SBAssistant.java

package org.herac.tuxguitar.player.impl.jsa.assistant;

import java.net.MalformedURLException;
import java.net.URL;

import org.apache.log4j.Logger;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Shell;
import org.herac.tuxguitar.gui.TuxGuitar;
import org.herac.tuxguitar.gui.util.ConfirmDialog;
import org.herac.tuxguitar.gui.util.DialogUtils;
import org.herac.tuxguitar.player.impl.jsa.midiport.MidiPortSynthesizer;
import org.herac.tuxguitar.util.TGSynchronizer;

public class SBAssistant {

  public static final SBUrl[] URLS = new SBUrl[] {
      new SBUrl(
          toURL("http://java.sun.com/products/java-media/sound/soundbank-min.gm.zip"),
          TuxGuitar.getProperty("jsa.soundbank-assistant.minimal")),
      new SBUrl(
          toURL("http://java.sun.com/products/java-media/sound/soundbank-mid.gm.zip"),
          TuxGuitar.getProperty("jsa.soundbank-assistant.medium")),
      new SBUrl(
          toURL("http://java.sun.com/products/java-media/sound/soundbank-deluxe.gm.zip"),
          TuxGuitar.getProperty("jsa.soundbank-assistant.deluxe")), };

  private static URL toURL(String s) {
    try {
      return new URL(s);
    } catch (MalformedURLException e) {
      LOG.error(e);
    }
    return null;
  }

  /** The Logger for this class. */
  public static final transient Logger LOG = Logger.getLogger(SBAssistant.class);

  private MidiPortSynthesizer synthesizer;

  public SBAssistant(MidiPortSynthesizer synthesizer) {
    this.synthesizer = synthesizer;
  }

  protected GridData getButtonsData() {
    GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
    data.minimumWidth = 80;
    data.minimumHeight = 25;
    return data;
  }

  protected GridData getGroupData() {
    GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
    data.minimumWidth = 250;
    return data;
  }

  protected URL getSelection(Button[] buttons) {
    for (int i = 0; i < buttons.length; i++) {
      if (buttons[i].getSelection() && buttons[i].getData() instanceof SBUrl) {
        return ((SBUrl) buttons[i].getData()).getUrl();
      }
    }
    return null;
  }

  protected void install(URL url) {
    new SBInstallerGui(url, this.synthesizer).open();
  }

  protected void open() {
    final Shell dialog = DialogUtils.newDialog(TuxGuitar.instance().getShell(),
        SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
    dialog.setLayout(new GridLayout());

    // ------------------------------------------------------------------------------
    Group group = new Group(dialog, SWT.SHADOW_ETCHED_IN);
    group.setLayout(new GridLayout());
    group.setLayoutData(getGroupData());
    group.setText(TuxGuitar.getProperty("jsa.soundbank-assistant.select"));

    final Button urls[] = new Button[URLS.length];
    for (int i = 0; i < URLS.length; i++) {
      urls[i] = new Button(group, SWT.RADIO);
      urls[i].setText(URLS[i].getName());
      urls[i].setData(URLS[i]);
      urls[i].setSelection(i == 0);
    }

    // ------------------BUTTONS--------------------------
    Composite buttons = new Composite(dialog, SWT.NONE);
    buttons.setLayout(new GridLayout(2, false));
    buttons.setLayoutData(new GridData(SWT.RIGHT, SWT.BOTTOM, true, false));

    Button buttonOk = new Button(buttons, SWT.PUSH);
    buttonOk.setText(TuxGuitar.getProperty("ok"));
    buttonOk.setLayoutData(getButtonsData());
    buttonOk.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent arg0) {
        URL url = getSelection(urls);

        dialog.dispose();

        if (url != null) {
          install(url);
        }
      }
    });

    Button buttonCancel = new Button(buttons, SWT.PUSH);
    buttonCancel.setText(TuxGuitar.getProperty("cancel"));
    buttonCancel.setLayoutData(getButtonsData());
    buttonCancel.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent arg0) {
        dialog.dispose();
      }
    });

    dialog.setDefaultButton(buttonOk);

    DialogUtils.openDialog(dialog, DialogUtils.OPEN_STYLE_CENTER
        | DialogUtils.OPEN_STYLE_PACK);
  }

  public void process() {
    new Thread(new Runnable() {
      public void run() {
        try {
          TGSynchronizer.instance().addRunnable(
              new TGSynchronizer.TGRunnable() {
                public void run() {
                  ConfirmDialog dialog = new ConfirmDialog(TuxGuitar
                      .getProperty("jsa.soundbank-assistant.confirm-message"));
                  dialog.setDefaultStatus(ConfirmDialog.STATUS_NO);
                  if (dialog.confirm(ConfirmDialog.BUTTON_YES
                      | ConfirmDialog.BUTTON_NO, ConfirmDialog.BUTTON_YES) == ConfirmDialog.STATUS_YES) {
                    open();
                  }
                }
              });
        } catch (Throwable e) {
          LOG.error(e);
        }
      }
    }).start();
  }

}