Source Code Cross Referenced for PdfFont.java in  » PDF » pdf-itext » com » lowagie » text » pdf » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » pdf itext » com.lowagie.text.pdf 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: PdfFont.java 2742 2007-05-08 13:04:56Z blowagie $
003:         * $Name$
004:         *
005:         * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
006:         *
007:         * The contents of this file are subject to the Mozilla Public License Version 1.1
008:         * (the "License"); you may not use this file except in compliance with the License.
009:         * You may obtain a copy of the License at http://www.mozilla.org/MPL/
010:         *
011:         * Software distributed under the License is distributed on an "AS IS" basis,
012:         * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
013:         * for the specific language governing rights and limitations under the License.
014:         *
015:         * The Original Code is 'iText, a free JAVA-PDF library'.
016:         *
017:         * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
018:         * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
019:         * All Rights Reserved.
020:         * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
021:         * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
022:         *
023:         * Contributor(s): all the names of the contributors are added in the source code
024:         * where applicable.
025:         *
026:         * Alternatively, the contents of this file may be used under the terms of the
027:         * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
028:         * provisions of LGPL are applicable instead of those above.  If you wish to
029:         * allow use of your version of this file only under the terms of the LGPL
030:         * License and not to allow others to use your version of this file under
031:         * the MPL, indicate your decision by deleting the provisions above and
032:         * replace them with the notice and other provisions required by the LGPL.
033:         * If you do not delete the provisions above, a recipient may use your version
034:         * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
035:         *
036:         * This library is free software; you can redistribute it and/or modify it
037:         * under the terms of the MPL as stated above or under the terms of the GNU
038:         * Library General Public License as published by the Free Software Foundation;
039:         * either version 2 of the License, or any later version.
040:         *
041:         * This library is distributed in the hope that it will be useful, but WITHOUT
042:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
043:         * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
044:         * details.
045:         *
046:         * If you didn't download this code from the following link, you should check if
047:         * you aren't using an obsolete version:
048:         * http://www.lowagie.com/iText/
049:         */
050:
051:        package com.lowagie.text.pdf;
052:
053:        import com.lowagie.text.ExceptionConverter;
054:        import com.lowagie.text.Image;
055:
056:        /**
057:         * <CODE>PdfFont</CODE> is the Pdf Font object.
058:         * <P>
059:         * Limitation: in this class only base 14 Type 1 fonts (courier, courier bold, courier oblique,
060:         * courier boldoblique, helvetica, helvetica bold, helvetica oblique, helvetica boldoblique,
061:         * symbol, times roman, times bold, times italic, times bolditalic, zapfdingbats) and their
062:         * standard encoding (standard, MacRoman, (MacExpert,) WinAnsi) are supported.<BR>
063:         * This object is described in the 'Portable Document Format Reference Manual version 1.3'
064:         * section 7.7 (page 198-203).
065:         *
066:         * @see		PdfName
067:         * @see		PdfDictionary
068:         * @see		BadPdfFormatException
069:         */
070:
071:        class PdfFont implements  Comparable {
072:
073:            /** the font metrics. */
074:            private BaseFont font;
075:
076:            /** the size. */
077:            private float size;
078:
079:            /** an image. */
080:            protected Image image;
081:
082:            protected float hScale = 1;
083:
084:            // constructors
085:
086:            PdfFont(BaseFont bf, float size) {
087:                this .size = size;
088:                font = bf;
089:            }
090:
091:            // methods
092:
093:            /**
094:             * Compares this <CODE>PdfFont</CODE> with another
095:             *
096:             * @param	object	the other <CODE>PdfFont</CODE>
097:             * @return	a value
098:             */
099:
100:            public int compareTo(Object object) {
101:                if (image != null)
102:                    return 0;
103:                if (object == null) {
104:                    return -1;
105:                }
106:                PdfFont pdfFont;
107:                try {
108:                    pdfFont = (PdfFont) object;
109:                    if (font != pdfFont.font) {
110:                        return 1;
111:                    }
112:                    if (this .size() != pdfFont.size()) {
113:                        return 2;
114:                    }
115:                    return 0;
116:                } catch (ClassCastException cce) {
117:                    return -2;
118:                }
119:            }
120:
121:            /**
122:             * Returns the size of this font.
123:             *
124:             * @return		a size
125:             */
126:
127:            float size() {
128:                if (image == null)
129:                    return size;
130:                else {
131:                    return image.getScaledHeight();
132:                }
133:            }
134:
135:            /**
136:             * Returns the approximative width of 1 character of this font.
137:             *
138:             * @return		a width in Text Space
139:             */
140:
141:            float width() {
142:                return width(' ');
143:            }
144:
145:            /**
146:             * Returns the width of a certain character of this font.
147:             *
148:             * @param		character	a certain character
149:             * @return		a width in Text Space
150:             */
151:
152:            float width(char character) {
153:                if (image == null)
154:                    return font.getWidthPoint(character, size) * hScale;
155:                else
156:                    return image.getScaledWidth();
157:            }
158:
159:            float width(String s) {
160:                if (image == null)
161:                    return font.getWidthPoint(s, size) * hScale;
162:                else
163:                    return image.getScaledWidth();
164:            }
165:
166:            BaseFont getFont() {
167:                return font;
168:            }
169:
170:            void setImage(Image image) {
171:                this .image = image;
172:            }
173:
174:            static PdfFont getDefaultFont() {
175:                try {
176:                    BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA,
177:                            BaseFont.WINANSI, false);
178:                    return new PdfFont(bf, 12);
179:                } catch (Exception ee) {
180:                    throw new ExceptionConverter(ee);
181:                }
182:            }
183:
184:            void setHorizontalScaling(float hScale) {
185:                this.hScale = hScale;
186:            }
187:        }
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