ardour/ardour
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expose Undo Commands to Lua

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Some trickery is needed here to manage object lifetimes and
multiple inheritance.
This commit is contained in:
Robin Gareus 2016-04-10 01:45:41 +02:00
parent fa7b15babf
commit 0e70b779b4
4 changed files with 50 additions and 8 deletions
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2
libs/ardour/ardour/session.h
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@ -862,6 +862,8 @@ class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::Scop
void add_command (Command *const cmd);
PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible>);
/** @return The list of operations that are currently in progress */
std::list<GQuark> const & current_operations () {
return _current_trans_quarks;

46
libs/ardour/luabindings.cc
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@ -16,7 +16,10 @@
675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm.h>
#include "timecode/bbt_time.h"
#include "pbd/stateful_diff_command.h"
#include "evoral/Control.hpp"
#include "evoral/ControlList.hpp"
#include "evoral/Range.hpp"
@ -107,16 +110,37 @@ LuaBindings::common (lua_State* L)
.beginClass <PBD::Stateful> ("Stateful")
.addFunction ("properties", &PBD::Stateful::properties)
.addFunction ("clear_changes", &PBD::Stateful::clear_changes)
.endClass ()
.beginWSPtrClass <PBD::Stateful> ("StatefulPtr")
.addFunction ("properties", &PBD::Stateful::properties)
.addFunction ("clear_changes", &PBD::Stateful::clear_changes)
.endClass ()
.deriveClass <PBD::StatefulDestructible, PBD::Stateful> ("StatefulDestructible")
.endClass ()
.beginWSPtrClass <PBD::Stateful> ("StatefulPtr")
.addFunction ("properties", &PBD::Stateful::properties)
.deriveWSPtrClass <PBD::StatefulDestructible, PBD::Stateful> ("StatefulDestructiblePtr")
.endClass ()
.deriveWSPtrClass <PBD::StatefulDestructible, PBD::Stateful> ("StatefulDestructiblePtr")
.deriveClass <Command, PBD::StatefulDestructible> ("Command")
.addFunction ("set_name", &Command::set_name)
.addFunction ("name", &Command::name)
.endClass ()
/* UndoTransaction::add_command() subscribes to DropReferences()
* and deletes the object.
*
* This object cannot be constructed by lua because lua would manage lifetime
* and delete the object leading to a double free.
*
* use Session::add_stateful_diff_command()
* and Session::abort_reversible_command()
*/
.deriveClass <PBD::StatefulDiffCommand, Command> ("StatefulDiffCommand")
.addFunction ("undo", &PBD::StatefulDiffCommand::undo)
.addFunction ("empty", &PBD::StatefulDiffCommand::empty)
.endClass ()
.deriveWSPtrClass <PBD::Controllable, PBD::StatefulDestructible> ("Controllable")
@ -260,6 +284,10 @@ LuaBindings::common (lua_State* L)
.endClass ()
.deriveWSPtrClass <SessionObject, PBD::StatefulDestructible> ("SessionObject")
/* multiple inheritance is not covered by luabridge,
* we need explicit casts :( */
.addCast<PBD::Stateful> ("to_stateful")
.addCast<PBD::StatefulDestructible> ("to_statefuldestructible")
.addFunction ("name", &SessionObject::name)
.endClass ()
@ -426,11 +454,8 @@ LuaBindings::common (lua_State* L)
.addData ("logarithmic", &ParameterDescriptor::logarithmic)
.endClass ()
.deriveWSPtrClass <Processor, SessionObject> ("Processor")
// TODO mult. inheritance
.endClass ()
.deriveWSPtrClass <Processor, Automatable> ("Processor")
.addCast<SessionObject> ("to_sessionobject")
.addCast<PluginInsert> ("to_insert")
.addCast<SideChain> ("to_sidechain")
.addCast<IOProcessor> ("to_ioprocessor")
@ -589,7 +614,7 @@ LuaBindings::common (lua_State* L)
.addStaticCFunction ("null", &LuaAPI::datatype_ctor_null) // "nil" is a lua reseved word
.addStaticCFunction ("audio", &LuaAPI::datatype_ctor_audio)
.addStaticCFunction ("midi", &LuaAPI::datatype_ctor_midi)
.addFunction ("to_string", &DataType::to_string)
.addFunction ("to_string", &DataType::to_string) // TODO Lua __tostring
// TODO add uint32_t cast, add operator== !=
.endClass()
@ -731,6 +756,10 @@ LuaBindings::common (lua_State* L)
.addFunction ("snap_name", &Session::snap_name)
.addFunction ("tempo_map", (TempoMap& (Session::*)())&Session::tempo_map)
.addFunction ("locations", &Session::locations)
.addFunction ("begin_reversible_command", (void (Session::*)(const std::string&))&Session::begin_reversible_command)
.addFunction ("commit_reversible_command", &Session::commit_reversible_command)
.addFunction ("abort_reversible_command", &Session::abort_reversible_command)
.addFunction ("add_stateful_diff_command", &Session::add_stateful_diff_command)
.endClass ()
.beginClass <RegionFactory> ("RegionFactory")
@ -755,6 +784,7 @@ LuaBindings::common (lua_State* L)
.addFunction ("new_plugin", ARDOUR::LuaAPI::new_plugin)
.addFunction ("set_processor_param", ARDOUR::LuaAPI::set_processor_param)
.addFunction ("set_plugin_insert_param", ARDOUR::LuaAPI::set_plugin_insert_param)
.addFunction ("usleep", Glib::usleep)
.endNamespace ()
.endNamespace ();// END ARDOUR

1
libs/ardour/session.cc
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@ -5898,6 +5898,7 @@ Session::write_one_track (Track& track, framepos_t start, framepos_t end,
}
unblock_processing ();
itt.done = true;
return result;
}

9
libs/ardour/session_state.cc
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@ -2614,6 +2614,15 @@ Session::add_command (Command* const cmd)
cmd->name ()));
_current_trans->add_command (cmd);
}
PBD::StatefulDiffCommand*
Session::add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd)
{
PBD::StatefulDiffCommand* cmd = new PBD::StatefulDiffCommand (sfd);
add_command (cmd);
return cmd;
}
void
Session::begin_reversible_command (const string& name)
{