Obtaining xml variable values in a property widget

ParaView Support
1

I have a plugin that implements a property widget, the plugin is an implementation of the vtkPOpenFOAMReader source.
In a portion of the xml file I have:

<StringVectorProperty name="FileName" 
      command="SetFileName"
      animateable="0"
      number_of_elements="1">
      <FileListDomain name="files"/>
      <Documentation>This property specifies the file name for the
        reader.</Documentation>
    </StringVectorProperty>
      
    <IntVectorProperty name="pvOptAirfoil"
      number_of_elements="1"
      default_values="0"
      panel_widget="pvOptAirfoil">
      <BooleanDomain name="bool"/>
    </IntVectorProperty>

Where pvOptAirfoil is the property widget I am creating. Is it possible to expose the value of the filename to the code that handles the qt based property widget? Or obtain the value from the proxy somehow?

2

I found a solution by creating a dummy QLineEdit object and linking the property value from the proxy.

  foamFilePath = new QLineEdit(this);
  this->addPropertyLink(foamFilePath, "text", SIGNAL(textChanged()), this->proxy()->GetProperty("FileName"));

It seems to work, but is there a more direct way of manipulating the properties?

3

This fix also breaks the refresh (Modified command in xml) for some reason. Existing data loads fine but I cannot refresh the dataset.

4

Hi Andrew,

In case you wrap your plugin in xml file, in RequestData() and RequestInformation() functions, which are the parts of your plugin, you have an access to FileName variable just by typing:
FileName
e.g.
print('FileName:', FileName)
(using last string, in ParaView’s Output Messages window you will see the value of FileName variable).

Best Regards,
Pavel

5

The file I am trying to access the FileName variable in is an instance of pqPropertyWidget. I know the reader source code has access to FileName from RequestInformation, but does the pqPropertyWidget have access as well? If so do you have an example?