Wed, 08/30/2017 - 11:16
Forums:
I am a newbie for opencascade. Firstly, I selected a shape from list control using SetSelected and it works. Then I select no item. It crashed in void AIS_LocalContext::UnhilightPicked (const Standard_Boolean theToUpdateViewer) function when calling ClearSelected().
The follow is the source.
void CObjListWnd::OnNMClickObjList(NMHDR * pNMHDR, LRESULT * pResult)
{
LPNMITEMACTIVATE pNMItemActivate = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);
int nItem = pNMItemActivate->iItem; // Get selected item index
CHSW_OCCDoc* pDoc = static_cast<CHSW_OCCDoc*>(((CHSW_OCCApp*)AfxGetApp())->GetActiveDoc());
Handle(AIS_InteractiveContext) anAIScontext = pDoc->GetAISContext();
if (nItem == -1) // Selected no item
{
anAIScontext->ClearSelected(); // Clear selection
return;
}
Handle(AIS_Shape) ais = new AIS_Shape(GetSelectShape(nItem)); //Get the shape from selected index
anAIScontext->SetSelected(ais); // Set selection
*pResult = 0;
}Is there a bug or I use it incorrectly?
Wed, 08/30/2017 - 12:40
It won't crash if I add CloseAllContexts before SetSelected. But the color of the shape won't be cleared. For example, a yellow line will turn to red if I select it, but it won't restore to yellow after I clearing selection.
Thu, 09/07/2017 - 18:46
I cannot comment if it is a bug or not, but this functionality has been deprecated and will be removed in next versions anyway - better porting application to not use Local Context.