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livetrax/gtk2_ardour/tempo_dialog.cc

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/*
Copyright (C) 2000-2007 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 <cstdio> // for snprintf, grrr
#include <gtkmm/stock.h>
#include "gtkmm2ext/utils.h"
#include "ardour_ui.h"
#include "tempo_dialog.h"
#include "i18n.h"
using namespace std;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace ARDOUR;
using namespace PBD;
TempoDialog::TempoDialog (TempoMap& map, framepos_t frame, const string&)
: ArdourDialog (_("New Tempo"))
, bpm_adjustment (60.0, 1.0, 999.9, 0.1, 1.0)
, bpm_spinner (bpm_adjustment)
, when_bar_label (_("bar:"), ALIGN_LEFT, ALIGN_CENTER)
, when_beat_label (_("beat:"), ALIGN_LEFT, ALIGN_CENTER)
, pulse_selector_label (_("Pulse note"), ALIGN_LEFT, ALIGN_CENTER)
, tap_tempo_button (_("Tap tempo"))
{
Timecode::BBT_Time when;
Tempo tempo (map.tempo_at (frame));
map.bbt_time (frame, when);
init (when, tempo.beats_per_minute(), tempo.note_type(), true);
}
TempoDialog::TempoDialog (TempoSection& section, const string&)
: ArdourDialog (_("Edit Tempo"))
, bpm_adjustment (60.0, 1.0, 999.9, 0.1, 1.0)
, bpm_spinner (bpm_adjustment)
, when_bar_label (_("bar:"), ALIGN_LEFT, ALIGN_CENTER)
, when_beat_label (_("beat:"), ALIGN_LEFT, ALIGN_CENTER)
, pulse_selector_label (_("Pulse note"), ALIGN_LEFT, ALIGN_CENTER)
, tap_tempo_button (_("Tap tempo"))
{
init (section.start(), section.beats_per_minute(), section.note_type(), section.movable());
}
void
TempoDialog::init (const Timecode::BBT_Time& when, double bpm, double note_type, bool movable)
{
vector<string> strings;
NoteTypes::iterator x;
bpm_spinner.set_numeric (true);
bpm_spinner.set_digits (2);
bpm_spinner.set_wrap (true);
bpm_spinner.set_value (bpm);
note_types.insert (make_pair (_("whole"), 1.0));
strings.push_back (_("whole"));
note_types.insert (make_pair (_("second"), 2.0));
strings.push_back (_("second"));
note_types.insert (make_pair (_("third"), 3.0));
strings.push_back (_("third"));
note_types.insert (make_pair (_("quarter"), 4.0));
strings.push_back (_("quarter"));
note_types.insert (make_pair (_("eighth"), 8.0));
strings.push_back (_("eighth"));
note_types.insert (make_pair (_("sixteenth"), 16.0));
strings.push_back (_("sixteenth"));
note_types.insert (make_pair (_("thirty-second"), 32.0));
strings.push_back (_("thirty-second"));
note_types.insert (make_pair (_("sixty-fourth"), 64.0));
strings.push_back (_("sixty-fourth"));
note_types.insert (make_pair (_("one-hundred-twenty-eighth"), 128.0));
strings.push_back (_("one-hundred-twenty-eighth"));
set_popdown_strings (pulse_selector, strings);
for (x = note_types.begin(); x != note_types.end(); ++x) {
if (x->second == note_type) {
pulse_selector.set_active_text (x->first);
break;
}
}
if (x == note_types.end()) {
pulse_selector.set_active_text (strings[3]); // "quarter"
}
Table* table;
if (ARDOUR_UI::config()->get_allow_non_quarter_pulse()) {
table = manage (new Table (5, 5));
} else {
table = manage (new Table (5, 4));
}
table->set_spacings (6);
table->set_homogeneous (false);
int row;
Label* bpm_label = manage (new Label(_("Beats per minute:"), ALIGN_LEFT, ALIGN_CENTER));
table->attach (*bpm_label, 0, 1, 0, 1);
table->attach (bpm_spinner, 1, 5, 0, 1);
if (ARDOUR_UI::config()->get_allow_non_quarter_pulse()) {
table->attach (pulse_selector_label, 0, 1, 1, 2);
table->attach (pulse_selector, 1, 5, 1, 2);
row = 2;
} else {
row = 1;
}
char buf[64];
snprintf (buf, sizeof (buf), "%" PRIu32, when.bars);
when_bar_entry.set_text (buf);
snprintf (buf, sizeof (buf), "%" PRIu32, when.beats);
when_beat_entry.set_text (buf);
if (movable) {
when_bar_entry.set_width_chars(4);
when_beat_entry.set_width_chars (4);
when_bar_label.set_name ("MetricLabel");
when_beat_label.set_name ("MetricLabel");
table->attach (when_bar_label, 1, 2, row, row+1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
table->attach (when_bar_entry, 2, 3, row, row+1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
table->attach (when_beat_label, 3, 4, row, row+1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
table->attach (when_beat_entry, 4, 5, row, row+1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
Label* when_label = manage (new Label(_("Tempo begins at"), ALIGN_LEFT, ALIGN_CENTER));
table->attach (*when_label, 0, 1, row, row+1);
}
get_vbox()->set_border_width (12);
get_vbox()->pack_end (*table);
table->show_all ();
add_button (Stock::CANCEL, RESPONSE_CANCEL);
add_button (Stock::APPLY, RESPONSE_ACCEPT);
set_response_sensitive (RESPONSE_ACCEPT, true);
set_default_response (RESPONSE_ACCEPT);
bpm_spinner.show ();
tap_tempo_button.show ();
get_vbox()->pack_end (tap_tempo_button);
bpm_spinner.grab_focus ();
set_name ("MetricDialog");
bpm_spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &TempoDialog::response), RESPONSE_ACCEPT));
bpm_spinner.signal_button_press_event().connect (sigc::mem_fun (*this, &TempoDialog::bpm_button_press), false);
bpm_spinner.signal_button_release_event().connect (sigc::mem_fun (*this, &TempoDialog::bpm_button_release), false);
bpm_spinner.signal_changed().connect (sigc::mem_fun (*this, &TempoDialog::bpm_changed));
when_bar_entry.signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &TempoDialog::response), RESPONSE_ACCEPT));
when_bar_entry.signal_key_release_event().connect (sigc::mem_fun (*this, &TempoDialog::entry_key_release), false);
when_beat_entry.signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &TempoDialog::response), RESPONSE_ACCEPT));
when_beat_entry.signal_key_release_event().connect (sigc::mem_fun (*this, &TempoDialog::entry_key_release), false);
pulse_selector.signal_changed().connect (sigc::mem_fun (*this, &TempoDialog::pulse_change));
tap_tempo_button.signal_clicked().connect (sigc::mem_fun (*this, &TempoDialog::tap_tempo));
}
bool
TempoDialog::is_user_input_valid() const
{
return (when_beat_entry.get_text() != "")
&& (when_bar_entry.get_text() != "")
&& (when_bar_entry.get_text() != "0");
}
void
TempoDialog::bpm_changed ()
{
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
}
bool
TempoDialog::bpm_button_press (GdkEventButton*)
{
return false;
}
bool
TempoDialog::bpm_button_release (GdkEventButton*)
{
/* the value has been modified, accept should work now */
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
return false;
}
bool
TempoDialog::entry_key_release (GdkEventKey*)
{
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
return false;
}
double
TempoDialog::get_bpm ()
{
return bpm_spinner.get_value ();
}
bool
TempoDialog::get_bbt_time (Timecode::BBT_Time& requested)
{
if (sscanf (when_bar_entry.get_text().c_str(), "%" PRIu32, &requested.bars) != 1) {
return false;
}
if (sscanf (when_beat_entry.get_text().c_str(), "%" PRIu32, &requested.beats) != 1) {
return false;
}
requested.ticks = 0;
return true;
}
double
TempoDialog::get_note_type ()
{
NoteTypes::iterator x = note_types.find (pulse_selector.get_active_text());
if (x == note_types.end()) {
error << string_compose(_("incomprehensible pulse note type (%1)"), pulse_selector.get_active_text()) << endmsg;
return 0;
}
return x->second;
}
void
TempoDialog::pulse_change ()
{
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
}
void
TempoDialog::tap_tempo ()
{
gint64 now;
now = g_get_monotonic_time (); // microseconds
if (last_tap > 0) {
double interval, bpm;
static const double decay = 0.5;
interval = (now - last_tap) * 1.0e-6;
if (interval <= 6.0) {
// >= 10 bpm, say
if (average_interval > 0) {
average_interval = interval * decay
+ average_interval * (1.0-decay);
} else {
average_interval = interval;
}
bpm = 60.0 / average_interval;
bpm_spinner.set_value (bpm);
} else {
average_interval = 0;
}
} else {
average_interval = 0;
}
last_tap = now;
}
MeterDialog::MeterDialog (TempoMap& map, framepos_t frame, const string&)
: ArdourDialog (_("New Meter"))
{
Timecode::BBT_Time when;
frame = map.round_to_bar(frame, RoundNearest);
Meter meter (map.meter_at(frame));
map.bbt_time (frame, when);
init (when, meter.divisions_per_bar(), meter.note_divisor(), true);
}
MeterDialog::MeterDialog (MeterSection& section, const string&)
: ArdourDialog (_("Edit Meter"))
{
init (section.start(), section.divisions_per_bar(), section.note_divisor(), section.movable());
}
void
MeterDialog::init (const Timecode::BBT_Time& when, double bpb, double divisor, bool movable)
{
char buf[64];
vector<string> strings;
NoteTypes::iterator x;
snprintf (buf, sizeof (buf), "%.2f", bpb);
bpb_entry.set_text (buf);
bpb_entry.select_region (0, -1);
note_types.insert (make_pair (_("whole"), 1.0));
strings.push_back (_("whole"));
note_types.insert (make_pair (_("second"), 2.0));
strings.push_back (_("second"));
note_types.insert (make_pair (_("third"), 3.0));
strings.push_back (_("third"));
note_types.insert (make_pair (_("quarter"), 4.0));
strings.push_back (_("quarter"));
note_types.insert (make_pair (_("eighth"), 8.0));
strings.push_back (_("eighth"));
note_types.insert (make_pair (_("sixteenth"), 16.0));
strings.push_back (_("sixteenth"));
note_types.insert (make_pair (_("thirty-second"), 32.0));
strings.push_back (_("thirty-second"));
note_types.insert (make_pair (_("sixty-fourth"), 64.0));
strings.push_back (_("sixty-fourth"));
note_types.insert (make_pair (_("one-hundred-twenty-eighth"), 128.0));
strings.push_back (_("one-hundred-twenty-eighth"));
set_popdown_strings (note_type, strings);
for (x = note_types.begin(); x != note_types.end(); ++x) {
if (x->second == divisor) {
note_type.set_active_text (x->first);
break;
}
}
if (x == note_types.end()) {
note_type.set_active_text (strings[3]); // "quarter"
}
Label* note_label = manage (new Label (_("Note value:"), ALIGN_LEFT, ALIGN_CENTER));
Label* bpb_label = manage (new Label (_("Beats per bar:"), ALIGN_LEFT, ALIGN_CENTER));
Table* table = manage (new Table (3, 2));
table->set_spacings (6);
table->attach (*bpb_label, 0, 1, 0, 1, FILL|EXPAND, FILL|EXPAND);
table->attach (bpb_entry, 1, 2, 0, 1, FILL|EXPAND, FILL|EXPAND);
table->attach (*note_label, 0, 1, 1, 2, FILL|EXPAND, FILL|EXPAND);
table->attach (note_type, 1, 2, 1, 2, FILL|EXPAND, SHRINK);
snprintf (buf, sizeof (buf), "%" PRIu32, when.bars);
when_bar_entry.set_text (buf);
if (movable) {
Label* when_label = manage (new Label(_("Meter begins at bar:"), ALIGN_LEFT, ALIGN_CENTER));
table->attach (*when_label, 0, 1, 2, 3, FILL | EXPAND, FILL | EXPAND);
table->attach (when_bar_entry, 1, 2, 2, 3, FILL | EXPAND, FILL | EXPAND);
}
get_vbox()->set_border_width (12);
get_vbox()->pack_start (*table, false, false);
add_button (Stock::CANCEL, RESPONSE_CANCEL);
add_button (Stock::APPLY, RESPONSE_ACCEPT);
set_response_sensitive (RESPONSE_ACCEPT, true);
set_default_response (RESPONSE_ACCEPT);
get_vbox()->show_all ();
set_name ("MetricDialog");
bpb_entry.signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &MeterDialog::response), RESPONSE_ACCEPT));
bpb_entry.signal_key_press_event().connect (sigc::mem_fun (*this, &MeterDialog::entry_key_press), false);
bpb_entry.signal_key_release_event().connect (sigc::mem_fun (*this, &MeterDialog::entry_key_release));
when_bar_entry.signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &MeterDialog::response), RESPONSE_ACCEPT));
when_bar_entry.signal_key_press_event().connect (sigc::mem_fun (*this, &MeterDialog::entry_key_press), false);
when_bar_entry.signal_key_release_event().connect (sigc::mem_fun (*this, &MeterDialog::entry_key_release));
note_type.signal_changed().connect (sigc::mem_fun (*this, &MeterDialog::note_type_change));
}
bool
MeterDialog::is_user_input_valid() const
{
return (when_bar_entry.get_text() != "")
&& (when_bar_entry.get_text() != "0")
&& (bpb_entry.get_text() != "");
}
bool
MeterDialog::entry_key_press (GdkEventKey* ev)
{
switch (ev->keyval) {
case GDK_0:
case GDK_1:
case GDK_2:
case GDK_3:
case GDK_4:
case GDK_5:
case GDK_6:
case GDK_7:
case GDK_8:
case GDK_9:
case GDK_KP_0:
case GDK_KP_1:
case GDK_KP_2:
case GDK_KP_3:
case GDK_KP_4:
case GDK_KP_5:
case GDK_KP_6:
case GDK_KP_7:
case GDK_KP_8:
case GDK_KP_9:
case GDK_period:
case GDK_comma:
case GDK_KP_Delete:
case GDK_KP_Enter:
case GDK_Delete:
case GDK_BackSpace:
case GDK_Escape:
case GDK_Return:
case GDK_Home:
case GDK_End:
case GDK_Left:
case GDK_Right:
case GDK_Num_Lock:
case GDK_Tab:
return FALSE;
default:
break;
}
return TRUE;
}
bool
MeterDialog::entry_key_release (GdkEventKey*)
{
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
return false;
}
void
MeterDialog::note_type_change ()
{
set_response_sensitive (RESPONSE_ACCEPT, is_user_input_valid());
}
double
MeterDialog::get_bpb ()
{
double bpb = 0;
if (sscanf (bpb_entry.get_text().c_str(), "%lf", &bpb) != 1) {
return 0;
}
return bpb;
}
double
MeterDialog::get_note_type ()
{
NoteTypes::iterator x = note_types.find (note_type.get_active_text());
if (x == note_types.end()) {
error << string_compose(_("incomprehensible meter note type (%1)"), note_type.get_active_text()) << endmsg;
return 0;
}
return x->second;
}
bool
MeterDialog::get_bbt_time (Timecode::BBT_Time& requested)
{
if (sscanf (when_bar_entry.get_text().c_str(), "%" PRIu32, &requested.bars) != 1) {
return false;
}
requested.beats = 1;
requested.ticks = 0;
return true;
}