呃……反正这篇博客我是本不打算写的，这次的音乐播放器没什么大的变化，主要是在界面上稍微做了些改进，代码是照搬v1.0的，不过这次加了换肤（这个是班门弄斧了些哈），不过话说回来，也是自己辛辛苦苦自己组装的音乐播放器吧，没有窃取别人家的劳动成果，我感觉这个还算的上是一个让我欣慰的原因，一向是剃头挑子-一头热的我，不知道这次能坚持多久，只能说声走一步算一步了。甭废话了，放代码：

widget.h

#include"widget.h"

#include"ui_widget.h"

#include

Widget::Widget(QWidget*parent):

QWidget(parent),

ui(newUi::Widget)

{

ui->setupUi(this);

player=newQMediaPlayer(this);

list=newQMediaPlaylist;

QDirdir("E:/音乐");

foreach(QFileInfoinfo,dir.entryInfoList())

{

if(info.exists())

{

list->addMedia(QUrl(info.absoluteFilePath()));

ui->show->addItem(info.fileName());

}

}

ui->V->setRange(0,100);

list->setCurrentIndex(1);

player->setPlaylist(list);

player->setVolume(50);

connect(ui->V,SIGNAL(valueChanged(int)),player,SLOT(setVolume(int)));

intwidth=this->width();

QToolButton*minButton=newQToolButton(this);

QToolButton*closeButton=newQToolButton(this);

connect(closeButton,SIGNAL(clicked(bool)),this,SLOT(on_closeButton_clicked()));

connect(minButton,SIGNAL(clicked(bool)),this,SLOT(on_minButton_clicked()));

QPixmapminPix=style()->standardPixmap(QStyle::SP_TitleBarUnshadeButton);

QPixmapclosePix=style()->standardPixmap(QStyle::SP_TitleBarCloseButton);

minButton->setIcon(minPix);

closeButton->setIcon(closePix);

minButton->setGeometry(width-46,5,20,20);

closeButton->setGeometry(width-25,5,20,20);

minButton->setToolTip(tr("换肤"));

closeButton->setToolTip(tr("关闭"));

minButton->setStyleSheet("background-color:transparent;");

closeButton->setStyleSheet("background-color:transparent;");

ui->num->setText("已找到"+QString::number(ui->show->count(),10)+"首音乐");

player->setVolume(25);

ui->V->setValue(25);

ui->V->accessibleDescription();

connect(ui->V,SIGNAL(valueChanged(int)),player,SLOT(setVolume(int)));

connect(ui->show,SIGNAL(clicked(QModelIndex)),this,SLOT(toplay(QModelIndex)));

}

Widget::~Widget()

{

deleteui;

}

voidWidget::on_Prvious_clicked()

{

list->previous();

player->play();

ui->show->autoFillBackground();

}

voidWidget::on_Play_clicked()

{

if(ui->Play->text()=="播放")

{

player->play();

ui->Play->setText("暂停");

}

else

{

player->pause();

ui->Play->setText("播放");

}

}

voidWidget::on_Next_clicked()

{

list->next();

player->play();

}

voidWidget::mousePressEvent(QMouseEvent*event)

{

if(event->button()==Qt::LeftButton)

{

mouse_press=true;

move_point=event->pos();//鼠标相对于窗体的位置（或者使用event->globalPos()-this->pos()）

}

}

voidWidget::mouseMoveEvent(QMouseEvent*event)

{

if(mouse_press)//若鼠标左键被按下

{

QPointmove_pos=event->globalPos();//鼠标相对于屏幕的位置

this->move(move_pos-move_point);//移动主窗体位置

}

}

voidWidget::mouseReleaseEvent(QMouseEvent*event)

{

mouse_press=false;//设置鼠标为未被按下

}

voidWidget::on_closeButton_clicked()

{

this->close();

}

voidWidget::on_minButton_clicked()

{

staticinti=0;

i++;

QPalettep;

QPixmap*map;

switch(i%4){

case0:

map=newQPixmap(":/picture/001.jpg");

break;

case1:

map=newQPixmap(":/picture/002.jpg");

break;

case2:

map=newQPixmap(":/picture/003.jpg");

break;

case3:

map=newQPixmap(":/picture/004.jpg");

break;

default:

break;

}

p.setBrush(QPalette::Window,QBrush(*map));

this->setPalette(p);

}

voidWidget::toplay(QModelIndexx)

{

list->setCurrentIndex(x.row());

player->play();

}

main.cpp

#include"widget.h"

#include

intmain(intargc,char*argv[])

{

QApplicationa(argc,argv);

Widgetw;

w.setWindowFlags(Qt::FramelessWindowHint);

w.setWindowTitle("MusicBox");

w.setAutoFillBackground(true);

QPalettep;

QPixmappixmap("E:/照片/壁纸/002.jpg");

p.setBrush(QPalette::Window,QBrush(pixmap));

w.setPalette(p);

QPixmappixmap1(":/picture/MP3.ico");

QIconpicture(pixmap1);

w.setWindowIcon(picture);

w.show();

returna.exec();

}

widget.h

#ifndefWIDGET_H

#defineWIDGET_H

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

namespaceUi{

classWidget;

}

classWidget:publicQWidget

{

Q_OBJECT

public:

explicitWidget(QWidget*parent=0);

voidmouseReleaseEvent(QMouseEvent*event);

voidmouseMoveEvent(QMouseEvent*event);

voidmousePressEvent(QMouseEvent*event);

~Widget();

privateslots:

voidtoplay(QModelIndexx);

voidon_Prvious_clicked();

voidon_Play_clicked();

voidon_Next_clicked();

voidon_minButton_clicked();

voidon_closeButton_clicked();

private:

Ui::Widget*ui;

QMediaPlayer*player;

QMediaPlaylist*list;

QPointmove_point;//移动的距离

boolmouse_press;//鼠标按下

};

#endif//WIDGET_H

​

​

​