activityfw/testapplications/activitytestmodel/iconsview.cpp
author Jaakko Haukipuro (Nokia-MS/Oulu) <Jaakko.Haukipuro@nokia.com>
Thu, 16 Sep 2010 12:11:40 +0100
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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:
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*
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*/
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#include "iconsview.h"
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#include <QGraphicsLinearLayout>
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#include <QGraphicsGridLayout>
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#include <QStandardItem>
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#include <QStandardItemModel>
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#include <QSignalMapper>
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#include <hblistwidget.h>
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#include <hblabel.h>
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#include <hbpushbutton.h>
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#include <QDebug>
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IconsView::IconsView(QGraphicsItem *parent) : HbView(parent)
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{
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    setTitle("Icons");
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    mModel = new QStandardItemModel(this);
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    for (int i=1; i<=8; ++i) {
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        addItemToModel(i);
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    }
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    mList = new HbListView(this);
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    mList->setModel(mModel);
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    QGraphicsGridLayout *buttonsLayout = new QGraphicsGridLayout();
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    HbPushButton *addItemButton = new HbPushButton("Add item");
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    connect(addItemButton, SIGNAL(clicked()), this, SLOT(addItem()));
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    buttonsLayout->addItem(addItemButton, 0, 0);
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    HbPushButton *removeItemButtom = new HbPushButton("Remove item");
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    connect(removeItemButtom, SIGNAL(clicked()), this, SLOT(removeItem()));
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    buttonsLayout->addItem(removeItemButtom, 0, 1);
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    HbPushButton *saveActivityAButton = new HbPushButton("Save State A");
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    buttonsLayout->addItem(saveActivityAButton, 1, 0);
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    HbPushButton *saveActivityBButton = new HbPushButton("Save State B");
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    buttonsLayout->addItem(saveActivityBButton, 1, 1);
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    buttonsLayout->setRowFixedHeight(0, 50);
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    buttonsLayout->setRowFixedHeight(1, 50);
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    QSignalMapper *saveActivityMapper = new QSignalMapper(this);
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    saveActivityMapper->setMapping(saveActivityAButton, "StateA");
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    saveActivityMapper->setMapping(saveActivityBButton, "StateB");
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    connect(saveActivityAButton, SIGNAL(clicked()), saveActivityMapper, SLOT(map()));
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    connect(saveActivityBButton, SIGNAL(clicked()), saveActivityMapper, SLOT(map()));
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    connect(saveActivityMapper, SIGNAL(mapped(QString)), this, SIGNAL(activitySaveRequested(QString)));
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    mItemCountLabel = new HbLabel();
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    mItemCountLabel->setAlignment(Qt::AlignCenter);
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    mItemCountLabel->setMaximumHeight(30);
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    updateCountLabel();
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    QGraphicsLinearLayout *mainLayout = new QGraphicsLinearLayout(Qt::Vertical, this);
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    mainLayout->addItem(mItemCountLabel);
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    mainLayout->addItem(mList);
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    mainLayout->addItem(buttonsLayout);
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    setLayout(mainLayout);
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}
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IconsView::~IconsView()
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{
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}
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void IconsView::addItemToModel(int number)
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{
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    QStandardItem *item = new QStandardItem(QIcon(QString(":data\\img%1").arg(number)), QString("Image %1").arg(number));
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    mModel->appendRow(item);
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}
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void IconsView::addItem()
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{
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    addItemToModel(qrand() % 8 + 1);
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    updateCountLabel();
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}
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void IconsView::removeItem()
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{
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    if (mModel->rowCount() > 0) {
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        mModel->removeRow(mModel->rowCount() - 1, QModelIndex());
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    }
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    updateCountLabel();
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}
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void IconsView::updateCountLabel()
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{
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    mItemCountLabel->setPlainText(QString("List contains %1 items").arg(mModel->rowCount()));
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}
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QVariant IconsView::generateActivityData()
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{
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    QByteArray serializedModel;
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    {
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        QDataStream stream(&serializedModel, QIODevice::WriteOnly | QIODevice::Append);
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        for (int row = 0; row < mModel->rowCount(); ++row) {
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            stream << *mModel->item(row);
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        }
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    }
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    return serializedModel;
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}
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void IconsView::loadActivity(const QVariant &data)
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{
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    mModel->clear();
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    QByteArray serializedModel = data.toByteArray();
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    {
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        QDataStream stream(&serializedModel, QIODevice::ReadOnly);
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        while (!stream.atEnd()) {
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            QStandardItem *item = new QStandardItem();
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            stream >> *item;
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            mModel->appendRow(item);
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        }
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    }
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    updateCountLabel();
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}