1 #include "alg/glseqbrowser.hpp"
2 #include "mussa_exceptions.hpp"
10 GlSeqBrowser::GlSeqBrowser()
12 cur_ortho(400.0, 0.0, 600.0, 0.0),
13 viewport_size(600, 400),
14 viewport_center((cur_ortho.right-cur_ortho.left)/2+cur_ortho.left),
21 GlSeqBrowser::GlSeqBrowser(const GlSeqBrowser& gt)
22 : border_width(gt.border_width),
23 cur_ortho(gt.cur_ortho),
24 viewport_size(gt.viewport_size),
25 viewport_center(gt.viewport_center),
26 zoom_level(gt.zoom_level),
27 color_mapper(gt.color_mapper),
28 track_container(gt.track_container)
32 void GlSeqBrowser::initializeGL()
34 glEnable(GL_DEPTH_TEST);
35 glClearColor(1.0, 1.0, 1.0, 0.0);
36 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
37 glShadeModel(GL_FLAT);
40 void GlSeqBrowser::resizeGL(int width, int height)
42 viewport_size.x = width;
43 viewport_size.y = height;
44 glViewport(0, 0, (GLsizei)width, (GLsizei)height);
45 update_viewport(viewport_center, zoom_level);
48 void GlSeqBrowser::paintGL() const
50 glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
53 glMatrixMode(GL_PROJECTION);
55 glOrtho(cur_ortho.left, cur_ortho.right,
56 cur_ortho.bottom, cur_ortho.top,
65 void GlSeqBrowser::processSelection(GLuint hits, GLuint buffer[], GLuint bufsize, const rect<float>& r)
69 GLuint consumed_names = 0;
74 GLuint path_index = 0;
75 GLuint pair_key_0 = 0;
76 GLuint pair_key_1 = 0;
79 selected_paths.clear();
80 selected_tracks.clear();
82 ptr = (GLuint *) buffer;
85 for (GLuint i=0; i < hits; ++i)
87 if ((i + 5) > bufsize) {
88 std::clog << "*** selection overflow***" << std::endl;
92 z1 = ((float)*ptr++)/0x7fffffff;
93 z2 = ((float)*ptr++)/0x7fffffff;
94 objtype = *ptr++; ++consumed_names;
97 path_index = *ptr++; ++consumed_names;
98 pair_key_0 = *ptr++; ++consumed_names;
99 pair_key_1 = *ptr++; ++consumed_names;
100 if (path_index < path_segments.size()) {
101 segment_key k(pair_key_0, pair_key_1);
102 pair_segment_map::iterator psm_i;
103 psm_i = path_segments[path_index].find(k);
104 if (psm_i != path_segments[path_index].end()) {
105 Segment &seg = psm_i->second;
106 selected_paths.insert(seg.path_ids.begin(), seg.path_ids.end());
108 // else something else is wrong
110 // something wasn't right
111 clog << "invalid path_index " << path_index
112 << " should have been [0,"<<path_segments.size()
117 objid = *ptr++; ++consumed_names;
119 int left = track_container[objid].leftbase(r.left);
120 int right = track_container[objid].rightbase(r.right);
121 // the static_cast should be ok, since basepairs line up on
123 //TrackRegion track(objid, left, right);
124 track.set(objid, left, right);
125 selected_tracks.push_back(track);
128 cout << "unknown type " << objtype << " ";
129 for(; consumed_names < names; ++consumed_names) {
130 cout << consumed_names << "," << *ptr++ << " ";
139 void GlSeqBrowser::selectRegion(int top, int left, int bottom, int right)
141 GLfloat x_scale = cur_ortho.width()/((float)viewport_size.x);
142 GLfloat y_scale = cur_ortho.height()/((float)viewport_size.y);
143 GLfloat x_left = cur_ortho.left + (left*x_scale);
144 GLfloat x_right = cur_ortho.left + (right * x_scale);
147 // woah, someone gave us a rectangle with the origin in the lower left
152 // swap the orientation of canvas coordinates
153 GLfloat y_top = cur_ortho.top-(bottom*y_scale);
154 GLfloat y_bottom = cur_ortho.top - top * y_scale;
155 selectedRegion = rect<float>(y_top, x_left, y_bottom, x_right);
157 // hopefully this will make a buffer big enough to receive
158 // everything being selected
159 //const size_t pathz_count = mussaAnalysis->paths().refined_pathz.size();
160 //const GLuint select_buf_size = 1 + 5 * (pathz_count + sequences.size());
161 const GLuint select_buf_size = 500000;
162 GLuint selectBuf[select_buf_size];
163 glSelectBuffer(select_buf_size, selectBuf);
166 (void)glRenderMode(GL_SELECT);
168 glMatrixMode(GL_PROJECTION);
170 glOrtho(x_left, x_right, y_top, y_bottom, -50.0, 50.0);
171 glMatrixMode(GL_MODELVIEW);
178 hits = glRenderMode(GL_RENDER);
179 processSelection(hits, selectBuf, select_buf_size, selectedRegion);
182 float GlSeqBrowser::border() const
187 float GlSeqBrowser::left() const
190 if (track_container.size() == 0)
192 return cur_ortho.left;
194 vector<GlSequence>::const_iterator track_i = track_container.begin();
196 for( ; track_i != track_container.end(); ++track_i)
198 if (track_i->x() < left) {
202 return left-border_width;
206 float GlSeqBrowser::right() const
209 if (track_container.size() == 0) {
210 return cur_ortho.right;
212 vector<GlSequence>::const_iterator track_i = track_container.begin();
213 right = track_i->right();
214 for( ; track_i != track_container.end(); ++track_i) {
215 if (track_i->right() > right)
216 right = track_i->right();
218 return right+border_width;
222 void GlSeqBrowser::setViewportCenter(float x)
224 update_viewport(x, zoom_level);
228 float GlSeqBrowser::viewportLeft() const
230 return cur_ortho.left;
233 float GlSeqBrowser::viewportCenter() const
235 return viewport_center;
238 float GlSeqBrowser::viewportRight() const
240 return cur_ortho.right;
243 float GlSeqBrowser::viewportHeight() const
245 return cur_ortho.top - cur_ortho.bottom;
248 float GlSeqBrowser::viewportWidth() const
250 return cur_ortho.right - cur_ortho.left;
253 double GlSeqBrowser::zoomOut()
256 if (right() - left() > 0) {
257 cur_ortho.left = left();
258 cur_ortho.right = right();
259 zoom_level = (right() - left()) / (double)viewport_size.x;
262 // made up number representing 50 bp / pixel
267 double GlSeqBrowser::zoomToSequence()
269 // (experimentally determined zoom level)
270 const double friendly_zoom = 0.10;
271 setZoom(friendly_zoom);
272 return friendly_zoom;
275 void GlSeqBrowser::setZoom(double new_zoom)
277 update_viewport(viewport_center, new_zoom);
278 zoom_level = new_zoom;
281 double GlSeqBrowser::zoom() const
286 void GlSeqBrowser::setColorMapper(AnnotationColors& cm)
291 AnnotationColors& GlSeqBrowser::colorMapper()
296 void GlSeqBrowser::clear()
299 path_segments.clear();
300 track_container.clear();
303 void GlSeqBrowser::push_sequence(const Sequence &s)
305 GlSequence gs(s, color_mapper);
309 void GlSeqBrowser::push_sequence(GlSequence &gs)
312 track_container.push_back(gs);
314 if (track_container.size() > 1)
315 path_segments.push_back(pair_segment_map());
318 const std::vector<GlSequence>& GlSeqBrowser::sequences() const
320 return track_container;
323 void GlSeqBrowser::clear_links()
325 path_segments.clear();
326 for (int i = track_container.size()-1; i > 0; --i)
328 path_segments.push_back(pair_segment_map());
334 GlSeqBrowser::link(const vector<int>& path, const vector<bool>& rc, int )
336 if (path.size() < 2) {
337 // should i throw an error instead?
340 if (path.size() != track_container.size() ) {
342 msg << "Path size [" << path.size() << "] and track size ["
343 << track_container.size() << "] don't match" << endl;
344 throw mussa_error(msg.str());
346 if (path.size() != rc.size()) {
347 throw runtime_error("path and reverse compliment must be the same length");
349 vector<int>::const_iterator path_i = path.begin();
350 vector<bool>::const_iterator rc_i = rc.begin();
352 int prev_x = *path_i; ++path_i;
353 bool prev_rc = *rc_i; ++rc_i;
354 while (path_i != path.end() and rc_i != rc.end())
356 segment_key p(prev_x, *path_i);
357 pair_segment_map::iterator found_segment = path_segments[track_i].find(p);
358 if (found_segment == path_segments[track_i].end()) {
360 float y1 = track_container[track_i].y();
361 y1 -= track_container[track_i].height()/2;
362 float y2 = track_container[track_i+1].y();
363 y2 += track_container[track_i+1].height()/2;
365 bool rcFlag = (prev_rc or *rc_i) and !(prev_rc and *rc_i);
366 Segment s(prev_x, y1, *path_i, y2, rcFlag);
367 s.path_ids.insert(pathid);
368 path_segments[track_i][p] = s;
371 found_segment->second.path_ids.insert(pathid);
379 // pathid is reset by push_sequence
383 const set<int>& GlSeqBrowser::selectedPaths() const
385 return selected_paths;
388 //! copy sequence from selected track using formating function
389 void GlSeqBrowser::copySelectedTracks(std::string& copy_buffer,
390 format_track formatter)
394 for(selected_track_iterator track_i = selected_tracks.begin();
395 track_i != selected_tracks.end();
398 int track_index = track_i->track_id;
399 if (track_index >= track_container.size()) {
400 // should this be an exception instead?
401 clog << "track " << track_index << " > " << track_container.size()
405 const Sequence& seq = track_container[track_index].sequence();
406 copy_buffer += formatter(seq, track_i->left, track_i->right);
411 //! copy sequence from selected tracks as plain sequences
412 void GlSeqBrowser::copySelectedTracksAsString(std::string& copy_buffer)
415 static string formatter(const Sequence& seq, int left, int right)
418 s << seq.subseq(left, right-left+1) << std::endl;
423 copySelectedTracks(copy_buffer, AsString::formatter);
426 //! copy sequence from selected tracks as FASTA sequences
427 void GlSeqBrowser::copySelectedTracksAsFasta(std::string& copy_buffer)
430 static string formatter(const Sequence& seq, int left, int right)
433 s << ">" << seq.get_header() << std::endl
434 << seq.subseq(left, right-left+1) << std::endl;
438 copySelectedTracks(copy_buffer, AsFasta::formatter);
441 void GlSeqBrowser::centerOnPath(const vector<int>& paths)
443 if (paths.size() != track_container.size()) {
444 throw mussa_error("Path length didn't match the number of sequences");
447 for(size_t track_i = 0; track_i != track_container.size(); ++track_i)
449 // -15 = shift more to the left
450 track_container[track_i].setX((viewport_center-15) - paths[track_i]);
454 void GlSeqBrowser::update_viewport(float center, double new_zoom)
456 // limit how close we can get
457 if (new_zoom < 0.01) {
460 double new_width = (new_zoom * (float)viewport_size.x);
461 cur_ortho.left = center-new_width/2.0;
462 cur_ortho.right = center+new_width/2.0;
465 void GlSeqBrowser::update_layout()
467 typedef std::vector<GlSequence>::iterator glseq_itor_type;
468 float available_height = (float)cur_ortho.top - 2 * (float)border_width;
469 float max_base_pairs = 0;
470 size_t track_count = track_container.size();
472 if (track_count > 1) {
473 // we have several sequences
474 float track_spacing = available_height / (track_count-1);
475 float y = available_height + (float)border_width;
476 for(glseq_itor_type seq_i = track_container.begin();
477 seq_i != track_container.end();
478 ++seq_i, y-=track_spacing)
482 if (seq_i->length() > max_base_pairs)
483 max_base_pairs = seq_i->length();
485 } else if (track_count == 1) {
486 // center the single track
487 glseq_itor_type seq_i = track_container.begin();
489 seq_i->setY(viewport_size.x /2);
490 max_base_pairs = seq_i->length();
492 // nothing to do as we're empty
495 cur_ortho.right = max_base_pairs + border_width;
496 cur_ortho.left = -border_width;
497 cur_ortho.top = viewport_size.x;
498 cur_ortho.bottom = 0;
499 viewport_center = (cur_ortho.width()/2) + cur_ortho.left;
503 void GlSeqBrowser::draw() const
505 glMatrixMode(GL_MODELVIEW);
507 glPushName(MussaSegment);
509 glLoadName(MussaTrack);
512 // a selection shouldn't have a glName associated with it
516 void GlSeqBrowser::draw_selection() const
518 // draw selection box
520 glDepthMask(GL_FALSE);
522 glColor4f(0.6, 0.6, 0.6, 0.9);
523 glRectf(selectedRegion.left, selectedRegion.top,
524 selectedRegion.right, selectedRegion.bottom);
526 glDepthMask(GL_TRUE);
530 void GlSeqBrowser::draw_tracks() const
532 for(size_t track_i = 0; track_i != track_container.size(); ++track_i)
535 track_container[track_i].draw(cur_ortho.left, cur_ortho.right);
540 void GlSeqBrowser::draw_segments() const
543 // each vector contains path_segment_maps of all the connections
544 // between this track and the next
545 path_segment_map_vector::const_iterator psmv_i;
546 for(psmv_i = path_segments.begin();
547 psmv_i != path_segments.end();
550 path_segment_map_vector::difference_type path_index;
551 path_index = psmv_i - path_segments.begin();
552 // these maps contain the pair index (used so we dont keep drawing the
553 // same segment) and the actual segment structure.
554 pair_segment_map::const_iterator psm_i;
555 for(psm_i = psmv_i->begin();
556 psm_i != psmv_i->end();
559 // grab the index into our segment map
560 const segment_key& key = psm_i->first;
561 // the second element of our map pair is a segment
562 const Segment &s = psm_i->second;
563 // need to do something so we can detect our selection
564 vector<int> selected;
565 set_intersection(selected_paths.begin(), selected_paths.end(),
566 s.path_ids.begin(), s.path_ids.end(),
567 back_inserter(selected));
569 if (not s.reversed) {
570 if (selected_paths.size() == 0 or selected.size() > 0) {
571 glColor3f(1.0, 0.0, 0.0);
573 glColor3f(1.0, 0.8, 0.8);
576 if (selected_paths.size() == 0 or selected.size() > 0) {
577 glColor3f(0.0, 0.0, 1.0);
579 glColor3f(0.8, 0.8, 1.0);
582 if (selected_paths.size() == 0 or selected.size() > 0) {
583 glColor3f(0.0, 0.0, 1.0);
585 glColor3f(0.8, 0.8, 1.0);
589 // save the multipart name for our segment
590 glPushName(path_index); glPushName(key.first); glPushName(key.second);
592 float seq_start_x = track_container[path_index].x();
593 float seq_end_x = track_container[path_index+1].x();
594 glVertex3f(s.start.x + seq_start_x, s.start.y, -1);
595 glVertex3f(s.end.x + seq_end_x , s.end.y, -1);
598 glPopName(); glPopName(); glPopName();