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 #include <HbExtendedLocale>

    24 #include <HbStyleLoader>

    25 #include <HbIconItem>

    26 #include <hbevent.h>

    27 #include <HbColorScheme>

    28 #include <HbTextItem>

    29 

    30 

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

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

    33 

    34 const QString amPmLabelTextColorRole("qtc_screensaver_analog_clock");

    35 

    36 /*!

    37     \class SnsrAnalogClockWidget

    38     \ingroup group_snsrbigclockscreensaverprovider

    39     \brief Screensaver analog clock widget.

    40  */

    41 

    42 /*!

    43     Constructs a new SnsrAnalogClockWidget.

    44     \param parent Parent object.

    45  */

    46 SnsrAnalogClockWidget::SnsrAnalogClockWidget(QGraphicsItem* parent):

    47     HbWidget(parent),

    48     mClockBackground(0), mClockHourHand(0), 

    49     mClockMinuteHand(0), mClockSecondHand(0),

    50     mClockAmPmLabel(0)

    51 {

    52     HbStyleLoader::registerFilePath(gClockCssFilePath);

    53     HbStyleLoader::registerFilePath(gClockWidgetMLFilePath);

    54     

    55     createPrimitives();

    56     updatePrimitives();

    57 }

    58 

    59 /*!

    60     Destructs the class.

    61  */

    62 SnsrAnalogClockWidget::~SnsrAnalogClockWidget()

    63 {    

    64     HbStyleLoader::unregisterFilePath( gClockCssFilePath );

    65     HbStyleLoader::unregisterFilePath( gClockWidgetMLFilePath );

    66 

    67 }

    68 

    69 void SnsrAnalogClockWidget::polish( HbStyleParameters& params )

    70 {

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

    72     HbWidget::polish(params);

    73     updatePrimitives();

    74 }

    75 

    76 /*!

    77     @copydoc HbWidget::resizeEvent()

    78  */

    79 void SnsrAnalogClockWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

    80 {

    81     HbWidget::resizeEvent(event);

    82     updatePrimitives();

    83 }

    84 

    85 /*!

    86     Creates all widget primitives.

    87  */

    88 void SnsrAnalogClockWidget::createPrimitives()

    89 {

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

    91     // use them instead.

    92     if (!mClockBackground) {

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

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

    95     }

    96     if (!mClockHourHand) {

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

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

    99     }

   100     if (!mClockMinuteHand) {

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

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

   103     }

   104     if (!mClockSecondHand) {

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

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

   107     }

   108     if (!mClockAmPmLabel) {

   109         mClockAmPmLabel = new HbTextItem(this);

   110         HbStyle::setItemName(mClockAmPmLabel, QLatin1String("analog_clock_am_pm_label"));

   111         mClockAmPmLabel->setTextColor(HbColorScheme::color(amPmLabelTextColorRole));

   112         mClockAmPmLabel->setMinimumLines(1);

   113         mClockAmPmLabel->setMaximumLines(1);

   114         mClockAmPmLabel->setTextWrapping(Hb::TextNoWrap);

   115         HbFontSpec textFont(HbFontSpec::Primary);

   116         qreal textHeight = 0;

   117         style()->parameter(QLatin1String("hb-param-text-height-tiny"), textHeight);

   118         textFont.setTextHeight(textHeight);

   119         mClockAmPmLabel->setFontSpec(textFont);

   120     }

   121 }

   122 

   123 /*!

   124     @copydoc HbWidget::updatePrimitives()

   125  */

   126 void SnsrAnalogClockWidget::updatePrimitives()

   127 {

   128     if (!mClockHourHand || !mClockMinuteHand || !mClockSecondHand || !mClockAmPmLabel) {

   129         createPrimitives();

   130     }

   131     

   132     // Calculate angles for clock hands.

   133     QTime time = QTime::currentTime();

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

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

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

   137     

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

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

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

   141 

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

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

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

   145 

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

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

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

   149 

   150     QString amPmString = (time.hour()<12) ? HbExtendedLocale().amText() : HbExtendedLocale().pmText();

   151     mClockAmPmLabel->setText( amPmString );

   152 }

   153 

   154 /*!

   155     Updates primitives when time change.

   156  */

   157 void SnsrAnalogClockWidget::tick()

   158 {

   159     updatePrimitives();

   160 }

   161 

   162 /*!

   163     \reimp

   164  */

   165 void SnsrAnalogClockWidget::changeEvent(QEvent * event)

   166 {

   167     if (event->type() == HbEvent::ThemeChanged) {

   168         mClockAmPmLabel->setTextColor(HbColorScheme::color(amPmLabelTextColorRole));

   169     }

   170     return HbWidget::changeEvent(event);

   171 }