Heavy-duty abstraction work to split type-specific classes into

specializations of (new, for the most part) generic bases.  (eg. most everything
from the MIDI branch except for actual MIDI things, so merges have a chance of
succeeding).  Also the new edit toolbar, and various other cleanup things I did
along the way.

Should be functionally equivalent (except the toolbar), this is just design work.

She's a big'un....



git-svn-id: svn://localhost/ardour2/trunk@727 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 698 insertions, 0 deletions

diff --git a/gtk2_ardour/audio_streamview.cc b/gtk2_ardour/audio_streamview.cc
new file mode 100644
index 0000000000..68df5ffe43
--- /dev/null
+++ b/gtk2_ardour/audio_streamview.cc
@@ -0,0 +1,698 @@
+/*
+    Copyright (C) 2001, 2006 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <cmath>
+#include <cassert>
+
+#include <gtkmm.h>
+
+#include <gtkmm2ext/gtk_ui.h>
+
+#include <ardour/audioplaylist.h>
+#include <ardour/audioregion.h>
+#include <ardour/audiosource.h>
+#include <ardour/audio_diskstream.h>
+#include <ardour/audio_track.h>
+#include <ardour/playlist_templates.h>
+#include <ardour/source.h>
+
+#include "audio_streamview.h"
+#include "audio_region_view.h"
+#include "tape_region_view.h"
+#include "audio_time_axis.h"
+#include "canvas-waveview.h"
+#include "canvas-simplerect.h"
+#include "region_selection.h"
+#include "selection.h"
+#include "public_editor.h"
+#include "ardour_ui.h"
+#include "crossfade_view.h"
+#include "rgb_macros.h"
+#include "gui_thread.h"
+#include "utils.h"
+#include "color.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+using namespace Editing;
+
+AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
+	: StreamView (tv)
+{
+	crossfades_visible = true;
+
+	if (tv.is_audio_track())
+		stream_base_color = color_map[cAudioTrackBase];
+	else
+		stream_base_color = color_map[cAudioBusBase];
+
+	canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
+
+	_amplitude_above_axis = 1.0;
+
+	use_rec_regions = tv.editor.show_waveforms_recording ();
+	last_rec_peak_frame = 0;
+}
+
+AudioStreamView::~AudioStreamView ()
+{
+}
+
+int
+AudioStreamView::set_height (gdouble h)
+{
+	/* limit the values to something sane-ish */
+	if (h < 10.0 || h > 1000.0) {
+		return -1;
+	}
+
+	StreamView::set_height(h);
+
+	for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		(*i)->set_height (h);
+	}
+
+	return 0;
+}
+
+int 
+AudioStreamView::set_samples_per_unit (gdouble spp)
+{
+	StreamView::set_samples_per_unit(spp);
+
+	for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
+		(*xi)->set_samples_per_unit (spp);
+	}
+
+	return 0;
+}
+
+int 
+AudioStreamView::set_amplitude_above_axis (gdouble app)
+{
+	RegionViewList::iterator i;
+
+	if (app < 1.0) {
+		return -1;
+	}
+
+	_amplitude_above_axis = app;
+
+	for (i = region_views.begin(); i != region_views.end(); ++i) {
+		AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
+		if (arv)
+			arv->set_amplitude_above_axis (app);
+	}
+
+	return 0;
+}
+
+void
+AudioStreamView::add_region_view_internal (Region *r, bool wait_for_waves)
+{
+	ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
+
+	AudioRegion* region = dynamic_cast<AudioRegion*> (r);
+
+	if (region == 0) {
+		return;
+	}
+
+	AudioRegionView *region_view;
+	list<RegionView *>::iterator i;
+
+	for (i = region_views.begin(); i != region_views.end(); ++i) {
+		if (&(*i)->region() == r) {
+			
+			/* great. we already have a AudioRegionView for this Region. use it again. */
+
+			(*i)->set_valid (true);
+			return;
+		}
+	}
+	
+	switch (_trackview.audio_track()->mode()) {
+	case Normal:
+		region_view = new AudioRegionView (canvas_group, _trackview, *region, 
+						   _samples_per_unit, region_color);
+		break;
+	case Destructive:
+		region_view = new TapeAudioRegionView (canvas_group, _trackview, *region, 
+						       _samples_per_unit, region_color);
+		break;
+	}
+
+	region_view->init (region_color, wait_for_waves);
+	region_view->set_amplitude_above_axis(_amplitude_above_axis);
+	region_views.push_front (region_view);
+	
+	/* follow global waveform setting */
+
+	region_view->set_waveform_visible(_trackview.editor.show_waveforms());
+
+	/* catch regionview going away */
+
+	region->GoingAway.connect (mem_fun (*this, &AudioStreamView::remove_region_view));
+	
+	RegionViewAdded (region_view);
+}
+
+void
+AudioStreamView::remove_region_view (Region *r)
+{
+	ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), r));
+
+	for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
+		list<CrossfadeView*>::iterator tmp;
+		
+		tmp = i;
+		++tmp;
+		
+		AudioRegion* ar = dynamic_cast<AudioRegion*>(r);
+		if (ar && (*i)->crossfade.involves (*ar)) {
+			delete *i;
+			crossfade_views.erase (i);
+		}
+		
+		i = tmp;
+	}
+
+	StreamView::remove_region_view(r);
+}
+
+void
+AudioStreamView::undisplay_diskstream ()
+{
+	StreamView::undisplay_diskstream();
+
+	for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		delete *i;
+	}
+
+	crossfade_views.clear ();
+}
+
+void
+AudioStreamView::playlist_modified ()
+{
+	ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
+
+	StreamView::playlist_modified();
+	
+	/* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked 
+	   correctly.
+	*/
+
+	for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		(*i)->get_canvas_group()->raise_to_top();
+	}
+}
+
+void
+AudioStreamView::playlist_changed (Diskstream *ds)
+{
+	ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
+
+	StreamView::playlist_changed(ds);
+
+	AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(ds->playlist());
+	if (apl)
+		playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
+}
+
+void
+AudioStreamView::add_crossfade (Crossfade *crossfade)
+{
+	AudioRegionView* lview = 0;
+	AudioRegionView* rview = 0;
+
+	ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
+
+	/* first see if we already have a CrossfadeView for this Crossfade */
+
+	for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		if (&(*i)->crossfade == crossfade) {
+			if (!crossfades_visible) {
+				(*i)->hide();
+			} else {
+				(*i)->show ();
+			}
+			(*i)->set_valid (true);
+			return;
+		}
+	}
+
+	/* create a new one */
+
+	for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
+		AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
+
+		if (!lview && arv && &(arv->region()) == &crossfade->out()) {
+			lview = arv;
+		}
+		if (!rview && arv && &(arv->region()) == &crossfade->in()) {
+			rview = arv;
+		}
+	}
+
+	CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
+					       _trackview,
+					       *crossfade,
+					       _samples_per_unit,
+					       region_color,
+					       *lview, *rview);
+
+	crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
+	crossfade_views.push_back (cv);
+
+	if (!crossfades_visible) {
+		cv->hide ();
+	}
+}
+
+void
+AudioStreamView::remove_crossfade (Crossfade *xfade)
+{
+	ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), xfade));
+
+	for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		if (&(*i)->crossfade == xfade) {
+			delete *i;
+			crossfade_views.erase (i);
+			break;
+		}
+	}
+}
+
+void
+AudioStreamView::redisplay_diskstream ()
+{
+	list<RegionView *>::iterator i, tmp;
+	list<CrossfadeView*>::iterator xi, tmpx;
+
+	
+	for (i = region_views.begin(); i != region_views.end(); ++i) {
+		(*i)->set_valid (false);
+	}
+
+	for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
+		(*xi)->set_valid (false);
+		if ((*xi)->visible()) {
+			(*xi)->show ();
+		}
+	}
+
+	if (_trackview.is_audio_track()) {
+		_trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
+		AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(_trackview.get_diskstream()->playlist());
+		if (apl)
+			apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
+	}
+
+	for (i = region_views.begin(); i != region_views.end(); ) {
+		tmp = i;
+		tmp++;
+
+		if (!(*i)->is_valid()) {
+			delete *i;
+			region_views.erase (i);
+		} 
+
+		i = tmp;
+	}
+
+	for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
+		tmpx = xi;
+		tmpx++;
+
+		if (!(*xi)->valid()) {
+			delete *xi;
+			crossfade_views.erase (xi);
+		}
+
+		xi = tmpx;
+	}
+
+	/* now fix layering */
+
+	playlist_modified ();
+}
+
+void
+AudioStreamView::set_show_waveforms (bool yn)
+{
+	for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
+		AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
+		if (arv)
+			arv->set_waveform_visible (yn);
+	}
+}
+
+void
+AudioStreamView::set_waveform_shape (WaveformShape shape)
+{
+	for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
+		AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
+		if (arv)
+			arv->set_waveform_shape (shape);
+	}
+}		
+		
+void
+AudioStreamView::setup_rec_box ()
+{
+	// cerr << _trackview.name() << " streamview SRB\n";
+
+	if (_trackview.session().transport_rolling()) {
+
+		// cerr << "\trolling\n";
+
+		if (!rec_active && 
+		    _trackview.session().record_status() == Session::Recording && 
+		    _trackview.get_diskstream()->record_enabled()) {
+
+			if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
+
+				/* add a new region, but don't bother if they set use_rec_regions mid-record */
+
+				AudioRegion::SourceList sources;
+
+				for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
+					(*prc).disconnect();
+				}
+				peak_ready_connections.clear();
+					
+				// FIXME
+				AudioDiskstream* ads = dynamic_cast<AudioDiskstream*>(_trackview.get_diskstream());
+				assert(ads);
+
+				for (uint32_t n=0; n < ads->n_channels(); ++n) {
+					AudioSource *src = (AudioSource *) ads->write_source (n);
+					if (src) {
+						sources.push_back (src);
+						peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), src))); 
+					}
+				}
+
+				// handle multi
+				
+				jack_nframes_t start = 0;
+				if (rec_regions.size() > 0) {
+					start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
+				}
+				
+				AudioRegion * region = new AudioRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
+				region->set_position (_trackview.session().transport_frame(), this);
+				rec_regions.push_back (region);
+				/* catch it if it goes away */
+				region->GoingAway.connect (mem_fun (*this, &AudioStreamView::remove_rec_region));
+
+				/* we add the region later */
+			}
+			
+			/* start a new rec box */
+
+			AudioTrack* at;
+
+			at = _trackview.audio_track(); /* we know what it is already */
+			AudioDiskstream& ds = at->audio_diskstream();
+			jack_nframes_t frame_pos = ds.current_capture_start ();
+			gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
+			gdouble xend;
+			uint32_t fill_color;
+
+			switch (_trackview.audio_track()->mode()) {
+			case Normal:
+				xend = xstart;
+				fill_color = color_map[cRecordingRectFill];
+				break;
+
+			case Destructive:
+				xend = xstart + 2;
+				fill_color = color_map[cRecordingRectFill];
+				/* make the recording rect translucent to allow
+				   the user to see the peak data coming in, etc.
+				*/
+				fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
+				break;
+			}
+			
+			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;
+			rec_rect->property_y2() = (double) _trackview.height - 1;
+			rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
+			rec_rect->property_fill_color_rgba() = fill_color;
+			
+			RecBoxInfo recbox;
+			recbox.rectangle = rec_rect;
+			recbox.start = _trackview.session().transport_frame();
+			recbox.length = 0;
+			
+			rec_rects.push_back (recbox);
+			
+			screen_update_connection.disconnect();
+			screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));	
+			rec_updating = true;
+			rec_active = true;
+
+		} else if (rec_active &&
+			   (_trackview.session().record_status() != Session::Recording ||
+			    !_trackview.get_diskstream()->record_enabled())) {
+
+			screen_update_connection.disconnect();
+			rec_active = false;
+			rec_updating = false;
+
+		}
+		
+	} else {
+
+		// cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
+
+		if (!rec_rects.empty() || !rec_regions.empty()) {
+
+			/* disconnect rapid update */
+			screen_update_connection.disconnect();
+
+			for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
+				(*prc).disconnect();
+			}
+			peak_ready_connections.clear();
+
+			rec_updating = false;
+			rec_active = false;
+			last_rec_peak_frame = 0;
+			
+			/* remove temp regions */
+			for (list<Region*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
+			{
+				list<Region*>::iterator tmp;
+
+				tmp = iter;
+				++tmp;
+
+				/* this will trigger the remove_region_view */
+				delete *iter;
+
+				iter = tmp;
+			}
+			
+			rec_regions.clear();
+
+			// cerr << "\tclear " << rec_rects.size() << " rec rects\n";
+		
+
+			/* transport stopped, clear boxes */
+			for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
+				RecBoxInfo &rect = (*iter);
+				delete rect.rectangle;
+			}
+			
+			rec_rects.clear();
+			
+		}
+	}
+}
+
+void
+AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
+{
+	for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		((*i)->*pmf) ();
+	}
+}
+
+void
+AudioStreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, Source * src)
+{
+	// this is called from the peak building thread
+
+	ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, src));
+	
+	if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
+		last_rec_peak_frame = start + cnt;
+	}
+
+	rec_peak_ready_map[src] = true;
+
+	if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
+		this->update_rec_regions ();
+		rec_peak_ready_map.clear();
+	}
+}
+
+void
+AudioStreamView::update_rec_regions ()
+{
+	if (use_rec_regions) {
+
+		uint32_t n = 0;
+
+		for (list<Region*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
+
+			list<Region*>::iterator tmp;
+
+			tmp = iter;
+			++tmp;
+
+			if (!canvas_item_visible (rec_rects[n].rectangle)) {
+				/* rect already hidden, this region is done */
+				iter = tmp;
+				continue;
+			}
+			
+			// FIXME
+			AudioRegion * region = dynamic_cast<AudioRegion*>(*iter);
+			assert(region);
+
+			jack_nframes_t origlen = region->length();
+
+			if (region == rec_regions.back() && rec_active) {
+
+				if (last_rec_peak_frame > region->start()) {
+
+					jack_nframes_t nlen = last_rec_peak_frame - region->start();
+
+					if (nlen != region->length()) {
+
+						region->freeze ();
+						region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
+						region->set_length (nlen, this);
+						region->thaw ("updated");
+
+						if (origlen == 1) {
+							/* our special initial length */
+							add_region_view_internal (region, false);
+						}
+
+						/* also update rect */
+						ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
+						gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
+						rect->property_x2() = xend;
+					}
+				}
+
+			} else {
+
+				jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
+
+				if (nlen != region->length()) {
+
+					if (region->source(0).length() >= region->start() + nlen) {
+
+						region->freeze ();
+						region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
+						region->set_length (nlen, this);
+						region->thaw ("updated");
+						
+						if (origlen == 1) {
+							/* our special initial length */
+							add_region_view_internal (region, false);
+						}
+						
+						/* also hide rect */
+						ArdourCanvas::Item * rect = rec_rects[n].rectangle;
+						rect->hide();
+
+					}
+				}
+			}
+
+			iter = tmp;
+		}
+	}
+}
+
+void
+AudioStreamView::show_all_xfades ()
+{
+	foreach_crossfadeview (&CrossfadeView::show);
+	crossfades_visible = true;
+}
+
+void
+AudioStreamView::hide_all_xfades ()
+{
+	foreach_crossfadeview (&CrossfadeView::hide);
+	crossfades_visible = false;
+}
+
+void
+AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
+{
+	for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		if ((*i)->crossfade.involves (rv.audio_region())) {
+			(*i)->fake_hide ();
+		}
+	}
+}
+
+void
+AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
+{
+	for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
+		if ((*i)->crossfade.involves (rv.audio_region()) && (*i)->visible()) {
+			(*i)->show ();
+		}
+	}
+}
+
+void
+AudioStreamView::color_handler (ColorID id, uint32_t val)
+{
+	switch (id) {
+	case cAudioTrackBase:
+		if (_trackview.is_audio_track()) {
+			canvas_rect->property_fill_color_rgba() = val;
+		} 
+		break;
+	case cAudioBusBase:
+		if (!_trackview.is_audio_track()) {
+			canvas_rect->property_fill_color_rgba() = val;
+		}
+		break;
+	case cAudioTrackOutline:
+		canvas_rect->property_outline_color_rgba() = val;
+		break;
+
+	default:
+		break;
+	}
+}