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Java > Open Source Codes > org > lobobrowser > html > domimpl > HTMLFontSizeChangeElementImpl


1 /*
2     GNU LESSER GENERAL PUBLIC LICENSE
3     Copyright (C) 2006 The Lobo Project
4
5     This library is free software; you can redistribute it and/or
6     modify it under the terms of the GNU Lesser General Public
7     License as published by the Free Software Foundation; either
8     version 2.1 of the License, or (at your option) any later version.
9
10     This library is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13     Lesser General Public License for more details.
14
15     You should have received a copy of the GNU Lesser General Public
16     License along with this library; if not, write to the Free Software
17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19     Contact info: xamjadmin@users.sourceforge.net
20 */
21 package org.lobobrowser.html.domimpl;
22
23 import org.lobobrowser.html.style.*;
24
25 /**
26  * This element is used for SMALL and BIG.
27  */
28 public class HTMLFontSizeChangeElementImpl extends HTMLAbstractUIElement {
29     private final int fontChange;
30     
31     public HTMLFontSizeChangeElementImpl(String JavaDoc name, int fontChange) {
32         super(name);
33         this.fontChange = fontChange;
34     }
35
36     protected RenderState createRenderState(RenderState prevRenderState) {
37         int fontSize;
38         if(prevRenderState == null) {
39             fontSize = 13;
40         }
41         else {
42             fontSize = prevRenderState.getFont().getSize();
43             fontSize += (this.fontChange * 2);
44             if(fontSize < 1) {
45                 fontSize = 1;
46             }
47         }
48         prevRenderState = new FontSizeRenderState(prevRenderState, fontSize);
49         return super.createRenderState(prevRenderState);
50     }
51 }
52
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