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newlooklib.lha
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docyclebutton.c
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C/C++ Source or Header
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1993-10-03
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801b
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30 lines
/*
* DOCYCLEBUTTON.C
*/
#include "newlook.h"
extern LONG IntuiTextLength(struct IntuiText *);
extern UWORD AddGadget( struct Window *, struct Gadget *, UWORD );
extern VOID RefreshGList( struct Gadget *, struct Window *, struct Requester *, UWORD );
void DoCycleButton(w,g)
struct Window *w;
struct Gadget *g;
{
if(w && g && g->UserData)
{
USHORT pos= RemoveGadgetSafely(w,g);
struct CycleInfo *ci= (struct CycleInfo *)g->UserData;
struct IntuiText *it= ci->ci_IntuiText;
if(!(it->IText=ci->ci_Items[++ci->ci_CurrentIndex]))
it->IText= ci->ci_Items[ci->ci_CurrentIndex=0];
it->LeftEdge= (g->Width+21-IntuiTextLength(it))/2;
if(pos!=0xFFFF) /* 0xFFFF == (-1) did we really remove the gadget? */
AddGadget(w,g, pos);
RefreshGList(g,w,NULL,1L);
}
}