com.siteview.mde.internal.ui.editor.feature.PortabilityChoicesDialog.java Source code

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Here is the source code for com.siteview.mde.internal.ui.editor.feature.PortabilityChoicesDialog.java

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/*******************************************************************************
 *  Copyright (c) 2000, 2008 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.siteview.mde.internal.ui.editor.feature;

import java.util.StringTokenizer;
import java.util.Vector;
import org.eclipse.jface.dialogs.*;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.*;
import com.siteview.mde.internal.ui.*;
import com.siteview.mde.internal.ui.elements.DefaultTableProvider;
import com.siteview.mde.internal.ui.parts.WizardCheckboxTablePart;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.PlatformUI;

public class PortabilityChoicesDialog extends TrayDialog {
    private String value;
    private Choice[] choices;
    private CheckboxTableViewer choiceViewer;
    private WizardCheckboxTablePart checkboxTablePart;

    class ContentProvider extends DefaultTableProvider {
        public Object[] getElements(Object parent) {
            return choices;
        }
    }

    class ChoiceLabelProvider extends LabelProvider implements ITableLabelProvider {
        public String getColumnText(Object obj, int index) {
            return ((Choice) obj).getLabel();
        }

        public Image getColumnImage(Object obj, int index) {
            return null;
        }
    }

    public PortabilityChoicesDialog(Shell shell, Choice[] choices, String value) {
        super(shell);
        this.value = value;
        this.choices = choices;

        checkboxTablePart = new WizardCheckboxTablePart(
                MDEUIMessages.FeatureEditor_PortabilityChoicesDialog_choices);
    }

    protected void createButtonsForButtonBar(Composite parent) {
        // create OK and Cancel buttons by default
        createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    }

    protected Control createDialogArea(Composite parent) {
        Composite container = new Composite(parent, SWT.NULL);
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginWidth = layout.marginHeight = 9;
        container.setLayout(layout);
        GridData gd = new GridData(GridData.FILL_BOTH);
        container.setLayoutData(gd);

        checkboxTablePart.createControl(container);
        choiceViewer = checkboxTablePart.getTableViewer();
        choiceViewer.setContentProvider(new ContentProvider());
        choiceViewer.setLabelProvider(new ChoiceLabelProvider());

        gd = (GridData) checkboxTablePart.getControl().getLayoutData();
        gd.widthHint = 300;
        gd.heightHint = 350;

        Dialog.applyDialogFont(parent);
        initialize();
        PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IHelpContextIds.FEATURE_PORTABILITY_WIZARD);
        return container;
    }

    public String getValue() {
        return value;
    }

    protected void initialize() {
        choiceViewer.setInput(MDEPlugin.getDefault());

        if (value != null) {
            Vector selected = new Vector();
            StringTokenizer stok = new StringTokenizer(value, ","); //$NON-NLS-1$
            while (stok.hasMoreElements()) {
                String tok = stok.nextToken();
                Choice choice = findChoice(tok);
                if (choice != null)
                    selected.add(choice);
            }
            checkboxTablePart.setSelection(selected.toArray());
        } else
            checkboxTablePart.selectAll(false);
    }

    private Choice findChoice(String value) {
        for (int i = 0; i < choices.length; i++) {
            Choice choice = choices[i];
            if (choice.getValue().equalsIgnoreCase(value))
                return choice;
        }
        return null;
    }

    protected void okPressed() {
        value = computeNewValue();
        super.okPressed();
    }

    private String computeNewValue() {
        Object[] checked = checkboxTablePart.getSelection();
        if (checked.length == 0)
            return ""; //$NON-NLS-1$
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < checked.length; i++) {
            Choice choice = (Choice) checked[i];
            if (i > 0)
                buf.append(","); //$NON-NLS-1$
            buf.append(choice.getValue());
        }
        return buf.toString();
    }
}