1 /*

     2 * Copyright (c) 2008-2009 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:    Texture Manager component

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef C_GLXTEXTUREMANAGER_H

    22 #define C_GLXTEXTUREMANAGER_H

    23 

    24 #include <e32base.h>

    25 #include <gdi.h>

    26 #include <AknsConstants.h>

    27 #include <glxmediaid.h>

    28 #include "mglxskinchangeobserver.h"

    29 

    30 class TAknsItemID;

    31 class CAlfTexture;

    32 class TMPXAttribute;

    33 class CGlxDRMUtility;

    34 class CGlxMedia;

    35 class CAlfImageLoaderUtil;

    36 class CAlfTextureManager;

    37 class MGlxCache;

    38 class TGlxMedia;

    39 class CGlxResolutionUtility;

    40 class CGlxTextureManagerImpl;

    41 class MGlxTextureObserver;

    42 

    43 /**

    44  *  CGlxTextureManager

    45  *

    46  *  Texture Manager component. 

    47  *

    48  * @author David Holland

    49  *

    50  */

    51 NONSHARABLE_CLASS ( CGlxTextureManager ) : public CBase, 

    52                                            public MGlxSkinChangeObserver

    53     {

    54 public:

    55     /**

    56     * Two-phased constructor

    57     * @param aAlfTextureManager The Alf Texture Manager

    58     * @return Constructed object

    59     */

    60     IMPORT_C static CGlxTextureManager* NewL(

    61                                 CAlfTextureManager& aAlfTextureManager);

    62 

    63 

    64     /**

    65     * Destructor

    66     */      

    67     ~CGlxTextureManager();

    68     /**

    69     * Determins if the texture need updating

    70     * @param aMediaId The Id of the media item

    71     * @param aIdSpaceId The Id of the Id space in which the media Id is defined

    72     * @param aRequiredSize The preferred size of the texture

    73     * @return ETrue if the texture needs updating. EFalse if not.

    74     */

    75     IMPORT_C TBool TextureNeedsUpdating(TGlxMedia aMedia, TGlxIdSpaceId aIdSpaceId,

    76                                                 const TSize& aRequiredSize);

    77 

    78  /**

    79      * Requests the best match texture. If it already exists this method does nothing.

    80      * However if it doed not exist it will create it and replace the old texture

    81      * if necessary.

    82      * @param aSize The size of the requested texture

    83      * @param aMedia The TGlxMedia item

    84      * @param aIdSpaceId The Id of the Id space in which the media Id is defined

    85      * @param aObserver Observer for the texture.

    86      * @return Created texture, or NULL if the texture alreay exists

    87      */

    88     

    89     IMPORT_C CAlfTexture& CreateNewTextureForMediaL(

    90             TSize aSize, 

    91             const TGlxMedia& aMedia, 

    92             const TGlxIdSpaceId& aIdSpaceId, 

    93             MGlxTextureObserver* aObserver );

    94     /**

    95     * Create a texture from an Avkon icon

    96     * @param aId The Id associated with the icon in the Skin

    97     * @param aBitmapId The Id associated with the bitmap in the Avkon icon bitmap file

    98     *  The bitmap Id is used if no icon is found for the skin Id

    99     * @param aRequestedSize requested size. If default used size is based on size of original graphic

   100     * @return Created texture

   101     */

   102     IMPORT_C CAlfTexture& CreateAvkonIconTextureL(const TAknsItemID &aID, 

   103                                           TInt aBitmapId,

   104                                           TSize aRequestedSize = TSize(0,0));

   105                                           

   106     /**

   107     * Create a texture from an Avkon icon

   108     * @param aId The Id associated with the icon in the Skin

   109     * @param aBitmapId The Id associated with the bitmap in the Avkon icon bitmap file

   110     *  The bitmap Id is used if no icon is found for the skin Id

   111     * @param aDefaultColor colour use if skin clour not specified or not found

   112     * @param aSkinColorId Id of the skin colour table

   113     * @param aSkinColorIndex Index of the colour in the table

   114     * @param aRequestedSize requested size. If default used size is based on size of original graphic

   115     * @return Created texture

   116     */

   117     IMPORT_C CAlfTexture& CreateColorAvkonIconTextureL(

   118                                                         const TAknsItemID& aID, 

   119                                                         TInt aBitmapId,

   120                                                         TRgb aDefaultColor,

   121                                                         const TAknsItemID& aSkinColorId = KAknsIIDNone,

   122                                                         TInt aSkinColorIndex = 0,

   123                                                         TSize aRequestedSize = TSize(0,0));

   124                                           

   125     

   126     /**

   127     * Create a texture from an Avkon icon

   128     * @param aId The Id associated with the icon in the Skin

   129     * @param aRequestedSize requested size. If default used size is based on size of original graphic

   130     * @return Created texture

   131     */

   132     IMPORT_C CAlfTexture& CreateAvkonIconTextureL(const TAknsItemID &aID, 

   133                                           TSize aRequestedSize = TSize(0,0));

   134     

   135     /**

   136     * Create a texture from an icon within the application

   137     * @param aIconResourceId The Id associated with the icon .mif file

   138     * @param aFilename The full path name of the .mif file

   139     * @param aRequestedSize requested size. If default used size is based on size of original graphic

   140     * @return Created texture

   141     */

   142     IMPORT_C CAlfTexture& CreateIconTextureL(TInt aIconResourceId, 

   143                                            TDesC& aFilename,

   144                                            TSize aRequestedSize = TSize(0,0));

   145 

   146     /**

   147     * Create a texture from an icon within the application, modifying the icon colour

   148     * @param aIconResourceId The Id associated with the icon .mif file

   149     * @param aFilename The full path name of the .mif file

   150     * @param aDefaultColor colour use if skin clour not specified or not found

   151     * @param aSkinColorId Id of the skin colour table

   152     * @param aSkinColorIndex Index of the colour in the table

   153     * @param aRequestedSize requested size. If default used size is based on size of original graphic

   154     * @return Created texture

   155     */

   156     IMPORT_C CAlfTexture& CreateColorIconTextureL(

   157                                TInt aIconResourceId, 

   158                                TDesC& aFilename,

   159                                TRgb  aDefaultColor,

   160                                const TAknsItemID& aSkinColorId = KAknsIIDNone,

   161                                TInt aSkinColorIndex = 0,

   162                                TSize aRequestedSize = TSize(0,0));

   163     

   164     /**

   165     * Create a texture from a bitmap from the attribute of a media item

   166     * @param aMediaId The Id of the media item

   167     * @param aIdSpaceId The Id of the Id space in which the media Id is defined

   168     * @param aRequiredSize The preferred size of the texture

   169     * @param aObserver Observer for the texture.

   170     * @param aScaleGridTnm ETrue if the grid tnm to be scaled else EFalse by default.

   171     * @return Created texture

   172     */

   173     IMPORT_C CAlfTexture& CreateThumbnailTextureL(

   174                 const TGlxMedia& aMedia, const TGlxIdSpaceId& aIdSpaceId,

   175                 const TSize& aRequiredSize, MGlxTextureObserver* aObserver, 

   176                 TBool aScaleGridTnm=EFalse);

   177 

   178     /**

   179     * Create a texture from a zoomed thumbnail attribute of a media item

   180     * @param aMedia The media item

   181     * @param aAttribute Which attribute

   182     * @param aIdSpaceId The Id of the Id space in which the media Id is defined

   183     * @param aTextureId The created texture's id, required when the texture is removed.

   184     * @return Created texture

   185     */

   186     IMPORT_C CAlfTexture& CreateZoomedTextureL(const TGlxMedia& aMedia,

   187                                             const TMPXAttribute& aAttribute,

   188                                             TGlxIdSpaceId aIdSpaceId, MGlxTextureObserver* aObserver);

   189 

   190     /**

   191     * Create an animated texture from a GIF file

   192     * @param aFilename The filename of the GIF file

   193     * @param aSize The size of the GIF file

   194     * @return Created texture: ownership transfered

   195     */

   196     IMPORT_C CAlfTexture& CreateAnimatedGifTextureL( const TDesC& aFilename, 

   197         const TSize& aSize );

   198     

   199     /**

   200      * Creates a flat color texture and returns the reference to it

   201      * Note that the texture ownership stays within texture manager 

   202      * @param aColour the color for the texture

   203      */

   204     IMPORT_C CAlfTexture& CreateFlatColourTextureL( TRgb aColour );

   205     

   206     /**

   207     * Removes the texture if it was created by CreateThumbnailTextureL or

   208     * CreateZoomedTextureL

   209     * @param aTexture The texture to be removed

   210     */

   211     IMPORT_C void RemoveTexture(const CAlfTexture& aTexture);

   212     /**

   213      * Removes the texture if it was created by CreateThumbnailTextureL or

   214      * CreateZoomedTextureL

   215      * @param aTexture The texture to be removed

   216      */

   217     IMPORT_C void RemoveZoomList();

   218     

   219  /**

   220     * Removes the texture if it was created by CreateThumbnailTextureL or

   221     * CreateZoomedTextureL

   222     * @param aMediaId The MediaId to be removed

   223     * @param aAllTexture Flag to remove all textures

   224 	* Bug fix for PKAA-7NRBYZ - added bAllTexture param

   225     */

   226     IMPORT_C void RemoveTexture(const TGlxMediaId& aMediaId, TBool aAllTexture=EFalse);

   227     

   228 public: // from MGlxSkinChangeObserver

   229 

   230     void HandleSkinChanged();    

   231 

   232 

   233 private:

   234        //implementation class

   235        CGlxTextureManagerImpl* iImpl;

   236     };

   237  

   238 

   239 

   240 #endif // C_GLXTEXTUREMANAGER_H