/******************************************************************************\
 * Copyright (c) 2004-2006
 *
 * Author(s):
 *	Volker Fischer
 *
 ******************************************************************************
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later 
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT 
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
\******************************************************************************/

#include "llconclientdlg.h"


/* Implementation *************************************************************/
CLlconClientDlg::CLlconClientDlg ( CClient* pNCliP, QWidget* parent,
	const char* name, bool modal, WFlags f) : pClient ( pNCliP ),
	CLlconClientDlgBase ( parent, name, modal, f ),
	ClientSettingsDlg ( pNCliP, 0, 0, FALSE, Qt::WStyle_MinMax )
{
	/* add help text to controls */
	QString strInpLevH = tr("<b>Input level meter:</b> Shows the level of the "
		"input audio signal of the sound card. The level is in dB. Overload "
		"should be avoided.");
	QWhatsThis::add(TextLabelInputLevel, strInpLevH);
	QWhatsThis::add(ProgressBarInputLevelL, strInpLevH);
	QWhatsThis::add(ProgressBarInputLevelR, strInpLevH);

	QWhatsThis::add(PushButtonConnect, tr("<b>Connect / Disconnect Button:"
		"</b> Push this button to connect the server. A valid IP address has "
		"to be specified before. If the client is connected, pressing this "
		"button will disconnect the connection."));

	QWhatsThis::add(TextLabelNameVersion, tr("<b>Version:</b> Shows the "
		"current version of the software."));

	QWhatsThis::add(TextLabelStatus, tr("<b>Status Bar:</b> In the status bar "
		"different messages are displayed. E.g., if an error ocurred or the "
		"status of the connection is shown."));

	QString strServAddrH = tr("<b>Server Address:</b> In this edit control, "
		"the IP address of the server can be set. If an invalid address was "
		"chosen, an error message is shown in the status bar.");
	QWhatsThis::add(TextLabelServerAddr, strServAddrH);
	QWhatsThis::add(LineEditServerAddr, strServAddrH);

	/* set text for version and application name */
	TextLabelNameVersion->
		setText(QString(APP_NAME) + tr(" client ") + QString(VERSION));

	/* init server address line edit */
	LineEditServerAddr->setText ( pClient->strIPAddress.c_str () );

	/* init status label */
	OnTimerStatus ();

	/* init connection button text */
	PushButtonConnect->setText ( CON_BUT_CONNECTTEXT );

	/* init input level meter bars */
	ProgressBarInputLevelL->setTotalSteps ( NUM_STEPS_INP_LEV_METER );
	ProgressBarInputLevelL->setProgress ( 0 );
	ProgressBarInputLevelR->setTotalSteps ( NUM_STEPS_INP_LEV_METER );
	ProgressBarInputLevelR->setProgress ( 0 );


	/* init slider controls --- */
	/* audio in fader */
	SliderAudInFader->setRange(0, AUD_FADER_IN_MAX);
	const int iCurAudInFader = pClient->GetAudioInFader();
	SliderAudInFader->setValue(iCurAudInFader);
	SliderAudInFader->setTickInterval(AUD_FADER_IN_MAX / 9);

	/* audio reverberation */
	SliderAudReverb->setRange(0, AUD_REVERB_MAX);
	const int iCurAudReverb = pClient->GetReverbLevel();
	SliderAudReverb->setValue ( AUD_REVERB_MAX - iCurAudReverb );
	SliderAudReverb->setTickInterval(AUD_REVERB_MAX / 9);


	/* set radio buttons --- */
	/* reverb channel */
	if (pClient->IsReverbOnLeftChan())
		RadioButtonRevSelL->setChecked(true);
	else
		RadioButtonRevSelR->setChecked(true);

	/* Settings menu  ------------------------------------------------------- */
	pSettingsMenu = new QPopupMenu ( this );
	CHECK_PTR ( pSettingsMenu );

	pSettingsMenu->insertItem ( tr ( "&General Settings..." ), this,
		SLOT ( OnOpenGeneralSettings() ) );


	/* Main menu bar -------------------------------------------------------- */
	pMenu = new QMenuBar ( this );
	CHECK_PTR ( pMenu );

	pMenu->insertItem ( tr ( "&Settings" ), pSettingsMenu );
	pMenu->insertItem ( tr ( "&?"), new CLlconHelpMenu ( this ) );
	pMenu->setSeparator ( QMenuBar::InWindowsStyle );

	/* Now tell the layout about the menu */
	CLlconClientDlgBaseLayout->setMenuBar ( pMenu );


	/* connections ---------------------------------------------------------- */
	/* push-buttons */
    QObject::connect(PushButtonConnect, SIGNAL(clicked()),
		this, SLOT(OnConnectDisconBut()));

	/* timers */
	QObject::connect(&TimerSigMet, SIGNAL(timeout()),
		this, SLOT(OnTimerSigMet()));
	QObject::connect(&TimerStatus, SIGNAL(timeout()),
		this, SLOT(OnTimerStatus()));

	/* sliders */
	QObject::connect(SliderAudInFader, SIGNAL(valueChanged(int)),
		this, SLOT(OnSliderAudInFader(int)));
	QObject::connect(SliderAudReverb, SIGNAL(valueChanged(int)),
		this, SLOT(OnSliderAudReverb(int)));

	/* radio buttons */
	QObject::connect(RadioButtonRevSelL, SIGNAL(clicked()),
		this, SLOT(OnRevSelL()));
	QObject::connect(RadioButtonRevSelR, SIGNAL(clicked()),
		this, SLOT(OnRevSelR()));


	/* timers --------------------------------------------------------------- */
	/* start timer for status bar */
	TimerStatus.start(STATUSBAR_UPDATE_TIME);
}

CLlconClientDlg::~CLlconClientDlg()
{
	/* if connected, terminate connection */
	if (pClient->IsRunning())
	{
		pClient->Stop();
	}
}

void CLlconClientDlg::closeEvent ( QCloseEvent * Event )
{
	// store IP address
	pClient->strIPAddress = LineEditServerAddr->text().latin1();

	// default implementation of this event handler routine
	Event->accept();
}

void CLlconClientDlg::OnConnectDisconBut ()
{
	/* start/stop client, set button text */
	if ( pClient->IsRunning () )
	{
		pClient->Stop ();
		PushButtonConnect->setText ( CON_BUT_CONNECTTEXT );

		/* stop timer for level meter bars and reset them */
		TimerSigMet.stop ();
		ProgressBarInputLevelL->setProgress ( 0 );
		ProgressBarInputLevelR->setProgress ( 0 );

		/* immediately update status bar */
		OnTimerStatus ();
	}
	else
	{
		/* set address and check if address is valid */
		if ( pClient->SetServerAddr ( LineEditServerAddr->text () ) )
		{
#if ( QT_VERSION > 300 )
			pClient->start ( QThread::TimeCriticalPriority );
#else
			pClient->start ();
#endif
			PushButtonConnect->setText ( CON_BUT_DISCONNECTTEXT );

			/* start timer for level meter bar */
			TimerSigMet.start ( LEVELMETER_UPDATE_TIME );
		}
		else
		{
			/* Restart timer to ensure that the text is visible at
			   least the time for one complete interval */
			TimerStatus.changeInterval ( STATUSBAR_UPDATE_TIME );

			/* show the error in the status bar */
			TextLabelStatus->setText ( tr ( "invalid address" ) );
		}
	}
}

void CLlconClientDlg::OnOpenGeneralSettings()
{
	// open general settings dialog
	ClientSettingsDlg.show();
}

void CLlconClientDlg::OnTimerSigMet ()
{
	/* get current input levels */
	double dCurSigLevelL = pClient->MicLevelL ();
	double dCurSigLevelR = pClient->MicLevelR ();

	/* linear transformation of the input level range to the progress-bar
	   range */
	dCurSigLevelL -= LOW_BOUND_SIG_METER;
	dCurSigLevelL *= NUM_STEPS_INP_LEV_METER /
		( UPPER_BOUND_SIG_METER - LOW_BOUND_SIG_METER );

	// lower bound the signal
	if ( dCurSigLevelL < 0 )
	{
		dCurSigLevelL = 0;
	}

	dCurSigLevelR -= LOW_BOUND_SIG_METER;
	dCurSigLevelR *= NUM_STEPS_INP_LEV_METER /
		( UPPER_BOUND_SIG_METER - LOW_BOUND_SIG_METER );

	// lower bound the signal
	if ( dCurSigLevelR < 0 )
	{
		dCurSigLevelR = 0;
	}

	/* show current level */
	ProgressBarInputLevelL->setProgress ( (int) ceil ( dCurSigLevelL ) );
	ProgressBarInputLevelR->setProgress ( (int) ceil ( dCurSigLevelR ) );
}

void CLlconClientDlg::UpdateDisplay()
{
	/* show connection status in status bar */
	if ( pClient->IsConnected () && pClient->IsRunning () )
	{
		TextLabelStatus->setText ( tr ( "connected" ) );
	}
	else
	{
		TextLabelStatus->setText ( tr ( "disconnected" ) );
	}
}

void CLlconClientDlg::customEvent ( QCustomEvent* Event )
{
	if ( Event->type() == QEvent::User + 11 )
	{
		const int iMessType = ( (CLlconEvent*) Event ) ->iMessType;
		const int iStatus = ( (CLlconEvent*) Event ) ->iStatus;

		switch ( iMessType )
		{
		case MS_SOUND_IN:
		case MS_SOUND_OUT:
		case MS_JIT_BUF_PUT:
		case MS_JIT_BUF_GET:

			// show overall status -> if any LED goes red, this LED will go red
			CLEDOverallStatus->SetLight ( iStatus );
			break;

		case MS_RESET_ALL:
			CLEDOverallStatus->Reset();
			break;
		}

		// update general settings dialog, too
		ClientSettingsDlg.SetStatus ( iMessType, iStatus );
	}
}