解决 wayland 下标题栏没图标的问题！

src/main.cpp

@@ -1,12 +1,44 @@
 
 #include <QApplication>
 #include "mainwindow.hpp"
+#include <QDebug>
+
+static const char desktop_file_content[] = R"ss([Desktop Entry]
+Categories=Development;Electronics;
+Comment=免费、强大、易用的PCB设计辅助工具
+Icon=edatool
+Name=JLC EDA Tool
+Type=Application
+StartupWMClass=edatool
+)ss";
 
 int main(int argc, char* argv[])
 {
     QApplication app(argc, argv);
+
+    if (app.platformName() == "wayland")
+    {
+        // 解决 wayland 下 没 icon 的问题
+        QFile iconfile(QDir::homePath() + "/.local/share/icons/edatool.png");
+        QFile resiconfile(":/images/res/logo.png");
+        resiconfile.open(QIODeviceBase::ReadOnly);
+        iconfile.open(QIODeviceBase::ReadWrite);
+
+        iconfile.write(resiconfile.readAll());
+        resiconfile.close(); iconfile.close();
+
+        QFile desktopfile(QDir::homePath() + "/.local/share/applications/edatool.desktop");
+        if (desktopfile.open(QIODeviceBase::ReadWrite))
+        {
+            desktopfile.write(desktop_file_content, sizeof (desktop_file_content) - 1);
+            desktopfile.write(QString("Exec=%1\n").arg(app.applicationFilePath()).toUtf8());
+        }
+        desktopfile.close();
+    }
+
     QIcon ico(":/images/res/logo.png");
     app.setWindowIcon(ico);
+    app.setDesktopFileName("edatool.desktop");
 
     MainWindow mywin;