--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/calendarui/views/src/calenpreviewpane.cpp	Fri Apr 16 14:57:40 2010 +0300
@@ -0,0 +1,352 @@
+/*
+* 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 <hblabel.h>
+#include <hbmainwindow.h>
+#include <hbframeitem.h>
+#include <hbframedrawer.h>
+#include <hbfontspec.h>
+#include <hbcolorscheme.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"
+
+// Macros
+#define TWO_SECONDS_TIMER 2000 // millseconds
+#define SCROLLING_SPEED 50
+
+static const QString EMPTYSTRING(" ");
+
+/*!
+ Constructor
+ */
+CalenPreviewPane::CalenPreviewPane(MCalenServices& services, 
+							QGraphicsItem* parent)
+	: HbScrollArea(parent),mServices(services)
+{
+	// Create the timer
+	mTwoSecTimer = new QTimer(this);
+	mScrollDirection = invalid;
+	mIsNoEntriesAdded = true;
+	mNoEntriesLabel = 0;
+	setAcceptDrops(true);
+	setScrollDirections(Qt::Vertical);
+	setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);
+	// Set the frame to the preview pane
+	HbFrameItem* frame = new HbFrameItem(this);
+	frame->frameDrawer().setFrameType(HbFrameDrawer::NinePieces);
+
+	frame->frameDrawer().setFrameGraphicsName("qtg_fr_cal_preview_bg");
+	setBackgroundItem(frame->graphicsItem(), -5);
+	
+	// Connect the scrollig finished signal
+	connect(this, SIGNAL(scrollingEnded()), this,
+				SLOT(scrollingFinished()));
+}
+
+/*!
+ Destructor
+ */
+CalenPreviewPane::~CalenPreviewPane()
+{
+}
+
+/*!
+ Stores the "No Entries for today" label
+ */
+void CalenPreviewPane::setNoEntriesLabel(HbLabel* label)
+{
+	mNoEntriesLabel = label;
+}
+
+/*!
+ Populates the preview with proper data
+ */
+void CalenPreviewPane::populateLabel(QDateTime date)
+{
+	mScrollDirection = up;
+	
+	// Scroll contents to zero position before we display to the user
+	// if it was scrolling already or timer was running
+	mNumOfScrolls = 0;
+	stopScrolling();
+	
+	mDate = date;
+	
+	// Get Instances for the day
+	GetInstanceListL();
+	
+	// Get the content of the scroll area
+	QGraphicsWidget* content = this->contentWidget();
+	// Adjust the layout
+	QGraphicsLinearLayout* layout = static_cast<QGraphicsLinearLayout *>
+															(content->layout());
+	
+	layout->setPreferredWidth(preferredWidth());
+	layout->setMinimumWidth(minimumWidth());
+	layout->setMaximumWidth(maximumWidth());
+	
+	int instanceCount = mInstanceArray.count();
+	HbFontSpec font(HbFontSpec::Secondary);
+	if (mIsNoEntriesAdded) {
+		if (!instanceCount) {
+			return;
+		} else {
+			// Remove the no entries label
+			layout->removeAt(0);
+			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 text color from the theme
+				QColor previewPaneColor = HbColorScheme::color(
+												"qtc_cal_day_preview_text");
+				if (previewPaneColor.isValid()) {
+				    label->setTextColor(previewPaneColor);
+				}
+				
+				// 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--;
+			}
+			QString summary = mInstanceArray[i].summary();
+			if(!summary.length()) {
+				// No summary display "No subject"
+				summary.append(hbTrId("txt_calendar_dblist_unnamed"));
+			}
+			QDateTime startTime = mInstanceArray[i].startTime();
+			HbExtendedLocale systemLocale =HbExtendedLocale::system();
+			QString 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();
+		
+		// Add the no entries text to the preview pane
+		mNoEntriesLabel->setVisible(true);
+		layout->addItem(mNoEntriesLabel);
+		layout->setStretchFactor(mNoEntriesLabel,1);
+		mIsNoEntriesAdded = true;
+	}
+	layout->activate();
+}
+
+/*!
+ Fetches the instance for a given day
+ */
+void CalenPreviewPane::GetInstanceListL()
+{
+	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);
+}
+
+/*!
+ Returns the date which this preview pane is representing
+ */
+QDateTime CalenPreviewPane::Date()
+{
+	return mDate;
+}
+
+/*!
+ Starts the auto scroll on the preview pane
+ */
+void CalenPreviewPane::startAutoScroll()
+{
+	if (mIsNoEntriesAdded) {
+		scrollContentsTo(QPointF(0.0,0.0));
+				
+		// Call pan gesture with zero delta just to stop the scfrolling 
+		HbScrollArea::panGesture(QPointF(0.0,0.0));
+		return;
+	}
+
+	// Start the 2 seconds timer
+	mTwoSecTimer->setSingleShot(true);
+	connect(mTwoSecTimer, SIGNAL(timeout()), this, SLOT(onTwoSecondsTimeout()));
+	mTwoSecTimer->start(TWO_SECONDS_TIMER);
+}
+
+/*!
+ Slot to handle two seconds timer time out
+ Starts the scrolling animation in required direction
+ */
+void CalenPreviewPane::onTwoSecondsTimeout()
+{
+	mTwoSecTimer->stop();
+	disconnect(mTwoSecTimer, SIGNAL(timeout()), 
+										   this, SLOT(onTwoSecondsTimeout()));
+	// Start the scrolling in the proper direction
+	if (mScrollDirection == up) {
+		// Start scrolling upwards
+		mScrollDirection = down;
+		mNumOfScrolls++;
+		upGesture(SCROLLING_SPEED);
+	} else if (mScrollDirection == down) {
+		mScrollDirection = up;
+		mNumOfScrolls++;
+		// Start scrolling downwards
+		downGesture(SCROLLING_SPEED);
+	}
+}
+
+/*!
+ Slot to handle scrolling finished
+ Restarts the two seconds timer
+ */
+void CalenPreviewPane::scrollingFinished()
+{
+	// If we are here because of calling scrollContentsTo()
+	if (!mNumOfScrolls) {
+		return;
+	}
+	// Now start the two seconds timer again
+	mTwoSecTimer->setSingleShot(true);
+	connect(mTwoSecTimer, SIGNAL(timeout()), this, SLOT(onTwoSecondsTimeout()));
+	mTwoSecTimer->start(TWO_SECONDS_TIMER);
+}
+
+/*!
+ Function to listen mouse press events
+ */
+void CalenPreviewPane::mousePressEvent(QGraphicsSceneMouseEvent* event)
+{
+	mPressedPos = event->pos();
+}
+
+/*!
+ Function to listen mouse release events
+ */
+void CalenPreviewPane::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
+{
+	qreal posDiff = mPressedPos.x()-event->pos().x();
+	if (abs(posDiff) < 50) {
+		// Preview pane tapped
+		mServices.IssueCommandL(ECalenDayView);
+	} else if (posDiff < -50) {
+		// right gesture
+		mView->handlePreviewPaneGesture(true);
+	} else if (posDiff > 50) {
+		// left gesture
+		mView->handlePreviewPaneGesture(false);
+	}
+}
+
+/*!
+ Set monthview pointer
+ */
+void CalenPreviewPane::setView(CalenMonthView* view)
+{
+	mView = view;
+}
+
+/*!
+ Stops the auto scrolling
+ */
+void CalenPreviewPane::stopScrolling()
+{
+	if (isScrolling() || mTwoSecTimer->isActive()) {
+		scrollContentsTo(QPointF(0.0,0.0));
+		
+		// Call pan gesture with zero delta just to stop the scfrolling 
+		HbScrollArea::panGesture(QPointF(0.0,0.0));
+		mTwoSecTimer->stop();
+	}
+}
+
+// End of file  --Don't remove this.