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;
55 using namespace ARDOUR_UI_UTILS;
57 using namespace Editing;
59 MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
61 , note_range_adjustment(0.0f, 0.0f, 0.0f)
63 , _range_sum_cache(-1.0)
69 , _updates_suspended (false)
71 /* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
72 midi_underlay_group = new ArdourCanvas::Container (_canvas_group);
73 midi_underlay_group->lower_to_bottom();
75 /* put the note lines in the timeaxisview's group, so it
76 can be put below ghost regions from MIDI underlays
78 _note_lines = new ArdourCanvas::LineSet (_canvas_group, ArdourCanvas::LineSet::Horizontal);
80 _note_lines->Event.connect(
81 sigc::bind(sigc::mem_fun(_trackview.editor(),
82 &PublicEditor::canvas_stream_view_event),
83 _note_lines, &_trackview));
85 _note_lines->lower_to_bottom();
89 ColorsChanged.connect(sigc::mem_fun(*this, &MidiStreamView::color_handler));
91 note_range_adjustment.set_page_size(_highest_note - _lowest_note);
92 note_range_adjustment.set_value(_lowest_note);
94 note_range_adjustment.signal_value_changed().connect(
95 sigc::mem_fun(*this, &MidiStreamView::note_range_adjustment_changed));
98 MidiStreamView::~MidiStreamView ()
103 MidiStreamView::create_region_view (boost::shared_ptr<Region> r, bool /*wfd*/, bool)
105 boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
111 RegionView* region_view = new MidiRegionView (_canvas_group, _trackview, region,
112 _samples_per_pixel, region_color);
114 region_view->init (false);
120 MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_data, bool recording)
122 boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
128 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
129 if ((*i)->region() == r) {
131 /* great. we already have a MidiRegionView for this Region. use it again. */
133 (*i)->set_valid (true);
135 display_region(dynamic_cast<MidiRegionView*>(*i), wait_for_data);
141 MidiRegionView* region_view = dynamic_cast<MidiRegionView*> (create_region_view (r, wait_for_data, recording));
142 if (region_view == 0) {
146 region_views.push_front (region_view);
148 if (_trackview.editor().internal_editing()) {
149 region_view->hide_rect ();
151 region_view->show_rect ();
154 /* display events and find note range */
155 display_region (region_view, wait_for_data);
157 /* fit note range if we are importing */
158 if (_trackview.session()->operation_in_progress (Operations::insert_file)) {
159 set_note_range (ContentsRange);
162 /* catch regionview going away */
163 boost::weak_ptr<Region> wr (region); // make this explicit
164 region->DropReferences.connect (*this, invalidator (*this), boost::bind (&MidiStreamView::remove_region_view, this, wr), gui_context());
166 RegionViewAdded (region_view);
172 MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
178 region_view->enable_display (true);
180 boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
183 source->load_model();
186 _range_dirty = update_data_note_range(
187 source->model()->lowest_note(),
188 source->model()->highest_note());
190 // Display region contents
191 region_view->set_height (child_height());
192 region_view->display_model(source->model());
197 MidiStreamView::display_track (boost::shared_ptr<Track> tr)
199 StreamView::display_track (tr);
207 MidiStreamView::update_contents_metrics(boost::shared_ptr<Region> r)
209 boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(r);
211 mr->midi_source(0)->load_model();
212 _range_dirty = update_data_note_range(
213 mr->model()->lowest_note(),
214 mr->model()->highest_note());
219 MidiStreamView::update_data_note_range(uint8_t min, uint8_t max)
222 if (min < _data_note_min) {
223 _data_note_min = min;
226 if (max > _data_note_max) {
227 _data_note_max = max;
234 MidiStreamView::redisplay_track ()
236 if (!_trackview.is_midi_track()) {
240 list<RegionView*>::iterator i;
242 // Load models if necessary, and find note range of all our contents
243 _range_dirty = false;
244 _data_note_min = 127;
246 _trackview.track()->playlist()->foreach_region(
247 sigc::mem_fun (*this, &StreamView::update_contents_metrics));
249 // No notes, use default range
255 // Flag region views as invalid and disable drawing
256 for (i = region_views.begin(); i != region_views.end(); ++i) {
257 (*i)->set_valid(false);
258 (*i)->enable_display(false);
261 // Add and display region views, and flag them as valid
262 _trackview.track()->playlist()->foreach_region(
263 sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view)));
265 // Stack regions by layer, and remove invalid regions
268 // Update note range (not regions which are correct) and draw note lines
269 apply_note_range(_lowest_note, _highest_note, false);
274 MidiStreamView::update_contents_height ()
276 StreamView::update_contents_height();
278 _note_lines->set_extent (ArdourCanvas::COORD_MAX);
280 apply_note_range (lowest_note(), highest_note(), true);
284 MidiStreamView::draw_note_lines()
286 if (!_note_lines || _updates_suspended) {
294 _note_lines->clear();
296 if (child_height() < 140 || note_height() < 3) {
297 /* track is too small for note lines, or there are too many */
301 /* do this is order of highest ... lowest since that matches the
302 * coordinate system in which y=0 is at the top
305 for (int i = highest_note(); i >= lowest_note(); --i) {
309 /* this is the line actually corresponding to the division
313 _note_lines->add (y, 1.0, ARDOUR_UI::config()->get_canvasvar_PianoRollBlackOutline());
315 /* now add a thicker line/bar which covers the entire vertical
316 * height of this note.
325 color = ARDOUR_UI::config()->get_canvasvar_PianoRollBlack();
328 color = ARDOUR_UI::config()->get_canvasvar_PianoRollWhite();
332 double h = y - prev_y;
333 double mid = y + (h/2.0);
336 _note_lines->add (mid, h, color);
344 MidiStreamView::set_note_range(VisibleNoteRange r)
346 if (r == FullRange) {
350 _lowest_note = _data_note_min;
351 _highest_note = _data_note_max;
354 apply_note_range(_lowest_note, _highest_note, true);
358 MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views)
360 _highest_note = highest;
361 _lowest_note = lowest;
363 int const max_note_height = 20; // This should probably be based on text size...
364 int const range = _highest_note - _lowest_note;
365 int const pixels_per_note = floor (child_height () / range);
367 /* do not grow note height beyond 10 pixels */
368 if (pixels_per_note > max_note_height) {
370 int const available_note_range = floor (child_height() / max_note_height);
371 int additional_notes = available_note_range - range;
373 /* distribute additional notes to higher and lower ranges, clamp at 0 and 127 */
374 for (int i = 0; i < additional_notes; i++){
376 if (i % 2 && _highest_note < 127){
382 else if (_lowest_note > 0){
391 note_range_adjustment.set_page_size(_highest_note - _lowest_note);
392 note_range_adjustment.set_value(_lowest_note);
396 if (to_region_views) {
397 apply_note_range_to_regions ();
404 MidiStreamView::apply_note_range_to_regions ()
406 if (!_updates_suspended) {
407 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
408 ((MidiRegionView*)(*i))->apply_note_range(_lowest_note, _highest_note);
414 MidiStreamView::update_note_range(uint8_t note_num)
416 _data_note_min = min(_data_note_min, note_num);
417 _data_note_max = max(_data_note_max, note_num);
421 MidiStreamView::setup_rec_box ()
423 // cerr << _trackview.name() << " streamview SRB\n";
425 if (_trackview.session()->transport_rolling()) {
428 _trackview.session()->record_status() == Session::Recording &&
429 _trackview.track()->record_enabled()) {
431 if (Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
433 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
435 MidiRegion::SourceList sources;
437 rec_data_ready_connections.drop_connections ();
439 sources.push_back (_trackview.midi_track()->write_source());
443 framepos_t start = 0;
444 if (rec_regions.size() > 0) {
445 start = rec_regions.back().first->start()
446 + _trackview.track()->get_captured_frames(rec_regions.size()-1);
449 if (!rec_regions.empty()) {
450 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rec_regions.back().second);
456 plist.add (ARDOUR::Properties::start, start);
457 plist.add (ARDOUR::Properties::length, 1);
458 /* Just above we're setting this nascent region's length to 1. I think this
459 is so that the RegionView gets created with a non-zero width, as apparently
460 creating a RegionView with a zero width causes it never to be displayed
461 (there is a warning in TimeAxisViewItem::init about this). However, we
462 must also set length_beats to something non-zero, otherwise the frame length
463 of 1 causes length_beats to be set to some small quantity << 1. Then
464 when the position is set up below, this length_beats is used to recompute
465 length using BeatsFramesConverter::to, which is slightly innacurate for small
466 beats values because it converts floating point beats to bars, beats and
467 integer ticks. The upshot of which being that length gets set back to 0,
468 meaning no region view is ever seen, meaning no MIDI notes during record (#3820).
470 plist.add (ARDOUR::Properties::length_beats, 1);
471 plist.add (ARDOUR::Properties::name, string());
472 plist.add (ARDOUR::Properties::layer, 0);
474 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
475 (RegionFactory::create (sources, plist, false)));
477 region->set_start (_trackview.track()->current_capture_start()
478 - _trackview.track()->get_capture_start_frame (0));
479 region->set_position (_trackview.track()->current_capture_start());
480 RegionView* rv = add_region_view_internal (region, false);
481 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rv);
485 /* rec region will be destroyed in setup_rec_box */
486 rec_regions.push_back (make_pair (region, rv));
488 /* we add the region later */
489 setup_new_rec_layer_time (region);
491 error << _("failed to create MIDI region") << endmsg;
495 /* start a new rec box */
497 boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
498 framepos_t const frame_pos = mt->current_capture_start ();
499 gdouble const xstart = _trackview.editor().sample_to_pixel (frame_pos);
500 gdouble const xend = xstart;
503 fill_color = ARDOUR_UI::config()->get_canvasvar_RecordingRect();
505 ArdourCanvas::Rectangle * rec_rect = new ArdourCanvas::Rectangle (_canvas_group);
506 rec_rect->set (ArdourCanvas::Rect (xstart, 1, xend, _trackview.current_height() - 1));
507 rec_rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_RecordingRect());
508 rec_rect->set_fill_color (fill_color);
509 rec_rect->lower_to_bottom();
512 recbox.rectangle = rec_rect;
513 recbox.start = _trackview.session()->transport_frame();
516 rec_rects.push_back (recbox);
518 screen_update_connection.disconnect();
519 screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
520 sigc::mem_fun (*this, &MidiStreamView::update_rec_box));
524 } else if (rec_active &&
525 (_trackview.session()->record_status() != Session::Recording ||
526 !_trackview.track()->record_enabled())) {
527 screen_update_connection.disconnect();
529 rec_updating = false;
534 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
536 if (!rec_rects.empty() || !rec_regions.empty()) {
538 /* disconnect rapid update */
539 screen_update_connection.disconnect();
540 rec_data_ready_connections.drop_connections ();
542 rec_updating = false;
545 /* remove temp regions */
547 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
548 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
553 (*iter).first->drop_references ();
560 // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
562 /* transport stopped, clear boxes */
563 for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
564 RecBoxInfo &rect = (*iter);
565 delete rect.rectangle;
575 MidiStreamView::color_handler ()
579 if (_trackview.is_midi_track()) {
580 canvas_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_MidiTrackBase());
582 canvas_rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_MidiBusBase());
587 MidiStreamView::note_range_adjustment_changed()
589 double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
590 int lowest = (int) floor(note_range_adjustment.get_value());
593 if (sum == _range_sum_cache) {
594 //cerr << "cached" << endl;
595 highest = (int) floor(sum);
597 //cerr << "recalc" << endl;
598 highest = lowest + (int) floor(note_range_adjustment.get_page_size());
599 _range_sum_cache = sum;
602 if (lowest == _lowest_note && highest == _highest_note) {
606 //cerr << "note range adjustment changed: " << lowest << " " << highest << endl;
607 //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;
609 _lowest_note = lowest;
610 _highest_note = highest;
611 apply_note_range(lowest, highest, true);
615 MidiStreamView::update_rec_box ()
617 StreamView::update_rec_box ();
619 if (rec_regions.empty()) {
623 /* Update the region being recorded to reflect where we currently are */
624 boost::shared_ptr<ARDOUR::Region> region = rec_regions.back().first;
625 region->set_length (_trackview.track()->current_capture_end () - _trackview.track()->current_capture_start());
627 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rec_regions.back().second);
628 mrv->extend_active_notes ();
632 MidiStreamView::y_to_note (double y) const
634 int const n = ((contents_height() - y - 1) / contents_height() * (double)contents_note_range())
639 } else if (n > 127) {
646 /** Suspend updates to the regions' note ranges and our
647 * note lines until resume_updates() is called.
650 MidiStreamView::suspend_updates ()
652 _updates_suspended = true;
655 /** Resume updates to region note ranges and note lines,
656 * and update them now.
659 MidiStreamView::resume_updates ()
661 _updates_suspended = false;
664 apply_note_range_to_regions ();
666 _canvas_group->redraw ();
670 MidiStreamView::leave_internal_edit_mode ()
672 StreamView::leave_internal_edit_mode ();
673 for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
674 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
676 mrv->clear_selection ();