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livetrax/gtk2_ardour/editor_tempodisplay.cc

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/*
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 "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
Large nasty commit in the form of a 5000 line patch chock-full of completely unecessary changes. (Sorry, doing a "sprint" based thing, this is the end of the first one) Achieved MIDI track and bus creation, associated Jack port and diskstream creation, and minimal GUI stuff for creating them. Should be set to start work on actually recording and playing midi to/from disk now. Relevant (significant) changes: - Creation of a Buffer class. Base class is type agnostic so things can point to a buffer but not care what kind it is (otherwise it'd be a template). Derived into AudioBuffer and MidiBuffer, with a type tag because checking type is necessary in parts of the code where dynamic_cast wouldn't be wise. Originally I considered this a hack, but passing around a type proved to be a very good solution to all the other problems (below). There is a 1:1 mapping between jack port data types and ardour Buffer types (with a conversion function), but that's easily removed if it ever becomes necessary. Having the type scoped in the Buffer class is maybe not the best spot for it, but whatever (this is proof of concept kinda stuff right now...) - IO now has a "default" port type (passed to the constructor and stored as a member), used by ensure_io (and similar) to create n ports. IO::register_***_port has a type argument that defaults to the default type if not passed. Rationale: previous IO API is identical, no changes needed to existing code, but path is paved for multiple port types in one IO, which we will need for eg synth plugin inserts, among other things. This is not quite ideal (best would be to only have the two port register functions and have them take a type), but the alternative is a lot of work (namely destroying the 'ensure' functions and everything that uses them) for very little gain. (I am convinced after quite a few tries at the whiteboard that subclassing IO in any way is not a feasible option, look at it's inheritance diagram in Doxygen and you can see why) - AudioEngine::register_audio_input_port is now register_input_port and takes a type argument. Ditto for output. - (Most significant change) AudioDiskstream abstracted into Distream, and sibling MidiDiskstream created. Very much still a work in progress, but Diskstream is there to switch references over to (most already are), which is the important part. It is still unclear what the MIDI diskstream's relation to channels is, but I'm pretty sure they will be single channel only (so SMF Type 0) since noone can come up with a reason otherwise. - MidiTrack creation. Same thing as AudioTrack but with a different default type basically. No big deal here. - Random cleanups and variable renamings etc. because I have OCD and can't help myself. :) Known broken: Loading of sessions containing MIDI tracks. git-svn-id: svn://localhost/ardour2/branches/midi@641 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-26 12:01:34 -04:00
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 ();
}
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struct CurveComparator {
bool operator() (TempoCurve const * a, TempoCurve const * b) {
return a->tempo().frame() < b->tempo().frame();
}
};
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 ());
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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->frame(), 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;
}
}
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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().frame(), (*tmp)->tempo().frame());
} else {
(*x)->set_position ((*x)->tempo().frame(), 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);
if (tempo_lines) {
tempo_lines->tempo_map_changed(_session->tempo_map().music_origin());
}
compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples());
std::vector<TempoMap::BBTPoint> grid;
if (bbt_ruler_scale != bbt_show_many) {
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 ();
}
void
Editor::tempometric_position_changed (const PropertyChange& /*ignored*/)
{
if (!_session) {
return;
}
ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed);
if (tempo_lines) {
tempo_lines->tempo_map_changed(_session->tempo_map().music_origin());
}
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->frame ());
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->frame ());
}
}
}
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().frame(), (*tmp)->tempo().frame());
} else {
(*x)->set_position ((*x)->tempo().frame(), 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_frame, leftmost_frame + current_page_samples());
std::vector<TempoMap::BBTPoint> grid;
if (bbt_ruler_scale != bbt_show_many) {
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
}
draw_measures (grid);
update_tempo_based_rulers ();
}
void
Editor::redisplay_tempo (bool immediate_redraw)
{
if (!_session) {
return;
}
if (immediate_redraw) {
//only recalculate bbt_ruler_scale on a zoom or snap-change; not every redraw; if a case is found where this is necessary, uncomment this line.
// compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples());
std::vector<TempoMap::BBTPoint> grid;
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if (bbt_ruler_scale != bbt_show_many) {
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
}
draw_measures (grid);
update_tempo_based_rulers (); // redraw rulers and measure lines
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} else {
Glib::signal_idle().connect (sigc::bind_return (sigc::bind (sigc::mem_fun (*this, &Editor::redisplay_tempo), 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, framepos_t leftmost, framepos_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_frame (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().frame_at_beat (lower_beat), (framepos_t) 0), rightmost);
break;
case bbt_show_1:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().frame_at_beat (lower_beat), (framepos_t) 0), rightmost, 1);
break;
case bbt_show_4:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().frame_at_beat (lower_beat), (framepos_t) 0), rightmost, 4);
break;
case bbt_show_16:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().frame_at_beat (lower_beat), (framepos_t) 0), rightmost, 16);
break;
case bbt_show_64:
_session->tempo_map().get_grid (grid, max (_session->tempo_map().frame_at_beat (lower_beat), (framepos_t) 0), rightmost, 64);
break;
default:
/* bbt_show_many */
_session->tempo_map().get_grid (grid, max (_session->tempo_map().frame_at_beat (lower_beat), (framepos_t) 0), rightmost, 128);
break;
}
}
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, new BeatsFramesConverter (_session->tempo_map(), _session->tempo_map().music_origin()));
}
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());
begin_reversible_command (_("add tempo mark"));
const double pulse = map.exact_qn_at_frame (frame, 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 frame*/
map.add_tempo (map.tempo_at_frame (frame), 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 (framepos_t frame)
{
if (_session == 0) {
return;
}
TempoMap& map(_session->tempo_map());
MeterDialog meter_dialog (map, frame, _("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 beat = map.beat_at_bbt (requested);
const double al_frame = map.frame_at_beat (beat);
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), beat, requested, 0, MusicTime);
} else {
map.add_meter (Meter (bpb, note_type), beat, requested, al_frame, 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 framepos_t frame = _session->tempo_map().frame_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, frame, 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();
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if (tempo_dialog.get_lock_style() == AudioTime) {
framepos_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);
}
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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*/
}
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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;
}