Mercurial > aewl
annotate dwm.h @ 461:9d23330a5268
removed a bunch of lines through making function signatures more consistent with my style ( { does not belong to a new line, if function args are single-lined)
| author | Anselm R. Garbe <arg@10kloc.org> |
|---|---|
| date | Tue, 12 Sep 2006 10:57:28 +0200 |
| parents | ab4b08d49d24 |
| children | 210a99f18657 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> | |
| 3 * See LICENSE file for license details. | |
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4 * |
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5 * dynamic window manager is designed like any other X client as well. It is |
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6 * driven through handling X events. In contrast to other X clients, a window |
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7 * manager like dwm selects for SubstructureRedirectMask on the root window, to |
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8 * receive events about window appearance and disappearance. Only one X |
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9 * connection at a time is allowed to select for this event mask. |
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10 * |
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11 * Calls to fetch an X event from the X event queue connection are blocking. |
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12 * Due reading status text from standard input, a select-driven main loop has |
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13 * been implemented which selects for reads on the X connection and |
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14 * STDIN_FILENO to handle all data smoothly and without busy-loop quirks. The |
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15 * event handlers of dwm are organized in an array which is accessed whenever a |
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16 * new event has been fetched. This allows event dispatching in O(1) time. |
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17 * |
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18 * Each child of the root window is called a client, except windows which have |
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19 * set the override_redirect flag. Clients are organized in a global |
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20 * doubly-linked client list, the focus history is remembered through a global |
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21 * stack list. Each client contains an array of Bools of the same size as the |
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22 * global tags array to indicate the tags of a client. For each client dwm |
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23 * creates a small title window which is resized whenever the WM_NAME or |
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24 * _NET_WM_NAME properties are updated or the client is resized. |
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25 * |
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26 * Keys and tagging rules are organized as arrays and defined in the config.h |
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27 * file. These arrays are kept static in event.o and tag.o respectively, |
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28 * because no other part of dwm needs access to them. The current mode is |
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29 * represented by the arrange function pointer which wether points to dofloat |
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30 * or dotile. |
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31 * |
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32 * To understand everything else, start with reading main.c:main(). |
| 0 | 33 */ |
| 34 | |
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35 #include "config.h" |
| 32 | 36 #include <X11/Xlib.h> |
| 37 | |
| 143 | 38 /* mask shorthands, used in event.c and client.c */ |
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39 #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask) |
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40 #define MOUSEMASK (BUTTONMASK | PointerMotionMask) |
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41 #define PROTODELWIN 1 |
| 143 | 42 |
| 452 | 43 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ |
| 44 enum { WMProtocols, WMDelete, WMLast }; /* default atoms */ | |
| 45 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ | |
| 46 enum { ColFG, ColBG, ColLast }; /* color */ | |
| 47 | |
| 48 typedef enum { | |
| 49 TopLeft, TopRight, BotLeft, BotRight | |
| 50 } Corner; /* window corners */ | |
| 51 | |
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52 typedef union { |
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53 const char *cmd; |
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54 int i; |
| 452 | 55 } Arg; /* argument type */ |
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56 |
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57 typedef struct { |
| 32 | 58 int ascent; |
| 59 int descent; | |
| 60 int height; | |
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61 XFontSet set; |
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62 XFontStruct *xfont; |
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63 } Fnt; |
| 32 | 64 |
| 452 | 65 typedef struct { |
| 32 | 66 int x, y, w, h; |
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67 unsigned long norm[ColLast]; |
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68 unsigned long sel[ColLast]; |
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69 unsigned long status[ColLast]; |
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70 Drawable drawable; |
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71 Fnt font; |
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72 GC gc; |
| 452 | 73 } DC; /* draw context */ |
| 32 | 74 |
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75 typedef struct Client Client; |
| 0 | 76 struct Client { |
| 31 | 77 char name[256]; |
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78 int proto; |
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79 int x, y, w, h; |
| 453 | 80 int tx, ty, tw, th; /* title window geometry */ |
| 20 | 81 int basew, baseh, incw, inch, maxw, maxh, minw, minh; |
| 29 | 82 int grav; |
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83 long flags; |
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84 unsigned int border, weight; |
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85 Bool isfloat; |
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86 Bool *tags; |
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87 Client *next; |
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88 Client *prev; |
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89 Client *snext; |
| 0 | 90 Window win; |
| 342 | 91 Window twin; |
| 0 | 92 }; |
| 93 | |
| 452 | 94 extern const char *tags[]; /* all tags */ |
| 95 extern char stext[1024]; /* status text */ | |
| 96 extern int bx, by, bw, bh, bmw; /* bar geometry, bar mode label width */ | |
| 97 extern int mw, screen, sx, sy, sw, sh; /* screen geometry, master width */ | |
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98 extern unsigned int ntags, numlockmask; /* number of tags, dynamic lock mask */ |
| 452 | 99 extern void (*handler[LASTEvent])(XEvent *); /* event handler */ |
| 100 extern void (*arrange)(Arg *); /* arrange function, indicates mode */ | |
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101 extern Atom wmatom[WMLast], netatom[NetLast]; |
| 452 | 102 extern Bool running, issel, maximized, *seltag; /* seltag is array of Bool */ |
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103 extern Client *clients, *sel, *stack; /* global cleint list and stack */ |
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104 extern Cursor cursor[CurLast]; |
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105 extern DC dc; /* global draw context */ |
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106 extern Display *dpy; |
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107 extern Window root, barwin; |
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108 |
| 5 | 109 /* client.c */ |
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110 extern void ban(Client *c); /* ban c from screen */ |
| 452 | 111 extern void focus(Client *c); /* focus c, c may be NULL */ |
| 112 extern Client *getclient(Window w); /* return client of w */ | |
| 113 extern Client *getctitle(Window w); /* return client of title window */ | |
| 114 extern void gravitate(Client *c, Bool invert); /* gravitate c */ | |
| 115 extern void killclient(Arg *arg); /* kill c nicely */ | |
| 116 extern void manage(Window w, XWindowAttributes *wa); /* manage new client */ | |
| 117 extern void resize(Client *c, Bool sizehints, Corner sticky); /* resize c*/ | |
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118 extern void updatesize(Client *c); /* update the size structs of c */ |
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119 extern void updatetitle(Client *c); /* update the name of c */ |
| 452 | 120 extern void togglemax(Arg *arg); /* (un)maximize c */ |
| 121 extern void unmanage(Client *c); /* destroy c */ | |
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122 |
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123 /* draw.c */ |
| 452 | 124 extern void drawall(); /* draw all visible client titles and the bar */ |
| 125 extern void drawstatus(); /* draw the bar */ | |
| 126 extern void drawtitle(Client *c); /* draw title of c */ | |
| 127 extern unsigned long getcolor(const char *colstr); /* return color of colstr */ | |
| 128 extern void setfont(const char *fontstr); /* set the font for DC */ | |
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129 extern unsigned int textw(const char *text); /* return the width of text in px*/ |
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130 |
| 75 | 131 /* event.c */ |
| 452 | 132 extern void grabkeys(); /* grab all keys defined in config.h */ |
| 133 extern void procevent(); /* process pending X events */ | |
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134 |
| 43 | 135 /* main.c */ |
| 452 | 136 extern int getproto(Window w); /* return protocol mask of WMProtocols property of w */ |
| 137 extern void quit(Arg *arg); /* quit dwm nicely */ | |
| 138 extern void sendevent(Window w, Atom a, long value); /* send synthetic event to w */ | |
| 139 extern int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */ | |
| 43 | 140 |
| 75 | 141 /* tag.c */ |
| 452 | 142 extern void initrregs(); /* initialize regexps of rules defined in config.h */ |
| 143 extern Client *getnext(Client *c); /* returns next visible client */ | |
| 144 extern Client *getprev(Client *c); /* returns previous visible client */ | |
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145 extern void settags(Client *c, Client *trans); /* sets tags of c */ |
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146 extern void tag(Arg *arg); /* tags c with arg's index */ |
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147 extern void toggletag(Arg *arg); /* toggles c tags with arg's index */ |
| 73 | 148 |
| 32 | 149 /* util.c */ |
| 452 | 150 extern void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */ |
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151 extern void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */ |
| 452 | 152 extern void *erealloc(void *ptr, unsigned int size); /* reallocates memory, exits on error */ |
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153 extern void spawn(Arg *arg); /* forks a new subprocess with to arg's cmd */ |
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154 |
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155 /* view.c */ |
| 452 | 156 extern void detach(Client *c); /* detaches c from global client list */ |
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157 extern void dofloat(Arg *arg); /* arranges all windows floating, arg is ignored */ |
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158 extern void dotile(Arg *arg); /* arranges all windows, arg is ignored */ |
| 452 | 159 extern void focusnext(Arg *arg); /* focuses next visible client, arg is ignored */ |
| 160 extern void focusprev(Arg *arg); /* focuses previous visible client, arg is ignored */ | |
| 161 extern Bool isvisible(Client *c); /* returns True if client is visible */ | |
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162 extern void resizecol(Arg *arg); /* resizes the master width with arg's index value */ |
| 452 | 163 extern void restack(); /* restores z layers of all clients */ |
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164 extern void togglemode(Arg *arg); /* toggles global arrange function (dotile/dofloat) */ |
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d11d739ad9df
some other simplifications
Anselm R. Garbe <arg@10kloc.org>
parents:
454
diff
changeset
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165 extern void toggleview(Arg *arg); /* toggles the tag with arg's index (in)visible */ |
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d11d739ad9df
some other simplifications
Anselm R. Garbe <arg@10kloc.org>
parents:
454
diff
changeset
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166 extern void view(Arg *arg); /* views the tag with arg's index */ |
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454
ffb462fb7903
small change to comments, renamed two set* functions in client.c into update*
Anselm R. Garbe <arg@10kloc.org>
parents:
453
diff
changeset
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167 extern void viewall(Arg *arg); /* views all tags, arg is ignored */ |
| 452 | 168 extern void zoom(Arg *arg); /* zooms the focused client to master column, arg is ignored */ |