From b6ca7a2aaeb5a68128ba4c1dc28ba4916387e2ae Mon Sep 17 00:00:00 2001 From: Nick Shipp Date: Mon, 22 May 2017 02:33:02 -0400 Subject: Shrinkage --- dwm.c | 365 +----------------------------------------------------------------- 1 file changed, 4 insertions(+), 361 deletions(-) (limited to 'dwm.c') diff --git a/dwm.c b/dwm.c index a5ce993..7c8c216 100644 --- a/dwm.c +++ b/dwm.c @@ -50,17 +50,15 @@ #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \ * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy))) #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags])) -#define LENGTH(X) (sizeof X / sizeof X[0]) +#define LENGTH(X) (sizeof (X) / sizeof (X[0])) #define MOUSEMASK (BUTTONMASK|PointerMotionMask) #define WIDTH(X) ((X)->w + 2 * (X)->bw) #define HEIGHT(X) ((X)->h + 2 * (X)->bw) #define TAGMASK ((1 << LENGTH(tags)) - 1) -#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) #define ColBorder 2 /* enums */ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ -enum { SchemeNorm, SchemeSel }; /* color schemes */ enum { NetSupported, NetWMName, NetWMState, NetWMCheck, NetWMFullscreen, NetActiveWindow, NetWMWindowType, NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ @@ -117,19 +115,15 @@ struct Monitor { float mfact; int nmaster; int num; - int by; /* bar geometry */ int mx, my, mw, mh; /* screen size */ int wx, wy, ww, wh; /* window area */ unsigned int seltags; unsigned int sellt; unsigned int tagset[2]; - int showbar; - int topbar; Client *clients; Client *sel; Client *stack; Monitor *next; - Window barwin; const Layout *lt[2]; }; @@ -149,7 +143,6 @@ static void arrange(Monitor *m); static void arrangemon(Monitor *m); static void attach(Client *c); static void attachstack(Client *c); -static void buttonpress(XEvent *e); static void checkotherwm(void); static void cleanup(void); static void cleanupmon(Monitor *mon); @@ -162,10 +155,7 @@ static void destroynotify(XEvent *e); static void detach(Client *c); static void detachstack(Client *c); static Monitor *dirtomon(int dir); -static void drawbar(Monitor *m); -static void drawbars(void); static void enternotify(XEvent *e); -static void expose(XEvent *e); static void focus(Client *c); static void focusin(XEvent *e); static void focusmon(const Arg *arg); @@ -173,7 +163,6 @@ static void focusstack(const Arg *arg); static int getrootptr(int *x, int *y); static long getstate(Window w); static int gettextprop(Window w, Atom atom, char *text, unsigned int size); -static void grabbuttons(Client *c, int focused); static void grabkeys(void); static void incnmaster(const Arg *arg); static void keypress(XEvent *e); @@ -183,7 +172,6 @@ static void mappingnotify(XEvent *e); static void maprequest(XEvent *e); static void monocle(Monitor *m); static void motionnotify(XEvent *e); -static void movemouse(const Arg *arg); static Client *nexttiled(Client *c); static void pop(Client *); static void propertynotify(XEvent *e); @@ -191,7 +179,6 @@ static void quit(const Arg *arg); static Monitor *recttomon(int x, int y, int w, int h); static void resize(Client *c, int x, int y, int w, int h, int interact); static void resizeclient(Client *c, int x, int y, int w, int h); -static void resizemouse(const Arg *arg); static void restack(Monitor *m); static void run(void); static void scan(void); @@ -210,7 +197,6 @@ static void spawn(const Arg *arg); static void tag(const Arg *arg); static void tagmon(const Arg *arg); static void tile(Monitor *); -static void togglebar(const Arg *arg); static void togglefloating(const Arg *arg); static void toggletag(const Arg *arg); static void toggleview(const Arg *arg); @@ -218,8 +204,6 @@ static void unfocus(Client *c, int setfocus); static void unmanage(Client *c, int destroyed); static void unmapnotify(XEvent *e); static int updategeom(void); -static void updatebarpos(Monitor *m); -static void updatebars(void); static void updateclientlist(void); static void updatenumlockmask(void); static void updatesizehints(Client *c); @@ -240,18 +224,14 @@ static const char broken[] = "broken"; static char stext[256]; static int screen; static int sw, sh; /* X display screen geometry width, height */ -static int bh, blw = 0; /* bar geometry */ -static int lrpad; /* sum of left and right padding for text */ static int (*xerrorxlib)(Display *, XErrorEvent *); static unsigned int numlockmask = 0; static void (*handler[LASTEvent]) (XEvent *) = { - [ButtonPress] = buttonpress, [ClientMessage] = clientmessage, [ConfigureRequest] = configurerequest, [ConfigureNotify] = configurenotify, [DestroyNotify] = destroynotify, [EnterNotify] = enternotify, - [Expose] = expose, [FocusIn] = focusin, [KeyPress] = keypress, [MappingNotify] = mappingnotify, @@ -263,7 +243,6 @@ static void (*handler[LASTEvent]) (XEvent *) = { static Atom wmatom[WMLast], netatom[NetLast]; static int running = 1; static Cur *cursor[CurLast]; -static Scm *scheme; static Display *dpy; static Drw *drw; static Monitor *mons, *selmon; @@ -340,10 +319,6 @@ applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) if (*y + *h + 2 * c->bw <= m->wy) *y = m->wy; } - if (*h < bh) - *h = bh; - if (*w < bh) - *w = bh; if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) { /* see last two sentences in ICCCM 4.1.2.3 */ baseismin = c->basew == c->minw && c->baseh == c->minh; @@ -414,48 +389,6 @@ attachstack(Client *c) c->mon->stack = c; } -void -buttonpress(XEvent *e) -{ - unsigned int i, x, click; - Arg arg = {0}; - Client *c; - Monitor *m; - XButtonPressedEvent *ev = &e->xbutton; - - click = ClkRootWin; - /* focus monitor if necessary */ - if ((m = wintomon(ev->window)) && m != selmon) { - unfocus(selmon->sel, 1); - selmon = m; - focus(NULL); - } - if (ev->window == selmon->barwin) { - i = x = 0; - do - x += TEXTW(tags[i]); - while (ev->x >= x && ++i < LENGTH(tags)); - if (i < LENGTH(tags)) { - click = ClkTagBar; - arg.ui = 1 << i; - } else if (ev->x < x + blw) - click = ClkLtSymbol; - else if (ev->x > selmon->ww - TEXTW(stext)) - click = ClkStatusText; - else - click = ClkWinTitle; - } else if ((c = wintoclient(ev->window))) { - focus(c); - restack(selmon); - XAllowEvents(dpy, ReplayPointer, CurrentTime); - click = ClkClientWin; - } - for (i = 0; i < LENGTH(buttons); i++) - if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button - && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state)) - buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); -} - void checkotherwm(void) { @@ -485,8 +418,6 @@ cleanup(void) cleanupmon(mons); for (i = 0; i < CurLast; i++) drw_cur_free(drw, cursor[i]); - for (i = 0; i < LENGTH(colors); i++) - free(scheme[i]); XDestroyWindow(dpy, wmcheckwin); drw_free(drw); XSync(dpy, False); @@ -505,8 +436,6 @@ cleanupmon(Monitor *mon) for (m = mons; m && m->next != mon; m = m->next); m->next = mon->next; } - XUnmapWindow(dpy, mon->barwin); - XDestroyWindow(dpy, mon->barwin); free(mon); } @@ -562,13 +491,11 @@ configurenotify(XEvent *e) sw = ev->width; sh = ev->height; if (updategeom() || dirty) { - drw_resize(drw, sw, bh); - updatebars(); + drw_resize(drw, sw, 0); for (m = mons; m; m = m->next) { for (c = m->clients; c; c = c->next) if (c->isfullscreen) resizeclient(c, m->mx, m->my, m->mw, m->mh); - XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh); } focus(NULL); arrange(NULL); @@ -637,8 +564,6 @@ createmon(void) m->tagset[0] = m->tagset[1] = 1; m->mfact = mfact; m->nmaster = nmaster; - m->showbar = showbar; - m->topbar = topbar; m->lt[0] = &layouts[0]; m->lt[1] = &layouts[1 % LENGTH(layouts)]; strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); @@ -693,65 +618,6 @@ dirtomon(int dir) return m; } -void -drawbar(Monitor *m) -{ - int x, w, sw = 0; - int boxs = drw->fonts->h / 9; - int boxw = drw->fonts->h / 6 + 2; - unsigned int i, occ = 0, urg = 0; - Client *c; - - /* draw status first so it can be overdrawn by tags later */ - if (m == selmon) { /* status is only drawn on selected monitor */ - drw_setscheme(drw, scheme[SchemeNorm]); - sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ - drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0); - } - - for (c = m->clients; c; c = c->next) { - occ |= c->tags; - if (c->isurgent) - urg |= c->tags; - } - x = 0; - for (i = 0; i < LENGTH(tags); i++) { - w = TEXTW(tags[i]); - drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); - drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i); - if (occ & 1 << i) - drw_rect(drw, x + boxs, boxs, boxw, boxw, - m == selmon && selmon->sel && selmon->sel->tags & 1 << i, - urg & 1 << i); - x += w; - } - w = blw = TEXTW(m->ltsymbol); - drw_setscheme(drw, scheme[SchemeNorm]); - x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); - - if ((w = m->ww - sw - x) > bh) { - if (m->sel) { - drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); - drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); - if (m->sel->isfloating) - drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0); - } else { - drw_setscheme(drw, scheme[SchemeNorm]); - drw_rect(drw, x, 0, w, bh, 1, 1); - } - } - drw_map(drw, m->barwin, 0, 0, m->ww, bh); -} - -void -drawbars(void) -{ - Monitor *m; - - for (m = mons; m; m = m->next) - drawbar(m); -} - void enternotify(XEvent *e) { @@ -771,16 +637,6 @@ enternotify(XEvent *e) focus(c); } -void -expose(XEvent *e) -{ - Monitor *m; - XExposeEvent *ev = &e->xexpose; - - if (ev->count == 0 && (m = wintomon(ev->window))) - drawbar(m); -} - void focus(Client *c) { @@ -795,15 +651,12 @@ focus(Client *c) seturgent(c, 0); detachstack(c); attachstack(c); - grabbuttons(c, 1); - XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel); setfocus(c); } else { XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); XDeleteProperty(dpy, root, netatom[NetActiveWindow]); } selmon->sel = c; - drawbars(); } /* there are some broken focus acquiring clients needing extra handling */ @@ -926,27 +779,6 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size) return 1; } -void -grabbuttons(Client *c, int focused) -{ - updatenumlockmask(); - { - unsigned int i, j; - unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask }; - XUngrabButton(dpy, AnyButton, AnyModifier, c->win); - if (!focused) - XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, - BUTTONMASK, GrabModeSync, GrabModeSync, None, None); - for (i = 0; i < LENGTH(buttons); i++) - if (buttons[i].click == ClkClientWin) - for (j = 0; j < LENGTH(modifiers); j++) - XGrabButton(dpy, buttons[i].button, - buttons[i].mask | modifiers[j], - c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - } -} - void grabkeys(void) { @@ -1047,19 +879,16 @@ manage(Window w, XWindowAttributes *wa) c->y = c->mon->my + c->mon->mh - HEIGHT(c); c->x = MAX(c->x, c->mon->mx); /* only fix client y-offset, if the client center might cover the bar */ - c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx) - && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my); + c->y = MAX(c->y, c->mon->my); c->bw = borderpx; wc.border_width = c->bw; XConfigureWindow(dpy, w, CWBorderWidth, &wc); - XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel); configure(c); /* propagates border_width, if size doesn't change */ updatewindowtype(c); updatesizehints(c); updatewmhints(c); XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask); - grabbuttons(c, 0); if (!c->isfloating) c->isfloating = c->oldstate = trans != None || c->isfixed; if (c->isfloating) @@ -1134,66 +963,6 @@ motionnotify(XEvent *e) mon = m; } -void -movemouse(const Arg *arg) -{ - int x, y, ocx, ocy, nx, ny; - Client *c; - Monitor *m; - XEvent ev; - Time lasttime = 0; - - if (!(c = selmon->sel)) - return; - if (c->isfullscreen) /* no support moving fullscreen windows by mouse */ - return; - restack(selmon); - ocx = c->x; - ocy = c->y; - if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, - None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess) - return; - if (!getrootptr(&x, &y)) - return; - do { - XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); - switch(ev.type) { - case ConfigureRequest: - case Expose: - case MapRequest: - handler[ev.type](&ev); - break; - case MotionNotify: - if ((ev.xmotion.time - lasttime) <= (1000 / 60)) - continue; - lasttime = ev.xmotion.time; - - nx = ocx + (ev.xmotion.x - x); - ny = ocy + (ev.xmotion.y - y); - if (abs(selmon->wx - nx) < snap) - nx = selmon->wx; - else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap) - nx = selmon->wx + selmon->ww - WIDTH(c); - if (abs(selmon->wy - ny) < snap) - ny = selmon->wy; - else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap) - ny = selmon->wy + selmon->wh - HEIGHT(c); - if (!c->isfloating && selmon->lt[selmon->sellt]->arrange - && (abs(nx - c->x) > snap || abs(ny - c->y) > snap)) - togglefloating(NULL); - if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) - resize(c, nx, ny, c->w, c->h, 1); - break; - } - } while (ev.type != ButtonRelease); - XUngrabPointer(dpy, CurrentTime); - if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { - sendmon(c, m); - selmon = m; - focus(NULL); - } -} - Client * nexttiled(Client *c) { @@ -1234,13 +1003,10 @@ propertynotify(XEvent *e) break; case XA_WM_HINTS: updatewmhints(c); - drawbars(); break; } if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { updatetitle(c); - if (c == c->mon->sel) - drawbar(c->mon); } if (ev->atom == netatom[NetWMWindowType]) updatewindowtype(c); @@ -1289,63 +1055,6 @@ resizeclient(Client *c, int x, int y, int w, int h) XSync(dpy, False); } -void -resizemouse(const Arg *arg) -{ - int ocx, ocy, nw, nh; - Client *c; - Monitor *m; - XEvent ev; - Time lasttime = 0; - - if (!(c = selmon->sel)) - return; - if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */ - return; - restack(selmon); - ocx = c->x; - ocy = c->y; - if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, - None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess) - return; - XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); - do { - XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev); - switch(ev.type) { - case ConfigureRequest: - case Expose: - case MapRequest: - handler[ev.type](&ev); - break; - case MotionNotify: - if ((ev.xmotion.time - lasttime) <= (1000 / 60)) - continue; - lasttime = ev.xmotion.time; - - nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1); - nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1); - if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww - && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) - { - if (!c->isfloating && selmon->lt[selmon->sellt]->arrange - && (abs(nw - c->w) > snap || abs(nh - c->h) > snap)) - togglefloating(NULL); - } - if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) - resize(c, c->x, c->y, nw, nh, 1); - break; - } - } while (ev.type != ButtonRelease); - XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1); - XUngrabPointer(dpy, CurrentTime); - while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)); - if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) { - sendmon(c, m); - selmon = m; - focus(NULL); - } -} - void restack(Monitor *m) { @@ -1353,14 +1062,13 @@ restack(Monitor *m) XEvent ev; XWindowChanges wc; - drawbar(m); if (!m->sel) return; if (m->sel->isfloating || !m->lt[m->sellt]->arrange) XRaiseWindow(dpy, m->sel->win); if (m->lt[m->sellt]->arrange) { wc.stack_mode = Below; - wc.sibling = m->barwin; + /* wc.sibling = m->barwin; */ for (c = m->stack; c; c = c->snext) if (!c->isfloating && ISVISIBLE(c)) { XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc); @@ -1509,8 +1217,6 @@ setlayout(const Arg *arg) strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol); if (selmon->sel) arrange(selmon); - else - drawbar(selmon); } /* arg > 1.0 will set mfact absolutely */ @@ -1531,7 +1237,6 @@ setmfact(const Arg *arg) void setup(void) { - int i; XSetWindowAttributes wa; Atom utf8string; @@ -1544,10 +1249,6 @@ setup(void) sh = DisplayHeight(dpy, screen); root = RootWindow(dpy, screen); drw = drw_create(dpy, screen, root, sw, sh); - if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) - die("no fonts could be loaded."); - lrpad = drw->fonts->h; - bh = drw->fonts->h + 2; updategeom(); /* init atoms */ utf8string = XInternAtom(dpy, "UTF8_STRING", False); @@ -1568,13 +1269,6 @@ setup(void) cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); cursor[CurResize] = drw_cur_create(drw, XC_sizing); cursor[CurMove] = drw_cur_create(drw, XC_fleur); - /* init appearance */ - scheme = ecalloc(LENGTH(colors), sizeof(Scm)); - for (i = 0; i < LENGTH(colors); i++) - scheme[i] = drw_scm_create(drw, colors[i], 3); - /* init bars */ - updatebars(); - updatestatus(); /* supporting window for NetWMCheck */ wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0); XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, @@ -1698,15 +1392,6 @@ tile(Monitor *m) } } -void -togglebar(const Arg *arg) -{ - selmon->showbar = !selmon->showbar; - updatebarpos(selmon); - XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh); - arrange(selmon); -} - void togglefloating(const Arg *arg) { @@ -1753,8 +1438,6 @@ unfocus(Client *c, int setfocus) { if (!c) return; - grabbuttons(c, 0); - XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel); if (setfocus) { XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); XDeleteProperty(dpy, root, netatom[NetActiveWindow]); @@ -1800,39 +1483,6 @@ unmapnotify(XEvent *e) } } -void -updatebars(void) -{ - Monitor *m; - XSetWindowAttributes wa = { - .override_redirect = True, - .background_pixmap = ParentRelative, - .event_mask = ButtonPressMask|ExposureMask - }; - for (m = mons; m; m = m->next) { - if (m->barwin) - continue; - m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen), - CopyFromParent, DefaultVisual(dpy, screen), - CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa); - XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor); - XMapRaised(dpy, m->barwin); - } -} - -void -updatebarpos(Monitor *m) -{ - m->wy = m->my; - m->wh = m->mh; - if (m->showbar) { - m->wh -= bh; - m->by = m->topbar ? m->wy : m->wy + m->wh; - m->wy = m->topbar ? m->wy + bh : m->wy; - } else - m->by = -bh; -} - void updateclientlist() { @@ -1887,7 +1537,6 @@ updategeom(void) m->my = m->wy = unique[i].y_org; m->mw = m->ww = unique[i].width; m->mh = m->wh = unique[i].height; - updatebarpos(m); } } else { /* less monitors available nn < n */ for (i = nn; i < n; i++) { @@ -1915,7 +1564,6 @@ updategeom(void) dirty = 1; mons->mw = mons->ww = sw; mons->mh = mons->wh = sh; - updatebarpos(mons); } } if (dirty) { @@ -1999,7 +1647,6 @@ updatestatus(void) { if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) strcpy(stext, "dwm-"VERSION); - drawbar(selmon); } void @@ -2063,13 +1710,9 @@ wintomon(Window w) { int x, y; Client *c; - Monitor *m; if (w == root && getrootptr(&x, &y)) return recttomon(x, y, 1, 1); - for (m = mons; m; m = m->next) - if (w == m->barwin) - return m; if ((c = wintoclient(w))) return c->mon; return selmon; -- cgit v1.2.3-54-g00ecf