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/*******************************************************************************
* Copyright (c) 2004, 2006, 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* QNX Software Systems - adapted for use in CDT
* Andrew Ferguson (Symbian)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.browser.opentype;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.browser.ITypeInfo;
import org.eclipse.cdt.core.browser.IndexTypeInfo;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPBinding;
import org.eclipse.cdt.core.index.IIndex;
import org.eclipse.cdt.core.index.IndexFilter;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.ui.browser.typeinfo.TypeSelectionDialog;
import org.eclipse.cdt.internal.core.browser.util.IndexModelUtil;
/**
* A dialog to select a type from a list of types. The selected type will be
* opened in the editor.
*/
public class OpenTypeDialog extends TypeSelectionDialog {
private static final String DIALOG_SETTINGS= OpenTypeDialog.class.getName();
/**
* Constructs an instance of <code>OpenTypeDialog</code>.
* @param parent the parent shell.
*/
public OpenTypeDialog(Shell parent) {
super(parent);
setTitle(OpenTypeMessages.getString("OpenTypeDialog.title")); //$NON-NLS-1$
setMessage(OpenTypeMessages.getString("OpenTypeDialog.message")); //$NON-NLS-1$
setDialogSettings(DIALOG_SETTINGS);
}
char[] toPrefix(String userFilter) {
userFilter= userFilter.trim().replaceAll("^(\\*)*", ""); //$NON-NLS-1$//$NON-NLS-2$
int asterix= userFilter.indexOf("*"); //$NON-NLS-1$
return (asterix==-1 ? userFilter : userFilter.substring(0, asterix)).toCharArray();
}
/**
* Update the list of elements in AbstractElementListSelectionDialog
*
* Filtering on wildcards and types is done by the superclass - we just provide
* a good starting point
* @param userFilter
*/
public void update(String userFilter) {
char[] prefix = toPrefix(userFilter);
List types = new ArrayList();
if(prefix.length>0)
try {
IIndex index = CCorePlugin.getIndexManager().getIndex(CoreModel.getDefault().getCModel().getCProjects());
try {
index.acquireReadLock();
IBinding[] bindings= index.findBindingsForPrefix(prefix, IndexFilter.ALL, false);
for(int i=0; i<bindings.length; i++) {
IBinding binding = bindings[i];
try {
String[] fqn;
if(binding instanceof ICPPBinding) {
fqn= ((ICPPBinding)binding).getQualifiedName();
} else {
fqn = new String[] {binding.getName()};
}
types.add(new IndexTypeInfo(fqn, IndexModelUtil.getElementType(binding), index));
} catch(DOMException de) {
}
}
} finally {
index.releaseReadLock();
}
} catch(CoreException ce) {
CCorePlugin.log(ce);
} catch(InterruptedException ie) {
CCorePlugin.log(ie);
}
setListElements(types.toArray(new ITypeInfo[types.size()]));
}
protected void setListElements(Object[] elements) {
super.setListElements(elements);
}
/**
* @deprecated
*/
public void setElements(Object[] elements) {
}
protected void handleEmptyList() {
// override super-class behaviour with no-op
}
protected Text createFilterText(Composite parent) {
final Text result = super.createFilterText(parent);
Listener listener = new Listener() {
public void handleEvent(Event e) {
update(result.getText());
}
};
result.addListener(SWT.Modify, listener);
return result;
}
}
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