Showing the changes to java/pkg/sun/java2d/pipe/TextRenderer.java (1 of 18352 files). Show all
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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 | +} | |