--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/src/CamSelfTimer.cpp Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,533 @@
+/*
+* Copyright (c) 2007-2008 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: Provides the flashing icon/LED & timing capability of the*
+*/
+
+
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <e32std.h>
+#include <eikbtgpc.h>
+#include <cameraapp.rsg>
+#include <vgacamsettings.rsg>
+#include "CamSelfTimer.h"
+#include "CamPanic.h"
+#include "CamAppUi.h"
+#include "CamUtility.h"
+#include "Cam.hrh" // For ECamSelfTimerSoundId def
+#include "OstTraceDefinitions.h"
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "CamSelfTimerTraces.h"
+#endif
+
+// CONSTANTS
+
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CCamSelfTimer* CCamSelfTimer::NewL( CCamAppController& aController )
+ {
+ CCamSelfTimer* self = new( ELeave ) CCamSelfTimer( aController );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+
+// Destructor
+CCamSelfTimer::~CCamSelfTimer()
+ {
+ PRINT( _L("Camera => ~CCamSelfTimer") );
+ // If self-timer is active, stop it
+ if ( IsActive() )
+ {
+ Cancel();
+ }
+
+ // close up observers array
+ iObservers.Close();
+
+ delete iPeriodicTimer;
+ PRINT( _L("Camera <= ~CCamSelfTimer") );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::StartSelfTimer
+// Will be called to start self timer. If self timer is already running, the
+// timer is cancelled and the capture operation is run immediately.
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::StartSelfTimer()
+ {
+ // Check it is not already running
+ if ( ECamSelfTimerStandby == iState )
+ {
+ ChangeState( ECamSelfTimerActive1 );
+ }
+ // If the timer is already running, then we must cancel the timer
+ // and do the capture operation now!
+ else
+ {
+ // Cancel the timer
+ Cancel();
+
+ if( ECamControllerImage == iMode )
+ {
+ switch ( iImageMode )
+ {
+ case ECamImageCaptureBurst:
+ case ECamImageCaptureTimeLapse:
+ {
+ // Start the autofocus operation now, the capture will be queued
+ // after focus completes
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP7_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_APP_AF 1" );
+ iController.StartAutoFocus();
+ // Softkeys are blank/cancel if doing burst capture
+ // but cancel means cancel ongoing burst, not cancel self-timer
+ // replace the buttons with the correct command set
+ CCamAppUi* appUi = static_cast<CCamAppUi*>( CEikonEnv::Static()->AppUi() );
+ if ( appUi )
+ {
+ // blank the softkeys in preparation for capture
+ TRAP_IGNORE( appUi->SetSoftKeysL( R_CAM_SOFTKEYS_BLANK_STOP ) );
+ }
+ }
+ //lint -fallthrough
+ case ECamImageCaptureSingle:
+ {
+ // If still Self-Timer is interrupted, take the photo NOW.
+ // If we were in multi-shot, this capture is queued
+ OstTrace0( CAMERAAPP_PERFORMANCE, CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_APP_SHOT_TO_SNAPSHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP1_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_PRI_SHOT_TO_SNAPSHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP2_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_PRI_SHOT_TO_SAVE 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP3_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_PRI_SHOT_TO_SHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP4_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_APP_SHOT_TO_STILL 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP5_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_APP_CAPTURE_START 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP6_CCAMSELFTIMER_STARTSELFTIMER, "e_CAM_PRI_SERIAL_SHOOTING 1" );
+
+ iController.Capture();
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ else
+ {
+ // Start recording now
+ TRAP_IGNORE( iController.StartVideoRecordingL() );
+ }
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::SetModeL
+// Called when the current capture method (Video or Still) changes.
+// Updates the internal state (so correct capture method is called when self
+// timer expires) and if timer is already running, cancels the outstanding
+// timer (as the view has changed).
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::SetModeL( TCamCameraMode aMode,
+ TCamImageCaptureMode aImageMode,
+ TCamSelfTimerFunctions aFunc )
+ {
+ iMode = aMode;
+ iImageMode = aImageMode;
+
+ // Based on the supplied selftimer function (specifying periods) load the
+ // individual data from PSI.
+ TPckgBuf <TSelfTimerSetting> pckg;
+
+ TInt ret = KErrNone;
+ switch ( aFunc )
+ {
+ case ECamSelfTimerMode1:
+ ret = CamUtility::GetPsiAnyL( ECamPsiSelfTimerPeriod1, &pckg );
+ break;
+ case ECamSelfTimerMode2:
+ ret = CamUtility::GetPsiAnyL( ECamPsiSelfTimerPeriod2, &pckg );
+ break;
+ case ECamSelfTimerMode3:
+ ret = CamUtility::GetPsiAnyL( ECamPsiSelfTimerPeriod3, &pckg );
+ break;
+ case ECamSelfTimerDisabled:
+ //Fall-through
+ default:
+ break;
+ }
+ // Check it is supported.
+ __ASSERT_ALWAYS( ret == KErrNone, CamPanic( ECamPanicUnhandledCommand ) );
+
+ iSettings = pckg();
+ // Set time remaining and update observers.
+ iTimeRemaining = iSettings.iThreshold[ECamSelfTimerMode1];
+ NotifyObservers( ECamSelfTimerEventTimerOn );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::Cancel
+// Cancels the timer if already running, and returns the self timer to
+// self-timer standby state.
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::Cancel()
+ {
+ ChangeState( ECamSelfTimerStandby );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::IsActive
+// Returns whether or not the SelfTimer is currently active (counting down)
+// -----------------------------------------------------------------------------
+//
+TBool CCamSelfTimer::IsActive()
+ {
+ if ( iState == ECamSelfTimerStandby )
+ {
+ return EFalse;
+ }
+ else
+ {
+ return ETrue;
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::CCamSelfTimer
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CCamSelfTimer::CCamSelfTimer( CCamAppController& aController ) :
+ iState( ECamSelfTimerStandby ),
+ iController( aController )
+ {
+ iCallback = TCallBack( TimerCallback, this );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::ConstructL()
+ {
+ iPeriodicTimer = CPeriodic::NewL( CActive::EPriorityHigh );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::ChangeState
+// Called to move between the internal self-timer states.
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::ChangeState( TCamSelfTimer aState )
+ {
+ // if the timer object has not been created
+ __ASSERT_DEBUG( iPeriodicTimer != NULL, CamPanic( ECamPanicNullPointer ) );
+
+ // If the state has been changed
+ iState = aState;
+
+ switch ( iState )
+ {
+ case ECamSelfTimerActive1:
+ iController.StopIdleTimer(); // no standby mode if time is running
+ iIndication = ETrue;
+ //lint -fallthrough
+ case ECamSelfTimerActive2:
+ case ECamSelfTimerActive3:
+ iTimeRemaining = iSettings.iThreshold[iState];
+ // Use smallest time period as tick period. This assumes that
+ // smallest time period is divisble into larger time period.
+ iTimerTickPeriod = iSettings.iFlashPeriod[iState]; // Need half-periods
+ if ( iTimerTickPeriod.Int() > iSettings.iBeepPeriod[iState] )
+ {
+ iTimerTickPeriod = iSettings.iBeepPeriod[iState];
+ }
+
+ if ( iTimerTickPeriod.Int() == KMaxTInt ) // If state is timer based (always on)
+ {
+ iIndication = ETrue;
+ iPeriodicTimer->Cancel();
+ iTimerTickPeriod = iTimeRemaining;// Force period to be time left
+
+ // Reschedule the timer to go off when the remaining time has completed
+ iPeriodicTimer->Start( iTimeRemaining, iTimeRemaining, iCallback );
+ }
+ else if ( iTimerTickPeriod.Int() == 0 ) // Always off
+ {
+ iIndication = EFalse;
+ iPeriodicTimer->Cancel();
+ iTimerTickPeriod = iTimeRemaining;// Force period to be time left
+
+ // Reschedule the timer to go off when the remaining time has completed
+ iPeriodicTimer->Start( iTimeRemaining, iTimeRemaining, iCallback );
+ }
+ else if ( iTimerTickPeriod.Int() != KErrNotSupported ) // This is a valid period
+ {
+ TInt period = iTimerTickPeriod.Int();
+ iPeriodicTimer->Cancel();
+ iPeriodicTimer->Start( period, period, iCallback );
+ }
+ // otherwise, do nothing
+ else
+ {
+ // empty statement to remove Lint error.
+ }
+
+ // Check if we need to start autofocus
+ if ( iSettings.iAutoFocus != KErrNotSupported &&
+ iTimeRemaining.Int() == iSettings.iAutoFocus )
+ {
+ if ( ECamControllerVideo != iMode )
+ {
+ // Start the AutoFocus operation
+ OstTrace0( CAMERAAPP_PERFORMANCE, CCAMSELFTIMER_CHANGESTATE, "e_CAM_APP_AF 1" );
+ iController.StartAutoFocus();
+ }
+ }
+ DoIndication( iIndication );
+ break;
+
+ case ECamSelfTimerStandby:
+ iPeriodicTimer->Cancel();
+ if ( !iController.IsSlideInSelfTimerPreview() )
+ {
+ iController.SetDynamicSettingToDefault(ECamSettingItemDynamicSelfTimer);
+ }
+ NotifyObservers( ECamSelfTimerEventTimerOff );
+ break;
+
+ default:
+ break;
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// TimerCallback Callback used for self timer class to be informed of periodic
+// timer events
+// Returns: TInt: KErrNone if successful.
+// -----------------------------------------------------------------------------
+//
+TInt CCamSelfTimer::TimerCallback( TAny* aPtr )
+ {
+ CCamSelfTimer* timer = static_cast< CCamSelfTimer* >( aPtr );
+ __ASSERT_DEBUG( timer != NULL, CamPanic( ECamPanicNullPointer ) );
+
+ timer->Tick();
+
+ return KErrNone;
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::Tick
+// Called when the periodic timer "ticks", used to
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::Tick()
+ {
+ PRINT(_L("Camera => CCamSelfTimer::Tick()"));
+ // Adjust the time remaining
+ iTimeRemaining = iTimeRemaining.Int() - iTimerTickPeriod.Int();
+
+ // Adjust the time elapsed since last beep and indicator state change.
+ iTimeElapsedSinceIndication += iTimerTickPeriod.Int();
+
+ // Adjust the indicator state if necessary.
+ __ASSERT_DEBUG( iState < ECamSelfTimerStandby, CamPanic( ECamPanicUnhandledCreateSettingItem ) );
+ if ( iTimeElapsedSinceIndication >= iSettings.iFlashPeriod[iState] )
+ {
+ iIndication = !iIndication;
+ iTimeElapsedSinceIndication = 0;
+ }
+
+ // If we have reached the end of the timer period...
+ if ( iTimeRemaining == TTimeIntervalMicroSeconds32( 0 ) )
+ {
+ // Cancel the timer, reset internal state.
+ Cancel();
+
+ // The Controller takes care of the synchronisation of this.
+ // If AutoFocus is complete, start Capture now
+ // If AutoFocus still ongoing, it will wait until autofocus is
+ // complete THEN Capture.
+ if ( ECamControllerImage == iMode )
+ {
+ CCamAppUi* appUi = static_cast<CCamAppUi*>( CEikonEnv::Static()->AppUi() );
+ if( appUi )
+ {
+ // Blank all softkeys if doing still capture
+ if ( iImageMode == ECamImageCaptureSingle )
+ {
+ // blank the softkeys in preparation for capture
+ TRAP_IGNORE( appUi->SetSoftKeysL( R_CAM_SOFTKEYS_BLANK ) );
+ }
+
+ // Softkeys are blank/cancel if doing burst capture
+ // but cancel means cancel ongoing burst, not cancel self-timer
+ else if ( ECamImageCaptureBurst == iImageMode
+ || ECamImageCaptureTimeLapse == iImageMode )
+ {
+ // blank the softkeys in preparation for capture
+ TRAP_IGNORE( appUi->SetSoftKeysL( R_CAM_SOFTKEYS_BLANK_STOP ) )
+ }
+ }
+
+ // Ensure everything is OFF
+ DoIndication( EFalse );
+
+ // Do capture
+ OstTrace0( CAMERAAPP_PERFORMANCE, CCAMSELFTIMER_TICK, "e_CAM_APP_SHOT_TO_SNAPSHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP1_CCAMSELFTIMER_TICK, "e_CAM_PRI_SHOT_TO_SNAPSHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP2_CCAMSELFTIMER_TICK, "e_CAM_PRI_SHOT_TO_SAVE 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP3_CCAMSELFTIMER_TICK, "e_CAM_PRI_SHOT_TO_SHOT 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP4_CCAMSELFTIMER_TICK, "e_CAM_APP_SHOT_TO_STILL 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP5_CCAMSELFTIMER_TICK, "e_CAM_APP_CAPTURE_START 1" );
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP6_CCAMSELFTIMER_TICK, "e_CAM_PRI_SERIAL_SHOOTING 1" );
+
+ iController.Capture();
+ }
+ else // video mode
+ {
+ TRAP_IGNORE( iController.StartVideoRecordingL() )
+ }
+ }
+
+ // The timer is ongoing
+ else
+ {
+ TInt remaining = iTimeRemaining.Int();
+ // Work out if we need to change period.
+ if ( remaining == iSettings.iThreshold[ECamSelfTimerActive2]
+ && KErrNotSupported != iSettings.iThreshold[ECamSelfTimerActive2] )
+ {
+ ChangeState( ECamSelfTimerActive2 );
+ }
+ else if ( remaining == iSettings.iThreshold[ECamSelfTimerActive3]
+ && KErrNotSupported != iSettings.iThreshold[ECamSelfTimerActive3])
+ {
+ ChangeState( ECamSelfTimerActive3 );
+ }
+ else
+ {
+ // Update the indicators (done as part of change state as well)
+ DoIndication( iIndication );
+ }
+
+ // Check if we need to start autofocus
+ if ( KErrNotFound != iSettings.iAutoFocus
+ && remaining == iSettings.iAutoFocus )
+ {
+ if ( ECamControllerImage == iMode )
+ {
+ // Start the AutoFocus operation
+ OstTrace0( CAMERAAPP_PERFORMANCE, DUP7_CCAMSELFTIMER_TICK, "e_CAM_APP_AF 1" );
+ iController.StartAutoFocus();
+ }
+ }
+ }
+ PRINT(_L("Camera <= CCamSelfTimer::Tick()"));
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::DoIndication
+// Send event to self timer observers
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::DoIndication( TBool aOn )
+ {
+ iIndication = aOn;
+
+ if ( aOn )
+ {
+ NotifyObservers( ECamSelfTimerEventTimerOn );
+ iController.PlaySound( ECamSelfTimerSoundId, EFalse );
+ }
+ else
+ {
+ NotifyObservers( ECamSelfTimerEventTimerOff );
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::AddObserverL
+// Add a self timer observer
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::AddObserverL( const MCamSelfTimerObserver* aObserver )
+ {
+ User::LeaveIfError( iObservers.Append( aObserver ) );
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::RemoveObserver
+// Remove a self timer observer
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::RemoveObserver( const MCamSelfTimerObserver* aObserver )
+ {
+ TInt i;
+ TInt numobservers = iObservers.Count();
+ for ( i = 0; i < numobservers; i++ )
+ {
+ // if the observer is the one to remove
+ if ( iObservers[i] == aObserver )
+ {
+ iObservers.Remove( i );
+ return;
+ }
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::NotifyObservers
+// Send self timer event to observers
+// -----------------------------------------------------------------------------
+//
+void CCamSelfTimer::NotifyObservers( TCamSelfTimerEvent aEvent )
+ {
+ const TInt KMicroSecsPerSec = 1000000;
+ TInt timeRem = iTimeRemaining.Int() / KMicroSecsPerSec;
+ TInt i;
+ TInt numobservers = iObservers.Count();
+ for ( i = 0; i < numobservers; i++ )
+ {
+ iObservers[i]->HandleSelfTimerEvent( aEvent, timeRem );
+ }
+ }
+
+// End of File