示例#1
0
  /**
   * Creates a new <code>Shell</code>. This Shell is the root for the SWT widgets that will be
   * embedded within the AWT canvas.
   *
   * @param display the display for the new Shell
   * @param parent the parent <code>java.awt.Canvas</code> of the new Shell
   * @return a <code>Shell</code> to be the parent of the embedded SWT widgets
   * @exception IllegalArgumentException
   *     <ul>
   *       <li>ERROR_NULL_ARGUMENT - if the display is null
   *       <li>ERROR_NULL_ARGUMENT - if the parent is null
   *       <li>ERROR_INVALID_ARGUMENT - if the parent's peer is not created
   *     </ul>
   *
   * @since 3.0
   */
  public static Shell new_Shell(final Display display, final Canvas parent) {
    if (display == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
    if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
    int /*long*/ handle = 0;

    try {
      loadLibrary();
      handle = getAWTHandle(parent);
    } catch (Throwable e) {
      SWT.error(SWT.ERROR_NOT_IMPLEMENTED, e);
    }
    if (handle == 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, " [peer not created]");

    final Shell shell = Shell.cocoa_new(display, handle);
    final ComponentListener listener =
        new ComponentAdapter() {
          public void componentResized(ComponentEvent e) {
            display.asyncExec(
                new Runnable() {
                  public void run() {
                    if (shell.isDisposed()) return;
                    Dimension dim = parent.getSize();
                    shell.setSize(dim.width, dim.height);
                  }
                });
          }
        };
    parent.addComponentListener(listener);
    shell.addListener(
        SWT.Dispose,
        new Listener() {
          public void handleEvent(Event event) {
            parent.removeComponentListener(listener);
          }
        });
    shell.setVisible(true);
    return shell;
  }
示例#2
0
 /**
  * Returns a <code>java.awt.Frame</code> which is the embedded frame associated with the specified
  * composite.
  *
  * @param parent the parent <code>Composite</code> of the <code>java.awt.Frame</code>
  * @return a <code>java.awt.Frame</code> the embedded frame or <code>null</code>.
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the parent is null
  *     </ul>
  *
  * @since 3.2
  */
 public static Frame getFrame(Composite parent) {
   if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if ((parent.getStyle() & SWT.EMBEDDED) == 0) return null;
   return (Frame) parent.getData(EMBEDDED_FRAME_KEY);
 }
示例#3
0
  /**
   * Creates a new <code>java.awt.Frame</code>. This frame is the root for the AWT components that
   * will be embedded within the composite. In order for the embedding to succeed, the composite
   * must have been created with the SWT.EMBEDDED style.
   *
   * <p>IMPORTANT: As of JDK1.5, the embedded frame does not receive mouse events. When a
   * lightweight component is added as a child of the embedded frame, the cursor does not change. In
   * order to work around both these problems, it is strongly recommended that a heavyweight
   * component such as <code>java.awt.Panel</code> be added to the frame as the root of all
   * components.
   *
   * @param parent the parent <code>Composite</code> of the new <code>java.awt.Frame</code>
   * @return a <code>java.awt.Frame</code> to be the parent of the embedded AWT components
   * @exception IllegalArgumentException
   *     <ul>
   *       <li>ERROR_NULL_ARGUMENT - if the parent is null
   *       <li>ERROR_INVALID_ARGUMENT - if the parent Composite does not have the SWT.EMBEDDED style
   *     </ul>
   *
   * @since 3.0
   */
  public static Frame new_Frame(final Composite parent) {
    if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
    if ((parent.getStyle() & SWT.EMBEDDED) == 0) {
      SWT.error(SWT.ERROR_INVALID_ARGUMENT);
    }

    final int /*long*/ handle = parent.view.id;

    Class clazz = null;
    try {
      String className =
          embeddedFrameClass != null ? embeddedFrameClass : "apple.awt.CEmbeddedFrame";
      if (embeddedFrameClass == null) {
        clazz = Class.forName(className, true, ClassLoader.getSystemClassLoader());
      } else {
        clazz = Class.forName(className);
      }
    } catch (ClassNotFoundException cne) {
      SWT.error(SWT.ERROR_NOT_IMPLEMENTED, cne);
    } catch (Throwable e) {
      SWT.error(SWT.ERROR_UNSPECIFIED, e, " [Error while starting AWT]");
    }

    initializeSwing();
    Object value = null;
    Constructor constructor = null;
    try {
      constructor = clazz.getConstructor(new Class[] {long.class});
      value = constructor.newInstance(new Object[] {new Long(handle)});
    } catch (Throwable e) {
      SWT.error(SWT.ERROR_NOT_IMPLEMENTED, e);
    }
    final Frame frame = (Frame) value;
    frame.addNotify();

    parent.setData(EMBEDDED_FRAME_KEY, frame);

    /* Forward the iconify and deiconify events */
    final Listener shellListener =
        new Listener() {
          public void handleEvent(Event e) {
            switch (e.type) {
              case SWT.Deiconify:
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_DEICONIFIED));
                      }
                    });
                break;
              case SWT.Iconify:
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_ICONIFIED));
                      }
                    });
                break;
            }
          }
        };
    Shell shell = parent.getShell();
    shell.addListener(SWT.Deiconify, shellListener);
    shell.addListener(SWT.Iconify, shellListener);

    /*
     * Generate the appropriate events to activate and deactivate
     * the embedded frame. This is needed in order to make keyboard
     * focus work properly for lightweights.
     */
    Listener listener =
        new Listener() {
          public void handleEvent(Event e) {
            switch (e.type) {
              case SWT.Dispose:
                Shell shell = parent.getShell();
                shell.removeListener(SWT.Deiconify, shellListener);
                shell.removeListener(SWT.Iconify, shellListener);
                parent.setVisible(false);
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        try {
                          frame.dispose();
                        } catch (Throwable e) {
                        }
                      }
                    });
                break;
              case SWT.FocusIn:
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        if (frame.isActive()) return;
                        try {
                          Class clazz = frame.getClass();
                          Method method =
                              clazz.getMethod(
                                  "synthesizeWindowActivation", new Class[] {boolean.class});
                          if (method != null)
                            method.invoke(frame, new Object[] {new Boolean(true)});
                        } catch (Throwable e) {
                          e.printStackTrace();
                        }
                      }
                    });
                break;
              case SWT.Deactivate:
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        if (!frame.isActive()) return;
                        try {
                          Class clazz = frame.getClass();
                          Method method =
                              clazz.getMethod(
                                  "synthesizeWindowActivation", new Class[] {boolean.class});
                          if (method != null)
                            method.invoke(frame, new Object[] {new Boolean(false)});
                        } catch (Throwable e) {
                          e.printStackTrace();
                        }
                      }
                    });
                break;
            }
          }
        };

    parent.addListener(SWT.FocusIn, listener);
    parent.addListener(SWT.Deactivate, listener);
    parent.addListener(SWT.Dispose, listener);

    parent
        .getDisplay()
        .asyncExec(
            new Runnable() {
              public void run() {
                if (parent.isDisposed()) return;
                final Rectangle clientArea = parent.getClientArea();
                EventQueue.invokeLater(
                    new Runnable() {
                      public void run() {
                        frame.setSize(clientArea.width, clientArea.height);
                        frame.validate();

                        // Bug in Cocoa AWT? For some reason the frame isn't showing up on first
                        // draw.
                        // Toggling visibility seems to be the only thing that works.
                        frame.setVisible(false);
                        frame.setVisible(true);
                      }
                    });
              }
            });

    return frame;
  }