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Hooked up the C Help system to the new content assist.

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This commit is contained in:
Doug Schaefer 2005-04-25 18:35:52 +00:00
parent bc812babe8
commit 4b511c67ae
2 changed files with 108 additions and 0 deletions
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4
core/org.eclipse.cdt.ui/plugin.xml
View file

@ -1365,6 +1365,10 @@
class="org.eclipse.cdt.internal.ui.text.contentassist.SearchCompletionContributor"
id="Search"
priority="3"/>
<contributor
class="org.eclipse.cdt.internal.ui.text.contentassist.HelpCompletionContributor"
id="Help"
priority="99"/>
</extension>
</plugin>

104
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/contentassist/HelpCompletionContributor.java Normal file
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@ -0,0 +1,104 @@
/**********************************************************************
* Copyright (c) 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
**********************************************************************/
package org.eclipse.cdt.internal.ui.text.contentassist;
import java.util.List;
import org.eclipse.cdt.core.dom.ast.ASTCompletionNode;
import org.eclipse.cdt.core.dom.ast.IASTFieldReference;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.core.model.IWorkingCopy;
import org.eclipse.cdt.internal.ui.CHelpProviderManager;
import org.eclipse.cdt.internal.ui.CPluginImages;
import org.eclipse.cdt.internal.ui.viewsupport.CElementImageProvider;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.ui.IFunctionSummary;
import org.eclipse.cdt.ui.text.ICHelpInvocationContext;
import org.eclipse.cdt.ui.text.contentassist.ICompletionContributor;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.contentassist.ContextInformation;
import org.eclipse.swt.graphics.Image;
public class HelpCompletionContributor implements ICompletionContributor {
public void contributeCompletionProposals(ITextViewer viewer, int offset,
IWorkingCopy workingCopy, ASTCompletionNode completionNode,
List proposals)
{
final IWorkingCopy fWorkingCopy = workingCopy;
if (completionNode != null) {
// Find matching functions
ICHelpInvocationContext context = new ICHelpInvocationContext() {
public IProject getProject() {
return fWorkingCopy.getCProject().getProject();
}
public ITranslationUnit getTranslationUnit() {
return fWorkingCopy.getTranslationUnit();
}
};
IASTName[] names = completionNode.getNames();
for (int i = 0; i < names.length; ++i) {
IASTName name = names[i];
if (name.getTranslationUnit() == null)
// Not connected
continue;
// ignore if this is a member access
if (name.getParent() instanceof IASTFieldReference)
continue;
String prefix = new String(name.toCharArray());
IFunctionSummary[] summaries = CHelpProviderManager.getDefault().getMatchingFunctions(context, prefix);
if (summaries == null )
continue;
int repOffset = offset - prefix.length();
int repLength = prefix.length();
Image image = CUIPlugin.getImageDescriptorRegistry().get(CElementImageProvider.getFunctionImageDescriptor());
for (int j = 0; j < summaries.length; j++) {
IFunctionSummary summary = summaries[j];
String fname = summary.getName() + "()"; //$NON-NLS-1$
String fdesc = summary.getDescription();
IFunctionSummary.IFunctionPrototypeSummary fproto = summary.getPrototype();
String fargs = fproto.getArguments();
CCompletionProposal proposal;
proposal = new CCompletionProposal(fname,
repOffset,
repLength,
image,
fproto.getPrototypeString(true),
2,
viewer);
if (fdesc != null) {
proposal.setAdditionalProposalInfo(fdesc);
}
if (fargs != null && fargs.length() > 0) {
proposal.setContextInformation(new ContextInformation(fname, fargs));
// set the cursor before the closing bracket
proposal.setCursorPosition(fname.length() - 1);
}
proposals.add(proposal);
}
}
}
}
}