增加拖放上传

mainwindow.cpp

@@ -37,14 +37,14 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(ui->pushButton_start, &QPushButton::toggled, [=](bool b){       
         if (b) {
             state = 0;
-            qint64 port = 9999;
-            while (!tcpServer->listen(QHostAddress::Any, port)) {
-                port--;
+            port_local = 9999;
+            while (!tcpServer->listen(QHostAddress::Any, port_local)) {
+                port_local--;
             }
-            ui->label_local->setText(IP + ":" + QString::number(port));
-            ui->lineEdit_port->setText(QString::number(port));
+            ui->label_local->setText(IP + ":" + QString::number(port_local));
+            ui->lineEdit_port->setText(QString::number(port_local));
             ui->textBrowser->clear();
-            ui->textBrowser->append("[" + QDateTime::currentDateTime().toString("HH:mm:ss") + "] 监听：" + IP + ":" + QString::number(port));
+            ui->textBrowser->append("[" + QDateTime::currentDateTime().toString("HH:mm:ss") + "] 监听：" + IP + ":" + QString::number(port_local));
             ui->pushButton_start->setText("Stop");
         } else {
             tcpServer->close();
@@ -155,6 +155,10 @@ QString MainWindow::BS(long b)
 
 void MainWindow::upload(QString filepath)
 {
+    if (ui->lineEdit_ip->text() == IP) {
+        ui->statusBar->showMessage("不需要上传给自己！");
+        return;
+    }
     qint64 port = ui->lineEdit_port->text().toInt();
     QTcpSocket *tcpSocket1 = new QTcpSocket(this);
     connect(tcpSocket1, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), [=](QAbstractSocket::SocketError socketError){
@@ -199,4 +203,25 @@ void MainWindow::upload(QString filepath)
             tcpSocket2->close();
         }
     });
+}
+
+void MainWindow::dragEnterEvent(QDragEnterEvent *e)
+{
+    //if(e->mimeData()->hasFormat("text/uri-list")) //只接收文件列表
+    e->acceptProposedAction(); //可以在这个窗口部件上拖放对象
+}
+
+void MainWindow::dropEvent(QDropEvent *e) //释放对方时，执行的操作
+{
+    QList<QUrl> urls = e->mimeData()->urls();
+    qDebug() << urls << urls.size();
+    if (urls.isEmpty())
+        return;
+
+    foreach (QUrl url, urls) {
+        qDebug() << url.toString();
+        QString filepath = url.toLocalFile();
+        qDebug() << filepath;
+        upload(filepath);
+    }
 }

mainwindow.h

@@ -16,6 +16,9 @@
 #include <QMetaEnum>
 #include <QJsonObject>
 #include <QJsonDocument>
+#include <QDropEvent>
+#include <QDragEnterEvent>
+#include <QMimeData>
 
 namespace Ui {
 class MainWindow;
@@ -37,10 +40,12 @@ private:
     QTcpSocket *tcpSocket;
     int state;
     QFile file;
-    qint64 length;
+    qint64 length, port_local;
     QString BS(long b);
     void upload(QString filepath);
     double lastModified = 0;
+    void dragEnterEvent(QDragEnterEvent*);
+    void dropEvent(QDropEvent*);
 
 private slots:
     void newConnect();

mainwindow.ui

@@ -10,6 +10,9 @@
     <height>500</height>
    </rect>
   </property>
+  <property name="acceptDrops">
+   <bool>true</bool>
+  </property>
   <property name="windowTitle">
    <string>文件传输</string>
   </property>
@@ -76,16 +79,27 @@
       </item>
       <item row="2" column="1" colspan="2">
        <widget class="QLineEdit" name="lineEdit_port">
+        <property name="acceptDrops">
+         <bool>false</bool>
+        </property>
         <property name="text">
          <string/>
         </property>
        </widget>
       </item>
       <item row="3" column="1" colspan="2">
-       <widget class="QLineEdit" name="lineEdit_root_dir"/>
+       <widget class="QLineEdit" name="lineEdit_root_dir">
+        <property name="acceptDrops">
+         <bool>false</bool>
+        </property>
+       </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QLineEdit" name="lineEdit_ip"/>
+       <widget class="QLineEdit" name="lineEdit_ip">
+        <property name="acceptDrops">
+         <bool>false</bool>
+        </property>
+       </widget>
       </item>
      </layout>
     </item>