qtmplayer/mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    initMainWindow(); // 初始化界面
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::initMainWindow()
{
    setWindowTitle("音乐播放器");
    ui->song_list_widget->setAttribute(Qt::WA_TranslucentBackground);
    ui->label_artist->setAttribute(Qt::WA_TranslucentBackground);
    ui->label_song_list->setAttribute(Qt::WA_TranslucentBackground);
    ui->label_song_name->setAttribute(Qt::WA_TranslucentBackground);
    ui->label_meta_album->setAttribute(Qt::WA_TranslucentBackground);
    ui->contrl_widget->setAttribute(Qt::WA_TranslucentBackground);
    ui->widget_show->setAttribute(Qt::WA_TranslucentBackground);
    ui->volume_widget->setAttribute(Qt::WA_TranslucentBackground);
    ui->widget_3->setAttribute(Qt::WA_TranslucentBackground);
    ui->time_left_label->setAttribute(Qt::WA_TranslucentBackground);
    ui->time_right_label->setAttribute(Qt::WA_TranslucentBackground);

    ui->time_slider->setStyleSheet("QSlider::groove:horizontal { background-color: white; }"
                                 "QSlider::handle:horizontal { background-color: blue; width: 20px;}");
    ui->volume_slider->setStyleSheet("QSlider::groove:horizontal { background-color: gray; }"
                                 "QSlider::handle:horizontal { background-color: yellow; width: 20px;}");
}