/* * Copyright (c) 2000, 2005, 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.font.FontRenderContext;import java.awt.font.GlyphVector;import java.awt.font.TextLayout;import sun.java2d.SunGraphics2D;import sun.font.GlyphList;import sun.awt.SunHints; import java.awt.Shape;import java.awt.geom.AffineTransform;import java.awt.font.TextLayout; /** * A delegate pipe of SG2D for drawing "large" text with * a solid source colour to an opaque destination. * The text is drawn as a filled outline. * Since the developer is not explicitly requesting this way of * rendering, this should not be used if the current paint is not * a solid colour. * * If text anti-aliasing is requested by the application, and * filling path, an anti-aliasing fill pipe needs to * be invoked. * This involves making some of the same decisions as in the * validatePipe call, which may be in a SurfaceData subclass, so * its awkward to always ensure that the correct pipe is used. * The easiest thing, rather than reproducing much of that logic * is to call validatePipe() which works but is expensive, although * probably not compared to the cost of filling the path. * Note if AA hint is ON but text-AA hint is OFF this logic will * produce AA text which perhaps isn't what the user expected. * Note that the glyphvector obeys its FRC, not the G2D. */ public class OutlineTextRenderer implements TextPipe {     // Text with a height greater than the threshhold will be    // drawn via this pipe.    public static final int THRESHHOLD = 100;     public void drawChars(SunGraphics2D g2d,                          char data[], int offset, int length,                          int x, int y) {         String s = new String(data, offset, length);        drawString(g2d, s, x, y);    }     public void drawString(SunGraphics2D g2d, String str, double x, double y) {         if ("".equals(str)) {            return; // TextLayout constructor throws IAE on "".        }        TextLayout tl = new TextLayout(str, g2d.getFont(),                                       g2d.getFontRenderContext());        Shape s = tl.getOutline(AffineTransform.getTranslateInstance(x, y));         int textAAHint = g2d.getFontInfo().aaHint;         int prevaaHint = - 1;        if (textAAHint != SunHints.INTVAL_TEXT_ANTIALIAS_OFF &&            g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) {            prevaaHint = g2d.antialiasHint;            g2d.antialiasHint =  SunHints.INTVAL_ANTIALIAS_ON;            g2d.validatePipe();        } else if (textAAHint == SunHints.INTVAL_TEXT_ANTIALIAS_OFF            && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_OFF) {            prevaaHint = g2d.antialiasHint;            g2d.antialiasHint =  SunHints.INTVAL_ANTIALIAS_OFF;            g2d.validatePipe();        }         g2d.fill(s);         if (prevaaHint != -1) {             g2d.antialiasHint = prevaaHint;             g2d.validatePipe();        }    }     public void drawGlyphVector(SunGraphics2D g2d, GlyphVector gv,                                float x, float y) {          Shape s = gv.getOutline(x, y);        int prevaaHint = - 1;        FontRenderContext frc = gv.getFontRenderContext();        boolean aa = frc.isAntiAliased();         /* aa will be true if any AA mode has been specified.         * ie for LCD and 'gasp' modes too.         * We will check if 'gasp' has resolved AA to be "OFF", and         * in all other cases (ie AA ON and all LCD modes) use AA outlines.         */        if (aa) {            if (g2d.getGVFontInfo(gv.getFont(), frc).aaHint ==                SunHints.INTVAL_TEXT_ANTIALIAS_OFF) {                aa = false;            }        }         if (aa && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) {            prevaaHint = g2d.antialiasHint;            g2d.antialiasHint =  SunHints.INTVAL_ANTIALIAS_ON;            g2d.validatePipe();        } else if (!aa && g2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_OFF) {            prevaaHint = g2d.antialiasHint;            g2d.antialiasHint =  SunHints.INTVAL_ANTIALIAS_OFF;            g2d.validatePipe();        }         g2d.fill(s);         if (prevaaHint != -1) {             g2d.antialiasHint = prevaaHint;             g2d.validatePipe();        }    }}