add use case diagram

Author: KeltorHD

client/connection.txt

@@ -0,0 +1,2 @@
+localhost
+20002

client/mainwindow.cpp

@@ -18,6 +18,16 @@ MainWindow::MainWindow(QWidget *parent)
     this->validator = new QRegularExpressionValidator(QRegularExpression("[A-Za-z0-9_]+"), this);
     this->ui->reg_login->setValidator(this->validator);
     this->ui->reg_pas->setValidator(this->validator);
+    QFile file(":/connection.txt");
+    file.open(QIODevice::ReadOnly | QIODevice::Text);
+    this->host = file.readLine();
+    this->host = this->host.sliced(0, this->host.size() - 1);
+    this->port = file.readLine().toInt();
+
+    QDir dir1(QDir::currentPath());
+    dir1.mkdir("images");
+    QDir dir2(QDir::currentPath() + "/images");
+    dir2.mkdir("patterns");
 
     for (size_t i = 0; i < this->test_widget->back.size(); i++)
     {

client/mainwindow.h

@@ -146,8 +146,8 @@ private slots:
     std::vector<QHBoxLayout*> pattern_laoyut_list;
 
     std::unique_ptr<QTcpSocket> socket;
-    const QString host{"localhost"};
-    const quint16 port{20002};
+    QString host;
+    quint16 port;
 
     void send(const QString& data);
 //    QString recv();

client/res.qrc

@@ -2,5 +2,6 @@
     <qresource prefix="/">
         <file>icon.png</file>
         <file>default.png</file>   
+        <file>connection.txt</file>
     </qresource>
 </RCC>