//  common.h
//
//  by John D. de Boer

#include "abcdefg.h"
#include "base.h"
#include "colour.h"


//  System error message strings

char *osmemerrormsg(int E);


//  Text controls

ControlRef gettextcontrol(WindowRef W, OSType Sig, SInt32 ID);
void setstatictext(ControlRef C, const char *S);
void setedittext(ControlRef C, const char *S, bool Sel);
void getedittext(ControlRef C, char **S);


//  Basic modal dialog boxes

bool modalokay(void);
void initnibdialog(IBNibRef Nib, const char *Name, WindowRef *WP);
void halt(const char *Msg);
void error(const char *Msg);
void notification(const char *Msg);
bool modaltextentry(const char *Msg, char **S);


//  Dynamic memory allocation

void *pointer(ulong N);
void old(void *P);

void **handle(ulong N);

#define release(H) releasehandle((void **)(H))
#define lock(H) lockhandle((void **)(H))
#define unlock(H) unlockhandle((void **)(H))
#define purgeable(H) purgeablehandle((void **)(H))
#define unpurgeable(H) unpurgeablehandle((void **)(H))
#define resizehandle(H,N) resizevoidhandle((void **)(H),N)
#define minimumsize(H,N,S) minimumsizehandle((void **)(H),N,S)
#define fuzzyresize(H,N,S) fuzzyresizehandle((void **)(H),N,S)

void releasehandle(void **H);
void lockhandle(void **H);
void unlockhandle(void **H);
//void purgeablehandle(void **H);
//void unpurgeablehandle(void **H);
void resizevoidhandle(void **H, ulong SIZE);
void minimumsizehandle(void **H, ulong N, ulong SIZE);
void fuzzyresizehandle(void **H, ulong N, ulong SIZE);


//  Sorting

typedef bool (*orderprocptr)(const void *A, const void *B);

#define sort(L,N,P) sortlist((void **)(L),N,P)

void sortlist(void **List, int NUM, orderprocptr InOrder);


//  This function must be called first by all programs using this library.

void initmacintosh(void);