1 /*

     2 * Copyright (c) 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:  Swipe Widget.

    15 *

    16 */

    17 

    18 #include <QDebug>

    19 #include <HbStyleLoader>

    20 #include <hbeffect.h>

    21 #include <hblabel.h>

    22 

    23 #include "snsrbigclockcontainer.h"

    24 #include "snsranalogclockcontainer.h"

    25 #include "snsrswipewidget.h"

    26 

    27 const char *gSwipeCssFilePath =":/style/snsrswipewidget.css";

    28 const char *gSwipeWidgetMLFilePath = ":/style/snsrswipewidget.widgetml";

    29 const char *gSwipeColorCssFilePath = ":/style/snsrswipewidget_color.css";

    30 

    31 const qreal gSwipeDownAngle = 270;

    32 const qreal gSwipeAngleTolerance = 25;

    33 

    34 /*!

    35     \class SnsrSwipeWidget

    36     \ingroup group_snsrbigclockscreensaverplugins

    37     \brief Screensaver swipe widget.

    38  */

    39 

    40 /*!

    41     Constructs a new SnsrSwipeWidget.

    42     \param parent Parent object.

    43  */

    44 SnsrSwipeWidget::SnsrSwipeWidget(QGraphicsItem* parent):

    45     HbWidget(parent),

    46     mSlideLabel(0), mSlideIcon(0)

    47 {

    48     HbStyleLoader::registerFilePath(gSwipeCssFilePath);

    49     HbStyleLoader::registerFilePath(gSwipeWidgetMLFilePath);

    50     HbStyleLoader::registerFilePath(gSwipeColorCssFilePath);

    51     

    52     setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);

    53 

    54     createPrimitives();

    55 

    56     HbEffect::add(mSlideIcon,

    57         ":/xml/animate_portrait.fxml",

    58         "slideDownPortrait");

    59 

    60     reset();

    61     grabGesture(Qt::SwipeGesture);

    62 

    63 }

    64 

    65 /*!

    66     Destructs the class.

    67  */

    68 SnsrSwipeWidget::~SnsrSwipeWidget()

    69 {

    70     HbStyleLoader::unregisterFilePath( gSwipeCssFilePath );

    71     HbStyleLoader::unregisterFilePath( gSwipeWidgetMLFilePath );

    72     HbStyleLoader::unregisterFilePath( gSwipeColorCssFilePath );

    73 

    74     HbEffect::remove(mSlideIcon);

    75 }

    76 

    77 void SnsrSwipeWidget::start()

    78 {

    79     // Start animation

    80     HbEffect::start(mSlideIcon, "slideDownPortrait", this, "animationComplete");

    81 }

    82 

    83 void SnsrSwipeWidget::reset()

    84 {

    85     // Cancel animation and disable callback

    86     HbEffect::cancel(mSlideIcon, "slideDownPortrait", false, false);

    87 }

    88 

    89 void SnsrSwipeWidget::animationComplete(const HbEffect::EffectStatus &status)

    90 {

    91     Q_UNUSED(status);

    92     HbEffect::start(mSlideIcon, "slideDownPortrait", this, "animationComplete");

    93 }

    94 

    95 

    96 /*!

    97     Creates all widget primitives.

    98  */

    99 void SnsrSwipeWidget::createPrimitives()

   100 {

   101     if (!mSlideLabel) {

   102         mSlideLabel = new HbLabel(this);

   103         mSlideLabel->setPlainText(hbTrId("txt_screensaver_swipe"));

   104         mSlideLabel->setAlignment(Qt::AlignCenter);

   105         mSlideLabel->setPreferredHeight(50.0);

   106         mSlideLabel->setPreferredWidth(224.0);

   107         HbStyle::setItemName(mSlideLabel, QLatin1String("slideLabel"));

   108     }

   109     if (!mSlideIcon) {

   110         mSlideIcon = new HbLabel(QLatin1String("slider"), this);

   111         mSlideIcon->setIcon(HbIcon(":/slider"));   

   112         mSlideIcon->setAspectRatioMode(Qt::KeepAspectRatioByExpanding);

   113         mSlideIcon->setAlignment(Qt::AlignCenter);

   114         mSlideIcon->setPreferredHeight(50.0);

   115         mSlideIcon->setPreferredWidth(100.0);

   116         HbStyle::setItemName(mSlideIcon, QLatin1String("slideIcon"));

   117     }

   118 }

   119 

   120 /*!

   121     \reimp

   122  */

   123 

   124 void SnsrSwipeWidget::gestureEvent(QGestureEvent *event)

   125 {

   126     SCREENSAVER_TEST_FUNC_ENTRY("SnsrSwipeWidget::gestureEvent")

   127 

   128     QGesture *gesture = event->gesture(Qt::SwipeGesture);

   129     QSwipeGesture *swipe = static_cast<QSwipeGesture *>(gesture);

   130 

   131     if ( swipe && swipe->state() == Qt::GestureStarted ) {

   132         start();

   133         event->accept(Qt::SwipeGesture);

   134     }

   135     else if ( swipe && swipe->state() == Qt::GestureFinished ) {

   136         // TODO: Remove following, currently shows some debug data on screen

   137         mSlideLabel->setPlainText( QString("angle=%1, horD=%2, verD=%3 ")

   138                 .arg(swipe->swipeAngle())

   139                 .arg(swipe->horizontalDirection())

   140                 .arg(swipe->verticalDirection()) );

   141         

   142         // unclock with downward swipe

   143         qreal swipeAngle = swipe->swipeAngle();

   144         if ( abs(swipeAngle - gSwipeDownAngle) < gSwipeAngleTolerance ) {

   145             

   146             emit swipeDownDetected();

   147             event->accept(Qt::SwipeGesture);

   148             }

   149     }

   150     else { event->ignore(Qt::SwipeGesture); }

   151 

   152     SCREENSAVER_TEST_FUNC_EXIT("SnsrSwipeWidget::gestureEvent")

   153 }