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/*
* 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
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