KTextEditor::MdiContainer Class Reference

#include <containerinterface.h>

Public Member Functions
	MdiContainer ()
virtual	~MdiContainer ()
virtual View *	activeView ()=0
virtual bool	closeDocument (Document *doc)=0
virtual bool	closeView (View *view)=0
virtual Document *	createDocument ()=0
virtual View *	createView (Document *doc)=0
virtual void	setActiveView (View *view)=0

Detailed Description

A container for MDI-capable kpart hosts.

The kpart container for the KTextEditor interface may have different capabilities. For example, inside KDevelop or Kate, the container can manage multiple views and multiple documents. However, if the kpart text is used inside konqueror as a replacement of the text entry in html forms, the container will only support one view with one document.

This class allows the kpart component to create and delete views, create and delete documents, fetch and set the current view. Note that the ktexteditor framework already supports multiple document and views and that the kpart host can create them and delete them as it wishes. What this class provides is the ability for the kpart component being hosted to do the same.

An instance of this extension should be set with ContainerInterface::setContainerExtension().Check ContainerInterface() to see how to obtain an instance of ContainerInterface. The instance should inherit QObject, inherit MdiContainer, declare the Q_OBJECT macro and declare a Q_INTERFACES(KTextEditor::MdiContainer) .

Code example to support MdiContainer (in the kpart host):

class MyMdiContainer : public QObject,
                       public MdiContainer
{
  Q_OBJECT
  Q_INTERFACES( KTextEditor::MdiContainer )

  public:
    // ...
}

To check if the kpart hosts supports the MDI container:

Editor * editor = KTextEditor::EditorChooser::editor();
ContainerInterface * iface = qobject_cast<ContainerInterface *>( editor );
if (iface) {
  MdiContainer * mdiContainer = qobject_cast<MdiContainer *>( iface->container() );
  if (MdiContainer != NULL ) {
   // great, I can create additional views
   // ...
  }
}

Definition at line 166 of file containerinterface.h.

Constructor & Destructor Documentation

MdiContainer::MdiContainer

(

)

Constructor.

Definition at line 233 of file ktexteditor.cpp.

MdiContainer::~MdiContainer ( )

virtual

Virtual destructor.

Definition at line 236 of file ktexteditor.cpp.

Member Function Documentation

virtual View* KTextEditor::MdiContainer::activeView ( )

pure virtual

Get the current activew view.

Returns

the active view.

See also

setActiveView

virtual bool KTextEditor::MdiContainer::closeDocument ( Document *  doc )

pure virtual

Closes of document doc .

The document is about to be closed but is still valid when this call is made. The Document does not contain any view when this call is made (closeView() has been called on all the views of the document previously).

The signal aboutToClose() is emitted before this method is called.

Returns

true if the removal is authorized and acted, or false if removing documents by the kpart is not supported by the container.

virtual bool KTextEditor::MdiContainer::closeView ( View *  view )

pure virtual

Closes the View view .

The view is still valid when this call is made but will be deleted shortly after.

Returns

true if the removal is authorized and acted, or false if the container does not support view removing from the kpart, or

virtual Document* KTextEditor::MdiContainer::createDocument ( )

pure virtual

Create a new Document and return it to the kpart.

Canonical implementation is:

Document * createDocument()
{
    Document * doc;
    // set parentQObject to relevant value
    doc = editor->createDocument( parentQObject );
    // integrate the new document in the document list of the
    // container, ...
    return doc;
}

The signal documentCreated() will be emitted during the creation.

Returns

a pointer to the new Document object.

virtual View* KTextEditor::MdiContainer::createView ( Document *  doc )

pure virtual

Creates a new View and return it to the kpart.

Canonical implementation is:

View * createView( Document * doc )
{
    // set parentWidget to relevant value
    return doc->createView( parentWidget );
}

The signal viewCreated() will be emitted during the createView() call.

Returns

a pointer to the new View created.

virtual void KTextEditor::MdiContainer::setActiveView ( View *  view )

pure virtual

Set the view requested by the part as the active view.

See also

activeView

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

• containerinterface.h
• ktexteditor.cpp