音量滑块显示逻辑修改

mainwindow.cpp

@@ -2,8 +2,10 @@
 #include "ui_mainwindow.h"
 #include <pthread.h>
 
-int mplayer_pid;
+int mplayer_pid; // 子进程号
-pthread_t t1,t2; //
+pthread_t t1,t2; // 线程
+char current_song_path_name[128] = ""; // 当前歌曲路径
+int currentVolume = 20; // 当前音量 10
 
 void *getTimerThreadFunc(void *arg); // 发送获取当前时间的 mplayer 命令
 void *readPipeMSG(void *arg); // 获取当前时间的线程
@@ -13,6 +15,15 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+
+
+    QSize windowSize = QSize(geometry().width(), geometry().height());
+    // 设置背景图片
+    setAutoFillBackground(true);
+    QPalette pal = this->palette();
+    pal.setBrush(backgroundRole(),QPixmap(":/img/background1").scaled(windowSize, Qt::KeepAspectRatio));
+    setPalette(pal);
+
     initMainWindow(); // 初始化主界面
     mplayerInit(); // 初始化 mplayer
     kill(mplayer_pid,SIGSTOP);
@@ -21,8 +32,10 @@ MainWindow::MainWindow(QWidget *parent)
 
     // 捕获当前时间信号
     connect(this, SIGNAL(currentTimeSignal(int)), this, SLOT(setCurrentTimeLabel(int)));
-    // 建立滑块修改信号通讯
+    // 建立歌曲进度滑块修改信号通讯
     connect(this, SIGNAL(currentProgressSignal(int)), this, SLOT(setCurrentSlider(int)));
+    // 建立音量大小滑块信号通讯
+    //    connect(this, SIGNAL(currentVolumeSignal(int)), this, SLOT(setVolumeSlider(int)));
 }
 
 MainWindow::~MainWindow()
@@ -36,8 +49,10 @@ void MainWindow::initMainWindow()
 {
     // 设置主窗体属性
     setWindowTitle("音乐播放器");
+    setFixedSize(1055,750);
     setWindowIcon(QIcon(":/icon/button"));
 
+
     // 设置子组件背景透明
     ui->song_list_widget->setAttribute(Qt::WA_TranslucentBackground);
     ui->label_artist->setAttribute(Qt::WA_TranslucentBackground);
@@ -52,9 +67,11 @@ void MainWindow::initMainWindow()
     ui->time_right_label->setAttribute(Qt::WA_TranslucentBackground);
     ui->time_widget->setAttribute(Qt::WA_TranslucentBackground);
 
+    // 设置按钮属性
+
     // 设置滑块属性
-    ui->time_slider->setStyleSheet("QSlider::groove:horizontal { background-color: white; }"
+    ui->time_slider->setStyleSheet("QSlider::groove:horizontal { background-color: gray; }"
-                                   "QSlider::handle:horizontal { background-color: blue; width: 20px;}");
+                                   "QSlider::handle:horizontal { background-color: yellow; width: 20px;}");
     ui->volume_slider->setStyleSheet("QSlider::groove:horizontal { background-color: gray; }"
                                      "QSlider::handle:horizontal { background-color: yellow; width: 20px;}");
     ui->volume_slider->setMinimum(0); // 最小音量 0
@@ -85,7 +102,7 @@ void MainWindow::mplayerInit()
         dup2(fd[1], 1);
         // 使用 exec 启动 mplayer
         //        execlp("mplayer","mplayer","-idle","-slave","-quiet","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
-        execlp("/usr/bin/mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
+        execlp("/usr/bin/mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","/home/flykhan/qtmplayer/song/Diamonds.mp3",NULL);
         _exit(-1); // 异常退出
     }
     else if(pid>0) // 父进程
@@ -95,6 +112,9 @@ void MainWindow::mplayerInit()
         pthread_create(&t1,NULL,getTimerThreadFunc,this);
         pthread_create(&t2,NULL,readPipeMSG,this);
 
+        volume_control(currentVolume, 1); // 初始音量设置为 currentVolume->50
+        setVolumeSlider(currentVolume); // 设置音量滑块初始位置
+
         //        pthread_detach(t1);
         //        pthread_detach(t2);
 
@@ -152,6 +172,7 @@ void MainWindow::playNextSong()
     //    int len = sprintf(changeSongBuf, "loadfile ./song/%s\n", vectorSong[index].c_str());
     qDebug() << changeSongBuf << endl; // 控制台打印下一首歌的名字
     //    write(this->fifo_fd, changeSongBuf.toUtf8().toStdString().c_str(),changeSongBuf.toUtf8().toStdString().size());
+    ui->song_list_widget->setCurrentRow(index);
     write(this->fifo_fd, changeSongBuf, len); // 将获取的下一首歌曲名写入到有名管道中
 }
 
@@ -166,6 +187,7 @@ void MainWindow::playLastSong()
     //    int len = sprintf(changeSongBuf, "loadfile ./song/%s\n", vectorSong[index].c_str());
     qDebug() << changeSongBuf << endl; // 控制台打印下一首歌的名字
     //    write(this->fifo_fd, changeSongBuf.toUtf8().toStdString().c_str(),changeSongBuf.toUtf8().toStdString().size());
+    ui->song_list_widget->setCurrentRow(index);
     write(this->fifo_fd, changeSongBuf, len); // 将获取的下一首歌曲名写入到有名管道中
 }
 
@@ -186,6 +208,12 @@ void MainWindow::setCurrentSlider(int currentProgress)
     ui->time_slider->setValue(currentProgress);
 }
 
+void MainWindow::setVolumeSlider(int currentVolume)
+{
+    // 设置音量滑动条状态
+    ui->volume_slider->setValue(currentVolume);
+}
+
 void *getTimerThreadFunc(void *arg)
 {
     MainWindow *p = (MainWindow *)arg;
@@ -195,25 +223,25 @@ void *getTimerThreadFunc(void *arg)
         // 发送获取的当前时间的命令
         // 发送 get_time_pos 命令到管道中
         write(p->fifo_fd, "get_time_pos\n", strlen("get_time_pos\n"));
-//        usleep(500*1000); // 休眠 0.5 秒
+        usleep(100*1000); // 休眠 0.5 秒
 
         // 发送获取当前歌曲进度的命令
         write(p->fifo_fd,"get_percent_pos\n",strlen("get_percent_pos\n"));
-        usleep(500*1000); // 休眠 0.5 秒
+        usleep(100*1000); // 休眠 0.5 秒
 
-//        // 发送获取的当前歌曲元数据信息的命令
+        //        // 发送获取的当前歌曲元数据信息的命令
-//        // 发送获取当前歌曲长度的命令 ANS_LENGTH
+        //        // 发送获取当前歌曲长度的命令 ANS_LENGTH
-//        write(p->fifo_fd, "get_time_length\n", strlen("get_time_length\n"));
+        //        write(p->fifo_fd, "get_time_length\n", strlen("get_time_length\n"));
-//        usleep(125*1000);
+        //        usleep(125*1000);
-//        // 发送获取当前歌曲名的命令 ANS_META_TITLE
+        //        // 发送获取当前歌曲名的命令 ANS_META_TITLE
-//        write(p->fifo_fd, "get_file_name\n", strlen("get_file_name\n"));
+        //        write(p->fifo_fd, "get_file_name\n", strlen("get_file_name\n"));
-//        usleep(125*1000);
+        //        usleep(125*1000);
-//        // 发送获取当前歌曲歌手的命令 ANS_META_ARTIST
+        //        // 发送获取当前歌曲歌手的命令 ANS_META_ARTIST
-//        write(p->fifo_fd, "get_meta_artist\n", strlen("get_meta_artist\n"));
+        //        write(p->fifo_fd, "get_meta_artist\n", strlen("get_meta_artist\n"));
-//        usleep(125*1000);
+        //        usleep(125*1000);
-//        // 发送获取当前歌曲专辑的命令 ANS_META_ALBU
+        //        // 发送获取当前歌曲专辑的命令 ANS_META_ALBU
-//        write(p->fifo_fd, "get_meta_album\n", strlen("get_meta_album\n"));
+        //        write(p->fifo_fd, "get_meta_album\n", strlen("get_meta_album\n"));
-//        usleep(125*1000);
+        //        usleep(125*1000);
     }
 }
 
@@ -246,14 +274,14 @@ void *readPipeMSG(void *arg)
                 emit p->currentProgressSignal(currentProgress);
             }
 
-//            // 如果消息是 "当前歌曲元数据信息"
+            //            // 如果消息是 "当前歌曲元数据信息"
-//            else if(strncmp(buf,"ANS_LENGTH", strlen("ANS_LENGTH")) == 0)
+            //            else if(strncmp(buf,"ANS_LENGTH", strlen("ANS_LENGTH")) == 0)
-//            {
+            //            {
-//                int currentProgress = 0;
+            //                int currentProgress = 0;
-//                sscanf(buf, "ANS_LENGTH=%d", &currentProgress);
+            //                sscanf(buf, "ANS_LENGTH=%d", &currentProgress);
-//                // 给 UI 发送进度信号
+            //                // 给 UI 发送进度信号
-//                emit p->currentProgressSignal(currentProgress);
+            //                emit p->currentProgressSignal(currentProgress);
-//            }
+            //            }
         }
     }
 }
@@ -267,20 +295,20 @@ void MainWindow::setSongList()
         strList.append(QString::fromStdString(*it));
     }
     ui->song_list_widget->addItems(strList);
-//    ui->song_list_widget->setCurrentRow(2);
+    //    ui->song_list_widget->setCurrentRow(2);
 }
 
 void MainWindow::on_play_btn_clicked()
 {
     if(play_btn_flag == 0)
     {
-        ui->play_btn->setIcon(QIcon(":/icon/button_play"));
+        ui->play_btn->setIcon(QIcon(":/icon2/pause"));
         kill(mplayer_pid,SIGCONT);
         play_btn_flag = 1;
     }
     else if (play_btn_flag == 1)
     {
-        ui->play_btn->setIcon(QIcon(":/icon/button"));
+        ui->play_btn->setIcon(QIcon(":/icon2/play"));
         kill(mplayer_pid,SIGSTOP);
         play_btn_flag = 0;
     }
@@ -301,9 +329,23 @@ void MainWindow::player_rewind_or_forward(int seconds)
 {
     char changeSongBuf[128] = "";
     int len = sprintf(changeSongBuf, "seek %d\n", seconds); // 快进快退 seconds 秒 (seconds 为正->进，为负->退)
-    write(this->fifo_fd, changeSongBuf, len); // 将获取的下一首歌曲名写入到有名管道中
+    write(this->fifo_fd, changeSongBuf, len); // 将快进快退指令写入到有名管道中
 }
 
+void MainWindow::volume_control(int value, int abs)
+{
+    char changeSongBuf[128] = "";
+    // 音量调整到 value 大小(-数减+数加)， abs 为 0 时在当前音量上加减一个值，abs 不为 0 时将当前音量设置为 value 大小
+    int len = sprintf(changeSongBuf, "volume %d %d\n", value, abs);
+    write(this->fifo_fd, changeSongBuf, len); // 将音量控制指令写入到有名管道中
+}
+
+void MainWindow::volume_mute_switch(int mute_arg)
+{
+    char changeSongBuf[128] = "";
+    int len = sprintf(changeSongBuf, "mute %d\n", mute_arg);   // mute_arg 静音开关参数 (1->静音，0->取消静音)
+    write(this->fifo_fd, changeSongBuf, len); // 将静音控制指令写入到有名管道中
+}
 
 void MainWindow::on_last_btn_clicked()
 {
@@ -314,3 +356,40 @@ void MainWindow::on_next_btn_clicked()
 {
     player_rewind_or_forward(10); // 快退 10 秒
 }
+
+void MainWindow::on_mute_btn_clicked()
+{
+    if(mute_flag == 0) // 没静音则按下后设置静音
+    {
+        ui->mute_btn->setIcon(QIcon(":/icon2/sound-on"));
+        //        volume_mute_switch(1);
+        //        mute_flag = 1;
+        volume_mute_switch(++mute_flag);
+    }
+    else if (mute_flag == 1) // 已静音则按下后取消静音
+    {
+        ui->mute_btn->setIcon(QIcon(":/icon2/sound-off"));
+        volume_mute_switch(--mute_flag);
+    }
+}
+
+void MainWindow::on_volume_down_btn_clicked()
+{
+    if(currentVolume-2 >= 0)
+    {
+        currentVolume -= 2;
+        volume_control(currentVolume, 1); // 减 10 音量
+        setVolumeSlider(currentVolume); // 设置音量滑块位置
+    }
+}
+
+void MainWindow::on_volume_up_btn_clicked()
+{
+    if(currentVolume+2 <= 100)
+    {
+        currentVolume += 2;
+        volume_control(currentVolume, 1); // 加 10 音量
+        //    emit this->currentVolumeSignal(currentVolume);
+        setVolumeSlider(currentVolume); // 设置音量滑块位置
+    }
+}

mainwindow.h

@@ -33,6 +33,7 @@ public:
     vector<string> vectorSong; // 歌曲名动态数组
 
     int play_btn_flag = 0; // play 按钮点击标识
+    int mute_flag = 0; // 静音状态标识
 
 public:
     MainWindow(QWidget *parent = nullptr);
@@ -47,13 +48,17 @@ public:
 public slots:
     void playNextSong(); // 切换歌曲槽函数I
     void playLastSong();
-    void player_rewind_or_forward(int seconds)； // 快进快退函数
+    void player_rewind_or_forward(int seconds); // 快进快退函数
+    void volume_control(int value, int abs); // 音量设置函数
+    void volume_mute_switch(int mute_arg); // 静音切换函数
     void setCurrentTimeLabel(int time); // 设置当前时间标签槽函数
     void setCurrentSlider(int currentProgress); // 设置当前进度条
+    void setVolumeSlider(int currentVolume); // 设置当前音量条
 
 signals:
     void currentTimeSignal(int time); // 当前时间信号
     void currentProgressSignal(int currentProgress); // 当前进度信号
+    void currentVolumeSignal(int currentVolume); // 当前音量信号
 
 private slots:
     void on_play_btn_clicked();
@@ -62,6 +67,16 @@ private slots:
 
     void on_front_btn_clicked();
 
+    void on_last_btn_clicked();
+
+    void on_next_btn_clicked();
+
+    void on_mute_btn_clicked();
+
+    void on_volume_down_btn_clicked();
+
+    void on_volume_up_btn_clicked();
+
 private:
     Ui::MainWindow *ui;
 };

mainwindow.ui

@@ -14,7 +14,7 @@
    <string>MainWindow</string>
   </property>
   <property name="styleSheet">
-   <string notr="true">background-image: url(:/img/background5);</string>
+   <string notr="true">background-color: rgb(136, 138, 133);</string>
   </property>
   <widget class="QWidget" name="centralwidget">
    <widget class="QWidget" name="widget_show" native="true">
@@ -133,12 +133,15 @@ color: rgb(255, 255, 0);</string>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="QToolButton" name="back_btn">
+       <property name="styleSheet">
+        <string notr="true">border: none;</string>
+       </property>
        <property name="text">
         <string>...</string>
        </property>
        <property name="icon">
         <iconset resource="res.qrc">
-         <normaloff>:/icon/back</normaloff>:/icon/back</iconset>
+         <normaloff>:/icon2/play-previous</normaloff>:/icon2/play-previous</iconset>
        </property>
        <property name="iconSize">
         <size>
@@ -150,12 +153,15 @@ color: rgb(255, 255, 0);</string>
      </item>
      <item>
       <widget class="QToolButton" name="last_btn">
+       <property name="styleSheet">
+        <string notr="true">border: none;</string>
+       </property>
        <property name="text">
         <string>...</string>
        </property>
        <property name="icon">
         <iconset resource="res.qrc">
-         <normaloff>:/icon/last</normaloff>:/icon/last</iconset>
+         <normaloff>:/icon2/rewind-back</normaloff>:/icon2/rewind-back</iconset>
        </property>
        <property name="iconSize">
         <size>
@@ -167,12 +173,15 @@ color: rgb(255, 255, 0);</string>
      </item>
      <item>
       <widget class="QToolButton" name="play_btn">
+       <property name="styleSheet">
+        <string notr="true">border: none;</string>
+       </property>
        <property name="text">
         <string>...</string>
        </property>
        <property name="icon">
         <iconset resource="res.qrc">
-         <normaloff>:/icon/button</normaloff>:/icon/button</iconset>
+         <normaloff>:/icon2/play</normaloff>:/icon2/play</iconset>
        </property>
        <property name="iconSize">
         <size>
@@ -184,12 +193,15 @@ color: rgb(255, 255, 0);</string>
      </item>
      <item>
       <widget class="QToolButton" name="next_btn">
+       <property name="styleSheet">
+        <string notr="true">border: none;</string>
+       </property>
        <property name="text">
         <string>...</string>
        </property>
        <property name="icon">
         <iconset resource="res.qrc">
-         <normaloff>:/icon/next</normaloff>:/icon/next</iconset>
+         <normaloff>:/icon2/rewind-forward</normaloff>:/icon2/rewind-forward</iconset>
        </property>
        <property name="iconSize">
         <size>
@@ -201,12 +213,15 @@ color: rgb(255, 255, 0);</string>
      </item>
      <item>
       <widget class="QToolButton" name="front_btn">
+       <property name="styleSheet">
+        <string notr="true">border: none;</string>
+       </property>
        <property name="text">
         <string>...</string>
        </property>
        <property name="icon">
         <iconset resource="res.qrc">
-         <normaloff>:/icon/front</normaloff>:/icon/front</iconset>
+         <normaloff>:/icon2/play-next</normaloff>:/icon2/play-next</iconset>
        </property>
        <property name="iconSize">
         <size>
@@ -240,12 +255,15 @@ color: rgb(255, 255, 0);</string>
        <layout class="QHBoxLayout" name="horizontalLayout_2">
         <item>
          <widget class="QToolButton" name="mute_btn">
+          <property name="styleSheet">
+           <string notr="true">border: none;</string>
+          </property>
           <property name="text">
            <string>...</string>
           </property>
           <property name="icon">
            <iconset resource="res.qrc">
-            <normaloff>:/icon/mute2</normaloff>:/icon/mute2</iconset>
+            <normaloff>:/icon2/sound-off</normaloff>:/icon2/sound-off</iconset>
           </property>
           <property name="iconSize">
            <size>
@@ -257,12 +275,15 @@ color: rgb(255, 255, 0);</string>
         </item>
         <item>
          <widget class="QToolButton" name="volume_down_btn">
+          <property name="styleSheet">
+           <string notr="true">border: none;</string>
+          </property>
           <property name="text">
            <string>...</string>
           </property>
           <property name="icon">
            <iconset resource="res.qrc">
-            <normaloff>:/icon/volume0</normaloff>:/icon/volume0</iconset>
+            <normaloff>:/icon2/volume-down</normaloff>:/icon2/volume-down</iconset>
           </property>
           <property name="iconSize">
            <size>
@@ -274,12 +295,15 @@ color: rgb(255, 255, 0);</string>
         </item>
         <item>
          <widget class="QToolButton" name="volume_up_btn">
+          <property name="styleSheet">
+           <string notr="true">border: none;</string>
+          </property>
           <property name="text">
            <string>...</string>
           </property>
           <property name="icon">
            <iconset resource="res.qrc">
-            <normaloff>:/icon/volume1</normaloff>:/icon/volume1</iconset>
+            <normaloff>:/icon2/volume-up</normaloff>:/icon2/volume-up</iconset>
           </property>
           <property name="iconSize">
            <size>
@@ -306,8 +330,11 @@ color: rgb(255, 255, 0);</string>
     <layout class="QHBoxLayout" name="horizontalLayout_3">
      <item>
       <widget class="QLabel" name="time_left_label">
+       <property name="styleSheet">
+        <string notr="true">color: rgb(255, 255, 0);</string>
+       </property>
        <property name="text">
-        <string>TextLabel</string>
+        <string>------</string>
        </property>
       </widget>
      </item>
@@ -320,8 +347,11 @@ color: rgb(255, 255, 0);</string>
      </item>
      <item>
       <widget class="QLabel" name="time_right_label">
+       <property name="styleSheet">
+        <string notr="true">color: rgb(255, 255, 0);</string>
+       </property>
        <property name="text">
-        <string>TextLabel</string>
+        <string>------</string>
        </property>
       </widget>
      </item>

res.qrc

@@ -20,4 +20,16 @@
         <file alias="background2">picture/background2.jpg</file>
         <file alias="background5">picture/5.jpg</file>
     </qresource>
+    <qresource prefix="/icon2">
+        <file alias="pause">icon2/pause.png</file>
+        <file alias="play">icon2/play.png</file>
+        <file alias="play-next">icon2/play-next.png</file>
+        <file alias="play-previous">icon2/play-previous.png</file>
+        <file alias="rewind-back">icon2/rewind-back.png</file>
+        <file alias="rewind-forward">icon2/rewind-forward.png</file>
+        <file alias="sound-off">icon2/sound-off.png</file>
+        <file alias="sound-on">icon2/sound-on.png</file>
+        <file alias="volume-down">icon2/volume-down.png</file>
+        <file alias="volume-up">icon2/volume-up.png</file>
+    </qresource>
 </RCC>