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xmenu.c
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xmenu.c
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#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <locale.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <X11/XKBlib.h>
#include <X11/Xft/Xft.h>
#include <X11/extensions/Xinerama.h>
#include <Imlib2.h>
/* macros */
#define MAXPATHS 128 /* maximal number of paths to look for icons */
#define ICONPATH "ICONPATH" /* environment variable name */
#define CLASS "XMenu"
#define LEN(x) (sizeof (x) / sizeof (x[0]))
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
#define GETNUM(n, s) { \
unsigned long __TMP__; \
if ((__TMP__ = strtoul((s), NULL, 10)) < INT_MAX) \
(n) = __TMP__; \
}
/* Actions for the main loop */
enum {
ACTION_NOP = 0,
ACTION_CLEAR = 1<<0, /* clear text */
ACTION_SELECT = 1<<1, /* select item */
ACTION_MAP = 1<<2, /* remap menu windows */
ACTION_DRAW = 1<<3, /* redraw menu windows */
ACTION_WARP = 1<<4, /* warp the pointer */
};
/* enum for keyboard menu navigation */
enum { ITEMPREV, ITEMNEXT, ITEMFIRST, ITEMLAST };
/* enum for text alignment */
enum {LeftAlignment, CenterAlignment, RightAlignment};
/* color enum */
enum {ColorFG, ColorBG, ColorLast};
/* EWMH atoms */
enum {NetWMName, NetWMWindowType, NetWMWindowTypePopupMenu, NetLast};
/* configuration structure */
struct Config {
/* the values below are set by config.h */
const char *font;
const char *background_color;
const char *foreground_color;
const char *selbackground_color;
const char *selforeground_color;
const char *separator_color;
const char *border_color;
int width_pixels;
int height_pixels;
int border_pixels;
int max_items;
int separator_pixels;
int gap_pixels;
int triangle_width;
int triangle_height;
int iconpadding;
int horzpadding;
int alignment;
/* the values below are set by options */
int monitor;
int posx, posy; /* rootmenu position */
/* the value below is computed by xmenu */
int iconsize;
};
/* draw context structure */
struct DC {
XftColor normal[ColorLast];
XftColor selected[ColorLast];
XftColor border;
XftColor separator;
GC gc;
FcPattern *pattern;
XftFont **fonts;
size_t nfonts;
};
/* menu item structure */
struct Item {
char *label; /* string to be drawed on menu */
char *output; /* string to be outputed when item is clicked */
char *file; /* filename of the icon */
int y; /* item y position relative to menu */
int h; /* item height */
int textw; /* text width */
struct Item *prev; /* previous item */
struct Item *next; /* next item */
struct Menu *submenu; /* submenu spawned by clicking on item */
Drawable sel, unsel; /* pixmap for selected and unselected item */
Imlib_Image icon;
};
/* monitor geometry structure */
struct Monitor {
int x, y, w, h; /* monitor geometry */
};
/* menu structure */
struct Menu {
struct Menu *parent; /* parent menu */
struct Item *caller; /* item that spawned the menu */
struct Item *list; /* list of items contained by the menu */
struct Item *first; /* first item displayed on the menu */
struct Item *selected; /* item currently selected in the menu */
int x, y, w, h; /* menu geometry */
int hasicon; /* whether the menu has item with icons */
int drawn; /* whether the menu was already drawn */
int maxtextw; /* maximum text width */
int level; /* menu level relative to root */
int overflow; /* whether the menu is higher than the monitor */
Window win; /* menu window to map on the screen */
XIC xic; /* input context */
};
/* X stuff */
static Display *dpy;
static Visual *visual;
static Window rootwin;
static Colormap colormap;
static XrmDatabase xdb;
static XClassHint classh;
static char *xrm;
static struct DC dc;
static Atom utf8string;
static Atom wmdelete;
static Atom netatom[NetLast];
static int screen;
static int depth;
static XIM xim;
/* flags */
static int iflag = 0; /* whether to disable icons */
static int rflag = 0; /* whether to disable right-click */
static int mflag = 0; /* whether the user specified a monitor with -p */
static int pflag = 0; /* whether the user specified a position with -p */
static int wflag = 0; /* whether to let the window manager control XMenu */
static int rootmodeflag = 0; /* wheter to run in root mode */
static int passclickflag = 0; /* whether to pass click to root window */
static int firsttime = 1; /* set to 0 after first run */
/* arguments */
static unsigned int button = 0; /* button to trigger pmenu in root mode */
static unsigned int modifier = 0; /* modifier to trigger pmenu */
/* icons paths */
static char *iconstring = NULL; /* string read from getenv */
static char *iconpaths[MAXPATHS]; /* paths to icon directories */
static int niconpaths = 0; /* number of paths to icon directories */
/* include config variable */
#include "config.h"
/* show usage */
static void
usage(void)
{
(void)fprintf(stderr, "usage: xmenu [-irw] [-p position] [(-x|-X) [modifier-]button] [title]\n");
exit(1);
}
/* maximum int */
static int
max(int x, int y)
{
return x > y ? x : y;
}
/* minimum int */
static int
min(int x, int y)
{
return x < y ? x : y;
}
/* call malloc checking for error */
static void *
emalloc(size_t size)
{
void *p;
if ((p = malloc(size)) == NULL)
err(1, "malloc");
return p;
}
/* call strdup checking for error */
static char *
estrdup(const char *s)
{
char *t;
if ((t = strdup(s)) == NULL)
err(1, "strdup");
return t;
}
/* parse position string from -p, put results on config.posx, config.posy, and config.monitor */
static void
parseposition(char *optarg)
{
long n;
char *s = optarg;
char *endp;
n = strtol(s, &endp, 10);
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != 'x')
goto error;
config.posx = n;
s = endp+1;
n = strtol(s, &endp, 10);
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s)
goto error;
config.posy = n;
if (*endp == ':') {
s = endp+1;
mflag = 1;
if (strncasecmp(s, "CUR", 3) == 0) {
config.monitor = -1;
endp = s+3;
} else {
n = strtol(s, &endp, 10);
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != '\0')
goto error;
config.monitor = n;
}
} else if (*endp != '\0') {
goto error;
}
return;
error:
errx(1, "improper position: %s", optarg);
}
/* get configuration from X resources */
static void
getresources(void)
{
char *type;
XrmValue xval;
if (xrm == NULL || xdb == NULL)
return;
if (XrmGetResource(xdb, "xmenu.borderWidth", "*", &type, &xval) == True)
GETNUM(config.border_pixels, xval.addr)
if (XrmGetResource(xdb, "xmenu.separatorWidth", "*", &type, &xval) == True)
GETNUM(config.separator_pixels, xval.addr)
if (XrmGetResource(xdb, "xmenu.height", "*", &type, &xval) == True)
GETNUM(config.height_pixels, xval.addr)
if (XrmGetResource(xdb, "xmenu.width", "*", &type, &xval) == True)
GETNUM(config.width_pixels, xval.addr)
if (XrmGetResource(xdb, "xmenu.gap", "*", &type, &xval) == True)
GETNUM(config.gap_pixels, xval.addr)
if (XrmGetResource(xdb, "xmenu.maxItems", "*", &type, &xval) == True)
GETNUM(config.max_items, xval.addr)
if (XrmGetResource(xdb, "xmenu.background", "*", &type, &xval) == True)
config.background_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.foreground", "*", &type, &xval) == True)
config.foreground_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.selbackground", "*", &type, &xval) == True)
config.selbackground_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.selforeground", "*", &type, &xval) == True)
config.selforeground_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.separator", "*", &type, &xval) == True)
config.separator_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.border", "*", &type, &xval) == True)
config.border_color = xval.addr;
if (XrmGetResource(xdb, "xmenu.font", "*", &type, &xval) == True)
config.font = xval.addr;
if (XrmGetResource(xdb, "xmenu.alignment", "*", &type, &xval) == True) {
if (strcasecmp(xval.addr, "center") == 0)
config.alignment = CenterAlignment;
else if (strcasecmp(xval.addr, "left") == 0)
config.alignment = LeftAlignment;
else if (strcasecmp(xval.addr, "right") == 0)
config.alignment = RightAlignment;
}
}
/* set button global variable */
static void
setbutton(char *s)
{
size_t len;
if ((len = strlen(s)) < 1)
return;
switch (s[len-1]) {
case '1': button = Button1; break;
case '2': button = Button2; break;
case '3': button = Button3; break;
default: button = atoi(&s[len-1]); break;
}
}
/* set modifier global variable */
static void
setmodifier(char *s)
{
size_t len;
if ((len = strlen(s)) < 1)
return;
switch (s[len-1]) {
case '1': modifier = Mod1Mask; break;
case '2': modifier = Mod2Mask; break;
case '3': modifier = Mod3Mask; break;
case '4': modifier = Mod4Mask; break;
case '5': modifier = Mod5Mask; break;
default:
if (strcasecmp(s, "Alt") == 0) {
modifier = Mod1Mask;
} else if (strcasecmp(s, "Super") == 0) {
modifier = Mod4Mask;
}
break;
}
}
/* parse icon path string */
static void
parseiconpaths(char *s)
{
if (s == NULL)
return;
free(iconstring);
iconstring = estrdup(s);
niconpaths = 0;
for (s = strtok(iconstring, ":"); s != NULL; s = strtok(NULL, ":")) {
if (niconpaths < MAXPATHS) {
iconpaths[niconpaths++] = s;
}
}
}
/* get configuration from command-line options */
static void
getoptions(int argc, char *argv[])
{
int ch;
char *s, *t;
classh.res_class = CLASS;
classh.res_name = argv[0];
if ((s = strrchr(argv[0], '/')) != NULL)
classh.res_name = s + 1;
parseiconpaths(getenv(ICONPATH));
while ((ch = getopt(argc, argv, "ip:rwx:X:")) != -1) {
switch (ch) {
case 'i':
iflag = 1;
break;
case 'p':
pflag = 1;
parseposition(optarg);
break;
case 'r':
rflag = 1;
break;
case 'w':
wflag = 1;
break;
case 'X':
passclickflag = 1;
/* PASSTHROUGH */
case 'x':
rootmodeflag = 1;
s = optarg;
setbutton(s);
if ((t = strchr(s, '-')) == NULL)
return;
*t = '\0';
setmodifier(s);
break;
default:
usage();
break;
}
}
if (rootmodeflag)
wflag = 0;
argc -= optind;
argv += optind;
if (argc != 0)
usage();
return;
}
/* parse font string */
static void
parsefonts(const char *s)
{
const char *p;
char buf[1024];
size_t nfont = 0;
dc.nfonts = 1;
for (p = s; *p; p++)
if (*p == ',')
dc.nfonts++;
if ((dc.fonts = calloc(dc.nfonts, sizeof *dc.fonts)) == NULL)
err(1, "calloc");
p = s;
while (*p != '\0') {
size_t i;
i = 0;
while (isspace(*p))
p++;
while (i < sizeof buf && *p != '\0' && *p != ',')
buf[i++] = *p++;
if (i >= sizeof buf)
errx(1, "font name too long");
if (*p == ',')
p++;
buf[i] = '\0';
if (nfont == 0)
if ((dc.pattern = FcNameParse((FcChar8 *)buf)) == NULL)
errx(1, "the first font in the cache must be loaded from a font string");
if ((dc.fonts[nfont++] = XftFontOpenName(dpy, screen, buf)) == NULL)
errx(1, "could not load font");
}
}
/* get color from color string */
static void
ealloccolor(const char *s, XftColor *color)
{
if(!XftColorAllocName(dpy, visual, colormap, s, color))
errx(1, "could not allocate color: %s", s);
}
/* query monitor information and cursor position */
static void
getmonitor(struct Monitor *mon)
{
XineramaScreenInfo *info = NULL;
Window dw; /* dummy variable */
int di; /* dummy variable */
unsigned du; /* dummy variable */
int cursx, cursy; /* cursor position */
int nmons;
int i;
XQueryPointer(dpy, rootwin, &dw, &dw, &cursx, &cursy, &di, &di, &du);
mon->x = mon->y = 0;
mon->w = DisplayWidth(dpy, screen);
mon->h = DisplayHeight(dpy, screen);
if ((info = XineramaQueryScreens(dpy, &nmons)) != NULL) {
int selmon = 0;
if (!mflag || config.monitor < 0 || config.monitor >= nmons) {
for (i = 0; i < nmons; i++) {
if (BETWEEN(cursx, info[i].x_org, info[i].x_org + info[i].width) &&
BETWEEN(cursy, info[i].y_org, info[i].y_org + info[i].height)) {
selmon = i;
break;
}
}
} else {
selmon = config.monitor;
}
mon->x = info[selmon].x_org;
mon->y = info[selmon].y_org;
mon->w = info[selmon].width;
mon->h = info[selmon].height;
XFree(info);
}
if (!pflag) {
config.posx = cursx;
config.posy = cursy;
} else if (mflag) {
config.posx += mon->x;
config.posy += mon->y;
}
}
/* init draw context */
static void
initdc(void)
{
/* get color pixels */
ealloccolor(config.background_color, &dc.normal[ColorBG]);
ealloccolor(config.foreground_color, &dc.normal[ColorFG]);
ealloccolor(config.selbackground_color, &dc.selected[ColorBG]);
ealloccolor(config.selforeground_color, &dc.selected[ColorFG]);
ealloccolor(config.separator_color, &dc.separator);
ealloccolor(config.border_color, &dc.border);
/* parse fonts */
parsefonts(config.font);
/* create common GC */
dc.gc = XCreateGC(dpy, rootwin, 0, NULL);
}
/* calculate icon size */
static void
initiconsize(void)
{
config.iconsize = config.height_pixels - config.iconpadding * 2;
}
/* intern atoms */
static void
initatoms(void)
{
utf8string = XInternAtom(dpy, "UTF8_STRING", False);
wmdelete = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
netatom[NetWMWindowTypePopupMenu] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_POPUP_MENU", False);
}
/* allocate an item */
static struct Item *
allocitem(const char *label, const char *output, char *file)
{
struct Item *item;
item = emalloc(sizeof *item);
if (label == NULL) {
item->label = NULL;
item->output = NULL;
} else {
item->label = estrdup(label);
if (label == output) {
item->output = item->label;
} else {
item->output = estrdup(output);
}
}
if (file == NULL) {
item->file = NULL;
} else {
item->file = estrdup(file);
}
item->y = 0;
item->h = 0;
item->next = NULL;
item->submenu = NULL;
item->icon = NULL;
return item;
}
/* allocate a menu and create its window */
static struct Menu *
allocmenu(struct Menu *parent, struct Item *list, int level)
{
XSetWindowAttributes swa;
struct Menu *menu;
menu = emalloc(sizeof *menu);
*menu = (struct Menu){
.parent = parent,
.list = list,
.level = level,
.first = NULL,
};
swa.override_redirect = (wflag) ? False : True;
swa.background_pixel = dc.normal[ColorBG].pixel;
swa.border_pixel = dc.border.pixel;
swa.save_under = True; /* pop-up windows should save_under*/
swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask
| PointerMotionMask | LeaveWindowMask;
if (wflag)
swa.event_mask |= StructureNotifyMask;
menu->win = XCreateWindow(dpy, rootwin, 0, 0, 1, 1, config.border_pixels,
CopyFromParent, CopyFromParent, CopyFromParent,
CWOverrideRedirect | CWBackPixel |
CWBorderPixel | CWEventMask | CWSaveUnder,
&swa);
menu->xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, menu->win, XNFocusWindow, menu->win, NULL);
if (menu->xic == NULL)
errx(1, "XCreateIC: could not obtain input method");
return menu;
}
/* build the menu tree */
static struct Menu *
buildmenutree(int level, const char *label, const char *output, char *file)
{
static struct Menu *prevmenu = NULL; /* menu the previous item was added to */
static struct Menu *rootmenu = NULL; /* menu to be returned */
struct Item *curritem = NULL; /* item currently being read */
struct Item *item; /* dummy item for loops */
struct Menu *menu; /* dummy menu for loops */
int i;
/* create the item */
curritem = allocitem(label, output, file);
/* put the item in the menu tree */
if (prevmenu == NULL) { /* there is no menu yet */
menu = allocmenu(NULL, curritem, level);
rootmenu = menu;
prevmenu = menu;
curritem->prev = NULL;
} else if (level < prevmenu->level) { /* item is continuation of a parent menu */
/* go up the menu tree until find the menu this item continues */
for (menu = prevmenu, i = level;
menu != NULL && i != prevmenu->level;
menu = menu->parent, i++)
;
if (menu == NULL)
errx(1, "improper indentation detected");
/* find last item in the new menu */
for (item = menu->list; item->next != NULL; item = item->next)
;
prevmenu = menu;
item->next = curritem;
curritem->prev = item;
} else if (level == prevmenu->level) { /* item is a continuation of current menu */
/* find last item in the previous menu */
for (item = prevmenu->list; item->next != NULL; item = item->next)
;
item->next = curritem;
curritem->prev = item;
} else if (level > prevmenu->level) { /* item begins a new menu */
menu = allocmenu(prevmenu, curritem, level);
/* find last item in the previous menu */
for (item = prevmenu->list; item->next != NULL; item = item->next)
;
/* a separator is no valid root for a submenu */
if (!item->label)
errx(1, "a separator is no valid root for a submenu");
prevmenu = menu;
menu->caller = item;
item->submenu = menu;
curritem->prev = NULL;
}
if (curritem->file)
prevmenu->hasicon = 1;
return rootmenu;
}
/* create menus and items from the stdin */
static struct Menu *
parsestdin(void)
{
struct Menu *rootmenu;
char *s, buf[BUFSIZ];
char *file, *label, *output;
int level = 0;
rootmenu = NULL;
while (fgets(buf, BUFSIZ, stdin) != NULL) {
/* get the indentation level */
level = strspn(buf, "\t");
/* get the label */
s = level + buf;
label = strtok(s, "\t\n");
/* get the filename */
file = NULL;
if (label != NULL && strncmp(label, "IMG:", 4) == 0) {
file = label + 4;
label = strtok(NULL, "\t\n");
}
/* get the output */
output = strtok(NULL, "\n");
if (output == NULL) {
output = label;
} else {
while (*output == '\t')
output++;
}
rootmenu = buildmenutree(level, label, output, file);
}
return rootmenu;
}
/* get next utf8 char from s return its codepoint and set next_ret to pointer to end of character */
static FcChar32
getnextutf8char(const char *s, const char **next_ret)
{
static const unsigned char utfbyte[] = {0x80, 0x00, 0xC0, 0xE0, 0xF0};
static const unsigned char utfmask[] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static const FcChar32 utfmin[] = {0, 0x00, 0x80, 0x800, 0x10000};
static const FcChar32 utfmax[] = {0, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
/* 0xFFFD is the replacement character, used to represent unknown characters */
static const FcChar32 unknown = 0xFFFD;
FcChar32 ucode; /* FcChar32 type holds 32 bits */
size_t usize = 0; /* n' of bytes of the utf8 character */
size_t i;
*next_ret = s+1;
/* get code of first byte of utf8 character */
for (i = 0; i < sizeof utfmask; i++) {
if (((unsigned char)*s & utfmask[i]) == utfbyte[i]) {
usize = i;
ucode = (unsigned char)*s & ~utfmask[i];
break;
}
}
/* if first byte is a continuation byte or is not allowed, return unknown */
if (i == sizeof utfmask || usize == 0)
return unknown;
/* check the other usize-1 bytes */
s++;
for (i = 1; i < usize; i++) {
*next_ret = s+1;
/* if byte is nul or is not a continuation byte, return unknown */
if (*s == '\0' || ((unsigned char)*s & utfmask[0]) != utfbyte[0])
return unknown;
/* 6 is the number of relevant bits in the continuation byte */
ucode = (ucode << 6) | ((unsigned char)*s & ~utfmask[0]);
s++;
}
/* check if ucode is invalid or in utf-16 surrogate halves */
if (!BETWEEN(ucode, utfmin[usize], utfmax[usize])
|| BETWEEN (ucode, 0xD800, 0xDFFF))
return unknown;
return ucode;
}
/* get which font contains a given code point */
static XftFont *
getfontucode(FcChar32 ucode)
{
FcCharSet *fccharset = NULL;
FcPattern *fcpattern = NULL;
FcPattern *match = NULL;
XftFont *retfont = NULL;
XftResult result;
size_t i;
for (i = 0; i < dc.nfonts; i++)
if (XftCharExists(dpy, dc.fonts[i], ucode) == FcTrue)
return dc.fonts[i];
/* create a charset containing our code point */
fccharset = FcCharSetCreate();
FcCharSetAddChar(fccharset, ucode);
/* create a pattern akin to the dc.pattern but containing our charset */
if (fccharset) {
fcpattern = FcPatternDuplicate(dc.pattern);
FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
}
/* find pattern matching fcpattern */
if (fcpattern) {
FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
FcDefaultSubstitute(fcpattern);
match = XftFontMatch(dpy, screen, fcpattern, &result);
}
/* if found a pattern, open its font */
if (match) {
retfont = XftFontOpenPattern(dpy, match);
if (retfont && XftCharExists(dpy, retfont, ucode) == FcTrue) {
if ((dc.fonts = realloc(dc.fonts, dc.nfonts+1)) == NULL)
err(1, "realloc");
dc.fonts[dc.nfonts] = retfont;
return dc.fonts[dc.nfonts++];
} else {
XftFontClose(dpy, retfont);
}
}
/* in case no fount was found, return the first one */
return dc.fonts[0];
}
/* draw text into XftDraw, return width of text glyphs */
static int
drawtext(XftDraw *draw, XftColor *color, int x, int y, unsigned h, const char *text)
{
int textwidth = 0;
while (*text) {
XftFont *currfont;
XGlyphInfo ext;
FcChar32 ucode;
const char *next;
size_t len;
ucode = getnextutf8char(text, &next);
currfont = getfontucode(ucode);
len = next - text;
XftTextExtentsUtf8(dpy, currfont, (XftChar8 *)text, len, &ext);
textwidth += ext.xOff;
if (draw) {
int texty;
texty = y + (h - (currfont->ascent + currfont->descent))/2 + currfont->ascent;
XftDrawStringUtf8(draw, color, currfont, x, texty, (XftChar8 *)text, len);
x += ext.xOff;
}
text = next;
}
return textwidth;
}
/* setup the height, width and icon of the items of a menu */
static void
setupitems(struct Menu *menu, struct Monitor *mon)
{
Pixmap pix;
struct Item *item;
int itemwidth;
int menuh;
int maxh;
menu->first = menu->list;
menu->w = config.width_pixels;
menu->maxtextw = 0;
menuh = 0;
maxh = config.max_items > 3 ? (2 + config.max_items) * config.height_pixels : mon->h;
for (item = menu->list; item != NULL; item = item->next) {
item->y = menuh;
if (item->label == NULL) /* height for separator item */
item->h = config.separator_pixels;
else
item->h = config.height_pixels;
menuh += item->h;
if (!menu->overflow) {
if (menu->h + config.height_pixels * 2 < maxh - config.border_pixels * 2) {
menu->h = menuh;
} else {
menu->overflow = 1;
menu->h += config.height_pixels * 2;
}
}
if (item->label)
item->textw = drawtext(NULL, NULL, 0, 0, 0, item->label);
else
item->textw = 0;
/*
* set menu width
*
* the item width depends on the size of its label (item->textw),
* and it is only used to calculate the width of the menu (which
* is equal to the width of the largest item).
*
* the horizontal padding appears 4 times through the width of a
* item: before and after its icon, and before and after its triangle.
* if the iflag is set (icons are disabled) then the horizontal
* padding appears 3 times: before the label and around the triangle.
*/
itemwidth = item->textw + config.triangle_width + config.horzpadding * 3;
itemwidth += (iflag || !menu->hasicon) ? 0 : config.iconsize + config.horzpadding;
menu->w = max(menu->w, itemwidth);
menu->maxtextw = max(menu->maxtextw, item->textw);
}
if (!menu->overflow) {
XSetWindowBackground(dpy, menu->win, dc.normal[ColorBG].pixel);
} else {
pix = XCreatePixmap(dpy, menu->win, menu->w, menu->h, depth);
XSetForeground(dpy, dc.gc, dc.normal[ColorBG].pixel);
XFillRectangle(dpy, pix, dc.gc, 0, 0, menu->w, menu->h);
XSetForeground(dpy, dc.gc, dc.normal[ColorFG].pixel);
XFillPolygon(
dpy, pix, dc.gc,
(XPoint []){
{menu->w / 2 - 3, config.height_pixels / 2 + 2},
{3, -4},
{3, 4},
{-6, 0},
},
4, Convex, CoordModePrevious
);
XFillPolygon(
dpy, pix, dc.gc,
(XPoint []){
{menu->w / 2 - 3, menu->h - config.height_pixels / 2 - 2},
{3, 4},
{3, -4},
{-6, 0},
},
4, Convex, CoordModePrevious
);
XSetWindowBackgroundPixmap(dpy, menu->win, pix);
XFreePixmap(dpy, pix);
}
}
/* setup the position of a menu */
static void
setupmenupos(struct Menu *menu, struct Monitor *mon)
{
int width, height;
width = menu->w + config.border_pixels * 2;
height = menu->h + config.border_pixels * 2;
if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */
if (pflag || (config.posx >= mon->x && mon->x + mon->w - config.posx >= width))
menu->x = config.posx;
else if (config.posx > width)
menu->x = config.posx - width;
if (pflag || (config.posy >= mon->y && mon->y + mon->h - config.posy >= height))
menu->y = config.posy;
else if (mon->y + mon->h > height)
menu->y = mon->y + mon->h - height;
} else { /* else, calculate in respect to parent menu */
int parentwidth;
parentwidth = menu->parent->x + menu->parent->w + config.border_pixels + config.gap_pixels;
if (mon->x + mon->w - parentwidth >= width)
menu->x = parentwidth;
else if (menu->parent->x > menu->w + config.border_pixels + config.gap_pixels)
menu->x = menu->parent->x - menu->w - config.border_pixels - config.gap_pixels;
if (mon->y + mon->h - (menu->caller->y + menu->parent->y) >= height)
menu->y = menu->caller->y + menu->parent->y;
else if (mon->y + mon->h > height)
menu->y = mon->y + mon->h - height;
}
}
/* recursivelly setup menu configuration and its pixmap */
static void
setupmenu(struct Menu *menu, struct Monitor *mon)
{
char *title;
struct Item *item;
XWindowChanges changes;
XSizeHints sizeh;
XTextProperty wintitle;
/* setup size and position of menus */
setupitems(menu, mon);
setupmenupos(menu, mon);
/* update menu geometry */
changes.height = menu->h;
changes.width = menu->w;
changes.x = menu->x;
changes.y = menu->y;
XConfigureWindow(dpy, menu->win, CWWidth | CWHeight | CWX | CWY, &changes);
if (firsttime) {
/* set window title (used if wflag is on) */
if (menu->parent == NULL) {
title = classh.res_name;
} else if (menu->caller->output) {
title = menu->caller->output;
} else {
title = "\0";