# GNU Solfege - free ear training software
# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008  Tom Cato Amundsen
#
# 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 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys
import os
import gobject, gtk
import gu, mpd
import configureoutput
import notenamespinbutton
from instrumentselector import nInstrumentSelector, InstrumentConfigurator
import cfg
import osutils
import soundcard
import languages
import filesystem

if sys.platform == 'win32':
    try:
        from soundcard import winmidi
    except ImportError, e:
        print "Loading winmidi.pyd failed:"
        print e
        winmidi = None

def find_wav_player_programs():
    ret = []
    for p, cmd in (('/usr/bin/play', '/usr/bin/play %s'),
                   ('/usr/bin/aplay', '/usr/bin/aplay %s'),
                   ('/usr/bin/esdplay', '/usr/bin/esdplay %s')):
        if os.path.exists(p):
            ret.append(cmd)
    return ret

def find_midi_player_programs():
    for p, cmd in (('/usr/bin/timidity', '/usr/bin/timidity -idqq %s'),
                   ('/usr/bin/drvmidi', '/usr/bin/drvmidi'),
                   ('/usr/bin/playmidi', '/usr/bin/playmidi')):
        if os.path.exists(p):
            yield cmd

class ConfigWindow(gtk.Dialog, cfg.ConfigUtils):
    def on_destroy(self, widget, e):
        self.m_app.m_ui.g_config_window.destroy()
        self.m_app.m_ui.g_config_window = None
    def __init__(self, app):
        gtk.Dialog.__init__(self, _("GNU Solfege Preferences"),
             app.m_ui, 0,
             (gtk.STOCK_HELP, gtk.RESPONSE_HELP, gtk.STOCK_CLOSE, gtk.RESPONSE_CLOSE))
        cfg.ConfigUtils.__init__(self, 'configwindow')
        self.connect('response', self.apply_and_close)
        # We do this so that the window is only hidden when the
        # user click on the close button provided by the window manager.
        self.connect('delete-event', self.on_destroy)#lambda w, e: True)
        self.set_default_size(400, 400)
        self.m_app = app
        self.g_notebook = gtk.Notebook()
        self.vbox.pack_start(self.g_notebook)
        ########
        # midi #
        ########
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("Midi")))

        vbox, category_vbox = gu.hig_category_vbox(_("Tempo"))
        page_vbox.pack_start(vbox, False)
        sizegroup = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)

        self.g_default_bpm = gu.nSpinButton('config', 'default_bpm',
            gtk.Adjustment(self.get_int('config/default_bpm'), 10, 500, 1, 10))
        box = gu.hig_label_widget(_("_Default bpm:"), self.g_default_bpm, sizegroup)
        category_vbox.pack_start(box, False)

        self.g_arpeggio_bpm = gu.nSpinButton('config', 'arpeggio_bpm',
            gtk.Adjustment(self.get_int('config/arpeggio_bpm'), 10, 500, 1, 10))
        box = gu.hig_label_widget(_("A_rpeggio bpm:"), self.g_arpeggio_bpm, sizegroup)
        category_vbox.pack_start(box, False)

        box, category_vbox = gu.hig_category_vbox(_("Preferred instrument"))
        page_vbox.pack_start(box, False)
        self.g_instrsel = nInstrumentSelector('config',
                        'preferred_instrument', sizegroup)
        category_vbox.pack_start(self.g_instrsel, False)

        box, category_vbox = gu.hig_category_vbox(_("Chord instruments"))
        page_vbox.pack_start(box, False)
        self.g_instrument_configurator  \
              = InstrumentConfigurator("config", 3,
                    _("Use different instruments for chords and harmonic intervals."))
        category_vbox.pack_start(self.g_instrument_configurator, False)

        vbox, category_box = gu.hig_category_vbox(_("Preferred percussion instruments"))
        page_vbox.pack_start(vbox, False)
        category_box.pack_start(gu.hig_label_widget(
            _("Count in:"),
            gu.PercussionNameComboBoxEntry("config", "countin_perc", "Claves"),
            sizegroup))
        category_box.pack_start(gu.hig_label_widget(
            _("Rhythm:"),
            gu.PercussionNameComboBoxEntry("config", "rhythm_perc", "Side Stick"),
            sizegroup))
        ########
        # user #
        ########
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("User")))

        box, category_vbox = gu.hig_category_vbox(_("User's voice"))
        page_vbox.pack_start(box, False)
        sizegroup = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)

        self.g_highest_singable = notenamespinbutton.NotenameSpinButton(
            self.get_string('user/highest_pitch'))
        box = gu.hig_label_widget(_("Highest note user can sing:"),
                                  self.g_highest_singable,
                                  sizegroup)
        category_vbox.pack_start(box)

        self.g_lowest_singable = notenamespinbutton.NotenameSpinButton(
            self.get_string('user/lowest_pitch'))
        box = gu.hig_label_widget(_("Lowest note user can sing:"),
                                  self.g_lowest_singable,
                                  sizegroup)
        category_vbox.pack_start(box)
        notenamespinbutton.nNotenameRangeController(
                  self.g_lowest_singable, self.g_highest_singable,
                  mpd.LOWEST_NOTENAME, mpd.HIGHEST_NOTENAME,
                  'user', 'lowest_pitch', 'highest_pitch')


        box, category_vbox = gu.hig_category_vbox(_("Sex"))
        page_vbox.pack_start(box, False)
        self.g_sex_male = gtk.RadioButton(None, _("_Male"))
        self.g_sex_male.connect('toggled', lambda w: self.set_string('user/sex', 'male'))
        category_vbox.pack_start(self.g_sex_male, False)
        self.g_sex_female = gtk.RadioButton(self.g_sex_male, _("_Female or child"))
        self.g_sex_female.connect('toggled', lambda w: self.set_string('user/sex', 'female'))
        category_vbox.pack_start(self.g_sex_female, False)
        if self.get_string('user/sex') == 'female':
            self.g_sex_female.set_active(True)
        #####################
        # external programs #
        #####################
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("External programs")))

        box, category_vbox = gu.hig_category_vbox(_("Convertors"))
        page_vbox.pack_start(box, False)
        sizegroup = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)

        # midi_to_wav
        liststore = gtk.ListStore(gobject.TYPE_STRING)
        liststore.append(("/usr/bin/timidity -Ow %(in)s -o %(out)s",))
        self.g_wav_convertor = gtk.ComboBoxEntry(liststore)
        self.g_wav_convertor.child.set_text(
            self.get_string("app/midi_to_wav_cmd"))
        self.g_wav_convertor.connect('changed', 
            lambda w: self.set_string('app/midi_to_wav_cmd', w.child.get_text()))
        category_vbox.pack_start(
            gu.hig_label_widget(_("MIDI to WAV convertor:"),
            self.g_wav_convertor, sizegroup))
        # wav_to_mp3
        liststore = gtk.ListStore(gobject.TYPE_STRING)
        liststore.append(("/usr/bin/lame %(in)s %(out)s",))
        self.g_mp3_convertor = gtk.ComboBoxEntry(liststore)
        self.g_mp3_convertor.child.set_text(
            self.get_string("app/wav_to_mp3_cmd"))
        self.g_mp3_convertor.connect('changed', 
            lambda w: self.set_string('app/wav_to_mp3_cmd', w.child.get_text()))
        category_vbox.pack_start(
            gu.hig_label_widget(_("WAV to MP3 convertor:"),
            self.g_mp3_convertor, sizegroup))
        # wav_to_ogg
        liststore = gtk.ListStore(gobject.TYPE_STRING)
        liststore.append(("/usr/bin/oggenc %(in)s",))
        self.g_ogg_convertor = gtk.ComboBoxEntry(liststore)
        self.g_ogg_convertor.child.set_text(
            self.get_string("app/wav_to_ogg_cmd"))
        self.g_ogg_convertor.connect('changed', 
            lambda w: self.set_string('app/wav_to_ogg_cmd', w.child.get_text()))
        category_vbox.pack_start(
            gu.hig_label_widget(_("WAV to OGG convertor:"),
            self.g_ogg_convertor, sizegroup))

        self.add_gui_for_external_programs(page_vbox)

        box, category_vbox = gu.hig_category_vbox(_("Misc"))
        page_vbox.pack_start(box, False)

        liststore = gtk.ListStore(gobject.TYPE_STRING)
        for n in ("xterm -e mutt", "thunderbird"):
            liststore.append((n,))
        self.g_mail_program = gtk.ComboBoxEntry(liststore)
        self.g_mail_program.child.set_text(self.get_string("config/mua"))
        self.g_mail_program.child.connect('changed', lambda w: self.set_string('config/mua', self.g_mail_program.child.get_text()))
        box = gu.hig_label_widget(_("_Mail program:"), self.g_mail_program, sizegroup)
        category_vbox.pack_start(box)

        #######
        # Gui #
        #######
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("Gui")))

        box, category_vbox = gu.hig_category_vbox(_("Gui"))
        page_vbox.pack_start(box, False)

        self.g_mainwin_user_resizeable = gu.nCheckButton('gui',
          'mainwin_user_resizeable', _("_User resizeable main window"))
        category_vbox.pack_start(self.g_mainwin_user_resizeable, False)

        # Combobox to select language
        hbox = gtk.HBox()
        hbox.set_spacing(6)
        label = gtk.Label()
        label.set_text_with_mnemonic(_("Select _language:"))
        hbox.pack_start(label, False)
        self.g_language = gtk.combo_box_new_text()
        for n in languages.languages:
            self.g_language.append_text(n)
        label.set_mnemonic_widget(self.g_language)
        if sys.platform == 'win32':
            lang = self.m_app.win32_get_langenviron()
            if lang in languages.languages:
                idx = languages.languages.index(lang)
            else:
                idx = 0
        else:
            if cfg.get_string('app/lc_messages') in languages.languages:
                idx = languages.languages.index(cfg.get_string('app/lc_messages'))
            else:
                idx = 0
        self.g_language.set_active(idx)
        def f(combobox):
            cfg.set_string('app/lc_messages', languages.languages[combobox.get_active()])
            if sys.platform == 'win32':
                if combobox.get_active():
                    lang = languages.languages[combobox.get_active()]
                    app.win32_put_langenviron(lang)
                else:
                    app.win32_put_langenviron(None)
        self.g_language.connect_after('changed', f)
        hbox.pack_start(self.g_language, False)
        category_vbox.pack_start(hbox)
        l = gtk.Label(_("You have to restart the program for the language change to take effect."))
        l.set_alignment(0.0, 0.5)
        category_vbox.pack_start(l)

        ############
        # Practise #
        ############
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("Practise")))
        box, category_vbox = gu.hig_category_vbox(_("Practise"))
        page_vbox.pack_start(box, False)

        self.g_picky_on_new_question = gu.nCheckButton('config', 'picky_on_new_question', _("_Not allow new question before the old is solved"))
        category_vbox.pack_start(self.g_picky_on_new_question, False)

        self.g_autorepeat_if_wrong = gu.nCheckButton('config', 'auto_repeat_question_if_wrong_answer', _("_Repeat question if the answer was wrong"))
        category_vbox.pack_start(self.g_autorepeat_if_wrong, False)

        self.g_expert_mode = gu.nCheckButton('gui', 
                'expert_mode', _("E_xpert mode"))
        self.g_expert_mode.connect('toggled', self.m_app.reset_exercise)
        category_vbox.pack_start(self.g_expert_mode, False)


        #########
        # sound #
        #########
        if sys.platform == 'win32':
            self.create_win32_sound_page()
        else:
            self.create_linux_sound_page()
        self.show_all()
    def add_gui_for_external_programs(self, page_vbox):
        box, category_vbox = gu.hig_category_vbox(_("Audio players"))
        page_vbox.pack_start(box, False)
        if sys.platform != 'win32':
            format_info = [
                {'id': 'wav',
                 # testfile is a file in lesson-files/share
                 'testfile': 'fifth-small-220.00.wav',
                 'label': _("WAV file player"),
                 # players is a tuple of tuples. The inner tuple has to elements:
                 # '/path/to/player', 'comandline'
                 'players': (('/usr/bin/play', '/usr/bin/play %s'),
                             ('/usr/bin/aplay', '/usr/bin/aplay %s'),
                             ('/usr/bin/esdplay', '/usr/bin/esdplay %s'),
                            ),
                }
            ]
        else:
            format_info = []
        format_info.extend([
            {'id': 'midi',
             'testfile': 'fanfare.midi',
             'label': _("MIDI file player"),
             'players': (('/usr/bin/timidity', '/usr/bin/timidity -idqq %s'),
                         ('/usr/bin/drvmidi', '/usr/bin/drvmidi'),
                         ('/usr/bin/playmidi', '/usr/bin/playmidi'),
                        ),
            },
            {'id': 'mp3',
             'testfile': 'fanfare.mp3',
             'label': _("MP3 file player"),
             'players': (('/usr/bin/mpg123', '/usr/bin/mpg123'),
                         ('/usr/bin/alsaplayer', '/usr/bin/alsaplayer'),
                        ),
            },
            {'id': 'ogg',
             'testfile': 'fanfare.ogg',
             'label': _("OGG file player"),
             'players': (('/usr/bin/ogg123', '/usr/bin/ogg123'),
                         ('/usr/bin/alsaplayer', '/usr/bin/alsaplayer'),
                        ),
            },
        ])
        self.g_player_boxes = {}
        sizegroup = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)
        for format in format_info:
            liststore = gtk.ListStore(gobject.TYPE_STRING)
            for path, cmd in format['players']:
                if os.path.exists(path):
                    liststore.append((cmd,))
            self.g_player_boxes[format['id']] = gtk.ComboBoxEntry(liststore)
            self.g_player_boxes[format['id']].child.set_text(cfg.get_string('sound/%s_player' % format['id']))
            def _changed(widget, formatid):
                self.set_string('sound/%s_player' % formatid,
                                widget.child.get_text())
            self.g_player_boxes[format['id']].connect('changed',
                _changed, format['id'])
            button = gtk.Button(_("Test"))
            button.connect('clicked', self.test_XXX_player,
                           format['id'], format['testfile'])
            box = gu.hig_label_widget(format['label'],
                                      [self.g_player_boxes[format['id']], button],
                                      sizegroup)
            category_vbox.pack_start(box)
    def test_XXX_player(self, w, typeid, testfile):
        osutils.run_external_program(self.g_player_boxes[typeid].child.get_text(),
                 'lesson-files/share', testfile)
    def create_linux_sound_page(self):
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("Sound setup")))
        #############
        # midi setup
        #############
        box, category_vbox = gu.hig_category_vbox(_("Midi setup"))
        page_vbox.pack_start(box)

        self.g_fakesynth_radio = gu.RadioButton(None, _("_No sound"), None)
        category_vbox.pack_start(self.g_fakesynth_radio, False)

        hbox = gu.bHBox(category_vbox, False)
        self.g_device_radio = gu.RadioButton(self.g_fakesynth_radio,
              _("Use _device"), None)
        hbox.pack_start(self.g_device_radio, False)

        liststore = gtk.ListStore(gobject.TYPE_STRING)
        for s in ('/dev/sequencer', '/dev/sequencer2', '/dev/music'):
            liststore.append((s,))
        self.g_device_file = gtk.ComboBoxEntry(liststore)
        self.g_device_file.child.set_text(self.get_string('sound/device_file'))
        self.g_synth_num = gtk.SpinButton(gtk.Adjustment(0, 0, 100, 1, 1),
                             digits=0)
        self.g_synth_num.set_value(self.get_int('sound/synth_number'))
        hbox.pack_start(self.g_device_file, False)
        hbox.pack_start(self.g_synth_num, False)

        # checkbox to enable awe support
        hbox = gtk.HBox()
        category_vbox.pack_start(hbox, False)
        hbox.pack_start(gtk.Label("    "))
        self.g_awe_checkbutton = gtk.CheckButton(_("_My sound card is Sound Blaster AWE32, AWE64 or pnp32"))
        self.g_awe_checkbutton.set_active(self.get_string('sound/card_info') == 'awe')
        if not configureoutput.HAVE_LINUX_AWE_VOICE_H:
            self.g_awe_checkbutton.set_sensitive(False)
        else:
            self.g_awe_checkbutton.set_sensitive(self.get_string("sound/type") == "sequencer-device")
        hbox.pack_start(self.g_awe_checkbutton, False)
        ###
        hbox = gu.bHBox(category_vbox, False)
        self.g_midiplayer_radio = gu.RadioButton(self.g_fakesynth_radio,
             _("Use _external midiplayer"), None)
        hbox.pack_start(self.g_midiplayer_radio, False)

        if self.get_string("sound/type") == "external-midiplayer":
            self.g_midiplayer_radio.set_active(True)
        elif self.get_string("sound/type") == "sequencer-device":
            self.g_device_radio.set_active(True)
        else:
            self.g_fakesynth_radio.set_active(True)

        hbox = gtk.HButtonBox()
        category_vbox.pack_start(hbox)
        gu.bButton(category_vbox, _("_Apply changes and play test sound"), self.on_apply_and_play_test_sound)

        self.g_device_radio.connect('toggled', lambda w: self.g_awe_checkbutton.set_sensitive(w.get_active()))
    def create_win32_sound_page(self):
        page_vbox = gu.hig_dlg_vbox()
        self.g_notebook.append_page(page_vbox, gtk.Label(_("Midi setup")))
        #############
        # midi setup
        #############
        box, category_vbox = gu.hig_category_vbox(_("Sound setup"))
        page_vbox.pack_start(box)
        txt = gtk.Label(_("""Solfege has two ways to play midi files. It is recommended to use Windows multimedia output. An external midiplayer can be useful if your soundcard lacks a hardware synth, in which case you have to use a program like timidity to play the music."""))
        txt.set_line_wrap(1)
        txt.set_justify(gtk.JUSTIFY_FILL)
        txt.set_alignment(0.0, 0.0)
        category_vbox.pack_start(txt, False)

        self.g_fakesynth_radio = gu.RadioButton(None, _("_No sound"), None)
        category_vbox.pack_start(self.g_fakesynth_radio, False)

        hbox = gu.bHBox(category_vbox, False)
        self.g_device_radio = gu.RadioButton(self.g_fakesynth_radio,
              _("_Windows multimedia output:"), None)
        self.g_synth = gtk.combo_box_new_text()
        if winmidi:
            for devname in winmidi.output_devices():
                #FIXME workaround of the bug
                # http://code.google.com/p/solfege/issues/detail?id=12
                if devname is None:
                    self.g_synth.append_text("FIXME bug #12")
                else:
                    self.g_synth.append_text(devname)
        self.g_synth.set_active(self.get_int('sound/synth_number') + 1)
        hbox.pack_start(self.g_device_radio, False)
        hbox.pack_start(self.g_synth, False)

        hbox = gu.bHBox(category_vbox, False)
        self.g_midiplayer_radio = gu.RadioButton(self.g_fakesynth_radio,
             _("Use _external midiplayer"), None)
        hbox.pack_start(self.g_midiplayer_radio, False)

        if self.get_string("sound/type") == "external-midiplayer":
            self.g_midiplayer_radio.set_active(True)
        elif self.get_string("sound/type") == "winsynth":
            self.g_device_radio.set_active(True)
        else:
            self.g_fakesynth_radio.set_active(True)

        gu.bButton(category_vbox, _("_Apply changes and play test sound"), self.on_apply_and_play_test_sound)
    def set_gui_from_config(self):
        if self.get_string("sound/type") == "fake-synth":
            self.g_fakesynth_radio.set_active(True)
        elif self.get_string("sound/type") == "external-midiplayer":
            self.g_midiplayer_radio.set_active(True)
        else:
            assert self.get_string("sound/type") in ("winsynth", "sequencer-device")
            self.g_device_radio.set_active(True)
        return -1
    def apply_and_close(self, w, response):
        if response ==  gtk.RESPONSE_DELETE_EVENT:
            self.set_gui_from_config()
        elif response == gtk.RESPONSE_HELP:
            self.m_app.handle_href("preferences-window.html")
            return
        else:
            if self.on_apply() == -1:
                self.set_gui_from_config()
                return
        self.hide()
    def on_apply_and_play_test_sound(self, *w):
        if self.on_apply() != -1:
            self.set_gui_from_config()
            self.play_midi_test_sound()
    def play_midi_test_sound(self):
        try:
            mpd.play_music(r"""
            \staff\relative c{
              c16 e g c e, g c e g, c e g c4
            }
            \staff{
              c4 e g8 e c4
            }
            """, 130, 0, 100)
        except Exception, e:
            if isinstance(e, osutils.OsUtilsException):
                self.m_app.m_ui.display_exception_message(e)
            else:
                raise
    def on_apply(self, *v):
        """Returns -1 if sound init fails."""
        card_info = ""
        if soundcard.synth:
            soundcard.synth.close()
        if self.g_midiplayer_radio.get_active():
            soundcard.initialise_external_midiplayer(
                  self.g_player_boxes['midi'].child.get_text())
            soundcard.synth.error_report_cb = self.m_app.m_ui.display_error_message
        elif self.g_device_radio.get_active():
            if sys.platform != 'win32' and configureoutput.HAVE_LINUX_AWE_VOICE_H and \
                self.g_awe_checkbutton.get_active():
                card_info = "awe"
            else:
                card_info = ""
            try:
                if sys.platform == 'win32':
                    soundcard.initialise_winsynth(self.g_synth.get_active() - 1)
                else:
                    soundcard.initialise_devicefile(
                        self.g_device_file.child.get_text(),
                        self.g_synth_num.get_value_as_int(),
                        card_info)
            except (soundcard.SoundInitException, OSError, ImportError), e:
                self.m_app.display_sound_init_error_message(e)
                return -1
        else: # no sound
            assert self.g_fakesynth_radio.get_active()
            soundcard.initialise_using_fake_synth(0)
        if self.g_midiplayer_radio.get_active():
            self.set_string("sound/type", "external-midiplayer")
        elif self.g_device_radio.get_active():
            if sys.platform == "win32":
                self.set_string("sound/type", "winsynth")
            else:
                self.set_string("sound/type", "sequencer-device")
        else:
            assert self.g_fakesynth_radio.get_active()
            self.set_string("sound/type", "fake-synth")
        if sys.platform != 'win32':
            self.set_string("sound/device_file", self.g_device_file.child.get_text())
            self.set_string("sound/card_info", card_info)
        if soundcard.synth.m_type_major not in ('Midifile', 'Fake'):
            self.set_int("sound/synth_number", soundcard.synth.m_devnum)
            # we set the spin just in case m_devnum was changed by the
            # soundcard setup code, if it was out of range
            if sys.platform != 'win32':
                self.g_synth_num.set_value(soundcard.synth.m_devnum)
            else:
                self.g_synth.set_active(soundcard.synth.m_devnum + 1)