Update upstream source from tag 'upstream/5.1.0'

Update to upstream version '5.1.0'
with Debian dir 93ca74b8b4602fce4c9c7740e0cfdde25f086673

1 files changed, 31 insertions, 0 deletions

diff --git a/app/cornu/spiroentrypoints.h b/app/cornu/spiroentrypoints.h
new file mode 100644
index 0000000..006804c
--- /dev/null
+++ b/app/cornu/spiroentrypoints.h
@@ -0,0 +1,31 @@
+#ifndef _SPIROENTRYPOINTS_H
+# define _SPIROENTRYPOINTS_H
+# include "bezctx_intf.h"
+# include "spiro.h"
+
+    /* Possible values of the "ty" field. */
+#define SPIRO_CORNER	'v'
+#define SPIRO_G4		'o'
+#define SPIRO_G2		'c'
+#define SPIRO_LEFT		'['
+#define SPIRO_RIGHT		']'
+
+    /* For a closed contour add an extra cp with a ty set to */
+#define SPIRO_END		'z'
+    /* For an open contour the first cp must have a ty set to*/
+#define SPIRO_OPEN_CONTOUR	'{'
+    /* For an open contour the last cp must have a ty set to */
+#define SPIRO_END_OPEN_CONTOUR	'}'
+
+/* The spiros array should indicate it's own end... So              */
+/* Open contours must have the ty field of the first cp set to '{'  */
+/*               and have the ty field of the last cp set to '}'    */
+/* Closed contours must have an extra cp at the end whose ty is 'z' */
+/*               the x&y values of this extra cp are ignored        */
+extern void TaggedSpiroCPsToBezier(spiro_cp *spiros,bezctx *bc);
+
+/* The first argument is an array of spiro control points.          */
+/* Open contours do not need to start with '{', nor to end with '}' */
+/* Close contours do not need to end with 'z'                       */
+extern void SpiroCPsToBezier(spiro_cp *spiros,int n,int isclosed,bezctx *bc);
+#endif