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plugin_selector.cc

/*
    Copyright (C) 2000-2006 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 <cstdio>
#include <lrdf.h>

#include <algorithm>

#include <gtkmm/table.h>
#include <gtkmm/stock.h>
#include <gtkmm/button.h>
#include <gtkmm/notebook.h>

#include <gtkmm2ext/utils.h>

#include <pbd/convert.h>

#include <ardour/plugin_manager.h>
#include <ardour/plugin.h>
#include <ardour/configuration.h>

#include "ardour_ui.h"
#include "plugin_selector.h"
#include "gui_thread.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace std;

static const char* _filter_mode_strings[] = {
      N_("Name contains"),
      N_("Type contains"),
      N_("Author contains"),
      N_("Library contains"),
      0
};

PluginSelector::PluginSelector (PluginManager *mgr)
      : ArdourDialog (_("ardour: plugins"), true, false),
        filter_button (Stock::CLEAR)
{
      set_position (Gtk::WIN_POS_MOUSE);
      set_name ("PluginSelectorWindow");
      add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);

      manager = mgr;
      session = 0;
      
      plugin_model = Gtk::ListStore::create (plugin_columns);
      plugin_display.set_model (plugin_model);
      plugin_display.append_column (_("Available Plugins"), plugin_columns.name);
      plugin_display.append_column (_("Type"), plugin_columns.type_name);
      plugin_display.append_column (_("Category"), plugin_columns.category);
      plugin_display.append_column (_("Creator"), plugin_columns.creator);
      plugin_display.append_column (_("# Inputs"),plugin_columns.ins);
      plugin_display.append_column (_("# Outputs"), plugin_columns.outs);
      plugin_display.set_headers_visible (true);
      plugin_display.set_headers_clickable (true);
      plugin_display.set_reorderable (false);
      scroller.set_border_width(10);
      scroller.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
      scroller.add(plugin_display);

      amodel = Gtk::ListStore::create(acols);
      added_list.set_model (amodel);
      added_list.append_column (_("Plugins to be connected"), acols.text);
      added_list.set_headers_visible (true);
      added_list.set_reorderable (false);

      for (int i = 0; i <=3; i++) {
            Gtk::TreeView::Column* column = plugin_display.get_column(i);
            column->set_sort_column(i);
      }

      ascroller.set_border_width(10);
      ascroller.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
      ascroller.add(added_list);
      btn_add = manage(new Gtk::Button(Stock::ADD));
      ARDOUR_UI::instance()->tooltips().set_tip(*btn_add, _("Add a plugin to the effect list"));
      btn_add->set_sensitive (false);
      btn_remove = manage(new Gtk::Button(Stock::REMOVE));
      btn_remove->set_sensitive (false);
      ARDOUR_UI::instance()->tooltips().set_tip(*btn_remove, _("Remove a plugin from the effect list"));
      Gtk::Button *btn_update = manage(new Gtk::Button(Stock::REFRESH));
      ARDOUR_UI::instance()->tooltips().set_tip(*btn_update, _("Update available plugins"));

      btn_add->set_name("PluginSelectorButton");
      btn_remove->set_name("PluginSelectorButton");

      Gtk::Table* table = manage(new Gtk::Table(7, 11));
      table->set_size_request(750, 500);
      table->attach(scroller, 0, 7, 0, 5);

      HBox* filter_box = manage (new HBox);

      vector<string> filter_strings = I18N (_filter_mode_strings);
      Gtkmm2ext::set_popdown_strings (filter_mode, filter_strings);
      filter_mode.set_active_text (filter_strings.front());

      filter_box->pack_start (filter_mode, false, false);
      filter_box->pack_start (filter_entry, true, true);
      filter_box->pack_start (filter_button, false, false);

      filter_entry.signal_changed().connect (mem_fun (*this, &PluginSelector::filter_entry_changed));
      filter_button.signal_clicked().connect (mem_fun (*this, &PluginSelector::filter_button_clicked));
      filter_mode.signal_changed().connect (mem_fun (*this, &PluginSelector::filter_mode_changed));

      filter_box->show ();
      filter_mode.show ();
      filter_entry.show ();
      filter_button.show ();

      table->attach (*filter_box, 0, 7, 5, 6, FILL|EXPAND, FILL, 5, 5);

      table->attach(*btn_add, 1, 2, 6, 7, FILL, FILL, 5, 5);
      table->attach(*btn_remove, 3, 4, 6, 7, FILL, FILL, 5, 5);
      table->attach(*btn_update, 5, 6, 6, 7, FILL, FILL, 5, 5);

      table->attach(ascroller, 0, 7, 8, 10);

      add_button (Stock::CANCEL, RESPONSE_CANCEL);
      add_button (_("Insert Plugin(s)"), RESPONSE_APPLY);
      set_default_response (RESPONSE_APPLY);
      set_response_sensitive (RESPONSE_APPLY, false);
      get_vbox()->pack_start (*table);

      table->set_name("PluginSelectorTable");
      plugin_display.set_name("PluginSelectorDisplay");
      //plugin_display.set_name("PluginSelectorList");
      added_list.set_name("PluginSelectorList");

      plugin_display.signal_button_press_event().connect_notify (mem_fun(*this, &PluginSelector::row_clicked));
      plugin_display.get_selection()->signal_changed().connect (mem_fun(*this, &PluginSelector::display_selection_changed));
      plugin_display.grab_focus();
      
      btn_update->signal_clicked().connect (mem_fun(*this, &PluginSelector::btn_update_clicked));
      btn_add->signal_clicked().connect(mem_fun(*this, &PluginSelector::btn_add_clicked));
      btn_remove->signal_clicked().connect(mem_fun(*this, &PluginSelector::btn_remove_clicked));
      added_list.get_selection()->signal_changed().connect (mem_fun(*this, &PluginSelector::added_list_selection_changed));

      refill ();
}

void
PluginSelector::row_clicked(GdkEventButton* event)
{
      if (event->type == GDK_2BUTTON_PRESS)
            btn_add_clicked();
}

void
PluginSelector::set_session (Session* s)
{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &PluginSelector::set_session), s));
      
      session = s;

      if (session) {
            session->GoingAway.connect (bind (mem_fun(*this, &PluginSelector::set_session), static_cast<Session*> (0)));
      }
}

bool
PluginSelector::show_this_plugin (const PluginInfoPtr& info, const std::string& filterstr)
{
      std::string compstr;
      std::string mode = filter_mode.get_active_text ();

      if (!filterstr.empty()) {
            
            if (mode == _("Name contains")) {
                  compstr = info->name;
            } else if (mode == _("Type contains")) {
                  compstr = info->category;
            } else if (mode == _("Author contains")) {
                  compstr = info->creator;
            } else if (mode == _("Library contains")) {
                  compstr = info->path;
            }
            
            transform (compstr.begin(), compstr.end(), compstr.begin(), ::toupper);

            if (compstr.find (filterstr) != string::npos) {
                  return true;
            } else {
                  return false;
            }
            
      }

      return true;
}

void
PluginSelector::setup_filter_string (string& filterstr)
{
      filterstr = filter_entry.get_text ();
      transform (filterstr.begin(), filterstr.end(), filterstr.begin(), ::toupper);
}     

void
PluginSelector::refill ()
{
      std::string filterstr;

      plugin_model->clear ();

      setup_filter_string (filterstr);

      ladspa_refiller (filterstr);
      lv2_refiller (filterstr);
      vst_refiller (filterstr);
      au_refiller (filterstr);
}

void
PluginSelector::refiller (const PluginInfoList& plugs, const::std::string& filterstr, const char* type)
{
      char buf[16];

      for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {

            if (show_this_plugin (*i, filterstr)) {

                  TreeModel::Row newrow = *(plugin_model->append());
                  newrow[plugin_columns.name] = (*i)->name;
                  newrow[plugin_columns.type_name] = type;
                  newrow[plugin_columns.category] = (*i)->category;


                  string creator = (*i)->creator;
                  string::size_type pos = 0;

                  /* stupid LADSPA creator strings */

                  while (pos < creator.length() && (isalnum (creator[pos]) || isspace (creator[pos]))) ++pos;
                  creator = creator.substr (0, pos);

                  newrow[plugin_columns.creator] = creator;

                  if ((*i)->n_inputs < 0) {
                        newrow[plugin_columns.ins] = "various";
                  } else {
                        snprintf (buf, sizeof(buf), "%d", (*i)->n_inputs);
                        newrow[plugin_columns.ins] = buf;
                  }
                  if ((*i)->n_outputs < 0) {
                        newrow[plugin_columns.outs] = "various";
                  } else {
                        snprintf (buf, sizeof(buf), "%d", (*i)->n_outputs);         
                        newrow[plugin_columns.outs] = buf;
                  }

                  newrow[plugin_columns.plugin] = *i;
            }
      }     
}

void
PluginSelector::ladspa_refiller (const std::string& filterstr)
{
      refiller (manager->ladspa_plugin_info(), filterstr, "LADSPA");
}

void
PluginSelector::lv2_refiller (const std::string& filterstr)
{
#ifdef HAVE_SLV2
      refiller (manager->lv2_plugin_info(), filterstr, "LV2");
#endif
}

void
PluginSelector::vst_refiller (const std::string& filterstr)
{
#ifdef VST_SUPPORT
      refiller (manager->vst_plugin_info(), filterstr, "VST");
#endif
}

void
PluginSelector::au_refiller (const std::string& filterstr)
{
#ifdef HAVE_AUDIOUNITS
      refiller (manager->au_plugin_info(), filterstr, "AU");
#endif
}

void
PluginSelector::use_plugin (PluginInfoPtr pi)
{
      if (session == 0) {
            return;
      }

      PluginPtr plugin = pi->load (*session);

      if (plugin) {
            PluginCreated (plugin);
      }
}

void
PluginSelector::btn_add_clicked()
{
      std::string name;
      PluginInfoPtr pi;
      TreeModel::Row newrow = *(amodel->append());
      TreeModel::Row row;

      row = *(plugin_display.get_selection()->get_selected());
      name = row[plugin_columns.name];
      pi = row[plugin_columns.plugin];

      newrow[acols.text] = name;
      newrow[acols.plugin] = pi;

      if (!amodel->children().empty()) {
            set_response_sensitive (RESPONSE_APPLY, true);
      }
}

void
PluginSelector::btn_remove_clicked()
{
      TreeModel::iterator iter = added_list.get_selection()->get_selected();
      
      amodel->erase(iter);
      if (amodel->children().empty()) {
            set_response_sensitive (RESPONSE_APPLY, false);
      }
}

void
PluginSelector::btn_update_clicked()
{
      manager->refresh ();
      refill();
}

void
PluginSelector::display_selection_changed()
{
      if (plugin_display.get_selection()->count_selected_rows() != 0) {
            btn_add->set_sensitive (true);
      } else {
            btn_add->set_sensitive (false);
      }
}

void
PluginSelector::added_list_selection_changed()
{
      if (added_list.get_selection()->count_selected_rows() != 0) {
            btn_remove->set_sensitive (true);
      } else {
            btn_remove->set_sensitive (false);
      }
}

int
PluginSelector::run ()
{
      ResponseType r;
      TreeModel::Children::iterator i;

      r = (ResponseType) Dialog::run ();

      switch (r) {
      case RESPONSE_APPLY:
            for (i = amodel->children().begin(); i != amodel->children().end(); ++i) {
                  PluginInfoPtr pp = (*i)[acols.plugin];
                  use_plugin (pp);
            }
            break;

      default:
            break;
      }

      cleanup ();

      return (int) r;
}

void
PluginSelector::cleanup ()
{
      hide();
      amodel->clear();
}

void
PluginSelector::filter_button_clicked ()
{
      filter_entry.set_text ("");
}

void
PluginSelector::filter_entry_changed ()
{
      refill ();
}

void 
PluginSelector::filter_mode_changed ()
{
      refill ();
}


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