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package org.eclipse.mylyn.internal.bugzilla.ui.editor;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
/**
* @author Shawn Minto
*/
public class KeywordsDialog extends Dialog {
private final List<String> selectedKeywords;
private final List<String> validKeywords;
private CheckboxTableViewer keyWordsList;
public KeywordsDialog(Shell shell, String selectedKeywords, java.util.List<String> validKeywords) {
super(shell);
setShellStyle(getShellStyle() | SWT.RESIZE);
StringTokenizer st = new StringTokenizer(selectedKeywords, ",", false);
this.selectedKeywords = new ArrayList<String>();
while (st.hasMoreTokens()) {
String s = st.nextToken().trim();
this.selectedKeywords.add(s);
}
this.validKeywords = validKeywords;
}
@Override
protected Control createDialogArea(Composite parent) {
getShell().setText("Select Keywords");
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout());
GridData gd = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
composite.setLayoutData(gd);
keyWordsList = CheckboxTableViewer.newCheckList(composite, SWT.MULTI | SWT.V_SCROLL | SWT.BORDER);
GridData keyWordsTextData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
keyWordsTextData.heightHint = 175;
keyWordsTextData.widthHint = 160;
keyWordsList.getTable().setLayoutData(keyWordsTextData);
if (validKeywords != null) {
keyWordsList.setContentProvider(new ITreeContentProvider() {
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof Collection) {
return ((Collection<?>) parentElement).toArray();
}
return null;
}
public Object getParent(Object element) {
// TODO Auto-generated method stub
return null;
}
public boolean hasChildren(Object element) {
// TODO Auto-generated method stub
return false;
}
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
public void dispose() {
// TODO Auto-generated method stub
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
// TODO Auto-generated method stub
}
});
Set<String> invalidKeywords = new HashSet<String>();
keyWordsList.setInput(validKeywords);
for (String keyword : selectedKeywords) {
if (!keyWordsList.setChecked(keyword, true)) {
invalidKeywords.add(keyword);
}
}
selectedKeywords.removeAll(invalidKeywords);
}
keyWordsList.addCheckStateListener(new KeywordListener());
parent.pack();
return composite;
}
protected class KeywordListener implements ICheckStateListener {
public void checkStateChanged(CheckStateChangedEvent event) {
if (event.getChecked()) {
selectedKeywords.add((String) event.getElement());
} else {
selectedKeywords.remove(event.getElement());
}
}
}
public List<String> getSelectedKeywords() {
return selectedKeywords;
}
public String getSelectedKeywordsString() {
StringBuffer keywords = new StringBuffer();
for (String sel : selectedKeywords) {
keywords.append(sel);
keywords.append(",");
}
String keywordsString = keywords.toString();
if (keywordsString.endsWith(",")) {
keywordsString = keywordsString.substring(0, keywordsString.length() - 1);
}
return keywordsString;
}
}
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