KTextEditor::ContainerInterface Class Reference

#include <containerinterface.h>

Public Member Functions
	ContainerInterface ()
virtual	~ContainerInterface ()
virtual QObject *	container ()=0
virtual void	setContainer (QObject *container)=0

Detailed Description

Class that allows the kpart host to provide some extensions.

The KTextEditor framework allows the kpart host to provide additional services to the kpart. Those services are provided through the ContainerInterface class.

If the container supports those specific services, it should set an instance of the service class with ContainerInterface::setContainer(). That instance should inherit QObject, have the Q_OBJECT macro and declare a Q_INTERFACES(), in order for the qobject_cast mechanism to work.

To obtain a ContainerInterface, in order to set a specific container extension, the kpart host should do:

// inside the kpart host
Editor * editor = KTextEditor::EditorChooser::editor();
ContainerInterface * iface = qobject_cast<ContainerInterface *>( editor );
if (iface != NULL) {
  iface->setContainer( myContainerExtension );
} else {
  // the kpart does not support ContainerInterface.
}

It is then up to the kpart to use it.

Definition at line 65 of file containerinterface.h.

Constructor & Destructor Documentation

ContainerInterface::ContainerInterface

(

)

Constructor.

Definition at line 228 of file ktexteditor.cpp.

ContainerInterface::~ContainerInterface ( )

virtual

Virtual Destructor.

Definition at line 231 of file ktexteditor.cpp.

Member Function Documentation

virtual QObject* KTextEditor::ContainerInterface::container ( )

pure virtual

Fetch the container extension.

This method is used by the KTextEditor component to know which extensions are supported by the KTextEditor host.

The kpart will cast the result with qobject_cast() to the right container extension to see if that particular extension is supported:

Example:

// inside the kpart

Editor * editor = KTextEditor::EditorChooser::editor();
ContainerInterface * iface = qobject_cast<ConainterInterace *>( editor );
SomeContainerExtension * myExt =
    qobject_cast<SomeContainerExtension *>( iface->container() );

if (myExt) {
    // do some stuff with the specific container extension
    // ...
} else {
    // too bad, that extension is not supported.
}

See also

setContainer

virtual void KTextEditor::ContainerInterface::setContainer ( QObject *  container )

pure virtual

Set the KTextEditor container.

This method is used by the KTextEditor host to set an instance of a class providing optional container extensions.

See also

container

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

• containerinterface.h
• ktexteditor.cpp