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/*
 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */

#include "config.h"
#include "draw.h"
#include "util.h"

#include <X11/Xutil.h>

#define WM_PROTOCOL_DELWIN 1

typedef struct Client Client;
typedef struct Key Key;

/* atoms */
enum { WMProtocols, WMDelete, WMLast };
enum { NetSupported, NetWMName, NetLast };

/* cursor */
enum { CurNormal, CurResize, CurMove, CurInput, CurLast };

/* rects */
enum { RFloat, RGrid, RLast };

struct Client {
	char name[256];
	char tag[256];
	int proto;
	Bool fixedsize;
	Window win;
	Window trans;
	Window title;
	XSizeHints size;
	XRectangle r[RLast];
	Client *next;
	Client *snext;
};

struct Key {
	unsigned long mod;
	KeySym keysym;
	void (*func)(void *aux);
	void *aux;
};

extern Display *dpy;
extern Window root, barwin;
extern Atom wm_atom[WMLast], net_atom[NetLast];
extern Cursor cursor[CurLast];
extern XRectangle rect, barrect;
extern Bool running, sel_screen, grid;
extern void (*handler[LASTEvent]) (XEvent *);

extern int screen;
extern char statustext[1024], tag[256];

extern Brush brush;
extern Client *clients, *stack;

/* bar.c */
extern void draw_bar();

/* cmd.c */
extern void run(void *aux);
extern void quit(void *aux);
extern void kill(void *aux);

/* client.c */
extern void manage(Window w, XWindowAttributes *wa);
extern void unmanage(Client *c);
extern Client *getclient(Window w);
extern void focus(Client *c);
extern void update_name(Client *c);
extern void draw_client(Client *c);
extern void resize(Client *c);

/* event.c */
extern unsigned int discard_events(long even_mask);

/* key.c */
extern void update_keys();
extern void keypress(XEvent *e);

/* mouse.c */
extern void mresize(Client *c);
extern void mmove(Client *c);

/* wm.c */
extern int error_handler(Display *dpy, XErrorEvent *error);
extern void send_message(Window w, Atom a, long value);
extern int win_proto(Window w);
"> c; c = c->next) { c->ismax = False; if(isvisible(c)) { resize(c, True, TopLeft); } else ban(c); } if((sel = getnext(clients))) focus(sel); else XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); restack(); } void dotile(Arg *arg) { int h, i, n, w; Client *c; w = sw - mw; for(n = 0, c = clients; c; c = c->next) if(isvisible(c) && !c->isfloat) n++; if(n > 1) h = (sh - bh) / (n - 1); else h = sh - bh; for(i = 0, c = clients; c; c = c->next) { c->ismax = False; if(isvisible(c)) { if(c->isfloat) { resize(c, True, TopLeft); continue; } if(n == 1) { c->x = sx; c->y = sy + bh; c->w = sw - 2; c->h = sh - 2 - bh; } else if(i == 0) { c->x = sx; c->y = sy + bh; c->w = mw - 2; c->h = sh - 2 - bh; } else if(h > bh) { c->x = sx + mw; c->y = sy + (i - 1) * h + bh; c->w = w - 2; if(i + 1 == n) c->h = sh - c->y - 2; else c->h = h - 2; } else { /* fallback if h < bh */ c->x = sx + mw; c->y = sy + bh; c->w = w - 2; c->h = sh - 2 - bh; } resize(c, False, TopLeft); i++; } else ban(c); } if((sel = getnext(clients))) focus(sel); else XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); restack(); } void focusnext(Arg *arg) { Client *c; if(!sel) return; if(!(c = getnext(sel->next))) c = getnext(clients); if(c) { focus(c); restack(); } } void focusprev(Arg *arg) { Client *c; if(!sel) return; if(!(c = getprev(sel->prev))) { for(c = clients; c && c->next; c = c->next); c = getprev(c); } if(c) { focus(c); restack(); } } Bool isvisible(Client *c) { unsigned int i; for(i = 0; i < ntags; i++) if(c->tags[i] && seltag[i]) return True; return False; } void restack() { static unsigned int nwins = 0; static Window *wins = NULL; unsigned int f, fi, m, mi, n; Client *c; XEvent ev; for(f = 0, m = 0, c = clients; c; c = c->next) if(isvisible(c)) { if(c->isfloat || arrange == dofloat) f++; else m++; } if(!(n = 2 * (f + m))) { drawstatus(); return; } if(nwins < n) { nwins = n; wins = erealloc(wins, nwins * sizeof(Window)); } fi = 0; mi = 2 * f; if(sel->isfloat || arrange == dofloat) { wins[fi++] = sel->twin; wins[fi++] = sel->win; } else { wins[mi++] = sel->twin; wins[mi++] = sel->win; } for(c = clients; c; c = c->next) if(isvisible(c) && c != sel) { if(c->isfloat || arrange == dofloat) { wins[fi++] = c->twin; wins[fi++] = c->win; } else { wins[mi++] = c->twin; wins[mi++] = c->win; } } XRestackWindows(dpy, wins, n); drawall(); XSync(dpy, False); while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); } void togglemode(Arg *arg) { arrange = (arrange == dofloat) ? dotile : dofloat; if(sel) arrange(NULL); else drawstatus(); } void toggleview(Arg *arg) { unsigned int i; seltag[arg->i] = !seltag[arg->i]; for(i = 0; i < ntags && !seltag[i]; i++); if(i == ntags) seltag[arg->i] = True; /* cannot toggle last view */ reorder(); arrange(NULL); } void view(Arg *arg) { unsigned int i; for(i = 0; i < ntags; i++) seltag[i] = False; seltag[arg->i] = True; reorder(); arrange(NULL); } void zoom(Arg *arg) { Client *c = sel; if(!c || (arrange != dotile) || c->isfloat || c->ismax) return; if(c == getnext(clients)) if(!(c = getnext(c->next))) return; detach(c); c->next = clients; clients->prev = c; clients = c; focus(c); arrange(NULL); }