Showing the changes to java/pkg/java/awt/TexturePaint.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,151 @@ | ||
| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.awt; | |
| 27 | + | |
| 28 | +import java.awt.geom.Rectangle2D; | |
| 29 | +import java.awt.geom.AffineTransform; | |
| 30 | +import java.awt.image.BufferedImage; | |
| 31 | +import java.awt.image.ColorModel; | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * The <code>TexturePaint</code> class provides a way to fill a | |
| 35 | + * {@link Shape} with a texture that is specified as | |
| 36 | + * a {@link BufferedImage}. The size of the <code>BufferedImage</code> | |
| 37 | + * object should be small because the <code>BufferedImage</code> data | |
| 38 | + * is copied by the <code>TexturePaint</code> object. | |
| 39 | + * At construction time, the texture is anchored to the upper | |
| 40 | + * left corner of a {@link Rectangle2D} that is | |
| 41 | + * specified in user space. Texture is computed for | |
| 42 | + * locations in the device space by conceptually replicating the | |
| 43 | + * specified <code>Rectangle2D</code> infinitely in all directions | |
| 44 | + * in user space and mapping the <code>BufferedImage</code> to each | |
| 45 | + * replicated <code>Rectangle2D</code>. | |
| 46 | + * @see Paint | |
| 47 | + * @see Graphics2D#setPaint | |
| 48 | + * @version 1.48, 06/05/07 | |
| 49 | + */ | |
| 50 | + | |
| 51 | +public class TexturePaint implements Paint { | |
| 52 | + | |
| 53 | + BufferedImage bufImg; | |
| 54 | + double tx; | |
| 55 | + double ty; | |
| 56 | + double sx; | |
| 57 | + double sy; | |
| 58 | + | |
| 59 | + /** | |
| 60 | + * Constructs a <code>TexturePaint</code> object. | |
| 61 | + * @param txtr the <code>BufferedImage</code> object with the texture | |
| 62 | + * used for painting | |
| 63 | + * @param anchor the <code>Rectangle2D</code> in user space used to | |
| 64 | + * anchor and replicate the texture | |
| 65 | + */ | |
| 66 | + public TexturePaint(BufferedImage txtr, | |
| 67 | + Rectangle2D anchor) { | |
| 68 | + this.bufImg = txtr; | |
| 69 | + this.tx = anchor.getX(); | |
| 70 | + this.ty = anchor.getY(); | |
| 71 | + this.sx = anchor.getWidth() / bufImg.getWidth(); | |
| 72 | + this.sy = anchor.getHeight() / bufImg.getHeight(); | |
| 73 | + } | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * Returns the <code>BufferedImage</code> texture used to | |
| 77 | + * fill the shapes. | |
| 78 | + * @return a <code>BufferedImage</code>. | |
| 79 | + */ | |
| 80 | + public BufferedImage getImage() { | |
| 81 | + return bufImg; | |
| 82 | + } | |
| 83 | + | |
| 84 | + /** | |
| 85 | + * Returns a copy of the anchor rectangle which positions and | |
| 86 | + * sizes the textured image. | |
| 87 | + * @return the <code>Rectangle2D</code> used to anchor and | |
| 88 | + * size this <code>TexturePaint</code>. | |
| 89 | + */ | |
| 90 | + public Rectangle2D getAnchorRect() { | |
| 91 | + return new Rectangle2D.Double(tx, ty, | |
| 92 | + sx * bufImg.getWidth(), | |
| 93 | + sy * bufImg.getHeight()); | |
| 94 | + } | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Creates and returns a {@link PaintContext} used to | |
| 98 | + * generate a tiled image pattern. | |
| 99 | + * See the {@link Paint#createContext specification} of the | |
| 100 | + * method in the {@link Paint} interface for information | |
| 101 | + * on null parameter handling. | |
| 102 | + * | |
| 103 | + * @param cm the preferred {@link ColorModel} which represents the most convenient | |
| 104 | + * format for the caller to receive the pixel data, or {@code null} | |
| 105 | + * if there is no preference. | |
| 106 | + * @param deviceBounds the device space bounding box | |
| 107 | + * of the graphics primitive being rendered. | |
| 108 | + * @param userBounds the user space bounding box | |
| 109 | + * of the graphics primitive being rendered. | |
| 110 | + * @param xform the {@link AffineTransform} from user | |
| 111 | + * space into device space. | |
| 112 | + * @param hints the set of hints that the context object can use to | |
| 113 | + * choose between rendering alternatives. | |
| 114 | + * @return the {@code PaintContext} for | |
| 115 | + * generating color patterns. | |
| 116 | + * @see Paint | |
| 117 | + * @see PaintContext | |
| 118 | + * @see ColorModel | |
| 119 | + * @see Rectangle | |
| 120 | + * @see Rectangle2D | |
| 121 | + * @see AffineTransform | |
| 122 | + * @see RenderingHints | |
| 123 | + */ | |
| 124 | + public PaintContext createContext(ColorModel cm, | |
| 125 | + Rectangle deviceBounds, | |
| 126 | + Rectangle2D userBounds, | |
| 127 | + AffineTransform xform, | |
| 128 | + RenderingHints hints) { | |
| 129 | + if (xform == null) { | |
| 130 | + xform = new AffineTransform(); | |
| 131 | + } else { | |
| 132 | + xform = (AffineTransform) xform.clone(); | |
| 133 | + } | |
| 134 | + xform.translate(tx, ty); | |
| 135 | + xform.scale(sx, sy); | |
| 136 | + | |
| 137 | + return TexturePaintContext.getContext(bufImg, xform, hints, | |
| 138 | + deviceBounds); | |
| 139 | + } | |
| 140 | + | |
| 141 | + /** | |
| 142 | + * Returns the transparency mode for this <code>TexturePaint</code>. | |
| 143 | + * @return the transparency mode for this <code>TexturePaint</code> | |
| 144 | + * as an integer value. | |
| 145 | + * @see Transparency | |
| 146 | + */ | |
| 147 | + public int getTransparency() { | |
| 148 | + return (bufImg.getColorModel()).getTransparency(); | |
| 149 | + } | |
| 150 | + | |
| 151 | +} | |