vcs.maemo.org Git - situare/blob - src/map/frienditemshandler.cpp

   1 /*
   2     Situare - A location system for Facebook
   3     Copyright (C) 2010  Ixonos Plc. Authors:
   4
   5         Sami Rämö - sami.ramo@ixonos.com
   6
   7     Situare is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU General Public License
   9     version 2 as published by the Free Software Foundation.
  10
  11     Situare is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with Situare; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  19     USA.
  20 */
  21
  22
  23 #include <QDebug>
  24
  25 #include "friendgroupitem.h"
  26 #include "friendlocationitem.h"
  27 #include "mapengine.h"
  28 #include "mapscene.h"
  29 #include "user/user.h"
  30
  31 #include "frienditemshandler.h"
  32
  33 FriendItemsHandler::FriendItemsHandler(MapScene *mapScene, QObject *parent)
  34     : QObject(parent),
  35       m_mapScene(mapScene)
  36 {
  37 }
  38
  39 FriendItemsHandler::~FriendItemsHandler()
  40 {
  41     qDeleteAll(m_friendItems.begin(),m_friendItems.end());
  42     m_friendItems.clear();
  43 }
  44
  45 void FriendItemsHandler::checkFriendsForCollisions()
  46 {
  47     qWarning() << __PRETTY_FUNCTION__;
  48
  49 //    foreach(FriendGroupItem *item, m_friendGroupItems) {
  50 //        m_friendGroupItems.removeAll(item);
  51 //        m_mapScene->removeItem(item);
  52 //    }
  53
  54     int lastItem = m_friendItems.size() - 1;
  55     for (int checking = 0; checking <= lastItem; checking++) {
  56         QRect beginItemRect = m_friendItems.at(checking)->sceneTransformedBoundingRect(m_zoomLevel);
  57
  58         // don't check items which are already part of a group (and thus unvisible)
  59         if (m_friendItems.at(checking)->isPartOfGroup())
  60             continue;
  61
  62         // check all other items
  63         for (int another = 0; another <= lastItem; another++)
  64         {
  65             // don't check against itself
  66             if (checking == another)
  67                 continue;
  68
  69             // don't check against items which are already part of a group (and thus unvisible)
  70             if (m_friendItems.at(another)->isPartOfGroup())
  71                 continue;
  72
  73             // does items collide
  74             QRect iterItemRect = m_friendItems.at(another)->sceneTransformedBoundingRect(m_zoomLevel);
  75             if (beginItemRect.intersects(iterItemRect)) {
  76                 qWarning() << __PRETTY_FUNCTION__ << "collision found" << checking << another;
  77                 FriendGroupItem *group = new FriendGroupItem();
  78                 m_friendGroupItems.append(group);
  79                 group->setPos(m_friendItems.at(checking)->pos());
  80                 group->joinFriend(m_friendItems.at(checking));
  81                 group->joinFriend(m_friendItems.at(another));
  82                 m_mapScene->addItem(group);
  83                 break;
  84             }
  85         }
  86     }
  87 }
  88
  89 void FriendItemsHandler::checkGroupsForCollisions()
  90 {
  91
  92 }
  93
  94 void FriendItemsHandler::cleanOldFriendData(const QList<User *> &friendsList)
  95 {
  96     bool friendGone = true;
  97
  98     for (int i=0; i<m_friendItems.count(); i++) {
  99
 100         for (int j=0; j<friendsList.count(); j++) {
 101
 102             if (m_friendItems.at(i)->userId() == friendsList.at(j)->userId())
 103                 friendGone = false;
 104         }
 105
 106         if (friendGone) {
 107             m_mapScene->removeItem(m_friendItems.at(i));
 108             m_friendItems.removeAt(i);
 109         }
 110
 111         friendGone = true;
 112     }
 113 }
 114
 115 void FriendItemsHandler::dropOutOfGroupFriends()
 116 {
 117     // loop through all group items and drop friends which doesn't collide anymore
 118     foreach (FriendGroupItem *group, m_friendGroupItems)
 119         group->dropFriends(m_zoomLevel);
 120 }
 121
 122 void FriendItemsHandler::receiveFriendLocations(QList<User *> &friendsList)
 123 {
 124     qWarning() << __PRETTY_FUNCTION__;
 125
 126     static int receiveFriendsLocationsCounter = 0;
 127
 128     if (receiveFriendsLocationsCounter == 0) {
 129         receiveFriendsLocationsCounter++;
 130         updateFriendItemList(friendsList);
 131     }
 132
 133     else {
 134         /// @todo VILLE: New friends are never added to list & scene
 135         receiveFriendsLocationsCounter++;
 136         updateFriendLocationsAndImages(friendsList);
 137         cleanOldFriendData(friendsList);
 138     }
 139 }
 140
 141 void FriendItemsHandler::refactorFriendItems(int zoomLevel)
 142 {
 143     m_zoomLevel = zoomLevel;
 144
 145     dropOutOfGroupFriends();
 146     checkGroupsForCollisions();
 147     checkFriendsForCollisions();
 148 }
 149
 150 void FriendItemsHandler::updateFriendItemList(const QList<User *> &friendsList)
 151 {
 152     qDebug() << __PRETTY_FUNCTION__;
 153
 154     qDeleteAll(m_friendItems.begin(),m_friendItems.end());
 155     m_friendItems.clear();
 156
 157
 158     for (int i=0; i<friendsList.count(); i++) {
 159         FriendLocationItem *friendLocation
 160                 = new FriendLocationItem(friendsList.at(i)->profileImage(),
 161                                          friendsList.at(i)->coordinates(),0);
 162
 163         friendLocation->setUserId(friendsList.at(i)->userId());
 164         m_friendItems.append(friendLocation);
 165         m_mapScene->addItem(friendLocation);
 166
 167         //refactorFriendItems(m_zoomLevel);
 168     }
 169 }
 170
 171 void FriendItemsHandler::updateFriendLocationsAndImages(const QList<User *> &friendsList)
 172 {
 173     for (int i=0; i<friendsList.count(); i++) {
 174
 175         for (int j=0; j<m_friendItems.count(); j++) {
 176
 177             if (m_friendItems.at(j)->userId() == friendsList.at(i)->userId()) {
 178
 179                 if (m_friendItems.at(j)->position()
 180                     != MapEngine::convertLatLonToSceneCoordinate(friendsList.at(i)->coordinates()))
 181                     m_friendItems.at(j)->setPosition(friendsList.at(i)->coordinates());
 182
 183                 if (m_friendItems.at(j)->profileImageUrl()
 184                     != friendsList.at(i)->profileImageUrl()) {
 185                     m_friendItems.at(j)->setPixmap(friendsList.at(i)->profileImage());
 186                 }
 187             }
 188         }
 189     }
 190 }
 191
 192