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livetrax/gtk2_ardour/automation_streamview.cc

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/*
Copyright (C) 2001-2007 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 <list>
#include <utility>
#include <gtkmm.h>
#include "gtkmm2ext/gtk_ui.h"
#include "pbd/compose.h"
#include "canvas/debug.h"
#include "ardour/midi_region.h"
#include "ardour/midi_source.h"
#include "ardour_ui.h"
#include "automation_region_view.h"
#include "automation_streamview.h"
#include "automation_time_axis.h"
#include "global_signals.h"
#include "gui_thread.h"
#include "public_editor.h"
#include "region_selection.h"
#include "region_view.h"
#include "rgb_macros.h"
#include "selection.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Editing;
AutomationStreamView::AutomationStreamView (AutomationTimeAxisView& tv)
: StreamView (*dynamic_cast<RouteTimeAxisView*>(tv.get_parent()),
tv.canvas_display())
, _automation_view(tv)
, _pending_automation_state (Off)
{
CANVAS_DEBUG_NAME (_canvas_group, string_compose ("SV canvas group auto %1", tv.name()));
CANVAS_DEBUG_NAME (canvas_rect, string_compose ("SV canvas rectangle auto %1", tv.name()));
color_handler ();
ColorsChanged.connect(sigc::mem_fun(*this, &AutomationStreamView::color_handler));
}
AutomationStreamView::~AutomationStreamView ()
{
}
RegionView*
AutomationStreamView::add_region_view_internal (boost::shared_ptr<Region> region, bool wait_for_data, bool /*recording*/)
{
if (!region) {
return 0;
}
if (wait_for_data) {
boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
if (mr) {
Source::Lock lock(mr->midi_source()->mutex());
mr->midi_source()->load_model(lock);
}
}
const boost::shared_ptr<AutomationControl> control = boost::dynamic_pointer_cast<AutomationControl> (
region->control (_automation_view.parameter(), true)
);
boost::shared_ptr<AutomationList> list;
if (control) {
list = boost::dynamic_pointer_cast<AutomationList>(control->list());
if (control->list() && !list) {
error << _("unable to display automation region for control without list") << endmsg;
return 0;
}
}
AutomationRegionView *region_view;
std::list<RegionView *>::iterator i;
for (i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region() == region) {
/* great. we already have an AutomationRegionView for this Region. use it again. */
AutomationRegionView* arv = dynamic_cast<AutomationRegionView*>(*i);;
if (arv->line()) {
arv->line()->set_list (list);
}
(*i)->set_valid (true);
(*i)->enable_display (wait_for_data);
display_region(arv);
return 0;
}
}
region_view = new AutomationRegionView (
_canvas_group, _automation_view, region,
_automation_view.parameter (), list,
_samples_per_pixel, region_color
);
region_view->init (false);
region_views.push_front (region_view);
/* follow global waveform setting */
if (wait_for_data) {
region_view->enable_display(true);
// region_view->midi_region()->midi_source(0)->load_model();
}
display_region (region_view);
/* catch regionview going away */
region->DropReferences.connect (*this, invalidator (*this), boost::bind (&AutomationStreamView::remove_region_view, this, boost::weak_ptr<Region>(region)), gui_context());
/* setup automation state for this region */
boost::shared_ptr<AutomationLine> line = region_view->line ();
if (line && line->the_list()) {
line->the_list()->set_automation_state (automation_state ());
}
RegionViewAdded (region_view);
return region_view;
}
void
AutomationStreamView::display_region(AutomationRegionView* region_view)
{
region_view->line().reset();
}
void
AutomationStreamView::set_automation_state (AutoState state)
{
/* Setting the automation state for this view sets the state of all regions' lists to the same thing */
if (region_views.empty()) {
_pending_automation_state = state;
} else {
list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
if ((*i)->the_list()) {
(*i)->the_list()->set_automation_state (state);
}
}
}
}
void
AutomationStreamView::redisplay_track ()
{
// Flag region views as invalid and disable drawing
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_valid (false);
(*i)->enable_display(false);
}
// Add and display region views, and flag them as valid
if (_trackview.is_track()) {
_trackview.track()->playlist()->foreach_region (
sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
);
}
// Stack regions by layer, and remove invalid regions
layer_regions();
}
void
AutomationStreamView::setup_rec_box ()
{
}
void
AutomationStreamView::color_handler ()
{
if (_trackview.is_midi_track()) {
canvas_rect->set_fill_color (ARDOUR_UI::config()->color_mod ("midi track base", "midi track base"));
} else {
canvas_rect->set_fill_color (ARDOUR_UI::config()->color ("midi bus base"));
}
}
AutoState
AutomationStreamView::automation_state () const
{
if (region_views.empty()) {
return _pending_automation_state;
}
boost::shared_ptr<AutomationLine> line = ((AutomationRegionView*) region_views.front())->line ();
if (!line || !line->the_list()) {
return Off;
}
return line->the_list()->automation_state ();
}
bool
AutomationStreamView::has_automation () const
{
list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
if ((*i)->npoints() > 0) {
return true;
}
}
return false;
}
/** Our parent AutomationTimeAxisView calls this when the user requests a particular
* InterpolationStyle; tell the AutomationLists in our regions.
*/
void
AutomationStreamView::set_interpolation (AutomationList::InterpolationStyle s)
{
list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
(*i)->the_list()->set_interpolation (s);
}
}
AutomationList::InterpolationStyle
AutomationStreamView::interpolation () const
{
if (region_views.empty()) {
return AutomationList::Linear;
}
AutomationRegionView* v = dynamic_cast<AutomationRegionView*> (region_views.front());
if (v) {
return v->line()->the_list()->interpolation ();
}
return AutomationList::Linear;
}
/** Clear all automation displayed in this view */
void
AutomationStreamView::clear ()
{
list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
(*i)->clear ();
}
}
/** @param start Start position in session frames.
* @param end End position in session frames.
* @param bot Bottom position expressed as a fraction of track height where 0 is the bottom of the track.
* @param top Top position expressed as a fraction of track height where 0 is the bottom of the track.
* NOTE: this y system is different to that for the StreamView method that this overrides, which is a little
* confusing.
*/
void
AutomationStreamView::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*i);
if (arv) {
arv->line()->get_selectables (start, end, botfrac, topfrac, results);
}
}
}
void
AutomationStreamView::set_selected_points (PointSelection& ps)
{
list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
(*i)->set_selected_points (ps);
}
}
list<boost::shared_ptr<AutomationLine> >
AutomationStreamView::get_lines () const
{
list<boost::shared_ptr<AutomationLine> > lines;
for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*i);
if (arv) {
lines.push_back (arv->line());
}
}
return lines;
}
bool
AutomationStreamView::paste (framepos_t pos,
unsigned paste_count,
float times,
boost::shared_ptr<ARDOUR::AutomationList> alist)
{
/* XXX: not sure how best to pick this; for now, just use the last region which starts before pos */
if (region_views.empty()) {
return false;
}
region_views.sort (RegionView::PositionOrder());
list<RegionView*>::const_iterator prev = region_views.begin ();
for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region()->position() > pos) {
break;
}
prev = i;
}
boost::shared_ptr<Region> r = (*prev)->region ();
/* If *prev doesn't cover pos, it's no good */
if (r->position() > pos || ((r->position() + r->length()) < pos)) {
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return false;
}
AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*prev);
return arv ? arv->paste(pos, paste_count, times, alist) : false;
}