Viewable Class Reference

#include <presentationinterface.hh>

Inheritance diagram for Viewable:

Collaboration diagram for Viewable:

Public Types
using	Ptr = std::shared_ptr< Viewable >
using	WeakPtr = std::weak_ptr< Viewable >

Public Member Functions
virtual void	open (ViewInterface::WeakPtr vi)=0
virtual void	close (ViewInterface::WeakPtr vi)=0

Additional Inherited Members
Private Member Functions inherited from Interface
	Interface ()=default
	Interface (const Interface &)=delete
Interface &	operator= (const Interface &)=delete
	Interface (Interface &&)=delete
Interface &	operator= (Interface &&)=delete
virtual	~Interface ()=default

Detailed Description

Implement Viewable if you want to be able to receive events when a View is created and/or deleted.

You'll want to receive these events if you either want to influence something on-screen (PresentationInterface, ColormapProvider), or want to store data related to a View (TiledBitmapInterface).

Member Typedef Documentation

Ptr

using Viewable::Ptr = std::shared_ptr<Viewable>

WeakPtr

using Viewable::WeakPtr = std::weak_ptr<Viewable>

Member Function Documentation

close()

virtual void Viewable::close ( ViewInterface::WeakPtr  vi )

pure virtual

Gets called just before the View is destroyed

Precondition

Should be called from within a Gdk critical section (i.e. between gdk_threads_enter() and gdk_threads_leave() calls)

Implemented in PresentationBase, TransformPresentation, CompressedTile, Layer, TiledBitmap, Scroom::ColormapImpl::ColormapProvider, ExamplePresentation, DummyPresentation, and anonymous_namespace{determine-size-test.cc}::PresentationInterfaceStub.

open()

virtual void Viewable::open ( ViewInterface::WeakPtr  vi )

pure virtual

Gets called just after the View is created

Precondition

Should be called from within a Gdk critical section (i.e. between gdk_threads_enter() and gdk_threads_leave() calls)

Implemented in PresentationBase, TransformPresentation, CompressedTile, Layer, Scroom::ColormapImpl::ColormapProvider, TiledBitmap, ExamplePresentation, DummyPresentation, and anonymous_namespace{determine-size-test.cc}::PresentationInterfaceStub.

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The documentation for this class was generated from the following file:

• libs/plugin-interfaces/inc/scroom/presentationinterface.hh