1 /*

     2  * Copyright 2008 Sun Microsystems, Inc.  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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    24 package com.sun.hotspot.igv.svg;

    25 

    26 import java.awt.Graphics2D;

    27 import java.io.Writer;

    28 import java.lang.reflect.Constructor;

    29 import java.lang.reflect.InvocationTargetException;

    30 import java.lang.reflect.Method;

    31 import org.w3c.dom.DOMImplementation;

    32 

    33 /**

    34  *

    35  * @author Thomas Wuerthinger

    36  */

    37 public class BatikSVG {

    38 

    39     private static Constructor SVGGraphics2DConstructor;

    40     private static Method Method_stream;

    41     private static Method Method_createDefault;

    42     private static Method Method_getDOMImplementation;

    43     private static Method Method_setEmbeddedFontsOn;

    44 

    45     public static Graphics2D createGraphicsObject() {

    46         try {

    47             if (SVGGraphics2DConstructor == null) {

    48                 ClassLoader cl = BatikSVG.class.getClassLoader();

    49                 Class Class_GenericDOMImplementation = cl.loadClass("org.apache.batik.dom.GenericDOMImplementation");

    50                 Class Class_SVGGeneratorContext = cl.loadClass("org.apache.batik.svggen.SVGGeneratorContext");

    51                 Class Class_SVGGraphics2D = cl.loadClass("org.apache.batik.svggen.SVGGraphics2D");

    52                 Method_getDOMImplementation = Class_GenericDOMImplementation.getDeclaredMethod("getDOMImplementation", new Class[0]);

    53                 Method_createDefault = Class_SVGGeneratorContext.getDeclaredMethod("createDefault", new Class[]{org.w3c.dom.Document.class});

    54                 Method_setEmbeddedFontsOn = Class_SVGGeneratorContext.getDeclaredMethod("setEmbeddedFontsOn", new Class[]{boolean.class});

    55                 Method_stream = Class_SVGGraphics2D.getDeclaredMethod("stream", Writer.class, boolean.class);

    56                 SVGGraphics2DConstructor = Class_SVGGraphics2D.getConstructor(Class_SVGGeneratorContext, boolean.class);

    57             }

    58             DOMImplementation dom = (DOMImplementation) Method_getDOMImplementation.invoke(null);

    59             org.w3c.dom.Document document = dom.createDocument("http://www.w3.org/2000/svg", "svg", null);

    60             Object ctx = Method_createDefault.invoke(null, document);

    61             Method_setEmbeddedFontsOn.invoke(ctx, true);

    62             Graphics2D svgGenerator = (Graphics2D) SVGGraphics2DConstructor.newInstance(ctx, true);

    63             return svgGenerator;

    64         } catch (ClassNotFoundException e) {

    65             return null;

    66         } catch (NoSuchMethodException e) {

    67             return null;

    68         } catch (IllegalAccessException e) {

    69             return null;

    70         } catch (InvocationTargetException e) {

    71             return null;

    72         } catch (InstantiationException e) {

    73             return null;

    74         }

    75     }

    76 

    77     public static void printToStream(Graphics2D svgGenerator, Writer stream, boolean useCSS) {

    78         try {

    79             Method_stream.invoke(svgGenerator, stream, useCSS);

    80         } catch (IllegalAccessException e) {

    81             assert false;

    82         } catch (InvocationTargetException e) {

    83             assert false;

    84         }

    85     }

    86 }