X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/5b502ae807b1e98a91644f179863484c61aedb4c..a9af91d0a74a53c3a4d1f2da740193ac4a374983:/drawing.c

diff --git a/drawing.c b/drawing.c
index b582b8f..4cbb46d 100644
--- a/drawing.c
+++ b/drawing.c
@@ -127,6 +127,39 @@ void end_draw(drawing *dr)
     dr->api->end_draw(dr->handle);
 }
 
+char *text_fallback(drawing *dr, const char *const *strings, int nstrings)
+{
+    int i;
+
+    /*
+     * If the drawing implementation provides one of these, use it.
+     */
+    if (dr && dr->api->text_fallback)
+	return dr->api->text_fallback(dr->handle, strings, nstrings);
+
+    /*
+     * Otherwise, do the simple thing and just pick the first string
+     * that fits in plain ASCII. It will then need no translation
+     * out of UTF-8.
+     */
+    for (i = 0; i < nstrings; i++) {
+	const char *p;
+
+	for (p = strings[i]; *p; p++)
+	    if (*p & 0x80)
+		break;
+	if (!*p)
+	    return dupstr(strings[i]);
+    }
+
+    /*
+     * The caller was responsible for making sure _some_ string in
+     * the list was in plain ASCII.
+     */
+    assert(!"Should never get here");
+    return NULL;		       /* placate optimiser */
+}
+
 void status_bar(drawing *dr, char *text)
 {
     char *rewritten;
@@ -283,3 +316,8 @@ void print_line_width(drawing *dr, int width)
      */
     dr->api->line_width(dr->handle, (float)sqrt(dr->scale) * width);
 }
+
+void print_line_dotted(drawing *dr, int dotted)
+{
+    dr->api->line_dotted(dr->handle, dotted);
+}