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livetrax/gtk2_ardour/editor_tempodisplay.cc
2021-08-13 12:51:33 -06:00

552 lines
15 KiB
C++

/*
* Copyright (C) 2005-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2006-2015 David Robillard <d@drobilla.net>
* Copyright (C) 2006-2015 Tim Mayberry <mojofunk@gmail.com>
* Copyright (C) 2007 Doug McLain <doug@nostar.net>
* Copyright (C) 2008-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2014-2015 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015-2017 Nick Mainsbridge <mainsbridge@gmail.com>
* Copyright (C) 2017-2018 Ben Loftis <ben@harrisonconsoles.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif
#include <cstdio> // for sprintf, grrr
#include <cstdlib>
#include <cmath>
#include <string>
#include <climits>
#include "pbd/error.h"
#include "pbd/memento_command.h"
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/gtk_ui.h>
#include "ardour/session.h"
#include "ardour/tempo.h"
#include <gtkmm2ext/doi.h>
#include <gtkmm2ext/utils.h>
#include "canvas/canvas.h"
#include "canvas/item.h"
#include "canvas/line_set.h"
#include "editor.h"
#include "marker.h"
#include "tempo_dialog.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "time_axis_view.h"
#include "grid_lines.h"
#include "ui_config.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace Editing;
using namespace Temporal;
void
Editor::remove_metric_marks ()
{
/* don't delete these while handling events, just punt till the GUI is idle */
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
delete_when_idle (*x);
}
metric_marks.clear ();
for (Curves::iterator x = tempo_curves.begin(); x != tempo_curves.end(); ++x) {
delete (*x);
}
tempo_curves.clear ();
}
struct CurveComparator {
bool operator() (TempoCurve const * a, TempoCurve const * b) {
return a->tempo().sclock() < b->tempo().sclock();
}
};
void
Editor::draw_metric_marks (TempoMap::Metrics const & metrics)
{
if (!_session) {
return;
}
char buf[64];
TempoPoint* prev_ts = 0;
double max_tempo = 0.0;
double min_tempo = DBL_MAX;
const samplecnt_t sr (_session->sample_rate());
remove_metric_marks (); // also clears tempo curves
for (TempoMap::Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
Temporal::MeterPoint *ms;
Temporal::TempoPoint *ts;
if ((ms = dynamic_cast<Temporal::MeterPoint*>(*i)) != 0) {
snprintf (buf, sizeof(buf), "%d/%d", ms->divisions_per_bar(), ms->note_value ());
if (ms->map().time_domain() == BeatTime) {
metric_marks.push_back (new MeterMarker (*this, *meter_group, UIConfiguration::instance().color ("meter marker music"), buf, *ms));
} else {
metric_marks.push_back (new MeterMarker (*this, *meter_group, UIConfiguration::instance().color ("meter marker"), buf, *ms));
}
} else if ((ts = dynamic_cast<Temporal::TempoPoint*>(*i)) != 0) {
max_tempo = max (max_tempo, ts->note_types_per_minute());
max_tempo = max (max_tempo, ts->end_note_types_per_minute());
min_tempo = min (min_tempo, ts->note_types_per_minute());
min_tempo = min (min_tempo, ts->end_note_types_per_minute());
uint32_t const tc_color = UIConfiguration::instance().color ("tempo curve");
tempo_curves.push_back (new TempoCurve (*this, *tempo_group, tc_color, *ts, ts->sample (sr), false));
const std::string tname (X_(""));
if (ts->map().time_domain() == BeatTime) {
metric_marks.push_back (new TempoMarker (*this, *tempo_group, UIConfiguration::instance().color ("tempo marker music"), tname, *ts));
} else {
metric_marks.push_back (new TempoMarker (*this, *tempo_group, UIConfiguration::instance().color ("tempo marker"), tname, *ts));
}
if (prev_ts && abs (prev_ts->end_note_types_per_minute() - ts->note_types_per_minute()) < 1.0) {
metric_marks.back()->set_points_color (UIConfiguration::instance().color ("tempo marker music"));
} else {
metric_marks.back()->set_points_color (UIConfiguration::instance().color ("tempo marker"));
}
prev_ts = ts;
}
}
tempo_curves.sort (CurveComparator());
const double min_tempo_range = 5.0;
const double tempo_delta = fabs (max_tempo - min_tempo);
if (tempo_delta < min_tempo_range) {
max_tempo += min_tempo_range - tempo_delta;
min_tempo += tempo_delta - min_tempo_range;
}
for (Curves::iterator x = tempo_curves.begin(); x != tempo_curves.end(); ) {
Curves::iterator tmp = x;
(*x)->set_max_tempo (max_tempo);
(*x)->set_min_tempo (min_tempo);
++tmp;
if (tmp != tempo_curves.end()) {
(*x)->set_position ((*x)->tempo().sample(sr), (*tmp)->tempo().sample(sr));
} else {
(*x)->set_position ((*x)->tempo().sample(sr), UINT32_MAX);
}
if (!(*x)->tempo().active()) {
(*x)->hide();
} else {
(*x)->show();
}
++x;
}
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
TempoMarker* tempo_marker;
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
tempo_marker->update_height_mark ((tempo_marker->tempo().note_types_per_minute() - min_tempo) / max (10.0, max_tempo - min_tempo));
}
}
}
void
Editor::tempo_map_changed ()
{
PropertyChange pc;
if (!_session) {
return;
}
TempoMap::use()->apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
compute_bbt_ruler_scale (_leftmost_sample, _leftmost_sample + current_page_samples());
update_tempo_based_rulers ();
maybe_draw_grid_lines ();
}
void
Editor::redisplay_grid (bool immediate_redraw)
{
if (!_session) {
return;
}
if (immediate_redraw) {
update_tempo_based_rulers ();
update_grid();
} else {
Glib::signal_idle().connect (sigc::bind_return (sigc::bind (sigc::mem_fun (*this, &Editor::redisplay_grid), true), false));
}
}
void
Editor::tempo_curve_selected (Temporal::TempoPoint* ts, bool yn)
{
if (ts == 0) {
return;
}
for (Curves::iterator x = tempo_curves.begin(); x != tempo_curves.end(); ++x) {
if (&(*x)->tempo() == ts) {
if (yn) {
(*x)->set_color_rgba (UIConfiguration::instance().color ("location marker"));
} else {
(*x)->set_color_rgba (UIConfiguration::instance().color ("tempo curve"));
}
break;
}
}
}
/* computes a grid starting a beat before and ending a beat after leftmost and rightmost respectively */
void
Editor::compute_current_bbt_points (Temporal::TempoMapPoints& grid, samplepos_t leftmost, samplepos_t rightmost)
{
if (!_session) {
return;
}
/* prevent negative values of leftmost from creeping into tempomap
*/
const Beats lower_beat = max (Beats (), TempoMap::use()->quarters_at_sample (leftmost)).round_down_to_beat() - Beats (1, 0);
const samplecnt_t sr (_session->sample_rate());
TempoMap::SharedPtr tmap (TempoMap::use());
switch (bbt_ruler_scale) {
case bbt_show_quarters:
case bbt_show_eighths:
case bbt_show_sixteenths:
case bbt_show_thirtyseconds:
case bbt_show_sixtyfourths:
case bbt_show_onetwentyeighths:
cout << "GG " << leftmost << " .. " << rightmost << " 0\n";
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 0);
break;
case bbt_show_1:
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 1);
break;
case bbt_show_4:
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 4);
break;
case bbt_show_16:
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 16);
break;
case bbt_show_64:
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 64);
break;
default:
/* bbt_show_many */
tmap->get_grid (grid, max (tmap->superclock_at (lower_beat), (superclock_t) 0), samples_to_superclock (rightmost, sr), 128);
break;
}
}
void
Editor::hide_grid_lines ()
{
if (grid_lines) {
grid_lines->hide();
}
}
void
Editor::maybe_draw_grid_lines ()
{
if ( _session == 0 ) {
return;
}
if (grid_lines == 0) {
grid_lines = new GridLines (time_line_group, ArdourCanvas::LineSet::Vertical);
}
grid_marks.clear();
samplepos_t rightmost_sample = _leftmost_sample + current_page_samples();
if ( grid_musical() ) {
metric_get_bbt (grid_marks, _leftmost_sample, rightmost_sample, 12);
} else if (_grid_type== GridTypeTimecode) {
metric_get_timecode (grid_marks, _leftmost_sample, rightmost_sample, 12);
} else if (_grid_type == GridTypeCDFrame) {
metric_get_minsec (grid_marks, _leftmost_sample, rightmost_sample, 12);
} else if (_grid_type == GridTypeMinSec) {
metric_get_minsec (grid_marks, _leftmost_sample, rightmost_sample, 12);
}
grid_lines->draw ( grid_marks );
grid_lines->show();
}
void
Editor::mouse_add_new_tempo_event (timepos_t pos)
{
if (_session == 0) {
return;
}
if (pos.beats() > Beats()) {
begin_reversible_command (_("add tempo mark"));
TempoMap::SharedPtr map (TempoMap::write_copy());
XMLNode &before = map->get_state();
/* add music-locked ramped (?) tempo using the bpm/note type at sample*/
map->set_tempo (map->tempo_at (pos), pos);
XMLNode &after = map->get_state();
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
commit_reversible_command ();
TempoMap::update (map);
}
//map.dump (cerr);
}
void
Editor::mouse_add_new_meter_event (timepos_t pos)
{
if (_session == 0) {
return;
}
MeterDialog meter_dialog (TempoMap::use(), pos, _("add"));
switch (meter_dialog.run ()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
TempoMap::SharedPtr map (TempoMap::write_copy());
double bpb = meter_dialog.get_bpb ();
bpb = max (1.0, bpb); // XXX is this a reasonable limit?
double note_type = meter_dialog.get_note_type ();
Temporal::BBT_Time requested;
meter_dialog.get_bbt_time (requested);
begin_reversible_command (_("add meter mark"));
XMLNode &before = map->get_state();
if (map->time_domain() == BeatTime) {
pos = timepos_t (map->quarters_at (requested));
} else {
pos = timepos_t (map->sample_at (requested, _session->sample_rate()));
}
map->set_meter (Meter (bpb, note_type), pos);
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &map->get_state()));
commit_reversible_command ();
TempoMap::update (map);
//map.dump (cerr);
}
void
Editor::remove_tempo_marker (ArdourCanvas::Item* item)
{
ArdourMarker* marker;
TempoMarker* tempo_marker;
if ((marker = reinterpret_cast<ArdourMarker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
abort(); /*NOTREACHED*/
}
if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
abort(); /*NOTREACHED*/
}
if (!tempo_marker->tempo().locked_to_meter() && tempo_marker->tempo().active()) {
Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_tempo_marker), &tempo_marker->tempo()));
}
}
void
Editor::edit_meter_section (Temporal::MeterPoint& section)
{
MeterDialog meter_dialog (section, _("done"));
switch (meter_dialog.run()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpb = meter_dialog.get_bpb ();
bpb = max (1.0, bpb); // XXX is this a reasonable limit?
double const note_type = meter_dialog.get_note_type ();
const Meter meter (bpb, note_type);
Temporal::BBT_Time when;
meter_dialog.get_bbt_time (when);
TempoMap::SharedPtr tmap (TempoMap::write_copy());
begin_reversible_command (_("replace meter mark"));
XMLNode &before = tmap->get_state();
tmap->set_meter (meter, when);
XMLNode &after = tmap->get_state();
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
commit_reversible_command ();
TempoMap::update (tmap);
}
void
Editor::edit_tempo_section (TempoPoint& section)
{
TempoDialog tempo_dialog (TempoMap::use(), section, _("done"));
switch (tempo_dialog.run ()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpm = tempo_dialog.get_bpm ();
double end_bpm = tempo_dialog.get_end_bpm ();
int nt = tempo_dialog.get_note_type ();
bpm = max (0.01, bpm);
const Tempo tempo (bpm, end_bpm, nt);
TempoMap::SharedPtr tmap (TempoMap::write_copy());
Temporal::BBT_Time when;
tempo_dialog.get_bbt_time (when);
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = tmap->get_state();
tmap->set_tempo (tempo, when);
XMLNode &after = tmap->get_state();
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
commit_reversible_command ();
TempoMap::update (tmap);
}
void
Editor::edit_tempo_marker (TempoMarker& tm)
{
edit_tempo_section (tm.tempo());
}
void
Editor::edit_meter_marker (MeterMarker& mm)
{
edit_meter_section (mm.meter());
}
gint
Editor::real_remove_tempo_marker (TempoPoint *section)
{
begin_reversible_command (_("remove tempo mark"));
TempoMap::SharedPtr tmap (TempoMap::write_copy());
XMLNode &before = tmap->get_state();
tmap->remove_tempo (*section);
XMLNode &after = tmap->get_state();
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
commit_reversible_command ();
TempoMap::update (tmap);
return FALSE;
}
void
Editor::remove_meter_marker (ArdourCanvas::Item* item)
{
ArdourMarker* marker;
MeterMarker* meter_marker;
if ((marker = reinterpret_cast<ArdourMarker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: meter marker canvas item has no marker object pointer!") << endmsg;
abort(); /*NOTREACHED*/
}
if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
abort(); /*NOTREACHED*/
}
if (!meter_marker->meter().map().is_initial(meter_marker->meter())) {
Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
}
}
gint
Editor::real_remove_meter_marker (Temporal::MeterPoint *section)
{
begin_reversible_command (_("remove tempo mark"));
TempoMap::SharedPtr tmap (TempoMap::write_copy());
XMLNode &before = tmap->get_state();
tmap->remove_meter (*section);
XMLNode &after = tmap->get_state();
_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
commit_reversible_command ();
TempoMap::update (tmap);
return FALSE;
}