// 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 "GRDPRINT.H"

EXPORT_C CGridPrinter::~CGridPrinter()

/** Destructor.

Frees resources before destruction of the object. */

	{

	delete iGridLay;

	delete iGridImg;

	delete iPrintLabelImg;

	delete iPrintCellImg;

	delete iZoomFactor;

	}

CGridPrinter::CGridPrinter(CGridLabelImg* aPrintLabelImg,CGridCellImg* aPrintCellImg,TZoomFactor* aZoomFactor)

	: iPrintLabelImg(aPrintLabelImg),

	iPrintCellImg(aPrintCellImg),

	iZoomFactor(aZoomFactor),

	iGraphicsDeviceMap(iZoomFactor->GraphicsDeviceMap())

	{

	}

EXPORT_C CGridPrinter* CGridPrinter::NewL(CGridLay* aGridLay,CGridLabelImg* aPrintLabelImg,

	CGridCellImg* aPrintCellImg,TZoomFactor* aZoomFactor)

/** Creates a new grid printer object.

@param aGridLay A pointer to an object that controls the layout of rows and 

columns.

@param aPrintLabelImg A pointer to an object that draws a grid cell's label.

@param aPrintCellImg A pointer to an object that draws the contents of a single 

cell.

@param aZoomFactor A pointer to the zoom factor object.

@see CGridLay::ConstructL() */

	{

	CGridPrinter* self=new(ELeave) CGridPrinter(aPrintLabelImg,aPrintCellImg,aZoomFactor);

	CleanupStack::PushL(self);

	self->ConstructL(aGridLay);

	CleanupStack::Pop();

	return self;

	}

void CGridPrinter::ConstructL(CGridLay* aGridLay)

	{

	iGridLay=new(ELeave) CGridLay(iZoomFactor);

	iGridImg=CGridImg::NewL(iPrintCellImg,iGridLay);

	iGridImg->SetGridLabelImg(iPrintLabelImg);

	iGridLay->ConstructL(aGridLay,iGridImg);

	}

LOCAL_C void CleanupGridLabelImg(TAny* aObject)

	{

	((CGridLabelImg*)aObject)->ReleaseFont();

	((CGridLabelImg*)aObject)->SetGraphicsDeviceMap(NULL);

	}

EXPORT_C void CGridPrinter::PrintBandL(CGraphicsDevice* aDevice,TInt aPageNo,const TBandAttributes& aBandInPixels)

/** Prints a band.

The function implements MPageRegionPrinter::PrintBandL().

@param aDevice Pointer to the graphics device representing the printer

@param aPageNo The number of the page containing the band to be printed.

@param aBandInPixels Attributes of the band to be printed. */

    {

	if (aBandInPixels.iFirstBandOnPage)

		{

		TSize pageSize=iGridLay->PageSizeInTwips();

		iPrintablePage.SetRect(iTlMarginInTwips,pageSize);

		iZoomFactor->SetGraphicsDeviceMap(iGraphicsDeviceMap);	// the real printing device

		iPrintLabelImg->SetGraphicsDeviceMap(iZoomFactor);

		iPrintLabelImg->NotifyGraphicsDeviceMapChangeL();

		TRect printGridRect=iZoomFactor->TwipsToPixels(iPrintablePage);

		printGridRect.iTl+=TPoint(1,1); //For border

		iGridImg->SetPrintGridRect(printGridRect);

		iPrintLabelImg->ReleaseFont();

		TRangeRef pageRange=iGridLay->PageToRange(aPageNo,CGridLay::ERightThenDown/*!!For Now*/);

		iGridLay->SetPrintRange(pageRange);

		}

	iZoomFactor->SetGraphicsDeviceMap(aDevice);

	iPrintLabelImg->SetGraphicsDeviceMap(iZoomFactor);

	iPrintLabelImg->NotifyGraphicsDeviceMapChangeL();

	TRect printablePageInPixels=iZoomFactor->TwipsToPixels(iPrintablePage);

	iScaleFactor=(iGridImg->GridRect().Height()*CGridImg::EScaleOneToOne-1)/printablePageInPixels.Height()+1;//Round up

	TRect printRect=aBandInPixels.iRect;

	if (!printRect.Intersects(printablePageInPixels))

		return;

	printRect.Intersection(printablePageInPixels);

	TRangeRef printRange=iGridLay->VisibleRange();

	printRange.iFrom.iRow=Max(printRange.iFrom.iRow,iGridLay->YValToRow(printRect.iTl.iY*iScaleFactor/CGridImg::EScaleOneToOne));

	printRange.iTo.iRow=Min(printRange.iTo.iRow,iGridLay->YValToRow(printRect.iBr.iY*iScaleFactor/CGridImg::EScaleOneToOne));

	CleanupStack::PushL(TCleanupItem(CleanupGridLabelImg,iPrintLabelImg));

	CGraphicsContext* printerGc;

	User::LeaveIfError(aDevice->CreateContext(printerGc));

	CleanupStack::PushL(printerGc);

	iGridImg->PrintGridLinesAndCellsInRangeL(printerGc,printRange,iScaleFactor);

	CleanupStack::PopAndDestroy(2);	// printerGc + CleanupGridLabelImg

    }

EXPORT_C void CGridPrinter::SetTopLeftMargin(const TPoint& aTlMarginInTwips)

/** Sets the top left margin.

@param aTlMarginInTwips The top left margin, in twips. */

	{

	iTlMarginInTwips=aTlMarginInTwips;

	}

EXPORT_C void CGridPrinter::SetPageSizeInTwipsL(const TSize& aSizeInTwips)

/** Sets the size of the page.

@param aSizeInTwips The size of the page, in twips. */

	{

	if (!iGridLay->IsAutoPagination())

		{

		iGridLay->SetPageSizeInTwipsL(aSizeInTwips);	// won't leave

		return;

		}

	SetGdMapAndPushLabelImgLC();

	iGridLay->SetPageSizeInTwipsL(aSizeInTwips);

	CleanupStack::PopAndDestroy();	// CleanupGridLabelImg

	}

EXPORT_C void CGridPrinter::PaginateL()

/** Paginates the grid. */

	{

	if (iGridLay->IsPaginated())

		return;

	SetGdMapAndPushLabelImgLC();

	iGridLay->PaginateL();

	CleanupStack::PopAndDestroy();	// CleanupGridLabelImg

	}

void CGridPrinter::SetGdMapAndPushLabelImgLC()

	{

	iZoomFactor->SetGraphicsDeviceMap(iGraphicsDeviceMap);	// re-paginate with the real printing device

	iPrintLabelImg->SetGraphicsDeviceMap(iZoomFactor);

	iPrintLabelImg->NotifyGraphicsDeviceMapChangeL();

	iGridLay->SetGraphicsDeviceMap(iZoomFactor);	// Pointer value is same but internal rep. may be different

	CleanupStack::PushL(TCleanupItem(CleanupGridLabelImg,iPrintLabelImg));

	}