134 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			134 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| static int th = 0; /* tab bar geometry */
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| 
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| void
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| drawtabs(void)
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| {
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| 	Monitor *m;
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| 
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| 	for (m = mons; m; m = m->next)
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| 		drawtab(m);
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| }
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| 
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| static int
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| cmpint(const void *p1, const void *p2)
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| {
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|   /* The actual arguments to this function are "pointers to
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|      pointers to char", but strcmp(3) arguments are "pointers
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|      to char", hence the following cast plus dereference */
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|   return *((int*) p1) > * (int*) p2;
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| }
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| 
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| void
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| drawtab(Monitor *m)
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| {
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| 	Client *c;
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| 	int i;
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| 	int itag = -1;
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| 	char view_info[50];
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| 	int view_info_w = 0;
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| 	int sorted_label_widths[MAXTABS];
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| 	int tot_width;
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| 	int maxsize = bh;
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| 	int x = 0;
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| 	int w = 0;
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| 
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| 	// view_info: indicate the tag which is displayed in the view
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| 	for (i = 0; i < NUMTAGS; ++i) {
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| 		if ((selmon->tagset[selmon->seltags] >> i) & 1) {
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| 			if (itag >=0) { // more than one tag selected
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| 				itag = -1;
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| 				break;
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| 			}
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| 			itag = i;
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| 		}
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| 	}
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| 
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| 	if (0 <= itag  && itag < NUMTAGS) {
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| 		snprintf(view_info, sizeof view_info, "[%s]", tagicon(m, itag));
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| 	} else {
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| 		strncpy(view_info, "[...]", sizeof view_info);
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| 	}
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| 	view_info[sizeof(view_info) - 1 ] = 0;
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| 	view_info_w = TEXTW(view_info);
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| 	tot_width = view_info_w;
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| 
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| 	/* Calculates number of labels and their width */
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| 	m->ntabs = 0;
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| 	for (c = m->clients; c; c = c->next) {
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| 		if (!ISVISIBLE(c) || HIDDEN(c))
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| 			continue;
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| 		m->tab_widths[m->ntabs] = TEXTW(c->name);
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| 		tot_width += m->tab_widths[m->ntabs];
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| 		++m->ntabs;
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| 		if (m->ntabs >= MAXTABS)
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| 			break;
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| 	}
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| 
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| 	if (tot_width > m->ww) { // not enough space to display the labels, they need to be truncated
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| 		memcpy(sorted_label_widths, m->tab_widths, sizeof(int) * m->ntabs);
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| 		qsort(sorted_label_widths, m->ntabs, sizeof(int), cmpint);
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| 		tot_width = view_info_w;
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| 		for (i = 0; i < m->ntabs; ++i) {
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| 			if (tot_width + (m->ntabs - i) * sorted_label_widths[i] > m->ww)
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| 				break;
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| 			tot_width += sorted_label_widths[i];
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| 		}
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| 		maxsize = (m->ww - tot_width) / (m->ntabs - i);
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| 	} else {
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| 		maxsize = m->ww;
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| 	}
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| 	i = 0;
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| 	for (c = m->clients; c; c = c->next) {
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| 		if (!ISVISIBLE(c) || HIDDEN(c))
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| 			continue;
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| 		if (i >= m->ntabs)
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| 			break;
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| 		if (m->tab_widths[i] > maxsize)
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| 			m->tab_widths[i] = maxsize;
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| 		w = m->tab_widths[i];
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| 		drw_setscheme(drw, scheme[(c == m->sel) ? SchemeSel : SchemeNorm]);
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| 		drw_text(drw, x, 0, w, th, 0, c->name, 0, False);
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| 		x += w;
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| 		++i;
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| 	}
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| 
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| 	drw_setscheme(drw, scheme[SchemeNorm]);
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| 
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| 	/* cleans interspace between window names and current viewed tag label */
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| 	w = m->ww - view_info_w - x;
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| 	drw_text(drw, x, 0, w, th, 0, "", 0, False);
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| 
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| 	/* view info */
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| 	x += w;
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| 	w = view_info_w;
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| 	drw_text(drw, x, 0, w, th, 0, view_info, 0, False);
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| 
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| 	drw_map(drw, m->tabwin, 0, 0, m->ww, th);
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| }
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| 
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| void
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| focuswin(const Arg* arg)
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| {
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| 	int iwin = arg->i;
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| 	Client* c = NULL;
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| 	for (c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next) {
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| 		if (ISVISIBLE(c) && !HIDDEN(c))
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| 			--iwin;
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| 	};
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| 	if (c) {
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| 		focus(c);
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| 		restack(selmon);
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| 	}
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| }
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| 
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| void
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| tabmode(const Arg *arg)
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| {
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| 	if (arg && arg->i >= 0)
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| 		selmon->showtab = arg->ui % showtab_nmodes;
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| 	else
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| 		selmon->showtab = (selmon->showtab + 1 ) % showtab_nmodes;
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| 	arrange(selmon);
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| }
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| 
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