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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2007, 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 | + | |
| 27 | + | |
| 28 | +package java.awt; | |
| 29 | + | |
| 30 | +import java.awt.image.ColorModel; | |
| 31 | +import java.awt.image.Raster; | |
| 32 | +import java.awt.image.WritableRaster; | |
| 33 | +import sun.awt.image.IntegerComponentRaster; | |
| 34 | +import java.util.Arrays; | |
| 35 | + | |
| 36 | +class ColorPaintContext implements PaintContext { | |
| 37 | + int color; | |
| 38 | + WritableRaster savedTile; | |
| 39 | + | |
| 40 | + protected ColorPaintContext(int color, ColorModel cm) { | |
| 41 | + this.color = color; | |
| 42 | + } | |
| 43 | + | |
| 44 | + public void dispose() { | |
| 45 | + } | |
| 46 | + | |
| 47 | + /* | |
| 48 | + * Returns the RGB value representing the color in the default sRGB | |
| 49 | + * {@link ColorModel}. | |
| 50 | + * (Bits 24-31 are alpha, 16-23 are red, 8-15 are green, 0-7 are | |
| 51 | + * blue). | |
| 52 | + * @return the RGB value of the color in the default sRGB | |
| 53 | + * <code>ColorModel</code>. | |
| 54 | + * @see java.awt.image.ColorModel#getRGBdefault | |
| 55 | + * @see #getRed | |
| 56 | + * @see #getGreen | |
| 57 | + * @see #getBlue | |
| 58 | + */ | |
| 59 | + int getRGB() { | |
| 60 | + return color; | |
| 61 | + } | |
| 62 | + | |
| 63 | + public ColorModel getColorModel() { | |
| 64 | + return ColorModel.getRGBdefault(); | |
| 65 | + } | |
| 66 | + | |
| 67 | + public synchronized Raster getRaster(int x, int y, int w, int h) { | |
| 68 | + WritableRaster t = savedTile; | |
| 69 | + | |
| 70 | + if (t == null || w > t.getWidth() || h > t.getHeight()) { | |
| 71 | + t = getColorModel().createCompatibleWritableRaster(w, h); | |
| 72 | + IntegerComponentRaster icr = (IntegerComponentRaster) t; | |
| 73 | + Arrays.fill(icr.getDataStorage(), color); | |
| 74 | + // Note - markDirty is probably unnecessary since icr is brand new | |
| 75 | + icr.markDirty(); | |
| 76 | + if (w <= 64 && h <= 64) { | |
| 77 | + savedTile = t; | |
| 78 | + } | |
| 79 | + } | |
| 80 | + | |
| 81 | + return t; | |
| 82 | + } | |
| 83 | +} | |