1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: sgp.h,v 1.7 2000/05/24 22:48:17 kevin Exp $
7 ** Revision 1.7 2000/05/24 22:48:17 kevin
8 ** First functional version of SDF library for X-window
10 ** Revision 1.6 2000/05/11 14:07:00 kevin
11 ** Added support for Windows NT
13 ** Revision 1.5 2000/05/07 12:46:19 kevin
14 ** made c++ compatible
16 ** Revision 1.4 2000/04/30 19:17:35 kevin
17 ** Set up include files for conditional INTERACTIVE_GRAPHICS
19 ** Revision 1.3 2000/04/28 18:35:21 kevin
20 ** removed unused files
22 ** Revision 1.2 2000/04/28 14:14:16 kevin
23 ** *** empty log message ***
26 ** This program is free software; you can redistribute it and/or modify
27 ** it under the terms of the GNU General Public License (version 2) as
28 ** published by the Free Software Foundation.
30 ** This program is distributed in the hope that it will be useful,
31 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
32 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33 ** GNU General Public License for more details.
35 ** You should have received a copy of the GNU General Public License
36 ** along with this program; if not, write to the Free Software
37 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 ******************************************************************************/
40 /*----------------------------------------------------------------------*/
41 /* Standard Graphics Package Header File */
42 /*----------------------------------------------------------------------*/
61 #endif /* __cplusplus */
74 #define LS_SOLID 0xffff
75 #define LS_DASH1 0xff00
76 #define LS_DASH2 0xf0f0
77 #define LS_DASH3 0xcccc
78 #define LS_DASH4 0xff3e
79 #define LS_DOTTED 0xaaaa
86 struct sgp_window_st {
87 int pw_xsize; /* Physical Window size */
91 double xw_min; /* Window extents */
95 double xv_min; /* Viewport extents */
99 double view[4]; /* Viewport array for clip_rect() */
100 double curx; /* Current stylus position in world coords */
102 int recalc_mc_to_ndc;
103 int recalc_ndc_to_mc;
104 GRFMTX_2D wc_to_ndc_x; /* World coord to NDC matrix */
105 GRFMTX_2D mc_to_ndc_x; /* Master to NDC */
106 GRFMTX_2D ndc_to_mc_x; /* NDC to Master */
107 GRFMTX_2D ctm_2_x; /* Current transfromation matrix */
113 typedef struct sgp_window_st SGP_WINDOW;
114 typedef struct sgp_window_st *SGP_ID;
117 int open; /* TRUE if device is open for output */
118 int xsize, ysize; /* Size of device in pixels */
119 int xmin, ymin; /* smallest coordinates */
120 int xmax, ymax; /* Maximum coordinates */
121 int colormax; /* Maximum color number of device */
122 int style; /* Current linestyle of device */
123 int width; /* Current width of device */
124 int color; /* Current color of device */
125 int icurx, icury; /* Current position */
126 int icwidth, icheight; /* Size of characters in pixels */
127 int cfore, cback; /* Character foregnd & backgnd colors */
128 float asp; /* Aspect ratio. Multipy x coord */
129 int (*dotfunc)(int x1, int y1, int color); /* Dot function for device */
130 int (*linefunc)(int x1, int y1, int x2, int y2, int color); /* Line function for device */
131 unsigned int nbytes; /* Size of buffer in bytes */
132 char *buf; /* Pointer to buffer */
133 unsigned int bufseg, bufoff; /* Buffer memory location */
134 int mode; /* Device mode */
138 float width, height; /* size of characters in NDC */
139 float textangle; /* text angle in radians */
140 float charupangle; /* character up angle */
141 int font; /* font for characters */
142 int updir, textdir; /* text direct & character orientation */
143 int fore, back; /* foreground & background color */
144 /* if back = -1, then transparent back */
148 int foregnd, backgnd; /* current foregound & background colors */
149 int linestyle; /* current 16 bit linestyle */
150 int linewidth; /* current width of line (in pixels) */
151 int marktype; /* current marker type */
152 int markcolor; /* current marker color */
153 float xndc, yndc; /* current position in NDC */
156 typedef struct device_st DEVICE;
157 typedef struct charsp_st CHARSPEC;
158 typedef struct state_st GRFSTATE;
160 struct point {double x, y, z;};
165 /* Flagcodes for motion directions */
166 #define XPLUS 001 /* right */
167 #define XMINUS 002 /* left */
168 #define YPLUS 004 /* up */
169 #define YMINUS 010 /* down */
171 /* Codes for marker symbols */
172 #define POINT 0 /* small dot */
173 #define SQUARE 1 /* empty square */
174 #define FSQUARE 2 /* filled square */
175 #define DIAMOND 3 /* empty diamond */
176 #define FDIAMOND 4 /* filled diamond */
177 #define CROSS 5 /* cross */
178 #define XCROSS 6 /* x */
179 #define CERCLE 7 /* open circle */
180 #define FCERCLE 8 /* filled circle */
181 #define BSQUARE 9 /* big open square */
182 #define BDIAMOND 10 /* big open diamond */
184 #define NMARKERS 11 /* Number of available symbol types */
186 /*-------------------------------------------------------------------------*/
188 #define PSET 0 /* codes for raster merging */
194 /*-------------------------------------------------------------------------*/
197 void sgp2_draw_circle(const double r);
198 void sgp2_draw_arc(double start, double stop, const double r);
201 void ctm_xlat_pre_2(double x, double y);
202 void ctm_xlat_post_2(double x, double y);
203 void ctm_scale_pre_2(double sx, double sy);
204 void ctm_scale_post_2(double sx, double sy);
205 void ctm_rotate_pre_2(double theta);
206 void ctm_rotate_post_2(double theta);
207 void ctm_shear_pre_2(double shrx, double shry);
208 void ctm_shear_post_2(double shrx, double shry);
209 void xlat_gmtx_2(GRFMTX_2D m, double x, double y);
210 void scale_gmtx_2(GRFMTX_2D m, double sx, double sy);
211 void shear_gmtx_2(GRFMTX_2D m, double shrx, double shry);
212 void rotate_gmtx_2(GRFMTX_2D m, double theta);
213 void ident_gmtx_2(GRFMTX_2D m);
214 void mult_gmtx_2(GRFMTX_2D a, GRFMTX_2D b, GRFMTX_2D c);
215 void invert_gmtx_2(GRFMTX_2D a, GRFMTX_2D b);
216 double determ_gmtx_2(GRFMTX_2D a);
219 void sgp2_draw_rect (double xmin, double ymin, double xmax, double ymax);
222 SGP_ID sgp2_init (int xsize, int ysize, const char *title);
223 void sgp2_close (SGP_ID gid);
224 void sgp2_set_active_win (SGP_ID);
225 SGP_ID sgp2_get_active_win (void);
226 void sgp2_clear (void);
227 void sgp2_window(double xmin, double ymin, double xmax, double ymax);
228 void sgp2_viewport(double xmin, double ymin, double xmax, double ymax);
229 void sgp2_frame_vpt(void);
230 void calc_wc_to_ndc(void);
231 void calc_ndc_to_mc(void);
232 void wc_to_ndc(double xw, double yw, double *xn, double *yn);
233 void ndc_to_wc(double xn, double yn, double *xw, double *yw);
234 void sgp2_color(int icol);
235 void sgp2_line_style(int style);
236 void sgp2_line_abs(double x, double y);
237 void sgp2_move_abs(double x, double y);
238 void sgp2_line_rel(double x, double y);
239 void sgp2_move_rel(double x, double y);
240 void sgp2_draw_text(char *message);
241 void sgp2_polyline_abs(double x[], double y[], int n);
242 void sgp2_mark_abs(double x, double y);
243 void sgp2_mark_rel(double x, double y);
244 void sgp2_point_abs(double x, double y);
245 void sgp2_point_rel(double x, double y);
246 void charsize(double wid, double height);
247 void textangle(double angle);
248 void ctm_clr_2(void);
249 void ctm_get_2(GRFMTX_2D m);
250 void ctm_set_2(GRFMTX_2D m);
251 void ctm_pre_mult_2(GRFMTX_2D m);
252 void ctm_post_mult_2(GRFMTX_2D m);
255 int _sgp2_init_dev(SGP_ID gid);
256 int initdevice(int dev, int mode, int xsize, int ysize);
257 int opendevice(int dev);
258 void closedevice(int dev);
259 void termdevice(int dev);
260 void _sgp2_stylus(SGP_ID gid, double x, double y, int beam);
261 void pntndc (SGP_ID gid, double x, double y);
262 void markndc (SGP_ID gid, double x, double y);
263 GRFSTATE *inqstate(void);
264 void gp_set_aspect(int dev, double asp);
265 void setlinestyle(int style);
266 void setlinewidth(int wid);
267 DEVICE *inqdev(int dev);
268 void _sgp2_set_text(SGP_ID gid, double width, double height, double textangle, int font);
269 void settextclr(int fore, int back);
270 void setcolor(int fore);
271 void setbackg(int back);
272 int initmarker(int marker, int color);
273 int settextdir(int direction);
274 void _sgp2_dev_text(SGP_ID gid, char *message);
276 void flushdevice(int dev);
279 void wrtsymbol(int sym, int x, int y, DEVICE *dev);
280 void wrtchar(int ch, int x, int y, CHARSPEC *cspec, DEVICE *dev);
281 void wrttext(char txtstr[], int x, int y, CHARSPEC *cspec, DEVICE *dev);
282 void crtcolor(int mode, int *f, int *b);
286 #endif /* __cplusplus */