2 Copyright (C) 2001-2007 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <gtkmm2ext/gtk_ui.h>
26 #include "canvas/line_set.h"
27 #include "canvas/rectangle.h"
29 #include "ardour/midi_region.h"
30 #include "ardour/midi_source.h"
31 #include "ardour/midi_track.h"
32 #include "ardour/operations.h"
33 #include "ardour/region_factory.h"
34 #include "ardour/session.h"
35 #include "ardour/smf_source.h"
37 #include "ardour_ui.h"
38 #include "global_signals.h"
39 #include "gui_thread.h"
40 #include "midi_region_view.h"
41 #include "midi_streamview.h"
42 #include "midi_time_axis.h"
43 #include "midi_util.h"
44 #include "public_editor.h"
45 #include "region_selection.h"
46 #include "region_view.h"
47 #include "rgb_macros.h"
48 #include "selection.h"
54 using namespace ARDOUR;
56 using namespace Editing;
58 MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
60 , note_range_adjustment(0.0f, 0.0f, 0.0f)
62 , _range_sum_cache(-1.0)
68 , _updates_suspended (false)
70 /* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
71 midi_underlay_group = new ArdourCanvas::Group (_canvas_group);
72 midi_underlay_group->lower_to_bottom();
74 /* put the note lines in the timeaxisview's group, so it
75 can be put below ghost regions from MIDI underlays
77 _note_lines = new ArdourCanvas::LineSet (_canvas_group);
79 _note_lines->Event.connect(
80 sigc::bind(sigc::mem_fun(_trackview.editor(),
81 &PublicEditor::canvas_stream_view_event),
82 _note_lines, &_trackview));
84 _note_lines->lower_to_bottom();
88 ColorsChanged.connect(sigc::mem_fun(*this, &MidiStreamView::color_handler));
90 note_range_adjustment.set_page_size(_highest_note - _lowest_note);
91 note_range_adjustment.set_value(_lowest_note);
93 note_range_adjustment.signal_value_changed().connect(
94 sigc::mem_fun(*this, &MidiStreamView::note_range_adjustment_changed));
97 MidiStreamView::~MidiStreamView ()
102 MidiStreamView::create_region_view (boost::shared_ptr<Region> r, bool /*wfd*/, bool)
104 boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
110 RegionView* region_view = new MidiRegionView (_canvas_group, _trackview, region,
111 _samples_per_pixel, region_color);
113 region_view->init (region_color, false);
119 MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_data, bool recording)
121 boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
127 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
128 if ((*i)->region() == r) {
130 /* great. we already have a MidiRegionView for this Region. use it again. */
132 (*i)->set_valid (true);
134 display_region(dynamic_cast<MidiRegionView*>(*i), wait_for_data);
140 MidiRegionView* region_view = dynamic_cast<MidiRegionView*> (create_region_view (r, wait_for_data, recording));
141 if (region_view == 0) {
145 region_views.push_front (region_view);
147 if (_trackview.editor().internal_editing()) {
148 region_view->hide_rect ();
150 region_view->show_rect ();
153 /* display events and find note range */
154 display_region (region_view, wait_for_data);
156 /* fit note range if we are importing */
157 if (_trackview.session()->operation_in_progress (Operations::insert_file)) {
158 set_note_range (ContentsRange);
161 /* catch regionview going away */
162 boost::weak_ptr<Region> wr (region); // make this explicit
163 region->DropReferences.connect (*this, invalidator (*this), boost::bind (&MidiStreamView::remove_region_view, this, wr), gui_context());
165 RegionViewAdded (region_view);
171 MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
177 region_view->enable_display (true);
179 boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
182 source->load_model();
185 _range_dirty = update_data_note_range(
186 source->model()->lowest_note(),
187 source->model()->highest_note());
189 // Display region contents
190 region_view->set_height (child_height());
191 region_view->display_model(source->model());
196 MidiStreamView::display_track (boost::shared_ptr<Track> tr)
198 StreamView::display_track (tr);
206 MidiStreamView::update_contents_metrics(boost::shared_ptr<Region> r)
208 boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(r);
210 mr->midi_source(0)->load_model();
211 _range_dirty = update_data_note_range(
212 mr->model()->lowest_note(),
213 mr->model()->highest_note());
218 MidiStreamView::update_data_note_range(uint8_t min, uint8_t max)
221 if (min < _data_note_min) {
222 _data_note_min = min;
225 if (max > _data_note_max) {
226 _data_note_max = max;
233 MidiStreamView::redisplay_track ()
235 if (!_trackview.is_midi_track()) {
239 list<RegionView*>::iterator i;
241 // Load models if necessary, and find note range of all our contents
242 _range_dirty = false;
243 _data_note_min = 127;
245 _trackview.track()->playlist()->foreach_region(
246 sigc::mem_fun (*this, &StreamView::update_contents_metrics));
248 // No notes, use default range
254 // Flag region views as invalid and disable drawing
255 for (i = region_views.begin(); i != region_views.end(); ++i) {
256 (*i)->set_valid(false);
257 (*i)->enable_display(false);
260 // Add and display region views, and flag them as valid
261 _trackview.track()->playlist()->foreach_region(
262 sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view)));
264 // Stack regions by layer, and remove invalid regions
267 // Update note range (not regions which are correct) and draw note lines
268 apply_note_range(_lowest_note, _highest_note, false);
273 MidiStreamView::update_contents_height ()
275 StreamView::update_contents_height();
276 _note_lines->set_height (child_height ());
278 apply_note_range (lowest_note(), highest_note(), true);
282 MidiStreamView::draw_note_lines()
284 if (!_note_lines || _updates_suspended) {
292 _note_lines->clear();
294 if (child_height() < 140 || note_height() < 3) {
295 /* track is too small for note lines, or there are too many */
299 /* do this is order of highest ... lowest since that matches the
300 * coordinate system in which y=0 is at the top
303 for (int i = highest_note(); i >= lowest_note(); --i) {
307 /* this is the line actually corresponding to the division
311 _note_lines->add (y, 1.0, ARDOUR_UI::config()->get_canvasvar_PianoRollBlackOutline());
313 /* now add a thicker line/bar which covers the entire vertical
314 * height of this note.
323 color = ARDOUR_UI::config()->get_canvasvar_PianoRollBlack();
326 color = ARDOUR_UI::config()->get_canvasvar_PianoRollWhite();
330 double h = y - prev_y;
331 double mid = y + (h/2.0);
334 _note_lines->add (mid, h, color);
342 MidiStreamView::set_note_range(VisibleNoteRange r)
344 if (r == FullRange) {
348 _lowest_note = _data_note_min;
349 _highest_note = _data_note_max;
352 apply_note_range(_lowest_note, _highest_note, true);
356 MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views)
358 _highest_note = highest;
359 _lowest_note = lowest;
361 int const max_note_height = 20; // This should probably be based on text size...
362 int const range = _highest_note - _lowest_note;
363 int const pixels_per_note = floor (child_height () / range);
365 /* do not grow note height beyond 10 pixels */
366 if (pixels_per_note > max_note_height) {
368 int const available_note_range = floor (child_height() / max_note_height);
369 int additional_notes = available_note_range - range;
371 /* distribute additional notes to higher and lower ranges, clamp at 0 and 127 */
372 for (int i = 0; i < additional_notes; i++){
374 if (i % 2 && _highest_note < 127){
380 else if (_lowest_note > 0){
389 note_range_adjustment.set_page_size(_highest_note - _lowest_note);
390 note_range_adjustment.set_value(_lowest_note);
394 if (to_region_views) {
395 apply_note_range_to_regions ();
402 MidiStreamView::apply_note_range_to_regions ()
404 if (!_updates_suspended) {
405 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
406 ((MidiRegionView*)(*i))->apply_note_range(_lowest_note, _highest_note);
412 MidiStreamView::update_note_range(uint8_t note_num)
414 _data_note_min = min(_data_note_min, note_num);
415 _data_note_max = max(_data_note_max, note_num);
419 MidiStreamView::setup_rec_box ()
421 // cerr << _trackview.name() << " streamview SRB\n";
423 if (_trackview.session()->transport_rolling()) {
426 _trackview.session()->record_status() == Session::Recording &&
427 _trackview.track()->record_enabled()) {
429 if (Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
431 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
433 MidiRegion::SourceList sources;
435 rec_data_ready_connections.drop_connections ();
437 sources.push_back (_trackview.midi_track()->write_source());
441 framepos_t start = 0;
442 if (rec_regions.size() > 0) {
443 start = rec_regions.back().first->start()
444 + _trackview.track()->get_captured_frames(rec_regions.size()-1);
447 if (!rec_regions.empty()) {
448 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rec_regions.back().second);
454 plist.add (ARDOUR::Properties::start, start);
455 plist.add (ARDOUR::Properties::length, 1);
456 /* Just above we're setting this nascent region's length to 1. I think this
457 is so that the RegionView gets created with a non-zero width, as apparently
458 creating a RegionView with a zero width causes it never to be displayed
459 (there is a warning in TimeAxisViewItem::init about this). However, we
460 must also set length_beats to something non-zero, otherwise the frame length
461 of 1 causes length_beats to be set to some small quantity << 1. Then
462 when the position is set up below, this length_beats is used to recompute
463 length using BeatsFramesConverter::to, which is slightly innacurate for small
464 beats values because it converts floating point beats to bars, beats and
465 integer ticks. The upshot of which being that length gets set back to 0,
466 meaning no region view is ever seen, meaning no MIDI notes during record (#3820).
468 plist.add (ARDOUR::Properties::length_beats, 1);
469 plist.add (ARDOUR::Properties::name, string());
470 plist.add (ARDOUR::Properties::layer, 0);
472 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
473 (RegionFactory::create (sources, plist, false)));
475 region->set_start (_trackview.track()->current_capture_start()
476 - _trackview.track()->get_capture_start_frame (0));
477 region->set_position (_trackview.track()->current_capture_start());
478 RegionView* rv = add_region_view_internal (region, false);
479 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rv);
483 /* rec region will be destroyed in setup_rec_box */
484 rec_regions.push_back (make_pair (region, rv));
486 /* we add the region later */
487 setup_new_rec_layer_time (region);
489 error << _("failed to create MIDI region") << endmsg;
493 /* start a new rec box */
495 boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
496 framepos_t const frame_pos = mt->current_capture_start ();
497 gdouble const xstart = _trackview.editor().sample_to_pixel (frame_pos);
498 gdouble const xend = xstart;
501 fill_color = ARDOUR_UI::config()->get_canvasvar_RecordingRect();
503 ArdourCanvas::Rectangle * rec_rect = new ArdourCanvas::Rectangle (_canvas_group);
504 rec_rect->set (ArdourCanvas::Rect (xstart, 1, xend, _trackview.current_height() - 1));
505 rec_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_RecordingRect());
506 rec_rect->set_fill_color (fill_color);
507 rec_rect->lower_to_bottom();
510 recbox.rectangle = rec_rect;
511 recbox.start = _trackview.session()->transport_frame();
514 rec_rects.push_back (recbox);
516 screen_update_connection.disconnect();
517 screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
518 sigc::mem_fun (*this, &MidiStreamView::update_rec_box));
522 } else if (rec_active &&
523 (_trackview.session()->record_status() != Session::Recording ||
524 !_trackview.track()->record_enabled())) {
525 screen_update_connection.disconnect();
527 rec_updating = false;
532 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
534 if (!rec_rects.empty() || !rec_regions.empty()) {
536 /* disconnect rapid update */
537 screen_update_connection.disconnect();
538 rec_data_ready_connections.drop_connections ();
540 rec_updating = false;
543 /* remove temp regions */
545 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
546 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
551 (*iter).first->drop_references ();
558 // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
560 /* transport stopped, clear boxes */
561 for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
562 RecBoxInfo &rect = (*iter);
563 delete rect.rectangle;
573 MidiStreamView::color_handler ()
577 if (_trackview.is_midi_track()) {
578 canvas_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_MidiTrackBase());
580 canvas_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_MidiBusBase());
585 MidiStreamView::note_range_adjustment_changed()
587 double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
588 int lowest = (int) floor(note_range_adjustment.get_value());
591 if (sum == _range_sum_cache) {
592 //cerr << "cached" << endl;
593 highest = (int) floor(sum);
595 //cerr << "recalc" << endl;
596 highest = lowest + (int) floor(note_range_adjustment.get_page_size());
597 _range_sum_cache = sum;
600 if (lowest == _lowest_note && highest == _highest_note) {
604 //cerr << "note range adjustment changed: " << lowest << " " << highest << endl;
605 //cerr << " val=" << v_zoom_adjustment.get_value() << " page=" << v_zoom_adjustment.get_page_size() << " sum=" << v_zoom_adjustment.get_value() + v_zoom_adjustment.get_page_size() << endl;
607 _lowest_note = lowest;
608 _highest_note = highest;
609 apply_note_range(lowest, highest, true);
613 MidiStreamView::update_rec_box ()
615 StreamView::update_rec_box ();
617 if (rec_regions.empty()) {
621 /* Update the region being recorded to reflect where we currently are */
622 boost::shared_ptr<ARDOUR::Region> region = rec_regions.back().first;
623 region->set_length (_trackview.track()->current_capture_end () - _trackview.track()->current_capture_start());
625 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rec_regions.back().second);
626 mrv->extend_active_notes ();
630 MidiStreamView::y_to_note (double y) const
632 int const n = ((contents_height() - y - 1) / contents_height() * (double)contents_note_range())
637 } else if (n > 127) {
644 /** Suspend updates to the regions' note ranges and our
645 * note lines until resume_updates() is called.
648 MidiStreamView::suspend_updates ()
650 _updates_suspended = true;
653 /** Resume updates to region note ranges and note lines,
654 * and update them now.
657 MidiStreamView::resume_updates ()
659 _updates_suspended = false;
662 apply_note_range_to_regions ();
664 _canvas_group->redraw ();
668 MidiStreamView::leave_internal_edit_mode ()
670 StreamView::leave_internal_edit_mode ();
671 for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
672 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
674 mrv->clear_selection ();