filter/hpgltops.h

   1 /*
   2  * "$Id: hpgltops.h 6649 2007-07-11 21:46:42Z mike $"
   3  *
   4  *   HP-GL/2 to PostScript filter for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007 by Apple Inc.
   7  *   Copyright 1993-2005 by Easy Software Products.
   8  *
   9  *   These coded instructions, statements, and computer programs are the
  10  *   property of Apple Inc. and are protected by Federal copyright
  11  *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  *   which should have been included with this file.  If this file is
  13  *   file is missing or damaged, see the license at "http://www.cups.org/".
  14  *
  15  *   This file is subject to the Apple OS-Developed Software exception.
  16  */
  17
  18 /*
  19  * Include necessary headers...
  20  */
  21
  22 #include "common.h"
  23 #include <math.h>
  24
  25 #ifndef M_PI
  26 #  define M_PI  3.14159265358979323846
  27 #endif /* M_PI */
  28
  29
  30 /*
  31  * Maximum number of pens we emulate...
  32  */
  33
  34 #define MAX_PENS        1024
  35
  36
  37 /*
  38  * Parameter value structure...
  39  */
  40
  41 typedef struct
  42 {
  43   int   type;
  44   union
  45   {
  46     float       number;
  47     char        *string;
  48   }     value;
  49 } param_t;
  50
  51 #define PARAM_ABSOLUTE  0
  52 #define PARAM_RELATIVE  1
  53 #define PARAM_STRING    2
  54
  55
  56 /*
  57  * Font information...
  58  */
  59
  60 typedef struct
  61 {
  62   int   symbol_set,     /* Symbol set */
  63         spacing,        /* Spacing (0 = fixed, 1 = proportional) */
  64         posture,        /* Posture number */
  65         weight,         /* Weight number */
  66         typeface;       /* Typeface number */
  67   float pitch,          /* Characters per inch */
  68         height,         /* Height/size of font */
  69         xpitch;         /* X pitch scaling value */
  70   float x, y;           /* X and Y direction/scaling */
  71 } font_t;
  72
  73
  74 /*
  75  * Pen information...
  76  */
  77
  78 typedef struct
  79 {
  80   float rgb[3];         /* Pen color */
  81   float width;          /* Pen width */
  82 } pen_t;
  83
  84
  85 /*
  86  * Globals...
  87  */
  88
  89 #ifdef _HPGL_MAIN_C_
  90 #  define VAR
  91 #  define VALUE(x) =x
  92 #  define VALUE2(x,y) ={x,y}
  93 #else
  94 #  define VAR extern
  95 #  define VALUE(x)
  96 #  define VALUE2(x,y)
  97 #endif /* _HPGL_MAIN_C_ */
  98
  99 VAR ppd_file_t  *PPD VALUE(NULL);               /* PPD file */
 100
 101 VAR float       P1[2],                          /* Lower-lefthand physical limit */
 102                 P2[2],                          /* Upper-righthand physical limit */
 103                 IW1[2],                         /* Window lower-lefthand limit */
 104                 IW2[2];                         /* Window upper-righthand limit */
 105 VAR int         Rotation        VALUE(0);       /* Page rotation */
 106 VAR int         ScalingType     VALUE(-1);      /* Type of scaling (-1 for none) */
 107 VAR float       Scaling1[2],                    /* Lower-lefthand user limit */
 108                 Scaling2[2];                    /* Upper-righthand user limit */
 109 VAR float       Transform[2][3];                /* Transform matrix */
 110 VAR int         PageRotation    VALUE(0);       /* Page/plot rotation */
 111
 112 VAR char        StringTerminator VALUE('\003'); /* Terminator for labels */
 113 VAR font_t      StandardFont,                   /* Standard font */
 114                 AlternateFont;                  /* Alternate font */
 115 VAR float       PenPosition[2]  VALUE2(0.0f, 0.0f),
 116                                                 /* Current pen position */
 117                 PenScaling      VALUE(1.0f),    /* Pen width scaling factor */
 118                 PenWidth        VALUE(1.0f);    /* Default pen width */
 119 VAR pen_t       Pens[MAX_PENS];                 /* State of each pen */
 120 VAR int         PenMotion       VALUE(0),       /* 0 = absolute, 1 = relative */
 121                 PenValid        VALUE(0),       /* 1 = valid position, 0 = undefined */
 122                 PenNumber       VALUE(0),       /* Current pen number */
 123                 PenCount        VALUE(8),       /* Number of pens */
 124                 PenDown         VALUE(0),       /* 0 = pen up, 1 = pen down */
 125                 PolygonMode     VALUE(0),       /* Drawing polygons? */
 126                 PageCount       VALUE(0),       /* Number of pages in plot */
 127                 PageDirty       VALUE(0),       /* Current page written on? */
 128                 WidthUnits      VALUE(0);       /* 0 = mm, 1 = proportionate */
 129 VAR float       PlotSize[2]     VALUE2(2592.0f, 3456.0f);
 130                                                 /* Plot size */
 131 VAR int         PlotSizeSet     VALUE(0);       /* Plot size set? */
 132 VAR int         CharFillMode    VALUE(0),       /* Where to draw labels */
 133                 CharPen         VALUE(0),       /* Pen to use for labels */
 134                 CharFont        VALUE(0);       /* Font to use for labels */
 135 VAR float       CharHeight[2]   VALUE2(11.5f,11.5f);
 136                                                 /* Size of font for labels */
 137 VAR int         FitPlot         VALUE(0);       /* 1 = fit to page */
 138 VAR float       ColorRange[3][2]                /* Range of color values */
 139 #ifdef _HPGL_MAIN_C_
 140                 = {
 141                   { 0.0, 255.0 },
 142                   { 0.0, 255.0 },
 143                   { 0.0, 255.0 }
 144                 }
 145 #endif /* _HPGL_MAIN_C_ */
 146 ;
 147
 148 VAR int         LineCap         VALUE(0);       /* Line capping */
 149 VAR int         LineJoin        VALUE(0);       /* Line joining */
 150 VAR float       MiterLimit      VALUE(3.0f);    /* Miter limit at joints */
 151
 152
 153 /*
 154  * Prototypes...
 155  */
 156
 157 /* hpgl-input.c */
 158 extern int      ParseCommand(FILE *fp, char *name, param_t **params);
 159 extern void     FreeParameters(int num_params, param_t *params);
 160
 161 /* hpgl-config.c */
 162 extern void     update_transform(void);
 163 extern void     BP_begin_plot(int num_params, param_t *params);
 164 extern void     DF_default_values(int num_params, param_t *params);
 165 extern void     IN_initialize(int num_params, param_t *params);
 166 extern void     IP_input_absolute(int num_params, param_t *params);
 167 extern void     IR_input_relative(int num_params, param_t *params);
 168 extern void     IW_input_window(int num_params, param_t *params);
 169 extern void     PG_advance_page(int num_params, param_t *params);
 170 extern void     PS_plot_size(int num_params, param_t *params);
 171 extern void     RO_rotate(int num_params, param_t *params);
 172 extern void     RP_replot(int num_params, param_t *params);
 173 extern void     SC_scale(int num_params, param_t *params);
 174
 175 /* hpgl-vector.c */
 176 extern void     AA_arc_absolute(int num_params, param_t *params);
 177 extern void     AR_arc_relative(int num_params, param_t *params);
 178 extern void     AT_arc_absolute3(int num_params, param_t *params);
 179 extern void     CI_circle(int num_params, param_t *params);
 180 extern void     PA_plot_absolute(int num_params, param_t *params);
 181 extern void     PD_pen_down(int num_params, param_t *params);
 182 extern void     PE_polyline_encoded(int num_params, param_t *params);
 183 extern void     PR_plot_relative(int num_params, param_t *params);
 184 extern void     PU_pen_up(int num_params, param_t *params);
 185 extern void     RT_arc_relative3(int num_params, param_t *params);
 186
 187 /* hpgl-polygon.c */
 188 extern void     EA_edge_rect_absolute(int num_params, param_t *params);
 189 extern void     EP_edge_polygon(int num_params, param_t *params);
 190 extern void     ER_edge_rect_relative(int num_params, param_t *params);
 191 extern void     EW_edge_wedge(int num_params, param_t *params);
 192 extern void     FP_fill_polygon(int num_params, param_t *params);
 193 extern void     PM_polygon_mode(int num_params, param_t *params);
 194 extern void     RA_fill_rect_absolute(int num_params, param_t *params);
 195 extern void     RR_fill_rect_relative(int num_params, param_t *params);
 196 extern void     WG_fill_wedge(int num_params, param_t *params);
 197
 198 /* hpgl-char.c */
 199 extern void     define_font(int f);
 200 extern void     AD_define_alternate(int num_params, param_t *params);
 201 extern void     CF_character_fill(int num_params, param_t *params);
 202 extern void     CP_character_plot(int num_params, param_t *params);
 203 extern void     DI_absolute_direction(int num_params, param_t *params);
 204 extern void     DR_relative_direction(int num_params, param_t *params);
 205 extern void     DT_define_label_term(int num_params, param_t *params);
 206 extern void     DV_define_variable_path(int num_params, param_t *params);
 207 extern void     ES_extra_space(int num_params, param_t *params);
 208 extern void     LB_label(int num_params, param_t *params);
 209 extern void     LO_label_origin(int num_params, param_t *params);
 210 extern void     SA_select_alternate(int num_params, param_t *params);
 211 extern void     SD_define_standard(int num_params, param_t *params);
 212 extern void     SI_absolute_size(int num_params, param_t *params);
 213 extern void     SL_character_slant(int num_params, param_t *params);
 214 extern void     SR_relative_size(int num_params, param_t *params);
 215 extern void     SS_select_standard(int num_params, param_t *params);
 216 extern void     TD_transparent_data(int num_params, param_t *params);
 217
 218 /* hpgl-attr.c */
 219 extern void     AC_anchor_corner(int num_params, param_t *params);
 220 extern void     CR_color_range(int num_params, param_t *params);
 221 extern void     FT_fill_type(int num_params, param_t *params);
 222 extern void     LA_line_attributes(int num_params, param_t *params);
 223 extern void     LT_line_type(int num_params, param_t *params);
 224 extern void     NP_number_pens(int num_params, param_t *params);
 225 extern void     PC_pen_color(int num_params, param_t *params);
 226 extern void     PW_pen_width(int num_params, param_t *params);
 227 extern void     RF_raster_fill(int num_params, param_t *params);
 228 extern void     SM_symbol_mode(int num_params, param_t *params);
 229 extern void     SP_select_pen(int num_params, param_t *params);
 230 extern void     UL_user_line_type(int num_params, param_t *params);
 231 extern void     WU_width_units(int num_params, param_t *params);
 232
 233 /* hpgl-prolog.c */
 234 extern void     OutputProlog(char *title, char *user, int shading);
 235 extern void     OutputTrailer(void);
 236 extern int      Outputf(const char *format, ...);
 237
 238 /*
 239  * End of "$Id: hpgltops.h 6649 2007-07-11 21:46:42Z mike $".
 240  */