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livetrax/gtk2_ardour/tempo_dialog.cc
David Robillard fe13d08874 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 16:01:34 +00:00

453 lines
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#include <cstdio> // for snprintf, grrr
#include <gtkmm/stock.h>
#include <gtkmm2ext/utils.h>
#include "tempo_dialog.h"
#include "utils.h"
#include "i18n.h"
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace ARDOUR;
using namespace PBD;
TempoDialog::TempoDialog (TempoMap& map, jack_nframes_t frame, const string & action)
: ArdourDialog ("tempo dialog"),
bpm_frame (_("Beats per minute")),
ok_button (action),
cancel_button (_("Cancel")),
when_bar_label (_("Bar")),
when_beat_label (_("Beat")),
when_table (2, 2),
when_frame (_("Location"))
{
BBT_Time when;
Tempo tempo (map.tempo_at (frame));
map.bbt_time (frame, when);
init (when, tempo.beats_per_minute(), true);
}
TempoDialog::TempoDialog (TempoSection& section, const string & action)
: ArdourDialog ("tempo dialog"),
bpm_frame (_("Beats per minute")),
ok_button (action),
cancel_button (_("Cancel")),
when_bar_label (_("Bar")),
when_beat_label (_("Beat")),
when_table (2, 2),
when_frame (_("Location"))
{
init (section.start(), section.beats_per_minute(), section.movable());
}
void
TempoDialog::init (const BBT_Time& when, double bpm, bool movable)
{
snprintf (buf, sizeof (buf), "%.2f", bpm);
bpm_entry.set_text (buf);
bpm_entry.select_region (0, -1);
hspacer1.set_border_width (5);
hspacer1.pack_start (bpm_entry, false, false);
vspacer1.set_border_width (5);
vspacer1.pack_start (hspacer1, false, false);
bpm_frame.add (vspacer1);
if (movable) {
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);
when_bar_entry.set_name ("MetricEntry");
when_beat_entry.set_name ("MetricEntry");
when_bar_label.set_name ("MetricLabel");
when_beat_label.set_name ("MetricLabel");
Gtkmm2ext::set_size_request_to_display_given_text (when_bar_entry, "999g", 5, 7);
Gtkmm2ext::set_size_request_to_display_given_text (when_beat_entry, "999g", 5, 7);
when_table.set_homogeneous (true);
when_table.set_row_spacings (2);
when_table.set_col_spacings (2);
when_table.set_border_width (5);
when_table.attach (when_bar_label, 0, 1, 0, 1, Gtk::AttachOptions(0), Gtk::FILL|Gtk::EXPAND);
when_table.attach (when_bar_entry, 0, 1, 1, 2, Gtk::AttachOptions(0), Gtk::FILL|Gtk::EXPAND);
when_table.attach (when_beat_label, 1, 2, 0, 1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
when_table.attach (when_beat_entry, 1, 2, 1, 2, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
when_frame.set_name ("MetricDialogFrame");
when_frame.add (when_table);
get_vbox()->pack_start (when_frame, false, false);
}
bpm_frame.set_name ("MetricDialogFrame");
bpm_entry.set_name ("MetricEntry");
get_vbox()->pack_start (bpm_frame, false, false);
add_button (Stock::CANCEL, RESPONSE_CANCEL);
add_button (Stock::APPLY, RESPONSE_ACCEPT);
set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
set_default_response (RESPONSE_ACCEPT);
get_vbox()->show_all();
bpm_entry.show();
set_name ("MetricDialog");
bpm_entry.signal_activate().connect (bind (mem_fun (*this, &TempoDialog::response), RESPONSE_ACCEPT));
bpm_entry.signal_key_release_event().connect (mem_fun (*this, &TempoDialog::bpm_key_release));
bpm_entry.signal_key_press_event().connect (mem_fun (*this, &TempoDialog::bpm_key_press), false);
}
bool
TempoDialog::bpm_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
TempoDialog::bpm_key_release (GdkEventKey* ev)
{
if (bpm_entry.get_text() != "") {
set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
} else {
set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
}
return false;
}
double
TempoDialog::get_bpm ()
{
double bpm;
if (sscanf (bpm_entry.get_text().c_str(), "%lf", &bpm) != 1) {
return 0;
}
return bpm;
}
bool
TempoDialog::get_bbt_time (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;
}
return true;
}
MeterDialog::MeterDialog (TempoMap& map, jack_nframes_t frame, const string & action)
: ArdourDialog ("meter dialog"),
note_frame (_("Meter denominator")),
bpb_frame (_("Beats per bar")),
ok_button (action),
cancel_button (_("Cancel")),
when_bar_label (_("Bar")),
when_beat_label (_("Beat")),
when_frame (_("Location"))
{
BBT_Time when;
frame = map.round_to_bar(frame,0);
Meter meter (map.meter_at(frame));
map.bbt_time (frame, when);
init (when, meter.beats_per_bar(), meter.note_divisor(), true);
}
MeterDialog::MeterDialog (MeterSection& section, const string & action)
: ArdourDialog ("meter dialog"),
note_frame (_("Meter denominator")),
bpb_frame (_("Beats per bar")),
ok_button (action),
cancel_button (_("Cancel")),
when_bar_label (_("Bar")),
when_beat_label (_("Beat")),
when_frame (_("Location"))
{
init (section.start(), section.beats_per_bar(), section.note_divisor(), section.movable());
}
void
MeterDialog::init (const BBT_Time& when, double bpb, double note_type, bool movable)
{
snprintf (buf, sizeof (buf), "%.2f", bpb);
bpb_entry.set_text (buf);
bpb_entry.select_region (0, -1);
Gtkmm2ext::set_size_request_to_display_given_text (bpb_entry, "999999g", 5, 5);
strings.push_back (_("whole (1)"));
strings.push_back (_("second (2)"));
strings.push_back (_("third (3)"));
strings.push_back (_("quarter (4)"));
strings.push_back (_("eighth (8)"));
strings.push_back (_("sixteenth (16)"));
strings.push_back (_("thirty-second (32)"));
set_popdown_strings (note_types, strings);
if (note_type==1.0f)
note_types.set_active_text (_("whole (1)"));
else if (note_type==2.0f)
note_types.set_active_text (_("second (2)"));
else if (note_type==3.0f)
note_types.set_active_text (_("third (3)"));
else if (note_type==4.0f)
note_types.set_active_text (_("quarter (4)"));
else if (note_type==8.0f)
note_types.set_active_text (_("eighth (8)"));
else if (note_type==16.0f)
note_types.set_active_text (_("sixteenth (16)"));
else if (note_type==32.0f)
note_types.set_active_text (_("thirty-second (32)"));
else
note_types.set_active_text (_("quarter (4)"));
/* the string here needs to be the longest one to display */
const guint32 FUDGE = 20; // Combo's are stupid - they steal space from the entry for the button
Gtkmm2ext::set_size_request_to_display_given_text (note_types, "thirty-second (32)", 7+FUDGE, 7);
hspacer1.set_border_width (5);
hspacer1.pack_start (note_types, false, false);
vspacer1.set_border_width (5);
vspacer1.pack_start (hspacer1, false, false);
hspacer2.set_border_width (5);
hspacer2.pack_start (bpb_entry, false, false);
vspacer2.set_border_width (5);
vspacer2.pack_start (hspacer2, false, false);
note_frame.add (vspacer1);
bpb_frame.add (vspacer2);
if (movable) {
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);
when_bar_entry.set_name ("MetricEntry");
when_beat_entry.set_name ("MetricEntry");
when_bar_label.set_name ("MetricLabel");
when_beat_label.set_name ("MetricLabel");
Gtkmm2ext::set_size_request_to_display_given_text (when_bar_entry, "999g", 5, 7);
Gtkmm2ext::set_size_request_to_display_given_text (when_beat_entry, "999g", 5, 7);
when_table.set_homogeneous (true);
when_table.set_row_spacings (2);
when_table.set_col_spacings (2);
when_table.set_border_width (5);
when_table.attach (when_bar_label, 0, 1, 0, 1, Gtk::AttachOptions(0), Gtk::FILL|Gtk::EXPAND);
when_table.attach (when_bar_entry, 0, 1, 1, 2, Gtk::AttachOptions(0), Gtk::FILL|Gtk::EXPAND);
when_table.attach (when_beat_label, 1, 2, 0, 1, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
when_table.attach (when_beat_entry, 1, 2, 1, 2, Gtk::AttachOptions(0), Gtk::AttachOptions(0));
when_frame.set_name ("MetricDialogFrame");
when_frame.add (when_table);
get_vbox()->pack_start (when_frame, false, false);
}
get_vbox()->pack_start (bpb_frame, false, false);
get_vbox()->pack_start (note_frame, false, false);
bpb_frame.set_name ("MetricDialogFrame");
note_frame.set_name ("MetricDialogFrame");
bpb_entry.set_name ("MetricEntry");
add_button (Stock::CANCEL, RESPONSE_CANCEL);
add_button (Stock::APPLY, RESPONSE_ACCEPT);
set_response_sensitive (RESPONSE_ACCEPT, false);
set_default_response (RESPONSE_ACCEPT);
get_vbox()->show_all ();
bpb_entry.show ();
set_name ("MetricDialog");
bpb_entry.signal_activate().connect (bind (mem_fun (*this, &MeterDialog::response), RESPONSE_ACCEPT));
bpb_entry.signal_key_press_event().connect (mem_fun (*this, &MeterDialog::bpb_key_press), false);
bpb_entry.signal_key_release_event().connect (mem_fun (*this, &MeterDialog::bpb_key_release));
note_types.signal_changed().connect (mem_fun (*this, &MeterDialog::note_types_change));
}
bool
MeterDialog::bpb_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::bpb_key_release (GdkEventKey* ev)
{
if (bpb_entry.get_text() != "") {
set_response_sensitive (RESPONSE_ACCEPT, true);
} else {
set_response_sensitive (RESPONSE_ACCEPT, false);
}
return false;
}
void
MeterDialog::note_types_change ()
{
set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
}
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 ()
{
double note_type = 0;
vector<string>::iterator i;
string text = note_types.get_active_text();
for (i = strings.begin(); i != strings.end(); ++i) {
if (text == *i) {
if (sscanf (text.c_str(), "%*[^0-9]%lf", &note_type) != 1) {
error << string_compose(_("garbaged note type entry (%1)"), text) << endmsg;
return 0;
} else {
break;
}
}
}
if (i == strings.end()) {
if (sscanf (text.c_str(), "%lf", &note_type) != 1) {
error << string_compose(_("incomprehensible note type entry (%1)"), text) << endmsg;
return 0;
}
}
return note_type;
}
bool
MeterDialog::get_bbt_time (BBT_Time& requested)
{
requested.ticks = 0;
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;
}
return true;
}
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