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Java > Open Source Codes > org > eclipse > birt > chart > examples > api > processor > StyleProcessor


1 /*******************************************************************************
2  * Copyright (c) 2004 Actuate Corporation.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * Actuate Corporation - initial API and implementation
10  *******************************************************************************/
11
12 package org.eclipse.birt.chart.examples.api.processor;
13
14 import java.util.Iterator JavaDoc;
15
16 import org.eclipse.birt.chart.model.Chart;
17 import org.eclipse.birt.chart.model.attribute.ColorDefinition;
18 import org.eclipse.birt.chart.model.attribute.FontDefinition;
19 import org.eclipse.birt.chart.model.attribute.HorizontalAlignment;
20 import org.eclipse.birt.chart.model.attribute.Image;
21 import org.eclipse.birt.chart.model.attribute.Insets;
22 import org.eclipse.birt.chart.model.attribute.Style;
23 import org.eclipse.birt.chart.model.attribute.StyleMap;
24 import org.eclipse.birt.chart.model.attribute.StyledComponent;
25 import org.eclipse.birt.chart.model.attribute.TextAlignment;
26 import org.eclipse.birt.chart.model.attribute.VerticalAlignment;
27 import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionImpl;
28 import org.eclipse.birt.chart.model.attribute.impl.FontDefinitionImpl;
29 import org.eclipse.birt.chart.model.attribute.impl.InsetsImpl;
30 import org.eclipse.birt.chart.model.attribute.impl.TextAlignmentImpl;
31 import org.eclipse.birt.chart.style.IStyle;
32 import org.eclipse.birt.chart.style.IStyleProcessor;
33 import org.eclipse.birt.chart.style.SimpleStyle;
34 import org.eclipse.emf.ecore.util.EcoreUtil;
35
36 /**
37  * SimpleProcessor
38  */
39 public final class StyleProcessor implements IStyleProcessor
40 {
41
42     private static final SimpleStyle sstyle;
43
44     private static StyleProcessor instance;
45
46     static
47     {
48         TextAlignment ta = TextAlignmentImpl.create( );
49         ta.setHorizontalAlignment( HorizontalAlignment.RIGHT_LITERAL );
50         ta.setVerticalAlignment( VerticalAlignment.BOTTOM_LITERAL );
51         FontDefinition font = FontDefinitionImpl.create( "BookAntique", //$NON-NLS-1$
52 14, true, true, true, true, true, 2.0, ta );
53
54         sstyle = new SimpleStyle( font,
55                 ColorDefinitionImpl.PINK( ),
56                 ColorDefinitionImpl.CREAM( ),
57                 null,
58                 InsetsImpl.create( 1.0, 1.0, 1.0, 1.0 ) );
59     }
60
61     /**
62      * @return
63      */
64     synchronized public static StyleProcessor instance( )
65     {
66         if ( instance == null )
67         {
68             instance = new StyleProcessor( );
69         }
70
71         return instance;
72     }
73
74     /**
75      * The constructor.
76      */
77     private StyleProcessor( )
78     {
79         super( );
80     }
81
82     /*
83      * (non-Javadoc)
84      *
85      * @see org.eclipse.birt.chart.style.IStyleProcessor#getStyle(org.eclipse.birt.chart.model.attribute.StyledComponent)
86      */
87     public IStyle getStyle( Chart model, StyledComponent name )
88     {
89         if ( model != null && model.getStyles( ).size( ) > 0 )
90         {
91             for ( Iterator JavaDoc itr = model.getStyles( ).iterator( ); itr.hasNext( ); )
92             {
93                 StyleMap sm = (StyleMap) itr.next( );
94
95                 if ( sm.getComponentName( ).equals( name ) )
96                 {
97                     Style style = sm.getStyle( );
98
99                     SimpleStyle rt = new SimpleStyle( sstyle );
100
101                     if ( style.getFont( ) != null )
102                     {
103                         rt.setFont( (FontDefinition) EcoreUtil.copy( style.getFont( ) ) );
104                     }
105                     if ( style.getColor( ) != null )
106                     {
107                         rt.setColor( (ColorDefinition) EcoreUtil.copy( style.getColor( ) ) );
108                     }
109                     if ( style.getBackgroundColor( ) != null )
110                     {
111                         rt.setBackgroundColor( (ColorDefinition) EcoreUtil.copy( style.getBackgroundColor( ) ) );
112                     }
113                     if ( style.getBackgroundImage( ) != null )
114                     {
115                         rt.setBackgroundImage( (Image) EcoreUtil.copy( style.getBackgroundImage( ) ) );
116                     }
117                     if ( style.getPadding( ) != null )
118                     {
119                         rt.setPadding( (Insets) EcoreUtil.copy( style.getPadding( ) ) );
120                     }
121
122                     return rt;
123                 }
124             }
125         }
126
127         // Always return the default value.
128 return sstyle.copy( );
129     }
130 }
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