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typedef struct fz_tree_s fz_tree;
typedef struct fz_node_s fz_node;
struct fz_tree_s
{
int refs;
fz_node *root;
fz_node *head;
};
/* tree operations */
fz_error *fz_newtree(fz_tree **treep);
fz_tree *fz_keeptree(fz_tree *tree);
void fz_droptree(fz_tree *tree);
fz_rect fz_boundtree(fz_tree *tree, fz_matrix ctm);
void fz_debugtree(fz_tree *tree);
void fz_insertnode(fz_node *parent, fz_node *child);
/* node types */
typedef struct fz_transformnode_s fz_transformnode;
typedef struct fz_overnode_s fz_overnode;
typedef struct fz_masknode_s fz_masknode;
typedef struct fz_blendnode_s fz_blendnode;
typedef struct fz_pathnode_s fz_pathnode;
typedef struct fz_textnode_s fz_textnode;
typedef struct fz_colornode_s fz_colornode;
typedef struct fz_imagenode_s fz_imagenode;
typedef struct fz_shadenode_s fz_shadenode;
typedef struct fz_linknode_s fz_linknode;
typedef struct fz_metanode_s fz_metanode;
typedef enum fz_nodekind_e
{
FZ_NTRANSFORM,
FZ_NOVER,
FZ_NMASK,
FZ_NBLEND,
FZ_NPATH,
FZ_NTEXT,
FZ_NCOLOR,
FZ_NIMAGE,
FZ_NSHADE,
FZ_NLINK,
FZ_NMETA
} fz_nodekind;
typedef enum fz_blendkind_e
{
/* PDF 1.4 -- standard separable */
FZ_BNORMAL,
FZ_BMULTIPLY,
FZ_BSCREEN,
FZ_BOVERLAY,
FZ_BDARKEN,
FZ_BLIGHTEN,
FZ_BCOLORDODGE,
FZ_BCOLORBURN,
FZ_BHARDLIGHT,
FZ_BSOFTLIGHT,
FZ_BDIFFERENCE,
FZ_BEXCLUSION,
/* PDF 1.4 -- standard non-separable */
FZ_BHUE,
FZ_BSATURATION,
FZ_BCOLOR,
FZ_BLUMINOSITY,
FZ_BOVERPRINT,
FZ_BRASTEROP
} fz_blendkind;
struct fz_node_s
{
fz_nodekind kind;
fz_node *parent;
fz_node *first;
fz_node *last;
fz_node *next;
};
struct fz_transformnode_s
{
fz_node super;
fz_matrix m;
};
struct fz_overnode_s
{
fz_node super;
};
struct fz_masknode_s
{
fz_node super;
};
struct fz_blendnode_s
{
fz_node super;
fz_colorspace *cs;
fz_blendkind mode;
int isolated;
int knockout;
};
struct fz_colornode_s
{
fz_node super;
fz_colorspace *cs;
int n;
float samples[FZ_FLEX];
};
struct fz_linknode_s
{
fz_node super;
fz_tree *tree;
};
struct fz_metanode_s
{
fz_node super;
fz_obj *name;
fz_obj *dict;
};
struct fz_imagenode_s
{
fz_node super;
fz_image *image;
};
/* common to all nodes */
void fz_initnode(fz_node *node, fz_nodekind kind);
fz_rect fz_boundnode(fz_node *node, fz_matrix ctm);
void fz_dropnode(fz_node *node);
/* branch nodes */
fz_error *fz_newmetanode(fz_node **nodep, fz_obj *name, fz_obj *dict);
fz_error *fz_newovernode(fz_node **nodep);
fz_error *fz_newmasknode(fz_node **nodep);
fz_error *fz_newblendnode(fz_node **nodep, fz_colorspace *cs, fz_blendkind b, int k, int i);
fz_error *fz_newtransformnode(fz_node **nodep, fz_matrix m);
int fz_istransformnode(fz_node *node);
int fz_isovernode(fz_node *node);
int fz_ismasknode(fz_node *node);
int fz_isblendnode(fz_node *node);
int fz_ismetanode(fz_node *node);
/* leaf nodes */
fz_error *fz_newlinknode(fz_node **nodep, fz_tree *subtree);
fz_error *fz_newcolornode(fz_node **nodep, fz_colorspace *cs, int n, float *v);
fz_error *fz_newimagenode(fz_node **nodep, fz_image *image);
int fz_islinknode(fz_node *node);
int fz_iscolornode(fz_node *node);
int fz_ispathnode(fz_node *node);
int fz_istextnode(fz_node *node);
int fz_isimagenode(fz_node *node);
int fz_isshadenode(fz_node *node);
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