org.csstudio.dal.ui.internal.dnd.ChooseControlSystemPrefixDialog.java Source code

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Here is the source code for org.csstudio.dal.ui.internal.dnd.ChooseControlSystemPrefixDialog.java

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/*
 * Copyright (c) 2008 Stiftung Deutsches Elektronen-Synchrotron,
 * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
 *
 * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
 * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
 * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
 * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
 * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
 * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
 * OR MODIFICATIONS.
 * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
 * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
 * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
 * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
 */
/**
*
*/
package org.csstudio.dal.ui.internal.dnd;

import org.csstudio.platform.model.pvs.ControlSystemEnum;
import org.csstudio.platform.model.pvs.ProcessVariableAdressFactory;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.model.BaseWorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;

public class ChooseControlSystemPrefixDialog extends MessageDialog {
    private ControlSystemEnum _selectedControlSystem;
    private boolean _dontAskAgain;

    public ChooseControlSystemPrefixDialog(Shell parentShell) {
        super(parentShell, "Control System Prefix", null, "Please choose the appropriate control system.",
                MessageDialog.QUESTION, new String[] { "Ok", "Cancel" }, 0);
    }

    @Override
    protected Control createCustomArea(Composite parent) {
        TreeViewer tv = new TreeViewer(parent);
        tv.setLabelProvider(new WorkbenchLabelProvider());
        tv.setContentProvider(new BaseWorkbenchContentProvider() {

            @Override
            public Object[] getElements(Object element) {
                return (Object[]) element;
            }

        });
        tv.setInput(ControlSystemEnum.valuesShown());

        tv.addSelectionChangedListener(new ISelectionChangedListener() {

            public void selectionChanged(SelectionChangedEvent event) {
                IStructuredSelection sel = (IStructuredSelection) event.getSelection();
                if (sel != null && sel.getFirstElement() != null) {
                    _selectedControlSystem = (ControlSystemEnum) sel.getFirstElement();
                }
            }

        });

        tv.setSelection(
                new StructuredSelection(ProcessVariableAdressFactory.getInstance().getDefaultControlSystem()));

        final Button dontAskAgainButton = new Button(parent, SWT.CHECK);
        dontAskAgainButton.setText("Dont ask again!");
        dontAskAgainButton.setSelection(!ProcessVariableAdressFactory.getInstance().askForControlSystem());

        dontAskAgainButton.addSelectionListener(new SelectionListener() {

            public void widgetDefaultSelected(SelectionEvent e) {

            }

            public void widgetSelected(SelectionEvent e) {
                _dontAskAgain = dontAskAgainButton.getSelection();
            }

        });

        Label l = new Label(parent, SWT.NONE);
        l.setText(
                "Note: You can change the default setting on the | > CSS Core > Control System | preference page.");
        return parent;
    }

    public ControlSystemEnum getSelectedControlSystem() {
        return _selectedControlSystem;
    }

    public boolean dontAskAgain() {
        return _dontAskAgain;
    }

}