mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

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Diffstat (limited to 'archive/1.vm/build1')

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/* See LICENSE file for copyright and license details. * * dynamic window manager is designed like any other X client as well. It is * driven through handling X events. In contrast to other X clients, a window * manager selects for SubstructureRedirectMask on the root window, to receive * events about window (dis-)appearance. Only one X connection at a time is * allowed to select for this event mask. * * Calls to fetch an X event from the event queue are blocking. Due reading * status text from standard input, a select()-driven main loop has been * implemented which selects for reads on the X connection and STDIN_FILENO to * handle all data smoothly. The event handlers of dwm are organized in an * array which is accessed whenever a new event has been fetched. This allows * event dispatching in O(1) time. * * Each child of the root window is called a client, except windows which have * set the override_redirect flag. Clients are organized in a global * doubly-linked client list, the focus history is remembered through a global * stack list. Each client contains an array of Bools of the same size as the * global tags array to indicate the tags of a client. For each client dwm * creates a small title window, which is resized whenever the (_NET_)WM_NAME * properties are updated or the client is moved/resized. * * Keys and tagging rules are organized as arrays and defined in the config.h * file. These arrays are kept static in event.o and tag.o respectively, * because no other part of dwm needs access to them. The current layout is * represented by the lt pointer. * * To understand everything else, start reading main.c:main(). */ #include "config.h" #include <X11/Xlib.h> /* mask shorthands, used in event.c and client.c */ #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask) enum { BarTop, BarBot, BarOff }; /* bar position */ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ enum { ColBorder, ColFG, ColBG, ColLast }; /* color */ enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */ typedef struct Client Client; struct Client { char name[256]; int x, y, w, h; int rx, ry, rw, rh; /* revert geometry */ int basew, baseh, incw, inch, maxw, maxh, minw, minh; int minax, maxax, minay, maxay; int unmapped; long flags; unsigned int border, oldborder; Bool isbanned, isfixed, ismax, isfloating; Bool *tags; Client *next; Client *prev; Client *snext; Window win; }; typedef struct { int x, y, w, h; unsigned long norm[ColLast]; unsigned long sel[ColLast]; Drawable drawable; GC gc; struct { int ascent; int descent; int height; XFontSet set; XFontStruct *xfont; } font; } DC; /* draw context */ typedef struct { const char *symbol; void (*arrange)(void); } Layout; extern const char *tags[]; /* all tags */ extern char stext[256]; /* status text */ extern int screen, sx, sy, sw, sh; /* screen geometry */ extern int wax, way, wah, waw; /* windowarea geometry */ extern unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */ extern unsigned int ntags, numlockmask; /* number of tags, numlock mask */ extern void (*handler[LASTEvent])(XEvent *); /* event handler */ extern Atom wmatom[WMLast], netatom[NetLast]; extern Bool selscreen, *seltag; /* seltag is array of Bool */ extern Client *clients, *sel, *stack; /* global client list and stack */ extern Cursor cursor[CurLast]; extern DC dc; /* global draw context */ extern Display *dpy; extern Layout *lt; extern Window root, barwin; /* client.c */ void attach(Client *c); /* attaches c to global client list */ void ban(Client *c); /* bans c */ void configure(Client *c); /* send synthetic configure event */ void detach(Client *c); /* detaches c from global client list */ void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */ void killclient(const char *arg); /* kill sel nicely */ void manage(Window w, XWindowAttributes *wa); /* manage new client */ void resize(Client *c, int x, int y, int w, int h, Bool sizehints); /* resize with given coordinates c*/ void togglefloating(const char *arg); /* toggles sel between floating/tiled state */ void unban(Client *c); /* unbans c */ void unmanage(Client *c); /* destroy c */ void updatesizehints(Client *c); /* update the size hint variables of c */ void updatetitle(Client *c); /* update the name of c */ /* draw.c */ void drawstatus(void); /* draw the bar */ void drawtext(const char *text, unsigned long col[ColLast]); /* draw text */ unsigned int textw(const char *text); /* return the width of text in px*/ /* event.c */ void grabkeys(void); /* grab all keys defined in config.h */ /* layout.c */ void floating(void); /* arranges all windows floating */ void focusclient(const char *arg); /* focuses next(1)/previous(-1) visible client */ void incmasterw(const char *arg); /* increments the master width with arg's index value */ void incnmaster(const char *arg); /* increments nmaster with arg's index value */ void initlayouts(void); /* initialize layout array */ Client *nexttiled(Client *c); /* returns tiled successor of c */ void restack(void); /* restores z layers of all clients */ void setlayout(const char *arg); /* sets layout, NULL means next layout */ void togglebar(const char *arg); /* shows/hides the bar */ void togglemax(const char *arg); /* toggles maximization of floating client */ void zoom(const char *arg); /* zooms the focused client to master area, arg is ignored */ /* main.c */ void updatebarpos(void); /* updates the bar position */ void quit(const char *arg); /* quit dwm nicely */ int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */ /* tag.c */ void compileregs(void); /* initialize regexps of rules defined in config.h */ Bool isvisible(Client *c); /* returns True if client is visible */ void settags(Client *c, Client *trans); /* sets tags of c */ void tag(const char *arg); /* tags sel with arg's index */ void toggletag(const char *arg); /* toggles sel tags with arg's index */ void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */ void view(const char *arg); /* views the tag with arg's index */ /* util.c */ void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */ void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */ void spawn(const char *arg); /* forks a new subprocess with arg's cmd */


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