stub for musrWiz added.

src/musredit_qt5/PTextEdit.cpp

@@ -1600,10 +1600,26 @@ void PTextEdit::textSize( const QString &p )
  */
 void PTextEdit::musrWiz()
 {
-  if ( !currentEditor() )
-    return;
+  QString cmd = fAdmin->getExecPath() + "/musrWiz";
+  QString workDir = "./"; // think about it!!
 
-  QMessageBox::information(this, "**INFO**", "Will eventually call musrWiz");
+  QProcess *proc = new QProcess(this);
+
+  // make sure that the system environment variables are properly set
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  env.insert("LD_LIBRARY_PATH", env.value("ROOTSYS") + "/lib:" + env.value("LD_LIBRARY_PATH"));
+  proc->setProcessEnvironment(env);
+  proc->setWorkingDirectory(workDir);
+  proc->start(cmd);
+  if (!proc->waitForStarted()) {
+    // error handling
+    QString msg(tr("Could not execute the output command: ")+cmd[0]);
+    QMessageBox::critical( 0,
+                          tr("Fatal error"),
+                          msg,
+                          tr("Quit") );
+    return;
+  }
 }
 
 //----------------------------------------------------------------------------------------------------