dwm-meillo

annotate dwm.h @ 741:7c5d5b1e49c9

fixed copyright notice in Makefile
author Anselm R. Garbe <arg@suckless.org>
date Thu, 08 Feb 2007 14:09:52 +0100
parents 29c9b557ed95
children 08b89915c109
rev   line source
arg@644 1 /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
garbeam@0 2 * See LICENSE file for license details.
arg@457 3 *
arg@457 4 * dynamic window manager is designed like any other X client as well. It is
arg@457 5 * driven through handling X events. In contrast to other X clients, a window
arg@468 6 * manager selects for SubstructureRedirectMask on the root window, to receive
arg@468 7 * events about window (dis-)appearance. Only one X connection at a time is
arg@468 8 * allowed to select for this event mask.
arg@457 9 *
arg@468 10 * Calls to fetch an X event from the event queue are blocking. Due reading
arg@469 11 * status text from standard input, a select()-driven main loop has been
arg@468 12 * implemented which selects for reads on the X connection and STDIN_FILENO to
arg@468 13 * handle all data smoothly. The event handlers of dwm are organized in an
arg@468 14 * array which is accessed whenever a new event has been fetched. This allows
arg@468 15 * event dispatching in O(1) time.
arg@457 16 *
arg@460 17 * Each child of the root window is called a client, except windows which have
arg@460 18 * set the override_redirect flag. Clients are organized in a global
arg@460 19 * doubly-linked client list, the focus history is remembered through a global
arg@460 20 * stack list. Each client contains an array of Bools of the same size as the
arg@460 21 * global tags array to indicate the tags of a client. For each client dwm
arg@468 22 * creates a small title window, which is resized whenever the (_NET_)WM_NAME
arg@468 23 * properties are updated or the client is moved/resized.
arg@457 24 *
arg@459 25 * Keys and tagging rules are organized as arrays and defined in the config.h
arg@459 26 * file. These arrays are kept static in event.o and tag.o respectively,
arg@459 27 * because no other part of dwm needs access to them. The current mode is
arg@469 28 * represented by the arrange() function pointer, which wether points to
arg@469 29 * dofloat() or dotile().
arg@457 30 *
arg@468 31 * To understand everything else, start reading main.c:main().
garbeam@0 32 */
garbeam@0 33
arg@166 34 #include "config.h"
garbeam@32 35 #include <X11/Xlib.h>
garbeam@32 36
arg@143 37 /* mask shorthands, used in event.c and client.c */
arg@150 38 #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
arg@143 39
arg@452 40 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
arg@725 41 enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */
arg@452 42 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
arg@689 43 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
arg@452 44
arg@333 45 typedef union {
arg@189 46 const char *cmd;
garbeam@49 47 int i;
arg@452 48 } Arg; /* argument type */
arg@99 49
arg@333 50 typedef struct {
garbeam@32 51 int ascent;
garbeam@32 52 int descent;
garbeam@32 53 int height;
garbeam@84 54 XFontSet set;
garbeam@84 55 XFontStruct *xfont;
arg@333 56 } Fnt;
garbeam@32 57
arg@452 58 typedef struct {
garbeam@32 59 int x, y, w, h;
arg@353 60 unsigned long norm[ColLast];
arg@353 61 unsigned long sel[ColLast];
garbeam@84 62 Drawable drawable;
garbeam@84 63 Fnt font;
garbeam@84 64 GC gc;
arg@452 65 } DC; /* draw context */
garbeam@32 66
arg@333 67 typedef struct Client Client;
garbeam@0 68 struct Client {
garbeam@31 69 char name[256];
arg@115 70 int x, y, w, h;
arg@480 71 int rx, ry, rw, rh; /* revert geometry */
garbeam@20 72 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
arg@731 73 int minax, minay, maxax, maxay;
arg@164 74 long flags;
arg@573 75 unsigned int border;
arg@734 76 Bool isfixed, isfloat, ismax;
arg@178 77 Bool *tags;
garbeam@84 78 Client *next;
arg@127 79 Client *prev;
arg@446 80 Client *snext;
garbeam@0 81 Window win;
garbeam@0 82 };
garbeam@0 83
arg@452 84 extern const char *tags[]; /* all tags */
arg@688 85 extern char stext[256]; /* status text */
arg@697 86 extern int bh, bmw; /* bar height, bar mode label width */
arg@524 87 extern int screen, sx, sy, sw, sh; /* screen geometry */
arg@565 88 extern int wax, way, wah, waw; /* windowarea geometry */
arg@650 89 extern unsigned int master, nmaster; /* master percent, number of master clients */
arg@650 90 extern unsigned int ntags, numlockmask; /* number of tags, dynamic lock mask */
arg@452 91 extern void (*handler[LASTEvent])(XEvent *); /* event handler */
arg@533 92 extern void (*arrange)(void); /* arrange function, indicates mode */
garbeam@84 93 extern Atom wmatom[WMLast], netatom[NetLast];
arg@716 94 extern Bool running, selscreen, *seltag; /* seltag is array of Bool */
arg@488 95 extern Client *clients, *sel, *stack; /* global client list and stack */
garbeam@84 96 extern Cursor cursor[CurLast];
arg@454 97 extern DC dc; /* global draw context */
garbeam@84 98 extern Display *dpy;
garbeam@84 99 extern Window root, barwin;
garbeam@3 100
garbeam@5 101 /* client.c */
arg@491 102 extern void configure(Client *c); /* send synthetic configure event */
arg@452 103 extern void focus(Client *c); /* focus c, c may be NULL */
arg@452 104 extern Client *getclient(Window w); /* return client of w */
arg@734 105 extern Bool isprotodel(Client *c); /* returns True if c->win supports wmatom[WMDelete] */
arg@452 106 extern void killclient(Arg *arg); /* kill c nicely */
arg@452 107 extern void manage(Window w, XWindowAttributes *wa); /* manage new client */
arg@708 108 extern void resize(Client *c, Bool sizehints); /* resize c*/
arg@640 109 extern void updatesizehints(Client *c); /* update the size hint variables of c */
arg@454 110 extern void updatetitle(Client *c); /* update the name of c */
arg@452 111 extern void unmanage(Client *c); /* destroy c */
garbeam@13 112
garbeam@33 113 /* draw.c */
arg@487 114 extern void drawstatus(void); /* draw the bar */
arg@452 115 extern unsigned long getcolor(const char *colstr); /* return color of colstr */
arg@452 116 extern void setfont(const char *fontstr); /* set the font for DC */
arg@456 117 extern unsigned int textw(const char *text); /* return the width of text in px*/
garbeam@33 118
garbeam@75 119 /* event.c */
arg@487 120 extern void grabkeys(void); /* grab all keys defined in config.h */
arg@487 121 extern void procevent(void); /* process pending X events */
garbeam@18 122
garbeam@43 123 /* main.c */
arg@452 124 extern void quit(Arg *arg); /* quit dwm nicely */
arg@452 125 extern void sendevent(Window w, Atom a, long value); /* send synthetic event to w */
arg@452 126 extern int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
garbeam@43 127
garbeam@75 128 /* tag.c */
arg@487 129 extern void initrregs(void); /* initialize regexps of rules defined in config.h */
arg@452 130 extern Client *getnext(Client *c); /* returns next visible client */
arg@452 131 extern Client *getprev(Client *c); /* returns previous visible client */
arg@454 132 extern void settags(Client *c, Client *trans); /* sets tags of c */
arg@456 133 extern void tag(Arg *arg); /* tags c with arg's index */
arg@456 134 extern void toggletag(Arg *arg); /* toggles c tags with arg's index */
garbeam@73 135
garbeam@32 136 /* util.c */
arg@452 137 extern void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
arg@456 138 extern void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
arg@456 139 extern void spawn(Arg *arg); /* forks a new subprocess with to arg's cmd */
arg@327 140
arg@327 141 /* view.c */
arg@452 142 extern void detach(Client *c); /* detaches c from global client list */
arg@533 143 extern void dofloat(void); /* arranges all windows floating */
arg@533 144 extern void dotile(void); /* arranges all windows tiled */
arg@452 145 extern void focusnext(Arg *arg); /* focuses next visible client, arg is ignored */
arg@452 146 extern void focusprev(Arg *arg); /* focuses previous visible client, arg is ignored */
arg@650 147 extern void incnmaster(Arg *arg); /* increments nmaster with arg's index value */
arg@452 148 extern Bool isvisible(Client *c); /* returns True if client is visible */
arg@559 149 extern void resizemaster(Arg *arg); /* resizes the master percent with arg's index value */
arg@487 150 extern void restack(void); /* restores z layers of all clients */
arg@585 151 extern void togglefloat(Arg *arg); /* toggles focusesd client between floating/non-floating state */
arg@456 152 extern void togglemode(Arg *arg); /* toggles global arrange function (dotile/dofloat) */
arg@456 153 extern void toggleview(Arg *arg); /* toggles the tag with arg's index (in)visible */
arg@456 154 extern void view(Arg *arg); /* views the tag with arg's index */
arg@508 155 extern void zoom(Arg *arg); /* zooms the focused client to master area, arg is ignored */