Qt/OSG GrahpicsWindowQt

[bradenedmunds]

Hi,

In my application I have two different GraphicsWindowQT classes. On startup a user can select a mode and the window is loaded. My problem is if a user selects “New..” and changes to the opposite mode.

Below is the code I’ve written to swap between the two GraphicsWindowQT classes:

QWidget *widget;
LoadingDialog *loading;
if(ConstructionObject::getConstructionType() == Ui::BUILDING)
   widget = new BuildingOSGWidget(this, loading);
else
   widget = new CaveOSGWidget(this, loading);
 
if(windowAlreadyCreated)
{
   delete ui->threeD->layout();
   ui->threeD = widget;
}
 
ui->threeD->setLayout(widget->layout());
ui->threeD->update();

QWidget *widget;
LoadingDialog *loading;
if(ConstructionObject::getConstructionType() == Ui::BUILDING)
   widget = new BuildingOSGWidget(this, loading);
else
   widget = new CaveOSGWidget(this, loading);
 
if(windowAlreadyCreated)
{
   delete ui->threeD->layout();
   ui->threeD = widget;
}
 
ui->threeD->setLayout(widget->layout());
ui->threeD->update();

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After this code runs, I get a blank blue screen. I know I can always shut down the application and reopen it, but I was hoping for a more elegant solution. If anyone has any suggestions I would appreciate it.

Thanks!

Braden


Side Node: When I say GraphicsWindowQT I'm referring to the OpenSceneGraph class.