From ed7c8e8d02c02bdbff1e88a6d8d1419f39af48ad Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Tue, 30 Sep 2003 17:47:42 +0000
Subject: Initial import.

---
 src/libdraw/stringsubfont.c | 65 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 src/libdraw/stringsubfont.c

(limited to 'src/libdraw/stringsubfont.c')

diff --git a/src/libdraw/stringsubfont.c b/src/libdraw/stringsubfont.c
new file mode 100644
index 00000000..cc834732
--- /dev/null
+++ b/src/libdraw/stringsubfont.c
@@ -0,0 +1,65 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+
+Point
+stringsubfont(Image *b, Point p, Image *color, Subfont *f, char *cs)
+{
+	int w, width;
+	uchar *s;
+	Rune c;
+	Fontchar *i;
+
+	s = (uchar*)cs;
+	for(; c=*s; p.x+=width){
+		width = 0;
+		if(c < Runeself)
+			s++;
+		else{
+			w = chartorune(&c, (char*)s);
+			if(w == 0){
+				s++;
+				continue;
+			}
+			s += w;
+		}
+		if(c >= f->n)
+			continue;
+		i = f->info+c;
+		width = i->width;
+		draw(b, Rect(p.x+i->left, p.y+i->top, p.x+i->left+(i[1].x-i[0].x), p.y+i->bottom),
+			color, f->bits, Pt(i->x, i->top));
+	}
+	return p;
+}
+
+Point
+strsubfontwidth(Subfont *f, char *cs)
+{
+	Rune c;
+	Point p;
+	uchar *s;
+	Fontchar *i;
+	int w, width;
+
+	p = Pt(0, f->height);
+	s = (uchar*)cs;
+	for(; c=*s; p.x+=width){
+		width = 0;
+		if(c < Runeself)
+			s++;
+		else{
+			w = chartorune(&c, (char*)s);
+			if(w == 0){
+				s++;
+				continue;
+			}
+			s += w;
+		}
+		if(c >= f->n)
+			continue;
+		i = f->info+c;
+		width = i->width;
+	}
+	return p;
+}
-- 
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