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livetrax/gtk2_ardour/editor_tempodisplay.cc
Ben Loftis dc61256466 new_grid: Rewrite of Snap and Grid. (squashed commit)
Separate Snap from Grid.  Lots of naming changes.
Multiple simultaneous snap options allowed. Grid is one of the possible Snap options.
Grid uses the same data as the rulers.  Replace complicated tempo_lines with simple grid_lines.
The Grid is zoom-scale-sensitive along with the rulers.  If you are zoomed out, grid becomes coarser.
2018-02-09 09:59:39 -06:00

611 lines
17 KiB
C++

/*
Copyright (C) 2002 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.
*/
#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;
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().sample() < b->tempo().sample();
}
};
void
Editor::draw_metric_marks (const Metrics& metrics)
{
char buf[64];
TempoSection* prev_ts = 0;
double max_tempo = 0.0;
double min_tempo = DBL_MAX;
remove_metric_marks (); // also clears tempo curves
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
const MeterSection *ms;
TempoSection *ts;
if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
snprintf (buf, sizeof(buf), "%g/%g", ms->divisions_per_bar(), ms->note_divisor ());
if (ms->position_lock_style() == MusicTime) {
metric_marks.push_back (new MeterMarker (*this, *meter_group, UIConfiguration::instance().color ("meter marker music"), buf,
*(const_cast<MeterSection*>(ms))));
} else {
metric_marks.push_back (new MeterMarker (*this, *meter_group, UIConfiguration::instance().color ("meter marker"), buf,
*(const_cast<MeterSection*>(ms))));
}
} else if ((ts = dynamic_cast<TempoSection*>(*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,
*(const_cast<TempoSection*>(ts)), ts->sample(), false));
const std::string tname (X_(""));
if (ts->position_lock_style() == MusicTime) {
metric_marks.push_back (new TempoMarker (*this, *tempo_group, UIConfiguration::instance().color ("tempo marker music"), tname,
*(const_cast<TempoSection*>(ts))));
} else {
metric_marks.push_back (new TempoMarker (*this, *tempo_group, UIConfiguration::instance().color ("tempo marker"), tname,
*(const_cast<TempoSection*>(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(), (*tmp)->tempo().sample());
} else {
(*x)->set_position ((*x)->tempo().sample(), 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 (const PropertyChange& /*ignored*/)
{
if (!_session) {
return;
}
ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed, ignored);
compute_bbt_ruler_scale (_leftmost_sample, _leftmost_sample + current_page_samples());
_session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
update_tempo_based_rulers ();
maybe_draw_grid_lines ();
}
void
Editor::tempometric_position_changed (const PropertyChange& /*ignored*/)
{
if (!_session) {
return;
}
ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed);
TempoSection* prev_ts = 0;
double max_tempo = 0.0;
double min_tempo = DBL_MAX;
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
TempoMarker* tempo_marker;
MeterMarker* meter_marker;
TempoSection *ts;
const MeterSection *ms;
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
if ((ts = &tempo_marker->tempo()) != 0) {
tempo_marker->set_position (ts->sample ());
if (prev_ts && abs (prev_ts->end_note_types_per_minute() - ts->note_types_per_minute()) < 1.0) {
tempo_marker->set_points_color (UIConfiguration::instance().color ("tempo marker music"));
} else {
tempo_marker->set_points_color (UIConfiguration::instance().color ("tempo marker"));
}
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());
prev_ts = ts;
}
}
if ((meter_marker = dynamic_cast<MeterMarker*> (*x)) != 0) {
if ((ms = &meter_marker->meter()) != 0) {
meter_marker->set_position (ms->sample ());
}
}
}
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(), (*tmp)->tempo().sample());
} else {
(*x)->set_position ((*x)->tempo().sample(), 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 (max_tempo - min_tempo, 10.0));
}
}
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 (TempoSection* 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 (std::vector<TempoMap::BBTPoint>& grid, samplepos_t leftmost, samplepos_t rightmost)
{
if (!_session) {
return;
}
/* prevent negative values of leftmost from creeping into tempomap
*/
const double lower_beat = floor (max (0.0, _session->tempo_map().beat_at_sample (leftmost))) - 1.0;
switch (bbt_ruler_scale) {
case bbt_show_beats:
case bbt_show_ticks:
case bbt_show_ticks_detail:
case bbt_show_ticks_super_detail:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost);
break;
case bbt_show_1:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost, 1);
break;
case bbt_show_4:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost, 4);
break;
case bbt_show_16:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost, 16);
break;
case bbt_show_64:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost, 64);
break;
default:
/* bbt_show_many */
_session->tempo_map().get_grid (grid, max (_session->tempo_map().sample_at_beat (lower_beat), (samplepos_t) 0), rightmost, 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== GridTypeSmpte) {
metric_get_timecode (grid_marks, _leftmost_sample, rightmost_sample, 12);
} else if (_grid_type == GridTypeSamples) {
metric_get_samples (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 (samplepos_t sample)
{
if (_session == 0) {
return;
}
TempoMap& map(_session->tempo_map());
begin_reversible_command (_("add tempo mark"));
const double pulse = map.exact_qn_at_sample (sample, get_grid_music_divisions (0)) / 4.0;
if (pulse > 0.0) {
XMLNode &before = map.get_state();
/* add music-locked ramped (?) tempo using the bpm/note type at sample*/
map.add_tempo (map.tempo_at_sample (sample), pulse, 0, MusicTime);
XMLNode &after = map.get_state();
_session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
commit_reversible_command ();
}
//map.dump (cerr);
}
void
Editor::mouse_add_new_meter_event (samplepos_t sample)
{
if (_session == 0) {
return;
}
TempoMap& map(_session->tempo_map());
MeterDialog meter_dialog (map, sample, _("add"));
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 note_type = meter_dialog.get_note_type ();
Timecode::BBT_Time requested;
meter_dialog.get_bbt_time (requested);
const double al_sample = map.sample_at_bbt (requested);
begin_reversible_command (_("add meter mark"));
XMLNode &before = map.get_state();
if (meter_dialog.get_lock_style() == MusicTime) {
map.add_meter (Meter (bpb, note_type), requested, 0, MusicTime);
} else {
map.add_meter (Meter (bpb, note_type), requested, al_sample, AudioTime);
}
_session->add_command(new MementoCommand<TempoMap>(map, &before, &map.get_state()));
commit_reversible_command ();
//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 (MeterSection* section)
{
MeterDialog meter_dialog (_session->tempo_map(), *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);
Timecode::BBT_Time when;
meter_dialog.get_bbt_time (when);
const samplepos_t sample = _session->tempo_map().sample_at_bbt (when);
const PositionLockStyle pls = (meter_dialog.get_lock_style() == AudioTime) ? AudioTime : MusicTime;
begin_reversible_command (_("replace meter mark"));
XMLNode &before = _session->tempo_map().get_state();
_session->tempo_map().replace_meter (*section, meter, when, sample, pls);
XMLNode &after = _session->tempo_map().get_state();
_session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
commit_reversible_command ();
}
void
Editor::edit_tempo_section (TempoSection* section)
{
TempoDialog tempo_dialog (_session->tempo_map(), *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 ();
double nt = tempo_dialog.get_note_type ();
bpm = max (0.01, bpm);
const Tempo tempo (bpm, nt, end_bpm);
Timecode::BBT_Time when;
tempo_dialog.get_bbt_time (when);
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = _session->tempo_map().get_state();
if (tempo_dialog.get_lock_style() == AudioTime) {
samplepos_t const f = _session->tempo_map().predict_tempo_position (section, when).second;
_session->tempo_map().replace_tempo (*section, tempo, 0.0, f, AudioTime);
} else {
double const p = _session->tempo_map().predict_tempo_position (section, when).first;
_session->tempo_map().replace_tempo (*section, tempo, p, 0, MusicTime);
}
XMLNode &after = _session->tempo_map().get_state();
_session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
commit_reversible_command ();
}
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 (TempoSection *section)
{
begin_reversible_command (_("remove tempo mark"));
XMLNode &before = _session->tempo_map().get_state();
_session->tempo_map().remove_tempo (*section, true);
XMLNode &after = _session->tempo_map().get_state();
_session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
commit_reversible_command ();
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().initial()) {
Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
}
}
gint
Editor::real_remove_meter_marker (MeterSection *section)
{
begin_reversible_command (_("remove tempo mark"));
XMLNode &before = _session->tempo_map().get_state();
_session->tempo_map().remove_meter (*section, true);
XMLNode &after = _session->tempo_map().get_state();
_session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
commit_reversible_command ();
return FALSE;
}