QTreeWidgetItem ?

[allensr]

This is probably an easy question (except for me ), but how do you get a QTreeWidgetItem's parents column number? I have QTreeWidget that when a user selects an item, I am building a concatenated string of all of that selected item's parent's names. I can get the original item's name that is selected from currentColumn().

...
   foreach(item, selected)
   {
      attrName = item->text(mAttributeTreeWidget->currentColumn());
      if(item->parent())
      {
         QTreeWidgetItem * parent = item->parent();
         parentName = parent->text(??));
         if(parent->parent())
         {
            QTreeWidgetItem * plat = parent->parent();
            platName = plat->text(??);
            if(plat->parent())
            {
               QTreeWidgetItem * run = plat->parent();
               runName = run->text(??);
            }
         }
      }
   }
      QString fullName = runName + "::" + platName + "::" + attrName;
...

...
   foreach(item, selected)
   {
      attrName = item->text(mAttributeTreeWidget->currentColumn());
      if(item->parent())
      {
         QTreeWidgetItem * parent = item->parent();
         parentName = parent->text(??));
         if(parent->parent())
         {
            QTreeWidgetItem * plat = parent->parent();
            platName = plat->text(??);
            if(plat->parent())
            {
               QTreeWidgetItem * run = plat->parent();
               runName = run->text(??);
            }
         }
      }
   }
      QString fullName = runName + "::" + platName + "::" + attrName;
...

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[jacek]

how do you get a QTreeWidgetItem's parents column number?

But which one? Each QTreeWidgetItem consists of several columns --- it's something like a table row with several cells.

Most likely currentColumn() will give you what you want.

[allensr]

But which one?

I'm trying to get the parent of the QTreeWidgetItem selected by the user. So the user may select an item in column 2 but the parent is in column 0. I can get the selected item's column number, but still am not getting the parents'. You mentioned columnCount(), which I am using, but evidently doing it wrong. For the selected item I am making the call:

mAttributeTreeWidget->currentColumn()

mAttributeTreeWidget->currentColumn()

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which is giving me the right column. But for the parent's column I am doing:

QTreeWidgetItem * parent = item->parent();
int column = parent()->treeWidget()->currentColumn());
qDebug() << "Parent's Column  " << column << endl;

QTreeWidgetItem * parent = item->parent();
int column = parent()->treeWidget()->currentColumn());
qDebug() << "Parent's Column  " << column << endl;

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But am getting the same column as the selected item. I know for a fact that the parent is in column 0, but this call always returns column 1.

What am I doing wrong??

TIA.

[jacek]

So the user may select an item in column 2 but the parent is in column 0.

In QTreeWidget an item represents the whole row, so there is no "item in column x", but "column x of item".

But am getting the same column as the selected item. I know for a fact that the parent is in column 0, but this call always returns column 1.

Each item has the same number of columns, so the parent has both column 0 and column 1. What data do you hold in those columns?

[allensr]

OK. So perhaps I am going about this wrong. The reason for the original question is I am trying to get the text from the parent and in the API you have to specify the column. I am not sure how to do that. Do you have a suggestion on the correct way to get this information?

BTW, if I just hardcode 0 in the call I get the correct text string.

foreach(item, selected)   
{      
   attrName = item->text(mAttributeTreeWidget->currentColumn());      
   if(item->parent())      
   {
      QTreeWidgetItem * parent = item->parent();
      parentName = parent->text(??));
   }
}

foreach(item, selected)   
{      
   attrName = item->text(mAttributeTreeWidget->currentColumn());      
   if(item->parent())      
   {
      QTreeWidgetItem * parent = item->parent();
      parentName = parent->text(??));
   }
}

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[jacek]

if I just hardcode 0 in the call I get the correct text string.

If you want the text from column 0, there's no other way than hardcode that 0 somewhere.

You can subclass QTreeWidgetItem and add a method that returns the text you want:

QString MyTreeWidgetItem::name() const
{
   return text( 0 );
}
...
MyTreeWidgetItem *item = dynamic_cast< MyTreeWidgetItem * >( widgetItem );
if( item ) {
   parentName = item->name();
}

QString MyTreeWidgetItem::name() const
{
   return text( 0 );
}
...
MyTreeWidgetItem *item = dynamic_cast< MyTreeWidgetItem * >( widgetItem );
if( item ) {
   parentName = item->name();
}

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Alternatively you can define an enum and name those columns:

enum SomeItemColumn {
   Name          = 0,
   SomethingElse = 1,
   AndSoOn       = 2
};
...
parentName = item->text( Name );

enum SomeItemColumn {
   Name          = 0,
   SomethingElse = 1,
   AndSoOn       = 2
};
...
parentName = item->text( Name );

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