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/*
* Vector path nodes in the display tree.
* They can be stroked and dashed, or be filled.
* They have a fill rule (nonzero or evenodd).
*
* When rendering, they are flattened, stroked and dashed straight
* into the Global Edge List.
*
* TODO flatten, stroke and dash into another path
* TODO set operations on flat paths (union, intersect, difference)
* TODO decide whether dashing should be part of the tree and renderer,
* or if it is something the client has to do (with a util function).
*/
typedef struct fz_stroke_s fz_stroke;
typedef struct fz_dash_s fz_dash;
typedef union fz_pathel_s fz_pathel;
typedef enum fz_pathkind_e
{
FZ_STROKE,
FZ_FILL,
FZ_EOFILL
} fz_pathkind;
typedef enum fz_pathelkind_e
{
FZ_MOVETO,
FZ_LINETO,
FZ_CURVETO,
FZ_CLOSEPATH
} fz_pathelkind;
struct fz_stroke_s
{
int linecap;
int linejoin;
float linewidth;
float miterlimit;
};
struct fz_dash_s
{
int len;
float phase;
float array[FZ_FLEX];
};
union fz_pathel_s
{
fz_pathelkind k;
float v;
};
struct fz_pathnode_s
{
fz_node super;
fz_pathkind paint;
fz_dash *dash;
int linecap;
int linejoin;
float linewidth;
float miterlimit;
int len, cap;
fz_pathel *els;
};
fz_error *fz_newpathnode(fz_pathnode **pathp);
fz_error *fz_clonepathnode(fz_pathnode **pathp, fz_pathnode *oldpath);
fz_error *fz_moveto(fz_pathnode*, float x, float y);
fz_error *fz_lineto(fz_pathnode*, float x, float y);
fz_error *fz_curveto(fz_pathnode*, float, float, float, float, float, float);
fz_error *fz_curvetov(fz_pathnode*, float, float, float, float);
fz_error *fz_curvetoy(fz_pathnode*, float, float, float, float);
fz_error *fz_closepath(fz_pathnode*);
fz_error *fz_endpath(fz_pathnode*, fz_pathkind paint, fz_stroke *stroke, fz_dash *dash);
fz_rect fz_boundpathnode(fz_pathnode *node, fz_matrix ctm);
void fz_debugpathnode(fz_pathnode *node, int indent);
void fz_printpathnode(fz_pathnode *node, int indent);
fz_error *fz_newdash(fz_dash **dashp, float phase, int len, float *array);
void fz_dropdash(fz_dash *dash);
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