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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.skynet.widgets;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osee.framework.jdk.core.type.OseeArgumentException;
import org.eclipse.osee.framework.jdk.core.util.Collections;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.framework.logging.OseeLevel;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.ui.skynet.internal.Activator;
import org.eclipse.osee.framework.ui.skynet.widgets.dialog.FilteredCheckboxTreeDialog;
import org.eclipse.osee.framework.ui.swt.ALayout;
import org.eclipse.osee.framework.ui.swt.Displays;
import org.eclipse.osee.framework.ui.swt.Widgets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
/**
* @author Roberto E. Escobar
*/
public abstract class XSelectFromDialog<T> extends XText {
private final List<T> selected = new ArrayList<T>();
private final List<T> input = new ArrayList<T>();
private int minSelectionRequired, maxSelectionRequired = 1;
private Button selectionButton;
public XSelectFromDialog(String displayLabel) {
super(displayLabel);
setToolTip("Click the button on the left to change the current selection.");
}
public void setRequiredSelection(int minSelectionRequired, int maxSelectionRequired) throws OseeArgumentException {
if (minSelectionRequired < 0) {
throw new OseeArgumentException("Min Number of Selection must be greater than or equal to 0");
}
if (maxSelectionRequired < 1) {
throw new OseeArgumentException("Max Number of Selection must be at least 1");
}
if (maxSelectionRequired < minSelectionRequired) {
throw new OseeArgumentException("Invalid required number of selections [%s] < [%s]", maxSelectionRequired,
minSelectionRequired);
}
this.minSelectionRequired = minSelectionRequired;
this.maxSelectionRequired = maxSelectionRequired;
}
@Override
protected int getTextStyle() {
return SWT.READ_ONLY | SWT.BORDER | SWT.MULTI | SWT.WRAP | SWT.H_SCROLL | SWT.V_SCROLL;
}
@Override
public void setToolTip(String toolTip) {
if (Strings.isValid(toolTip)) {
super.setToolTip(toolTip);
}
}
@Override
public Object getData() {
return getSelected();
}
@Override
public void setEditable(boolean editable) {
super.setEditable(editable);
if (Widgets.isAccessible(selectionButton)) {
selectionButton.setEnabled(editable);
}
}
@Override
public void createControls(final Composite parent, int horizontalSpan, boolean fillText) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(ALayout.getZeroMarginLayout(3, false));
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true));
Label label = getLabelWidget();
if (label != null) {
label.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
}
setVerticalLabel(true);
super.createControls(composite, horizontalSpan, fillText);
getStyledText().setEditable(false);
getStyledText().setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL));
selectionButton = new Button(composite, SWT.PUSH);
selectionButton.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
selectionButton.setText("Set...");
selectionButton.setEnabled(isEditable());
selectionButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
if (openSelectionDialog()) {
notifyXModifiedListeners();
}
}
});
addToolTip(composite, getToolTip());
getStyledText().setBackground(Displays.getSystemColor(SWT.COLOR_WIDGET_LIGHT_SHADOW));
refresh();
}
private void addToolTip(Control control, String toolTipText) {
if (Strings.isValid(toolTipText)) {
control.setToolTipText(toolTipText);
if (control instanceof Composite) {
for (Control child : ((Composite) control).getChildren()) {
child.setToolTipText(toolTipText);
}
}
}
}
public void setSelectableItems(Collection<T> input) {
this.input.clear();
this.input.addAll(input);
}
public List<T> getSelectableItems() {
return new ArrayList<T>(input);
}
public void setSelected(Collection<T> input) {
this.selected.clear();
this.selected.addAll(input);
setText(Collections.toString("\n", selected));
}
public List<T> getSelected() {
return new ArrayList<T>(selected);
}
public abstract FilteredCheckboxTreeDialog createDialog();
@SuppressWarnings("unchecked")
protected boolean openSelectionDialog() {
boolean selectedChanged = false;
if (getSelectableItems().isEmpty()) {
MessageDialog.openInformation(Displays.getActiveShell(), getLabel(),
"Could not find items available to select from.");
} else {
try {
FilteredCheckboxTreeDialog dialog = createDialog();
Set<T> choices = new HashSet<T>(selected);
choices.addAll(input);
dialog.setInput(choices);
dialog.setInitialSelections(getSelected());
int result = dialog.open();
if (result == 0) {
List<T> dialogSelections = new ArrayList<T>();
for (Object obj : dialog.getResult()) {
dialogSelections.add((T) obj);
}
// boolean wasDifference = !Collections.setComplement(selected, dialogSelections).isEmpty();
// wasDifference &= !Collections.setComplement(dialogSelections, selected).isEmpty();
// if (wasDifference) {
setSelected(dialogSelections);
selectedChanged = true;
// }
}
} catch (Exception ex) {
OseeLog.log(Activator.class, OseeLevel.SEVERE_POPUP, ex);
}
}
return selectedChanged;
}
/**
* @return the minSelectionRequired
*/
public int getMinSelectionRequired() {
return minSelectionRequired;
}
/**
* @return the maxSelectionRequired
*/
public int getMaxSelectionRequired() {
return maxSelectionRequired;
}
}
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