com.nokia.carbide.search.system.internal.ui.util.ListDialog.java Source code

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Here is the source code for com.nokia.carbide.search.system.internal.ui.util.ListDialog.java

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/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package com.nokia.carbide.search.system.internal.ui.util;

import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.layout.GridData;
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.swt.widgets.Table;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.ui.dialogs.SelectionDialog;

/**
 * Dialog that shows a list of items with icon and label.
 */
public class ListDialog extends SelectionDialog {

    private static final int WIDTH_IN_CHARACTERS = 55;

    private IStructuredContentProvider fContentProvider;
    private ILabelProvider fLabelProvider;
    private Object fInput;
    private TableViewer fViewer;
    private boolean fCreateCancelButton = true;

    public ListDialog(Shell parent, Object input, String title, String message, IStructuredContentProvider sp,
            ILabelProvider lp) {
        super(parent);
        setTitle(title);
        setMessage(message);
        fInput = input;
        fContentProvider = sp;
        fLabelProvider = lp;
    }

    public void setCreateCancelButton(boolean value) {
        fCreateCancelButton = value;
    }

    /*
     * Overrides method from Dialog
     */
    protected Label createMessageArea(Composite composite) {
        Label label = new Label(composite, SWT.WRAP);
        label.setText(getMessage());
        GridData gd = new GridData(GridData.FILL_BOTH);
        gd.widthHint = convertWidthInCharsToPixels(WIDTH_IN_CHARACTERS);
        label.setLayoutData(gd);
        applyDialogFont(label);
        return label;
    }

    /*
     * Overrides method from Dialog
     */
    protected Control createDialogArea(Composite container) {
        Composite parent = (Composite) super.createDialogArea(container);
        createMessageArea(parent);
        fViewer = new TableViewer(parent, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        fViewer.setContentProvider(fContentProvider);

        final Table table = fViewer.getTable();
        table.addMouseListener(new MouseAdapter() {
            public void mouseDoubleClick(MouseEvent e) {
                if (fCreateCancelButton)
                    okPressed();
            }
        });
        fViewer.setLabelProvider(fLabelProvider);
        fViewer.setInput(fInput);
        List initialSelection = getInitialElementSelections();
        if (initialSelection != null)
            fViewer.setSelection(new StructuredSelection(initialSelection));
        GridData gd = new GridData(GridData.FILL_BOTH);
        gd.heightHint = convertHeightInCharsToPixels(15);
        gd.widthHint = convertWidthInCharsToPixels(WIDTH_IN_CHARACTERS);
        table.setLayoutData(gd);
        applyDialogFont(table);
        return table;
    }

    /*
     * Overrides method from Dialog
     */
    protected void createButtonsForButtonBar(Composite parent) {
        if (!fCreateCancelButton)
            createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        else
            super.createButtonsForButtonBar(parent);
    }

    /*
     * Overrides method from Dialog
     */
    protected void okPressed() {
        // Build a list of selected children.
        ISelection selection = fViewer.getSelection();
        if (selection instanceof IStructuredSelection)
            setResult(((IStructuredSelection) fViewer.getSelection()).toList());
        super.okPressed();
    }
}