separate c headers

include/c/sk_path.h

+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+// EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
+// DO NOT USE -- FOR INTERNAL TESTING ONLY
+
+#ifndef sk_path_DEFINED
+#define sk_path_DEFINED
+
+#include "sk_types.h"
+
+SK_C_PLUS_PLUS_BEGIN_GUARD
+
+typedef enum {
+    CW_SK_PATH_DIRECTION,
+    CCW_SK_PATH_DIRECTION,
+} sk_path_direction_t;
+
+sk_path_t* sk_path_new();
+void sk_path_delete(sk_path_t*);
+
+void sk_path_move_to(sk_path_t*, float x, float y);
+void sk_path_line_to(sk_path_t*, float x, float y);
+void sk_path_quad_to(sk_path_t*, float x0, float y0, float x1, float y1);
+void sk_path_conic_to(sk_path_t*, float x0, float y0, float x1, float y1, float w);
+void sk_path_cubic_to(sk_path_t*, float x0, float y0, float x1, float y1, float x2, float y2);
+void sk_path_close(sk_path_t*);
+
+void sk_path_add_rect(sk_path_t*, const sk_rect_t*, sk_path_direction_t);
+void sk_path_add_oval(sk_path_t*, const sk_rect_t*, sk_path_direction_t);
+
+/**
+ *  If the path is empty, return false and set the rect parameter to [0, 0, 0, 0].
+ *  else return true and set the rect parameter to the bounds of the control-points
+ *  of the path.
+ */
+bool sk_path_get_bounds(const sk_path_t*, sk_rect_t*);
+
+SK_C_PLUS_PLUS_END_GUARD
+
+#endif