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/* pdfs.h */
/*
Copyright (C) 2005 Bill Paxton
This file is part of Tioga.
Tioga is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Tioga is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with Tioga; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __pdfs_H__
#define __pdfs_H__
#include <namespace.h>
extern long *obj_offsets, capacity_obj_offsets, stream_start, stream_end, length_offset, xref_offset;
extern long num_objects, next_available_object_number, next_available_gs_number, next_available_xo_number;
extern long next_available_shade_number, next_available_font_number;
extern void Record_Object_Offset(int obj_number);
extern char *predefined_Fonts[];
extern int num_pdf_standard_fonts, num_predefined_fonts;
typedef struct stroke_opacity_state {
struct stroke_opacity_state *next;
int gs_num;
int obj_num;
double stroke_opacity;
} Stroke_Opacity_State;
extern Stroke_Opacity_State *stroke_opacities;
typedef struct fill_opacity_state {
struct fill_opacity_state *next;
int gs_num;
int obj_num;
double fill_opacity;
} Fill_Opacity_State;
extern Fill_Opacity_State *fill_opacities;
typedef struct xobj_info {
struct xobj_info *next;
int xo_num;
int obj_num;
int xobj_subtype;
} XObject_Info;
extern XObject_Info *xobj_list;
typedef struct jpg_info {
// start must match start of xobj_info
struct xobj_info *next;
int xo_num;
int obj_num;
int xobj_subtype;
// remainder is for this subtype of xobj
int width, height;
int mask_obj_num;
char *filename;
} JPG_Info;
extern void Write_JPG(JPG_Info *xo, int *ierr);
extern void Free_JPG(JPG_Info *xo);
typedef struct sampled_info {
// start must match start of xobj_info
struct xobj_info *next;
int xo_num;
int obj_num;
int xobj_subtype;
// remainder is for this subtype of xobj
int width, height;
int length; // number of bytes of image data
unsigned char *image_data;
bool interpolate;
bool reversed; // only applies to mono images
int mask_obj_num;
int image_type;
int value_mask_min;
int value_mask_max;
int hival;
int lookup_len;
unsigned char *lookup;
} Sampled_Info;
extern void Write_Sampled(Sampled_Info *xo, int *ierr);
extern void Free_Sampled(Sampled_Info *xo);
#define JPG_SUBTYPE 1
#define SAMPLED_SUBTYPE 2
#define RGB_IMAGE 0
#define CMYK_IMAGE 4
#define GRAY_IMAGE 1
#define MONO_IMAGE 2
#define COLORMAP_IMAGE 3
typedef struct function_info {
struct function_info *next;
int obj_num;
int hival;
int lookup_len;
unsigned char *lookup;
} Function_Info;
extern Function_Info *functions_list;
typedef struct shading_info {
struct shading_info *next;
int shade_num;
int obj_num;
bool axial;
double x0;
double y0;
double x1;
double y1;
double r0;
double r1;
int function;
bool extend_start;
bool extend_end;
} Shading_Info;
extern Shading_Info *shades_list;
typedef struct {
int font_num; // for making font resource name such as /F7
char *font_name;
int firstChar, lastChar; // firstChar typically is 0 and lastChar 255
int char_width[256], char_llx[256], char_lly[256], char_urx[256], char_ury[256];
int widths_obj_num;
/* FontDescriptor */
int flags; // describe the font
int fnt_llx, fnt_lly, fnt_urx, fnt_ury; // FontBBox
int italicAngle, ascent, descent, capHeight, stemV;
} Font_Afm_Info;
extern Font_Afm_Info afm_array[];
typedef struct font_dictionary {
struct font_dictionary *next;
int font_num; // for making font resource name such as /F7
int obj_num;
bool in_use;
int widths_obj_num;
int descriptor_obj_num;
Font_Afm_Info *afm;
} Font_Dictionary;
extern Font_Dictionary *font_dictionaries;
typedef struct old_font_dictionary {
struct old_font_dictionary *next;
int font_num; // for making font resource name such as /F7
int obj_num;
bool in_use;
char *font_name;
int firstChar, lastChar; // firstChar typically is 0 and lastChar 255
int char_width[256], char_llx[256], char_lly[256], char_urx[256], char_ury[256];
int widths_obj_num;
/* FontDescriptor */
int descriptor_obj_num;
int flags; // describe the font
int fnt_llx, fnt_lly, fnt_urx, fnt_ury; // FontBBox
int italicAngle, ascent, descent, capHeight, stemV;
} Old_Font_Dictionary;
extern Old_Font_Dictionary *old_font_dictionaries;
#define FixedPitchFlag 1
#define SerifFlag 2
#define SymbolicFlag 4
#define ScriptFlag 8
#define NonsymbolicFlag (1<<5)
#define ItalicFlag (1<<6)
#define AllCapFlag (1<<16)
#define SmallCapFlag (1<<17)
#define ForceBoldFlag (1<<18)
#define RADIANS_TO_DEGREES (180.0 / PI)
extern bool have_current_point, constructing_path, writing_file;
extern FILE *OF; // for the PDF file
extern FILE *TF; // for the temp file holding the uncompressed stream
#endif /* __pdfs_H__ */
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