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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_300
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334_02
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object.h
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1991-02-05
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/*
* FIG : Facility for Interactive Generation of figures
*
* (c) copy right 1985 by Supoj Sutanthavibul (supoj@sally.utexas.edu)
* January 1985.
* 1st revision : Aug 1985.
* 2nd revision : Feb 1988.
*
* %W% %G%
*/
#define DEFAULT -1
typedef struct f_pattern {
int w, h;
int *p;
}
F_pattern;
typedef struct f_pen {
int x, y;
int *p;
}
F_pen;
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 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;
int color;
#define BLACK 0
int depth;
int direction;
float style_val;
float angle;
struct f_pen *pen;
struct f_pattern *area_fill;
#define UNFILLED (F_pattern *)0
#define BLACK_FILL (F_pattern *)1
#define DARK_GRAY_FILL (F_pattern *)2
#define MED_GRAY_FILL (F_pattern *)3
#define LIGHT_GRAY_FILL (F_pattern *)4
#define WHITE_FILL (F_pattern *)4
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 type;
#define T_3_POINTS_ARC 1
int style;
int thickness;
int color;
int depth;
struct f_pen *pen;
struct f_pattern *area_fill;
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;
typedef struct f_line {
int type;
#define T_POLYLINE 1
#define T_BOX 2
#define T_POLYGON 3
int style;
int thickness;
int color;
int depth;
float style_val;
struct f_pen *pen;
struct f_pattern *area_fill;
struct f_arrow *for_arrow;
struct f_arrow *back_arrow;
struct f_point *points;
struct f_line *next;
}
F_line;
typedef struct f_text {
int type;
#define T_LEFT_JUSTIFIED 0
#define T_CENTER_JUSTIFIED 1
#define T_RIGHT_JUSTIFIED 2
int font;
#define DEFAULT_FONT 0
#define ROMAN_FONT 1
#define BOLD_FONT 2
#define ITALIC_FONT 3
#define MODERN_FONT 4
#define TYPEWRITER_FONT 5
int size; /* point size */
int color;
int depth;
float angle; /* in radian */
int style;
#define PLAIN 1
#define ITALIC 2
#define BOLD 4
#define OUTLINE 8
#define SHADOW 16
int height; /* pixels */
int length; /* pixels */
int base_x;
int base_y;
struct f_pen *pen;
char *cstring;
struct f_text *next;
}
F_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 type;
#define T_OPEN_NORMAL 0
#define T_CLOSED_NORMAL 1
#define T_OPEN_INTERPOLATED 2
#define T_CLOSED_INTERPOLATED 3
int style;
int thickness;
int color;
int depth;
float style_val;
struct f_pen *pen;
struct f_pattern *area_fill;
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_INTERPOLATED and T_CLOSED_INTERPOLTED
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 {
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;
#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)
/********************** 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 styles (except for f_text) ************/
#define SOLID_LINE 0
#define DASH_LINE 1
#define DOTTED_LINE 2
#define CLOSED_PATH 0
#define OPEN_PATH 1