/*******************************************************************************
* Copyright (c) 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
******************************************************************************/
package org.eclipse.ui.internal.dialogs;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
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;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.WorkbenchMessages;
/**
* Base implementation for a simple working set dialog that doesn't contain
* references to non-editable/non-visible working sets.
*
* @since 3.4
*
*/
public class SimpleWorkingSetSelectionDialog extends AbstractWorkingSetDialog {
private class Filter extends ViewerFilter {
public boolean select(Viewer viewer, Object parentElement,
Object element) {
return isCompatible((IWorkingSet) element);
}
private boolean isCompatible(IWorkingSet set) {
if (set.isAggregateWorkingSet())
return false;
// original JDT code had the catch for self-updating sets that no
// one can explain. There doesn't seem to
// be a good reason to exclude these sets so the clause has been
// removed.
// if (set.isAggregateWorkingSet() || !set.isSelfUpdating())
// return false;
if (!set.isVisible())
return false;
if (!set.isEditable())
return false;
Set workingSetTypeIds = getSupportedWorkingSetIds();
if (workingSetTypeIds == null)
return true;
for (Iterator i = workingSetTypeIds.iterator(); i.hasNext();) {
String workingSetTypeId = (String) i.next();
if (workingSetTypeId.equals(set.getId()))
return true;
}
return false;
}
}
private final static int SIZING_SELECTION_WIDGET_HEIGHT = 200;
private final static int SIZING_SELECTION_WIDGET_WIDTH = 50;
private CheckboxTableViewer viewer;
private IWorkingSet[] initialSelection;
/**
* Create a new instance of this class.
*
* @param shell
* the shell to parent this dialog on
* @param workingSetTypeIds
* the types of working set IDs that will be shown in this dialog
* @param selectedWorkingSets
* the currently selected working sets (if any)
* @param canEdit
* whether or not this dialog will display edit controls
*/
public SimpleWorkingSetSelectionDialog(Shell shell,
String[] workingSetTypeIds, IWorkingSet[] selectedWorkingSets,
boolean canEdit) {
super(shell, workingSetTypeIds, canEdit);
this.initialSelection = selectedWorkingSets;
setTitle(WorkbenchMessages.WorkingSetSelectionDialog_title_multiSelect);
setMessage(WorkbenchMessages.WorkingSetSelectionDialog_message_multiSelect);
}
protected Control createDialogArea(Composite parent) {
initializeDialogUnits(parent);
Composite composite = (Composite) super.createDialogArea(parent);
Composite viewerComposite = new Composite(composite, SWT.NONE);
GridLayout layout = new GridLayout(2, false);
layout.marginHeight = layout.marginWidth = 0;
layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
viewerComposite.setLayout(layout);
GridData data = new GridData(GridData.FILL_BOTH);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH + 300; // fudge? I like
// fudge.
viewerComposite.setLayoutData(data);
viewer = CheckboxTableViewer.newCheckList(viewerComposite, SWT.BORDER);
viewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));
viewer.setLabelProvider(new WorkingSetLabelProvider());
viewer.setContentProvider(new ArrayContentProvider());
viewer.addFilter(new WorkingSetFilter(null));
viewer.setInput(PlatformUI.getWorkbench().getWorkingSetManager()
.getWorkingSets());
viewer.setFilters(new ViewerFilter[] { new Filter() });
viewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
handleSelectionChanged();
}
});
viewer.setCheckedElements(initialSelection);
data = new GridData(GridData.FILL_BOTH);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
viewer.getControl().setLayoutData(data);
addModifyButtons(viewerComposite);
addSelectionButtons(composite);
availableWorkingSetsChanged();
Dialog.applyDialogFont(composite);
return composite;
}
protected void okPressed() {
Object[] checked = viewer.getCheckedElements();
IWorkingSet[] workingSets = new IWorkingSet[checked.length];
System.arraycopy(checked, 0, workingSets, 0, checked.length);
setSelection(workingSets);
super.okPressed();
}
protected List getSelectedWorkingSets() {
ISelection selection = viewer.getSelection();
if (selection instanceof IStructuredSelection) {
return ((IStructuredSelection) selection).toList();
}
return null;
}
protected void availableWorkingSetsChanged() {
viewer.setInput(PlatformUI.getWorkbench().getWorkingSetManager()
.getWorkingSets());
super.availableWorkingSetsChanged();
}
/**
* Called when the selection has changed.
*/
void handleSelectionChanged() {
updateButtonAvailability();
}
protected void selectAllSets() {
viewer.setCheckedElements(PlatformUI.getWorkbench()
.getWorkingSetManager().getWorkingSets());
updateButtonAvailability();
}
protected void deselectAllSets() {
viewer.setCheckedElements(new Object[0]);
updateButtonAvailability();
}
}