mmplugins/imagingplugins/imagedisplay/plugins/mng/MngObjects.cpp
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     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /** 	@file
       
    17 	@internalTechnology */
       
    18 #include "MngPlayer.h"
       
    19 #include "MngPanic.h"
       
    20 #include "MngRenderer.h"
       
    21 
       
    22 #include "MngObjects.h"
       
    23 
       
    24 /*virtual*/
       
    25 void CMngObject::Reset()
       
    26 	{
       
    27 	}
       
    28 
       
    29 /*virual*/
       
    30 TBool CMngObject::IsSubFrame() const
       
    31 	{
       
    32 	return EFalse;
       
    33 	}
       
    34 
       
    35 /*virual*/
       
    36 TBool CMngObject::IsLayer() const
       
    37 	{
       
    38 	return EFalse;
       
    39 	}
       
    40 
       
    41 /*virual*/
       
    42 void CMngObject::OnAddToPlayerL(const CMngPlayer& /*aPlayer*/)
       
    43 	{
       
    44 	}
       
    45 
       
    46 /*virual*/
       
    47 TBool CMngLayer::IsLayer() const
       
    48 	{
       
    49 	return ETrue;
       
    50 	}
       
    51 
       
    52 /*static*/
       
    53 CMngTermination* CMngTermination::NewL(TTermChunk*& aTermChunk, TBool aMngSubframesNoLoops)  //Subframes with No Loops
       
    54 	{
       
    55 	TTermChunk* pChunk=aTermChunk;
       
    56 	CleanupDeletePushL(pChunk);
       
    57 	aTermChunk = NULL;
       
    58 	CMngTermination* self=new (ELeave) CMngTermination(*pChunk, aMngSubframesNoLoops); //Subframes with No Loops
       
    59 	CleanupStack::PopAndDestroy(pChunk);
       
    60 	return self;
       
    61 	}
       
    62 
       
    63 void CMngTermination::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& aResult)
       
    64 	{
       
    65 	TMngTerminationAction Action=iPostIterationAction;
       
    66 	
       
    67 	//Subframes with No Loops
       
    68 	if(iMngSubframesNoLoops)
       
    69 		{
       
    70 		iIterationCounter = 1;
       
    71 		Action =EMngShowLastFrameIndef;	
       
    72 		}
       
    73 
       
    74 	ASSERT(iIterationCounter > -1);
       
    75 	iIterationCounter -= (iIterationCounter>0 && iIterationCounter!=KMngInfinity);
       
    76 	aResult.iDelayInTicks = iDelay;
       
    77 	if (iIterationCounter)
       
    78 		{
       
    79 		Action=iTerminationAction;
       
    80 		}
       
    81 	switch (Action)
       
    82 		{
       
    83 		case EMngShowLastFrameIndef: 
       
    84 			aResult.iCommand=ECmdTerminate;
       
    85 			break;
       
    86 		case EMngCeaseDisplAnything: 
       
    87 			aResult.iCommand=ECmdTerminateClearOutput;
       
    88 			break;
       
    89 		case EMngShowFirstFrmAfterTerm:
       
    90 			aResult.iCommand=ECmdTerminateAfter1stFrame;
       
    91 			aPlayer.SetTerminationFrameNum(1);
       
    92 			break;
       
    93 		case EMngRepeatImmidiately:
       
    94 			aResult.iCommand=ECmdStartFromBeginning;
       
    95 			break;
       
    96 		default:
       
    97 			User::Leave(KErrCorrupt);
       
    98 		}
       
    99 	}
       
   100 
       
   101 void CMngTermination::Reset()
       
   102 	{
       
   103 	iIterationCounter = iIterationMax;
       
   104 	}
       
   105 
       
   106 /*static*/
       
   107 CMngObject* CMngKeyFrame::NewL(TMngChunk*& aFramChunk)
       
   108 	{
       
   109 	CleanupDeletePushL(aFramChunk);
       
   110 	TFramChunk* FrameChunk=static_cast<TFramChunk*>(aFramChunk);
       
   111 	aFramChunk=NULL;
       
   112 	CMngKeyFrame* self=new (ELeave) CMngKeyFrame(FrameChunk);
       
   113 	CleanupStack::Pop();
       
   114 	return self;
       
   115 	}
       
   116 
       
   117 inline
       
   118 CMngKeyFrame::CMngKeyFrame(TFramChunk* aFramChunk):iFramChunk(aFramChunk)
       
   119 	{
       
   120 	}
       
   121 
       
   122 CMngKeyFrame::~CMngKeyFrame()
       
   123 	{
       
   124 	delete iFramChunk;
       
   125 	}
       
   126 
       
   127 void CMngKeyFrame::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
       
   128 	{
       
   129 	aPlayer.SetFramingMode(iFramChunk->iFramingMode);
       
   130 	if (EMngFramDoNotChange != iFramChunk->iChangeInterFrmDelay)
       
   131 		{
       
   132 		aPlayer.SetInterFrameDelay(iFramChunk->iChangeInterFrmDelay, iFramChunk->iInterframeDelay);
       
   133 		}
       
   134 
       
   135 	if (EMngFramDoNotChange  != iFramChunk->iChangeClippingBoundaries)
       
   136 		{
       
   137 		aPlayer.SetLayerClipping(iFramChunk->iChangeClippingBoundaries, 
       
   138 									TRect(iFramChunk->iLeftLayerClippingB, iFramChunk->iTopLayerClippingB,
       
   139 										  iFramChunk->iRightLayerClippingB, iFramChunk->iBottomLayerClippingB),
       
   140 									iFramChunk->iAddLayerClipping);
       
   141 		}
       
   142 	}
       
   143 
       
   144 TBool CMngKeyFrame::IsSubFrame() const
       
   145 	{
       
   146 	return ETrue;
       
   147 	}
       
   148 
       
   149 /*static*/
       
   150 CMngObject* CMngBackground::NewL(TMngChunk*& aBackChunk)
       
   151 	{
       
   152 	TBackChunk* BackChunk=static_cast<TBackChunk*>(aBackChunk);
       
   153 	aBackChunk = NULL;
       
   154 	CleanupDeletePushL(BackChunk);
       
   155 	CMngBackground* self=new (ELeave) CMngBackground(*BackChunk);
       
   156 	CleanupStack::PopAndDestroy(BackChunk);
       
   157 	return self;
       
   158 	}
       
   159 
       
   160 void CMngBackground::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
       
   161 	{
       
   162 	aPlayer.Renderer()->SetBackground(iBackgroundColour, (iBgMandatory&EMngTermBgColorMandatoryImgAdvisory) );
       
   163 	}
       
   164 
       
   165 /*static*/
       
   166 CMngObject* CMngRawChunkHolder::NewL(TMngChunk*& aChunk)
       
   167 	{
       
   168 	TMngRawChunk* RawChunk=static_cast<TMngRawChunk*>(aChunk);
       
   169 	aChunk = NULL;
       
   170 	CleanupDeletePushL(RawChunk);
       
   171 	CMngRawChunkHolder* self=new (ELeave) CMngRawChunkHolder(RawChunk);
       
   172 	CleanupStack::Pop(RawChunk);
       
   173 	return self;
       
   174 	}
       
   175 
       
   176 void CMngRawChunkHolder::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
       
   177 	{
       
   178 	aPlayer.AddUniqueChunkProviderL(iChunk->iHeader.iChunkId, *this);
       
   179 	}
       
   180 
       
   181 TInt CMngRawChunkHolder::GetChunkData(const TText8* aChunkId, const TUint8*& aDataPtr, TInt& aSizeInBites)
       
   182 	{
       
   183 	TInt res=KErrNone;
       
   184 	if (iChunk->iHeader.iChunkId == TPtrC8(aChunkId, sizeof(TChunkId)) )
       
   185 		{
       
   186 		aDataPtr = iChunk->Data();
       
   187 		aSizeInBites = iChunk->iHeader.iLength;
       
   188 		}
       
   189 	else
       
   190 		{
       
   191 		res = KErrNotFound;
       
   192 		aSizeInBites = 0;
       
   193 		aDataPtr = NULL;
       
   194 		}
       
   195 	return res;
       
   196 	}
       
   197 
       
   198 CMngRawChunkHolder::~CMngRawChunkHolder()
       
   199 	{
       
   200 	delete iChunk;
       
   201 	}
       
   202 
       
   203 /*static*/
       
   204 CMngObject* CMngImageDefinition::NewL(TMngChunk*& aDefiChunk)
       
   205 	{
       
   206 	TDefiChunk* DefiChunk=static_cast<TDefiChunk*>(aDefiChunk);
       
   207 	aDefiChunk = NULL;
       
   208 	CleanupDeletePushL(DefiChunk);
       
   209 	CMngImageDefinition* self = new (ELeave) CMngImageDefinition(*DefiChunk);
       
   210 	CleanupStack::PopAndDestroy(DefiChunk);
       
   211 	return self;
       
   212 	}
       
   213 
       
   214 void CMngImageDefinition::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
       
   215 	{
       
   216 	CMngRenderer* Renderer = aPlayer.Renderer();
       
   217 	Renderer->SetOutputEnabled(!iDoNotShow);
       
   218 	Renderer->SetImageOrigin(iOrigin);
       
   219 	Renderer->SetImageClipRect(iClippingRect);
       
   220 	}
       
   221 
       
   222 void CMngImageDefinition::OnAddToPlayerL(const CMngPlayer& aPlayer)
       
   223 	{
       
   224 	if (iClippingRect.iBr.iX==-1 && iClippingRect.iTl.iX==0)
       
   225 		{
       
   226 		iClippingRect.iBr.iX= 0;
       
   227 		iClippingRect.iBr	= aPlayer.FrameSize().AsPoint();
       
   228 		}
       
   229 	}
       
   230 
       
   231 /*static*/
       
   232 CMngObject* CMngLoopEntry::NewL(TMngChunk*& aLoopChunk)
       
   233 	{
       
   234 	TLoopChunk* LoopChunk=static_cast<TLoopChunk*>(aLoopChunk);
       
   235 	aLoopChunk = NULL;
       
   236 	CleanupDeletePushL(LoopChunk);
       
   237 	CMngLoopEntry* self = new (ELeave) CMngLoopEntry(*LoopChunk);
       
   238 	CleanupStack::PopAndDestroy(LoopChunk);
       
   239 	return self;
       
   240 	}
       
   241 
       
   242 void CMngLoopEntry::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
       
   243 	{
       
   244 	ASSERT(iIterationsLeft>-1);
       
   245 	TLoopStackItem item;
       
   246 	item.iLoopObjectLabel		= ObjectLabel();
       
   247 	item.iNestLevel				= iNestLevel;
       
   248 	if (iIterationsLeft > 0)
       
   249 		{
       
   250 		--iIterationsLeft;
       
   251 		}
       
   252 	if (iIterationsLeft > 0)
       
   253 		{
       
   254 		item.iMoreIterationsNeeded = ETrue;
       
   255 		}
       
   256 	else
       
   257 		{
       
   258 		iIterationsLeft = iIterationCount;
       
   259 		item.iMoreIterationsNeeded = EFalse;
       
   260 		}
       
   261 	aPlayer.LoopStack().PushL(item);
       
   262 	}
       
   263 
       
   264 void CMngLoopEntry::Reset()
       
   265 	{
       
   266 	iIterationsLeft = iIterationCount;
       
   267 	}
       
   268 
       
   269 /*static*/
       
   270 CMngObject* CMngLoopEnd::NewL(TMngChunk*& aEndlChunk)
       
   271 	{
       
   272 	TEndlChunk* EndlChunk=static_cast<TEndlChunk*>(aEndlChunk);
       
   273 	aEndlChunk = NULL;
       
   274 	CleanupDeletePushL(EndlChunk);
       
   275 	CMngLoopEnd* self = new (ELeave) CMngLoopEnd(*EndlChunk);
       
   276 	CleanupStack::PopAndDestroy(EndlChunk);
       
   277 	return self;
       
   278 	}
       
   279 
       
   280 void CMngLoopEnd::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& aResult)
       
   281 	{
       
   282 	TLoopStackItem item;
       
   283 	if (KErrNone != aPlayer.LoopStack().Pop(item))
       
   284 		{
       
   285 		User::Leave(KErrCorrupt);
       
   286 		}
       
   287 	if (item.iNestLevel != iNestLevel)
       
   288 		{
       
   289 		User::Leave(KErrCorrupt);
       
   290 		}
       
   291 	if (item.iMoreIterationsNeeded)
       
   292 		{
       
   293 		aResult.iCommand	= ECmdJumpToObject;
       
   294 		aResult.iObjectLabel= item.iLoopObjectLabel;
       
   295 		}
       
   296 	}