tfixed vlist paging, cleaned up - dmenu - Dmenu fork with xft fonts.
 (HTM) git clone git://r-36.net/dmenu
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       ---
 (DIR) commit 6366f94e36e958d9856738a4dbed0a5e1c3926eb
 (DIR) parent 645f1d0dfcb3dada105b3633fb3b7c3d053fbd43
 (HTM) Author: Connor Lane Smith <cls@lubutu.com>
       Date:   Fri, 11 Jun 2010 09:24:33 +0100
       
       fixed vlist paging, cleaned up
       Diffstat:
         dmenu.c                             |      90 +++++++++++--------------------
       
       1 file changed, 32 insertions(+), 58 deletions(-)
       ---
 (DIR) diff --git a/dmenu.c b/dmenu.c
       t@@ -111,45 +111,30 @@ appenditem(Item *i, Item **list, Item **last) {
        
        void
        calcoffsetsh(void) {
       -        int tw;
                unsigned int w;
        
                if(!curr)
                        return;
                w = promptw + cmdw + 2 * spaceitem;
       -        for(next = curr; next; next=next->right) {
       -                tw = MIN(textw(next->text), mw / 3);
       -                w += tw;
       -                if(w > mw)
       -                        break;
       -        }
       +        for(next = curr; next && w < mw; next=next->right)
       +                w += MIN(textw(next->text), mw / 3);
                w = promptw + cmdw + 2 * spaceitem;
       -        for(prev = curr; prev && prev->left; prev=prev->left) {
       -                tw = MIN(textw(prev->left->text), mw / 3);
       -                w += tw;
       -                if(w > mw)
       -                        break;
       -        }
       +        for(prev = curr; prev && prev->left && w < mw; prev=prev->left)
       +                w += MIN(textw(prev->left->text), mw / 3);
        }
        
        void
        calcoffsetsv(void) {
       -        static unsigned int h;
       +        unsigned int h;
        
                if(!curr)
                        return;
       -        h = (dc.font.height + 2) * (lines + 1);
       -        for(next = curr; next; next=next->right) {
       +        h = (dc.font.height + 2) * lines;
       +        for(next = curr; next && h > 0; next = next->right)
                        h -= dc.font.height + 2;
       -                if(h <= 0)
       -                        break;
       -        }
       -        h = (dc.font.height + 2) * (lines + 1);
       -        for(prev = curr; prev && prev->left; prev=prev->left) {
       +        h = (dc.font.height + 2) * lines;
       +        for(prev = curr; prev && prev->left && h > 0; prev = prev->left)
                        h -= dc.font.height + 2;
       -                if(h <= 0)
       -                        break;
       -        }
        }
        
        char *
       t@@ -177,14 +162,6 @@ cistrstr(const char *s, const char *sub) {
        
        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
       t@@ -257,11 +234,13 @@ drawmenuv(void) {
                Item *i;
        
                dc.w = mw - dc.x;
       -        dc.y += dc.font.height + 2;
       +        dc.h = dc.font.height + 2;
       +        dc.y = dc.h;
                for(i = curr; i != next; i=i->right) {
                        drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
       -                dc.y += dc.font.height + 2;
       +                dc.y += dc.h;
                }
       +        dc.h = mh - dc.y;
                drawtext(NULL, dc.norm);
        }
        
       t@@ -309,7 +288,7 @@ getcolor(const char *colstr) {
                XColor color;
        
                if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
       -                eprint("error, cannot allocate color '%s'\n", colstr);
       +                eprint("dmenu: cannot allocate color '%s'\n", colstr);
                return color.pixel;
        }
        
       t@@ -328,12 +307,11 @@ grabkeyboard(void) {
        
        void
        initfont(const char *fontstr) {
       -        char *def, **missing;
       +        char *def, **missing = NULL;
                int i, n;
        
                if(!fontstr || fontstr[0] == '\0')
       -                eprint("error, cannot load font: '%s'\n", fontstr);
       -        missing = NULL;
       +                eprint("dmenu: cannot load font: '%s'\n", fontstr);
                dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
                if(missing)
                        XFreeStringList(missing);
       t@@ -351,7 +329,7 @@ initfont(const char *fontstr) {
                else {
                        if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
                        && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
       -                        eprint("error, cannot load font: '%s'\n", fontstr);
       +                        eprint("dmenu: cannot load font: '%s'\n", fontstr);
                        dc.font.ascent = dc.font.xfont->ascent;
                        dc.font.descent = dc.font.xfont->descent;
                }
       t@@ -361,12 +339,11 @@ initfont(const char *fontstr) {
        void
        kpress(XKeyEvent * e) {
                char buf[sizeof text];
       -        int i, num, off;
       +        int i, num;
                unsigned int len;
                KeySym ksym;
        
                len = strlen(text);
       -        buf[0] = '\0';
                num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
                if(IsKeypadKey(ksym)) {
                        if(ksym == XK_KP_Enter)
       t@@ -451,8 +428,8 @@ kpress(XKeyEvent * e) {
                                {
                                        FILE *fp;
                                        char *s;
       -                                if(!(fp = (FILE*)popen("sselp", "r")))
       -                                        eprint("dmenu: Could not popen sselp\n");
       +                                if(!(fp = popen("sselp", "r")))
       +                                        eprint("dmenu: cannot popen sselp\n");
                                        s = fgets(buf, sizeof buf, fp);
                                        pclose(fp);
                                        if(s == NULL)
       t@@ -470,25 +447,21 @@ kpress(XKeyEvent * e) {
                        if(num && !iscntrl((int) buf[0])) {
                                memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
                                memcpy(text + cursor, buf, num);
       -                        cursor+=num;
       +                        cursor += num;
                                match(text);
                        }
                        break;
                case XK_BackSpace:
                        if(cursor > 0) {
       -                        off = 1;
       -                        while(cursor > off && !IS_UTF8_1ST_CHAR(text[cursor - off]))
       -                                off++;
       -                        memmove(text + cursor - off, text + cursor, sizeof text - cursor + off);
       -                        cursor -= off;
       +                        for(i = 1; cursor - i > 0 && !IS_UTF8_1ST_CHAR(text[cursor - i]); i++);
       +                        memmove(text + cursor - i, text + cursor, sizeof text - cursor + i);
       +                        cursor -= i;
                                match(text);
                        }
                        break;
                case XK_Delete:
       -                off = 1;
       -                while(cursor + off < sizeof text - 1 && !IS_UTF8_1ST_CHAR(text[cursor + off]))
       -                        off++;
       -                memmove(text + cursor, text + cursor + off, sizeof text - cursor);
       +                for(i = 1; cursor + i < len && !IS_UTF8_1ST_CHAR(text[cursor + i]); i++);
       +                memmove(text + cursor, text + cursor + i, sizeof text - cursor);
                        match(text);
                        break;
                case XK_End:
       t@@ -631,13 +604,13 @@ readstdin(void) {
                        if(buf[len-1] == '\n')
                                buf[--len] = '\0';
                        if(!(p = strdup(buf)))
       -                        eprint("fatal: could not strdup() %u bytes\n", len);
       +                        eprint("dmenu: cannot strdup %u bytes\n", len);
                        if(max < len || !maxname) {
                                maxname = p;
                                max = len;
                        }
       -                if(!(new = (Item *)malloc(sizeof(Item))))
       -                        eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
       +                if(!(new = malloc(sizeof *new)))
       +                        eprint("dmenu: cannot malloc %u bytes\n", sizeof *new);
                        new->next = new->left = new->right = NULL;
                        new->text = p;
                        if(!i)
       t@@ -785,8 +758,9 @@ main(int argc, char *argv[]) {
                                if(++i < argc) parent = atoi(argv[i]);
                        }
                        else if(!strcmp(argv[i], "-l")) {
       -                        calcoffsets = calcoffsetsv;
                                if(++i < argc) lines = atoi(argv[i]);
       +                        if(lines > 0)
       +                                calcoffsets = calcoffsetsv;
                        }
                        else if(!strcmp(argv[i], "-fn")) {
                                if(++i < argc) font = argv[i];
       t@@ -812,7 +786,7 @@ main(int argc, char *argv[]) {
                                eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
                                       "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
                if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
       -                fprintf(stderr, "warning: no locale support\n");
       +                fprintf(stderr, "dmenu: warning: no locale support\n");
                if(!(dpy = XOpenDisplay(NULL)))
                        eprint("dmenu: cannot open display\n");
                screen = DefaultScreen(dpy);