1 files changed, 55 insertions, 0 deletions
diff --git a/src/libdraw/mkfont.c b/src/libdraw/mkfont.c
new file mode 100644
index 00000000..df6b0ec2
--- /dev/null
+++ b/src/libdraw/mkfont.c
@@ -0,0 +1,55 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+
+/*
+ * Cobble fake font using existing subfont
+ */
+Font*
+mkfont(Subfont *subfont, Rune min)
+{
+	Font *font;
+	Cachefont *c;
+
+	font = malloc(sizeof(Font));
+	if(font == 0)
+		return 0;
+	memset(font, 0, sizeof(Font));
+	font->display = subfont->bits->display;
+	font->name = strdup("<synthetic>");
+	font->ncache = NFCACHE+NFLOOK;
+	font->nsubf = NFSUBF;
+	font->cache = malloc(font->ncache * sizeof(font->cache[0]));
+	font->subf = malloc(font->nsubf * sizeof(font->subf[0]));
+	if(font->name==0 || font->cache==0 || font->subf==0){
+    Err:
+		free(font->name);
+		free(font->cache);
+		free(font->subf);
+		free(font->sub);
+		free(font);
+		return 0;
+	}
+	memset(font->cache, 0, font->ncache*sizeof(font->cache[0]));
+	memset(font->subf, 0, font->nsubf*sizeof(font->subf[0]));
+	font->height = subfont->height;
+	font->ascent = subfont->ascent;
+	font->age = 1;
+	font->sub = malloc(sizeof(Cachefont*));
+	if(font->sub == 0)
+		goto Err;
+	c = malloc(sizeof(Cachefont));
+	if(c == 0)
+		goto Err;
+	font->nsub = 1;
+	font->sub[0] = c;
+	c->min = min;
+	c->max = min+subfont->n-1;
+	c->offset = 0;
+	c->name = 0;	/* noticed by freeup() and agefont() */
+	c->subfontname = 0;
+	font->subf[0].age = 0;
+	font->subf[0].cf = c;
+	font->subf[0].f = subfont;
+	return font;
+}