1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (developer.feedback@nokia.com)

     6 **

     7 ** This file is part of the HbServers module of the UI Extensions for Mobile.

     8 **

     9 ** GNU Lesser General Public License Usage

    10 ** This file may be used under the terms of the GNU Lesser General Public

    11 ** License version 2.1 as published by the Free Software Foundation and

    12 ** appearing in the file LICENSE.LGPL included in the packaging of this file.

    13 ** Please review the following information to ensure the GNU Lesser General

    14 ** Public License version 2.1 requirements will be met:

    15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    16 **

    17 ** In addition, as a special exception, Nokia gives you certain additional

    18 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    20 **

    21 ** If you have questions regarding the use of this file, please contact

    22 ** Nokia at developer.feedback@nokia.com.

    23 **

    24 ****************************************************************************/

    25 

    26 #ifndef HBICONDATACACHE_P_H

    27 #define HBICONDATACACHE_P_H

    28 

    29 #include <QHash>

    30 #include "hbthemeserverutils_p.h"

    31 #include "hbiconcacheitemcreator_p.h"

    32 

    33 class HbIconDataCache

    34 {

    35 

    36 public:

    37     HbIconDataCache();

    38     ~HbIconDataCache();

    39     void clear();

    40     HbIconCacheItem* getCacheItem(const HbIconKey &key ,

    41                                   bool isMultiIconPiece = false);

    42     bool insert(const HbIconKey &key,  HbIconCacheItem* item);

    43     bool remove(const HbIconKey&  key);

    44     void setMaxGpuCacheSize(int size);

    45     void setMaxCpuCacheSize(int size);

    46     bool contains(const HbIconKey &key) const;

    47     HbIconCacheItem* value(const HbIconKey &key) const;

    48     bool isItemCachableInGpu(const HbIconCacheItem* item)const;

    49     bool isItemCachableInCpu(const HbIconCacheItem* item)const;

    50     void memoryGood();

    51     void freeGpuRam(int bytes);

    52 

    53 //Debug Code for Test Purpose

    54 #ifdef HB_ICON_CACHE_DEBUG

    55     void cleanVectorLRUList();

    56     void cleanRasterLRUList();

    57     int count() const;

    58     int freeVectorMemory();

    59     int freeRasterMemory();

    60     int lastAddedRefCount();

    61     int lastAddedItemMem();

    62     int lastRemovedItemMem();

    63     int lastRemovedItemRfCount();

    64     bool enableCache(bool cacheIt);

    65     int cacheHitCount();

    66     int cacheMissCount();

    67     int rasterLruCount();

    68     int vectorLruCount();

    69     int gpuLRUSize() const;

    70 #endif

    71 

    72 private:

    73 

    74     void createGpuCacheSpace(int itemCost);

    75     void createCpuCacheSpace(int itemCost);

    76     void updateGpuLruSize(int iconDataCost);

    77     void updateCpuLruSize(int iconDataCost);

    78     //Debug Code for Test Purpose

    79 #ifdef HB_ICON_CACHE_DEBUG

    80     void removeFromCache(const HbIconKey &key, const HbIconCacheItem* releaseItem);

    81     void releaseVectorItem(HbIconCacheItem* releaseItem);

    82     void releaseRasterItem(HbIconCacheItem* releaseItem);

    83 #endif

    84 

    85 private:

    86     QHash<HbIconKey, HbIconCacheItem*> *cache;

    87     HbDLinkList<HbIconCacheItem> gpuLruList;

    88     HbDLinkList<HbIconCacheItem> cpuLruList;

    89     int currentGpuCacheSize;

    90     int currentCpuCacheSize;

    91     int gpuLruListSize;

    92     int cpuLruListSize;

    93     int maxGpuCacheLimit;

    94     int maxCpuCacheLimit;

    95     bool goodMemory;

    96 

    97     //Debug Code for Test Purpose

    98 #ifdef HB_ICON_CACHE_DEBUG

    99     int addedItemRefCount;

   100     int addedItemMem;

   101     int removedItemMem;

   102     int remRfCount;

   103     bool enableCaching;

   104     int cacheHit;

   105     int cacheMiss;

   106     int vectorLruListCount;

   107     int rasterLruListCount;

   108 #endif

   109 };

   110 #endif // HBICONCACHE_P_H

   111