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/* Copyright (c) 1992 The Geometry Center; University of Minnesota
1300 South Second Street; Minneapolis, MN 55454, USA;
This file is part of geomview/OOGL. geomview/OOGL is free software;
you can redistribute it and/or modify it only under the terms given in
the file COPYING, which you should have received along with this file.
This and other related software may be obtained via anonymous ftp from
geom.umn.edu; email: software@geom.umn.edu. */
static char *copyright = "Copyright (C) 1992 The Geometry Center";
/* Authors: Charlie Gunn, Stuart Levy, Tamara Munzner, Mark Phillips */
#include <string.h>
#include "ooglutil.h"
#include "windowP.h"
#define SETFLAG(flag, bit, value) \
if (value) flag |= bit; \
else flag &= ~bit
#define GETFLAG(flag, bit) ( (flag & bit) != 0 )
static void WnSetName(WnWindow *win, char *name);
WnWindow *
WnCreate(int firstattr, ...)
{
register WnWindow *win;
va_list a_list;
win = OOGLNewE ( WnWindow, "WnCreate WnWindow" );
RefInit((Ref *)win, WINDOWMAGIC);
win->xsize = -1;
win->ysize = -1;
win->pixaspect = 1.0;
win->win_name = NULL;
win->changed = win->flag = WNF_ENLARGE | WNF_SHRINK;
va_start(a_list, firstattr);
win = _WnSet(win, firstattr, &a_list);
va_end( a_list );
return win;
}
static void
WnSetName(WnWindow *win, char *name)
{
if (win->win_name != NULL) free(win->win_name);
win->win_name = name ? strdup(name) : NULL;
}
WnWindow *
WnSet(register WnWindow *win, int firstattr, ...)
{
va_list a_list;
va_start(a_list, firstattr);
win = _WnSet(win, firstattr, &a_list);
va_end( a_list );
return win;
}
WnWindow *
_WnSet(register WnWindow *win, int firstattr, register va_list *alist)
{
int attr;
register WnPosition *pos;
register int oldflag;
char *name;
char **ablock = NULL;
#define NEXT(type) OOGL_VA_ARG(type,alist,ablock)
/* Parse args */
for(attr = firstattr; attr != WN_END; attr = NEXT(int)) {
switch (attr) {
case WN_ABLOCK:
ablock = NEXT(char **);
break;
case WN_XSIZE:
win->xsize = NEXT(int);
goto sized;
case WN_YSIZE:
win->ysize = NEXT(int);
sized:
win->flag |= WNF_HASSIZE;
win->changed |= WNF_HASSIZE;
break;
case WN_CURPOS:
pos = NEXT(WnPosition *);
if(pos) {
win->cur = *pos;
win->aspect = (pos->ymax != pos->ymin) ?
(double)(pos->xmax - pos->xmin)
/ (double)(pos->ymax - pos->ymin) : 1.0;
win->xsize = win->cur.xmax - win->cur.xmin + 1;
win->ysize = win->cur.ymax - win->cur.ymin + 1;
win->flag |= WNF_HASCUR|WNF_HASSIZE;
} else {
win->flag &= ~WNF_HASCUR;
}
win->changed |= WNF_HASCUR;
break;
case WN_PREFPOS:
pos = NEXT(WnPosition *);
if(pos) {
win->pref = *pos;
win->flag |= WNF_HASPREF;
} else
win->flag &= ~WNF_HASPREF;
win->changed |= WNF_HASPREF;
break;
case WN_VIEWPORT:
pos = NEXT(WnPosition *);
if(pos) {
win->viewport = *pos;
win->flag |= WNF_HASVP;
} else {
win->flag &= ~WNF_HASVP;
}
win->changed |= WNF_HASVP;
break;
case WN_NAME:
name = NEXT(char *);
WnSetName(win, name);
if (name != NULL)
win->flag |= WNF_HASNAME;
else
win->flag &= ~WNF_HASNAME;
win->changed |= WNF_HASNAME;
break;
case WN_ENLARGE:
oldflag = win->flag;
SETFLAG(win->flag, WNF_ENLARGE, NEXT(int));
if (oldflag != win->flag) win->changed |= WNF_ENLARGE;
break;
case WN_SHRINK:
oldflag = win->flag;
SETFLAG(win->flag, WNF_SHRINK, NEXT(int));
if (oldflag != win->flag) win->changed |= WNF_SHRINK;
break;
case WN_NOBORDER:
oldflag = win->flag;
SETFLAG(win->flag, WNF_NOBORDER, NEXT(int));
if (oldflag != win->flag) win->changed |= WNF_NOBORDER;
break;
case WN_PIXELASPECT:
win->pixaspect = NEXT(double);
win->changed |= WNF_HASPIXASPECT;
win->flag |= WNF_HASPIXASPECT;
break;
default:
OOGLError (0, "_WnSet: Undefined attribute: %d", attr);
return NULL;
}
}
return(win);
#undef NEXT
}
/*
* Get a value.
* Returns -1 for invalid attribute, 0 if no value set, 1 if valid value.
*/
int
WnGet(register WnWindow *win, int attr, void *valp)
{
register int bit;
#define WnPos WnPosition
switch(attr) {
case WN_XSIZE:
case WN_YSIZE:
bit = WNF_HASSIZE;
if(win->flag & WNF_HASCUR) {
win->xsize = win->cur.xmax - win->cur.xmin + 1;
win->ysize = win->cur.ymax - win->cur.ymin + 1;
bit = WNF_HASCUR;
} else if((win->flag & (WNF_HASPREF|WNF_HASSIZE)) == WNF_HASPREF) {
win->xsize = win->pref.xmax - win->pref.xmin + 1;
win->ysize = win->pref.ymax - win->pref.ymin + 1;
bit = WNF_HASPREF;
}
*(int *)valp = attr == WN_XSIZE ? win->xsize : win->ysize;
break;
case WN_CURPOS: *(WnPos *)valp = win->cur; bit=WNF_HASCUR; break;
case WN_PREFPOS: *(WnPos *)valp = win->pref; bit=WNF_HASPREF; break;
case WN_VIEWPORT:
if(!(win->flag & WNF_HASVP)) {
/* Fill in viewport structure with something reasonable, if we can.
*/
win->viewport.xmin = 0; win->viewport.ymin = 0;
if(win->flag & WNF_HASCUR) {
win->viewport.xmax = win->cur.xmax - win->cur.xmin + 1;
win->viewport.ymax = win->cur.ymax - win->cur.ymin + 1;
} else if(win->flag & WNF_HASSIZE) {
win->viewport.xmax = win->xsize;
win->viewport.ymax = win->ysize;
} else {
win->viewport.xmax = win->pref.xmax - win->pref.xmin + 1;
win->viewport.ymax = win->pref.ymax - win->pref.ymin + 1;
}
}
*(WnPos *)valp = win->viewport; bit=WNF_HASVP; break;
case WN_NAME: *(char**)valp = win->win_name; bit=WNF_HASNAME; break;
case WN_ENLARGE: *(int*)valp = GETFLAG(win->flag,WNF_ENLARGE); return 1;
case WN_SHRINK: *(int*)valp = GETFLAG(win->flag,WNF_SHRINK); return 1;
case WN_NOBORDER: *(int*)valp = GETFLAG(win->flag,WNF_NOBORDER); return 1;
case WN_ASPECT: *(float*)valp = win->aspect*win->pixaspect; return 1;
case WN_PIXELASPECT: *(float*)valp = win->pixaspect; return 1;
default: return -1;
}
return win->flag & bit ? 1 : 0;
}
void
WnDelete(WnWindow *win)
{
if(RefDecr((Ref *)win) > 0)
return;
OOGLFree(win);
}
WnWindow *
WnCopy(WnWindow *win)
{
WnWindow *nw = WnCreate(WN_END);
if(win) {
*nw = *win;
RefInit((Ref *)win, WINDOWMAGIC);
nw->handle = NULL;
/*
* This code assumes there are no (other) pointers in a WnWindow,
* i.e. a bitwise copy is enough.
*/
if(nw->win_name) nw->win_name = strdup(nw->win_name);
}
return nw;
}
WnWindow *
WnMerge(register WnWindow *src, register WnWindow *dst)
{
int chg;
int mask = 0;
if(src == NULL) return dst;
if(dst == NULL) return NULL;
chg = src->changed;
dst->flag = (dst->flag & ~chg) | (src->flag & chg);
dst->changed |= chg;
if(chg & WNF_HASPREF) dst->pref = src->pref;
if(chg & WNF_HASCUR) dst->cur = src->cur, dst->aspect = src->aspect;
if(chg & WNF_HASSIZE) dst->xsize = src->xsize, dst->ysize = src->ysize;
if(chg & WNF_HASVP) dst->viewport = src->viewport;
if(chg & src->flag & WNF_HASNAME) WnSetName(dst, src->win_name);
if(chg & WNF_HASPIXASPECT) dst->pixaspect = src->pixaspect;
return dst;
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.