javauis/mmapi_akn/baseline/inc/mmmadisplay.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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branchRCL_3
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Revision: v2.2.9 Kit: 201033
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/*
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Interface for displays, which can show images.
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*
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*/
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#ifndef MMMADISPLAY_H
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#define MMMADISPLAY_H
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//  FORWARD DECLARATIONS
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class CFbsBitmap;
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class MMMADisplayWindow;
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class MUiEventConsumer;
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//  CLASS DEFINITION
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/*
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-----------------------------------------------------------------------------
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    DESCRIPTION
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    Interface for displays, which can show images. Display properties
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    can be changed through this interface.
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-----------------------------------------------------------------------------
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*/
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NONSHARABLE_CLASS(MMMADisplay)
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{
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public:
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    /**
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      * Describes the currently running thread type.
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      */
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    enum TThreadType
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    {
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        EMmaThread = 0, // MMAPI thread
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        EUiThread  = 1  // UI thread (LCDUI or ESWT)
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    };
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    /**
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     * Display can be deleted through this interface.
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     */
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    virtual ~MMMADisplay()
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    {
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    };
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    /**
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     * Draws bitmap. Implementation may ignore <code>aBitmap</code>
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     * parameter and implements own drawing procedure. This method must also redraw
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     * the display if needed.
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     *
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     * @param aBitmap Bitmap to be drawn.
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     */
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    virtual void DrawFrameL(const CFbsBitmap* aBitmap) = 0;
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    /**
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     * Getter for display's size.
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     *
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     * @return Display size.
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     */
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    virtual TSize DisplaySize() = 0;
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    /**
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     * Sets display size or leaves if not supported or
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     * size cannot be changed.
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     *
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     * @param aSize New size for the display.
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     */
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    virtual void SetDisplaySizeL(const TSize& aSize) = 0;
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    /**
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     * Sets display location.
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     *
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     * @param aPosition New position for the display.
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     */
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    virtual void SetDisplayLocationL(const TPoint& aPosition) = 0;
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    /**
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     * Returns position where display is drawn.
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     *
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     * @return Display location.
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     */
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    virtual TPoint DisplayLocation() = 0;
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    /**
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     * Sets display fullscreen mode on/off.
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     *
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     * @param aFullScreen Fullscreen mode.
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     */
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    virtual void SetFullScreenL(TBool aFullScreen) = 0;
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    /**
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     * Sets display visible or hides it.
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     *
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     * @param aVisible ETrue if display is visible,
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     *                 EFalse if display is invisible.
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     */
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    virtual void SetVisible(TBool aVisible) = 0;
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    /**
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     * Called when source size is changed. This is also called when
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     * source size is available for the first time.
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     *
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     * @param aSourceSize New content's size.
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     */
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    virtual void SourceSizeChanged(const TSize& aSourceSize) = 0;
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    /**
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     * Sets display's window. Ownership is not transfered.
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     *
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     * @param aWindow New window used for drawing.
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     **/
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    virtual void SetWindowL(MMMADisplayWindow* aWindow) = 0;
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    /**
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     * Getter for window.
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     *
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     * @return Display's window or NULL if not set.
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     */
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    virtual MMMADisplayWindow* Window() = 0;
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    /**
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     * Returns visibility of the display.
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     *
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     * @return ETrue if display is visible,
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     *         EFalse if display is invisible.
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     */
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    virtual TBool IsVisible() = 0;
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    /**
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     * Returns fullscreen state of the display.
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     *
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     * @return ETrue if display is fullscreen,
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     *         EFalse if display is not fullscreen.
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     */
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    virtual TBool IsFullScreen() = 0;
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    /**
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     *Sets the foreground state of the midlet
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     *
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     * @param ETrue if midlet is in foreground,
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     *         EFalse if midlet is in background
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     */
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    virtual void SetForeground(TBool aForeground, TBool aUseEventServer) = 0;
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    /**
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     * Gets notification that there is container to draw assigned
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     *
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     * @return ETrue if container have been set
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     *         EFalse if container is not set
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     */
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    virtual TBool HasContainer() = 0;
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    /**
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     * Gets resources necessary to start DirectScreenAccess
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     * Doesn't run in mmapi event server thread!
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     *
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     * @since S60 v5.0
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     * @param "aConsumer" A consumer of callback
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     * @param "aThreadType" Indicates the thread type (UI or MMAPI)
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     */
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    virtual void UIGetDSAResources(
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        MUiEventConsumer& aConsumer,
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        TThreadType aThreadType) = 0;
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    /**
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     * Invokes a callback in UI thread
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     *
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     * @since S60 v5.0
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     * @param "aConsumer" A consumer of callback
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     * @param "aCallbackId" A number identifying the callback
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     */
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    virtual void UIGetCallback(
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        MUiEventConsumer& aConsumer,
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        TInt aCallbackId) = 0;
24
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    /**
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     * Fixes screen UI orientation.
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     *
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     * @param aFix If ETrue, the UI orientation will be fixed.
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     *                If EFalse, the standard UI orientation is restored.        
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     */
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    virtual void FixUIOrientation(TBool aFix) = 0;
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};
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#endif // MMMADISPLAY_H