author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 16 Apr 2010 14:59:52 +0300 | |
changeset 15 | cf5481c2bc0b |
child 17 | 69946d1824c4 |
permissions | -rw-r--r-- |
15
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: VideoListData class declaration* |
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*/ |
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|
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#include <mpxmediageneraldefs.h> |
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#include <mpxmedia.h> |
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#include <vcxmyvideosdefs.h> |
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#include "videodatacontainer.h" |
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#include "videocollectionutils.h" |
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|
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/** |
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* global qHash function required fo creating hash values for TMPXItemId -keys |
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*/ |
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inline uint qHash(TMPXItemId key) |
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{ |
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QPair<uint, uint> keyPair(key.iId1, key.iId2); |
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|
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return qHash(keyPair); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// VideoDataContainer |
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// ----------------------------------------------------------------------------- |
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// |
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VideoDataContainer::VideoDataContainer() |
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{ |
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// NOP |
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} |
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// ----------------------------------------------------------------------------- |
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// VideoDataContainer |
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// ----------------------------------------------------------------------------- |
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// |
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VideoDataContainer::~VideoDataContainer() |
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{ |
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clear(); |
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clearRemoved(); |
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} |
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// ----------------------------------------------------------------------------- |
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// clear |
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// ----------------------------------------------------------------------------- |
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// |
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void VideoDataContainer::clear() |
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{ |
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QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator i = mMediaData.begin(); |
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while(i != mMediaData.end()) |
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{ |
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delete (*i).second; |
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++i; |
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} |
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mMediaData.clear(); |
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mMediaIds.clear(); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// remove |
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// ----------------------------------------------------------------------------- |
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// |
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void VideoDataContainer::remove(const TMPXItemId &id) |
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{ |
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QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator removeIter = mMediaData.find(id); |
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if(removeIter == mMediaData.end()) |
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{ |
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return; |
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} |
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QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator hashIter; |
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mMediaIds.removeAt(removeIter->first); |
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// sync item indexes whose ids exist in id- list after |
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// recently removoved. |
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decIndexesAfter(removeIter->first); |
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|
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delete removeIter->second; |
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mMediaData.erase(removeIter); |
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} |
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// ----------------------------------------------------------------------------- |
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// append |
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// ----------------------------------------------------------------------------- |
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// |
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void VideoDataContainer::append(CMPXMedia *media) |
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{ |
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TMPXItemId mediaId = TMPXItemId::InvalidId(); |
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VideoCollectionUtils::instance().mediaValue<TMPXItemId>(media, KMPXMediaGeneralId, mediaId ); |
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|
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if(mediaId == TMPXItemId::InvalidId()) |
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{ |
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// could not get id or id does not match ==> NOP |
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return; |
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} |
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QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator iter = mMediaData.find(mediaId); |
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105 |
// if item is in the removal list, not allowed to append |
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106 |
if(mRemovedMedia.contains(mediaId)) |
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107 |
{ |
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108 |
delete media; |
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109 |
return; |
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110 |
} |
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111 |
|
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112 |
// if item exist, do not add into container |
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113 |
if(iter != mMediaData.end()) |
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114 |
{ |
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115 |
return; |
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116 |
} |
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117 |
mMediaIds.append(mediaId); |
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mMediaData[mediaId] = qMakePair( mMediaIds.count() - 1, media); |
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119 |
} |
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120 |
|
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121 |
|
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122 |
// ----------------------------------------------------------------------------- |
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123 |
// fromIndex |
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124 |
// ----------------------------------------------------------------------------- |
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125 |
// |
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126 |
CMPXMedia* VideoDataContainer::fromIndex(int index) const |
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127 |
{ |
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128 |
if(index >= 0 && index < mMediaIds.count() && mMediaData.contains(mMediaIds[index])) |
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129 |
{ |
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return (mMediaData.find(mMediaIds[index]))->second; |
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131 |
} |
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132 |
return 0; |
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133 |
} |
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134 |
|
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135 |
|
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136 |
// ----------------------------------------------------------------------------- |
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137 |
// indexOfId |
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138 |
// ----------------------------------------------------------------------------- |
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139 |
// |
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140 |
int VideoDataContainer::indexOfId(const TMPXItemId &id) const |
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141 |
{ |
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142 |
QHash<TMPXItemId, QPair<int, CMPXMedia*> >::const_iterator iter = mMediaData.find(id); |
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143 |
if( iter != mMediaData.constEnd()) |
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144 |
{ |
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145 |
return iter->first; |
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146 |
} |
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147 |
|
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148 |
return -1; |
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149 |
} |
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150 |
|
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151 |
// ----------------------------------------------------------------------------- |
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152 |
// idFromIndex |
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153 |
// ----------------------------------------------------------------------------- |
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154 |
// |
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155 |
TMPXItemId VideoDataContainer::idFromIndex(int index) const |
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156 |
{ |
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157 |
if(index >= 0 && index < mMediaIds.count()) |
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158 |
{ |
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159 |
return mMediaIds[index]; |
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160 |
} |
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161 |
return TMPXItemId::InvalidId(); |
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162 |
} |
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163 |
|
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164 |
// ----------------------------------------------------------------------------- |
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165 |
// count |
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166 |
// ----------------------------------------------------------------------------- |
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167 |
// |
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168 |
int VideoDataContainer::count() const |
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169 |
{ |
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170 |
return mMediaData.count(); |
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171 |
} |
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|
172 |
|
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173 |
// ----------------------------------------------------------------------------- |
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174 |
// decIndexesAfter |
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175 |
// ----------------------------------------------------------------------------- |
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176 |
// |
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177 |
void VideoDataContainer::decIndexesAfter(int fromIndex) |
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178 |
{ |
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179 |
int count = mMediaIds.count(); |
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180 |
QMultiHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator hashIter; |
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181 |
for(int i = fromIndex; i < count; ++i) |
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182 |
{ |
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183 |
hashIter = mMediaData.find(mMediaIds[i]); |
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184 |
if(hashIter != mMediaData.end()) |
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185 |
{ |
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186 |
hashIter->first--; |
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187 |
} |
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188 |
} |
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189 |
} |
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190 |
|
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191 |
// ----------------------------------------------------------------------------- |
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192 |
// markItemsRemoved |
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193 |
// ----------------------------------------------------------------------------- |
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194 |
// |
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195 |
TMPXItemId VideoDataContainer::markItemRemoved(const int &itemIndex) |
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196 |
{ |
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197 |
// for all provided indexes: |
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198 |
// - get item address from mMediaData |
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199 |
// - get item index from mMediaData |
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200 |
// - remove item from mMediaData, do not deallocate object |
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201 |
// - remove item's id from mMediaIds -list |
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202 |
// - append item into mRemovedMedia |
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203 |
// - append item's id into returned id -list |
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204 |
TMPXItemId id = TMPXItemId::InvalidId(); |
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205 |
CMPXMedia *media = 0; |
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206 |
id = idFromIndex(itemIndex); |
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207 |
media = fromIndex(itemIndex); |
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208 |
if(id == TMPXItemId::InvalidId() || !media) |
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209 |
{ |
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210 |
return id; |
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211 |
} |
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if(!mRemovedMedia.contains(id)) |
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{ |
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mRemovedMedia[id] = media; |
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} |
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mMediaData.remove(id); |
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mMediaIds.removeAt(itemIndex); |
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decIndexesAfter(itemIndex); |
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return id; |
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} |
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221 |
|
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// ----------------------------------------------------------------------------- |
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// clearRemoved |
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// ----------------------------------------------------------------------------- |
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// |
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int VideoDataContainer::clearRemoved(QList<TMPXItemId> *itemIds) |
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{ |
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int count = 0; |
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QList<TMPXItemId> ids; |
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230 |
|
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QList<TMPXItemId>::const_iterator iterEnd; |
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if(!itemIds) |
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{ |
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ids = mRemovedMedia.keys(); |
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} |
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else |
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237 |
{ |
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ids = *itemIds; |
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} |
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QList<TMPXItemId>::const_iterator idIter = ids.constBegin(); |
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QHash<TMPXItemId, CMPXMedia*>::iterator iter; |
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while(idIter != ids.constEnd()) |
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243 |
{ |
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iter = mRemovedMedia.find((*idIter)); |
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if(iter != mRemovedMedia.end()) |
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{ |
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delete (*iter); |
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mRemovedMedia.remove((*idIter)); |
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count++; |
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} |
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++idIter; |
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} |
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return count; |
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} |
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255 |
|
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// ----------------------------------------------------------------------------- |
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// restoreRemovedItems |
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// ----------------------------------------------------------------------------- |
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// |
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int VideoDataContainer::restoreRemovedItems(QList<TMPXItemId> *itemIds) |
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261 |
{ |
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262 |
|
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int count = 0; |
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QList<TMPXItemId> ids; |
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265 |
|
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QList<TMPXItemId>::const_iterator iterEnd; |
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if(!itemIds) |
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268 |
{ |
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ids = mRemovedMedia.keys(); |
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} |
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else |
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272 |
{ |
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ids = *itemIds; |
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} |
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275 |
|
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QList<TMPXItemId>::const_iterator idIter = ids.constBegin(); |
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QHash<TMPXItemId, CMPXMedia*>::iterator iter; |
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while(idIter != ids.constEnd()) |
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279 |
{ |
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iter = mRemovedMedia.find((*idIter)); |
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if(iter != mRemovedMedia.constEnd() && !mMediaData.contains(iter.key())) |
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282 |
{ |
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// append data to actual containers and remove item from deleted hash |
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mMediaIds.append(iter.key()); |
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mMediaData[iter.key()] = qMakePair(mMediaIds.count() - 1, iter.value()); |
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mRemovedMedia.remove((*idIter)); |
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|
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count++; |
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288 |
} |
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++idIter; |
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290 |
} |
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return count; |
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292 |
} |
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|
293 |
|
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// ----------------------------------------------------------------------------- |
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// getRemovedMedia |
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// ----------------------------------------------------------------------------- |
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297 |
// |
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CMPXMedia* VideoDataContainer::getRemovedMedia(TMPXItemId itemId) |
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|
299 |
{ |
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QHash<TMPXItemId, CMPXMedia*>::const_iterator itemIter = |
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301 |
mRemovedMedia.constFind(itemId); |
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if(itemIter != mRemovedMedia.constEnd()) |
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|
303 |
{ |
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304 |
return itemIter.value(); |
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|
305 |
} |
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|
306 |
return 0; |
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307 |
} |
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|
308 |
|
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309 |
// end of file |