Adding a more flexible fontstring handling, shortcuts and a zoom function.

diff --git a/config.def.h b/config.def.h
index 5c4c518..67b1316 100644 (file)
--- a/config.def.h
+++ b/config.def.h
@@ -1,4 +1,8 @@
 
 

+/*
+ * Do not include the »pixelsize« parameter in your font definition. It is
+ * used to calculate zooming.
+ */

 #define FONT "Liberation Mono:pixelsize=12:antialias=false:autohint=false"
 
 /* Space in pixels around the terminal buffer */
 #define FONT "Liberation Mono:pixelsize=12:antialias=false:autohint=false"
 
 /* Space in pixels around the terminal buffer */


@@ -73,6 +77,15 @@ static Key key[] = {
        { XK_F12,       XK_NO_MOD, "\033[24~" },
 };
 
        { XK_F12,       XK_NO_MOD, "\033[24~" },
 };
 

+/* Internal shortcuts. */
+#define MODKEY Mod1Mask
+
+static Shortcut shortcuts[] = {
+       /* modifier             key             function        argument */
+       { MODKEY|ShiftMask,     XK_Prior,       xzoom,          {.i = +1} },
+       { MODKEY|ShiftMask,     XK_Next,        xzoom,          {.i = -1} },
+};
+

 /* Set TERM to this */
 #define TNAME "st-256color"
 
 /* Set TERM to this */
 #define TNAME "st-256color"
 


@@ -81,3 +94,4 @@ static Key key[] = {
 #define TRIPLECLICK_TIMEOUT (2*DOUBLECLICK_TIMEOUT)
 
 #define TAB 8
 #define TRIPLECLICK_TIMEOUT (2*DOUBLECLICK_TIMEOUT)
 
 #define TAB 8

+

diff --git a/config.mk b/config.mk
index 3cd714f..e45fc2d 100644 (file)
--- a/config.mk
+++ b/config.mk
@@ -16,8 +16,8 @@ LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lutil -lXext -lXft -lfontconfig
 
 # flags
 CPPFLAGS = -DVERSION=\"${VERSION}\"
 
 # flags
 CPPFLAGS = -DVERSION=\"${VERSION}\"

-CFLAGS += -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
-LDFLAGS += -s ${LIBS}
+CFLAGS += -g -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+LDFLAGS += -g ${LIBS}

 
 # compiler and linker
 CC ?= cc
 
 # compiler and linker
 CC ?= cc

diff --git a/st.c b/st.c
index f54e4d5..5703e96 100644 (file)
--- a/st.c
+++ b/st.c
@@ -60,6 +60,8 @@
 
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 

+/* macros */
+#define CLEANMASK(mask) (mask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))

 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
 #define MAX(a, b)  ((a) < (b) ? (b) : (a))
 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
 #define MAX(a, b)  ((a) < (b) ? (b) : (a))


@@ -238,6 +240,24 @@ typedef struct {
        struct timeval tclick2;
 } Selection;
 
        struct timeval tclick2;
 } Selection;
 

+typedef union {
+       int i;
+       unsigned int ui;
+       float f;
+       const void *v;
+} Arg;
+
+typedef struct {
+       unsigned int mod;
+       KeySym keysym;
+       void (*func)(const Arg *);
+       const Arg arg;
+} Shortcut;
+
+/* function definitions used in config.h */
+static void xzoom(const Arg *);
+
+/* Config.h for applying patches and the configuration. */

 #include "config.h"
 
 /* Font structure */
 #include "config.h"
 
 /* Font structure */


@@ -321,6 +341,7 @@ static void unmap(XEvent *);
 static char *kmap(KeySym, uint);
 static void kpress(XEvent *);
 static void cmessage(XEvent *);
 static char *kmap(KeySym, uint);
 static void kpress(XEvent *);
 static void cmessage(XEvent *);

+static void cresize(int width, int height);

 static void resize(XEvent *);
 static void focus(XEvent *);
 static void brelease(XEvent *);
 static void resize(XEvent *);
 static void focus(XEvent *);
 static void brelease(XEvent *);


@@ -345,7 +366,6 @@ static ssize_t xwrite(int, char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
 static void *xcalloc(size_t nmemb, size_t size);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
 static void *xcalloc(size_t nmemb, size_t size);

-static char *smstrcat(char *, ...);

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


@@ -381,6 +401,8 @@ static char *opt_embed = NULL;
 static char *opt_class = NULL;
 static char *opt_font = NULL;
 
 static char *opt_class = NULL;
 static char *opt_font = NULL;
 

+static char *usedfont = NULL;
+static int usedfontsize = 0;

 
 ssize_t
 xwrite(int fd, char *s, size_t len) {
 
 ssize_t
 xwrite(int fd, char *s, size_t len) {


@@ -424,44 +446,6 @@ xcalloc(size_t nmemb, size_t size) {
        return p;
 }
 
        return p;
 }
 

-char *
-smstrcat(char *src, ...)
-{
-       va_list fmtargs;
-       char *ret, *p, *v;
-       int len, slen, flen;
-
-       len = slen = strlen(src);
-
-       va_start(fmtargs, src);
-       for(;;) {
-               v = va_arg(fmtargs, char *);
-               if(v == NULL)
-                       break;
-               len += strlen(v);
-       }
-       va_end(fmtargs);
-
-       p = ret = xmalloc(len+1);
-       memmove(p, src, slen);
-       p += slen;
-
-       va_start(fmtargs, src);
-       for(;;) {
-               v = va_arg(fmtargs, char *);
-               if(v == NULL)
-                       break;
-               flen = strlen(v);
-               memmove(p, v, flen);
-               p += flen;
-       }
-       va_end(fmtargs);
-
-       ret[len] = '\0';
-
-       return ret;
-}
-

 int
 utf8decode(char *s, long *u) {
        uchar c;
 int
 utf8decode(char *s, long *u) {
        uchar c;


@@ -2107,7 +2091,8 @@ tresize(int col, int row) {
                        *bp = 1;
        }
        /* update terminal size */
                        *bp = 1;
        }
        /* update terminal size */

-       term.col = col, term.row = row;
+       term.col = col;
+       term.row = row;

        /* make use of the LIMIT in tmoveto */
        tmoveto(term.c.x, term.c.y);
        /* reset scrolling region */
        /* make use of the LIMIT in tmoveto */
        tmoveto(term.c.x, term.c.y);
        /* reset scrolling region */


@@ -2207,22 +2192,17 @@ xhints(void) {
        XFree(sizeh);
 }
 
        XFree(sizeh);
 }
 

-void
-xinitfont(Font *f, char *fontstr) {
-       FcPattern *pattern, *match;
+int
+xloadfont(Font *f, FcPattern *pattern) {
+       FcPattern *match;

        FcResult result;
 
        FcResult result;
 

-       pattern = FcNameParse((FcChar8 *)fontstr);
-       if(!pattern)
-               die("st: can't open font %s\n", fontstr);
-

        match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
        match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);

-       FcPatternDestroy(pattern);

        if(!match)
        if(!match)

-               die("st: can't open font %s\n", fontstr);
+               return 1;

        if(!(f->xft_set = XftFontOpenPattern(xw.dpy, match))) {
                FcPatternDestroy(match);
        if(!(f->xft_set = XftFontOpenPattern(xw.dpy, match))) {
                FcPatternDestroy(match);

-               die("st: can't open font %s.\n", fontstr);
+               return 1;

        }
 
        f->ascent = f->xft_set->ascent;
        }
 
        f->ascent = f->xft_set->ascent;


@@ -2232,27 +2212,68 @@ xinitfont(Font *f, char *fontstr) {
 
        f->height = f->xft_set->height;
        f->width = f->lbearing + f->rbearing;
 
        f->height = f->xft_set->height;
        f->width = f->lbearing + f->rbearing;

+
+       return 0;

 }
 
 void
 }
 
 void

-initfonts(char *fontstr) {
-       char *fstr;
+xloadfonts(char *fontstr, int fontsize) {
+       FcPattern *pattern;
+       FcResult result;
+       double fontval;
+
+       pattern = FcNameParse((FcChar8 *)fontstr);
+       if(!pattern)
+               die("st: can't open font %s\n", fontstr);
+
+       if(fontsize > 0) {
+               FcPatternDel(pattern, FC_PIXEL_SIZE);
+               FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+               usedfontsize = fontsize;
+       } else {
+               result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
+               if(result == FcResultMatch) {
+                       usedfontsize = (int)fontval;
+               } else {
+                       /*
+                        * Default font size is 12, if none given. This is to
+                        * have a known usedfontsize value.
+                        */
+                       FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+                       usedfontsize = 12;
+               }
+       }

 
 

-       xinitfont(&dc.font, fontstr);
+       if(xloadfont(&dc.font, pattern))
+               die("st: can't open font %s\n", fontstr);
+
+       /* Setting character width and height. */

        xw.cw = dc.font.width;
        xw.ch = dc.font.height;
 
        xw.cw = dc.font.width;
        xw.ch = dc.font.height;
 

-       fstr = smstrcat(fontstr, ":weight=bold", NULL);
-       xinitfont(&dc.bfont, fstr);
-       free(fstr);
+       FcPatternDel(pattern, FC_WEIGHT);
+       FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+       if(xloadfont(&dc.bfont, pattern))
+               die("st: can't open font %s\n", fontstr);

 
 

-       fstr = smstrcat(fontstr, ":slant=italic,oblique", NULL);
-       xinitfont(&dc.ifont, fstr);
-       free(fstr);
+       FcPatternDel(pattern, FC_SLANT);
+       FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+       if(xloadfont(&dc.ibfont, pattern))
+               die("st: can't open font %s\n", fontstr);

 
 

-       fstr = smstrcat(fontstr, ":weight=bold:slant=italic,oblique", NULL);
-       xinitfont(&dc.ibfont, fstr);
-       free(fstr);
+       FcPatternDel(pattern, FC_WEIGHT);
+       if(xloadfont(&dc.ifont, pattern))
+               die("st: can't open font %s\n", fontstr);
+
+       FcPatternDestroy(pattern);
+}
+
+void
+xzoom(const Arg *arg)
+{
+       xloadfonts(usedfont, usedfontsize + arg->i);
+       cresize(0, 0);
+       draw();

 }
 
 void
 }
 
 void


@@ -2268,7 +2289,8 @@ xinit(void) {
        xw.vis = XDefaultVisual(xw.dpy, xw.scr);
 
        /* font */
        xw.vis = XDefaultVisual(xw.dpy, xw.scr);
 
        /* font */

-       initfonts((opt_font != NULL)? opt_font : FONT);
+       usedfont = (opt_font == NULL)? FONT : opt_font;
+       xloadfonts(usedfont, 0);

 
        /* colors */
        xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
 
        /* colors */
        xw.cmap = XDefaultColormap(xw.dpy, xw.scr);


@@ -2604,11 +2626,8 @@ void
 kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
 kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;

-       char buf[32];
-       char *customkey;
-       int len;
-       int meta;
-       int shift;
+       char buf[32], *customkey;
+       int len, meta, shift, i;

        Status status;
 
        if (IS_SET(MODE_KBDLOCK))
        Status status;
 
        if (IS_SET(MODE_KBDLOCK))


@@ -2618,7 +2637,17 @@ kpress(XEvent *ev) {
        shift = e->state & ShiftMask;
        len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
 
        shift = e->state & ShiftMask;
        len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
 

-       /* 1. custom keys from config.h */
+       /* 1. shortcuts */
+       for(i = 0; i < LEN(shortcuts); i++) {
+               if((ksym == shortcuts[i].keysym)
+                               && (CLEANMASK(shortcuts[i].mod) == \
+                                       CLEANMASK(e->state))
+                               && shortcuts[i].func) {
+                       shortcuts[i].func(&(shortcuts[i].arg));
+               }
+       }
+
+       /* 2. custom keys from config.h */

        if((customkey = kmap(ksym, e->state))) {
                ttywrite(customkey, strlen(customkey));
        /* 2. hardcoded (overrides X lookup) */
        if((customkey = kmap(ksym, e->state))) {
                ttywrite(customkey, strlen(customkey));
        /* 2. hardcoded (overrides X lookup) */


@@ -2676,14 +2705,15 @@ cmessage(XEvent *e) {
 }
 
 void
 }
 
 void

-resize(XEvent *e) {
+cresize(int width, int height)
+{

        int col, row;
 
        int col, row;
 

-       if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
-               return;
+       if(width != 0)
+               xw.w = width;
+       if(height != 0)
+               xw.h = height;

 
 

-       xw.w = e->xconfigure.width;
-       xw.h = e->xconfigure.height;

        col = (xw.w - 2*BORDER) / xw.cw;
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)
        col = (xw.w - 2*BORDER) / xw.cw;
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)


@@ -2694,6 +2724,14 @@ resize(XEvent *e) {
        ttyresize();
 }
 
        ttyresize();
 }
 

+void
+resize(XEvent *e) {
+       if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
+               return;
+
+       cresize(e->xconfigure.width, e->xconfigure.height);
+}
+

 void
 run(void) {
        XEvent ev;
 void
 run(void) {
        XEvent ev;