reorganized

1 files changed, 299 insertions, 288 deletions

diff --git a/dmenu.c b/dmenu.c
index b684175..34df9ed 100644
--- 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;
 }