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   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 import org.eclipse.jface.text.IDocument;
  15 import org.eclipse.jface.text.IRegion;
  16 import org.eclipse.jface.text.reconciler.DirtyRegion;
  17 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
  18 import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
  19
  20 /**
  21  * A reconciling strategy consisting of a sequence of internal reconciling
  22  * strategies. By default, all requests are passed on to the contained
  23  * strategies.
  24  *
  25  * @since 3.0
  26  */
  27 public class CompositeReconcilingStrategy implements IReconcilingStrategy,
  28                 IReconcilingStrategyExtension {
  29
  30         /** The list of internal reconciling strategies. */
  31         private IReconcilingStrategy[] fStrategies;
  32
  33         /**
  34          * Creates a new, empty composite reconciling strategy.
  35          */
  36         public CompositeReconcilingStrategy() {
  37         }
  38
  39         /**
  40          * Sets the reconciling strategies for this composite strategy.
  41          *
  42          * @param strategies
  43          *            the strategies to be set or <code>null</code>
  44          */
  45         public void setReconcilingStrategies(IReconcilingStrategy[] strategies) {
  46                 fStrategies = strategies;
  47         }
  48
  49         /**
  50          * Returns the previously set stratgies or <code>null</code>.
  51          *
  52          * @return the contained strategies or <code>null</code>
  53          */
  54         public IReconcilingStrategy[] getReconcilingStrategies() {
  55                 return fStrategies;
  56         }
  57
  58         /*
  59          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
  60          */
  61         public void setDocument(IDocument document) {
  62                 if (fStrategies == null)
  63                         return;
  64
  65                 for (int i = 0; i < fStrategies.length; i++)
  66                         fStrategies[i].setDocument(document);
  67         }
  68
  69         /*
  70          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion,
  71          *      org.eclipse.jface.text.IRegion)
  72          */
  73         public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
  74                 if (fStrategies == null)
  75                         return;
  76
  77                 for (int i = 0; i < fStrategies.length; i++)
  78                         fStrategies[i].reconcile(dirtyRegion, subRegion);
  79         }
  80
  81         /*
  82          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
  83          */
  84         public void reconcile(IRegion partition) {
  85                 if (fStrategies == null)
  86                         return;
  87
  88                 for (int i = 0; i < fStrategies.length; i++)
  89                         fStrategies[i].reconcile(partition);
  90         }
  91
  92         /*
  93          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
  94          */
  95         public void setProgressMonitor(IProgressMonitor monitor) {
  96                 if (fStrategies == null)
  97                         return;
  98
  99                 for (int i = 0; i < fStrategies.length; i++) {
 100                         if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
 101                                 IReconcilingStrategyExtension extension = (IReconcilingStrategyExtension) fStrategies[i];
 102                                 extension.setProgressMonitor(monitor);
 103                         }
 104                 }
 105         }
 106
 107         /*
 108          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
 109          */
 110         public void initialReconcile() {
 111                 if (fStrategies == null)
 112                         return;
 113
 114                 for (int i = 0; i < fStrategies.length; i++) {
 115                         if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
 116                                 IReconcilingStrategyExtension extension = (IReconcilingStrategyExtension) fStrategies[i];
 117                                 extension.initialReconcile();
 118                         }
 119                 }
 120         }
 121 }