Symaptic: os/graphics/windowing/windowserver/nga/SERVER/openwfc/gc.cpp@bde4ae8d615e

     1 // Copyright (c) 1994-2009 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 // GC and Graphics functions

    15 //

    16 //

    18 #include <e32std.h>

    19 #include <s32mem.h>

    20 #include "gc.h"

    21 #include "backedupwindow.h"

    22 #include "windowgroup.h"

    23 #include "ScrDev.H"

    24 #include "wstop.h"

    25 #include "panics.h"

    26 #include "graphics/WSGRAPHICDRAWER.H"

    27 #include "wsfont.h"

    29 class TPlacedAttributes;

    31 CFbsBitmap *CWsGc::iScratchBitmap=NULL;

    32 CFbsBitmap *CWsGc::iScratchMaskBitmap=NULL;

    34 GLREF_C TInt ExternalizeRegionL(RWriteStream& aWriteStream, const RWsRegion& aRegion);

    36 /*CWsGc*/

    38 CWsGc* CWsGc::NewL(CWsClient *aOwner)

    39 	{

    40 	CWsGc* self = new(ELeave) CWsGc(aOwner);

    41 	CleanupStack::PushL(self);

    42 	self->ConstructL();

    43 	CleanupStack::Pop(self);

    44 	return self;

    45 	}

    47 void CWsGc::InitStaticsL()

    48 	{

    49 	iScratchBitmap=new(ELeave) CFbsBitmap();

    50 	iScratchMaskBitmap=new(ELeave) CFbsBitmap();

    51 	}

    53 void CWsGc::DeleteStatics()

    54 	{

    55 	delete iScratchBitmap;

    56 	delete iScratchMaskBitmap;

    57 	}

    59 CWsGc::CWsGc(CWsClient *owner) : CWsObject(owner,WS_HANDLE_GC)

    60 	{

    61 	__DECLARE_NAME(_S("CWsGc"));

    62 	}

    64 void CWsGc::ConstructL()

    65 	{

    66 	NewObjL();

    67 	iBackedUpWinGc=CFbsBitGc::NewL();

    68 	iInternalStatus.ResetInternalStatus(iWin);

    69 	}

    71 void CWsGc::Activate(CWsClientWindow *win)

    72 	{

    73 	if (iWin!=NULL)

    74 		{

    75 		if (CWsClient::iCurrentCommand.iOpcode==0)

    76 			{

    77 			WS_PANIC_ALWAYS(EWsPanicDrawCommandsInvalidState);

    78 			}

    79 		else

    80 			{

    81 			OwnerPanic(EWservPanicGcActive);

    82 			}

    83 		}

    85 	iWin = win;

    86 	if (iWin->Redraw()->OutputDevice()) // Activated on a backed up window

    87 		iBackedUpWinGc->ActivateNoJustAutoUpdate(iWin->Redraw()->OutputDevice());

    88 	iWin->GcActivated(this);

    89 	iInternalStatus.iBrushColor = iWin->BackColor();

    90 	if (iWin->Redraw()->OutputDevice())

    91 		iBackedUpWinGc->SetBrushColor(iInternalStatus.iBrushColor);

    92 	iOrigin.SetXY(0,0);

    93 	ResetClippingRect();

    94 	if(iWsOwner)

    95 		{

    96 		CWsWindowGroup *winGp = iWin->WinGroup();

    97 		if(!winGp->Device())

    98 			OwnerPanic(EWservPanicGroupWinScreenDeviceDeleted);

    99 		SetReply(winGp->Device()->ClientDevicePointer());

   100 		}

   101 	}

   103 void CWsGc::Activate(const TInt &aHandle)

   104 	{

   105 	CWsClientWindow *win;

   106 	iWsOwner->HandleToClientWindow(aHandle,&win);

   107 	if (!win->BaseParent())

   108 		OwnerPanic(EWservPanicParentDeleted);

   109 	Activate(win);

   110 	}

   112 void CWsGc::Reactivate()

   113 	{

   114 	WS_ASSERT_DEBUG(iWin != NULL, EWsPanicDrawCommandsInvalidState);

   115 	if (iWin->Redraw()->OutputDevice()) // Activated on a backed up window

   116 		iBackedUpWinGc->ActivateNoJustAutoUpdate(iWin->Redraw()->OutputDevice());

   117 	}

   119 CWsGc::~CWsGc()

   120 	{

   121 	if (iWin!=NULL)

   122 		Deactivate();

   123 	delete iBackedUpWinGc;

   124 	delete iPolyPoints;

   125 	}

   127 void CWsGc::Deactivate()

   128 	{

   129 	if (iWin)	// Protect against deactivating an already deactivated GC, this is allowed to aid clean up code.

   130 		{

   131 		CWsFontCache::Instance()->ReleaseFont(iFont);

   132 		iBackedUpWinGc->Reset();

   133 		iInternalStatus.ResetInternalStatus(iWin);

   134 		iWin->GcDeactivated(this);

   135 		CancelClippingRegion();

   136 		iWin->Redraw()->GcDeactivate(this);

   137 		iWin=NULL;

   138 		}

   139 	}

   141 void CWsGc::SetClippingRect(const TRect &aRect)

   142 	{

   143 	iClippingRect=aRect;

   144 	iClippingRect.Move(iOrigin);

   145 	iClippingRectSet=ETrue;

   146 	}

   148 void CWsGc::ResetClippingRect()

   149 	{

   150 	iClippingRectSet=EFalse;

   151 	}

   153 void CWsGc::SetClippingRegionL(TInt aRegionCount)

   154 	{

   155 	RWsRegion *newRegion=GetRegionFromClientL(iWsOwner, aRegionCount);

   156 	CancelClippingRegion();

   157 	iUserDefinedClippingRegion=newRegion;

   159 	if (iUserDefinedClippingRegion)

   160 		{

   161 		iUserDefinedClippingRegion->Offset(iOrigin);

   162 		}

   163 	}

   165 void CWsGc::CancelClippingRegion()

   166 	{

   167 	if (iUserDefinedClippingRegion)

   168 		{

   169 		iUserDefinedClippingRegion->Destroy();

   170 		iUserDefinedClippingRegion=NULL;

   171 		}

   172 	}

   174 void CWsGc::CheckPolyData(const TAny* aDataPtr, TInt aHeaderSize, TInt aNumPoints)

   175 	{

   176 	TInt maxDataLen;

   177 	if (CWsClient::iCurrentCommand.iOpcode>0)

   178 		{

   179 		maxDataLen=CWsClient::EndOfCommandBuffer()-static_cast<const TUint8*>(aDataPtr);

   180 		}

   181 	else	// Playing back from redraw store??

   182 		{

   183 		maxDataLen=CWsClient::iCurrentCommand.iCmdLength;

   184 		}

   185 	const TInt dataSize=aHeaderSize+aNumPoints*sizeof(TPoint);

   186 	if (dataSize>maxDataLen)

   187 		GcOwnerPanic(EWservPanicBadPolyData);

   188 	}

   190 void CWsGc::DoDrawPolygon(const TWsGcCmdDrawPolygon *aDrawPolygon)

   191 	{

   192 	CheckPolyData(aDrawPolygon,sizeof(TWsGcCmdDrawPolygon),aDrawPolygon->numPoints);

   193 	iBackedUpWinGc->DrawPolygon((TPoint *)(aDrawPolygon+1),aDrawPolygon->numPoints,aDrawPolygon->fillRule);

   194 	}

   196 void CWsGc::StartSegmentedDrawPolygonL(const TWsGcCmdStartSegmentedDrawPolygon* aDrawPolygon)

   197 	{

   198 	WS_ASSERT_DEBUG(iWin->Redraw()->OutputDevice(), EWsPanicWindowType);

   199 	if (iPolyPoints || !Rng(0, aDrawPolygon->totalNumPoints, KMaxTInt/2 - 1))	// Restarting without finishing old polygon or invalid size

   200 		GcOwnerPanic(EWservPanicBadPolyData);

   201 	iPolyPoints=(TPoint *)User::AllocL(aDrawPolygon->totalNumPoints*sizeof(TPoint));

   202 	iPolyPointListSize=aDrawPolygon->totalNumPoints;

   203 	}

   205 void CWsGc::SegmentedDrawPolygonData(const TWsGcCmdSegmentedDrawPolygonData* aDrawPolygon)

   206 	{

   207 	WS_ASSERT_DEBUG(iWin->Redraw()->OutputDevice(), EWsPanicWindowType);

   208 	if (aDrawPolygon->index<0 || (aDrawPolygon->index+aDrawPolygon->numPoints)>iPolyPointListSize)

   209 		GcOwnerPanic(EWservPanicBadPolyData);

   210 	Mem::Copy(iPolyPoints+aDrawPolygon->index,aDrawPolygon+1,aDrawPolygon->numPoints*sizeof(TPoint));

   211 	}

   213 void CWsGc::EndSegmentedPolygon()

   214 	{

   215 	delete iPolyPoints;

   216 	iPolyPoints=NULL;

   217 	iPolyPointListSize = 0;

   218 	}

   220 void CWsGc::DoDrawPolyLine(const TWsGcCmdDrawPolyLine *aDrawPolyLine, TBool aContinued)

   221 	{

   222 	TInt numPoints=aDrawPolyLine->numPoints;

   223 	CheckPolyData(aDrawPolyLine,sizeof(TWsGcCmdDrawPolyLine),numPoints);

   224 	const TPoint *points=(TPoint *)(aDrawPolyLine+1);

   225 	if (aContinued)

   226 		{

   227 		numPoints++;

   228 		points=&aDrawPolyLine->last;

   229 		}

   230 	if (aDrawPolyLine->more)	// more to come so don't draw the end point

   231 		iBackedUpWinGc->DrawPolyLineNoEndPoint(points,numPoints);

   232 	else

   233 		iBackedUpWinGc->DrawPolyLine(points,numPoints);

   234 	}

   236 void CWsGc::GcOwnerPanic(TClientPanic aPanic)

   237 	{

   238 	iBackedUpWinGc->SetClippingRegion(NULL);

   239 	EndSegmentedPolygon();

   240 	iWin->WsOwner()->PPanic(aPanic);

   241 	}

   243 TPtrC CWsGc::BufferTPtr(TText* aStart,TInt aLen)

   244 	{

   245 	TPtrC gcPtr;

   246 	if (!CWsClient::BufferTPtrGc(aStart,aLen,gcPtr))

   247 		GcOwnerPanic(EWservPanicBufferPtr);

   248 	return(gcPtr);

   249 	}

   251 void CWsGc::DoDrawCommand(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData)

   252 	{

   253 	WS_ASSERT_DEBUG(iWin,EWsPanicWindowNull);

   254 	WS_ASSERT_DEBUG(iWin->Redraw()->OutputDevice(), EWsPanicWindowType); // Must be activated on a backed up window

   256 	if (iUserDefinedClippingRegion)

   257 		{

   258 		if (iUserDefinedClippingRegion->Count()==0)

   259 			return;

   260 		if (iUserDefinedClippingRegion->IsContainedBy(TRect(TPoint(0,0), iBackedUpWinGc->Device()->SizeInPixels())))

   261 			{

   262 			iBackedUpWinGc->SetClippingRegion(iUserDefinedClippingRegion);

   263 			}

   264 		}

   265 	CGraphicsContext::TTextParameters contextParam;

   266 	switch(aOpcode)

   267 		{

   268 		case EWsGcOpDrawWsGraphic:

   269 		case EWsGcOpDrawWsGraphicPtr:

   270 			{

   271 			// CWsGc doesn't support CRPs.  CPlaybackGc does.  This means backedup windows

   272 			// don't get to play with them yet.

   273 			break;

   274 			}

   275 		case EWsGcOpMapColorsLocal:

   276 			GcOwnerPanic(EWservPanicOpcode); //deprecated, the client should never generate this op

   277 			break;

   278 		case EWsGcOpDrawPolyLineLocalBufLen:

   279 			iBackedUpWinGc->DrawPolyLine(pData.DrawPolyLineLocalBufLen->points,pData.DrawPolyLineLocalBufLen->length);

   280 			break;

   281 		case EWsGcOpDrawPolyLineLocal:

   282 			iBackedUpWinGc->DrawPolyLine(pData.PointList);

   283 			break;

   284 		case EWsGcOpDrawPolygonLocalBufLen:

   285 			iBackedUpWinGc->DrawPolygon(pData.DrawPolygonLocalBufLen->points,pData.DrawPolygonLocalBufLen->length,pData.DrawPolygonLocalBufLen->fillRule);

   286 			break;

   287 		case EWsGcOpDrawPolygonLocal:

   288 			iBackedUpWinGc->DrawPolygon(pData.DrawPolygonLocal->pointList,pData.DrawPolygonLocal->fillRule);

   289 			break;

   290 		case EWsGcOpDrawBitmapLocal:

   291 			iBackedUpWinGc->DrawBitmap(pData.BitmapLocal->pos, pData.BitmapLocal->bitmap);

   292 			break;

   293 		case EWsGcOpDrawBitmap2Local:

   294 			iBackedUpWinGc->DrawBitmap(pData.Bitmap2Local->rect, pData.Bitmap2Local->bitmap);

   295 			break;

   296 		case EWsGcOpDrawBitmap3Local:

   297 			iBackedUpWinGc->DrawBitmap(pData.Bitmap3Local->rect, pData.Bitmap3Local->bitmap, pData.Bitmap3Local->srcRect);

   298 			break;

   299 		case EWsGcOpDrawBitmapMaskedLocal:

   300 			iBackedUpWinGc->DrawBitmapMasked(pData.iBitmapMaskedLocal->iRect, pData.iBitmapMaskedLocal->iBitmap, pData.iBitmapMaskedLocal->iSrcRect, pData.iBitmapMaskedLocal->iMaskBitmap,pData.iBitmapMaskedLocal->iInvertMask);

   301 			break;

   302 		case EWsGcOpAlphaBlendBitmapsLocal:

   303 			iBackedUpWinGc->AlphaBlendBitmaps(pData.AlphaBlendBitmapsLocal->point,pData.AlphaBlendBitmapsLocal->iBitmap,

   304 						   			pData.AlphaBlendBitmapsLocal->source, pData.AlphaBlendBitmapsLocal->iAlpha,

   305 									pData.AlphaBlendBitmapsLocal->alphaPoint);

   307 			break;

   308 		case EWsGcOpDrawText:

   309 			iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.DrawText+1),pData.DrawText->length),pData.DrawText->pos);

   310 			break;

   311 		case EWsGcOpDrawBoxTextOptimised1:

   312 			iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxTextO1+1),pData.BoxTextO1->length),pData.BoxTextO1->box,

   313 							pData.BoxTextO1->baselineOffset,CGraphicsContext::ELeft,0);

   314 			break;

   315 		case EWsGcOpDrawBoxTextOptimised2:

   316 			iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxTextO2+1),pData.BoxTextO2->length),pData.BoxTextO2->box,

   317 							pData.BoxTextO2->baselineOffset,pData.BoxTextO2->horiz,pData.BoxTextO2->leftMrg);

   318 			break;

   319 		case EWsGcOpDrawTextPtr:

   320 			iBackedUpWinGc->DrawText(*pData.DrawTextPtr->text,pData.DrawTextPtr->pos);

   321 			break;

   322 		case EWsGcOpDrawTextPtr1:

   323 		   	iBackedUpWinGc->DrawText(*pData.DrawTextPtr->text);

   324 			break;

   325 		case EWsGcOpDrawBoxText:

   326 			iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxText+1),pData.BoxText->length),pData.BoxText->box,pData.BoxText->baselineOffset,pData.BoxText->width,pData.BoxText->horiz,pData.BoxText->leftMrg);

   327 			break;

   328 		case EWsGcOpDrawBoxTextPtr:

   329 			iBackedUpWinGc->DrawText(*pData.DrawBoxTextPtr->text,pData.DrawBoxTextPtr->box,pData.DrawBoxTextPtr->baselineOffset,pData.DrawBoxTextPtr->width,pData.DrawBoxTextPtr->horiz,pData.DrawBoxTextPtr->leftMrg);

   330 			break;

   331 		case EWsGcOpDrawBoxTextPtr1:

   332 			iBackedUpWinGc->DrawText(*pData.DrawBoxTextPtr->text,pData.DrawBoxTextPtr->box);

   333 			break;

   334 		case EWsGcOpDrawTextVertical:

   335 			iBackedUpWinGc->DrawTextVertical(BufferTPtr((TText *)(pData.DrawTextVertical+1),pData.DrawTextVertical->length),pData.DrawTextVertical->pos

   336 							,pData.DrawTextVertical->up);

   337 			break;

   338 		case EWsGcOpDrawTextVerticalPtr:

   339 			iBackedUpWinGc->DrawTextVertical(*pData.DrawTextVerticalPtr->text,pData.DrawTextVerticalPtr->pos,pData.DrawTextVerticalPtr->up);

   340 			break;

   341 		case EWsGcOpDrawTextVerticalPtr1:

   342 			iBackedUpWinGc->DrawTextVertical(*pData.DrawTextVerticalPtr->text,pData.DrawTextVerticalPtr->up);

   343 			break;

   344 		case EWsGcOpDrawBoxTextVertical:

   345 			iBackedUpWinGc->DrawTextVertical(BufferTPtr((TText *)(pData.DrawBoxTextVertical+1),pData.DrawBoxTextVertical->length),

   346 							pData.DrawBoxTextVertical->box,	pData.DrawBoxTextVertical->baselineOffset,

   347 							pData.DrawBoxTextVertical->up,(CGraphicsContext::TTextAlign)pData.DrawBoxTextVertical->vert,pData.DrawBoxTextVertical->margin);

   348 			break;

   349 		case EWsGcOpDrawBoxTextVerticalPtr:

   350 			iBackedUpWinGc->DrawTextVertical(*pData.DrawBoxTextVerticalPtr->text,pData.DrawBoxTextVerticalPtr->box,pData.DrawBoxTextVerticalPtr->baselineOffset

   351 							,pData.DrawBoxTextVerticalPtr->width,pData.DrawBoxTextVerticalPtr->up,pData.DrawBoxTextVerticalPtr->vert,pData.DrawBoxTextVerticalPtr->margin);

   352 			break;

   353 		case EWsGcOpDrawBoxTextVerticalPtr1:

   354 			iBackedUpWinGc->DrawTextVertical(*pData.DrawBoxTextVerticalPtr->text,pData.DrawBoxTextVerticalPtr->box,pData.DrawBoxTextVerticalPtr->up);

   355 			break;

   356 		case EWsGcOpDrawTextLocal:

   357 			iBackedUpWinGc->DrawText(*pData.DrawTextLocal->desc,pData.DrawTextLocal->pos);

   358 			break;

   359 		case EWsGcOpDrawBoxTextLocal:

   360 			iBackedUpWinGc->DrawText(*pData.BoxTextLocal->desc,pData.BoxTextLocal->box,pData.BoxTextLocal->baselineOffset,

   361 							pData.BoxTextLocal->horiz,pData.BoxTextLocal->leftMrg);

   362 			break;

   363 		/************* DrawText in Context function calls*********************************************/

   364 		case EWsGcOpDrawTextInContext:

   365 			contextParam.iStart = pData.DrawTextInContext->start;

   366 			contextParam.iEnd = pData.DrawTextInContext->end;

   367 			if(contextParam.iStart < contextParam.iEnd)

   368 				{

   369 				iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.DrawTextInContext+1),pData.DrawTextInContext->length),&contextParam,pData.DrawTextInContext->pos);

   370 				}

   371 			else

   372 				{

   373 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   374 				}

   375 			break;

   376 		case EWsGcOpDrawBoxTextInContextOptimised1:

   377 			contextParam.iStart = pData.BoxTextInContextO1->start;

   378 			contextParam.iEnd = pData.BoxTextInContextO1->end;

   379 			if(contextParam.iStart < contextParam.iEnd)

   380 				{

   381 				iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxTextInContextO1+1),pData.BoxTextInContextO1->length),&contextParam,pData.BoxTextInContextO1->box,

   382 						pData.BoxTextInContextO1->baselineOffset,CGraphicsContext::ELeft,0);

   383 				}

   384 			else

   385 				{

   386 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   387 				}

   388 			break;

   389 		case EWsGcOpDrawBoxTextInContextOptimised2:

   390 			contextParam.iStart = pData.BoxTextInContextO2->start;

   391 			contextParam.iEnd = pData.BoxTextInContextO2->end;

   392 			if(contextParam.iStart < contextParam.iEnd)

   393 				{

   394 				iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxTextInContextO2+1),pData.BoxTextInContextO2->length),&contextParam,pData.BoxTextInContextO2->box,

   395 						pData.BoxTextInContextO2->baselineOffset,pData.BoxTextInContextO2->horiz,pData.BoxTextInContextO2->leftMrg);

   396 				}

   397 			else

   398 				{

   399 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   400 				}

   401 			break;

   402 		case EWsGcOpDrawTextInContextPtr:

   403 			contextParam.iStart = pData.DrawTextInContextPtr->start;

   404 			contextParam.iEnd = pData.DrawTextInContextPtr->end;

   405 			if(contextParam.iStart < contextParam.iEnd)

   406 				{

   407 				iBackedUpWinGc->DrawText(*pData.DrawTextInContextPtr->text,&contextParam,pData.DrawTextInContextPtr->pos);

   408 				}

   409 			else

   410 				{

   411 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   412 				}

   413 			break;

   414 		case EWsGcOpDrawTextInContextPtr1:

   415 			contextParam.iStart = pData.DrawTextInContextPtr->start;

   416 			contextParam.iEnd = pData.DrawTextInContextPtr->end;

   417 			if(contextParam.iStart < contextParam.iEnd)

   418 				{

   419 				iBackedUpWinGc->DrawText(*pData.DrawTextInContextPtr->text,&contextParam);

   420 				}

   421 			else

   422 				{

   423 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   424 				}

   425 			break;

   426 		case EWsGcOpDrawBoxTextInContext:

   427 			contextParam.iStart = pData.BoxTextInContext->start;

   428 			contextParam.iEnd = pData.BoxTextInContext->end;

   429 			if(contextParam.iStart < contextParam.iEnd)

   430 				{

   431 				iBackedUpWinGc->DrawText(BufferTPtr((TText *)(pData.BoxTextInContext+1),pData.BoxTextInContext->length),&contextParam,

   432 						pData.BoxTextInContext->box,pData.BoxTextInContext->baselineOffset,pData.BoxTextInContext->width,pData.BoxTextInContext->horiz,pData.BoxTextInContext->leftMrg);

   433 				}

   434 			else

   435 				{

   436 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   437 				}

   438 			break;

   439 		case EWsGcOpDrawBoxTextInContextPtr:

   440 			contextParam.iStart = pData.DrawBoxTextInContextPtr->start;

   441 			contextParam.iEnd = pData.DrawBoxTextInContextPtr->end;

   442 			if(contextParam.iStart < contextParam.iEnd)

   443 				{

   444 				iBackedUpWinGc->DrawText(*pData.DrawBoxTextInContextPtr->text,&contextParam,pData.DrawBoxTextInContextPtr->box,pData.DrawBoxTextInContextPtr->baselineOffset,pData.DrawBoxTextInContextPtr->width,pData.DrawBoxTextInContextPtr->horiz,pData.DrawBoxTextInContextPtr->leftMrg);

   445 				}

   446 			else

   447 				{

   448 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   449 				}

   450 			break;

   451 		case EWsGcOpDrawBoxTextInContextPtr1:

   452 			contextParam.iStart = pData.DrawBoxTextInContextPtr->start;

   453 			contextParam.iEnd = pData.DrawBoxTextInContextPtr->end;

   454 			if(contextParam.iStart < contextParam.iEnd)

   455 				{

   456 				iBackedUpWinGc->DrawText(*pData.DrawBoxTextInContextPtr->text,&contextParam,pData.DrawBoxTextInContextPtr->box);

   457 				}

   458 			else

   459 				{

   460 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   461 				}

   462 			break;

   463 		case EWsGcOpDrawTextInContextVertical:

   464 			contextParam.iStart = pData.DrawTextInContextVertical->start;

   465 			contextParam.iEnd = pData.DrawTextInContextVertical->end;

   466 			if(contextParam.iStart < contextParam.iEnd)

   467 				{

   468 				iBackedUpWinGc->DrawTextVertical(BufferTPtr((TText *)(pData.DrawTextInContextVertical+1),pData.DrawTextInContextVertical->length),&contextParam,pData.DrawTextInContextVertical->pos

   469 						,pData.DrawTextInContextVertical->up);

   470 				}

   471 			else

   472 				{

   473 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   474 				}

   475 			break;

   476 		case EWsGcOpDrawTextInContextVerticalPtr:

   477 			contextParam.iStart = pData.DrawTextInContextVerticalPtr->start;

   478 			contextParam.iEnd = pData.DrawTextInContextVerticalPtr->end;

   479 			if(contextParam.iStart < contextParam.iEnd)

   480 				{

   481 				iBackedUpWinGc->DrawTextVertical(*pData.DrawTextInContextVerticalPtr->text,&contextParam,pData.DrawTextInContextVerticalPtr->pos,pData.DrawTextInContextVerticalPtr->up);

   482 				}

   483 			else

   484 				{

   485 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   486 				}

   487 			break;

   488 		case EWsGcOpDrawTextInContextVerticalPtr1:

   489 			contextParam.iStart = pData.DrawTextInContextVerticalPtr->start;

   490 			contextParam.iEnd = pData.DrawTextInContextVerticalPtr->end;

   491 			if(contextParam.iStart < contextParam.iEnd)

   492 				{

   493 				iBackedUpWinGc->DrawTextVertical(*pData.DrawTextInContextVerticalPtr->text,&contextParam,pData.DrawTextInContextVerticalPtr->up);

   494 				}

   495 			else

   496 				{

   497 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   498 				}

   499 			break;

   500 		case EWsGcOpDrawBoxTextInContextVertical:

   501 			contextParam.iStart = pData.DrawBoxTextInContextVertical->start;

   502 			contextParam.iEnd = pData.DrawBoxTextInContextVertical->end;

   503 			if(contextParam.iStart < contextParam.iEnd)

   504 				{

   505 				iBackedUpWinGc->DrawTextVertical(BufferTPtr((TText *)(pData.DrawBoxTextInContextVertical+1),pData.DrawBoxTextInContextVertical->length),&contextParam,

   506 						pData.DrawBoxTextInContextVertical->box,pData.DrawBoxTextInContextVertical->baselineOffset,

   507 						pData.DrawBoxTextInContextVertical->up,(CGraphicsContext::TTextAlign)pData.DrawBoxTextInContextVertical->vert,pData.DrawBoxTextInContextVertical->margin);

   508 				}

   509 			else

   510 				{

   511 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   512 				}

   513 			break;

   514 		case EWsGcOpDrawBoxTextInContextVerticalPtr:

   515 			contextParam.iStart = pData.DrawBoxTextInContextVerticalPtr->start;

   516 			contextParam.iEnd = pData.DrawBoxTextInContextVerticalPtr->end;

   517 			if(contextParam.iStart < contextParam.iEnd)

   518 				{

   519 				iBackedUpWinGc->DrawTextVertical(*pData.DrawBoxTextVerticalPtr->text,&contextParam,pData.DrawBoxTextVerticalPtr->box,pData.DrawBoxTextVerticalPtr->baselineOffset

   520 						,pData.DrawBoxTextVerticalPtr->width,pData.DrawBoxTextVerticalPtr->up,pData.DrawBoxTextVerticalPtr->vert,pData.DrawBoxTextVerticalPtr->margin);

   521 				}

   522 			else

   523 				{

   524 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   525 				}

   526 			break;

   527 		case EWsGcOpDrawBoxTextInContextVerticalPtr1:

   528 			contextParam.iStart = pData.DrawBoxTextInContextVerticalPtr->start;

   529 			contextParam.iEnd = pData.DrawBoxTextInContextVerticalPtr->end;

   530 			if(contextParam.iStart < contextParam.iEnd)

   531 				{

   532 				iBackedUpWinGc->DrawTextVertical(*pData.DrawBoxTextVerticalPtr->text,&contextParam,pData.DrawBoxTextVerticalPtr->box,pData.DrawBoxTextVerticalPtr->up);

   533 				}

   534 			else

   535 				{

   536 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   537 				}

   538 			break;

   539 		case EWsGcOpDrawTextInContextLocal:

   540 			contextParam.iStart = pData.DrawTextInContextLocal->start;

   541 			contextParam.iEnd = pData.DrawTextInContextLocal->end;

   542 			if(contextParam.iStart < contextParam.iEnd)

   543 				{

   544 				iBackedUpWinGc->DrawText(*pData.DrawTextInContextLocal->desc,&contextParam,pData.DrawTextInContextLocal->pos);

   545 				}

   546 			else

   547 				{

   548 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   549 				}

   550 			break;

   551 		case EWsGcOpDrawBoxTextInContextLocal:

   552 			contextParam.iStart = pData.BoxTextInContextLocal->start;

   553 			contextParam.iEnd = pData.BoxTextInContextLocal->end;

   554 			if(contextParam.iStart < contextParam.iEnd)

   555 				{

   556 				iBackedUpWinGc->DrawText(*pData.BoxTextInContextLocal->desc,pData.BoxTextInContextLocal->box,pData.BoxTextInContextLocal->baselineOffset,

   557 						pData.BoxTextInContextLocal->horiz,pData.BoxTextInContextLocal->leftMrg);

   558 				}

   559 			else

   560 				{

   561 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   562 				}

   563 			break;

   564 		case EWsGcOpDrawLine:

   565 			iBackedUpWinGc->DrawLine(pData.DrawLine->pnt1,pData.DrawLine->pnt2);

   566 			break;

   567 		case EWsGcOpDrawTo:

   568 			iBackedUpWinGc->DrawLine(iLinePos,*pData.Point);

   569 			break;

   570 		case EWsGcOpDrawBy:

   571 			iBackedUpWinGc->DrawLine(iLinePos,iLinePos+(*pData.Point));

   572 			break;

   573 		case EWsGcOpPlot:

   574 			iBackedUpWinGc->Plot(*pData.Point);

   575 			break;

   576 		case EWsGcOpMoveTo:

   577 		case EWsGcOpMoveBy:

   578 			break;

   579 		case EWsGcOpGdiBlt2Local:

   580 			iBackedUpWinGc->BitBlt(pData.GdiBlt2Local->pos,pData.GdiBlt2Local->bitmap);

   581 			break;

   582 		case EWsGcOpGdiBlt3Local:

   583 			iBackedUpWinGc->BitBlt(pData.GdiBlt3Local->pos,pData.GdiBlt3Local->bitmap, pData.GdiBlt3Local->rect);

   584 			break;

   585 		case EWsGcOpGdiBltMaskedLocal:

   586 			iBackedUpWinGc->BitBltMasked(pData.GdiBltMaskedLocal->pos,pData.GdiBltMaskedLocal->bitmap,

   587 								pData.GdiBltMaskedLocal->rect,pData.GdiBltMaskedLocal->maskBitmap,

   588 								pData.GdiBltMaskedLocal->invertMask);

   589 			break;

   590 		case EWsGcOpGdiWsBlt2:

   591 		case EWsGcOpGdiWsBlt3:

   592 		case EWsGcOpGdiWsBltMasked:

   593 		case EWsGcOpGdiWsAlphaBlendBitmaps:

   594 		case EWsGcOpWsDrawBitmapMasked:

   595 			{

   596 			CFbsBitmap* scratchBimap=iScratchBitmap;

   597 			CFbsBitmap* scratchMaskBimap=iScratchMaskBitmap;

   598 			TInt maskHandle=0;

   599 			TInt handle=WsBitmapHandle(aOpcode,pData, maskHandle);

   600 			CWsClient* owner=iWin->WsOwner(); // We can't just use iWsOwner - it can be null for stored commands

   601 			if (owner!=NULL)

   602 				{

   603 				DWsBitmap *bitmap=(DWsBitmap *)owner->HandleToObj(handle, WS_HANDLE_BITMAP);

   604 				if (!bitmap)

   605 					GcOwnerPanic(EWservPanicBitmap);

   606 				scratchBimap=bitmap->FbsBitmap();

   607 				if (aOpcode==EWsGcOpGdiWsBltMasked || aOpcode==EWsGcOpGdiWsAlphaBlendBitmaps || aOpcode==EWsGcOpWsDrawBitmapMasked)

   608 					{

   609 					DWsBitmap *bitmap2=(DWsBitmap *)owner->HandleToObj(maskHandle, WS_HANDLE_BITMAP);

   610 					if (!bitmap2)

   611 						GcOwnerPanic(EWservPanicBitmap);

   612 					scratchMaskBimap=bitmap2->FbsBitmap();

   613 					}

   614 				}

   615 			else

   616 				{

   617 				GcOwnerPanic(EWservPanicBitmap);

   618 				}

   619 			switch(aOpcode)

   620 				{

   621 				case EWsGcOpGdiWsBlt2:

   622 					iBackedUpWinGc->BitBlt(pData.GdiBlt2->pos,scratchBimap);

   623 					break;

   624 				case EWsGcOpGdiWsBlt3:

   625 					iBackedUpWinGc->BitBlt(pData.GdiBlt3->pos,scratchBimap, pData.GdiBlt3->rect);

   626 					break;

   627 				case EWsGcOpGdiWsBltMasked:

   628 					{

   629 					iBackedUpWinGc->BitBltMasked(pData.GdiBltMasked->destination,scratchBimap,

   630 									pData.GdiBltMasked->source, scratchMaskBimap,

   631 									pData.GdiBltMasked->invertMask);

   632 					}

   633 					break;

   634 				case EWsGcOpGdiWsAlphaBlendBitmaps:

   635 					{

   636 					iBackedUpWinGc->AlphaBlendBitmaps(pData.AlphaBlendBitmaps->point,scratchBimap,

   637 									   pData.AlphaBlendBitmaps->source, scratchMaskBimap,

   638 									   pData.AlphaBlendBitmaps->alphaPoint);

   639 					}

   640 					break;

   641 				case EWsGcOpWsDrawBitmapMasked:

   642 					{

   643 					iBackedUpWinGc->DrawBitmapMasked(pData.iBitmapMasked->iRect,scratchBimap,

   644 										pData.iBitmapMasked->iSrcRect,scratchMaskBimap,

   645 										pData.iBitmapMasked->iInvertMask);

   646 					}

   647 					break;

   648 				}

   649 			break;

   650 			}

   651 		case EWsGcOpGdiBlt2:

   652 		case EWsGcOpGdiBlt3:

   653 		case EWsGcOpGdiBltMasked:

   654 		case EWsGcOpGdiAlphaBlendBitmaps:

   655 		case EWsGcOpDrawBitmap:

   656 		case EWsGcOpDrawBitmap2:

   657 		case EWsGcOpDrawBitmap3:

   658 		case EWsGcOpDrawBitmapMasked:

   659 			{

   660 			TInt maskHandle=0;

   661 			TInt ret = iScratchBitmap->Duplicate(FbsBitmapHandle(aOpcode, pData,maskHandle));

   662 			if(ret == KErrNoMemory)

   663 				break;

   664 			if (ret !=KErrNone)

   665 				GcOwnerPanic(EWservPanicBitmap);

   667 			switch(aOpcode)

   668 				{

   669 				case EWsGcOpGdiBlt2:

   670 					iBackedUpWinGc->BitBlt(pData.GdiBlt2->pos,iScratchBitmap);

   671 					break;

   672 				case EWsGcOpGdiBlt3:

   673 					iBackedUpWinGc->BitBlt(pData.GdiBlt3->pos,iScratchBitmap, pData.GdiBlt3->rect);

   674 					break;

   675 				case EWsGcOpGdiBltMasked:

   676 					{

   677 					TInt ret = iScratchMaskBitmap->Duplicate(pData.GdiBltMasked->maskHandle);

   678 					if(ret == KErrNoMemory)

   679 						break;

   680 					if (ret !=KErrNone)

   681 						GcOwnerPanic(EWservPanicBitmap);

   683 					iBackedUpWinGc->BitBltMasked(pData.GdiBltMasked->destination,iScratchBitmap,

   684 										pData.GdiBltMasked->source, iScratchMaskBitmap,

   685 										 pData.GdiBltMasked->invertMask);

   686 					iScratchMaskBitmap->Reset();

   687 					}

   688 					break;

   689 				case EWsGcOpGdiAlphaBlendBitmaps:

   690 					{

   691 					TInt ret = iScratchMaskBitmap->Duplicate(pData.AlphaBlendBitmaps->alphaHandle);

   692 					if (ret == KErrNoMemory)

   693 						break;

   694 					if (ret != KErrNone)

   695 						GcOwnerPanic(EWservPanicBitmap);

   697 					iBackedUpWinGc->AlphaBlendBitmaps(pData.AlphaBlendBitmaps->point, iScratchBitmap,

   698 									   pData.AlphaBlendBitmaps->source, iScratchMaskBitmap,

   699 									   pData.AlphaBlendBitmaps->alphaPoint);

   700 					iScratchMaskBitmap->Reset();

   701 					break;

   702 					}

   703 				case EWsGcOpDrawBitmap:

   704 					iBackedUpWinGc->DrawBitmap(pData.Bitmap->pos, iScratchBitmap);

   705 					break;

   706 				case EWsGcOpDrawBitmap2:

   707 					iBackedUpWinGc->DrawBitmap(pData.Bitmap2->rect, iScratchBitmap);

   708 					break;

   709 				case EWsGcOpDrawBitmap3:

   710 					iBackedUpWinGc->DrawBitmap(pData.Bitmap3->rect, iScratchBitmap, pData.Bitmap3->srcRect);

   711 					break;

   712 				case EWsGcOpDrawBitmapMasked:

   713 					{

   714 					TInt ret = iScratchMaskBitmap->Duplicate(pData.iBitmapMasked->iMaskHandle);

   715 					if (ret == KErrNoMemory)

   716 						break;

   717 					if (ret != KErrNone)

   718 						GcOwnerPanic(EWservPanicBitmap);

   720 					iBackedUpWinGc->DrawBitmapMasked(pData.iBitmapMasked->iRect, iScratchBitmap,

   721 										pData.iBitmapMasked->iSrcRect, iScratchMaskBitmap,

   722 										pData.iBitmapMasked->iInvertMask);

   723 					iScratchMaskBitmap->Reset();

   724 					}

   725 					break;

   726 				}

   727 			iScratchBitmap->Reset();

   728 			break;

   729 			}

   730 		case EWsGcOpDrawSegmentedPolygon:

   731 			iBackedUpWinGc->DrawPolygon(iPolyPoints,iPolyPointListSize,pData.DrawSegmentedPolygon->fillRule);

   732 			break;

   733 		case EWsGcOpDrawPolygon:

   734 			DoDrawPolygon(pData.Polygon);

   735 			break;

   736 		case EWsGcOpDrawPolyLine:

   737 			DoDrawPolyLine(pData.PolyLine, EFalse);

   738 			break;

   739 		case EWsGcOpDrawPolyLineContinued:

   740 			DoDrawPolyLine(pData.PolyLine, ETrue);

   741 			break;

   742 		case EWsGcOpClear:

   743 			iBackedUpWinGc->Clear(TRect(iWin->Size()));

   744 			break;

   745 		case EWsGcOpClearRect:

   746 			iBackedUpWinGc->Clear(*pData.Rect);

   747 			break;

   748 		case EWsGcOpDrawRect:

   749 			iBackedUpWinGc->DrawRect(*pData.Rect);

   750 			break;

   751 		case EWsGcOpDrawEllipse:

   752 			iBackedUpWinGc->DrawEllipse(*pData.Rect);

   753 			break;

   754 		case EWsGcOpDrawRoundRect:

   755 			iBackedUpWinGc->DrawRoundRect(*pData.Rect,pData.RoundRect->ellipse);

   756 			break;

   757 		case EWsGcOpDrawArc:

   758 			iBackedUpWinGc->DrawArc(*pData.Rect,pData.ArcOrPie->start,pData.ArcOrPie->end);

   759 			break;

   760 		case EWsGcOpDrawPie:

   761 			iBackedUpWinGc->DrawPie(*pData.Rect,pData.ArcOrPie->start,pData.ArcOrPie->end);

   762 			break;

   763 		case EWsGcOpCopyRect:

   764 			iBackedUpWinGc->CopyRect(pData.CopyRect->pos,*pData.Rect);

   765 			break;

   766 		case EWsGcOpMapColors:

   767 			GcOwnerPanic(EWservPanicOpcode); //deprecated, the client should never generate this op

   768 			break;

   770 		default:

   771 			GcOwnerPanic(EWservPanicOpcode);

   772 		}

   773 	iBackedUpWinGc->SetClippingRegion(NULL);

   774 	}

   776 TInt CWsGc::WsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle)

   777 	{

   778 	TInt handle=0;

   779 	switch(aOpcode)

   780 		{

   781 		case EWsGcOpGdiWsBlt2:

   782 			handle=pData.GdiBlt2->handle;

   783 			break;

   784 		case EWsGcOpGdiWsBlt3:

   785 			handle=pData.GdiBlt3->handle;

   786 			break;

   787 		case EWsGcOpGdiWsBltMasked:

   788 			handle=pData.GdiBltMasked->handle;

   789 			aMaskHandle = pData.GdiBltMasked->maskHandle;

   790 			break;

   791 		case EWsGcOpGdiWsAlphaBlendBitmaps:

   792 			handle=pData.AlphaBlendBitmaps->bitmapHandle;

   793 			aMaskHandle = pData.AlphaBlendBitmaps->alphaHandle;

   794 			break;

   795 		case EWsGcOpWsDrawBitmapMasked:

   796 			handle=pData.iBitmapMasked->iHandle;

   797 			aMaskHandle=pData.iBitmapMasked->iMaskHandle;

   798 			break;

   799 		default:

   800 			OwnerPanic(EWservPanicOpcode);

   801 		}

   802 	return handle;

   803 	}

   805 TInt CWsGc::FbsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle)

   806 	{

   807 	TInt handle=0;

   808 	aMaskHandle=0;

   809 	switch(aOpcode)

   810 		{

   811 		case EWsGcOpGdiBlt2:

   812 			handle=pData.GdiBlt2->handle;

   813 			break;

   814 		case EWsGcOpGdiBlt3:

   815 			handle=pData.GdiBlt3->handle;

   816 			break;

   817 		case EWsGcOpGdiBltMasked:

   818 			handle=pData.GdiBltMasked->handle;

   819 			aMaskHandle=pData.GdiBltMasked->maskHandle;

   820 			break;

   821 		case EWsGcOpGdiAlphaBlendBitmaps:

   822 			handle=pData.AlphaBlendBitmaps->bitmapHandle;

   823 			aMaskHandle=pData.AlphaBlendBitmaps->alphaHandle;

   824 			break;

   825 		case EWsGcOpDrawBitmap:

   826 			handle=pData.Bitmap->handle;

   827 			break;

   828 		case EWsGcOpDrawBitmap2:

   829 			handle=pData.Bitmap2->handle;

   830 			break;

   831 		case EWsGcOpDrawBitmap3:

   832 			handle=pData.Bitmap3->handle;

   833 			break;

   834 		case EWsGcOpDrawBitmapMasked:

   835 			handle=pData.iBitmapMasked->iHandle;

   836 			aMaskHandle=pData.iBitmapMasked->iMaskHandle;

   837 			break;

   838 		default:

   839 			OwnerPanic(EWservPanicOpcode);

   840 		}

   841 	return handle;

   842 	}

   844 TInt CWsGc::WsDrawableSourceHandle(TInt aOpcode, const TWsGcCmdUnion &aData)

   845 	{

   846 	TInt handle=0;

   847 	switch(aOpcode)

   848 		{

   849 		case EWsGcOpDrawResourceToPos:

   850 			handle=aData.DrawWsResourceToPos->wsHandle;

   851 			break;

   852 		case EWsGcOpDrawResourceToRect:

   853 			handle=aData.DrawWsResourceToRect->wsHandle;

   854 			break;

   855 		case EWsGcOpDrawResourceFromRectToRect:

   856 			handle=aData.DrawWsResourceFromRectToRect->wsHandle;

   857 			break;

   858 		case EWsGcOpDrawResourceWithData:

   859 			handle=aData.DrawWsResourceWithData->wsHandle;

   860 			break;

   861 		default:

   862 			OwnerPanic(EWservPanicOpcode);

   863 		}

   864 	return handle;

   865 	}

   867 void CWsGc::UpdateJustification(TText* aText,TInt aLen)

   868 	{

   869 	iBackedUpWinGc->UpdateJustification(BufferTPtr(aText,aLen));

   870 	}

   872 void CWsGc::UpdateJustification(TText* aText,TInt aLen,CGraphicsContext::TTextParameters* aParam)

   873 	{

   874 	iBackedUpWinGc->UpdateJustification(BufferTPtr(aText,aLen),aParam);

   875 	}

   877 void CWsGc::DoDrawing2(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData)

   878 	{

   879 	WS_ASSERT_DEBUG(iWin->Redraw()->OutputDevice(), EWsPanicWindowType);

   881 	iBackedUpWinGc->SetUserDisplayMode(iWin->DisplayMode());

   882 	if (iClippingRectSet)

   883 		{

   884 		iBackedUpWinGc->SetOrigin(TPoint(0,0));

   885 		iBackedUpWinGc->SetClippingRect(iClippingRect);

   886 		}

   887 	iBackedUpWinGc->SetOrigin(iOrigin);

   888 	iInternalStatus.iOrigin = iOrigin;

   890 	DoDrawCommand(aOpcode,pData);

   892 	iBackedUpWinGc->SetUserDisplayMode(ENone);

   893 	iBackedUpWinGc->CancelClippingRect();

   894 	CGraphicsContext::TTextParameters contextParam;

   895 	switch(aOpcode)

   896 		{

   897 		case EWsGcOpDrawLine:

   898 			iLinePos=pData.DrawLine->pnt2;

   899 			break;

   900 		case EWsGcOpDrawTo:

   901 		case EWsGcOpMoveTo:

   902 		case EWsGcOpPlot:

   903 			iLinePos=(*pData.Point);

   904 			break;

   905 		case EWsGcOpDrawBy:

   906 		case EWsGcOpMoveBy:

   907 			iLinePos+=(*pData.Point);

   908 			break;

   909 		case EWsGcOpDrawSegmentedPolygon:

   910 			EndSegmentedPolygon();

   911 			break;

   912 		case EWsGcOpDrawText:

   913 			UpdateJustification((TText *)(pData.DrawText+1),pData.DrawText->length);

   914 			break;

   915 		case EWsGcOpDrawTextVertical:

   916 			UpdateJustification((TText *)(pData.DrawTextVertical+1),pData.DrawTextVertical->length);

   917 			break;

   918 		case EWsGcOpDrawBoxText:

   919 			UpdateJustification((TText *)(pData.BoxText+1),pData.BoxText->length);

   920 			break;

   921 		case EWsGcOpDrawBoxTextOptimised1:

   922 			UpdateJustification((TText *)(pData.BoxTextO1+1),pData.BoxTextO1->length);

   923 			break;

   924 		case EWsGcOpDrawBoxTextOptimised2:

   925 			UpdateJustification((TText *)(pData.BoxTextO2+1),pData.BoxTextO2->length);

   926 			break;

   927 		case EWsGcOpDrawBoxTextVertical:

   928 			UpdateJustification((TText *)(pData.DrawBoxTextVertical+1),pData.DrawBoxTextVertical->length);

   929 			break;

   930 		case EWsGcOpDrawTextLocal:

   931 			iBackedUpWinGc->UpdateJustification(*pData.DrawTextLocal->desc);

   932 			break;

   933 		case EWsGcOpDrawBoxTextLocal:

   934 			iBackedUpWinGc->UpdateJustification(*pData.BoxTextLocal->desc);

   935 			break;

   936 		case EWsGcOpDrawTextPtr:

   937 			iBackedUpWinGc->UpdateJustification(*pData.DrawTextPtr->text);

   938 			break;

   939 		case EWsGcOpDrawTextVerticalPtr:

   940 			iBackedUpWinGc->UpdateJustification(*pData.DrawTextVerticalPtr->text);

   941 			break;

   942 		case EWsGcOpDrawBoxTextPtr:

   943 			iBackedUpWinGc->UpdateJustification(*pData.DrawBoxTextPtr->text);

   944 			break;

   945 		case EWsGcOpDrawBoxTextVerticalPtr:

   946 			iBackedUpWinGc->UpdateJustification(*pData.DrawBoxTextVerticalPtr->text);

   947 			break;

   948 		/***************DrawTextInContext*****************************************************************/

   949 		case EWsGcOpDrawTextInContext:

   950 			contextParam.iStart = pData.DrawTextInContext->start;

   951 			contextParam.iEnd = pData.DrawTextInContext->end;

   952 			if(contextParam.iStart < contextParam.iEnd)

   953 				{

   954 				UpdateJustification((TText *)(pData.DrawTextInContext+1),pData.DrawTextInContext->length,&contextParam);

   955 				}

   956 			else

   957 				{

   958 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   959 				}

   960 			break;

   961 		case EWsGcOpDrawTextInContextVertical:

   962 			contextParam.iStart = pData.DrawTextInContext->start;

   963 			contextParam.iEnd = pData.DrawTextInContext->end;

   964 			if(contextParam.iStart < contextParam.iEnd)

   965 				{

   966 				UpdateJustification((TText *)(pData.DrawTextInContextVertical+1),pData.DrawTextInContextVertical->length,&contextParam);

   967 				}

   968 			else

   969 				{

   970 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   971 				}

   972 			break;

   973 		case EWsGcOpDrawBoxTextInContext:

   974 			contextParam.iStart = pData.DrawTextInContext->start;

   975 			contextParam.iEnd = pData.DrawTextInContext->end;

   976 			if(contextParam.iStart < contextParam.iEnd)

   977 				{

   978 				UpdateJustification((TText *)(pData.BoxTextInContext+1),pData.BoxTextInContext->length,&contextParam);

   979 				}

   980 			else

   981 				{

   982 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   983 				}

   984 			break;

   985 		case EWsGcOpDrawBoxTextInContextOptimised1:

   986 			contextParam.iStart = pData.DrawTextInContext->start;

   987 			contextParam.iEnd = pData.DrawTextInContext->end;

   988 			if(contextParam.iStart < contextParam.iEnd)

   989 				{

   990 				UpdateJustification((TText *)(pData.BoxTextInContextO1+1),pData.BoxTextInContextO1->length,&contextParam);

   991 				}

   992 			else

   993 				{

   994 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

   995 				}

   996 			break;

   997 		case EWsGcOpDrawBoxTextInContextOptimised2:

   998 			contextParam.iStart = pData.DrawTextInContext->start;

   999 			contextParam.iEnd = pData.DrawTextInContext->end;

  1000 			if(contextParam.iStart < contextParam.iEnd)

  1001 				{

  1002 				UpdateJustification((TText *)(pData.BoxTextInContextO2+1),pData.BoxTextInContextO2->length,&contextParam);

  1003 				}

  1004 			else

  1005 				{

  1006 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1007 				}

  1008 			break;

  1009 		case EWsGcOpDrawBoxTextInContextVertical:

  1010 			contextParam.iStart = pData.DrawTextInContext->start;

  1011 			contextParam.iEnd = pData.DrawTextInContext->end;

  1012 			if(contextParam.iStart < contextParam.iEnd)

  1013 				{

  1014 				UpdateJustification((TText *)(pData.DrawBoxTextInContextVertical+1),pData.DrawBoxTextInContextVertical->length,&contextParam);

  1015 				}

  1016 			else

  1017 				{

  1018 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1019 				}

  1020 			break;

  1021 		case EWsGcOpDrawTextInContextLocal:

  1022 			contextParam.iStart = pData.DrawTextInContext->start;

  1023 			contextParam.iEnd = pData.DrawTextInContext->end;

  1024 			if(contextParam.iStart < contextParam.iEnd)

  1025 				{

  1026 				iBackedUpWinGc->UpdateJustification(*pData.DrawTextInContextLocal->desc,&contextParam);

  1027 				}

  1028 			else

  1029 				{

  1030 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1031 				}

  1032 			break;

  1033 		case EWsGcOpDrawBoxTextInContextLocal:

  1034 			contextParam.iStart = pData.DrawTextInContext->start;

  1035 			contextParam.iEnd = pData.DrawTextInContext->end;

  1036 			if(contextParam.iStart < contextParam.iEnd)

  1037 				{

  1038 				iBackedUpWinGc->UpdateJustification(*pData.BoxTextInContextLocal->desc,&contextParam);

  1039 				}

  1040 			else

  1041 				{

  1042 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1043 				}

  1044 			break;

  1045 		case EWsGcOpDrawTextInContextPtr:

  1046 			contextParam.iStart = pData.DrawTextInContext->start;

  1047 			contextParam.iEnd = pData.DrawTextInContext->end;

  1048 			if(contextParam.iStart < contextParam.iEnd)

  1049 				{

  1050 				iBackedUpWinGc->UpdateJustification(*pData.DrawTextInContextPtr->text,&contextParam);

  1051 				}

  1052 			else

  1053 				{

  1054 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1055 				}

  1056 			break;

  1057 		case EWsGcOpDrawTextInContextVerticalPtr:

  1058 			contextParam.iStart = pData.DrawTextInContext->start;

  1059 			contextParam.iEnd = pData.DrawTextInContext->end;

  1060 			if(contextParam.iStart < contextParam.iEnd)

  1061 				{

  1062 				iBackedUpWinGc->UpdateJustification(*pData.DrawTextInContextVerticalPtr->text,&contextParam);

  1063 				}

  1064 			else

  1065 				{

  1066 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1067 				}

  1068 			break;

  1069 		case EWsGcOpDrawBoxTextInContextPtr:

  1070 			contextParam.iStart = pData.DrawTextInContext->start;

  1071 			contextParam.iEnd = pData.DrawTextInContext->end;

  1072 			if(contextParam.iStart < contextParam.iEnd)

  1073 				{

  1074 				iBackedUpWinGc->UpdateJustification(*pData.DrawBoxTextInContextPtr->text,&contextParam);

  1075 				}

  1076 			else

  1077 				{

  1078 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1079 				}

  1080 			break;

  1081 		case EWsGcOpDrawBoxTextInContextVerticalPtr:

  1082 			contextParam.iStart = pData.DrawTextInContext->start;

  1083 			contextParam.iEnd = pData.DrawTextInContext->end;

  1084 			if(contextParam.iStart < contextParam.iEnd)

  1085 				{

  1086 				iBackedUpWinGc->UpdateJustification(*pData.DrawBoxTextInContextVerticalPtr->text,&contextParam);

  1087 				}

  1088 			else

  1089 				{

  1090 				iWin->WsOwner()->PPanic(EWservPanicInvalidParameter);

  1091 				}

  1092 			break;

  1093 		}

  1094 	}

  1096 void CWsGc::DoDrawing1(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData)

  1097 	{

  1098 	WS_ASSERT_DEBUG(iWin->Redraw()->OutputDevice(), EWsPanicWindowType);

  1100 	TWsGcLargeStruct newData;

  1101 	TWsGcCmdUnion pNewData;

  1102 	TWsGcOpcodes opcode;

  1103 	TDesC **string;

  1104 	TInt toGo;

  1105 	pNewData.LargeStruct=&newData;

  1106 	switch (aOpcode)

  1107 		{

  1108 		case EWsGcOpDrawTextPtr:

  1109 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdDrawTextPtr), EWsPanicGcStructSizeError);

  1110 			opcode=EWsGcOpDrawTextPtr1;

  1111 			toGo=pData.DrawText->length;

  1112 			pNewData.DrawTextPtr->pos=pData.DrawText->pos;

  1113 			string=&(pNewData.DrawTextPtr->text);

  1114 			break;

  1115 		case EWsGcOpDrawTextVerticalPtr:

  1116 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdDrawTextVerticalPtr), EWsPanicGcStructSizeError);

  1117 			opcode=EWsGcOpDrawTextVerticalPtr1;

  1118 			toGo=pData.DrawTextVertical->length;

  1119 			pNewData.DrawTextVerticalPtr->pos=pData.DrawTextVertical->pos;

  1120 			pNewData.DrawTextVerticalPtr->up=pData.DrawTextVertical->up;

  1121 			string=&(pNewData.DrawTextVerticalPtr->text);

  1122 			break;

  1124 		case EWsGcOpDrawBoxTextPtr:

  1125 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdBoxTextPtr), EWsPanicGcStructSizeError);

  1126 			opcode=EWsGcOpDrawBoxTextPtr1;

  1127 			toGo=pData.BoxText->length;

  1128 			pNewData.DrawBoxTextPtr->box=pData.BoxText->box;

  1129 			pNewData.DrawBoxTextPtr->baselineOffset=pData.BoxText->baselineOffset;

  1130 			pNewData.DrawBoxTextPtr->horiz=pData.BoxText->horiz;

  1131 			pNewData.DrawBoxTextPtr->leftMrg=pData.BoxText->leftMrg;

  1132 			pNewData.DrawBoxTextPtr->width=pData.BoxText->width;

  1133 			string=&(pNewData.DrawBoxTextPtr->text);

  1134 			break;

  1136 		case EWsGcOpDrawBoxTextVerticalPtr:

  1137 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdBoxTextVerticalPtr), EWsPanicGcStructSizeError);

  1138 			opcode=EWsGcOpDrawBoxTextVerticalPtr1;

  1139 			toGo=pData.DrawBoxTextVertical->length;

  1140 			pNewData.DrawBoxTextVerticalPtr->box=pData.DrawBoxTextVertical->box;

  1141 			pNewData.DrawBoxTextVerticalPtr->baselineOffset=pData.DrawBoxTextVertical->baselineOffset;

  1142 			pNewData.DrawBoxTextVerticalPtr->up=pData.DrawBoxTextVertical->up;

  1143 			pNewData.DrawBoxTextVerticalPtr->vert=pData.DrawBoxTextVertical->vert;

  1144 			pNewData.DrawBoxTextVerticalPtr->margin=pData.DrawBoxTextVertical->margin;

  1145 			pNewData.DrawBoxTextVerticalPtr->width=pData.DrawBoxTextVertical->width;

  1146 			string=&(pNewData.DrawBoxTextVerticalPtr->text);

  1147 			break;

  1149 		case EWsGcOpDrawTextInContextPtr:

  1150 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdDrawTextInContextPtr), EWsPanicGcStructSizeError);

  1151 			opcode=EWsGcOpDrawTextInContextPtr1;

  1152 			toGo=pData.DrawTextInContext->length;

  1153 			pNewData.DrawTextInContextPtr->pos=pData.DrawTextInContext->pos;

  1154 			pNewData.DrawTextInContextPtr->start=pData.DrawTextInContext->start;

  1155 			pNewData.DrawTextInContextPtr->end=pData.DrawTextInContext->end;

  1156 			string=&(pNewData.DrawTextInContextPtr->text);

  1157 			break;

  1159 		case EWsGcOpDrawTextInContextVerticalPtr:

  1160 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdDrawTextInContextVerticalPtr), EWsPanicGcStructSizeError);

  1161 			opcode=EWsGcOpDrawTextInContextVerticalPtr1;

  1162 			toGo=pData.DrawTextInContextVertical->length;

  1163   			pNewData.DrawTextInContextVerticalPtr->pos=pData.DrawTextInContextVerticalPtr->pos;

  1164   			pNewData.DrawTextInContextVerticalPtr->up=pData.DrawTextInContextVerticalPtr->up;

  1165   			pNewData.DrawTextInContextVerticalPtr->start=pData.DrawTextInContextVerticalPtr->start;

  1166   			pNewData.DrawTextInContextVerticalPtr->end=pData.DrawTextInContextVerticalPtr->end;

  1167 			string=&(pNewData.DrawTextVerticalPtr->text);

  1168 			break;

  1170 		case EWsGcOpDrawBoxTextInContextPtr:

  1171 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdBoxTextInContextPtr), EWsPanicGcStructSizeError);

  1172 			opcode=EWsGcOpDrawBoxTextInContextPtr1;

  1173 			toGo=pData.BoxTextInContext->length;

  1174    			pNewData.DrawBoxTextInContextPtr->box=pData.BoxTextInContext->box;

  1175    			pNewData.DrawBoxTextInContextPtr->baselineOffset=pData.BoxTextInContext->baselineOffset;

  1176    			pNewData.DrawBoxTextInContextPtr->horiz=pData.BoxTextInContext->horiz;

  1177    			pNewData.DrawBoxTextInContextPtr->leftMrg=pData.BoxTextInContext->leftMrg;

  1178    			pNewData.DrawBoxTextInContextPtr->width=pData.BoxTextInContext->width;

  1179    			pNewData.DrawBoxTextInContextPtr->start=pData.BoxTextInContext->start;

  1180   			pNewData.DrawBoxTextInContextPtr->end=pData.BoxTextInContext->end;

  1181 			string=&(pNewData.DrawBoxTextPtr->text);

  1182 			break;

  1184 		case EWsGcOpDrawBoxTextInContextVerticalPtr:

  1185 			WS_ASSERT_DEBUG(sizeof(TWsGcLargeStruct)>=sizeof(TWsGcCmdBoxTextInContextVerticalPtr), EWsPanicGcStructSizeError);

  1186 			opcode=EWsGcOpDrawBoxTextInContextVerticalPtr1;

  1187 			toGo=pData.DrawBoxTextInContextVertical->length;

  1188    			pNewData.DrawBoxTextInContextVerticalPtr->box=pData.DrawBoxTextInContextVertical->box;

  1189    			pNewData.DrawBoxTextInContextVerticalPtr->baselineOffset=pData.DrawBoxTextInContextVertical->baselineOffset;

  1190    			pNewData.DrawBoxTextInContextVerticalPtr->up=pData.DrawBoxTextInContextVertical->up;

  1191    			pNewData.DrawBoxTextInContextVerticalPtr->vert=pData.DrawBoxTextInContextVertical->vert;

  1192    			pNewData.DrawBoxTextInContextVerticalPtr->margin=pData.DrawBoxTextInContextVertical->margin;

  1193    			pNewData.DrawBoxTextInContextVerticalPtr->width=pData.DrawBoxTextInContextVertical->width;

  1194    			pNewData.DrawBoxTextInContextVerticalPtr->start=pData.DrawBoxTextInContextVertical->start;

  1195    			pNewData.DrawBoxTextInContextVerticalPtr->end=pData.DrawBoxTextInContextVertical->end;

  1196  			string=&(pNewData.DrawBoxTextInContextVerticalPtr->text);

  1197 			break;

  1199 		default:

  1200 			DoDrawing2(aOpcode,pData);

  1201 			return;

  1202 		}

  1204 	TBuf<ETextPtrBufLen> buf;

  1205 	TInt len=ETextPtrBufLen;

  1206 	TInt bufOffset=0;

  1207 	*string=&buf;

  1208 	while(toGo>0)

  1209 		{

  1210 		if (len>toGo)

  1211 			len=toGo;

  1212 		iWsOwner->RemoteRead(buf,bufOffset);

  1213 		DoDrawing2(aOpcode,pNewData);

  1214 		aOpcode=opcode;

  1215 		bufOffset+=len;

  1216 		toGo-=len;

  1217 		}

  1218 	}

  1220 void CWsGc::SetGcAttribute(TInt aOpcode, TWsGcCmdUnion pData)

  1221 	{

  1222 	switch(aOpcode)

  1223 		{

  1224 		case EWsGcOpSetDrawMode:

  1225 			iInternalStatus.iDrawMode = (CGraphicsContext::TDrawMode) (*pData.UInt);

  1226 			if (iWin->Redraw()->OutputDevice())

  1227 				iBackedUpWinGc->SetDrawMode(iInternalStatus.iDrawMode);

  1228 			break;

  1229 		case EWsGcOpUseFont:

  1230 			if (CWsFontCache::Instance()->UseFont(iFont, *pData.UInt))

  1231 				{	// Couldn't cache it

  1232 				if (iWin->Redraw()->OutputDevice())

  1233 					{

  1234 					TInt ret = iBackedUpWinGc->UseFont(*pData.UInt);

  1235 					if (ret == KErrNoMemory)

  1236 						return;

  1237 					if (ret != KErrNone)

  1238 						GcOwnerPanic(EWservPanicFont);

  1239 					}

  1240 				iInternalStatus.iFontHandle = *pData.UInt;

  1241 				}

  1242 			else

  1243 				{

  1244 				if (iFont==NULL)

  1245 					{

  1246 					iInternalStatus.iFontHandle = NULL;

  1247 					GcOwnerPanic(EWservPanicFont);

  1248 					}

  1249 				if (iWin->Redraw()->OutputDevice())

  1250 					iBackedUpWinGc->UseFontNoDuplicate(iFont);

  1251 				iInternalStatus.iFontHandle = iFont->Handle();

  1252 				}

  1253 			break;

  1254 		case EWsGcOpDiscardFont:

  1255 			CWsFontCache::Instance()->ReleaseFont(iFont);

  1256 			if (iWin->Redraw()->OutputDevice())

  1257 				iBackedUpWinGc->DiscardFont();

  1258 			iInternalStatus.iFontHandle = NULL;

  1259 			break;

  1260 		case EWsGcOpSetUnderlineStyle:

  1261 			if (iWin->Redraw()->OutputDevice())

  1262 				iBackedUpWinGc->SetUnderlineStyle(*pData.SetUnderlineStyle);

  1263 			iInternalStatus.iUnderline = *pData.SetUnderlineStyle;

  1264 			break;

  1265 		case EWsGcOpSetStrikethroughStyle:

  1266 			if (iWin->Redraw()->OutputDevice())

  1267 				iBackedUpWinGc->SetStrikethroughStyle(*pData.SetStrikethroughStyle);

  1268 			iInternalStatus.iStrikethrough = *pData.SetStrikethroughStyle;

  1269 			break;

  1270 		case EWsGcOpUseBrushPattern:

  1271 			if (iWin->Redraw()->OutputDevice())

  1272 				{

  1273 				TInt ret = iBackedUpWinGc->UseBrushPattern(*pData.handle);

  1274 				if (ret == KErrNoMemory)

  1275 					return;

  1276 				if (ret != KErrNone)

  1277 					GcOwnerPanic(EWservPanicBitmap);

  1278 				}

  1279 			else

  1280 				{

  1281 				// Make sure the bitmap handle is valid

  1282 				TInt ret = iScratchBitmap->Duplicate(*pData.handle);

  1283 				if (ret == KErrNoMemory)

  1284 					return;

  1285 				if (ret != KErrNone)

  1286 					GcOwnerPanic(EWservPanicBitmap);

  1287 				iScratchBitmap->Reset();

  1288 				}

  1289 			iInternalStatus.iBrushPatternHandle = *pData.handle;

  1290 			break;

  1291 		case EWsGcOpDiscardBrushPattern:

  1292 			if (iWin->Redraw()->OutputDevice())

  1293 				iBackedUpWinGc->DiscardBrushPattern();

  1294 			iInternalStatus.iBrushPatternHandle = NULL;

  1295 			if (iInternalStatus.iBrushStyle == CGraphicsContext::EPatternedBrush)

  1296 				iInternalStatus.iBrushStyle = CGraphicsContext::ENullBrush;

  1297 			break;

  1298 		case EWsGcOpSetBrushColor:

  1299 			if (iWin->Redraw()->OutputDevice())

  1300 				iBackedUpWinGc->SetBrushColor(*pData.rgb);

  1301 			iInternalStatus.iBrushColor = *pData.rgb;

  1302 			break;

  1303 		case EWsGcOpSetPenColor:

  1304 			if (iWin->Redraw()->OutputDevice())

  1305 				iBackedUpWinGc->SetPenColor(*pData.rgb);

  1306 			iInternalStatus.iPenColor = *pData.rgb;

  1307 			break;

  1308 		case EWsGcOpSetPenStyle:

  1309 			iInternalStatus.iPenStyle = (CGraphicsContext::TPenStyle) (*pData.UInt);

  1310 			if (iWin->Redraw()->OutputDevice())

  1311 				iBackedUpWinGc->SetPenStyle(iInternalStatus.iPenStyle);

  1312 			break;

  1313 		case EWsGcOpSetPenSize:

  1314 			if (iWin->Redraw()->OutputDevice())

  1315 				iBackedUpWinGc->SetPenSize(*pData.Size);

  1316 			iInternalStatus.iPenSize = *pData.Size;

  1317 			break;

  1318 		case EWsGcOpSetBrushStyle:

  1319 			if ((CGraphicsContext::TBrushStyle)*pData.UInt==CGraphicsContext::EPatternedBrush && !iInternalStatus.iBrushPatternHandle)

  1320 				GcOwnerPanic(EWservPanicNoBrush);

  1321 			iInternalStatus.iBrushStyle = (CGraphicsContext::TBrushStyle) (*pData.UInt);

  1322 			if (iWin->Redraw()->OutputDevice())

  1323 				iBackedUpWinGc->SetBrushStyle(iInternalStatus.iBrushStyle);

  1324 			break;

  1325 		case EWsGcOpReset:

  1326 			CWsFontCache::Instance()->ReleaseFont(iFont);

  1327 			iBackedUpWinGc->Reset();

  1328 			iOrigin.SetXY(0,0);

  1329 			ResetClippingRect();

  1330 			iInternalStatus.ResetInternalStatus(iWin);

  1331 			if (iWin->Redraw()->OutputDevice())

  1332 				iBackedUpWinGc->SetBrushColor(iWin->BackColor());

  1333 			iInternalStatus.iBrushColor = iWin->BackColor();

  1334 			break;

  1335 		case EWsGcOpSetBrushOrigin:

  1336 			if (iWin->Redraw()->OutputDevice())

  1337 				iBackedUpWinGc->SetBrushOrigin(*pData.Point);

  1338 			iInternalStatus.iBrushOrigin = *pData.Point;

  1339 			break;

  1340 		case EWsGcOpSetDitherOrigin:

  1341 			GcOwnerPanic(EWservPanicOpcode); //deprecated, the client should never generate this op

  1342 			break;

  1343 		case EWsGcOpSetWordJustification:

  1344 			if (iWin->Redraw()->OutputDevice())

  1345 				iBackedUpWinGc->SetWordJustification(pData.SetJustification->excessWidth, pData.SetJustification->numGaps);

  1346 			iInternalStatus.iWordExcessWidth = pData.SetJustification->excessWidth;

  1347 			iInternalStatus.iWordNumChars = pData.SetJustification->numGaps;

  1348 			break;

  1349 		case EWsGcOpSetCharJustification:

  1350 			if (iWin->Redraw()->OutputDevice())

  1351 				iBackedUpWinGc->SetCharJustification(pData.SetJustification->excessWidth, pData.SetJustification->numGaps);

  1352 			iInternalStatus.iCharExcessWidth = pData.SetJustification->excessWidth;

  1353 			iInternalStatus.iCharNumChars = pData.SetJustification->numGaps;

  1354 			break;

  1355 		case EWsGcOpSetOrigin:

  1356 			SetOrigin(*pData.Point);

  1357 			iInternalStatus.iOrigin = *pData.Point;

  1358 			break;

  1359 		case EWsGcOpSetOpaque: // deprecated

  1360 			// do nothing

  1361 			break;

  1362 		case EWsGcOpSetShadowColor:

  1363 			if (iWin->Redraw()->OutputDevice())

  1364 				iBackedUpWinGc->SetShadowColor(*pData.rgb);

  1365 			iInternalStatus.iShadowColor = *pData.rgb;

  1366 			break;

  1367 		}

  1368 	}

  1370 void CWsGc::DoDrawing0L(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData)

  1371 	{

  1372 	if (iWin==NULL)

  1373 		{

  1374 		OwnerPanic(EWservPanicGcNotActive);

  1375 		return;

  1376 		}

  1378 	iWin->SetValidRedraw();

  1380 	switch(aOpcode)

  1381 		{

  1382 	case EWsGcOpStartSegmentedDrawPolygon:

  1384 		//tell Redraw Store about the drawing data, so that it is stored and CWsGc::ExternalizeL can be called if required

  1385 		if (iWin->Redraw()->DrawCommand(this,pData.any))

  1386 			StartSegmentedDrawPolygonL(pData.StartSegmentedDrawPolygon);

  1387 		return;

  1388 	case EWsGcOpSegmentedDrawPolygonData:

  1389 		//tell Redraw Store about the drawing data, so that it is stored and CWsGc::ExternalizeL can be called if required

  1390 		if (iWin->Redraw()->DrawCommand(this,pData.any))

  1391 			SegmentedDrawPolygonData(pData.SegmentedDrawPolygonData);

  1392 		return;

  1393 	case EWsGcOpSetClippingRegion:

  1394 		SetClippingRegionL(*pData.Int);

  1395 		break;

  1396 	case EWsGcOpSetClippingRect:

  1397 		SetClippingRect(*pData.Rect);

  1398 		break;

  1399 	case EWsGcOpCancelClippingRect:

  1400 		ResetClippingRect();

  1401 		break;

  1402 	case EWsGcOpCancelClippingRegion:

  1403 		CancelClippingRegion();

  1404 		break;

  1405 	case EWsGcOpSetFaded:

  1406 		if (iWin->Redraw()->OutputDevice())

  1407 			iBackedUpWinGc->SetFaded(*pData.Bool);

  1408 		break;

  1409 	case EWsGcOpSetFadeParams:

  1410 		if (iWin->Redraw()->OutputDevice())

  1411 			iBackedUpWinGc->SetFadingParameters(WservEncoding::ExtractFirst8BitValue(*pData.UInt),WservEncoding::ExtractSecond8BitValue(*pData.UInt));

  1412 		break;

  1413 	case EWsGcOpSetDrawMode:

  1414 	case EWsGcOpUseFont:

  1415 	case EWsGcOpDiscardFont:

  1416 	case EWsGcOpUseBrushPattern:

  1417 	case EWsGcOpDiscardBrushPattern:

  1418 	case EWsGcOpSetBrushColor:

  1419 	case EWsGcOpSetPenColor:

  1420 	case EWsGcOpSetPenStyle:

  1421 	case EWsGcOpSetPenSize:

  1422 	case EWsGcOpSetBrushStyle:

  1423 	case EWsGcOpReset:

  1424 	case EWsGcOpSetBrushOrigin:

  1425 	case EWsGcOpSetDitherOrigin:

  1426 	case EWsGcOpSetUnderlineStyle:

  1427 	case EWsGcOpSetStrikethroughStyle:

  1428 	case EWsGcOpSetWordJustification:

  1429 	case EWsGcOpSetCharJustification:

  1430 	case EWsGcOpSetOrigin:

  1431 	case EWsGcOpSetOpaque:

  1432 	case EWsGcOpSetShadowColor:

  1433 		{

  1434 		SetGcAttribute(aOpcode,pData);

  1435 		break;

  1436 		}

  1437 	case EWsGcOpDrawBoxText:

  1438 	case EWsGcOpDrawBoxTextOptimised1:

  1439 	case EWsGcOpDrawBoxTextOptimised2:

  1440 	case EWsGcOpDrawBoxTextPtr:

  1441 	case EWsGcOpDrawBoxTextPtr1:

  1442 	case EWsGcOpDrawTextPtr:

  1443 	case EWsGcOpDrawTextPtr1:

  1444 	case EWsGcOpDrawText:

  1445 	case EWsGcOpDrawTextVertical:

  1446 	case EWsGcOpDrawTextVerticalPtr:

  1447 	case EWsGcOpDrawTextVerticalPtr1:

  1448 	case EWsGcOpDrawBoxTextVertical:

  1449 	case EWsGcOpDrawBoxTextVerticalPtr:

  1450 	case EWsGcOpDrawBoxTextVerticalPtr1:

  1451 	case EWsGcOpDrawTextLocal:

  1452 	case EWsGcOpDrawBoxTextLocal:

  1453 		{

  1454 		//Make sure a font is set before any text related opcodes are used.

  1455 		if (!iInternalStatus.iFontHandle)

  1456 			OwnerPanic(EWservPanicNoFont);

  1457 		//fall through

  1458 		}

  1459 	default:	// Assume remaining functions will draw

  1460 		{

  1461 		if (iWin->WinType()!=EWinTypeRoot)

  1462 			{

  1463 			if (!iWin->BaseParent())

  1464 				OwnerPanic(EWservPanicParentDeleted);

  1465 			if (iWin->WinType()!=EWinTypeClient)

  1466 				OwnerPanic(EWservPanicReadOnlyDrawable);

  1467 			}

  1468 		if (iWin->Redraw()->DrawCommand(this,pData.any))

  1469 			DoDrawing1(aOpcode,pData);

  1470 		return;

  1471 		}

  1472 		}

  1473 	iWin->Redraw()->GcAttributeChange(this,pData.any);

  1474 	}

  1476 void CWsGc::CommandL(TInt aOpcode, const TAny *aCmdData)

  1477 	{

  1478 	TWsGcOpcodes opcode = static_cast<TWsGcOpcodes>(aOpcode);

  1480 	TWsGcCmdUnion pData;

  1481 	pData.any=aCmdData;

  1482 	switch(opcode)

  1483 		{

  1484 		case EWsGcOpActivate:

  1485 			Activate(*pData.handle);

  1486 			break;

  1487 		case EWsGcOpDeactivate:

  1488 			Deactivate();

  1489 			break;

  1490 		case EWsGcOpFree:

  1491 			delete this;

  1492 			break;

  1493 		case EWsGcOpTestInvariant:

  1494 			break;

  1495 		default:

  1496 			DoDrawing0L(opcode,pData);

  1497 			break;

  1498 		}

  1499 	}

  1501 void CWsGc::SetOrigin(const TPoint &aOrigin)

  1502 	{

  1503 	iOrigin=aOrigin;

  1504 	}

  1507 /*------------------------------------------------------------------------------

  1508   Description: Saves graphics context information into a given buffer from a

  1509                given start position rather than just streaming data to the end.

  1510                This variant allows for buffers that are not fully utilised.

  1511  -----------------------------------------------------------------------------*/

  1512 TInt CWsGc::ExternalizeL(CBufBase& aBuffer, TInt aStartPos)

  1513 	{

  1514 	WS_ASSERT_DEBUG(!IsPolyPointData(), EWsPanicDrawCommandsInvalidState);

  1516 	// Open the stream used for the output from the given start position

  1517 	// in the buffer.

  1518 	RBufWriteStream bufWriteStream;

  1519 	bufWriteStream.Open(aBuffer, aStartPos);

  1520 	CleanupClosePushL(bufWriteStream);

  1522 	// Font/Bitmap Server data is serialised below in a call to

  1523 	// ExternalizeGcAttributesL(). As this method does not return the amount of

  1524 	// the data externalised we use methods in the underlying stream to

  1525 	// calculate it. We do this because we need to return an accurate count of

  1526 	// data serialised from this method so that the caller can update its

  1527 	// buffer write counter.

  1528 	MStreamBuf* ptrToRawStream = bufWriteStream.Sink();	// This is the real stream

  1530 	// Position of read seek pointer before externalise

  1531 	TStreamPos size1 = ptrToRawStream->TellL(MStreamBuf::EWrite);

  1533 	// Save the font/bitmap server data

  1534 	iInternalStatus.ExternalizeGcAttributesL(bufWriteStream);

  1536 	bufWriteStream.WriteInt32L(iOrigin.iX);

  1537 	bufWriteStream.WriteInt32L(iOrigin.iY);

  1539 	bufWriteStream.WriteInt8L(iClippingRectSet);

  1541 	// If there is a clipping rectangle output that too.

  1542 	if (iClippingRectSet)

  1543 		{

  1544 		bufWriteStream << iClippingRect;

  1545 		}

  1547 	// Save clipping region data.

  1548 	ExternalizeClippingRegionL(bufWriteStream);

  1550 	// Save the Alpha values for Brush and Pen colors.

  1551 	ExternalizeAlphaValueL(bufWriteStream);

  1553 	// Position of read seek pointer after externalise

  1554 	TStreamPos size2 = ptrToRawStream->TellL(MStreamBuf::EWrite);

  1555 	CleanupStack::PopAndDestroy(&bufWriteStream);

  1557 	// Return actual size of data serialized

  1558 	return (size2 - size1);

  1559 	}

  1561 /*------------------------------------------------------------------------------

  1562   Description: Saves TRgb::alpha value information into a given buffer.

  1563   ----------------------------------------------------------------------------*/

  1564 void CWsGc::ExternalizeAlphaValueL(RWriteStream& aWriteStream)

  1565 	{

  1566 	aWriteStream.WriteUint8L(iInternalStatus.iBrushColor.Alpha());

  1567 	aWriteStream.WriteUint8L(iInternalStatus.iPenColor.Alpha());

  1568 	}

  1570 /*------------------------------------------------------------------------------

  1571   Description: Helper method to store clipping region data to a given

  1572                write stream.

  1573  -----------------------------------------------------------------------------*/

  1574 TInt CWsGc::ExternalizeClippingRegionL(RWriteStream& aWriteStream)

  1575 	{

  1576 	TBool clipRegion = (iUserDefinedClippingRegion != NULL);

  1577 	// Store flag to indicate if client has defined a clipping region

  1578 	aWriteStream.WriteInt8L(clipRegion);

  1579 	// Store client clipping region data if it exists

  1580 	if (clipRegion)

  1581 		{

  1582 		return ExternalizeRegionL(aWriteStream, *iUserDefinedClippingRegion) + sizeof(TInt8);

  1583 		}

  1584 	return sizeof(TInt8);

  1585 	}

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--