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/*******************************************************************************
* Copyright (c) 2014 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.Iterator;
import java.util.List;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osee.framework.ui.plugin.util.ArrayTreeContentProvider;
import org.eclipse.osee.framework.ui.skynet.internal.Activator;
import org.eclipse.osee.framework.ui.skynet.widgets.dialog.FilteredTree;
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.Label;
import org.eclipse.ui.dialogs.PatternFilter;
/**
* @author Donald G. Dunne
*/
public class XFilteredTree extends GenericXWidget {
private FilteredTree filteredTree;
private Composite parent;
private Composite composite;
private int requiredMinSelected = 0;
private int requiredMaxSelected = 0;
private PatternFilter patternFilter = null;
public XFilteredTree(String displayLabel) {
super(displayLabel);
patternFilter = new PatternFilter();
}
@Override
public Control getControl() {
return filteredTree;
}
/**
* Create List Widgets. Widgets Created: List: horizonatalSpan takes up 2 columns; horizontalSpan must be >=2
*/
@Override
protected void createControls(Composite parent, int horizontalSpan) {
this.parent = parent;
composite = null;
if (!verticalLabel && horizontalSpan < 2) {
horizontalSpan = 2;
} else if (verticalLabel) {
horizontalSpan = 1;
}
if (isDisplayLabel() && verticalLabel) {
composite = new Composite(parent, SWT.NONE);
int numColumns = 1;
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = numColumns;
composite.setLayout(gridLayout);
GridData gd =
new GridData(
GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL);
gd.horizontalSpan = horizontalSpan;
composite.setLayoutData(gd);
} else {
composite = parent;
}
// Create List Widgets
if (isDisplayLabel()) {
labelWidget = new Label(composite, SWT.NONE);
labelWidget.setText(getLabel() + ":");
if (getToolTip() != null) {
labelWidget.setToolTipText(getToolTip());
}
}
filteredTree = new FilteredTree(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL, patternFilter, true);
filteredTree.getViewer().setContentProvider(new ArrayTreeContentProvider());
GridData gridData5 = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
gridData5.verticalSpan = 10;
if (isFillHorizontally()) {
gridData5.grabExcessHorizontalSpace = true;
}
gridData5.heightHint = 500;
gridData5.grabExcessVerticalSpace = true;
filteredTree.setLayoutData(gridData5);
filteredTree.setEnabled(isEditable());
}
@Override
public void dispose() {
labelWidget.dispose();
filteredTree.dispose();
if (composite != parent) {
composite.dispose();
}
if (parent != null && !parent.isDisposed()) {
parent.layout();
}
}
@Override
public IStatus isValid() {
IStatus valid = Status.OK_STATUS;
if (isRequiredEntry()) {
int numSelected = ((StructuredSelection) filteredTree.getViewer().getSelection()).size();
if (requiredMaxSelected != 0) {
if (numSelected < requiredMinSelected) {
valid =
new Status(IStatus.ERROR, Activator.PLUGIN_ID,
getLabel() + " must have at least " + requiredMinSelected + " selected.");
} else if (numSelected > requiredMaxSelected) {
valid =
new Status(IStatus.ERROR, Activator.PLUGIN_ID,
getLabel() + " should only have " + requiredMaxSelected + " selected.");
} else {
valid = new Status(IStatus.ERROR, Activator.PLUGIN_ID, getLabel());
}
}
if (numSelected == 0) {
valid = new Status(IStatus.ERROR, Activator.PLUGIN_ID, getLabel() + " must be selected.");
}
}
return valid;
}
@Override
public boolean isEmpty() {
return filteredTree.getViewer().getSelection().isEmpty();
}
/**
* Minimum number of selected items that makes this widget valid
*/
public void setRequiredSelected(int minSelected, int maxSelected) {
requiredMinSelected = minSelected;
requiredMaxSelected = maxSelected;
setRequiredEntry(true);
}
@Override
public void setRequiredEntry(boolean requiredEntry) {
super.setRequiredEntry(requiredEntry);
if (!requiredEntry) {
requiredMinSelected = 1;
requiredMaxSelected = 1;
}
}
public PatternFilter getPatternFilter() {
return patternFilter;
}
public void setPatternFilter(PatternFilter patternFilter) {
this.patternFilter = patternFilter;
}
public void setInput(Object input) {
filteredTree.getViewer().setInput(input);
}
public Collection<Object> getSelected() {
List<Object> results = new ArrayList<Object>();
Iterator<?> i = ((IStructuredSelection) filteredTree.getViewer().getSelection()).iterator();
while (i.hasNext()) {
Object obj = i.next();
results.add(obj);
}
return results;
}
public FilteredTree getFilteredTree() {
return filteredTree;
}
}
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