+++ /dev/null
-/* FontMetrics.java -- Information about about a fonts display characteristics
- Copyright (C) 1999, 2002 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.awt;
-
-// FIXME: I leave many methods basically unimplemented. This
-// should be reviewed.
-
-/**
- * This class returns information about the display characteristics of
- * a font. It is abstract, and concrete subclasses should implement at
- * least the following methods:
- * <p>
- * <ul>
- * <li>getAscent
- * <li>getDescent
- * <li>getLeading()
- * <li>getMaxAdvance()
- * <li>charWidth(char)
- * <li>charsWidth(char[], int, int)
- * </ul>
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public abstract class FontMetrics implements java.io.Serializable
-{
-
-/*
- * Static Variables
- */
-
-// Serialization constant
-private static final long serialVersionUID = 1681126225205050147L;
-
-/*************************************************************************/
-
-/*
- * Instance Variables
- */
-
-/**
- * This is the font for which metrics will be returned.
- */
-protected Font font;
-
-/*************************************************************************/
-
-/*
- * Constructors
- */
-
-/**
- * Initializes a new instance of <code>FontMetrics</code> for the
- * specified font.
- *
- * @param font The font to return metric information for.
- */
-protected
-FontMetrics(Font font)
-{
- this.font = font;
-}
-
-/*************************************************************************/
-
-/*
- * Instance Methods
- */
-
-/**
- * Returns the font that this object is creating metric information fo.
- *
- * @return The font for this object.
- */
-public Font
-getFont()
-{
- return(font);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the leading, or spacing between lines, for this font.
- *
- * @return The font leading.
- */
-public int
-getLeading()
-{
- return(0);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the ascent of the font, which is the distance from the base
- * to the top of the majority of characters in the set. Some characters
- * can exceed this value however.
- *
- * @return The font ascent.
- */
-public int
-getAscent()
-{
- return(1);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the descent of the font, which is the distance from the base
- * to the bottom of the majority of characters in the set. Some characters
- * can exceed this value however.
- *
- * @return The font descent.
- */
-public int
-getDescent()
-{
- return(1);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the height of a line in this font. This will be the sum
- * of the leading, the ascent, and the descent.
- *
- * @return The height of the font.
- */
-public int
-getHeight()
-{
- return(getAscent() + getDescent() + getLeading());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the maximum ascent value. This is the maximum distance any
- * character in the font rised above the baseline.
- *
- * @return The maximum ascent for this font.
- */
-public int
-getMaxAscent()
-{
- return(getAscent());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the maximum descent value. This is the maximum distance any
- * character in the font extends below the baseline.
- *
- * @return The maximum descent for this font.
- */
-public int
-getMaxDescent()
-{
- return(getDescent());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the maximum descent value. This is the maximum distance any
- * character in the font extends below the baseline.
- *
- * @return The maximum descent for this font.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getMaxDescent()</code>.
- */
-public int
-getMaxDecent()
-{
- return(getMaxDescent());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the width of the widest character in the font.
- *
- * @return The width of the widest character in the font.
- */
-public int
-getMaxAdvance()
-{
- return(-1);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the width of the specified character.
- *
- * @param ch The character to return the width of.
- *
- * @return The width of the specified character.
- */
-public int
-charWidth(int ch)
-{
- return(charWidth((char)ch));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the width of the specified character.
- *
- * @param ch The character to return the width of.
- *
- * @return The width of the specified character.
- */
-public int
-charWidth(char ch)
-{
- return(1);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the total width of the specified string
- *
- * @param str The string to return the width of.
- *
- * @return The width of the string.
- */
-public int
-stringWidth(String str)
-{
- char[] buf = new char[str.length()];
- str.getChars(0, str.length(), buf, 0);
-
- return(charsWidth(buf, 0, buf.length));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the total width of the specified character array.
- *
- * @param buf The character array containing the data.
- * @param offset The offset into the array to start calculating from.
- * @param len The total number of bytes to process.
- *
- * @return The width of the requested characters.
- */
-public int
-charsWidth(char buf[], int offset, int len)
-{
- int total_width = 0;
- for (int i = offset; i < len; i++)
- total_width = charWidth(buf[i]);
-
- return(total_width);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the total width of the specified byte array.
- *
- * @param buf The byte array containing the data.
- * @param offset The offset into the array to start calculating from.
- * @param len The total number of bytes to process.
- *
- * @return The width of the requested characters.
- */
-public int
-bytesWidth(byte buf[], int offset, int len)
-{
- int total_width = 0;
- for (int i = offset; i < len; i++)
- total_width = charWidth((char)buf[i]);
-
- return(total_width);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the widths of the first 256 characters in the font.
- *
- * @return The widths of the first 256 characters in the font.
- */
-public int[]
-getWidths()
-{
- return(new int[256]);
-}
-
-/*************************************************************************/
-
-/**
- * Returns a string representation of this object.
- *
- * @return A string representation of this object.
- */
-public String
-toString()
-{
- return (this.getClass() + "[font=" + font + ",ascent=" + getAscent()
- + ",descent=" + getDescent() + ",height=" + getHeight() + "]");
-}
-
-} // class FontMetrics
-
projects / msp430-gcc.git / blobdiff