forward port of 7539 from 2.x
[ardour.git] / gtk2_ardour / midi_streamview.cc
index 19c1a53b3929b771aaceff70203cbdee120ffc4a..3bd46959def714b7fb6b339bb10f60f6361e69cb 100644 (file)
@@ -63,22 +63,15 @@ MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
        , _highest_note(71)
        , _data_note_min(60)
        , _data_note_max(71)
+        , _note_lines (0)
 {
-       if (tv.is_track()) {
-               stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
-       } else {
-               stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
-       }
-
-       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 = 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 = new ArdourCanvas::LineSet(*_canvas_group, ArdourCanvas::LineSet::Horizontal);
 
        _note_lines->property_x1() = 0;
        _note_lines->property_y1() = 0;
@@ -91,7 +84,9 @@ MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
 
        _note_lines->lower_to_bottom();
 
-       ColorsChanged.connect(sigc::mem_fun(*this, &MidiStreamView::draw_note_lines));
+       color_handler ();
+
+       ColorsChanged.connect(sigc::mem_fun(*this, &MidiStreamView::color_handler));
 
        note_range_adjustment.set_page_size(_highest_note - _lowest_note);
        note_range_adjustment.set_value(_lowest_note);
@@ -139,9 +134,9 @@ MidiStreamView::create_region_view (boost::shared_ptr<Region> r, bool /*wfd*/, b
                return 0;
        }
 
-       RegionView* region_view = new MidiRegionView (canvas_group, _trackview, region,
+       RegionView* region_view = new MidiRegionView (_canvas_group, _trackview, region,
                                                      _samples_per_unit, region_color);
-
+       
        region_view->init (region_color, false);
 
        return region_view;
@@ -180,7 +175,7 @@ MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd,
        display_region (region_view, wfd);
 
        /* catch regionview going away */
-       region->DropReferences.connect (*this, boost::bind (&MidiStreamView::remove_region_view, this, region), gui_context());
+       region->DropReferences.connect (*this, invalidator (*this), boost::bind (&MidiStreamView::remove_region_view, this, region), gui_context());
 
        RegionViewAdded (region_view);
 
@@ -211,10 +206,12 @@ MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
 }
 
 void
-MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
+MidiStreamView::display_track (boost::shared_ptr<Track> tr)
 {
-       StreamView::display_diskstream(ds);
+       StreamView::display_track (tr);
+
        draw_note_lines();
+       
        NoteRangeChanged();
 }
 
@@ -246,7 +243,7 @@ MidiStreamView::update_data_note_range(uint8_t min, uint8_t max)
 }
 
 void
-MidiStreamView::redisplay_diskstream ()
+MidiStreamView::redisplay_track ()
 {
        if (!_trackview.is_midi_track()) {
                return;
@@ -258,7 +255,7 @@ MidiStreamView::redisplay_diskstream ()
        _range_dirty = false;
        _data_note_min = 127;
        _data_note_max = 0;
-       _trackview.get_diskstream()->playlist()->foreach_region(
+       _trackview.track()->playlist()->foreach_region(
                sigc::mem_fun (*this, &StreamView::update_contents_metrics)
                );
 
@@ -281,7 +278,7 @@ MidiStreamView::redisplay_diskstream ()
        }
 
        // Add and display region views, and flag them as valid
-       _trackview.get_diskstream()->playlist()->foreach_region(
+       _trackview.track()->playlist()->foreach_region(
                sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
                );
 
@@ -298,17 +295,26 @@ MidiStreamView::update_contents_height ()
 {
        StreamView::update_contents_height();
        _note_lines->property_y2() = height;
-       draw_note_lines();
+
+        apply_note_range (lowest_note(), highest_note(), true);
 }
 
 void
 MidiStreamView::draw_note_lines()
 {
+        if (!_note_lines) {
+                return;
+        }
+
        double y;
        double prev_y = contents_height();
        uint32_t color;
 
        _note_lines->clear();
+       
+       if(height < 140){
+               return;
+       }
 
        for (int i = lowest_note(); i <= highest_note(); ++i) {
                y = floor(note_to_y(i));
@@ -357,13 +363,42 @@ MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region
 {
        _highest_note = highest;
        _lowest_note = lowest;
+       
+       int range = _highest_note - _lowest_note;  
+       int pixels_per_note = floor (height/range);
+       
+       /* do not grow note height beyond 10 pixels */
+       if (pixels_per_note > 10) {
+               
+               int available_note_range = floor ((height)/10);
+               int additional_notes = available_note_range - range;
+               
+               /* distribute additional notes to higher and lower ranges, clamp at 0 and 127 */
+               for (int i = 0; i < additional_notes; i++){
+                       
+                       if (i % 2 && _highest_note < 127){
+                               _highest_note++;
+                       }
+                       else if (i % 2) {
+                               _lowest_note--;
+                       }
+                       else if (_lowest_note > 0){
+                               _lowest_note--;
+                       }
+                       else {
+                               _highest_note++;
+                       }
+               }
+       }
+       
        note_range_adjustment.set_page_size(_highest_note - _lowest_note);
        note_range_adjustment.set_value(_lowest_note);
+       
        draw_note_lines();
 
        if (to_region_views) {
                for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
-                       ((MidiRegionView*)(*i))->apply_note_range(lowest, highest);
+                       ((MidiRegionView*)(*i))->apply_note_range(_lowest_note, _highest_note);
                }
        }
 
@@ -387,23 +422,22 @@ MidiStreamView::setup_rec_box ()
 
                if (!rec_active &&
                    _trackview.session()->record_status() == Session::Recording &&
-                   _trackview.get_diskstream()->record_enabled()) {
+                   _trackview.track()->record_enabled()) {
 
-                       if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
+                       if (Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 
-                               /* add a new region, but don't bother if they set use_rec_regions mid-record */
+                               /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 
                                MidiRegion::SourceList sources;
 
                                rec_data_ready_connections.drop_connections ();
 
-                               boost::shared_ptr<MidiDiskstream> mds = _trackview.midi_track()->midi_diskstream();
-
-                               sources.push_back(mds->write_source());
+                               sources.push_back (_trackview.midi_track()->write_source());
 
-                               mds->write_source()->ViewDataRangeReady.connect 
+                               _trackview.midi_track()->write_source()->ViewDataRangeReady.connect 
                                        (rec_data_ready_connections, 
-                                        ui_bind (&MidiStreamView::rec_data_range_ready, this, _1, _2, boost::weak_ptr<Source>(mds->write_source())),
+                                         invalidator (*this),
+                                        ui_bind (&MidiStreamView::rec_data_range_ready, this, _1, _2, boost::weak_ptr<Source>(_trackview.midi_track()->write_source())),
                                         gui_context());
 
                                // handle multi
@@ -411,7 +445,7 @@ MidiStreamView::setup_rec_box ()
                                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);
+                                                       + _trackview.track()->get_captured_frames(rec_regions.size()-1);
                                }
                                
                                PropertyList plist; 
@@ -437,8 +471,7 @@ MidiStreamView::setup_rec_box ()
                        /* start a new rec box */
 
                        boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
-                       boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
-                       nframes_t frame_pos = ds->current_capture_start ();
+                       nframes_t frame_pos = mt->current_capture_start ();
                        gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
                        gdouble xend;
                        uint32_t fill_color;
@@ -448,7 +481,7 @@ MidiStreamView::setup_rec_box ()
                        xend = xstart;
                        fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 
-                       ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
+                       ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*_canvas_group);
                        rec_rect->property_x1() = xstart;
                        rec_rect->property_y1() = 1.0;
                        rec_rect->property_x2() = xend;
@@ -472,7 +505,7 @@ MidiStreamView::setup_rec_box ()
 
                } else if (rec_active &&
                           (_trackview.session()->record_status() != Session::Recording ||
-                           !_trackview.get_diskstream()->record_enabled())) {
+                           !_trackview.track()->record_enabled())) {
                        screen_update_connection.disconnect();
                        rec_active = false;
                        rec_updating = false;
@@ -525,7 +558,7 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t
 {
        ENSURE_GUI_THREAD (*this, &MidiStreamView::update_rec_regions, data, start, dur)
 
-       if (use_rec_regions) {
+       if (Config->get_show_waveforms_while_recording ()) {
 
                uint32_t n = 0;
                bool     update_range = false;
@@ -558,10 +591,10 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t
 
                                        if (nlen != region->length()) {
 
-                                               region->freeze ();
-                                               region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
+                                               region->suspend_property_changes ();
+                                               region->set_position (_trackview.track()->get_capture_start_frame(n), this);
                                                region->set_length (start + dur - region->position(), this);
-                                               region->thaw ();
+                                               region->resume_property_changes ();
 
                                                if (origlen == 1) {
                                                        /* our special initial length */
@@ -585,11 +618,23 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t
 
                                                        const boost::shared_ptr<MidiRegionView::NoteType>& note = *i;
 
+                                                        cerr << "New note arrived, length = " << note->length()
+                                                             << " num " << note->note()
+                                                             << endl;
+
+                                                        if (note->length() == 0) {
+                                                                /* we got NoteOn but not NoteOff (yet)
+                                                                 */
+                                                                continue;
+                                                        }
+                                                        
                                                        nframes_t note_start_frames = tconv.to(note->time());
                                                        nframes_t note_end_frames   = tconv.to(note->end_time());
 
-                                                       if (note->length() > 0 && note_end_frames + region->position() > start)
+
+                                                       if (note->length() > 0 && note_end_frames + region->position() > start) {
                                                                mrv->resolve_note(note->note(), note_end_frames);
+                                                        }
 
                                                        if (note_start_frames + region->position() < start) {
                                                                continue;
@@ -616,16 +661,16 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t
 
                        } else {
 
-                               nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
+                               nframes_t nlen = _trackview.track()->get_captured_frames(n);
 
                                if (nlen != region->length()) {
 
                                        if (region->source_length(0) >= region->position() + nlen) {
 
-                                               region->freeze ();
-                                               region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
+                                               region->suspend_property_changes ();
+                                               region->set_position (_trackview.track()->get_capture_start_frame(n), this);
                                                region->set_length (nlen, this);
-                                               region->thaw ();
+                                               region->resume_property_changes ();
 
                                                if (origlen == 1) {
                                                        /* our special initial length */
@@ -671,14 +716,12 @@ MidiStreamView::rec_data_range_ready (nframes_t start, nframes_t cnt, boost::wea
 void
 MidiStreamView::color_handler ()
 {
-       //case cMidiTrackBase:
-       if (_trackview.is_midi_track()) {
-               //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
-       }
+        draw_note_lines ();
 
-       //case cMidiBusBase:
-       if (!_trackview.is_midi_track()) {
-               //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
+       if (_trackview.is_midi_track()) {
+               canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
+       } else {
+               canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
        }
 }