Measure the single advance width with a heuristic method

[st.git] / st.c

diff --git a/st.c b/st.c
index 2bbf484..ca126d7 100644 (file)
--- a/st.c
+++ b/st.c
@@ -68,6 +68,7 @@ char *argv0;
 #define LEN(a)                 (sizeof(a) / sizeof(a)[0])
 #define DEFAULT(a, b)          (a) = (a) ? (a) : (b)
 #define BETWEEN(x, a, b)       ((a) <= (x) && (x) <= (b))
 #define LEN(a)                 (sizeof(a) / sizeof(a)[0])
 #define DEFAULT(a, b)          (a) = (a) ? (a) : (b)
 #define BETWEEN(x, a, b)       ((a) <= (x) && (x) <= (b))

+#define DIVCEIL(n, d)          (((n) + ((d) - 1)) / (d))

 #define ISCONTROLC0(c)         (BETWEEN(c, 0, 0x1f) || (c) == '\177')
 #define ISCONTROLC1(c)         (BETWEEN(c, 0x80, 0x9f))
 #define ISCONTROL(c)           (ISCONTROLC0(c) || ISCONTROLC1(c))
 #define ISCONTROLC0(c)         (BETWEEN(c, 0, 0x1f) || (c) == '\177')
 #define ISCONTROLC1(c)         (BETWEEN(c, 0x80, 0x9f))
 #define ISCONTROL(c)           (ISCONTROLC0(c) || ISCONTROLC1(c))


@@ -439,7 +440,6 @@ static void xresettitle(void);
 static void xsetpointermotion(int);
 static void xseturgency(int);
 static void xsetsel(char *, Time);
 static void xsetpointermotion(int);
 static void xseturgency(int);
 static void xsetsel(char *, Time);

-static void xtermclear(int, int, int, int);

 static void xunloadfont(Font *);
 static void xunloadfonts(void);
 static void xresize(int, int);
 static void xunloadfont(Font *);
 static void xunloadfonts(void);
 static void xresize(int, int);


@@ -486,7 +486,6 @@ static void *xrealloc(void *, size_t);
 static char *xstrdup(char *);
 
 static void usage(void);
 static char *xstrdup(char *);
 
 static void usage(void);

-static void version(void);

 
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,
 
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,


@@ -524,14 +523,15 @@ static int cmdfd;
 static pid_t pid;
 static Selection sel;
 static int iofd = 1;
 static pid_t pid;
 static Selection sel;
 static int iofd = 1;

-static char **opt_cmd = NULL;
-static char *opt_io = NULL;
-static char *opt_title = NULL;
-static char *opt_embed = NULL;
+static char **opt_cmd  = NULL;

 static char *opt_class = NULL;
 static char *opt_class = NULL;

-static char *opt_font = NULL;
-static char *opt_line = NULL;
-static int oldbutton = 3; /* button event on startup: 3 = release */
+static char *opt_embed = NULL;
+static char *opt_font  = NULL;
+static char *opt_io    = NULL;
+static char *opt_line  = NULL;
+static char *opt_name  = NULL;
+static char *opt_title = NULL;
+static int oldbutton   = 3; /* button event on startup: 3 = release */

 
 static char *usedfont = NULL;
 static double usedfontsize = 0;
 
 static char *usedfont = NULL;
 static double usedfontsize = 0;


@@ -1441,8 +1441,6 @@ ttynew(void)
        if (openpty(&m, &s, NULL, NULL, &w) < 0)
                die("openpty failed: %s\n", strerror(errno));
 
        if (openpty(&m, &s, NULL, NULL, &w) < 0)
                die("openpty failed: %s\n", strerror(errno));
 

-       ttyresize();
-

        switch (pid = fork()) {
        case -1:
                die("fork failed\n");
        switch (pid = fork()) {
        case -1:
                die("fork failed\n");


@@ -3215,17 +3213,6 @@ xsetcolorname(int x, const char *name)
        return 0;
 }
 
        return 0;
 }
 

-void
-xtermclear(int col1, int row1, int col2, int row2)
-{
-       XftDrawRect(xw.draw,
-                       &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
-                       borderpx + col1 * xw.cw,
-                       borderpx + row1 * xw.ch,
-                       (col2-col1+1) * xw.cw,
-                       (row2-row1+1) * xw.ch);
-}
-

 /*
  * Absolute coordinates.
  */
 /*
  * Absolute coordinates.
  */


@@ -3240,7 +3227,8 @@ xclear(int x1, int y1, int x2, int y2)
 void
 xhints(void)
 {
 void
 xhints(void)
 {

-       XClassHint class = {termname, opt_class ? opt_class : termname};
+       XClassHint class = {opt_name ? opt_name : termname,
+                           opt_class ? opt_class : termname};

        XWMHints wm = {.flags = InputHint, .input = 1};
        XSizeHints *sizeh = NULL;
 
        XWMHints wm = {.flags = InputHint, .input = 1};
        XSizeHints *sizeh = NULL;
 


@@ -3290,6 +3278,7 @@ xloadfont(Font *f, FcPattern *pattern)
 {
        FcPattern *match;
        FcResult result;
 {
        FcPattern *match;
        FcResult result;

+       XGlyphInfo extents;

 
        match = FcFontMatch(NULL, pattern, &result);
        if (!match)
 
        match = FcFontMatch(NULL, pattern, &result);
        if (!match)


@@ -3300,6 +3289,10 @@ xloadfont(Font *f, FcPattern *pattern)
                return 1;
        }
 
                return 1;
        }
 

+       XftTextExtentsUtf8(xw.dpy, f->match,
+               (const FcChar8 *) ascii_printable,
+               LEN(ascii_printable), &extents);
+

        f->set = NULL;
        f->pattern = FcPatternDuplicate(pattern);
 
        f->set = NULL;
        f->pattern = FcPatternDuplicate(pattern);
 


@@ -3309,7 +3302,7 @@ xloadfont(Font *f, FcPattern *pattern)
        f->rbearing = f->match->max_advance_width;
 
        f->height = f->ascent + f->descent;
        f->rbearing = f->match->max_advance_width;
 
        f->height = f->ascent + f->descent;

-       f->width = f->lbearing + f->rbearing;
+       f->width = DIVCEIL(extents.xOff, LEN(ascii_printable));

 
        return 0;
 }
 
        return 0;
 }


@@ -3426,6 +3419,7 @@ xzoomabs(const Arg *arg)
        xunloadfonts();
        xloadfonts(usedfont, arg->f);
        cresize(0, 0);
        xunloadfonts();
        xloadfonts(usedfont, arg->f);
        cresize(0, 0);

+       ttyresize();

        redraw();
        xhints();
 }
        redraw();
        xhints();
 }


@@ -3983,7 +3977,6 @@ drawregion(int x1, int y1, int x2, int y2)
                if (!term.dirty[y])
                        continue;
 
                if (!term.dirty[y])
                        continue;
 

-               xtermclear(0, y, term.col, y);

                term.dirty[y] = 0;
 
                specs = term.specbuf;
                term.dirty[y] = 0;
 
                specs = term.specbuf;


@@ -4209,7 +4202,6 @@ cresize(int width, int height)
 
        tresize(col, row);
        xresize(col, row);
 
        tresize(col, row);
        xresize(col, row);

-       ttyresize();

 }
 
 void
 }
 
 void


@@ -4219,6 +4211,7 @@ resize(XEvent *e)
                return;
 
        cresize(e->xconfigure.width, e->xconfigure.height);
                return;
 
        cresize(e->xconfigure.width, e->xconfigure.height);

+       ttyresize();

 }
 
 void
 }
 
 void


@@ -4247,8 +4240,9 @@ run(void)
                }
        } while (ev.type != MapNotify);
 
                }
        } while (ev.type != MapNotify);
 

-       ttynew();

        cresize(w, h);
        cresize(w, h);

+       ttynew();
+       ttyresize();

 
        clock_gettime(CLOCK_MONOTONIC, &last);
        lastblink = last;
 
        clock_gettime(CLOCK_MONOTONIC, &last);
        lastblink = last;


@@ -4333,18 +4327,13 @@ void
 usage(void)
 {
        die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"
 usage(void)
 {
        die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"

-       " [-o file] [-T title]\n"
-       "          [-t title] [-w windowid] [[-e] command [args ...]]\n"
-       "       %s [-aiv] [-c class] [-f font] [-g geometry]"
-       " [-o file] [-T title]\n"
-       "          [-t title] [-w windowid] -l line [stty_args ...]\n",
-       argv0, argv0);
-}
-
-void
-version(void)
-{
-       die("%s " VERSION " (c) 2010-2016 st engineers\n", argv0);
+           " [-n name] [-o file]\n"
+           "          [-T title] [-t title] [-w windowid]"
+           " [[-e] command [args ...]]\n"
+           "       %s [-aiv] [-c class] [-f font] [-g geometry]"
+           " [-n name] [-o file]\n"
+           "          [-T title] [-t title] [-w windowid] -l line"
+           " [stty_args ...]\n", argv0, argv0);

 }
 
 int
 }
 
 int


@@ -4383,6 +4372,9 @@ main(int argc, char *argv[])
        case 'l':
                opt_line = EARGF(usage());
                break;
        case 'l':
                opt_line = EARGF(usage());
                break;

+       case 'n':
+               opt_name = EARGF(usage());
+               break;

        case 't':
        case 'T':
                opt_title = EARGF(usage());
        case 't':
        case 'T':
                opt_title = EARGF(usage());


@@ -4391,7 +4383,7 @@ main(int argc, char *argv[])
                opt_embed = EARGF(usage());
                break;
        case 'v':
                opt_embed = EARGF(usage());
                break;
        case 'v':

-               version();
+               die("%s " VERSION " (c) 2010-2016 st engineers\n", argv0);

                break;
        default:
                usage();
                break;
        default:
                usage();