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livetrax/gtk2_ardour/luawindow.cc

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2016-02-23 09:42:13 -05:00
/*
Copyright (C) 2016 Robin Gareus <robin@gareus.org>
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.
*/
#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/window_title.h>
#include "ardour_ui.h"
#include "gui_thread.h"
#include "luainstance.h"
#include "luawindow.h"
#include "public_editor.h"
#include "utils.h"
#include "ardour/luabindings.h"
#include "LuaBridge/LuaBridge.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Gtk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace std;
LuaWindow* LuaWindow::_instance = 0;
LuaWindow*
LuaWindow::instance ()
{
if (!_instance) {
_instance = new LuaWindow;
}
return _instance;
}
LuaWindow::LuaWindow ()
: Window (Gtk::WINDOW_TOPLEVEL)
, VisibilityTracker (*((Gtk::Window*) this))
, _visible (false)
{
set_name ("Lua");
update_title ();
set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
set_border_width (0);
outtext.set_editable (false);
outtext.set_wrap_mode (Gtk::WRAP_WORD);
signal_delete_event().connect (sigc::mem_fun (*this, &LuaWindow::hide_window));
signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
scrollwin.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS);
scrollwin.add (outtext);
Gtk::Button *btn_clr = manage (new Button ("Clear"));
btn_clr->signal_clicked().connect (sigc::mem_fun(*this, &LuaWindow::clear_output));
Gtk::HBox *hbox = manage (new HBox());
hbox->pack_start (entry, true, true, 2);
hbox->pack_start (*btn_clr, false, false, 0);
Gtk::VBox *vbox = manage (new VBox());
vbox->pack_start (scrollwin, true, true, 0);
vbox->pack_start (*hbox, false, false, 2);
entry.signal_activate().connect (sigc::mem_fun (*this, &LuaWindow::entry_activated));
lua.Print.connect (sigc::mem_fun (*this, &LuaWindow::append_text));
vbox->show_all ();
add (*vbox);
set_size_request (640, 480); // XXX
LuaInstance::register_classes (lua.getState());
// TODO register some callback functions.
lua_State* L = lua.getState();
luabridge::push <PublicEditor *> (L, &PublicEditor::instance());
lua_setglobal (L, "Editor");
// TODO
// - allow to load files
// - allow to run files directly
// - history buffer
// - multi-line input ??
}
LuaWindow::~LuaWindow ()
{
}
void
LuaWindow::show_window ()
{
present();
_visible = true;
}
bool
LuaWindow::hide_window (GdkEventAny *ev)
{
if (!_visible) return 0;
_visible = false;
return just_hide_it (ev, static_cast<Gtk::Window *>(this));
}
void LuaWindow::set_session (Session* s)
{
SessionHandlePtr::set_session (s);
if (!_session) {
return;
}
update_title ();
_session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&LuaWindow::update_title, this), gui_context());
// expose "Session" point directly
lua_State* L = lua.getState();
LuaBindings::set_session (L, _session);
}
void
LuaWindow::session_going_away ()
{
ENSURE_GUI_THREAD (*this, &LuaWindow::session_going_away);
lua.do_command ("collectgarbage();");
//TODO: re-init lua-engine (drop all references) ??
SessionHandlePtr::session_going_away ();
_session = 0;
update_title ();
lua_State* L = lua.getState();
LuaBindings::set_session (L, _session);
}
void
LuaWindow::update_title ()
{
if (_session) {
string n;
if (_session->snap_name() != _session->name()) {
n = _session->snap_name ();
} else {
n = _session->name ();
}
if (_session->dirty ()) {
n = "*" + n;
}
WindowTitle title (n);
title += S_("Window|Lua");
title += Glib::get_application_name ();
set_title (title.get_string());
} else {
WindowTitle title (S_("Window|Lua"));
title += Glib::get_application_name ();
set_title (title.get_string());
}
}
void
LuaWindow::scroll_to_bottom ()
{
Gtk::Adjustment *adj;
adj = scrollwin.get_vadjustment();
adj->set_value (MAX(0,(adj->get_upper() - adj->get_page_size())));
}
void
LuaWindow::entry_activated ()
{
std::string cmd = entry.get_text();
append_text ("> " + cmd);
if (0 == lua.do_command (cmd)) {
entry.set_text("");
}
}
void
LuaWindow::append_text (std::string s)
{
Glib::RefPtr<Gtk::TextBuffer> tb (outtext.get_buffer());
tb->insert (tb->end(), s + "\n");
scroll_to_bottom ();
}
void
LuaWindow::clear_output ()
{
Glib::RefPtr<Gtk::TextBuffer> tb (outtext.get_buffer());
tb->set_text ("");
}