de.walware.ecommons.ui.components.EditableTextList.java Source code

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Here is the source code for de.walware.ecommons.ui.components.EditableTextList.java

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/*=============================================================================#
 # Copyright (c) 2012-2015 Stephan Wahlbrink (WalWare.de) and others.
 # 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:
 #     Stephan Wahlbrink - initial API and implementation
 #=============================================================================*/

package de.walware.ecommons.ui.components;

import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.ViewerComparator;
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 de.walware.ecommons.ui.util.LayoutUtil;
import de.walware.ecommons.ui.util.ViewerUtil;

public class EditableTextList implements ButtonGroup.IActions<String> {

    private TableViewer fViewer;
    private ViewerUtil.TableComposite fComposite;
    private TableViewerColumn fColumn;

    private ButtonGroup<String> fButtonGroup;

    public Control create(final Composite parent, final ViewerComparator comparator) {
        final Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(LayoutUtil.applyCompositeDefaults(new GridLayout(), 2));

        fComposite = new ViewerUtil.TableComposite(composite,
                SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.FULL_SELECTION);
        fComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        fViewer = fComposite.viewer;
        fViewer.setContentProvider(new ArrayContentProvider());
        fViewer.setComparator(comparator);
        fComposite.table.setFont(JFaceResources.getTextFont());
        fComposite.table.setLinesVisible(true);

        fColumn = new TableViewerColumn(fViewer, SWT.NONE);
        fColumn.setLabelProvider(new ColumnLabelProvider());
        fComposite.layout.setColumnData(fColumn.getColumn(), new ColumnWeightData(100));

        fButtonGroup = new ButtonGroup<String>(composite, this, true);
        fButtonGroup.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, true));

        fButtonGroup.addAddButton(null);
        fButtonGroup.addEditButton(null);
        fButtonGroup.addDeleteButton(null);

        return composite;
    }

    public TableViewer getViewer() {
        return fViewer;
    }

    public TableViewerColumn getColumn() {
        return fColumn;
    }

    public void setInput(final IObservableCollection input) {
        fButtonGroup.connectTo(fViewer, input, null);
        fViewer.setInput(input);
        fComposite.layout(false);
    }

    public void applyChange(final Object oldWord, final Object newWord) {
        if (oldWord.equals(newWord)) {
            return;
        }
        fButtonGroup.apply((String) oldWord, (String) newWord);
    }

    public void refresh() {
        fViewer.refresh(false);
        fComposite.layout(false);
    }

    @Override
    public String edit(final int command, final String item, final Object parent) {
        if (command == ButtonGroup.ADD_NEW) {
            return ""; //$NON-NLS-1$
        }
        if (command == ButtonGroup.EDIT) {
            return item;
        }
        return null;
    }

    @Override
    public void updateState(final IStructuredSelection selection) {
        fComposite.layout(false);
    }

}