dmenu

my build of dynamic menu
git clone git://git.kocotian.pl/dmenu.git
Log | Files | Refs | README | LICENSE

commit 06ae8944344cd6f7d0aa007b7b036e77cb87fdf1
parent b97783b07feae30f9df12c1a720d17a2dc877018
Author: Anselm R. Garbe <garbeam@gmail.com>
Date:   Sun, 16 Sep 2007 20:14:09 +0200

micromizing dmenu step 1
Diffstat:
MMakefile | 6+++---
Aconfig.h | 10++++++++++
Admenu.c | 701+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Ddmenu.h | 41-----------------------------------------
Ddraw.c | 61-------------------------------------------------------------
Dmain.c | 578------------------------------------------------------------------------------
Dutil.c | 34----------------------------------
7 files changed, 714 insertions(+), 717 deletions(-)

diff --git a/Makefile b/Makefile @@ -3,7 +3,7 @@ include config.mk -SRC = draw.c main.c util.c +SRC = dmenu.c OBJ = ${SRC:.c=.o} all: options dmenu @@ -18,7 +18,7 @@ options: @echo CC $< @${CC} -c ${CFLAGS} $< -${OBJ}: dmenu.h config.mk +${OBJ}: config.h config.mk dmenu: ${OBJ} @echo CC -o $@ @@ -31,7 +31,7 @@ clean: dist: clean @echo creating dist tarball @mkdir -p dmenu-${VERSION} - @cp -R LICENSE Makefile README config.mk dmenu.1 dmenu.h dmenu_path ${SRC} dmenu-${VERSION} + @cp -R LICENSE Makefile README config.mk dmenu.1 config.h dmenu_path ${SRC} dmenu-${VERSION} @tar -cf dmenu-${VERSION}.tar dmenu-${VERSION} @gzip dmenu-${VERSION}.tar @rm -rf dmenu-${VERSION} diff --git a/config.h b/config.h @@ -0,0 +1,10 @@ +/* See LICENSE file for copyright and license details. */ + +/* appearance */ +#define FONT "-*-terminus-medium-r-*-*-12-*-*-*-*-*-iso10646-*" +#define NORMBGCOLOR "#000" +#define NORMFGCOLOR "#ccc" +#define SELBGCOLOR "#00f" +#define SELFGCOLOR "#fff" +/* next macro defines the space between menu items */ +#define SPACE 30 /* px */ diff --git a/dmenu.c b/dmenu.c @@ -0,0 +1,701 @@ +/* See LICENSE file for copyright and license details. */ +#include <ctype.h> +#include <locale.h> +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> + +/* macros */ +#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) + +/* enums */ +enum { ColFG, ColBG, ColLast }; + +/* typedefs */ +typedef struct { + int x, y, w, h; + unsigned long norm[ColLast]; + unsigned long sel[ColLast]; + Drawable drawable; + GC gc; + struct { + XFontStruct *xfont; + XFontSet set; + int ascent; + int descent; + int height; + } font; +} DC; /* draw context */ + +typedef struct Item Item; +struct Item { + Item *next; /* traverses all items */ + Item *left, *right; /* traverses items matching current search pattern */ + char *text; +}; + +/* 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; + +#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 +calcoffsets(void) { + unsigned int tw, w; + + if(!curr) + return; + w = promptw + cmdw + 2 * SPACE; + for(next = curr; next; next=next->right) { + tw = textw(next->text); + if(tw > mw / 3) + tw = mw / 3; + w += tw; + if(w > mw) + break; + } + w = promptw + cmdw + 2 * SPACE; + for(prev = curr; prev && prev->left; prev=prev->left) { + tw = textw(prev->left->text); + if(tw > mw / 3) + tw = mw / 3; + w += tw; + if(w > mw) + break; + } +} + +static void +drawmenu(void) { + Item *i; + + dc.x = 0; + dc.y = 0; + dc.w = mw; + dc.h = mh; + drawtext(NULL, dc.norm); + /* print prompt? */ + if(promptw) { + dc.w = promptw; + drawtext(prompt, dc.sel); + } + dc.x += promptw; + dc.w = mw - promptw; + /* print command */ + if(cmdw && item) + dc.w = cmdw; + drawtext(text[0] ? text : NULL, dc.norm); + dc.x += cmdw; + if(curr) { + dc.w = SPACE; + drawtext((curr && curr->left) ? "<" : NULL, dc.norm); + dc.x += dc.w; + /* determine maximum items */ + for(i = curr; i != next; i=i->right) { + dc.w = textw(i->text); + if(dc.w > mw / 3) + dc.w = mw / 3; + drawtext(i->text, (sel == i) ? dc.sel : dc.norm); + dc.x += dc.w; + } + dc.x = mw - SPACE; + dc.w = SPACE; + drawtext(next ? ">" : NULL, dc.norm); + } + XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); + XFlush(dpy); +} + +static 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; +} + +static unsigned long +getcolor(const char *colstr) { + Colormap cmap = DefaultColormap(dpy, screen); + XColor color; + + if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) + eprint("error, cannot allocate color '%s'\n", colstr); + return color.pixel; +} + +static void +initfont(const char *fontstr) { + char *def, **missing; + int i, n; + + if(!fontstr || fontstr[0] == '\0') + eprint("error, cannot load font: '%s'\n", fontstr); + missing = NULL; + if(dc.font.set) + XFreeFontSet(dpy, dc.font.set); + dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); + if(missing) + XFreeStringList(missing); + if(dc.font.set) { + XFontSetExtents *font_extents; + XFontStruct **xfonts; + char **font_names; + dc.font.ascent = dc.font.descent = 0; + font_extents = XExtentsOfFontSet(dc.font.set); + n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); + for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { + if(dc.font.ascent < (*xfonts)->ascent) + dc.font.ascent = (*xfonts)->ascent; + if(dc.font.descent < (*xfonts)->descent) + dc.font.descent = (*xfonts)->descent; + xfonts++; + } + } + else { + if(dc.font.xfont) + XFreeFont(dpy, dc.font.xfont); + dc.font.xfont = NULL; + if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) { + if(!(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) + eprint("error, cannot load font: '%s'\n", fontstr); + } + dc.font.ascent = dc.font.xfont->ascent; + dc.font.descent = dc.font.xfont->descent; + } + 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 +kpress(XKeyEvent * e) { + char buf[32]; + int i, num; + unsigned int len; + KeySym ksym; + + len = strlen(text); + buf[0] = 0; + num = XLookupString(e, buf, sizeof buf, &ksym, 0); + if(IsKeypadKey(ksym)) { + if(ksym == XK_KP_Enter) { + ksym = XK_Return; + } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) { + ksym = (ksym - XK_KP_0) + XK_0; + } + } + if(IsFunctionKey(ksym) || IsKeypadKey(ksym) + || IsMiscFunctionKey(ksym) || IsPFKey(ksym) + || IsPrivateKeypadKey(ksym)) + return; + /* first check if a control mask is omitted */ + if(e->state & ControlMask) { + switch (ksym) { + default: /* ignore other control sequences */ + return; + case XK_bracketleft: + ksym = XK_Escape; + break; + case XK_h: + case XK_H: + ksym = XK_BackSpace; + break; + case XK_i: + case XK_I: + ksym = XK_Tab; + break; + case XK_j: + case XK_J: + ksym = XK_Return; + break; + case XK_u: + case XK_U: + text[0] = 0; + match(text); + drawmenu(); + return; + case XK_w: + case XK_W: + if(len) { + i = len - 1; + while(i >= 0 && text[i] == ' ') + text[i--] = 0; + while(i >= 0 && text[i] != ' ') + text[i--] = 0; + match(text); + drawmenu(); + } + return; + } + } + if(CLEANMASK(e->state) & Mod1Mask) { + switch(ksym) { + default: return; + case XK_h: + ksym = XK_Left; + break; + case XK_l: + ksym = XK_Right; + break; + case XK_j: + ksym = XK_Next; + break; + case XK_k: + ksym = XK_Prior; + break; + case XK_g: + ksym = XK_Home; + break; + case XK_G: + ksym = XK_End; + break; + } + } + switch(ksym) { + default: + if(num && !iscntrl((int) buf[0])) { + buf[num] = 0; + if(len > 0) + strncat(text, buf, sizeof text); + else + strncpy(text, buf, sizeof text); + match(text); + } + break; + case XK_BackSpace: + if(len) { + text[--len] = 0; + match(text); + } + break; + case XK_End: + if(!item) + return; + while(next) { + sel = curr = next; + calcoffsets(); + } + while(sel && sel->right) + sel = sel->right; + break; + case XK_Escape: + ret = 1; + running = False; + break; + case XK_Home: + if(!item) + return; + sel = curr = item; + calcoffsets(); + break; + case XK_Left: + if(!(sel && sel->left)) + return; + sel=sel->left; + if(sel->right == curr) { + curr = prev; + calcoffsets(); + } + break; + case XK_Next: + if(!next) + return; + sel = curr = next; + calcoffsets(); + break; + case XK_Prior: + if(!prev) + return; + sel = curr = prev; + calcoffsets(); + break; + case XK_Return: + if((e->state & ShiftMask) && text) + fprintf(stdout, "%s", text); + else if(sel) + fprintf(stdout, "%s", sel->text); + else if(text) + fprintf(stdout, "%s", text); + fflush(stdout); + running = False; + break; + case XK_Right: + if(!(sel && sel->right)) + return; + sel=sel->right; + if(sel == next) { + curr = next; + calcoffsets(); + } + break; + case XK_Tab: + if(!sel) + return; + strncpy(text, sel->text, sizeof text); + match(text); + break; + } + drawmenu(); +} + +static char * +readstdin(void) { + static char *maxname = NULL; + char *p, buf[1024]; + unsigned int len = 0, max = 0; + Item *i, *new; + + i = 0; + while(fgets(buf, sizeof buf, stdin)) { + len = strlen(buf); + if (buf[len - 1] == '\n') + buf[len - 1] = 0; + p = estrdup(buf); + if(max < len) { + maxname = p; + max = len; + } + new = emalloc(sizeof(Item)); + new->next = new->left = new->right = NULL; + new->text = p; + if(!i) + allitems = new; + else + 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"); +} + +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; + 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++) { + 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; + wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask; + mw = DisplayWidth(dpy, screen); + mh = dc.font.height + 2; + win = XCreateWindow(dpy, root, 0, + bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0, + 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); + XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); + if(!dc.font.set) + XSetFont(dpy, dc.gc, dc.font.xfont->fid); + if(maxname) + cmdw = textw(maxname); + if(cmdw > mw / 3) + cmdw = mw / 3; + if(prompt) + promptw = textw(prompt); + if(promptw > mw / 5) + promptw = mw / 5; + 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; + } + + /* cleanup */ + 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); + XCloseDisplay(dpy); + return ret; +} diff --git a/dmenu.h b/dmenu.h @@ -1,41 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <X11/Xlib.h> - -#define FONT "-*-fixed-medium-r-normal-*-13-*-*-*-*-*-*-*" -#define NORMBGCOLOR "#eeeeee" -#define NORMFGCOLOR "#222222" -#define SELBGCOLOR "#006699" -#define SELFGCOLOR "#ffffff" -#define SPACE 30 /* px */ - -/* color */ -enum { ColFG, ColBG, ColLast }; - -typedef struct { - int x, y, w, h; - unsigned long norm[ColLast]; - unsigned long sel[ColLast]; - Drawable drawable; - GC gc; - struct { - XFontStruct *xfont; - XFontSet set; - int ascent; - int descent; - int height; - } font; -} DC; /* draw context */ - -extern int screen; -extern Display *dpy; -extern DC dc; /* global drawing context */ - -/* draw.c */ -void drawtext(const char *text, unsigned long col[ColLast]); -unsigned int textw(const char *text); -unsigned int textnw(const char *text, unsigned int len); - -/* util.c */ -void *emalloc(unsigned int size); /* allocates memory, exits on error */ -void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */ -char *estrdup(const char *str); /* duplicates str, exits on allocation error */ diff --git a/draw.c b/draw.c @@ -1,61 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dmenu.h" -#include <string.h> - -/* extern */ - -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); -} - -unsigned int -textw(const char *text) { - return textnw(text, strlen(text)) + dc.font.height; -} - -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); -} diff --git a/main.c b/main.c @@ -1,578 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dmenu.h" -#include <ctype.h> -#include <locale.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <X11/Xutil.h> -#include <X11/keysym.h> - -#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) - -typedef struct Item Item; -struct Item { - Item *next; /* traverses all items */ - Item *left, *right; /* traverses items matching current search pattern */ - char *text; -}; - -/* static */ - -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; - -static void -calcoffsets(void) { - unsigned int tw, w; - - if(!curr) - return; - w = promptw + cmdw + 2 * SPACE; - for(next = curr; next; next=next->right) { - tw = textw(next->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw; - if(w > mw) - break; - } - w = promptw + cmdw + 2 * SPACE; - for(prev = curr; prev && prev->left; prev=prev->left) { - tw = textw(prev->left->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw; - if(w > mw) - break; - } -} - -static void -drawmenu(void) { - Item *i; - - dc.x = 0; - dc.y = 0; - dc.w = mw; - dc.h = mh; - drawtext(NULL, dc.norm); - /* print prompt? */ - if(promptw) { - dc.w = promptw; - drawtext(prompt, dc.sel); - } - dc.x += promptw; - dc.w = mw - promptw; - /* print command */ - if(cmdw && item) - dc.w = cmdw; - drawtext(text[0] ? text : NULL, dc.norm); - dc.x += cmdw; - if(curr) { - dc.w = SPACE; - drawtext((curr && curr->left) ? "<" : NULL, dc.norm); - dc.x += dc.w; - /* determine maximum items */ - for(i = curr; i != next; i=i->right) { - dc.w = textw(i->text); - if(dc.w > mw / 3) - dc.w = mw / 3; - drawtext(i->text, (sel == i) ? dc.sel : dc.norm); - dc.x += dc.w; - } - dc.x = mw - SPACE; - dc.w = SPACE; - drawtext(next ? ">" : NULL, dc.norm); - } - XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); - XFlush(dpy); -} - -static 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; -} - -static unsigned long -initcolor(const char *colstr) { - Colormap cmap = DefaultColormap(dpy, screen); - XColor color; - - if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) - eprint("error, cannot allocate color '%s'\n", colstr); - return color.pixel; -} - -static void -initfont(const char *fontstr) { - char *def, **missing; - int i, n; - - if(!fontstr || fontstr[0] == '\0') - eprint("error, cannot load font: '%s'\n", fontstr); - missing = NULL; - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); - if(missing) - XFreeStringList(missing); - if(dc.font.set) { - XFontSetExtents *font_extents; - XFontStruct **xfonts; - char **font_names; - dc.font.ascent = dc.font.descent = 0; - font_extents = XExtentsOfFontSet(dc.font.set); - n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); - for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { - if(dc.font.ascent < (*xfonts)->ascent) - dc.font.ascent = (*xfonts)->ascent; - if(dc.font.descent < (*xfonts)->descent) - dc.font.descent = (*xfonts)->descent; - xfonts++; - } - } - else { - if(dc.font.xfont) - XFreeFont(dpy, dc.font.xfont); - dc.font.xfont = NULL; - if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) { - if(!(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) - eprint("error, cannot load font: '%s'\n", fontstr); - } - dc.font.ascent = dc.font.xfont->ascent; - dc.font.descent = dc.font.xfont->descent; - } - 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 -kpress(XKeyEvent * e) { - char buf[32]; - int i, num; - unsigned int len; - KeySym ksym; - - len = strlen(text); - buf[0] = 0; - num = XLookupString(e, buf, sizeof buf, &ksym, 0); - if(IsKeypadKey(ksym)) { - if(ksym == XK_KP_Enter) { - ksym = XK_Return; - } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) { - ksym = (ksym - XK_KP_0) + XK_0; - } - } - if(IsFunctionKey(ksym) || IsKeypadKey(ksym) - || IsMiscFunctionKey(ksym) || IsPFKey(ksym) - || IsPrivateKeypadKey(ksym)) - return; - /* first check if a control mask is omitted */ - if(e->state & ControlMask) { - switch (ksym) { - default: /* ignore other control sequences */ - return; - case XK_bracketleft: - ksym = XK_Escape; - break; - case XK_h: - case XK_H: - ksym = XK_BackSpace; - break; - case XK_i: - case XK_I: - ksym = XK_Tab; - break; - case XK_j: - case XK_J: - ksym = XK_Return; - break; - case XK_u: - case XK_U: - text[0] = 0; - match(text); - drawmenu(); - return; - case XK_w: - case XK_W: - if(len) { - i = len - 1; - while(i >= 0 && text[i] == ' ') - text[i--] = 0; - while(i >= 0 && text[i] != ' ') - text[i--] = 0; - match(text); - drawmenu(); - } - return; - } - } - if(CLEANMASK(e->state) & Mod1Mask) { - switch(ksym) { - default: return; - case XK_h: - ksym = XK_Left; - break; - case XK_l: - ksym = XK_Right; - break; - case XK_j: - ksym = XK_Next; - break; - case XK_k: - ksym = XK_Prior; - break; - case XK_g: - ksym = XK_Home; - break; - case XK_G: - ksym = XK_End; - break; - } - } - switch(ksym) { - default: - if(num && !iscntrl((int) buf[0])) { - buf[num] = 0; - if(len > 0) - strncat(text, buf, sizeof text); - else - strncpy(text, buf, sizeof text); - match(text); - } - break; - case XK_BackSpace: - if(len) { - text[--len] = 0; - match(text); - } - break; - case XK_End: - if(!item) - return; - while(next) { - sel = curr = next; - calcoffsets(); - } - while(sel && sel->right) - sel = sel->right; - break; - case XK_Escape: - ret = 1; - running = False; - break; - case XK_Home: - if(!item) - return; - sel = curr = item; - calcoffsets(); - break; - case XK_Left: - if(!(sel && sel->left)) - return; - sel=sel->left; - if(sel->right == curr) { - curr = prev; - calcoffsets(); - } - break; - case XK_Next: - if(!next) - return; - sel = curr = next; - calcoffsets(); - break; - case XK_Prior: - if(!prev) - return; - sel = curr = prev; - calcoffsets(); - break; - case XK_Return: - if((e->state & ShiftMask) && text) - fprintf(stdout, "%s", text); - else if(sel) - fprintf(stdout, "%s", sel->text); - else if(text) - fprintf(stdout, "%s", text); - fflush(stdout); - running = False; - break; - case XK_Right: - if(!(sel && sel->right)) - return; - sel=sel->right; - if(sel == next) { - curr = next; - calcoffsets(); - } - break; - case XK_Tab: - if(!sel) - return; - strncpy(text, sel->text, sizeof text); - match(text); - break; - } - drawmenu(); -} - -static char * -readstdin(void) { - static char *maxname = NULL; - char *p, buf[1024]; - unsigned int len = 0, max = 0; - Item *i, *new; - - i = 0; - while(fgets(buf, sizeof buf, stdin)) { - len = strlen(buf); - if (buf[len - 1] == '\n') - buf[len - 1] = 0; - p = estrdup(buf); - if(max < len) { - maxname = p; - max = len; - } - new = emalloc(sizeof(Item)); - new->next = new->left = new->right = NULL; - new->text = p; - if(!i) - allitems = new; - else - 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"); -} - -/* extern */ - -int screen; -Display *dpy; -DC dc = {0}; - -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; - 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++) { - if(modmap->modifiermap[i * modmap->max_keypermod + j] - == XKeysymToKeycode(dpy, XK_Num_Lock)) - numlockmask = (1 << i); - } - } - XFreeModifiermap(modmap); - /* style */ - dc.norm[ColBG] = initcolor(normbg); - dc.norm[ColFG] = initcolor(normfg); - dc.sel[ColBG] = initcolor(selbg); - dc.sel[ColFG] = initcolor(selfg); - initfont(font); - /* menu window */ - wa.override_redirect = 1; - wa.background_pixmap = ParentRelative; - wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask; - mw = DisplayWidth(dpy, screen); - mh = dc.font.height + 2; - win = XCreateWindow(dpy, root, 0, - bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0, - 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); - XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); - if(!dc.font.set) - XSetFont(dpy, dc.gc, dc.font.xfont->fid); - if(maxname) - cmdw = textw(maxname); - if(cmdw > mw / 3) - cmdw = mw / 3; - if(prompt) - promptw = textw(prompt); - if(promptw > mw / 5) - promptw = mw / 5; - 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; - } - - /* cleanup */ - 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); - XCloseDisplay(dpy); - return ret; -} diff --git a/util.c b/util.c @@ -1,34 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dmenu.h" -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -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; -}