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[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / ui / text / CompositeReconcilingStrategy.java
1 /*******************************************************************************
2  * Copyright (c) 2000, 2003 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials 
4  * are made available under the terms of the Common Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/cpl-v10.html
7  * 
8  * Contributors:
9  *     IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package net.sourceforge.phpdt.internal.ui.text;
12
13 import org.eclipse.core.runtime.IProgressMonitor;
14
15 import org.eclipse.jface.text.IDocument;
16 import org.eclipse.jface.text.IRegion;
17 import org.eclipse.jface.text.reconciler.DirtyRegion;
18 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
19 import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
20
21 /**
22  * A reconciling strategy consisting of a sequence of internal reconciling strategies.
23  * By default, all requests are passed on to the contained strategies.
24  * 
25  * @since 3.0
26  */
27 public class CompositeReconcilingStrategy  implements IReconcilingStrategy, IReconcilingStrategyExtension {
28         
29         /** The list of internal reconciling strategies. */
30         private IReconcilingStrategy[] fStrategies;
31         
32         /**
33          * Creates a new, empty composite reconciling strategy.
34          */
35         public CompositeReconcilingStrategy() {
36         }
37         
38         /**
39          * Sets the reconciling strategies for this composite strategy.
40          * 
41          * @param strategies the strategies to be set or <code>null</code>
42          */
43         public void setReconcilingStrategies(IReconcilingStrategy[] strategies) {
44                 fStrategies= strategies;
45         }
46         
47         /**
48          * Returns the previously set stratgies or <code>null</code>.
49          * 
50          * @return the contained strategies or <code>null</code>
51          */
52         public IReconcilingStrategy[] getReconcilingStrategies() {
53                 return fStrategies;
54         }
55
56         /*
57          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
58          */
59         public void setDocument(IDocument document) {
60                 if (fStrategies == null)
61                         return;
62                 
63                 for (int i= 0; i < fStrategies.length; i++)
64                         fStrategies[i].setDocument(document);
65         }
66
67         /*
68          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion, org.eclipse.jface.text.IRegion)
69          */
70         public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
71                 if (fStrategies == null)
72                         return;
73                 
74                 for (int i= 0; i < fStrategies.length; i++)
75                         fStrategies[i].reconcile(dirtyRegion, subRegion);
76         }
77
78         /*
79          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
80          */
81         public void reconcile(IRegion partition) {
82                 if (fStrategies == null)
83                         return;
84                 
85                 for (int i= 0; i < fStrategies.length; i++)
86                         fStrategies[i].reconcile(partition);
87         }
88
89         /*
90          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
91          */
92         public void setProgressMonitor(IProgressMonitor monitor) {
93                 if (fStrategies == null)
94                         return;
95                 
96                 for (int i=0; i < fStrategies.length; i++) {
97                         if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
98                                 IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
99                                 extension.setProgressMonitor(monitor);
100                         }
101                 }
102         }
103
104         /*
105          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
106          */
107         public void initialReconcile() {
108                 if (fStrategies == null)
109                         return;
110                 
111                 for (int i=0; i < fStrategies.length; i++) {
112                         if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
113                                 IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
114                                 extension.initialReconcile();
115                         }
116                 }
117         }
118 }