X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=dwm.h;h=e749f2c0e9682c4dc3b2e28b2a3d5074c0ff16d5;hb=6b25d06d7d159bf89d740847fedc876ab0137b6b;hp=c67004ad95f301433f51336f353008941d935de3;hpb=868159fd0a8ce45f1e362bc762260741eabce4ed;p=dwm.git diff --git a/dwm.h b/dwm.h index c67004a..e749f2c 100644 --- a/dwm.h +++ b/dwm.h @@ -1,6 +1,35 @@ /* * (C)opyright MMVI Anselm R. Garbe * See LICENSE file for 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 mode is + * represented by the arrange() function pointer, which wether points to + * dofloat() or dotile(). + * + * To understand everything else, start reading main.c:main(). */ #include "config.h" @@ -48,12 +77,13 @@ struct Client { char name[256]; int proto; int x, y, w, h; + int rx, ry, rw, rh; /* revert geometry */ int tx, ty, tw, th; /* title window geometry */ int basew, baseh, incw, inch, maxw, maxh, minw, minh; int grav; long flags; unsigned int border, weight; - Bool isfloat; + Bool isfloat, ismax; Bool *tags; Client *next; Client *prev; @@ -70,7 +100,7 @@ extern unsigned int ntags, numlockmask; /* number of tags, dynamic lock mask */ extern void (*handler[LASTEvent])(XEvent *); /* event handler */ extern void (*arrange)(Arg *); /* arrange function, indicates mode */ extern Atom wmatom[WMLast], netatom[NetLast]; -extern Bool running, issel, maximized, *seltag; /* seltag is array of Bool */ +extern Bool running, issel, *seltag; /* seltag is array of Bool */ extern Client *clients, *sel, *stack; /* global cleint list and stack */ extern Cursor cursor[CurLast]; extern DC dc; /* global draw context */ @@ -88,20 +118,19 @@ extern void manage(Window w, XWindowAttributes *wa); /* manage new client */ extern void resize(Client *c, Bool sizehints, Corner sticky); /* resize c*/ extern void updatesize(Client *c); /* update the size structs of c */ extern void updatetitle(Client *c); /* update the name of c */ -extern void togglemax(Arg *arg); /* (un)maximize c */ extern void unmanage(Client *c); /* destroy c */ /* draw.c */ -extern void drawall(); /* draw all visible client titles and the bar */ -extern void drawstatus(); /* draw the bar */ +extern void drawall(void); /* draw all visible client titles and the bar */ +extern void drawstatus(void); /* draw the bar */ extern void drawtitle(Client *c); /* draw title of c */ extern unsigned long getcolor(const char *colstr); /* return color of colstr */ extern void setfont(const char *fontstr); /* set the font for DC */ extern unsigned int textw(const char *text); /* return the width of text in px*/ /* event.c */ -extern void grabkeys(); /* grab all keys defined in config.h */ -extern void procevent(); /* process pending X events */ +extern void grabkeys(void); /* grab all keys defined in config.h */ +extern void procevent(void); /* process pending X events */ /* main.c */ extern int getproto(Window w); /* return protocol mask of WMProtocols property of w */ @@ -110,7 +139,7 @@ extern void sendevent(Window w, Atom a, long value); /* send synthetic event to extern int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */ /* tag.c */ -extern void initrregs(); /* initialize regexps of rules defined in config.h */ +extern void initrregs(void); /* initialize regexps of rules defined in config.h */ extern Client *getnext(Client *c); /* returns next visible client */ extern Client *getprev(Client *c); /* returns previous visible client */ extern void settags(Client *c, Client *trans); /* sets tags of c */ @@ -131,7 +160,7 @@ extern void focusnext(Arg *arg); /* focuses next visible client, arg is ignored extern void focusprev(Arg *arg); /* focuses previous visible client, arg is ignored */ extern Bool isvisible(Client *c); /* returns True if client is visible */ extern void resizecol(Arg *arg); /* resizes the master width with arg's index value */ -extern void restack(); /* restores z layers of all clients */ +extern void restack(void); /* restores z layers of all clients */ extern void togglemode(Arg *arg); /* toggles global arrange function (dotile/dofloat) */ extern void toggleview(Arg *arg); /* toggles the tag with arg's index (in)visible */ extern void view(Arg *arg); /* views the tag with arg's index */