// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include "CANONSTD.H"

#include <banddev.h>

#include <fbs.h>

#include "CANON.H"

#include "pdrtext.h"

EXPORT_C CPrinterDevice* NewPrinterDeviceL()

	{

	CCanonDevice* device = new(ELeave) CCanonDevice;

	return device;

	}

CCanonDevice::CCanonDevice():

	CFbsDrvDevice()

	{

	__DECLARE_NAME(_S("CCanonDevice"));

	}

CCanonDevice::~CCanonDevice()

	{

	}

TInt CCanonDevice::CreateContext(CGraphicsContext*& aGC)

	{

	__ASSERT_DEBUG(iControl, Panic(ECanonControlDoesNotExist));

	CPdrControl* control = (CPdrControl*)iControl;

	return control->CreateContext(aGC);

	}

void CCanonDevice::CreateControlL(CPrinterPort* aPrinterPort)

	{

	__ASSERT_ALWAYS(aPrinterPort, Panic(ECanonRequiresPrinterPort));

	__ASSERT_ALWAYS(!iControl, Panic(ECanonControlAlreadyExists));

	__ASSERT_DEBUG(iCurrentPageSpecInTwips.iPortraitPageSize.iWidth && iCurrentPageSpecInTwips.iPortraitPageSize.iHeight, Panic(ECanonPageSpecNotSet));

	iControl = CCanonControl::NewL(this, aPrinterPort, *iStore, iModelInfo->iResourcesStreamId);

	}

CCanonControl* CCanonControl::NewL(CPdrDevice* aPdrDevice, CPrinterPort* aPrinterPort, CStreamStore& aStore, TStreamId aResourcesStreamId)

	{

	CCanonControl* control = new(ELeave) CCanonControl(aPdrDevice, aPrinterPort);

	CleanupStack::PushL(control);

	control->ConstructL(aStore, aResourcesStreamId);

	CleanupStack::Pop();

	return control;

	}

CCanonControl::~CCanonControl()

	{

	}

void CCanonControl::ConstructL(CStreamStore& aStore, TStreamId aResourcesStreamId)

	{

	if((iPdrDevice->CurrentPageSpecInTwips().iOrientation == TPageSpec::ELandscape)

		&& (iPdrDevice->Flags() & ECanonLandscapeNotAvailable))

		User::Leave(KErrNotSupported);

	CFbsDrvControl::ConstructL(aStore, aResourcesStreamId);

	TRect rect = iPdrDevice->PrintablePageInPixels();

	TSize size;

	size.iWidth = iPdrDevice->HorizontalPixelsToTwips(1000);

	size.iHeight = iPdrDevice->VerticalPixelsToTwips(1000);

	iBandedDevice = CBandedDevice::NewL(rect, size, iPdrDevice->DisplayMode(), EBandingTopToBottom, KCanonNumScanLinesPerBand);

	TInt len = CFbsBitmap::ScanLineLength(iBandedDevice->BandBitmap()->SizeInPixels().iWidth, iPdrDevice->DisplayMode());

	CFbsDrvControl::iScanLine = HBufC8::NewL(len);

	CFbsDrvControl::iCompressedScanLine = HBufC8::NewL(len);

	iPageText = CPageText::NewL();

	}

void CCanonControl::OutputBandL() 	

	{

	if(IsGraphicsBand())

		{

		TRect bandrect = iBandedDevice->BandRect();

		TSize size = bandrect.Size();

		TCommandString des;

		TBool datainband = EFalse;

		for(TInt i = 0; i < size.iWidth; i++)

			{

			iBandedDevice->BandBitmap()->GetVerticalScanLine(iScanLine, i, iPdrDevice->DisplayMode());

			if(TransformBuffer() && !datainband)

				{

				MoveToL(bandrect.iTl + TPoint(i, 0));

				des.Format(iResources->ResourceString(EPdrBitmapStart), KCanonBytesPerDotColumn * (size.iWidth - i));

				iPageBuffer->AddBytesL(des);

				datainband = ETrue;

				}

			if(datainband)

				iPageBuffer->AddBytesL(iScanLine);

			}

		iPageBuffer->AddBytesL(iResources->ResourceString(EPdrBitmapEnd));

		iPosition.iX = iPdrDevice->OffsetInPixels().iX;

		TInt numentries = iPageText->NumEntries();

		if(numentries)

			{

			CPageTextEntry* entry;

			for(TInt y = bandrect.iTl.iY; y <= bandrect.iBr.iY; y++)

				{

				for(TInt index = 0; (index < numentries); index++)

					{

					entry = (*iPageText)[index];

					TPoint drawPos = entry->iDrawPos - TPoint(0, 16);	// bodge to align pdr fonts with true types

					if(drawPos.iY == y)

						OutputTextL(drawPos, entry->iTextWidthInPixels, *(entry->iTextFormat), *(entry->iText));

					}

				}

			}

		}

	}

void CCanonControl::MoveToL(const TPoint& aPoint) 

	{

	TPoint vector = aPoint - iPosition;

	TInt maxNoOfYIncrements = 256 * 5 / 6; // Ensures no more than 256

	for(; vector.iY >= maxNoOfYIncrements; )

		{

		MoveByL(TPoint(0, maxNoOfYIncrements));

		vector = aPoint - iPosition;

		}

	MoveByL(vector);		

	iPosition = aPoint;

	}

void CCanonControl::MoveByL(const TPoint& aPoint)

	{

	TPoint vector = aPoint;

	if(vector.iX < 0)

		{

		CommandL(EPdrCarriageReturn);

		vector.iX += iPosition.iX - iPdrDevice->OffsetInPixels().iX;

		}

	vector.iX = vector.iX * 2 / 3; // X increments are in 120ths of an inch

	vector.iY = vector.iY * 6 / 5; // Y increments are in 216ths of an inch

	TPoint oldPosition = iPosition;

	CFbsDrvControl::MoveByL(vector);

	iPosition = oldPosition + aPoint; // Correct the position

	}

TBool CCanonControl::TransformBuffer()

	{

	TUint8* pStart = (TUint8*)iScanLine.Ptr();

	TUint8* pEnd = pStart + (KCanonNumScanLinesPerBand >> 3);

	TUint8* p;

	for(p = pStart; (p < pEnd) && (*p == 0xFF); p++)

		{

		}

	TBool datainscanline = (p < pEnd);

	for(p = pStart; p < pEnd; p++)

		{

		TInt byte1 = *p;

		TInt byte2 = 0;

		for(TInt j = 0; j < 8; j++)

			{

			byte2 = byte2 << 1;

			byte2 = byte2 | (byte1 & 1);

			byte1 = byte1 >> 1;

			}

		*p = (TUint8)~byte2;

		}

	return datainscanline;	// returns ETrue if there are non-blank bytes in scanline

  }

CCanonControl::CCanonControl(CPdrDevice* aPdrDevice, CPrinterPort* aPrinterPort):

	CFbsDrvControl(aPdrDevice, aPrinterPort)

	{

	__DECLARE_NAME(_S("CCanonControl"));

	}