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/******************************************************************************
*
* Copyright (c) 1996-1999 Palm Computing, Inc. or its subsidiaries.
* All rights reserved.
*
* File: ScrollBar.h
*
* Description:
* This file defines scroll bar structures and routines.
*
* History:
* Feb 6, 1996 Created by Art Lamb
*
*****************************************************************************/
#ifndef __SCROLLBAR_H__
#define __SCROLLBAR_H__
#include <PalmTypes.h>
#include <CoreTraps.h>
#include <Rect.h>
#include <Event.h>
typedef enum { sclUpArrow, sclDownArrow, sclUpPage, sclDownPage, sclCar }
ScrollBarRegionType;
typedef struct {
UInt16 usable :1; // Set if part of ui
UInt16 visible :1; // Set if drawn, used internally
UInt16 hilighted :1; // Set if region is hilighted
UInt16 shown :1; // Set if drawn and maxValue > minValue
UInt16 activeRegion :4; // ScrollBarRegionType
} ScrollBarAttrType;
typedef struct ScrollBarType {
RectangleType bounds;
UInt16 id;
ScrollBarAttrType attr;
Int16 value;
Int16 minValue;
Int16 maxValue;
Int16 pageSize;
Int16 penPosInCar;
Int16 savePos;
} ScrollBarType;
typedef ScrollBarType *ScrollBarPtr;
#ifdef REMOVE_FOR_EMULATOR
#ifdef __cplusplus
extern "C" {
#endif
extern void SclGetScrollBar (const ScrollBarPtr bar, Int16 *valueP,
Int16 *minP, Int16 *maxP, Int16 *pageSizeP)
SYS_TRAP(sysTrapSclGetScrollBar);
extern void SclSetScrollBar (const ScrollBarPtr bar, Int16 value,
const Int16 min, const Int16 max, const Int16 pageSize)
SYS_TRAP(sysTrapSclSetScrollBar);
extern void SclDrawScrollBar (const ScrollBarPtr bar)
SYS_TRAP(sysTrapSclDrawScrollBar);
extern Boolean SclHandleEvent (const ScrollBarPtr bar, const EventType *event)
SYS_TRAP(sysTrapSclHandleEvent);
#ifdef __cplusplus
}
#endif
#endif
#endif //__SCROLLBAR_H__
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