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package org.eclipse.cdt.internal.corext.template.c;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import org.eclipse.cdt.internal.corext.template.ContextType;
import org.eclipse.cdt.internal.corext.template.ITemplateEditor;
import org.eclipse.cdt.internal.corext.template.Template;
import org.eclipse.cdt.internal.corext.template.TemplateBuffer;
import org.eclipse.cdt.internal.corext.template.TemplateTranslator;
import org.eclipse.cdt.internal.corext.textmanipulation.TextBuffer;
import org.eclipse.cdt.internal.corext.textmanipulation.TextUtil;
import org.eclipse.cdt.internal.ui.text.CSourceViewerConfiguration;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.core.runtime.CoreException;
/**
* A context for c/c++
*/
public class CContext extends CompilationUnitContext {
/**
* Creates a javadoc template context.
*
* @param type the context type.
* @param string the document string.
* @param completionPosition the completion position within the document.
* @param unit the compilation unit (may be <code>null</code>).
*/
public CContext(ContextType type, String string, int completionPosition,
ICompilationUnit compilationUnit)
{
super(type, string, completionPosition, compilationUnit);
}
/*
* @see DocumentTemplateContext#getStart()
*/
public int getStart() {
String string= getString();
int start= getCompletionPosition();
while ((start != 0) && Character.isUnicodeIdentifierPart(string.charAt(start - 1)))
start--;
if ((start != 0) && Character.isUnicodeIdentifierStart(string.charAt(start - 1)))
start--;
return start;
}
/**
* Returns the indentation level at the position of code completion.
*/
public int getIndentationLevel() {
String string= getString();
int start= getStart();
try {
TextBuffer textBuffer= TextBuffer.create(string);
String lineContent= textBuffer.getLineContentOfOffset(start);
return TextUtil.getIndent(lineContent, CUIPlugin.getDefault().getPreferenceStore().getInt(CSourceViewerConfiguration.PREFERENCE_TAB_WIDTH));
} catch (CoreException e) {
return 0;
}
}
/*
* @see TemplateContext#canEvaluate(Template templates)
*/
public boolean canEvaluate(Template template) {
return template.matches(getKey(), getContextType().getName());
}
/*
* @see TemplateContext#evaluate(Template)
*/
public TemplateBuffer evaluate(Template template) throws CoreException {
if (!canEvaluate(template))
return null;
TemplateTranslator translator= new TemplateTranslator();
TemplateBuffer buffer= translator.translate(template.getPattern());
getContextType().edit(buffer, this);
ITemplateEditor formatter= new CFormatter();
formatter.edit(buffer, this);
return buffer;
}
}
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