de.uniluebeck.itm.spyglass.gui.databinding.DatabindingTextEditingSupport.java Source code

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Here is the source code for de.uniluebeck.itm.spyglass.gui.databinding.DatabindingTextEditingSupport.java

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/*
 * --------------------------------------------------------------------------------
 * This file is part of the WSN visualization framework SpyGlass. Copyright (C)
 * 2004-2007 by the SwarmNet (www.swarmnet.de) project SpyGlass is free
 * software; you can redistribute it and/or modify it under the terms of the BSD
 * License. Refer to spyglass-licence.txt file in the root of the SpyGlass
 * source tree for further details.
 * --------------------------------------------------------------------------------
 */
package de.uniluebeck.itm.spyglass.gui.databinding;

import org.eclipse.core.databinding.Binding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.conversion.IConverter;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.validation.IValidator;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.ObservableValueEditingSupport;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;

public class DatabindingTextEditingSupport extends ObservableValueEditingSupport {

    protected CellEditor cellEditor;
    protected DataBindingContext dbc;
    protected String elementName = "value";
    protected IValidator afterConvertValidator;
    protected IValidator afterGetValidator;
    protected IConverter converter;

    public DatabindingTextEditingSupport(final ColumnViewer viewer, final DataBindingContext dbc,
            final String elementName, final IConverter converter, final IValidator afterConvertValidator,
            final IValidator afterGetValidator) {
        super(viewer, dbc);
        this.dbc = dbc;
        this.cellEditor = new TextCellEditor((Composite) viewer.getControl());
        this.afterConvertValidator = afterConvertValidator;
        this.afterGetValidator = afterGetValidator;
        this.converter = converter;

        this.elementName = elementName;
    }

    public DatabindingTextEditingSupport(final ColumnViewer viewer, final DataBindingContext dbc,
            final IConverter converter, final IValidator afterConvertValidator,
            final IValidator afterGetValidator) {
        super(viewer, dbc);
        this.dbc = dbc;
        this.cellEditor = new TextCellEditor((Composite) viewer.getControl());
        this.afterConvertValidator = afterConvertValidator;
        this.afterGetValidator = afterGetValidator;
        this.converter = converter;
    }

    @Override
    protected CellEditor getCellEditor(final Object element) {
        return cellEditor;
    }

    @Override
    protected IObservableValue doCreateCellEditorObservable(final CellEditor cellEditor) {
        return SWTObservables.observeText(cellEditor.getControl(), SWT.Modify);
    }

    @Override
    protected IObservableValue doCreateElementObservable(final Object element, final ViewerCell cell) {
        return BeansObservables.observeValue(dbc.getValidationRealm(), element, elementName);
    }

    @Override
    protected Binding createBinding(final IObservableValue target, final IObservableValue model) {
        final UpdateValueStrategy s = new UpdateValueStrategy().setAfterConvertValidator(afterConvertValidator)
                .setAfterGetValidator(afterGetValidator).setConverter(converter);

        return dbc.bindValue(target, model, s, null);

    }
}