=======================================================================
Gnats 5929 (Hidden modal dialog) / Gnats 5989 Analysis, Phil, 12-14-2017
=======================================================================

Trace from sequence outlined by David in added info in Gnats 5898 (11-27-2017).
Unfortunately, the final raising of the Run Control Dialog doesn't result
in a focus change to that dialog. I'll have to find some other way of detecting
this condition. (Slightly edited):

--------------------------------

 qAppl_focusChanged
   'M' -- QApplication::activeModalWidget()
   'P' -- QApplication::activePopupWidget()
   'W' -- QApplication::activeWindow()

 qAppl_focusChanged [#1] "NULL"  --> "Workspace" [W]
 qAppl_focusChanged [#2] "Workspace"  --> "NULL"
 qAppl_focusChanged [#3] "NULL"  --> "Workspace" [W]
 qAppl_focusChanged [#4] "Workspace" [W] --> "Workspace" [W]
 qAppl_focusChanged [#5] "Workspace" [W] --> "Workspace" [W]
 qAppl_focusChanged [#6] "Workspace"  --> "" [W]
 qAppl_focusChanged [#7] ""  --> "Workspace" [W]
 qAppl_focusChanged [#8] "Workspace"  --> "QtRunControlDlg" [W]
 qAppl_focusChanged [#9] "QtRunControlDlg" [W] --> "QtRunControlDlg" [W]
 qAppl_focusChanged [#10] "QtRunControlDlg" [W] --> "QtRunControlDlg" [W]
 qAppl_focusChanged [#11] "QtRunControlDlg" [W] --> "QtRunControlDlg" [W]
 qAppl_focusChanged [#12] "QtRunControlDlg"  --> "RwNoticeBox" [MW]
 qAppl_focusChanged [#13] "RwNoticeBox" [M] --> "NULL"
 qAppl_focusChanged [#14] "NULL"  --> "RwNoticeBox" [MW]

===========
 C++ CODE:
===========

// private slot
void Workspace::qAppl_focusChanged (QWidget* priorWid, QWidget* curWid)
{
   static const char* mname ("Workspace::qAppl_focusChanged");
   static int callCnt (0);
   ++callCnt;

   if (callCnt == 1)
   {
      std::cout << mname << "\n"
                << "  'M' -- QApplication::activeModalWidget() \n"
                << "  'P' -- QApplication::activePopupWidget() \n"
                << "  'W' -- QApplication::activeWindow() \n"
                << std::endl;
   }

   QWidget* topPriorWid = priorWid ? priorWid->window() : NULL;
   QWidget* topCurWid = curWid ? curWid->window() : NULL;

   const QString priorWidStr =
      topPriorWid ? topPriorWid->objectName() : QString ("NULL");
   const QString curWidStr =
      topCurWid ? topCurWid->objectName() : QString ("NULL");

   const QWidget* activeModal = QApplication::activeModalWidget();
   const QWidget* activePopup = QApplication::activePopupWidget();
   const QWidget* activeWindow = QApplication::activeWindow();

   QString priorFlags;
   if (topPriorWid)
   {
      if (topPriorWid == activeModal)  priorFlags += QChar ('M');
      if (topPriorWid == activePopup)  priorFlags += QChar ('P');
      if (topPriorWid == activeWindow) priorFlags += QChar ('W');

      if (!priorFlags.isEmpty())
         priorFlags = QString ("[%1]") .arg (priorFlags);
   }

   QString curFlags;
   if (topCurWid)
   {
      if (topCurWid == activeModal)  curFlags += QChar ('M');
      if (topCurWid == activePopup)  curFlags += QChar ('P');
      if (topCurWid == activeWindow) curFlags += QChar ('W');

      if (!curFlags.isEmpty())
         curFlags = QString ("[%1]") .arg (curFlags);
   }

   QString fmt ("\"%1\" %2 --> \"%3\" %4");
   QString msg = fmt .arg (priorWidStr) .arg (priorFlags)
                     .arg (curWidStr) .arg (curFlags);

   std::cout << mname << " [#" << callCnt << "] " << qPrintable (msg)
             << std::endl;
}