168 lines
4.4 KiB
Diff
168 lines
4.4 KiB
Diff
From ba724004c6a368e452114f7dc147a9978fe0f3b4 Mon Sep 17 00:00:00 2001
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From: Kirill Bugaev <kirill.bugaev87@gmail.com>
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Date: Tue, 16 Apr 2019 04:31:30 +0800
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Subject: [PATCH] This patch allows to add spare font besides default. Some
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glyphs can be not present in default font. For this glyphs st uses
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font-config and try to find them in font cache first. This patch append fonts
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defined in font2 variable to the beginning of font cache. So they will be
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used first for glyphs that absent in default font.
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---
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config.def.h | 6 +++
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x.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++
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2 files changed, 107 insertions(+)
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diff --git a/config.def.h b/config.def.h
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index 482901e..676719e 100644
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--- a/config.def.h
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+++ b/config.def.h
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@@ -6,6 +6,12 @@
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* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
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*/
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static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
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+/* Spare fonts */
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+static char *font2[] = {
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+/* "Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */
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+/* "Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true", */
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+};
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+
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static int borderpx = 2;
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/*
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diff --git a/x.c b/x.c
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index 5828a3b..d37e59d 100644
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--- a/x.c
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+++ b/x.c
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@@ -149,6 +149,8 @@ static void xhints(void);
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static int xloadcolor(int, const char *, Color *);
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static int xloadfont(Font *, FcPattern *);
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static void xloadfonts(char *, double);
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+static int xloadsparefont(FcPattern *, int);
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+static void xloadsparefonts(void);
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static void xunloadfont(Font *);
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static void xunloadfonts(void);
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static void xsetenv(void);
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@@ -296,6 +298,7 @@ zoomabs(const Arg *arg)
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{
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xunloadfonts();
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xloadfonts(usedfont, arg->f);
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+ xloadsparefonts();
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cresize(0, 0);
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redraw();
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xhints();
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@@ -977,6 +980,101 @@ xloadfonts(char *fontstr, double fontsize)
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FcPatternDestroy(pattern);
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}
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+int
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+xloadsparefont(FcPattern *pattern, int flags)
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+{
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+ FcPattern *match;
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+ FcResult result;
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+
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+ match = FcFontMatch(NULL, pattern, &result);
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+ if (!match) {
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+ return 1;
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+ }
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+
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+ if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) {
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+ FcPatternDestroy(match);
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+ return 1;
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+ }
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+
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+ frc[frclen].flags = flags;
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+ /* Believe U+0000 glyph will present in each default font */
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+ frc[frclen].unicodep = 0;
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+ frclen++;
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+
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+ return 0;
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+}
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+
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+void
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+xloadsparefonts(void)
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+{
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+ FcPattern *pattern;
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+ double sizeshift, fontval;
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+ int fc;
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+ char **fp;
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+
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+ if (frclen != 0)
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+ die("can't embed spare fonts. cache isn't empty");
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+
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+ /* Calculate count of spare fonts */
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+ fc = sizeof(font2) / sizeof(*font2);
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+ if (fc == 0)
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+ return;
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+
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+ /* Allocate memory for cache entries. */
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+ if (frccap < 4 * fc) {
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+ frccap += 4 * fc - frccap;
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+ frc = xrealloc(frc, frccap * sizeof(Fontcache));
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+ }
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+
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+ for (fp = font2; fp - font2 < fc; ++fp) {
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+
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+ if (**fp == '-')
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+ pattern = XftXlfdParse(*fp, False, False);
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+ else
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+ pattern = FcNameParse((FcChar8 *)*fp);
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+
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+ if (!pattern)
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+ die("can't open spare font %s\n", *fp);
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+
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+ if (defaultfontsize > 0) {
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+ sizeshift = usedfontsize - defaultfontsize;
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+ if (sizeshift != 0 &&
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+ FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
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+ FcResultMatch) {
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+ fontval += sizeshift;
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+ FcPatternDel(pattern, FC_PIXEL_SIZE);
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+ FcPatternDel(pattern, FC_SIZE);
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+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval);
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+ }
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+ }
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+
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+ FcPatternAddBool(pattern, FC_SCALABLE, 1);
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+
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+ FcConfigSubstitute(NULL, pattern, FcMatchPattern);
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+ XftDefaultSubstitute(xw.dpy, xw.scr, pattern);
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+
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+ if (xloadsparefont(pattern, FRC_NORMAL))
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+ die("can't open spare font %s\n", *fp);
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+
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+ FcPatternDel(pattern, FC_SLANT);
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+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
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+ if (xloadsparefont(pattern, FRC_ITALIC))
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+ die("can't open spare font %s\n", *fp);
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+
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+ FcPatternDel(pattern, FC_WEIGHT);
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+ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
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+ if (xloadsparefont(pattern, FRC_ITALICBOLD))
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+ die("can't open spare font %s\n", *fp);
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+
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+ FcPatternDel(pattern, FC_SLANT);
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+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
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+ if (xloadsparefont(pattern, FRC_BOLD))
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+ die("can't open spare font %s\n", *fp);
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+
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+ FcPatternDestroy(pattern);
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+ }
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+}
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+
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void
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xunloadfont(Font *f)
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{
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@@ -1057,6 +1155,9 @@ xinit(int cols, int rows)
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usedfont = (opt_font == NULL)? font : opt_font;
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xloadfonts(usedfont, 0);
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+ /* spare fonts */
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+ xloadsparefonts();
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+
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/* colors */
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xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
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xloadcols();
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--
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2.21.0
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