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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