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livetrax/gtk2_ardour/editor_tempodisplay.cc
2016-05-27 23:38:12 +10:00

449 lines
13 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 "tempo_lines.h"
#include "ui_config.h"
#include "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 ();
}
void
Editor::draw_metric_marks (const Metrics& metrics)
{
const MeterSection *ms;
const TempoSection *ts;
char buf[64];
remove_metric_marks ();
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
snprintf (buf, sizeof(buf), "%g/%g", ms->divisions_per_bar(), ms->note_divisor ());
metric_marks.push_back (new MeterMarker (*this, *meter_group, UIConfiguration::instance().color ("meter marker"), buf,
*(const_cast<MeterSection*>(ms))));
} else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
if (UIConfiguration::instance().get_allow_non_quarter_pulse()) {
snprintf (buf, sizeof (buf), "%.2f/%.0f", ts->beats_per_minute(), ts->note_type());
} else {
snprintf (buf, sizeof (buf), "%.2f", ts->beats_per_minute());
}
metric_marks.push_back (new TempoMarker (*this, *tempo_group, UIConfiguration::instance().color ("tempo marker"), buf,
*(const_cast<TempoSection*>(ts))));
}
}
}
void
Editor::tempo_map_changed (const PropertyChange& /*ignored*/)
{
if (!_session) {
return;
}
ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed, ignored);
if (tempo_lines) {
tempo_lines->tempo_map_changed();
}
std::vector<TempoMap::BBTPoint> grid;
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
_session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
draw_measures (grid);
update_tempo_based_rulers (grid);
}
void
Editor::marker_position_changed ()
{
if (!_session) {
return;
}
ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed);
if (tempo_lines) {
tempo_lines->tempo_map_changed();
}
TempoMarker* tempo_marker;
MeterMarker* meter_marker;
const TempoSection *ts;
const MeterSection *ms;
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
if ((ts = &tempo_marker->tempo()) != 0) {
tempo_marker->set_position (ts->frame ());
}
}
if ((meter_marker = dynamic_cast<MeterMarker*> (*x)) != 0) {
if ((ms = &meter_marker->meter()) != 0) {
meter_marker->set_position (ms->frame ());
}
}
}
std::vector<TempoMap::BBTPoint> grid;
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
draw_measures (grid);
update_tempo_based_rulers (grid);
}
void
Editor::redisplay_tempo (bool immediate_redraw)
{
if (!_session) {
return;
}
if (immediate_redraw) {
std::vector<TempoMap::BBTPoint> grid;
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
draw_measures (grid);
update_tempo_based_rulers (grid); // redraw rulers and measure lines
} else {
Glib::signal_idle().connect (sigc::bind_return (sigc::bind (sigc::mem_fun (*this, &Editor::redisplay_tempo), true), false));
}
}
/* 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, framepos_t leftmost, framepos_t rightmost)
{
if (!_session) {
return;
}
/* prevent negative values of leftmost from creeping into tempomap
*/
_session->tempo_map().get_grid (grid, max (leftmost, (framepos_t) 0), rightmost);
}
void
Editor::hide_measures ()
{
if (tempo_lines) {
tempo_lines->hide();
}
}
void
Editor::draw_measures (std::vector<ARDOUR::TempoMap::BBTPoint>& grid)
{
if (_session == 0 || _show_measures == false || distance (grid.begin(), grid.end()) == 0) {
return;
}
if (tempo_lines == 0) {
tempo_lines = new TempoLines (time_line_group, ArdourCanvas::LineSet::Vertical);
}
const unsigned divisions = get_grid_beat_divisions(leftmost_frame);
tempo_lines->draw (grid, divisions, leftmost_frame, _session->frame_rate());
}
void
Editor::mouse_add_new_tempo_event (framepos_t frame)
{
if (_session == 0) {
return;
}
TempoMap& map(_session->tempo_map());
TempoDialog tempo_dialog (map, frame, _("add"));
//this causes compiz to display no border.
//tempo_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &tempo_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
switch (tempo_dialog.run()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpm = 0;
Timecode::BBT_Time requested;
bpm = tempo_dialog.get_bpm ();
double nt = tempo_dialog.get_note_type();
bpm = max (0.01, bpm);
tempo_dialog.get_bbt_time (requested);
begin_reversible_command (_("add tempo mark"));
XMLNode &before = map.get_state();
if (tempo_dialog.get_lock_style() == MusicTime) {
map.add_tempo (Tempo (bpm,nt), map.pulse_at_beat (map.bbt_to_beats (requested)), tempo_dialog.get_tempo_type());
} else {
map.add_tempo (Tempo (bpm,nt), frame, tempo_dialog.get_tempo_type());
}
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 (framepos_t frame)
{
if (_session == 0) {
return;
}
TempoMap& map(_session->tempo_map());
MeterDialog meter_dialog (map, frame, _("add"));
//this causes compiz to display no border..
//meter_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &meter_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
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);
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), map.bbt_to_beats (requested), requested);
} else {
map.add_meter (Meter (bpb, note_type), frame, meter_dialog.get_lock_style());
}
_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().movable()) {
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 ();
Timecode::BBT_Time when;
meter_dialog.get_bbt_time(when);
framepos_t const frame = _session->tempo_map().frame_at_beat (_session->tempo_map().bbt_to_beats (when));
begin_reversible_command (_("replace meter mark"));
XMLNode &before = _session->tempo_map().get_state();
section->set_position_lock_style (meter_dialog.get_lock_style());
if (meter_dialog.get_lock_style() == MusicTime) {
_session->tempo_map().replace_meter (*section, Meter (bpb, note_type), when);
} else {
_session->tempo_map().replace_meter (*section, Meter (bpb, note_type), frame);
}
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 nt = tempo_dialog.get_note_type ();
Timecode::BBT_Time when;
tempo_dialog.get_bbt_time(when);
double const beat = _session->tempo_map().bbt_to_beats (when);
bpm = max (0.01, bpm);
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = _session->tempo_map().get_state();
if (tempo_dialog.get_lock_style() == MusicTime) {
section->set_position_lock_style (MusicTime);
framepos_t const f = _session->tempo_map().predict_tempo_frame (section, Tempo (bpm, nt), when);
double const p = _session->tempo_map().predict_tempo_pulse (section, Tempo (bpm, nt), f);
_session->tempo_map().replace_tempo (*section, Tempo (bpm, nt), p, tempo_dialog.get_tempo_type());
} else {
framepos_t const f = _session->tempo_map().predict_tempo_frame (section, Tempo (bpm, nt), when);
_session->tempo_map().replace_tempo (*section, Tempo (bpm, nt), f, tempo_dialog.get_tempo_type());
}
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().movable()) {
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;
}