionEvent e) { Object obj = e.getSource(); for (int i = 0; i < fillPaints.length; i++) { if (obj.equals(fillMI[i])) { demo.doFill = true; demo.fillPaint = fillPaints[i]; fillMenu.setIcon(fillIcons[i]); break; } } for (int i = 0; i < drawPaints.length; i++) { if (obj.equals(drawMI[i])) { demo.doDraw = true; demo.drawPaint = drawPaints[i]; if (((JMenuItem) obj).getText().endsWith("Dash")) { demo.stroke = demo.dashed; } else { demo.stroke = demo.solid; } drawMenu.setIcon(drawIcons[i]); break; } } if (obj.equals(fillMI[0])) { demo.doFill = false; } else if (obj.equals(drawMI[0])) { demo.doDraw = false; } if (demo.animating.thread == null) { demo.repaint(); } } public Dimension getPreferredSize() { return new Dimension(200,36); } public void run() { Thread me = Thread.currentThread(); while (thread == me) { for (JMenuItem dmi : drawMI) { dmi.doClick(); for (JMenuItem fmi : fillMI) { fmi.doClick(); try { thread.sleep(3000 + (long) (Math.random() * 3000)); } catch (InterruptedException e) { break; } } } } thread = null; } static class PaintedIcon implements Icon { Paint paint; public PaintedIcon(Paint p) { this.paint = p; } public void paintIcon(Component c, Graphics g, int x, int y) { Graphics2D g2 = (Graphics2D) g; g2.setPaint(paint); g2.fillRect(x,y,getIconWidth(), getIconHeight()); g2.setColor(GRAY); g2.draw3DRect(x, y, getIconWidth()-1, getIconHeight()-1, true); } public int getIconWidth() { return 12; } public int getIconHeight() { return 12; } } // End PaintedIcon class } // End DemoControls class } // End BezierAnim class