1 /* GNUPLOT - mouse.c */
2
3 /* driver independent mouse part. */
4
5 /*[
6 * Permission to use, copy, and distribute this software and its
7 * documentation for any purpose with or without fee is hereby granted,
8 * provided that the above copyright notice appear in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation.
11 *
12 * Permission to modify the software is granted, but not the right to
13 * distribute the complete modified source code. Modifications are to
14 * be distributed as patches to the released version. Permission to
15 * distribute binaries produced by compiling modified sources is granted,
16 * provided you
17 * 1. distribute the corresponding source modifications from the
18 * released version in the form of a patch file along with the binaries,
19 * 2. add special version identification to distinguish your version
20 * in addition to the base release version number,
21 * 3. provide your name and address as the primary contact for the
22 * support of your modified version, and
23 * 4. retain our contact information in regard to use of the base
24 * software.
25 * Permission to distribute the released version of the source code along
26 * with corresponding source modifications in the form of a patch file is
27 * granted with same provisions 2 through 4 for binary distributions.
28 *
29 * This software is provided "as is" without express or implied warranty
30 * to the extent permitted by applicable law.
31 ]*/
32
33 /*
34 * AUTHORS
35 *
36 * Original Software (October 1999 - January 2000):
37 * Pieter-Tjerk de Boer <ptdeboer@cs.utwente.nl>
38 * Petr Mikulik <mikulik@physics.muni.cz>
39 * Johannes Zellner <johannes@zellner.org>
40 */
41
42 #include "syscfg.h"
43 #include "stdfn.h"
44 #include "gp_types.h"
45
46 #define _MOUSE_C /* FIXME HBB 20010207: violates Codestyle */
47 #ifdef USE_MOUSE /* comment out whole file, otherwise... */
48
49 #include "mouse.h"
50 #include "pm3d.h"
51 #include "alloc.h"
52 #include "axis.h"
53 #include "command.h"
54 #include "datafile.h"
55 #include "gadgets.h"
56 #include "gp_time.h"
57 #include "graphics.h"
58 #include "graph3d.h"
59 #include "plot3d.h"
60 #include "readline.h"
61 #include "term_api.h"
62 #include "util3d.h"
63 #include "hidden3d.h"
64 #include "plot.h" /* for interactive */
65
66 #ifdef _Windows
67 # include "win/winmain.h"
68 #endif
69
70 #ifdef OS2
71 #include <os2.h>
72 #include "os2/pm_msgs.h"
73 #endif
74
75 /********************** variables ***********************************************************/
76 char mouse_fmt_default[] = "% #g";
77
78 mouse_setting_t default_mouse_setting = DEFAULT_MOUSE_SETTING;
79 mouse_setting_t mouse_setting = DEFAULT_MOUSE_SETTING;
80
81 /* "usual well-known" keycodes, i.e. those not listed in special_keys in mouse.h
82 */
83 static const struct gen_table usual_special_keys[] =
84 {
85 { "BackSpace", GP_BackSpace},
86 { "Tab", GP_Tab},
87 { "KP_Enter", GP_KP_Enter},
88 { "Return", GP_Return},
89 { "Escape", GP_Escape},
90 { "Delete", GP_Delete},
91 { NULL, 0}
92 };
93
94 /* the status of the shift, ctrl and alt keys
95 */
96 static int modifier_mask = 0;
97
98 /* Structure for the ruler: on/off, position,...
99 */
100 static struct {
101 TBOOLEAN on;
102 double x, y, x2, y2; /* ruler position in real units of the graph */
103 long px, py; /* ruler position in the viewport units */
104 } ruler = {
105 FALSE, 0, 0, 0, 0, 0, 0
106 };
107
108
109 /* the coordinates of the mouse cursor in gnuplot's internal coordinate system
110 */
111 static int mouse_x = -1, mouse_y = -1;
112
113
114 /* the "real" coordinates of the mouse cursor, i.e., in the user's coordinate
115 * system(s)
116 */
117 static double real_x, real_y, real_x2, real_y2;
118
119
120 /* status of buttons; button i corresponds to bit (1<<i) of this variable
121 */
122 static int button = 0;
123
124
125 /* variables for setting the zoom region:
126 */
127 /* flag, TRUE while user is outlining the zoom region */
128 static TBOOLEAN setting_zoom_region = FALSE;
129 /* coordinates of the first corner of the zoom region, in the internal
130 * coordinate system */
131 static int setting_zoom_x, setting_zoom_y;
132
133
134 /* variables for changing the 3D view:
135 */
136 /* do we allow motion to result in a replot right now? */
137 TBOOLEAN allowmotion = TRUE; /* used by pm.trm, too */
138 /* did we already postpone a replot because allowmotion was FALSE ? */
139 static TBOOLEAN needreplot = FALSE;
140 /* mouse position when dragging started */
141 static int start_x, start_y;
142 /* ButtonPress sets this to 0, ButtonMotion to 1 */
143 static int motion = 0;
144 /* values for rot_x and rot_z corresponding to zero position of mouse */
145 static float zero_rot_x, zero_rot_z;
146
147
148 /* bind related stuff */
149
150 typedef struct bind_t {
151 struct bind_t *prev;
152 int key;
153 char modifier;
154 char *command;
155 char *(*builtin) (struct gp_event_t * ge);
156 TBOOLEAN allwindows;
157 struct bind_t *next;
158 } bind_t;
159
160 static bind_t *bindings = (bind_t *) 0;
161 static const int NO_KEY = -1;
162 static TBOOLEAN trap_release = FALSE;
163
164 /* forward declarations */
165 static void alert __PROTO((void));
166 static void MousePosToGraphPosReal __PROTO((int xx, int yy, double *x, double *y, double *x2, double *y2));
167 static char *xy_format __PROTO((void));
168 static char *zoombox_format __PROTO((void));
169 static char *GetAnnotateString __PROTO((char *s, double x, double y, int mode, char *fmt));
170 static char *xDateTimeFormat __PROTO((double x, char *b, int mode));
171 static void GetRulerString __PROTO((char *p, double x, double y));
172 static void apply_zoom __PROTO((struct t_zoom * z));
173 static void do_zoom __PROTO((double xmin, double ymin, double x2min,
174 double y2min, double xmax, double ymax, double x2max, double y2max));
175 static void ZoomNext __PROTO((void));
176 static void ZoomPrevious __PROTO((void));
177 static void ZoomUnzoom __PROTO((void));
178 static void incr_mousemode __PROTO((const int amount));
179 static void UpdateStatuslineWithMouseSetting __PROTO((mouse_setting_t * ms));
180
181 static void event_keypress __PROTO((struct gp_event_t * ge, TBOOLEAN current));
182 static void ChangeView __PROTO((int x, int z));
183 static void ChangeAzimuth __PROTO((int x));
184 static void event_buttonpress __PROTO((struct gp_event_t * ge));
185 static void event_buttonrelease __PROTO((struct gp_event_t * ge));
186 static void event_motion __PROTO((struct gp_event_t * ge));
187 static void event_modifier __PROTO((struct gp_event_t * ge));
188 static void do_save_3dplot __PROTO((struct surface_points *, int, int));
189 static void load_mouse_variables __PROTO((double, double, TBOOLEAN, int));
190
191 static void do_zoom_in_around_mouse __PROTO((void));
192 static void do_zoom_out_around_mouse __PROTO((void));
193 static void do_zoom_in_X __PROTO((void));
194 static void do_zoom_out_X __PROTO((void));
195 static void do_zoom_scroll_up __PROTO((void));
196 static void do_zoom_scroll_down __PROTO((void));
197 static void do_zoom_scroll_left __PROTO((void));
198 static void do_zoom_scroll_right __PROTO((void));
199
200 /* builtins */
201 static char *builtin_autoscale __PROTO((struct gp_event_t * ge));
202 static char *builtin_toggle_border __PROTO((struct gp_event_t * ge));
203 static char *builtin_replot __PROTO((struct gp_event_t * ge));
204 static char *builtin_toggle_grid __PROTO((struct gp_event_t * ge));
205 static char *builtin_help __PROTO((struct gp_event_t * ge));
206 static char *builtin_set_plots_visible __PROTO((struct gp_event_t * ge));
207 static char *builtin_set_plots_invisible __PROTO((struct gp_event_t * ge));
208 static char *builtin_invert_plot_visibilities __PROTO((struct gp_event_t * ge));
209 static char *builtin_toggle_log __PROTO((struct gp_event_t * ge));
210 static char *builtin_nearest_log __PROTO((struct gp_event_t * ge));
211 static char *builtin_toggle_mouse __PROTO((struct gp_event_t * ge));
212 static char *builtin_toggle_ruler __PROTO((struct gp_event_t * ge));
213 static char *builtin_decrement_mousemode __PROTO((struct gp_event_t * ge));
214 static char *builtin_increment_mousemode __PROTO((struct gp_event_t * ge));
215 static char *builtin_toggle_polardistance __PROTO((struct gp_event_t * ge));
216 static char *builtin_toggle_verbose __PROTO((struct gp_event_t * ge));
217 static char *builtin_toggle_ratio __PROTO((struct gp_event_t * ge));
218 static char *builtin_zoom_next __PROTO((struct gp_event_t * ge));
219 static char *builtin_zoom_previous __PROTO((struct gp_event_t * ge));
220 static char *builtin_unzoom __PROTO((struct gp_event_t * ge));
221 static char *builtin_rotate_right __PROTO((struct gp_event_t * ge));
222 static char *builtin_rotate_up __PROTO((struct gp_event_t * ge));
223 static char *builtin_rotate_left __PROTO((struct gp_event_t * ge));
224 static char *builtin_rotate_down __PROTO((struct gp_event_t * ge));
225 static char *builtin_azimuth_left __PROTO((struct gp_event_t * ge));
226 static char *builtin_azimuth_right __PROTO((struct gp_event_t * ge));
227 static char *builtin_cancel_zoom __PROTO((struct gp_event_t * ge));
228 static char *builtin_zoom_in_around_mouse __PROTO((struct gp_event_t * ge));
229 static char *builtin_zoom_out_around_mouse __PROTO((struct gp_event_t * ge));
230 #if (0) /* Not currently used */
231 static char *builtin_zoom_scroll_left __PROTO((struct gp_event_t * ge));
232 static char *builtin_zoom_scroll_right __PROTO((struct gp_event_t * ge));
233 static char *builtin_zoom_scroll_up __PROTO((struct gp_event_t * ge));
234 static char *builtin_zoom_scroll_down __PROTO((struct gp_event_t * ge));
235 static char *builtin_zoom_in_X __PROTO((struct gp_event_t * ge));
236 static char *builtin_zoom_out_X __PROTO((struct gp_event_t * ge));
237 #endif
238
239 /* prototypes for bind stuff
240 * which are used only here. */
241 static void bind_install_default_bindings __PROTO((void));
242 static void bind_clear __PROTO((bind_t * b));
243 static int lookup_key __PROTO((char *ptr, int *len));
244 static int bind_scan_lhs __PROTO((bind_t * out, const char *in));
245 static char *bind_fmt_lhs __PROTO((const bind_t * in));
246 static int bind_matches __PROTO((const bind_t * a, const bind_t * b));
247 static void bind_display_one __PROTO((bind_t * ptr));
248 static void bind_display __PROTO((char *lhs));
249 static void bind_all __PROTO((char *lhs));
250 static void bind_remove __PROTO((bind_t * b));
251 static void bind_append __PROTO((char *lhs, char *rhs, char *(*builtin) (struct gp_event_t * ge)));
252 static void recalc_ruler_pos __PROTO((void));
253 static void turn_ruler_off __PROTO((void));
254 static int nearest_label_tag __PROTO((int x, int y));
255 static void remove_label __PROTO((int x, int y));
256 static void put_label __PROTO((char *label, double x, double y));
257
258 /********* functions ********************************************/
259
260 /* produce a beep */
261 static void
alert()262 alert()
263 {
264 # ifdef OS2
265 DosBeep(444, 111);
266 # else
267 # ifdef HAVE_LIBREADLINE
268 # if !defined(MISSING_RL_DING)
269 rl_ding();
270 # endif
271 fflush(rl_outstream);
272 # else
273 fprintf(stderr, "\a");
274 # endif
275 # endif
276 }
277
278 /* always include the prototype. The prototype might even not be
279 * declared if the system supports stpcpy(). E.g. on Linux I would
280 * have to define __USE_GNU before including string.h to get the
281 * prototype (joze) */
282 /* HBB 20001109: *BUT* if a prototype is there, this one may easily
283 * conflict with it... */
284 char *stpcpy __PROTO((char *s, const char *p));
285
286 # ifndef HAVE_STPCPY
287 /* handy function for composing strings; note: some platforms may
288 * already provide it, how should we handle that? autoconf? -- ptdb */
289 char *
stpcpy(char * s,const char * p)290 stpcpy(char *s, const char *p)
291 {
292 strcpy(s, p);
293 return s + strlen(p);
294 }
295 # endif
296
297
298 /* main job of transformation, which is not device dependent
299 */
300 static void
MousePosToGraphPosReal(int xx,int yy,double * x,double * y,double * x2,double * y2)301 MousePosToGraphPosReal(int xx, int yy, double *x, double *y, double *x2, double *y2)
302 {
303 if (!is_3d_plot) {
304 if (plot_bounds.xright == plot_bounds.xleft)
305 *x = *x2 = VERYLARGE; /* protection */
306 else {
307 *x = AXIS_MAPBACK(FIRST_X_AXIS, xx);
308 *x2 = AXIS_MAPBACK(SECOND_X_AXIS, xx);
309 }
310 if (plot_bounds.ytop == plot_bounds.ybot)
311 *y = *y2 = VERYLARGE; /* protection */
312 else {
313 *y = AXIS_MAPBACK(FIRST_Y_AXIS, yy);
314 *y2 = AXIS_MAPBACK(SECOND_Y_AXIS, yy);
315 }
316 FPRINTF((stderr, "POS: xx=%i, yy=%i => x=%g y=%g\n", xx, yy, *x, *y));
317
318 } else {
319 /* for 3D plots, we treat the mouse position as if it is
320 * in the bottom plane, i.e., the plane of the x and y axis */
321 /* note: at present, this projection is only correct if
322 * surface_rot_z is a multiple of 90 degrees! */
323 /* HBB 20010522: added protection against division by zero
324 * for cases like 'set view 90,0' */
325 xx -= axis3d_o_x;
326 yy -= axis3d_o_y;
327 if (abs(axis3d_x_dx) > abs(axis3d_x_dy)) {
328 *x = axis_array[FIRST_X_AXIS].min
329 + ((double) xx) / axis3d_x_dx * (axis_array[FIRST_X_AXIS].max -
330 axis_array[FIRST_X_AXIS].min);
331 } else if (axis3d_x_dy != 0) {
332 *x = axis_array[FIRST_X_AXIS].min
333 + ((double) yy) / axis3d_x_dy * (axis_array[FIRST_X_AXIS].max -
334 axis_array[FIRST_X_AXIS].min);
335 } else {
336 /* both diffs are zero (x axis points into the screen */
337 *x = VERYLARGE;
338 }
339
340 if (abs(axis3d_y_dx) > abs(axis3d_y_dy)) {
341 *y = axis_array[FIRST_Y_AXIS].min
342 + ((double) xx) / axis3d_y_dx * (axis_array[FIRST_Y_AXIS].max -
343 axis_array[FIRST_Y_AXIS].min);
344 } else if (axis3d_y_dy != 0) {
345 if (splot_map)
346 *y = axis_array[FIRST_Y_AXIS].max
347 + ((double) yy) / axis3d_y_dy * (axis_array[FIRST_Y_AXIS].min -
348 axis_array[FIRST_Y_AXIS].max);
349 else
350 *y = axis_array[FIRST_Y_AXIS].min
351 + ((double) yy) / axis3d_y_dy * (axis_array[FIRST_Y_AXIS].max -
352 axis_array[FIRST_Y_AXIS].min);
353 } else {
354 /* both diffs are zero (y axis points into the screen */
355 *y = VERYLARGE;
356 }
357
358 *x2 = *y2 = VERYLARGE; /* protection */
359 }
360 /*
361 Note: there is plot_bounds.xleft+0.5 in "#define map_x" in graphics.c, which
362 makes no major impact here. It seems that the mistake of the real
363 coordinate is at about 0.5%, which corresponds to the screen resolution.
364 It would be better to round the distance to this resolution, and thus
365 *x = xmin + rounded-to-screen-resolution (xdistance)
366 */
367
368 /* Now take into account possible log scales of x and y axes */
369 *x = AXIS_DE_LOG_VALUE(FIRST_X_AXIS, *x);
370 *y = AXIS_DE_LOG_VALUE(FIRST_Y_AXIS, *y);
371 if (!is_3d_plot) {
372 *x2 = AXIS_DE_LOG_VALUE(SECOND_X_AXIS, *x2);
373 *y2 = AXIS_DE_LOG_VALUE(SECOND_Y_AXIS, *y2);
374 }
375
376 /* If x2 or y2 is linked to a primary axis via mapping function, apply it now */
377 if (!is_3d_plot) {
378 AXIS *secondary = &axis_array[SECOND_X_AXIS];
379 if (secondary->linked_to_primary && secondary->link_udf->at)
380 *x2 = eval_link_function(secondary, *x);
381 secondary = &axis_array[SECOND_Y_AXIS];
382 if (secondary->linked_to_primary && secondary->link_udf->at)
383 *y2 = eval_link_function(secondary, *y);
384 }
385
386 #ifdef NONLINEAR_AXES
387 /* If x or y is linked to a (hidden) primary axis, it's a bit more complicated */
388 if (!is_3d_plot) {
389 AXIS *secondary;
390 secondary = &axis_array[FIRST_X_AXIS];
391 if (secondary->linked_to_primary
392 && secondary->linked_to_primary->index == -FIRST_X_AXIS) {
393 *x = axis_mapback(secondary->linked_to_primary, xx);
394 *x = eval_link_function(secondary, *x);
395 }
396 secondary = &axis_array[FIRST_Y_AXIS];
397 if (secondary->linked_to_primary
398 && secondary->linked_to_primary->index == -FIRST_Y_AXIS) {
399 *y = axis_mapback(secondary->linked_to_primary, yy);
400 *y = eval_link_function(secondary, *y);
401 }
402 secondary = &axis_array[SECOND_X_AXIS];
403 if (secondary->linked_to_primary
404 && secondary->linked_to_primary->index == -SECOND_X_AXIS) {
405 *x2 = axis_mapback(secondary->linked_to_primary, xx);
406 *x2 = eval_link_function(secondary, *x2);
407 }
408 secondary = &axis_array[SECOND_Y_AXIS];
409 if (secondary->linked_to_primary
410 && secondary->linked_to_primary->index == -SECOND_Y_AXIS) {
411 *y2 = axis_mapback(secondary->linked_to_primary, yy);
412 *y2 = eval_link_function(secondary, *y2);
413 }
414 }
415 #endif
416
417 }
418
419 static char *
xy_format()420 xy_format()
421 {
422 static char format[64];
423 format[0] = NUL;
424 strncat(format, mouse_setting.fmt, 30);
425 strncat(format, ", ", 2);
426 strncat(format, mouse_setting.fmt, 30);
427 return format;
428 }
429
430 static char *
zoombox_format()431 zoombox_format()
432 {
433 static char format[64];
434 format[0] = NUL;
435 strncat(format, mouse_setting.fmt, 30);
436 strncat(format, "\r", 2);
437 strncat(format, mouse_setting.fmt, 30);
438 return format;
439 }
440
441 /* formats the information for an annotation (middle mouse button clicked)
442 */
443 static char *
GetAnnotateString(char * s,double x,double y,int mode,char * fmt)444 GetAnnotateString(char *s, double x, double y, int mode, char *fmt)
445 {
446 if (axis_array[FIRST_X_AXIS].datatype == DT_DMS
447 || axis_array[FIRST_Y_AXIS].datatype == DT_DMS) {
448 static char dms_format[16];
449 sprintf(dms_format, "%%D%s%%.2m'", degree_sign);
450 if (axis_array[FIRST_X_AXIS].datatype == DT_DMS)
451 gstrdms(s, fmt ? fmt : dms_format, x);
452 else
453 sprintf(s, mouse_setting.fmt, x);
454 strcat(s,", ");
455 s += strlen(s);
456 if (axis_array[FIRST_Y_AXIS].datatype == DT_DMS)
457 gstrdms(s, fmt ? fmt : dms_format, y);
458 else
459 sprintf(s, mouse_setting.fmt, y);
460 s += strlen(s);
461 } else if (mode == MOUSE_COORDINATES_XDATE || mode == MOUSE_COORDINATES_XTIME || mode == MOUSE_COORDINATES_XDATETIME || mode == MOUSE_COORDINATES_TIMEFMT) { /* time is on the x axis */
462 char buf[0xff];
463 char format[0xff] = "[%s, ";
464 strcat(format, mouse_setting.fmt);
465 strcat(format, "]");
466 sprintf(s, format, xDateTimeFormat(x, buf, mode), y);
467 } else if (mode == MOUSE_COORDINATES_FRACTIONAL) {
468 double xrange = axis_array[FIRST_X_AXIS].max - axis_array[FIRST_X_AXIS].min;
469 double yrange = axis_array[FIRST_Y_AXIS].max - axis_array[FIRST_Y_AXIS].min;
470 /* calculate fractional coordinates.
471 * prevent division by zero */
472 if (xrange) {
473 char format[0xff] = "/";
474 strcat(format, mouse_setting.fmt);
475 sprintf(s, format, (x - axis_array[FIRST_X_AXIS].min) / xrange);
476 } else {
477 sprintf(s, "/(undefined)");
478 }
479 s += strlen(s);
480 if (yrange) {
481 char format[0xff] = ", ";
482 strcat(format, mouse_setting.fmt);
483 strcat(format, "/");
484 sprintf(s, format, (y - axis_array[FIRST_Y_AXIS].min) / yrange);
485 } else {
486 sprintf(s, ", (undefined)/");
487 }
488 } else if (mode == MOUSE_COORDINATES_REAL1) {
489 sprintf(s, xy_format(), x, y); /* w/o brackets */
490 } else if (mode == MOUSE_COORDINATES_ALT && (fmt || polar)) {
491 if (polar) {
492 double r;
493 double phi = atan2(y,x);
494 double rmin = (R_AXIS.autoscale & AUTOSCALE_MIN) ? 0.0 : R_AXIS.set_min;
495 double theta = phi / DEG2RAD;
496
497 /* Undo "set theta" */
498 theta = (theta - theta_origin) * theta_direction;
499 if (theta > 180.)
500 theta = theta - 360.;
501
502 if (nonlinear(&R_AXIS))
503 r = eval_link_function(&R_AXIS, x/cos(phi) + R_AXIS.linked_to_primary->min);
504 else if (R_AXIS.log)
505 r = AXIS_UNDO_LOG(POLAR_AXIS, x/cos(phi) + AXIS_DO_LOG(POLAR_AXIS, rmin));
506 else if (inverted_raxis)
507 r = rmin - x/cos(phi);
508 else
509 r = rmin + x/cos(phi);
510
511 if (fmt)
512 sprintf(s, fmt, theta, r);
513 else {
514 sprintf(s, "theta: %.1f%s r: %g", theta, degree_sign, r);
515 }
516 } else {
517 sprintf(s, fmt, x, y); /* user defined format */
518 }
519 } else {
520 sprintf(s, xy_format(), x, y); /* usual x,y values */
521 }
522 return s + strlen(s);
523 }
524
525
526 /* Format x according to the date/time mouse mode. Uses and returns b as
527 a buffer
528 */
529 static char *
xDateTimeFormat(double x,char * b,int mode)530 xDateTimeFormat(double x, char *b, int mode)
531 {
532 struct tm tm;
533
534 switch (mode) {
535 case MOUSE_COORDINATES_XDATE:
536 ggmtime(&tm, x);
537 sprintf(b, "%d. %d. %04d", tm.tm_mday, tm.tm_mon + 1, tm.tm_year);
538 break;
539 case MOUSE_COORDINATES_XTIME:
540 ggmtime(&tm, x);
541 sprintf(b, "%d:%02d", tm.tm_hour, tm.tm_min);
542 break;
543 case MOUSE_COORDINATES_XDATETIME:
544 ggmtime(&tm, x);
545 sprintf(b, "%d. %d. %04d %d:%02d", tm.tm_mday, tm.tm_mon + 1, tm.tm_year,
546 tm.tm_hour, tm.tm_min);
547 break;
548 case MOUSE_COORDINATES_TIMEFMT:
549 /* FIXME HBB 20000507: timefmt is for *reading* timedata, not
550 * for writing them! */
551 gstrftime(b, 0xff, timefmt, x);
552 break;
553 default:
554 sprintf(b, mouse_setting.fmt, x);
555 }
556 return b;
557 }
558
559
560
561 /* HBB 20000507: fixed a construction error. Was using the 'timefmt'
562 * string (which is for reading, not writing time data) to output the
563 * value. Code is now closer to what setup_tics does. */
564 #define MKSTR(sp,x,axis) \
565 do { \
566 if (x >= VERYLARGE) break; \
567 if (axis_array[axis].datatype == DT_TIMEDATE) { \
568 char *format = copy_or_invent_formatstring(&axis_array[axis]); \
569 while (strchr(format,'\n')) \
570 *(strchr(format,'\n')) = ' '; \
571 gstrftime(sp, 40, format, x); \
572 } else { \
573 sprintf(sp, mouse_setting.fmt ,x); \
574 } \
575 sp += strlen(sp); \
576 } while (0)
577
578
579 /* ratio for log, distance for linear */
580 # define DIST(x,rx,axis) \
581 (axis_array[axis].log) \
582 ? ( (rx==0) ? 99999 : x / rx ) \
583 : (x - rx)
584
585
586 /* formats the ruler information (position, distance,...) into string p
587 (it must be sufficiently long)
588 x, y is the current mouse position in real coords (for the calculation
589 of distance)
590 */
591 static void
GetRulerString(char * p,double x,double y)592 GetRulerString(char *p, double x, double y)
593 {
594 double dx, dy;
595
596 char format[0xff] = " ruler: [";
597 strcat(format, mouse_setting.fmt);
598 strcat(format, ", ");
599 strcat(format, mouse_setting.fmt);
600 strcat(format, "] distance: ");
601 strcat(format, mouse_setting.fmt);
602 strcat(format, ", ");
603 strcat(format, mouse_setting.fmt);
604
605 dx = DIST(x, ruler.x, FIRST_X_AXIS);
606 dy = DIST(y, ruler.y, FIRST_Y_AXIS);
607 sprintf(p, format, ruler.x, ruler.y, dx, dy);
608
609 /* Previously, the following "if" let the polar coordinates to be shown only
610 for lin-lin plots:
611 if (mouse_setting.polardistance && !axis_array[FIRST_X_AXIS].log && !axis_array[FIRST_Y_AXIS].log) ...
612 Now, let us support also semilog and log-log plots.
613 Values of mouse_setting.polardistance are:
614 0 (no polar coordinates), 1 (polar coordinates), 2 (tangent instead of angle).
615 */
616 if (mouse_setting.polardistance) {
617 double rho, phi, rx, ry;
618 char ptmp[69];
619 x = AXIS_LOG_VALUE(FIRST_X_AXIS, x);
620 y = AXIS_LOG_VALUE(FIRST_Y_AXIS, y);
621 rx = AXIS_LOG_VALUE(FIRST_X_AXIS, ruler.x);
622 ry = AXIS_LOG_VALUE(FIRST_Y_AXIS, ruler.y);
623 format[0] = '\0';
624 strcat(format, " (");
625 strcat(format, mouse_setting.fmt);
626 rho = sqrt((x - rx) * (x - rx) + (y - ry) * (y - ry)); /* distance */
627 if (mouse_setting.polardistance == 1) { /* (distance, angle) */
628 phi = (180 / M_PI) * atan2(y - ry, x - rx);
629 # ifdef OS2
630 strcat(format, ";% #.4g�)");
631 # else
632 strcat(format, ", % #.4gdeg)");
633 # endif
634 } else { /* mouse_setting.polardistance==2: (distance, tangent) */
635 phi = x - rx;
636 phi = (phi == 0) ? ((y-ry>0) ? VERYLARGE : -VERYLARGE) : (y - ry)/phi;
637 sprintf(format+strlen(format), ", tangent=%s)", mouse_setting.fmt);
638 }
639 sprintf(ptmp, format, rho, phi);
640 strcat(p, ptmp);
641 }
642 }
643
644
645 static struct t_zoom *zoom_head = NULL, *zoom_now = NULL;
646 static AXIS *axis_array_copy = NULL;
647
648 /* Applies the zoom rectangle of z by sending the appropriate command
649 to gnuplot
650 */
651
652 static void
apply_zoom(struct t_zoom * z)653 apply_zoom(struct t_zoom *z)
654 {
655 int is_splot_map = (is_3d_plot && (splot_map == TRUE));
656
657 if (zoom_now != NULL) { /* remember the current zoom */
658 zoom_now->xmin = axis_array[FIRST_X_AXIS].set_min;
659 zoom_now->xmax = axis_array[FIRST_X_AXIS].set_max;
660 zoom_now->x2min = axis_array[SECOND_X_AXIS].set_min;
661 zoom_now->x2max = axis_array[SECOND_X_AXIS].set_max;
662 zoom_now->ymin = axis_array[FIRST_Y_AXIS].set_min;
663 zoom_now->ymax = axis_array[FIRST_Y_AXIS].set_max;
664 zoom_now->y2min = axis_array[SECOND_Y_AXIS].set_min;
665 zoom_now->y2max = axis_array[SECOND_Y_AXIS].set_max;
666 }
667
668 /* EAM DEBUG - The autoscale save/restore was too complicated, and
669 * broke refresh. Just save the complete axis state and have done with it.
670 */
671 if (zoom_now == zoom_head && z != zoom_head) {
672 axis_array_copy = gp_realloc( axis_array_copy, sizeof(axis_array), "axis_array copy");
673 memcpy(axis_array_copy, axis_array, sizeof(axis_array));
674 }
675
676 /* If we are zooming, we don't want to autoscale the range.
677 * This wasn't necessary before we introduced "refresh". Why?
678 */
679 if (zoom_now == zoom_head && z != zoom_head) {
680 axis_array[FIRST_X_AXIS].autoscale = AUTOSCALE_NONE;
681 axis_array[FIRST_Y_AXIS].autoscale = AUTOSCALE_NONE;
682 axis_array[SECOND_X_AXIS].autoscale = AUTOSCALE_NONE;
683 axis_array[SECOND_Y_AXIS].autoscale = AUTOSCALE_NONE;
684 }
685
686 zoom_now = z;
687 if (zoom_now == NULL) {
688 alert();
689 return;
690 }
691
692 /* Now we're committed. Notify the terminal the the next replot is a zoom */
693 (*term->layer)(TERM_LAYER_BEFORE_ZOOM);
694
695 /* New range on primary axes */
696 set_explicit_range(&axis_array[FIRST_X_AXIS], zoom_now->xmin, zoom_now->xmax);
697 set_explicit_range(&axis_array[FIRST_Y_AXIS], zoom_now->ymin, zoom_now->ymax);
698
699 /* EAM Apr 2013 - The tests on VERYLARGE protect against trying to */
700 /* interpret the autoscaling initial state as an actual limit value. */
701 if (!is_3d_plot
702 && (zoom_now->x2min < VERYLARGE && zoom_now->x2max > -VERYLARGE)) {
703 set_explicit_range(&axis_array[SECOND_X_AXIS], zoom_now->x2min, zoom_now->x2max);
704 }
705 if (!is_3d_plot
706 && (zoom_now->y2min < VERYLARGE && zoom_now->y2max > -VERYLARGE)) {
707 set_explicit_range(&axis_array[SECOND_Y_AXIS], zoom_now->y2min, zoom_now->y2max);
708 }
709
710 /* EAM Jun 2007 - The autoscale save/restore was too complicated, and broke
711 * refresh. Just save/restore the complete axis state and have done with it.
712 * Well, not _quite_ the complete state. The labels are maintained dynamically.
713 * Apr 2015 - The same is now true (dynamic storage) for ticfmt, formatstring.
714 */
715 if (zoom_now == zoom_head) {
716 int i;
717 for (i=0; i<AXIS_ARRAY_SIZE; i++) {
718 axis_array_copy[i].label = axis_array[i].label;
719 axis_array_copy[i].ticdef.def.user = axis_array[i].ticdef.def.user;
720 axis_array_copy[i].ticdef.font = axis_array[i].ticdef.font;
721 axis_array_copy[i].ticfmt = axis_array[i].ticfmt;
722 axis_array_copy[i].formatstring = axis_array[i].formatstring;
723 }
724 memcpy(axis_array, axis_array_copy, sizeof(axis_array));
725
726 /* The shadowed primary axis, if any, is not restored by the memcpy. */
727 /* We choose to recalculate the limits, but alternatively we could find */
728 /* some place to save/restore the unzoomed limits. */
729 if (nonlinear(&axis_array[FIRST_X_AXIS]))
730 clone_linked_axes(&axis_array[FIRST_X_AXIS], axis_array[FIRST_X_AXIS].linked_to_primary);
731 if (nonlinear(&axis_array[FIRST_Y_AXIS]))
732 clone_linked_axes(&axis_array[FIRST_Y_AXIS], axis_array[FIRST_Y_AXIS].linked_to_primary);
733
734 /* Falling through to do_string_replot() does not work! */
735 if (volatile_data) {
736 if (refresh_ok == E_REFRESH_OK_2D) {
737 refresh_request();
738 return;
739 }
740 if (is_splot_map && (refresh_ok == E_REFRESH_OK_3D)) {
741 refresh_request();
742 return;
743 }
744 }
745
746 } else {
747 inside_zoom = TRUE;
748 }
749
750 do_string_replot("");
751 inside_zoom = FALSE;
752 }
753
754
755 /* makes a zoom: update zoom history, call gnuplot to set ranges + replot
756 */
757
758 static void
do_zoom(double xmin,double ymin,double x2min,double y2min,double xmax,double ymax,double x2max,double y2max)759 do_zoom(double xmin, double ymin, double x2min, double y2min, double xmax, double ymax, double x2max, double y2max)
760 {
761 struct t_zoom *z;
762 if (zoom_head == NULL) { /* queue not yet created, thus make its head */
763 zoom_head = gp_alloc(sizeof(struct t_zoom), "mouse zoom history head");
764 zoom_head->prev = NULL;
765 zoom_head->next = NULL;
766 }
767 if (zoom_now == NULL)
768 zoom_now = zoom_head;
769 if (zoom_now->next == NULL) { /* allocate new item */
770 z = gp_alloc(sizeof(struct t_zoom), "mouse zoom history element");
771 z->prev = zoom_now;
772 z->next = NULL;
773 zoom_now->next = z;
774 z->prev = zoom_now;
775 } else /* overwrite next item */
776 z = zoom_now->next;
777
778 #define SET_AXIS(axis, name, minmax, condition) \
779 z->name ## minmax = (axis_array[axis].minmax condition) ? name ## minmax : axis_array[axis].minmax
780
781 SET_AXIS(FIRST_X_AXIS, x, min, < VERYLARGE);
782 SET_AXIS(FIRST_Y_AXIS, y, min, < VERYLARGE);
783 SET_AXIS(SECOND_X_AXIS, x2, min, < VERYLARGE);
784 SET_AXIS(SECOND_Y_AXIS, y2, min, < VERYLARGE);
785
786 SET_AXIS(FIRST_X_AXIS, x, max, > -VERYLARGE);
787 SET_AXIS(FIRST_Y_AXIS, y, max, > -VERYLARGE);
788 SET_AXIS(SECOND_X_AXIS, x2, max, > -VERYLARGE);
789 SET_AXIS(SECOND_Y_AXIS, y2, max, > -VERYLARGE);
790
791 #undef SET_AXIS
792
793 apply_zoom(z);
794 }
795
796
797 static void
ZoomNext()798 ZoomNext()
799 {
800 if (zoom_now == NULL || zoom_now->next == NULL)
801 alert();
802 else
803 apply_zoom(zoom_now->next);
804 if (display_ipc_commands()) {
805 fprintf(stderr, "next zoom.\n");
806 }
807 }
808
809 static void
ZoomPrevious()810 ZoomPrevious()
811 {
812 if (zoom_now == NULL || zoom_now->prev == NULL)
813 alert();
814 else
815 apply_zoom(zoom_now->prev);
816 if (display_ipc_commands()) {
817 fprintf(stderr, "previous zoom.\n");
818 }
819 }
820
821 static void
ZoomUnzoom()822 ZoomUnzoom()
823 {
824 if (zoom_head == NULL || zoom_now == zoom_head)
825 alert();
826 else
827 apply_zoom(zoom_head);
828 if (display_ipc_commands()) {
829 fprintf(stderr, "unzoom.\n");
830 }
831 }
832
833 static void
incr_mousemode(const int amount)834 incr_mousemode(const int amount)
835 {
836 long int old = mouse_mode;
837 mouse_mode += amount;
838 if (MOUSE_COORDINATES_ALT == mouse_mode && !(mouse_alt_string || polar))
839 mouse_mode += amount; /* stepping over */
840 if (mouse_mode > MOUSE_COORDINATES_ALT) {
841 mouse_mode = MOUSE_COORDINATES_REAL1;
842 } else if (mouse_mode <= MOUSE_COORDINATES_REAL) {
843 mouse_mode = MOUSE_COORDINATES_ALT;
844 if (!(mouse_alt_string || polar))
845 mouse_mode--; /* stepping over */
846 }
847 UpdateStatusline();
848 if (display_ipc_commands())
849 fprintf(stderr, "switched mouse format from %ld to %ld\n", old, mouse_mode);
850 }
851
852 # define TICS_ON(ti) (((ti)&TICS_MASK)!=NO_TICS)
853
854 void
UpdateStatusline()855 UpdateStatusline()
856 {
857 UpdateStatuslineWithMouseSetting(&mouse_setting);
858 }
859
860 static void
UpdateStatuslineWithMouseSetting(mouse_setting_t * ms)861 UpdateStatuslineWithMouseSetting(mouse_setting_t * ms)
862 {
863 char s0[256], *sp;
864
865 /* This suppresses mouse coordinate update after a ^C, but I think
866 * that the relevant terminals do their own checks anyhow so we
867 * we can just let the ones that care silently skip the update
868 * while the ones that don't care keep on updating as usual.
869 */
870 #if (0)
871 if (!term_initialised)
872 return;
873 #endif
874
875 if (!ms->on) {
876 s0[0] = 0;
877 } else if (!ALMOST2D) {
878 char format[0xff];
879 format[0] = '\0';
880 strcat(format, "view: ");
881 strcat(format, ms->fmt);
882 strcat(format, ", ");
883 strcat(format, ms->fmt);
884 strcat(format, " scale: ");
885 strcat(format, ms->fmt);
886 strcat(format, ", ");
887 strcat(format, ms->fmt);
888 sprintf(s0, format, surface_rot_x, surface_rot_z, surface_scale, surface_zscale);
889 } else if (!TICS_ON(axis_array[SECOND_X_AXIS].ticmode) && !TICS_ON(axis_array[SECOND_Y_AXIS].ticmode)) {
890 /* only first X and Y axis are in use */
891 sp = GetAnnotateString(s0, real_x, real_y, mouse_mode, mouse_alt_string);
892 if (ruler.on) {
893 GetRulerString(sp, real_x, real_y);
894 }
895 } else {
896 /* X2 and/or Y2 are in use: use more verbose format */
897 sp = s0;
898 if (TICS_ON(axis_array[FIRST_X_AXIS].ticmode)) {
899 sp = stpcpy(sp, "x=");
900 MKSTR(sp, real_x, FIRST_X_AXIS);
901 *sp++ = ' ';
902 }
903 if (TICS_ON(axis_array[FIRST_Y_AXIS].ticmode)) {
904 sp = stpcpy(sp, "y=");
905 MKSTR(sp, real_y, FIRST_Y_AXIS);
906 *sp++ = ' ';
907 }
908 if (TICS_ON(axis_array[SECOND_X_AXIS].ticmode)) {
909 sp = stpcpy(sp, "x2=");
910 MKSTR(sp, real_x2, SECOND_X_AXIS);
911 *sp++ = ' ';
912 }
913 if (TICS_ON(axis_array[SECOND_Y_AXIS].ticmode)) {
914 sp = stpcpy(sp, "y2=");
915 MKSTR(sp, real_y2, SECOND_Y_AXIS);
916 *sp++ = ' ';
917 }
918 if (ruler.on) {
919 /* ruler on? then also print distances to ruler */
920 if (TICS_ON(axis_array[FIRST_X_AXIS].ticmode)) {
921 stpcpy(sp,"dx=");
922 sprintf(sp+3, mouse_setting.fmt, DIST(real_x, ruler.x, FIRST_X_AXIS));
923 sp += strlen(sp);
924 }
925 if (TICS_ON(axis_array[FIRST_Y_AXIS].ticmode)) {
926 stpcpy(sp,"dy=");
927 sprintf(sp+3, mouse_setting.fmt, DIST(real_y, ruler.y, FIRST_Y_AXIS));
928 sp += strlen(sp);
929 }
930 if (TICS_ON(axis_array[SECOND_X_AXIS].ticmode)) {
931 stpcpy(sp,"dx2=");
932 sprintf(sp+4, mouse_setting.fmt, DIST(real_x2, ruler.x2, SECOND_X_AXIS));
933 sp += strlen(sp);
934 }
935 if (TICS_ON(axis_array[SECOND_Y_AXIS].ticmode)) {
936 stpcpy(sp,"dy2=");
937 sprintf(sp+4, mouse_setting.fmt, DIST(real_y2, ruler.y2, SECOND_Y_AXIS));
938 sp += strlen(sp);
939 }
940 }
941 *--sp = 0; /* delete trailing space */
942 }
943 if (term->put_tmptext) {
944 (term->put_tmptext) (0, s0);
945 }
946 }
947 #undef MKSTR
948
949
950 void
recalc_statusline()951 recalc_statusline()
952 {
953 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
954 UpdateStatusline();
955 }
956
957 /****************** handlers for user's actions ******************/
958
959 static char *
builtin_autoscale(struct gp_event_t * ge)960 builtin_autoscale(struct gp_event_t *ge)
961 {
962 if (!ge) {
963 return "`builtin-autoscale` (set autoscale keepfix; replot)";
964 }
965 do_string_replot("set autoscale keepfix");
966 return (char *) 0;
967 }
968
969 static char *
builtin_toggle_border(struct gp_event_t * ge)970 builtin_toggle_border(struct gp_event_t *ge)
971 {
972 if (!ge)
973 return "`builtin-toggle-border`";
974
975 /* EAM July 2009 Cycle through border settings
976 * - no border
977 * - last border requested by the user
978 * - default border
979 * - (3D only) full border
980 */
981 if (draw_border == 0 && draw_border != user_border)
982 draw_border = user_border;
983 else if (draw_border == user_border && draw_border != 31)
984 draw_border = 31;
985 else if (is_3d_plot && draw_border == 31)
986 draw_border = 4095;
987 else
988 draw_border = 0;
989
990 do_string_replot("");
991 return (char *) 0;
992 }
993
994 static char *
builtin_replot(struct gp_event_t * ge)995 builtin_replot(struct gp_event_t *ge)
996 {
997 if (!ge) {
998 return "`builtin-replot`";
999 }
1000 do_string_replot("");
1001 return (char *) 0;
1002 }
1003
1004 static char *
builtin_toggle_grid(struct gp_event_t * ge)1005 builtin_toggle_grid(struct gp_event_t *ge)
1006 {
1007 if (!ge) {
1008 return "`builtin-toggle-grid`";
1009 }
1010 if (! some_grid_selected())
1011 do_string_replot("set grid");
1012 else
1013 do_string_replot("unset grid");
1014 return (char *) 0;
1015 }
1016
1017 static char *
builtin_help(struct gp_event_t * ge)1018 builtin_help(struct gp_event_t *ge)
1019 {
1020 if (!ge) {
1021 return "`builtin-help`";
1022 }
1023 fprintf(stderr, "\n");
1024 bind_display((char *) 0); /* display all bindings */
1025 restore_prompt();
1026 return (char *) 0;
1027 }
1028
1029 static char *
builtin_set_plots_visible(struct gp_event_t * ge)1030 builtin_set_plots_visible(struct gp_event_t *ge)
1031 {
1032 if (!ge) {
1033 return "`builtin-set-plots-visible`";
1034 }
1035 if (term->modify_plots)
1036 term->modify_plots(MODPLOTS_SET_VISIBLE, -1);
1037 return (char *) 0;
1038 }
1039
1040 static char *
builtin_set_plots_invisible(struct gp_event_t * ge)1041 builtin_set_plots_invisible(struct gp_event_t *ge)
1042 {
1043 if (!ge) {
1044 return "`builtin-set-plots-invisible`";
1045 }
1046 if (term->modify_plots)
1047 term->modify_plots(MODPLOTS_SET_INVISIBLE, -1);
1048 return (char *) 0;
1049 }
1050
1051 static char *
builtin_invert_plot_visibilities(struct gp_event_t * ge)1052 builtin_invert_plot_visibilities(struct gp_event_t *ge)
1053 {
1054 if (!ge) {
1055 return "`builtin-invert-plot-visibilities`";
1056 }
1057 if (term->modify_plots)
1058 term->modify_plots(MODPLOTS_INVERT_VISIBILITIES, -1);
1059 return (char *) 0;
1060 }
1061
1062 static char *
builtin_toggle_log(struct gp_event_t * ge)1063 builtin_toggle_log(struct gp_event_t *ge)
1064 {
1065 if (!ge)
1066 return "`builtin-toggle-log` y logscale for plots, z and cb for splots";
1067
1068 if (volatile_data)
1069 int_warn(NO_CARET, "Cannot toggle log scale for volatile data");
1070 else if ((color_box.bounds.xleft < mouse_x && mouse_x < color_box.bounds.xright)
1071 && (color_box.bounds.ybot < mouse_y && mouse_y < color_box.bounds.ytop))
1072 do_string_replot( CB_AXIS.log ? "unset log cb" : "set log cb");
1073 else if (is_3d_plot && !splot_map)
1074 do_string_replot( Z_AXIS.log ? "unset log z" : "set log z");
1075 else
1076 do_string_replot( axis_array[FIRST_Y_AXIS].log ? "unset log y" : "set log y");
1077
1078 return (char *) 0;
1079 }
1080
1081 static char *
builtin_nearest_log(struct gp_event_t * ge)1082 builtin_nearest_log(struct gp_event_t *ge)
1083 {
1084 if (!ge)
1085 return "`builtin-nearest-log` toggle logscale of axis nearest cursor";
1086
1087 if ((color_box.bounds.xleft < mouse_x && mouse_x < color_box.bounds.xright)
1088 && (color_box.bounds.ybot < mouse_y && mouse_y < color_box.bounds.ytop)) {
1089 do_string_replot( CB_AXIS.log ? "unset log cb" : "set log cb");
1090 } else if (is_3d_plot && !splot_map) {
1091 do_string_replot( Z_AXIS.log ? "unset log z" : "set log z");
1092 } else {
1093 /* 2D-plot: figure out which axis/axes is/are
1094 * close to the mouse cursor, and toggle those lin/log */
1095 /* note: here it is assumed that the x axis is at
1096 * the bottom, x2 at top, y left and y2 right; it
1097 * would be better to derive that from the ..tics settings */
1098 TBOOLEAN change_x1 = FALSE;
1099 TBOOLEAN change_y1 = FALSE;
1100 TBOOLEAN change_x2 = FALSE;
1101 TBOOLEAN change_y2 = FALSE;
1102 if (mouse_y < plot_bounds.ybot + (plot_bounds.ytop - plot_bounds.ybot) / 4
1103 && mouse_x > plot_bounds.xleft && mouse_x < plot_bounds.xright)
1104 change_x1 = TRUE;
1105 if (mouse_x < plot_bounds.xleft + (plot_bounds.xright - plot_bounds.xleft) / 4
1106 && mouse_y > plot_bounds.ybot && mouse_y < plot_bounds.ytop)
1107 change_y1 = TRUE;
1108 if (mouse_y > plot_bounds.ytop - (plot_bounds.ytop - plot_bounds.ybot) / 4
1109 && mouse_x > plot_bounds.xleft && mouse_x < plot_bounds.xright)
1110 change_x2 = TRUE;
1111 if (mouse_x > plot_bounds.xright - (plot_bounds.xright - plot_bounds.xleft) / 4
1112 && mouse_y > plot_bounds.ybot && mouse_y < plot_bounds.ytop)
1113 change_y2 = TRUE;
1114
1115 if (change_x1)
1116 do_string(axis_array[FIRST_X_AXIS].log ? "unset log x" : "set log x");
1117 if (change_y1)
1118 do_string(axis_array[FIRST_Y_AXIS].log ? "unset log y" : "set log y");
1119 if (change_x2 && !splot_map)
1120 do_string(axis_array[SECOND_X_AXIS].log ? "unset log x2" : "set log x2");
1121 if (change_y2 && !splot_map)
1122 do_string(axis_array[SECOND_Y_AXIS].log ? "unset log y2" : "set log y2");
1123 if (!change_x1 && !change_y1 && splot_map)
1124 do_string_replot( Z_AXIS.log ? "unset log z" : "set log z");
1125
1126 if (change_x1 || change_y1 || change_x2 || change_y2)
1127 do_string_replot("");
1128 }
1129
1130 return (char *) 0;
1131 }
1132
1133 static char *
builtin_toggle_mouse(struct gp_event_t * ge)1134 builtin_toggle_mouse(struct gp_event_t *ge)
1135 {
1136 if (!ge) {
1137 return "`builtin-toggle-mouse`";
1138 }
1139 if (!mouse_setting.on) {
1140 mouse_setting.on = 1;
1141 if (display_ipc_commands()) {
1142 fprintf(stderr, "turning mouse on.\n");
1143 }
1144 } else {
1145 mouse_setting.on = 0;
1146 if (display_ipc_commands()) {
1147 fprintf(stderr, "turning mouse off.\n");
1148 }
1149 }
1150 if (term->set_cursor)
1151 term->set_cursor(0, 0, 0);
1152 # ifdef OS2
1153 PM_update_menu_items();
1154 # endif
1155 UpdateStatusline();
1156 return (char *) 0;
1157 }
1158
1159 static char *
builtin_toggle_ruler(struct gp_event_t * ge)1160 builtin_toggle_ruler(struct gp_event_t *ge)
1161 {
1162 if (!ge) {
1163 return "`builtin-toggle-ruler`";
1164 }
1165 if (!term->set_ruler)
1166 return (char *) 0;
1167 if (ruler.on) {
1168 turn_ruler_off();
1169 if (display_ipc_commands())
1170 fprintf(stderr, "turning ruler off.\n");
1171 } else if (ALMOST2D) {
1172 /* only allow ruler, if the plot
1173 * is 2d or a 3d `map' */
1174 struct udvt_entry *u;
1175 ruler.on = TRUE;
1176 ruler.px = ge->mx;
1177 ruler.py = ge->my;
1178 MousePosToGraphPosReal(ruler.px, ruler.py, &ruler.x, &ruler.y, &ruler.x2, &ruler.y2);
1179 (*term->set_ruler) (ruler.px, ruler.py);
1180 if ((u = add_udv_by_name("MOUSE_RULER_X"))) {
1181 Gcomplex(&u->udv_value,ruler.x,0);
1182 }
1183 if ((u = add_udv_by_name("MOUSE_RULER_Y"))) {
1184 Gcomplex(&u->udv_value,ruler.y,0);
1185 }
1186 if (display_ipc_commands()) {
1187 fprintf(stderr, "turning ruler on.\n");
1188 }
1189 }
1190 UpdateStatusline();
1191 return (char *) 0;
1192 }
1193
1194 static char *
builtin_decrement_mousemode(struct gp_event_t * ge)1195 builtin_decrement_mousemode(struct gp_event_t *ge)
1196 {
1197 if (!ge) {
1198 return "`builtin-previous-mouse-format`";
1199 }
1200 incr_mousemode(-1);
1201 return (char *) 0;
1202 }
1203
1204 static char *
builtin_increment_mousemode(struct gp_event_t * ge)1205 builtin_increment_mousemode(struct gp_event_t *ge)
1206 {
1207 if (!ge) {
1208 return "`builtin-next-mouse-format`";
1209 }
1210 incr_mousemode(1);
1211 return (char *) 0;
1212 }
1213
1214 static char *
builtin_toggle_polardistance(struct gp_event_t * ge)1215 builtin_toggle_polardistance(struct gp_event_t *ge)
1216 {
1217 if (!ge) {
1218 return "`builtin-toggle-polardistance`";
1219 }
1220 if (++mouse_setting.polardistance > 2) mouse_setting.polardistance = 0;
1221 /* values: 0 (no polar coordinates), 1 (polar coordinates), 2 (tangent instead of angle) */
1222 term->set_cursor((mouse_setting.polardistance ? -3:-4), ge->mx, ge->my); /* change cursor type */
1223 # ifdef OS2
1224 PM_update_menu_items();
1225 # endif
1226 UpdateStatusline();
1227 if (display_ipc_commands()) {
1228 fprintf(stderr, "distance to ruler will %s be shown in polar coordinates.\n", mouse_setting.polardistance ? "" : "not");
1229 }
1230 return (char *) 0;
1231 }
1232
1233 static char *
builtin_toggle_verbose(struct gp_event_t * ge)1234 builtin_toggle_verbose(struct gp_event_t *ge)
1235 {
1236 if (!ge) {
1237 return "`builtin-toggle-verbose`";
1238 }
1239 /* this is tricky as the command itself modifies
1240 * the state of display_ipc_commands() */
1241 if (display_ipc_commands()) {
1242 fprintf(stderr, "echoing of communication commands is turned off.\n");
1243 }
1244 toggle_display_of_ipc_commands();
1245 if (display_ipc_commands()) {
1246 fprintf(stderr, "communication commands will be echoed.\n");
1247 }
1248 return (char *) 0;
1249 }
1250
1251 static char *
builtin_toggle_ratio(struct gp_event_t * ge)1252 builtin_toggle_ratio(struct gp_event_t *ge)
1253 {
1254 if (!ge) {
1255 return "`builtin-toggle-ratio`";
1256 }
1257 if (aspect_ratio == 0)
1258 do_string_replot("set size ratio -1");
1259 else if (aspect_ratio == 1)
1260 do_string_replot("set size nosquare");
1261 else
1262 do_string_replot("set size square");
1263 return (char *) 0;
1264 }
1265
1266 static char *
builtin_zoom_next(struct gp_event_t * ge)1267 builtin_zoom_next(struct gp_event_t *ge)
1268 {
1269 if (!ge) {
1270 return "`builtin-zoom-next` go to next zoom in the zoom stack";
1271 }
1272 ZoomNext();
1273 return (char *) 0;
1274 }
1275
1276 static char *
builtin_zoom_previous(struct gp_event_t * ge)1277 builtin_zoom_previous(struct gp_event_t *ge)
1278 {
1279 if (!ge) {
1280 return "`builtin-zoom-previous` go to previous zoom in the zoom stack";
1281 }
1282 ZoomPrevious();
1283 return (char *) 0;
1284 }
1285
1286 static char *
builtin_unzoom(struct gp_event_t * ge)1287 builtin_unzoom(struct gp_event_t *ge)
1288 {
1289 if (!ge) {
1290 return "`builtin-unzoom`";
1291 }
1292 ZoomUnzoom();
1293 return (char *) 0;
1294 }
1295
1296 static char *
builtin_rotate_right(struct gp_event_t * ge)1297 builtin_rotate_right(struct gp_event_t *ge)
1298 {
1299 if (!ge)
1300 return "`scroll right in 2d, rotate right in 3d`; <Shift> faster";
1301 if (is_3d_plot)
1302 ChangeView(0, -1);
1303 else {
1304 int k = (modifier_mask & Mod_Shift) ? 3 : 1;
1305 while (k-- > 0)
1306 do_zoom_scroll_right();
1307 }
1308 return (char *) 0;
1309 }
1310
1311 static char *
builtin_rotate_left(struct gp_event_t * ge)1312 builtin_rotate_left(struct gp_event_t *ge)
1313 {
1314 if (!ge)
1315 return "`scroll left in 2d, rotate left in 3d`; <Shift> faster";
1316 if (is_3d_plot)
1317 ChangeView(0, 1);
1318 else {
1319 int k = (modifier_mask & Mod_Shift) ? 3 : 1;
1320 while (k-- > 0)
1321 do_zoom_scroll_left();
1322 }
1323 return (char *) 0;
1324 }
1325
1326 static char *
builtin_rotate_up(struct gp_event_t * ge)1327 builtin_rotate_up(struct gp_event_t *ge)
1328 {
1329 if (!ge)
1330 return "`scroll up in 2d, rotate up in 3d`; <Shift> faster";
1331 if (is_3d_plot)
1332 ChangeView(1, 0);
1333 else {
1334 int k = (modifier_mask & Mod_Shift) ? 3 : 1;
1335 while (k-- > 0)
1336 do_zoom_scroll_up();
1337 }
1338 return (char *) 0;
1339 }
1340
1341 static char *
builtin_rotate_down(struct gp_event_t * ge)1342 builtin_rotate_down(struct gp_event_t *ge)
1343 {
1344 if (!ge)
1345 return "`scroll down in 2d, rotate down in 3d`; <Shift> faster";
1346 if (is_3d_plot)
1347 ChangeView(-1, 0);
1348 else {
1349 int k = (modifier_mask & Mod_Shift) ? 3 : 1;
1350 while (k-- > 0)
1351 do_zoom_scroll_down();
1352 }
1353 return (char *) 0;
1354 }
1355
1356 static char *
builtin_azimuth_left(struct gp_event_t * ge)1357 builtin_azimuth_left(struct gp_event_t *ge)
1358 {
1359 if (!ge)
1360 return "`rotate azimuth left in 3d`; <ctrl> faster";
1361 if (is_3d_plot)
1362 ChangeAzimuth(-1);
1363 return (char *) 0;
1364 }
1365
1366 static char *
builtin_azimuth_right(struct gp_event_t * ge)1367 builtin_azimuth_right(struct gp_event_t *ge)
1368 {
1369 if (!ge)
1370 return "`rotate azimuth right in 3d`; <ctrl> faster";
1371 if (is_3d_plot)
1372 ChangeAzimuth(1);
1373 return (char *) 0;
1374 }
1375
1376 static char *
builtin_cancel_zoom(struct gp_event_t * ge)1377 builtin_cancel_zoom(struct gp_event_t *ge)
1378 {
1379 if (!ge) {
1380 return "`builtin-cancel-zoom` cancel zoom region";
1381 }
1382 if (!setting_zoom_region)
1383 return (char *) 0;
1384 if (term->set_cursor)
1385 term->set_cursor(0, 0, 0);
1386 setting_zoom_region = FALSE;
1387 if (display_ipc_commands()) {
1388 fprintf(stderr, "zooming cancelled.\n");
1389 }
1390 return (char *) 0;
1391 }
1392
1393 static void
event_keypress(struct gp_event_t * ge,TBOOLEAN current)1394 event_keypress(struct gp_event_t *ge, TBOOLEAN current)
1395 {
1396 int x, y;
1397 int c, par2;
1398 bind_t *ptr;
1399 bind_t keypress;
1400
1401 c = ge->par1;
1402 par2 = ge->par2;
1403 x = ge->mx;
1404 y = ge->my;
1405
1406 if (!bindings) {
1407 bind_install_default_bindings();
1408 }
1409
1410 if ((modifier_mask & Mod_Shift) && ((c & 0xff) == 0)) {
1411 c = toupper(c);
1412 }
1413
1414 bind_clear(&keypress);
1415 keypress.key = c;
1416 keypress.modifier = modifier_mask;
1417
1418 /*
1419 * On 'pause mouse keypress' in active window export current keypress
1420 * and mouse coords to user variables. A key with 'bind all' terminates
1421 * a pause even from non-active windows.
1422 * Ignore NULL keypress.
1423 *
1424 * If we are paused for a keystroke, this takes precendence over normal
1425 * key bindings. Otherwise, for example typing 'm' would turn off mousing,
1426 * which is a bad thing if you are in the middle of a mousing operation.
1427 */
1428
1429 if ((paused_for_mouse & PAUSE_KEYSTROKE) && (c > '\0') && current) {
1430 load_mouse_variables(x, y, FALSE, c);
1431 return;
1432 }
1433
1434 for (ptr = bindings; ptr; ptr = ptr->next) {
1435 if (bind_matches(&keypress, ptr)) {
1436 struct udvt_entry *keywin;
1437 if ((keywin = add_udv_by_name("MOUSE_KEY_WINDOW"))) {
1438 Ginteger(&keywin->udv_value, ge->winid);
1439 }
1440 /* Always honor keys set with "bind all" */
1441 if (ptr->allwindows && ptr->command) {
1442 if (current)
1443 load_mouse_variables(x, y, FALSE, c);
1444 else
1445 /* FIXME - Better to clear MOUSE_[XY] than to set it wrongly. */
1446 /* This may be worth a separate subroutine. */
1447 load_mouse_variables(0, 0, FALSE, c);
1448 do_string(ptr->command);
1449 /* Treat as a current event after we return to x11.trm */
1450 ge->type = GE_keypress;
1451 break;
1452 /* But otherwise ignore inactive windows */
1453 } else if (!current) {
1454 break;
1455 /* Let user defined bindings overwrite the builtin bindings */
1456 } else if ((par2 & 1) == 0 && ptr->command) {
1457 load_mouse_variables(x, y, FALSE, c);
1458 do_string(ptr->command);
1459 break;
1460 } else if (ptr->builtin) {
1461 load_mouse_variables(x, y, FALSE, c);
1462 ptr->builtin(ge);
1463 } else {
1464 fprintf(stderr, "%s:%d protocol error\n", __FILE__, __LINE__);
1465 }
1466 }
1467 }
1468
1469 }
1470
1471
1472 static void
ChangeView(int x,int z)1473 ChangeView(int x, int z)
1474 {
1475 if (modifier_mask & Mod_Shift) {
1476 x *= 10;
1477 z *= 10;
1478 }
1479
1480 if (x) {
1481 surface_rot_x += x;
1482 if (surface_rot_x < 0)
1483 surface_rot_x += 360;
1484 if (surface_rot_x > 360)
1485 surface_rot_x -= 360;
1486 }
1487 if (z) {
1488 surface_rot_z += z;
1489 if (surface_rot_z < 0)
1490 surface_rot_z += 360;
1491 if (surface_rot_z > 360)
1492 surface_rot_z -= 360;
1493 }
1494
1495 if (x || z) {
1496 fill_gpval_float("GPVAL_VIEW_ROT_X", surface_rot_x);
1497 fill_gpval_float("GPVAL_VIEW_ROT_Z", surface_rot_z);
1498 }
1499
1500 if (display_ipc_commands()) {
1501 fprintf(stderr, "changing view to %f, %f.\n", surface_rot_x, surface_rot_z);
1502 }
1503
1504 do_save_3dplot(first_3dplot, plot3d_num, 0 /* not quick */ );
1505
1506 if (ALMOST2D) {
1507 /* 2D plot, or suitably aligned 3D plot: update statusline */
1508 if (!term->put_tmptext)
1509 return;
1510 recalc_statusline();
1511 }
1512 }
1513
1514 static void
ChangeAzimuth(int x)1515 ChangeAzimuth(int x)
1516 {
1517 /* Can't use Mod_Shift because keyboards differ on the */
1518 /* shift status of the < and > keys. */
1519 if (modifier_mask & Mod_Ctrl)
1520 x *= 10;
1521
1522 if (x) {
1523 azimuth += x;
1524 if (azimuth < 0)
1525 azimuth += 360;
1526 if (azimuth > 360)
1527 azimuth -= 360;
1528
1529 fill_gpval_float("GPVAL_VIEW_AZIMUTH", azimuth);
1530 }
1531
1532 if (display_ipc_commands())
1533 fprintf(stderr, "changing azimuth to %f.\n", azimuth);
1534
1535 do_save_3dplot(first_3dplot, plot3d_num, 0 /* not quick */ );
1536 }
1537
1538
is_mouse_outside_plot(void)1539 int is_mouse_outside_plot(void)
1540 {
1541 // Here I look at both min/max each time because reversed ranges can make
1542 // min > max
1543 #define CHECK_AXIS_OUTSIDE(real, axis) \
1544 ( axis_array[axis].min < VERYLARGE && \
1545 axis_array[axis].max > -VERYLARGE && \
1546 ( (real < AXIS_DE_LOG_VALUE(axis, axis_array[axis].min) && \
1547 real < AXIS_DE_LOG_VALUE(axis, axis_array[axis].max)) || \
1548 (real > AXIS_DE_LOG_VALUE(axis, axis_array[axis].min) && \
1549 real > AXIS_DE_LOG_VALUE(axis, axis_array[axis].max))))
1550
1551 return
1552 CHECK_AXIS_OUTSIDE(real_x, FIRST_X_AXIS) ||
1553 CHECK_AXIS_OUTSIDE(real_y, FIRST_Y_AXIS) ||
1554 CHECK_AXIS_OUTSIDE(real_x2, SECOND_X_AXIS) ||
1555 CHECK_AXIS_OUTSIDE(real_y2, SECOND_Y_AXIS);
1556
1557 #undef CHECK_AXIS_OUTSIDE
1558 }
1559
1560 /* Return a new upper or lower axis limit that is a linear
1561 * combination of the current limits.
1562 */
1563 static double
rescale(int AXIS,double w1,double w2)1564 rescale(int AXIS, double w1, double w2)
1565 {
1566 double newlimit;
1567 struct axis *axis = &axis_array[AXIS];
1568 double axmin = axis->min;
1569 double axmax = axis->max;
1570
1571 if (nonlinear(axis)) {
1572 axmin = eval_link_function(axis->linked_to_primary, axmin);
1573 axmax = eval_link_function(axis->linked_to_primary, axmax);
1574 }
1575
1576 newlimit = w1*axmin + w2*axmax;
1577
1578 if (nonlinear(axis))
1579 newlimit = eval_link_function(axis->linked_to_primary->linked_to_secondary, newlimit);
1580 else
1581 newlimit = AXIS_DE_LOG_VALUE(AXIS,newlimit);
1582
1583 return newlimit;
1584 }
1585
1586 /* Rescale axes and do zoom. */
1587 static void
zoom_rescale_xyx2y2(double a0,double a1,double a2,double a3,double a4,double a5,double a6,double a7,double a8,double a9,double a10,double a11,double a12,double a13,double a14,double a15,char msg[])1588 zoom_rescale_xyx2y2(double a0,double a1,double a2,double a3,double a4,double a5,double a6,
1589 double a7,double a8,double a9,double a10,double a11,double a12,double a13,double a14,double a15,
1590 char msg[])
1591 {
1592 double xmin = rescale(FIRST_X_AXIS, a0, a1);
1593 double ymin = rescale(FIRST_Y_AXIS, a2, a3);
1594 double x2min = rescale(SECOND_X_AXIS, a4, a5);
1595 double y2min = rescale(SECOND_Y_AXIS, a6, a7);
1596
1597 double xmax = rescale(FIRST_X_AXIS, a8, a9);
1598 double ymax = rescale(FIRST_Y_AXIS, a10, a11);
1599 double x2max = rescale(SECOND_X_AXIS, a12, a13);
1600 double y2max = rescale(SECOND_Y_AXIS, a14, a15);
1601 do_zoom(xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max);
1602
1603 if (msg[0] && display_ipc_commands()) {
1604 fputs(msg, stderr); fputs("\n", stderr);
1605 }
1606 }
1607
1608
1609 /* Scroll left. */
1610 static void
do_zoom_scroll_left()1611 do_zoom_scroll_left()
1612 {
1613 zoom_rescale_xyx2y2(1.1, -0.1,
1614 1, 0,
1615 1.1, -0.1,
1616 1, 0,
1617 0.1, 0.9,
1618 0, 1,
1619 0.1, 0.9,
1620 0, 1,
1621 "scroll left.\n");
1622 }
1623
1624 /* Scroll right. */
1625 static void
do_zoom_scroll_right()1626 do_zoom_scroll_right()
1627 {
1628 zoom_rescale_xyx2y2(0.9, 0.1,
1629 1, 0,
1630 0.9, 0.1,
1631 1, 0,
1632 -0.1, 1.1,
1633 0, 1,
1634 -0.1, 1.1,
1635 0, 1,
1636 "scroll right");
1637 }
1638
1639 /* Scroll up. */
1640 static void
do_zoom_scroll_up()1641 do_zoom_scroll_up()
1642 {
1643 zoom_rescale_xyx2y2(1, 0,
1644 0.9, 0.1,
1645 1, 0,
1646 0.9, 0.1,
1647 0, 1,
1648 -0.1, 1.1,
1649 0, 1,
1650 -0.1, 1.1,
1651 "scroll up");
1652 }
1653
1654 /* Scroll down. */
1655 static void
do_zoom_scroll_down()1656 do_zoom_scroll_down()
1657 {
1658 zoom_rescale_xyx2y2(1, 0,
1659 1.1, -0.1,
1660 1, 0,
1661 1.1, -0.1,
1662 0, 1,
1663 0.1, 0.9,
1664 0, 1,
1665 0.1, 0.9,
1666 "scroll down");
1667 }
1668
1669
1670 /* Return new lower and upper axis limits from expanding current limits
1671 * relative to current mouse position.
1672 */
1673 static void
rescale_around_mouse(double * newmin,double * newmax,int AXIS,double mouse_pos,double scale)1674 rescale_around_mouse(double *newmin, double *newmax, int AXIS, double mouse_pos, double scale)
1675 {
1676 struct axis *axis = &axis_array[AXIS];
1677 struct axis *primary = axis->linked_to_primary;
1678 double axmin = axis->min;
1679 double axmax = axis->max;
1680
1681 if (nonlinear(axis)) {
1682 axmin = eval_link_function(primary, axmin);
1683 axmax = eval_link_function(primary, axmax);
1684 mouse_pos = eval_link_function(primary, mouse_pos);
1685 } else {
1686 mouse_pos = AXIS_LOG_VALUE(AXIS, mouse_pos);
1687 }
1688
1689 *newmin = mouse_pos + (axmin - mouse_pos) * scale;
1690 *newmax = mouse_pos + (axmax - mouse_pos) * scale;
1691
1692 if (nonlinear(axis)) {
1693 *newmin = eval_link_function(primary->linked_to_secondary, *newmin);
1694 *newmax = eval_link_function(primary->linked_to_secondary, *newmax);
1695 } else {
1696 *newmin = AXIS_DE_LOG_VALUE(AXIS,*newmin);
1697 *newmax = AXIS_DE_LOG_VALUE(AXIS,*newmax);
1698 }
1699 }
1700
1701
1702 /* Zoom in/out within x-axis. */
1703 static void
zoom_in_X(int zoom_key)1704 zoom_in_X(int zoom_key)
1705 {
1706 // I don't check for "outside" here. will do that later
1707 if (is_mouse_outside_plot()) {
1708 /* zoom in (X axis only) */
1709 double w1 = (zoom_key=='+') ? 23./25. : 23./21.;
1710 double w2 = (zoom_key=='+') ? 2./25. : -2./21.;
1711 zoom_rescale_xyx2y2(w1,w2, 1,0, w1,w2, 1,0, w2,w1, 0,1, w2,w1, 0,1,
1712 (zoom_key=='+' ? "zoom in X" : "zoom out X"));
1713 } else {
1714 double xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max;
1715 double scale = (zoom_key=='+') ? 0.75 : 1.25;
1716 rescale_around_mouse(&xmin, &xmax, FIRST_X_AXIS, real_x, scale);
1717 rescale_around_mouse(&x2min, &x2max, SECOND_X_AXIS, real_x2, scale);
1718
1719 ymin = rescale(FIRST_Y_AXIS, 1,0);
1720 y2min = rescale(SECOND_Y_AXIS, 1,0);
1721 ymax = rescale(FIRST_Y_AXIS, 0,1);
1722 y2max = rescale(SECOND_Y_AXIS, 0,1);
1723 do_zoom(xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max);
1724 }
1725 }
1726
1727 static void
do_zoom_in_X()1728 do_zoom_in_X()
1729 {
1730 zoom_in_X('+');
1731 }
1732
1733 static void
do_zoom_out_X()1734 do_zoom_out_X()
1735 {
1736 zoom_in_X('-');
1737 }
1738
1739
1740 /* Zoom around mouse cursor unless the cursor is outside the graph boundary,
1741 when it scales around the graph center.
1742 Syntax: zoom_key == '+' ... zoom in, zoom_key == '-' ... zoom out
1743 */
1744 static void
zoom_around_mouse(int zoom_key)1745 zoom_around_mouse(int zoom_key)
1746 {
1747 double xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max;
1748 if (is_mouse_outside_plot()) {
1749 /* zoom in (factor of approximately 2^(.25), so four steps gives 2x larger) */
1750 double w1 = (zoom_key=='+') ? 23./25. : 23./21.;
1751 double w2 = (zoom_key=='+') ? 2./25. : -2./21.;
1752 xmin = rescale(FIRST_X_AXIS, w1, w2);
1753 ymin = rescale(FIRST_Y_AXIS, w1, w2);
1754 x2min = rescale(SECOND_X_AXIS, w1, w2);
1755 y2min = rescale(SECOND_Y_AXIS, w1, w2);
1756
1757 xmax = rescale(FIRST_X_AXIS, w2, w1);
1758 ymax = rescale(FIRST_Y_AXIS, w2, w1);
1759 x2max = rescale(SECOND_X_AXIS, w2, w1);
1760 y2max = rescale(SECOND_Y_AXIS, w2, w1);
1761 } else {
1762 int zsign = (zoom_key=='+') ? -1 : 1;
1763 double xscale = pow(1.25, zsign * mouse_setting.xmzoom_factor);
1764 double yscale = pow(1.25, zsign * mouse_setting.ymzoom_factor);
1765 /* {x,y}zoom_factor = 0: not zoom, = 1: 0.8/1.25 zoom */
1766 rescale_around_mouse(&xmin, &xmax, FIRST_X_AXIS, real_x, xscale);
1767 rescale_around_mouse(&ymin, &ymax, FIRST_Y_AXIS, real_y, yscale);
1768 rescale_around_mouse(&x2min, &x2max, SECOND_X_AXIS, real_x2, xscale);
1769 rescale_around_mouse(&y2min, &y2max, SECOND_Y_AXIS, real_y2, yscale);
1770 }
1771 do_zoom(xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max);
1772 if (display_ipc_commands())
1773 fprintf(stderr, "zoom %s.\n", (zoom_key=='+' ? "in" : "out"));
1774 }
1775
1776 static void
do_zoom_in_around_mouse()1777 do_zoom_in_around_mouse()
1778 {
1779 zoom_around_mouse('+');
1780 }
1781
1782 static void
do_zoom_out_around_mouse()1783 do_zoom_out_around_mouse()
1784 {
1785 zoom_around_mouse('-');
1786 }
1787
1788 static char *
builtin_zoom_in_around_mouse(struct gp_event_t * ge)1789 builtin_zoom_in_around_mouse(struct gp_event_t *ge)
1790 {
1791 if (!ge)
1792 return "`builtin-zoom-in` zoom in";
1793 do_zoom_in_around_mouse();
1794 return (char *) 0;
1795 }
1796
1797 static char *
builtin_zoom_out_around_mouse(struct gp_event_t * ge)1798 builtin_zoom_out_around_mouse(struct gp_event_t *ge)
1799 {
1800 if (!ge)
1801 return "`builtin-zoom-out` zoom out";
1802 do_zoom_out_around_mouse();
1803 return (char *) 0;
1804 }
1805
1806
1807 #if (0) /* Not currently used */
1808 static char *
builtin_zoom_scroll_left(struct gp_event_t * ge)1809 builtin_zoom_scroll_left(struct gp_event_t *ge)
1810 {
1811 if (!ge)
1812 return "`builtin-zoom-scroll-left` scroll left";
1813 do_zoom_scroll_left();
1814 return (char *) 0;
1815 }
1816
1817 static char *
builtin_zoom_scroll_right(struct gp_event_t * ge)1818 builtin_zoom_scroll_right(struct gp_event_t *ge)
1819 {
1820 if (!ge)
1821 return "`builtin-zoom-scroll-right` scroll right";
1822 do_zoom_scroll_right();
1823 return (char *) 0;
1824 }
1825
1826 static char *
builtin_zoom_scroll_up(struct gp_event_t * ge)1827 builtin_zoom_scroll_up(struct gp_event_t *ge)
1828 {
1829 if (!ge)
1830 return "`builtin-zoom-scroll-up` scroll up";
1831 do_zoom_scroll_up();
1832 return (char *) 0;
1833 }
1834
1835 static char *
builtin_zoom_scroll_down(struct gp_event_t * ge)1836 builtin_zoom_scroll_down(struct gp_event_t *ge)
1837 {
1838 if (!ge)
1839 return "`builtin-zoom-scroll-down` scroll down";
1840 do_zoom_scroll_down();
1841 return (char *) 0;
1842 }
1843
1844 static char *
builtin_zoom_in_X(struct gp_event_t * ge)1845 builtin_zoom_in_X(struct gp_event_t *ge)
1846 {
1847 if (!ge)
1848 return "`builtin-zoom-in-X` zoom in X axis";
1849 do_zoom_in_X();
1850 return (char *) 0;
1851 }
1852
1853 static char *
builtin_zoom_out_X(struct gp_event_t * ge)1854 builtin_zoom_out_X(struct gp_event_t *ge)
1855 {
1856 if (!ge)
1857 return "`builtin-zoom-out-X` zoom out X axis";
1858 do_zoom_out_X();
1859 return (char *) 0;
1860 }
1861 #endif /* Not currently used */
1862
1863 static void
event_buttonpress(struct gp_event_t * ge)1864 event_buttonpress(struct gp_event_t *ge)
1865 {
1866 int b;
1867
1868 motion = 0;
1869
1870 b = ge->par1;
1871 mouse_x = ge->mx;
1872 mouse_y = ge->my;
1873
1874 button |= (1 << b);
1875
1876 FPRINTF((stderr, "(event_buttonpress) mouse_x = %d\tmouse_y = %d\n", mouse_x, mouse_y));
1877
1878 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
1879
1880
1881 if ((b == 4 || b == 6) && /* 4 - wheel up, 6 - wheel left */
1882 (!replot_disabled || (E_REFRESH_NOT_OK != refresh_ok)) /* Use refresh if available */
1883 && !(paused_for_mouse & PAUSE_BUTTON3)) {
1884
1885 /* Ctrl+Shift+wheel up or Squeeze (not implemented) */
1886 if ((modifier_mask & Mod_Ctrl) && (modifier_mask & Mod_Shift))
1887 do_zoom_in_X();
1888
1889 /* Ctrl+wheel up or Ctrl+stroke */
1890 else if ((modifier_mask & Mod_Ctrl))
1891 do_zoom_in_around_mouse();
1892
1893 /* Horizontal stroke (button 6) or Shift+wheel up */
1894 else if (b == 6 || (modifier_mask & Mod_Shift))
1895 do_zoom_scroll_left();
1896
1897 /* Wheel up (no modifier keys) */
1898 else
1899 do_zoom_scroll_up();
1900
1901 } else if (((b == 5) || (b == 7)) && /* 5 - wheel down, 7 - wheel right */
1902 (!replot_disabled || (E_REFRESH_NOT_OK != refresh_ok)) /* Use refresh if available */
1903 && !(paused_for_mouse & PAUSE_BUTTON3)) {
1904
1905 /* Ctrl+Shift+wheel down or Unsqueeze (not implemented) */
1906 if ((modifier_mask & Mod_Ctrl) && (modifier_mask & Mod_Shift))
1907 do_zoom_out_X();
1908
1909 /* Ctrl+wheel down or Ctrl+stroke */
1910 else if ((modifier_mask & Mod_Ctrl))
1911 do_zoom_out_around_mouse();
1912
1913 /* Horizontal stroke (button 7) or Shift+wheel down */
1914 else if (b == 7 || (modifier_mask & Mod_Shift))
1915 do_zoom_scroll_right();
1916
1917 /* Wheel down (no modifier keys) */
1918 else
1919 do_zoom_scroll_down();
1920
1921 } else if (ALMOST2D) {
1922 if (!setting_zoom_region) {
1923 if (1 == b) {
1924 /* "pause button1" or "pause any" takes precedence over key bindings */
1925 if (paused_for_mouse & PAUSE_BUTTON1) {
1926 load_mouse_variables(mouse_x, mouse_y, TRUE, b);
1927 trap_release = TRUE; /* Don't trigger on release also */
1928 return;
1929 }
1930 } else if (2 == b) {
1931 /* not bound in 2d graphs */
1932 } else if (3 == b &&
1933 (!replot_disabled || (E_REFRESH_NOT_OK != refresh_ok)) /* Use refresh if available */
1934 && !(paused_for_mouse & PAUSE_BUTTON3)) {
1935 /* start zoom; but ignore it when
1936 * - replot is disabled, e.g. with inline data, or
1937 * - during 'pause mouse'
1938 * allow zooming during 'pause mouse key' */
1939 setting_zoom_x = mouse_x;
1940 setting_zoom_y = mouse_y;
1941 setting_zoom_region = TRUE;
1942 if (term->set_cursor) {
1943 int mv_mouse_x, mv_mouse_y;
1944 if (mouse_setting.annotate_zoom_box && term->put_tmptext) {
1945 double real_x, real_y, real_x2, real_y2;
1946 char s[64];
1947 /* tell driver annotations */
1948 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
1949 sprintf(s, zoombox_format(), real_x, real_y);
1950 term->put_tmptext(1, s);
1951 term->put_tmptext(2, s);
1952 }
1953 /* displace mouse in order not to start with an empty zoom box */
1954 mv_mouse_x = term->xmax / 20;
1955 mv_mouse_y = (term->xmax == term->ymax) ? mv_mouse_x : (int) ((mv_mouse_x * (double) term->ymax) / term->xmax);
1956 mv_mouse_x += mouse_x;
1957 mv_mouse_y += mouse_y;
1958
1959 /* change cursor type */
1960 term->set_cursor(3, 0, 0);
1961
1962 /* warp pointer */
1963 if (mouse_setting.warp_pointer)
1964 term->set_cursor(-2, mv_mouse_x, mv_mouse_y);
1965
1966 /* turn on the zoom box */
1967 term->set_cursor(-1, setting_zoom_x, setting_zoom_y);
1968 }
1969 if (display_ipc_commands()) {
1970 fprintf(stderr, "starting zoom region.\n");
1971 }
1972 }
1973 } else {
1974
1975 /* complete zoom (any button
1976 * finishes zooming.) */
1977
1978 /* the following variables are used to check,
1979 * if the box is big enough to be considered
1980 * as zoom box. */
1981 int dist_x = setting_zoom_x - mouse_x;
1982 int dist_y = setting_zoom_y - mouse_y;
1983 int dist = sqrt((double)(dist_x * dist_x + dist_y * dist_y));
1984
1985 if (1 == b || 2 == b) {
1986 /* zoom region is finished by the `wrong' button.
1987 * `trap' the next button-release event so that
1988 * it won't trigger the actions which are bound
1989 * to these events.
1990 */
1991 trap_release = TRUE;
1992 }
1993
1994 if (term->set_cursor) {
1995 term->set_cursor(0, 0, 0);
1996 if (mouse_setting.annotate_zoom_box && term->put_tmptext) {
1997 term->put_tmptext(1, "");
1998 term->put_tmptext(2, "");
1999 }
2000 }
2001
2002 if (dist > 10 /* more ore less arbitrary */ ) {
2003
2004 double xmin, ymin, x2min, y2min;
2005 double xmax, ymax, x2max, y2max;
2006
2007 MousePosToGraphPosReal(setting_zoom_x, setting_zoom_y, &xmin, &ymin, &x2min, &y2min);
2008 xmax = real_x;
2009 x2max = real_x2;
2010 ymax = real_y;
2011 y2max = real_y2;
2012 /* keep the axes (no)reversed as they are now */
2013 #define rev(a1,a2,A) if (sgn(a2-a1) != sgn(axis_array[A].max-axis_array[A].min)) \
2014 { double tmp = a1; a1 = a2; a2 = tmp; }
2015 rev(xmin, xmax, FIRST_X_AXIS);
2016 rev(ymin, ymax, FIRST_Y_AXIS);
2017 rev(x2min, x2max, SECOND_X_AXIS);
2018 rev(y2min, y2max, SECOND_Y_AXIS);
2019 #undef rev
2020 do_zoom(xmin, ymin, x2min, y2min, xmax, ymax, x2max, y2max);
2021 if (display_ipc_commands()) {
2022 fprintf(stderr, "zoom region finished.\n");
2023 }
2024 } else {
2025 /* silently ignore a tiny zoom box. This might
2026 * happen, if the user starts and finishes the
2027 * zoom box at the same position. */
2028 }
2029 setting_zoom_region = FALSE;
2030 }
2031 } else {
2032 if (term->set_cursor) {
2033 if (button & (1 << 1) || button & (1 << 3))
2034 term->set_cursor(1, 0, 0);
2035 else if (button & (1 << 2))
2036 term->set_cursor(2, 0, 0);
2037 }
2038 }
2039 start_x = mouse_x;
2040 start_y = mouse_y;
2041 zero_rot_z = surface_rot_z + 360.0 * mouse_x / term->xmax;
2042 /* zero_rot_x = surface_rot_x - 180.0 * mouse_y / term->ymax; */
2043 zero_rot_x = surface_rot_x - 360.0 * mouse_y / term->ymax;
2044 }
2045
2046
2047 static void
event_buttonrelease(struct gp_event_t * ge)2048 event_buttonrelease(struct gp_event_t *ge)
2049 {
2050 int b, doubleclick;
2051
2052 b = ge->par1;
2053 mouse_x = ge->mx;
2054 mouse_y = ge->my;
2055 doubleclick = ge->par2;
2056
2057 button &= ~(1 << b); /* remove button */
2058
2059 if (setting_zoom_region) {
2060 return;
2061 }
2062 if (TRUE == trap_release) {
2063 trap_release = FALSE;
2064 return;
2065 }
2066
2067 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
2068
2069 FPRINTF((stderr, "MOUSE.C: doublclick=%i, set=%i, motion=%i, ALMOST2D=%i\n", (int) doubleclick, (int) mouse_setting.doubleclick,
2070 (int) motion, (int) ALMOST2D));
2071
2072 if (ALMOST2D) {
2073 char s0[256];
2074 if (b == 1 && term->set_clipboard && ((doubleclick <= mouse_setting.doubleclick)
2075 || !mouse_setting.doubleclick)) {
2076
2077 /* put coordinates to clipboard. For 3d plots this takes
2078 * only place, if the user didn't drag (rotate) the plot */
2079
2080 if (!is_3d_plot || !motion) {
2081 GetAnnotateString(s0, real_x, real_y, mouse_mode, mouse_alt_string);
2082 term->set_clipboard(s0);
2083 if (display_ipc_commands()) {
2084 fprintf(stderr, "put `%s' to clipboard.\n", s0);
2085 }
2086 }
2087 }
2088 if (b == 2) {
2089
2090 /* draw temporary annotation or label. For 3d plots this is
2091 * only done if the user didn't drag (scale) the plot */
2092
2093 if (!is_3d_plot || !motion) {
2094
2095 GetAnnotateString(s0, real_x, real_y, mouse_mode, mouse_alt_string);
2096 if (mouse_setting.label) {
2097 if (modifier_mask & Mod_Ctrl) {
2098 remove_label(mouse_x, mouse_y);
2099 } else {
2100 put_label(s0, real_x, real_y);
2101 }
2102 } else {
2103 int dx, dy;
2104 int x = mouse_x;
2105 int y = mouse_y;
2106 dx = term->h_tic;
2107 dy = term->v_tic;
2108 (term->linewidth) (border_lp.l_width);
2109 (term->linetype) (border_lp.l_type);
2110 (term->move) (x - dx, y);
2111 (term->vector) (x + dx, y);
2112 (term->move) (x, y - dy);
2113 (term->vector) (x, y + dy);
2114 (term->justify_text) (LEFT);
2115 (term->put_text) (x + dx / 2, y + dy / 2 + term->v_char / 3, s0);
2116 (term->text) ();
2117 }
2118 }
2119 }
2120 }
2121 if (is_3d_plot && (b == 1 || b == 2 || b == 3)) {
2122 if (!!(modifier_mask & Mod_Ctrl) && !needreplot) {
2123 /* redraw the 3d plot if its last redraw was 'quick'
2124 * (only axes) because modifier key was pressed */
2125 do_save_3dplot(first_3dplot, plot3d_num, 0);
2126 }
2127 if (term->set_cursor)
2128 term->set_cursor((button & (1 << 1)) ? 1 : (button & (1 << 2)) ? 2 : 0,
2129 0, 0);
2130 }
2131
2132 /* Export current mouse coords to user-accessible variables also */
2133 load_mouse_variables(mouse_x, mouse_y, TRUE, b);
2134 UpdateStatusline();
2135
2136 /* In 2D mouse button 1 is available for "bind" commands */
2137 if (!is_3d_plot && (b == 1)) {
2138 int save = ge->par1;
2139 ge->par1 = GP_Button1;
2140 ge->par2 = 0;
2141 event_keypress(ge, TRUE);
2142 ge->par1 = save; /* needed for "pause mouse" */
2143 }
2144 }
2145
2146
2147 static void
event_motion(struct gp_event_t * ge)2148 event_motion(struct gp_event_t *ge)
2149 {
2150 motion = 1;
2151
2152 mouse_x = ge->mx;
2153 mouse_y = ge->my;
2154
2155 if (is_3d_plot
2156 && (splot_map == FALSE) /* Rotate the surface if it is 3D graph but not "set view map". */
2157 ) {
2158
2159 TBOOLEAN redraw = FALSE;
2160
2161 if (button & (1 << 1)) {
2162 /* dragging with button 1 -> rotate */
2163 /*surface_rot_x = floor(0.5 + zero_rot_x + 180.0 * mouse_y / term->ymax);*/
2164 surface_rot_x = floor(0.5 + fmod(zero_rot_x + 360.0 * mouse_y / term->ymax, 360));
2165 if (surface_rot_x < 0)
2166 surface_rot_x += 360;
2167 if (surface_rot_x > 360)
2168 surface_rot_x -= 360;
2169 surface_rot_z = floor(0.5 + fmod(zero_rot_z - 360.0 * mouse_x / term->xmax, 360));
2170 if (surface_rot_z < 0)
2171 surface_rot_z += 360;
2172 redraw = TRUE;
2173 } else if (button & (1 << 2)) {
2174 /* dragging with button 2 -> scale or changing ticslevel.
2175 * we compare the movement in x and y direction, and
2176 * change either scale or zscale */
2177 double relx, rely;
2178 relx = (double)abs(mouse_x - start_x) / (double)term->h_tic;
2179 rely = (double)abs(mouse_y - start_y) / (double)term->v_tic;
2180
2181 if (modifier_mask & Mod_Shift) {
2182 xyplane.z += (1 + fabs(xyplane.z))
2183 * (mouse_y - start_y) * 2.0 / term->ymax;
2184 } else {
2185
2186 if (relx > rely) {
2187 surface_lscale += (mouse_x - start_x) * 2.0 / term->xmax;
2188 surface_scale = exp(surface_lscale);
2189 if (surface_scale < 0)
2190 surface_scale = 0;
2191 } else {
2192 if (disable_mouse_z && (mouse_y-start_y > 0))
2193 ;
2194 else {
2195 surface_zscale += (mouse_y - start_y) * 2.0 / term->ymax;
2196 disable_mouse_z = FALSE;
2197 }
2198 if (surface_zscale < 0)
2199 surface_zscale = 0;
2200 }
2201 }
2202 /* reset the start values */
2203 start_x = mouse_x;
2204 start_y = mouse_y;
2205 redraw = TRUE;
2206 } else if (button & (1 << 3)) {
2207 /* dragging with button 3 -> change azimuth */
2208 azimuth += (mouse_x - start_x) * 90.0 / term->xmax;
2209 start_x = mouse_x;
2210 redraw = TRUE;
2211 }
2212
2213 if (!ALMOST2D) {
2214 turn_ruler_off();
2215 }
2216
2217 if (redraw) {
2218 if (allowmotion) {
2219 /* is processing of motions allowed right now?
2220 * then replot while
2221 * disabling further replots until it completes */
2222 allowmotion = FALSE;
2223 do_save_3dplot(first_3dplot, plot3d_num, !!(modifier_mask & Mod_Ctrl));
2224 fill_gpval_float("GPVAL_VIEW_ROT_X", surface_rot_x);
2225 fill_gpval_float("GPVAL_VIEW_ROT_Z", surface_rot_z);
2226 fill_gpval_float("GPVAL_VIEW_SCALE", surface_scale);
2227 fill_gpval_float("GPVAL_VIEW_ZSCALE", surface_zscale);
2228 fill_gpval_float("GPVAL_VIEW_AZIMUTH", azimuth);
2229 } else {
2230 /* postpone the replotting */
2231 needreplot = TRUE;
2232 }
2233 }
2234 } /* if (3D plot) */
2235
2236
2237 if (ALMOST2D) {
2238 /* 2D plot, or suitably aligned 3D plot: update
2239 * statusline and possibly the zoombox annotation */
2240 if (!term->put_tmptext)
2241 return;
2242 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
2243 UpdateStatusline();
2244
2245 if (setting_zoom_region && mouse_setting.annotate_zoom_box) {
2246 double real_x, real_y, real_x2, real_y2;
2247 char s[64];
2248 MousePosToGraphPosReal(mouse_x, mouse_y, &real_x, &real_y, &real_x2, &real_y2);
2249 sprintf(s, zoombox_format(), real_x, real_y);
2250 term->put_tmptext(2, s);
2251 }
2252 }
2253 }
2254
2255
2256 static void
event_modifier(struct gp_event_t * ge)2257 event_modifier(struct gp_event_t *ge)
2258 {
2259 modifier_mask = ge->par1;
2260
2261 if (modifier_mask == 0 && is_3d_plot && (button & ((1 << 1) | (1 << 2))) && !needreplot) {
2262 /* redraw the 3d plot if modifier key released */
2263 do_save_3dplot(first_3dplot, plot3d_num, 0);
2264 }
2265 }
2266
2267
2268 void
event_plotdone()2269 event_plotdone()
2270 {
2271 if (needreplot) {
2272 needreplot = FALSE;
2273 do_save_3dplot(first_3dplot, plot3d_num, !!(modifier_mask & Mod_Ctrl));
2274 } else {
2275 allowmotion = TRUE;
2276 }
2277 }
2278
2279
2280 void
event_reset(struct gp_event_t * ge)2281 event_reset(struct gp_event_t *ge)
2282 {
2283 modifier_mask = 0;
2284 button = 0;
2285 builtin_cancel_zoom(ge);
2286 if (term && term_initialised && term->set_cursor) {
2287 term->set_cursor(0, 0, 0);
2288 if (mouse_setting.annotate_zoom_box && term->put_tmptext) {
2289 term->put_tmptext(1, "");
2290 term->put_tmptext(2, "");
2291 }
2292 }
2293
2294 /* This hack is necessary on some systems in order to prevent one */
2295 /* character of input from being swallowed when the plot window is */
2296 /* closed. But which systems, exactly, and in what circumstances? */
2297 if (paused_for_mouse || !interactive) {
2298 if (term && (!strncmp("x11",term->name,3)
2299 || !strncmp("wxt",term->name,3)
2300 || !strncmp("qt",term->name,2)))
2301 ungetc('\n',stdin);
2302 }
2303
2304 if (paused_for_mouse) {
2305 paused_for_mouse = 0;
2306 #ifdef WIN32
2307 /* close pause message box */
2308 kill_pending_Pause_dialog();
2309 #endif
2310 }
2311
2312 /* Dummy up a keystroke event so that we can conveniently check for a */
2313 /* binding to "Close". We only get these for the current window. */
2314 if (ge != (void *)1) {
2315 ge->par1 = GP_Cancel; /* Dummy keystroke */
2316 ge->par2 = 0; /* Not used; could pass window id here? */
2317 event_keypress(ge, TRUE);
2318 }
2319 }
2320
2321
2322 void
do_event(struct gp_event_t * ge)2323 do_event(struct gp_event_t *ge)
2324 {
2325 if (!term)
2326 return;
2327
2328 /* disable `replot` when some data were sent through stdin */
2329 replot_disabled = plotted_data_from_stdin;
2330
2331 if (ge->type) {
2332 FPRINTF((stderr, "(do_event) type = %d\n", ge->type));
2333 FPRINTF((stderr, " mx, my = %d, %d\n", ge->mx, ge->my));
2334 FPRINTF((stderr, " par1, par2 = %d, %d\n", ge->par1, ge->par2));
2335 }
2336
2337 switch (ge->type) {
2338 case GE_plotdone:
2339 event_plotdone();
2340 if (ge->winid) {
2341 current_x11_windowid = ge->winid;
2342 update_gpval_variables(6); /* fill GPVAL_TERM_WINDOWID */
2343 }
2344 break;
2345 case GE_keypress:
2346 event_keypress(ge, TRUE);
2347 break;
2348 case GE_keypress_old:
2349 event_keypress(ge, FALSE);
2350 break;
2351 case GE_modifier:
2352 event_modifier(ge);
2353 break;
2354 case GE_motion:
2355 if (!mouse_setting.on)
2356 break;
2357 event_motion(ge);
2358 break;
2359 case GE_buttonpress:
2360 if (!mouse_setting.on)
2361 break;
2362 event_buttonpress(ge);
2363 break;
2364 case GE_buttonrelease:
2365 if (!mouse_setting.on)
2366 break;
2367 event_buttonrelease(ge);
2368 break;
2369 case GE_replot:
2370 /* auto-generated replot (e.g. from replot-on-resize) */
2371 /* FIXME: more terminals should use this! */
2372 if (replot_line == NULL || replot_line[0] == '\0')
2373 break;
2374 if (!strncmp(replot_line,"test",4))
2375 break;
2376 if (multiplot)
2377 break;
2378 do_string_replot("");
2379 break;
2380 case GE_reset:
2381 event_reset(ge);
2382 break;
2383 case GE_fontprops:
2384 #ifdef X11
2385 /* EAM FIXME: Despite the name, only X11 uses this to pass font info. */
2386 /* Everyone else passes just the plot height and width. */
2387 if (!strcmp(term->name,"x11")) {
2388 /* These are declared in ../term/x11.trm */
2389 extern int X11_hchar_saved, X11_vchar_saved;
2390 extern double X11_ymax_saved;
2391
2392 /* Cached sizing values for the x11 terminal. Each time an X11 window is
2393 resized, these are updated with the new sizes. When a replot happens some
2394 time later, these saved values are used. The normal mechanism for doing this
2395 is sending a QG from inboard to outboard driver, then the outboard driver
2396 responds with the sizing info in a GE_fontprops event. The problem is that
2397 other than during plot initialization the communication is asynchronous.
2398 */
2399 X11_hchar_saved = ge->par1;
2400 X11_vchar_saved = ge->par2;
2401 X11_ymax_saved = (double)term->xmax * (double)ge->my / fabs((double)ge->mx);
2402
2403 /* If mx < 0, we simply save the values for future use, and move on */
2404 if (ge->mx < 0) {
2405 break;
2406 } else {
2407 /* Otherwise we apply the changes right now */
2408 term->h_char = X11_hchar_saved;
2409 term->v_char = X11_vchar_saved;
2410 /* factor of 2.5 must match the use in x11.trm */
2411 term->h_tic = term->v_tic = X11_vchar_saved / 2.5;
2412 term->ymax = X11_ymax_saved;
2413 }
2414 } else
2415 /* Fall through to cover non-x11 case */
2416 #endif
2417 /* Other terminals update aspect ratio based on current window size */
2418 term->v_tic = term->h_tic * (double)ge->mx / (double)ge->my;
2419
2420 FPRINTF((stderr, "mouse do_event: window size %d X %d, font hchar %d vchar %d\n",
2421 ge->mx, ge->my, ge->par1,ge->par2));
2422 break;
2423 case GE_buttonpress_old:
2424 case GE_buttonrelease_old:
2425 /* ignore */
2426 break;
2427 case GE_raise:
2428 /* FIXME: No generic routine implemented! */
2429 /* Individual terminal types must handle it themselves if they care */
2430 break;
2431 default:
2432 fprintf(stderr, "%s:%d unrecognized event type %d\n", __FILE__, __LINE__, ge->type);
2433 break;
2434 }
2435
2436 replot_disabled = FALSE; /* enable replot again */
2437 }
2438
2439 static void
do_save_3dplot(struct surface_points * plots,int pcount,int quick)2440 do_save_3dplot(struct surface_points *plots, int pcount, int quick)
2441 {
2442 #if (0)
2443 #define M_TEST_AXIS(A) \
2444 (A.log && ((!(A.set_autoscale & AUTOSCALE_MIN) && A.set_min <= 0) || \
2445 (!(A.set_autoscale & AUTOSCALE_MAX) && A.set_max <= 0)))
2446 #endif
2447
2448 if (!plots || (E_REFRESH_NOT_OK == refresh_ok)) {
2449 /* !plots might happen after the `reset' command for example
2450 * (reported by Franz Bakan).
2451 * !refresh_ok can happen for example if log scaling is reset (EAM).
2452 * replotrequest() should set up everything again in either case.
2453 */
2454 replotrequest();
2455 } else {
2456 #if (0) /* Dead code. This error is now trapped elsewhere */
2457 if (M_TEST_AXIS(X_AXIS) || M_TEST_AXIS(Y_AXIS) || M_TEST_AXIS(Z_AXIS)
2458 || M_TEST_AXIS(CB_AXIS)
2459 ) {
2460 int_error(NO_CARET, "axis ranges must be above 0 for log scale!");
2461 return;
2462 }
2463 #endif
2464 do_3dplot(plots, pcount, quick);
2465 }
2466
2467 #undef M_TEST_AXIS
2468 }
2469
2470
2471 /*
2472 * bind related functions
2473 */
2474
2475 static void
bind_install_default_bindings()2476 bind_install_default_bindings()
2477 {
2478 bind_remove_all();
2479 bind_append("a", (char *) 0, builtin_autoscale);
2480 bind_append("b", (char *) 0, builtin_toggle_border);
2481 bind_append("e", (char *) 0, builtin_replot);
2482 bind_append("g", (char *) 0, builtin_toggle_grid);
2483 bind_append("h", (char *) 0, builtin_help);
2484 bind_append("i", (char *) 0, builtin_invert_plot_visibilities);
2485 bind_append("l", (char *) 0, builtin_toggle_log);
2486 bind_append("L", (char *) 0, builtin_nearest_log);
2487 bind_append("m", (char *) 0, builtin_toggle_mouse);
2488 bind_append("r", (char *) 0, builtin_toggle_ruler);
2489 bind_append("V", (char *) 0, builtin_set_plots_invisible);
2490 bind_append("v", (char *) 0, builtin_set_plots_visible);
2491 bind_append("1", (char *) 0, builtin_decrement_mousemode);
2492 bind_append("2", (char *) 0, builtin_increment_mousemode);
2493 bind_append("5", (char *) 0, builtin_toggle_polardistance);
2494 bind_append("6", (char *) 0, builtin_toggle_verbose);
2495 bind_append("7", (char *) 0, builtin_toggle_ratio);
2496 bind_append("n", (char *) 0, builtin_zoom_next);
2497 bind_append("p", (char *) 0, builtin_zoom_previous);
2498 bind_append("u", (char *) 0, builtin_unzoom);
2499 bind_append("+", (char *) 0, builtin_zoom_in_around_mouse);
2500 bind_append("=", (char *) 0, builtin_zoom_in_around_mouse); /* same key as + but no need for Shift */
2501 bind_append("-", (char *) 0, builtin_zoom_out_around_mouse);
2502 bind_append("Right", (char *) 0, builtin_rotate_right);
2503 bind_append("Up", (char *) 0, builtin_rotate_up);
2504 bind_append("Left", (char *) 0, builtin_rotate_left);
2505 bind_append("Down", (char *) 0, builtin_rotate_down);
2506 bind_append("Opt-<", (char *) 0, builtin_azimuth_left);
2507 bind_append("Opt->", (char *) 0, builtin_azimuth_right);
2508 bind_append("Escape", (char *) 0, builtin_cancel_zoom);
2509 }
2510
2511 static void
bind_clear(bind_t * b)2512 bind_clear(bind_t * b)
2513 {
2514 b->key = NO_KEY;
2515 b->modifier = 0;
2516 b->command = (char *) 0;
2517 b->builtin = 0;
2518 b->prev = (struct bind_t *) 0;
2519 b->next = (struct bind_t *) 0;
2520 }
2521
2522 /* returns the enum which corresponds to the
2523 * string (ptr) or NO_KEY if ptr matches not
2524 * any of special_keys. */
2525 static int
lookup_key(char * ptr,int * len)2526 lookup_key(char *ptr, int *len)
2527 {
2528 char **keyptr;
2529 /* first, search in the table of "usual well-known" keys */
2530 int what = lookup_table_nth(usual_special_keys, ptr);
2531 if (what >= 0) {
2532 *len = strlen(usual_special_keys[what].key);
2533 return usual_special_keys[what].value;
2534 }
2535 /* second, search in the table of other keys */
2536 for (keyptr = special_keys; *keyptr; ++keyptr) {
2537 if (!strcmp(ptr, *keyptr)) {
2538 *len = strlen(ptr);
2539 return keyptr - special_keys + GP_FIRST_KEY;
2540 }
2541 }
2542 return NO_KEY;
2543 }
2544
2545 /* returns 1 on success, else 0. */
2546 static int
bind_scan_lhs(bind_t * out,const char * in)2547 bind_scan_lhs(bind_t * out, const char *in)
2548 {
2549 static const char DELIM = '-';
2550 int itmp = NO_KEY;
2551 char *ptr;
2552 int len;
2553 bind_clear(out);
2554 if (!in) {
2555 return 0;
2556 }
2557 for (ptr = (char *) in; ptr && *ptr; /* EMPTY */ ) {
2558 if (!strncasecmp(ptr, "alt-", 4)) {
2559 out->modifier |= Mod_Alt;
2560 ptr += 4;
2561 } else if (!strncasecmp(ptr, "ctrl-", 5)) {
2562 out->modifier |= Mod_Ctrl;
2563 ptr += 5;
2564 } else if (!strncasecmp(ptr, "shift-", 6)) {
2565 out->modifier |= Mod_Shift;
2566 ptr += 6;
2567 } else if (!strncasecmp(ptr, "opt-", 4)) {
2568 out->modifier |= Mod_Opt;
2569 ptr += 4;
2570 } else if (NO_KEY != (itmp = lookup_key(ptr, &len))) {
2571 out->key = itmp;
2572 ptr += len;
2573 } else if ((out->key = *ptr++) && *ptr && *ptr != DELIM) {
2574 fprintf(stderr, "bind: cannot parse %s\n", in);
2575 return 0;
2576 }
2577 }
2578 if (NO_KEY == out->key)
2579 return 0; /* failed */
2580 else
2581 return 1; /* success */
2582 }
2583
2584 /* note, that this returns a pointer
2585 * to the static char* `out' which is
2586 * modified on subsequent calls.
2587 */
2588 static char *
bind_fmt_lhs(const bind_t * in)2589 bind_fmt_lhs(const bind_t * in)
2590 {
2591 static char out[0x40];
2592 out[0] = '\0'; /* empty string */
2593 if (!in)
2594 return out;
2595 if (in->modifier & Mod_Ctrl) {
2596 sprintf(out, "Ctrl-");
2597 }
2598 if (in->modifier & Mod_Alt) {
2599 strcat(out, "Alt-");
2600 }
2601 if (in->modifier & Mod_Shift) {
2602 strcat(out, "Shift-");
2603 }
2604 if (in->key > GP_FIRST_KEY && in->key < GP_LAST_KEY) {
2605 strcat(out,special_keys[in->key - GP_FIRST_KEY]);
2606 } else {
2607 int k = 0;
2608 for ( ; usual_special_keys[k].value > 0; k++) {
2609 if (usual_special_keys[k].value == in->key) {
2610 strcat(out, usual_special_keys[k].key);
2611 k = -1;
2612 break;
2613 }
2614 }
2615 if (k >= 0) {
2616 char foo[2] = {'\0','\0'};
2617 foo[0] = in->key;
2618 strcat(out,foo);
2619 }
2620 }
2621 return out;
2622 }
2623
2624 static int
bind_matches(const bind_t * a,const bind_t * b)2625 bind_matches(const bind_t * a, const bind_t * b)
2626 {
2627 int a_mod = a->modifier;
2628 int b_mod = b->modifier;
2629
2630 /* discard Shift modifier (except for mouse button) */
2631 if (a->key != GP_Button1) {
2632 a_mod &= (Mod_Ctrl | Mod_Alt);
2633 b_mod &= (Mod_Ctrl | Mod_Alt);
2634 }
2635
2636 if (a->key == b->key && a_mod == b_mod)
2637 return 1;
2638 else if (a->key == b->key && (b->modifier & Mod_Opt))
2639 /* Mod_Opt means both Alt and Ctrl are optional */
2640 return 2;
2641 else
2642 return 0;
2643 }
2644
2645 static void
bind_display_one(bind_t * ptr)2646 bind_display_one(bind_t * ptr)
2647 {
2648 fprintf(stderr, " %-13s ", bind_fmt_lhs(ptr));
2649 fprintf(stderr, "%c ", ptr->allwindows ? '*' : ' ');
2650 if (ptr->command) {
2651 fprintf(stderr, "`%s`\n", ptr->command);
2652 } else if (ptr->builtin) {
2653 fprintf(stderr, "%s\n", ptr->builtin(0));
2654 } else {
2655 fprintf(stderr, "`%s:%d oops.'\n", __FILE__, __LINE__);
2656 }
2657 }
2658
2659 static void
bind_display(char * lhs)2660 bind_display(char *lhs)
2661 {
2662 bind_t *ptr;
2663 bind_t lhs_scanned;
2664
2665 if (!bindings) {
2666 bind_install_default_bindings();
2667 }
2668
2669 if (!lhs) {
2670 /* display all bindings */
2671 char fmt[] = " %-17s %s\n";
2672 fprintf(stderr, "\n");
2673 /* mouse buttons */
2674 fprintf(stderr, fmt, "<B1> doubleclick", "send mouse coordinates to clipboard (pm win wxt x11)");
2675 fprintf(stderr, fmt, "<B2>", "annotate the graph using `mouseformat` (see keys '1', '2')");
2676 fprintf(stderr, fmt, "", "or draw labels if `set mouse labels is on`");
2677 fprintf(stderr, fmt, "<Ctrl-B2>", "remove label close to pointer if `set mouse labels` is on");
2678 fprintf(stderr, fmt, "<B3>", "mark zoom region (only for 2d-plots and maps)");
2679 fprintf(stderr, fmt, "<B1-Motion>", "change view (rotation); use <Ctrl> to rotate the axes only");
2680 fprintf(stderr, fmt, "<B2-Motion>", "change view (scaling); use <Ctrl> to scale the axes only");
2681 fprintf(stderr, fmt, "<Shift-B2-Motion>", "vertical motion -- change xyplane");
2682 fprintf(stderr, fmt, "<B3-Motion>", "change view (azimuth)");
2683
2684 /* mouse wheel */
2685 fprintf(stderr, fmt, "<wheel-up>", " scroll up (in +Y direction)");
2686 fprintf(stderr, fmt, "<wheel-down>", " scroll down");
2687 fprintf(stderr, fmt, "<shift-wheel-up>", " scroll left (in -X direction)");
2688 fprintf(stderr, fmt, "<shift-wheel-down>", " scroll right");
2689 fprintf(stderr, fmt, "<Control-WheelUp>", " zoom in on mouse position");
2690 fprintf(stderr, fmt, "<Control-WheelDown>", "zoom out on mouse position");
2691 fprintf(stderr, fmt, "<Shift-Control-WheelUp>", " pinch on x");
2692 fprintf(stderr, fmt, "<Shift-Control-WheelDown>", "expand on x");
2693
2694 fprintf(stderr, "\n");
2695 /* keystrokes */
2696 #if (0) /* Not implemented in the core code! */
2697 #ifndef DISABLE_SPACE_RAISES_CONSOLE
2698 fprintf(stderr, " %-12s %s\n", "Space", "raise gnuplot console window");
2699 #endif
2700 #endif
2701 fprintf(stderr, " %-12s * %s\n", "q", "close this plot window");
2702 fprintf(stderr, "\n");
2703 for (ptr = bindings; ptr; ptr = ptr->next) {
2704 bind_display_one(ptr);
2705 }
2706 fprintf(stderr, "\n");
2707 fprintf(stderr, " * indicates this key is active from all plot windows\n");
2708 fprintf(stderr, "\n");
2709 return;
2710 }
2711
2712 if (!bind_scan_lhs(&lhs_scanned, lhs)) {
2713 return;
2714 }
2715 for (ptr = bindings; ptr; ptr = ptr->next) {
2716 if (bind_matches(&lhs_scanned, ptr)) {
2717 bind_display_one(ptr);
2718 break; /* only one match */
2719 }
2720 }
2721 }
2722
2723 static void
bind_remove(bind_t * b)2724 bind_remove(bind_t * b)
2725 {
2726 if (!b) {
2727 return;
2728 } else if (b->builtin) {
2729 /* don't remove builtins, just remove the overriding command */
2730 if (b->command) {
2731 free(b->command);
2732 b->command = (char *) 0;
2733 }
2734 return;
2735 }
2736 if (b->prev)
2737 b->prev->next = b->next;
2738 if (b->next)
2739 b->next->prev = b->prev;
2740 else
2741 bindings->prev = b->prev;
2742 if (b->command) {
2743 free(b->command);
2744 b->command = (char *) 0;
2745 }
2746 if (b == bindings) {
2747 bindings = b->next;
2748 if (bindings && bindings->prev) {
2749 bindings->prev->next = (bind_t *) 0;
2750 }
2751 }
2752 free(b);
2753 }
2754
2755 static void
bind_append(char * lhs,char * rhs,char * (* builtin)(struct gp_event_t * ge))2756 bind_append(char *lhs, char *rhs, char *(*builtin) (struct gp_event_t * ge))
2757 {
2758 bind_t *new = (bind_t *) gp_alloc(sizeof(bind_t), "bind_append->new");
2759
2760 if (!bind_scan_lhs(new, lhs)) {
2761 free(new);
2762 return;
2763 }
2764
2765 if (!bindings) {
2766 /* first binding */
2767 bindings = new;
2768 } else {
2769
2770 bind_t *ptr;
2771 for (ptr = bindings; ptr; ptr = ptr->next) {
2772 if (bind_matches(new, ptr)) {
2773 /* overwriting existing binding */
2774 if (!rhs) {
2775 ptr->builtin = builtin;
2776 } else if (*rhs) {
2777 if (ptr->command) {
2778 free(ptr->command);
2779 ptr->command = (char *) 0;
2780 }
2781 ptr->command = rhs;
2782 } else { /* rhs is an empty string, so remove the binding */
2783 bind_remove(ptr);
2784 }
2785 free(new); /* don't need it any more */
2786 return;
2787 }
2788 }
2789 /* if we're here, the binding does not exist yet */
2790 /* append binding ... */
2791 bindings->prev->next = new;
2792 new->prev = bindings->prev;
2793 }
2794
2795 bindings->prev = new;
2796 new->next = (struct bind_t *) 0;
2797 new->allwindows = FALSE; /* Can be explicitly set later */
2798 if (!rhs) {
2799 new->builtin = builtin;
2800 } else if (*rhs) {
2801 new->command = rhs; /* was allocated in command.c */
2802 } else {
2803 bind_remove(new);
2804 }
2805 }
2806
2807 void
bind_process(char * lhs,char * rhs,TBOOLEAN allwindows)2808 bind_process(char *lhs, char *rhs, TBOOLEAN allwindows)
2809 {
2810 if (!bindings) {
2811 bind_install_default_bindings();
2812 }
2813 if (!rhs) {
2814 bind_display(lhs);
2815 } else {
2816 bind_append(lhs, rhs, 0);
2817 if (allwindows)
2818 bind_all(lhs);
2819 }
2820 if (lhs)
2821 free(lhs);
2822 }
2823
2824 void
bind_all(char * lhs)2825 bind_all(char *lhs)
2826 {
2827 bind_t *ptr;
2828 bind_t keypress;
2829
2830 if (!bind_scan_lhs(&keypress, lhs))
2831 return;
2832
2833 for (ptr = bindings; ptr; ptr = ptr->next) {
2834 if (bind_matches(&keypress, ptr))
2835 ptr->allwindows = TRUE;
2836 }
2837 }
2838
2839 void
bind_remove_all()2840 bind_remove_all()
2841 {
2842 bind_t *ptr;
2843 bind_t *safe;
2844 for (ptr = bindings; ptr; safe = ptr, ptr = ptr->next, free(safe)) {
2845 if (ptr->command) {
2846 free(ptr->command);
2847 ptr->command = (char *) 0;
2848 }
2849 }
2850 bindings = (bind_t *) 0;
2851 }
2852
2853 /* Ruler is on, thus recalc its (px,py) from (x,y) for the current zoom and
2854 log axes.
2855 */
2856 static void
recalc_ruler_pos()2857 recalc_ruler_pos()
2858 {
2859 double P, dummy;
2860 if (is_3d_plot) {
2861 /* To be exact, it is 'set view map' splot. */
2862 int ppx, ppy;
2863 dummy = 1.0; /* dummy value, but not 0.0 for the fear of log z-axis */
2864 map3d_xy(ruler.x, ruler.y, dummy, &ppx, &ppy);
2865 ruler.px = ppx;
2866 ruler.py = ppy;
2867 return;
2868 }
2869 /* It is 2D plot. */
2870 if (axis_array[FIRST_X_AXIS].log && ruler.x < 0)
2871 ruler.px = -1;
2872 else {
2873 P = AXIS_LOG_VALUE(FIRST_X_AXIS, ruler.x);
2874 ruler.px = AXIS_MAP(FIRST_X_AXIS, P);
2875 }
2876 if (axis_array[FIRST_Y_AXIS].log && ruler.y < 0)
2877 ruler.py = -1;
2878 else {
2879 P = AXIS_LOG_VALUE(FIRST_Y_AXIS, ruler.y);
2880 ruler.py = AXIS_MAP(FIRST_Y_AXIS, P);
2881 }
2882 MousePosToGraphPosReal(ruler.px, ruler.py, &dummy, &dummy, &ruler.x2, &ruler.y2);
2883 }
2884
2885
2886 /* Recalculate and replot the ruler after a '(re)plot'. Called from term.c.
2887 */
2888 void
update_ruler()2889 update_ruler()
2890 {
2891 if (!term->set_ruler || !ruler.on)
2892 return;
2893 (*term->set_ruler) (-1, -1);
2894 recalc_ruler_pos();
2895 (*term->set_ruler) (ruler.px, ruler.py);
2896 }
2897
2898 /* Set ruler on/off, and set its position.
2899 Called from set.c for 'set mouse ruler ...' command.
2900 */
2901 void
set_ruler(TBOOLEAN on,int mx,int my)2902 set_ruler(TBOOLEAN on, int mx, int my)
2903 {
2904 struct gp_event_t ge;
2905 if (ruler.on == FALSE && on == FALSE)
2906 return;
2907 if (ruler.on == TRUE && on == TRUE && (mx < 0 || my < 0))
2908 return;
2909 if (ruler.on == TRUE) /* ruler is on => switch it off */
2910 builtin_toggle_ruler(&ge);
2911 /* now the ruler is off */
2912 if (on == FALSE) /* want ruler off */
2913 return;
2914 if (mx>=0 && my>=0) { /* change ruler position */
2915 ge.mx = mx;
2916 ge.my = my;
2917 } else { /* don't change ruler position */
2918 ge.mx = ruler.px;
2919 ge.my = ruler.py;
2920 }
2921 builtin_toggle_ruler(&ge);
2922 }
2923
2924 /* for checking if we change from plot to splot (or vice versa) */
2925 int
plot_mode(int set)2926 plot_mode(int set)
2927 {
2928 static int mode = MODE_PLOT;
2929 if (MODE_PLOT == set || MODE_SPLOT == set) {
2930 if (mode != set) {
2931 turn_ruler_off();
2932 }
2933 mode = set;
2934 }
2935 return mode;
2936 }
2937
2938 static void
turn_ruler_off()2939 turn_ruler_off()
2940 {
2941 if (ruler.on) {
2942 struct udvt_entry *u;
2943 ruler.on = FALSE;
2944 if (term && term->set_ruler) {
2945 (*term->set_ruler) (-1, -1);
2946 }
2947 if ((u = add_udv_by_name("MOUSE_RULER_X")))
2948 u->udv_value.type = NOTDEFINED;
2949 if ((u = add_udv_by_name("MOUSE_RULER_Y")))
2950 u->udv_value.type = NOTDEFINED;
2951 if (display_ipc_commands()) {
2952 fprintf(stderr, "turning ruler off.\n");
2953 }
2954 }
2955 }
2956
2957 static int
nearest_label_tag(int xref,int yref)2958 nearest_label_tag(int xref, int yref)
2959 {
2960 double min = -1;
2961 int min_tag = -1;
2962 double diff_squared;
2963 int x, y;
2964 struct text_label *this_label;
2965 int xd;
2966 int yd;
2967
2968 for (this_label = first_label; this_label != NULL; this_label = this_label->next) {
2969 if (is_3d_plot) {
2970 map3d_position(&this_label->place, &xd, &yd, "label");
2971 xd -= xref;
2972 yd -= yref;
2973 } else {
2974 map_position(&this_label->place, &x, &y, "label");
2975 xd = x - xref;
2976 yd = y - yref;
2977 }
2978 diff_squared = xd * xd + yd * yd;
2979 if (-1 == min || min > diff_squared) {
2980 /* now we check if we're within a certain
2981 * threshold around the label */
2982 double tic_diff_squared;
2983 int htic, vtic;
2984 get_offsets(this_label, &htic, &vtic);
2985 tic_diff_squared = htic * htic + vtic * vtic;
2986 if (diff_squared < tic_diff_squared) {
2987 min = diff_squared;
2988 min_tag = this_label->tag;
2989 }
2990 }
2991 }
2992
2993 return min_tag;
2994 }
2995
2996 static void
remove_label(int x,int y)2997 remove_label(int x, int y)
2998 {
2999 int tag = nearest_label_tag(x, y);
3000 if (-1 != tag) {
3001 char cmd[0x40];
3002 sprintf(cmd, "unset label %d", tag);
3003 do_string_replot(cmd);
3004 }
3005 }
3006
3007 static void
put_label(char * label,double x,double y)3008 put_label(char *label, double x, double y)
3009 {
3010 char cmd[0xff];
3011 sprintf(cmd, "set label \"%s\" at %g,%g %s", label, x, y,
3012 mouse_setting.labelopts ? mouse_setting.labelopts : "point pt 1");
3013 do_string_replot(cmd);
3014 }
3015
3016 #ifdef OS2
3017 /* routine required by pm.trm: fill in information needed for (un)checking
3018 menu items in the Presentation Manager terminal
3019 */
3020 void
PM_set_gpPMmenu(struct t_gpPMmenu * gpPMmenu)3021 PM_set_gpPMmenu __PROTO((struct t_gpPMmenu * gpPMmenu))
3022 {
3023 gpPMmenu->use_mouse = mouse_setting.on;
3024 if (zoom_now == NULL)
3025 gpPMmenu->where_zoom_queue = 0;
3026 else {
3027 gpPMmenu->where_zoom_queue = (zoom_now == zoom_head) ? 0 : 1;
3028 if (zoom_now->prev != NULL)
3029 gpPMmenu->where_zoom_queue |= 2;
3030 if (zoom_now->next != NULL)
3031 gpPMmenu->where_zoom_queue |= 4;
3032 }
3033 gpPMmenu->polar_distance = mouse_setting.polardistance;
3034 }
3035 #endif
3036
3037 /* Save current mouse position to user-accessible variables.
3038 * Save the keypress or mouse button that triggered this in MOUSE_KEY,
3039 * and define MOUSE_BUTTON if it was a button click.
3040 */
3041 static void
load_mouse_variables(double x,double y,TBOOLEAN button,int c)3042 load_mouse_variables(double x, double y, TBOOLEAN button, int c)
3043 {
3044 struct udvt_entry *current;
3045
3046 MousePosToGraphPosReal(x, y, &real_x, &real_y, &real_x2, &real_y2);
3047
3048 if ((current = add_udv_by_name("MOUSE_BUTTON"))) {
3049 Ginteger(¤t->udv_value, button?c:-1);
3050 if (!button)
3051 current->udv_value.type = NOTDEFINED;
3052 }
3053 if ((current = add_udv_by_name("MOUSE_KEY"))) {
3054 Ginteger(¤t->udv_value,c);
3055 }
3056 if ((current = add_udv_by_name("MOUSE_CHAR"))) {
3057 char *keychar = gp_alloc(2,"key_char");
3058 keychar[0] = c;
3059 keychar[1] = '\0';
3060 gpfree_string(¤t->udv_value);
3061 Gstring(¤t->udv_value,keychar);
3062 }
3063 if ((current = add_udv_by_name("MOUSE_X"))) {
3064 Gcomplex(¤t->udv_value,real_x,0);
3065 }
3066 if ((current = add_udv_by_name("MOUSE_Y"))) {
3067 Gcomplex(¤t->udv_value,real_y,0);
3068 }
3069 if ((current = add_udv_by_name("MOUSE_X2"))) {
3070 Gcomplex(¤t->udv_value,real_x2,0);
3071 }
3072 if ((current = add_udv_by_name("MOUSE_Y2"))) {
3073 Gcomplex(¤t->udv_value,real_y2,0);
3074 }
3075 if ((current = add_udv_by_name("MOUSE_SHIFT"))) {
3076 Ginteger(¤t->udv_value, modifier_mask & Mod_Shift);
3077 }
3078 if ((current = add_udv_by_name("MOUSE_ALT"))) {
3079 Ginteger(¤t->udv_value, modifier_mask & Mod_Alt);
3080 }
3081 if ((current = add_udv_by_name("MOUSE_CTRL"))) {
3082 Ginteger(¤t->udv_value, modifier_mask & Mod_Ctrl);
3083 }
3084 return;
3085 }
3086
3087 #endif /* USE_MOUSE */
3088