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/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <string.h>

/* static */

static void
drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
	int x;
	XGCValues gcv;
	XRectangle r = { dc.x, dc.y, dc.w, dc.h };

	gcv.foreground = col[ColFG];
	XChangeGC(dpy, dc.gc, GCForeground, &gcv);
	x = (dc.font.ascent + dc.font.descent + 2) / 4;
	r.x = dc.x + 1;
	r.y = dc.y + 1;
	if(filled) {
		r.width = r.height = x + 1;
		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	}
	else if(empty) {
		r.width = r.height = x;
		XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	}
}

static Bool
isoccupied(unsigned int t) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->tags[t])
			return True;
	return False;
}

static unsigned int
textnw(const char *text, unsigned int len) {
	XRectangle r;

	if(dc.font.set) {
		XmbTextExtents(dc.font.set, text, len, NULL, &r);
		return r.width;
	}
	return XTextWidth(dc.font.xfont, text, len);
}

/* extern */

void
drawstatus(void) {
	int i, x;

	dc.x = dc.y = 0;
	for(i = 0; i < ntags; i++) {
		dc.w = textw(tags[i]);
		if(seltags[i]) {
			drawtext(tags[i], dc.sel);
			drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
		}
		else {
			drawtext(tags[i], dc.norm);
			drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
		}
		dc.x += dc.w;
	}
	dc.w = blw;
	drawtext(getsymbol(), dc.norm);
	x = dc.x + dc.w;
	dc.w = textw(stext);
	dc.x = sw - dc.w;
	if(dc.x < x) {
		dc.x = x;
		dc.w = sw - x;
	}
	drawtext(stext, dc.norm);
	if((dc.w = dc.x - x) > bh) {
		dc.x = x;
		if(sel) {
			drawtext(sel->name, dc.sel);
			drawsquare(sel->ismax, sel->isfloating, dc.sel);
		}
		else
			drawtext(NULL, dc.norm);
	}
	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
	XSync(dpy, False);
}

void
drawtext(const char *text, unsigned long col[ColLast]) {
	int x, y, w, h;
	static char buf[256];
	unsigned int len, olen;
	XRectangle r = { dc.x, dc.y, dc.w, dc.h };

	XSetForeground(dpy, dc.gc, col[ColBG]);
	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	if(!text)
		return;
	w = 0;
	olen = len = strlen(text);
	if(len >= sizeof buf)
		len = sizeof buf - 1;
	memcpy(buf, text, len);
	buf[len] = 0;
	h = dc.font.ascent + dc.font.descent;
	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
	x = dc.x + (h / 2);
	/* shorten text if necessary */
	while(len && (w = textnw(buf, len)) > dc.w - h)
		buf[--len] = 0;
	if(len < olen) {
		if(len > 1)
			buf[len - 1] = '.';
		if(len > 2)
			buf[len - 2] = '.';
		if(len > 3)
			buf[len - 3] = '.';
	}
	if(w > dc.w)
		return; /* too long */
	XSetForeground(dpy, dc.gc, col[ColFG]);
	if(dc.font.set)
		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
	else
		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}

unsigned int
textw(const char *text) {
	return textnw(text, strlen(text)) + dc.font.height;
}
lass="w"> MODKEY) toggletag(&a); else toggleview(&a); } return; } } if(ev->x < x + bmw) { if(ev->button == Button1) togglemode(NULL); } } else if((c = getclient(ev->window))) { focus(c); if(maximized || CLEANMASK(ev->state) != MODKEY) return; if(ev->button == Button1 && (arrange == dofloat || c->isfloat)) { restack(c); movemouse(c); } else if(ev->button == Button2) zoom(NULL); else if(ev->button == Button3 && (arrange == dofloat || c->isfloat)) { restack(c); resizemouse(c); } } } static void synconfig(Client *c, int x, int y, int w, int h, unsigned int border) { XEvent synev; synev.type = ConfigureNotify; synev.xconfigure.display = dpy; synev.xconfigure.event = c->win; synev.xconfigure.window = c->win; synev.xconfigure.x = x; synev.xconfigure.y = y; synev.xconfigure.width = w; synev.xconfigure.height = h; synev.xconfigure.border_width = border; synev.xconfigure.above = None; XSendEvent(dpy, c->win, True, NoEventMask, &synev); } static void configurerequest(XEvent *e) { unsigned long newmask; Client *c; XConfigureRequestEvent *ev = &e->xconfigurerequest; XWindowChanges wc; if((c = getclient(ev->window))) { if((c == sel) && !c->isfloat && (arrange != dofloat) && maximized) { synconfig(c, sx, sy + bh, sw - 2, sh - 2 - bh, ev->border_width); XSync(dpy, False); return; } gravitate(c, True); if(ev->value_mask & CWX) c->x = ev->x; if(ev->value_mask & CWY) c->y = ev->y; if(ev->value_mask & CWWidth) c->w = ev->width; if(ev->value_mask & CWHeight) c->h = ev->height; if(ev->value_mask & CWBorderWidth) c->border = ev->border_width; gravitate(c, False); wc.x = c->x; wc.y = c->y; wc.width = c->w; wc.height = c->h; newmask = ev->value_mask & (~(CWSibling | CWStackMode | CWBorderWidth)); if(newmask) XConfigureWindow(dpy, c->win, newmask, &wc); else synconfig(c, c->x, c->y, c->w, c->h, c->border); XSync(dpy, False); if(c->isfloat) resize(c, False, TopLeft); else arrange(NULL); } else { wc.x = ev->x; wc.y = ev->y; wc.width = ev->width; wc.height = ev->height; wc.border_width = ev->border_width; wc.sibling = ev->above; wc.stack_mode = ev->detail; XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); XSync(dpy, False); } } static void destroynotify(XEvent *e) { Client *c; XDestroyWindowEvent *ev = &e->xdestroywindow; if((c = getclient(ev->window))) unmanage(c); } static void enternotify(XEvent *e) { Client *c; XCrossingEvent *ev = &e->xcrossing; if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) return; if((c = getclient(ev->window)) || (c = getctitle(ev->window))) focus(c); else if(ev->window == root) { issel = True; XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); drawall(); } } static void expose(XEvent *e) { Client *c; XExposeEvent *ev = &e->xexpose; if(ev->count == 0) { if(barwin == ev->window) drawstatus(); else if((c = getctitle(ev->window))) drawtitle(c); } } static void keypress(XEvent *e) { static unsigned int len = sizeof(key) / sizeof(key[0]); unsigned int i; KeySym keysym; XKeyEvent *ev = &e->xkey; keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); for(i = 0; i < len; i++) { if(keysym == key[i].keysym && CLEANMASK(key[i].mod) == CLEANMASK(ev->state)) { if(key[i].func) key[i].func(&key[i].arg); return; } } } static void leavenotify(XEvent *e) { XCrossingEvent *ev = &e->xcrossing; if((ev->window == root) && !ev->same_screen) { issel = False; drawall(); } } static void mappingnotify(XEvent *e) { XMappingEvent *ev = &e->xmapping; XRefreshKeyboardMapping(ev); if(ev->request == MappingKeyboard) grabkeys(); } static void maprequest(XEvent *e) { static XWindowAttributes wa; XMapRequestEvent *ev = &e->xmaprequest; if(!XGetWindowAttributes(dpy, ev->window, &wa)) return; if(wa.override_redirect) { XSelectInput(dpy, ev->window, (StructureNotifyMask | PropertyChangeMask)); return; } if(!getclient(ev->window)) manage(ev->window, &wa); } static void propertynotify(XEvent *e) { Client *c; Window trans; XPropertyEvent *ev = &e->xproperty; if(ev->state == PropertyDelete) return; /* ignore */ if((c = getclient(ev->window))) { if(ev->atom == wmatom[WMProtocols]) { c->proto = getproto(c->win); return; } switch (ev->atom) { default: break; case XA_WM_TRANSIENT_FOR: XGetTransientForHint(dpy, c->win, &trans); if(!c->isfloat && (c->isfloat = (trans != 0))) arrange(NULL); break; case XA_WM_NORMAL_HINTS: setsize(c); break; } if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { settitle(c); drawtitle(c); } } } static void unmapnotify(XEvent *e) { Client *c; XUnmapEvent *ev = &e->xunmap; if((c = getclient(ev->window))) unmanage(c); } /* extern */ void (*handler[LASTEvent]) (XEvent *) = { [ButtonPress] = buttonpress, [ConfigureRequest] = configurerequest, [DestroyNotify] = destroynotify, [EnterNotify] = enternotify, [LeaveNotify] = leavenotify, [Expose] = expose, [KeyPress] = keypress, [MappingNotify] = mappingnotify, [MapRequest] = maprequest, [PropertyNotify] = propertynotify, [UnmapNotify] = unmapnotify }; void grabkeys() { static unsigned int len = sizeof(key) / sizeof(key[0]); unsigned int i; KeyCode code; XUngrabKey(dpy, AnyKey, AnyModifier, root); for(i = 0; i < len; i++) { code = XKeysymToKeycode(dpy, key[i].keysym); XGrabKey(dpy, code, key[i].mod, root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, key[i].mod | LockMask, root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, key[i].mod | numlockmask, root, True, GrabModeAsync, GrabModeAsync); XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True, GrabModeAsync, GrabModeAsync); } } void procevent() { XEvent ev; while(XPending(dpy)) { XNextEvent(dpy, &ev); if(handler[ev.type]) (handler[ev.type])(&ev); /* call handler */ } }