[hackers] [st] Adding a more flexible fontstring handling, shortcuts and a zoom function. || Christoph Lohmann
changeset: 369:32b780b3f648
user: Christoph Lohmann <20h_AT_r-36.net>
date: Sun Oct 28 13:25:53 2012 +0100
files: config.def.h config.mk st.c
description:
Adding a more flexible fontstring handling, shortcuts and a zoom function.
diff -r 8804f302e638 -r 32b780b3f648 config.def.h
--- a/config.def.h Sun Oct 28 06:54:08 2012 +0100
+++ b/config.def.h Sun Oct 28 13:25:53 2012 +0100
_AT_@ -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 */
_AT_@ -73,6 +77,15 @@
{ 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"
_AT_@ -81,3 +94,4 @@
#define TRIPLECLICK_TIMEOUT (2*DOUBLECLICK_TIMEOUT)
#define TAB 8
+
diff -r 8804f302e638 -r 32b780b3f648 config.mk
--- a/config.mk Sun Oct 28 06:54:08 2012 +0100
+++ b/config.mk Sun Oct 28 13:25:53 2012 +0100
_AT_@ -16,8 +16,8 @@
# 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
diff -r 8804f302e638 -r 32b780b3f648 st.c
--- a/st.c Sun Oct 28 06:54:08 2012 +0100
+++ b/st.c Sun Oct 28 13:25:53 2012 +0100
_AT_@ -60,6 +60,8 @@
#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))
_AT_@ -238,6 +240,24 @@
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 */
_AT_@ -321,6 +341,7 @@
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 *);
_AT_@ -345,7 +366,6 @@
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,
_AT_@ -381,6 +401,8 @@
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) {
_AT_@ -424,44 +446,6 @@
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;
_AT_@ -2107,7 +2091,8 @@
*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 */
_AT_@ -2207,22 +2192,17 @@
XFree(sizeh);
}
-void
-xinitfont(Font *f, char *fontstr) {
- FcPattern *pattern, *match;
+int
+xloadfont(Font *f, FcPattern *pattern) {
+ FcPattern *match;
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);
- FcPatternDestroy(pattern);
if(!match)
- die("st: can't open font %s\n", fontstr);
+ return 1;
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;
_AT_@ -2232,27 +2212,68 @@
f->height = f->xft_set->height;
f->width = f->lbearing + f->rbearing;
+
+ return 0;
}
void
-initfonts(char *fontstr) {
- char *fstr;
+xloadfonts(char *fontstr, int fontsize) {
+ FcPattern *pattern;
+ FcResult result;
+ double fontval;
- xinitfont(&dc.font, fontstr);
+ 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;
+ }
+ }
+
+ 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;
- 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
_AT_@ -2268,7 +2289,8 @@
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);
_AT_@ -2604,11 +2626,8 @@
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))
_AT_@ -2618,7 +2637,17 @@
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) */
_AT_@ -2676,14 +2705,15 @@
}
void
-resize(XEvent *e) {
+cresize(int width, int height)
+{
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)
_AT_@ -2695,6 +2725,14 @@
}
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;
fd_set rfd;
Received on Sun Oct 28 2012 - 13:39:04 CET
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: Sun Oct 28 2012 - 13:48:26 CET