/* * * Copyright (c) 2007, 2018, 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.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. */ @SuppressWarnings("serial") 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; protected boolean doIntersection = true; protected boolean doOvals = true; protected boolean doText; protected boolean threeSixty; public Intersection() { setBackground(WHITE); setControls(new Component[] { new DemoControls(this) }); } @Override 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(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); } @Override 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; } } @Override 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 final 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); } @Override 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.running()) { demo.repaint(); } } @Override public Dimension getPreferredSize() { return new Dimension(200,40); } @Override @SuppressWarnings("SleepWhileHoldingLock") 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