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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 |
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20 #ifndef __CFILTERICLSOURCE_H__ |
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21 #define __CFILTERICLSOURCE_H__ |
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22 |
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23 #include <e32base.h> |
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24 #include "MImageFilter.h" |
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25 |
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26 class CFbsBitmap; |
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27 class CImageDecoder; |
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28 |
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29 // Loader observer |
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30 //============================================================================= |
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31 class TBlockEntry |
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32 { |
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33 public: |
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34 inline ~TBlockEntry() |
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35 { |
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36 delete[] iData; |
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37 } |
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38 public: |
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39 TRect iRect; |
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40 TUint32 * iData; |
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41 }; |
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42 |
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43 |
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44 // Loader observer |
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45 //============================================================================= |
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46 class MLoaderObserver |
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47 { |
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48 public: |
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49 virtual void OperationReady (const TInt aError) = 0; |
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50 }; |
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51 |
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52 |
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53 // CActive derived loader class |
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54 //============================================================================= |
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55 class CImageLoader : public CActive |
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56 { |
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57 |
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58 public: |
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59 CImageLoader (MLoaderObserver * aObserver); |
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60 virtual ~CImageLoader(); |
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61 void LoadBitmapL (TDesC & aFileName, CFbsBitmap * iBitmap); |
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62 |
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63 protected: |
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64 virtual void RunL(); |
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65 virtual void DoCancel(); |
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66 |
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67 private: |
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68 CFbsBitmap * iBitmap; |
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69 CImageDecoder * iDecoder; |
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70 MLoaderObserver * iObserver; |
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71 }; |
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72 |
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73 |
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74 // ICL source filter |
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75 //============================================================================= |
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76 class CFilterIclSource |
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77 : public CBase |
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78 , public MImageFilter |
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79 , public MLoaderObserver |
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80 { |
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81 |
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82 public: |
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83 |
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84 IMPORT_C static TInt Create(); |
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85 virtual ~CFilterIclSource(); |
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86 |
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87 public: // MImageFilter |
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88 virtual TRect Rect(); |
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89 virtual TReal Scale(); |
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90 virtual TSize ViewPortSize(); |
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91 virtual TBlock * GetBlockL ( const TRect & aRect ); |
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92 virtual void SetParent( MImageFilter* aParent ); |
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93 virtual void SetChild( MImageFilter* aChild ); |
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94 virtual TInt CmdL( const TDesC16& aCmd ); |
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95 virtual const char* Type(); |
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96 |
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97 public: // MLoaderObserver |
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98 virtual void OperationReady (const TInt aError); |
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99 |
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100 protected: |
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101 |
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102 |
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103 private: |
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104 static CFilterIclSource* NewL(); |
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105 CFilterIclSource(); |
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106 void ConstructL(); |
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107 void LoadRectL(); |
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108 |
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109 private: // Data |
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110 |
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111 enum TOutputState |
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112 { |
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113 EDirect, |
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114 EBuffer, |
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115 } iOutputState; |
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116 |
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117 TRect iRect; |
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118 TRect iScaledRect; |
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119 CFbsBitmap * iBitmap; |
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120 TInt iWStep; |
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121 CImageLoader * iLoader; |
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122 |
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123 // destination size |
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124 TSize iDestSize; |
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125 // destination buffer |
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126 TUint32 * iDestBuffer; |
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127 // relative scale |
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128 TReal iRelScale; |
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129 |
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130 TBlockEntry ** iBlockBuffer; |
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131 TSize iSize; |
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132 TSize iSizeInBlocks; |
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133 TUint32 iLastBlock; |
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134 TInt * iIndexMap; |
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135 TInt iOldestBlock; |
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136 TInt iBlockBufferSize; |
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137 TFileName iFileName; |
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138 }; |
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139 |
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140 |
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141 #endif |