diff -r 5456b4e8b3a8 -r 3321d3e205b6 idlehomescreen/examples/carouselwidgetexample/renderer/src/carouselwidget.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/idlehomescreen/examples/carouselwidgetexample/renderer/src/carouselwidget.cpp Tue Sep 14 20:58:58 2010 +0300 @@ -0,0 +1,443 @@ +/* + * Copyright (c) 2010 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: Carousel widget for Symbian Homescreen + * + */ + +#include +#include +#include +#include +#include +#include +#include "carouselwidget.h" + +const TSize KIconSize(70,70); +const TInt KItemPadding( 6 ); + +_LIT( KLaunchByIndex, "LaunchByIndex("); + +template< class PtrT > inline PtrT* UnpackPtr( + const TDesC8& aBuf ) + { + TAny* result( NULL ); + + if ( aBuf.Size() == sizeof( TAny* ) ) + { + // Effectively writes aBuf contents to result + TPckg< TAny* >( result ).Copy( aBuf ); + } + + return static_cast< PtrT* >( result ); + } +// ============================ MEMBER FUNCTIONS =============================== +CCarouselItem::CCarouselItem( CFbsBitmap* aBitmap, CFbsBitmap* aMask) + :iBitmap( aBitmap ), iMask( aMask ) + { + } + +CCarouselItem::~CCarouselItem() + { + delete iBitmap; + delete iMask; + delete iText; + } + +void CCarouselItem::SetTextL( const TDesC& aText ) + { + delete iText; + iText = NULL; + iText = aText.AllocL(); + } + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// Symbian static 1st phase constructor +// ----------------------------------------------------------------------------- +// +CCarouselWidget* CCarouselWidget::NewL() + { + CCarouselWidget* self = new( ELeave ) CCarouselWidget(); + CleanupStack::PushL( self ); + self->ConstructL(); + CleanupStack::Pop( self ); + return self; + } + +// ----------------------------------------------------------------------------- +// C++ destructor +// ----------------------------------------------------------------------------- +// +CCarouselWidget::~CCarouselWidget() + { + delete iPhysics; + iStripeItems.ResetAndDestroy(); + //delete iCover; + } + +// ----------------------------------------------------------------------------- +// Symbian 2nd phase constructor can leave. +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::ConstructL() + { + + } + +// ----------------------------------------------------------------------------- +// Handles key events. +// ----------------------------------------------------------------------------- +// +TKeyResponse CCarouselWidget::OfferKeyEventL( const TKeyEvent& /*aKeyEvent*/, + TEventCode /*aType*/ ) + { + return EKeyWasConsumed; + } + +// ----------------------------------------------------------------------------- +// Set window for this control +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::SetContainerWindowL( const CCoeControl &aContainer ) + { + CCoeControl::SetContainerWindowL( aContainer ); + } + +// ----------------------------------------------------------------------------- +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::HandlePointerEventL( const TPointerEvent& aPointerEvent ) + { + if( !iPhysics ) + { + return; + } + TPoint stylusPos( aPointerEvent.iPosition ); + switch( aPointerEvent.iType ) + { + case TPointerEvent::EButton1Down: + { + iPhysics->StopPhysics(); + iPhysics->ResetFriction(); + iStartPosition = stylusPos; + iStartTime.HomeTime(); + iStylusPosition = stylusPos; + iDrawHighlight = ETrue; + } + break; + + case TPointerEvent::EButton1Up: + { + iDrawHighlight = EFalse; + TInt distance = iStartPosition.iX - stylusPos.iX; + if( Abs(distance) <= iPhysics->DragThreshold() ) + { + LaunchItemL( stylusPos ); + } + else + { + TPoint drag( distance, 0 ); + iPhysics->StartPhysics( drag, iStartTime ); + } } + break; + case TPointerEvent::EDrag: + case TPointerEvent::EMove: + { + TPoint dragTh( iStartPosition - stylusPos ); + if( Abs(dragTh.iX) > iPhysics->DragThreshold() || + Abs(dragTh.iY) > iPhysics->DragThreshold()) + { + iDrawHighlight = EFalse; + } + TInt deltaX( iStylusPosition.iX - stylusPos.iX ); + iStylusPosition = stylusPos; + TPoint deltaPoint( deltaX, 0 ); + iPhysics->RegisterPanningPosition( deltaPoint ); + } + break; + default: + break; + } + + CCoeControl::HandlePointerEventL( aPointerEvent ); + } + +// ----------------------------------------------------------------------------- +// Returns the number of component controls +// ----------------------------------------------------------------------------- +// +TInt CCarouselWidget::CountComponentControls() const + { + return 0; + } + +// ----------------------------------------------------------------------------- +// Returns the specified control +// ----------------------------------------------------------------------------- +// +CCoeControl* CCarouselWidget::ComponentControl( TInt /*aIndex*/ ) const + { + return NULL; + } + +// ----------------------------------------------------------------------------- +// Skin change notification. +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::SkinChanged() + { + } + +// ----------------------------------------------------------------------------- +// CCarouselWidget::EnterPowerSaveModeL +// +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::EnterPowerSaveModeL() + { + } + +// ----------------------------------------------------------------------------- +// CCarouselWidget::ExitPowerSaveModeL +// +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::ExitPowerSaveModeL() + { + } + +// ----------------------------------------------------------------------------- +// Called if focus changes +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::FocusChanged( TDrawNow /*aDrawNow*/ ) + { + } + +// ----------------------------------------------------------------------------- +// Called if position or size changes +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::SizeChanged() + { + iViewPort = Rect(); + TRAP_IGNORE( InitPhysicEngineL() ); + DrawNow(); + } + +// ----------------------------------------------------------------------------- +// Sets the external event handler interface. +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::SetEventHandler( MXnExtEventHandler* aEventHandler ) + { + iEventHandler = aEventHandler; + } + +// ----------------------------------------------------------------------------- +// Data stream from the publisher +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::SetDataL( const TDesC8& aData, const TDesC& aType, TInt aIndex ) + { + /// Unpack the data stream, works because publisher is in same process. + CGulIcon* icon( UnpackPtr( aData ) ); + CleanupStack::PushL( icon ); + AknIconUtils::SetSize( icon->Bitmap(), KIconSize); + + CCarouselItem* item = new ( ELeave ) CCarouselItem(/* *iEditor,*/ icon->Bitmap(), icon->Mask() ); + CleanupStack::PopAndDestroy( icon ); + + if( aType == _L("Appstripe/widget")) + { + if( iStripeItems.Count() <= aIndex ) + { + iStripeItems.AppendL( item ); + InitPhysicEngineL(); + } + else + { + CCarouselItem* citem = iStripeItems[ aIndex ]; + delete citem; + iStripeItems.Remove( aIndex ); + iStripeItems.Insert( item, aIndex ); + } + DrawNow(); + } + } + +// ----------------------------------------------------------------------------- +// Draws the carousel component +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::Draw( const TRect& /*aRect*/ ) const + { + CWindowGc& gc( SystemGc() ); + gc.SetClippingRect( iViewPort ); + TRect bitmapRect( TPoint(0,0), KIconSize ); + TPoint point( iViewPort.iTl ); + point.iX -= iViewPosition.iX; + + TInt count = iStripeItems.Count(); + for( TInt i = 0; i < count; i++ ) + { + CFbsBitmap* bitmap = iStripeItems[i]->iBitmap; + CFbsBitmap* mask = iStripeItems[i]->iMask; + + TRect drawRect( point, KIconSize ); + if( iDrawHighlight && drawRect.Contains( iStylusPosition )) + { + TRect innerRect( drawRect ); + innerRect.Shrink( 5, 5 ); + + MAknsSkinInstance* skin( AknsUtils::SkinInstance() ); + AknsDrawUtils::DrawFrame( skin, gc, drawRect, innerRect, + KAknsIIDQsnFrHomePressed, KAknsIIDDefault ); + } + if( iViewPort.Contains( drawRect.iBr )|| + iViewPort.Contains( drawRect.iTl )) + { + gc.BitBltMasked( point, bitmap, bitmapRect, mask, EFalse); + } + point.iX += KIconSize.iWidth + KItemPadding; + } + } + +// --------------------------------------------------------------------------- +// ViewPositionChanged +// --------------------------------------------------------------------------- +// +void CCarouselWidget::ViewPositionChanged( + const TPoint& aNewPosition, TBool aDrawNow, TUint /*aFlags*/ ) + { + iCurrentPosition = aNewPosition; + iViewPosition.iX = aNewPosition.iX - iViewPort.Width()/2; + if( aDrawNow ) + { + DrawNow( iViewPort ); + } + } + +// --------------------------------------------------------------------------- +// PhysicEmulationEnded +// --------------------------------------------------------------------------- +// +void CCarouselWidget::PhysicEmulationEnded() + { + } + +// --------------------------------------------------------------------------- +// ViewPosition +// --------------------------------------------------------------------------- +// +TPoint CCarouselWidget::ViewPosition() const + { + return iCurrentPosition; + } + +// --------------------------------------------------------------------------- +// InitPhysicEngineL +// --------------------------------------------------------------------------- +// +void CCarouselWidget::InitPhysicEngineL() + { + // Init physic engine + if ( !iPhysics && CAknPhysics::FeatureEnabled() ) + { + iPhysics = CAknPhysics::NewL( *this, this ); + } + if( !iPhysics ) + { + return; + } + TSize viewPortSize = iViewPort.Size(); + TInt totalWidth( iStripeItems.Count() * (KIconSize.iWidth + KItemPadding )); + TSize totalSize( totalWidth, viewPortSize.iHeight ); + iPhysics->InitPhysicsL( totalSize, viewPortSize, ETrue ); + iCurrentPosition = TPoint( viewPortSize.iWidth / 2, viewPortSize.iHeight / 2 ); + } + +// --------------------------------------------------------------------------- +// +// --------------------------------------------------------------------------- +// +TInt CCarouselWidget::ItemIndex( TPoint& aPoint ) + { + TPoint itemStartPoint( iViewPort.iTl ); + itemStartPoint.iX -= iViewPosition.iX; + + TRect dropRect( itemStartPoint, KIconSize ); + dropRect.Resize( KItemPadding, 0 ); + TInt index( 0 ); + do + { + if( dropRect.Contains( aPoint )) + { + return index; + } + dropRect.Move( KIconSize.iWidth+KItemPadding, 0); + index++; + } + while( index < iStripeItems.Count() ); + return KErrNotFound; + } + +// ----------------------------------------------------------------------------- +// Launches the item, which is in aPosition +// ----------------------------------------------------------------------------- +// +void CCarouselWidget::LaunchItemL( TPoint& aPosition ) + { + TInt index = ItemIndex( aPosition ); + // carousel plugin expects indexes to start from 1 + index++; + TInt len( KLaunchByIndex().Length()+3 ); + TBuf<17> event; + event.Append( KLaunchByIndex ); + event.AppendNum( index ); + event.Append( _L(")")); + iEventHandler->HandleEventL( event, _L8("Appstripe")); + } + +// ----------------------------------------------------------------------------- +// C++ default constructor +// ----------------------------------------------------------------------------- +// +CCarouselWidget::CCarouselWidget() + { + } + +// ============================ PUBLIC FUNCTIONS =============================== +const TImplementationProxy KImplementationTable[] = + { +#ifdef __EABI__ + IMPLEMENTATION_PROXY_ENTRY( 0xEabba433, CCarouselWidget::NewL ) +#else + { { 0xEabba433 }, CCarouselWidget::NewL } +#endif + }; + +// ----------------------------------------------------------------------------- +// Returns the list of implementations provided by the plugin +// ----------------------------------------------------------------------------- +// +EXPORT_C const TImplementationProxy* ImplementationGroupProxy( + TInt& aTableCount ) + { + aTableCount = sizeof( KImplementationTable ) / sizeof( TImplementationProxy ); + return KImplementationTable; + } +