/*+
−
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).+
−
* All rights reserved.+
−
* This component and the accompanying materials are made available+
−
* under the terms of "Eclipse Public License v1.0"+
−
* which accompanies this distribution, and is available+
−
* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
−
*+
−
* Initial Contributors:+
−
* Nokia Corporation - initial contribution.+
−
*+
−
* Contributors:+
−
*+
−
* Description:  CalenPreviewPane implementation.+
−
*+
−
*/+
−
+
−
+
−
// System includes+
−
#include <QtGui>+
−
#include <qfont.h>+
−
#include <qicon.h>+
−
#include <qpainter.h>+
−
#include <qevent.h>+
−
#include <hblabel.h>+
−
#include <hbmainwindow.h>+
−
#include <hbframeitem.h>+
−
#include <hbframedrawer.h>+
−
#include <hbfontspec.h>+
−
#include <hbcolorscheme.h>+
−
#include <hbtapgesture.h>+
−
#include <hbpangesture.h>+
−
#include <hbinstance.h>+
−
#include <hbinstantfeedback.h>+
−
#include <agendautil.h>+
−
#include <agendaentry.h>+
−
+
−
//user includes+
−
#include "calenagendautils.h"+
−
#include "calendateutils.h"+
−
#include "calencontext.h"+
−
#include "calenservices.h"+
−
#include "calenservices.h"+
−
#include "calencommon.h"+
−
#include "calenpreviewpane.h"+
−
#include "calenmonthview.h"+
−
#include "OstTraceDefinitions.h"+
−
#ifdef OST_TRACE_COMPILER_IN_USE+
−
#include "calenpreviewpaneTraces.h"+
−
#endif+
−
+
−
+
−
// Macros+
−
#define TWO_SECONDS_TIMER 2000 // millseconds+
−
#define SCROLLING_SPEED 10+
−
#define MAX_PAN_DIRECTION_THRESHOLD 50+
−
#define MIN_PAN_DIRECTION_THRESHOLD 10+
−
+
−
static const QString EMPTYSTRING(" ");+
−
+
−
/*!+
−
 Constructor+
−
 */+
−
CalenPreviewPane::CalenPreviewPane(MCalenServices& services, +
−
							QGraphicsItem* parent)+
−
	: HbScrollArea(parent),mServices(services)+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_CALENPREVIEWPANE_ENTRY );+
−
    +
−
	// Create the timer+
−
	mTwoSecTimer = new QTimer(this);+
−
	mScrollDirection = invalid;+
−
	mIsNoEntriesAdded = true;+
−
	mIsGestureHandled = false;+
−
	mNoEntriesLabel = 0;+
−
	mHtDiff = 0.0;+
−
	mScrollDuration = 0;+
−
	mPreviewTextColor = HbColorScheme::color("qtc_cal_day_preview_text");+
−
	+
−
	setAcceptDrops(true);+
−
	setScrollDirections(Qt::Vertical);+
−
	setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);+
−
	+
−
	// Connect the scrollig finished signal+
−
	connect(this, SIGNAL(scrollingEnded()), this,+
−
				SLOT(scrollingFinished()));+
−
	+
−
	grabGesture(Qt::TapGesture);+
−
	grabGesture(Qt::PanGesture);+
−
+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_CALENPREVIEWPANE_EXIT );+
−
}+
−
+
−
/*!+
−
 Destructor+
−
 */+
−
CalenPreviewPane::~CalenPreviewPane()+
−
{+
−
    OstTraceFunctionEntry0( DUP1_CALENPREVIEWPANE_CALENPREVIEWPANE_ENTRY );+
−
    +
−
    OstTraceFunctionExit0( DUP1_CALENPREVIEWPANE_CALENPREVIEWPANE_EXIT );+
−
}+
−
+
−
/*!+
−
 Stores the "No Entries for today" label+
−
 */+
−
void CalenPreviewPane::setNoEntriesLabel(HbLabel* label)+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_SETNOENTRIESLABEL_ENTRY );+
−
    +
−
	mNoEntriesLabel = label;+
−
	+
−
	if (mPreviewTextColor.isValid()) {+
−
		mNoEntriesLabel->setTextColor(mPreviewTextColor);+
−
	}+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_SETNOENTRIESLABEL_EXIT );+
−
}+
−
+
−
/*!+
−
 Populates the preview with proper data+
−
 */+
−
void CalenPreviewPane::populateLabel(QDateTime date)+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_POPULATELABEL_ENTRY );+
−
    +
−
	mScrollDirection = up;+
−
	+
−
	// Scroll contents to zero position before we display to the user+
−
	// if it was scrolling already or timer was running+
−
	mNumOfScrolls = 0;+
−
	mScrollDuration = 0;+
−
	stopScrolling();+
−
	+
−
	mDate = date;+
−
	+
−
	// Get Instances for the day+
−
	GetInstanceListL();+
−
	+
−
	// Get the content of the scroll area+
−
	QGraphicsWidget* content = contentWidget();+
−
	// Adjust the layout+
−
	QGraphicsLinearLayout* layout = static_cast<QGraphicsLinearLayout *>+
−
															(content->layout());+
−
	int instanceCount = mInstanceArray.count();+
−
	HbFontSpec font(HbFontSpec::Secondary);+
−
	if (mIsNoEntriesAdded) {+
−
		if (!instanceCount) {+
−
			if (mPreviewTextColor.isValid()) {+
−
				mNoEntriesLabel->setTextColor(mPreviewTextColor);+
−
			}+
−
		    mNoEntriesLabel->setVisible(true);+
−
		    OstTraceFunctionExit0( CALENPREVIEWPANE_POPULATELABEL_EXIT );+
−
		    return;+
−
		} else {+
−
			// Remove the no entries label+
−
			mNoEntriesLabel->setVisible(false);+
−
		}+
−
	}+
−
	int count = layout->count();+
−
	int labelCount = mLabelList.count();+
−
	for (int i = 0; i < labelCount; i++) {+
−
		mLabelList.at(i)->clear();+
−
	}+
−
	if (instanceCount) {+
−
		mIsNoEntriesAdded = false;+
−
		// Parse the instances and add them to the layout+
−
		for (int i = 0; i <instanceCount; i++) {+
−
			HbLabel* label;+
−
			if(!count) {+
−
				label = new HbLabel(this);+
−
				+
−
				// Set the required font+
−
				label->setFontSpec(font);+
−
				+
−
				// Set the elide mode to right+
−
				label->setElideMode(Qt::ElideRight);+
−
				// Add the label to the list+
−
				mLabelList.append(label);+
−
				layout->addItem(label);+
−
			} else {+
−
				// Reuse the same label+
−
				label = mLabelList.at(i);+
−
				count--;+
−
			}+
−
			+
−
			if (mPreviewTextColor.isValid()) {+
−
				label->setTextColor(mPreviewTextColor);+
−
			}+
−
			QString summary = mInstanceArray[i].summary();+
−
			if(!summary.length()) {+
−
				// No summary display "Unnamed"+
−
				summary.append(hbTrId("txt_calendar_preview_unnamed"));+
−
			}+
−
			// Check the entry type, based on the type display time field in+
−
			// preview pane.+
−
			QString start;+
−
			if(mInstanceArray[i].type() != AgendaEntry::TypeTodo && +
−
					mInstanceArray[i].type() != AgendaEntry::TypeAnniversary && +
−
					!CalenAgendaUtils::isAlldayEvent(mInstanceArray[i])) {+
−
				QDateTime startTime = mInstanceArray[i].startTime();+
−
				// Check if event starts in past+
−
				checkStartTimeOfEvent(startTime);+
−
				HbExtendedLocale systemLocale =HbExtendedLocale::system();+
−
				start = systemLocale.format(startTime.time(), +
−
				                                    r_qtn_time_usual_with_zero);+
−
				start.append(EMPTYSTRING);	+
−
			}+
−
			// Append summary to start time+
−
			QString text = start.append(summary);+
−
			label->setPlainText(text);+
−
			layout->setStretchFactor(label,0);+
−
		}+
−
		+
−
		// Cleanup the remaining labels+
−
		if (count) {+
−
			int layoutCount = layout->count();+
−
			int offset = layoutCount - count;+
−
			int labelCount = mLabelList.count();+
−
			for (int i = 0; i < count; i++) {+
−
				QGraphicsLayoutItem* item = layout->itemAt(offset);+
−
				layout->removeAt(offset);+
−
				int index = --labelCount;+
−
				mLabelList.removeAt(index);+
−
				if (item) {+
−
					delete item;+
−
				}+
−
			}+
−
		}+
−
	} else { // Delete all the items in the layout+
−
		// TODO: Need to see if we can clear all the items at one shot+
−
		// remove the items if any+
−
		for (int i = 0; i < count; i++) {+
−
			QGraphicsLayoutItem* item = layout->itemAt(0);+
−
			layout->removeAt(0);+
−
			// Clear the label text+
−
			mLabelList.at(i)->clear();+
−
			if (item) {+
−
				delete item;+
−
			}+
−
		}+
−
		// Clear the list+
−
		mLabelList.clear();+
−
		+
−
		if (mPreviewTextColor.isValid()) {+
−
			mNoEntriesLabel->setTextColor(mPreviewTextColor);+
−
		}+
−
		// Add the no entries text to the preview pane+
−
		mNoEntriesLabel->setVisible(true);+
−
		mIsNoEntriesAdded = true;+
−
	}+
−
	layout->activate();+
−
	+
−
	OstTraceFunctionExit0( DUP1_CALENPREVIEWPANE_POPULATELABEL_EXIT );+
−
}+
−
+
−
/*!+
−
 Fetches the instance for a given day+
−
 */+
−
void CalenPreviewPane::GetInstanceListL()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_GETINSTANCELISTL_ENTRY );+
−
    +
−
	mInstanceArray.clear();+
−
+
−
	// Find Meetings, Remainders, Anniversaries and Day Notes+
−
	QDateTime dayStart( CalenDateUtils::beginningOfDay( mDate ) );+
−
+
−
	// Make a request to get all the entries for the mDate+
−
	AgendaUtil::FilterFlags filter = AgendaUtil::FilterFlags(+
−
										AgendaUtil::IncludeAnniversaries |+
−
										AgendaUtil::IncludeAppointments |+
−
											AgendaUtil::IncludeEvents |+
−
											AgendaUtil::IncludeIncompletedTodos | +
−
										AgendaUtil::IncludeReminders);+
−
	mInstanceArray = mServices.agendaInterface()->+
−
									createEntryIdListForDay(dayStart, filter);+
−
	+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_GETINSTANCELISTL_EXIT );+
−
}+
−
+
−
/*!+
−
 Returns the date which this preview pane is representing+
−
 */+
−
QDateTime CalenPreviewPane::Date()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_DATE_ENTRY );+
−
    +
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_DATE_EXIT );+
−
	return mDate;+
−
}+
−
+
−
/*!+
−
 Starts the auto scroll on the preview pane+
−
 */+
−
void CalenPreviewPane::startAutoScroll()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_STARTAUTOSCROLL_ENTRY );+
−
    +
−
	if (mIsNoEntriesAdded) {+
−
		scrollContentsTo(QPointF(0.0,0.0));+
−
		OstTraceFunctionExit0( CALENPREVIEWPANE_STARTAUTOSCROLL_EXIT );+
−
		return;+
−
	}+
−
	+
−
	// Stop the timer+
−
	mTwoSecTimer->stop();+
−
	+
−
	// Set the proper scroll direction+
−
	mScrollDirection = up;+
−
	+
−
	// Start the 2 seconds timer+
−
	mTwoSecTimer->setSingleShot(true);+
−
	connect(mTwoSecTimer, SIGNAL(timeout()), this, SLOT(onTwoSecondsTimeout()));+
−
	mTwoSecTimer->start(TWO_SECONDS_TIMER);+
−
	+
−
	OstTraceFunctionExit0( DUP1_CALENPREVIEWPANE_STARTAUTOSCROLL_EXIT );+
−
}+
−
+
−
/*!+
−
 Slot to handle two seconds timer time out+
−
 Starts the scrolling animation in required direction+
−
 */+
−
void CalenPreviewPane::onTwoSecondsTimeout()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_ONTWOSECONDSTIMEOUT_ENTRY );+
−
    +
−
	mTwoSecTimer->stop();+
−
	disconnect(mTwoSecTimer, SIGNAL(timeout()), +
−
										   this, SLOT(onTwoSecondsTimeout()));+
−
	+
−
	// Calculate the timer and the height difference of pane and its content+
−
	if (!mScrollDuration) {+
−
        qreal contentHeight = contentWidget()->size().height();+
−
        qreal paneHeight = size().height();+
−
        mHtDiff = contentHeight - paneHeight;+
−
        if (mHtDiff > 0) { // content is more than widget height, we need to scroll+
−
            mScrollDuration = mHtDiff / SCROLLING_SPEED;+
−
        }+
−
	}+
−
	+
−
    // Start the scrolling in the proper direction+
−
	if (mScrollDirection == up && mScrollDuration) {+
−
		// Start scrolling upwards+
−
		mScrollDirection = down;+
−
		mNumOfScrolls++;+
−
		QPointF targetPos(0.0, -mHtDiff);+
−
        scrollContentsTo(-targetPos, mScrollDuration * 1000);+
−
	} else if (mScrollDirection == down && mScrollDuration) {+
−
		mScrollDirection = up;+
−
		mNumOfScrolls++;+
−
		// Start scrolling downwards+
−
		QPointF targetPos(0.0, 0.0);+
−
        scrollContentsTo(targetPos, mScrollDuration * 1000);+
−
	}+
−
	+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_ONTWOSECONDSTIMEOUT_EXIT );+
−
}+
−
+
−
/*!+
−
 Slot to handle scrolling finished+
−
 Restarts the two seconds timer+
−
 */+
−
void CalenPreviewPane::scrollingFinished()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_SCROLLINGFINISHED_ENTRY );+
−
    +
−
	// If we are here because of calling scrollContentsTo()+
−
	if (!mNumOfScrolls) {+
−
		OstTraceFunctionExit0( CALENPREVIEWPANE_SCROLLINGFINISHED_EXIT );+
−
		return;+
−
	}+
−
	// Now start the two seconds timer again+
−
	mTwoSecTimer->setSingleShot(true);+
−
	connect(mTwoSecTimer, SIGNAL(timeout()), this, SLOT(onTwoSecondsTimeout()));+
−
	mTwoSecTimer->start(TWO_SECONDS_TIMER);+
−
	+
−
	OstTraceFunctionExit0( DUP1_CALENPREVIEWPANE_SCROLLINGFINISHED_EXIT );+
−
}+
−
+
−
/*!+
−
    Function to listen for all gestures+
−
 */+
−
void CalenPreviewPane::gestureEvent(QGestureEvent *event)+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_GESTUREEVENT_ENTRY );+
−
    +
−
    if(HbPanGesture *gesture = qobject_cast<HbPanGesture *>(event->gesture(Qt::PanGesture))) {+
−
        if (gesture->state() == Qt::GestureUpdated) {+
−
            // Check if effect is not yet completed, ignore the current gesture if it is+
−
            if (mIsGestureHandled) {+
−
                OstTraceFunctionExit0( CALENPREVIEWPANE_GESTUREEVENT_EXIT );+
−
                return;+
−
            }+
−
            // TODO: This work around till framework provides an api+
−
            // to know the direciton of the pan, until then we need+
−
            // calculate the direction explicitly+
−
            // Get to know the direction of the gesture+
−
            QPointF delta = gesture->delta();+
−
            // Check the current orientation of the device and+
−
            // swap the vertical and horizontal distances in landscape+
−
            qreal horizontalDiff = 0.0;+
−
            qreal verticalDiff = 0.0;+
−
            if (hbInstance->allMainWindows().at(0)->orientation() == Qt::Vertical) {+
−
                horizontalDiff = delta.x();+
−
                verticalDiff = delta.y();+
−
            } else {+
−
                horizontalDiff = delta.y();+
−
                verticalDiff = delta.x();+
−
            }+
−
            if (abs(verticalDiff) > MAX_PAN_DIRECTION_THRESHOLD) {+
−
                // Now see if x coord diff has crossed threshold+
−
                if (horizontalDiff > MAX_PAN_DIRECTION_THRESHOLD) {+
−
                    mIsGestureHandled = true;+
−
                    // right gesture+
−
                    mView->handlePreviewPaneGesture(true);+
−
                    event->accept(Qt::PanGesture);+
−
                } else if (horizontalDiff < -MAX_PAN_DIRECTION_THRESHOLD){+
−
                    mIsGestureHandled = true;+
−
                    // left gesture+
−
                    mView->handlePreviewPaneGesture(false);+
−
                    event->accept(Qt::PanGesture);+
−
                } else {+
−
                    event->accept(Qt::PanGesture);+
−
                    OstTraceFunctionExit0( DUP1_CALENPREVIEWPANE_GESTUREEVENT_EXIT );+
−
                    return;+
−
                }+
−
            } else if (abs(verticalDiff) < MAX_PAN_DIRECTION_THRESHOLD) {+
−
               if (horizontalDiff > MIN_PAN_DIRECTION_THRESHOLD) {+
−
                   mIsGestureHandled = true;+
−
                   // right gesture+
−
                   mView->handlePreviewPaneGesture(true);+
−
                   event->accept(Qt::PanGesture);+
−
               } else if (horizontalDiff < -MIN_PAN_DIRECTION_THRESHOLD){+
−
                   mIsGestureHandled = true;+
−
                   // left gesture+
−
                   mView->handlePreviewPaneGesture(false);+
−
                   event->accept(Qt::PanGesture);+
−
               }else {+
−
                   event->accept(Qt::PanGesture);+
−
                   OstTraceFunctionExit0( DUP2_CALENPREVIEWPANE_GESTUREEVENT_EXIT );+
−
                   return;+
−
               }+
−
            }+
−
        }+
−
    } else if(QTapGesture *tapGesture = qobject_cast<QTapGesture *>(event->gesture(Qt::TapGesture))) {+
−
        if (tapGesture && tapGesture->state() == Qt::GestureFinished) {+
−
            	HbInstantFeedback::play(HbFeedback::Basic);+
−
                // Preview pane tapped+
−
            	// Stop the scrolling first+
−
            	stopScrolling();+
−
            	// Issue command to launch agenda view+
−
                mServices.IssueCommandL(ECalenAgendaView);+
−
                mView->disconnectAboutToQuitEvent();+
−
                event->accept(Qt::TapGesture);+
−
        }+
−
    }+
−
    +
−
    OstTraceFunctionExit0( DUP3_CALENPREVIEWPANE_GESTUREEVENT_EXIT );+
−
}+
−
+
−
/*!+
−
 Set monthview pointer+
−
 */+
−
void CalenPreviewPane::setView(CalenMonthView* view)+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_SETVIEW_ENTRY );+
−
    +
−
	mView = view;+
−
	+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_SETVIEW_EXIT );+
−
}+
−
+
−
/*!+
−
 Stops the auto scrolling+
−
 */+
−
void CalenPreviewPane::stopScrolling()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_STOPSCROLLING_ENTRY );+
−
    +
−
    mTwoSecTimer->stop();+
−
	if (isScrolling()) {+
−
        mNumOfScrolls = 0; // required so that timer will not get started again in +
−
        // scrollingFinished() slot+
−
        // Stop the scrolling by sending the foucs out event+
−
        QFocusEvent* focusEvent = new QFocusEvent(QFocusEvent::FocusOut, Qt::MouseFocusReason);+
−
        focusOutEvent(focusEvent); +
−
        +
−
        // Set the contents position to zero+
−
		scrollContentsTo(QPointF(0.0,0.0));+
−
	}+
−
	+
−
	OstTraceFunctionExit0( CALENPREVIEWPANE_STOPSCROLLING_EXIT );+
−
}+
−
+
−
/*!+
−
 Checks if the start time of the event falls on the date for which preview+
−
 pane is being shown. If start time is in past, then time will be 12:00AM+
−
 */+
−
void CalenPreviewPane::checkStartTimeOfEvent(QDateTime &dateTime)+
−
{+
−
    // If event start time is in past+
−
    if (dateTime.date() < mDate.date()) {+
−
        // Set the time to 12:00AM of mDate+
−
        dateTime.setDate(mDate.date());+
−
        QTime time(0,0,0,0); // 0 means 12:00 AM+
−
        dateTime.setTime(time);+
−
    }+
−
}+
−
+
−
/*!+
−
 Sets the effect beign handled flag to true+
−
 */+
−
void CalenPreviewPane::effectStarted()+
−
{+
−
    mIsGestureHandled = true;+
−
}+
−
+
−
/*!+
−
 Resets the effect beign handled flag to true+
−
 */+
−
void CalenPreviewPane::effectFinished()+
−
{+
−
    mIsGestureHandled = false;+
−
}+
−
+
−
/*!+
−
 Slot to handle the change in theme+
−
 */+
−
void CalenPreviewPane::handleThemeChange()+
−
{+
−
    OstTraceFunctionEntry0( CALENPREVIEWPANE_HANDLETHEMECHANGE_ENTRY );+
−
    +
−
    mPreviewTextColor = HbColorScheme::color("qtc_cal_day_preview_text");+
−
    +
−
    OstTraceFunctionExit0( CALENPREVIEWPANE_HANDLETHEMECHANGE_EXIT );+
−
}+
−
+
−
// End of file  --Don't remove this.+
−