dmenu

my build of dynamic menu
git clone git://git.kocotian.pl/dmenu.git
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commit d094ebea968e3d08b985a754aa9df30f56f649c6
parent ccf4d7166fa6c70c6bfef3d8094e018b78ee4df7
Author: Anselm R. Garbe <garbeam@gmail.com>
Date:   Mon, 17 Sep 2007 20:53:14 +0200

reorganized
Diffstat:
Mdmenu.c | 587++++++++++++++++++++++++++++++++++++++++---------------------------------------
1 file changed, 299 insertions(+), 288 deletions(-)

diff --git a/dmenu.c b/dmenu.c @@ -40,134 +40,55 @@ struct Item { }; /* forward declarations */ -static void *emalloc(unsigned int size); -static void eprint(const char *errstr, ...); -static char *estrdup(const char *str); -static void drawtext(const char *text, unsigned long col[ColLast]); -static unsigned int textw(const char *text); -static unsigned int textnw(const char *text, unsigned int len); -static void calcoffsets(void); -static void drawmenu(void); -static Bool grabkeyboard(void); -static unsigned long getcolor(const char *colstr); -static void initfont(const char *fontstr); -static int strido(const char *text, const char *pattern); -static void match(char *pattern); -static void kpress(XKeyEvent * e); -static char *readstdin(void); -static void usage(void); - - -/* variables */ -static int screen; -static Display *dpy; -static DC dc = {0}; -static char text[4096]; -static char *prompt = NULL; -static int mw, mh; -static int ret = 0; -static int nitem = 0; -static unsigned int cmdw = 0; -static unsigned int promptw = 0; -static unsigned int numlockmask = 0; -static Bool running = True; -static Item *allitems = NULL; /* first of all items */ -static Item *item = NULL; /* first of pattern matching items */ -static Item *sel = NULL; -static Item *next = NULL; -static Item *prev = NULL; -static Item *curr = NULL; -static Window root; -static Window win; +void calcoffsets(void); +void cleanup(void); +void drawmenu(void); +void drawtext(const char *text, unsigned long col[ColLast]); +void *emalloc(unsigned int size); +void eprint(const char *errstr, ...); +char *estrdup(const char *str); +unsigned long getcolor(const char *colstr); +Bool grabkeyboard(void); +void initfont(const char *fontstr); +void kpress(XKeyEvent * e); +void match(char *pattern); +void readstdin(void); +void run(void); +void setup(Bool bottom); +int strido(const char *text, const char *pattern); +unsigned int textnw(const char *text, unsigned int len); +unsigned int textw(const char *text); #include "config.h" -static void * -emalloc(unsigned int size) { - void *res = malloc(size); - - if(!res) - eprint("fatal: could not malloc() %u bytes\n", size); - return res; -} - -static void -eprint(const char *errstr, ...) { - va_list ap; - - va_start(ap, errstr); - vfprintf(stderr, errstr, ap); - va_end(ap); - exit(EXIT_FAILURE); -} - -static char * -estrdup(const char *str) { - void *res = strdup(str); - - if(!res) - eprint("fatal: could not malloc() %u bytes\n", strlen(str)); - return res; -} - - -static void -drawtext(const char *text, unsigned long col[ColLast]) { - int x, y, w, h; - static char buf[256]; - unsigned int len, olen; - XRectangle r = { dc.x, dc.y, dc.w, dc.h }; - - XSetForeground(dpy, dc.gc, col[ColBG]); - XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); - if(!text) - return; - w = 0; - olen = len = strlen(text); - if(len >= sizeof buf) - len = sizeof buf - 1; - memcpy(buf, text, len); - buf[len] = 0; - h = dc.font.ascent + dc.font.descent; - y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; - x = dc.x + (h / 2); - /* shorten text if necessary */ - while(len && (w = textnw(buf, len)) > dc.w - h) - buf[--len] = 0; - if(len < olen) { - if(len > 1) - buf[len - 1] = '.'; - if(len > 2) - buf[len - 2] = '.'; - if(len > 3) - buf[len - 3] = '.'; - } - if(w > dc.w) - return; /* too long */ - XSetForeground(dpy, dc.gc, col[ColFG]); - if(dc.font.set) - XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); - else - XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); -} - -static unsigned int -textw(const char *text) { - return textnw(text, strlen(text)) + dc.font.height; -} - -static unsigned int -textnw(const char *text, unsigned int len) { - XRectangle r; - - if(dc.font.set) { - XmbTextExtents(dc.font.set, text, len, NULL, &r); - return r.width; - } - return XTextWidth(dc.font.xfont, text, len); -} - -static void +/* variables */ +char *font = FONT; +char *maxname = NULL; +char *normbg = NORMBGCOLOR; +char *normfg = NORMFGCOLOR; +char *prompt = NULL; +char *selbg = SELBGCOLOR; +char *selfg = SELFGCOLOR; +char text[4096]; +int screen; +int ret = 0; +unsigned int cmdw = 0; +unsigned int mw, mh; +unsigned int promptw = 0; +unsigned int nitem = 0; +unsigned int numlockmask = 0; +Bool running = True; +Display *dpy; +DC dc = {0}; +Item *allitems = NULL; /* first of all items */ +Item *item = NULL; /* first of pattern matching items */ +Item *sel = NULL; +Item *next = NULL; +Item *prev = NULL; +Item *curr = NULL; +Window root, win; + +void calcoffsets(void) { unsigned int tw, w; @@ -193,7 +114,27 @@ calcoffsets(void) { } } -static void +void +cleanup(void) { + Item *itm; + + while(allitems) { + itm = allitems->next; + free(allitems->text); + free(allitems); + allitems = itm; + } + if(dc.font.set) + XFreeFontSet(dpy, dc.font.set); + else + XFreeFont(dpy, dc.font.xfont); + XFreePixmap(dpy, dc.drawable); + XFreeGC(dpy, dc.gc); + XDestroyWindow(dpy, win); + XUngrabKeyboard(dpy, CurrentTime); +} + +void drawmenu(void) { Item *i; @@ -234,20 +175,75 @@ drawmenu(void) { XFlush(dpy); } -static Bool -grabkeyboard(void) { - unsigned int len; +void +drawtext(const char *text, unsigned long col[ColLast]) { + int x, y, w, h; + static char buf[256]; + unsigned int len, olen; + XRectangle r = { dc.x, dc.y, dc.w, dc.h }; - for(len = 1000; len; len--) { - if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) - == GrabSuccess) - break; - usleep(1000); + XSetForeground(dpy, dc.gc, col[ColBG]); + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); + if(!text) + return; + w = 0; + olen = len = strlen(text); + if(len >= sizeof buf) + len = sizeof buf - 1; + memcpy(buf, text, len); + buf[len] = 0; + h = dc.font.ascent + dc.font.descent; + y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; + x = dc.x + (h / 2); + /* shorten text if necessary */ + while(len && (w = textnw(buf, len)) > dc.w - h) + buf[--len] = 0; + if(len < olen) { + if(len > 1) + buf[len - 1] = '.'; + if(len > 2) + buf[len - 2] = '.'; + if(len > 3) + buf[len - 3] = '.'; } - return len > 0; + if(w > dc.w) + return; /* too long */ + XSetForeground(dpy, dc.gc, col[ColFG]); + if(dc.font.set) + XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); + else + XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); +} + +void * +emalloc(unsigned int size) { + void *res = malloc(size); + + if(!res) + eprint("fatal: could not malloc() %u bytes\n", size); + return res; +} + +void +eprint(const char *errstr, ...) { + va_list ap; + + va_start(ap, errstr); + vfprintf(stderr, errstr, ap); + va_end(ap); + exit(EXIT_FAILURE); +} + +char * +estrdup(const char *str) { + void *res = strdup(str); + + if(!res) + eprint("fatal: could not malloc() %u bytes\n", strlen(str)); + return res; } -static unsigned long +unsigned long getcolor(const char *colstr) { Colormap cmap = DefaultColormap(dpy, screen); XColor color; @@ -257,7 +253,20 @@ getcolor(const char *colstr) { return color.pixel; } -static void +Bool +grabkeyboard(void) { + unsigned int len; + + for(len = 1000; len; len--) { + if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) + == GrabSuccess) + break; + usleep(1000); + } + return len > 0; +} + +void initfont(const char *fontstr) { char *def, **missing; int i, n; @@ -299,65 +308,7 @@ initfont(const char *fontstr) { dc.font.height = dc.font.ascent + dc.font.descent; } -static int -strido(const char *text, const char *pattern) { - for(; *text && *pattern; text++) - if (*text == *pattern) - pattern++; - return !*pattern; -} - -static void -match(char *pattern) { - unsigned int plen; - Item *i, *j; - - if(!pattern) - return; - plen = strlen(pattern); - item = j = NULL; - nitem = 0; - for(i = allitems; i; i=i->next) - if(!plen || !strncmp(pattern, i->text, plen)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - for(i = allitems; i; i=i->next) - if(plen && strncmp(pattern, i->text, plen) - && strstr(i->text, pattern)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - for(i = allitems; i; i=i->next) - if(plen && strncmp(pattern, i->text, plen) - && !strstr(i->text, pattern) - && strido(i->text,pattern)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - curr = prev = next = sel = item; - calcoffsets(); -} - -static void +void kpress(XKeyEvent * e) { char buf[32]; int i, num; @@ -528,9 +479,58 @@ kpress(XKeyEvent * e) { drawmenu(); } -static char * +void +match(char *pattern) { + unsigned int plen; + Item *i, *j; + + if(!pattern) + return; + plen = strlen(pattern); + item = j = NULL; + nitem = 0; + for(i = allitems; i; i=i->next) + if(!plen || !strncmp(pattern, i->text, plen)) { + if(!j) + item = i; + else + j->right = i; + i->left = j; + i->right = NULL; + j = i; + nitem++; + } + for(i = allitems; i; i=i->next) + if(plen && strncmp(pattern, i->text, plen) + && strstr(i->text, pattern)) { + if(!j) + item = i; + else + j->right = i; + i->left = j; + i->right = NULL; + j = i; + nitem++; + } + for(i = allitems; i; i=i->next) + if(plen && strncmp(pattern, i->text, plen) + && !strstr(i->text, pattern) + && strido(i->text,pattern)) { + if(!j) + item = i; + else + j->right = i; + i->left = j; + i->right = NULL; + j = i; + nitem++; + } + curr = prev = next = sel = item; + calcoffsets(); +} + +void readstdin(void) { - static char *maxname = NULL; char *p, buf[1024]; unsigned int len = 0, max = 0; Item *i, *new; @@ -554,88 +554,50 @@ readstdin(void) { i->next = new; i = new; } - - return maxname; } -static void -usage(void) { - eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n" - " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n"); +void +run(void) { + XEvent ev; + + /* main event loop */ + while(running && !XNextEvent(dpy, &ev)) + switch (ev.type) { + default: /* ignore all crap */ + break; + case KeyPress: + kpress(&ev.xkey); + break; + case Expose: + if(ev.xexpose.count == 0) + drawmenu(); + break; + } } -int -main(int argc, char *argv[]) { - Bool bottom = False; - char *font = FONT; - char *maxname; - char *normbg = NORMBGCOLOR; - char *normfg = NORMFGCOLOR; - char *selbg = SELBGCOLOR; - char *selfg = SELFGCOLOR; - int i, j; - Item *itm; - XEvent ev; +void +setup(Bool bottom) { + unsigned int i, j; XModifierKeymap *modmap; XSetWindowAttributes wa; - /* command line args */ - for(i = 1; i < argc; i++) - if(!strcmp(argv[i], "-b")) { - bottom = True; - } - else if(!strcmp(argv[i], "-fn")) { - if(++i < argc) font = argv[i]; - } - else if(!strcmp(argv[i], "-nb")) { - if(++i < argc) normbg = argv[i]; - } - else if(!strcmp(argv[i], "-nf")) { - if(++i < argc) normfg = argv[i]; - } - else if(!strcmp(argv[i], "-p")) { - if(++i < argc) prompt = argv[i]; - } - else if(!strcmp(argv[i], "-sb")) { - if(++i < argc) selbg = argv[i]; - } - else if(!strcmp(argv[i], "-sf")) { - if(++i < argc) selfg = argv[i]; - } - else if(!strcmp(argv[i], "-v")) - eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n"); - else - usage(); - setlocale(LC_CTYPE, ""); - dpy = XOpenDisplay(0); - if(!dpy) - eprint("dmenu: cannot open display\n"); - screen = DefaultScreen(dpy); - root = RootWindow(dpy, screen); - if(isatty(STDIN_FILENO)) { - maxname = readstdin(); - running = grabkeyboard(); - } - else { /* prevent keypress loss */ - running = grabkeyboard(); - maxname = readstdin(); - } /* init modifier map */ modmap = XGetModifierMapping(dpy); - for (i = 0; i < 8; i++) { - for (j = 0; j < modmap->max_keypermod; j++) { + for(i = 0; i < 8; i++) + for(j = 0; j < modmap->max_keypermod; j++) { if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock)) numlockmask = (1 << i); } - } XFreeModifiermap(modmap); + /* style */ dc.norm[ColBG] = getcolor(normbg); dc.norm[ColFG] = getcolor(normfg); dc.sel[ColBG] = getcolor(selbg); dc.sel[ColFG] = getcolor(selfg); initfont(font); + /* menu window */ wa.override_redirect = 1; wa.background_pixmap = ParentRelative; @@ -647,6 +609,7 @@ main(int argc, char *argv[]) { DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); + /* pixmap */ dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen)); dc.gc = XCreateGC(dpy, root, 0, 0); @@ -664,38 +627,86 @@ main(int argc, char *argv[]) { text[0] = 0; match(text); XMapRaised(dpy, win); - drawmenu(); - XSync(dpy, False); +} - /* main event loop */ - while(running && !XNextEvent(dpy, &ev)) - switch (ev.type) { - default: /* ignore all crap */ - break; - case KeyPress: - kpress(&ev.xkey); - break; - case Expose: - if(ev.xexpose.count == 0) - drawmenu(); - break; +int +strido(const char *text, const char *pattern) { + for(; *text && *pattern; text++) + if (*text == *pattern) + pattern++; + return !*pattern; +} + +unsigned int +textnw(const char *text, unsigned int len) { + XRectangle r; + + if(dc.font.set) { + XmbTextExtents(dc.font.set, text, len, NULL, &r); + return r.width; + } + return XTextWidth(dc.font.xfont, text, len); +} + +unsigned int +textw(const char *text) { + return textnw(text, strlen(text)) + dc.font.height; +} + +int +main(int argc, char *argv[]) { + Bool bottom = False; + unsigned int i; + + /* command line args */ + for(i = 1; i < argc; i++) + if(!strcmp(argv[i], "-b")) { + bottom = True; + } + else if(!strcmp(argv[i], "-fn")) { + if(++i < argc) font = argv[i]; + } + else if(!strcmp(argv[i], "-nb")) { + if(++i < argc) normbg = argv[i]; + } + else if(!strcmp(argv[i], "-nf")) { + if(++i < argc) normfg = argv[i]; + } + else if(!strcmp(argv[i], "-p")) { + if(++i < argc) prompt = argv[i]; + } + else if(!strcmp(argv[i], "-sb")) { + if(++i < argc) selbg = argv[i]; + } + else if(!strcmp(argv[i], "-sf")) { + if(++i < argc) selfg = argv[i]; } + else if(!strcmp(argv[i], "-v")) + eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n"); + else + eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n" + " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n"); + setlocale(LC_CTYPE, ""); + dpy = XOpenDisplay(0); + if(!dpy) + eprint("dmenu: cannot open display\n"); + screen = DefaultScreen(dpy); + root = RootWindow(dpy, screen); - /* cleanup */ - while(allitems) { - itm = allitems->next; - free(allitems->text); - free(allitems); - allitems = itm; + if(isatty(STDIN_FILENO)) { + readstdin(); + running = grabkeyboard(); } - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - else - XFreeFont(dpy, dc.font.xfont); - XFreePixmap(dpy, dc.drawable); - XFreeGC(dpy, dc.gc); - XDestroyWindow(dpy, win); - XUngrabKeyboard(dpy, CurrentTime); + else { /* prevent keypress loss */ + running = grabkeyboard(); + readstdin(); + } + + setup(bottom); + drawmenu(); + XSync(dpy, False); + run(); + cleanup(); XCloseDisplay(dpy); return ret; }