src/client/bufferviewoverlay.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  19  ***************************************************************************/
  20
  21 #include "bufferviewoverlay.h"
  22
  23 #include <QEvent>
  24
  25 #include "bufferviewconfig.h"
  26 #include "client.h"
  27 #include "clientbufferviewmanager.h"
  28 #include "networkmodel.h"
  29
  30 const int BufferViewOverlay::_updateEventId = QEvent::registerEventType();
  31
  32 BufferViewOverlay::BufferViewOverlay(QObject *parent)
  33   : QObject(parent),
  34     _aboutToUpdate(false),
  35     _uninitializedViewCount(0),
  36     _allowedBufferTypes(0),
  37     _minimumActivity(0)
  38 {
  39 }
  40
  41 void BufferViewOverlay::addView(int viewId) {
  42   if(_bufferViewIds.contains(viewId))
  43     return;
  44
  45   BufferViewConfig *config = Client::bufferViewManager()->bufferViewConfig(viewId);
  46   if(!config) {
  47     qDebug() << "BufferViewOverlay::addView(): no such buffer view:" << viewId;
  48     return;
  49   }
  50
  51   _bufferViewIds << viewId;
  52   _uninitializedViewCount++;
  53   if(config->isInitialized()) {
  54     viewInitialized(config);
  55   } else {
  56     disconnect(config, SIGNAL(initDone()), this, SLOT(viewInitialized()));
  57     // we use a queued connection here since manipulating the connection list of a sending object
  58     // doesn't seem to be such a good idea while executing a connected slots.
  59     connect(config, SIGNAL(initDone()), this, SLOT(viewInitialized()), Qt::QueuedConnection);
  60   }
  61 }
  62
  63 void BufferViewOverlay::removeView(int viewId) {
  64   if(!_bufferViewIds.contains(viewId))
  65     return;
  66
  67   _bufferViewIds.remove(viewId);
  68   BufferViewConfig *config = Client::bufferViewManager()->bufferViewConfig(viewId);
  69   if(config)
  70     disconnect(config, 0, this, 0);
  71
  72   // update initialized State:
  73   bool wasInitialized = isInitialized();
  74   _uninitializedViewCount = 0;
  75   QSet<int>::iterator viewIter = _bufferViewIds.begin();
  76   while(viewIter != _bufferViewIds.end()) {
  77     config = Client::bufferViewManager()->bufferViewConfig(*viewIter);
  78     if(!config) {
  79       viewIter = _bufferViewIds.erase(viewIter);
  80     } else {
  81       if(!config->isInitialized())
  82         _uninitializedViewCount++;
  83       viewIter++;
  84     }
  85   }
  86
  87   update();
  88   if(!wasInitialized && isInitialized())
  89     emit initDone();
  90 }
  91
  92 void BufferViewOverlay::viewInitialized(BufferViewConfig *config) {
  93   if(!config) {
  94     qWarning() << "BufferViewOverlay::viewInitialized() received invalid view!";
  95     return;
  96   }
  97   disconnect(config, SIGNAL(initDone()), this, SLOT(viewInitialized()));
  98
  99   connect(config, SIGNAL(configChanged()), this, SLOT(update()));
 100 //   connect(config, SIGNAL(networkIdSet(const NetworkId &)), this, SLOT(update()));
 101 //   connect(config, SIGNAL(sortAlphabeticallySet(bool)), this, SLOT(update()));
 102 //   connect(config, SIGNAL(allowedBufferTypesSet(int)), this, SLOT(update()));
 103 //   connect(config, SIGNAL(minimumActivitySet(int)), this, SLOT(update()));
 104 //   connect(config, SIGNAL(bufferListSet()), this, SLOT(update()));
 105 //   connect(config, SIGNAL(bufferAdded(const BufferId &, int)), this, SLOT(update()));
 106 //   connect(config, SIGNAL(bufferRemoved(const BufferId &)), this, SLOT(update()));
 107 //   connect(config, SIGNAL(bufferPermanentlyRemoved(const BufferId &)), this, SLOT(update()));
 108
 109   // check if the view was removed in the meantime...
 110   if(_bufferViewIds.contains(config->bufferViewId()))
 111     update();
 112
 113   _uninitializedViewCount--;
 114   if(isInitialized())
 115     emit initDone();
 116 }
 117
 118 void BufferViewOverlay::viewInitialized() {
 119   BufferViewConfig *config = qobject_cast<BufferViewConfig *>(sender());
 120   Q_ASSERT(config);
 121
 122   viewInitialized(config);
 123 }
 124
 125 void BufferViewOverlay::update() {
 126   if(_aboutToUpdate) {
 127     return;
 128   }
 129   _aboutToUpdate = true;
 130   QCoreApplication::postEvent(this, new QEvent((QEvent::Type)_updateEventId));
 131 }
 132
 133 void BufferViewOverlay::updateHelper() {
 134   if(!_aboutToUpdate)
 135     return;
 136
 137   bool changed = false;
 138
 139   int allowedBufferTypes = 0;
 140   int minimumActivity = -1;
 141   QSet<NetworkId> networkIds;
 142   QSet<BufferId> buffers;
 143   QSet<BufferId> removedBuffers;
 144   QSet<BufferId> tempRemovedBuffers;
 145
 146   if(Client::bufferViewManager()) {
 147     BufferViewConfig *config = 0;
 148     QSet<int>::const_iterator viewIter;
 149     for(viewIter = _bufferViewIds.constBegin(); viewIter != _bufferViewIds.constEnd(); viewIter++) {
 150       config = Client::bufferViewManager()->bufferViewConfig(*viewIter);
 151       if(!config)
 152         continue;
 153
 154       allowedBufferTypes |= config->allowedBufferTypes();
 155       if(minimumActivity == -1 || config->minimumActivity() < minimumActivity)
 156         minimumActivity = config->minimumActivity();
 157
 158       networkIds << config->networkId();
 159
 160
 161       // we have to apply several filters before we can add a buffer to a category (visible, removed, ...)
 162       buffers += filterBuffersByConfig(config->bufferList(), config);
 163       tempRemovedBuffers += filterBuffersByConfig(config->temporarilyRemovedBuffers().toList(), config);
 164       removedBuffers += config->removedBuffers();
 165     }
 166
 167     // prune the sets from overlap
 168     QSet<BufferId> availableBuffers = Client::networkModel()->allBufferIds().toSet();
 169
 170     buffers.intersect(availableBuffers);
 171
 172     tempRemovedBuffers.intersect(availableBuffers);
 173     tempRemovedBuffers.subtract(buffers);
 174
 175     removedBuffers.intersect(availableBuffers);
 176     removedBuffers.subtract(tempRemovedBuffers);
 177     removedBuffers.subtract(buffers);
 178   }
 179
 180   changed |= (allowedBufferTypes != _allowedBufferTypes);
 181   changed |= (minimumActivity != _minimumActivity);
 182   changed |= (networkIds != _networkIds);
 183   changed |= (buffers != _buffers);
 184   changed |= (removedBuffers != _removedBuffers);
 185   changed |= (tempRemovedBuffers != _tempRemovedBuffers);
 186
 187   _allowedBufferTypes = allowedBufferTypes;
 188   _minimumActivity = minimumActivity;
 189   _networkIds = networkIds;
 190   _buffers = buffers;
 191   _removedBuffers = removedBuffers;
 192   _tempRemovedBuffers = tempRemovedBuffers;
 193
 194   _aboutToUpdate = false;
 195
 196   if(changed)
 197     emit hasChanged();
 198 }
 199
 200 QSet<BufferId> BufferViewOverlay::filterBuffersByConfig(const QList<BufferId> &buffers, const BufferViewConfig *config) {
 201   Q_ASSERT(config);
 202
 203   QSet<BufferId> bufferIds;
 204   BufferInfo bufferInfo;
 205   foreach(BufferId bufferId, buffers) {
 206     bufferInfo = Client::networkModel()->bufferInfo(bufferId);
 207     if(!(bufferInfo.type() & config->allowedBufferTypes()))
 208       continue;
 209     if(config->networkId().isValid() && bufferInfo.networkId() != config->networkId())
 210       continue;
 211     bufferIds << bufferId;
 212   }
 213
 214   return bufferIds;
 215 }
 216
 217
 218 void BufferViewOverlay::customEvent(QEvent *event) {
 219   if(event->type() == _updateEventId) {
 220     updateHelper();
 221   }
 222 }
 223
 224 bool BufferViewOverlay::allNetworks() {
 225   updateHelper();
 226   return _networkIds.contains(NetworkId());
 227 }
 228
 229 const QSet<NetworkId> &BufferViewOverlay::networkIds() {
 230   updateHelper();
 231   return _networkIds;
 232 }
 233
 234 const QSet<BufferId> &BufferViewOverlay::bufferIds() {
 235   updateHelper();
 236   return _buffers;
 237 }
 238
 239 const QSet<BufferId> &BufferViewOverlay::removedBufferIds() {
 240   updateHelper();
 241   return _removedBuffers;
 242 }
 243
 244 const QSet<BufferId> &BufferViewOverlay::tempRemovedBufferIds() {
 245   updateHelper();
 246   return _tempRemovedBuffers;
 247 }
 248
 249 int BufferViewOverlay::allowedBufferTypes() {
 250   updateHelper();
 251   return _allowedBufferTypes;
 252 }
 253
 254 int BufferViewOverlay::minimumActivity() {
 255   updateHelper();
 256   return _minimumActivity;
 257 }