// Copyright (C) 2003 Dolphin Project.

// 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, version 2.0.

// 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 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/


#include "Config.h"
#include "DSPConfigDlgLLE.h"

BEGIN_EVENT_TABLE(DSPConfigDialogLLE, wxDialog)
	EVT_BUTTON(wxID_OK, DSPConfigDialogLLE::SettingsChanged)
	EVT_CHECKBOX(ID_ENABLE_DTK_MUSIC, DSPConfigDialogLLE::SettingsChanged)
	EVT_CHECKBOX(ID_ENABLE_THROTTLE, DSPConfigDialogLLE::SettingsChanged)
	EVT_CHECKBOX(ID_ENABLE_JIT, DSPConfigDialogLLE::SettingsChanged)
	EVT_CHOICE(ID_BACKEND, DSPConfigDialogLLE::BackendChanged)
	EVT_COMMAND_SCROLL(ID_VOLUME, DSPConfigDialogLLE::VolumeChanged)
END_EVENT_TABLE()

DSPConfigDialogLLE::DSPConfigDialogLLE(wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &position, const wxSize& size, long style)
: wxDialog(parent, id, title, position, size, style)
{
	// Load config settings
	g_Config.Load();

	m_OK = new wxButton(this, wxID_OK, _("OK"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
	
	wxStaticBoxSizer *sbSettings = new wxStaticBoxSizer(wxVERTICAL, this, _("Sound Settings"));
	wxStaticBoxSizer *sbSettingsV = new wxStaticBoxSizer(wxVERTICAL, this, _("Volume"));

	// Create items
	m_buttonEnableDTKMusic = new wxCheckBox(this, ID_ENABLE_DTK_MUSIC, _("Enable DTK Music"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
	m_buttonEnableThrottle = new wxCheckBox(this, ID_ENABLE_THROTTLE, _("Enable Audio Throttle"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
	m_buttonEnableJIT = new wxCheckBox(this, ID_ENABLE_JIT, _("Enable JIT Dynarec"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
	wxStaticText *BackendText = new wxStaticText(this, wxID_ANY, _("Audio Backend"), wxDefaultPosition, wxDefaultSize, 0);
	m_BackendSelection = new wxChoice(this, ID_BACKEND, wxDefaultPosition, wxDefaultSize, wxArrayBackends, 0, wxDefaultValidator, wxEmptyString);

	m_volumeSlider = new wxSlider(this, ID_VOLUME, ac_Config.m_Volume, 1, 100, wxDefaultPosition, wxDefaultSize, wxSL_VERTICAL|wxSL_INVERSE);
	m_volumeSlider->Enable(SupportsVolumeChanges(ac_Config.sBackend));
	m_volumeText = new wxStaticText(this, wxID_ANY, wxString::Format(_("%d %%"), ac_Config.m_Volume), wxDefaultPosition, wxDefaultSize, 0);

	// Update values
	m_buttonEnableDTKMusic->SetValue(ac_Config.m_EnableDTKMusic ? true : false);
	m_buttonEnableThrottle->SetValue(ac_Config.m_EnableThrottle ? true : false);
	m_buttonEnableJIT->SetValue(ac_Config.m_EnableJIT ? true : false);

	// Add tooltips
	m_buttonEnableDTKMusic->SetToolTip(_("This is used to play music tracks, like BGM."));
	m_buttonEnableThrottle->SetToolTip(_("This is used to control game speed by sound throttle.\nDisabling this could cause abnormal game speed, such as too fast.\nBut sometimes enabling this could cause constant noise.\n\nKeyboard Shortcut <TAB>:  Hold down to instantly disable Throttle."));
	m_buttonEnableJIT->SetToolTip(_("Enables dynamic recompilation of DSP code.\nChanging this will have no effect while the emulator is running!"));
	m_BackendSelection->SetToolTip(_("Changing this will have no effect while the emulator is running!"));

	// Create sizer and add items to dialog
	wxBoxSizer *sMain = new wxBoxSizer(wxVERTICAL);
	wxBoxSizer *sSettings = new wxBoxSizer(wxHORIZONTAL);
	wxBoxSizer *sBackend = new wxBoxSizer(wxHORIZONTAL);
 	wxBoxSizer *sButtons = new wxBoxSizer(wxHORIZONTAL);

	sbSettings->Add(m_buttonEnableDTKMusic, 0, wxALL, 5);
	sbSettings->Add(m_buttonEnableThrottle, 0, wxALL, 5);
	sbSettings->Add(m_buttonEnableJIT, 0, wxALL, 5);

	sBackend->Add(BackendText, 0, wxALIGN_CENTER|wxALL, 5);
	sBackend->Add(m_BackendSelection, 0, wxALL, 1);
	sbSettings->Add(sBackend, 0, wxALL, 2);

	sbSettingsV->Add(m_volumeSlider, 1, wxLEFT|wxRIGHT|wxALIGN_CENTER, 6);
	sbSettingsV->Add(m_volumeText, 0, wxALL|wxALIGN_LEFT, 4);

	sSettings->Add(sbSettings, 0, wxALL|wxEXPAND, 4);
	sSettings->Add(sbSettingsV, 0, wxALL|wxEXPAND, 4);
	sMain->Add(sSettings, 0, wxALL|wxEXPAND, 4);

	sButtons->AddStretchSpacer();
	sButtons->Add(m_OK, 0, wxALL, 1);
	sMain->Add(sButtons, 0, wxALL|wxEXPAND, 4);
	SetSizerAndFit(sMain);

	// Center window
	CenterOnParent();
}

// Add audio output options
void DSPConfigDialogLLE::AddBackend(const char* backend)
{
	// Update value
    m_BackendSelection->Append(wxString::FromAscii(backend));

#ifdef __APPLE__
	int num = m_BackendSelection->FindString(wxString::FromAscii(ac_Config.sBackend));
#else
	int num = m_BackendSelection->FindString(wxString::FromAscii(ac_Config.sBackend.c_str()));
#endif
	m_BackendSelection->SetSelection(num);
}

void DSPConfigDialogLLE::ClearBackends()
{
	m_BackendSelection->Clear();
}

DSPConfigDialogLLE::~DSPConfigDialogLLE()
{
}

void DSPConfigDialogLLE::VolumeChanged(wxScrollEvent& WXUNUSED(event))
{
	ac_Config.m_Volume = m_volumeSlider->GetValue();
	ac_Config.Update();

	m_volumeText->SetLabel(wxString::Format(wxT("%d %%"), m_volumeSlider->GetValue()));
}

void DSPConfigDialogLLE::SettingsChanged(wxCommandEvent& event)
{
	ac_Config.m_EnableDTKMusic = m_buttonEnableDTKMusic->GetValue();
	ac_Config.m_EnableThrottle = m_buttonEnableThrottle->GetValue();
	ac_Config.m_EnableJIT = m_buttonEnableJIT->GetValue();

#ifdef __APPLE__
	strncpy(ac_Config.sBackend, m_BackendSelection->GetStringSelection().mb_str(), 128);
#else
	ac_Config.sBackend = m_BackendSelection->GetStringSelection().mb_str();
#endif
	ac_Config.Update();
	g_Config.Save();
	
	if (event.GetId() == wxID_OK)
		EndModal(wxID_OK);
}

bool DSPConfigDialogLLE::SupportsVolumeChanges(std::string backend)
{
	//FIXME: this one should ask the backend whether it supports it.
	//       but getting the backend from string etc. is probably
	//       too much just to enable/disable a stupid slider...
	return (backend == BACKEND_DIRECTSOUND ||
			backend == BACKEND_COREAUDIO ||
			backend == BACKEND_OPENAL ||
			backend == BACKEND_XAUDIO2 ||
			backend == BACKEND_PULSEAUDIO);
}

void DSPConfigDialogLLE::BackendChanged(wxCommandEvent& event)
{
	m_volumeSlider->Enable(SupportsVolumeChanges(std::string(m_BackendSelection->GetStringSelection().mb_str())));
}