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#ifndef _MUXPS_H_

#define _MUXPS_H_

#ifndef _FITZ_H_

#error "fitz.h must be included before muxps.h"

#endif

typedef unsigned char byte;

/*

 * XPS and ZIP constants.

 */

typedef struct xps_context_s xps_context;

#define REL_START_PART \

	"http://schemas.microsoft.com/xps/2005/06/fixedrepresentation"

#define REL_REQUIRED_RESOURCE \

	"http://schemas.microsoft.com/xps/2005/06/required-resource"

#define REL_REQUIRED_RESOURCE_RECURSIVE \

	"http://schemas.microsoft.com/xps/2005/06/required-resource#recursive"

#define ZIP_LOCAL_FILE_SIG 0x04034b50

#define ZIP_DATA_DESC_SIG 0x08074b50

#define ZIP_CENTRAL_DIRECTORY_SIG 0x02014b50

#define ZIP_END_OF_CENTRAL_DIRECTORY_SIG 0x06054b50

/*

 * Memory, and string functions.

 */

int xps_strcasecmp(char *a, char *b);

void xps_absolute_path(char *output, char *base_uri, char *path, int output_size);

/*

 * XML document model

 */

typedef struct element xml_element;

xml_element *xml_parse_document(byte *buf, int len);

xml_element *xml_next(xml_element *item);

xml_element *xml_down(xml_element *item);

char *xml_tag(xml_element *item);

char *xml_att(xml_element *item, const char *att);

void xml_free_element(xml_element *item);

void xml_print_element(xml_element *item, int level);

/*

 * Container parts.

 */

typedef struct xps_part_s xps_part;

struct xps_part_s

{

	char *name;

	int size;

	int cap;

	byte *data;

};

xps_part *xps_new_part(xps_context *ctx, char *name, int size);

xps_part *xps_read_part(xps_context *ctx, char *partname);

void xps_free_part(xps_context *ctx, xps_part *part);

/*

 * Document structure.

 */

typedef struct xps_document_s xps_document;

typedef struct xps_page_s xps_page;

struct xps_document_s

{

	char *name;

	xps_document *next;

};

struct xps_page_s

{

	char *name;

	int width;

	int height;

	xml_element *root;

	xps_page *next;

};

int xps_read_page_list(xps_context *ctx);

void xps_debug_page_list(xps_context *ctx);

void xps_free_page_list(xps_context *ctx);

int xps_count_pages(xps_context *ctx);

int xps_load_page(xps_page **page, xps_context *ctx, int number);

void xps_free_page(xps_context *ctx, xps_page *page);

/*

 * Images, fonts, and colorspaces.

 */

int xps_decode_jpeg(fz_pixmap **imagep, byte *rbuf, int rlen);

int xps_decode_png(fz_pixmap **imagep, byte *rbuf, int rlen);

int xps_decode_tiff(fz_pixmap **imagep, byte *rbuf, int rlen);

typedef struct xps_font_cache_s xps_font_cache;

struct xps_font_cache_s

{

	char *name;

	fz_font *font;

	xps_font_cache *next;

};

typedef struct xps_glyph_metrics_s xps_glyph_metrics;

struct xps_glyph_metrics_s

{

	float hadv, vadv, vorg;

};

int xps_count_font_encodings(fz_font *font);

void xps_identify_font_encoding(fz_font *font, int idx, int *pid, int *eid);

void xps_select_font_encoding(fz_font *font, int idx);

int xps_encode_font_char(fz_font *font, int key);

void xps_measure_font_glyph(xps_context *ctx, fz_font *font, int gid, xps_glyph_metrics *mtx);

void xps_debug_path(xps_context *ctx);

void xps_parse_color(xps_context *ctx, char *base_uri, char *hexstring, fz_colorspace **csp, float *samples);

void xps_set_color(xps_context *ctx, fz_colorspace *colorspace, float *samples);

/*

 * Resource dictionaries.

 */

typedef struct xps_resource_s xps_resource;

struct xps_resource_s

{

	char *name;

	char *base_uri; /* only used in the head nodes */

	xml_element *base_xml; /* only used in the head nodes, to free the xml document */

	xml_element *data;

	xps_resource *next;

	xps_resource *parent; /* up to the previous dict in the stack */

};

int xps_parse_resource_dictionary(xps_context *ctx, xps_resource **dictp, char *base_uri, xml_element *root);

void xps_free_resource_dictionary(xps_context *ctx, xps_resource *dict);

void xps_resolve_resource_reference(xps_context *ctx, xps_resource *dict, char **attp, xml_element **tagp, char **urip);

void xps_debug_resource_dictionary(xps_resource *dict);

/*

 * Fixed page/graphics parsing.

 */

void xps_parse_fixed_page(xps_context *ctx, fz_matrix ctm, xps_page *page);

void xps_parse_canvas(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_path(xps_context *ctx, fz_matrix ctm, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_glyphs(xps_context *ctx, fz_matrix ctm, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_solid_color_brush(xps_context *ctx, fz_matrix ctm, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_image_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_visual_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_linear_gradient_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_radial_gradient_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_tiling_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *root, void(*func)(xps_context*, fz_matrix, fz_rect, char*, xps_resource*, xml_element*, void*), void *user);

void xps_parse_matrix_transform(xps_context *ctx, xml_element *root, fz_matrix *matrix);

void xps_parse_render_transform(xps_context *ctx, char *text, fz_matrix *matrix);

void xps_parse_rectangle(xps_context *ctx, char *text, fz_rect *rect);

void xps_begin_opacity(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, char *opacity_att, xml_element *opacity_mask_tag);

void xps_end_opacity(xps_context *ctx, char *base_uri, xps_resource *dict, char *opacity_att, xml_element *opacity_mask_tag);

void xps_parse_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_parse_element(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *node);

void xps_clip(xps_context *ctx, fz_matrix ctm, xps_resource *dict, char *clip_att, xml_element *clip_tag);

/*

 * The interpreter context.

 */

typedef struct xps_entry_s xps_entry;

struct xps_entry_s

{

	char *name;

	int offset;

	int csize;

	int usize;

};

struct xps_context_s

{

	char *directory;

	fz_stream *file;

	int zip_count;

	xps_entry *zip_table;

	char *start_part; /* fixed document sequence */

	xps_document *first_fixdoc; /* first fixed document */

	xps_document *last_fixdoc; /* last fixed document */

	xps_page *first_page; /* first page of document */

	xps_page *last_page; /* last page of document */

	char *base_uri; /* base uri for parsing XML and resolving relative paths */

	char *part_uri; /* part uri for parsing metadata relations */

	/* We cache font resources */

	xps_font_cache *font_table;

	/* Opacity attribute stack */

	float opacity[64];

	int opacity_top;

	/* Current color */

	fz_colorspace *colorspace;

	float color[8];

	float alpha;

	/* Current device */

	fz_device *dev;

};

int xps_open_file(xps_context **ctxp, char *filename);

int xps_open_stream(xps_context **ctxp, fz_stream *file);

void xps_free_context(xps_context *ctx);

#endif