| /* |
| * |
| * 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.Colors; |
| |
| |
| import static java.awt.Color.black; |
| import static java.awt.Color.blue; |
| import static java.awt.Color.cyan; |
| import static java.awt.Color.green; |
| import static java.awt.Color.magenta; |
| import static java.awt.Color.orange; |
| import static java.awt.Color.pink; |
| import static java.awt.Color.red; |
| import static java.awt.Color.white; |
| import static java.awt.Color.yellow; |
| import java.awt.Color; |
| import java.awt.Font; |
| import java.awt.Graphics2D; |
| import java.awt.Image; |
| import java.awt.RenderingHints; |
| import java.awt.Shape; |
| import java.awt.color.ColorSpace; |
| import java.awt.font.FontRenderContext; |
| import java.awt.font.TextLayout; |
| import java.awt.geom.Rectangle2D; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ColorConvertOp; |
| import java2d.Surface; |
| |
| |
| /** |
| * ColorConvertOp a ColorSpace.TYPE_RGB BufferedImage to a ColorSpace.CS_GRAY |
| * BufferedImage. |
| */ |
| @SuppressWarnings("serial") |
| public class ColorConvert extends Surface { |
| |
| private static Image img; |
| private static Color colors[] = { red, pink, orange, |
| yellow, green, magenta, cyan, blue }; |
| |
| public ColorConvert() { |
| setBackground(white); |
| img = getImage("clouds.jpg"); |
| } |
| |
| @Override |
| public void render(int w, int h, Graphics2D g2) { |
| |
| int iw = img.getWidth(this); |
| int ih = img.getHeight(this); |
| FontRenderContext frc = g2.getFontRenderContext(); |
| Font font = g2.getFont(); |
| g2.setColor(black); |
| TextLayout tl = new TextLayout("ColorConvertOp RGB->GRAY", font, frc); |
| tl.draw(g2, (float) (w / 2 - tl.getBounds().getWidth() / 2), |
| tl.getAscent() + tl.getLeading()); |
| |
| BufferedImage srcImg = |
| new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB); |
| Graphics2D srcG = srcImg.createGraphics(); |
| RenderingHints rhs = g2.getRenderingHints(); |
| srcG.setRenderingHints(rhs); |
| srcG.drawImage(img, 0, 0, null); |
| |
| String s = "OpenJDK"; |
| Font f = new Font(Font.SERIF, Font.BOLD, iw / 6); |
| tl = new TextLayout(s, f, frc); |
| Rectangle2D tlb = tl.getBounds(); |
| char[] chars = s.toCharArray(); |
| float charWidth = 0.0f; |
| int rw = iw / chars.length; |
| int rh = ih / chars.length; |
| for (int i = 0; i < chars.length; i++) { |
| tl = new TextLayout(String.valueOf(chars[i]), f, frc); |
| Shape shape = tl.getOutline(null); |
| srcG.setColor(colors[i % colors.length]); |
| tl.draw(srcG, (float) (iw / 2 - tlb.getWidth() / 2 + charWidth), |
| (float) (ih / 2 + tlb.getHeight() / 2)); |
| charWidth += (float) shape.getBounds().getWidth(); |
| srcG.fillRect(i * rw, ih - rh, rw, rh); |
| srcG.setColor(colors[colors.length - 1 - i % colors.length]); |
| srcG.fillRect(i * rw, 0, rw, rh); |
| } |
| |
| ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY); |
| ColorConvertOp theOp = new ColorConvertOp(cs, rhs); |
| |
| BufferedImage dstImg = |
| new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB); |
| theOp.filter(srcImg, dstImg); |
| |
| g2.drawImage(srcImg, 10, 20, w / 2 - 20, h - 30, null); |
| g2.drawImage(dstImg, w / 2 + 10, 20, w / 2 - 20, h - 30, null); |
| } |
| |
| public static void main(String s[]) { |
| createDemoFrame(new ColorConvert()); |
| } |
| } |