Akonadi::ItemMonitor Class Reference

#include <itemmonitor.h>

Inheritance diagram for Akonadi::ItemMonitor:

Public Member Functions
	ItemMonitor ()
virtual	~ItemMonitor ()
Item	item () const
void	setItem (const Item &item)

Protected Member Functions
ItemFetchScope &	fetchScope ()
virtual void	itemChanged (const Item &item)
virtual void	itemRemoved ()
void	setFetchScope (const ItemFetchScope &fetchScope)

Detailed Description

A convenience class to monitor a single item for changes.

This class can be used as a base class for classes that want to show a single item to the user and keep track of status changes of the item without having to using a Monitor object themself.

Example:

// A label that shows the name of a contact item
 
class ContactLabel : public QLabel, public Akonadi::ItemMonitor
{
  public:
    ContactLabel( QWidget *parent = nullptr )
      : QLabel( parent )
    {
      setText( "No Name" );
    }
 
  protected:
    virtual void itemChanged( const Akonadi::Item &item )
    {
      if ( item.mimeType() != "text/directory" )
        return;
 
      const KContacts::Addressee addr = item.payload<KContacts::Addressee>();
      setText( addr.fullName() );
    }
 
    virtual void itemRemoved()
    {
      setText( "No Name" );
    }
};
 
...
 
ContactLabel *label = new ContactLabel( this );
 
const Akonadi::Item item = fetchJob->items().at(0);
label->setItem( item );

Author

Tobias Koenig tokoe.nosp@m.@kde.nosp@m..org

Definition at line 69 of file itemmonitor.h.

Constructor & Destructor Documentation

ItemMonitor()

ItemMonitor::ItemMonitor

(

)

Creates a new item monitor.

Definition at line 14 of file itemmonitor.cpp.

~ItemMonitor()

ItemMonitor::~ItemMonitor ( )

virtualdefault

Destroys the item monitor.

Member Function Documentation

fetchScope()

ItemFetchScope & ItemMonitor::fetchScope ( )

protected

Returns the item fetch scope.

Since this returns a reference it can be used to conveniently modify the current scope in-place, i.e. by calling a method on the returned reference without storing it in a local variable. See the ItemFetchScope documentation for an example.

Returns

a reference to the current item fetch scope

See also

setFetchScope() for replacing the current item fetch scope

Definition at line 66 of file itemmonitor.cpp.

item()

Item ItemMonitor::item

(

)

const

Returns the currently monitored item.

Definition at line 47 of file itemmonitor.cpp.

itemChanged()

void ItemMonitor::itemChanged ( const Item & item )

protectedvirtual

This method is called whenever the monitored item has changed.

Parameters

item	The changed item.

Definition at line 52 of file itemmonitor.cpp.

itemRemoved()

void ItemMonitor::itemRemoved ( )

protectedvirtual

This method is called whenever the monitored item has been removed.

Definition at line 57 of file itemmonitor.cpp.

setFetchScope()

void ItemMonitor::setFetchScope ( const ItemFetchScope & fetchScope )

protected

Sets the item fetch scope.

Controls how much of an item's data is fetched from the server, e.g. whether to fetch the full item payload or only meta data.

Parameters

fetchScope

The new scope for item fetch operations.

See also

fetchScope()

Definition at line 61 of file itemmonitor.cpp.

setItem()

void ItemMonitor::setItem

(

const Item &

item

)

Sets the item that shall be monitored.

Definition at line 21 of file itemmonitor.cpp.

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

• itemmonitor.h
• itemmonitor.cpp