/****************************************************************************
**
** Copyright (C) 2002-2006 Frank Hemer <frank@hemer.org>,
**                         Tilo Riemer <riemer@crossvc.com>,
**                         Jose Hernandez <joseh@tesco.net>
**
**
**----------------------------------------------------------------------------
**
**----------------------------------------------------------------------------
**
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*****************************************************************************/

#include "config.h"

#include <qglobal.h>
#include <qtimer.h>
#include <qpixmap.h>
#include "PixmapTimer.h"
#include "pixmapcache.h"
#include "globals.h"



static const unsigned int CPrivXpmTimer_NUM_ANIM_PICS = 4;


struct CPrivXpmTimer
{
	//static const unsigned int NUM_ANIM_PICS = 4;

	QTimer *m_pTimer;
	const QPixmap *m_pIcon[CPrivXpmTimer_NUM_ANIM_PICS];   
	int m_curPic;

	// Counts number of activations.
	unsigned int m_nActive;
};


CPixmapTimer::CPixmapTimer(QObject * parent /*= 0*/, const char * name /*= 0*/)
	: QObject(parent, name)
{
	d = new CPrivXpmTimer;
	d->m_curPic = 0;
	d->m_nActive = 0;

	for (int i=0; i<(int)CPrivXpmTimer_NUM_ANIM_PICS; i++)
		d->m_pIcon[i] = &findEmbeddedPixmap(QString().sprintf("Connect32x16-%02d", i));

	d->m_pTimer = new QTimer(this);
	connect(d->m_pTimer, SIGNAL(timeout()), this, SLOT(slotProgress()));
}


CPixmapTimer::~CPixmapTimer()
{
	// The timer will automagically be deleted by Qt when CPixmapTimer is deleted.
	// The pixmaps will be deleted when the application exits as they are cached
	// in a dictionary and get reused.
	delete d;
}


void CPixmapTimer::slotStart()
{
	(d->m_nActive)++;

	if (!d->m_pTimer->isActive())
		d->m_pTimer->start(PROGRESSINTERVALL);
}


void CPixmapTimer::slotStop()
{
	if (d->m_nActive > 0)
		(d->m_nActive)--;

// 	if (d->m_nActive == 0)// don't need this since looped commands don't call slotStop more than once
//      but might call slotStart several times
	{
		if (d->m_pTimer->isActive())
			d->m_pTimer->stop();

		emit signalTimeout(*d->m_pIcon[d->m_curPic = 0]);
	}
}


void CPixmapTimer::slotProgress()
{
	++(d->m_curPic) %= CPrivXpmTimer_NUM_ANIM_PICS;
	emit signalTimeout(*d->m_pIcon[d->m_curPic]);
}