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livetrax/gtk2_ardour/ardour_ui2.cc
Paul Davis 2d32c7da36 more work on actions and general compilability 
git-svn-id: svn://localhost/trunk/ardour2@56 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-10-10 20:38:53 +00:00

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/*
Copyright (C) 1999 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.
$Id$
*/
#include <fcntl.h>
#include <signal.h>
#include <unistd.h>
#include <cerrno>
#include <iostream>
#include <cmath>
#include <sigc++/bind.h>
#include <pbd/error.h>
#include <pbd/basename.h>
#include <pbd/fastlog.h>
#include <gtkmm2ext/pix.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/click_box.h>
#include <gtkmm2ext/tearoff.h>
#include <ardour/audioengine.h>
#include <ardour/ardour.h>
#include <ardour/route.h>
#include "ardour_ui.h"
#include "public_editor.h"
#include "audio_clock.h"
#include "utils.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace sigc;
int
ARDOUR_UI::setup_windows ()
{
using namespace Menu_Helpers;
if (create_editor ()) {
error << _("UI: cannot setup editor") << endmsg;
return -1;
}
if (create_mixer ()) {
error << _("UI: cannot setup mixer") << endmsg;
return -1;
}
if (create_meter_bridge ()) {
error << _("UI: cannot setup meter_bridge") << endmsg;
return -1;
}
/* all other dialogs are created conditionally */
we_have_dependents ();
setup_clock ();
setup_transport();
setup_adjustables ();
build_menu_bar ();
top_packer.pack_start (menu_bar_base, false, false);
top_packer.pack_start (transport_frame, false, false);
editor->add_toplevel_controls (top_packer);
return 0;
}
void
ARDOUR_UI::setup_adjustables ()
{
adjuster_table.set_homogeneous (true);
online_control_strings.push_back (_("MMC + Local"));
online_control_strings.push_back (_("MMC"));
online_control_strings.push_back (_("Local"));
online_control_button = new GlobalClickBox ("CONTROL",
online_control_strings);
online_control_button->adjustment.signal_value_changed().connect(mem_fun(*this,&ARDOUR_UI::control_methods_adjusted));
mmc_id_strings.push_back ("1");
mmc_id_strings.push_back ("2");
mmc_id_strings.push_back ("3");
mmc_id_strings.push_back ("4");
mmc_id_strings.push_back ("5");
mmc_id_strings.push_back ("6");
mmc_id_strings.push_back ("7");
mmc_id_strings.push_back ("8");
mmc_id_strings.push_back ("9");
mmc_id_button = new GlobalClickBox (_("MMC ID"), mmc_id_strings);
mmc_id_button->adjustment.signal_value_changed().connect (mem_fun(*this,&ARDOUR_UI::mmc_device_id_adjusted));
adjuster_table.attach (*online_control_button, 0, 2, 1, 2, FILL|EXPAND, FILL, 5, 5);
adjuster_table.attach (*mmc_id_button, 2, 3, 1, 2, FILL, FILL, 5, 5);
}
#include "transport_xpms"
void
ARDOUR_UI::transport_stopped ()
{
roll_button.set_active (false);
play_selection_button.set_active (false);
auto_loop_button.set_active (false);
shuttle_fract = 0;
shuttle_box.queue_draw ();
update_disk_space ();
}
static const double SHUTTLE_FRACT_SPEED1=0.48412291827; /* derived from A1,A2 */
void
ARDOUR_UI::transport_rolling ()
{
if (session->get_play_range()) {
play_selection_button.set_active (true);
roll_button.set_active (false);
auto_loop_button.set_active (false);
} else if (session->get_auto_loop ()) {
auto_loop_button.set_active (true);
play_selection_button.set_active (false);
roll_button.set_active (false);
} else {
roll_button.set_active (true);
play_selection_button.set_active (false);
auto_loop_button.set_active (false);
}
/* reset shuttle controller */
shuttle_fract = SHUTTLE_FRACT_SPEED1; /* speed = 1.0, believe it or not */
shuttle_box.queue_draw ();
}
void
ARDOUR_UI::transport_rewinding ()
{
roll_button.set_active (true);
play_selection_button.set_active (false);
auto_loop_button.set_active (false);
}
void
ARDOUR_UI::transport_forwarding ()
{
roll_button.set_active (true);
play_selection_button.set_active (false);
auto_loop_button.set_active (false);
}
void
ARDOUR_UI::setup_transport ()
{
transport_tearoff = manage (new TearOff (transport_tearoff_hbox));
transport_tearoff->set_name ("TransportBase");
transport_hbox.pack_start (*transport_tearoff, true, false);
transport_base.set_name ("TransportBase");
transport_base.add (transport_hbox);
transport_frame.set_shadow_type (Gtk::SHADOW_OUT);
transport_frame.set_name ("BaseFrame");
transport_frame.add (transport_base);
transport_tearoff->Detach.connect (bind (mem_fun(*this, &ARDOUR_UI::detach_tearoff), static_cast<Gtk::Box*>(&top_packer),
static_cast<Gtk::Widget*>(&transport_frame)));
transport_tearoff->Attach.connect (bind (mem_fun(*this, &ARDOUR_UI::reattach_tearoff), static_cast<Gtk::Box*> (&top_packer),
static_cast<Gtk::Widget*> (&transport_frame), 1));
goto_start_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(start_xpm)))));
goto_end_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(end_xpm)))));
roll_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(arrow_xpm)))));
stop_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(stop_xpm)))));
play_selection_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(play_selection_xpm)))));
rec_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(rec_xpm)))));
auto_loop_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(loop_xpm)))));
ARDOUR_UI::instance()->tooltips().set_tip (roll_button, _("Play from playhead"));
ARDOUR_UI::instance()->tooltips().set_tip (stop_button, _("Stop playback"));
ARDOUR_UI::instance()->tooltips().set_tip (play_selection_button, _("Play range/selection"));
ARDOUR_UI::instance()->tooltips().set_tip (goto_start_button, _("Go to start of session"));
ARDOUR_UI::instance()->tooltips().set_tip (goto_end_button, _("Go to end of session"));
ARDOUR_UI::instance()->tooltips().set_tip (auto_loop_button, _("Play loop range"));
ARDOUR_UI::instance()->tooltips().set_tip (auto_return_button, _("Return to last playback start when stopped"));
ARDOUR_UI::instance()->tooltips().set_tip (auto_play_button, _("Start playback after any locate"));
ARDOUR_UI::instance()->tooltips().set_tip (auto_input_button, _("Be sensible about input monitoring"));
ARDOUR_UI::instance()->tooltips().set_tip (punch_in_button, _("Start recording at auto-punch start"));
ARDOUR_UI::instance()->tooltips().set_tip (punch_out_button, _("Stop recording at auto-punch end"));
ARDOUR_UI::instance()->tooltips().set_tip (click_button, _("Enable/Disable audio click"));
ARDOUR_UI::instance()->tooltips().set_tip (follow_button, _("Enable/Disable follow playhead"));
ARDOUR_UI::instance()->tooltips().set_tip (shuttle_box, _("Shuttle speed control"));
ARDOUR_UI::instance()->tooltips().set_tip (shuttle_units_button, _("Select semitones or %%-age for speed display"));
ARDOUR_UI::instance()->tooltips().set_tip (shuttle_style_button, _("Select sprung or wheel behaviour"));
ARDOUR_UI::instance()->tooltips().set_tip (speed_display_box, _("Current transport speed"));
shuttle_box.set_flags (CAN_FOCUS);
shuttle_box.set_events (shuttle_box.get_events() | Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::BUTTON_PRESS_MASK|Gdk::POINTER_MOTION_MASK);
shuttle_box.set_size_request (100, 15);
shuttle_box.set_name ("TransportButton");
goto_start_button.set_name ("TransportButton");
goto_end_button.set_name ("TransportButton");
roll_button.set_name ("TransportButton");
stop_button.set_name ("TransportButton");
play_selection_button.set_name ("TransportButton");
rec_button.set_name ("TransportRecButton");
auto_loop_button.set_name ("TransportButton");
auto_return_button.set_name ("TransportButton");
auto_play_button.set_name ("TransportButton");
auto_input_button.set_name ("TransportButton");
punch_in_button.set_name ("TransportButton");
punch_out_button.set_name ("TransportButton");
click_button.set_name ("TransportButton");
follow_button.set_name ("TransportButton");
goto_start_button.unset_flags (Gtk::CAN_FOCUS);
goto_end_button.unset_flags (Gtk::CAN_FOCUS);
roll_button.unset_flags (Gtk::CAN_FOCUS);
stop_button.unset_flags (Gtk::CAN_FOCUS);
play_selection_button.unset_flags (Gtk::CAN_FOCUS);
rec_button.unset_flags (Gtk::CAN_FOCUS);
auto_loop_button.unset_flags (Gtk::CAN_FOCUS);
auto_return_button.unset_flags (Gtk::CAN_FOCUS);
auto_play_button.unset_flags (Gtk::CAN_FOCUS);
auto_input_button.unset_flags (Gtk::CAN_FOCUS);
punch_out_button.unset_flags (Gtk::CAN_FOCUS);
punch_in_button.unset_flags (Gtk::CAN_FOCUS);
click_button.unset_flags (Gtk::CAN_FOCUS);
follow_button.unset_flags (Gtk::CAN_FOCUS);
goto_start_button.set_events (goto_start_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
goto_end_button.set_events (goto_end_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
roll_button.set_events (roll_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
stop_button.set_events (stop_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
play_selection_button.set_events (play_selection_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
rec_button.set_events (rec_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
auto_loop_button.set_events (auto_loop_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
auto_return_button.set_events (auto_return_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
auto_play_button.set_events (auto_play_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
auto_input_button.set_events (auto_input_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
click_button.set_events (click_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
follow_button.set_events (click_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
punch_in_button.set_events (punch_in_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
punch_out_button.set_events (punch_out_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
goto_start_button.signal_clicked().connect (mem_fun(*this,&ARDOUR_UI::transport_goto_start));
goto_end_button.signal_clicked().connect (mem_fun(*this,&ARDOUR_UI::transport_goto_end));
roll_button.signal_button_release_event().connect (mem_fun(*this,&ARDOUR_UI::mouse_transport_roll));
play_selection_button.signal_button_release_event().connect (mem_fun(*this,&ARDOUR_UI::mouse_transport_play_selection));
auto_loop_button.signal_button_release_event().connect (mem_fun(*this,&ARDOUR_UI::mouse_transport_loop));
stop_button.signal_button_release_event().connect (mem_fun(*this,&ARDOUR_UI::mouse_transport_stop));
rec_button.signal_button_release_event().connect (mem_fun(*this,&ARDOUR_UI::mouse_transport_record));
shuttle_box.signal_button_press_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_button_press));
shuttle_box.signal_button_release_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_button_release));
shuttle_box.signal_motion_notify_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_motion));
shuttle_box.signal_expose_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_expose));
/* clocks, etc. */
ARDOUR_UI::Clock.connect (bind (mem_fun (primary_clock, &AudioClock::set), false));
ARDOUR_UI::Clock.connect (bind (mem_fun (secondary_clock, &AudioClock::set), false));
primary_clock.set_mode (AudioClock::SMPTE);
primary_clock.set_name ("TransportClockDisplay");
secondary_clock.set_mode (AudioClock::BBT);
secondary_clock.set_name ("TransportClockDisplay");
primary_clock.ValueChanged.connect (mem_fun(*this, &ARDOUR_UI::primary_clock_value_changed));
secondary_clock.ValueChanged.connect (mem_fun(*this, &ARDOUR_UI::secondary_clock_value_changed));
ARDOUR_UI::instance()->tooltips().set_tip (primary_clock, _("Primary clock"));
ARDOUR_UI::instance()->tooltips().set_tip (secondary_clock, _("secondary clock"));
/* options */
auto_return_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_auto_return));
auto_play_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_auto_play));
auto_input_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_auto_input));
click_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_click));
follow_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_follow));
punch_in_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_punch_in));
punch_out_button.signal_toggled().connect (mem_fun(*this,&ARDOUR_UI::toggle_punch_out));
preroll_button.unset_flags (Gtk::CAN_FOCUS);
preroll_button.set_events (preroll_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
preroll_button.set_name ("TransportButton");
postroll_button.unset_flags (Gtk::CAN_FOCUS);
postroll_button.set_events (postroll_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
postroll_button.set_name ("TransportButton");
preroll_clock.set_mode (AudioClock::MinSec);
preroll_clock.set_name ("TransportClockDisplay");
postroll_clock.set_mode (AudioClock::MinSec);
postroll_clock.set_name ("TransportClockDisplay");
/* alerts */
/* CANNOT bind these to clicked or toggled, must use pressed or released */
solo_alert_button.set_name ("TransportSoloAlert");
solo_alert_button.signal_pressed().connect (mem_fun(*this,&ARDOUR_UI::solo_alert_toggle));
auditioning_alert_button.set_name ("TransportAuditioningAlert");
auditioning_alert_button.signal_pressed().connect (mem_fun(*this,&ARDOUR_UI::audition_alert_toggle));
alert_box.pack_start (solo_alert_button);
alert_box.pack_start (auditioning_alert_button);
transport_tearoff_hbox.set_border_width (5);
transport_tearoff_hbox.pack_start (goto_start_button, false, false);
transport_tearoff_hbox.pack_start (goto_end_button, false, false);
Gtk::Frame* sframe = manage (new Frame);
Gtk::VBox* svbox = manage (new VBox);
Gtk::HBox* shbox = manage (new HBox);
sframe->set_shadow_type (Gtk::SHADOW_IN);
sframe->add (shuttle_box);
shuttle_box.set_name (X_("ShuttleControl"));
speed_display_box.add (speed_display_label);
set_size_request_to_display_given_text (speed_display_box, _("stopped"), 2, 2);
speed_display_box.set_name (X_("ShuttleDisplay"));
shuttle_units_button.set_name (X_("ShuttleButton"));
shuttle_units_button.signal_clicked().connect (mem_fun(*this, &ARDOUR_UI::shuttle_unit_clicked));
shuttle_style_button.set_name (X_("ShuttleButton"));
shuttle_style_button.signal_clicked().connect (mem_fun(*this, &ARDOUR_UI::shuttle_style_clicked));
Gtk::Frame* sdframe = manage (new Frame);
sdframe->set_shadow_type (Gtk::SHADOW_IN);
sdframe->add (speed_display_box);
shbox->pack_start (*sdframe, false, false);
shbox->pack_start (shuttle_units_button, true, true);
shbox->pack_start (shuttle_style_button, false, false);
svbox->pack_start (*sframe, false, false);
svbox->pack_start (*shbox, false, false);
transport_tearoff_hbox.pack_start (*svbox, false, false, 5);
transport_tearoff_hbox.pack_start (auto_loop_button, false, false);
transport_tearoff_hbox.pack_start (play_selection_button, false, false);
transport_tearoff_hbox.pack_start (roll_button, false, false);
transport_tearoff_hbox.pack_start (stop_button, false, false);
transport_tearoff_hbox.pack_start (rec_button, false, false, 10);
transport_tearoff_hbox.pack_start (primary_clock, false, false, 5);
transport_tearoff_hbox.pack_start (secondary_clock, false, false, 5);
transport_tearoff_hbox.pack_start (punch_in_button, false, false);
transport_tearoff_hbox.pack_start (punch_out_button, false, false);
transport_tearoff_hbox.pack_start (auto_input_button, false, false);
transport_tearoff_hbox.pack_start (auto_return_button, false, false);
transport_tearoff_hbox.pack_start (auto_play_button, false, false);
transport_tearoff_hbox.pack_start (click_button, false, false);
transport_tearoff_hbox.pack_start (follow_button, false, false);
/* desensitize */
set_transport_sensitivity (false);
/* catch up with editor state */
follow_changed ();
// transport_tearoff_hbox.pack_start (preroll_button, false, false);
// transport_tearoff_hbox.pack_start (preroll_clock, false, false);
// transport_tearoff_hbox.pack_start (postroll_button, false, false);
// transport_tearoff_hbox.pack_start (postroll_clock, false, false);
transport_tearoff_hbox.pack_start (alert_box, false, false, 5);
}
void
ARDOUR_UI::setup_clock ()
{
ARDOUR_UI::Clock.connect (bind (mem_fun (big_clock, &AudioClock::set), false));
big_clock_window = new ArdourDialog ("big clock window");
big_clock_window->set_border_width (0);
big_clock_window->add (big_clock);
big_clock_window->set_title (_("ardour: clock"));
big_clock_window->set_type_hint (Gdk::WINDOW_TYPE_HINT_MENU);
big_clock_window->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Gtk::Window*>(big_clock_window)));
big_clock_window->Hiding.connect (mem_fun(*this, &ARDOUR_UI::big_clock_hiding));
}
void
ARDOUR_UI::detach_tearoff (Gtk::Box* b, Gtk::Widget* w)
{
editor->ensure_float (*transport_tearoff->tearoff_window());
b->remove (*w);
}
void
ARDOUR_UI::reattach_tearoff (Gtk::Box* b, Gtk::Widget* w, int32_t n)
{
b->pack_start (*w);
b->reorder_child (*w, n);
}
void
ARDOUR_UI::soloing_changed (bool onoff)
{
if (solo_alert_button.get_active() != onoff) {
solo_alert_button.set_active (onoff);
}
}
void
ARDOUR_UI::_auditioning_changed (bool onoff)
{
if (auditioning_alert_button.get_active() != onoff) {
auditioning_alert_button.set_active (onoff);
set_transport_sensitivity (!onoff);
}
}
void
ARDOUR_UI::auditioning_changed (bool onoff)
{
Gtkmm2ext::UI::instance()->call_slot(bind (mem_fun(*this, &ARDOUR_UI::_auditioning_changed), onoff));
}
void
ARDOUR_UI::audition_alert_toggle ()
{
if (session) {
session->cancel_audition();
}
}
void
ARDOUR_UI::solo_alert_toggle ()
{
if (session) {
session->set_all_solo (!session->soloing());
}
}
void
ARDOUR_UI::solo_blink (bool onoff)
{
if (session == 0) {
return;
}
if (session->soloing()) {
if (onoff) {
solo_alert_button.set_state (Gtk::STATE_ACTIVE);
} else {
solo_alert_button.set_state (Gtk::STATE_NORMAL);
}
} else {
solo_alert_button.set_active (false);
solo_alert_button.set_state (Gtk::STATE_NORMAL);
}
}
void
ARDOUR_UI::audition_blink (bool onoff)
{
if (session == 0) {
return;
}
if (session->is_auditioning()) {
if (onoff) {
auditioning_alert_button.set_state (Gtk::STATE_ACTIVE);
} else {
auditioning_alert_button.set_state (Gtk::STATE_NORMAL);
}
} else {
auditioning_alert_button.set_active (false);
auditioning_alert_button.set_state (Gtk::STATE_NORMAL);
}
}
gint
ARDOUR_UI::shuttle_box_button_press (GdkEventButton* ev)
{
if (!session) {
return TRUE;
}
switch (ev->button) {
case 1:
shuttle_box.add_modal_grab ();
shuttle_grabbed = true;
mouse_shuttle (ev->x, true);
break;
case 2:
case 3:
return TRUE;
break;
case 4:
break;
case 5:
break;
}
return TRUE;
}
gint
ARDOUR_UI::shuttle_box_button_release (GdkEventButton* ev)
{
if (!session) {
return TRUE;
}
switch (ev->button) {
case 1:
mouse_shuttle (ev->x, true);
shuttle_grabbed = false;
shuttle_box.remove_modal_grab ();
if (shuttle_behaviour == Sprung) {
shuttle_fract = SHUTTLE_FRACT_SPEED1;
session->request_transport_speed (1.0);
shuttle_box.queue_draw ();
}
return TRUE;
case 2:
if (session->transport_rolling()) {
shuttle_fract = SHUTTLE_FRACT_SPEED1;
session->request_transport_speed (1.0);
} else {
shuttle_fract = 0;
}
shuttle_box.queue_draw ();
return TRUE;
case 3:
return TRUE;
case 4:
shuttle_fract += 0.005;
break;
case 5:
shuttle_fract -= 0.005;
break;
}
use_shuttle_fract (true);
return TRUE;
}
gint
ARDOUR_UI::shuttle_box_motion (GdkEventMotion* ev)
{
if (!session || !shuttle_grabbed) {
return TRUE;
}
return mouse_shuttle (ev->x, false);
}
gint
ARDOUR_UI::mouse_shuttle (double x, bool force)
{
double half_width = shuttle_box.get_width() / 2.0;
double distance = x - half_width;
if (distance > 0) {
distance = min (distance, half_width);
} else {
distance = max (distance, -half_width);
}
shuttle_fract = distance / half_width;
use_shuttle_fract (force);
return TRUE;
}
void
ARDOUR_UI::use_shuttle_fract (bool force)
{
struct timeval now;
struct timeval diff;
/* do not attempt to submit a motion-driven transport speed request
more than once per process cycle.
*/
gettimeofday (&now, 0);
timersub (&now, &last_shuttle_request, &diff);
if (!force && (diff.tv_usec + (diff.tv_sec * 1000000)) < engine->usecs_per_cycle()) {
return;
}
last_shuttle_request = now;
bool neg = (shuttle_fract < 0.0);
double fract = 1 - sqrt (1 - (shuttle_fract * shuttle_fract)); // Formula A1
if (neg) {
fract = -fract;
}
session->request_transport_speed (8.0 * fract); // Formula A2
shuttle_box.queue_draw ();
}
gint
ARDOUR_UI::shuttle_box_expose (GdkEventExpose* event)
{
gint x;
Glib::RefPtr<Gdk::Window> win (shuttle_box.get_window());
/* redraw the background */
win->draw_rectangle (shuttle_box.get_style()->get_bg_gc (shuttle_box.get_state()),
true,
event->area.x, event->area.y,
event->area.width, event->area.height);
x = (gint) floor ((shuttle_box.get_width() / 2.0) + (0.5 * (shuttle_box.get_width() * shuttle_fract)));
/* draw line */
win->draw_line (shuttle_box.get_style()->get_fg_gc (shuttle_box.get_state()),
x,
0,
x,
shuttle_box.get_height());
return TRUE;
}
void
ARDOUR_UI::shuttle_style_clicked ()
{
shuttle_style_menu->popup (1, 0);
}
void
ARDOUR_UI::shuttle_unit_clicked ()
{
shuttle_unit_menu->popup (1, 0);
}
void
ARDOUR_UI::set_shuttle_units (ShuttleUnits u)
{
switch ((shuttle_units = u)) {
case Percentage:
static_cast<Gtk::Label*>(shuttle_units_button.get_child())->set_text ("% ");
break;
case Semitones:
static_cast<Gtk::Label*>(shuttle_units_button.get_child())->set_text (_("st"));
break;
}
}
void
ARDOUR_UI::set_shuttle_behaviour (ShuttleBehaviour b)
{
switch ((shuttle_behaviour = b)) {
case Sprung:
static_cast<Gtk::Label*>(shuttle_style_button.get_child())->set_text (_("sprung"));
shuttle_fract = 0.0;
shuttle_box.queue_draw ();
if (session) {
if (session->transport_rolling()) {
shuttle_fract = SHUTTLE_FRACT_SPEED1;
session->request_transport_speed (1.0);
}
}
break;
case Wheel:
static_cast<Gtk::Label*>(shuttle_style_button.get_child())->set_text (_("wheel"));
break;
}
}
void
ARDOUR_UI::update_speed_display ()
{
if (!session) {
speed_display_label.set_text (_("stopped"));
return;
}
char buf[32];
float x = session->transport_speed ();
if (x != 0) {
if (shuttle_units == Percentage) {
snprintf (buf, sizeof (buf), "%.4f", x);
} else {
if (x < 0) {
snprintf (buf, sizeof (buf), "< %.1f", 12.0 * fast_log2 (-x));
} else {
snprintf (buf, sizeof (buf), "> %.1f", 12.0 * fast_log2 (x));
}
}
speed_display_label.set_text (buf);
} else {
speed_display_label.set_text (_("stopped"));
}
}
void
ARDOUR_UI::set_transport_sensitivity (bool yn)
{
goto_start_button.set_sensitive (yn);
goto_end_button.set_sensitive (yn);
roll_button.set_sensitive (yn);
stop_button.set_sensitive (yn);
play_selection_button.set_sensitive (yn);
rec_button.set_sensitive (yn);
auto_loop_button.set_sensitive (yn);
shuttle_box.set_sensitive (yn);
}
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