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Containment Class Reference

from PyKDE4.plasma import *

Inherits: Plasma.Applet → QGraphicsWidget → QObject
Namespace: Plasma

Detailed Description

Containment plasma/containment.h <Plasma/Containment>

The base class for plugins that provide backgrounds and applet grouping containers

Containment objects provide the means to group applets into functional sets. They also provide the following:

creation of focussing event - drawing of the background image (which can be interactive) - form factors (e.g. panel, desktop, full screen, etc) - applet layout management

Since containment is actually just a Plasma.Applet, all the techniques used for writing the visual presentation of Applets is applicable to Containtments. Containments are differentiated from Applets by being marked with the ServiceType of Plasma/Containment. Plugins registered with both the Applet and the Containment ServiceTypes can be loaded for us in either situation.

See techbase.kde.org for a tutorial on writing Containments using this class.


Enumerations

Type { NoContainmentType, DesktopContainment, PanelContainment, CustomContainment, CustomPanelContainment }

Signals

 addSiblingContainment (Plasma.Containment a0)
 appletAdded (Plasma.Applet applet, QPointF pos)
 appletRemoved (Plasma.Applet applet)
 configureRequested (Plasma.Containment containment)
 contextChanged (Plasma.Context context)
 screenChanged (int wasScreen, int isScreen, Plasma.Containment containment)
 showAddWidgetsInterface (QPointF pos)
 toolBoxToggled ()
 toolBoxVisibilityChanged (bool a0)
 zoomRequested (Plasma.Containment containment, Plasma.ZoomDirection direction)

Methods

 __init__ (self, QGraphicsItem parent=0, QString serviceId=QString(), long containmentId=0)
 __init__ (self, QObject parent, [QVariant] args)
 __init__ (self, QString packagePath, long appletId, [QVariant] args)
QString activity (self)
Plasma.Applet addApplet (self, QString name, [QVariant] args=QVariantList(), QRectF geometry=QRectF(-1,-1,-1,-1))
 addApplet (self, Plasma.Applet applet, QPointF pos=QPointF(-1,-1), bool dontInit=1)
 addAssociatedWidget (self, QWidget widget)
 addSiblingContainment (self)
 addToolBoxAction (self, QAction action)
[Plasma.Applet] applets (self)
 clearApplets (self)
 closeToolBox (self)
QString containmentActions (self, QString trigger)
QStringList containmentActionsTriggers (self)
Plasma.Containment.Type containmentType (self)
Plasma.Context context (self)
 contextMenuEvent (self, QGraphicsSceneContextMenuEvent event)
Plasma.Corona corona (self)
int desktop (self)
 destroy (self)
 destroy (self, bool confirm)
 dragEnterEvent (self, QGraphicsSceneDragDropEvent event)
 dragLeaveEvent (self, QGraphicsSceneDragDropEvent event)
 dragMoveEvent (self, QGraphicsSceneDragDropEvent event)
bool drawWallpaper (self)
 dropEvent (self, QGraphicsSceneDragDropEvent event)
 enableAction (self, QString name, bool enable)
 focusNextApplet (self)
 focusPreviousApplet (self)
 init (self)
bool isToolBoxOpen (self)
QVariant itemChange (self, QGraphicsItem.GraphicsItemChange change, QVariant value)
 keyPressEvent (self, QKeyEvent event)
int lastDesktop (self)
int lastScreen (self)
 mouseMoveEvent (self, QGraphicsSceneMouseEvent event)
 mousePressEvent (self, QGraphicsSceneMouseEvent event)
 mouseReleaseEvent (self, QGraphicsSceneMouseEvent event)
 openToolBox (self)
 removeAssociatedWidget (self, QWidget widget)
 removeToolBoxAction (self, QAction action)
 resizeEvent (self, QGraphicsSceneResizeEvent event)
 restore (self, KConfigGroup group)
 restoreContents (self, KConfigGroup group)
 save (self, KConfigGroup group)
 saveContents (self, KConfigGroup group)
bool sceneEventFilter (self, QGraphicsItem watched, QEvent event)
int screen (self)
 setActivity (self, QString activity)
 setContainmentActions (self, QString trigger, QString pluginName)
 setContainmentType (self, Plasma.Containment.Type type)
 setDrawWallpaper (self, bool drawWallpaper)
 setFormFactor (self, Plasma.FormFactor formFactor)
 setLocation (self, Plasma.Location location)
 setScreen (self, int screen, int desktop=-1)
 setToolBox (self, Plasma.AbstractToolBox toolBox)
 setToolBoxOpen (self, bool open)
 setWallpaper (self, QString pluginName, QString mode=QString())
 showConfigurationInterface (self)
 showContextMenu (self, QPointF containmentPos, QPoint screenPos)
 showDropZone (self, QPoint pos)
Plasma.AbstractToolBox toolBox (self)
QGraphicsItem toolBoxItem (self)
Plasma.Wallpaper wallpaper (self)
 wheelEvent (self, QGraphicsSceneWheelEvent event)

Static Methods

QStringList listContainmentTypes ()
[KPluginInfo] listContainments (QString category=QString(), QString parentApp=QString())
[KPluginInfo] listContainmentsForMimetype (QString mimetype)
[KPluginInfo] listContainmentsOfType (QString type, QString category=QString(), QString parentApp=QString())

Signal Documentation

addSiblingContainment ( Plasma.Containment  a0
)

Tells the corona to create a new desktop containment

Signal syntax:
QObject.connect(source, SIGNAL("addSiblingContainment(Plasma::Containment*)"), target_slot)
appletAdded ( Plasma.Applet  applet,
QPointF  pos
)

This signal is emitted when a new applet is created by the containment

Signal syntax:
QObject.connect(source, SIGNAL("appletAdded(Plasma::Applet*, const QPointF&)"), target_slot)
appletRemoved ( Plasma.Applet  applet
)

This signal is emitted when an applet is destroyed

Signal syntax:
QObject.connect(source, SIGNAL("appletRemoved(Plasma::Applet*)"), target_slot)
configureRequested ( Plasma.Containment  containment
)

Emitted when the user wants to configure/change containment.

Signal syntax:
QObject.connect(source, SIGNAL("configureRequested(Plasma::Containment*)"), target_slot)
contextChanged ( Plasma.Context  context
)

The context associated to this containment has changed

Signal syntax:
QObject.connect(source, SIGNAL("contextChanged(Plasma::Context*)"), target_slot)
screenChanged ( int  wasScreen,
int  isScreen,
Plasma.Containment  containment
)

This signal indicates that a containment has been newly associated (or dissociated) with a physical screen.

Parameters:
wasScreen  the screen it was associated with
isScreen  the screen it is now associated with
containment  the containment switching screens

Signal syntax:
QObject.connect(source, SIGNAL("screenChanged(int, int, Plasma::Containment*)"), target_slot)
showAddWidgetsInterface ( QPointF  pos
)

Emitted when the containment requests an add widgets dialog is shown. Usually only used for desktop containments.

Parameters:
pos  where in the containment this request was made from, or an invalid position (QPointF()) is not location specific

Signal syntax:
QObject.connect(source, SIGNAL("showAddWidgetsInterface(const QPointF&)"), target_slot)
toolBoxToggled (   )

Emitted when the user clicks on the toolbox

Signal syntax:
QObject.connect(source, SIGNAL("toolBoxToggled()"), target_slot)
toolBoxVisibilityChanged ( bool  a0
)

Emitted when the toolbox is hidden or shown

Since:
4.3

Signal syntax:
QObject.connect(source, SIGNAL("toolBoxVisibilityChanged(bool)"), target_slot)
zoomRequested ( Plasma.Containment  containment,
Plasma.ZoomDirection  direction
)

Emitted when the containment requests zooming in or out one step.

Deprecated:

Signal syntax:
QObject.connect(source, SIGNAL("zoomRequested(Plasma::Containment*, Plasma::ZoomDirection)"), target_slot)

Method Documentation

__init__ (  self,
QGraphicsItem  parent=0,
QString  serviceId=QString(),
long  containmentId=0
)

Parameters:
parent  the QGraphicsItem this applet is parented to
serviceId  the name of the .desktop file containing the information about the widget
containmentId  a unique id used to differentiate between multiple instances of the same Applet type

__init__ (  self,
QObject  parent,
[QVariant]  args
)

This constructor is to be used with the plugin loading systems found in KPluginInfo and KService. The argument list is expected to have two elements: the KService service ID for the desktop entry and an applet ID which must be a base 10 number.

Parameters:
parent  a QObject parent; you probably want to pass in 0
args  a list of strings containing two entries: the service id and the applet id

__init__ (  self,
QString  packagePath,
long  appletId,
[QVariant]  args
)

Internal:
This constructor is to be used with the Package loading system.

Parameters:
parent  a QObject parent; you probably want to pass in 0
args  a list of strings containing two entries: the service id and the applet id

Since:
4.3

QString activity (   self )

Returns:
the current activity name associated with this containment

Plasma.Applet addApplet (  self,
QString  name,
[QVariant]  args=QVariantList(),
QRectF  geometry=QRectF(-1,-1,-1,-1)
)

Add an existing applet to this Containment

If dontInit is true, the pending constraints are not flushed either. So it is your responsibility to call both init() and flushPendingConstraints() on the applet.

Parameters:
applet  the applet that should be added
pos  the containment-relative position
dontInit  if true, init() will not be called on the applet

addApplet (  self,
Plasma.Applet  applet,
QPointF  pos=QPointF(-1,-1),
bool  dontInit=1
)

Add an existing applet to this Containment

If dontInit is true, the pending constraints are not flushed either. So it is your responsibility to call both init() and flushPendingConstraints() on the applet.

Parameters:
applet  the applet that should be added
pos  the containment-relative position
dontInit  if true, init() will not be called on the applet

addAssociatedWidget (  self,
QWidget  widget
)

associate actions with this widget, including ones added after this call. needed to make keyboard shortcuts work.

addSiblingContainment (   self )

Tells the corona to create a new desktop containment

addToolBoxAction (  self,
QAction  action
)

Add an action to the toolbox

[Plasma.Applet] applets (   self )

Returns:
the applets currently in this Containment

clearApplets (   self )

Removes all applets from this Containment

closeToolBox (   self )

Closes Containment's toolbox

QString containmentActions (  self,
QString  trigger
)

Returns:
the plugin name for the given trigger
Since:
4.4

QStringList containmentActionsTriggers (   self )

Returns:
a list of all triggers that have a containmentactions plugin associated
Since:
4.4

Plasma.Containment.Type containmentType (   self )

Returns the type of containment

Plasma.Context context (   self )

Returns:
the context for this containment
Since:
4.5

contextMenuEvent (  self,
QGraphicsSceneContextMenuEvent  event
)
Plasma.Corona corona (   self )

Returns the Corona (if any) that this Containment is hosted by

int desktop (   self )

Returns:
the viewport (e.g. virtual desktop) this Containment is associated with.

destroy (   self )

Destroys this containment and all its applets (after a confirmation dialog); it will be removed nicely and deleted. Its configuration will also be deleted.

@arg confirm whether or not confirmation from the user should be requested

destroy (  self,
bool  confirm
)

Destroys this containment and all its applets (after a confirmation dialog); it will be removed nicely and deleted. Its configuration will also be deleted.

@arg confirm whether or not confirmation from the user should be requested

dragEnterEvent (  self,
QGraphicsSceneDragDropEvent  event
)

@sa QGraphicsItem.dragEnterEvent()

dragLeaveEvent (  self,
QGraphicsSceneDragDropEvent  event
)

@sa QGraphicsItem.dragLeaveEvent()

dragMoveEvent (  self,
QGraphicsSceneDragDropEvent  event
)

@sa QGraphicsItem.dragMoveEvent()

bool drawWallpaper (   self )

Return whether wallpaper is painted or not.

dropEvent (  self,
QGraphicsSceneDragDropEvent  event
)

@sa QGraphicsItem.dropEvent()

enableAction (  self,
QString  name,
bool  enable
)

convenience function - enables or disables an action by name

Parameters:
name  the name of the action in our collection
enable  true to enable, false to disable

focusNextApplet (   self )

switch keyboard focus to the next of our applets

focusPreviousApplet (   self )

switch keyboard focus to the previous one of our applets

init (   self )

Reimplemented from Applet

bool isToolBoxOpen (   self )

Returns:
true if the toolbox is open
Since:
4.5

QVariant itemChange (  self,
QGraphicsItem.GraphicsItemChange  change,
QVariant  value
)
keyPressEvent (  self,
QKeyEvent  event
)
int lastDesktop (   self )

Returns:
the viewport (e.g. virtual desktop) this Containment was associated with last time it had a screen
Since:
4.5

int lastScreen (   self )

Returns:
the last screen number this containment had only returns -1 if it's never ever been on a screen
Since:
4.5

mouseMoveEvent (  self,
QGraphicsSceneMouseEvent  event
)
mousePressEvent (  self,
QGraphicsSceneMouseEvent  event
)
mouseReleaseEvent (  self,
QGraphicsSceneMouseEvent  event
)
openToolBox (   self )

Open the Containment's toolbox

removeAssociatedWidget (  self,
QWidget  widget
)

un-associate actions from this widget, including ones added after this call. needed to make keyboard shortcuts work.

removeToolBoxAction (  self,
QAction  action
)

Remove an action from the toolbox

resizeEvent (  self,
QGraphicsSceneResizeEvent  event
)

@sa QGraphicsItem.resizeEvent()

restore (  self,
KConfigGroup  group
)

@sa Applet.restore(KConfigGroup &)

restoreContents (  self,
KConfigGroup  group
)

Called when the contents of the containment should be loaded. By default this loads all previously saved Applets

Parameters:
group  the KConfigGroup to save settings under

save (  self,
KConfigGroup  group
)

@sa Applet.save(KConfigGroup &)

saveContents (  self,
KConfigGroup  group
)

Called when the contents of the containment should be saved. By default this saves all loaded Applets

Parameters:
group  the KConfigGroup to save settings under

bool sceneEventFilter (  self,
QGraphicsItem  watched,
QEvent  event
)
int screen (   self )

Returns:
the screen number this containment is serving as the desktop for or -1 if none

setActivity (  self,
QString  activity
)

Sets the current activity by name

Parameters:
activity  the name of the activity

setContainmentActions (  self,
QString  trigger,
QString  pluginName
)

Sets a containmentactions plugin.

Parameters:
trigger  the mouse button (and optional modifier) to associate the plugin with
pluginName  the name of the plugin to attempt to load. blank = set no plugin.

Since:
4.4

setContainmentType (  self,
Plasma.Containment.Type  type
)

Sets the type of this containment.

setDrawWallpaper (  self,
bool  drawWallpaper
)

Sets whether wallpaper is painted or not.

setFormFactor (  self,
Plasma.FormFactor  formFactor
)

Sets the form factor for this Containment. This may cause changes in both the arrangement of Applets as well as the display choices of individual Applets.

setLocation (  self,
Plasma.Location  location
)

Informs the Corona as to what position it is in. This is informational only, as the Corona doesn't change its actual location. This is, however, passed on to Applets that may be managed by this Corona.

Parameters:
location  the new location of this Corona

setScreen (  self,
int  screen,
int  desktop=-1
)

Sets the physical screen this Containment is associated with.

Parameters:
screen  the screen number this containment is the desktop for, or -1 if it is not serving as the desktop for any screen
desktop  the virtual desktop to also associate this this screen with

setToolBox (  self,
Plasma.AbstractToolBox  toolBox
)

Sets a custom ToolBox if there was an old one it will be deleted and the new one won't have any actions in it

Parameters:
item  the new toolbox item

Since:
4.4

setToolBoxOpen (  self,
bool  open
)

Sets the open or closed state of the Containment's toolbox

@arg open true to open the ToolBox, false to close it

setWallpaper (  self,
QString  pluginName,
QString  mode=QString()
)

Sets wallpaper plugin.

Parameters:
pluginName  the name of the wallpaper to attempt to load
mode  optional mode or the wallpaper plugin (e.g. "Slideshow"). These values are pugin specific and enumerated in the plugin's .desktop file.

showConfigurationInterface (   self )

@sa Applet.showConfigurationInterface()

showContextMenu (  self,
QPointF  containmentPos,
QPoint  screenPos
)

Shows the context menu for the containment directly, bypassing Applets altogether.

showDropZone (  self,
QPoint  pos
)

Shows a visual clue for drag and drop The default implementation does nothing, reimplement in containments that need it

Parameters:
pos  point where to show the drop target; if an invalid point is passed in the drop zone should not be shown

Plasma.AbstractToolBox toolBox (   self )

Returns:
the ToolBox
Since:
4.4

QGraphicsItem toolBoxItem (   self )

Returns:
the toolbox associated with this containment, or a null pointer if none

Plasma.Wallpaper wallpaper (   self )

Return wallpaper plugin.

wheelEvent (  self,
QGraphicsSceneWheelEvent  event
)

Static Method Documentation

QStringList listContainmentTypes (   )

Returns:
a list of all known types of Containments on this system

[KPluginInfo] listContainments ( QString  category=QString(),
QString  parentApp=QString()
)

Returns a list of all known containments.

Parameters:
category  Only containments matching this category will be returned. Useful in conjunction with knownCategories. If "Miscellaneous" is passed in, then applets without a Categories= entry are also returned. If an empty string is passed in, all applets are returned.
parentApp  the application to filter applets on. Uses the X-KDE-ParentApp entry (if any) in the plugin info. The default value of QString() will result in a list containing only applets not specifically registered to an application.

Returns:
list of applets

[KPluginInfo] listContainmentsForMimetype ( QString  mimetype
)

Returns a list of all known applets associated with a certain mimetype

Returns:
list of applets

[KPluginInfo] listContainmentsOfType ( QString  type,
QString  category=QString(),
QString  parentApp=QString()
)

Returns a list of all known Containments that match the parameters.

Parameters:
type  Only Containments with this string in X-Plasma-ContainmentCategories in their .desktop files will be returned. Common values are panel and desktop
category  Only applets matchin this category will be returned. Useful in conjunction with knownCategories. If "Miscellaneous" is passed in, then applets without a Categories= entry are also returned. If an empty string is passed in, all applets are returned.
parentApp  the application to filter applets on. Uses the X-KDE-ParentApp entry (if any) in the plugin info. The default value of QString() will result in a list containing only applets not specifically registered to an application.

Returns:
list of applets


Enumeration Documentation

Type
Enumerator:
None = 0
UnknownType = 1
Directory = 2
File = 4
NetworkLocation = 8
Executable = 16
ShellCommand = 32
Help = 64
FileSystem = Directory|File|Executable|ShellCommand

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