1 #include "alg/glseqbrowser.hpp"
2 #include "mussa_exceptions.hpp"
11 GlSeqBrowser::GlSeqBrowser()
13 cur_ortho(400.0, 0.0, 600.0, 0.0),
14 viewport_size(600, 400),
15 viewport_center((cur_ortho.right-cur_ortho.left)/2+cur_ortho.left),
22 GlSeqBrowser::GlSeqBrowser(const GlSeqBrowser& gt)
23 : border_width(gt.border_width),
24 cur_ortho(gt.cur_ortho),
25 viewport_size(gt.viewport_size),
26 viewport_center(gt.viewport_center),
27 zoom_level(gt.zoom_level),
28 color_mapper(gt.color_mapper),
29 track_container(gt.track_container)
33 void GlSeqBrowser::initializeGL()
35 glEnable(GL_DEPTH_TEST);
36 glClearColor(1.0, 1.0, 1.0, 0.0);
37 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
38 glShadeModel(GL_FLAT);
41 void GlSeqBrowser::resizeGL(int width, int height)
43 viewport_size.x = width;
44 viewport_size.y = height;
45 glViewport(0, 0, (GLsizei)width, (GLsizei)height);
46 update_viewport(viewport_center, zoom_level);
49 void GlSeqBrowser::paintGL() const
51 glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
54 glMatrixMode(GL_PROJECTION);
56 glOrtho(cur_ortho.left, cur_ortho.right,
57 cur_ortho.bottom, cur_ortho.top,
66 void GlSeqBrowser::processSelection(GLuint hits, GLuint buffer[], GLuint bufsize, const rect<float>& r)
70 GLuint consumed_names = 0;
75 GLuint path_index = 0;
76 GLuint pair_key_0 = 0;
77 GLuint pair_key_1 = 0;
80 selected_paths.clear();
81 selected_tracks.clear();
83 ptr = (GLuint *) buffer;
86 for (GLuint i=0; i < hits; ++i)
88 if ((i + 5) > bufsize) {
89 std::clog << "*** selection overflow***" << std::endl;
93 z1 = ((float)*ptr++)/0x7fffffff;
94 z2 = ((float)*ptr++)/0x7fffffff;
95 objtype = *ptr++; ++consumed_names;
98 path_index = *ptr++; ++consumed_names;
99 pair_key_0 = *ptr++; ++consumed_names;
100 pair_key_1 = *ptr++; ++consumed_names;
101 if (path_index < path_segments.size()) {
102 segment_key k(pair_key_0, pair_key_1);
103 pair_segment_map::iterator psm_i;
104 psm_i = path_segments[path_index].find(k);
105 if (psm_i != path_segments[path_index].end()) {
106 Segment &seg = psm_i->second;
107 selected_paths.insert(seg.path_ids.begin(), seg.path_ids.end());
109 // else something else is wrong
111 // something wasn't right
112 clog << "invalid path_index " << path_index
113 << " should have been [0,"<<path_segments.size()
119 objid = *ptr++; ++consumed_names;
121 int left = track_container[objid]->leftbase(r.left);
122 int right = track_container[objid]->rightbase(r.right);
123 // the static_cast should be ok, since basepairs line up on
125 //TrackRegion track(objid, left, right);
126 track.set(objid, left, right);
127 selected_tracks.push_back(track);
128 //clog << "selected track " << objid
129 // << "(" << left << ", " << right << ")" << endl;
133 cout << "unknown type " << objtype << " ";
134 for(; consumed_names < names; ++consumed_names) {
135 cout << consumed_names << "," << *ptr++ << " ";
144 void GlSeqBrowser::selectRegion(int top, int left, int bottom, int right)
146 GLfloat x_scale = cur_ortho.width()/((float)viewport_size.x);
147 GLfloat y_scale = cur_ortho.height()/((float)viewport_size.y);
148 GLfloat x_left = cur_ortho.left + (left*x_scale);
149 GLfloat x_right = cur_ortho.left + (right * x_scale);
152 // woah, someone gave us a rectangle with the origin in the lower left
157 // swap the orientation of canvas coordinates
158 GLfloat y_top = cur_ortho.top-(bottom*y_scale);
159 GLfloat y_bottom = cur_ortho.top - top * y_scale;
160 selectedRegion = rect<float>(y_top, x_left, y_bottom, x_right);
162 // hopefully this will make a buffer big enough to receive
163 // everything being selected
164 //const size_t pathz_count = mussaAnalysis->paths().refined_pathz.size();
165 //const GLuint select_buf_size = 1 + 5 * (pathz_count + sequences.size());
166 const GLuint select_buf_size = 500000;
167 GLuint selectBuf[select_buf_size];
168 glSelectBuffer(select_buf_size, selectBuf);
171 (void)glRenderMode(GL_SELECT);
173 glMatrixMode(GL_PROJECTION);
175 glOrtho(x_left, x_right, y_top, y_bottom, -50.0, 50.0);
176 glMatrixMode(GL_MODELVIEW);
183 hits = glRenderMode(GL_RENDER);
184 processSelection(hits, selectBuf, select_buf_size, selectedRegion);
187 float GlSeqBrowser::border() const
192 float GlSeqBrowser::left() const
195 if (track_container.size() == 0)
197 return cur_ortho.left;
199 vector<boost::shared_ptr<GlSequence> >::const_iterator track_i = track_container.begin();
200 left = (*track_i)->x();
201 for( ; track_i != track_container.end(); ++track_i)
203 if ((*track_i)->x() < left) {
204 left = (*track_i)->x();
207 return left-border_width;
211 float GlSeqBrowser::right() const
214 if (track_container.size() == 0) {
215 return cur_ortho.right;
217 vector<boost::shared_ptr<GlSequence> >::const_iterator track_i = track_container.begin();
218 right = (*track_i)->right();
219 for( ; track_i != track_container.end(); ++track_i) {
220 if ((*track_i)->right() > right)
221 right = (*track_i)->right();
223 return right+border_width;
227 float GlSeqBrowser::get_pixel_width() const
230 glGetIntegerv(GL_VIEWPORT, viewport);
231 GLint vp_width = viewport[3]; // grab the viewport width
233 return round((cur_ortho.right-cur_ortho.left)/vp_width);
236 void GlSeqBrowser::setViewportCenter(float x)
238 update_viewport(x, zoom_level);
242 float GlSeqBrowser::viewportLeft() const
244 return cur_ortho.left;
247 float GlSeqBrowser::viewportCenter() const
249 return viewport_center;
252 float GlSeqBrowser::viewportRight() const
254 return cur_ortho.right;
257 float GlSeqBrowser::viewportHeight() const
259 return cur_ortho.top - cur_ortho.bottom;
262 float GlSeqBrowser::viewportWidth() const
264 return cur_ortho.right - cur_ortho.left;
267 double GlSeqBrowser::zoomOut()
270 if (right() - left() > 0) {
271 cur_ortho.left = left();
272 cur_ortho.right = right();
273 zoom_level = (right() - left()) / (double)viewport_size.x;
276 // made up number representing 50 bp / pixel
281 double GlSeqBrowser::zoomToSequence()
283 // (experimentally determined zoom level)
284 const double friendly_zoom = 0.10;
285 setZoom(friendly_zoom);
286 return friendly_zoom;
289 void GlSeqBrowser::setZoom(double new_zoom)
291 update_viewport(viewport_center, new_zoom);
292 zoom_level = new_zoom;
295 double GlSeqBrowser::zoom() const
300 void GlSeqBrowser::setColorMapper(boost::shared_ptr<AnnotationColors> cm)
305 const AnnotationColors& GlSeqBrowser::colorMapper()
307 return *color_mapper;
310 void GlSeqBrowser::clear()
314 path_segments.clear();
315 track_container.clear();
318 void GlSeqBrowser::clear_selection()
320 selectedMode = false;
321 selectedRegion.clear();
322 selected_paths.clear();
323 selected_tracks.clear();
326 void GlSeqBrowser::push_sequence(const Sequence& s)
328 boost::shared_ptr<Sequence> seq_copy(new Sequence(s));
329 GlSequence gs(seq_copy, color_mapper);
334 void GlSeqBrowser::push_sequence(boost::shared_ptr<Sequence> s)
336 boost::shared_ptr<GlSequence> gs(new GlSequence(s, color_mapper));
340 void GlSeqBrowser::push_sequence(GlSequence gs)
342 boost::shared_ptr<GlSequence> new_gs(new GlSequence(gs));
343 push_sequence(new_gs);
346 void GlSeqBrowser::push_sequence(boost::shared_ptr<GlSequence> gs)
349 track_container.push_back(gs);
351 if (track_container.size() > 1)
352 path_segments.push_back(pair_segment_map());
355 const std::vector<boost::shared_ptr<GlSequence> >& GlSeqBrowser::sequences() const
357 return track_container;
360 void GlSeqBrowser::clear_links()
362 path_segments.clear();
363 for (int i = track_container.size()-1; i > 0; --i)
365 path_segments.push_back(pair_segment_map());
371 GlSeqBrowser::link(const vector<int>& path, const vector<bool>& rc, int length)
373 if (path.size() < 2) {
374 // should i throw an error instead?
377 if (path.size() != track_container.size() ) {
379 msg << "Path size [" << path.size() << "] and track size ["
380 << track_container.size() << "] don't match" << endl;
381 throw mussa_error(msg.str());
383 if (path.size() != rc.size()) {
384 throw runtime_error("path and reverse compliment must be the same length");
386 vector<int>::const_iterator path_i = path.begin();
387 vector<bool>::const_iterator rc_i = rc.begin();
389 int prev_x = *path_i; ++path_i;
390 bool prev_rc = *rc_i; ++rc_i;
391 while (path_i != path.end() and rc_i != rc.end())
393 segment_key p(prev_x, *path_i);
394 pair_segment_map::iterator found_segment = path_segments[track_i].find(p);
395 if (found_segment == path_segments[track_i].end()) {
397 float y1 = track_container[track_i]->y();
398 y1 -= track_container[track_i]->height()/2;
399 float y2 = track_container[track_i+1]->y();
400 y2 += track_container[track_i+1]->height()/2;
402 bool rcFlag = (prev_rc or *rc_i) and !(prev_rc and *rc_i);
403 Segment s(prev_x, y1, *path_i, y2, rcFlag, length);
404 s.path_ids.insert(pathid);
405 path_segments[track_i][p] = s;
408 found_segment->second.path_ids.insert(pathid);
409 // make each segment the size of the largest of any link between these
411 if (found_segment->second.length < length) {
412 found_segment->second.length = length;
421 // pathid is reset by push_sequence
425 void GlSeqBrowser::setSelectedPaths(std::vector<int> paths)
427 selected_paths.clear();
428 for(std::vector<int>::iterator itor = paths.begin();
432 selected_paths.insert(*itor);
436 const set<int>& GlSeqBrowser::selectedPaths() const
438 return selected_paths;
441 void GlSeqBrowser::appendSelectedTrack(GLuint track, int start, int stop)
443 selected_tracks.push_back(TrackRegion(track, start, stop));
446 list<TrackRegion> GlSeqBrowser::selectedTracks() const
448 return selected_tracks;
451 //! copy sequence from selected track using formating function
453 void GlSeqBrowser::copySelectedTracks(std::list<Item>& result,
454 Item (*formatter)(boost::shared_ptr<Sequence> s,
460 for(selected_track_iterator track_i = selected_tracks.begin();
461 track_i != selected_tracks.end();
464 int track_index = track_i->track_id;
465 if (track_index >= track_container.size()) {
466 // should this be an exception instead?
467 clog << "track " << track_index << " > " << track_container.size()
471 boost::shared_ptr<Sequence> seq = track_container[track_index]->sequence();
472 result.push_back(formatter(seq, track_i->left, track_i->right));
477 //! copy sequence from selected tracks as FASTA sequences
478 void GlSeqBrowser::copySelectedTracksAsFasta(std::string& copy_buffer)
480 std::list<std::string> result;
482 static string formatter(boost::shared_ptr<Sequence> seq,
487 s << ">" << seq->get_fasta_header()
488 << "|" << "subregion=" << left << "-" << right+1
490 << seq->subseq(left, right-left+1) << std::endl;
494 copySelectedTracks(result, AsFasta::formatter);
495 // I wish there was some way to use for_each and bind here
496 for (list<string>::iterator result_i = result.begin();
497 result_i != result.end();
500 copy_buffer.append(*result_i);
504 //! copy sequence from selected tracks as new sequences
505 void GlSeqBrowser::copySelectedTracksAsSequences(std::list<Sequence>& result)
508 static Sequence formatter(boost::shared_ptr<Sequence> seq,
512 return seq->subseq(left, right-left+1);
515 copySelectedTracks(result, AsSequence::formatter);
518 void GlSeqBrowser::copySelectedTracksAsSeqLocation(
519 std::list<SequenceLocation>& result)
521 struct AsSeqLocation {
522 static SequenceLocation formatter(boost::shared_ptr<Sequence> seq,
526 return SequenceLocation(seq, left, right);
529 copySelectedTracks(result, AsSeqLocation::formatter);
532 //! copy sequence from selected tracks as plain sequences
533 void GlSeqBrowser::copySelectedTracksAsString(std::string& copy_buffer)
535 std::list<string> result;
537 static string formatter(boost::shared_ptr<Sequence> seq,
542 s << seq->subseq(left, right-left+1) << std::endl;
547 copySelectedTracks(result, AsString::formatter);
548 // I wish there was some way to use for_each and bind here
549 for (list<string>::iterator result_i = result.begin();
550 result_i != result.end();
553 copy_buffer.append(*result_i);
558 void GlSeqBrowser::centerOnPath(const vector<int>& paths)
560 if (paths.size() != track_container.size()) {
561 throw mussa_error("Path length didn't match the number of sequences");
564 for(size_t track_i = 0; track_i != track_container.size(); ++track_i)
566 // -15 = shift more to the left
567 track_container[track_i]->setX((viewport_center-15) - paths[track_i]);
571 void GlSeqBrowser::update_viewport(float center, double new_zoom)
573 // limit how close we can get
574 if (new_zoom < 0.01) {
577 double new_width = (new_zoom * (float)viewport_size.x);
578 cur_ortho.left = center-new_width/2.0;
579 cur_ortho.right = center+new_width/2.0;
582 void GlSeqBrowser::update_layout()
584 typedef std::vector<boost::shared_ptr<GlSequence> >::iterator glseq_itor_type;
585 float available_height = (float)cur_ortho.top - 2 * (float)border_width;
586 float max_base_pairs = 0;
587 size_t track_count = track_container.size();
589 if (track_count > 1) {
590 // we have several sequences
591 float track_spacing = available_height / (track_count-1);
592 float y = available_height + (float)border_width;
593 for(glseq_itor_type seq_i = track_container.begin();
594 seq_i != track_container.end();
595 ++seq_i, y-=track_spacing)
599 if ((*seq_i)->size() > max_base_pairs)
600 max_base_pairs = (*seq_i)->size();
602 } else if (track_count == 1) {
603 // center the single track
604 glseq_itor_type seq_i = track_container.begin();
606 (*seq_i)->setY(viewport_size.x /2);
607 max_base_pairs = (*seq_i)->size();
609 // nothing to do as we're empty
612 cur_ortho.right = max_base_pairs + border_width;
613 cur_ortho.left = -border_width;
614 cur_ortho.top = viewport_size.x;
615 cur_ortho.bottom = 0;
616 viewport_center = (cur_ortho.width()/2) + cur_ortho.left;
620 void GlSeqBrowser::draw() const
622 glMatrixMode(GL_MODELVIEW);
624 glPushName(MussaSegment);
626 glLoadName(MussaTrack);
629 // a selection shouldn't have a glName associated with it
633 void GlSeqBrowser::draw_selection() const
635 // draw selection box
637 glDepthMask(GL_FALSE);
639 glColor4f(0.6, 0.6, 0.6, 0.9);
640 glRectf(selectedRegion.left, selectedRegion.top,
641 selectedRegion.right, selectedRegion.bottom);
643 glDepthMask(GL_TRUE);
647 void GlSeqBrowser::draw_tracks() const
649 for(size_t track_i = 0; track_i != track_container.size(); ++track_i)
652 track_container[track_i]->draw(cur_ortho.left, cur_ortho.right);
657 void GlSeqBrowser::draw_segments() const
661 glDepthMask(GL_FALSE);
662 const float zdepth = -1.0;
663 const float min_segment_width = max((float)(1.0), get_pixel_width());
665 // each vector contains path_segment_maps of all the connections
666 // between this track and the next
667 path_segment_map_vector::const_iterator psmv_i;
668 for(psmv_i = path_segments.begin();
669 psmv_i != path_segments.end();
672 path_segment_map_vector::difference_type path_index;
673 path_index = psmv_i - path_segments.begin();
674 // these maps contain the pair index (used so we dont keep drawing the
675 // same segment) and the actual segment structure.
676 pair_segment_map::const_iterator psm_i;
677 for(psm_i = psmv_i->begin();
678 psm_i != psmv_i->end();
681 // grab the index into our segment map
682 const segment_key& key = psm_i->first;
683 // the second element of our map pair is a segment
684 const Segment &s = psm_i->second;
685 // need to do something so we can detect our selection
686 vector<int> selected;
687 set_intersection(selected_paths.begin(), selected_paths.end(),
688 s.path_ids.begin(), s.path_ids.end(),
689 back_inserter(selected));
691 if (not s.reversed) {
692 if (selected_paths.size() == 0 or selected.size() > 0) {
693 glColor4f(1.0, 0.0, 0.0, 1.0);
695 glColor4f(1.0, 0.7, 0.7, 0.4);
698 if (selected_paths.size() == 0 or selected.size() > 0) {
699 glColor4f(0.0, 0.0, 1.0, 1.0);
701 glColor4f(0.7, 0.7, 1.0, 0.4);
704 // save the multipart name for our segment
705 glPushName(path_index); glPushName(key.first); glPushName(key.second);
706 float seq_start_x = s.start.x
707 + track_container[path_index]->x();
708 float seq_end_x = s.end.x
709 + track_container[path_index+1]->x();
710 if (s.length <= min_segment_width) {
711 // use lines for elements of length <=1 or < 1 pixel.
712 // and try to center the line
713 const float offset = s.length * 0.5;
715 glVertex3f(seq_start_x+offset, s.start.y, -1);
716 glVertex3f(seq_end_x +offset, s.end.y, -1);
719 // otherwise use quads
721 float seq_start_x_length = s.start.x
723 + track_container[path_index]->x();
724 float seq_end_x_length = s.end.x
726 + track_container[path_index+1]->x();
728 glVertex3f(seq_start_x, s.start.y, zdepth);
729 glVertex3f(seq_end_x, s.end.y, zdepth);
730 glVertex3f(seq_end_x_length, s.end.y, zdepth);
731 glVertex3f(seq_start_x_length, s.start.y, zdepth);
735 glPopName(); glPopName(); glPopName();
738 glDepthMask(GL_TRUE);