Qt designer freezes after opening dialog [SOLVED]

deleted331

Thanks, I forgot to write that the problem does not occur while opening MainWindow UI - it is only for Dialog UIs. Here is the code of one of them

<ui version="4.0" >
 <class>CreateExecutionDialog</class>
 <widget class="QDialog" name="CreateExecutionDialog" >
  <property name="windowModality" >
   <enum>Qt::ApplicationModal</enum>
  </property>
  <property name="geometry" >
   <rect>
    <x>0</x>
    <y>0</y>
    <width>433</width>
    <height>245</height>
   </rect>
  </property>
  <property name="windowTitle" >
   <string>Execution Item</string>
  </property>
  <widget class="QLabel" name="label" >
   <property name="geometry" >
    <rect>
     <x>30</x>
     <y>10</y>
     <width>61</width>
     <height>17</height>
    </rect>
   </property>
   <property name="text" >
    <string>Task table</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_2" >
   <property name="geometry" >
    <rect>
     <x>30</x>
     <y>130</y>
     <width>61</width>
     <height>17</height>
    </rect>
   </property>
   <property name="text" >
    <string>Start time</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_4" >
   <property name="geometry" >
    <rect>
     <x>220</x>
     <y>130</y>
     <width>71</width>
     <height>17</height>
    </rect>
   </property>
   <property name="text" >
    <string>End time</string>
   </property>
  </widget>
  <widget class="QLabel" name="label_5" >
   <property name="geometry" >
    <rect>
     <x>30</x>
     <y>70</y>
     <width>104</width>
     <height>17</height>
    </rect>
   </property>
   <property name="text" >
    <string>Archive directory</string>
   </property>
  </widget>
  <widget class="QDateTimeEdit" name="startTimeEdit" >
   <property name="geometry" >
    <rect>
     <x>20</x>
     <y>150</y>
     <width>191</width>
     <height>29</height>
    </rect>
   </property>
   <property name="dateTime" >
    <datetime>
     <hour>0</hour>
     <minute>0</minute>
     <second>0</second>
     <year>2000</year>
     <month>1</month>
     <day>1</day>
    </datetime>
   </property>
   <property name="displayFormat" >
    <string>yyyy-MM-dd hh:mm:ss.zzz</string>
   </property>
  </widget>
  <widget class="QLineEdit" name="archiveDirectoryEdit" >
   <property name="geometry" >
    <rect>
     <x>20</x>
     <y>90</y>
     <width>271</width>
     <height>29</height>
    </rect>
   </property>
  </widget>
  <widget class="QDateTimeEdit" name="endTimeEdit" >
   <property name="geometry" >
    <rect>
     <x>220</x>
     <y>150</y>
     <width>191</width>
     <height>29</height>
    </rect>
   </property>
   <property name="displayFormat" >
    <string>yyyy-MM-dd hh:mm:ss.zzz</string>
   </property>
  </widget>
  <widget class="QPushButton" name="browseArchiveDirectoryButton" >
   <property name="geometry" >
    <rect>
     <x>310</x>
     <y>90</y>
     <width>101</width>
     <height>27</height>
    </rect>
   </property>
   <property name="text" >
    <string>Browse ...</string>
   </property>
  </widget>
  <widget class="QLineEdit" name="lineEdit" >
   <property name="enabled" >
    <bool>false</bool>
   </property>
   <property name="geometry" >
    <rect>
     <x>20</x>
     <y>30</y>
     <width>391</width>
     <height>29</height>
    </rect>
   </property>
   <property name="readOnly" >
    <bool>true</bool>
   </property>
  </widget>
  <widget class="QDialogButtonBox" name="buttonBox" >
   <property name="geometry" >
    <rect>
     <x>70</x>
     <y>190</y>
     <width>341</width>
     <height>32</height>
    </rect>
   </property>
   <property name="orientation" >
    <enum>Qt::Horizontal</enum>
   </property>
   <property name="standardButtons" >
    <set>QDialogButtonBox::Cancel|QDialogButtonBox::NoButton|QDialogButtonBox::Ok</set>
   </property>
   <property name="centerButtons" >
    <bool>false</bool>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections>
  <connection>
   <sender>buttonBox</sender>
   <signal>accepted()</signal>
   <receiver>CreateExecutionDialog</receiver>
   <slot>accept()</slot>
   <hints>
    <hint type="sourcelabel" >
     <x>248</x>
     <y>254</y>
    </hint>
    <hint type="destinationlabel" >
     <x>157</x>
     <y>274</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>buttonBox</sender>
   <signal>rejected()</signal>
   <receiver>CreateExecutionDialog</receiver>
   <slot>reject()</slot>
   <hints>
    <hint type="sourcelabel" >
     <x>316</x>
     <y>260</y>
    </hint>
    <hint type="destinationlabel" >
     <x>286</x>
     <y>274</y>
    </hint>
   </hints>
  </connection>
 </connections>
</ui>

I checked it using XML validator and the file is ok.

mrjj

Hi
I added a new UI file and pasted your xml into it.

Open fine here. ?!

I see
Task Table
Archive Directory with Browse button
and start end time.
ok cancel

Could you try to add a new UI file and paste the xmp to it ?
Just to see if that makes any difference.

deleted331

Thanks, I have tried copying it to the new .ui file, but behavior is the same.

mrjj

@predejtor

Hmm it must be something with QT Creator
itself or support libraries.

Maybe you could clone your virtual machine and install/reinstall QT just to check if something is wrong.

I will try to paste into a ubuntu Qt Creator just to check if linux version is happy with your file too.

update:
Opens file fine in qt 5.5 on ubuntu.

deleted331

@mrjj
Thank you for investigation. It may be the problem with VM, but I am not the person who manages it. Can it be the problem with Qt Creator config? If yes, what files should I look for?

mrjj

@predejtor

Well it seems to be a problem with QT Creator since the xml file seems valid and can be loaded in both win and linux.

So I assume something wrong with the Creator installation.

I am not aware of any config that would affect the reading of UI files as it is
a integrated part of Creator.

Would it be possible for you to create a snapshot of the WM and then reinstall qt?

deleted331

I have to ask administrators of the VM if it is possible. Many thanks for your time.

mrjj

@predejtor

It is possible to install qt with no root access

http://www.qtcentre.org/threads/23225-Installing-Qt-without-root-privileges

You could install a new qt to a new folder in /home and run it from there but to be on the safe side,
it is best to have a backup of what you have now.

One question.
If you make a new UI file and then insert control to it, it will also start to crash Creator ?

deleted331

@mrjj
I created new UI form and could modify it without problems (eg. add buttons). However when I put the xml code from previous dialog freeze occurred again - so I suppose something is wrong with this form's nodes.

mrjj

@predejtor
Just strange that the same xml works fine here.
But I guess if you can just recreate the dialogs and it works, it a fix.

deleted331

I have found what was the real problem. This issue occurred only on Dialog windows. I set for them 'modality' - ApplicationModal and that was the problem I was looking for. After removing this property from xml file everything is fine.
It seems to be a bug.

mrjj

@predejtor
Nice found!

Not sure where in the shown xml this is ?

remember to flag as solved :)

deleted331

After removing property "windowModality" freeze is not occurring again

<ui version="4.0" >
 <class>CreateExecutionDialog</class>
 <widget class="QDialog" name="CreateExecutionDialog" >
  <property name="windowModality" >
   <enum>Qt::ApplicationModal</enum>
  </property>
  <property name="geometry" >
...

System: CentOS 5.5
QT version: 4.2.1

mrjj

@predejtor said:

Ahh that way. Thank you.