palm-os-sdk/sdk-3.1/include/Core/UI/ScrollBar.h
2016-08-25 07:53:48 -03:00

71 lines
1.8 KiB
C

/***********************************************************************
*
* Copyright (c) 1994-1999 3Com Corporation or its subsidiaries.
* All rights reserved.
*
* PROJECT: Pilot
* FILE: ScrollBar.h
* AUTHOR: Art Lamb: Feb 6, 1996
*
* DECLARER: UI
*
* DESCRIPTION:
* This file defines scroll bar structures and routines.
*
***********************************************************************/
#ifndef __SCROLLBAR_H__
#define __SCROLLBAR_H__
typedef enum { sclUpArrow, sclDownArrow, sclUpPage, sclDownPage, sclCar }
ScrollBarRegionType;
typedef struct {
Word usable :1; // Set if part of ui
Word visible :1; // Set if drawn, used internally
Word hilighted :1; // Set if region is hilighted
Word shown :1; // Set if drawn and maxValue > minValue
Word activeRegion :4; // ScrollBarRegionType
} ScrollBarAttrType;
typedef struct {
RectangleType bounds;
Word id;
ScrollBarAttrType attr;
Short value;
Short minValue;
Short maxValue;
Short pageSize;
Short penPosInCar;
Short savePos;
} ScrollBarType;
typedef ScrollBarType * ScrollBarPtr;
#ifdef __cplusplus
extern "C" {
#endif
extern void SclGetScrollBar (const ScrollBarPtr bar, const ShortPtr valueP,
const ShortPtr minP, const ShortPtr maxP, const ShortPtr pageSizeP)
SYS_TRAP(sysTrapSclGetScrollBar);
extern void SclSetScrollBar (const ScrollBarPtr bar, Short value,
const Short min, const Short max, const Short pageSize)
SYS_TRAP(sysTrapSclSetScrollBar);
extern void SclDrawScrollBar (const ScrollBarPtr bar)
SYS_TRAP(sysTrapSclDrawScrollBar);
extern Boolean SclHandleEvent (const ScrollBarPtr bar, const EventPtr event)
SYS_TRAP(sysTrapSclHandleEvent);
#ifdef __cplusplus
}
#endif
#endif __SCROLLBAR_H__