[ wxwindows-Bugs-1769655 ] wxAuiNotebook::InsertPage() leads to inconsistent state

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Bugs item #1769655, was opened at 2007-08-07 16:56
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Category: AUI
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andrey (andrey_yazhuk)
Assigned to: Benjamin I. Williams (biwillia76)
Summary: wxAuiNotebook::InsertPage() leads to inconsistent state

Initial Comment:
Initial report:

Calling wxAuiNotebook::RemovePage(index) and InsertPage(index) and then SetSelection(index) with the same index results in the wrong page being activated. Debugger shows that wxNotebook believes that the right page has already been selected and so SetSelection() call does not do anything. Clicking on the page that should have been selected by SetSelection() also has no effect – tabs do not switch at all, however after a few clicks on other pages the control returns back to normal operation.
It seems that the state of the notebook becomes inconsistent so all attempts to update the control are being ignored. Calling Refresh() or Update() do not change anything.
I found a workaround – before removing a page select some other page, in this case everything works fine.

Clarification:

Why this happens – after call to InsertPage() the active page in the internal tab control still points to the same window,  index of this window changes (increments because of the insertion), but m_curpage member is not updated (it should be incremented in this case). Possible solution is to updated m_currpage if needed.

Example :

size_t index = notebook->GetPageIndex(child_w);            
      notebook->RemovePage(index);

      notebook->InsertPage(index, new_page, label);
      new_page->Reparent(notebook);
      notebook->SetSelection(index);
      // at this point notebook indicates that page “index” s selected, however on screen
      // page “index +1” appears to be active


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