void PainterTest_App::WindowRosterChanged()
{
auto_ptr<ZOSWindowRoster> theRoster(fOSApp->CreateOSWindowRoster());
for (;;)
{
ZOSWindow* theOSWindow;
if (!theRoster->GetNextOSWindow(2000000, theOSWindow))
{
// Timed out, just try again. This is a bad thing
// if the window is deadlocked against our lock, but
// that shouldn't be the case, and in fact the timeout
// shouldn't happen either.
continue;
}
if (!theOSWindow)
{
// No more windows, drop out of the loop.
break;
}
if (PainterTest_Window* theWindow = dynamic_cast<PainterTest_Window*>(theOSWindow->GetOwner()))
{
// We've got a painter window, so just return.
theRoster->UnlockCurrentOSWindow();
return;
}
theRoster->UnlockCurrentOSWindow();
}
// There are no open painter windows, so quit.
if (!TESTING && this->QuitRequested())
fOSApp->ExitRun();
}
PainterTest_Window* PainterTest_App::GetPainterWindow(const ZFileSpec& inFileSpec)
{
auto_ptr<ZOSWindowRoster> theRoster(fOSApp->CreateOSWindowRoster());
bool allOkay = true;
while (allOkay)
{
bool askedAnyWindows = false;
while (allOkay)
{
ZOSWindow* theOSWindow;
if (theRoster->GetNextOSWindow(2000000, theOSWindow))
{
if (!theOSWindow)
break;
if (PainterTest_Window* theWindow = dynamic_cast<PainterTest_Window*>(theOSWindow->GetOwner()))
{
askedAnyWindows = true;
if (sFileSpec_Equal(inFileSpec, theWindow->GetFileSpec()))
return theWindow;
}
theRoster->UnlockCurrentOSWindow();
}
else
{
// If we timed out, treat it as if the user had explicitly cancelled.
allOkay = false;
}
}
if (!askedAnyWindows)
break;
}
return nil;
}
bool ZApp::QuitRequested()
{
auto_ptr<ZOSWindowRoster> theRoster(fOSApp->CreateOSWindowRoster());
bool allOkay = true;
while (allOkay)
{
bool askedAnyWindows = false;
// First work through every window and ask those that are active and visible (tautological, I know) if it's okay to quit
while (allOkay)
{
ZOSWindow* theOSWindow;
if (theRoster->GetNextOSWindow(2000000, theOSWindow))
{
if (!theOSWindow)
break;
if (ZWindow* theWindow = dynamic_cast<ZWindow*>(theOSWindow->GetOwner()))
{
askedAnyWindows = true;
if (theWindow->GetWindowActive() && theWindow->GetShown())
{
theRoster->DropCurrentOSWindow();
allOkay = theWindow->WindowQuitRequested();
}
}
theRoster->UnlockCurrentOSWindow();
}
else
{
// If we timed out, treat it as if the user had explicitly cancelled.
allOkay = false;
}
}
// Reset the roster, which empties the list of visited windows but remembers the dropped windows.
theRoster->Reset();
// Now work through every window and ask those that are at least visible
while (allOkay)
{
ZOSWindow* theOSWindow;
if (theRoster->GetNextOSWindow(2000000, theOSWindow))
{
if (!theOSWindow)
break;
if (ZWindow* theWindow = dynamic_cast<ZWindow*>(theOSWindow->GetOwner()))
{
askedAnyWindows = true;
if (theWindow->GetShown())
{
theRoster->DropCurrentOSWindow();
allOkay = theWindow->WindowQuitRequested();
}
}
theRoster->UnlockCurrentOSWindow();
}
else
{
allOkay = false;
}
}
// Once more, reset the roster
theRoster->Reset();
// And work through every window, regardless of whether it's visible or active.
while (allOkay)
{
ZOSWindow* theOSWindow;
if (theRoster->GetNextOSWindow(2000000, theOSWindow))
{
if (!theOSWindow)
break;
if (ZWindow* theWindow = dynamic_cast<ZWindow*>(theOSWindow->GetOwner()))
{
askedAnyWindows = true;
theRoster->DropCurrentOSWindow();
allOkay = theWindow->WindowQuitRequested();
}
theRoster->UnlockCurrentOSWindow();
}
else
{
allOkay = false;
}
}
if (!askedAnyWindows)
break;
}
return allOkay;
}
