edu.kit.joana.ui.ifc.sdg.gui.views.DoubleListDialog.java Source code

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Here is the source code for edu.kit.joana.ui.ifc.sdg.gui.views.DoubleListDialog.java

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/**
 * This file is part of the Joana IFC project. It is developed at the
 * Programming Paradigms Group of the Karlsruhe Institute of Technology.
 *
 * For further details on licensing please read the information at
 * http://joana.ipd.kit.edu or contact the authors.
 */
/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package edu.kit.joana.ui.ifc.sdg.gui.views;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ILabelProvider;
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.swt.SWT;
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.ui.dialogs.SelectionDialog;

/**
 * A dialog that prompts for one element out of a list of elements. Uses
 * <code>IStructuredContentProvider</code> to provide the elements and
 * <code>ILabelProvider</code> to provide their labels.
 *
 * @since 2.1
 */
public class DoubleListDialog extends SelectionDialog {
    private IStructuredContentProvider fContentProvider1, fContentProvider2;
    private ILabelProvider fLabelProvider1, fLabelProvider2;
    private Object fInput1, fInput2;
    private TableViewer fTableViewer1, fTableViewer2;
    private String label2text;

    private boolean fAddCancelButton = true;
    private int widthInChars = 55;
    private int heightInChars = 15;

    /**
     * Create a new instance of the receiver with parent shell of parent.
     * @param parent
     */
    public DoubleListDialog(Shell parent) {
        super(parent);
    }

    /**
     * @param input The input for the list.
     */
    public void setInput1(Object input1) {
        fInput1 = input1;
    }

    public void setInput2(Object input2) {
        fInput2 = input2;
    }

    /**
     * @param sp The content provider for the list.
     */
    public void setContentProvider1(IStructuredContentProvider sp) {
        fContentProvider1 = sp;
    }

    public void setContentProvider2(IStructuredContentProvider sp) {
        fContentProvider2 = sp;
    }

    /**
     * @param lp The labelProvider for the list.
     */
    public void setLabelProvider1(ILabelProvider lp) {
        fLabelProvider1 = lp;
    }

    public void setLabelProvider2(ILabelProvider lp) {
        fLabelProvider2 = lp;
    }

    /**
     *@param addCancelButton if <code>true</code> there will be a cancel
     * button.
     */
    public void setAddCancelButton(boolean addCancelButton) {
        fAddCancelButton = addCancelButton;
    }

    /**
     * @return the TableViewer for the receiver.
     */
    public TableViewer getTableViewer1() {
        return fTableViewer1;
    }

    public TableViewer getTableViewer2() {
        return fTableViewer2;
    }

    protected void createButtonsForButtonBar(Composite parent) {
        if (!fAddCancelButton)
            createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        else
            super.createButtonsForButtonBar(parent);
    }

    protected Control createDialogArea(Composite container) {
        Composite parent = (Composite) super.createDialogArea(container);
        createMessageArea(parent);

        fTableViewer1 = new TableViewer(parent, getTableStyle());
        fTableViewer1.setContentProvider(fContentProvider1);
        fTableViewer1.setLabelProvider(fLabelProvider1);
        fTableViewer1.setInput(fInput1);

        List<?> initialSelection = getInitialElementSelections();
        if (initialSelection != null)
            fTableViewer1.setSelection(new StructuredSelection(initialSelection));
        GridData gd1 = new GridData(GridData.FILL_BOTH);
        gd1.heightHint = convertHeightInCharsToPixels(heightInChars);
        gd1.widthHint = convertWidthInCharsToPixels(widthInChars);
        Table table1 = fTableViewer1.getTable();
        table1.setLayoutData(gd1);
        table1.setFont(container.getFont());
        if (fInput1 == null) {
            table1.setEnabled(false);
        }
        Label label2 = new Label(parent, SWT.LEAD);
        label2.setText(label2text);

        fTableViewer2 = new TableViewer(parent, getTableStyle());
        fTableViewer2.setContentProvider(fContentProvider2);
        fTableViewer2.setLabelProvider(fLabelProvider2);
        fTableViewer2.setInput(fInput2);
        if (initialSelection != null)
            fTableViewer2.setSelection(new StructuredSelection(initialSelection));
        GridData gd2 = new GridData(GridData.FILL_BOTH);
        gd2.heightHint = convertHeightInCharsToPixels(heightInChars);
        gd2.widthHint = convertWidthInCharsToPixels(widthInChars);
        Table table2 = fTableViewer2.getTable();
        table2.setLayoutData(gd2);
        table2.setFont(container.getFont());
        if (fInput2 == null) {
            table2.setEnabled(false);
        }
        return parent;
    }

    /**
     * Return the style flags for the table viewer.
     * @return int
     */
    protected int getTableStyle() {
        return SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER;
    }

    /*
     * Overrides method from Dialog
     */
    protected void okPressed() {
        // Build a list of selected children.
        IStructuredSelection selection1 = (IStructuredSelection) fTableViewer1.getSelection();
        IStructuredSelection selection2 = (IStructuredSelection) fTableViewer2.getSelection();
        @SuppressWarnings("rawtypes")
        ArrayList<List> results = new ArrayList<List>();
        results.add(selection1.toList());
        results.add(selection2.toList());
        setResult(results);
        super.okPressed();
    }

    /**
     * Returns the initial height of the dialog in number of characters.
     *
     * @return the initial height of the dialog in number of characters
     */
    public int getHeightInChars() {
        return heightInChars;
    }

    /**
     * Returns the initial width of the dialog in number of characters.
     *
     * @return the initial width of the dialog in number of characters
     */
    public int getWidthInChars() {
        return widthInChars;
    }

    /**
     * Sets the initial height of the dialog in number of characters.
     *
     * @param heightInChars
     *            the initialheight of the dialog in number of characters
     */
    public void setHeightInChars(int heightInChars) {
        this.heightInChars = heightInChars;
    }

    /**
     * Sets the initial width of the dialog in number of characters.
     *
     * @param widthInChars
     *            the initial width of the dialog in number of characters
     */
    public void setWidthInChars(int widthInChars) {
        this.widthInChars = widthInChars;
    }

    public void setMessage2(String message2) {
        label2text = message2;
    }

    public void setMessage1(String message1) {
        setMessage(message1);
    }
}