Fix ruler scale on initial view (apply patch from nick_m).
[ardour.git] / gtk2_ardour / midi_streamview.cc
index e602c3a880d7e9b7789b5e8ac0cbcae3f4031760..81be5834964e08eeaf0a1b1d11b3afcf88d5d1f4 100644 (file)
@@ -46,6 +46,7 @@
 #include "gui_thread.h"
 #include "utils.h"
 #include "simplerect.h"
+#include "lineset.h"
 
 using namespace std;
 using namespace ARDOUR;
@@ -54,6 +55,9 @@ using namespace Editing;
 
 MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
        : StreamView (tv)
+       , note_range_adjustment(0.0f, 0.0f, 0.0f)
+       , _range(ContentsRange)
+       , _range_sum_cache(-1.0)
        , _lowest_note(60)
        , _highest_note(60)
 {
@@ -61,12 +65,27 @@ MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
                stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
        else
                stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
-       
-       canvas_rect->property_fill_color_rgba() = stream_base_color;
-       canvas_rect->property_outline_color_rgba() = RGBA_BLACK;
 
-       //use_rec_regions = tv.editor.show_waveforms_recording ();
-       use_rec_regions = true;
+       use_rec_regions = tv.editor.show_waveforms_recording ();
+
+       /* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
+       midi_underlay_group = new ArdourCanvas::Group (*canvas_group);
+       midi_underlay_group->lower_to_bottom();
+
+       /* put the note lines in the timeaxisview's group, so it 
+          can be put below ghost regions from MIDI underlays*/
+       _note_lines = new ArdourCanvas::Lineset(*canvas_group, ArdourCanvas::Lineset::Horizontal);
+
+       _note_lines->property_x1() = 0;
+       _note_lines->property_y1() = 0;
+       _note_lines->property_x2() = trackview().editor.frame_to_pixel (max_frames);
+       _note_lines->property_y2() = 0;
+
+       _note_lines->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), _note_lines, &_trackview));
+       _note_lines->lower_to_bottom();
+
+       note_range_adjustment.signal_value_changed().connect (mem_fun (*this, &MidiStreamView::note_range_adjustment_changed));
+       ColorsChanged.connect(mem_fun(*this, &MidiStreamView::draw_note_lines));
 }
 
 MidiStreamView::~MidiStreamView ()
@@ -75,7 +94,7 @@ MidiStreamView::~MidiStreamView ()
 
 
 RegionView*
-MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
+MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd)
 {
        boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
 
@@ -92,28 +111,28 @@ MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait
                        /* great. we already have a MidiRegionView for this Region. use it again. */
 
                        (*i)->set_valid (true);
-                       display_region(dynamic_cast<MidiRegionView*>(*i), false);
+                       (*i)->enable_display(wfd);
+                       display_region(dynamic_cast<MidiRegionView*>(*i), wfd);
 
                        return NULL;
                }
        }
        
-       // can't we all just get along?
-       assert(_trackview.midi_track()->mode() != Destructive);
-
        region_view = new MidiRegionView (canvas_group, _trackview, region, 
                        _samples_per_unit, region_color);
-
-       region_view->init (region_color, wait_for_waves);
+               
+       region_view->init (region_color, false);
        region_views.push_front (region_view);
        
        /* follow global waveform setting */
 
-       // FIXME
-       //region_view->set_waveform_visible(_trackview.editor.show_waveforms());
+       if (wfd) {
+               region_view->enable_display(true);
+               region_view->midi_region()->midi_source(0)->load_model();
+       }
 
        /* display events and find note range */
-       display_region(region_view, false);
+       display_region(region_view, wfd);
 
        /* always display at least 1 octave range */
        _highest_note = max(_highest_note, static_cast<uint8_t>(_lowest_note + 11));
@@ -127,27 +146,31 @@ MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait
 }
 
 void
-MidiStreamView::display_region(MidiRegionView* region_view, bool redisplay_events)
+MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
 {
        if ( ! region_view)
                return;
 
-       if (redisplay_events)
-               region_view->begin_write();
-       
        boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
 
-       for (size_t i=0; i < source->model()->n_notes(); ++i) {
-               const MidiModel::Note& note = source->model()->note_at(i);
-               
-               update_bounds(note.note());
+       if (load_model)
+               source->load_model();
 
-               if (redisplay_events)
-                       region_view->add_note(note);
-       }
+       // Find our note range
+       if (source->model())
+               for (size_t i=0; i < source->model()->n_notes(); ++i)
+                       update_bounds(source->model()->note_at(i)->note());
        
-       if (redisplay_events)
-               region_view->end_write();
+       // Display region contents
+       region_view->display_model(source->model());
+}
+
+void
+MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
+{
+       StreamView::display_diskstream(ds);
+       draw_note_lines();
+       NoteRangeChanged();
 }
 
 // FIXME: code duplication with AudioStreamView
@@ -157,7 +180,15 @@ MidiStreamView::redisplay_diskstream ()
        list<RegionView *>::iterator i, tmp;
 
        for (i = region_views.begin(); i != region_views.end(); ++i) {
+               (*i)->enable_display(true); // FIXME: double display, remove
                (*i)->set_valid (false);
+               
+               /* FIXME: slow.  MidiRegionView needs a find_note_range method
+                * that finds the range without wasting time drawing the events */
+
+               // Load model if it isn't already, to get note range
+               MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
+               mrv->midi_region()->midi_source(0)->load_model();
        }
        
        //_lowest_note = 60; // middle C
@@ -166,6 +197,14 @@ MidiStreamView::redisplay_diskstream ()
        if (_trackview.is_midi_track()) {
                _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
        }
+
+       /* Always display at least one octave */
+       if (_highest_note == 127) {
+               if (_lowest_note > (127 - 11))
+                       _lowest_note = 127 - 11;
+       } else if (_highest_note < _lowest_note + 11) {
+               _highest_note = _lowest_note + 11;
+       }
        
        for (i = region_views.begin(); i != region_views.end(); ) {
                tmp = i;
@@ -175,17 +214,101 @@ MidiStreamView::redisplay_diskstream ()
                        delete *i;
                        region_views.erase (i);
                } else {
+                       (*i)->enable_display(true);
                        (*i)->set_y_position_and_height(0, height); // apply note range
                }
 
                i = tmp;
        }
-
+       
        /* now fix layering */
 
        for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
                region_layered (*i);
        }
+       
+       note_range_adjustment.set_page_size(_highest_note - _lowest_note);
+       note_range_adjustment.set_value(_lowest_note);
+       NoteRangeChanged();
+       draw_note_lines();
+}
+
+
+void
+MidiStreamView::update_contents_y_position_and_height ()
+{
+       StreamView::update_contents_y_position_and_height();
+       _note_lines->property_y2() = height;
+       draw_note_lines();
+}
+       
+void
+MidiStreamView::draw_note_lines()
+{
+       double y;
+       double prev_y = contents_height();
+       uint32_t color;
+
+       _note_lines->clear();
+
+       for(int i = _lowest_note; i <= _highest_note; ++i) {
+               y = floor(note_to_y(i));
+               
+               _note_lines->add_line(prev_y, 1.0, ARDOUR_UI::config()->canvasvar_PianoRollBlackOutline.get());
+
+               switch(i % 12) {
+               case 1:
+               case 3:
+               case 6:
+               case 8:
+               case 10:
+                       color = ARDOUR_UI::config()->canvasvar_PianoRollBlack.get();
+                       break;
+               default:
+                       color = ARDOUR_UI::config()->canvasvar_PianoRollWhite.get();
+                       break;
+               }
+
+               if(i == _highest_note) {
+                       _note_lines->add_line(y, prev_y - y, color);
+               }
+               else {
+                       _note_lines->add_line(y + 1.0, prev_y - y - 1.0, color);
+               }
+
+               prev_y = y;
+       }
+}
+       
+
+void
+MidiStreamView::set_note_range(VisibleNoteRange r)
+{
+       _range = r;
+       if (r == FullRange) {
+               _lowest_note = 0;
+               _highest_note = 127;
+       } else {
+               _lowest_note = 60;
+               _highest_note = 60;
+       }
+       redisplay_diskstream();
+}
+
+void
+MidiStreamView::set_note_range(uint8_t lowest, uint8_t highest) {
+       if(_range == ContentsRange) {
+               _lowest_note = lowest;
+               _highest_note = highest;
+
+               list<RegionView *>::iterator i;
+               for (i = region_views.begin(); i != region_views.end(); ++i) {
+                       (*i)->set_y_position_and_height(0, height); // apply note range
+               }
+       }
+
+       draw_note_lines();
+       NoteRangeChanged();
 }
        
 void 
@@ -230,7 +353,7 @@ MidiStreamView::setup_rec_box ()
                                
                                jack_nframes_t start = 0;
                                if (rec_regions.size() > 0) {
-                                       start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
+                                       start = rec_regions.back().first->position() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
                                }
                                
                                boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
@@ -336,13 +459,14 @@ MidiStreamView::setup_rec_box ()
 }
 
 void
-MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_t start, nframes_t dur)
+MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
 {
        ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
 
        if (use_rec_regions) {
 
                uint32_t n = 0;
+               bool     update_range = false;
 
                for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 
@@ -364,22 +488,19 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_
 
                        nframes_t origlen = region->length();
                        
-                       //cerr << "MIDI URR: " << start << " * " << dur
-                       //      << " (origlen " << origlen << ")" << endl;
-
                        if (region == rec_regions.back().first && rec_active) {
 
-                               if (start >= region->start()) {
-
-                                       nframes_t nlen = start + dur - region->start();
+                               if (start >= region->midi_source(0)->timeline_position()) {
+                               
+                                       nframes_t nlen = start + dur - region->position();
 
                                        if (nlen != region->length()) {
-
+                                       
                                                region->freeze ();
                                                region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
-                                               region->set_length (nlen, this);
+                                               region->set_length (start + dur - region->position(), this);
                                                region->thaw ("updated");
-
+                                               
                                                if (origlen == 1) {
                                                        /* our special initial length */
                                                        iter->second = add_region_view_internal (region, false);
@@ -393,22 +514,43 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_
 
                                                /* draw events */
                                                MidiRegionView* mrv = (MidiRegionView*)iter->second;
-                                               for (MidiBuffer::iterator i = data->begin(); i != data->end(); ++i) {
-                                                       const MidiEvent& ev = *i;
-                                                       mrv->add_event(ev);
-                                                       mrv->extend_active_notes();
-                                               }
+                                               for (size_t i=0; i < data->n_notes(); ++i) {
+
+                                                       // FIXME: slooooooooow!
+
+                                                       const boost::shared_ptr<Note> note = data->note_at(i);
+                                                       
+                                                       if (note->duration() > 0 && note->end_time() + region->position() > start)
+                                                               mrv->resolve_note(note->note(), note->end_time());
+
+                                                       if (note->time() + region->position() < start)
+                                                               continue;
+
+                                                       if (note->time() + region->position() > start + dur)
+                                                               break;
+
+                                                       mrv->add_note(note);
 
+                                                       if (note->note() < _lowest_note) {
+                                                               _lowest_note = note->note();
+                                                               update_range = true;
+                                                       } else if (note->note() > _highest_note) {
+                                                               _highest_note = note->note();
+                                                               update_range = true;
+                                                       }
+                                               }
+                                               
+                                               mrv->extend_active_notes();
                                        }
                                }
 
                        } else {
-
+                               
                                nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 
                                if (nlen != region->length()) {
 
-                                       if (region->source(0)->length() >= region->start() + nlen) {
+                                       if (region->source(0)->length() >= region->position() + nlen) {
 
                                                region->freeze ();
                                                region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
@@ -430,22 +572,22 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_
 
                        iter = tmp;
                }
+
+               if (update_range)
+                       update_contents_y_position_and_height();
        }
 }
 
 void
-MidiStreamView::rec_data_range_ready (boost::shared_ptr<MidiBuffer> data, jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
+MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
 {
        // this is called from the butler thread for now
        
-       ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), data, start, dur, weak_src));
+       ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
        
        boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
        
-       //cerr << src.get() << " MIDI READY: " << start << " * " << dur
-       //      << " -- " << data->size() << " events!" << endl;
-       
-       this->update_rec_regions (data, start, dur);
+       this->update_rec_regions (src->model(), start, dur);
 }
 
 void
@@ -454,12 +596,37 @@ MidiStreamView::color_handler ()
 
        //case cMidiTrackBase:
        if (_trackview.is_midi_track()) {
-               canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
+               //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
        } 
 
        //case cMidiBusBase:
        if (!_trackview.is_midi_track()) {
-               canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
+               //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
        }
 }
 
+void
+MidiStreamView::note_range_adjustment_changed() {
+       double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
+       int lowest = (int) floor(note_range_adjustment.get_value());
+       int highest;
+
+       if(sum == _range_sum_cache) {
+               //cerr << "cached" << endl;
+               highest = (int) floor(sum);
+       }
+       else {
+               //cerr << "recalc" << endl;
+               highest = lowest + (int) floor(note_range_adjustment.get_page_size());
+               _range_sum_cache = sum;
+       }
+
+       if(lowest == lowest_note() && highest == highest_note()) {
+               return;
+       }
+
+       //cerr << "note range changed: " << lowest << " " << highest << endl;
+       //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;
+
+       set_note_range(lowest, highest);
+}