4.0

src/widgets/downloadlistwidget.cpp

@@ -0,0 +1,201 @@
+#include "downloadlistwidget.h"
+#include "ui_downloadlistwidget.h"
+#include <QGraphicsOpacityEffect>
+#include <QPropertyAnimation>
+#include <QDebug>
+DownloadListWidget::DownloadListWidget(QWidget *parent) :
+    DBlurEffectWidget(parent),
+    ui(new Ui::DownloadListWidget)
+{
+    ui->setupUi(this);
+    installEventFilter(this);
+    this->setAttribute(Qt::WA_Hover,true);
+    setFocus();
+    setFixedSize(500,400);
+
+    // 计算显示下载速度
+    download_speed.setInterval(1000);
+    download_speed.start();
+    connect(&download_speed,&QTimer::timeout,[=]()
+    {
+        if(isdownload && theSpeed == "")
+        {
+            size1 = download_size;
+            double bspeed;
+            bspeed = size1 - size2;
+            if(bspeed < 1024)
+            {
+                theSpeed = QString::number(bspeed) + "B/s";
+            }
+            else if(bspeed < 1024 * 1024)
+            {
+                theSpeed = QString::number(0.01 * int(100 * (bspeed / 1024))) + "KB/s";
+            }
+            else if(bspeed < 1024 * 1024 * 1024)
+            {
+                theSpeed = QString::number(0.01 * int(100 * (bspeed / (1024 * 1024)))) + "MB/s";
+            }
+            else
+            {
+                theSpeed = QString::number(0.01 * int(100 * (bspeed / (1024 * 1024 * 1024)))) + "GB/s";
+            }
+            size2 = download_size;
+        }
+        if(isdownload){
+        downloaditemlist[nowDownload - 1]->setSpeed(theSpeed);
+        }
+    });
+}
+
+DownloadListWidget::~DownloadListWidget()
+{
+    delete ui;
+}
+void DownloadListWidget::clearItem()
+{
+    ui->listWidget->vScrollBar->scrollTop();
+    int n=ui->listWidget->count();
+    for(int i=0;i<n;i++)
+    {
+        QListWidgetItem *item = ui->listWidget->takeItem(0);
+        QWidget *card = ui->listWidget->itemWidget(item);
+        delete card;
+        card  = NULL;
+        delete item;
+        item  = NULL;
+    }
+    ui->listWidget->clear();
+}
+void DownloadListWidget::addItem(QString name,QString fileName,QString pkgName,const QPixmap icon,QString downloadurl)
+{
+    allDownload += 1;
+    urList.append(downloadurl);
+    if(dlist.contains(downloadurl))
+    {
+        return;
+    }
+    if(fileName.isEmpty())
+    {
+        return;
+    }
+    DownloadItem *di=new DownloadItem(this);
+    dlist<<downloadurl;
+    downloaditemlist<<di;
+    di->setName(name);
+    di->setFileName(fileName);
+    di->pkgName=pkgName;
+    di->seticon(icon);
+    QListWidgetItem* pItem = new QListWidgetItem();
+    pItem->setSizeHint(QSize(240, 50));
+    ui->listWidget->addItem(pItem);
+    ui->listWidget->setItemWidget(pItem, di);
+    if(!isBusy)
+    {
+        nowDownload += 1;
+        startRequest(urList.at(nowDownload - 1), fileName);     // 进行链接请求
+    }
+}
+
+void DownloadListWidget::startRequest(QUrl url, QString fileName)
+{
+    ui->listWidget->show();
+    isBusy = true;
+    isdownload = true;
+    downloaditemlist[allDownload - 1]->free = false;
+
+    downloadController = new DownloadController(this);  // 并发下载，在点击下载按钮的时候才会初始化
+    connect(downloadController, &DownloadController::downloadProcess, this, &DownloadListWidget::updateDataReadProgress);
+    connect(downloadController, &DownloadController::downloadFinished, this, &DownloadListWidget::httpFinished);
+    //connect(downloadController, &DownloadController::errorOccur, this, [=](QString msg){this->sendNotification(msg);});
+    downloadController->setFilename(fileName);
+    downloadController->startDownload(url.toString());
+}
+
+void DownloadListWidget::httpFinished() // 完成下载
+{
+    isdownload = false;
+    isBusy = false;
+    downloaditemlist[nowDownload - 1]->readyInstall();
+    downloaditemlist[nowDownload - 1]->free = true;
+    if(nowDownload < allDownload)
+    {
+
+        // 如果有排队则下载下一个
+        qDebug() << "切换下一个下载...";
+        nowDownload += 1;
+        while(downloaditemlist[nowDownload - 1]->close)
+        {
+            nowDownload += 1;
+        }
+        QString fileName = downloaditemlist[nowDownload - 1]->getName();
+        startRequest(urList.at(nowDownload-1), fileName);
+    }
+}
+
+int DownloadListWidget::isDownloading(QString url)
+{
+    int i = urList.indexOf(QUrl(url),0);
+    if(i == -1){
+        return 3;
+    }else if(i==nowDownload-1 && isdownload)
+    {
+        return 1;
+    }else if(i==nowDownload-1 && !isdownload)
+    {
+        return 2;
+    }else if(i<nowDownload-1)
+    {
+        return 2;
+    }
+    return 0;
+}
+
+void DownloadListWidget::updateDataReadProgress(QString speedInfo, qint64 bytesRead, qint64 totalBytes)
+{
+    if(totalBytes <= 0)
+    {
+        return;
+    }
+    theSpeed = speedInfo;
+    downloaditemlist[nowDownload - 1]->setMax(10000);   // 最大值
+    downloaditemlist[nowDownload - 1]->setValue(int(bytesRead * 100 / totalBytes) * 100);  // 当前值
+    download_size = bytesRead;
+    if(downloaditemlist[nowDownload - 1]->close)
+    {
+        // 随时检测下载是否被取消
+        downloadController->disconnect();
+        downloadController->stopDownload();
+        downloaditemlist[nowDownload - 1]->closeDownload();
+        httpFinished();
+    }
+}
+
+
+void DownloadListWidget::m_move(int x,int y)
+{
+    m_rect.setX(x);
+    m_rect.setY(y);
+    move(x,y);
+    return;
+}
+bool DownloadListWidget::eventFilter(QObject *watched, QEvent *event)
+{
+    if (Q_NULLPTR == watched) {
+        return false;
+    }
+    if (QEvent::ActivationChange == event->type()) {
+        if(QApplication::activeWindow() != this){
+            this->close();
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+void DownloadListWidget::mouseMoveEvent(QMouseEvent *event)
+{
+    setGeometry(m_rect);
+}
+
+void DownloadListWidget::on_pushButton_clicked()
+{
+    QDesktopServices::openUrl(QUrl("file:///tmp/spark-store", QUrl::TolerantMode));
+}