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livetrax/gtk2_ardour/transform_dialog.cc

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2014-12-28 15:50:57 -05:00
/*
Copyright (C) 2009-2014 Paul Davis
Author: David Robillard
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 <gtkmm/box.h>
#include <gtkmm/label.h>
#include <gtkmm/stock.h>
#include "transform_dialog.h"
#include "i18n.h"
using namespace std;
using namespace Gtk;
using namespace ARDOUR;
TransformDialog::Model::Model()
: source_list(Gtk::ListStore::create(source_cols))
, property_list(Gtk::ListStore::create(property_cols))
, operator_list(Gtk::ListStore::create(operator_cols))
{
static const char* source_labels[] = {
/* no NOTHING */
_("this note's"),
_("the previous note's"),
_("this note's index"),
_("the number of notes"),
_("exactly"),
_("a random number from"),
NULL
};
for (int s = 0; source_labels[s]; ++s) {
Gtk::TreeModel::Row row = *(source_list->append());
row[source_cols.source] = (Source)(s + 1); // Skip NOTHING
row[source_cols.label] = source_labels[s];
}
// Special row for ramp, which doesn't correspond to a source
Gtk::TreeModel::Row row = *(source_list->append());
row[source_cols.source] = Value::NOWHERE;
row[source_cols.label] = _("equal steps from");
static const char* property_labels[] = {
_("note number"),
_("velocity"),
_("start time"),
_("length"),
_("channel"),
NULL
};
for (int p = 0; property_labels[p]; ++p) {
Gtk::TreeModel::Row row = *(property_list->append());
row[property_cols.property] = (Property)p;
row[property_cols.label] = property_labels[p];
}
static const char* operator_labels[] = {
/* no PUSH */ "+", "-", "*", "/", "mod", NULL
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};
for (int o = 0; operator_labels[o]; ++o) {
Gtk::TreeModel::Row row = *(operator_list->append());
row[operator_cols.op] = (Operator)(o + 1); // Skip PUSH
row[operator_cols.label] = operator_labels[o];
}
}
TransformDialog::TransformDialog()
: ArdourDialog(_("Transform"), false, false)
{
_property_combo.set_model(_model.property_list);
_property_combo.pack_start(_model.property_cols.label);
_property_combo.set_active(1);
_property_combo.signal_changed().connect(
sigc::mem_fun(this, &TransformDialog::property_changed));
Gtk::HBox* property_hbox = Gtk::manage(new Gtk::HBox);
property_hbox->pack_start(*Gtk::manage(new Gtk::Label(_("Set "))), false, false);
property_hbox->pack_start(_property_combo, false, false);
property_hbox->pack_start(*Gtk::manage(new Gtk::Label(_(" to "))), false, false);
_seed_chooser = Gtk::manage(new ValueChooser(_model));
_seed_chooser->set_target_property(MidiModel::NoteDiffCommand::Velocity);
_seed_chooser->source_combo.set_active(0);
property_hbox->pack_start(*_seed_chooser, false, false);
Gtk::HBox* add_hbox = Gtk::manage(new Gtk::HBox);
_add_button.add(
*manage(new Gtk::Image(Gtk::Stock::ADD, Gtk::ICON_SIZE_BUTTON)));
add_hbox->pack_start(_add_button, false, false);
_add_button.signal_clicked().connect(
sigc::mem_fun(*this, &TransformDialog::add_clicked));
get_vbox()->set_spacing(6);
get_vbox()->pack_start(*property_hbox, false, false);
get_vbox()->pack_start(_operations_box, false, false);
get_vbox()->pack_start(*add_hbox, false, false);
add_button(Stock::CANCEL, Gtk::RESPONSE_CANCEL);
add_button(_("Transform"), Gtk::RESPONSE_OK);
show_all();
_seed_chooser->value_spinner.hide();
}
TransformDialog::ValueChooser::ValueChooser(const Model& model)
: model(model)
, target_property((Property)1)
, to_label(" to ")
{
source_combo.set_model(model.source_list);
source_combo.pack_start(model.source_cols.label);
source_combo.signal_changed().connect(
sigc::mem_fun(this, &TransformDialog::ValueChooser::source_changed));
property_combo.set_model(model.property_list);
property_combo.pack_start(model.property_cols.label);
set_spacing(4);
pack_start(source_combo, false, false);
pack_start(property_combo, false, false);
pack_start(value_spinner, false, false);
pack_start(to_label, false, false);
pack_start(max_spinner, false, false);
show_all();
source_combo.set_active(4);
property_combo.set_active(1);
set_target_property(MidiModel::NoteDiffCommand::Velocity);
max_spinner.set_value(127);
source_changed();
}
static void
set_spinner_for(Gtk::SpinButton& spinner,
MidiModel::NoteDiffCommand::Property prop)
{
switch (prop) {
case MidiModel::NoteDiffCommand::NoteNumber:
case MidiModel::NoteDiffCommand::Velocity:
spinner.get_adjustment()->set_lower(1); // no 0, note off
spinner.get_adjustment()->set_upper(127);
spinner.get_adjustment()->set_step_increment(1);
spinner.get_adjustment()->set_page_increment(10);
spinner.set_digits(0);
break;
case MidiModel::NoteDiffCommand::StartTime:
spinner.get_adjustment()->set_lower(0);
spinner.get_adjustment()->set_upper(1024);
spinner.get_adjustment()->set_step_increment(0.125);
spinner.get_adjustment()->set_page_increment(1.0);
spinner.set_digits(2);
break;
case MidiModel::NoteDiffCommand::Length:
spinner.get_adjustment()->set_lower(1.0 / 64.0);
spinner.get_adjustment()->set_upper(32);
spinner.get_adjustment()->set_step_increment(1.0 / 64.0);
spinner.get_adjustment()->set_page_increment(1.0);
spinner.set_digits(2);
break;
case MidiModel::NoteDiffCommand::Channel:
spinner.get_adjustment()->set_lower(0);
spinner.get_adjustment()->set_upper(15);
spinner.get_adjustment()->set_step_increment(1);
spinner.get_adjustment()->set_page_increment(10);
spinner.set_digits(0);
break;
}
spinner.set_value(
std::min(spinner.get_adjustment()->get_upper(),
std::max(spinner.get_adjustment()->get_lower(), spinner.get_value())));
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}
void
TransformDialog::ValueChooser::set_target_property(Property prop)
{
target_property = prop;
set_spinner_for(value_spinner, prop);
set_spinner_for(max_spinner, prop);
}
void
TransformDialog::ValueChooser::source_changed()
{
Gtk::TreeModel::const_iterator s = source_combo.get_active();
const Source source = (*s)[model.source_cols.source];
value_spinner.hide();
to_label.hide();
max_spinner.hide();
if (source == Value::LITERAL) {
value_spinner.show();
property_combo.hide();
} else if (source == Value::RANDOM) {
value_spinner.show();
to_label.show();
max_spinner.show();
property_combo.hide();
} else if (source == Value::NOWHERE) {
/* Bit of a kludge, hijack this for ramps since it's the only thing
that doesn't correspond to a source. When we add more fancy
code-generating value chooser options, the column model will need to
be changed a bit to reflect this. */
value_spinner.show();
to_label.show();
max_spinner.show();
property_combo.hide();
} else if (source == Value::INDEX || source == Value::N_NOTES) {
value_spinner.hide();
property_combo.hide();
} else {
value_spinner.hide();
property_combo.show();
}
}
void
TransformDialog::ValueChooser::get(std::list<Operation>& ops)
{
Gtk::TreeModel::const_iterator s = source_combo.get_active();
const Source source = (*s)[model.source_cols.source];
if (source == Transform::Value::RANDOM) {
/* Special case: a RANDOM value is always 0..1, so here we produce some
code to produce a random number in a range: "rand value *". */
const double a = value_spinner.get_value();
const double b = max_spinner.get_value();
const double min = std::min(a, b);
const double max = std::max(a, b);
const double range = max - min;
// "rand range * min +" ((rand * range) + min)
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ops.push_back(Operation(Operation::PUSH, Value(Value::RANDOM)));
ops.push_back(Operation(Operation::PUSH, Value(range)));
ops.push_back(Operation(Operation::MULT));
ops.push_back(Operation(Operation::PUSH, Value(min)));
ops.push_back(Operation(Operation::ADD));
return;
} else if (source == Transform::Value::NOWHERE) {
/* Special case: hijack NOWHERE for ramps (see above). The language
knows nothing of ramps, we generate code to calculate the
appropriate value here. */
const double first = value_spinner.get_value();
const double last = max_spinner.get_value();
const double rise = last - first;
// "index rise * n_notes 1 - / first +" (index * rise / (n_notes - 1) + first)
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ops.push_back(Operation(Operation::PUSH, Value(Value::INDEX)));
ops.push_back(Operation(Operation::PUSH, Value(rise)));
ops.push_back(Operation(Operation::MULT));
ops.push_back(Operation(Operation::PUSH, Value(Value::N_NOTES)));
ops.push_back(Operation(Operation::PUSH, Value(1)));
ops.push_back(Operation(Operation::SUB));
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ops.push_back(Operation(Operation::DIV));
ops.push_back(Operation(Operation::PUSH, Value(first)));
ops.push_back(Operation(Operation::ADD));
return;
}
// Produce a simple Value
Value val((*s)[model.source_cols.source]);
if (val.source == Transform::Value::THIS_NOTE ||
val.source == Transform::Value::PREV_NOTE) {
Gtk::TreeModel::const_iterator p = property_combo.get_active();
val.prop = (*p)[model.property_cols.property];
} else if (val.source == Transform::Value::LITERAL) {
val.value = Variant(
MidiModel::NoteDiffCommand::value_type(target_property),
value_spinner.get_value());
}
ops.push_back(Operation(Operation::PUSH, val));
}
TransformDialog::OperationChooser::OperationChooser(const Model& model)
: model(model)
, value_chooser(model)
{
operator_combo.set_model(model.operator_list);
operator_combo.pack_start(model.operator_cols.label);
operator_combo.set_active(0);
pack_start(operator_combo, false, false);
pack_start(value_chooser, false, false);
pack_start(*Gtk::manage(new Gtk::Label(" ")), true, true);
pack_start(remove_button, false, false);
remove_button.add(
*manage(new Gtk::Image(Gtk::Stock::REMOVE, Gtk::ICON_SIZE_BUTTON)));
remove_button.signal_clicked().connect(
sigc::mem_fun(*this, &TransformDialog::OperationChooser::remove_clicked));
value_chooser.source_combo.set_active(0);
show_all();
value_chooser.property_combo.hide();
value_chooser.value_spinner.set_value(1);
}
void
TransformDialog::OperationChooser::get(std::list<Operation>& ops)
{
Gtk::TreeModel::const_iterator o = operator_combo.get_active();
value_chooser.get(ops);
ops.push_back(Operation((*o)[model.operator_cols.op]));
}
void
TransformDialog::OperationChooser::remove_clicked()
{
delete this;
}
Transform::Program
TransformDialog::get()
{
Transform::Program prog;
// Set target property
prog.prop = (*_property_combo.get_active())[_model.property_cols.property];
// Append code to push seed to stack
_seed_chooser->get(prog.ops);
// Append all operations' code to program
const std::vector<Gtk::Widget*>& choosers = _operations_box.get_children();
for (std::vector<Gtk::Widget*>::const_iterator o = choosers.begin();
o != choosers.end(); ++o) {
OperationChooser* chooser = dynamic_cast<OperationChooser*>(*o);
if (chooser) {
chooser->get(prog.ops);
}
}
return prog;
}
void
TransformDialog::property_changed()
{
Gtk::TreeModel::const_iterator i = _property_combo.get_active();
_seed_chooser->set_target_property((*i)[_model.property_cols.property]);
}
void
TransformDialog::add_clicked()
{
_operations_box.pack_start(
*Gtk::manage(new OperationChooser(_model)), false, false);
}