处理Linux下窗口位置显示不正确以及个边框丢失问题

CMakeLists.txt.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 13.0.2, 2025-03-19T08:46:05. -->
+<!-- Written by QtCreator 13.0.2, 2025-04-03T14:28:51. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
@@ -727,6 +727,7 @@
     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
     <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">E:/Code/CL-Softwares/Git/PowerModeler/build/Qt_MinGW_64_bit-Debug</value>
    </valuemap>
    <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
   </valuemap>

source/connectionDialog.cpp

@@ -13,6 +13,13 @@ ConnectionDialog::ConnectionDialog(QWidget *parent)
     , m_pMainWindow(nullptr)
 {
     ui->setupUi(this);
+    if(QSysInfo::kernelType() == "linux")
+    {
+        //Linux下默认的Qt::Dialog即使有父窗口也无法按照子窗口的行为进行展示，并且最大、最小按钮不好关闭，去边框后是简单的解决上述问题的方法
+        setWindowFlags(Qt::FramelessWindowHint);
+        setStyleSheet("QDialog{border: 1px solid rgb(205,205,205);border-radius:5px;}");
+    }
+    setModal(true);
     initialize();
 }
 

source/mainwindow.cpp

@@ -146,14 +146,13 @@ void MainWindow::onActionTrigger_connect()
         connect(m_pConnectionDialog, &ConnectionDialog::addConnection, this, &MainWindow::onSIG_addConnection);
     }
 
-   /* int nX = this->geometry().x() + (this->width() - m_pConnectionDialog->width()) * 0.5;
+    // int nX = this->geometry().x() + (this->width() - m_pConnectionDialog->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pConnectionDialog->height()) * 0.5;
+    // int nY = this->geometry().y() + (this->height() - m_pConnectionDialog->height()) * 0.5;
-    m_pConnectionDialog->move(nX, nY);*/
+    // m_pConnectionDialog->move(nX, nY);
-    QRect parentFrame = this->frameGeometry(); // 获取父窗口的完整几何信息（包含边框和标题栏），适用于快平台对其
+    QPoint centerPos = this->mapToGlobal(this->rect().center());
-    int nX = parentFrame.x() + (parentFrame.width() - m_pConnectionDialog->width()) / 2;
+    centerPos -= QPoint(m_pConnectionDialog->width()/2, m_pConnectionDialog->height()/2);
-    int nY = parentFrame.y() + (parentFrame.height() - m_pConnectionDialog->height()) / 2;
+    m_pConnectionDialog->move(centerPos);
-    m_pConnectionDialog->move(nX, nY);
+    m_pConnectionDialog->show();
-    m_pConnectionDialog->exec();
 }
 void MainWindow::onActionTrigger_disconnect()
 {

source/messageDialog.cpp

@@ -11,6 +11,13 @@ MessageDialog::MessageDialog(QWidget *parent)
     //setWindowFlags(windowFlags() & ~Qt::WindowCloseButtonHint);//去掉关闭按钮
     setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint);//去掉关闭按钮和图标
 
+    if(QSysInfo::kernelType() == "linux")
+    {
+        //Linux下默认的Qt::Dialog即使有父窗口也无法按照子窗口的行为进行展示，并且最大、最小按钮不好关闭，去边框后是简单的解决上述问题的方法
+        setWindowFlags(Qt::FramelessWindowHint);
+        setStyleSheet("QDialog{border: 1px solid rgb(205,205,205);border-radius:5px;}");
+    }
+
     setFixedSize(width(), height()); //不可缩放
 
     connect(ui->btnConfrim, SIGNAL(clicked()), this, SLOT(onBtnClicked_confirm()));

ui/connectionDialog.ui

@@ -360,13 +360,13 @@
             <widget class="QLabel" name="label_hostName">
              <property name="minimumSize">
               <size>
-               <width>91</width>
+               <width>106</width>
                <height>21</height>
               </size>
              </property>
              <property name="maximumSize">
               <size>
-               <width>91</width>
+               <width>106</width>
                <height>21</height>
               </size>
              </property>