X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/MultiVariableGuess.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/MultiVariableGuess.java
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index 0000000..772e4b3
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/MultiVariableGuess.java
@@ -0,0 +1,301 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.text.template.contentassist;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.DocumentEvent;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.contentassist.ICompletionProposal;
+import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+
+/**
+ * Global state for templates. Selecting a proposal for the master template
+ * variable will cause the value (and the proposals) for the slave variables to
+ * change.
+ * 
+ * @see MultiVariable
+ */
+public class MultiVariableGuess {
+
+	/**
+	 * Implementation of the <code>ICompletionProposal</code> interface and
+	 * extension.
+	 */
+	class Proposal implements ICompletionProposal,
+			ICompletionProposalExtension2 {
+
+		/** The string to be displayed in the completion proposal popup */
+		private String fDisplayString;
+
+		/** The replacement string */
+		String fReplacementString;
+
+		/** The replacement offset */
+		private int fReplacementOffset;
+
+		/** The replacement length */
+		private int fReplacementLength;
+
+		/** The cursor position after this proposal has been applied */
+		private int fCursorPosition;
+
+		/** The image to be displayed in the completion proposal popup */
+		private Image fImage;
+
+		/** The context information of this proposal */
+		private IContextInformation fContextInformation;
+
+		/** The additional info of this proposal */
+		private String fAdditionalProposalInfo;
+
+		/**
+		 * Creates a new completion proposal based on the provided information.
+		 * The replacement string is considered being the display string too.
+		 * All remaining fields are set to <code>null</code>.
+		 * 
+		 * @param replacementString
+		 *            the actual string to be inserted into the document
+		 * @param replacementOffset
+		 *            the offset of the text to be replaced
+		 * @param replacementLength
+		 *            the length of the text to be replaced
+		 * @param cursorPosition
+		 *            the position of the cursor following the insert relative
+		 *            to replacementOffset
+		 */
+		public Proposal(String replacementString, int replacementOffset,
+				int replacementLength, int cursorPosition) {
+			this(replacementString, replacementOffset, replacementLength,
+					cursorPosition, null, null, null, null);
+		}
+
+		/**
+		 * Creates a new completion proposal. All fields are initialized based
+		 * on the provided information.
+		 * 
+		 * @param replacementString
+		 *            the actual string to be inserted into the document
+		 * @param replacementOffset
+		 *            the offset of the text to be replaced
+		 * @param replacementLength
+		 *            the length of the text to be replaced
+		 * @param cursorPosition
+		 *            the position of the cursor following the insert relative
+		 *            to replacementOffset
+		 * @param image
+		 *            the image to display for this proposal
+		 * @param displayString
+		 *            the string to be displayed for the proposal
+		 * @param contextInformation
+		 *            the context information associated with this proposal
+		 * @param additionalProposalInfo
+		 *            the additional information associated with this proposal
+		 */
+		public Proposal(String replacementString, int replacementOffset,
+				int replacementLength, int cursorPosition, Image image,
+				String displayString, IContextInformation contextInformation,
+				String additionalProposalInfo) {
+			Assert.isNotNull(replacementString);
+			Assert.isTrue(replacementOffset >= 0);
+			Assert.isTrue(replacementLength >= 0);
+			Assert.isTrue(cursorPosition >= 0);
+
+			fReplacementString = replacementString;
+			fReplacementOffset = replacementOffset;
+			fReplacementLength = replacementLength;
+			fCursorPosition = cursorPosition;
+			fImage = image;
+			fDisplayString = displayString;
+			fContextInformation = contextInformation;
+			fAdditionalProposalInfo = additionalProposalInfo;
+		}
+
+		/*
+		 * @see ICompletionProposal#apply(IDocument)
+		 */
+		public void apply(IDocument document) {
+			try {
+				document.replace(fReplacementOffset, fReplacementLength,
+						fReplacementString);
+			} catch (BadLocationException x) {
+				// ignore
+			}
+		}
+
+		/*
+		 * @see ICompletionProposal#getSelection(IDocument)
+		 */
+		public Point getSelection(IDocument document) {
+			return new Point(fReplacementOffset + fCursorPosition, 0);
+		}
+
+		/*
+		 * @see ICompletionProposal#getContextInformation()
+		 */
+		public IContextInformation getContextInformation() {
+			return fContextInformation;
+		}
+
+		/*
+		 * @see ICompletionProposal#getImage()
+		 */
+		public Image getImage() {
+			return fImage;
+		}
+
+		/*
+		 * @see ICompletionProposal#getDisplayString()
+		 */
+		public String getDisplayString() {
+			if (fDisplayString != null)
+				return fDisplayString;
+			return fReplacementString;
+		}
+
+		/*
+		 * @see ICompletionProposal#getAdditionalProposalInfo()
+		 */
+		public String getAdditionalProposalInfo() {
+			return fAdditionalProposalInfo;
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#apply(org.eclipse.jface.text.ITextViewer,
+		 *      char, int, int)
+		 */
+		public void apply(ITextViewer viewer, char trigger, int stateMask,
+				int offset) {
+			apply(viewer.getDocument());
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#selected(org.eclipse.jface.text.ITextViewer,
+		 *      boolean)
+		 */
+		public void selected(ITextViewer viewer, boolean smartToggle) {
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#unselected(org.eclipse.jface.text.ITextViewer)
+		 */
+		public void unselected(ITextViewer viewer) {
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#validate(org.eclipse.jface.text.IDocument,
+		 *      int, org.eclipse.jface.text.DocumentEvent)
+		 */
+		public boolean validate(IDocument document, int offset,
+				DocumentEvent event) {
+			try {
+				String content = document.get(fReplacementOffset,
+						fReplacementLength);
+				if (content.startsWith(fReplacementString))
+					return true;
+			} catch (BadLocationException e) {
+				// ignore concurrently modified document
+			}
+			return false;
+		}
+	}
+
+	private final List fSlaves = new ArrayList();
+
+	private MultiVariable fMaster;
+
+	/**
+	 * @param mv
+	 */
+	public MultiVariableGuess(MultiVariable mv) {
+		fMaster = mv;
+	}
+
+	/**
+	 * @param variable
+	 * @return
+	 */
+	public ICompletionProposal[] getProposals(MultiVariable variable,
+			int offset, int length) {
+		if (variable.equals(fMaster)) {
+			String[] choices = variable.getValues();
+
+			ICompletionProposal[] ret = new ICompletionProposal[choices.length];
+			for (int i = 0; i < ret.length; i++) {
+				ret[i] = new Proposal(choices[i], offset, length, offset
+						+ length) {
+
+					/*
+					 * @see org.eclipse.jface.text.link.MultiVariableGuess.Proposal#apply(org.eclipse.jface.text.IDocument)
+					 */
+					public void apply(IDocument document) {
+						super.apply(document);
+
+						try {
+							Object old = fMaster.getSet();
+							fMaster.setSet(fReplacementString);
+							if (!fReplacementString.equals(old)) {
+								for (Iterator it = fSlaves.iterator(); it
+										.hasNext();) {
+									VariablePosition pos = (VariablePosition) it
+											.next();
+									String[] values = pos.getVariable()
+											.getValues(fReplacementString);
+									if (values != null)
+										document.replace(pos.getOffset(), pos
+												.getLength(), values[0]);
+								}
+							}
+						} catch (BadLocationException e) {
+							// ignore and continue
+						}
+
+					}
+				};
+			}
+
+			return ret;
+
+		} else {
+
+			String[] choices = variable.getValues(fMaster.getSet());
+
+			if (choices == null || choices.length < 2)
+				return null;
+
+			ICompletionProposal[] ret = new ICompletionProposal[choices.length];
+			for (int i = 0; i < ret.length; i++) {
+				ret[i] = new Proposal(choices[i], offset, length, offset
+						+ length);
+			}
+
+			return ret;
+		}
+	}
+
+	/**
+	 * @param position
+	 */
+	public void addSlave(VariablePosition position) {
+		fSlaves.add(position);
+	}
+
+}