com.agynamix.platform.frontend.dialogs.ProgressBarDialog.java Source code

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Here is the source code for com.agynamix.platform.frontend.dialogs.ProgressBarDialog.java

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/*
 * Copyright by AGYNAMIX(R). All rights reserved. 
 * This file is made available under the terms of the
 * license this product is released under.
 * 
 * For details please see the license file you should have
 * received, or go to:
 * 
 * http://www.agynamix.com
 * 
 * Contributors: agynamix.com (http://www.agynamix.com)
 */
package com.agynamix.platform.frontend.dialogs;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
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 org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;

public abstract class ProgressBarDialog extends TitleAreaDialog {

    private Label processMessageLabel; // info of process finish
    private Label lineLabel; //
    private Composite progressBarComposite; //
    private CLabel message; //
    private ProgressBar progressBar = null; //

    protected volatile boolean isClosed = false; // closed state

    protected int executeTime = 50; // process times
    protected Image processImage = null; // FIXME: SWTUtil.getImageOfMessage();//image

    public ProgressBarDialog(Shell parent) {
        super(parent);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
     */
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, IDialogConstants.ABORT_ID, IDialogConstants.ABORT_LABEL, true);
    }

    @Override
    protected void buttonPressed(int buttonId) {
        if (buttonId == IDialogConstants.ABORT_ID) {
            isClosed = true;
        }
        super.buttonPressed(buttonId);
    }

    /**
     * @see org.eclipse.jface.dialogs.TitleAreaDialog#createContents(org.eclipse.swt.widgets.Composite)
     */
    protected Control createContents(Composite parent) {
        Control content = super.createContents(parent);
        getShell().setText("Please wait...");
        setTitle("Please wait...");
        setMessage("Please be patient while the requested operation is performed.");
        return content;
    }

    // public int open()
    // {
    // createContents(); // create window
    // shell.open();
    // shell.layout();
    //
    // // start work
    // new ProcessThread(executeTime).start();
    //
    // return result;
    // }

    protected Control createDialogArea(Composite parent) {
        final Composite parentComp = (Composite) super.createDialogArea(parent);
        final Composite composite = new Composite(parentComp, SWT.NONE);
        composite.setSize(parentComp.getSize());

        final GridLayout gridLayout = new GridLayout();
        gridLayout.verticalSpacing = 10;

        composite.setLayout(gridLayout);
        composite.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
        composite.setLayout(new GridLayout());

        message = new CLabel(composite, SWT.NONE);
        //    message.setImage(processImage);
        message.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
        message.setText("Transfering data...");

        progressBarComposite = new Composite(parentComp, SWT.NONE);
        progressBarComposite.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, false, false));
        progressBarComposite.setLayout(new FillLayout());

        progressBar = new ProgressBar(progressBarComposite, SWT.SMOOTH);
        progressBar.setMaximum(executeTime);

        processMessageLabel = new Label(parentComp, SWT.NONE);
        processMessageLabel.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, false, false));
        lineLabel = new Label(parentComp, SWT.HORIZONTAL | SWT.SEPARATOR);
        lineLabel.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, false, false));

        return composite;
    }

    protected abstract String process(int times);

    protected void cleanUp() {
    }

    protected void doBefore() {
    }

    protected void doAfter() {
    }

    class ProcessThread extends Thread {
        private int max = 0;
        private volatile boolean shouldStop = false;

        ProcessThread(int max) {
            this.max = max;
        }

        public void run() {
            doBefore();
            for (final int[] i = new int[] { 1 }; i[0] <= max; i[0]++) {
                //
                final String info = process(i[0]);
                if (getShell().getDisplay().isDisposed()) {
                    return;
                }
                getShell().getDisplay().syncExec(new Runnable() {
                    public void run() {
                        if (progressBar.isDisposed()) {
                            return;
                        }
                        //
                        processMessageLabel.setText(info);
                        //
                        progressBar.setSelection(i[0]);
                        //
                        if (i[0] == max || isClosed) {
                            if (isClosed) {
                                shouldStop = true;//
                                cleanUp();//
                            }
                        }
                    }
                });

                if (shouldStop) {
                    break;
                }
            }
            doAfter();
        }
    }

    public void setExecuteTime(int executeTime) {
        this.executeTime = executeTime;
    }

    public abstract void initGuage();

}