DialogUtils.java example

Explorer
TuxGuitar-master
package org.herac.tuxguitar.gui.util;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.herac.tuxguitar.gui.actions.ActionLock;

public class DialogUtils {

  public static final int OPEN_STYLE_CENTER = 0x08;

  public static final int OPEN_STYLE_LAYOUT = 0x04;

  public static final int OPEN_STYLE_MAXIMIZED = 0x10;

  public static final int OPEN_STYLE_PACK = 0x02;

  public static final int OPEN_STYLE_WAIT = 0x01;

  public static final Shell newDialog(Display display, int style) {
    return new Shell(display, style);
  }

  public static final Shell newDialog(Shell parent, int style) {
    parent.setCursor(parent.getDisplay().getSystemCursor(SWT.CURSOR_WAIT));
    return new Shell(parent, style);
  }

  public static final void openDialog(Shell dialog, int style) {
    DialogUtils.openDialog(dialog, dialog.getParent().getShell(), style);
  }

  public static final void openDialog(Shell dialog, Shell parent, int style) {
    Display display = dialog.getDisplay();
    if ((style & OPEN_STYLE_PACK) != 0) {
      dialog.pack();
    }
    if ((style & OPEN_STYLE_LAYOUT) != 0) {
      dialog.layout();
    }
    if ((style & OPEN_STYLE_MAXIMIZED) != 0) {
      dialog.setMaximized(true);
    } else if ((style & OPEN_STYLE_CENTER) != 0) {
      int x = Math.max(0, parent.getBounds().x
          + (parent.getBounds().width - dialog.getSize().x) / 2);
      int y = Math.max(0, parent.getBounds().y
          + (parent.getBounds().height - dialog.getSize().y) / 2);
      dialog.setLocation(x, y);
    }
    dialog.open();

    parent.setCursor(display.getSystemCursor(SWT.CURSOR_ARROW));

    if ((style & OPEN_STYLE_WAIT) != 0) {
      if ((dialog.getStyle() & SWT.APPLICATION_MODAL) == 0) {
        ActionLock.unlock();
      }
      while (!display.isDisposed() && !dialog.isDisposed()) {
        if (!display.readAndDispatch()) {
          display.sleep();
        }
      }
    }
  }
}