workspace/libs/taskmanager/strategies/manualsortingstrategy.cpp

   1 /*****************************************************************
   2
   3 Copyright 2008 Christian Mollekopf <chrigi_1@hotmail.com>
   4
   5 Permission is hereby granted, free of charge, to any person obtaining a copy
   6 of this software and associated documentation files (the "Software"), to deal
   7 in the Software without restriction, including without limitation the rights
   8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 copies of the Software, and to permit persons to whom the Software is
  10 furnished to do so, subject to the following conditions:
  11
  12 The above copyright notice and this permission notice shall be included in
  13 all copies or substantial portions of the Software.
  14
  15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  18 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21
  22 ******************************************************************/
  23
  24 #include "manualsortingstrategy.h"
  25
  26 #include "taskitem.h"
  27 #include "taskgroup.h"
  28 #include "taskmanager.h"
  29
  30 #include <QMap>
  31 #include <QtAlgorithms>
  32
  33 #include <KDebug>
  34
  35
  36 namespace TaskManager
  37 {
  38
  39 class ManualSortingStrategy::Private
  40 {
  41 public:
  42     Private()
  43     {
  44     }
  45     GroupManager *groupingStrategy;
  46
  47     itemHashTable *managedItems;
  48     desktopHashTable *desktops;
  49     int oldDesktop;
  50 };
  51
  52
  53 ManualSortingStrategy::ManualSortingStrategy(GroupManager *parent)
  54     :AbstractSortingStrategy(parent),
  55     d(new Private)
  56 {
  57     d->groupingStrategy = parent;
  58     setType(GroupManager::ManualSorting);
  59
  60     d->desktops = new desktopHashTable();
  61     //TODO add a screenHashTable
  62     d->oldDesktop = TaskManager::TaskManager::self()->currentDesktop();
  63
  64     if (d->groupingStrategy->showOnlyCurrentDesktop()) {
  65         d->desktops->insert(TaskManager::TaskManager::self()->currentDesktop(), new itemHashTable());
  66         d->managedItems = d->desktops->value(TaskManager::TaskManager::self()->currentDesktop());
  67     } else {
  68         d->desktops->insert(0,new itemHashTable());
  69         d->managedItems = d->desktops->value(0);
  70     }
  71 }
  72
  73 ManualSortingStrategy::~ManualSortingStrategy()
  74 {
  75     if (d->desktops) {
  76         foreach(itemHashTable *table, *d->desktops) {
  77             if (table) {
  78                 delete table;
  79             }
  80         }
  81         delete d->desktops;
  82     }
  83     delete d;
  84 }
  85
  86 void ManualSortingStrategy::storePositions(TaskGroup *group)
  87 {
  88     Q_ASSERT(group);
  89     for(int i = 0; i < group->members().size(); i++) {
  90         AbstractGroupableItem *item = group->members().at(i);
  91         Q_ASSERT(item);
  92         if (item->isGroupItem()) {
  93             d->managedItems->insert(item, i);
  94             storePositions(dynamic_cast<TaskGroup*>(item));
  95         } else {
  96             d->managedItems->insert(item, i);
  97         }
  98         kDebug() << item << i;
  99     }
 100 }
 101
 102 //Here we should store all infos about the sorting
 103 void ManualSortingStrategy::desktopChanged(int newDesktop)
 104 {
 105     kDebug() << "Desktop changed" << d->oldDesktop << newDesktop;
 106     //store positions of old desktop
 107     d->managedItems->clear();
 108     storePositions(d->groupingStrategy->rootGroup());
 109     d->desktops->insert(d->oldDesktop, d->managedItems);
 110
 111     //load positions of new desktop
 112     if (d->desktops->contains(newDesktop)) {
 113         d->managedItems = d->desktops->value(newDesktop);
 114     } else {
 115         d->managedItems = new itemHashTable();
 116     }
 117
 118     d->oldDesktop = newDesktop;
 119 }
 120
 121 void ManualSortingStrategy::sortItems(ItemList &items)
 122 {
 123     kDebug();
 124
 125     QMap<int, AbstractGroupableItem*> map;
 126     int i = 1000;
 127     foreach (AbstractGroupableItem *item, items) {
 128         if (d->managedItems->contains(item)) {
 129             map.insertMulti(d->managedItems->value(item), item);
 130         } else {//make sure unkwown items are appended
 131             kDebug() << "item not found in managedItems";
 132             map.insertMulti(i, item);
 133             i++;
 134         }
 135     }
 136     items.clear();
 137     items = map.values();
 138 }
 139
 140 //since we have no way of knowing about a desktop change before it happens we have to track every single change....
 141 void ManualSortingStrategy::handleItem(AbstractItemPtr item)
 142 {
 143     if (d->managedItems->contains(item)) {
 144         if (item->isGroupItem()) {
 145             handleGroup(qobject_cast<TaskGroup*>(item));
 146         }
 147         check(item);
 148     } else {
 149         Q_ASSERT(item->parentGroup());
 150         d->managedItems->insert(item, item->parentGroup()->members().indexOf(item));
 151     }
 152 }
 153
 154 } //namespace
 155
 156 #include "manualsortingstrategy.moc"
 157