src/gigedit/mainwindow.cpp

/*
 * Copyright (C) 2006-2019 Andreas Persson
 *
 * 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, 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 program; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include <iostream>
#include <cstring>

#include "compat.h"

#include <glibmm/convert.h>
#include <glibmm/dispatcher.h>
#include <glibmm/miscutils.h>
#include <glibmm/stringutils.h>
#include <glibmm/regex.h>
#include <gtkmm/aboutdialog.h>
#include <gtkmm/filechooserdialog.h>
#include <gtkmm/messagedialog.h>
#if HAS_GTKMM_STOCK
# include <gtkmm/stock.h>
#endif
#include <gtkmm/targetentry.h>
#include <gtkmm/main.h>
#if GTKMM_MAJOR_VERSION < 3 || (GTKMM_MAJOR_VERSION == 3 && GTKMM_MINOR_VERSION < 89)
# include <gtkmm/toggleaction.h>
#endif
#include <gtkmm/accelmap.h>
#if GTKMM_MAJOR_VERSION < 3
#include "wrapLabel.hh"
#endif

#include "global.h"
#include "compat.h"

#include <stdio.h>
#ifdef LIBSNDFILE_HEADER_FILE
# include LIBSNDFILE_HEADER_FILE(sndfile.h)
#else
# include <sndfile.h>
#endif
#include <assert.h>

#include "mainwindow.h"
#include "Settings.h"
#include "CombineInstrumentsDialog.h"
#include "scripteditor.h"
#include "scriptslots.h"
#include "ReferencesView.h"
#include "../../gfx/status_attached.xpm"
#include "../../gfx/status_detached.xpm"
#include "gfx/builtinpix.h"
#include "MacroEditor.h"
#include "MacrosSetup.h"
#if defined(__APPLE__)
# include "MacHelper.h"
#endif

static const Gdk::ModifierType primaryModifierKey =
    #if defined(__APPLE__)
    Gdk::META_MASK; // Cmd key on Mac
    #else
    Gdk::CONTROL_MASK; // Ctrl key on all other OSs
    #endif

MainWindow::MainWindow() :
    m_DimRegionChooser(*this),
    dimreg_label(_("Changes apply to:")),
    dimreg_all_regions(_("all regions")),
    dimreg_all_dimregs(_("all dimension splits")),
    dimreg_stereo(_("both channels")),
    labelLegend(_("Legend:")),
    labelNoSample(_(" No Sample")),
    labelMissingSample(_(" Missing some Sample(s)")),
    labelLooped(_(" Looped")),
    labelSomeLoops(_(" Some Loop(s)"))
{
    loadBuiltInPix();

    this->file = NULL;

//    set_border_width(5);

    if (!Settings::singleton()->autoRestoreWindowDimension) {
#if GTKMM_MAJOR_VERSION >= 3
        set_default_size(895, 600);
#else
        set_default_size(800, 600);
#endif
        set_position(Gtk::WIN_POS_CENTER);
    }

    add(m_VBox);

    // Handle selection
    m_TreeView.get_selection()->signal_changed().connect(
        sigc::mem_fun(*this, &MainWindow::on_sel_change));

    // m_TreeView.set_reorderable();

#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && (GTKMM_MINOR_VERSION > 91 || (GTKMM_MINOR_VERSION == 91 && GTKMM_MICRO_VERSION >= 2))) // GTKMM >= 3.91.2
    m_TreeView.signal_button_press_event().connect(
        sigc::mem_fun(*this, &MainWindow::on_button_release));
#else
    m_TreeView.signal_button_press_event().connect_notify(
        sigc::mem_fun(*this, &MainWindow::on_button_release));
#endif

    // Add the TreeView tab, inside a ScrolledWindow, with the button underneath:
    m_ScrolledWindow.add(m_TreeView);
//    m_ScrolledWindow.set_size_request(200, 600);
    m_ScrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

    m_ScrolledWindowSamples.add(m_TreeViewSamples);
    m_ScrolledWindowSamples.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

    m_ScrolledWindowScripts.add(m_TreeViewScripts);
    m_ScrolledWindowScripts.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

#if GTKMM_MAJOR_VERSION < 3
    m_TreeViewNotebook.set_size_request(300);
#endif

    m_searchLabel.set_text(Glib::ustring(" ") + _("Filter:"));
    m_searchField.pack_start(m_searchLabel, Gtk::PACK_SHRINK);
    m_searchField.pack_start(m_searchText);
    m_searchField.set_spacing(5);

    m_left_vbox.pack_start(m_TreeViewNotebook);
    m_left_vbox.pack_start(m_searchField, Gtk::PACK_SHRINK);

    m_HPaned.add1(m_left_vbox);

    dimreg_hbox.add(dimreg_label);
    dimreg_hbox.add(dimreg_all_regions);
    dimreg_hbox.add(dimreg_all_dimregs);
    dimreg_stereo.set_active();
    dimreg_hbox.add(dimreg_stereo);
    dimreg_vbox.add(dimreg_edit);
    dimreg_vbox.pack_start(dimreg_hbox, Gtk::PACK_SHRINK);
    {
        legend_hbox.add(labelLegend);

        imageNoSample.set(redDot);
#if HAS_GTKMM_ALIGNMENT
        imageNoSample.set_alignment(Gtk::ALIGN_END);
        labelNoSample.set_alignment(Gtk::ALIGN_START);
#else
        imageNoSample.set_halign(Gtk::ALIGN_END);
        labelNoSample.set_halign(Gtk::ALIGN_START);
#endif
        legend_hbox.add(imageNoSample);
        legend_hbox.add(labelNoSample);

        imageMissingSample.set(yellowDot);
#if HAS_GTKMM_ALIGNMENT
        imageMissingSample.set_alignment(Gtk::ALIGN_END);
        labelMissingSample.set_alignment(Gtk::ALIGN_START);
#else
        imageMissingSample.set_halign(Gtk::ALIGN_END);
        labelMissingSample.set_halign(Gtk::ALIGN_START);
#endif
        legend_hbox.add(imageMissingSample);
        legend_hbox.add(labelMissingSample);

        imageLooped.set(blackLoop);
#if HAS_GTKMM_ALIGNMENT
        imageLooped.set_alignment(Gtk::ALIGN_END);
        labelLooped.set_alignment(Gtk::ALIGN_START);
#else
        imageLooped.set_halign(Gtk::ALIGN_END);
        labelLooped.set_halign(Gtk::ALIGN_START);
#endif
        legend_hbox.add(imageLooped);
        legend_hbox.add(labelLooped);

        imageSomeLoops.set(grayLoop);
#if HAS_GTKMM_ALIGNMENT
        imageSomeLoops.set_alignment(Gtk::ALIGN_END);
        labelSomeLoops.set_alignment(Gtk::ALIGN_START);
#else
        imageSomeLoops.set_halign(Gtk::ALIGN_END);
        labelSomeLoops.set_halign(Gtk::ALIGN_START);
#endif
        legend_hbox.add(imageSomeLoops);
        legend_hbox.add(labelSomeLoops);

#if HAS_GTKMM_SHOW_ALL_CHILDREN
        legend_hbox.show_all_children();
#endif
    }
    dimreg_vbox.pack_start(legend_hbox, Gtk::PACK_SHRINK);
    m_HPaned.add2(dimreg_vbox);

    dimreg_label.set_tooltip_text(_("To automatically apply your changes above globally to the entire instrument, check all 3 check boxes on the right."));
    dimreg_all_regions.set_tooltip_text(_("If checked: all changes you perform above will automatically be applied to all regions of this instrument as well."));
    dimreg_all_dimregs.set_tooltip_text(_("If checked: all changes you perform above will automatically be applied as well to all dimension splits of the region selected below."));
    dimreg_stereo.set_tooltip_text(_("If checked: all changes you perform above will automatically be applied to both audio channel splits (only if a \"stereo\" dimension is defined below)."));

    m_TreeViewNotebook.append_page(m_ScrolledWindowSamples, _("Samples"));
    m_TreeViewNotebook.append_page(m_ScrolledWindow, _("Instruments"));
    m_TreeViewNotebook.append_page(m_ScrolledWindowScripts, _("Scripts"));

#if USE_GLIB_ACTION
    m_actionGroup = Gio::SimpleActionGroup::create();
    m_actionGroup->add_action(
        "New", sigc::mem_fun(*this, &MainWindow::on_action_file_new)
    );
    m_actionGroup->add_action(
        "Open", sigc::mem_fun(*this, &MainWindow::on_action_file_open)
    );
    m_actionGroup->add_action(
        "Save", sigc::mem_fun(*this, &MainWindow::on_action_file_save)
    );
    m_actionGroup->add_action(
        "SaveAs", sigc::mem_fun(*this, &MainWindow::on_action_file_save_as)
    );
    m_actionGroup->add_action(
        "Properties", sigc::mem_fun(*this, &MainWindow::on_action_file_properties)
    );
    m_actionGroup->add_action(
        "InstrProperties", sigc::mem_fun(*this, &MainWindow::show_instr_props)
    );
    m_actionMIDIRules = m_actionGroup->add_action(
        "MidiRules", sigc::mem_fun(*this, &MainWindow::show_midi_rules)
    );
    m_actionGroup->add_action(
        "ScriptSlots", sigc::mem_fun(*this, &MainWindow::show_script_slots)
    );
    m_actionGroup->add_action(
        "Quit", sigc::mem_fun(*this, &MainWindow::on_action_quit)
    );
    m_actionGroup->add_action(
        "MenuSample", sigc::mem_fun(*this, &MainWindow::show_samples_tab)
    );
    m_actionGroup->add_action(
        "MenuInstrument", sigc::mem_fun(*this, &MainWindow::show_intruments_tab)
    );
    m_actionGroup->add_action(
        "MenuScript", sigc::mem_fun(*this, &MainWindow::show_scripts_tab)
    );
#else
    actionGroup = Gtk::ActionGroup::create();

    actionGroup->add(Gtk::Action::create("MenuFile", _("_File")));
    actionGroup->add(Gtk::Action::create("New", Gtk::Stock::NEW),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_file_new));
    Glib::RefPtr<Gtk::Action> action =
        Gtk::Action::create("Open", Gtk::Stock::OPEN);
    action->property_label() = action->property_label() + "...";
    actionGroup->add(action,
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_file_open));
    actionGroup->add(Gtk::Action::create("Save", Gtk::Stock::SAVE),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_file_save));
    action = Gtk::Action::create("SaveAs", Gtk::Stock::SAVE_AS);
    action->property_label() = action->property_label() + "...";
    actionGroup->add(action,
                     Gtk::AccelKey("<shift><control>s"),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_file_save_as));
    actionGroup->add(Gtk::Action::create("Properties",
                                         Gtk::Stock::PROPERTIES),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_file_properties));
    actionGroup->add(Gtk::Action::create("InstrProperties",
                                         Gtk::Stock::PROPERTIES),
                     sigc::mem_fun(
                         *this, &MainWindow::show_instr_props));
    actionGroup->add(Gtk::Action::create("MidiRules",
                                         _("_Midi Rules...")),
                     sigc::mem_fun(
                         *this, &MainWindow::show_midi_rules));
    actionGroup->add(Gtk::Action::create("ScriptSlots",
                                         _("_Script Slots...")),
                     sigc::mem_fun(
                         *this, &MainWindow::show_script_slots));
    actionGroup->add(Gtk::Action::create("Quit", Gtk::Stock::QUIT),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_quit));
    actionGroup->add(
        Gtk::Action::create("MenuSample", _("_Sample")),
        sigc::mem_fun(*this, &MainWindow::show_samples_tab)
    );
    actionGroup->add(
        Gtk::Action::create("MenuInstrument", _("_Instrument")),
        sigc::mem_fun(*this, &MainWindow::show_intruments_tab)
    );
    actionGroup->add(
        Gtk::Action::create("MenuScript", _("Scr_ipt")),
        sigc::mem_fun(*this, &MainWindow::show_scripts_tab)
    );
    actionGroup->add(Gtk::Action::create("AllInstruments", _("_Select")));
    actionGroup->add(Gtk::Action::create("AssignScripts", _("Assign Script")));

    actionGroup->add(Gtk::Action::create("MenuEdit", _("_Edit")));
#endif

    const Gdk::ModifierType primaryModifierKey =
#if defined(__APPLE__)
    Gdk::META_MASK; // Cmd key on Mac
#else
    Gdk::CONTROL_MASK; // Ctrl key on all other OSs
#endif

#if USE_GLIB_ACTION
    m_actionCopyDimRgn = m_actionGroup->add_action(
        "CopyDimRgn", sigc::mem_fun(*this, &MainWindow::copy_selected_dimrgn)
    );
    m_actionPasteDimRgn = m_actionGroup->add_action(
        "PasteDimRgn", sigc::mem_fun(*this, &MainWindow::paste_copied_dimrgn)
    );
    m_actionAdjustClipboard = m_actionGroup->add_action(
        "AdjustClipboard", sigc::mem_fun(*this, &MainWindow::adjust_clipboard_content)
    );
    m_actionGroup->add_action(
        "SelectPrevInstr", sigc::mem_fun(*this, &MainWindow::select_prev_instrument)
    );
    m_actionGroup->add_action(
        "SelectNextInstr", sigc::mem_fun(*this, &MainWindow::select_next_instrument)
    );
    m_actionGroup->add_action(
        "SelectPrevRegion", sigc::mem_fun(*this, &MainWindow::select_prev_region)
    );
    m_actionGroup->add_action(
        "SelectNextRegion", sigc::mem_fun(*this, &MainWindow::select_next_region)
    );
    m_actionGroup->add_action(
        "SelectPrevDimRgnZone", sigc::mem_fun(*this, &MainWindow::select_prev_dim_rgn_zone)
    );
    m_actionGroup->add_action(
        "SelectNextDimRgnZone", sigc::mem_fun(*this, &MainWindow::select_next_dim_rgn_zone)
    );
    m_actionGroup->add_action(
        "SelectPrevDimension", sigc::mem_fun(*this, &MainWindow::select_prev_dimension)
    );
    m_actionGroup->add_action(
        "SelectNextDimension", sigc::mem_fun(*this, &MainWindow::select_next_dimension)
    );
    m_actionGroup->add_action(
        "SelectAddPrevDimRgnZone", sigc::mem_fun(*this, &MainWindow::select_add_prev_dim_rgn_zone)
    );
    m_actionGroup->add_action(
        "SelectAddNextDimRgnZone", sigc::mem_fun(*this, &MainWindow::select_add_next_dim_rgn_zone)
    );
#else
    actionGroup->add(Gtk::Action::create("CopyDimRgn",
                                         _("Copy selected dimension region")),
                     Gtk::AccelKey(GDK_KEY_c, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::copy_selected_dimrgn));

    actionGroup->add(Gtk::Action::create("PasteDimRgn",
                                         _("Paste dimension region")),
                     Gtk::AccelKey(GDK_KEY_v, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::paste_copied_dimrgn));

    actionGroup->add(Gtk::Action::create("AdjustClipboard",
                                         _("Adjust Clipboard Content")),
                     Gtk::AccelKey(GDK_KEY_x, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::adjust_clipboard_content));

    actionGroup->add(Gtk::Action::create("SelectPrevInstr",
                                         _("Select Previous Instrument")),
                     Gtk::AccelKey(GDK_KEY_Up, primaryModifierKey),
                     sigc::mem_fun(*this, &MainWindow::select_prev_instrument));

    actionGroup->add(Gtk::Action::create("SelectNextInstr",
                                         _("Select Next Instrument")),
                     Gtk::AccelKey(GDK_KEY_Down, primaryModifierKey),
                     sigc::mem_fun(*this, &MainWindow::select_next_instrument));

    actionGroup->add(Gtk::Action::create("SelectPrevRegion",
                                         _("Select Previous Region")),
                     Gtk::AccelKey(GDK_KEY_Left, primaryModifierKey),
                     sigc::mem_fun(*this, &MainWindow::select_prev_region));

    actionGroup->add(Gtk::Action::create("SelectNextRegion",
                                         _("Select Next Region")),
                     Gtk::AccelKey(GDK_KEY_Right, primaryModifierKey),
                     sigc::mem_fun(*this, &MainWindow::select_next_region));

    actionGroup->add(Gtk::Action::create("SelectPrevDimRgnZone",
                                         _("Select Previous Dimension Region Zone")),
                     Gtk::AccelKey(GDK_KEY_Left, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_prev_dim_rgn_zone));

    actionGroup->add(Gtk::Action::create("SelectNextDimRgnZone",
                                         _("Select Next Dimension Region Zone")),
                     Gtk::AccelKey(GDK_KEY_Right, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_next_dim_rgn_zone));

    actionGroup->add(Gtk::Action::create("SelectPrevDimension",
                                         _("Select Previous Dimension")),
                     Gtk::AccelKey(GDK_KEY_Up, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_prev_dimension));

    actionGroup->add(Gtk::Action::create("SelectNextDimension",
                                         _("Select Next Dimension")),
                     Gtk::AccelKey(GDK_KEY_Down, Gdk::MOD1_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_next_dimension));

    actionGroup->add(Gtk::Action::create("SelectAddPrevDimRgnZone",
                                         _("Add Previous Dimension Region Zone to Selection")),
                     Gtk::AccelKey(GDK_KEY_Left, Gdk::MOD1_MASK | Gdk::SHIFT_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_add_prev_dim_rgn_zone));

    actionGroup->add(Gtk::Action::create("SelectAddNextDimRgnZone",
                                         _("Add Next Dimension Region Zone to Selection")),
                     Gtk::AccelKey(GDK_KEY_Right, Gdk::MOD1_MASK | Gdk::SHIFT_MASK),
                     sigc::mem_fun(*this, &MainWindow::select_add_next_dim_rgn_zone));
#endif

#if USE_GLIB_ACTION
    m_actionToggleCopySampleUnity = m_actionGroup->add_action_bool("CopySampleUnity", true);
    m_actionToggleCopySampleTune  = m_actionGroup->add_action_bool("CopySampleTune", true);
    m_actionToggleCopySampleLoop  = m_actionGroup->add_action_bool("CopySampleLoop", true);
#else
    Glib::RefPtr<Gtk::ToggleAction> toggle_action =
        Gtk::ToggleAction::create("CopySampleUnity", _("Copy Sample's _Unity Note"));
    toggle_action->set_active(true);
    actionGroup->add(toggle_action);

    toggle_action =
        Gtk::ToggleAction::create("CopySampleTune", _("Copy Sample's _Fine Tune"));
    toggle_action->set_active(true);
    actionGroup->add(toggle_action);

    toggle_action =
        Gtk::ToggleAction::create("CopySampleLoop", _("Copy Sample's _Loop Points"));
    toggle_action->set_active(true);
    actionGroup->add(toggle_action);
#endif

#if USE_GLIB_ACTION
    m_actionToggleStatusBar =
        m_actionGroup->add_action_bool("Statusbar", sigc::mem_fun(*this, &MainWindow::on_action_view_status_bar), true);
    m_actionToggleRestoreWinDim =
        m_actionGroup->add_action_bool("AutoRestoreWinDim", sigc::mem_fun(*this, &MainWindow::on_auto_restore_win_dim), Settings::singleton()->autoRestoreWindowDimension);
    m_actionToggleShowTooltips = m_actionGroup->add_action_bool(
        "ShowTooltips", sigc::mem_fun(*this, &MainWindow::on_action_show_tooltips),
        Settings::singleton()->showTooltips
    );
    m_actionToggleSaveWithTempFile =
        m_actionGroup->add_action_bool("SaveWithTemporaryFile", sigc::mem_fun(*this, &MainWindow::on_save_with_temporary_file), Settings::singleton()->saveWithTemporaryFile);
    m_actionGroup->add_action("RefreshAll", sigc::mem_fun(*this, &MainWindow::on_action_refresh_all));
#else
    actionGroup->add(Gtk::Action::create("MenuMacro", _("_Macro")));


    actionGroup->add(Gtk::Action::create("MenuView", _("Vie_w")));
    toggle_action =
        Gtk::ToggleAction::create("Statusbar", _("_Statusbar"));
    toggle_action->set_active(true);
    actionGroup->add(toggle_action,
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_view_status_bar));

    toggle_action =
        Gtk::ToggleAction::create("AutoRestoreWinDim", _("_Auto Restore Window Dimension"));
    toggle_action->set_active(Settings::singleton()->autoRestoreWindowDimension);
    actionGroup->add(toggle_action,
                     sigc::mem_fun(
                         *this, &MainWindow::on_auto_restore_win_dim));

    toggle_action =
        Gtk::ToggleAction::create("ShowTooltips", _("Tooltips for Beginners"));
    toggle_action->set_active(Settings::singleton()->showTooltips);
    actionGroup->add(
        toggle_action,
        sigc::mem_fun(*this, &MainWindow::on_action_show_tooltips)
    );

    toggle_action =
        Gtk::ToggleAction::create("SaveWithTemporaryFile", _("Save with _temporary file"));
    toggle_action->set_active(Settings::singleton()->saveWithTemporaryFile);
    actionGroup->add(toggle_action,
                     sigc::mem_fun(
                         *this, &MainWindow::on_save_with_temporary_file));

    actionGroup->add(
        Gtk::Action::create("RefreshAll", _("_Refresh All")),
        sigc::mem_fun(*this, &MainWindow::on_action_refresh_all)
    );                 
#endif

#if USE_GLIB_ACTION
    m_actionGroup->add_action(
        "About", sigc::mem_fun(*this, &MainWindow::on_action_help_about)
    );
    m_actionGroup->add_action(
        "AddInstrument", sigc::mem_fun(*this, &MainWindow::on_action_add_instrument)
    );
    m_actionGroup->add_action(
        "DupInstrument", sigc::mem_fun(*this, &MainWindow::on_action_duplicate_instrument)
    );
    m_actionGroup->add_action(
        "CombInstruments", sigc::mem_fun(*this, &MainWindow::on_action_combine_instruments)
    );
    m_actionGroup->add_action(
        "RemoveInstrument", sigc::mem_fun(*this, &MainWindow::on_action_remove_instrument)
    );
#else
    action = Gtk::Action::create("MenuHelp", Gtk::Stock::HELP);
    actionGroup->add(Gtk::Action::create("MenuHelp",
                                         action->property_label()));
    actionGroup->add(Gtk::Action::create("About", Gtk::Stock::ABOUT),
                     sigc::mem_fun(
                         *this, &MainWindow::on_action_help_about));
    actionGroup->add(
        Gtk::Action::create("AddInstrument", _("Add _Instrument")),
        sigc::mem_fun(*this, &MainWindow::on_action_add_instrument)
    );
    actionGroup->add(
        Gtk::Action::create("DupInstrument", _("_Duplicate Instrument")),
        sigc::mem_fun(*this, &MainWindow::on_action_duplicate_instrument)
    );
    actionGroup->add(
        Gtk::Action::create("CombInstruments", _("_Combine Instruments ...")),
        Gtk::AccelKey(GDK_KEY_j, primaryModifierKey),
        sigc::mem_fun(*this, &MainWindow::on_action_combine_instruments)
    );
    actionGroup->add(
        Gtk::Action::create("RemoveInstrument", Gtk::Stock::REMOVE),
        sigc::mem_fun(*this, &MainWindow::on_action_remove_instrument)
    );
#endif

#if USE_GLIB_ACTION
    m_actionToggleWarnOnExtensions = m_actionGroup->add_action_bool(
        "WarnUserOnExtensions", sigc::mem_fun(*this, &MainWindow::on_action_warn_user_on_extensions),
        Settings::singleton()->warnUserOnExtensions
    );
    m_actionToggleSyncSamplerSelection = m_actionGroup->add_action_bool(
        "SyncSamplerInstrumentSelection", sigc::mem_fun(*this, &MainWindow::on_action_sync_sampler_instrument_selection),
        Settings::singleton()->syncSamplerInstrumentSelection
    );
    m_actionToggleMoveRootNoteWithRegion = m_actionGroup->add_action_bool(
        "MoveRootNoteWithRegionMoved", sigc::mem_fun(*this, &MainWindow::on_action_move_root_note_with_region_moved),
        Settings::singleton()->moveRootNoteWithRegionMoved
    );
#else
    actionGroup->add(Gtk::Action::create("MenuSettings", _("_Settings")));
    
    toggle_action =
        Gtk::ToggleAction::create("WarnUserOnExtensions", _("Show warning on format _extensions"));
    toggle_action->set_active(Settings::singleton()->warnUserOnExtensions);
    actionGroup->add(
        toggle_action,
        sigc::mem_fun(*this, &MainWindow::on_action_warn_user_on_extensions)
    );

    toggle_action =
        Gtk::ToggleAction::create("SyncSamplerInstrumentSelection", _("Synchronize sampler's instrument selection"));
    toggle_action->set_active(Settings::singleton()->syncSamplerInstrumentSelection);
    actionGroup->add(
        toggle_action,
        sigc::mem_fun(*this, &MainWindow::on_action_sync_sampler_instrument_selection)
    );

    toggle_action =
        Gtk::ToggleAction::create("MoveRootNoteWithRegionMoved", _("Move root note with region moved"));
    toggle_action->set_active(Settings::singleton()->moveRootNoteWithRegionMoved);
    actionGroup->add(
        toggle_action,
        sigc::mem_fun(*this, &MainWindow::on_action_move_root_note_with_region_moved)
    );
#endif

#if USE_GLIB_ACTION
    m_actionGroup->add_action(
        "CombineInstruments", sigc::mem_fun(*this, &MainWindow::on_action_combine_instruments)
    );
    m_actionGroup->add_action(
        "MergeFiles", sigc::mem_fun(*this, &MainWindow::on_action_merge_files)
    );
#else
    actionGroup->add(Gtk::Action::create("MenuTools", _("_Tools")));

    actionGroup->add(
        Gtk::Action::create("CombineInstruments", _("_Combine Instruments...")),
        sigc::mem_fun(*this, &MainWindow::on_action_combine_instruments)
    );

    actionGroup->add(
        Gtk::Action::create("MergeFiles", _("_Merge Files...")),
        sigc::mem_fun(*this, &MainWindow::on_action_merge_files)
    );
#endif

    // sample right-click popup actions
#if USE_GLIB_ACTION
    m_actionSampleProperties = m_actionGroup->add_action(
        "SampleProperties", sigc::mem_fun(*this, &MainWindow::on_action_sample_properties)
    );
    m_actionAddSampleGroup = m_actionGroup->add_action(
        "AddGroup", sigc::mem_fun(*this, &MainWindow::on_action_add_group)
    );
    m_actionAddSample = m_actionGroup->add_action(
        "AddSample", sigc::mem_fun(*this, &MainWindow::on_action_add_sample)
    );
    m_actionRemoveSample = m_actionGroup->add_action(
        "RemoveSample", sigc::mem_fun(*this, &MainWindow::on_action_remove_sample)
    );
    m_actionGroup->add_action(
        "RemoveUnusedSamples", sigc::mem_fun(*this, &MainWindow::on_action_remove_unused_samples)
    );
    m_actionViewSampleRefs = m_actionGroup->add_action(
        "ShowSampleRefs", sigc::mem_fun(*this, &MainWindow::on_action_view_references)
    );
    m_actionReplaceSample = m_actionGroup->add_action(
        "ReplaceSample", sigc::mem_fun(*this, &MainWindow::on_action_replace_sample)
    );
    m_actionGroup->add_action(
        "ReplaceAllSamplesInAllGroups", sigc::mem_fun(*this, &MainWindow::on_action_replace_all_samples_in_all_groups)
    );
#else
    actionGroup->add(
        Gtk::Action::create("SampleProperties", Gtk::Stock::PROPERTIES),
        sigc::mem_fun(*this, &MainWindow::on_action_sample_properties)
    );
    actionGroup->add(
        Gtk::Action::create("AddGroup", _("Add _Group")),
        sigc::mem_fun(*this, &MainWindow::on_action_add_group)
    );
    actionGroup->add(
        Gtk::Action::create("AddSample", _("Add _Sample(s)...")),
        sigc::mem_fun(*this, &MainWindow::on_action_add_sample)
    );
    actionGroup->add(
        Gtk::Action::create("RemoveSample", Gtk::Stock::REMOVE),
        sigc::mem_fun(*this, &MainWindow::on_action_remove_sample)
    );
    actionGroup->add(
        Gtk::Action::create("RemoveUnusedSamples", _("Remove _Unused Samples")),
        sigc::mem_fun(*this, &MainWindow::on_action_remove_unused_samples)
    );
    actionGroup->add(
        Gtk::Action::create("ShowSampleRefs", _("Show References...")),
        sigc::mem_fun(*this, &MainWindow::on_action_view_references)
    );
    actionGroup->add(
        Gtk::Action::create("ReplaceSample",
                            _("Replace Sample...")),
        sigc::mem_fun(*this, &MainWindow::on_action_replace_sample)
    );
    actionGroup->add(
        Gtk::Action::create("ReplaceAllSamplesInAllGroups",
                            _("Replace All Samples in All Groups...")),
        sigc::mem_fun(*this, &MainWindow::on_action_replace_all_samples_in_all_groups)
    );
#endif
    
    // script right-click popup actions
#if USE_GLIB_ACTION
    m_actionAddScriptGroup = m_actionGroup->add_action(
        "AddScriptGroup", sigc::mem_fun(*this, &MainWindow::on_action_add_script_group)
    );
    m_actionAddScript = m_actionGroup->add_action(
        "AddScript", sigc::mem_fun(*this, &MainWindow::on_action_add_script)
    );
    m_actionEditScript = m_actionGroup->add_action(
        "EditScript", sigc::mem_fun(*this, &MainWindow::on_action_edit_script)
    );
    m_actionRemoveScript = m_actionGroup->add_action(
        "RemoveScript", sigc::mem_fun(*this, &MainWindow::on_action_remove_script)
    );
#else
    actionGroup->add(
        Gtk::Action::create("AddScriptGroup", _("Add _Group")),
        sigc::mem_fun(*this, &MainWindow::on_action_add_script_group)
    );
    actionGroup->add(
        Gtk::Action::create("AddScript", _("Add _Script")),
        sigc::mem_fun(*this, &MainWindow::on_action_add_script)
    );
    actionGroup->add(
        Gtk::Action::create("EditScript", _("_Edit Script...")),
        sigc::mem_fun(*this, &MainWindow::on_action_edit_script)
    );
    actionGroup->add(
        Gtk::Action::create("RemoveScript", Gtk::Stock::REMOVE),
        sigc::mem_fun(*this, &MainWindow::on_action_remove_script)
    );
#endif

#if USE_GTKMM_BUILDER
    insert_action_group("AppMenu", m_actionGroup);
    
    m_uiManager = Gtk::Builder::create();
    Glib::ustring ui_info =
        "<interface>"
        "  <menubar id='MenuBar'>"
        "    <menu id='MenuFile'>"
        "      <attribute name='label' translatable='yes'>_File</attribute>"
        "      <section>"
        "        <item id='New'>"
        "          <attribute name='label' translatable='yes'>New</attribute>"
        "          <attribute name='action'>AppMenu.New</attribute>"
        "        </item>"
        "        <item id='Open'>"
        "          <attribute name='label' translatable='yes'>Open</attribute>"
        "          <attribute name='action'>AppMenu.Open</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='Save'>"
        "          <attribute name='label' translatable='yes'>Save</attribute>"
        "          <attribute name='action'>AppMenu.Save</attribute>"
        "        </item>"
        "        <item id='SaveAs'>"
        "          <attribute name='label' translatable='yes'>Save As</attribute>"
        "          <attribute name='action'>AppMenu.SaveAs</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='Properties'>"
        "          <attribute name='label' translatable='yes'>Properties</attribute>"
        "          <attribute name='action'>AppMenu.Properties</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='Quit'>"
        "          <attribute name='label' translatable='yes'>Quit</attribute>"
        "          <attribute name='action'>AppMenu.Quit</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuEdit'>"
        "      <attribute name='label' translatable='yes'>Edit</attribute>"
        "      <section>"
        "        <item id='CopyDimRgn'>"
        "          <attribute name='label' translatable='yes'>Copy Dimension Region</attribute>"
        "          <attribute name='action'>AppMenu.CopyDimRgn</attribute>"
        "        </item>"
        "        <item id='AdjustClipboard'>"
        "          <attribute name='label' translatable='yes'>Adjust Clipboard</attribute>"
        "          <attribute name='action'>AppMenu.AdjustClipboard</attribute>"
        "        </item>"
        "        <item id='PasteDimRgn'>"
        "          <attribute name='label' translatable='yes'>Paste Dimension Region</attribute>"
        "          <attribute name='action'>AppMenu.PasteDimRgn</attribute>"
        "        </item>"
        "      </section>"
        "        <item id='SelectPrevInstr'>"
        "          <attribute name='label' translatable='yes'>Previous Instrument</attribute>"
        "          <attribute name='action'>AppMenu.SelectPrevInstr</attribute>"
        "        </item>"
        "        <item id='SelectNextInstr'>"
        "          <attribute name='label' translatable='yes'>Next Instrument</attribute>"
        "          <attribute name='action'>AppMenu.SelectNextInstr</attribute>"
        "        </item>"
        "      <section>"
        "        <item id='SelectPrevRegion'>"
        "          <attribute name='label' translatable='yes'>Previous Region</attribute>"
        "          <attribute name='action'>AppMenu.SelectPrevRegion</attribute>"
        "        </item>"
        "        <item id='SelectNextRegion'>"
        "          <attribute name='label' translatable='yes'>Next Region</attribute>"
        "          <attribute name='action'>AppMenu.SelectNextRegion</attribute>"
        "        </item>"
        "      </section>"
        "        <item id='SelectPrevDimension'>"
        "          <attribute name='label' translatable='yes'>Previous Dimension</attribute>"
        "          <attribute name='action'>AppMenu.SelectPrevDimension</attribute>"
        "        </item>"
        "        <item id='SelectNextDimension'>"
        "          <attribute name='label' translatable='yes'>Next Dimension</attribute>"
        "          <attribute name='action'>AppMenu.SelectNextDimension</attribute>"
        "        </item>"
        "        <item id='SelectPrevDimRgnZone'>"
        "          <attribute name='label' translatable='yes'>Previous Dimension Region Zone</attribute>"
        "          <attribute name='action'>AppMenu.SelectPrevDimRgnZone</attribute>"
        "        </item>"
        "        <item id='SelectNextDimRgnZone'>"
        "          <attribute name='label' translatable='yes'>Next Dimension Region Zone</attribute>"
        "          <attribute name='action'>AppMenu.SelectNextDimRgnZone</attribute>"
        "        </item>"
        "        <item id='SelectAddPrevDimRgnZone'>"
        "          <attribute name='label' translatable='yes'>Add Previous Dimension Region Zone</attribute>"
        "          <attribute name='action'>AppMenu.SelectAddPrevDimRgnZone</attribute>"
        "        </item>"
        "        <item id='SelectAddNextDimRgnZone'>"
        "          <attribute name='label' translatable='yes'>Add Next Dimension Region Zone</attribute>"
        "          <attribute name='action'>AppMenu.SelectAddNextDimRgnZone</attribute>"
        "        </item>"
        "      <section>"
        "        <item id='CopySampleUnity'>"
        "          <attribute name='label' translatable='yes'>Copy Sample Unity</attribute>"
        "          <attribute name='action'>AppMenu.CopySampleUnity</attribute>"
        "        </item>"
        "        <item id='CopySampleTune'>"
        "          <attribute name='label' translatable='yes'>Copy Sample Tune</attribute>"
        "          <attribute name='action'>AppMenu.CopySampleTune</attribute>"
        "        </item>"
        "        <item id='CopySampleLoop'>"
        "          <attribute name='label' translatable='yes'>Copy Sample Loop</attribute>"
        "          <attribute name='action'>AppMenu.CopySampleLoop</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuMacro'>"
        "      <attribute name='label' translatable='yes'>Macro</attribute>"
        "      <section>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuSample'>"
        "      <attribute name='label' translatable='yes'>Sample</attribute>"
        "      <section>"
        "        <item id='SampleProperties'>"
        "          <attribute name='label' translatable='yes'>Properties</attribute>"
        "          <attribute name='action'>AppMenu.SampleProperties</attribute>"
        "        </item>"
        "        <item id='AddGroup'>"
        "          <attribute name='label' translatable='yes'>Add Group</attribute>"
        "          <attribute name='action'>AppMenu.AddGroup</attribute>"
        "        </item>"
        "        <item id='AddSample'>"
        "          <attribute name='label' translatable='yes'>Add Sample</attribute>"
        "          <attribute name='action'>AppMenu.AddSample</attribute>"
        "        </item>"
        "        <item id='ShowSampleRefs'>"
        "          <attribute name='label' translatable='yes'>Show Sample References</attribute>"
        "          <attribute name='action'>AppMenu.ShowSampleRefs</attribute>"
        "        </item>"
        "        <item id='ReplaceSample'>"
        "          <attribute name='label' translatable='yes'>Replace Sample</attribute>"
        "          <attribute name='action'>AppMenu.ReplaceSample</attribute>"
        "        </item>"
        "        <item id='ReplaceAllSamplesInAllGroups'>"
        "          <attribute name='label' translatable='yes'>Replace all Samples in all Groups</attribute>"
        "          <attribute name='action'>AppMenu.ReplaceAllSamplesInAllGroups</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='RemoveSample'>"
        "          <attribute name='label' translatable='yes'>Remove Sample</attribute>"
        "          <attribute name='action'>AppMenu.RemoveSample</attribute>"
        "        </item>"
        "        <item id='RemoveUnusedSamples'>"
        "          <attribute name='label' translatable='yes'>Remove unused Samples</attribute>"
        "          <attribute name='action'>AppMenu.RemoveUnusedSamples</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuInstrument'>"
        "      <attribute name='label' translatable='yes'>Instrument</attribute>"
        "      <section>"
        "        <item id='InstrProperties'>"
        "          <attribute name='label' translatable='yes'>Properties</attribute>"
        "          <attribute name='action'>AppMenu.InstrProperties</attribute>"
        "        </item>"
        "        <item id='MidiRules'>"
        "          <attribute name='label' translatable='yes'>MIDI Rules</attribute>"
        "          <attribute name='action'>AppMenu.MidiRules</attribute>"
        "        </item>"
        "        <item id='ScriptSlots'>"
        "          <attribute name='label' translatable='yes'>Script Slots</attribute>"
        "          <attribute name='action'>AppMenu.ScriptSlots</attribute>"
        "        </item>"
        "      </section>"
        "      <submenu id='AssignScripts'>"
        "        <attribute name='label' translatable='yes'>Assign Scripts</attribute>"
        "      </submenu>"
        "      <section>"
        "        <item id='AddInstrument'>"
        "          <attribute name='label' translatable='yes'>Add Instrument</attribute>"
        "          <attribute name='action'>AppMenu.AddInstrument</attribute>"
        "        </item>"
        "        <item id='DupInstrument'>"
        "          <attribute name='label' translatable='yes'>Duplicate Instrument</attribute>"
        "          <attribute name='action'>AppMenu.DupInstrument</attribute>"
        "        </item>"
        "        <item id='CombInstruments'>"
        "          <attribute name='label' translatable='yes'>Combine Instrument</attribute>"
        "          <attribute name='action'>AppMenu.CombInstruments</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='RemoveInstrument'>"
        "          <attribute name='label' translatable='yes'>Remove Instrument</attribute>"
        "          <attribute name='action'>AppMenu.RemoveInstrument</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuScript'>"
        "      <attribute name='label' translatable='yes'>Script</attribute>"
        "      <section>"
        "        <item id='AddScriptGroup'>"
        "          <attribute name='label' translatable='yes'>Add Script Group</attribute>"
        "          <attribute name='action'>AppMenu.AddScriptGroup</attribute>"
        "        </item>"
        "        <item id='AddScript'>"
        "          <attribute name='label' translatable='yes'>Add Script</attribute>"
        "          <attribute name='action'>AppMenu.AddScript</attribute>"
        "        </item>"
        "        <item id='EditScript'>"
        "          <attribute name='label' translatable='yes'>Edit Script</attribute>"
        "          <attribute name='action'>AppMenu.EditScript</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='RemoveScript'>"
        "          <attribute name='label' translatable='yes'>Remove Script</attribute>"
        "          <attribute name='action'>AppMenu.RemoveScript</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuView'>"
        "      <attribute name='label' translatable='yes'>View</attribute>"
        "      <section>"
        "        <item id='Statusbar'>"
        "          <attribute name='label' translatable='yes'>Statusbar</attribute>"
        "          <attribute name='action'>AppMenu.Statusbar</attribute>"
        "        </item>"
        "        <item id='ShowTooltips'>"
        "          <attribute name='label' translatable='yes'>Tooltips for Beginners</attribute>"
        "          <attribute name='action'>AppMenu.ShowTooltips</attribute>"
        "        </item>"
        "        <item id='AutoRestoreWinDim'>"
        "          <attribute name='label' translatable='yes'>Auto restore Window Dimensions</attribute>"
        "          <attribute name='action'>AppMenu.AutoRestoreWinDim</attribute>"
        "        </item>"
        "      </section>"
        "      <section>"
        "        <item id='RefreshAll'>"
        "          <attribute name='label' translatable='yes'>Refresh All</attribute>"
        "          <attribute name='action'>AppMenu.RefreshAll</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuTools'>"
        "      <attribute name='label' translatable='yes'>Tools</attribute>"
        "      <section>"
        "        <item id='CombineInstruments'>"
        "          <attribute name='label' translatable='yes'>Combine Instruments ...</attribute>"
        "          <attribute name='action'>AppMenu.CombineInstruments</attribute>"
        "        </item>"
        "        <item id='MergeFiles'>"
        "          <attribute name='label' translatable='yes'>Merge Files ...</attribute>"
        "          <attribute name='action'>AppMenu.MergeFiles</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuSettings'>"
        "      <attribute name='label' translatable='yes'>Settings</attribute>"
        "      <section>"
        "        <item id='WarnUserOnExtensions'>"
        "          <attribute name='label' translatable='yes'>Warning on Format Extensions</attribute>"
        "          <attribute name='action'>AppMenu.WarnUserOnExtensions</attribute>"
        "        </item>"
        "        <item id='SyncSamplerInstrumentSelection'>"
        "          <attribute name='label' translatable='yes'>Synchronize Sampler Selection</attribute>"
        "          <attribute name='action'>AppMenu.SyncSamplerInstrumentSelection</attribute>"
        "        </item>"
        "        <item id='MoveRootNoteWithRegionMoved'>"
        "          <attribute name='label' translatable='yes'>Move Root Note with Region moved</attribute>"
        "          <attribute name='action'>AppMenu.MoveRootNoteWithRegionMoved</attribute>"
        "        </item>"
        "        <item id='SaveWithTemporaryFile'>"
        "          <attribute name='label' translatable='yes'>Save with temporary file</attribute>"
        "          <attribute name='action'>AppMenu.SaveWithTemporaryFile</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "    <menu id='MenuHelp'>"
        "      <attribute name='label' translatable='yes'>Help</attribute>"
        "      <section>"
        "        <item id='About'>"
        "          <attribute name='label' translatable='yes'>About ...</attribute>"
        "          <attribute name='action'>AppMenu.About</attribute>"
        "        </item>"
        "      </section>"
        "    </menu>"
        "  </menubar>"
        // popups
        "  <menu id='PopupMenu'>"
        "    <section>"
        "      <item id='InstrProperties'>"
        "        <attribute name='label' translatable='yes'>Instrument Properties</attribute>"
        "        <attribute name='action'>AppMenu.InstrProperties</attribute>"
        "      </item>"
        "      <item id='MidiRules'>"
        "        <attribute name='label' translatable='yes'>MIDI Rules</attribute>"
        "        <attribute name='action'>AppMenu.MidiRules</attribute>"
        "      </item>"
        "      <item id='ScriptSlots'>"
        "        <attribute name='label' translatable='yes'>Script Slots</attribute>"
        "        <attribute name='action'>AppMenu.ScriptSlots</attribute>"
        "      </item>"
        "      <item id='AddInstrument'>"
        "        <attribute name='label' translatable='yes'>Add Instrument</attribute>"
        "        <attribute name='action'>AppMenu.AddInstrument</attribute>"
        "      </item>"
        "      <item id='DupInstrument'>"
        "        <attribute name='label' translatable='yes'>Duplicate Instrument</attribute>"
        "        <attribute name='action'>AppMenu.DupInstrument</attribute>"
        "      </item>"
        "      <item id='CombInstruments'>"
        "        <attribute name='label' translatable='yes'>Combine Instruments</attribute>"
        "        <attribute name='action'>AppMenu.CombInstruments</attribute>"
        "      </item>"
        "    </section>"
        "    <section>"
        "      <item id='RemoveInstrument'>"
        "        <attribute name='label' translatable='yes'>Remove Instruments</attribute>"
        "        <attribute name='action'>AppMenu.RemoveInstrument</attribute>"
        "      </item>"
        "    </section>"
        "  </menu>"
        "  <menu id='SamplePopupMenu'>"
        "    <section>"
        "      <item id='SampleProperties'>"
        "        <attribute name='label' translatable='yes'>Sample Properties</attribute>"
        "        <attribute name='action'>AppMenu.SampleProperties</attribute>"
        "      </item>"
        "      <item id='AddGroup'>"
        "        <attribute name='label' translatable='yes'>Add Sample Group</attribute>"
        "        <attribute name='action'>AppMenu.AddGroup</attribute>"
        "      </item>"
        "      <item id='AddSample'>"
        "        <attribute name='label' translatable='yes'>Add Sample</attribute>"
        "        <attribute name='action'>AppMenu.AddSample</attribute>"
        "      </item>"
        "      <item id='ShowSampleRefs'>"
        "        <attribute name='label' translatable='yes'>Show Sample References ...</attribute>"
        "        <attribute name='action'>AppMenu.ShowSampleRefs</attribute>"
        "      </item>"
        "      <item id='ReplaceSample'>"
        "        <attribute name='label' translatable='yes'>Replace Sample</attribute>"
        "        <attribute name='action'>AppMenu.ReplaceSample</attribute>"
        "      </item>"
        "      <item id='ReplaceAllSamplesInAllGroups'>"
        "        <attribute name='label' translatable='yes'>Replace all Samples ...</attribute>"
        "        <attribute name='action'>AppMenu.ReplaceAllSamplesInAllGroups</attribute>"
        "      </item>"
        "    </section>"
        "    <section>"
        "      <item id='RemoveSample'>"
        "        <attribute name='label' translatable='yes'>Remove Sample</attribute>"
        "        <attribute name='action'>AppMenu.RemoveSample</attribute>"
        "      </item>"
        "      <item id='RemoveUnusedSamples'>"
        "        <attribute name='label' translatable='yes'>Remove unused Samples</attribute>"
        "        <attribute name='action'>AppMenu.RemoveUnusedSamples</attribute>"
        "      </item>"
        "    </section>"
        "  </menu>"
        "  <menu id='ScriptPopupMenu'>"
        "    <section>"
        "      <item id='AddScriptGroup'>"
        "        <attribute name='label' translatable='yes'>Add Script Group</attribute>"
        "        <attribute name='action'>AppMenu.AddScriptGroup</attribute>"
        "      </item>"
        "      <item id='AddScript'>"
        "        <attribute name='label' translatable='yes'>Add Script</attribute>"
        "        <attribute name='action'>AppMenu.AddScript</attribute>"
        "      </item>"
        "      <item id='EditScript'>"
        "        <attribute name='label' translatable='yes'>Edit Script</attribute>"
        "        <attribute name='action'>AppMenu.EditScript</attribute>"
        "      </item>"
        "    </section>"
        "    <section>"
        "      <item id='RemoveScript'>"
        "        <attribute name='label' translatable='yes'>Remove Script</attribute>"
        "        <attribute name='action'>AppMenu.RemoveScript</attribute>"
        "      </item>"
        "    </section>"
        "  </menu>"
        "</interface>";
    m_uiManager->add_from_string(ui_info);
#else
    uiManager = Gtk::UIManager::create();
    uiManager->insert_action_group(actionGroup);
    add_accel_group(uiManager->get_accel_group());

    Glib::ustring ui_info =
        "<ui>"
        "  <menubar name='MenuBar'>"
        "    <menu action='MenuFile'>"
        "      <menuitem action='New'/>"
        "      <menuitem action='Open'/>"
        "      <separator/>"
        "      <menuitem action='Save'/>"
        "      <menuitem action='SaveAs'/>"
        "      <separator/>"
        "      <menuitem action='Properties'/>"
        "      <separator/>"
        "      <menuitem action='Quit'/>"
        "    </menu>"
        "    <menu action='MenuEdit'>"
        "      <menuitem action='CopyDimRgn'/>"
        "      <menuitem action='AdjustClipboard'/>"
        "      <menuitem action='PasteDimRgn'/>"
        "      <separator/>"
        "      <menuitem action='SelectPrevInstr'/>"
        "      <menuitem action='SelectNextInstr'/>"
        "      <separator/>"
        "      <menuitem action='SelectPrevRegion'/>"
        "      <menuitem action='SelectNextRegion'/>"
        "      <separator/>"
        "      <menuitem action='SelectPrevDimension'/>"
        "      <menuitem action='SelectNextDimension'/>"
        "      <menuitem action='SelectPrevDimRgnZone'/>"
        "      <menuitem action='SelectNextDimRgnZone'/>"
        "      <menuitem action='SelectAddPrevDimRgnZone'/>"
        "      <menuitem action='SelectAddNextDimRgnZone'/>"
        "      <separator/>"
        "      <menuitem action='CopySampleUnity'/>"
        "      <menuitem action='CopySampleTune'/>"
        "      <menuitem action='CopySampleLoop'/>"
        "    </menu>"
        "    <menu action='MenuMacro'>"
        "    </menu>"
        "    <menu action='MenuSample'>"
        "      <menuitem action='SampleProperties'/>"
        "      <menuitem action='AddGroup'/>"
        "      <menuitem action='AddSample'/>"
        "      <menuitem action='ShowSampleRefs'/>"
        "      <menuitem action='ReplaceSample' />"
        "      <menuitem action='ReplaceAllSamplesInAllGroups' />"
        "      <separator/>"
        "      <menuitem action='RemoveSample'/>"
        "      <menuitem action='RemoveUnusedSamples'/>"
        "    </menu>"
        "    <menu action='MenuInstrument'>"
        "      <menu action='AllInstruments'>"
        "      </menu>"
        "      <separator/>"
        "      <menuitem action='InstrProperties'/>"
        "      <menuitem action='MidiRules'/>"
        "      <menuitem action='ScriptSlots'/>"
        "      <menu action='AssignScripts'/>"
        "      <menuitem action='AddInstrument'/>"
        "      <menuitem action='DupInstrument'/>"
        "      <menuitem action='CombInstruments'/>"
        "      <separator/>"
        "      <menuitem action='RemoveInstrument'/>"
        "    </menu>"
        "    <menu action='MenuScript'>"
        "      <menuitem action='AddScriptGroup'/>"
        "      <menuitem action='AddScript'/>"
        "      <menuitem action='EditScript'/>"
        "      <separator/>"
        "      <menuitem action='RemoveScript'/>"
        "    </menu>"
        "    <menu action='MenuView'>"
        "      <menuitem action='Statusbar'/>"
        "      <menuitem action='ShowTooltips'/>"
        "      <menuitem action='AutoRestoreWinDim'/>"
        "      <separator/>"
        "      <menuitem action='RefreshAll'/>"
        "    </menu>"
        "    <menu action='MenuTools'>"
        "      <menuitem action='CombineInstruments'/>"
        "      <menuitem action='MergeFiles'/>"
        "    </menu>"
        "    <menu action='MenuSettings'>"
        "      <menuitem action='WarnUserOnExtensions'/>"
        "      <menuitem action='SyncSamplerInstrumentSelection'/>"
        "      <menuitem action='MoveRootNoteWithRegionMoved'/>"
        "      <menuitem action='SaveWithTemporaryFile'/>"
        "    </menu>"
        "    <menu action='MenuHelp'>"
        "      <menuitem action='About'/>"
        "    </menu>"
        "  </menubar>"
        "  <popup name='PopupMenu'>"
        "    <menuitem action='InstrProperties'/>"
        "    <menuitem action='MidiRules'/>"
        "    <menuitem action='ScriptSlots'/>"
        "    <menuitem action='AddInstrument'/>"
        "    <menuitem action='DupInstrument'/>"
        "    <menuitem action='CombInstruments'/>"
        "    <separator/>"
        "    <menuitem action='RemoveInstrument'/>"
        "  </popup>"
        "  <popup name='SamplePopupMenu'>"
        "    <menuitem action='SampleProperties'/>"
        "    <menuitem action='AddGroup'/>"
        "    <menuitem action='AddSample'/>"
        "    <menuitem action='ShowSampleRefs'/>"
        "    <menuitem action='ReplaceSample' />"
        "    <menuitem action='ReplaceAllSamplesInAllGroups' />"
        "    <separator/>"
        "    <menuitem action='RemoveSample'/>"
        "    <menuitem action='RemoveUnusedSamples'/>"
        "  </popup>"
        "  <popup name='ScriptPopupMenu'>"
        "    <menuitem action='AddScriptGroup'/>"
        "    <menuitem action='AddScript'/>"
        "    <menuitem action='EditScript'/>"
        "    <separator/>"
        "    <menuitem action='RemoveScript'/>"
        "  </popup>"
        "</ui>";
    uiManager->add_ui_from_string(ui_info);
#endif

#if USE_GTKMM_BUILDER
    popup_menu = new Gtk::Menu(
        Glib::RefPtr<Gio::Menu>::cast_dynamic(
            m_uiManager->get_object("PopupMenu")
        )
    );
    sample_popup = new Gtk::Menu(
        Glib::RefPtr<Gio::Menu>::cast_dynamic(
            m_uiManager->get_object("SamplePopupMenu")
        )
    );
    script_popup = new Gtk::Menu(
        Glib::RefPtr<Gio::Menu>::cast_dynamic(
            m_uiManager->get_object("ScriptPopupMenu")
        )
    );
#else
    popup_menu = dynamic_cast<Gtk::Menu*>(uiManager->get_widget("/PopupMenu"));
    
    // Set tooltips for menu items (for some reason, setting a tooltip on the
    // respective Gtk::Action objects above will simply be ignored, no matter
    // if using Gtk::Action::set_tooltip() or passing the tooltip string on
    // Gtk::Action::create()).
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuEdit/CopySampleUnity"));
        item->set_tooltip_text(_("Used when dragging a sample to a region's sample reference field. You may disable this for example if you want to replace an existing sample in a region with a new sample, but don't want that the region's current unity note setting will be altered by this action."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuEdit/CopySampleTune"));
        item->set_tooltip_text(_("Used when dragging a sample to a region's sample reference field. You may disable this for example if you want to replace an existing sample in a region with a new sample, but don't want that the region's current sample playback tuning will be altered by this action."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuEdit/CopySampleLoop"));
        item->set_tooltip_text(_("Used when dragging a sample to a region's sample reference field. You may disable this for example if you want to replace an existing sample in a region with a new sample, but don't want that the region's current loop information to be altered by this action."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuSettings/WarnUserOnExtensions"));
        item->set_tooltip_text(_("If checked, a warning will be shown whenever you try to use a feature which is based on a LinuxSampler extension ontop of the original gig format, which would not work with the Gigasampler/GigaStudio application."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuSettings/SyncSamplerInstrumentSelection"));
        item->set_tooltip_text(_("If checked, the sampler's current instrument will automatically be switched whenever another instrument was selected in gigedit (only available in live-mode)."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuSettings/MoveRootNoteWithRegionMoved"));
        item->set_tooltip_text(_("If checked, and when a region is moved by dragging it around on the virtual keyboard, the keyboard position dependent pitch will move exactly with the amount of semi tones the region was moved around."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuSample/RemoveUnusedSamples"));
        item->set_tooltip_text(_("Removes all samples that are not referenced by any instrument (i.e. red ones)."));
        // copy tooltip to popup menu
        Gtk::MenuItem* item2 = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/SamplePopupMenu/RemoveUnusedSamples"));
        item2->set_tooltip_text(item->get_tooltip_text());
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuView/RefreshAll"));
        item->set_tooltip_text(_("Reloads the currently open gig file and updates the entire graphical user interface."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuView/AutoRestoreWinDim"));
        item->set_tooltip_text(_("If checked, size and position of all windows will be saved and automatically restored next time."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuTools/CombineInstruments"));
        item->set_tooltip_text(_("Create combi sounds out of individual sounds of this .gig file."));
    }
    {
        Gtk::MenuItem* item = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuTools/MergeFiles"));
        item->set_tooltip_text(_("Add instruments and samples of other .gig files to this .gig file."));
    }
#endif

#if USE_GTKMM_BUILDER
    assign_scripts_menu = new Gtk::Menu(
        Glib::RefPtr<Gio::Menu>::cast_dynamic(
            m_uiManager->get_object("AssignScripts")
        )
    );
#else
    instrument_menu = static_cast<Gtk::MenuItem*>(
        uiManager->get_widget("/MenuBar/MenuInstrument/AllInstruments"))->get_submenu();

    assign_scripts_menu = static_cast<Gtk::MenuItem*>(
        uiManager->get_widget("/MenuBar/MenuInstrument/AssignScripts"))->get_submenu();
#endif

#if USE_GTKMM_BUILDER
    Gtk::Widget* menuBar = NULL;
    m_uiManager->get_widget("MenuBar", menuBar);
#else
    Gtk::Widget* menuBar = uiManager->get_widget("/MenuBar");
#endif

    m_VBox.pack_start(*menuBar, Gtk::PACK_SHRINK);
    m_VBox.pack_start(m_HPaned);
    m_VBox.pack_start(m_RegionChooser, Gtk::PACK_SHRINK);
    m_VBox.pack_start(m_RegionChooser.m_VirtKeybPropsBox, Gtk::PACK_SHRINK);
    m_VBox.pack_start(m_DimRegionChooser, Gtk::PACK_SHRINK);
    m_VBox.pack_start(m_StatusBar, Gtk::PACK_SHRINK);

    set_file_is_shared(false);

    // Status Bar:
#if USE_GTKMM_BOX
# warning No status bar layout for GTKMM 4 yet
#else
    m_StatusBar.pack_start(m_AttachedStateLabel, Gtk::PACK_SHRINK);
    m_StatusBar.pack_start(m_AttachedStateImage, Gtk::PACK_SHRINK);
#endif
    m_StatusBar.show();

    m_RegionChooser.signal_region_selected().connect(
        sigc::mem_fun(*this, &MainWindow::region_changed) );
    m_DimRegionChooser.signal_dimregion_selected().connect(
        sigc::mem_fun(*this, &MainWindow::dimreg_changed) );


    // Create the Tree model:
    m_refTreeModel = Gtk::ListStore::create(m_Columns);
    m_refTreeModelFilter = Gtk::TreeModelFilter::create(m_refTreeModel);
    m_refTreeModelFilter->set_visible_func(
        sigc::mem_fun(*this, &MainWindow::instrument_row_visible)
    );
    m_TreeView.set_model(m_refTreeModelFilter);

    m_TreeView.get_selection()->set_mode(Gtk::SELECTION_MULTIPLE);
    m_TreeView.set_has_tooltip(true);
    m_TreeView.signal_query_tooltip().connect(
        sigc::mem_fun(*this, &MainWindow::onQueryTreeViewTooltip)
    );
    instrument_name_connection = m_refTreeModel->signal_row_changed().connect(
        sigc::mem_fun(*this, &MainWindow::instrument_name_changed)
    );

    // Add the TreeView's view columns:
    m_TreeView.append_column(_("Nr"), m_Columns.m_col_nr);
    m_TreeView.append_column_editable(_("Instrument"), m_Columns.m_col_name);
    m_TreeView.append_column(_("Scripts"), m_Columns.m_col_scripts);
    m_TreeView.set_headers_visible(true);
    
    // establish drag&drop within the instrument tree view, allowing to reorder
    // the sequence of instruments within the gig file
    {
        std::vector<Gtk::TargetEntry> drag_target_instrument;
        drag_target_instrument.push_back(Gtk::TargetEntry("gig::Instrument"));
        m_TreeView.drag_source_set(drag_target_instrument);
        m_TreeView.drag_dest_set(drag_target_instrument);
        m_TreeView.signal_drag_begin().connect(
            sigc::mem_fun(*this, &MainWindow::on_instruments_treeview_drag_begin)
        );
        m_TreeView.signal_drag_data_get().connect(
            sigc::mem_fun(*this, &MainWindow::on_instruments_treeview_drag_data_get)
        );
        m_TreeView.signal_drag_data_received().connect(
            sigc::mem_fun(*this, &MainWindow::on_instruments_treeview_drop_drag_data_received)
        );
    }

    // create samples treeview (including its data model)
    m_refSamplesTreeModel = SamplesTreeStore::create(m_SamplesModel);
    m_TreeViewSamples.set_model(m_refSamplesTreeModel);
    m_TreeViewSamples.get_selection()->set_mode(Gtk::SELECTION_MULTIPLE);
    m_TreeViewSamples.set_tooltip_text(_("To actually use a sample, drag it from this list view to \"Sample\" -> \"Sample:\" on the region's settings pane on the right.\n\nRight click here for more actions on samples."));
    // m_TreeViewSamples.set_reorderable();
    m_TreeViewSamples.append_column_editable(_("Name"), m_SamplesModel.m_col_name);
    m_TreeViewSamples.append_column(_("Referenced"), m_SamplesModel.m_col_refcount);
    {
        Gtk::TreeViewColumn* column = m_TreeViewSamples.get_column(0);
        Gtk::CellRendererText* cellrenderer =
            dynamic_cast<Gtk::CellRendererText*>(column->get_first_cell());
        column->add_attribute(
            cellrenderer->property_foreground(), m_SamplesModel.m_color
        );
    }
    {
        Gtk::TreeViewColumn* column = m_TreeViewSamples.get_column(1);
        Gtk::CellRendererText* cellrenderer =
            dynamic_cast<Gtk::CellRendererText*>(column->get_first_cell());
        column->add_attribute(
            cellrenderer->property_foreground(), m_SamplesModel.m_color
        );
    }
    m_TreeViewSamples.set_headers_visible(true);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && (GTKMM_MINOR_VERSION > 91 || (GTKMM_MINOR_VERSION == 91 && GTKMM_MICRO_VERSION >= 2))) // GTKMM >= 3.91.2
    m_TreeViewSamples.signal_button_press_event().connect(
        sigc::mem_fun(*this, &MainWindow::on_sample_treeview_button_release)
    );
#else
    m_TreeViewSamples.signal_button_press_event().connect_notify(
        sigc::mem_fun(*this, &MainWindow::on_sample_treeview_button_release)
    );
#endif
    m_refSamplesTreeModel->signal_row_changed().connect(
        sigc::mem_fun(*this, &MainWindow::sample_name_changed)
    );

    // create scripts treeview (including its data model)
    m_refScriptsTreeModel = ScriptsTreeStore::create(m_ScriptsModel);
    m_TreeViewScripts.set_model(m_refScriptsTreeModel);
    m_TreeViewScripts.set_tooltip_text(_(
        "Use CTRL + double click for editing a script."
        "\n\n"
        "Note: instrument scripts are a LinuxSampler extension of the gig "
        "format. This feature will not work with the GigaStudio software!"
    ));
    // m_TreeViewScripts.set_reorderable();
    m_TreeViewScripts.append_column_editable("Samples", m_ScriptsModel.m_col_name);
    m_TreeViewScripts.set_headers_visible(false);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && (GTKMM_MINOR_VERSION > 91 || (GTKMM_MINOR_VERSION == 91 && GTKMM_MICRO_VERSION >= 2))) // GTKMM >= 3.91.2
    m_TreeViewScripts.signal_button_press_event().connect(
        sigc::mem_fun(*this, &MainWindow::on_script_treeview_button_release)
    );
#else
    m_TreeViewScripts.signal_button_press_event().connect_notify(
        sigc::mem_fun(*this, &MainWindow::on_script_treeview_button_release)
    );
#endif
    //FIXME: why the heck does this double click signal_row_activated() only fire while CTRL key is pressed ?
    m_TreeViewScripts.signal_row_activated().connect(
        sigc::mem_fun(*this, &MainWindow::script_double_clicked)
    );
    m_refScriptsTreeModel->signal_row_changed().connect(
        sigc::mem_fun(*this, &MainWindow::script_name_changed)
    );

    // establish drag&drop between scripts tree view and ScriptSlots window
    std::vector<Gtk::TargetEntry> drag_target_gig_script;
    drag_target_gig_script.push_back(Gtk::TargetEntry("gig::Script"));
    m_TreeViewScripts.drag_source_set(drag_target_gig_script);
    m_TreeViewScripts.signal_drag_begin().connect(
        sigc::mem_fun(*this, &MainWindow::on_scripts_treeview_drag_begin)
    );
    m_TreeViewScripts.signal_drag_data_get().connect(
        sigc::mem_fun(*this, &MainWindow::on_scripts_treeview_drag_data_get)
    );

    // establish drag&drop between samples tree view and dimension region 'Sample' text entry
    std::vector<Gtk::TargetEntry> drag_target_gig_sample;
    drag_target_gig_sample.push_back(Gtk::TargetEntry("gig::Sample"));
    m_TreeViewSamples.drag_source_set(drag_target_gig_sample);
    m_TreeViewSamples.signal_drag_begin().connect(
        sigc::mem_fun(*this, &MainWindow::on_sample_treeview_drag_begin)
    );
    m_TreeViewSamples.signal_drag_data_get().connect(
        sigc::mem_fun(*this, &MainWindow::on_sample_treeview_drag_data_get)
    );
    dimreg_edit.wSample->drag_dest_set(drag_target_gig_sample);
    dimreg_edit.wSample->signal_drag_data_received().connect(
        sigc::mem_fun(*this, &MainWindow::on_sample_label_drop_drag_data_received)
    );
    dimreg_edit.signal_dimreg_changed().connect(
        sigc::hide(sigc::mem_fun(*this, &MainWindow::file_changed)));
    m_RegionChooser.signal_instrument_changed().connect(
        sigc::mem_fun(*this, &MainWindow::file_changed));
    m_RegionChooser.signal_instrument_changed().connect(
        sigc::mem_fun(*this, &MainWindow::region_changed));
    m_DimRegionChooser.signal_region_changed().connect(
        sigc::mem_fun(*this, &MainWindow::file_changed));
    instrumentProps.signal_changed().connect(
        sigc::mem_fun(*this, &MainWindow::file_changed));
    propDialog.signal_changed().connect(
        sigc::mem_fun(*this, &MainWindow::file_changed));
    midiRules.signal_changed().connect(
        sigc::mem_fun(*this, &MainWindow::file_changed));

    dimreg_edit.signal_dimreg_to_be_changed().connect(
        dimreg_to_be_changed_signal.make_slot());
    dimreg_edit.signal_dimreg_changed().connect(
        dimreg_changed_signal.make_slot());
    dimreg_edit.signal_sample_ref_changed().connect(
        sample_ref_changed_signal.make_slot());
    sample_ref_changed_signal.connect(
        sigc::mem_fun(*this, &MainWindow::on_sample_ref_changed)
    );
    samples_to_be_removed_signal.connect(
        sigc::mem_fun(*this, &MainWindow::on_samples_to_be_removed)
    );

    dimreg_edit.signal_select_sample().connect(
        sigc::mem_fun(*this, &MainWindow::select_sample)
    );

    m_RegionChooser.signal_instrument_struct_to_be_changed().connect(
        sigc::hide(
            sigc::bind(
                file_structure_to_be_changed_signal.make_slot(),
#if SIGCXX_MAJOR_VERSION > 2 || (SIGCXX_MAJOR_VERSION == 2 && SIGCXX_MINOR_VERSION >= 8)
                std::ref(this->file)
#else
                sigc::ref(this->file)
#endif
            )
        )
    );
    m_RegionChooser.signal_instrument_struct_changed().connect(
        sigc::hide(
            sigc::bind(
                file_structure_changed_signal.make_slot(),
#if SIGCXX_MAJOR_VERSION > 2 || (SIGCXX_MAJOR_VERSION == 2 && SIGCXX_MINOR_VERSION >= 8)
                std::ref(this->file)
#else
                sigc::ref(this->file)
#endif
            )
        )
    );
    m_RegionChooser.signal_region_to_be_changed().connect(
        region_to_be_changed_signal.make_slot());
    m_RegionChooser.signal_region_changed_signal().connect(
        region_changed_signal.make_slot());

    note_on_signal.connect(
        sigc::mem_fun(m_RegionChooser, &RegionChooser::on_note_on_event));
    note_off_signal.connect(
        sigc::mem_fun(m_RegionChooser, &RegionChooser::on_note_off_event));

    dimreg_all_regions.signal_toggled().connect(
        sigc::mem_fun(*this, &MainWindow::update_dimregs));
    dimreg_all_dimregs.signal_toggled().connect(
        sigc::mem_fun(*this, &MainWindow::dimreg_all_dimregs_toggled));
    dimreg_stereo.signal_toggled().connect(
        sigc::mem_fun(*this, &MainWindow::update_dimregs));

    m_searchText.signal_changed().connect(
        sigc::mem_fun(*m_refTreeModelFilter.operator->(), &Gtk::TreeModelFilter::refilter)
    );

    file = 0;
    file_is_changed = false;

#if HAS_GTKMM_SHOW_ALL_CHILDREN
    show_all_children();
#endif

    // start with a new gig file by default
    on_action_file_new();

    m_TreeViewNotebook.signal_switch_page().connect(
        sigc::mem_fun(*this, &MainWindow::on_notebook_tab_switched)
    );

    // select 'Instruments' tab by default
    // (gtk allows this only if the tab childs are visible, thats why it's here)
    m_TreeViewNotebook.set_current_page(1);

    Gtk::Clipboard::get()->signal_owner_change().connect(
        sigc::mem_fun(*this, &MainWindow::on_clipboard_owner_change)
    );
    updateClipboardPasteAvailable();
    updateClipboardCopyAvailable();

    // setup macros and their keyboard accelerators
    {
#if USE_GTKMM_BUILDER
        menuMacro = new Gtk::Menu(
            Glib::RefPtr<Gio::Menu>::cast_dynamic(
                m_uiManager->get_object("MenuMacro")
            )
        );
#else
        Gtk::Menu* menuMacro = dynamic_cast<Gtk::MenuItem*>(
            uiManager->get_widget("/MenuBar/MenuMacro")
        )->get_submenu();
#endif

        const Gdk::ModifierType noModifier = (Gdk::ModifierType)0;
        Gtk::AccelMap::add_entry("<Macros>/macro_0", GDK_KEY_F1, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_1", GDK_KEY_F2, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_2", GDK_KEY_F3, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_3", GDK_KEY_F4, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_4", GDK_KEY_F5, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_5", GDK_KEY_F6, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_6", GDK_KEY_F7, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_7", GDK_KEY_F8, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_8", GDK_KEY_F9, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_9", GDK_KEY_F10, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_10", GDK_KEY_F11, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_11", GDK_KEY_F12, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_12", GDK_KEY_F13, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_13", GDK_KEY_F14, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_14", GDK_KEY_F15, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_15", GDK_KEY_F16, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_16", GDK_KEY_F17, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_17", GDK_KEY_F18, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/macro_18", GDK_KEY_F19, noModifier);
        Gtk::AccelMap::add_entry("<Macros>/SetupMacros", 'm', primaryModifierKey);

        Glib::RefPtr<Gtk::AccelGroup> accelGroup = this->get_accel_group();
        menuMacro->set_accel_group(accelGroup);

        updateMacroMenu();
    }

    // setup "Assign Scripts" keyboard accelerators
    {
        Gtk::AccelMap::add_entry("<Scripts>/script_0", GDK_KEY_F1, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_1", GDK_KEY_F2, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_2", GDK_KEY_F3, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_3", GDK_KEY_F4, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_4", GDK_KEY_F5, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_5", GDK_KEY_F6, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_6", GDK_KEY_F7, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_7", GDK_KEY_F8, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_8", GDK_KEY_F9, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_9", GDK_KEY_F10, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_10", GDK_KEY_F11, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_11", GDK_KEY_F12, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_12", GDK_KEY_F13, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_13", GDK_KEY_F14, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_14", GDK_KEY_F15, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_15", GDK_KEY_F16, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_16", GDK_KEY_F17, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_17", GDK_KEY_F18, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/script_18", GDK_KEY_F19, Gdk::SHIFT_MASK);
        Gtk::AccelMap::add_entry("<Scripts>/DropAllScriptSlots", GDK_KEY_BackSpace, Gdk::SHIFT_MASK);

        Glib::RefPtr<Gtk::AccelGroup> accelGroup = this->get_accel_group();
        assign_scripts_menu->set_accel_group(accelGroup);
    }

    on_show_tooltips_changed();

    Glib::signal_idle().connect_once(
        sigc::mem_fun(*this, &MainWindow::bringToFront),
        200
    );
}

MainWindow::~MainWindow()
{
}

void MainWindow::bringToFront() {
    #if defined(__APPLE__)
    macRaiseAppWindow();
    #endif
    raise();
    present();
}

void MainWindow::updateMacroMenu() {
#if !USE_GTKMM_BUILDER
    Gtk::Menu* menuMacro = dynamic_cast<Gtk::MenuItem*>(
        uiManager->get_widget("/MenuBar/MenuMacro")
    )->get_submenu();
#endif

    // remove all entries from "Macro" menu
    {
        const std::vector<Gtk::Widget*> children = menuMacro->get_children();
        for (int i = 0; i < children.size(); ++i) {
            Gtk::Widget* child = children[i];
            menuMacro->remove(*child);
            delete child;
        }
    }

    // (re)load all macros from config file
    try {
        Settings::singleton()->loadMacros(m_macros);
    } catch (Serialization::Exception e) {
        std::cerr << "Exception while loading macros: " << e.Message << std::endl;
    } catch (...) {
        std::cerr << "Unknown exception while loading macros!" << std::endl;
    }

    // add all configured macros as menu items to the "Macro" menu
    for (int iMacro = 0; iMacro < m_macros.size(); ++iMacro) {
        const Serialization::Archive& macro = m_macros[iMacro];
        std::string name =
            macro.name().empty() ?
                (std::string(_("Unnamed Macro")) + " " + ToString(iMacro+1)) : macro.name();
        Gtk::MenuItem* item = new Gtk::MenuItem(name);
        item->signal_activate().connect(
            sigc::bind(
                sigc::mem_fun(*this, &MainWindow::onMacroSelected), iMacro
            )
        );
        menuMacro->append(*item);
        item->set_accel_path("<Macros>/macro_" + ToString(iMacro));
        Glib::ustring comment = macro.comment();
        if (!comment.empty())
            item->set_tooltip_text(comment);
    }
    // if there are no macros configured at all, then show a dummy entry instead
    if (m_macros.empty()) {
        Gtk::MenuItem* item = new Gtk::MenuItem(_("No Macros"));
        item->set_sensitive(false);
        menuMacro->append(*item);
    }

    // add separator line to menu
    menuMacro->append(*new Gtk::SeparatorMenuItem);

    {
        Gtk::MenuItem* item = new Gtk::MenuItem(_("Setup Macros ..."));
        item->signal_activate().connect(
            sigc::mem_fun(*this, &MainWindow::setupMacros)
        );
        menuMacro->append(*item);
        item->set_accel_path("<Macros>/SetupMacros");
    }

#if HAS_GTKMM_SHOW_ALL_CHILDREN
    menuMacro->show_all_children();
#endif
}

void MainWindow::onMacroSelected(int iMacro) {
    printf("onMacroSelected(%d)\n", iMacro);
    if (iMacro < 0 || iMacro >= m_macros.size()) return;
    Glib::ustring errorText;
    try {
        applyMacro(m_macros[iMacro]);
    } catch (Serialization::Exception e) {
        errorText = e.Message;
    } catch (...) {
        errorText = _("Unknown exception while applying macro");
    }
    if (!errorText.empty()) {
        Glib::ustring txt = _("Applying macro failed:\n") + errorText;
        Gtk::MessageDialog msg(*this, txt, false, Gtk::MESSAGE_ERROR);
        msg.run();
    }
}

void MainWindow::setupMacros() {
    MacrosSetup* setup = new MacrosSetup();
    gig::DimensionRegion* pDimRgn = m_DimRegionChooser.get_main_dimregion();
    setup->setMacros(m_macros, &m_serializationArchive, pDimRgn);
    setup->signal_macros_changed().connect(
        sigc::mem_fun(*this, &MainWindow::onMacrosSetupChanged)
    );
    setup->show();
}

void MainWindow::onMacrosSetupChanged(const std::vector<Serialization::Archive>& macros) {
    m_macros = macros;
    Settings::singleton()->saveMacros(m_macros);
    updateMacroMenu();
}

//NOTE: the actual signal's first argument for argument 'page' is on some gtkmm version GtkNotebookPage* and on some Gtk::Widget*. Since we don't need that argument, it is simply void* here for now.
void MainWindow::on_notebook_tab_switched(void* page, guint page_num) {
    bool isInstrumentsPage = (page_num == 1);
    // so far we only support filtering for the instruments list, so hide the
    // filter text entry field if another tab is selected
    m_searchField.set_visible(isInstrumentsPage);
}

bool MainWindow::on_delete_event(GdkEventAny* event)
{
    return !file_is_shared && file_is_changed && !close_confirmation_dialog();
}

void MainWindow::on_action_quit()
{
    if (!file_is_shared && file_is_changed && !close_confirmation_dialog()) return;
    hide();
}

void MainWindow::region_changed()
{
    m_DimRegionChooser.set_region(m_RegionChooser.get_region());
}

gig::Instrument* MainWindow::get_instrument()
{
    gig::Instrument* instrument = 0;
    std::vector<Gtk::TreeModel::Path> rows = m_TreeView.get_selection()->get_selected_rows();
    if (rows.empty()) return NULL;
    //NOTE: was const_iterator before, which did not compile with GTKMM4 development branch, probably going to be fixed before final GTKMM4 release though.
    Gtk::TreeModel::iterator it = m_refTreeModel->get_iter(rows[0]);
    if (it) {
        Gtk::TreeModel::Row row = *it;
        instrument = row[m_Columns.m_col_instr];
    }
    return instrument;
}

void MainWindow::add_region_to_dimregs(gig::Region* region, bool stereo, bool all_dimregs)
{
    if (all_dimregs) {
        for (int i = 0 ; i < region->DimensionRegions ; i++) {
            if (region->pDimensionRegions[i]) {
                dimreg_edit.dimregs.insert(region->pDimensionRegions[i]);
            }
        }
    } else {
        m_DimRegionChooser.get_dimregions(region, stereo, dimreg_edit.dimregs);
    }
}

void MainWindow::update_dimregs()
{
    dimreg_edit.dimregs.clear();
    bool all_regions = dimreg_all_regions.get_active();
    bool stereo = dimreg_stereo.get_active();
    bool all_dimregs = dimreg_all_dimregs.get_active();

    if (all_regions) {
        gig::Instrument* instrument = get_instrument();
        if (instrument) {
            for (gig::Region* region = instrument->GetFirstRegion() ;
                 region ;
                 region = instrument->GetNextRegion()) {
                add_region_to_dimregs(region, stereo, all_dimregs);
            }
        }
    } else {
        gig::Region* region = m_RegionChooser.get_region();
        if (region) {
            add_region_to_dimregs(region, stereo, all_dimregs);
        }
    }

    m_RegionChooser.setModifyAllRegions(all_regions);
    m_DimRegionChooser.setModifyAllRegions(all_regions);
    m_DimRegionChooser.setModifyAllDimensionRegions(all_dimregs);
    m_DimRegionChooser.setModifyBothChannels(stereo);

    updateClipboardCopyAvailable();
}

void MainWindow::dimreg_all_dimregs_toggled()
{
    dimreg_stereo.set_sensitive(!dimreg_all_dimregs.get_active());
    update_dimregs();
}

void MainWindow::dimreg_changed()
{
    update_dimregs();
    dimreg_edit.set_dim_region(m_DimRegionChooser.get_main_dimregion());
}

void MainWindow::on_sel_change()
{
#if !USE_GTKMM_BUILDER
    // select item in instrument menu
    std::vector<Gtk::TreeModel::Path> rows = m_TreeView.get_selection()->get_selected_rows();
    if (!rows.empty()) {
        Gtk::TreeModel::iterator it = m_refTreeModel->get_iter(rows[0]);
        if (it) {
            Gtk::TreePath path(it);
            int index = path[0];
            const std::vector<Gtk::Widget*> children =
                instrument_menu->get_children();
            static_cast<Gtk::RadioMenuItem*>(children[index])->set_active();
        }
    }
#endif

    updateScriptListOfMenu();

    m_RegionChooser.set_instrument(get_instrument());

    if (Settings::singleton()->syncSamplerInstrumentSelection) {
        switch_sampler_instrument_signal.emit(get_instrument());
    }
}


LoaderSaverBase::LoaderSaverBase(const Glib::ustring filename, gig::File* gig) :
    filename(filename), gig(gig),
#ifdef GLIB_THREADS
    thread(0),
#endif
    progress(0.f)
{
}

void loader_progress_callback(gig::progress_t* progress)
{
    LoaderSaverBase* loader = static_cast<LoaderSaverBase*>(progress->custom);
    loader->progress_callback(progress->factor);
}

void LoaderSaverBase::progress_callback(float fraction)
{
    {
#ifdef GLIB_THREADS
        Glib::Threads::Mutex::Lock lock(progressMutex);
#else
        std::lock_guard<std::mutex> lock(progressMutex);
#endif
        progress = fraction;
    }
    progress_dispatcher();
}

#if defined(WIN32) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
// make sure stack is 16-byte aligned for SSE instructions
__attribute__((force_align_arg_pointer))
#endif
void LoaderSaverBase::thread_function()
{
#ifdef GLIB_THREADS
    printf("thread_function self=%p\n",
           static_cast<void*>(Glib::Threads::Thread::self()));
#else
    std::cout << "thread_function self=" << std::this_thread::get_id() << "\n";
#endif
    printf("Start %s\n", filename.c_str());
    try {
        gig::progress_t progress;
        progress.callback = loader_progress_callback;
        progress.custom = this;

        thread_function_sub(progress);
        printf("End\n");
        finished_dispatcher();
    } catch (RIFF::Exception e) {
        error_message = e.Message;
        error_dispatcher.emit();
    } catch (...) {
        error_message = _("Unknown exception occurred");
        error_dispatcher.emit();
    }
}

void LoaderSaverBase::launch()
{
#ifdef GLIB_THREADS
#ifdef OLD_THREADS
    thread = Glib::Thread::create(sigc::mem_fun(*this, &LoaderSaverBase::thread_function), true);
#else
    thread = Glib::Threads::Thread::create(sigc::mem_fun(*this, &LoaderSaverBase::thread_function));
#endif
    printf("launch thread=%p\n", static_cast<void*>(thread));
#else
    thread = std::thread([this](){ thread_function(); });
    std::cout << "launch thread=" << thread.get_id() << "\n";
#endif
}

float LoaderSaverBase::get_progress()
{
#ifdef GLIB_THREADS
    Glib::Threads::Mutex::Lock lock(progressMutex);
#else
    std::lock_guard<std::mutex> lock(progressMutex);
#endif
    return progress;
}

Glib::Dispatcher& LoaderSaverBase::signal_progress()
{
    return progress_dispatcher;
}

Glib::Dispatcher& LoaderSaverBase::signal_finished()
{
    return finished_dispatcher;
}

Glib::Dispatcher& LoaderSaverBase::signal_error()
{
    return error_dispatcher;
}

void LoaderSaverBase::join() {
#ifdef GLIB_THREADS
    thread->join();
#else
    thread.join();
#endif
}


Loader::Loader(const char* filename) :
    LoaderSaverBase(filename, 0)
{
}

void Loader::thread_function_sub(gig::progress_t& progress)
{
    RIFF::File* riff = new RIFF::File(filename);
    gig = new gig::File(riff);

    gig->GetInstrument(0, &progress);
}


Saver::Saver(gig::File* file, Glib::ustring filename) :
    LoaderSaverBase(filename, file)
{
}

void Saver::thread_function_sub(gig::progress_t& progress)
{
    // if no filename was provided, that means "save", if filename was provided means "save as"
    if (filename.empty()) {
        if (!Settings::singleton()->saveWithTemporaryFile) {
            // save directly over the existing .gig file
            // (requires less disk space than solution below
            // but may be slower)
            gig->Save(&progress);
        } else {
            // save the file as separate temporary file first,
            // then move the saved file over the old file
            // (may result in performance speedup during save)
            gig::String tmpname = filename + ".TMP";
            gig->Save(tmpname, &progress);
#if defined(WIN32)
            if (!DeleteFile(filename.c_str())) {
                throw RIFF::Exception("Could not replace original file with temporary file (unable to remove original file).");
            }
#else // POSIX ...
            if (unlink(filename.c_str())) {
                throw RIFF::Exception("Could not replace original file with temporary file (unable to remove original file): " + gig::String(strerror(errno)));
            }
#endif
            if (rename(tmpname.c_str(), filename.c_str())) {
#if defined(WIN32)
                throw RIFF::Exception("Could not replace original file with temporary file (unable to rename temp file).");
#else
                throw RIFF::Exception("Could not replace original file with temporary file (unable to rename temp file): " + gig::String(strerror(errno)));
#endif
            }
        }
    } else {
        gig->Save(filename, &progress);
    }
}


ProgressDialog::ProgressDialog(const Glib::ustring& title, Gtk::Window& parent)
    : Gtk::Dialog(title, parent, true)
{
#if USE_GTKMM_BOX
    get_content_area()->pack_start(progressBar);
#else
    get_vbox()->pack_start(progressBar);
#endif
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    show_all_children();
#endif
    resize(600,50);
}

// Clear all GUI elements / controls. This method is typically called
// before a new .gig file is to be created or to be loaded.
void MainWindow::__clear() {
    // forget all samples that ought to be imported
    m_SampleImportQueue.clear();
    // clear the samples and instruments tree views
    m_refTreeModel->clear();
    m_refSamplesTreeModel->clear();
    m_refScriptsTreeModel->clear();
#if !USE_GTKMM_BUILDER
    // remove all entries from "Instrument" menu
    while (!instrument_menu->get_children().empty()) {
        remove_instrument_from_menu(0);
    }
#endif
    // free libgig's gig::File instance
    if (file && !file_is_shared) delete file;
    file = NULL;
    set_file_is_shared(false);
}

void MainWindow::__refreshEntireGUI() {
    // clear the samples and instruments tree views
    m_refTreeModel->clear();
    m_refSamplesTreeModel->clear();
    m_refScriptsTreeModel->clear();
#if !USE_GTKMM_BUILDER
    // remove all entries from "Instrument" menu
    while (!instrument_menu->get_children().empty()) {
        remove_instrument_from_menu(0);
    }
#endif

    if (!this->file) return;

    load_gig(
        this->file, this->file->pInfo->Name.c_str(), this->file_is_shared
    );
}

void MainWindow::on_action_file_new()
{
    if (!file_is_shared && file_is_changed && !close_confirmation_dialog()) return;

    if (file_is_shared && !leaving_shared_mode_dialog()) return;

    // clear all GUI elements
    __clear();
    // create a new .gig file (virtually yet)
    gig::File* pFile = new gig::File;
    // already add one new instrument by default
    gig::Instrument* pInstrument = pFile->AddInstrument();
    pInstrument->pInfo->Name = gig_from_utf8(_("Unnamed Instrument"));
    // update GUI with that new gig::File
    load_gig(pFile, 0 /*no file name yet*/);
}

bool MainWindow::close_confirmation_dialog()
{
    gchar* msg = g_strdup_printf(_("Save changes to \"%s\" before closing?"),
                                 Glib::filename_display_basename(filename).c_str());
    Gtk::MessageDialog dialog(*this, msg, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_NONE);
    g_free(msg);
    dialog.set_secondary_text(_("If you close without saving, your changes will be lost."));
    dialog.add_button(_("Close _Without Saving"), Gtk::RESPONSE_NO);
#if HAS_GTKMM_STOCK
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
    dialog.add_button(file_has_name ? Gtk::Stock::SAVE : Gtk::Stock::SAVE_AS, Gtk::RESPONSE_YES);
#else
    dialog.add_button(_("_OK"), Gtk::RESPONSE_OK);
    dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
#endif
    dialog.set_default_response(Gtk::RESPONSE_YES);
    int response = dialog.run();
    dialog.hide();

    // user decided to exit app without saving
    if (response == Gtk::RESPONSE_NO) return true;

    // user cancelled dialog, thus don't close app
    if (response == Gtk::RESPONSE_CANCEL) return false;

    // TODO: the following return valid is disabled and hard coded instead for
    // now, due to the fact that saving with progress bar is now implemented
    // asynchronously, as a result the app does not close automatically anymore
    // after saving the file has completed
    //
    //   if (response == Gtk::RESPONSE_YES) return file_save();
    //   return response != Gtk::RESPONSE_CANCEL;
    //
    if (response == Gtk::RESPONSE_YES) file_save();
    return false; // always prevent closing the app for now (see comment above)
}

bool MainWindow::leaving_shared_mode_dialog() {
    Glib::ustring msg = _("Detach from sampler and proceed working stand-alone?");
    Gtk::MessageDialog dialog(*this, msg, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_NONE);
    dialog.set_secondary_text(
        _("If you proceed to work on another instrument file, it won't be "
          "used by the sampler until you tell the sampler explicitly to "
          "load it."));
    dialog.add_button(_("_Yes, Detach"), Gtk::RESPONSE_YES);
#if HAS_GTKMM_STOCK
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
#else
    dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
#endif
    dialog.set_default_response(Gtk::RESPONSE_CANCEL);
    int response = dialog.run();
    dialog.hide();
    return response == Gtk::RESPONSE_YES;
}

void MainWindow::on_action_file_open()
{
    if (!file_is_shared && file_is_changed && !close_confirmation_dialog()) return;

    if (file_is_shared && !leaving_shared_mode_dialog()) return;

    Gtk::FileChooserDialog dialog(*this, _("Open file"));
#if HAS_GTKMM_STOCK
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
    dialog.add_button(Gtk::Stock::OPEN, Gtk::RESPONSE_OK);
#else
    dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
    dialog.add_button(_("_Open"), Gtk::RESPONSE_OK);
#endif
    dialog.set_default_response(Gtk::RESPONSE_OK);
#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) || GTKMM_MAJOR_VERSION < 2
    Gtk::FileFilter filter;
    filter.add_pattern("*.gig");
#else
    Glib::RefPtr<Gtk::FileFilter> filter = Gtk::FileFilter::create();
    filter->add_pattern("*.gig");
#endif
    dialog.set_filter(filter);
    if (current_gig_dir != "") {
        dialog.set_current_folder(current_gig_dir);
    }
    if (dialog.run() == Gtk::RESPONSE_OK) {
        dialog.hide();
        std::string filename = dialog.get_filename();
        printf("filename=%s\n", filename.c_str());
#ifdef GLIB_THREADS
        printf("on_action_file_open self=%p\n",
               static_cast<void*>(Glib::Threads::Thread::self()));
#else
        std::cout << "on_action_file_open self=" <<
            std::this_thread::get_id() << "\n";
#endif
        load_file(filename.c_str());
        current_gig_dir = Glib::path_get_dirname(filename);
    }
}

void MainWindow::load_file(const char* name)
{
    __clear();

    progress_dialog = new ProgressDialog( //FIXME: memory leak!
        _("Loading") +  Glib::ustring(" '") +
        Glib::filename_display_basename(name) + "' ...",
        *this
    );
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    progress_dialog->show_all();
#endif
    loader = new Loader(name); //FIXME: memory leak!
    loader->signal_progress().connect(
        sigc::mem_fun(*this, &MainWindow::on_loader_progress));
    loader->signal_finished().connect(
        sigc::mem_fun(*this, &MainWindow::on_loader_finished));
    loader->signal_error().connect(
        sigc::mem_fun(*this, &MainWindow::on_loader_error));
    loader->launch();
}

void MainWindow::load_instrument(gig::Instrument* instr) {
    if (!instr) {
        Glib::ustring txt = "Provided instrument is NULL!\n";
        Gtk::MessageDialog msg(*this, txt, false, Gtk::MESSAGE_ERROR);
        msg.run();
        Gtk::Main::quit();
    }
    // clear all GUI elements
    __clear();
    // load the instrument
    gig::File* pFile = (gig::File*) instr->GetParent();
    load_gig(pFile, 0 /*file name*/, true /*shared instrument*/);
    // automatically select the given instrument
    int i = 0;
    for (gig::Instrument* instrument = pFile->GetFirstInstrument(); instrument;
         instrument = pFile->GetNextInstrument(), ++i)
    {
        if (instrument == instr) {
            // select item in "instruments" tree view
            m_TreeView.get_selection()->select(Gtk::TreePath(ToString(i)));
            // make sure the selected item in the "instruments" tree view is
            // visible (scroll to it)
            m_TreeView.scroll_to_row(Gtk::TreePath(ToString(i)));
#if !USE_GTKMM_BUILDER
            // select item in instrument menu
            {
                const std::vector<Gtk::Widget*> children =
                    instrument_menu->get_children();
                static_cast<Gtk::RadioMenuItem*>(children[i])->set_active();
            }
#endif
            // update region chooser and dimension region chooser
            m_RegionChooser.set_instrument(instr);
            break;
        }
    }
}

void MainWindow::on_loader_progress()
{
    progress_dialog->set_fraction(loader->get_progress());
}

void MainWindow::on_loader_finished()
{
    loader->join();
    printf("Loader finished!\n");
#ifdef GLIB_THREADS
    printf("on_loader_finished self=%p\n",
           static_cast<void*>(Glib::Threads::Thread::self()));
#else
    std::cout << "on_loader_finished self=" <<
        std::this_thread::get_id() << "\n";
#endif
    load_gig(loader->gig, loader->filename.c_str());
    progress_dialog->hide();
}

void MainWindow::on_loader_error()
{
    loader->join();
    Glib::ustring txt = _("Could not load file: ") + loader->error_message;
    Gtk::MessageDialog msg(*this, txt, false, Gtk::MESSAGE_ERROR);
    msg.run();
    progress_dialog->hide();
}

void MainWindow::on_action_file_save()
{
    file_save();
}

bool MainWindow::check_if_savable()
{
    if (!file) return false;

    if (!file->GetFirstSample()) {
        Gtk::MessageDialog(*this, _("The file could not be saved "
                                    "because it contains no samples"),
                           false, Gtk::MESSAGE_ERROR).run();
        return false;
    }

    for (gig::Instrument* instrument = file->GetFirstInstrument() ; instrument ;
         instrument = file->GetNextInstrument()) {
        if (!instrument->GetFirstRegion()) {
            Gtk::MessageDialog(*this, _("The file could not be saved "
                                        "because there are instruments "
                                        "that have no regions"),
                               false, Gtk::MESSAGE_ERROR).run();
            return false;
        }
    }
    return true;
}

bool MainWindow::file_save()
{
    if (!check_if_savable()) return false;
    if (!file_is_shared && !file_has_name) return file_save_as();

    std::cout << "Saving file\n" << std::flush;
    file_structure_to_be_changed_signal.emit(this->file);

    progress_dialog = new ProgressDialog( //FIXME: memory leak!
        _("Saving") +  Glib::ustring(" '") +
        Glib::filename_display_basename(this->filename) + "' ...",
        *this
    );
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    progress_dialog->show_all();
#endif
    saver = new Saver(this->file); //FIXME: memory leak!
    saver->signal_progress().connect(
        sigc::mem_fun(*this, &MainWindow::on_saver_progress));
    saver->signal_finished().connect(
        sigc::mem_fun(*this, &MainWindow::on_saver_finished));
    saver->signal_error().connect(
        sigc::mem_fun(*this, &MainWindow::on_saver_error));
    saver->launch();

    return true;
}

void MainWindow::on_saver_progress()
{
    progress_dialog->set_fraction(saver->get_progress());
}

void MainWindow::on_saver_error()
{
    saver->join();
    file_structure_changed_signal.emit(this->file);
    Glib::ustring txt = _("Could not save file: ") + saver->error_message;
    Gtk::MessageDialog msg(*this, txt, false, Gtk::MESSAGE_ERROR);
    msg.run();
}

void MainWindow::on_saver_finished()
{
    saver->join();
    this->file = saver->gig;
    this->filename = saver->filename;
    current_gig_dir = Glib::path_get_dirname(filename);
    set_title(Glib::filename_display_basename(filename));
    file_has_name = true;
    file_is_changed = false;
    std::cout << "Saving file done. Importing queued samples now ...\n" << std::flush;
    __import_queued_samples();
    std::cout << "Importing queued samples done.\n" << std::flush;

    file_structure_changed_signal.emit(this->file);

    __refreshEntireGUI();
    progress_dialog->hide();
}

void MainWindow::on_action_file_save_as()
{
    if (!check_if_savable()) return;
    file_save_as();
}

bool MainWindow::file_save_as()
{
    Gtk::FileChooserDialog dialog(*this, _("Save as"), Gtk::FILE_CHOOSER_ACTION_SAVE);
#if HAS_GTKMM_STOCK
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
    dialog.add_button(Gtk::Stock::SAVE, Gtk::RESPONSE_OK);
#else
    dialog.add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
    dialog.add_button(_("_Save"), Gtk::RESPONSE_OK);
#endif
    dialog.set_default_response(Gtk::RESPONSE_OK);
    dialog.set_do_overwrite_confirmation();

#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) || GTKMM_MAJOR_VERSION < 2
    Gtk::FileFilter filter;
    filter.add_pattern("*.gig");
#else
    Glib::RefPtr<Gtk::FileFilter> filter = Gtk::FileFilter::create();
    filter->add_pattern("*.gig");
#endif
    dialog.set_filter(filter);

    // set initial dir and filename of the Save As dialog
    // and prepare that initial filename as a copy of the gig
    {
        std::string basename = Glib::path_get_basename(filename);
        std::string dir = Glib::path_get_dirname(filename);
        basename = std::string(_("copy_of_")) + basename;
        Glib::ustring copyFileName = Glib::build_filename(dir, basename);
        if (Glib::path_is_absolute(filename)) {
            dialog.set_filename(copyFileName);
        } else {
            if (current_gig_dir != "") dialog.set_current_folder(current_gig_dir);
        }
        dialog.set_current_name(Glib::filename_display_basename(copyFileName));
    }

    // show warning in the dialog
    HBox descriptionArea;
    descriptionArea.set_spacing(15);
    Gtk::Image warningIcon;
    warningIcon.set_from_icon_name("dialog-warning",
                                   Gtk::IconSize(Gtk::ICON_SIZE_DIALOG));
    descriptionArea.pack_start(warningIcon, Gtk::PACK_SHRINK);
#if GTKMM_MAJOR_VERSION < 3
    view::WrapLabel description;
#else
    Gtk::Label description;
    description.set_line_wrap();
#endif
    description.set_markup(
        _("\n<b>CAUTION:</b> You <b>MUST</b> use the "
          "<span style=\"italic\">\"Save\"</span> dialog instead of "
          "<span style=\"italic\">\"Save As...\"</span> if you want to save "
          "to the same .gig file. Using "
          "<span style=\"italic\">\"Save As...\"</span> for writing to the "
          "same .gig file will end up in corrupted sample wave data!\n")
    );
    descriptionArea.pack_start(description);
#if USE_GTKMM_BOX
    dialog.get_content_area()->pack_start(descriptionArea, Gtk::PACK_SHRINK);
#else
    dialog.get_vbox()->pack_start(descriptionArea, Gtk::PACK_SHRINK);
#endif
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    descriptionArea.show_all();
#endif

    if (dialog.run() == Gtk::RESPONSE_OK) {
        dialog.hide();
        std::string filename = dialog.get_filename();
        if (!Glib::str_has_suffix(filename, ".gig")) {
            filename += ".gig";
        }
        printf("filename=%s\n", filename.c_str());

        progress_dialog = new ProgressDialog( //FIXME: memory leak!
            _("Saving") +  Glib::ustring(" '") +
            Glib::filename_display_basename(filename) + "' ...",
            *this
        );
#if HAS_GTKMM_SHOW_ALL_CHILDREN
        progress_dialog->show_all();
#endif

        saver = new Saver(file, filename); //FIXME: memory leak!
        saver->signal_progress().connect(
            sigc::mem_fun(*this, &MainWindow::on_saver_progress));
        saver->signal_finished().connect(
            sigc::mem_fun(*this, &MainWindow::on_saver_finished));
        saver->signal_error().connect(
            sigc::mem_fun(*this, &MainWindow::on_saver_error));
        saver->launch();

        return true;
    }
    return false;
}

// actually write the sample(s)' data to the gig file
void MainWindow::__import_queued_samples() {
    std::cout << "Starting sample import\n" << std::flush;
    Glib::ustring error_files;
    printf("Samples to import: %d\n", int(m_SampleImportQueue.size()));
    for (std::map<gig::Sample*, SampleImportItem>::iterator iter = m_SampleImportQueue.begin();
         iter != m_SampleImportQueue.end(); ) {
        printf("Importing sample %s\n",iter->second.sample_path.c_str());
        SF_INFO info;
        info.format = 0;
        SNDFILE* hFile = sf_open(iter->second.sample_path.c_str(), SFM_READ, &info);
        sf_command(hFile, SFC_SET_SCALE_FLOAT_INT_READ, 0, SF_TRUE);
        try {
            if (!hFile) throw std::string(_("could not open file"));
            // determine sample's bit depth
            int bitdepth;
            switch (info.format & 0xff) {
                case SF_FORMAT_PCM_S8:
                case SF_FORMAT_PCM_16:
                case SF_FORMAT_PCM_U8:
                    bitdepth = 16;
                    break;
                case SF_FORMAT_PCM_24:
                case SF_FORMAT_PCM_32:
                case SF_FORMAT_FLOAT:
                case SF_FORMAT_DOUBLE:
                    bitdepth = 24;
                    break;
                default:
                    sf_close(hFile); // close sound file
                    throw std::string(_("format not supported")); // unsupported subformat (yet?)
            }

            // reset write position for sample
            iter->first->SetPos(0);

            const int bufsize = 10000;
            switch (bitdepth) {
                case 16: {
                    short* buffer = new short[bufsize * info.channels];
                    sf_count_t cnt = info.frames;
                    while (cnt) {
                        // libsndfile does the conversion for us (if needed)
                        int n = sf_readf_short(hFile, buffer, bufsize);
                        // write from buffer directly (physically) into .gig file
                        iter->first->Write(buffer, n);
                        cnt -= n;
                    }
                    delete[] buffer;
                    break;
                }
                case 24: {
                    int* srcbuf = new int[bufsize * info.channels];
                    uint8_t* dstbuf = new uint8_t[bufsize * 3 * info.channels];
                    sf_count_t cnt = info.frames;
                    while (cnt) {
                        // libsndfile returns 32 bits, convert to 24
                        int n = sf_readf_int(hFile, srcbuf, bufsize);
                        int j = 0;
                        for (int i = 0 ; i < n * info.channels ; i++) {
                            dstbuf[j++] = srcbuf[i] >> 8;
                            dstbuf[j++] = srcbuf[i] >> 16;
                            dstbuf[j++] = srcbuf[i] >> 24;
                        }
                        // write from buffer directly (physically) into .gig file
                        iter->first->Write(dstbuf, n);
                        cnt -= n;
                    }
                    delete[] srcbuf;
                    delete[] dstbuf;
                    break;
                }
            }
            // cleanup
            sf_close(hFile);
            // let the sampler re-cache the sample if needed
            sample_changed_signal.emit(iter->first);
            // on success we remove the sample from the import queue,
            // otherwise keep it, maybe it works the next time ?
            std::map<gig::Sample*, SampleImportItem>::iterator cur = iter;
            ++iter;
            m_SampleImportQueue.erase(cur);
        } catch (std::string what) {
            // remember the files that made trouble (and their cause)
            if (!error_files.empty()) error_files += "\n";
            error_files += iter->second.sample_path += " (" + what + ")";
            ++iter;
        }
    }
    // show error message box when some sample(s) could not be imported
    if (!error_files.empty()) {
        Glib::ustring txt = _("Could not import the following sample(s):\n") + error_files;
        Gtk::MessageDialog msg(*this, txt, false, Gtk::MESSAGE_ERROR);
        msg.run();
    }
}

void MainWindow::on_action_file_properties()
{
    propDialog.show();
    propDialog.deiconify();
}

void MainWindow::on_action_warn_user_on_extensions() {
    Settings::singleton()->warnUserOnExtensions =
        !Settings::singleton()->warnUserOnExtensions;
}

void MainWindow::on_action_show_tooltips() {
    Settings::singleton()->showTooltips =
        !Settings::singleton()->showTooltips;

    on_show_tooltips_changed();
}

void MainWindow::on_show_tooltips_changed() {
    const bool b = Settings::singleton()->showTooltips;

    dimreg_label.set_has_tooltip(b);
    dimreg_all_regions.set_has_tooltip(b);
    dimreg_all_dimregs.set_has_tooltip(b);
    dimreg_stereo.set_has_tooltip(b);

    // Not doing this here, we let onQueryTreeViewTooltip() handle this per cell
    //m_TreeView.set_has_tooltip(b);

    m_TreeViewSamples.set_has_tooltip(b);
    m_TreeViewScripts.set_has_tooltip(b);

    set_has_tooltip(b);
}

void MainWindow::on_action_sync_sampler_instrument_selection() {
    Settings::singleton()->syncSamplerInstrumentSelection =
        !Settings::singleton()->syncSamplerInstrumentSelection;
}

void MainWindow::on_action_move_root_note_with_region_moved() {
    Settings::singleton()->moveRootNoteWithRegionMoved =
        !Settings::singleton()->moveRootNoteWithRegionMoved;
}

void MainWindow::on_action_help_about()
{
    Gtk::AboutDialog dialog;
#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION >= 12) || GTKMM_MAJOR_VERSION > 2
    dialog.set_program_name("Gigedit");
#else
    dialog.set_name("Gigedit");
#endif
    dialog.set_version(VERSION);
    dialog.set_copyright("Copyright (C) 2006-2019 Andreas Persson");
    const std::string sComment =
        _("Built " __DATE__ "\nUsing ") +
        ::gig::libraryName() + " " + ::gig::libraryVersion() + "\n\n" +
        _(
            "Gigedit is released under the GNU General Public License.\n"
            "\n"
            "This program is distributed WITHOUT ANY WARRANTY; So better "
            "backup your Gigasampler/GigaStudio files before editing them with "
            "this application.\n"
            "\n"
            "Please report bugs to: http://bugs.linuxsampler.org"
        );
    dialog.set_comments(sComment.c_str());
    dialog.set_website("http://www.linuxsampler.org");
    dialog.set_website_label("http://www.linuxsampler.org");
    dialog.set_position(Gtk::WIN_POS_CENTER);
    dialog.run();
}

PropDialog::PropDialog()
    : eFileFormat(_("File Format")),
      eName(_("Name")),
      eCreationDate(_("Creation date")),
      eComments(_("Comments")),
      eProduct(_("Product")),
      eCopyright(_("Copyright")),
      eArtists(_("Artists")),
      eGenre(_("Genre")),
      eKeywords(_("Keywords")),
      eEngineer(_("Engineer")),
      eTechnician(_("Technician")),
      eSoftware(_("Software")),
      eMedium(_("Medium")),
      eSource(_("Source")),
      eSourceForm(_("Source form")),
      eCommissioned(_("Commissioned")),
      eSubject(_("Subject")),
#if HAS_GTKMM_STOCK
      quitButton(Gtk::Stock::CLOSE),
#else
      quitButton(_("_Close")),
#endif
      table(2, 1),
      m_file(NULL)
{
    if (!Settings::singleton()->autoRestoreWindowDimension) {
        set_default_size(470, 390);
        set_position(Gtk::WIN_POS_MOUSE);
    }

    set_title(_("File Properties"));
    eName.set_width_chars(50);

    connect(eFileFormat, &PropDialog::set_FileFormat);
    connect(eName, &DLS::Info::Name);
    connect(eCreationDate, &DLS::Info::CreationDate);
    connect(eComments, &DLS::Info::Comments);
    connect(eProduct, &DLS::Info::Product);
    connect(eCopyright, &DLS::Info::Copyright);
    connect(eArtists, &DLS::Info::Artists);
    connect(eGenre, &DLS::Info::Genre);
    connect(eKeywords, &DLS::Info::Keywords);
    connect(eEngineer, &DLS::Info::Engineer);
    connect(eTechnician, &DLS::Info::Technician);
    connect(eSoftware, &DLS::Info::Software);
    connect(eMedium, &DLS::Info::Medium);
    connect(eSource, &DLS::Info::Source);
    connect(eSourceForm, &DLS::Info::SourceForm);
    connect(eCommissioned, &DLS::Info::Commissioned);
    connect(eSubject, &DLS::Info::Subject);

    table.add(eFileFormat);
    table.add(eName);
    table.add(eCreationDate);
    table.add(eComments);
    table.add(eProduct);
    table.add(eCopyright);
    table.add(eArtists);
    table.add(eGenre);
    table.add(eKeywords);
    table.add(eEngineer);
    table.add(eTechnician);
    table.add(eSoftware);
    table.add(eMedium);
    table.add(eSource);
    table.add(eSourceForm);
    table.add(eCommissioned);
    table.add(eSubject);

#if USE_GTKMM_GRID
    table.set_column_spacing(5);
#else
    table.set_col_spacings(5);
#endif

    add(vbox);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && GTKMM_MINOR_VERSION > 24)
    table.set_margin(5);
#else
    table.set_border_width(5);
#endif
    vbox.add(table);
    vbox.pack_start(buttonBox, Gtk::PACK_SHRINK);
    buttonBox.set_layout(Gtk::BUTTONBOX_END);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && GTKMM_MINOR_VERSION > 24)
    buttonBox.set_margin(5);
#else
    buttonBox.set_border_width(5);
#endif
    buttonBox.show();
    buttonBox.pack_start(quitButton);
    quitButton.set_can_default();
    quitButton.grab_focus();
    quitButton.signal_clicked().connect(
        sigc::mem_fun(*this, &PropDialog::hide));

    quitButton.show();
    vbox.show();
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    show_all_children();
#endif
}

void PropDialog::set_file(gig::File* file)
{
    m_file = file;
    update(file->pInfo);

    // update file format version combo box
    const std::string sGiga = "Gigasampler/GigaStudio v";
    const int major = file->pVersion->major;
    std::vector<std::string> txts;
    std::vector<int> values;
    txts.push_back(sGiga + "2"); values.push_back(2);
    txts.push_back(sGiga + "3"); values.push_back(3);
    txts.push_back(sGiga + "4"); values.push_back(4);
    if (major < 2 || major > 4) {
        txts.push_back(sGiga + ToString(major)); values.push_back(major);
    }
    std::vector<const char*> texts;
    for (int i = 0; i < txts.size(); ++i) texts.push_back(txts[i].c_str());
    texts.push_back(NULL); values.push_back(0);

    update_model++;
    eFileFormat.set_choices(&texts[0], &values[0]);
    eFileFormat.set_value(major);
    update_model--;
}

void PropDialog::set_FileFormat(int value)
{
    m_file->pVersion->major = value;
}


void InstrumentProps::set_Name(const gig::String& name)
{
    m->pInfo->Name = name;
}

void InstrumentProps::update_name()
{
    update_model++;
    eName.set_value(m->pInfo->Name);
    update_model--;
}

void InstrumentProps::set_IsDrum(bool value)
{
    m->IsDrum = value;
}

void InstrumentProps::set_MIDIBank(uint16_t value)
{
    m->MIDIBank = value;
}

void InstrumentProps::set_MIDIProgram(uint32_t value)
{
    m->MIDIProgram = value;
}

InstrumentProps::InstrumentProps() :
#if HAS_GTKMM_STOCK
    quitButton(Gtk::Stock::CLOSE),
#else
    quitButton(_("_Close")),
#endif
    table(2,1),
    eName(_("Name")),
    eIsDrum(_("Is drum")),
    eMIDIBank(_("MIDI bank"), 0, 16383),
    eMIDIProgram(_("MIDI program")),
    eAttenuation(_("Attenuation"), 0, 96, 0, 1),
    eGainPlus6(_("Gain +6dB"), eAttenuation, -6),
    eEffectSend(_("Effect send"), 0, 65535),
    eFineTune(_("Fine tune"), -8400, 8400),
    ePitchbendRange(_("Pitchbend range"), 0, 48),
    ePianoReleaseMode(_("Piano release mode")),
    eDimensionKeyRangeLow(_("Keyswitching range low")),
    eDimensionKeyRangeHigh(_("Keyswitching range high"))
{
    if (!Settings::singleton()->autoRestoreWindowDimension) {
        //set_default_size(470, 390);
        set_position(Gtk::WIN_POS_MOUSE);
    }

    set_title(_("Instrument Properties"));

    eDimensionKeyRangeLow.set_tip(
        _("start of the keyboard area which should switch the "
          "\"keyswitching\" dimension")
    );
    eDimensionKeyRangeHigh.set_tip(
        _("end of the keyboard area which should switch the "
          "\"keyswitching\" dimension")
    );

    connect(eName, &InstrumentProps::set_Name);
    connect(eIsDrum, &InstrumentProps::set_IsDrum);
    connect(eMIDIBank, &InstrumentProps::set_MIDIBank);
    connect(eMIDIProgram, &InstrumentProps::set_MIDIProgram);
    connect(eAttenuation, &gig::Instrument::Attenuation);
    connect(eGainPlus6, &gig::Instrument::Attenuation);
    connect(eEffectSend, &gig::Instrument::EffectSend);
    connect(eFineTune, &gig::Instrument::FineTune);
    connect(ePitchbendRange, &gig::Instrument::PitchbendRange);
    connect(ePianoReleaseMode, &gig::Instrument::PianoReleaseMode);
    connect(eDimensionKeyRangeLow, eDimensionKeyRangeHigh,
            &gig::Instrument::DimensionKeyRange);

    eName.signal_value_changed().connect(sig_name_changed.make_slot());

#if USE_GTKMM_GRID
    table.set_column_spacing(5);
#else
    table.set_col_spacings(5);
#endif

    table.add(eName);
    table.add(eIsDrum);
    table.add(eMIDIBank);
    table.add(eMIDIProgram);
    table.add(eAttenuation);
    table.add(eGainPlus6);
    table.add(eEffectSend);
    table.add(eFineTune);
    table.add(ePitchbendRange);
    table.add(ePianoReleaseMode);
    table.add(eDimensionKeyRangeLow);
    table.add(eDimensionKeyRangeHigh);

    add(vbox);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && GTKMM_MINOR_VERSION > 24)
    table.set_margin(5);
#else
    table.set_border_width(5);
#endif
    vbox.pack_start(table);
    table.show();
    vbox.pack_start(buttonBox, Gtk::PACK_SHRINK);
    buttonBox.set_layout(Gtk::BUTTONBOX_END);
#if GTKMM_MAJOR_VERSION > 3 || (GTKMM_MAJOR_VERSION == 3 && GTKMM_MINOR_VERSION > 24)
    buttonBox.set_margin(5);
#else
    buttonBox.set_border_width(5);
#endif
    buttonBox.show();
    buttonBox.pack_start(quitButton);
    quitButton.set_can_default();
    quitButton.grab_focus();

    quitButton.signal_clicked().connect(
        sigc::mem_fun(*this, &InstrumentProps::hide));

    quitButton.show();
    vbox.show();
#if HAS_GTKMM_SHOW_ALL_CHILDREN
    show_all_children();
#endif
}

void InstrumentProps::set_instrument(gig::Instrument* instrument)
{
    update(instrument);

    update_model++;
    eName.set_value(instrument->pInfo->Name);
    eIsDrum.set_value(instrument->IsDrum);
    eMIDIBank.set_value(instrument->MIDIBank);
    eMIDIProgram.set_value(instrument->MIDIProgram);
    update_model--;
}


void MainWindow::file_changed()
{
    if (file && !file_is_changed) {
        set_title("*" + get_title());
        file_is_changed = true;
    }
}

void MainWindow::updateSampleRefCountMap(gig::File* gig) {
    sample_ref_count.clear();
    
    if (!gig) return;

    for (gig::Instrument* instrument = gig->GetFirstInstrument(); instrument;
         instrument = gig->GetNextInstrument())
    {
        for (gig::Region* rgn = instrument->GetFirstRegion(); rgn;
             rgn = instrument->GetNextRegion())
        {
            for (int i = 0; i < 256; ++i) {
                if (!rgn->pDimensionRegions[i]) continue;
                if (rgn->pDimensionRegions[i]->pSample) {
                    sample_ref_count[rgn->pDimensionRegions[i]->pSample]++;
                }
            }
        }
    }
}

bool MainWindow::onQueryTreeViewTooltip(int x, int y, bool keyboardTip, const Glib::RefPtr<Gtk::Tooltip>& tooltip) {
    Gtk::TreeModel::iterator iter;
    if (!m_TreeView.get_tooltip_context_iter(x, y, keyboardTip, iter)) {
        return false;
    }
    Gtk::TreeModel::Path path(iter);
    Gtk::TreeModel::Row row = *iter;
    Gtk::TreeViewColumn* pointedColumn = NULL;
    // resolve the precise table column the mouse points to
    {
        Gtk::TreeModel::Path path; // unused
        int cellX, cellY; // unused
        m_TreeView.get_path_at_pos(x, y, path, pointedColumn, cellX, cellY);
    }
    Gtk::TreeViewColumn* scriptsColumn = m_TreeView.get_column(2);
    if (pointedColumn == scriptsColumn) { // mouse hovers scripts column ...
        // show the script(s) assigned to the hovered instrument as tooltip
        tooltip->set_markup( row[m_Columns.m_col_tooltip] );
        m_TreeView.set_tooltip_cell(tooltip, &path, scriptsColumn, NULL);
    } else {
        // if beginners' tooltips is disabled then don't show the following one
        if (!Settings::singleton()->showTooltips)
            return false;
        // yeah, a beginners tooltip
        tooltip->set_text(_(
            "Right click here for actions on instruments & MIDI Rules. "
            "Drag & drop to change the order of instruments."
        ));
        m_TreeView.set_tooltip_cell(tooltip, &path, pointedColumn, NULL);
    }
    return true;
}

static Glib::ustring scriptTooltipFor(gig::Instrument* instrument, int index) {
    Glib::ustring name(gig_to_utf8(instrument->pInfo->Name));
    const int iScriptSlots = instrument->ScriptSlotCount();
    Glib::ustring tooltip = "<u>(" + ToString(index) + ") ���"  + name + "���</u>\n\n";
    if (!iScriptSlots)
        tooltip += "<span foreground='red'><i>No script assigned</i></span>";
    else {
        for (int i = 0; i < iScriptSlots; ++i) {
            tooltip += "��� " + ToString(i+1) + ". Script: ���<span foreground='#46DEFF'><b>" +
                       instrument->GetScriptOfSlot(i)->Name + "</b></span>���";
            if (i + 1 < iScriptSlots) tooltip += "\n\n";
        }
    }
    return tooltip;
}

void MainWindow::load_gig(gig::File* gig, const char* filename, bool isSharedInstrument)
{
    file = 0;
    set_file_is_shared(isSharedInstrument);

    this->filename =
        (filename && strlen(filename) > 0) ?
            filename : (!gig->GetFileName().empty()) ?
                gig->GetFileName() : _("Unsaved Gig File");
    set_title(Glib::filename_display_basename(this->filename));
    file_has_name = filename;
    file_is_changed = false;

    propDialog.set_file(gig);

    instrument_name_connection.block();
    int index = 0;
    for (gig::Instrument* instrument = gig->GetFirstInstrument() ; instrument ;
         instrument = gig->GetNextInstrument(), ++index) {
        Glib::ustring name(gig_to_utf8(instrument->pInfo->Name));
        const int iScriptSlots = instrument->ScriptSlotCount();

        Gtk::TreeModel::iterator iter = m_refTreeModel->append();
        Gtk::TreeModel::Row row = *iter;
        row[m_Columns.m_col_nr] = index;
        row[m_Columns.m_col_name] = name;
        row[m_Columns.m_col_instr] = instrument;
        row[m_Columns.m_col_scripts] = iScriptSlots ? ToString(iScriptSlots) : "";
        row[m_Columns.m_col_tooltip] = scriptTooltipFor(instrument, index);

#if !USE_GTKMM_BUILDER
        add_instrument_to_menu(name);
#endif
    }
    instrument_name_connection.unblock();
#if !USE_GTKMM_BUILDER
    uiManager->get_widget("/MenuBar/MenuInstrument/AllInstruments")->show();
#endif

    updateSampleRefCountMap(gig);

    for (gig::Group* group = gig->GetFirstGroup(); group; group = gig->GetNextGroup()) {
        if (group->Name != "") {
            Gtk::TreeModel::iterator iterGroup = m_refSamplesTreeModel->append();
            Gtk::TreeModel::Row rowGroup = *iterGroup;
            rowGroup[m_SamplesModel.m_col_name]   = gig_to_utf8(group->Name);
            rowGroup[m_SamplesModel.m_col_group]  = group;
            rowGroup[m_SamplesModel.m_col_sample] = NULL;
            for (gig::Sample* sample = group->GetFirstSample();
                 sample; sample = group->GetNextSample()) {
                Gtk::TreeModel::iterator iterSample =
                    m_refSamplesTreeModel->append(rowGroup.children());
                Gtk::TreeModel::Row rowSample = *iterSample;
                rowSample[m_SamplesModel.m_col_name] =
                    gig_to_utf8<