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reddsik
335
requestchoice.c
Normal file
335
requestchoice.c
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "drawinfo.h"
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#include "libami.h"
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#ifdef AMIGAOS
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#include <pragmas/xlib_pragmas.h>
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extern struct Library *XLibBase;
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#endif
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#define BUT_BUTSPACE (2*(2+5))
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#define BUT_INTSPACE 12
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#define BUT_EXTSPACE 4
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#define BUT_VSPACE 6
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#define TXT_HSPACE 48
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#define TXT_TOPSPACE 4
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#define TXT_MIDSPACE 3
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#define TXT_BOTSPACE 4
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struct choice {
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struct choice *next;
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const char *text;
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int l, w;
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Window win;
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} *firstchoice=NULL, *lastchoice=NULL;
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struct line {
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struct line *next;
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const char *text;
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int l, w, h;
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} *firstline=NULL, *lastline=NULL;
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Display *dpy;
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Window root, mainwin, textwin;
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char *progname;
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GC gc;
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Pixmap stipple;
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int totw=0, maxw=0, toth=0, nchoices=0;
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int depressed=0;
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struct choice *selected=NULL;
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struct DrawInfo dri;
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struct RDArgs *ra=NULL;
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void selection(int n)
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{
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printf("%d\n", n);
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XDestroyWindow(dpy, mainwin);
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XCloseDisplay(dpy);
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FreeArgs(ra);
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exit(0);
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}
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void *myalloc(size_t s)
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{
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void *p=calloc(s,1);
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if(p)
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return p;
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fprintf(stderr, "%s: out of memory!\n", progname);
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FreeArgs(ra);
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exit(1);
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}
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void addchoice(const char *txt)
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{
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struct choice *c=myalloc(sizeof(struct choice));
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if(lastchoice)
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lastchoice->next=c;
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else
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firstchoice=c;
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lastchoice=c;
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c->l=strlen(c->text=txt);
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#ifdef USE_FONTSETS
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totw+=(c->w=XmbTextEscapement(dri.dri_FontSet, c->text, c->l))+BUT_BUTSPACE;
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#else
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totw+=(c->w=XTextWidth(dri.dri_Font, c->text, c->l))+BUT_BUTSPACE;
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#endif
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nchoices++;
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}
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void addline(const char *txt)
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{
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struct line *l=myalloc(sizeof(struct line));
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if(lastline)
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lastline->next=l;
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else
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firstline=l;
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lastline=l;
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l->l=strlen(l->text=txt);
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#ifdef USE_FONTSETS
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l->w=XmbTextEscapement(dri.dri_FontSet, l->text, l->l);
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#else
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l->w=XTextWidth(dri.dri_Font, l->text, l->l);
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#endif
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toth+=l->h=dri.dri_Ascent+dri.dri_Descent;
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if(l->w>maxw)
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maxw=l->w;
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}
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void refresh_text()
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{
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int w=totw-BUT_EXTSPACE-BUT_EXTSPACE;
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int h=toth-TXT_TOPSPACE-TXT_MIDSPACE-TXT_BOTSPACE-BUT_VSPACE-
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(dri.dri_Ascent+dri.dri_Descent);
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int x=(totw-maxw+TXT_HSPACE)>>1;
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int y=((dri.dri_Ascent+dri.dri_Descent)>>1)+dri.dri_Ascent;
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struct line *l;
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XSetForeground(dpy, gc, dri.dri_Pens[SHADOWPEN]);
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XDrawLine(dpy, textwin, gc, 0, 0, w-2, 0);
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XDrawLine(dpy, textwin, gc, 0, 0, 0, h-2);
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XSetForeground(dpy, gc, dri.dri_Pens[SHINEPEN]);
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XDrawLine(dpy, textwin, gc, 0, h-1, w-1, h-1);
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XDrawLine(dpy, textwin, gc, w-1, 0, w-1, h-1);
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XSetForeground(dpy, gc, dri.dri_Pens[TEXTPEN]);
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for(l=firstline; l; l=l->next) {
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#ifdef USE_FONTSETS
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XmbDrawString(dpy, textwin, dri.dri_FontSet, gc, x, y, l->text, l->l);
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#else
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XDrawString(dpy, textwin, gc, x, y, l->text, l->l);
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#endif
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y+=dri.dri_Ascent+dri.dri_Descent;
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}
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}
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void refresh_choice(struct choice *c)
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{
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int w=c->w+BUT_BUTSPACE;
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int h=dri.dri_Ascent+dri.dri_Descent+BUT_VSPACE;
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XSetForeground(dpy, gc, dri.dri_Pens[TEXTPEN]);
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#ifdef USE_FONTSETS
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XmbDrawString(dpy, c->win, dri.dri_FontSet, gc, BUT_BUTSPACE/2,
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dri.dri_Ascent+BUT_VSPACE/2, c->text, c->l);
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#else
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XDrawString(dpy, c->win, gc, BUT_BUTSPACE/2,
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dri.dri_Ascent+BUT_VSPACE/2, c->text, c->l);
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#endif
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XSetForeground(dpy, gc, dri.dri_Pens[(c==selected && depressed)?
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SHADOWPEN:SHINEPEN]);
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XDrawLine(dpy, c->win, gc, 0, 0, w-2, 0);
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XDrawLine(dpy, c->win, gc, 0, 0, 0, h-2);
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XSetForeground(dpy, gc, dri.dri_Pens[(c==selected && depressed)?
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SHINEPEN:SHADOWPEN]);
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XDrawLine(dpy, c->win, gc, 1, h-1, w-1, h-1);
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XDrawLine(dpy, c->win, gc, w-1, 1, w-1, h-1);
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XSetForeground(dpy, gc, dri.dri_Pens[BACKGROUNDPEN]);
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XDrawPoint(dpy, c->win, gc, w-1, 0);
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XDrawPoint(dpy, c->win, gc, 0, h-1);
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}
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void split(char *str, const char *delim, void (*func)(const char *))
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{
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char *p;
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if((p=strtok(str, delim)))
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do {
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(*func)(p);
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} while((p=strtok(NULL, delim)));
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}
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struct choice *getchoice(Window w)
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{
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struct choice *c;
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for(c=firstchoice; c; c=c->next)
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if(w == c->win)
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return c;
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return NULL;
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}
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void toggle(struct choice *c)
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{
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XSetWindowBackground(dpy, c->win, dri.dri_Pens[(depressed&&c==selected)?
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FILLPEN:BACKGROUNDPEN]);
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XClearWindow(dpy, c->win);
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refresh_choice(c);
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}
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void abortchoice()
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{
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if(depressed) {
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depressed=0;
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toggle(selected);
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}
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selected=NULL;
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}
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void endchoice()
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{
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struct choice *c=selected, *c2=firstchoice;
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int n;
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abortchoice();
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if(c==lastchoice)
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selection(0);
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for(n=1; c2; n++, c2=c2->next)
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if(c2==c)
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selection(n);
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selection(0);
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}
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int main(int argc, char *argv[])
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{
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XWindowAttributes attr;
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static XSizeHints size_hints;
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static XTextProperty txtprop1, txtprop2;
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int x, y, extra=0, n=0;
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struct choice *c;
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Argtype array[3], *atp;
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progname=argv[0];
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initargs(argc, argv);
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if(!(ra=ReadArgs((STRPTR)"TITLE/A,BODY/A,GADGETS/M", (LONG *)array, NULL))) {
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PrintFault(IoErr(), (UBYTE *)progname);
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exit(1);
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}
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if(!(dpy = XOpenDisplay(NULL))) {
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fprintf(stderr, "%s: cannot connect to X server %s\n", progname,
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XDisplayName(NULL));
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FreeArgs(ra);
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exit(1);
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}
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root = RootWindow(dpy, DefaultScreen(dpy));
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XGetWindowAttributes(dpy, root, &attr);
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init_dri(&dri, dpy, root, attr.colormap, False);
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split(array[1].ptr, "\n", addline);
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if((atp=array[2].ptr) != NULL)
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for(; atp->ptr; atp++)
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split(atp->ptr, "|\n", addchoice);
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totw+=BUT_EXTSPACE+BUT_EXTSPACE+BUT_INTSPACE*(nchoices-1);
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toth+=2*(dri.dri_Ascent+dri.dri_Descent)+TXT_TOPSPACE+
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TXT_MIDSPACE+TXT_BOTSPACE+BUT_VSPACE;
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maxw+=TXT_HSPACE+BUT_EXTSPACE+BUT_EXTSPACE;
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if(maxw>totw) {
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extra=maxw-totw;
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totw=maxw;
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}
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mainwin=XCreateSimpleWindow(dpy, root, 0, 0, totw, toth, 1,
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dri.dri_Pens[SHADOWPEN],
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dri.dri_Pens[BACKGROUNDPEN]);
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gc=XCreateGC(dpy, mainwin, 0, NULL);
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XSetBackground(dpy, gc, dri.dri_Pens[BACKGROUNDPEN]);
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#ifndef USE_FONTSETS
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XSetFont(dpy, gc, dri.dri_Font->fid);
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#endif
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stipple=XCreatePixmap(dpy, mainwin, 2, 2, attr.depth);
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XSetForeground(dpy, gc, dri.dri_Pens[BACKGROUNDPEN]);
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XFillRectangle(dpy, stipple, gc, 0, 0, 2, 2);
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XSetForeground(dpy, gc, dri.dri_Pens[SHINEPEN]);
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XDrawPoint(dpy, stipple, gc, 0, 1);
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XDrawPoint(dpy, stipple, gc, 1, 0);
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XSetWindowBackgroundPixmap(dpy, mainwin, stipple);
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textwin=XCreateSimpleWindow(dpy, mainwin, BUT_EXTSPACE, TXT_TOPSPACE, totw-
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BUT_EXTSPACE-BUT_EXTSPACE, toth-TXT_TOPSPACE-
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TXT_MIDSPACE-TXT_BOTSPACE-BUT_VSPACE-
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(dri.dri_Ascent+dri.dri_Descent),
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0, dri.dri_Pens[SHADOWPEN],
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dri.dri_Pens[BACKGROUNDPEN]);
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XSelectInput(dpy, textwin, ExposureMask);
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x=BUT_EXTSPACE;
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y=toth-TXT_BOTSPACE-(dri.dri_Ascent+dri.dri_Descent)-BUT_VSPACE;
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for(c=firstchoice; c; c=c->next) {
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c->win=XCreateSimpleWindow(dpy, mainwin,
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x+(nchoices==1? (extra>>1):
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n++*extra/(nchoices-1)),
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y, c->w+BUT_BUTSPACE,
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dri.dri_Ascent+dri.dri_Descent+
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BUT_VSPACE, 0,
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dri.dri_Pens[SHADOWPEN],
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dri.dri_Pens[BACKGROUNDPEN]);
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XSelectInput(dpy, c->win, ExposureMask|ButtonPressMask|ButtonReleaseMask|
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EnterWindowMask|LeaveWindowMask);
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x+=c->w+BUT_BUTSPACE+BUT_INTSPACE;
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}
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size_hints.flags = PResizeInc;
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txtprop1.value=(unsigned char *)array[0].ptr;
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txtprop2.value=(unsigned char *)"RequestChoice";
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txtprop2.encoding=txtprop1.encoding=XA_STRING;
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txtprop2.format=txtprop1.format=8;
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txtprop1.nitems=strlen((char *)txtprop1.value);
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txtprop2.nitems=strlen((char *)txtprop2.value);
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XSetWMProperties(dpy, mainwin, &txtprop1, &txtprop2, argv, argc,
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&size_hints, NULL, NULL);
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XMapSubwindows(dpy, mainwin);
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XMapRaised(dpy, mainwin);
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for(;;) {
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XEvent event;
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XNextEvent(dpy, &event);
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switch(event.type) {
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case Expose:
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if(!event.xexpose.count)
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if(event.xexpose.window == textwin)
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refresh_text();
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else if((c=getchoice(event.xexpose.window)))
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refresh_choice(c);
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break;
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case LeaveNotify:
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if(depressed && event.xcrossing.window==selected->win) {
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depressed=0;
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toggle(selected);
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}
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break;
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case EnterNotify:
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if((!depressed) && selected && event.xcrossing.window==selected->win) {
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depressed=1;
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toggle(selected);
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}
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break;
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case ButtonPress:
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if(event.xbutton.button==Button1 &&
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(c=getchoice(event.xbutton.window))) {
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abortchoice();
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depressed=1;
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toggle(selected=c);
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}
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break;
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case ButtonRelease:
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if(event.xbutton.button==Button1 && selected)
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if(depressed)
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endchoice();
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else
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abortchoice();
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break;
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}
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}
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FreeArgs(ra);
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}
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