9182d9dbeeee5779f2fcdfd79456fed59169588a
1 #define __PERSP3D_C__
3 /*
4 * Class modelling a 3D perspective as an SPObject
5 *
6 * Authors:
7 * Maximilian Albert <Anhalter42@gmx.de>
8 *
9 * Copyright (C) 2007 authors
10 *
11 * Released under GNU GPL, read the file 'COPYING' for more information
12 */
14 #include "persp3d.h"
15 #include "perspective-line.h"
16 #include "attributes.h"
17 #include "document-private.h"
18 #include "vanishing-point.h"
19 #include "box3d-context.h"
20 #include "box3d.h"
21 #include "xml/document.h"
22 #include "xml/node-event-vector.h"
23 #include "desktop-handles.h"
24 #include <glibmm/i18n.h>
26 static void persp3d_class_init(Persp3DClass *klass);
27 static void persp3d_init(Persp3D *stop);
29 static void persp3d_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
30 static void persp3d_release(SPObject *object);
31 static void persp3d_set(SPObject *object, unsigned key, gchar const *value);
32 static void persp3d_update(SPObject *object, SPCtx *ctx, guint flags);
33 static Inkscape::XML::Node *persp3d_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
35 static void persp3d_on_repr_attr_changed (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive, void * data);
37 static SPObjectClass *persp3d_parent_class;
39 static int global_counter = 0;
41 /**
42 * Registers Persp3d class and returns its type.
43 */
44 GType
45 persp3d_get_type()
46 {
47 static GType type = 0;
48 if (!type) {
49 GTypeInfo info = {
50 sizeof(Persp3DClass),
51 NULL, NULL,
52 (GClassInitFunc) persp3d_class_init,
53 NULL, NULL,
54 sizeof(Persp3D),
55 16,
56 (GInstanceInitFunc) persp3d_init,
57 NULL, /* value_table */
58 };
59 type = g_type_register_static(SP_TYPE_OBJECT, "Persp3D", &info, (GTypeFlags)0);
60 }
61 return type;
62 }
64 static Inkscape::XML::NodeEventVector const persp3d_repr_events = {
65 NULL, /* child_added */
66 NULL, /* child_removed */
67 persp3d_on_repr_attr_changed,
68 NULL, /* content_changed */
69 NULL /* order_changed */
70 };
72 /**
73 * Callback to initialize Persp3D vtable.
74 */
75 static void persp3d_class_init(Persp3DClass *klass)
76 {
77 SPObjectClass *sp_object_class = (SPObjectClass *) klass;
79 persp3d_parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
81 sp_object_class->build = persp3d_build;
82 sp_object_class->release = persp3d_release;
83 sp_object_class->set = persp3d_set;
84 sp_object_class->update = persp3d_update;
85 sp_object_class->write = persp3d_write;
86 }
88 /**
89 * Callback to initialize Persp3D object.
90 */
91 static void
92 persp3d_init(Persp3D *persp)
93 {
94 persp->tmat = Proj::TransfMat3x4 ();
96 //persp->boxes = NULL;
97 persp->boxes_transformed.clear();
98 persp->document = NULL;
100 persp->my_counter = global_counter++;
101 }
103 /**
104 * Virtual build: set persp3d attributes from its associated XML node.
105 */
106 static void persp3d_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
107 {
108 if (((SPObjectClass *) persp3d_parent_class)->build)
109 (* ((SPObjectClass *) persp3d_parent_class)->build)(object, document, repr);
111 /* calls sp_object_set for the respective attributes */
112 // The transformation matrix is updated according to the values we read for the VPs
113 sp_object_read_attr(object, "inkscape:vp_x");
114 sp_object_read_attr(object, "inkscape:vp_y");
115 sp_object_read_attr(object, "inkscape:vp_z");
116 sp_object_read_attr(object, "inkscape:persp3d-origin");
118 if (repr) {
119 repr->addListener (&persp3d_repr_events, object);
120 }
122 // FIXME: What precisely does this do and is it necessary for perspectives?
123 /* Register ourselves */
124 //sp_document_add_resource(document, "persp3d", object);
125 }
127 /**
128 * Virtual release of Persp3D members before destruction.
129 */
130 static void persp3d_release(SPObject *object) {
131 //Persp3D *persp = (Persp3D *) object;
133 SP_OBJECT_REPR(object)->removeListenerByData(object);
135 // FIXME: What precisely does this do and is it necessary for perspectives?
136 /**
137 if (SP_OBJECT_DOCUMENT(object)) {
138 // Unregister ourselves
139 sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "persp3d", SP_OBJECT(object));
140 }
141 **/
142 }
145 /**
146 * Virtual set: set attribute to value.
147 */
148 // FIXME: Currently we only read the finite positions of vanishing points;
149 // should we move VPs into their own repr (as it's done for SPStop, e.g.)?
150 static void
151 persp3d_set(SPObject *object, unsigned key, gchar const *value)
152 {
153 Persp3D *persp = SP_PERSP3D (object);
155 switch (key) {
156 case SP_ATTR_INKSCAPE_PERSP3D_VP_X: {
157 if (value) {
158 Proj::Pt2 new_image (value);
159 persp3d_update_with_point (persp, Proj::X, new_image);
160 }
161 break;
162 }
163 case SP_ATTR_INKSCAPE_PERSP3D_VP_Y: {
164 if (value) {
165 Proj::Pt2 new_image (value);
166 persp3d_update_with_point (persp, Proj::Y, new_image);
167 break;
168 }
169 }
170 case SP_ATTR_INKSCAPE_PERSP3D_VP_Z: {
171 if (value) {
172 Proj::Pt2 new_image (value);
173 persp3d_update_with_point (persp, Proj::Z, new_image);
174 break;
175 }
176 }
177 case SP_ATTR_INKSCAPE_PERSP3D_ORIGIN: {
178 if (value) {
179 Proj::Pt2 new_image (value);
180 persp3d_update_with_point (persp, Proj::W, new_image);
181 break;
182 }
183 }
184 default: {
185 if (((SPObjectClass *) persp3d_parent_class)->set)
186 (* ((SPObjectClass *) persp3d_parent_class)->set)(object, key, value);
187 break;
188 }
189 }
191 // FIXME: Is this the right place for resetting the draggers?
192 SPEventContext *ec = inkscape_active_event_context();
193 if (SP_IS_BOX3D_CONTEXT(ec)) {
194 Box3DContext *bc = SP_BOX3D_CONTEXT(ec);
195 bc->_vpdrag->updateDraggers();
196 bc->_vpdrag->updateLines();
197 bc->_vpdrag->updateBoxHandles();
198 bc->_vpdrag->updateBoxReprs();
199 }
200 }
202 static void
203 persp3d_update(SPObject *object, SPCtx *ctx, guint flags)
204 {
205 if (flags & SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG) {
207 /* TODO: Should we update anything here? */
209 }
211 if (((SPObjectClass *) persp3d_parent_class)->update)
212 ((SPObjectClass *) persp3d_parent_class)->update(object, ctx, flags);
213 }
215 Persp3D *
216 persp3d_create_xml_element (SPDocument *document, Persp3D *dup) {// if dup is given, copy the attributes over
217 SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS(document);
218 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
219 Inkscape::XML::Node *repr;
220 if (dup) {
221 repr = SP_OBJECT_REPR(dup)->duplicate (xml_doc);
222 } else {
223 /* if no perspective is given, create a default one */
224 repr = xml_doc->createElement("inkscape:perspective");
225 repr->setAttribute("sodipodi:type", "inkscape:persp3d");
227 Proj::Pt2 proj_vp_x = Proj::Pt2 (-50.0, 600.0, 1.0);
228 Proj::Pt2 proj_vp_y = Proj::Pt2 ( 0.0,1000.0, 0.0);
229 Proj::Pt2 proj_vp_z = Proj::Pt2 (700.0, 600.0, 1.0);
230 Proj::Pt2 proj_origin = Proj::Pt2 (300.0, 400.0, 1.0);
232 gchar *str = NULL;
233 str = proj_vp_x.coord_string();
234 repr->setAttribute("inkscape:vp_x", str);
235 g_free (str);
236 str = proj_vp_y.coord_string();
237 repr->setAttribute("inkscape:vp_y", str);
238 g_free (str);
239 str = proj_vp_z.coord_string();
240 repr->setAttribute("inkscape:vp_z", str);
241 g_free (str);
242 str = proj_origin.coord_string();
243 repr->setAttribute("inkscape:persp3d-origin", str);
244 g_free (str);
245 Inkscape::GC::release(repr);
246 }
248 /* Append the new persp3d to defs */
249 SP_OBJECT_REPR(defs)->addChild(repr, NULL);
250 Inkscape::GC::release(repr);
252 return (Persp3D *) sp_object_get_child_by_repr (SP_OBJECT(defs), repr);
253 }
255 /**
256 * Virtual write: write object attributes to repr.
257 */
258 static Inkscape::XML::Node *
259 persp3d_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
260 {
261 Persp3D *persp = SP_PERSP3D(object);
263 if ((flags & SP_OBJECT_WRITE_BUILD & SP_OBJECT_WRITE_EXT) && !repr) {
264 // this is where we end up when saving as plain SVG (also in other circumstances?);
265 // hence we don't set the sodipodi:type attribute
266 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_OBJECT_DOCUMENT(object));
267 repr = xml_doc->createElement("inkscape:perspective");
268 }
270 if (flags & SP_OBJECT_WRITE_EXT) {
271 gchar *str = NULL; // FIXME: Should this be freed each time we set an attribute or only in the end or at all?
272 str = persp3d_pt_to_str (persp, Proj::X);
273 repr->setAttribute("inkscape:vp_x", str);
275 str = persp3d_pt_to_str (persp, Proj::Y);
276 repr->setAttribute("inkscape:vp_y", str);
278 str = persp3d_pt_to_str (persp, Proj::Z);
279 repr->setAttribute("inkscape:vp_z", str);
281 str = persp3d_pt_to_str (persp, Proj::W);
282 repr->setAttribute("inkscape:persp3d-origin", str);
283 }
285 if (((SPObjectClass *) persp3d_parent_class)->write)
286 (* ((SPObjectClass *) persp3d_parent_class)->write)(object, repr, flags);
288 return repr;
289 }
291 /* convenience wrapper around persp3d_get_finite_dir() and persp3d_get_infinite_dir() */
292 NR::Point persp3d_get_PL_dir_from_pt (Persp3D *persp, NR::Point const &pt, Proj::Axis axis) {
293 if (persp3d_VP_is_finite(persp, axis)) {
294 return persp3d_get_finite_dir(persp, pt, axis);
295 } else {
296 return persp3d_get_infinite_dir(persp, axis);
297 }
298 }
300 NR::Point
301 persp3d_get_finite_dir (Persp3D *persp, NR::Point const &pt, Proj::Axis axis) {
302 Box3D::PerspectiveLine pl(pt, axis, persp);
303 return pl.direction();
304 }
306 NR::Point
307 persp3d_get_infinite_dir (Persp3D *persp, Proj::Axis axis) {
308 Proj::Pt2 vp(persp3d_get_VP(persp, axis));
309 if (vp[2] != 0.0) {
310 g_print ("VP should be infinite but is (%f : %f : %f)\n", vp[0], vp[1], vp[2]);
311 g_return_val_if_fail(vp[2] != 0.0, NR::Point(0.0, 0.0));
312 }
313 return NR::Point(vp[0], vp[1]);
314 }
316 double
317 persp3d_get_infinite_angle (Persp3D *persp, Proj::Axis axis) {
318 return persp->tmat.get_infinite_angle(axis);
319 }
321 bool
322 persp3d_VP_is_finite (Persp3D *persp, Proj::Axis axis) {
323 return persp->tmat.has_finite_image(axis);
324 }
326 void
327 persp3d_toggle_VP (Persp3D *persp, Proj::Axis axis, bool set_undo) {
328 persp->tmat.toggle_finite(axis);
329 // FIXME: Remove this repr update and rely on vp_drag_sel_modified() to do this for us
330 // On the other hand, vp_drag_sel_modified() would update all boxes;
331 // here we can confine ourselves to the boxes of this particular perspective.
332 persp3d_update_box_reprs (persp);
333 //persp3d_update_z_orders (persp);
334 SP_OBJECT(persp)->updateRepr(SP_OBJECT_WRITE_EXT);
335 if (set_undo) {
336 sp_document_done(sp_desktop_document(inkscape_active_desktop()), SP_VERB_CONTEXT_3DBOX,
337 _("Toggle vanishing point"));
338 }
339 }
341 /* toggle VPs for the same axis in all perspectives of a given list */
342 void
343 persp3d_toggle_VPs (std::set<Persp3D *> p, Proj::Axis axis) {
344 for (std::set<Persp3D *>::iterator i = p.begin(); i != p.end(); ++i) {
345 persp3d_toggle_VP((*i), axis, false);
346 }
347 sp_document_done(sp_desktop_document(inkscape_active_desktop()), SP_VERB_CONTEXT_3DBOX,
348 _("Toggle multiple vanishing points"));
349 }
351 void
352 persp3d_set_VP_state (Persp3D *persp, Proj::Axis axis, Proj::VPState state) {
353 if (persp3d_VP_is_finite(persp, axis) != (state == Proj::VP_FINITE)) {
354 persp3d_toggle_VP(persp, axis);
355 }
356 }
358 void
359 persp3d_rotate_VP (Persp3D *persp, Proj::Axis axis, double angle, bool alt_pressed) { // angle is in degrees
360 // FIXME: Most of this functionality should be moved to trans_mat_3x4.(h|cpp)
361 if (persp->tmat.has_finite_image(axis)) {
362 // don't rotate anything for finite VPs
363 return;
364 }
365 Proj::Pt2 v_dir_proj (persp->tmat.column(axis));
366 NR::Point v_dir (v_dir_proj[0], v_dir_proj[1]);
367 double a = NR::atan2 (v_dir) * 180/M_PI;
368 a += alt_pressed ? 0.5 * ((angle > 0 ) - (angle < 0)) : angle; // the r.h.s. yields +/-0.5 or angle
369 persp->tmat.set_infinite_direction (axis, a);
371 persp3d_update_box_reprs (persp);
372 //persp3d_update_z_orders (persp);
373 SP_OBJECT(persp)->updateRepr(SP_OBJECT_WRITE_EXT);
374 }
376 void
377 persp3d_update_with_point (Persp3D *persp, Proj::Axis const axis, Proj::Pt2 const &new_image) {
378 persp->tmat.set_image_pt (axis, new_image);
379 }
381 void
382 persp3d_apply_affine_transformation (Persp3D *persp, NR::Matrix const &xform) {
383 persp->tmat *= xform;
384 persp3d_update_box_reprs(persp);
385 SP_OBJECT(persp)->updateRepr(SP_OBJECT_WRITE_EXT);
386 }
388 gchar *
389 persp3d_pt_to_str (Persp3D *persp, Proj::Axis const axis)
390 {
391 return persp->tmat.pt_to_str(axis);
392 }
394 void
395 persp3d_add_box (Persp3D *persp, SPBox3D *box) {
396 if (!box) {
397 //g_warning ("Trying to add NULL box to perspective.\n");
398 return;
399 }
400 if (std::find (persp->boxes.begin(), persp->boxes.end(), box) != persp->boxes.end()) {
401 //g_warning ("Attempting to add already existent box to perspective.\n");
402 return;
403 }
404 persp->boxes.push_back(box);
405 //SP_OBJECT_REPR(box)->setAttribute("inkscape:perspectiveID", SP_OBJECT_REPR(persp)->attribute("id"));
406 }
408 void
409 persp3d_remove_box (Persp3D *persp, SPBox3D *box) {
410 std::vector<SPBox3D *>::iterator i = std::find (persp->boxes.begin(), persp->boxes.end(), box);
411 if (i != persp->boxes.end()) {
412 persp->boxes.erase(i);
413 }
414 }
416 bool
417 persp3d_has_box (Persp3D *persp, SPBox3D *box) {
418 // FIXME: For some reason, std::find() does not seem to compare pointers "correctly" (or do we need to
419 // provide a proper comparison function?), so we manually traverse the list.
420 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
421 if ((*i) == box) {
422 return true;
423 }
424 }
425 return false;
426 }
428 void
429 persp3d_add_box_transform (Persp3D *persp, SPBox3D *box) {
430 std::map<SPBox3D *, bool>::iterator i = persp->boxes_transformed.find(box);
431 if (i != persp->boxes_transformed.end() && (*i).second == true) {
432 g_print ("Warning! In %s (%d): trying to add transform status for box %d twice when it's already listed as true.\n", SP_OBJECT_REPR(persp)->attribute("id"), persp->my_counter, box->my_counter);
433 return;
434 }
436 persp->boxes_transformed[box] = false;
437 }
439 void
440 persp3d_remove_box_transform (Persp3D *persp, SPBox3D *box) {
441 persp->boxes_transformed.erase(box);
442 }
444 void
445 persp3d_set_box_transformed (Persp3D *persp, SPBox3D *box, bool transformed) {
446 if (persp->boxes_transformed.find(box) == persp->boxes_transformed.end()) {
447 g_print ("Warning! In %s (%d): trying to set transform status for box %d, but it is not listed in the perspective!! Aborting.\n",
448 SP_OBJECT_REPR(persp)->attribute("id"), persp->my_counter,
449 box->my_counter);
450 return;
451 }
453 persp->boxes_transformed[box] = transformed;
454 }
456 bool
457 persp3d_was_transformed (Persp3D *persp) {
458 if (persp->boxes_transformed.size() == 1) {
459 /* either the transform has not been applied to the single box associated to this perspective yet
460 or the transform was already reset; in both cases we need to return false because upcoming
461 transforms need to be applied */
462 (*persp->boxes_transformed.begin()).second = false; // make sure the box is marked as untransformed (in case more boxes are added later)
463 return false;
464 }
466 for (std::map<SPBox3D *, bool>::iterator i = persp->boxes_transformed.begin();
467 i != persp->boxes_transformed.end(); ++i) {
468 if ((*i).second == true) {
469 // at least one of the boxes in the perspective has already been transformed;
470 return true;
471 }
472 }
473 return false; // all boxes in the perspective are still untransformed; a pending transformation should be applied
474 }
476 bool
477 persp3d_all_transformed(Persp3D *persp) {
478 for (std::map<SPBox3D *, bool>::iterator i = persp->boxes_transformed.begin();
479 i != persp->boxes_transformed.end(); ++i) {
480 if ((*i).second == false) {
481 return false;
482 }
483 }
484 return true;
485 }
487 void
488 persp3d_unset_transforms(Persp3D *persp) {
489 for (std::map<SPBox3D *, bool>::iterator i = persp->boxes_transformed.begin();
490 i != persp->boxes_transformed.end(); ++i) {
491 (*i).second = false;
492 }
493 }
495 void
496 persp3d_update_box_displays (Persp3D *persp) {
497 if (persp->boxes.empty())
498 return;
499 //g_print ("Requesting display update for %d boxes in the perspective.\n", persp->boxes.size());
500 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
501 box3d_position_set(*i);
502 }
503 }
505 void
506 persp3d_update_box_reprs (Persp3D *persp) {
507 if (persp->boxes.empty())
508 return;
509 //g_print ("Requesting repr update for %d boxes in the perspective.\n", persp->boxes.size());
510 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
511 SP_OBJECT(*i)->updateRepr(SP_OBJECT_WRITE_EXT);
512 box3d_set_z_orders(*i);
513 }
514 }
516 void
517 persp3d_update_z_orders (Persp3D *persp) {
518 if (persp->boxes.empty())
519 return;
520 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
521 box3d_set_z_orders(*i);
522 }
523 }
525 // FIXME: For some reason we seem to require a vector instead of a list in Persp3D, but in vp_knot_moved_handler()
526 // we need a list of boxes. If we can store a list in Persp3D right from the start, this function becomes
527 // obsolete. We should do this.
528 std::list<SPBox3D *>
529 persp3d_list_of_boxes(Persp3D *persp) {
530 std::list<SPBox3D *> bx_lst;
531 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
532 bx_lst.push_back(*i);
533 }
534 return bx_lst;
535 }
537 bool
538 persp3d_perspectives_coincide(const Persp3D *lhs, const Persp3D *rhs)
539 {
540 return lhs->tmat == rhs->tmat;
541 }
543 void
544 persp3d_absorb(Persp3D *persp1, Persp3D *persp2) {
545 /* double check if we are called in sane situations */
546 g_return_if_fail (persp3d_perspectives_coincide(persp1, persp2) && persp1 != persp2);
548 std::vector<SPBox3D *>::iterator boxes;
550 // Note: We first need to copy the boxes of persp2 into a separate list;
551 // otherwise the loop below gets confused when perspectives are reattached.
552 std::list<SPBox3D *> boxes_of_persp2 = persp3d_list_of_boxes(persp2);
554 for (std::list<SPBox3D *>::iterator i = boxes_of_persp2.begin(); i != boxes_of_persp2.end(); ++i) {
555 box3d_switch_perspectives((*i), persp2, persp1, true);
556 SP_OBJECT(*i)->updateRepr(SP_OBJECT_WRITE_EXT); // so that undo/redo can do its job properly
557 }
558 }
560 static void
561 persp3d_on_repr_attr_changed ( Inkscape::XML::Node * /*repr*/,
562 const gchar */*key*/,
563 const gchar */*oldval*/,
564 const gchar */*newval*/,
565 bool /*is_interactive*/,
566 void * data )
567 {
568 //g_print("persp3d_on_repr_attr_changed!!!! TODO: Do we need to trigger any further updates than the box reprs?");
570 if (!data)
571 return;
573 Persp3D *persp = (Persp3D*) data;
574 persp3d_update_box_displays (persp);
576 //lpeobj->requestModified(SP_OBJECT_MODIFIED_FLAG);
577 }
579 /* returns a std::set() of all perspectives of the currently selected boxes */
580 std::set<Persp3D *>
581 persp3d_currently_selected_persps (SPEventContext *ec) {
582 Inkscape::Selection *selection = sp_desktop_selection (ec->desktop);
584 std::set<Persp3D *> p;
585 for (GSList *i = (GSList *) selection->itemList(); i != NULL; i = i->next) {
586 if (SP_IS_BOX3D (i->data)) {
587 p.insert(box3d_get_perspective(SP_BOX3D(i->data)));
588 }
589 }
590 return p;
591 }
593 /* checks whether all boxes linked to this perspective are currently selected */
594 bool
595 persp3d_has_all_boxes_in_selection (Persp3D *persp) {
596 const GSList *selection = sp_desktop_selection (inkscape_active_desktop())->itemList();
598 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
599 if (g_slist_find((GSList *) selection, *i) == NULL) {
600 // we have an unselected box in the perspective
601 return false;
602 }
603 }
604 return true;
605 }
607 std::list<SPBox3D *>
608 persp3d_selected_boxes (Persp3D *persp) {
609 const GSList *selection = sp_desktop_selection (inkscape_active_desktop())->itemList();
610 std::list<SPBox3D *> sel;
612 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
613 if (g_slist_find((GSList *) selection, *i) != NULL) {
614 sel.push_back(SP_BOX3D(*i));
615 }
616 }
617 return sel;
618 }
620 void
621 persp3d_print_debugging_info (Persp3D *persp) {
622 g_print ("=== Info for Persp3D %d ===\n", persp->my_counter);
623 gchar * cstr;
624 for (int i = 0; i < 4; ++i) {
625 cstr = persp3d_get_VP(persp, Proj::axes[i]).coord_string();
626 g_print (" VP %s: %s\n", Proj::string_from_axis(Proj::axes[i]), cstr);
627 g_free(cstr);
628 }
629 cstr = persp3d_get_VP(persp, Proj::W).coord_string();
630 g_print (" Origin: %s\n", cstr);
631 g_free(cstr);
633 g_print (" Boxes: ");
634 for (std::vector<SPBox3D *>::iterator i = persp->boxes.begin(); i != persp->boxes.end(); ++i) {
635 g_print ("%d (%d) ", (*i)->my_counter, box3d_get_perspective(*i)->my_counter);
636 }
637 g_print ("\n");
638 g_print ("========================\n");
639 }
641 void
642 persp3d_print_debugging_info_all(SPDocument *document) {
643 SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS(document);
644 Inkscape::XML::Node *repr;
645 for (SPObject *child = sp_object_first_child(defs); child != NULL; child = SP_OBJECT_NEXT(child) ) {
646 repr = SP_OBJECT_REPR(child);
647 if (SP_IS_PERSP3D(child)) {
648 persp3d_print_debugging_info(SP_PERSP3D(child));
649 }
650 }
651 persp3d_print_all_selected();
652 }
654 void
655 persp3d_print_all_selected() {
656 /**
657 if (persp3d->boxes_transformed.empty()) {
658 g_print ("No selected perspectives in document\n");
659 return;
660 }
661 **/
662 g_print ("\n======================================\n");
663 g_print ("Selected perspectives and their boxes:\n");
665 std::set<Persp3D *> sel_persps = persp3d_currently_selected_persps (inkscape_active_event_context());
667 for (std::set<Persp3D *>::iterator j = sel_persps.begin(); j != sel_persps.end(); ++j) {
668 Persp3D *persp = SP_PERSP3D(*j);
669 g_print (" %s (%d): ", SP_OBJECT_REPR(persp)->attribute("id"), persp->my_counter);
670 for (std::map<SPBox3D *, bool>::iterator i = persp->boxes_transformed.begin();
671 i != persp->boxes_transformed.end(); ++i) {
672 g_print ("<%d,%d> ", (*i).first->my_counter, (*i).second);
673 }
674 g_print ("\n");
675 }
676 g_print ("======================================\n\n");
677 }
679 /*
680 Local Variables:
681 mode:c++
682 c-file-style:"stroustrup"
683 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
684 indent-tabs-mode:nil
685 fill-column:99
686 End:
687 */
688 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :