profile: ignore animation-speed setting when printing

When printing, the animation speed was set to 0 by the
caller and later reset to the original value. Instead of
modifying global state, set it internally (in the profile-code)
to zero when in print mode.

This is another small step in making the printing independent
from the shown profile.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

profile-widget/profilewidget2.cpp

@@ -555,7 +555,7 @@ void ProfileWidget2::plotDive(const struct dive *dIn, int dcIn, bool doClearPict
 		return;
 
 	// special handling when switching from empty state
-	animSpeed = instant || currentState == EMPTY ? 0 : qPrefDisplay::animation_speed();
+	animSpeed = instant || currentState == EMPTY || printMode ? 0 : qPrefDisplay::animation_speed();
 
 	// restore default zoom level
 	resetZoom();