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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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;
-
- /**
- * Base class for font classes
- */
- public abstract class Typeface implements FontMetrics {
-
- /**
- * Used to identify whether a font has been used (a character map operation is used as
- * the trigger). This could just as well be a boolean but is a long out of statistical interest.
- */
- private long charMapOps = 0;
-
- /**
- * Get the encoding of the font.
- * @return the encoding
- */
- public abstract String getEncodingName();
-
- /**
- * Map a Unicode character to a code point in the font.
- * @param c character to map
- * @return the mapped character
- */
- public abstract char mapChar(char c);
-
- /**
- * Used for keeping track of character mapping operations in order to determine if a font
- * was used at all or not.
- */
- protected void notifyMapOperation() {
- this.charMapOps++;
- }
-
- /**
- * Indicates whether this font had to do any character mapping operations. If that was
- * not the case, it's an indication that the font has never actually been used.
- * @return true if the font had to do any character mapping operations
- */
- public boolean hadMappingOperations() {
- return (this.charMapOps > 0);
- }
-
- /**
- * Determines whether this font contains a particular character/glyph.
- * @param c character to check
- * @return True if the character is supported, Falso otherwise
- */
- public abstract boolean hasChar(char c);
-
- /**
- * Determines whether the font is a multibyte font.
- * @return True if it is multibyte
- */
- public boolean isMultiByte() {
- return false;
- }
-
- /** {@inheritDoc} */
- public int getMaxAscent(int size) {
- return getAscender(size);
- }
-
- }
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