From: espen <espen>
Date: Fri, 6 Apr 2007 14:12:09 +0000 (+0000)
Subject: Added optional NEGATIVE-P argument to function CIRCLE
X-Git-Tag: clg-0-93~179
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/commitdiff_plain/54a15367e0b7b4f086bbfb94d1b84dd542ee95a8

Added optional NEGATIVE-P argument to function CIRCLE
---

diff --git a/cairo/cairo.lisp b/cairo/cairo.lisp
index 63b1f70..74bf02a 100644
--- a/cairo/cairo.lisp
+++ b/cairo/cairo.lisp
@@ -20,7 +20,7 @@
 ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-;; $Id: cairo.lisp,v 1.11 2007/02/19 14:37:52 espen Exp $
+;; $Id: cairo.lisp,v 1.12 2007/04/06 14:12:09 espen Exp $
 
 (in-package "CAIRO")
 
@@ -498,8 +498,13 @@ (defpath line-to (x y) t)
 (defpath move-to (x y) t)
 (defpath rectangle (x y width height))
 
-(defun circle (cr x y radius)
-  (arc cr x y radius 0.0 (* pi 2)))
+(defun circle (cr x y radius &optional negative-p)
+  (move-to cr radius 0.0d0)
+  (if negative-p
+      (arc-negative cr x y radius (* pi 2) 0.0d0)
+    (arc cr x y radius 0.0d0 (* pi 2)))
+  (close-path cr))
+
 
 (defbinding glyph-path (cr glyphs) nil
   (cr context)