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1 /* |
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2 * Copyright (c) 2007 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: Utility class to rotate bitmaps* |
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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 // INCLUDE FILES |
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20 #include <e32base.h> |
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21 #include <e32std.h> |
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22 #include "CamBmpRotatorAo.h" |
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23 #include "camlogging.h" |
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24 |
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25 // CONSTANTS |
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26 |
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27 // MACROS |
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28 |
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29 // LOCAL CONSTANTS AND MACROS |
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30 |
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31 // MODULE DATA STRUCTURES |
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32 |
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33 // LOCAL FUNCTION PROTOTYPES |
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34 |
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35 // FORWARD DECLARATIONS |
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36 |
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37 // ============================= LOCAL FUNCTIONS =============================== |
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38 |
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39 // ============================ MEMBER FUNCTIONS =============================== |
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40 |
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41 // ----------------------------------------------------------------------------- |
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42 // CCamBmpRotatorAo::CCamBmpRotatorAo |
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43 // C++ constructor |
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44 // ----------------------------------------------------------------------------- |
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45 // |
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46 CCamBmpRotatorAo::CCamBmpRotatorAo() : CActive( EPriorityHigh ) |
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47 { |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CCamBmpRotatorAo::ConstructL |
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52 // Second phase constructor. |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 void CCamBmpRotatorAo::ConstructL() |
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56 { |
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57 iRotator = CBitmapRotator::NewL(); |
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58 CActiveScheduler::Add( this ); |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CCamBmpRotatorAo::NewL |
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63 // Two-phased constructor. |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 CCamBmpRotatorAo* CCamBmpRotatorAo::NewL() |
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67 { |
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68 CCamBmpRotatorAo* self = new( ELeave ) CCamBmpRotatorAo(); |
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69 CleanupStack::PushL( self ); |
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70 self->ConstructL(); |
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71 CleanupStack::Pop( self ); |
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72 return self; |
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73 } |
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74 |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CCamBmpRotatorAo::~CCamBmpRotatorAo() |
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78 // Destructor |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 CCamBmpRotatorAo::~CCamBmpRotatorAo() |
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82 { |
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83 PRINT( _L("Camera => ~CCamBmpRotatorAo") ); |
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84 if ( IsActive() ) |
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85 { |
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86 Cancel(); |
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87 } |
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88 |
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89 delete iRotator; |
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90 iQueue.ResetAndDestroy(); |
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91 PRINT( _L("Camera <= ~CCamBmpRotatorAo") ); |
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92 } |
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93 |
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94 |
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95 |
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96 // ----------------------------------------------------------------------------- |
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97 // CCamBmpRotatorAo::AddToQueueL |
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98 // Adds the specified bitmap/rotator to the queue of items to be rotated |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 void CCamBmpRotatorAo::AddToQueueL( CFbsBitmap* aBitmap, CBitmapRotator::TRotationAngle aAngle ) |
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102 { |
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103 CRotateTask* task = new ( ELeave ) CRotateTask; |
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104 CleanupStack::PushL( task ); |
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105 task->iBitmap = aBitmap; |
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106 task->iAngle = aAngle; |
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107 User::LeaveIfError( iQueue.Append( task ) ); |
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108 CleanupStack::Pop( task ); |
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109 } |
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110 |
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111 // ----------------------------------------------------------------------------- |
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112 // CCamBmpRotatorAo::RunL |
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113 // Called when a rotation operation is completed (or cancelled) |
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114 // ----------------------------------------------------------------------------- |
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115 // |
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116 void CCamBmpRotatorAo::RunL() |
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117 { |
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118 // Pop the completed image from the queue. |
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119 CRotateTask* task = iQueue[0]; |
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120 iQueue.Remove( 0 ); |
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121 delete task; // NOTE: no need to delete bitmap (as not owned) |
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122 |
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123 // If rotate completed successfully... |
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124 // ... and there are more left on the queue... |
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125 // ... then start the next rotate |
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126 if ( iStatus.Int() == KErrNone ) |
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127 { |
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128 if ( iQueue.Count() > 0 ) |
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129 { |
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130 StartNextRotate(); |
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131 } |
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132 } |
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133 else |
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134 { |
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135 // Rotation failed; cancel further rotation attempts in |
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136 // the queue |
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137 iQueue.ResetAndDestroy(); |
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138 } |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // CCamBmpRotatorAo::DoCancel |
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143 // Called to cancel an outstanding rotation operation |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 void CCamBmpRotatorAo::DoCancel() |
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147 { |
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148 iRotator->Cancel(); |
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149 } |
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150 |
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151 // ----------------------------------------------------------------------------- |
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152 // CCamBmpRotatorAo::StartNextRotate |
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153 // Called to start the next queued rotation task. If no tasks are queued, does nothing |
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154 // ----------------------------------------------------------------------------- |
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155 // |
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156 void CCamBmpRotatorAo::StartNextRotate() |
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157 { |
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158 if ( iQueue.Count() == 0 ) |
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159 return; |
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160 |
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161 CRotateTask* task = iQueue[0]; |
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162 |
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163 iRotator->Rotate( &iStatus, *task->iBitmap, task->iAngle ); |
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164 SetActive(); |
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165 } |
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166 |
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167 // End of File |