[LMMS-devel] Timer Widget

[Rubén Ibarra Pastor]

Here is a timer widget. Minutes, seconds and milliseconds are  in LMMS 0.4.15 
is it ok or you really want the patch to work in git?

 



Rubén Ibarra Pastor


                                          
/*
 * timer_widget.cpp - widget for visualization of ellapsed time
 * Based on visualization widget
 * Uploaded by Ruben Ibarra
 * TODO: Add glow effect
 * Licensed by GPLv2
 */



#ifndef _TIMER_WIDGET
#define _TIMER_WIDGET

#include <QtGui/QWidget>
#include <QtGui/QPixmap>
#include <QtGui/QGraphicsDropShadowEffect>

#include "mixer.h"


class timerWidget : public QWidget
{
        Q_OBJECT
public:
        timerWidget( const QPixmap & _bg, QWidget * _parent);
        virtual ~timerWidget();
        void setActive( bool _active );

protected:
        virtual void paintEvent( QPaintEvent * _pe );
        virtual void mousePressEvent( QMouseEvent * _me );


protected slots:
        void updateAudioBuffer();


private:
        QPixmap s_background;
        QPointF * m_points;
        QString seconds;
        QString minutes;
        QString milliseconds;
        QString tacts;
        QString ticks;
        QString time1,time2,time3;
        QString total;
        QGraphicsDropShadowEffect * dse;
        sampleFrame * m_buffer;
        int mode;

} ;

#endif

/*
 * timer_widget.cpp - widget for visualization of ellapsed time
 * Based on visualization widget
 * Uploaded by Ruben Ibarra
* TODO: Add glow effect and make it look more digital
 * Licensed by GPLv2
 */


#include <QtGui/QMouseEvent>
#include <QtGui/QPainter>

#include "timer_widget.h"
#include "gui_templates.h"
#include "MainWindow.h"
#include "embed.h"
#include "engine.h"
#include "tooltip.h"
#include "song.h"



timerWidget::timerWidget( const QPixmap & _bg, QWidget * _p ) :
	QWidget( _p ),
	s_background( _bg ),
	mode( 0 )
{
	setFixedSize( s_background.width(), s_background.height() );
	setAttribute( Qt::WA_OpaquePaintEvent, true );

	const fpp_t frames = engine::getMixer()->framesPerPeriod();
	m_buffer = new sampleFrame[frames];

	engine::getMixer()->clearAudioBuffer( m_buffer, frames );

	toolTip::add( this, tr( "click to enable/disable visualization of "
							"time" ) );
}




timerWidget::~timerWidget()
{
	delete[] m_buffer;
}




void timerWidget::updateAudioBuffer()
{
	if( !engine::getSong()->isExporting() )
	{
		engine::getMixer()->lock();
		const surroundSampleFrame * c = engine::getMixer()->
							currentReadBuffer();
		const fpp_t fpp = engine::getMixer()->framesPerPeriod();
		memcpy( m_buffer, c, sizeof( surroundSampleFrame ) * fpp );
		engine::getMixer()->unlock();
	}
}




void timerWidget::setActive( bool _active )
{

	if( mode != 2 )
	{
		connect( engine::mainWindow(),
					SIGNAL( periodicUpdate() ),
					this, SLOT( update() ) );
		connect( engine::getMixer(),
					SIGNAL( nextAudioBuffer() ),
				this, SLOT( updateAudioBuffer() ) );
	}
	else
	{
		disconnect( engine::mainWindow(),
					SIGNAL( periodicUpdate() ),
					this, SLOT( update() ) );
		disconnect( engine::getMixer(),
					SIGNAL( nextAudioBuffer() ),
				this, SLOT( updateAudioBuffer() ) );
		// we have to update (remove last waves),
		// because timer doesn't do that anymore
		update();
	}
}




void timerWidget::paintEvent( QPaintEvent * )
{
	QPainter p( this );

	p.drawPixmap( 0, 0, s_background );

	//if( m_active && !engine::getSong()->isExporting() )
	if( (mode == 1) && !engine::getSong()->isExporting() )
	{
		p.setPen( QColor( 64, 224, 255 ) );
		p.setRenderHint( QPainter::Antialiasing );

		// now draw all that stuff
		milliseconds = milliseconds.setNum(engine::getSong()->getMilliseconds()%100);
		seconds = seconds.setNum((engine::getSong()->getMilliseconds()/100)%60);
		minutes = minutes.setNum((engine::getSong()->getMilliseconds()/6000));
		p.setFont( pointSize<16>( p.font() ) );
		if((engine::getSong()->getMilliseconds()/6000) < 10)//Minutes
		  time1 = "0";
		else
		  time1 = "";
                if((engine::getSong()->getMilliseconds()/100)%60 < 10)//Seconds
		  time2 = ":0";
		else
		  time2 = ":";
                if(engine::getSong()->getMilliseconds()%100 < 10)//Milliseconds
		  time3 = ":0";
		else
		  time3 = ":";
		total = minutes + ":" + seconds  + ":" + milliseconds;
		total = time1 + minutes + time2 + seconds + time3 + milliseconds;
		p.drawText( 10, 30,total);
	}
	else if(mode == 2)
	{
		p.setPen( QColor( 64, 224, 255 ) );
		p.setRenderHint( QPainter::Antialiasing );
		tacts = seconds.setNum(engine::getSong()->getTacts());
		ticks = minutes.setNum(engine::getSong()->getTicks());
		milliseconds = milliseconds.setNum(engine::getSong()->getMilliseconds()%100);
		p.setFont( pointSize<16>( p.font() ) );
		if(engine::getSong()->getTacts() < 10)//Tacts
		  time1 = "0";
		else
		  time1 = "";
                if(engine::getSong()->getTicks() < 10)//Ticks
		  time2 = ":0";
		else
		  time2 = ":";
                if(engine::getSong()->getMilliseconds()%100 < 10)//Milliseconds
		  time3 = ":0";
		else
		  time3 = ":";
		total = time1 + tacts + time2 + ticks + time3 + milliseconds;
		p.drawText( 10, 30,total);
	}
	else
	{
		p.setPen( QColor( 192, 192, 192 ) );
		p.setFont( pointSize<7>( p.font() ) );
		p.drawText( 6, height()-5, tr( "Click to enable" ) );
	}
}




void timerWidget::mousePressEvent( QMouseEvent * _me )
{
	if( _me->button() == Qt::LeftButton )
	{
		if(mode == 0)
			setActive( true );
		else if(mode == 2)
			setActive( false);
		mode++;
		mode = mode%3;
	}
}



#include "moc_timer_widget.cxx"



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