| /* |
| * 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 "include/c/sk_types.h" |
| |
| SK_C_PLUS_PLUS_BEGIN_GUARD |
| |
| typedef enum { |
| CW_SK_PATH_DIRECTION, |
| CCW_SK_PATH_DIRECTION, |
| } sk_path_direction_t; |
| |
| typedef struct sk_pathbuilder_t sk_pathbuilder_t; |
| |
| /** Create a new, empty path. */ |
| SK_API sk_pathbuilder_t* sk_pathbuilder_new(void); |
| |
| /** Release the memory used by a sk_pathbuilder_t. */ |
| SK_API void sk_pathbuilder_delete(sk_pathbuilder_t*); |
| |
| /** Set the beginning of the next contour to the point (x,y). */ |
| SK_API void sk_pathbuilder_move_to(sk_pathbuilder_t*, float x, float y); |
| /** |
| Add a line from the last point to the specified point (x,y). If no |
| sk_pathbuilder_move_to() call has been made for this contour, the first |
| point is automatically set to (0,0). |
| */ |
| SK_API void sk_pathbuilder_line_to(sk_pathbuilder_t*, float x, float y); |
| /** |
| Add a quadratic bezier from the last point, approaching control |
| point (x0,y0), and ending at (x1,y1). If no sk_pathbuilder_move_to() call |
| has been made for this contour, the first point is automatically |
| set to (0,0). |
| */ |
| SK_API void sk_pathbuilder_quad_to(sk_pathbuilder_t*, float x0, float y0, float x1, float y1); |
| /** |
| Add a conic curve from the last point, approaching control point |
| (x0,y01), and ending at (x1,y1) with weight w. If no |
| sk_pathbuilder_move_to() call has been made for this contour, the first |
| point is automatically set to (0,0). |
| */ |
| SK_API void sk_pathbuilder_conic_to(sk_pathbuilder_t*, float x0, float y0, float x1, float y1, float w); |
| /** |
| Add a cubic bezier from the last point, approaching control points |
| (x0,y0) and (x1,y1), and ending at (x2,y2). If no |
| sk_pathbuilder_move_to() call has been made for this contour, the first |
| point is automatically set to (0,0). |
| */ |
| SK_API void sk_pathbuilder_cubic_to(sk_pathbuilder_t*, |
| float x0, float y0, |
| float x1, float y1, |
| float x2, float y2); |
| /** |
| Close the current contour. If the current point is not equal to the |
| first point of the contour, a line segment is automatically added. |
| */ |
| SK_API void sk_pathbuilder_close(sk_pathbuilder_t*); |
| |
| /** |
| Add a closed rectangle contour to the path. |
| */ |
| SK_API void sk_pathbuilder_add_rect(sk_pathbuilder_t*, const sk_rect_t*, sk_path_direction_t); |
| /** |
| Add a closed oval contour to the path |
| */ |
| SK_API void sk_pathbuilder_add_oval(sk_pathbuilder_t*, const sk_rect_t*, sk_path_direction_t); |
| |
| /**** path *****/ |
| |
| /** |
| * Return a Path from the builder, resetting the builder to its original empty state. |
| */ |
| SK_API sk_path_t* sk_pathbuilder_detach_path(sk_pathbuilder_t*); |
| |
| /** |
| * Return a Path from the builder. The builder reamins in its current state. |
| */ |
| SK_API sk_path_t* sk_pathbuilder_snapshot_path(sk_pathbuilder_t*); |
| |
| /** Release the memory used by a sk_path_t. */ |
| SK_API void sk_path_delete(sk_path_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. |
| */ |
| SK_API bool sk_path_get_bounds(const sk_path_t*, sk_rect_t*); |
| |
| SK_C_PLUS_PLUS_END_GUARD |
| |
| #endif |