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livetrax/gtk2_ardour/meter_bridge.cc

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/*
Copyright (C) 2002 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 <ardour/session.h>
#include <ardour/session_route.h>
#include <ardour/diskstream.h>
#include <ardour/audio_track.h>
#include "ardour_ui.h"
#include "meter_bridge.h"
#include "meter_bridge_strip.h"
#include "utils.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace Gtk;
using namespace sigc;
#define FRAME_SHADOW_STYLE Gtk::SHADOW_IN
#define FRAME_NAME "BaseFrame"
MeterBridge::MeterBridge ()
: ArdourDialog ("meter bridge")
{
meter_base.set_name ("MeterBase");
meter_frame.set_shadow_type (FRAME_SHADOW_STYLE);
meter_frame.set_name (FRAME_NAME);
meter_frame.add (meter_base);
upper_metering_box.set_name ("AboveMeterZone");
lower_metering_box.set_name ("BelowMeterZone");
metering_vbox.set_spacing (5);
metering_vbox.set_border_width (10);
metering_vbox.pack_start (upper_metering_box, false, false);
metering_vbox.pack_start (meter_frame, false, false);
metering_vbox.pack_start (lower_metering_box, false, false);
metering_hbox.pack_start (metering_vbox, false, false);
meter_scroll_base.set_name ("MeterScrollBase");
meter_scroll_base.add (metering_hbox);
meter_viewport.add (meter_scroll_base);
meter_viewport.set_shadow_type (GTK_SHADOW_NONE);
meter_scroller.add (meter_viewport);
meter_scroller.set_name ("MeterBridgeWindow");
meter_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
meter_scroller.set_border_width (5);
add (meter_scroller);
add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
set_name ("MeterBridgeWindow");
set_title (_("ardour: meter bridge"));
set_wmclass (_("ardour_meter_bridge"), "Ardour");
// set_policy (false, false, false); // no user resizing of any kind
delete_event.connect (bind (ptr_fun (just_hide_it), static_cast<Gtk::Window*>(this)));
metering = false;
/* don't show: this window doesn't come up by default */
}
MeterBridge::~MeterBridge ()
{
stop_metering ();
}
void
MeterBridge::set_session (Session *s)
{
ArdourDialog::set_session (s);
if (session) {
// XXX this stuff has to be fixed if we ever use this code again
// (refs vs. ptrs)
// session->foreach_route (this, &MeterBridge::add_route);
session->RouteAdded.connect (mem_fun(*this, &MeterBridge::add_route));
session->going_away.connect (mem_fun(*this, &MeterBridge::session_gone));
start_metering ();
}
}
void
MeterBridge::session_gone ()
{
ENSURE_GUI_THREAD(mem_fun(*this, &MeterBridge::session_gone));
stop_metering ();
hide_all ();
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
upper_metering_box.remove ((*i)->above_box());
meter_base.remove ((*i)->meter_widget());
lower_metering_box.remove ((*i)->below_box());
// delete (*i);
}
meters.clear ();
ArdourDialog::session_gone();
}
void
MeterBridge::add_route (ARDOUR::Route* route)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &MeterBridge::add_route), route));
uint32_t n;
char buf[32];
if (!session || route->hidden() || dynamic_cast<AudioTrack*>(route) == 0) {
return;
}
n = meters.size();
snprintf (buf, sizeof (buf), "%u", n+1);
MeterBridgeStrip *meter = new MeterBridgeStrip (session->engine(),
*session,
*route,
buf,
session->over_length_long,
session->over_length_short,
200);
#define packing_factor 30
upper_metering_box.put (meter->above_box(), n * packing_factor, 0);
meter_base.put (meter->meter_widget(), (n * packing_factor) + (meter->meter_width()/2), 0);
lower_metering_box.put (meter->below_box(), n * packing_factor, 0);
meter->above_box().show_all ();
meter->meter_widget().show ();
meter->below_box().show_all ();
route->GoingAway.connect (bind (mem_fun(*this, &MeterBridge::remove_route), route));
meters.insert (meters.begin(), meter);
set_default_size (30 + ((n+1) * packing_factor), 315);
meter->set_meter_on(true);
session->going_away.connect (mem_fun(*this, &MeterBridge::session_gone));
}
void
MeterBridge::remove_route (Route* route)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &MeterBridge::remove_route), route));
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
if (&((*i)->route()) == route) {
delete *i;
meters.erase (i);
return;
}
}
}
void
MeterBridge::clear_all_meters ()
{
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
(*i)->clear_meter ();
}
}
void
MeterBridge::update ()
{
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
(*i)->update ();
}
}
void
MeterBridge::start_metering ()
{
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
(*i)->set_meter_on (true);
}
metering_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
(mem_fun(*this, &MeterBridge::update));
metering = true;
}
void
MeterBridge::stop_metering ()
{
list<MeterBridgeStrip *>::iterator i;
for (i = meters.begin(); i != meters.end(); ++i) {
(*i)->set_meter_on (false);
}
metering_connection.disconnect();
metering = false;
}
void
MeterBridge::toggle_metering ()
{
if (!metering) {
start_metering ();
} else {
stop_metering ();
}
}
gint
MeterBridge::map_event_impl (GdkEventAny *ev)
{
start_metering ();
return Window::map_event_impl (ev);
}
gint
MeterBridge::unmap_event_impl (GdkEventAny *ev)
{
stop_metering ();
return Window::unmap_event_impl (ev);
}