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1 /* |
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2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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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 "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 * |
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14 * Description: Inline functions for media object |
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15 * |
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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 // ----------------------------------------------------------------------------- |
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21 // The value for a specific attribute |
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22 // ----------------------------------------------------------------------------- |
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23 // |
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24 template<typename T> |
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25 inline T CMPXMedia::ValueTObjectL(const TMPXAttribute& aAttribute) const |
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26 { |
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27 TPckgBuf<T> v; |
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28 TMPXAttributeType type = GetValue(aAttribute, v); |
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29 ASSERT(type == EMPXTypeTObject || type == EMPXTypeTInt || type == EMPXTypeUnknown); |
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30 return v();// creates empty object if none exists! |
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31 } |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // The value for a specific attribute |
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35 // ----------------------------------------------------------------------------- |
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36 // |
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37 template<typename C> |
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38 inline C* CMPXMedia::ValueNoNewLCObjectL(const TMPXAttribute& aAttribute) const |
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39 { |
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40 ASSERT(iData&&iClientHandle); |
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41 if (Type(aAttribute)==EMPXTypeError) |
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42 return NULL; |
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43 TInt i=iData->Index(iClientHandle,aAttribute); |
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44 TPtrC8 data=iData->Value(iClientHandle,i); |
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45 C* obj=NULL; |
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46 TInt s=data.Size(); |
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47 if (s) |
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48 { |
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49 CBufBase* b=CBufFlat::NewL(s); |
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50 CleanupStack::PushL(b); |
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51 b->ResizeL(s); |
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52 b->Write(0,data,s); |
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53 ::CreateFromBufferL(*b,obj); |
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54 CleanupStack::PopAndDestroy(b); |
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55 } |
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56 else |
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57 { |
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58 // This construction is not always possible (e.g. CDesCArray) |
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59 // obj=new(ELeave)C; |
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60 } |
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61 return obj; |
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62 } |
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63 |
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64 // ----------------------------------------------------------------------------- |
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65 // The value for a specific attribute |
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66 // ----------------------------------------------------------------------------- |
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67 // |
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68 template<typename C> |
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69 inline C* CMPXMedia::ValueCObjectL(const TMPXAttribute& aAttribute) const |
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70 { |
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71 ASSERT(iData&&iClientHandle); |
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72 if (Type(aAttribute)==EMPXTypeError) |
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73 return NULL; |
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74 TInt i=iData->Index(iClientHandle,aAttribute); |
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75 TPtrC8 data=iData->Value(iClientHandle,i); |
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76 return ValueL<C>(data); |
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77 } |
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78 |
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79 // ----------------------------------------------------------------------------- |
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80 // CMPXMedia::ValueL |
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81 // ----------------------------------------------------------------------------- |
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82 // |
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83 template<typename T> |
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84 inline T* CMPXMedia::ValueL(const TDesC8& aData) const |
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85 { |
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86 T* obj=NULL; |
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87 TInt s=aData.Size(); |
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88 if (s) |
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89 { |
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90 CBufBase* b=CBufFlat::NewL(s); |
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91 CleanupStack::PushL(b); |
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92 b->ResizeL(s); |
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93 b->Write(0,aData,s); |
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94 ::NewFromBufferL<T>(*b,obj); |
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95 CleanupStack::PopAndDestroy(b); |
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96 } |
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97 return obj; |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // The value for a specific attribute |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 template<typename T> |
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105 inline T* CMPXMedia::Value(const TMPXAttribute& aAttribute) const |
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106 { |
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107 if (Type(aAttribute)==EMPXTypeError) |
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108 return NULL; |
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109 return (T*)ValuePtr(aAttribute); |
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110 } |
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111 |
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112 // ----------------------------------------------------------------------------- |
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113 // Add a new attribute value to this object, or modifies existing |
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114 // value if already present |
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115 // ----------------------------------------------------------------------------- |
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116 // |
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117 template<typename T> |
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118 inline void CMPXMedia::SetTObjectValueL(const TMPXAttribute& aAttribute,T aValue) |
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119 { |
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120 TPtrC8 value((TUint8*)&aValue,sizeof(T)); |
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121 SetValueL(aAttribute,value,EMPXTypeTObject); |
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122 } |
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123 |
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124 // ----------------------------------------------------------------------------- |
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125 // Add a new attribute value to this object, or modifies existing |
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126 // value if already present |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 template<typename C> |
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130 inline void CMPXMedia::SetNoNewLCObjectL( |
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131 const TMPXAttribute& aAttribute,C* aValue) |
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132 { |
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133 SetCObjectValueL(aAttribute,aValue); |
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134 } |
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135 |
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136 // ----------------------------------------------------------------------------- |
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137 // Add a new attribute value to this object, or modifies existing |
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138 // value if already present |
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139 // ----------------------------------------------------------------------------- |
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140 // |
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141 template<typename C> |
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142 inline void CMPXMedia::SetCObjectValueL( |
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143 const TMPXAttribute& aAttribute,C* aValue) |
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144 { |
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145 if (aValue) |
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146 { |
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147 CBufBase* b=NULL; |
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148 ::CreateBufferL(*aValue,b); |
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149 CleanupStack::PushL(b); |
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150 SetValueL(aAttribute,b->Ptr(0),EMPXTypeCObject); |
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151 CleanupStack::PopAndDestroy(b); |
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152 } |
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153 else |
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154 { |
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155 SetValueL(aAttribute,KNullDesC8,EMPXTypeCObject); |
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156 } |
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157 } |
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158 |
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159 // ----------------------------------------------------------------------------- |
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160 // CMPXMedia::Data |
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161 // ----------------------------------------------------------------------------- |
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162 // |
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163 inline TInt CMPXMedia::Data() const |
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164 { |
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165 return static_cast<TInt>(iDataHandle); |
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166 } |
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167 |
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168 // END OF FILE |