mp3.cpp

mp3 jie mian linux qt

#include <qapplication.h>

#include <qwidget.h>

#include <qpushbutton.h>	//按钮

#include <qfont.h>

#include <qlabel.h>		//标签

#include <qdatetime.h>  	//当前日期与时间

#include <qslider.h>		//滑动框

#include <qlcdnumber.h>		//显示音量大小

#include <qmainwindow.h>
//#include <qscrollview.h>



class MyMainWindow : public QWidget
{
		

	public:

		MyMainWindow(); 
			 	
	
	private:

		QPushButton *b1;      	//播放

		QPushButton *b2;      	//上一首歌

		QPushButton *b3;      	//下一首歌		

		QPushButton *b4; 	//关闭 

		QPushButton *b5;	//暂停



		QLabel *label1;		//显示日期时间
		QLabel *label2;		//音量
		

		QLCDNumber *lcd;

		

		QSlider *slider;	//音量滑动框
		
};

/*
class Mp3Player : public QMainWindow 
{
		Q_OBJECT
	public:
		Mp3Player();
	public:
		void doPlay1();
		void doPlay2();
		void doPlay3();


};

void Mp3Player ::doPlay1()
{
	//Q......  ::play("mp3s/1.mp3");


}


void Mp3Player ::doPlay2()
{
	

}


void Mp3Player ::doPlay3()
{



}

*/


MyMainWindow :: MyMainWindow()
{	

	setGeometry(1,1,500,450);


	//四个按钮 播放/暂停

	b1=new QPushButton("Play",this);

	b1->setGeometry(130,250,100,50);

	b1->setFont( QFont ("Times",18,QFont::Bold ) );  

	//connect(b1,SIGNAL( clicked() ),this,SLOT( doPlay2() );	


	b2=new QPushButton("Next",this);

	b2->setGeometry(380,250,100,50);

	b2->setFont( QFont ("Times",18,QFont::Bold ) );  

	//connect(b2,SIGNAL( clicked() ),this,SLOT( doPlayer3() );	



	b3=new QPushButton("Last",this);

	b3->setGeometry(0,250,100,50);

	b3->setFont( QFont ("Times",18,QFont::Bold ) );  

	//connect(b3,SIGNAL( clicked() ),this,SLOT( doPlayer1() );	



	b4=new QPushButton("close",this);

	b4->setGeometry(400,0,100,50);

	b4->setFont( QFont ("Times",18,QFont::Bold ) ); 

	connect(b4, SIGNAL( clicked() ),qApp,SLOT( quit() ) );



	b5=new QPushButton("Stop",this);

	b5->setGeometry(250,250,100,50);

	b5->setFont( QFont ("Times",18,QFont::Bold ) );  

	//connect(b5,SIGNAL( clicked() ),this,SLOT( );		




	//显示时间与日期。。。。。

	//Create a QDateTime object;

	QDateTime datetime;

	

	//Set the date the currnt date

	datetime.setDate( QDate::currentDate() );

	

	//Set the time to the current time

	datetime.setTime( QTime::currentTime() );	

	

	//use the QDateTime::toString() function to make

	//a string out of the date and time and show it

	//in a QLabel object

	

	label1=new QLabel( datetime.toString(),this );

	label1->setGeometry(0,0,300,50);

	label1->setAlignment(AlignCenter);
	label1->setFont( QFont ("Times",18,QFont::Bold ) );
	                                                                                


	
	//音量
	label2=new QLabel(this);
	label2->setGeometry(50,350,100,50);
	label2->setText("volume");
	label2->setFont( QFont ("Times",18,QFont::Bold ) );



	//滑块调节音量，并显示具体大小

	//第一个参数设置滑动框的最小值，第2设置最大值，第3设置当点击

	//左边或右边的调节标尺时滑块跳动的距离。第四设置滑动框的默认值

	//第5设置滑块方向（水平OR垂直），第6为指向滑块框父部件的指针

	slider=new QSlider( 0,20,1,10,Horizontal,this );	

	slider->setGeometry(200,350,300,50);

	//QSlider::setTickmarks()设置滑动框下面所显示的跳动标记。它们使

	//用户能够更加清晰地看到滑动框的当前值

	slider->setTickmarks(QSlider::Below);



	lcd=new QLCDNumber(2,this);

	lcd->setGeometry(300,400,100,50);

	

	connect(slider,SIGNAL( valueChanged(int) ),

		lcd,SLOT( display(int) ) );



	//connect(slider,SIGNAL( ),  ,SLOT( ) );   //与歌曲挂钩




}




int  main(int argc, char **argv)

{

	//Create an QApplication object.

	QApplication app(argc,argv);

	MyMainWindow w;  //myclass w

	app.setMainWidget(&w);

	w.show();

	return app.exec();

}