filter/hpgltops.h

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