1 /*

     2 * Copyright (c) 1997-1999 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 #ifndef __LAFSCRLB_H__

    20 #define __LAFSCRLB_H__

    21 

    22 #include <e32std.h>

    23 #include <gulbordr.h>

    24 #include <coecntrl.h>

    25 #include <lafpublc.h>

    26 

    27 class MLafEnv;

    28 class CWindowGc;

    29 

    30 /**

    31  * @internal

    32  * Do not use

    33  */

    34 class LafScrollBar

    35 	{

    36 public:

    37 	inline static TInt MinimumThumbLength();

    38 	inline static TInt DefaultFlags();

    39 	inline static TInt DefaultBreadth();

    40 	inline static TInt BorderWidth();

    41 	inline static TInt DefaultButtonPositionFlags();

    42 	IMPORT_C static void GetDefaultBorder(TGulBorder& aBorder);

    43 	IMPORT_C static void GetBorderColors(TGulBorder::TColors& aBorderColors,const MLafEnv& aEnv,const CCoeControl& aMatchedControl);

    44 // added to allow differing style of scrollbars

    45 	IMPORT_C static void DrawShaft(const MLafEnv& aLafEnv,const CCoeControl& aScrollBar,CWindowGc& aGc,const TRect& aRect,TInt aScrollBarDisplayFlags,TBool aHorizontal);

    46 	IMPORT_C static void DrawShaftAroundThumb(const MLafEnv& aLafEnv,const CCoeControl& aScrollBar,CWindowGc& aGc,const TRect& aShaftRect,TBool aHorizontal,TInt aThumbPos,TInt aThumbLength);

    47 	IMPORT_C static void RedrawShaft(const MLafEnv& aLafEnv,const CCoeControl& aScrollBar,CWindowGc& aGc, const TRect& aRect,TInt aShaftStart,TInt aShaftEnd,TBool aHorizontal);

    48 	IMPORT_C static void DrawHighlightedShaftArea(const MLafEnv& aLafEnv, const CCoeControl& aScrollBar, CWindowGc& aGc, TRect& aArea, TBool aIsHighlighted,

    49 		TInt aThumbPos, TInt aThumbLength, TBool aHorizontal);

    50 	IMPORT_C static TInt CalculateThumbLength(TInt aShaftLength,TInt aModelScrollSpan,

    51 		TInt aModelThumbSpan);

    52 	IMPORT_C static TInt CalcThumbPosInScrollBar(TInt aShaftStart, TInt aShaftEnd,

    53 		TInt aThumbLength,TInt aModelThumbPos,TInt aModelScrollSpan,TInt aModelThumbSpan );

    54 	IMPORT_C static TInt CalcThumbPosInScrollBarModel(TInt aShaftStart, TInt aShaftEnd,

    55 		TInt aThumbLength,TInt aThumbPos,TInt aModelScrollSpan,TInt aModelThumbSpan );

    56 	IMPORT_C static void GetColorUseListL(CArrayFix<TCoeColorUse>& aColorUseList);

    57 	IMPORT_C static TBool IsPointerOutOfDragRange(const TPoint& aPointerPosition,const TRect& aScrollBarRect,TBool aHorizontal);

    58 	IMPORT_C static TBool IsBorderOutsideButtons();

    59 	IMPORT_C static void AdjustButtonExtentForScrollBarBorder(TPoint& aPosition,TSize& aSize,TInt aButtonType,TInt aScrollBarFlags, TBool aHorizontal, const TMargins& aMargins);

    60 	IMPORT_C static void AdjustShaftRangeForScrollBarBorder(TInt& aShaftStart,TInt& aShaftEnd,TBool aHorizontal,TInt aScrollBarFlags,const TMargins& aMargins);

    61 private:

    62 	enum TConstantType

    63 		{

    64 		EMinimumThumbLen,

    65 		EDefaultFlags,

    66 		EDefaultBreadth,

    67 		EBorderWidth,

    68 		EDefaultButtonPositionFlags

    69 		};

    70 private:

    71 	IMPORT_C static TInt Constant(TConstantType aConstant);

    72 	};

    73 

    74 class LafArrowHeadScrollBar

    75 	{

    76 public:

    77 	IMPORT_C static void GetDefaultBorder(TGulBorder& aBorder);

    78 	IMPORT_C static void GetBorderColors(TGulBorder::TColors& aBorderColors,const MLafEnv& aEnv,const CCoeControl& aMatchedControl);

    79 	};

    80 

    81 inline TInt LafScrollBar::MinimumThumbLength()

    82 	{return Constant(EMinimumThumbLen);}

    83 inline TInt LafScrollBar::DefaultFlags()

    84 	{return Constant(EDefaultFlags);}

    85 inline TInt LafScrollBar::DefaultBreadth()

    86 	{return Constant(EDefaultBreadth);}

    87 inline TInt LafScrollBar::BorderWidth()

    88 	{return Constant(EBorderWidth);}

    89 

    90 /**

    91  * Returns the button position flags which will be used if they have

    92  * not already been setup during scroll bar creation. 

    93  *

    94  * @since App-Framework_6.1

    95  */

    96 inline TInt LafScrollBar::DefaultButtonPositionFlags()

    97 	{return Constant(EDefaultButtonPositionFlags);}

    98 

    99 #endif