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comparison src/DLD-FUNCTIONS/fltk_backend.cc @ 10792:91342260063e

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mouse rotation for fltk backend
author Shai Ayal <shaiay@users.sourceforge.net>
date Mon, 19 Jul 2010 06:17:54 +0300
parents 26d51c6e1c4c
children d479134f59de
comparison
equal deleted inserted replaced
10791:3140cb7a05a1 10792:91342260063e
67 static double fltk_maxtime = 1e-2; 67 static double fltk_maxtime = 1e-2;
68 68
69 const char* help_text = "\ 69 const char* help_text = "\
70 Keyboard Shortcuts\n\ 70 Keyboard Shortcuts\n\
71 a - autoscale\n\ 71 a - autoscale\n\
72 p - pan/zoom\n\
73 r - rotate\n\
72 g - toggle grid\n\ 74 g - toggle grid\n\
73 \n\ 75 \n\
74 Mouse\n\ 76 Mouse\n\
75 left drag - pan\n\ 77 left drag - pan\n\
76 mouse wheel - zoom\n\ 78 mouse wheel - zoom\n\
217 class plot_window : public Fl_Window 219 class plot_window : public Fl_Window
218 { 220 {
219 public: 221 public:
220 plot_window (int xx, int yy, int ww, int hh, figure::properties& xfp) 222 plot_window (int xx, int yy, int ww, int hh, figure::properties& xfp)
221 : Fl_Window (xx, yy, ww, hh, "octave"), window_label (), shift (0), 223 : Fl_Window (xx, yy, ww, hh, "octave"), window_label (), shift (0),
222 fp (xfp), canvas (0), autoscale (0), togglegrid (0), help (0), 224 fp (xfp), canvas (0), autoscale (0), togglegrid (0), panzoom (0), rotate (0), help (0), status (0)
223 status (0)
224 { 225 {
225 callback (window_close, static_cast<void*> (this)); 226 callback (window_close, static_cast<void*> (this));
226 227
227 begin (); 228 begin ();
228 { 229 {
243 status_h, 244 status_h,
244 status_h, 245 status_h,
245 "G"); 246 "G");
246 togglegrid->callback (button_callback, static_cast<void*> (this)); 247 togglegrid->callback (button_callback, static_cast<void*> (this));
247 248
249 panzoom = new
250 Fl_Button (2 * status_h,
251 hh - status_h,
252 status_h,
253 status_h,
254 "P");
255 panzoom->callback (button_callback, static_cast<void*> (this));
256
257 rotate = new
258 Fl_Button (3 * status_h,
259 hh - status_h,
260 status_h,
261 status_h,
262 "R");
263 rotate->callback (button_callback, static_cast<void*> (this));
264
248 help = new 265 help = new
249 Fl_Button (2*status_h, 266 Fl_Button (4 * status_h,
250 hh - status_h, 267 hh - status_h,
251 status_h, 268 status_h,
252 status_h, 269 status_h,
253 "?"); 270 "?");
254 help->callback (button_callback, static_cast<void*> (this)); 271 help->callback (button_callback, static_cast<void*> (this));
255 272
256 status = new 273 status = new
257 Fl_Output (3*status_h, 274 Fl_Output (5 * status_h,
258 hh - status_h, 275 hh - status_h,
259 ww > 2*status_h ? ww - status_h : 0, 276 ww > 2*status_h ? ww - status_h : 0,
260 status_h, ""); 277 status_h, "");
261 278
262 status->textcolor (FL_BLACK); 279 status->textcolor (FL_BLACK);
277 end (); 294 end ();
278 295
279 status->show (); 296 status->show ();
280 autoscale->show (); 297 autoscale->show ();
281 togglegrid->show (); 298 togglegrid->show ();
299 panzoom->show ();
300 rotate->show ();
282 301
283 set_name (); 302 set_name ();
284 resizable (canvas); 303 resizable (canvas);
285 size_range (4*status_h, 2*status_h); 304 size_range (4*status_h, 2*status_h);
286 305 gui_mode = 1;
287 } 306 }
288 307
289 ~plot_window (void) 308 ~plot_window (void)
290 { 309 {
291 canvas->hide (); 310 canvas->hide ();
326 std::string window_label; 345 std::string window_label;
327 346
328 // Mod keys status 347 // Mod keys status
329 int shift; 348 int shift;
330 349
350 // Interactive Mode
351 // 1...pan/zoom, 2...rotate/zoom
352 int gui_mode;
353
331 // Figure properties. 354 // Figure properties.
332 figure::properties& fp; 355 figure::properties& fp;
333 356
334 // Status area height. 357 // Status area height.
335 static const int status_h = 20; 358 static const int status_h = 20;
353 if (widg == autoscale) 376 if (widg == autoscale)
354 axis_auto (); 377 axis_auto ();
355 378
356 if (widg == togglegrid) 379 if (widg == togglegrid)
357 toggle_grid (); 380 toggle_grid ();
381
382 if (widg == panzoom)
383 gui_mode = 1;
384
385 if (widg == rotate)
386 gui_mode = 2;
358 387
359 if (widg == help) 388 if (widg == help)
360 fl_message ("%s", help_text); 389 fl_message ("%s", help_text);
361 } 390 }
362 391
363 OpenGL_fltk* canvas; 392 OpenGL_fltk* canvas;
364 Fl_Button* autoscale; 393 Fl_Button* autoscale;
365 Fl_Button* togglegrid; 394 Fl_Button* togglegrid;
395 Fl_Button* panzoom;
396 Fl_Button* rotate;
366 Fl_Button* help; 397 Fl_Button* help;
367 Fl_Output* status; 398 Fl_Output* status;
368 399
369 void axis_auto (void) 400 void axis_auto (void)
370 { 401 {
380 octave_value_list args; 411 octave_value_list args;
381 args(0) = fp.get_currentaxes ().as_octave_value (); 412 args(0) = fp.get_currentaxes ().as_octave_value ();
382 feval ("grid", args); 413 feval ("grid", args);
383 mark_modified (); 414 mark_modified ();
384 } 415 }
385 416
386 void pixel2pos 417 void pixel2pos
387 (graphics_handle ax, int px, int py, double& xx, double& yy) const 418 (graphics_handle ax, int px, int py, double& xx, double& yy) const
388 { 419 {
389 pixel2pos ( gh_manager::get_object (ax), px, py, xx, yy); 420 pixel2pos ( gh_manager::get_object (ax), px, py, xx, yy);
390 } 421 }
439 void pixel2status (graphics_object ax, int px0, int py0, 470 void pixel2status (graphics_object ax, int px0, int py0,
440 int px1 = -1, int py1 = -1) 471 int px1 = -1, int py1 = -1)
441 { 472 {
442 double x0, y0, x1, y1; 473 double x0, y0, x1, y1;
443 std::stringstream cbuf; 474 std::stringstream cbuf;
444 475 cbuf.precision (4);
476 cbuf.width (6);
445 pixel2pos (ax, px0, py0, x0, y0); 477 pixel2pos (ax, px0, py0, x0, y0);
446 cbuf << "[" << x0 << ", " << y0 << "]"; 478 cbuf << "[" << x0 << ", " << y0 << "]";
447 if (px1 >= 0) 479 if (px1 >= 0)
448 { 480 {
449 pixel2pos (ax, px1, py1, x1, y1); 481 pixel2pos (ax, px1, py1, x1, y1);
452 484
453 status->value (cbuf.str ().c_str ()); 485 status->value (cbuf.str ().c_str ());
454 status->redraw (); 486 status->redraw ();
455 } 487 }
456 488
489 void view2status (graphics_object ax)
490 {
491 if (ax && ax.isa ("axes"))
492 {
493 axes::properties& ap =
494 dynamic_cast<axes::properties&> (ax.get_properties ());
495 std::stringstream cbuf;
496 cbuf.precision (4);
497 cbuf.width (6);
498 Matrix v (1,2,0);
499 v = ap.get("view").matrix_value();
500 cbuf << "[azimuth: " << v(0) << ", elevation: " << v(1) << "]";
501
502 status->value (cbuf.str ().c_str ());
503 status->redraw ();
504 }
505 }
506
457 void set_currentpoint (int px, int py) 507 void set_currentpoint (int px, int py)
458 { 508 {
459 Matrix pos (1,2,0); 509 Matrix pos (1,2,0);
460 pos(0) = px; 510 pos(0) = px;
461 pos(1) = h () - status_h - py; 511 pos(1) = h () - status_h - py;
581 631
582 case 'g': 632 case 'g':
583 case 'G': 633 case 'G':
584 toggle_grid (); 634 toggle_grid ();
585 break; 635 break;
636
637 case 'p':
638 case 'P':
639 gui_mode = 1;
640 break;
641
642 case 'r':
643 case 'R':
644 gui_mode = 2;
645 break;
586 } 646 }
587 } 647 }
588 break; 648 break;
589 649
590 case FL_KEYUP: 650 case FL_KEYUP:
622 if (Fl::event_button () == 1 || Fl::event_button () == 3) 682 if (Fl::event_button () == 1 || Fl::event_button () == 3)
623 return 1; 683 return 1;
624 break; 684 break;
625 685
626 case FL_DRAG: 686 case FL_DRAG:
627 pixel2status (ax0, px0, py0, Fl::event_x (), Fl::event_y ());
628 if (fp.get_windowbuttonmotionfcn ().is_defined ()) 687 if (fp.get_windowbuttonmotionfcn ().is_defined ())
629 { 688 {
630 set_currentpoint (Fl::event_x (), Fl::event_y ()); 689 set_currentpoint (Fl::event_x (), Fl::event_y ());
631 fp.execute_windowbuttonmotionfcn (); 690 fp.execute_windowbuttonmotionfcn ();
632 } 691 }
633 692
634 if (Fl::event_button () == 1) 693 if (Fl::event_button () == 1)
635 { 694 {
636 if (ax0 && ax0.isa ("axes")) 695 if (ax0 && ax0.isa ("axes"))
637 { 696 {
697 if (gui_mode == 1)
698 pixel2status (ax0, px0, py0, Fl::event_x (), Fl::event_y ());
699 else
700 view2status (ax0);
638 axes::properties& ap = 701 axes::properties& ap =
639 dynamic_cast<axes::properties&> (ax0.get_properties ()); 702 dynamic_cast<axes::properties&> (ax0.get_properties ());
640 703
641 double x0, y0, x1, y1; 704 double x0, y0, x1, y1;
705 Matrix pos = fp.get_position ().matrix_value ();
642 pixel2pos (ax0, px0, py0, x0, y0); 706 pixel2pos (ax0, px0, py0, x0, y0);
643 pixel2pos (ax0, Fl::event_x (), Fl::event_y (), x1, y1); 707 pixel2pos (ax0, Fl::event_x (), Fl::event_y (), x1, y1);
708
709 if (gui_mode == 1)
710 ap.translate_view (x0 - x1, y0 - y1);
711 else if (gui_mode == 2)
712 {
713 double daz, del;
714 daz = (Fl::event_x () - px0) / pos(2) * 360;
715 del = (Fl::event_y () - py0) / pos(3) * 360;
716 ap.rotate_view (del, daz);
717 }
718
644 px0 = Fl::event_x (); 719 px0 = Fl::event_x ();
645 py0 = Fl::event_y (); 720 py0 = Fl::event_y ();
646
647 ap.translate_view (x0 - x1, y0 - y1);
648 mark_modified (); 721 mark_modified ();
649 } 722 }
650 return 1; 723 return 1;
651 } 724 }
652 else if (Fl::event_button () == 3) 725 else if (Fl::event_button () == 3)
653 { 726 {
727 pixel2status (ax0, px0, py0, Fl::event_x (), Fl::event_y ());
654 Matrix zoom_box (1,4,0); 728 Matrix zoom_box (1,4,0);
655 zoom_box (0) = px0; 729 zoom_box (0) = px0;
656 zoom_box (1) = py0; 730 zoom_box (1) = py0;
657 zoom_box (2) = Fl::event_x (); 731 zoom_box (2) = Fl::event_x ();
658 zoom_box (3) = Fl::event_y (); 732 zoom_box (3) = Fl::event_y ();