/*

* Copyright (c) 1997-1999 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 <w32std.h>

#include <gulutil.h>

#include <gulcolor.h>

#include "lafstd.h"

//#include "lafccten.h"  < This file doesn't exist any more.  In fact LafListB isn't used in uikon any more

#include "laflistb.h"

const TInt KLafListBoxBackgroundColor			=15;	// later, this will be a data member of the listbox  

const TInt KLafListBoxItemVGap					=6;		// to allow a box to be drawn around each item

const TInt KLafListBoxPointerRepeatInterval		=100;	// in micro seconds

/*The decision on whether or not to use the following 4 laf values is not 

made here.  Values >= 0 are appropriate (but obviously not too large, such as to

cause overlapping margins in the listbox).*/

/* SERIES 60 LAF */

const TInt KLafListBoxTopMargin					=0;

const TInt KLafListBoxBottomMargin				=0;

const TInt KLafListBoxLeftMargin				=0;

const TInt KLafListBoxRightMargin				=0;

/* END OF SERIES 60 LAF */

const TInt KInnerGutter							=0;		// gutter at the left of textual list items, >= 0 is sensible, 0 turns it off

/*Important display parameters (only) for popout listboxes*/

const TInt KLafListBoxMaxHeightInNumOfItems		=KLafListboxNoMaxCellWidth;				// >= 1 is sensible, KLafListboxNoMaxCellWidth value turns it off

const TInt KLafListBoxMaxCellWidthInNumOfPixels =KLafListboxNoMaxHeightInNumOfItems;	// >= 20 is sensible, KLafListboxNoMaxHeightInNumOfItems value turns it off

EXPORT_C TBool LafListbox::FadeBehind()

	{

	return EFalse;

	}

/**

 * Gets the default border for the matched control in aBorder. Called from the constructor of the matched control.

 */

EXPORT_C void LafListbox::GetDefaultBorder(TGulBorder& aBorder)

	{

	aBorder=TGulBorder(TGulBorder::ENone);

	}

/**

 * Gets the set of border colors for the matched control in aBorderColors. The RGB values of the colors obtained

 * may depend on the the display mode aMode, the environment color list aColorList and the instance of the

 * matched control aMatchedControl. Called by the matched control from its Draw() method and passed on to the

 * Draw() method of TGulBorder. 

 */

EXPORT_C void LafListbox::GetBorderColors(TGulBorder::TColors& aBorderColors, TDisplayMode aDisplayMode, const CColorList& aColorList, const CCoeControl& aMatchedControl)

	{

	ColorUtils::GetRgbDerivedBorderColors( aBorderColors,

			ControlColor(aColorList,aMatchedControl,EColorControlSurroundBackground), aDisplayMode );

	}

/**

 * Gets the default border for the matched control in aBorder. Called from the constructor of the matched control.

 */

EXPORT_C void LafListbox::GetDefaultPopoutBorder(TGulBorder& aBorder)

	{

	aBorder=TGulBorder(TGulBorder::EThickDeepRaisedWithOutline);

	}

/**

 * Gets the set of border colors for the matched control in aBorderColors. The RGB values of the colors obtained

 * may depend on the the display mode aMode, the environment color list aColorList and the instance of the

 * matched control aMatchedControl. Called by the matched control from its Draw() method and passed on to the

 * Draw() method of TGulBorder. 

 */

EXPORT_C void LafListbox::GetPopoutBorderColors(TGulBorder::TColors& aBorderColors, TDisplayMode aDisplayMode, const CColorList& aColorList, const CCoeControl& aMatchedControl)

	{

	ColorUtils::GetRgbDerivedBorderColors( aBorderColors,

			ControlColor(aColorList,aMatchedControl,EColorControlBackground), aDisplayMode );

	}

//INCLUDE THE FOLLOWING SECTION IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ) 

//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^

/*

LOCAL_C TBool DrawFullItemSegment(const TDesC& aDes,TRect& aRect,TInt aLeftXOfRect,

									TInt aRightXOfRect,TInt& aWidthLeftToFitInto,

									CWindowGc& aGc,const CFont& aFont,const TInt aBaseLineOffset,

									TFontUnderline aUnderlineStyle)

	{

	if(aDes.Length() == aFont.TextCount(aDes,aWidthLeftToFitInto))

		{

		aWidthLeftToFitInto -= aFont.TextWidthInPixels(aDes);

		aGc.UseFont(&aFont);

		aGc.SetUnderlineStyle(aUnderlineStyle);

		aRect.iTl.iX = aLeftXOfRect;

		aRect.iBr.iX = aRightXOfRect;

		aGc.DrawText(aDes,aRect,aBaseLineOffset);

		return true;

		}

	else

		{

		return false;

		}

	}

LOCAL_C void DrawPartialItemSegment(const TDesC& aDes,TRect& aRect,

										TInt aLeftXOfRect,TInt& aWidthLeftToFitInto,

										CWindowGc& aGc,const CFont& aFont,const TInt aBaseLineOffset,

										TFontUnderline aUnderlineStyle,TInt aRightXOfRect,

										const TDesC& aEllipsisDes,const CFont& aSecondFont,

										TBool aUseSecondFont)

	{

	aGc.UseFont(&aFont);

	aGc.SetUnderlineStyle(aUnderlineStyle);

	aRect.iTl.iX = aLeftXOfRect;

	aRect.iBr.iX = aRect.iTl.iX + aFont.TextWidthInPixels(aDes.Left(aFont.TextCount(aDes,aWidthLeftToFitInto)));

	aGc.DrawText(aDes.Left(aFont.TextCount(aDes,aWidthLeftToFitInto)),aRect,aBaseLineOffset);

	// the following lines add an ellipsis onto the end of the text segment

	if(aUseSecondFont) // for the case when you must switch fonts

		{

		aGc.UseFont(&aSecondFont);

		}

	aGc.SetUnderlineStyle(EUnderlineOff);

	aRect.iTl.iX = aRect.iBr.iX;

	aRect.iBr.iX = aRightXOfRect;

	aGc.DrawText(aEllipsisDes,aRect,aBaseLineOffset);

	}

*/

EXPORT_C void LafListbox::DrawNormalText(const TDesC& aDes,const CFont& /*aFont*/,CWindowGc& aGc,

										 const TRect& aItemTextRect,const TInt aBaseLineOffset,

										 const CGraphicsContext::TTextAlign aAlign)

	{//static

	TBuf<256> temp = aDes;

	//INCLUDE THE FOLLOWING 2 LINES IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ) 

	//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^

	//ALSO NEED TO 'UNCOMMENT-OUT' THE AFONT PARAMETER IN THE SIGNATURE

	//TInt visibleTextWidth = aItemTextRect.Width() - InnerGutter();

	//TextUtils::ClipToFit(temp,aFont,visibleTextWidth);

	aGc.DrawText(temp,aItemTextRect,aBaseLineOffset,aAlign,InnerGutter());

	}

EXPORT_C void LafListbox::DrawSearchText(const TRect& aItemTextRect,

							CWindowGc& aGc,const CFont& aItemFont,const CFont& aBoldFont,

							const TDesC& aItemText,const TInt aStrPos,const TInt aStrLen,

							const TInt aBaseLineOffset,const CGraphicsContext::TTextAlign aAlign)

	{//static

	//INCLUDE THE FOLLOWING SECTION IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ) 

	//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^

	//ALSO AALIGN PARAMETER SHOULD BE COMMENTED OUT WHEN USING ELLIPSIS

	/*

	TRect rectWithoutInnerGutter = aItemTextRect;	// copied for modification

	if(LafListbox::InnerGutter() != 0)

		{

		rectWithoutInnerGutter.iTl.iX += LafListbox::InnerGutter();

		TRect innerGutterRect(aItemTextRect.iTl.iX,aItemTextRect.iTl.iY,

			aItemTextRect.iTl.iX + LafListbox::InnerGutter(),aItemTextRect.iBr.iY);

		aGc.DrawRect(innerGutterRect);

		}

	TInt maxWidthInPixels = (rectWithoutInnerGutter.Width());

	const TPtrC headBuf = TPtrC(aItemText.Left(aStrPos));

	const TPtrC strBuf = TPtrC(aItemText.Mid(aStrPos,aStrLen));

	const TPtrC tailBuf = TPtrC(aItemText.Right(aItemText.Length()-aStrPos-aStrLen));

	const TInt headLen = aItemFont.TextWidthInPixels(headBuf);

	const TInt stringLen  = aBoldFont.TextWidthInPixels(strBuf);

	const TInt tailLen = aItemFont.TextWidthInPixels(tailBuf);

	const TInt theWidthOfTextSegment = headLen + stringLen + tailLen;

	TRect rect = rectWithoutInnerGutter;

	if (theWidthOfTextSegment < maxWidthInPixels)	// ... or the text segment falls within the rect bounds anyway

		{

		// draw item head up to search string

		rect.iBr.iX = rect.iTl.iX + headLen;

		aGc.DrawText(headBuf, rect, aBaseLineOffset);

		// draw item tail after the search string

		rect.iTl.iX = rect.iBr.iX + stringLen;

		rect.iBr.iX = rectWithoutInnerGutter.iBr.iX;

		aGc.DrawText(tailBuf, rect, aBaseLineOffset);

	    // change font and set underlining on

		aGc.UseFont(&aBoldFont);

		aGc.SetUnderlineStyle(EUnderlineOn);

		// draw the search string part of the item with different font

		rect.iBr.iX = rect.iTl.iX;

		rect.iTl.iX = rect.iBr.iX - stringLen;

		aGc.DrawText(strBuf, rect, aBaseLineOffset);

		}

	else	// must add in ellipsis truncation along with string font

		{

		TBuf<1> ellipsis;  // need it to calculate the width of ellipsis

		ellipsis.Append(0x2026);

		TInt ellipsisWidth = aItemFont.TextWidthInPixels(ellipsis); // width of ellipsis of next segment

		TInt widthLeftToFitInto = maxWidthInPixels - ellipsisWidth;

		if(DrawFullItemSegment(headBuf,rect,rect.iTl.iX,rect.iTl.iX + headLen,

			widthLeftToFitInto,aGc,aItemFont,aBaseLineOffset,EUnderlineOff))

			{

			if(DrawFullItemSegment(strBuf,rect,rect.iBr.iX,rect.iBr.iX + stringLen,

				widthLeftToFitInto,aGc,aBoldFont,aBaseLineOffset,EUnderlineOn))

				{

				if(DrawFullItemSegment(tailBuf,rect,rect.iBr.iX,rectWithoutInnerGutter.iBr.iX,

					widthLeftToFitInto,aGc,aItemFont,aBaseLineOffset,EUnderlineOff))

					{

					}

				else

					{

					DrawPartialItemSegment(tailBuf,rect,rect.iBr.iX,widthLeftToFitInto,

											aGc,aItemFont,aBaseLineOffset,EUnderlineOff,

											rectWithoutInnerGutter.iBr.iX,ellipsis,

											aBoldFont,EFalse);

					}

				}

				else

				{

				DrawPartialItemSegment(strBuf,rect,rect.iBr.iX,widthLeftToFitInto,

										aGc,aBoldFont,aBaseLineOffset,EUnderlineOn,

										rectWithoutInnerGutter.iBr.iX,ellipsis,

										aItemFont,ETrue);							

				}

			}

		else

			{

			DrawPartialItemSegment(headBuf,rect,rect.iTl.iX,widthLeftToFitInto,

									aGc,aItemFont,aBaseLineOffset,EUnderlineOff,

									rectWithoutInnerGutter.iBr.iX,ellipsis,

									aBoldFont,ETrue);

			}

		}

	*/

	//INCLUDE THE FOLLOWING SECTION IF YOU DON'T WANT TO USE AN ELLIPSIS

	//BUT DO INCLUDE IT IF YOU ARE USING ELLIPSIS TRUNCATION ^ELLIPSIS^

	const TPtrC textHead = TPtrC(aItemText.Left(aStrPos));

	const TPtrC searchStr= TPtrC(aItemText.Mid(aStrPos,aStrLen));

	const TPtrC textTail = TPtrC(aItemText.Right(aItemText.Length()-aStrPos-aStrLen));

	const TInt headLen = aItemFont.TextWidthInPixels(textHead);

	const TInt strLen  = aBoldFont.TextWidthInPixels(searchStr);

	const TInt tailLen = aItemFont.TextWidthInPixels(textTail);

	// adjust text alignment by drawing empty rect before text if necessary

	TRect rect = aItemTextRect;

	const TInt textLen = headLen + strLen + tailLen;

	TInt emptyLen = rect.Width() - textLen;

	if ((aAlign==CGraphicsContext::ELeft) || (emptyLen<=0))

		emptyLen = 0;

	else

		{

		if (aAlign==CGraphicsContext::ECenter) emptyLen = (emptyLen>>1);

		//else if (aAlign=ERight) emptyLen = emptyLen;

		}

	// draw item head up to search string

	rect.iBr.iX = rect.iTl.iX + emptyLen + headLen;

	aGc.DrawText( textHead, rect, aBaseLineOffset, CGraphicsContext::ERight );

	// draw item tail after the search string

	rect.iTl.iX = rect.iBr.iX + strLen;

	rect.iBr.iX = aItemTextRect.iBr.iX;

	aGc.DrawText( textTail, rect, aBaseLineOffset );

    // change font and set undelining on

	aGc.UseFont(&aBoldFont);

    aGc.SetUnderlineStyle(EUnderlineOn);

	// draw the search string part of the item with different font

	rect.iBr.iX = rect.iTl.iX;

	rect.iTl.iX = rect.iBr.iX - strLen;

	aGc.DrawText( searchStr, rect, aBaseLineOffset );

	}

EXPORT_C TInt LafListbox::ItemWidth(TInt aViewRectWidth, TInt aDataWidth)

	{

	//INCLUDE THE FOLLOWING LINE IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ), OTHERWISE DON'T ^ELLIPSIS^

	//return aViewRectWidth;

	//INCLUDE THE FOLLOWING LINE IF YOU DON'T WANT TO USE AN ELLIPSIS, OTHERWISE DON'T ^ELLIPSIS^

	return Max(aViewRectWidth, aDataWidth);

	}

EXPORT_C TInt LafListbox::Constant(TConstantType aType)

	{ // static

	switch (aType)

		{

	case EBackgroundColor:

		return KLafListBoxBackgroundColor;

	case EItemVGap:

		return KLafListBoxItemVGap;

	case EPointerRepeatInterval:

		return KLafListBoxPointerRepeatInterval;

	case ETopMargin:

		return KLafListBoxTopMargin;

	case EBottomMargin:

		return KLafListBoxBottomMargin;

	case ELeftMargin:

		return KLafListBoxLeftMargin;

	case ERightMargin:

		return KLafListBoxRightMargin;

	case EMaxHeightInNumOfItems:

		return KLafListBoxMaxHeightInNumOfItems;

	case EMaxCellWidthInNumOfPixels:

		return KLafListBoxMaxCellWidthInNumOfPixels;

	case EInnerGutter:

		return KInnerGutter;

	default:

		break;

		// Panic - unknown type requested

		}

	return 0; // will never reach here	

	}

EXPORT_C void LafListbox::DrawFrame(CWindowGc& /*aGc*/,const TRect& /*aRect*/,const TInt /*aFlags*/)

	{ // static

	}

/**

 * Returns the default flags for the scroll bar for orientation aOrientation.

 * Called when the matched control creates its scroll bar frame..

 */

EXPORT_C TInt LafListbox::DefaultScrollBarFlags(TInt /*aOrientation*/)

	{

	return 0;

	}

/**

 * Gets the default attributes for the scroll bar for orientation aOrientation in aAttributes.

 * Called when the matched control creates its scroll bar frame..

 */

EXPORT_C void LafListbox::GetDefaultScrollBarAttributes(TInt /*aOrientation*/, LafScrollBarFrame::TScrollBarAttributes& aAttributes)

	{

	aAttributes = LafScrollBarFrame::TScrollBarAttributes();

	}