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/*
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* Copyright (c) 2010 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: Indicator Widget.
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*
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*/
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#include "snsrindicatorwidget.h"
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#include "snsrindicatorinfo.h"
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#include "snsrcolors.h"
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#include <hbevent.h>
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#include <HbColorScheme>
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#include <QDebug>
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#include <QSizePolicy>
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#include <HbStyleLoader>
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#include <HbIconItem>
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#include <HbIndicatorInterface>
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const char *gIndicatorCssFilePath =":/style/snsrindicatorwidget.css";
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const char *gIndicatorWidgetMLFilePath = ":/style/snsrindicatorwidget.widgetml";
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const int gNumberOfIcons(6);
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/*!
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\class SnsrIndicatorWidget
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\ingroup group_snsrbigclockscreensaverprovider
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\brief Screensaver indicator widget.
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*/
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/*!
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Constructs a new SnsrIndicatorWidget.
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\param parent Parent object.
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*/
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SnsrIndicatorWidget::SnsrIndicatorWidget(QGraphicsItem* parent):
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HbWidget(parent), mLayoutType(IndicatorsCentered),
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mIconColorType(ThemedColorForActiveMode),
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mIconColor(HbColorScheme::color(SnsrColors::WidgetColorRole.latin1()))
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{
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HbStyleLoader::registerFilePath(gIndicatorCssFilePath);
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HbStyleLoader::registerFilePath(gIndicatorWidgetMLFilePath);
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setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
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createPrimitives();
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}
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/*!
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Destructs the class.
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*/
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SnsrIndicatorWidget::~SnsrIndicatorWidget()
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{
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// icons within the list are deleted by parent
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mIcons.clear();
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HbStyleLoader::unregisterFilePath( gIndicatorCssFilePath );
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HbStyleLoader::unregisterFilePath( gIndicatorWidgetMLFilePath );
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}
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SnsrIndicatorWidget::IndicatorLayoutType SnsrIndicatorWidget::layoutType() const
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{
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return mLayoutType;
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}
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/*!
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Sets the name of layout definition \a layoutName for selecting
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the layout of view items of this view from css/xml files.
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This layout is accessible from css file as layout property
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of the view item.
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*/
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void SnsrIndicatorWidget::setLayoutType(IndicatorLayoutType type)
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{
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if (mLayoutType != type ) {
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mLayoutType = type;
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QSizePolicy::Policy hSizePolicy(QSizePolicy::Expanding);
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if ( mLayoutType == IndicatorsAlignedLeft ) {
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hSizePolicy = QSizePolicy::Preferred;
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}
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setSizePolicy(hSizePolicy,QSizePolicy::Preferred);
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}
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}
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/*!
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Set the coloring scheme to be used: fixed color for power save mode (white) or
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themed color for active mode.
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*/
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void SnsrIndicatorWidget::setIconColorType(const IconColorType &colorType)
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{
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mIconColorType = colorType;
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if (mIconColorType==FixedColorForPowerSaveMode) {
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mIconColor=SnsrColors::PowerSaveModeWidgetColor;
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}
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else {
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mIconColor=HbColorScheme::color(SnsrColors::WidgetColorRole.latin1());
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}
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}
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/*!
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This is called whenever indicators' status changes: parameter list
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tells which indicators should be shown at the given moment. All
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previously shown indicators should be hidden and show only these
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indicators passed as a parameter.
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*/
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void SnsrIndicatorWidget::showIndicators(const QList<SnsrIndicatorInfo> &indicators)
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{
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// Update icon paths so that shown iconItems have
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// valid icon path and rest have empty path (->invisible)
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int indicatorAmount = indicators.size();
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removeAllIndicators();
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// update icon paths for items that are gonna be shown
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for (int i=0; i < indicatorAmount && i < mIcons.size(); ++i) {
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mIcons.at(i)->setIconName(indicators.at(i).iconPath);
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mIcons.at(i)->setFlags(HbIcon::Colorized);
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mIcons.at(i)->setColor(mIconColor);
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}
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// To recalculate layouts
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updateGeometry();
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if ( parentLayoutItem() ) {
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parentLayoutItem()->updateGeometry(); // clear the cache of the parent
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}
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}
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/*!
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Remove all indicators from UI.
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*/
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void SnsrIndicatorWidget::removeAllIndicators()
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{
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for (int i=0; i < mIcons.size(); ++i) {
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mIcons.at(i)->setIconName(QString());
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}
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}
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/*!
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\reimp
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*/
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void SnsrIndicatorWidget::changeEvent(QEvent * event)
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{
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if (event->type() == HbEvent::ThemeChanged &&
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mIconColorType == ThemedColorForActiveMode) {
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mIconColor = HbColorScheme::color(SnsrColors::WidgetColorRole.latin1());
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for (int i=0; i < mIcons.size(); ++i) {
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mIcons.at(i)->setColor(mIconColor);
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}
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}
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return HbWidget::changeEvent(event);
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}
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/*!
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If indicator pane is going to be centered, then calculate width so that it's
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exactly the same as visible icons are taking space (+spacers between them).
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If indicator pane is left aligned, then actual width doesn't matter.
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Assumption is that icons are fixed sized.
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\reimp
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*/
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QSizeF SnsrIndicatorWidget::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
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{
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QSizeF hint = HbWidget::sizeHint(which, constraint);
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if (which == Qt::PreferredSize && layoutType() == IndicatorsCentered ) {
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qreal width(0);
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qreal itemWidth(0);
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qreal iconSpace(0);
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int visibleIconCount(0);
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for (int i=0; i < mIcons.size(); ++i) {
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if (!mIcons.at(i)->iconName().isEmpty() ) {
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visibleIconCount++;
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itemWidth = mIcons.at(i)->iconItemSize().width();
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width = width + itemWidth;
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}
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}
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if (visibleIconCount > 1) {
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style()->parameter("hb-param-margin-gene-middle-horizontal", iconSpace);
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width = width + ((visibleIconCount-1)*iconSpace);
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}
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hint.setWidth(width);
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}
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return hint;
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}
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/*!
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Creates all widget primitives.
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Coloring is handled via CSS.
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*/
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void SnsrIndicatorWidget::createPrimitives()
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{
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if (!mIcons.isEmpty()) {
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return;
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}
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HbIconItem *icon(0);
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QLatin1String itemNameBase("icon");
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int itemNameEnd(1);
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QString itemName("");
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while (mIcons.count() < gNumberOfIcons) {
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// When created, icon names are left empty -> nothing shown in UI.
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icon = new HbIconItem(this);
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icon->setFlags(HbIcon::Colorized);
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icon->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
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// Create items that are named icon1..icon6.
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itemName.clear();
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itemName.append(itemNameBase);
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itemName.append(QString::number(itemNameEnd));
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HbStyle::setItemName(icon, itemName);
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++itemNameEnd;
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mIcons.append(icon);
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}
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}
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