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typedef struct fz_tree_s fz_tree;
typedef struct fz_node_s fz_node;
typedef enum fz_nodekind_e fz_nodekind;
typedef enum fz_blendkind_e fz_blendkind;
typedef struct fz_transform_s fz_transform;
typedef struct fz_over_s fz_over;
typedef struct fz_mask_s fz_mask;
typedef struct fz_blend_s fz_blend;
typedef struct fz_path_s fz_path;
typedef struct fz_text_s fz_text;
typedef struct fz_solid_s fz_solid;
typedef struct fz_image_s fz_image;
typedef struct fz_shade_s fz_shade;
typedef struct fz_form_s fz_form;
typedef struct fz_meta_s fz_meta;
typedef struct fz_halftone_s fz_halftone;
enum fz_nodekind_e
{
FZ_NTRANSFORM,
FZ_NOVER,
FZ_NMASK,
FZ_NBLEND,
FZ_NPATH,
FZ_NTEXT,
FZ_NSOLID,
FZ_NIMAGE,
FZ_NSHADE,
FZ_NFORM,
FZ_NMETA,
FZ_NHALFTONE
};
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,
};
struct fz_tree_s
{
fz_node *root;
fz_node *head;
};
struct fz_node_s
{
fz_nodekind kind;
fz_node *parent;
fz_node *next;
};
struct fz_meta_s
{
fz_node super;
fz_node *child;
fz_obj *info;
};
struct fz_over_s
{
fz_node super;
fz_node *child;
};
struct fz_mask_s
{
fz_node super;
fz_node *child;
};
struct fz_blend_s
{
fz_node super;
fz_node *child;
fz_blendkind mode;
int isolated;
int knockout;
};
struct fz_transform_s
{
fz_node super;
fz_node *child;
fz_matrix m;
};
struct fz_form_s
{
fz_node super;
fz_tree *tree;
};
struct fz_solid_s
{
fz_node super;
float r, g, b;
};
/* tree operations */
fz_error *fz_newtree(fz_tree **treep);
void fz_freetree(fz_tree *tree);
fz_rect fz_boundtree(fz_tree *tree, fz_matrix ctm);
void fz_debugtree(fz_tree *tree);
void fz_insertnode(fz_node *node, fz_node *child);
/* 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_freenode(fz_node *node);
/* branch nodes */
fz_error *fz_newmeta(fz_node **nodep, fz_obj *info);
fz_error *fz_newover(fz_node **nodep);
fz_error *fz_newmask(fz_node **nodep);
fz_error *fz_newblend(fz_node **nodep, fz_blendkind b, int k, int i);
fz_error *fz_newtransform(fz_node **nodep, fz_matrix m);
int fz_ismeta(fz_node *node);
int fz_isover(fz_node *node);
int fz_ismask(fz_node *node);
int fz_isblend(fz_node *node);
int fz_istransform(fz_node *node);
/* leaf nodes */
fz_error *fz_newform(fz_node **nodep, fz_tree *subtree);
fz_error *fz_newsolid(fz_node **nodep, float r, float g, float b);
int fz_isform(fz_node *node);
int fz_issolid(fz_node *node);
int fz_ispath(fz_node *node);
int fz_istext(fz_node *node);
int fz_isimage(fz_node *node);
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