/*

* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Interface for displays, which can show images.

*

*/

#ifndef MMMADISPLAY_H

#define MMMADISPLAY_H

//  FORWARD DECLARATIONS

class CFbsBitmap;

class MMMADisplayWindow;

class MUiEventConsumer;

//  CLASS DEFINITION

/*

-----------------------------------------------------------------------------

    DESCRIPTION

    Interface for displays, which can show images. Display properties

    can be changed through this interface.

-----------------------------------------------------------------------------

*/

NONSHARABLE_CLASS(MMMADisplay)

{

public:

    /**

      * Describes the currently running thread type.

      */

    enum TThreadType

    {

        EMmaThread = 0, // MMAPI thread

        EUiThread  = 1  // UI thread (LCDUI or ESWT)

    };

    /**

     * Display can be deleted through this interface.

     */

    virtual ~MMMADisplay()

    {

    };

    /**

     * Draws bitmap. Implementation may ignore <code>aBitmap</code>

     * parameter and implements own drawing procedure. This method must also redraw

     * the display if needed.

     *

     * @param aBitmap Bitmap to be drawn.

     */

    virtual void DrawFrameL(const CFbsBitmap* aBitmap) = 0;

    /**

     * Getter for display's size.

     *

     * @return Display size.

     */

    virtual TSize DisplaySize() = 0;

    /**

     * Sets display size or leaves if not supported or

     * size cannot be changed.

     *

     * @param aSize New size for the display.

     */

    virtual void SetDisplaySizeL(const TSize& aSize) = 0;

    /**

     * Sets display location.

     *

     * @param aPosition New position for the display.

     */

    virtual void SetDisplayLocationL(const TPoint& aPosition) = 0;

    /**

     * Returns position where display is drawn.

     *

     * @return Display location.

     */

    virtual TPoint DisplayLocation() = 0;

    /**

     * Sets display fullscreen mode on/off.

     *

     * @param aFullScreen Fullscreen mode.

     */

    virtual void SetFullScreenL(TBool aFullScreen) = 0;

    /**

     * Sets display visible or hides it.

     *

     * @param aVisible ETrue if display is visible,

     *                 EFalse if display is invisible.

     */

    virtual void SetVisible(TBool aVisible) = 0;

    /**

     * Called when source size is changed. This is also called when

     * source size is available for the first time.

     *

     * @param aSourceSize New content's size.

     */

    virtual void SourceSizeChanged(const TSize& aSourceSize) = 0;

    /**

     * Sets display's window. Ownership is not transfered.

     *

     * @param aWindow New window used for drawing.

     **/

    virtual void SetWindowL(MMMADisplayWindow* aWindow) = 0;

    /**

     * Getter for window.

     *

     * @return Display's window or NULL if not set.

     */

    virtual MMMADisplayWindow* Window() = 0;

    /**

     * Returns visibility of the display.

     *

     * @return ETrue if display is visible,

     *         EFalse if display is invisible.

     */

    virtual TBool IsVisible() = 0;

    /**

     * Returns fullscreen state of the display.

     *

     * @return ETrue if display is fullscreen,

     *         EFalse if display is not fullscreen.

     */

    virtual TBool IsFullScreen() = 0;

    /**

     *Sets the foreground state of the midlet

     *

     * @param ETrue if midlet is in foreground,

     *         EFalse if midlet is in background

     */

    virtual void SetForeground(TBool aForeground, TBool aUseEventServer) = 0;

    /**

     * Gets notification that there is container to draw assigned

     *

     * @return ETrue if container have been set

     *         EFalse if container is not set

     */

    virtual TBool HasContainer() = 0;

    /**

     * Gets resources necessary to start DirectScreenAccess

     * Doesn't run in mmapi event server thread!

     *

     * @since S60 v5.0

     * @param "aConsumer" A consumer of callback

     * @param "aThreadType" Indicates the thread type (UI or MMAPI)

     */

    virtual void UIGetDSAResources(

        MUiEventConsumer& aConsumer,

        TThreadType aThreadType) = 0;

    /**

     * Invokes a callback in UI thread

     *

     * @since S60 v5.0

     * @param "aConsumer" A consumer of callback

     * @param "aCallbackId" A number identifying the callback

     */

    virtual void UIGetCallback(

        MUiEventConsumer& aConsumer,

        TInt aCallbackId) = 0;

};

#endif // MMMADISPLAY_H