Interface for something that can perform view updates. More...
#include <viewupdate.hxx>
Inheritance diagram for slideshow::internal::ViewUpdate:
Collaboration diagram for slideshow::internal::ViewUpdate:
Public Member Functions | |
| virtual bool | update ()=0 |
| Perform the update action on all views. More... | |
| virtual bool | needsUpdate () const =0 |
| Query whether updates are pending. More... | |
 Public Member Functions inherited from slideshow::internal::Disposable | |
| virtual | ~Disposable () |
| virtual void | dispose ()=0 |
| Dispose all object references. More... | |
Detailed Description
Interface for something that can perform view updates.
Use this interface for objects that perform view updates from time to time, e.g. slide content. Availability of updates can be queried, and subsequently performed.
Definition at line 36 of file viewupdate.hxx.
Member Function Documentation
◆ needsUpdate()
|
pure virtual |
Query whether updates are pending.
- Returns
- true, if updates are pending. Calling update() subsequently will perform the pending update then.
Implemented in slideshow::internal::ShapeManagerImpl.
Referenced by slideshow::internal::ScreenUpdater::commitUpdates().
◆ update()
|
pure virtual |
Perform the update action on all views.
- Returns
- true, if the update was performed successfully, false otherwise.
Implemented in slideshow::internal::ShapeManagerImpl.
Referenced by slideshow::internal::ScreenUpdater::commitUpdates().
The documentation for this class was generated from the following file:
