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Java > Open Source Codes > org > openlaszlo > iv > flash > cache > FontCache


1 /*
2  * $Id: FontCache.java,v 1.3 2002/03/22 04:55:07 skavish Exp $
3  *
4  * ==========================================================================
5  *
6  * The JGenerator Software License, Version 1.0
7  *
8  * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if
22  * any, must include the following acknowlegement:
23  * "This product includes software developed by Dmitry Skavish
24  * (skavish@usa.net, http://www.flashgap.com/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The name "The JGenerator" must not be used to endorse or promote
29  * products derived from this software without prior written permission.
30  * For written permission, please contact skavish@usa.net.
31  *
32  * 5. Products derived from this software may not be called "The JGenerator"
33  * nor may "The JGenerator" appear in their names without prior written
34  * permission of Dmitry Skavish.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39  * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
40  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47  * SUCH DAMAGE.
48  *
49  */
50
51 package org.openlaszlo.iv.flash.cache;
52
53 import org.openlaszlo.iv.flash.api.text.*;
54 import org.openlaszlo.iv.flash.util.*;
55 import java.util.*;
56
57 public class FontCache extends GenericCache {
58
59     private static FontCache instance = new FontCache();
60
61     private FontCache() {
62     }
63
64     public static FontCache getInstance() {
65         return instance;
66     }
67
68     public static CacheSettings getSettings() {
69         return instance.getMySettings();
70     }
71
72     /**
73      * Gets cached font.
74      *
75      * @param fontName font key
76      * @return found font
77      */
78     public static Font getFont( String JavaDoc fontName ) {
79         CacheItem item = instance.getItem( fontName );
80         if( item == null ) return null;
81         return (Font) item.getObject();
82      }
83
84     /**
85      * Adds font to cache.
86      *
87      * @param fontName font key
88      * @param font font to add
89      */
90     public static void addFont( String JavaDoc fontName, Font font ) {
91         long now = System.currentTimeMillis();
92         long expire = now + Integer.MAX_VALUE*1000L;
93         int size = font.getFontSize();
94         CacheItem item = new CacheItem( fontName, font, size, now, expire );
95         font.cached = instance.addItem( item );
96     }
97
98     /**
99      * Removes font from cache.
100      *
101      * @param fontName font key
102      */
103     public static void removeFont( String JavaDoc fontName ) {
104         CacheItem item = instance.getItem( fontName );
105         if( item == null ) return;
106         Font font = (Font) item.getObject();
107         font.cached = false;
108         instance.removeItem( item );
109     }
110
111 }
112
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