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livetrax/gtk2_ardour/audio_region_editor.cc
Carl Hetherington 3c00a7ca2a Move ARDOUR::Change into PBD so that Stateful can be aware of
what Change a State reflects.  Hence allow Stateful to do some
of the work of set/get_state in Region.


git-svn-id: svn://localhost/ardour2/branches/3.0@6671 d708f5d6-7413-0410-9779-e7cbd77b26cf
2010-02-10 01:38:20 +00:00

418 lines
13 KiB
C++

/*
Copyright (C) 2001 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 "pbd/memento_command.h"
#include "ardour/session.h"
#include "ardour/audioregion.h"
#include "ardour/playlist.h"
#include "ardour/utils.h"
#include "ardour/dB.h"
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/stop_signal.h>
#include <cmath>
#include "audio_region_editor.h"
#include "audio_region_view.h"
#include "ardour_ui.h"
#include "utils.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
using namespace Gtkmm2ext;
AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion> r, AudioRegionView& rv)
: RegionEditor (s),
_region (r),
_region_view (rv),
name_label (_("Name:")),
audition_button (_("Play")),
time_table (6, 2),
position_clock (X_("regionposition"), true, X_("AudioRegionEditorClock"), true, false),
end_clock (X_("regionend"), true, X_("AudioRegionEditorClock"), true, false),
length_clock (X_("regionlength"), true, X_("AudioRegionEditorClock"), true, false, true),
sync_offset_relative_clock (X_("regionsyncoffsetrelative"), true, X_("AudioRegionEditorClock"), true, false),
sync_offset_absolute_clock (X_("regionsyncoffsetabsolute"), true, X_("AudioRegionEditorClock"), true, false),
/* XXX cannot file start yet */
start_clock (X_("regionstart"), true, X_("AudioRegionEditorClock"), false, false),
gain_adjustment(accurate_coefficient_to_dB(_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
{
position_clock.set_session (_session);
end_clock.set_session (_session);
length_clock.set_session (_session);
sync_offset_relative_clock.set_session (_session);
sync_offset_absolute_clock.set_session (_session);
start_clock.set_session (_session);
name_entry.set_name ("AudioRegionEditorEntry");
name_label.set_name ("AudioRegionEditorLabel");
name_hbox.set_spacing (5);
name_hbox.pack_start (name_label, false, false);
name_hbox.pack_start (name_entry, false, false);
ARDOUR_UI::instance()->set_tip (audition_button, _("audition this region"));
audition_button.unset_flags (Gtk::CAN_FOCUS);
audition_button.set_events (audition_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
top_row_button_hbox.set_border_width (5);
top_row_button_hbox.set_spacing (5);
top_row_button_hbox.set_homogeneous (false);
top_row_button_hbox.pack_end (audition_button, false, false);
top_row_hbox.pack_start (name_hbox, true, true);
top_row_hbox.pack_end (top_row_button_hbox, true, true);
position_label.set_name ("AudioRegionEditorLabel");
position_label.set_text (_("Position"));
end_label.set_name ("AudioRegionEditorLabel");
end_label.set_text (_("End"));
length_label.set_name ("AudioRegionEditorLabel");
length_label.set_text (_("Length"));
sync_relative_label.set_name ("AudioRegionEditorLabel");
sync_relative_label.set_text (_("Sync point (relative to region position)"));
sync_absolute_label.set_name ("AudioRegionEditorLabel");
sync_absolute_label.set_text (_("Sync point (absolute)"));
start_label.set_name ("AudioRegionEditorLabel");
start_label.set_text (_("File start"));
time_table.set_col_spacings (2);
time_table.set_row_spacings (5);
time_table.set_border_width (5);
position_label.set_alignment (1, 0.5);
time_table.attach (position_label, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
time_table.attach (position_clock, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL);
end_label.set_alignment (1, 0.5);
time_table.attach (end_label, 0, 1, 1, 2, Gtk::FILL, Gtk::FILL);
time_table.attach (end_clock, 1, 2, 1, 2, Gtk::FILL, Gtk::FILL);
length_label.set_alignment (1, 0.5);
time_table.attach (length_label, 0, 1, 2, 3, Gtk::FILL, Gtk::FILL);
time_table.attach (length_clock, 1, 2, 2, 3, Gtk::FILL, Gtk::FILL);
sync_relative_label.set_alignment (1, 0.5);
time_table.attach (sync_relative_label, 0, 1, 3, 4, Gtk::FILL, Gtk::FILL);
time_table.attach (sync_offset_relative_clock, 1, 2, 3, 4, Gtk::FILL, Gtk::FILL);
sync_absolute_label.set_alignment (1, 0.5);
time_table.attach (sync_absolute_label, 0, 1, 4, 5, Gtk::FILL, Gtk::FILL);
time_table.attach (sync_offset_absolute_clock, 1, 2, 4, 5, Gtk::FILL, Gtk::FILL);
start_label.set_alignment (1, 0.5);
time_table.attach (start_label, 0, 1, 5, 6, Gtk::FILL, Gtk::FILL);
time_table.attach (start_clock, 1, 2, 5, 6, Gtk::FILL, Gtk::FILL);
gain_label.set_name ("AudioRegionEditorLabel");
gain_label.set_text (_("Scale amplitude:"));
gain_label.set_alignment (1, 0.5);
gain_entry.configure (gain_adjustment, 0.0, 1);
time_table.attach (gain_label, 0, 1, 6, 7, Gtk::FILL, Gtk::FILL);
time_table.attach (gain_entry, 1, 2, 6, 7, Gtk::FILL, Gtk::FILL);
lower_hbox.pack_start (time_table, true, true);
lower_hbox.pack_start (sep1, false, false);
lower_hbox.pack_start (sep2, false, false);
get_vbox()->pack_start (top_row_hbox, true, true);
get_vbox()->pack_start (sep3, false, false);
get_vbox()->pack_start (lower_hbox, true, true);
set_name ("AudioRegionEditorWindow");
add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (this)));
set_title (string_compose (_("Region %1"), _region->name()));
show_all();
name_changed ();
bounds_changed (Change (StartChanged|LengthChanged|PositionChanged|Region::SyncOffsetChanged));
gain_changed ();
_region->StateChanged.connect (state_connection, ui_bind (&AudioRegionEditor::region_changed, this, _1), gui_context());
spin_arrow_grab = false;
connect_editor_events ();
}
AudioRegionEditor::~AudioRegionEditor ()
{
}
void
AudioRegionEditor::region_changed (PBD::Change what_changed)
{
if (what_changed & NameChanged) {
name_changed ();
}
if (what_changed & Change (BoundsChanged|StartChanged|Region::SyncOffsetChanged)) {
bounds_changed (what_changed);
}
if (what_changed & AudioRegion::ScaleAmplitudeChanged) {
gain_changed ();
}
}
gint
AudioRegionEditor::bpressed (GdkEventButton* ev, Gtk::SpinButton* /*but*/, void (AudioRegionEditor::*/*pmf*/)())
{
switch (ev->button) {
case 1:
case 2:
case 3:
if (ev->type == GDK_BUTTON_PRESS) { /* no double clicks here */
if (!spin_arrow_grab) {
// GTK2FIX probably nuke the region editor
// if ((ev->window == but->gobj()->panel)) {
// spin_arrow_grab = true;
// (this->*pmf)();
// }
}
}
break;
default:
break;
}
return FALSE;
}
gint
AudioRegionEditor::breleased (GdkEventButton* /*ev*/, Gtk::SpinButton* /*but*/, void (AudioRegionEditor::*pmf)())
{
if (spin_arrow_grab) {
(this->*pmf)();
spin_arrow_grab = false;
}
return FALSE;
}
void
AudioRegionEditor::connect_editor_events ()
{
name_entry.signal_changed().connect (sigc::mem_fun(*this, &AudioRegionEditor::name_entry_changed));
position_clock.ValueChanged.connect (sigc::mem_fun(*this, &AudioRegionEditor::position_clock_changed));
end_clock.ValueChanged.connect (sigc::mem_fun(*this, &AudioRegionEditor::end_clock_changed));
length_clock.ValueChanged.connect (sigc::mem_fun(*this, &AudioRegionEditor::length_clock_changed));
sync_offset_absolute_clock.ValueChanged.connect (sigc::mem_fun (*this, &AudioRegionEditor::sync_offset_absolute_clock_changed));
sync_offset_relative_clock.ValueChanged.connect (sigc::mem_fun (*this, &AudioRegionEditor::sync_offset_relative_clock_changed));
gain_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
audition_button.signal_toggled().connect (sigc::mem_fun(*this, &AudioRegionEditor::audition_button_toggled));
_session->AuditionActive.connect (audition_connection, ui_bind (&AudioRegionEditor::audition_state_changed, this, _1), gui_context());
}
void
AudioRegionEditor::position_clock_changed ()
{
_session->begin_reversible_command (_("change region start position"));
boost::shared_ptr<Playlist> pl = _region->playlist();
if (pl) {
XMLNode &before = pl->get_state();
_region->set_position (position_clock.current_time(), this);
XMLNode &after = pl->get_state();
_session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
}
_session->commit_reversible_command ();
}
void
AudioRegionEditor::end_clock_changed ()
{
_session->begin_reversible_command (_("change region end position"));
boost::shared_ptr<Playlist> pl = _region->playlist();
if (pl) {
XMLNode &before = pl->get_state();
_region->trim_end (end_clock.current_time(), this);
XMLNode &after = pl->get_state();
_session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
}
_session->commit_reversible_command ();
end_clock.set (_region->position() + _region->length() - 1, true);
}
void
AudioRegionEditor::length_clock_changed ()
{
nframes_t frames = length_clock.current_time();
_session->begin_reversible_command (_("change region length"));
boost::shared_ptr<Playlist> pl = _region->playlist();
if (pl) {
XMLNode &before = pl->get_state();
_region->trim_end (_region->position() + frames - 1, this);
XMLNode &after = pl->get_state();
_session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
}
_session->commit_reversible_command ();
length_clock.set (_region->length());
}
void
AudioRegionEditor::gain_changed ()
{
float const region_gain_dB = accurate_coefficient_to_dB (_region->scale_amplitude());
if (region_gain_dB != gain_adjustment.get_value()) {
gain_adjustment.set_value(region_gain_dB);
}
}
void
AudioRegionEditor::gain_adjustment_changed ()
{
float const gain = dB_to_coefficient (gain_adjustment.get_value());
if (_region->scale_amplitude() != gain) {
_region->set_scale_amplitude (gain);
}
}
void
AudioRegionEditor::audition_button_toggled ()
{
if (audition_button.get_active()) {
_session->audition_region (_region);
} else {
_session->cancel_audition ();
}
}
void
AudioRegionEditor::name_changed ()
{
if (name_entry.get_text() != _region->name()) {
name_entry.set_text (_region->name());
}
}
void
AudioRegionEditor::bounds_changed (Change what_changed)
{
if ((what_changed & Change (PositionChanged|LengthChanged)) == Change (PositionChanged|LengthChanged)) {
position_clock.set (_region->position(), true);
end_clock.set (_region->position() + _region->length() - 1, true);
length_clock.set (_region->length(), true);
} else if (what_changed & Change (PositionChanged)) {
position_clock.set (_region->position(), true);
end_clock.set (_region->position() + _region->length() - 1, true);
} else if (what_changed & Change (LengthChanged)) {
end_clock.set (_region->position() + _region->length() - 1, true);
length_clock.set (_region->length(), true);
}
if ((what_changed & Region::SyncOffsetChanged) || (what_changed & PositionChanged)) {
int dir;
nframes_t off = _region->sync_offset (dir);
if (dir == -1) {
off = -off;
}
if (what_changed & Region::SyncOffsetChanged) {
sync_offset_relative_clock.set (off, true);
}
sync_offset_absolute_clock.set (off + _region->position (), true);
}
if (what_changed & StartChanged) {
start_clock.set (_region->start(), true);
}
}
void
AudioRegionEditor::activation ()
{
}
void
AudioRegionEditor::name_entry_changed ()
{
if (name_entry.get_text() != _region->name()) {
_region->set_name (name_entry.get_text());
}
}
void
AudioRegionEditor::audition_state_changed (bool yn)
{
ENSURE_GUI_THREAD (*this, &AudioRegionEditor::audition_state_changed, yn)
if (!yn) {
audition_button.set_active (false);
}
}
void
AudioRegionEditor::sync_offset_absolute_clock_changed ()
{
_session->begin_reversible_command (_("change region sync point"));
XMLNode& before = _region->get_state ();
_region->set_sync_position (sync_offset_absolute_clock.current_time());
XMLNode& after = _region->get_state ();
_session->add_command (new MementoCommand<AudioRegion> (*_region.get(), &before, &after));
_session->commit_reversible_command ();
}
void
AudioRegionEditor::sync_offset_relative_clock_changed ()
{
_session->begin_reversible_command (_("change region sync point"));
XMLNode& before = _region->get_state ();
_region->set_sync_position (sync_offset_relative_clock.current_time() + _region->position ());
XMLNode& after = _region->get_state ();
_session->add_command (new MementoCommand<AudioRegion> (*_region.get(), &before, &after));
_session->commit_reversible_command ();
}
bool
AudioRegionEditor::on_delete_event (GdkEventAny* ev)
{
bounds_changed (Change (StartChanged|LengthChanged|PositionChanged|Region::SyncOffsetChanged));
return RegionEditor::on_delete_event (ev);
}