[4256] | 1 | /*
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[6002] | 2 | * SVG Salamander
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| 3 | * Copyright (c) 2004, Mark McKay
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| 4 | * All rights reserved.
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[4256] | 5 | *
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[6002] | 6 | * Redistribution and use in source and binary forms, with or
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| 7 | * without modification, are permitted provided that the following
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| 8 | * conditions are met:
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[4256] | 9 | *
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[6002] | 10 | * - Redistributions of source code must retain the above
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| 11 | * copyright notice, this list of conditions and the following
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| 12 | * disclaimer.
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| 13 | * - Redistributions in binary form must reproduce the above
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| 14 | * copyright notice, this list of conditions and the following
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| 15 | * disclaimer in the documentation and/or other materials
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| 16 | * provided with the distribution.
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[4256] | 17 | *
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[6002] | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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| 23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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| 25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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| 29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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| 30 | *
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| 31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
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| 32 | * projects can be found at http://www.kitfox.com
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[4256] | 33 | *
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| 34 | * Created on January 26, 2004, 1:56 AM
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| 35 | */
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| 36 | package com.kitfox.svg;
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| 37 |
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| 38 | import com.kitfox.svg.xml.StyleAttribute;
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[6002] | 39 | import java.awt.Graphics2D;
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| 40 | import java.awt.Shape;
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| 41 | import java.awt.font.FontRenderContext;
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| 42 | import java.awt.geom.AffineTransform;
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| 43 | import java.awt.geom.GeneralPath;
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| 44 | import java.awt.geom.Rectangle2D;
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| 45 | import java.util.Iterator;
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| 46 | import java.util.LinkedList;
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| 47 | import java.util.regex.Matcher;
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| 48 | import java.util.regex.Pattern;
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[4256] | 49 |
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| 50 | //import org.apache.batik.ext.awt.geom.ExtendedGeneralPath;
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| 51 | /**
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| 52 | * @author Mark McKay
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| 53 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
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| 54 | */
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| 55 | public class Text extends ShapeElement
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| 56 | {
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[6002] | 57 | public static final String TAG_NAME = "text";
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[4256] | 58 |
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| 59 | float x = 0;
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| 60 | float y = 0;
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| 61 | AffineTransform transform = null;
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| 62 | String fontFamily;
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| 63 | float fontSize;
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| 64 | //List of strings and tspans containing the content of this node
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| 65 | LinkedList content = new LinkedList();
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| 66 | Shape textShape;
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| 67 | public static final int TXAN_START = 0;
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| 68 | public static final int TXAN_MIDDLE = 1;
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| 69 | public static final int TXAN_END = 2;
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| 70 | int textAnchor = TXAN_START;
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| 71 | public static final int TXST_NORMAL = 0;
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| 72 | public static final int TXST_ITALIC = 1;
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| 73 | public static final int TXST_OBLIQUE = 2;
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| 74 | int fontStyle;
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| 75 | public static final int TXWE_NORMAL = 0;
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| 76 | public static final int TXWE_BOLD = 1;
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| 77 | public static final int TXWE_BOLDER = 2;
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| 78 | public static final int TXWE_LIGHTER = 3;
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| 79 | public static final int TXWE_100 = 4;
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| 80 | public static final int TXWE_200 = 5;
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| 81 | public static final int TXWE_300 = 6;
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| 82 | public static final int TXWE_400 = 7;
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| 83 | public static final int TXWE_500 = 8;
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| 84 | public static final int TXWE_600 = 9;
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| 85 | public static final int TXWE_700 = 10;
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| 86 | public static final int TXWE_800 = 11;
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| 87 | public static final int TXWE_900 = 12;
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| 88 | int fontWeight;
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[6002] | 89 |
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| 90 | /**
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| 91 | * Creates a new instance of Stop
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| 92 | */
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[4256] | 93 | public Text()
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| 94 | {
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| 95 | }
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[6002] | 96 |
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| 97 | public String getTagName()
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| 98 | {
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| 99 | return TAG_NAME;
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| 100 | }
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| 101 |
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[4256] | 102 | public void appendText(String text)
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| 103 | {
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| 104 | content.addLast(text);
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| 105 | }
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[6002] | 106 |
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[4256] | 107 | public void appendTspan(Tspan tspan) throws SVGElementException
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| 108 | {
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| 109 | super.loaderAddChild(null, tspan);
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| 110 | content.addLast(tspan);
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| 111 | }
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[6002] | 112 |
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[4256] | 113 | /**
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| 114 | * Discard cached information
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| 115 | */
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| 116 | public void rebuild() throws SVGException
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| 117 | {
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| 118 | build();
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| 119 | }
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[6002] | 120 |
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[4256] | 121 | public java.util.List getContent()
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| 122 | {
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| 123 | return content;
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| 124 | }
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[6002] | 125 |
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[4256] | 126 | /**
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| 127 | * Called after the start element but before the end element to indicate
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| 128 | * each child tag that has been processed
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| 129 | */
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| 130 | public void loaderAddChild(SVGLoaderHelper helper, SVGElement child) throws SVGElementException
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| 131 | {
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| 132 | super.loaderAddChild(helper, child);
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[6002] | 133 |
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[4256] | 134 | content.addLast(child);
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| 135 | }
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[6002] | 136 |
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[4256] | 137 | /**
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| 138 | * Called during load process to add text scanned within a tag
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| 139 | */
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| 140 | public void loaderAddText(SVGLoaderHelper helper, String text)
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| 141 | {
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| 142 | Matcher matchWs = Pattern.compile("\\s*").matcher(text);
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[6002] | 143 | if (!matchWs.matches())
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| 144 | {
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| 145 | content.addLast(text);
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| 146 | }
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[4256] | 147 | }
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[6002] | 148 |
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[4256] | 149 | public void build() throws SVGException
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| 150 | {
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| 151 | super.build();
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[6002] | 152 |
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[4256] | 153 | StyleAttribute sty = new StyleAttribute();
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[6002] | 154 |
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| 155 | if (getPres(sty.setName("x")))
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| 156 | {
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| 157 | x = sty.getFloatValueWithUnits();
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| 158 | }
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| 159 |
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| 160 | if (getPres(sty.setName("y")))
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| 161 | {
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| 162 | y = sty.getFloatValueWithUnits();
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| 163 | }
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| 164 |
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| 165 | if (getStyle(sty.setName("font-family")))
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| 166 | {
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| 167 | fontFamily = sty.getStringValue();
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| 168 | } else
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| 169 | {
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| 170 | fontFamily = "Sans Serif";
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| 171 | }
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| 172 |
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| 173 | if (getStyle(sty.setName("font-size")))
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| 174 | {
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| 175 | fontSize = sty.getFloatValueWithUnits();
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| 176 | } else
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| 177 | {
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| 178 | fontSize = 12f;
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| 179 | }
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| 180 |
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[4256] | 181 | if (getStyle(sty.setName("font-style")))
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| 182 | {
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| 183 | String s = sty.getStringValue();
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| 184 | if ("normal".equals(s))
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| 185 | {
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| 186 | fontStyle = TXST_NORMAL;
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[6002] | 187 | } else if ("italic".equals(s))
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[4256] | 188 | {
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| 189 | fontStyle = TXST_ITALIC;
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[6002] | 190 | } else if ("oblique".equals(s))
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[4256] | 191 | {
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| 192 | fontStyle = TXST_OBLIQUE;
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| 193 | }
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[6002] | 194 | } else
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| 195 | {
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| 196 | fontStyle = TXST_NORMAL;
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[4256] | 197 | }
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[6002] | 198 |
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[4256] | 199 | if (getStyle(sty.setName("font-weight")))
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| 200 | {
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| 201 | String s = sty.getStringValue();
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| 202 | if ("normal".equals(s))
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| 203 | {
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| 204 | fontWeight = TXWE_NORMAL;
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[6002] | 205 | } else if ("bold".equals(s))
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[4256] | 206 | {
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| 207 | fontWeight = TXWE_BOLD;
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| 208 | }
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[6002] | 209 | } else
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| 210 | {
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| 211 | fontWeight = TXWE_BOLD;
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[4256] | 212 | }
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[6002] | 213 |
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[4256] | 214 | if (getStyle(sty.setName("text-anchor")))
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| 215 | {
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| 216 | String s = sty.getStringValue();
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[6002] | 217 | if (s.equals("middle"))
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| 218 | {
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| 219 | textAnchor = TXAN_MIDDLE;
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| 220 | } else if (s.equals("end"))
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| 221 | {
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| 222 | textAnchor = TXAN_END;
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| 223 | } else
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| 224 | {
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| 225 | textAnchor = TXAN_START;
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| 226 | }
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| 227 | } else
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| 228 | {
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| 229 | textAnchor = TXAN_START;
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[4256] | 230 | }
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[6002] | 231 |
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[4256] | 232 | //text anchor
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| 233 | //text-decoration
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| 234 | //text-rendering
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[6002] | 235 |
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[4256] | 236 | buildFont();
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| 237 | }
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[6002] | 238 |
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[4256] | 239 | protected void buildFont() throws SVGException
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| 240 | {
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| 241 | int style;
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| 242 | switch (fontStyle)
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| 243 | {
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| 244 | case TXST_ITALIC:
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| 245 | style = java.awt.Font.ITALIC;
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| 246 | break;
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| 247 | default:
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| 248 | style = java.awt.Font.PLAIN;
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| 249 | break;
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| 250 | }
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| 251 |
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| 252 | int weight;
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| 253 | switch (fontWeight)
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| 254 | {
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| 255 | case TXWE_BOLD:
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| 256 | case TXWE_BOLDER:
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| 257 | weight = java.awt.Font.BOLD;
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| 258 | break;
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| 259 | default:
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| 260 | weight = java.awt.Font.PLAIN;
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| 261 | break;
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| 262 | }
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[6002] | 263 |
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[4256] | 264 | //Get font
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| 265 | Font font = diagram.getUniverse().getFont(fontFamily);
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| 266 | if (font == null)
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| 267 | {
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| 268 | // System.err.println("Could not load font");
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[6002] | 269 |
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| 270 | java.awt.Font sysFont = new java.awt.Font(fontFamily, style | weight, (int) fontSize);
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[4256] | 271 | buildSysFont(sysFont);
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| 272 | return;
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| 273 | }
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[6002] | 274 |
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[4256] | 275 | // font = new java.awt.Font(font.getFamily(), style | weight, font.getSize());
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[6002] | 276 |
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[4256] | 277 | // Area textArea = new Area();
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| 278 | GeneralPath textPath = new GeneralPath();
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| 279 | textShape = textPath;
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[6002] | 280 |
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[4256] | 281 | float cursorX = x, cursorY = y;
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[6002] | 282 |
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[4256] | 283 | FontFace fontFace = font.getFontFace();
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| 284 | //int unitsPerEm = fontFace.getUnitsPerEm();
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| 285 | int ascent = fontFace.getAscent();
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[6002] | 286 | float fontScale = fontSize / (float) ascent;
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| 287 |
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[4256] | 288 | // AffineTransform oldXform = g.getTransform();
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| 289 | AffineTransform xform = new AffineTransform();
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[6002] | 290 |
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[4256] | 291 | for (Iterator it = content.iterator(); it.hasNext();)
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| 292 | {
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| 293 | Object obj = it.next();
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[6002] | 294 |
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[4256] | 295 | if (obj instanceof String)
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| 296 | {
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[6002] | 297 | String text = (String) obj;
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| 298 | if (text != null)
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| 299 | {
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| 300 | text = text.trim();
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| 301 | }
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| 302 |
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[4256] | 303 | strokeWidthScalar = 1f / fontScale;
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[6002] | 304 |
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[4256] | 305 | for (int i = 0; i < text.length(); i++)
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| 306 | {
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| 307 | xform.setToIdentity();
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| 308 | xform.setToTranslation(cursorX, cursorY);
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| 309 | xform.scale(fontScale, fontScale);
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| 310 | // g.transform(xform);
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[6002] | 311 |
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[4256] | 312 | String unicode = text.substring(i, i + 1);
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| 313 | MissingGlyph glyph = font.getGlyph(unicode);
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[6002] | 314 |
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[4256] | 315 | Shape path = glyph.getPath();
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| 316 | if (path != null)
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| 317 | {
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| 318 | path = xform.createTransformedShape(path);
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| 319 | textPath.append(path, false);
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| 320 | }
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| 321 | // else glyph.render(g);
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[6002] | 322 |
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[4256] | 323 | cursorX += fontScale * glyph.getHorizAdvX();
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[6002] | 324 |
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[4256] | 325 | // g.setTransform(oldXform);
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| 326 | }
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[6002] | 327 |
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[4256] | 328 | strokeWidthScalar = 1f;
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[6002] | 329 | } else if (obj instanceof Tspan)
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[4256] | 330 | {
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[6002] | 331 | Tspan tspan = (Tspan) obj;
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| 332 |
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[4256] | 333 | xform.setToIdentity();
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| 334 | xform.setToTranslation(cursorX, cursorY);
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| 335 | xform.scale(fontScale, fontScale);
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| 336 | // tspan.setCursorX(cursorX);
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| 337 | // tspan.setCursorY(cursorY);
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[6002] | 338 |
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[4256] | 339 | Shape tspanShape = tspan.getShape();
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| 340 | tspanShape = xform.createTransformedShape(tspanShape);
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| 341 | textPath.append(tspanShape, false);
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| 342 | // tspan.render(g);
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| 343 | // cursorX = tspan.getCursorX();
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| 344 | // cursorY = tspan.getCursorY();
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| 345 | }
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[6002] | 346 |
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[4256] | 347 | }
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[6002] | 348 |
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[4256] | 349 | switch (textAnchor)
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| 350 | {
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| 351 | case TXAN_MIDDLE:
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| 352 | {
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| 353 | AffineTransform at = new AffineTransform();
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| 354 | at.translate(-textPath.getBounds2D().getWidth() / 2, 0);
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| 355 | textPath.transform(at);
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| 356 | break;
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| 357 | }
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| 358 | case TXAN_END:
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| 359 | {
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| 360 | AffineTransform at = new AffineTransform();
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| 361 | at.translate(-textPath.getBounds2D().getWidth(), 0);
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| 362 | textPath.transform(at);
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| 363 | break;
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| 364 | }
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| 365 | }
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| 366 | }
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[6002] | 367 |
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[4256] | 368 | private void buildSysFont(java.awt.Font font) throws SVGException
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| 369 | {
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| 370 | GeneralPath textPath = new GeneralPath();
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| 371 | textShape = textPath;
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[6002] | 372 |
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[4256] | 373 | float cursorX = x, cursorY = y;
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[6002] | 374 |
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[4256] | 375 | // FontMetrics fm = g.getFontMetrics(font);
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| 376 | FontRenderContext frc = new FontRenderContext(null, true, true);
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[6002] | 377 |
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[4256] | 378 | // FontFace fontFace = font.getFontFace();
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| 379 | //int unitsPerEm = fontFace.getUnitsPerEm();
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| 380 | // int ascent = fm.getAscent();
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| 381 | // float fontScale = fontSize / (float)ascent;
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[6002] | 382 |
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[4256] | 383 | // AffineTransform oldXform = g.getTransform();
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| 384 | AffineTransform xform = new AffineTransform();
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[6002] | 385 |
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[4256] | 386 | for (Iterator it = content.iterator(); it.hasNext();)
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| 387 | {
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| 388 | Object obj = it.next();
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[6002] | 389 |
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[4256] | 390 | if (obj instanceof String)
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| 391 | {
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[6002] | 392 | String text = (String) obj;
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| 393 |
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[4256] | 394 | Shape textShape = font.createGlyphVector(frc, text).getOutline(cursorX, cursorY);
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| 395 | textPath.append(textShape, false);
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| 396 | // renderShape(g, textShape);
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| 397 | // g.drawString(text, cursorX, cursorY);
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[6002] | 398 |
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[4256] | 399 | Rectangle2D rect = font.getStringBounds(text, frc);
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[6002] | 400 | cursorX += (float) rect.getWidth();
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| 401 | } else if (obj instanceof Tspan)
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[4256] | 402 | {
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| 403 | /*
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[6002] | 404 | Tspan tspan = (Tspan)obj;
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[4256] | 405 |
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[6002] | 406 | xform.setToIdentity();
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| 407 | xform.setToTranslation(cursorX, cursorY);
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[4256] | 408 |
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[6002] | 409 | Shape tspanShape = tspan.getShape();
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| 410 | tspanShape = xform.createTransformedShape(tspanShape);
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| 411 | textArea.add(new Area(tspanShape));
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[4256] | 412 |
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[6002] | 413 | cursorX += tspanShape.getBounds2D().getWidth();
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[4256] | 414 | */
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[6002] | 415 |
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| 416 |
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| 417 | Tspan tspan = (Tspan) obj;
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[4256] | 418 | tspan.setCursorX(cursorX);
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| 419 | tspan.setCursorY(cursorY);
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| 420 | tspan.addShape(textPath);
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| 421 | cursorX = tspan.getCursorX();
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| 422 | cursorY = tspan.getCursorY();
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[6002] | 423 |
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[4256] | 424 | }
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| 425 | }
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[6002] | 426 |
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[4256] | 427 | switch (textAnchor)
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| 428 | {
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| 429 | case TXAN_MIDDLE:
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| 430 | {
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| 431 | AffineTransform at = new AffineTransform();
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| 432 | at.translate(-textPath.getBounds2D().getWidth() / 2, 0);
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| 433 | textPath.transform(at);
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| 434 | break;
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| 435 | }
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| 436 | case TXAN_END:
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| 437 | {
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| 438 | AffineTransform at = new AffineTransform();
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| 439 | at.translate(-textPath.getBounds2D().getWidth(), 0);
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| 440 | textPath.transform(at);
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| 441 | break;
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| 442 | }
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---|
| 443 | }
|
---|
| 444 | }
|
---|
[6002] | 445 |
|
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[4256] | 446 | public void render(Graphics2D g) throws SVGException
|
---|
| 447 | {
|
---|
| 448 | beginLayer(g);
|
---|
| 449 | renderShape(g, textShape);
|
---|
| 450 | finishLayer(g);
|
---|
| 451 | }
|
---|
[6002] | 452 |
|
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[4256] | 453 | public Shape getShape()
|
---|
| 454 | {
|
---|
| 455 | return shapeToParent(textShape);
|
---|
| 456 | }
|
---|
[6002] | 457 |
|
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[4256] | 458 | public Rectangle2D getBoundingBox() throws SVGException
|
---|
| 459 | {
|
---|
| 460 | return boundsToParent(includeStrokeInBounds(textShape.getBounds2D()));
|
---|
| 461 | }
|
---|
[6002] | 462 |
|
---|
[4256] | 463 | /**
|
---|
[6002] | 464 | * Updates all attributes in this diagram associated with a time event. Ie,
|
---|
| 465 | * all attributes with track information.
|
---|
| 466 | *
|
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[4256] | 467 | * @return - true if this node has changed state as a result of the time
|
---|
| 468 | * update
|
---|
| 469 | */
|
---|
| 470 | public boolean updateTime(double curTime) throws SVGException
|
---|
| 471 | {
|
---|
| 472 | // if (trackManager.getNumTracks() == 0) return false;
|
---|
| 473 | boolean changeState = super.updateTime(curTime);
|
---|
[6002] | 474 |
|
---|
[4256] | 475 | //Get current values for parameters
|
---|
| 476 | StyleAttribute sty = new StyleAttribute();
|
---|
| 477 | boolean shapeChange = false;
|
---|
[6002] | 478 |
|
---|
[4256] | 479 | if (getPres(sty.setName("x")))
|
---|
| 480 | {
|
---|
| 481 | float newVal = sty.getFloatValueWithUnits();
|
---|
| 482 | if (newVal != x)
|
---|
| 483 | {
|
---|
| 484 | x = newVal;
|
---|
| 485 | shapeChange = true;
|
---|
| 486 | }
|
---|
| 487 | }
|
---|
[6002] | 488 |
|
---|
[4256] | 489 | if (getPres(sty.setName("y")))
|
---|
| 490 | {
|
---|
| 491 | float newVal = sty.getFloatValueWithUnits();
|
---|
| 492 | if (newVal != y)
|
---|
| 493 | {
|
---|
| 494 | y = newVal;
|
---|
| 495 | shapeChange = true;
|
---|
| 496 | }
|
---|
| 497 | }
|
---|
[6002] | 498 |
|
---|
[4256] | 499 | if (getPres(sty.setName("font-family")))
|
---|
| 500 | {
|
---|
| 501 | String newVal = sty.getStringValue();
|
---|
| 502 | if (!newVal.equals(fontFamily))
|
---|
| 503 | {
|
---|
| 504 | fontFamily = newVal;
|
---|
| 505 | shapeChange = true;
|
---|
| 506 | }
|
---|
| 507 | }
|
---|
[6002] | 508 |
|
---|
[4256] | 509 | if (getPres(sty.setName("font-size")))
|
---|
| 510 | {
|
---|
| 511 | float newVal = sty.getFloatValueWithUnits();
|
---|
| 512 | if (newVal != fontSize)
|
---|
| 513 | {
|
---|
| 514 | fontSize = newVal;
|
---|
| 515 | shapeChange = true;
|
---|
| 516 | }
|
---|
| 517 | }
|
---|
[6002] | 518 |
|
---|
| 519 |
|
---|
[4256] | 520 | if (getStyle(sty.setName("font-style")))
|
---|
| 521 | {
|
---|
| 522 | String s = sty.getStringValue();
|
---|
| 523 | int newVal = fontStyle;
|
---|
| 524 | if ("normal".equals(s))
|
---|
| 525 | {
|
---|
| 526 | newVal = TXST_NORMAL;
|
---|
[6002] | 527 | } else if ("italic".equals(s))
|
---|
[4256] | 528 | {
|
---|
| 529 | newVal = TXST_ITALIC;
|
---|
[6002] | 530 | } else if ("oblique".equals(s))
|
---|
[4256] | 531 | {
|
---|
| 532 | newVal = TXST_OBLIQUE;
|
---|
| 533 | }
|
---|
| 534 | if (newVal != fontStyle)
|
---|
| 535 | {
|
---|
| 536 | fontStyle = newVal;
|
---|
| 537 | shapeChange = true;
|
---|
| 538 | }
|
---|
| 539 | }
|
---|
[6002] | 540 |
|
---|
[4256] | 541 | if (getStyle(sty.setName("font-weight")))
|
---|
| 542 | {
|
---|
| 543 | String s = sty.getStringValue();
|
---|
| 544 | int newVal = fontWeight;
|
---|
| 545 | if ("normal".equals(s))
|
---|
| 546 | {
|
---|
| 547 | newVal = TXWE_NORMAL;
|
---|
[6002] | 548 | } else if ("bold".equals(s))
|
---|
[4256] | 549 | {
|
---|
| 550 | newVal = TXWE_BOLD;
|
---|
| 551 | }
|
---|
| 552 | if (newVal != fontWeight)
|
---|
| 553 | {
|
---|
| 554 | fontWeight = newVal;
|
---|
| 555 | shapeChange = true;
|
---|
| 556 | }
|
---|
| 557 | }
|
---|
[6002] | 558 |
|
---|
[4256] | 559 | if (shapeChange)
|
---|
| 560 | {
|
---|
| 561 | build();
|
---|
| 562 | // buildFont();
|
---|
| 563 | // return true;
|
---|
| 564 | }
|
---|
[6002] | 565 |
|
---|
[4256] | 566 | return changeState || shapeChange;
|
---|
| 567 | }
|
---|
| 568 | }
|
---|