// 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 <pdrstore.h>

#include "pdrtext.h"

const TInt KPageBufferSegmentSize=2048;

EXPORT_C CPageBuffer* CPageBuffer::NewL(CPrinterPort* aPrinterPort)

	{

	return NewL(aPrinterPort,KPageBufferSegmentSize);

	}

EXPORT_C CPageBuffer* CPageBuffer::NewL(CPrinterPort* aPrinterPort,TInt aGranularity)

	{

	CPageBuffer* pagebuffer=new(ELeave) CPageBuffer(aPrinterPort,aGranularity);

	CleanupStack::PushL(pagebuffer);

	pagebuffer->ConstructL();

	CleanupStack::Pop();

	return pagebuffer;

	}

EXPORT_C void CPageBuffer::StartFlush(TRequestStatus& aRequestStatus)	

	{		//  

	iRequestStatus=&aRequestStatus;

	aRequestStatus=KRequestPending;

	iWritePos=0;

	Queue();

	}

EXPORT_C void CPageBuffer::AddBytesL(const TDesC8& aDes)

	{

	iBuffer->InsertL(iBuffer->Size(),aDes);

	}

EXPORT_C RWriteStream& CPageBuffer::CreateWriteStreamL()

	{

	if (!iWriteStreamBuffer)

		{

		iWriteStreamBuffer=CBufSeg::NewL(iGranularity);

		iWriteStream.Open(*iWriteStreamBuffer,0);

		}

	else

		{

		iWriteStream.Truncate(*iWriteStreamBuffer,0);

		}

	return iWriteStream;

	}

EXPORT_C void CPageBuffer::CloseWriteStream()

	{

	iWriteStream.Close();

	CBufSeg* buf=iBuffer;

	iBuffer=iWriteStreamBuffer;

	iWriteStreamBuffer=buf;

	}

EXPORT_C CPageBuffer::~CPageBuffer()

	{

	Cancel();

	delete iBuffer;

	if (iWriteStreamBuffer)

		{

		iWriteStream.Close();

		delete iWriteStreamBuffer;

		}

	}

void CPageBuffer::DoCancel()

	{

	iPrinterPort->Cancel();	// clears my request

	if (iRequestStatus!=NULL)

		User::RequestComplete(iRequestStatus,KErrCancel); // clears my callers request

	}

void CPageBuffer::RunL()  //  Shouldn't leave in practice

	{	

	if ((iWritePos>=iBuffer->Size()) || (iStatus!=KErrNone))

		{

		iBuffer->Reset();

		if (iRequestStatus!=NULL)

			User::RequestComplete(iRequestStatus,iStatus.Int()); // clears my callers request

		}	   //  Reports back error if iStatus!=KErrNone

	else

		{

		Queue();

		}

	}

void CPageBuffer::ConstructL()

	{

	iBuffer=CBufSeg::NewL(iGranularity);

	CActiveScheduler::Add(this);

	}

CPageBuffer::CPageBuffer(CPrinterPort* aPrinterPort,TInt aGranularity):

	CActive(CActive::EPriorityLow),

	iRequestStatus(NULL),

	iWritePos(0),

	iGranularity(aGranularity),

	iBuffer(NULL),

	iPtr(NULL,0),

	iPrinterPort(aPrinterPort),

	iWriteStream(),

	iWriteStreamBuffer(NULL)

	{

	__DECLARE_NAME(_S("CPageBuffer"));

	}

void CPageBuffer::Queue()

	{

	TPtr8 ptr=iBuffer->Ptr(iWritePos);

	iPtr.Set(ptr);

	iPrinterPort->WriteRequest(iPtr,iStatus);

	iWritePos+=iPtr.Length();

	SetActive();

	}

/** 

  This function is internal only, and is not intended for use. 

  @internalTechnology

*/

EXPORT_C TTextFormat::TTextFormat():

	iUnderlineStyle(EUnderlineOff),

	iStrikethroughStyle(EStrikethroughOff),

	iColor(KRgbBlack),

	iFontString(_L8("")),

	iFontStyle()

	{

	}

EXPORT_C TTextFormat::TTextFormat(const TFontUnderline anUnderlineStyle,const TFontStrikethrough aStrikethroughStyle,const TRgb& aColor,const TDesC8& aFontString,const TFontStyle& aFontStyle):

	iUnderlineStyle(anUnderlineStyle),

	iStrikethroughStyle(aStrikethroughStyle),

	iColor(aColor),

	iFontString(aFontString),

	iFontStyle(aFontStyle)

	{

	}

EXPORT_C TBool TTextFormat::operator == (const TTextFormat& aFormat) const

	{

	return (iUnderlineStyle==aFormat.iUnderlineStyle) &&

	       (iStrikethroughStyle==aFormat.iStrikethroughStyle) &&

	       (!iFontString.Compare(aFormat.iFontString)) && 

	       (iFontStyle==aFormat.iFontStyle) && (iColor==aFormat.iColor);

	}

EXPORT_C CPageTextEntry::CPageTextEntry(const TPoint& aDrawPos,TInt aHeightInPixels,TInt aTextWidthInPixels,HBufC8* aText,TTextFormat* aTextFormat):

	iDrawPos(aDrawPos),

	iHeightInPixels(aHeightInPixels),

	iTextWidthInPixels(aTextWidthInPixels),

	iText(aText),

	iTextFormat(aTextFormat)

	{

	__DECLARE_NAME(_S("CPageTextEntry"));

	}

EXPORT_C CPageTextEntry::~CPageTextEntry()

	{

	delete iText;

	}

EXPORT_C TPoint CPageTextEntry::TopTextPos()

	{

	return iDrawPos-TPoint(0,iHeightInPixels);

	}

CPageText::CPageText()

	{

	}

void CPageText::ConstructL()

	{

	iTextFormatList = new(ELeave) CArrayPtrFlat<TTextFormat>(8);

	iPageTextEntryList = new(ELeave) CArrayPtrFlat<CPageTextEntry>(8);

	}

EXPORT_C CPageText* CPageText::NewL()

	{

	CPageText* pagetext = new(ELeave) CPageText;

	CleanupStack::PushL(pagetext);

	pagetext->ConstructL();

	CleanupStack::Pop();

	return pagetext;

	}

EXPORT_C CPageText::~CPageText()

	{

	Reset();

	delete iPageTextEntryList;

	delete iTextFormatList;

	}

EXPORT_C void CPageText::Reset()

	{

	if (iPageTextEntryList)

		iPageTextEntryList->ResetAndDestroy();

	if (iTextFormatList)

		iTextFormatList->ResetAndDestroy();

	}

EXPORT_C void CPageText::AddEntryL(const TPoint& aPoint,const TFontUnderline aUnderlineStyle,const TFontStrikethrough aStrikethroughStyle,const TRgb& aColor,const CInfoFont* aFont,const TDesC& aString)

	{

	TTextFormat textformat(aUnderlineStyle,aStrikethroughStyle,aColor,aFont->CommandString(),aFont->FontSpecInTwips().iFontStyle);

	TInt count=iTextFormatList->Count();

	TTextFormat* tf;

	TInt i;

	for (i = 0; ; i++)

		{

		if (i==count)

			{

			tf=new(ELeave) TTextFormat(textformat);

			CleanupStack::PushL(tf);

			iTextFormatList->AppendL(tf);

			CleanupStack::Pop();

			break;

			}

		tf=(*iTextFormatList)[i];

		if (textformat==*tf)

			break;

		}

	HBufC8* text=aFont->TranslateStringL(aString);

	CleanupStack::PushL(text);

	CPageTextEntry* textentry=new(ELeave) CPageTextEntry(aPoint+TPoint(0,aFont->BaselineOffsetInPixels()),aFont->HeightInPixels(),aFont->MeasureText(aString),text,tf);

	CleanupStack::Pop();

	i=0,count=iPageTextEntryList->Count();

	for (; (i<count) && (textentry->iDrawPos.iY>(*iPageTextEntryList)[i]->iDrawPos.iY); i++ )

		{

		}

	for (; (i<count) && (textentry->iDrawPos.iY==(*iPageTextEntryList)[i]->iDrawPos.iY) &&

	                    (textentry->iDrawPos.iX>(*iPageTextEntryList)[i]->iDrawPos.iX); i++)

		{

		}

	CleanupStack::PushL(textentry);

	iPageTextEntryList->InsertL(i,textentry);

	CleanupStack::Pop();

	if (textentry->iHeightInPixels>iMaxFontHeightInPixels)

		iMaxFontHeightInPixels=textentry->iHeightInPixels;

	}

EXPORT_C TInt CPageText::NumEntries()

	{

	return iPageTextEntryList->Count();

	}

EXPORT_C CPageTextEntry* CPageText::operator [] (TInt anIndex)

	{

	return (*iPageTextEntryList)[anIndex];

	}