|
1 /* |
|
2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: VideoListData class declaration* |
|
15 */ |
|
16 |
|
17 #include <mpxmediageneraldefs.h> |
|
18 #include <mpxmedia.h> |
|
19 #include <vcxmyvideosdefs.h> |
|
20 #include "videodatacontainer.h" |
|
21 #include "videocollectionutils.h" |
|
22 |
|
23 /** |
|
24 * global qHash function required fo creating hash values for TMPXItemId -keys |
|
25 */ |
|
26 inline uint qHash(TMPXItemId key) |
|
27 { |
|
28 QPair<uint, uint> keyPair(key.iId1, key.iId2); |
|
29 |
|
30 return qHash(keyPair); |
|
31 } |
|
32 |
|
33 |
|
34 // ----------------------------------------------------------------------------- |
|
35 // VideoDataContainer |
|
36 // ----------------------------------------------------------------------------- |
|
37 // |
|
38 VideoDataContainer::VideoDataContainer() |
|
39 { |
|
40 // NOP |
|
41 } |
|
42 |
|
43 // ----------------------------------------------------------------------------- |
|
44 // VideoDataContainer |
|
45 // ----------------------------------------------------------------------------- |
|
46 // |
|
47 VideoDataContainer::~VideoDataContainer() |
|
48 { |
|
49 clear(); |
|
50 clearRemoved(); |
|
51 } |
|
52 |
|
53 // ----------------------------------------------------------------------------- |
|
54 // clear |
|
55 // ----------------------------------------------------------------------------- |
|
56 // |
|
57 void VideoDataContainer::clear() |
|
58 { |
|
59 QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator i = mMediaData.begin(); |
|
60 while(i != mMediaData.end()) |
|
61 { |
|
62 delete (*i).second; |
|
63 ++i; |
|
64 } |
|
65 mMediaData.clear(); |
|
66 mMediaIds.clear(); |
|
67 } |
|
68 |
|
69 // ----------------------------------------------------------------------------- |
|
70 // remove |
|
71 // ----------------------------------------------------------------------------- |
|
72 // |
|
73 void VideoDataContainer::remove(const TMPXItemId &id) |
|
74 { |
|
75 QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator removeIter = mMediaData.find(id); |
|
76 if(removeIter == mMediaData.end()) |
|
77 { |
|
78 return; |
|
79 } |
|
80 QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator hashIter; |
|
81 mMediaIds.removeAt(removeIter->first); |
|
82 // sync item indexes whose ids exist in id- list after |
|
83 // recently removoved. |
|
84 decIndexesAfter(removeIter->first); |
|
85 |
|
86 delete removeIter->second; |
|
87 mMediaData.erase(removeIter); |
|
88 } |
|
89 |
|
90 // ----------------------------------------------------------------------------- |
|
91 // append |
|
92 // ----------------------------------------------------------------------------- |
|
93 // |
|
94 void VideoDataContainer::append(CMPXMedia *media) |
|
95 { |
|
96 TMPXItemId mediaId = TMPXItemId::InvalidId(); |
|
97 VideoCollectionUtils::instance().mediaValue<TMPXItemId>(media, KMPXMediaGeneralId, mediaId ); |
|
98 |
|
99 if(mediaId == TMPXItemId::InvalidId()) |
|
100 { |
|
101 // could not get id or id does not match ==> NOP |
|
102 return; |
|
103 } |
|
104 QHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator iter = mMediaData.find(mediaId); |
|
105 // if item is in the removal list, not allowed to append |
|
106 if(mRemovedMedia.contains(mediaId)) |
|
107 { |
|
108 delete media; |
|
109 return; |
|
110 } |
|
111 |
|
112 // if item exist, do not add into container |
|
113 if(iter != mMediaData.end()) |
|
114 { |
|
115 return; |
|
116 } |
|
117 mMediaIds.append(mediaId); |
|
118 mMediaData[mediaId] = qMakePair( mMediaIds.count() - 1, media); |
|
119 } |
|
120 |
|
121 |
|
122 // ----------------------------------------------------------------------------- |
|
123 // fromIndex |
|
124 // ----------------------------------------------------------------------------- |
|
125 // |
|
126 CMPXMedia* VideoDataContainer::fromIndex(int index) const |
|
127 { |
|
128 if(index >= 0 && index < mMediaIds.count() && mMediaData.contains(mMediaIds[index])) |
|
129 { |
|
130 return (mMediaData.find(mMediaIds[index]))->second; |
|
131 } |
|
132 return 0; |
|
133 } |
|
134 |
|
135 |
|
136 // ----------------------------------------------------------------------------- |
|
137 // indexOfId |
|
138 // ----------------------------------------------------------------------------- |
|
139 // |
|
140 int VideoDataContainer::indexOfId(const TMPXItemId &id) const |
|
141 { |
|
142 QHash<TMPXItemId, QPair<int, CMPXMedia*> >::const_iterator iter = mMediaData.find(id); |
|
143 if( iter != mMediaData.constEnd()) |
|
144 { |
|
145 return iter->first; |
|
146 } |
|
147 |
|
148 return -1; |
|
149 } |
|
150 |
|
151 // ----------------------------------------------------------------------------- |
|
152 // idFromIndex |
|
153 // ----------------------------------------------------------------------------- |
|
154 // |
|
155 TMPXItemId VideoDataContainer::idFromIndex(int index) const |
|
156 { |
|
157 if(index >= 0 && index < mMediaIds.count()) |
|
158 { |
|
159 return mMediaIds[index]; |
|
160 } |
|
161 return TMPXItemId::InvalidId(); |
|
162 } |
|
163 |
|
164 // ----------------------------------------------------------------------------- |
|
165 // count |
|
166 // ----------------------------------------------------------------------------- |
|
167 // |
|
168 int VideoDataContainer::count() const |
|
169 { |
|
170 return mMediaData.count(); |
|
171 } |
|
172 |
|
173 // ----------------------------------------------------------------------------- |
|
174 // decIndexesAfter |
|
175 // ----------------------------------------------------------------------------- |
|
176 // |
|
177 void VideoDataContainer::decIndexesAfter(int fromIndex) |
|
178 { |
|
179 int count = mMediaIds.count(); |
|
180 QMultiHash<TMPXItemId, QPair<int, CMPXMedia*> >::iterator hashIter; |
|
181 for(int i = fromIndex; i < count; ++i) |
|
182 { |
|
183 hashIter = mMediaData.find(mMediaIds[i]); |
|
184 if(hashIter != mMediaData.end()) |
|
185 { |
|
186 hashIter->first--; |
|
187 } |
|
188 } |
|
189 } |
|
190 |
|
191 // ----------------------------------------------------------------------------- |
|
192 // markItemsRemoved |
|
193 // ----------------------------------------------------------------------------- |
|
194 // |
|
195 TMPXItemId VideoDataContainer::markItemRemoved(const int &itemIndex) |
|
196 { |
|
197 // for all provided indexes: |
|
198 // - get item address from mMediaData |
|
199 // - get item index from mMediaData |
|
200 // - remove item from mMediaData, do not deallocate object |
|
201 // - remove item's id from mMediaIds -list |
|
202 // - append item into mRemovedMedia |
|
203 // - append item's id into returned id -list |
|
204 TMPXItemId id = TMPXItemId::InvalidId(); |
|
205 CMPXMedia *media = 0; |
|
206 id = idFromIndex(itemIndex); |
|
207 media = fromIndex(itemIndex); |
|
208 if(id == TMPXItemId::InvalidId() || !media) |
|
209 { |
|
210 return id; |
|
211 } |
|
212 if(!mRemovedMedia.contains(id)) |
|
213 { |
|
214 mRemovedMedia[id] = media; |
|
215 } |
|
216 mMediaData.remove(id); |
|
217 mMediaIds.removeAt(itemIndex); |
|
218 decIndexesAfter(itemIndex); |
|
219 return id; |
|
220 } |
|
221 |
|
222 // ----------------------------------------------------------------------------- |
|
223 // clearRemoved |
|
224 // ----------------------------------------------------------------------------- |
|
225 // |
|
226 int VideoDataContainer::clearRemoved(QList<TMPXItemId> *itemIds) |
|
227 { |
|
228 int count = 0; |
|
229 QList<TMPXItemId> ids; |
|
230 |
|
231 QList<TMPXItemId>::const_iterator iterEnd; |
|
232 if(!itemIds) |
|
233 { |
|
234 ids = mRemovedMedia.keys(); |
|
235 } |
|
236 else |
|
237 { |
|
238 ids = *itemIds; |
|
239 } |
|
240 QList<TMPXItemId>::const_iterator idIter = ids.constBegin(); |
|
241 QHash<TMPXItemId, CMPXMedia*>::iterator iter; |
|
242 while(idIter != ids.constEnd()) |
|
243 { |
|
244 iter = mRemovedMedia.find((*idIter)); |
|
245 if(iter != mRemovedMedia.end()) |
|
246 { |
|
247 delete (*iter); |
|
248 mRemovedMedia.remove((*idIter)); |
|
249 count++; |
|
250 } |
|
251 ++idIter; |
|
252 } |
|
253 return count; |
|
254 } |
|
255 |
|
256 // ----------------------------------------------------------------------------- |
|
257 // restoreRemovedItems |
|
258 // ----------------------------------------------------------------------------- |
|
259 // |
|
260 int VideoDataContainer::restoreRemovedItems(QList<TMPXItemId> *itemIds) |
|
261 { |
|
262 |
|
263 int count = 0; |
|
264 QList<TMPXItemId> ids; |
|
265 |
|
266 QList<TMPXItemId>::const_iterator iterEnd; |
|
267 if(!itemIds) |
|
268 { |
|
269 ids = mRemovedMedia.keys(); |
|
270 } |
|
271 else |
|
272 { |
|
273 ids = *itemIds; |
|
274 } |
|
275 |
|
276 QList<TMPXItemId>::const_iterator idIter = ids.constBegin(); |
|
277 QHash<TMPXItemId, CMPXMedia*>::iterator iter; |
|
278 while(idIter != ids.constEnd()) |
|
279 { |
|
280 iter = mRemovedMedia.find((*idIter)); |
|
281 if(iter != mRemovedMedia.constEnd() && !mMediaData.contains(iter.key())) |
|
282 { |
|
283 // append data to actual containers and remove item from deleted hash |
|
284 mMediaIds.append(iter.key()); |
|
285 mMediaData[iter.key()] = qMakePair(mMediaIds.count() - 1, iter.value()); |
|
286 mRemovedMedia.remove((*idIter)); |
|
287 count++; |
|
288 } |
|
289 ++idIter; |
|
290 } |
|
291 return count; |
|
292 } |
|
293 |
|
294 // ----------------------------------------------------------------------------- |
|
295 // getRemovedMedia |
|
296 // ----------------------------------------------------------------------------- |
|
297 // |
|
298 CMPXMedia* VideoDataContainer::getRemovedMedia(TMPXItemId itemId) |
|
299 { |
|
300 QHash<TMPXItemId, CMPXMedia*>::const_iterator itemIter = |
|
301 mRemovedMedia.constFind(itemId); |
|
302 if(itemIter != mRemovedMedia.constEnd()) |
|
303 { |
|
304 return itemIter.value(); |
|
305 } |
|
306 return 0; |
|
307 } |
|
308 |
|
309 // end of file |