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plugin_ui.cc

/*
    Copyright (C) 2000 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 <climits>
#include <cerrno>
#include <cmath>
#include <string>

#include <pbd/stl_delete.h>
#include <pbd/xml++.h>
#include <pbd/failed_constructor.h>

#include <gtkmm/widget.h>
#include <gtkmm2ext/click_box.h>
#include <gtkmm2ext/fastmeter.h>
#include <gtkmm2ext/barcontroller.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/doi.h>
#include <gtkmm2ext/slider_controller.h>

#include <midi++/manager.h>

#include <ardour/plugin.h>
#include <ardour/insert.h>
#include <ardour/ladspa_plugin.h>
#ifdef VST_SUPPORT
#include <ardour/vst_plugin.h>
#endif

#include <lrdf.h>

#include "ardour_ui.h"
#include "prompter.h"
#include "plugin_ui.h"
#include "utils.h"
#include "gui_thread.h"
#include "public_editor.h"

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace sigc;

PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, bool scrollable)
      : ArdourDialog ("plugin ui")
{
      bool have_gui = false;
      non_gtk_gui = false;

      if (insert->plugin()->has_editor()) {
            switch (insert->type()) {
            case ARDOUR::VST:
                  have_gui = create_vst_editor (insert);
                  break;

            case ARDOUR::AudioUnit:
                  have_gui = create_audiounit_editor (insert);
                  break;
                  
            case ARDOUR::LADSPA:
                  error << _("Eh? LADSPA plugins don't have editors!") << endmsg;
                  break;

            default:
#ifndef VST_SUPPORT
                  error << _("unknown type of editor-supplying plugin (note: no VST support in this version of ardour)")
                        << endmsg;
#else
                  error << _("unknown type of editor-supplying plugin")
                        << endmsg;
#endif
                  throw failed_constructor ();
            }

      } 

      if (!have_gui) {

            GenericPluginUI*  pu  = new GenericPluginUI (insert, scrollable);
            
            _pluginui = pu;
            get_vbox()->add (*pu);
            
            set_wmclass (X_("ardour_plugin_editor"), "Ardour");

            signal_map_event().connect (mem_fun (*pu, &GenericPluginUI::start_updating));
            signal_unmap_event().connect (mem_fun (*pu, &GenericPluginUI::stop_updating));
      }

      set_position (Gtk::WIN_POS_MOUSE);
      set_name ("PluginEditor");
      add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);

      signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window*> (this)), false);
      insert->GoingAway.connect (mem_fun(*this, &PluginUIWindow::plugin_going_away));

      gint h = _pluginui->get_preferred_height ();
      gint w = _pluginui->get_preferred_width ();

      if (scrollable) {
            if (h > 600) h = 600;
            if (w > 600) w = 600;

            if (w < 0) {
                  w = 450;
            }
      }

      set_default_size (w, h); 
}

PluginUIWindow::~PluginUIWindow ()
{
}

void
PluginUIWindow::on_show ()
{
      cerr << "PluginWindow shown\n";
            
      ArdourDialog::on_show ();
      Glib::ListHandle<Widget*> kids (get_vbox()->get_children());
      
      cerr << "send show to " << kids.size() << " children of this plugin UI\n";

      for (Glib::ListHandle<Widget*>::iterator x = kids.begin(); x != kids.end(); ++x) {
            cerr << "\tSend show to " << (*x) << endl;
            (*x)->show ();
      }
      cerr << "!! send done\n";
}

void
PluginUIWindow::on_hide ()
{
      cerr << "PluginWindow hidden\n";
      ArdourDialog::on_hide ();
}

bool
PluginUIWindow::create_vst_editor(boost::shared_ptr<PluginInsert> insert)
{
#ifndef VST_SUPPORT
      return false;
#else

      boost::shared_ptr<VSTPlugin> vp;

      if ((vp = boost::dynamic_pointer_cast<VSTPlugin> (insert->plugin())) == 0) {
            error << _("unknown type of editor-supplying plugin (note: no VST support in this version of ardour)")
                        << endmsg;
            throw failed_constructor ();
      } else {
            VSTPluginUI* vpu = new VSTPluginUI (insert, vp);
      
            _pluginui = vpu;
            get_vbox()->add (*vpu);
            vpu->package (*this);
      }

      non_gtk_gui = true;
      return true;
#endif
}

bool
PluginUIWindow::create_audiounit_editor (boost::shared_ptr<PluginInsert> insert)
{
#if !defined(HAVE_AUDIOUNITS) || !defined(GTKOSX)
      return false;
#else
      VBox* box;
      _pluginui = create_au_gui (insert, &box);
      cerr << "#*#*#*#*#*#*#*#*## PACK " << box << " INTO PLUGIN UI\n";
      get_vbox()->add (*box);
      non_gtk_gui = true;

      extern sigc::signal<void,bool> ApplicationActivationChanged;
      ApplicationActivationChanged.connect (mem_fun (*this, &PluginUIWindow::app_activated));

      return true;
#endif
}

void
PluginUIWindow::app_activated (bool yn)
{
#if defined (HAVE_AUDIOUNITS) && defined(GTKOSX)
      if (yn) {
            if (_pluginui) {
                  _pluginui->activate ();
            }
      }
      cerr << "APP activated ? " << yn << endl;
#endif
}

bool
PluginUIWindow::on_key_press_event (GdkEventKey* event)
{
      if (non_gtk_gui) {
            return false;
      }

      if (!key_press_focus_accelerator_handler (*this, event)) {
            return PublicEditor::instance().on_key_press_event(event);
      } else {
            return true;
      }
}

bool
PluginUIWindow::on_key_release_event (GdkEventKey* event)
{
      return true;
}

void
PluginUIWindow::plugin_going_away ()
{
      ENSURE_GUI_THREAD(mem_fun(*this, &PluginUIWindow::plugin_going_away));
      
      if (_pluginui) {
            _pluginui->stop_updating(0);
      }
      delete_when_idle (this);
}

PlugUIBase::PlugUIBase (boost::shared_ptr<PluginInsert> pi)
      : insert (pi),
        plugin (insert->plugin()),
        save_button(_("Add")),
        bypass_button (_("Bypass"))
{
        //combo.set_use_arrows_always(true);
      set_popdown_strings (combo, plugin->get_presets());
      combo.set_size_request (100, -1);
      combo.set_active_text ("");
      combo.signal_changed().connect(mem_fun(*this, &PlugUIBase::setting_selected));

      save_button.set_name ("PluginSaveButton");
      save_button.signal_clicked().connect(mem_fun(*this, &PlugUIBase::save_plugin_setting));

      bypass_button.set_name ("PluginBypassButton");
      bypass_button.signal_toggled().connect (mem_fun(*this, &PlugUIBase::bypass_toggled));
}

void
PlugUIBase::setting_selected()
{
      if (combo.get_active_text().length() > 0) {
            if (!plugin->load_preset(combo.get_active_text())) {
                  warning << string_compose(_("Plugin preset %1 not found"), combo.get_active_text()) << endmsg;
            }
      }

}

void
PlugUIBase::save_plugin_setting ()
{
      ArdourPrompter prompter (true);
      prompter.set_prompt(_("Name of New Preset:"));
      prompter.add_button (Gtk::Stock::ADD, Gtk::RESPONSE_ACCEPT);
      prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);

      prompter.show_all();

      switch (prompter.run ()) {
      case Gtk::RESPONSE_ACCEPT:

            string name;

            prompter.get_result(name);

            if (name.length()) {
                  if(plugin->save_preset(name)){
                        set_popdown_strings (combo, plugin->get_presets());
                        combo.set_active_text (name);
                  }
            }
            break;
      }
}

void
PlugUIBase::bypass_toggled ()
{
      bool x;

      if ((x = bypass_button.get_active()) == insert->active()) {
            insert->set_active (!x, this);
            if (insert->active()) {
                  bypass_button.set_label (_("Bypass"));
            } else {
                  bypass_button.set_label (_("Active"));
            }
      }
}


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