Usenet 1994 January

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C/C++ Source or Header | 1993-05-27 | 8.7 KB | 350 lines

/* * FIG : Facility for Interactive Generation of figures * Copyright (c) 1985 by Supoj Sutanthavibul * * "Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both the copyright * notice and this permission notice appear in supporting documentation. * No representations are made about the suitability of this software for * any purpose. It is provided "as is" without express or implied warranty." */ #define DEFAULT (-1) #define SOLID_LINE 0 #define DASH_LINE 1 #define DOTTED_LINE 2 #define RUBBER_LINE 3 #define PANEL_LINE 4 #define Color int #define BLACK 0 #define WHITE 7 typedef struct f_pattern { int w, h; int *p; } F_pattern; typedef struct f_point { int x, y; struct f_point *next; } F_point; typedef struct f_pos { int x, y; } F_pos; typedef struct f_arrow { int type; int style; float thickness; float wid; float ht; } F_arrow; typedef struct f_ellipse { int tagged; int type; #define T_ELLIPSE_BY_RAD 1 #define T_ELLIPSE_BY_DIA 2 #define T_CIRCLE_BY_RAD 3 #define T_CIRCLE_BY_DIA 4 int style; int thickness; Color color; int depth; int direction; float style_val; float angle; int pen; int fill_style; #define UNFILLED 0 #define WHITE_FILL 1 #define BLACK_FILL 21 struct f_pos center; struct f_pos radiuses; struct f_pos start; struct f_pos end; struct f_ellipse *next; } F_ellipse; typedef struct f_arc { int tagged; int type; #define T_3_POINTS_ARC 1 int style; int thickness; Color color; int depth; int pen; int fill_style; float style_val; int direction; struct f_arrow *for_arrow; struct f_arrow *back_arrow; struct { float x, y; } center; struct f_pos point[3]; struct f_arc *next; } F_arc; #define CLOSED_PATH 0 #define OPEN_PATH 1 #define DEF_BOXRADIUS 7 #define DEF_DASHLENGTH 4 #define DEF_DOTGAP 3 typedef struct f_eps { char file[PATH_MAX]; int flipped; unsigned char *bitmap; float hw_ratio; int size_x, size_y; struct f_pos bit_size; Pixmap pixmap; int pix_rotation, pix_width, pix_height, pix_flipped; } F_eps; extern char EMPTY_EPS[]; typedef struct f_line { int tagged; int type; #define T_POLYLINE 1 #define T_BOX 2 #define T_POLYGON 3 #define T_ARC_BOX 4 #define T_EPS_BOX 5 int style; int thickness; Color color; int depth; float style_val; int pen; int fill_style; int radius; /* corner radius for T_ARC_BOX */ struct f_arrow *for_arrow; struct f_arrow *back_arrow; struct f_point *points; struct f_eps *eps; struct f_line *next; } F_line; typedef struct f_text { int tagged; int type; #define T_LEFT_JUSTIFIED 0 #define T_CENTER_JUSTIFIED 1 #define T_RIGHT_JUSTIFIED 2 int font; PIX_ROT_FONT fontstruct; int size; /* point size */ Color color; int depth; float angle; /* in radian */ int flags; #define RIGID_TEXT 1 #define SPECIAL_TEXT 2 #define PSFONT_TEXT 4 #define HIDDEN_TEXT 8 int height; /* pixels */ int length; /* pixels */ int base_x; int base_y; int pen; char *cstring; struct f_text *next; } F_text; #define MAXFONT(T) (psfont_text(T) ? NUM_PS_FONTS : NUM_LATEX_FONTS) #define rigid_text(t) \ (t->flags == DEFAULT \ || (t->flags & RIGID_TEXT)) #define special_text(t) \ ((t->flags != DEFAULT \ && (t->flags & SPECIAL_TEXT))) #define psfont_text(t) \ (t->flags != DEFAULT \ && (t->flags & PSFONT_TEXT)) #define hidden_text(t) \ (t->flags != DEFAULT \ && (t->flags & HIDDEN_TEXT)) #define text_length(t) \ (hidden_text(t) ? hidden_text_length : t->length) #define using_ps (cur_textflags & PSFONT_TEXT) typedef struct f_control { float lx, ly, rx, ry; struct f_control *next; } F_control; #define int_spline(s) (s->type & 0x2) #define normal_spline(s) (!(s->type & 0x2)) #define closed_spline(s) (s->type & 0x1) #define open_spline(s) (!(s->type & 0x1)) typedef struct f_spline { int tagged; int type; #define T_OPEN_NORMAL 0 #define T_CLOSED_NORMAL 1 #define T_OPEN_INTERP 2 #define T_CLOSED_INTERP 3 int style; int thickness; Color color; int depth; float style_val; int pen; int fill_style; struct f_arrow *for_arrow; struct f_arrow *back_arrow; /* * For T_OPEN_NORMAL and T_CLOSED_NORMAL points are control points while * they are knots for T_OPEN_INTERP and T_CLOSED_INTERP whose control * points are stored in controls. */ struct f_point *points; struct f_control *controls; struct f_spline *next; } F_spline; typedef struct f_compound { int tagged; struct f_pos nwcorner; struct f_pos secorner; struct f_line *lines; struct f_ellipse *ellipses; struct f_spline *splines; struct f_text *texts; struct f_arc *arcs; struct f_compound *compounds; struct f_compound *next; } F_compound; typedef struct f_linkinfo { struct f_line *line; struct f_point *endpt; struct f_point *prevpt; int two_pts; struct f_linkinfo *next; } F_linkinfo; #define ARROW_SIZE sizeof(struct f_arrow) #define POINT_SIZE sizeof(struct f_point) #define CONTROL_SIZE sizeof(struct f_control) #define ELLOBJ_SIZE sizeof(struct f_ellipse) #define ARCOBJ_SIZE sizeof(struct f_arc) #define LINOBJ_SIZE sizeof(struct f_line) #define TEXOBJ_SIZE sizeof(struct f_text) #define SPLOBJ_SIZE sizeof(struct f_spline) #define COMOBJ_SIZE sizeof(struct f_compound) #define EPS_SIZE sizeof(struct f_eps) #define LINKINFO_SIZE sizeof(struct f_linkinfo) /********************** object codes **********************/ #define O_ELLIPSE 1 #define O_POLYLINE 2 #define O_SPLINE 3 #define O_TEXT 4 #define O_ARC 5 #define O_COMPOUND 6 #define O_END_COMPOUND -O_COMPOUND #define O_ALL_OBJECT 99 /********************* object masks for update ************************/ #define M_NONE 0x000 #define M_POLYLINE_POLYGON 0x001 #define M_POLYLINE_LINE 0x002 #define M_POLYLINE_BOX 0x004 /* includes ARCBOX */ #define M_SPLINE_O_NORMAL 0x008 #define M_SPLINE_C_NORMAL 0x010 #define M_SPLINE_O_INTERP 0x020 #define M_SPLINE_C_INTERP 0x040 #define M_TEXT_NORMAL 0x080 #define M_TEXT_HIDDEN 0x100 #define M_ARC 0x200 #define M_ELLIPSE 0x400 #define M_COMPOUND 0x800 #define M_TEXT (M_TEXT_HIDDEN | M_TEXT_NORMAL) #define M_SPLINE_O (M_SPLINE_O_NORMAL | M_SPLINE_O_INTERP) #define M_SPLINE_C (M_SPLINE_C_NORMAL | M_SPLINE_C_INTERP) #define M_SPLINE_NORMAL (M_SPLINE_O_NORMAL | M_SPLINE_C_NORMAL) #define M_SPLINE_INTERP (M_SPLINE_O_INTERP | M_SPLINE_C_INTERP) #define M_SPLINE (M_SPLINE_NORMAL | M_SPLINE_INTERP) #define M_POLYLINE (M_POLYLINE_LINE | M_POLYLINE_POLYGON | M_POLYLINE_BOX) #define M_VARPTS_OBJECT (M_POLYLINE_LINE | M_POLYLINE_POLYGON | M_SPLINE) #define M_OPEN_OBJECT (M_POLYLINE_LINE | M_SPLINE_O | M_ARC) #define M_ROTATE_ANGLE (M_VARPTS_OBJECT | M_ARC | M_TEXT | M_COMPOUND | M_ELLIPSE) #define M_ELLTEXTANGLE (M_ELLIPSE | M_TEXT) #define M_OBJECT (M_ELLIPSE | M_POLYLINE | M_SPLINE | M_TEXT | M_ARC) #define M_NO_TEXT (M_ELLIPSE | M_POLYLINE | M_SPLINE | M_COMPOUND | M_ARC) #define M_ALL (M_OBJECT | M_COMPOUND) /************************ Objects **********************/ extern F_compound objects; /************ global working pointers ************/ extern F_line *cur_l, *new_l, *old_l; extern F_arc *cur_a, *new_a, *old_a; extern F_ellipse *cur_e, *new_e, *old_e; extern F_text *cur_t, *new_t, *old_t; extern F_spline *cur_s, *new_s, *old_s; extern F_compound *cur_c, *new_c, *old_c; extern F_point *first_point, *cur_point; extern F_linkinfo *cur_links; /*************** object attribute settings ***********/ /* Lines */ extern int cur_linewidth; extern int cur_linestyle; extern float cur_dashlength; extern float cur_dotgap; extern float cur_styleval; extern int pen_size; extern int pen_type; extern Color cur_color; extern int cur_boxradius; extern int cur_fillstyle; extern int cur_arrowmode; /* Text */ extern int cur_fontsize; /* font size */ extern int cur_latex_font; extern int cur_ps_font; extern int cur_textjust; extern int cur_textflags; /* Misc */ extern float cur_elltextangle;