1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __HLPPICT_H__

    17 #define __HLPPICT_H__

    18 

    19 // System includes

    20 #include <e32std.h>

    21 #include <d32dbms.h>

    22 #include <s32file.h>

    23 #include <badesca.h>

    24 #include <gdi.h> // for CPicture

    25 

    26 // User includes

    27 #include "HLPMODEL.H"

    28 

    29 // Classes Referenced

    30 class CHlpDatabase;

    31 

    32 // Constants

    33 const TUid KUidHelpImage = { 0x100068D4 };

    34 

    35 

    36 

    37 //

    38 // ----> CHlpPicture (header)

    39 //

    40 class CHlpPicture : public CPicture

    41 	/**

    42 	This class provides the means for restoring bitmaps from a multiple

    43 	bitmap file, scaling them and drawing them on the screen.

    44 	@publishedAll

    45 	@class CHlpPicture

    46 	@since 7.0

    47 	@see CPicture, CStreamStore, TStreamId, CHlpModel,

    48 				  CGraphicsContext, RWriteStream, CHlpDatabase

    49 	*/

    50 	{

    51 //

    52 public: // CONSTRUCT / DESTRUCT

    53 //

    54 	static CHlpPicture* NewLC(const CStreamStore& aStore, TStreamId aStreamId, CHlpDatabase& aDatabase, CHlpModel& aHlpModel);

    55 	~CHlpPicture();

    56 	void HandleHelpModelDestruction();

    57 

    58 //

    59 public: // FROM CPicture

    60 //

    61 	void Draw(CGraphicsContext& aGc, const TPoint& aTopLeft, const TRect& aClipRect, MGraphicsDeviceMap* aMap) const;

    62 	void ExternalizeL(RWriteStream& aStream) const;

    63 	void GetCropInTwips(TMargins& aMargins) const;

    64 	void GetOriginalSizeInTwips(TSize& aSize) const;

    65 	void SetScaleFactor(TInt aScaleFactorWidth, TInt aScaleFactorHeight);

    66 	void SetCropInTwips(const TMargins& aMargins);

    67 	TInt ScaleFactorWidth() const;

    68 	TInt ScaleFactorHeight() const;

    69 

    70 //

    71 public: // Handles changes in zoom size

    72 //

    73 	void HandleZoomChangedL(THlpZoomState aNewZoom);

    74 

    75 //

    76 private: // INTERNAL CONSTRUCT

    77 //

    78 	CHlpPicture(CHlpDatabase& aDatabase, CHlpModel& aHlpModel);

    79 	void ConstructL(const CStreamStore& aStore, TStreamId aStreamId);

    80 

    81 //

    82 private: // INTERNAL METHODS

    83 //

    84 	void RestoreL(const CStreamStore& aStore, TStreamId aStreamId, CHlpDatabase& aDatabase, THlpZoomState aZoomState);

    85 

    86 //

    87 private: // MEMBER DATA

    88 //

    89 

    90 	// Variable to represent the bitmap to be restored from the image table

    91 	CFbsBitmap* iImage;

    92 

    93 	// Reference to a 'CHlpDatabase' object

    94 	CHlpDatabase& iDatabase;

    95 

    96 	// Stores the ID of every image that is accessed

    97 	TInt iImageId;

    98 

    99 	// Pointer to a 'hlpmodel' object

   100 	CHlpModel* iHlpModel;

   101 

   102 	// Stores the number of bitmaps per picture

   103 	TInt iImageCountForPicture;

   104 	};

   105 

   106 

   107 

   108 #endif