64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/***********************************************************************
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*
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* Copyright (c) 1996-1997, Palm Computing Inc., All Rights Reserved
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*
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* PROJECT: Pilot
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* FILE: ScrollBar.h
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* AUTHOR: Art Lamb: Feb 6, 1996
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*
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* DECLARER: UI
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*
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* DESCRIPTION:
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* This file defines scroll bar structures and routines.
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*
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***********************************************************************/
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#ifndef __SCROLLBAR_H__
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#define __SCROLLBAR_H__
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typedef enum { sclUpArrow, sclDownArrow, sclUpPage, sclDownPage, sclCar }
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ScrollBarRegionType;
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typedef struct {
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Word usable :1; // Set if part of ui
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Word visible :1; // Set if drawn, used internally
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Word hilighted :1; // Set if region is hilighted
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Word shown :1; // Set if drawn and maxValue > minValue
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Word activeRegion :4; // ScrollBarRegionType
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} ScrollBarAttrType;
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typedef struct {
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RectangleType bounds;
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Word id;
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ScrollBarAttrType attr;
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Short value;
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Short minValue;
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Short maxValue;
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Short pageSize;
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Short penPosInCar;
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Short savePos;
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} ScrollBarType;
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typedef ScrollBarType * ScrollBarPtr;
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extern void SclGetScrollBar (ScrollBarPtr bar, ShortPtr valueP, ShortPtr minP,
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ShortPtr maxP, ShortPtr pageSizeP)
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SYS_TRAP(sysTrapSclGetScrollBar);
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extern void SclSetScrollBar (ScrollBarPtr bar, short value, short min,
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short max, short pageSize)
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SYS_TRAP(sysTrapSclSetScrollBar);
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extern void SclDrawScrollBar (ScrollBarPtr bar)
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SYS_TRAP(sysTrapSclDrawScrollBar);
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extern Boolean SclHandleEvent (ScrollBarPtr bar, EventPtr event)
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SYS_TRAP(sysTrapSclHandleEvent);
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#endif __SCROLLBAR_H__
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