1 /*

     2 * Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Analog Clock Widget.

    15 *

    16 */

    17 

    18 #include "snsranalogclockwidget.h"

    19 

    20 #include <QGraphicsSvgItem>

    21 #include <QTime>

    22 #include <QDebug>

    23 

    24 #include <HbStyleLoader>

    25 #include <HbIconItem>

    26 

    27 

    28 const char *gClockCssFilePath =":/style/snsranalogclockwidget.css";

    29 const char *gClockWidgetMLFilePath = ":/style/snsranalogclockwidget.widgetml";

    30 

    31 /*!

    32     \class SnsrAnalogClockWidget

    33     \ingroup group_snsrbigclockscreensaverprovider

    34     \brief Screensaver analog clock widget.

    35  */

    36 

    37 /*!

    38     Constructs a new SnsrAnalogClockWidget.

    39     \param parent Parent object.

    40  */

    41 SnsrAnalogClockWidget::SnsrAnalogClockWidget(QGraphicsItem* parent):

    42     HbWidget(parent),

    43     mClockBackground(0), mClockHourHand(0), 

    44     mClockMinuteHand(0), mClockSecondHand(0)

    45 {

    46     HbStyleLoader::registerFilePath(gClockCssFilePath);

    47     HbStyleLoader::registerFilePath(gClockWidgetMLFilePath);

    48     

    49     createPrimitives();

    50     updatePrimitives();

    51 }

    52 

    53 /*!

    54     Destructs the class.

    55  */

    56 SnsrAnalogClockWidget::~SnsrAnalogClockWidget()

    57 {    

    58     HbStyleLoader::unregisterFilePath( gClockCssFilePath );

    59     HbStyleLoader::unregisterFilePath( gClockWidgetMLFilePath );

    60 

    61 }

    62 

    63 void SnsrAnalogClockWidget::polish( HbStyleParameters& params )

    64 {

    65     // TODO: updatePrimitives might not be needed to be called from here anymore (hb changes)?

    66     HbWidget::polish(params);

    67     updatePrimitives();

    68 }

    69 

    70 /*!

    71     @copydoc HbWidget::resizeEvent()

    72  */

    73 void SnsrAnalogClockWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

    74 {

    75     HbWidget::resizeEvent(event);

    76     updatePrimitives();

    77 }

    78 

    79 /*!

    80     Creates all widget primitives.

    81  */

    82 void SnsrAnalogClockWidget::createPrimitives()

    83 {

    84     // TODO: when final graphics are available in platform (qtg_graf_screensaver_clock_xxx)

    85     // use them instead. Also am/pm label should be added into the clock face.

    86     if (!mClockBackground) {

    87         mClockBackground = new HbIconItem(QLatin1String("qtg_graf_clock_day_bg"), this);

    88         HbStyle::setItemName(mClockBackground, QLatin1String("analog_clock_background"));

    89     }

    90     if (!mClockHourHand) {

    91         mClockHourHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_hour"), this);

    92         HbStyle::setItemName(mClockHourHand, QLatin1String("analog_clock_hour_hand"));

    93     }

    94     if (!mClockMinuteHand) {

    95         mClockMinuteHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_min"), this);

    96         HbStyle::setItemName(mClockMinuteHand, QLatin1String("analog_clock_minute_hand"));

    97     }

    98     if (!mClockSecondHand) {

    99         mClockSecondHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_sec"), this);

   100         HbStyle::setItemName(mClockSecondHand, QLatin1String("analog_clock_second_hand"));

   101     }

   102 }

   103 

   104 /*!

   105     @copydoc HbWidget::updatePrimitives()

   106  */

   107 void SnsrAnalogClockWidget::updatePrimitives()

   108 {

   109     if (!mClockHourHand || !mClockMinuteHand || !mClockSecondHand) {

   110         createPrimitives();

   111     }

   112     

   113     // Calculate angles for clock hands.

   114     QTime time = QTime::currentTime();

   115     qreal s = 6 * time.second();

   116     qreal m = 6 * (time.minute() + s/360);

   117     qreal h = 30 * ((time.hour() % 12) + m/360);

   118     

   119     int x = mClockHourHand->preferredSize().width()/2;

   120     int y = mClockHourHand->preferredSize().height()/2;

   121     mClockHourHand->setTransform(QTransform().translate(x, y).rotate(h).translate(-x, -y));

   122 

   123     x = mClockMinuteHand->preferredSize().width()/2;

   124     y = mClockMinuteHand->preferredSize().height()/2;

   125     mClockMinuteHand->setTransform(QTransform().translate(x, y).rotate(m).translate(-x, -y));

   126 

   127     x = mClockSecondHand->preferredSize().width()/2;

   128     y = mClockSecondHand->preferredSize().height()/2;

   129     mClockSecondHand->setTransform(QTransform().translate(x, y).rotate(s).translate(-x, -y));

   130 

   131 }

   132 

   133 /*!

   134     Updates primitives when time change.

   135  */

   136 void SnsrAnalogClockWidget::tick()

   137 {

   138     updatePrimitives();

   139 }