1 /*

     2 * Copyright (c) 2009,2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 package javax.microedition.lcdui;

    18 

    19 import org.eclipse.swt.widgets.Control;

    20 import org.eclipse.swt.graphics.Rectangle;

    21 import org.eclipse.swt.internal.qt.graphics.GraphicsContext;

    22 import org.eclipse.swt.widgets.Internal_PackageSupport;

    23 

    24 final class CanvasBuffer extends Buffer

    25 {

    26 

    27     private Canvas host;

    28 

    29     CanvasBuffer(Canvas canvas, Control ctrl)

    30     {

    31         super();

    32         setControlBounds(ctrl);

    33         host = canvas;

    34     }

    35 

    36     int getHostType()

    37     {

    38         return HOST_TYPE_CANVAS;

    39     }

    40 

    41     void setupWindowSurface()

    42     {

    43         if(super.windowSurface == null)

    44         {

    45             super.windowSurface = Internal_PackageSupport.getWindowsurface(host.getShell());

    46         }

    47     }

    48 

    49     Object getHost()

    50     {

    51         return host;

    52     }

    53 

    54     void bindToHost(GraphicsContext gc)

    55     {

    56         gc.bindTarget(super.windowSurface);

    57     }

    58 }