| /* |
| * 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(); |
| } |
| } |
| } |