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iText, a free Java-PDF library
/*
* $Id: Font.java 3678 2009-02-07 14:46:01Z blowagie $
*
* Copyright 1999, 2000, 2001, 2002 by Bruno Lowagie.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text;
import java.awt.Color;
import com.lowagie.text.html.Markup;
import com.lowagie.text.pdf.BaseFont;
/**
* Contains all the specifications of a font: fontfamily, size, style and color.
*
* Example:
*
*
*
* Paragraph p = new Paragraph("This is a paragraph", new
* Font(Font.HELVETICA, 18, Font.BOLDITALIC, new Color(0, 0, 255)) );
*
*
*
*
*/
public class Font implements Comparable {
// static membervariables for the different families
/** a possible value of a font family. */
public static final int COURIER = 0;
/** a possible value of a font family. */
public static final int HELVETICA = 1;
/** a possible value of a font family. */
public static final int TIMES_ROMAN = 2;
/** a possible value of a font family. */
public static final int SYMBOL = 3;
/** a possible value of a font family. */
public static final int ZAPFDINGBATS = 4;
// static membervariables for the different styles
/** this is a possible style. */
public static final int NORMAL = 0;
/** this is a possible style. */
public static final int BOLD = 1;
/** this is a possible style. */
public static final int ITALIC = 2;
/** this is a possible style. */
public static final int UNDERLINE = 4;
/** this is a possible style. */
public static final int STRIKETHRU = 8;
/** this is a possible style. */
public static final int BOLDITALIC = BOLD | ITALIC;
// static membervariables
/** the value of an undefined attribute. */
public static final int UNDEFINED = -1;
/** the value of the default size. */
public static final int DEFAULTSIZE = 12;
// membervariables
/** the value of the fontfamily. */
private int family = UNDEFINED;
/** the value of the fontsize. */
private float size = UNDEFINED;
/** the value of the style. */
private int style = UNDEFINED;
/** the value of the color. */
private Color color = null;
/** the external font */
private BaseFont baseFont = null;
// constructors
/**
* Copy constructor of a Font
*
* @param other
* the font that has to be copied
*/
public Font(Font other) {
this.family = other.family;
this.size = other.size;
this.style = other.style;
this.color = other.color;
this.baseFont = other.baseFont;
}
/**
* Constructs a Font.
*
* @param family
* the family to which this font belongs
* @param size
* the size of this font
* @param style
* the style of this font
* @param color
* the Color of this font.
*/
public Font(int family, float size, int style, Color color) {
this.family = family;
this.size = size;
this.style = style;
this.color = color;
}
/**
* Constructs a Font.
*
* @param bf
* the external font
* @param size
* the size of this font
* @param style
* the style of this font
* @param color
* the Color of this font.
*/
public Font(BaseFont bf, float size, int style, Color color) {
this.baseFont = bf;
this.size = size;
this.style = style;
this.color = color;
}
/**
* Constructs a Font.
*
* @param bf
* the external font
* @param size
* the size of this font
* @param style
* the style of this font
*/
public Font(BaseFont bf, float size, int style) {
this(bf, size, style, null);
}
/**
* Constructs a Font.
*
* @param bf
* the external font
* @param size
* the size of this font
*/
public Font(BaseFont bf, float size) {
this(bf, size, UNDEFINED, null);
}
/**
* Constructs a Font.
*
* @param bf
* the external font
*/
public Font(BaseFont bf) {
this(bf, UNDEFINED, UNDEFINED, null);
}
/**
* Constructs a Font.
*
* @param family
* the family to which this font belongs
* @param size
* the size of this font
* @param style
* the style of this font
*/
public Font(int family, float size, int style) {
this(family, size, style, null);
}
/**
* Constructs a Font.
*
* @param family
* the family to which this font belongs
* @param size
* the size of this font
*/
public Font(int family, float size) {
this(family, size, UNDEFINED, null);
}
/**
* Constructs a Font.
*
* @param family
* the family to which this font belongs
*/
public Font(int family) {
this(family, UNDEFINED, UNDEFINED, null);
}
/**
* Constructs a Font.
*/
public Font() {
this(UNDEFINED, UNDEFINED, UNDEFINED, null);
}
// implementation of the Comparable interface
/**
* Compares this Font with another
*
* @param object
* the other Font
* @return a value
*/
public int compareTo(Object object) {
if (object == null) {
return -1;
}
Font font;
try {
font = (Font) object;
if (baseFont != null && !baseFont.equals(font.getBaseFont())) {
return -2;
}
if (this.family != font.getFamily()) {
return 1;
}
if (this.size != font.getSize()) {
return 2;
}
if (this.style != font.getStyle()) {
return 3;
}
if (this.color == null) {
if (font.color == null) {
return 0;
}
return 4;
}
if (font.color == null) {
return 4;
}
if (this.color.equals(font.getColor())) {
return 0;
}
return 4;
} catch (ClassCastException cce) {
return -3;
}
}
// FAMILY
/**
* Gets the family of this font.
*
* @return the value of the family
*/
public int getFamily() {
return family;
}
/**
* Gets the familyname as a String.
*
* @return the familyname
*/
public String getFamilyname() {
String tmp = "unknown";
switch (getFamily()) {
case Font.COURIER:
return FontFactory.COURIER;
case Font.HELVETICA:
return FontFactory.HELVETICA;
case Font.TIMES_ROMAN:
return FontFactory.TIMES_ROMAN;
case Font.SYMBOL:
return FontFactory.SYMBOL;
case Font.ZAPFDINGBATS:
return FontFactory.ZAPFDINGBATS;
default:
if (baseFont != null) {
String[][] names = baseFont.getFamilyFontName();
for (int i = 0; i < names.length; i++) {
if ("0".equals(names[i][2])) {
return names[i][3];
}
if ("1033".equals(names[i][2])) {
tmp = names[i][3];
}
if ("".equals(names[i][2])) {
tmp = names[i][3];
}
}
}
}
return tmp;
}
/**
* Sets the family using a String ("Courier", "Helvetica",
* "Times New Roman", "Symbol" or "ZapfDingbats").
*
* @param family
* A String representing a certain font-family.
*/
public void setFamily(String family) {
this.family = getFamilyIndex(family);
}
/**
* Translates a String -value of a certain family into the
* index that is used for this family in this class.
*
* @param family
* A String representing a certain font-family
* @return the corresponding index
*/
public static int getFamilyIndex(String family) {
if (family.equalsIgnoreCase(FontFactory.COURIER)) {
return COURIER;
}
if (family.equalsIgnoreCase(FontFactory.HELVETICA)) {
return HELVETICA;
}
if (family.equalsIgnoreCase(FontFactory.TIMES_ROMAN)) {
return TIMES_ROMAN;
}
if (family.equalsIgnoreCase(FontFactory.SYMBOL)) {
return SYMBOL;
}
if (family.equalsIgnoreCase(FontFactory.ZAPFDINGBATS)) {
return ZAPFDINGBATS;
}
return UNDEFINED;
}
// SIZE
/**
* Gets the size of this font.
*
* @return a size
*/
public float getSize() {
return size;
}
/**
* Gets the size that can be used with the calculated BaseFont
* .
*
* @return the size that can be used with the calculated BaseFont
*
*/
public float getCalculatedSize() {
float s = this.size;
if (s == UNDEFINED) {
s = DEFAULTSIZE;
}
return s;
}
/**
* Gets the leading that can be used with this font.
*
* @param linespacing
* a certain linespacing
* @return the height of a line
*/
public float getCalculatedLeading(float linespacing) {
return linespacing * getCalculatedSize();
}
/**
* Sets the size.
*
* @param size
* The new size of the font.
*/
public void setSize(float size) {
this.size = size;
}
// STYLE
/**
* Gets the style of this font.
*
* @return a size
*/
public int getStyle() {
return style;
}
/**
* Gets the style that can be used with the calculated BaseFont
* .
*
* @return the style that can be used with the calculated BaseFont
*
*/
public int getCalculatedStyle() {
int style = this.style;
if (style == UNDEFINED) {
style = NORMAL;
}
if (baseFont != null)
return style;
if (family == SYMBOL || family == ZAPFDINGBATS)
return style;
else
return style & (~BOLDITALIC);
}
/**
* checks if this font is Bold.
*
* @return a boolean
*/
public boolean isBold() {
if (style == UNDEFINED) {
return false;
}
return (style & BOLD) == BOLD;
}
/**
* checks if this font is Bold.
*
* @return a boolean
*/
public boolean isItalic() {
if (style == UNDEFINED) {
return false;
}
return (style & ITALIC) == ITALIC;
}
/**
* checks if this font is underlined.
*
* @return a boolean
*/
public boolean isUnderlined() {
if (style == UNDEFINED) {
return false;
}
return (style & UNDERLINE) == UNDERLINE;
}
/**
* checks if the style of this font is STRIKETHRU.
*
* @return a boolean
*/
public boolean isStrikethru() {
if (style == UNDEFINED) {
return false;
}
return (style & STRIKETHRU) == STRIKETHRU;
}
/**
* Sets the style.
*
* @param style
* the style.
*/
public void setStyle(int style) {
this.style = style;
}
/**
* Sets the style using a String containing one of more of
* the following values: normal, bold, italic, underline, strike.
*
* @param style
* A String representing a certain style.
*/
public void setStyle(String style) {
if (this.style == UNDEFINED)
this.style = NORMAL;
this.style |= getStyleValue(style);
}
/**
* Translates a String -value of a certain style into the
* index value is used for this style in this class.
*
* @param style
* A String
* @return the corresponding value
*/
public static int getStyleValue(String style) {
int s = 0;
if (style.indexOf(Markup.CSS_VALUE_NORMAL) != -1) {
s |= NORMAL;
}
if (style.indexOf(Markup.CSS_VALUE_BOLD) != -1) {
s |= BOLD;
}
if (style.indexOf(Markup.CSS_VALUE_ITALIC) != -1) {
s |= ITALIC;
}
if (style.indexOf(Markup.CSS_VALUE_OBLIQUE) != -1) {
s |= ITALIC;
}
if (style.indexOf(Markup.CSS_VALUE_UNDERLINE) != -1) {
s |= UNDERLINE;
}
if (style.indexOf(Markup.CSS_VALUE_LINETHROUGH) != -1) {
s |= STRIKETHRU;
}
return s;
}
// COLOR
/**
* Gets the color of this font.
*
* @return a color
*/
public Color getColor() {
return color;
}
/**
* Sets the color.
*
* @param color
* the new color of the font
*/
public void setColor(Color color) {
this.color = color;
}
/**
* Sets the color.
*
* @param red
* the red-value of the new color
* @param green
* the green-value of the new color
* @param blue
* the blue-value of the new color
*/
public void setColor(int red, int green, int blue) {
this.color = new Color(red, green, blue);
}
// BASEFONT
/**
* Gets the BaseFont inside this object.
*
* @return the BaseFont
*/
public BaseFont getBaseFont() {
return baseFont;
}
/**
* Gets the BaseFont this class represents. For the built-in
* fonts a BaseFont is calculated.
*
* @param specialEncoding
* true to use the special encoding for Symbol and
* ZapfDingbats, false to always use Cp1252
*
* @return the BaseFont this class represents
*/
public BaseFont getCalculatedBaseFont(boolean specialEncoding) {
if (baseFont != null)
return baseFont;
int style = this.style;
if (style == UNDEFINED) {
style = NORMAL;
}
String fontName = BaseFont.HELVETICA;
String encoding = BaseFont.WINANSI;
BaseFont cfont = null;
switch (family) {
case COURIER:
switch (style & BOLDITALIC) {
case BOLD:
fontName = BaseFont.COURIER_BOLD;
break;
case ITALIC:
fontName = BaseFont.COURIER_OBLIQUE;
break;
case BOLDITALIC:
fontName = BaseFont.COURIER_BOLDOBLIQUE;
break;
default:
//case NORMAL:
fontName = BaseFont.COURIER;
break;
}
break;
case TIMES_ROMAN:
switch (style & BOLDITALIC) {
case BOLD:
fontName = BaseFont.TIMES_BOLD;
break;
case ITALIC:
fontName = BaseFont.TIMES_ITALIC;
break;
case BOLDITALIC:
fontName = BaseFont.TIMES_BOLDITALIC;
break;
default:
case NORMAL:
fontName = BaseFont.TIMES_ROMAN;
break;
}
break;
case SYMBOL:
fontName = BaseFont.SYMBOL;
if (specialEncoding)
encoding = BaseFont.SYMBOL;
break;
case ZAPFDINGBATS:
fontName = BaseFont.ZAPFDINGBATS;
if (specialEncoding)
encoding = BaseFont.ZAPFDINGBATS;
break;
default:
case Font.HELVETICA:
switch (style & BOLDITALIC) {
case BOLD:
fontName = BaseFont.HELVETICA_BOLD;
break;
case ITALIC:
fontName = BaseFont.HELVETICA_OBLIQUE;
break;
case BOLDITALIC:
fontName = BaseFont.HELVETICA_BOLDOBLIQUE;
break;
default:
case NORMAL:
fontName = BaseFont.HELVETICA;
break;
}
break;
}
try {
cfont = BaseFont.createFont(fontName, encoding, false);
} catch (Exception ee) {
throw new ExceptionConverter(ee);
}
return cfont;
}
// Helper methods
/**
* Checks if the properties of this font are undefined or null.
*
* If so, the standard should be used.
*
* @return a boolean
*/
public boolean isStandardFont() {
return (family == UNDEFINED && size == UNDEFINED && style == UNDEFINED
&& color == null && baseFont == null);
}
/**
* Replaces the attributes that are equal to null with the
* attributes of a given font.
*
* @param font
* the font of a bigger element class
* @return a Font
*/
public Font difference(Font font) {
if (font == null) return this;
// size
float dSize = font.size;
if (dSize == UNDEFINED) {
dSize = this.size;
}
// style
int dStyle = UNDEFINED;
int style1 = this.style;
int style2 = font.getStyle();
if (style1 != UNDEFINED || style2 != UNDEFINED) {
if (style1 == UNDEFINED)
style1 = 0;
if (style2 == UNDEFINED)
style2 = 0;
dStyle = style1 | style2;
}
// color
Color dColor = font.color;
if (dColor == null) {
dColor = this.color;
}
// family
if (font.baseFont != null) {
return new Font(font.baseFont, dSize, dStyle, dColor);
}
if (font.getFamily() != UNDEFINED) {
return new Font(font.family, dSize, dStyle, dColor);
}
if (this.baseFont != null) {
if (dStyle == style1) {
return new Font(this.baseFont, dSize, dStyle, dColor);
} else {
return FontFactory.getFont(this.getFamilyname(), dSize, dStyle,
dColor);
}
}
return new Font(this.family, dSize, dStyle, dColor);
}
}
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