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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: tsmodel.cpp
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*
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*/
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#include "tsmodel.h"
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#include <QVariant>
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#include <QList>
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#include <HbIcon>
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#include <afstorageglobals.h>
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#ifdef Q_OS_SYMBIAN
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#include <XQSettingsManager>
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#include <apaid.h>
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const int TSDeviceDialogUid = 0x2002677F;
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const int ItemsLimit = 0x00000001;
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#endif
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#include "tsmodelitem.h"
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#include "tsentrymodelitem.h"
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#include "tsactivitymodelitem.h"
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#include "tsdataroles.h"
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#include "tstaskchangeinfo.h"
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const int maxItems(10);
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/*!
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\class TsModel
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\ingroup group_tsdevicedialogplugin
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\brief Model storing running application and activieties.
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*/
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/*!
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Constructor
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\param query used to create model
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\param pointer to parent object
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*/
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TsModel::TsModel(TsTaskMonitor &applicationSrv,
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QObject &activitySrv,
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QObject *parent) :
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QAbstractListModel(parent),
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mEntries(),
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mApplicationService(applicationSrv),
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mActivityService(activitySrv),
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mMaxItems(maxItems)
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{
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#ifdef Q_OS_SYMBIAN
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XQSettingsManager *crManager = new XQSettingsManager;
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XQCentralRepositorySettingsKey itemsNumberKey(TSDeviceDialogUid, ItemsLimit);
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QVariant itemsNumberVariant =
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crManager->readItemValue(itemsNumberKey, XQSettingsManager::TypeInt);
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if (!itemsNumberVariant.isNull()) {
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int number = itemsNumberVariant.toInt();
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if (number > 0) {
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mMaxItems = number;
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}
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}
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#endif
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connect(&activitySrv,
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SIGNAL(dataChanged()),
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this,
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SLOT(updateActivities()));
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connect(&applicationSrv,
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SIGNAL(taskListChanged()),
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this,
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SLOT(updateApplications()));
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fullUpdate();
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}
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/*!
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Destructor
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*/
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TsModel::~TsModel()
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{
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qDeleteAll(mEntries);
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}
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/*!
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Returns count of rows in model
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\retval number of rows
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*/
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int TsModel::rowCount(
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const QModelIndex &parent) const
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{
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Q_UNUSED(parent);
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return mEntries.count();
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}
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bool TsModel::insertRows(int row, int count, TsModelItem *item, const QModelIndex &parent)
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{
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beginInsertRows(parent, row, row+count-1);
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mEntries.insert(row, item);
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endInsertRows();
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return true;
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}
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bool TsModel::removeRows(int row, int count, const QModelIndex &parent)
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{
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TsModelItem *oldItem = mEntries.at(row);
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beginRemoveRows(parent, row, row + count - 1);
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mEntries.removeAt(row);
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delete oldItem;
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endRemoveRows();
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return true;
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}
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bool TsModel::moveRows(int oldPosition, int newPosition, const QModelIndex &parent)
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{
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beginMoveRows(parent, oldPosition, oldPosition, parent, newPosition);
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mEntries.move(oldPosition, newPosition);
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endMoveRows();
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return true;
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}
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bool TsModel::updateRows(int row, TsModelItem *item)
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{
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TsModelItem *oldItem = mEntries.at(row);
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mEntries[row] = item;
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delete oldItem;
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emit dataChanged(index(row),index(row));
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return true;
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}
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/*!
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Returns appropiate model's data
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\param index model index
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\param role which data role to return
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\retval models data
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*/
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QVariant TsModel::data(const QModelIndex &index,
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int role) const
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{
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return index.isValid() ? entry(index)->data(role) : QVariant();
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}
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/*!
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Returns maximum anount of data allowed for model
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\retval maximum data count
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*/
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int TsModel::maxRowCount()const
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{
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return mMaxItems;
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}
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/*!
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Activate one of model entries
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*/
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void TsModel::openApplication(const QModelIndex &index)
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{
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if (!index.isValid()) {
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return;
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}
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entry(index)->open();
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}
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/*!
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Close one of moder entries
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*/
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void TsModel::closeApplication(const QModelIndex &index)
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{
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if (!index.isValid() ||
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!entry(index)->data(TsDataRoles::Closable).toBool()) {
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return;
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}
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entry(index)->close();
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}
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/*!
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Updates model with fresh entries
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*/
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void TsModel::updateApplications()
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{
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QList<TsTaskChange> changes(mApplicationService.changeList());
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if (changes.count() == 0) {
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//no applications - only activities on list
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return;
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}
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//check 1st item whether we have cancel change - if so reset model
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if (changes[0].first.changeType() == TsTaskChangeInfo::EChangeCancel) {
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fullUpdate();
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return;
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}
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for (int iter(0); iter < changes.count(); iter++) {
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switch (changes[iter].first.changeType()) {
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case TsTaskChangeInfo::EChangeDelete :
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removeRows(changes[iter].first.oldOffset(), 1);
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//we had max rows before delete - so there is possibility to add
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//one activity
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if(mEntries.count() + 1 == maxRowCount()) {
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beginInsertRows(QModelIndex(), mEntries.count(), mEntries.count());
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getActivities(false);
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endInsertRows();
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}
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break;
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case TsTaskChangeInfo::EChangeInsert :
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insertRows(changes[iter].first.newOffset(), 1,
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new TsEntryModelItem(changes[iter].second));
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//we have too many items - delete some activities if we can
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while(mEntries.count() > maxRowCount() && mActivitiesCount > 0) {
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removeRows(mEntries.count()-1, 1);
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mActivitiesCount--;
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}
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break;
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case TsTaskChangeInfo::EChangeMove :
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moveRows(changes[iter].first.oldOffset(), changes[iter].first.newOffset());
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break;
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case TsTaskChangeInfo::EChangeUpdate :
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updateRows(changes[iter].first.oldOffset(),
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new TsEntryModelItem(changes[iter].second));
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break;
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default:
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break;
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}
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}
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//because delete entries are at end of changelist - iterate backwards
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}
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/*!
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Updates model with fresh entries
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*/
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void TsModel::updateActivities()
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{
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//as for now we need full update when activities change
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fullUpdate();
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}
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/*!
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reset model using full application and activities lists
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*/
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void TsModel::fullUpdate()
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{
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beginResetModel();
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qDeleteAll(mEntries);
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mEntries.clear();
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mActivitiesCount = 0;
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getApplications();
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getActivities();
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endResetModel();
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}
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/*!
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Read list of running applications
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*/
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void TsModel::getApplications()
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{
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//get all running applications and append to entries list
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TsModelItem *entry(0);
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QList< TsTaskChange> tasks(mApplicationService.changeList(true));
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foreach(TsTaskChange taskData, tasks) {
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if (!taskData.second.isNull()) {
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entry = new TsEntryModelItem(taskData.second);
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if (entry) {
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mEntries.append(entry);
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}
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}
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}
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}
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/*!
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Read current activities
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*/
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void TsModel::getActivities(bool fullUpdate)
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{
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//get activities
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int maxActivitiesCount = maxRowCount() - mEntries.count() + mActivitiesCount;
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if (maxActivitiesCount > 0) {
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QList<QVariantHash> activities;
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QMetaObject::invokeMethod(&mActivityService,
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"activitiesList",
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Q_RETURN_ARG(QList<QVariantHash>, activities),
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Q_ARG(int, maxActivitiesCount));
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int iterPos = fullUpdate ? 0 : mActivitiesCount;
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for(int iter(iterPos); iter< activities.count(); iter++) {
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mEntries.append(new TsActivityModelItem(*this, mActivityService, activities[iter]));
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mActivitiesCount++;
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}
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}
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}
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/*!
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Called when some item was changed
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\param itemPtr - address of updated item
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*/
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void TsModel::entryChanged(TsModelItem *itemPtr)
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{
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const int itemIndex = mEntries.indexOf(itemPtr);
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if (itemIndex != -1) {
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emit dataChanged(index(itemIndex, 0), index(itemIndex, 0));
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}
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}
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/*!
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Returns an entry from model
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\param index of entry in model
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\retval pointer to an entry
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*/
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TsModelItem *TsModel::entry(const QModelIndex &index) const
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{
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return mEntries.at(index.row());
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}
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