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/* * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.java2d.pipe; import java.awt.Rectangle;import java.awt.Shape;import java.awt.Font;import java.awt.font.GlyphVector;import sun.java2d.SunGraphics2D;import sun.java2d.loops.FontInfo;import sun.font.GlyphList; /* * This class uses the alpha graybits arrays from a GlyphList object to * drive a CompositePipe in much the same way as the antialiasing renderer. */public class TextRenderer extends GlyphListPipe {     CompositePipe outpipe;     public TextRenderer(CompositePipe pipe) {        outpipe = pipe;    }     protected void drawGlyphList(SunGraphics2D sg2d, GlyphList gl) {        int num = gl.getNumGlyphs();        Region clipRegion = sg2d.getCompClip();        int cx1 = clipRegion.getLoX();        int cy1 = clipRegion.getLoY();        int cx2 = clipRegion.getHiX();        int cy2 = clipRegion.getHiY();        Object ctx = null;        try {            int[] bounds = gl.getBounds();            Rectangle r = new Rectangle(bounds[0], bounds[1],                                        bounds[2] - bounds[0],                                        bounds[3] - bounds[1]);            Shape s = sg2d.untransformShape(r);            ctx = outpipe.startSequence(sg2d, s, r, bounds);            for (int i = 0; i < num; i++) {                gl.setGlyphIndex(i);                int metrics[] = gl.getMetrics();                int gx1 = metrics[0];                int gy1 = metrics[1];                int w = metrics[2];                int gx2 = gx1 + w;                int gy2 = gy1 + metrics[3];                int off = 0;                if (gx1 < cx1) {                    off = cx1 - gx1;                    gx1 = cx1;                }                if (gy1 < cy1) {                    off += (cy1 - gy1) * w;                    gy1 = cy1;                }                if (gx2 > cx2) gx2 = cx2;                if (gy2 > cy2) gy2 = cy2;                if (gx2 > gx1 && gy2 > gy1 &&                    outpipe.needTile(ctx, gx1, gy1, gx2 - gx1, gy2 - gy1))                {                    byte alpha[] = gl.getGrayBits();                    outpipe.renderPathTile(ctx, alpha, off, w,                                           gx1, gy1, gx2 - gx1, gy2 - gy1);                } else {                    outpipe.skipTile(ctx, gx1, gy1);                }            }        } finally {            if (ctx != null) {                outpipe.endSequence(ctx);            }        }    }}