gov.redhawk.sca.internal.ui.properties.ScaSimpleSequenceValueEditingSupport.java Source code

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Here is the source code for gov.redhawk.sca.internal.ui.properties.ScaSimpleSequenceValueEditingSupport.java

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/** 
 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 * 
 * This file is part of REDHAWK IDE.
 * 
 * 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.
 *
 */
package gov.redhawk.sca.internal.ui.properties;

import gov.redhawk.model.sca.ScaSimpleSequenceProperty;
import gov.redhawk.model.sca.util.ModelUtil;
import gov.redhawk.sca.internal.ui.properties.ScaSimpleSequencePropertyValuePropertyDescriptor.ScaSimpleSequencePropertyValueCellEditor;

import java.util.Arrays;

import mil.jpeojtrs.sca.prf.provider.RadixLabelProviderUtil;

import org.eclipse.emf.common.ui.celleditor.ExtendedComboBoxCellEditor;
import org.eclipse.emf.ecore.EDataType;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Widget;

/**
 * @since 2.1
 * 
 */
public class ScaSimpleSequenceValueEditingSupport extends EditingSupport {

    private final ScaSimpleSequenceProperty property;

    public ScaSimpleSequenceValueEditingSupport(final ScaSimpleSequenceProperty property,
            final TableViewer viewer) {
        super(viewer);
        this.property = property;
    }

    @Override
    public TableViewer getViewer() {
        return (TableViewer) super.getViewer();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected CellEditor getCellEditor(final Object element) {

        if (!ModelUtil.isSettable(this.property)) {
            return null;
        }

        final EDataType eDataType = this.property.getDefinition().getType()
                .toEDataType(this.property.getDefinition().isComplex());
        final Composite composite = (Composite) getViewer().getControl();
        if (eDataType.getInstanceClass() == Boolean.class || eDataType.getInstanceClass() == Boolean.TYPE) {
            return new ExtendedComboBoxCellEditor(composite,
                    Arrays.asList(new Object[] { Boolean.FALSE, Boolean.TRUE }), getEditLabelProvider(), true);
        }
        return new ScaSimpleSequencePropertyValuePropertyDescriptor.ScaSimpleSequencePropertyValueCellEditor(
                this.property, composite);
    }

    protected ILabelProvider getEditLabelProvider() {
        return new LabelProvider();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected boolean canEdit(final Object element) {
        return true;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected Object getValue(final Object element) {
        return AdapterFactoryEditingDomain.unwrap(element);
    }

    @Override
    protected void saveCellEditorValue(final CellEditor cellEditor, final ViewerCell cell) {
        final Object newValue = cellEditor.getValue();
        final Widget item = cell.getItem();
        final int valueIndex = getViewer().getTable().indexOf((TableItem) item);
        this.property.getValues().set(valueIndex, newValue);
    }

    @Override
    protected void setValue(final Object element, final Object value) {
        // should never be called
        throw new UnsupportedOperationException();
    }

    @Override
    protected void initializeCellEditorValue(final CellEditor cellEditor, final ViewerCell cell) {
        if (cellEditor instanceof ScaSimpleSequencePropertyValueCellEditor) {
            final ScaSimpleSequencePropertyValueCellEditor simpleSequenceCellEditor = (ScaSimpleSequencePropertyValueCellEditor) cellEditor;
            int[] radix = new int[0];
            if (this.property.getDefinition().getValues() != null) {
                radix = RadixLabelProviderUtil.getRadix(this.property.getDefinition().getValues().getValue());
            }
            final Widget item = cell.getItem();
            final int valueIndex = getViewer().getTable().indexOf((TableItem) item);
            if (valueIndex < radix.length) {
                simpleSequenceCellEditor.getValidator().setRadix(radix[valueIndex]);
            } else if (radix.length > 0) {
                simpleSequenceCellEditor.getValidator().setRadix(radix[0]);
            }
        }
        super.initializeCellEditorValue(cellEditor, cell);
    }
}