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Scroller.h
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1992-09-11
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/*
Scroller.h
Application Kit, Release 2.0
Copyright (c) 1988, 1989, 1990, NeXT, Inc. All rights reserved.
*/
#import "Control.h"
/* Location of scroll arrows within the scroller */
#define NX_SCROLLARROWSMAXEND 0
#define NX_SCROLLARROWSMINEND 1
#define NX_SCROLLARROWSNONE 2
/* Useable parts in the scroller */
#define NX_SCROLLERNOPARTS 0
#define NX_SCROLLERONLYARROWS 1
#define NX_SCROLLERALLPARTS 2
/* Part codes for various parts of the scroller */
#define NX_NOPART 0
#define NX_DECPAGE 1
#define NX_KNOB 2
#define NX_INCPAGE 3
#define NX_DECLINE 4
#define NX_INCLINE 5
#define NX_KNOBSLOT 6
#define NX_JUMP 6
#define NX_SCROLLERWIDTH (18.0)
@interface Scroller : Control
{
float curValue;
float perCent;
NXCoord _knobSize;
int hitPart;
id target;
SEL action;
struct _sFlags {
#ifdef __BIG_ENDIAN__
unsigned int isHoriz:1;
unsigned int arrowsLoc:2;
unsigned int partsUsable:2;
unsigned int _fine:1;
unsigned int _RESERVED:6;
unsigned int _needsEnableFlush:1;
unsigned int _thumbing:1;
unsigned int _slotDrawn:1;
unsigned int _knobDrawn:1;
#else
unsigned int _knobDrawn:1;
unsigned int _slotDrawn:1;
unsigned int _thumbing:1;
unsigned int _needsEnableFlush:1;
unsigned int _RESERVED:6;
unsigned int _fine:1;
unsigned int partsUsable:2;
unsigned int arrowsLoc:2;
unsigned int isHoriz:1;
#endif
} sFlags;
}
- initFrame:(const NXRect *)frameRect;
- drawParts;
- awake;
- (NXRect *)calcRect:(NXRect *)aRect forPart:(int)partCode;
- checkSpaceForParts;
- target;
- setTarget:anObject;
- (SEL)action;
- setAction:(SEL)aSelector;
- sizeTo:(NXCoord)width :(NXCoord)height;
- setArrowsPosition:(int)where;
- drawArrow:(BOOL)whichButton :(BOOL)flag;
- drawKnob;
- drawSelf:(const NXRect *)rects :(int)rectCount;
- highlight:(BOOL)flag;
- (int)testPart:(const NXPoint *)thePoint;
- trackKnob:(NXEvent *)theEvent;
- trackScrollButtons:(NXEvent *)theEvent;
- mouseDown:(NXEvent *)theEvent;
- (int)hitPart;
- (float)floatValue;
- setFloatValue:(float)aFloat :(float)percent;
- setFloatValue:(float)aFloat;
- (BOOL)acceptsFirstMouse;
- write:(NXTypedStream *)stream;
- read:(NXTypedStream *)stream;
/*
* The following new... methods are now obsolete. They remain in this
* interface file for backward compatibility only. Use Object's alloc method
* and the init... methods defined in this class instead.
*/
+ newFrame:(const NXRect *)frameRect;
@end