ZFUIScrollThumb Class Reference

abstract scroll thumb for ZFUIScrollView More...

#include <ZFUIScrollThumb.h>

Inheritance diagram for ZFUIScrollThumb:

Public Member Functions
zfanyT< ZFUIScrollView > const &	scrollView (void)
	owner scroll view
zfbool	scrollThumbHorizontal (void)
	this thumb is horizontal or not
virtual void	scrollThumbInit (void)=0
	init the scroll thumb
virtual void	scrollThumbDealloc (void)=0
	destroy the scroll thumb
virtual void	scrollThumbUpdate (void)=0
	update the scroll thumb, this method may be called repeatly
Public Member Functions inherited from ZFInterface
virtual const ZFClass *	classData (void)=0
	get instance's class info
virtual ZFObject *	toObject (void)=0
	convert to ZFObject type

Static Public Member Functions
static const ZFClass *	ClassData (void)
	get class info
static zfidentity	E_ScrollThumbOnUpdate (void)
	see ZFObject::observerNotify
static void	scrollThumbPosFromViewPos (zffloat &scrollThumbResultPos, zffloat &scrollThumbResultSize, zffloat scrollThumbRange, zffloat scrollViewSize, zffloat scrollContentOffset, zffloat scrollContentSize, zffloat scrollThumbMinSize, zffloat headMargin=0, zffloat tailMargin=0)
	util method to calculate scroll thumb's position according to view's position
static void	scrollThumbPosToViewPos (zffloat &scrollContentOffset, zffloat scrollViewSize, zffloat scrollContentSize, zffloat scrollThumbPos, zffloat scrollThumbSize, zffloat scrollThumbRange, zffloat headMargin=0, zffloat tailMargin=0)
	util method to calculate view's position according to scroll thumb's position
Static Public Member Functions inherited from ZFInterface
static const ZFClass *	ClassData (void)
	get class info

Protected Types
typedef ZFInterface	zfsuper
	typedef for super (always ZFInterface for an interface type)
typedef ZFUIScrollThumb	zfself
	typedef for self
Protected Types inherited from ZFInterface
typedef _ZFP_ObjI_Base	zfsuper
	typedef for super (always ZFInterface for an interface type)
typedef ZFInterface	zfself
	typedef for self

Friends
class	ZFUIScrollView

Detailed Description

abstract scroll thumb for ZFUIScrollView

Member Function Documentation

E_ScrollThumbOnUpdate()

static zfidentity ZFUIScrollThumb::E_ScrollThumbOnUpdate ( void )

static

see ZFObject::observerNotify

called when thumb updated

scrollThumbPosFromViewPos()

static void ZFUIScrollThumb::scrollThumbPosFromViewPos ( zffloat & scrollThumbResultPos, zffloat & scrollThumbResultSize, zffloat scrollThumbRange, zffloat scrollViewSize, zffloat scrollContentOffset, zffloat scrollContentSize, zffloat scrollThumbMinSize, zffloat headMargin = 0, zffloat tailMargin = 0 )

static

util method to calculate scroll thumb's position according to view's position

0 result size means no need to show the scroll thumb

scrollThumbInit()

virtual void ZFUIScrollThumb::scrollThumbInit ( void )

pure virtual

init the scroll thumb

Implemented in ZFUIScrollThumbDefault.

scrollThumbDealloc()

virtual void ZFUIScrollThumb::scrollThumbDealloc ( void )

pure virtual

destroy the scroll thumb

Implemented in ZFUIScrollThumbDefault.

scrollThumbUpdate()

virtual void ZFUIScrollThumb::scrollThumbUpdate ( void )

pure virtual

update the scroll thumb, this method may be called repeatly

you may update thumb depending on ZFUIScrollView::scrollViewState

Implemented in ZFUIScrollThumbDefault.

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The documentation for this class was generated from the following file:

• ZFUIScrollThumb.h