* Gui: Create group box for animation preferences
* Gui: Add spinning animation checkbox
* Gui: Implement isAnimating() for NavigationAnimator
* Gui: No need to enable animations in DemoMode
The spin animation is played regardless of the user preference and does not need to be enabled before starting the spin animation
* Gui: Change comment
- Animations are played through an Animator
- Standard animations have a fixed duration and inherit from QVariantAnimation
- The animation duration can be changed in the preferences
- Fix animations when using the two arrows above the NaviCube
- Start an animation or start and wait for an animation
- Replaces standard camera animations (e.g. by selecting standard views or NaviCube) with FixedTimeAnimation
- Replace View3DInventorViewer's CameraAnimation with FixedTimeAnimation
- Replace OpenInventor navigation style infinite spin animation with SpinningAnimation
- Stops an active animation when a new animation is started
- Stops an active animation when the user starts dragging, panning or zooming
- Refactor reorientCamera so it can be used in animations
- Enable animations by default
- Animations are played through an Animator
- Standard animations have a fixed duration and inherit from QVariantAnimation
- The animation duration can be changed in the preferences
- Fix animations when using the two arrows above the NaviCube
- Start an animation or start and wait for an animation
- Replaces standard camera animations (e.g. by selecting standard views or NaviCube) with FixedTimeAnimation
- Replace View3DInventorViewer's CameraAnimation with FixedTimeAnimation
- Replace OpenInventor navigation style infinite spin animation with SpinningAnimation
- Stops an active animation when a new animation is started
- Stops an active animation when the user starts dragging, panning or zooming
- Refactor reorientCamera so it can be used in animations
- Enable animations by default
* On lines where the variable type is obvious from inspection, avoid repeating the type using auto.
* When possible use a ranged for loop instead of begin() and end() iterators
