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| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2003, 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 sun.java2d.pipe; | ||
| 27 | |||
| 28 | import java.awt.Rectangle; | ||
| 29 | import java.awt.Shape; | ||
| 30 | import java.awt.Font; | ||
| 31 | import java.awt.font.GlyphVector; | ||
| 32 | import sun.java2d.SunGraphics2D; | ||
| 33 | import sun.java2d.loops.FontInfo; | ||
| 34 | import sun.font.GlyphList; | ||
| 35 | |||
| 36 | /* | ||
| 37 | * This class uses the alpha graybits arrays from a GlyphList object to | ||
| 38 | * drive a CompositePipe in much the same way as the antialiasing renderer. | ||
| 39 | */ | ||
| 40 | public class TextRenderer extends GlyphListPipe { | ||
| 41 | |||
| 42 | CompositePipe outpipe; | ||
| 43 | |||
| 44 | public TextRenderer(CompositePipe pipe) { | ||
| 45 | outpipe = pipe; | ||
| 46 | } | ||
| 47 | |||
| 48 | protected void drawGlyphList(SunGraphics2D sg2d, GlyphList gl) { | ||
| 49 | int num = gl.getNumGlyphs(); | ||
| 50 | Region clipRegion = sg2d.getCompClip(); | ||
| 51 | int cx1 = clipRegion.getLoX(); | ||
| 52 | int cy1 = clipRegion.getLoY(); | ||
| 53 | int cx2 = clipRegion.getHiX(); | ||
| 54 | int cy2 = clipRegion.getHiY(); | ||
| 55 | Object ctx = null; | ||
| 56 | try { | ||
| 57 | int[] bounds = gl.getBounds(); | ||
| 58 | Rectangle r = new Rectangle(bounds[0], bounds[1], | ||
| 59 | bounds[2] - bounds[0], | ||
| 60 | bounds[3] - bounds[1]); | ||
| 61 | Shape s = sg2d.untransformShape(r); | ||
| 62 | ctx = outpipe.startSequence(sg2d, s, r, bounds); | ||
| 63 | for (int i = 0; i < num; i++) { | ||
| 64 | gl.setGlyphIndex(i); | ||
| 65 | int metrics[] = gl.getMetrics(); | ||
| 66 | int gx1 = metrics[0]; | ||
| 67 | int gy1 = metrics[1]; | ||
| 68 | int w = metrics[2]; | ||
| 69 | int gx2 = gx1 + w; | ||
| 70 | int gy2 = gy1 + metrics[3]; | ||
| 71 | int off = 0; | ||
| 72 | if (gx1 < cx1) { | ||
| 73 | off = cx1 - gx1; | ||
| 74 | gx1 = cx1; | ||
| 75 | } | ||
| 76 | if (gy1 < cy1) { | ||
| 77 | off += (cy1 - gy1) * w; | ||
| 78 | gy1 = cy1; | ||
| 79 | } | ||
| 80 | if (gx2 > cx2) gx2 = cx2; | ||
| 81 | if (gy2 > cy2) gy2 = cy2; | ||
| 82 | if (gx2 > gx1 && gy2 > gy1 && | ||
| 83 | outpipe.needTile(ctx, gx1, gy1, gx2 - gx1, gy2 - gy1)) | ||
| 84 | { | ||
| 85 | byte alpha[] = gl.getGrayBits(); | ||
| 86 | outpipe.renderPathTile(ctx, alpha, off, w, | ||
| 87 | gx1, gy1, gx2 - gx1, gy2 - gy1); | ||
| 88 | } else { | ||
| 89 | outpipe.skipTile(ctx, gx1, gy1); | ||
| 90 | } | ||
| 91 | } | ||
| 92 | } finally { | ||
| 93 | if (ctx != null) { | ||
| 94 | outpipe.endSequence(ctx); | ||
| 95 | } | ||
| 96 | } | ||
| 97 | } | ||
| 98 | } | ||