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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fonts;
import java.util.Map;
/**
* Main interface for access to font metrics.
*/
public interface FontMetrics {
/**
* Returns the font name.
* @return the font name
*/
String getFontName();
/**
* Returns the type of the font.
* @return the font type
*/
FontType getFontType();
/**
* Returns the ascent of the font described by this
* FontMetrics object.
* @param size font size
* @return ascent in milliponts
*/
int getAscender(int size);
/**
* Returns the size of a capital letter measured from the font's baseline.
* @param size font size
* @return height of capital characters
*/
int getCapHeight(int size);
/**
* Returns the descent of the font described by this
* FontMetrics object.
* @param size font size
* @return descent in milliponts
*/
int getDescender(int size);
/**
* Determines the typical font height of this
* FontMetrics object
* @param size font size
* @return font height in millipoints
*/
int getXHeight(int size);
/**
* Return the width (in 1/1000ths of point size) of the character at
* code point i.
* @param i code point index
* @param size font size
* @return the width of the character
*/
int getWidth(int i, int size);
/**
* Return the array of widths.
* <p>
* This is used to get an array for inserting in an output format.
* It should not be used for lookup.
* @return an array of widths
*/
int[] getWidths();
/**
* Indicates if the font has kering information.
* @return True, if kerning is available.
*/
boolean hasKerningInfo();
/**
* Returns the kerning map for the font.
* @return the kerning map
*/
Map getKerningInfo();
}
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