Is there a way to save the whole graphic state in WPF?

microsoft.public.dotnet.framework

18 Oct 2007 4:57 PM

HappyGilmore

Consider the following pseudocode. What I want to do is save the complete
graphic state at the beginning of a function and then restore it back at the
end of the function call. In GDI+ there are functions Save() and Restore(),
which Iâ€™m using right now to achieve the following functionality. Now we are
migrating the application to WPF but the problem Iâ€™m facing is that there is
no function that returns the complete graphics state. In DrawingContext,
there are functions e.g. (PushClip, PushTransform, etc.) which pushes
individual graphic state but I want to take snapshoot of current graphics
state and then restore it back.
Foo()
{
// Take a snapshot of current graphics state and save it on a stack
SaveGraphicsState();
// change the graphics state by applying clipping or any other transformations
Bar()
DrawSomeLine()
// Restore the previous graphics state by popping the stack
RestoreGraphicsState();
}
Bar()
{
SaveGraphicsState();
Rotate(30);
DrawRectangle
Bar2();
RestoreGraphicsState()
}
Bar2()
{
SaveGraphicsState();
RestoreGraphicsState()
}