/*

* 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 <gulbordr.h>

#include <gulcolor.h>

#include <gulutil.h>

#include <coecntrl.h>

#include <gulfont.h>

#include "LAFSTD.H"

#include "LAFSCBUT.H"

#include "LAFSCRLB.H"

#include "lafmain.h"

#include <uiklaf/private/lafenv.h>

#include "lafcommn.h"

#include "eiksfont.h"

const TInt KArrowHeadScrollBarHeight=15;

//

// local functions specific to our type of scrollbar button

//

LOCAL_C TRgb IconColor(const MLafEnv& aLafEnv, const CCoeControl& aScrollButton,TBool aPressed)

	{

	TLogicalColor color=EColorScrollButtonIcon;

	if (aScrollButton.IsDimmed())

		color=EColorScrollButtonIconDimmed;

	else if (aPressed)

		color=EColorScrollButtonIconPressed;

	return aLafEnv.ControlColor(color,aScrollButton);

	}

LOCAL_C void DrawIcon(const MLafEnv& aLafEnv,CWindowGc& aGc,TRect& aRect,const CCoeControl& aScrollButton,TInt aButtonType,TBool aPressed)

	{

	TInt charCode=0;

	switch (aButtonType)

		{

    default:

        break;

	case SLafScrollButton::ENudgeUp:

		charCode=ESymFontScrollUp;

		break;

	case SLafScrollButton::ENudgeDown:

		charCode=ESymFontScrollDown;

		break;

	case SLafScrollButton::ENudgeLeft:

		charCode=ESymFontScrollLeft;

		break;

	case SLafScrollButton::ENudgeRight:

		charCode=ESymFontScrollRight;

		break;

	case SLafScrollButton::EPageUp:

		charCode=ESymFontScrollPageUp;

		break;

	case SLafScrollButton::EPageDown:

		charCode=ESymFontScrollPageDown;

		break;

	case SLafScrollButton::EPageLeft:

		charCode=ESymFontScrollPageLeft;

		break;

	case SLafScrollButton::EPageRight:

		charCode=ESymFontScrollPageRight;

		break;

	case SLafScrollButton::ETop:

		charCode=ESymFontScrollToTop;

		break;

	case SLafScrollButton::EBottom:

		charCode=ESymFontScrollToBottom;

		break;

	case SLafScrollButton::EHome:

		charCode=ESymFontScrollToLeftEnd;

		break;

	case SLafScrollButton::EEnd:

		charCode=ESymFontScrollToRightEnd;

		break;

		}

	TBuf<1> symbol;

	symbol.Append(TChar(charCode));

	TLogicalFont logicalFont;

	logicalFont.iFontId=TUid::Uid(KLafUidSymbolFontVal);

	const CFont* symFont=aLafEnv.Font(logicalFont);

	aGc.UseFont(symFont);

	aGc.SetPenStyle(CGraphicsContext::ESolidPen);

	aGc.SetPenColor(IconColor(aLafEnv,aScrollButton,aPressed));

	const TInt extraVerticalSpace=(aRect.Height() - symFont->HeightInPixels());

	const TInt baselineOffset=Max(symFont->AscentInPixels(),extraVerticalSpace/2 + symFont->AscentInPixels());

	aGc.DrawText(symbol,aRect,baselineOffset,CGraphicsContext::ECenter);

	aGc.DiscardFont();

	}

//

// Class LafScrollButton

//

EXPORT_C void LafScrollButton::GetBorder(TGulBorder& aBorder, TBool aIsPressed)

	{

	TInt adj = aBorder.Adjacent();

	aBorder=TGulBorder(aIsPressed ? TGulBorder::EShallowSunken : TGulBorder::EDeepRaised);

	aBorder.SetAdjacent(adj);

	}

/**

 * 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, the environment color list 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 LafScrollButton::GetBorderColors(TGulBorder::TColors& aBorderColors, const MLafEnv& aLafEnv, const CCoeControl& aMatchedControl)

	{

	LafCommonUtils::GetRgbDerivedBorderColors( aBorderColors,

			EColorScrollButtonThumbBackground, aLafEnv,aMatchedControl );

	}

EXPORT_C TInt LafScrollButton::ButtonBreadth()

	{ // should this be allowed...

	return LafScrollBar::DefaultBreadth();

	}

EXPORT_C void LafScrollButton::DrawButton(const MLafEnv& aLafEnv,CWindowGc& aGc,const CCoeControl& aScrollButton,const TRect& aRect,TInt aButtonType,TBool aPressed)

	{

	TRect rect(aRect);

	const TRgb brushColor=aLafEnv.ControlColor((aPressed? EColorScrollButtonThumbBackgroundPressed : EColorScrollButtonThumbBackground),aScrollButton);

	aGc.SetBrushColor(brushColor);

	aGc.Clear(rect);

//

	if (aPressed)

		rect.iTl+=TPoint(2,2);

	DrawIcon(aLafEnv,aGc,rect,aScrollButton,aButtonType,aPressed);

	}

EXPORT_C void LafScrollButton::GetColorUseListL(CArrayFix<TCoeColorUse>& aColorUseList)

	{ // static

	TInt commonAttributes = TCoeColorUse::ESurrounds|TCoeColorUse::ENormal|TCoeColorUse::ENeutral;

	TCoeColorUse colorUse;

	colorUse.SetLogicalColor(EColorScrollButtonThumbBackgroundPressed);

	colorUse.SetUse(TCoeColorUse::EBack|TCoeColorUse::EPressed|commonAttributes);

	aColorUseList.AppendL(colorUse);

	colorUse.SetLogicalColor(EColorScrollButtonThumbBackground);

	colorUse.SetUse(TCoeColorUse::EBack|TCoeColorUse::EActive|commonAttributes);

	aColorUseList.AppendL(colorUse);

	colorUse.SetLogicalColor(EColorScrollButtonIcon);

	colorUse.SetUse(TCoeColorUse::EFore|TCoeColorUse::EActive|commonAttributes);

	aColorUseList.AppendL(colorUse);

	colorUse.SetLogicalColor(EColorScrollButtonIconDimmed);

	colorUse.SetUse(TCoeColorUse::EFore|TCoeColorUse::EDimmed|commonAttributes);

	aColorUseList.AppendL(colorUse);

	colorUse.SetLogicalColor(EColorScrollButtonIconPressed);

	colorUse.SetUse(TCoeColorUse::EFore|TCoeColorUse::EPressed|commonAttributes);

	aColorUseList.AppendL(colorUse);

	}

//

// class LafArrowHeadScrollButton

//

EXPORT_C void LafArrowHeadScrollButton::GetBorder(TGulBorder& aBorder, TBool /*aIsPressed*/)

	{

	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, the environment color list 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 LafArrowHeadScrollButton::GetBorderColors(TGulBorder::TColors& aBorderColors, const MLafEnv& aLafEnv, const CCoeControl& aMatchedControl)

	{

	LafCommonUtils::GetRgbDerivedBorderColors( aBorderColors,

			EColorScrollButtonThumbBackground, aLafEnv,aMatchedControl );

	}

EXPORT_C TInt LafArrowHeadScrollButton::ButtonBreadth()

	{

	return KArrowHeadScrollBarHeight;

	}

EXPORT_C void LafArrowHeadScrollButton::DrawButton(const MLafEnv& aLafEnv,CWindowGc& aGc,const CCoeControl& aScrollButton,const TRect& aRect,TInt aButtonType,TBool aPressed)

	{

	TRect rect(aRect);

	const TRgb brushColor=aLafEnv.ControlColor(EColorMenuPaneBackground,aScrollButton);

	aGc.SetBrushColor(brushColor);

	aGc.Clear(rect);

//

	if (aPressed)

		rect.iTl+=TPoint(2,2);

	DrawIcon(aLafEnv,aGc,rect,aScrollButton,aButtonType,aPressed);

	}