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: Oled Clock Widget.

    15 *

    16 */

    17 

    18 #include "snsroledclockwidget.h"

    19 #include "snsrlabel.h"

    20 #include "snsrcolors.h"

    21 

    22 #include <QGraphicsSvgItem>

    23 #include <QTime>

    24 #include <QDebug>

    25 #include <QLocale>

    26 #include <HbExtendedLocale>

    27 #include <HbStyleLoader>

    28 #include <HbIconItem>

    29 #include <HbTextItem>

    30 

    31 

    32 const char *gOledClockCssFilePath = ":/style/snsroledclockwidget.css";

    33 const char *gOledClockWidgetMLFilePath = ":/style/snsroledclockwidget.widgetml";

    34 

    35 /*!

    36     \class SnsrOledClockWidget

    37     \ingroup group_snsrbigclockscreensaverprovider

    38     \brief Screensaver oled clock widget.

    39  */

    40 

    41 /*!

    42     Constructs a new SnsrOledClockWidget.

    43     \param parent Parent object.

    44  */

    45 SnsrOledClockWidget::SnsrOledClockWidget(QGraphicsItem* parent):

    46     HbWidget(parent),

    47     mClockBackground(0), mClockHourHand(0), mClockMinuteHand(0),

    48     mClockAmPmLabel(0)

    49 {

    50     HbStyleLoader::registerFilePath(gOledClockCssFilePath);

    51     HbStyleLoader::registerFilePath(gOledClockWidgetMLFilePath);

    52 

    53     createPrimitives();

    54     updatePrimitives();

    55 }

    56 

    57 void SnsrOledClockWidget::polish( HbStyleParameters& params )

    58 {

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

    60     HbWidget::polish(params);

    61     updatePrimitives();

    62 }

    63 

    64 /*!

    65     Destructs the class.

    66  */

    67 SnsrOledClockWidget::~SnsrOledClockWidget()

    68 {

    69     HbStyleLoader::unregisterFilePath( gOledClockCssFilePath );

    70     HbStyleLoader::unregisterFilePath( gOledClockWidgetMLFilePath );

    71 

    72 }

    73 

    74 /*!

    75     @copydoc HbWidget::resizeEvent()

    76  */

    77 void SnsrOledClockWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

    78 {

    79     HbWidget::resizeEvent(event);

    80     updatePrimitives();

    81 }

    82 

    83 /*!

    84     Creates all widget primitives.

    85  */

    86 void SnsrOledClockWidget::createPrimitives()

    87 {

    88     // TODO: final graphics will be named qtg_graf_screensaver_clock_oled_xxx.

    89     // not available in platform yet

    90 

    91     if (!mClockBackground) {

    92         mClockBackground = new HbIconItem(QLatin1String("qtg_graf_clock_night_bg"), this);

    93         HbStyle::setItemName(mClockBackground, QLatin1String("oled_clock_background"));

    94     }

    95     if (!mClockHourHand) {

    96         mClockHourHand = new HbIconItem(QLatin1String("qtg_graf_clock_night_hour"), this);

    97         HbStyle::setItemName(mClockHourHand, QLatin1String("oled_clock_hour_hand"));

    98     }

    99     if (!mClockMinuteHand) {

   100         mClockMinuteHand = new HbIconItem(QLatin1String("qtg_graf_clock_night_min"), this);

   101         HbStyle::setItemName(mClockMinuteHand, QLatin1String("oled_clock_minute_hand"));

   102     }

   103     if (!mClockAmPmLabel) {

   104         mClockAmPmLabel = new HbTextItem(this);

   105         HbStyle::setItemName(mClockAmPmLabel, QLatin1String("oled_clock_am_pm_label"));

   106         mClockAmPmLabel->setTextColor(SnsrColors::PowerSaveModeWidgetColor);

   107         mClockAmPmLabel->setMinimumLines(1);

   108         mClockAmPmLabel->setMaximumLines(1);

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

   110         HbFontSpec textFont(HbFontSpec::Primary);

   111         qreal textHeight = 0;

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

   113         textFont.setTextHeight(textHeight);

   114         mClockAmPmLabel->setFontSpec(textFont);

   115     }

   116 }

   117 

   118 /*!

   119     @copydoc HbWidget::updatePrimitives()

   120  */

   121 void SnsrOledClockWidget::updatePrimitives()

   122 {

   123     if (!mClockHourHand || !mClockMinuteHand || !mClockAmPmLabel) {

   124         createPrimitives();

   125     }

   126     Q_ASSERT( mClockHourHand && mClockMinuteHand && mClockAmPmLabel );

   127     

   128     // Calculate angles for clock hands.

   129     // Use granularity of one minute so that minute hand is always exactly

   130     // on some minute and not between minutes. OLED clock is not updated more

   131     // frequently than once per minute and using finer granularity would cause

   132     // the minute hand to be always between even minutes.

   133     QTime time = QTime::currentTime();

   134     qreal m = 6 * time.minute();

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

   136     

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

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

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

   140 

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

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

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

   144 

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

   146     mClockAmPmLabel->setText( amPmString );

   147 }

   148 

   149 /*!

   150     Updates primitives when time change.

   151  */

   152 void SnsrOledClockWidget::tick()

   153 {

   154     updatePrimitives();

   155 }