/*

    File:       ScrollBars.h

    Contains:   Header for scroll bars live scrolling implementation.

    Written by: Chris White 

    Copyright:  Copyright © 1996-1999 by Apple Computer, Inc., All Rights Reserved.

                You may incorporate this Apple sample source code into your program(s) without

                restriction. This Apple sample source code has been provided "AS IS" and the

                responsibility for its operation is yours. You are not permitted to redistribute

                this Apple sample source code as "Apple sample source code" after having made

                changes. If you're going to re-distribute the source, we require that you make

                it clear in the source that the code was descended from Apple sample source

                code, but that you've made changes.

    Change History (most recent first):

                8/6/1999    Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1

*/

#ifndef __SCROLLBARS__

#define __SCROLLBARS__

enum

{

    // Misc scroll bar constants

    kScrollBarWidth = 16,

    kScrollBarWidthAdjust = kScrollBarWidth - 1,

    kScrollArrowWidth = 16,

    kScrollThumbWidth = 16,

    kTotalWidthAdjust = (kScrollArrowWidth * 2) + kScrollThumbWidth,

    kPageOverlap = 10,

    kThumbTrackWidthSlop = 25,

    kThumbTrackLengthSlop = 113

};

typedef pascal void (*IndicatorActionProc)(void);

#if GENERATINGCFM

typedef UniversalProcPtr IndicatorActionUPP;

#else

typedef IndicatorActionProc IndicatorActionUPP;

#endif

enum

{

    uppIndicatorActionProcInfo = kPascalStackBased

};

#if GENERATINGCFM

#define NewIndicatorActionProc(userRoutine)     \

        (IndicatorActionUPP) NewRoutineDescriptor((ProcPtr)(userRoutine), uppIndicatorActionProcInfo, GetCurrentArchitecture())

#else

#define NewIndicatorActionProc(userRoutine)     \

        ((IndicatorActionUPP) (userRoutine))

#endif

#if GENERATINGCFM

#define CallIndicatorActionProc(userRoutine)    \

        CallUniversalProc((UniversalProcPtr)(userRoutine), uppIndicatorActionProcInfo)

#else

#define CallIndicatorActionProc(userRoutine)    \

        (*(userRoutine))()

#endif

#endif  // __SCROLLBARS__