From kdevelop  Mon Jul 02 20:56:39 2001
From: =?iso-8859-1?q?R=FCdiger=20Kn=F6rig?= <ruediger () knoerig ! de>
Date: Mon, 02 Jul 2001 20:56:39 +0000
To: kdevelop
Subject: bug in kdevelop1.4's Qt2 MDI project template
X-MARC-Message: https://marc.info/?l=kdevelop&m=99410823006386

While working on a kdevelop Qt2 mdi project I got crashes if the loading of a 
document failed and a new document should be created. The code in the 
"openDocumentFile" member function of the doc object who should do this is:

  doc = new QtpLgviewerDoc();
  pDocList->append(doc);
  doc->newDocument();
  // Creates an untitled window if file is 0     
  if(!file)
  {
    untitledCount+=1;
    QString fileName=QString(tr("Untitled%1")).arg(untitledCount);
    doc->setPathName(fileName);
    doc->setTitle(fileName);
  }
  // Open the file
  else
  {
    try{doc->openDocument(file);}
    catch(QString errormsg)
    {
      QMessageBox::critical(this, tr("Error !"),tr(errormsg));
      delete doc;
      return;
    }
  }
  // create the window
  createClient(doc);

This causes trouble if the document could not be loaded (exception catch), so 
you have a destroyed object in pDocList!
To fix this, use the remove() method of pFocList:

  else
  {
    try{doc->openDocument(file);}
    catch(QString errormsg)
    {
      QMessageBox::critical(this, tr("Error !"),tr(errormsg));
      pDocList->remove(doc);
      return;
    }
  }

 The constructor of the app object sets AutoDelete to true, so the object ist 
 deleted.

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