基于IMX6ULL的智能车载pri

#include "music_win.h" #include <QCoreApplication> #include <QFileInfoList> #include <QDir> #include <QProcess> QProcess * mypro; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { /* 布局初始化 */ musicLayout(); /* 媒体播放器初始化 */ mediaPlayerInit(); /* 扫描歌曲 */ scanSongs(); /* 按钮信号槽连接 */ connect(pushButton[0], SIGNAL(clicked()), this, SLOT(btn_previous_clicked())); connect(pushButton[1], SIGNAL(clicked()), this, SLOT(btn_play_clicked())); connect(pushButton[2], SIGNAL(clicked()), this, SLOT(btn_next_clicked())); /* 媒体信号槽连接 */ connect(musicPlayer, SIGNAL(stateChanged(QMediaPlayer::State)), this, SLOT(mediaPlayerStateChanged(QMediaPlayer::State))); connect(mediaPlaylist, SIGNAL(currentIndexChanged(int)), this, SLOT(mediaPlaylistCurrentIndexChanged(int))); connect(musicPlayer, SIGNAL(durationChanged(qint64)), this, SLOT(musicPlayerDurationChanged(qint64))); connect(musicPlayer, SIGNAL(positionChanged(qint64)), this, SLOT(mediaPlayerPositionChanged(qint64))); /* 列表信号槽连接 */ connect(listWidget, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(listWidgetCliked(QListWidgetItem*))); /* slider信号槽连接 */ connect(durationSlider, SIGNAL(sliderReleased()), this, SLOT(durationSliderReleased())); /* 失去焦点 */ this->setFocus(); exit_button = new QPushButton(this); exit_button->setMinimumSize(50, 50); exit_button->setMaximumSize(50, 50); exit_button->move(760,440); exit_button->setStyleSheet("QPushButton{background:yellow}"); connect(exit_button,&QPushButton::clicked,[=](){ mypro->close(); exit(1);//退出程序 }); } void MainWindow::musicLayout() { /* 设置位置与大小,这里固定为800, 480 */ this->setGeometry(0, 0, 800, 480); QPalette pal; /* 按钮 */ for (int i = 0; i < 7; i++) pushButton[i] = new QPushButton(); /* 标签 */ for (int i = 0; i < 4; i++) label[i] = new QLabel(); for (int i = 0; i < 3; i++) { /* 垂直容器 */ vWidget[i] = new QWidget(); vWidget[i]->setAutoFillBackground(true); /* 垂直布局 */ vBoxLayout[i] = new QVBoxLayout(); } for (int i = 0; i < 4; i++) { /* 水平容器 */ hWidget[i] = new QWidget(); hWidget[i]->setAutoFillBackground(true); /* 水平布局 */ hBoxLayout[i] = new QHBoxLayout(); } /* 播放进度条 */ durationSlider = new QSlider(Qt::Horizontal); durationSlider->setMinimumSize(300, 15); durationSlider->setMaximumHeight(15); durationSlider->setObjectName("durationSlider"); /* 音乐列表 */ listWidget = new QListWidget(); listWidget->setObjectName("listWidget"); listWidget->resize(310, 265); listWidget->setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff); listWidget->setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff); /* 列表遮罩 */ listMask = new QWidget(listWidget); listMask->setMinimumSize(310, 50); listMask->setMinimumHeight(50); listMask->setObjectName("listMask"); listMask->setGeometry(0, listWidget->height() - 50, 310, 50); /* 设置对象名称 */ pushButton[0]->setObjectName("btn_previous"); pushButton[1]->setObjectName("btn_play"); pushButton[2]->setObjectName("btn_next"); pushButton[3]->setObjectName("btn_favorite"); pushButton[4]->setObjectName("btn_mode"); pushButton[5]->setObjectName("btn_menu"); pushButton[6]->setObjectName("btn_volume"); /* 设置按钮属性 */ pushButton[1]->setCheckable(true); pushButton[3]->setCheckable(true); /* H0布局 */ vWidget[0]->setMinimumSize(310, 480); vWidget[0]->setMaximumWidth(310); vWidget[1]->setMinimumSize(320, 480); QSpacerItem *hSpacer0 = new QSpacerItem(70, 480, QSizePolicy::Minimum, QSizePolicy::Maximum); QSpacerItem *hSpacer1 = new QSpacerItem(65, 480, QSizePolicy::Minimum, QSizePolicy::Maximum); QSpacerItem *hSpacer2 = new QSpacerItem(60, 480, QSizePolicy::Minimum, QSizePolicy::Maximum); hBoxLayout[0]->addSpacerItem(hSpacer0); hBoxLayout[0]->addWidget(vWidget[0]); hBoxLayout[0]->addSpacerItem(hSpacer1); hBoxLayout[0]->addWidget(vWidget[1]); hBoxLayout[0]->addSpacerItem(hSpacer2); hBoxLayout[0]->setContentsMargins(0, 0, 0, 0); hWidget[0]->setLayout(hBoxLayout[0]); setCentralWidget(hWidget[0]); /* V0布局 */ listWidget->setMinimumSize(310, 265); hWidget[1]->setMinimumSize(310, 80); hWidget[1]->setMaximumHeight(80); label[0]->setMinimumSize(310, 95); label[0]->setMaximumHeight(95); QSpacerItem *vSpacer0 = new QSpacerItem(310, 10, QSizePolicy::Minimum, QSizePolicy::Maximum); QSpacerItem *vSpacer1 = new QSpacerItem(310, 30, QSizePolicy::Minimum, QSizePolicy::Minimum); vBoxLayout[0]->addWidget(label[0]); vBoxLayout[0]->addWidget(listWidget); vBoxLayout[0]->addSpacerItem(vSpacer0); vBoxLayout[0]->addWidget(hWidget[1]); vBoxLayout[0]->addSpacerItem(vSpacer1); vBoxLayout[0]->setContentsMargins(0, 0, 0, 0); vWidget[0]->setLayout(vBoxLayout[0]); /* H1布局 */ for (int i = 0; i < 3; i++) { pushButton[i]->setMinimumSize(80, 80); } QSpacerItem *hSpacer3 = new QSpacerItem(40, 80, QSizePolicy::Expanding, QSizePolicy::Expanding); QSpacerItem *hSpacer4 = new QSpacerItem(40, 80, QSizePolicy::Expanding, QSizePolicy::Expanding); hBoxLayout[1]->addWidget(pushButton[0]); hBoxLayout[1]->addSpacerItem(hSpacer3); hBoxLayout[1]->addWidget(pushButton[1]); hBoxLayout[1]->addSpacerItem(hSpacer4); hBoxLayout[1]->addWidget(pushButton[2]); hBoxLayout[1]->setContentsMargins(0, 0, 0, 0); hWidget[1]->setLayout(hBoxLayout[1]); /* V1布局 */ QSpacerItem *vSpacer2 = new QSpacerItem(320, 40, QSizePolicy::Minimum, QSizePolicy::Maximum); QSpacerItem *vSpacer3 = new QSpacerItem(320, 20, QSizePolicy::Minimum, QSizePolicy::Maximum); QSpacerItem *vSpacer4 = new QSpacerItem(320, 30, QSizePolicy::Minimum, QSizePolicy::Minimum); label[1]->setMinimumSize(320, 320); QImage Image; Image.load(":/images/cd.png"); QPixmap pixmap = QPixmap::fromImage(Image); int with = 320; int height = 320; QPixmap fitpixmap = pixmap.scaled(with, height, Qt::IgnoreAspectRatio, Qt::SmoothTransformation); label[1]->setPixmap(fitpixmap); label[1]->setAlignment(Qt::AlignCenter); vWidget[2]->setMinimumSize(300, 80); vWidget[2]->setMaximumHeight(80); vBoxLayout[1]->addSpacerItem(vSpacer2); vBoxLayout[1]->addWidget(label[1]); vBoxLayout[1]->addSpacerItem(vSpacer3);