CAknPopupField Class Reference

API published in: S60 1st Ed

Link against: avkon.lib

Capability Information

Required Capabilities

None

#include <aknpopupfield.h>

Inherits CEikBorderedControl, and MEikListBoxObserver.

Inherited by CAknPopupFieldText.

Detailed Description

Represents a combo box type control, used to implement the Series 60 pop-up field.


Public Types
enum	EAknPopupFieldSelectionMode { EAknPopupFieldLabelMode, EAknPopupFieldSelectionListMode }
	Selection mode of the popup field. More...
enum	EAknFormMode { EAknFormModeView, EAknFormModeEdit, EAknFormModeViewWideWithGraphic, EAknFormModeViewWideWithoutGraphic, EAknFormModeEditWideWithGraphic, EAknFormModeEditWideWithoutGraphic }
	Form mode for the popup field. More...
Public Member Functions
EAknPopupFieldSelectionMode	SelectionMode () const
EAknFormMode	FormMode () const
IMPORT_C	CAknPopupField ()
	C++ default constructor.
IMPORT_C	~CAknPopupField ()
	Destructor.
IMPORT_C void	ConstructL ()
	Handles 2nd phase construction.
IMPORT_C void	SetAllowsUserDefinedEntry (TBool aAllows)
	Sets a flag that enables user defined entry.
IMPORT_C void	ActivateSelectionListL ()
	Causes a list of pre-defined values to appear.
IMPORT_C void	SetQueryValueL (MAknQueryValue *aValue)
	Used by the client to set the query value.
IMPORT_C void	SetFont (const CFont *aFont)
	Sets the font of the contained label.
IMPORT_C void	SetShowIndicatorsL (TBool aShowIndicators)
	Sets a flag that determines whether the indicators are shown.
IMPORT_C TInt	NumLines () const
	Number of lines used.
IMPORT_C void	SetPopupFieldObserver (MAknPopupFieldObserver *aObserver)
	Sets an observer of this class to receive events from popup field.
IMPORT_C void	SetEmptyListNoteL (TInt aResourceId, CAknNoteDialog::TTimeout aTimeout=CAknNoteDialog::EShortTimeout, CAknNoteDialog::TTone aTone=CAknNoteDialog::ENoTone)
	Sets the note to be displayed when the selection list has no items available.
IMPORT_C void	SetEmptyTextL (const TDesC &aEmptyText)
	Sets the empty list note text.
IMPORT_C void	SetOtherTextL (const TDesC &aOtherText)
	Sets the text to be added to the bottom of the array to enter user defined data.
IMPORT_C void	SetInvalidTextL (const TDesC &aInvalidText)
	Sets the text for view state when none of the elements in the list are available.
IMPORT_C TKeyResponse	OfferKeyEventL (const TKeyEvent &aKeyEvent, TEventCode aType)
	From `CCoeControl`.
IMPORT_C void	ConstructFromResourceL (TResourceReader &aReader)
	From `CCoeControl`.
IMPORT_C TSize	MinimumSize ()
	From `CCoeControl`.
IMPORT_C void	HandleResourceChange (TInt aType)
	From `CCoeControl`.
IMPORT_C void	HandlePointerEventL (const TPointerEvent &aPointerEvent)
	From `CCoeControl`.
IMPORT_C void	SetMaxNumberOfLinesPermitted (TInt aMaxNoLines)
	/** Sets the maximium number of lines that can be displayed.
IMPORT_C void	SetFormFieldRect (TRect aFormFieldRect)
	Sets a form field rectangle so that a popup field can correctly position the label.
Protected Member Functions
IMPORT_C void	HandleControlEventL (CCoeControl *aControl, TCoeEvent aEvent)
	From `MCoeControlObserver`.
IMPORT_C void	ProcessCommandL (TInt aCommandId)
	From `MEikCommandObserver`.
IMPORT_C void	HandleListBoxEventL (CEikListBox *aListBox, TListBoxEvent aEventType)
	From `MEikListBoxObserver`.
IMPORT_C TInt	CountComponentControls () const
	From `CCoeControl`.
IMPORT_C CCoeControl *	ComponentControl (TInt aIndex) const
	From `CCoeControl`.
IMPORT_C void	SizeChanged ()
	From `CCoeControl`.
IMPORT_C void	FocusChanged (TDrawNow aDrawNow)
	From `CCoeControl`.
IMPORT_C void	Draw (const TRect &aRect) const
	From `CEikBorderedControl`.
void	CommonConstructL ()
	Construction tasks common to both a normal construction and a construction from a resource.
IMPORT_C TTypeUid::Ptr	MopSupplyObject (TTypeUid aId)
	From `CCoeControl`.
Protected Attributes
CEikLabel *	iLabel
	Label of the popup field.
CAknPopupFieldBitmapButton *	iButton
	Bitmap button for the popup field.
CAknFormGraphicStyleListBox *	iSelectionList
	List box for the popup field usage.
CAknListBoxLayoutDecorator *	iLayoutDecorator
	Contains a popup field selection array and a leading text that will be inserted before the text from the descriptor array entry.
CEikButtonGroupContainer *	iCba
	Button group container for the popup field.
CAsyncCallBack *	iAttemptExitAsync
	Active object for calling `AttemptExitCallbackL` asynchronously.
TInt	iFlags
	Flags for the popup field.
TInt	iWidth
	Maximum line width.
HBufC *	iOtherText
	Text to the bottom of the selection array.
HBufC *	iEmptyText
	The empty list note text.
HBufC *	iInvalidText
	The invalid text.
TInt	iEmptyNoteResourceId
	Resource id for the empty note.
MAknQueryValue *	iValue
	Query value for the popup field.
MAknPopupFieldObserver *	iObserver
	Observer for receiving events from the popup field.
EAknFormMode	iFormMode
	Enumeration representing form mode values.
CAknNoteDialog::TTimeout	iEmptyNoteTimeout
	Timeout for the empty tone.
CAknNoteDialog::TTone	iEmptyNoteTone
	Tone for the empty note.
TAknDesCArrayDecorator	iDecorator
	Selection array for the popup field.
EAknPopupFieldSelectionMode	iSelectionMode
	Enumeration representing selection mode values.
TInt	iMaxNoLines
	Maximum number of items in selection array.
Data Structures
class	CAknPopupFieldBitmapButton
	Specialises bitmap button to make the layout correct for popup field. More...

Member Enumeration Documentation

enum CAknPopupField::EAknFormMode

Form mode for the popup field.

Enumerator:

EAknFormModeView	View mode.
EAknFormModeEdit	Editable mode.
EAknFormModeViewWideWithGraphic	View mode with graphic.
EAknFormModeViewWideWithoutGraphic	View mode without graphic.
EAknFormModeEditWideWithGraphic	Edit mode with graphic.
EAknFormModeEditWideWithoutGraphic	Edit mode without graphic.

enum CAknPopupField::EAknPopupFieldSelectionMode

Selection mode of the popup field.

Enumerator:

EAknPopupFieldLabelMode	Label mode. In Label mode popup field is minimized and popup field looks identical to a list item. When it receives the selection key press it is changed to `EAknPopupFieldSelectionListMode` and the pre-defined list is displayed.
EAknPopupFieldSelectionListMode	Selection list mode. In this selection mode pre-defined popup selection list is displayed.

Constructor & Destructor Documentation

IMPORT_C CAknPopupField::CAknPopupField

(

)

C++ default constructor.

IMPORT_C CAknPopupField::~CAknPopupField

(

)

Destructor.

Member Function Documentation

IMPORT_C void CAknPopupField::ActivateSelectionListL

(

)

Causes a list of pre-defined values to appear.

Use this method to activate the pop-up field from a menu option command. Note that the desired control must be focused on before it can be activated.

void CAknPopupField::CommonConstructL ( ) [protected]

Construction tasks common to both a normal construction and a construction from a resource.

Used from ConstructL() and ConstructFromResourceL().

IMPORT_C CCoeControl* CAknPopupField::ComponentControl ( TInt aIndex ) const [protected]

From CCoeControl.

Gets an indexed component of a compound control.

Parameters:

aIndex

Control index.

Returns:: The component control with an index of aIndex.

IMPORT_C void CAknPopupField::ConstructFromResourceL

From CCoeControl.

Constructs the control from a resource file.

Parameters:

aReader

The resource reader pointing to the popup field resource.

Reimplemented in CAknPopupFieldText.

IMPORT_C void CAknPopupField::ConstructL

(

)

Handles 2nd phase construction.

IMPORT_C TInt CAknPopupField::CountComponentControls ( ) const [protected]

From CCoeControl.

Gets the number of controls contained in a compound control.

Returns:: The number of component controls contained by this control.

IMPORT_C void CAknPopupField::Draw ( const TRect & aRect ) const [protected]

From CEikBorderedControl.

Called by the framework to draw the control.

Parameters:

aRect

Rectangle in which the Cone framework believes drawing is needed.

Reimplemented from CEikBorderedControl.

IMPORT_C void CAknPopupField::FocusChanged ( TDrawNow aDrawNow ) [protected]

From CCoeControl.

Responds to a change in focus.

Parameters:

aDrawNow Contains the value that was passed to it by SetFocus().

EAknFormMode CAknPopupField::FormMode ( ) const [inline]

IMPORT_C void CAknPopupField::HandleControlEventL	(	CCoeControl *	aControl,
		TCoeEvent	aEvent
	)	`[protected]`

From MCoeControlObserver.

Handles an event from an observed control.

Parameters:

	aControl	The control that sent the event.
	aEvent	The event type.

IMPORT_C void CAknPopupField::HandleListBoxEventL	(	CEikListBox *	aListBox,
		TListBoxEvent	aEventType
	)	`[protected]`

From MEikListBoxObserver.

Processes key events from the listbox. Responds to EEventEnterKeyPressed to accept the pop-up.

Parameters:

	aListBox	Listbox being observed.
	aEventType	Event observed.

IMPORT_C void CAknPopupField::HandlePointerEventL

(

const TPointerEvent &

aPointerEvent

)

From CCoeControl.

Handles pointer events of popup field list.

Parameters:

aPointerEvent

The pointer event to be handled.

Reimplemented from CEikBorderedControl.

Reimplemented in CAknPopupFieldText.

IMPORT_C void CAknPopupField::HandleResourceChange

From CCoeControl.

Handles a change to the control's resources.

Parameters:

aType

The type of the resource change.

Reimplemented from CEikBorderedControl.

IMPORT_C TSize CAknPopupField::MinimumSize

(

)

From CCoeControl.

Determines the minimum size of the control.

Returns:: The minimum size required by the control.

IMPORT_C TTypeUid::Ptr CAknPopupField::MopSupplyObject ( TTypeUid aId ) [protected]

From CCoeControl.

Retrieves an object of the same type as that encapsulated in aId.

Parameters:

aId

An encapsulated object type ID.

Returns:: Encapsulates the pointer to the object provided. Note that the encapsulated pointer may be NULL.

IMPORT_C TInt CAknPopupField::NumLines

(

)

const

Number of lines used.

Returns:: Number of entries on the selection list. If selection list is not active, 1 is returned. NOTE that the number is limited by KAknMaxEditorLines.

IMPORT_C TKeyResponse CAknPopupField::OfferKeyEventL	(	const TKeyEvent &	aKeyEvent,
		TEventCode	aType
	)

From CCoeControl.

Handles key events.

Parameters:

	aKeyEvent	The key event.
	aType	The type of key event.

Returns:: Indicates whether or not the key event was used by this control.

IMPORT_C void CAknPopupField::ProcessCommandL ( TInt aCommandId ) [protected]

From MEikCommandObserver.

Processes events from the softkeys. Responds to EAknSoftkeyOk and EAknSoftkeyCancel to accept or cancel the pop-up.

Parameters:

aCommandId

Event Id from the soft-key.

EAknPopupFieldSelectionMode CAknPopupField::SelectionMode ( ) const [inline]

IMPORT_C void CAknPopupField::SetAllowsUserDefinedEntry

Sets a flag that enables user defined entry.

Note that flag can also be set from resources, but this method allows behaviour to be changed at runtime.

Parameters:

aAllows if ETrue sets a flag.

IMPORT_C void CAknPopupField::SetEmptyListNoteL	(	TInt	aResourceId,
		CAknNoteDialog::TTimeout	aTimeout = `CAknNoteDialog::EShortTimeout`,
		CAknNoteDialog::TTone	aTone = `CAknNoteDialog::ENoTone`
	)

Sets the note to be displayed when the selection list has no items available.

Parameters:

	aResourceId	Resource id for the note.
	aTimeout	= CAknNoteDialog::EShortTimeout Timeout for the note.
	aTone	= CAknNoteDialog::ENoTone Tone for the note.

IMPORT_C void CAknPopupField::SetEmptyTextL

Sets the empty list note text.

This note is displayed when the selection list has no items available.

Parameters:

aEmptyText

The empty list note text.

IMPORT_C void CAknPopupField::SetFont

Sets the font of the contained label.

Parameters:

aFont

Font definition used to set the font of the contained label.

IMPORT_C void CAknPopupField::SetFormFieldRect

Sets a form field rectangle so that a popup field can correctly position the label.

Parameters:

aFormFieldRect

The form field rectangle.

IMPORT_C void CAknPopupField::SetInvalidTextL

Sets the text for view state when none of the elements in the list are available.

Parameters:

aInvalidText

The invalid text.

IMPORT_C void CAknPopupField::SetMaxNumberOfLinesPermitted

/** Sets the maximium number of lines that can be displayed.

Parameters:

aMaxNoLines

The maximum number of lines.

IMPORT_C void CAknPopupField::SetOtherTextL

Sets the text to be added to the bottom of the array to enter user defined data.

Parameters:

aOtherText

Text to the bottom of the selection array.

IMPORT_C void CAknPopupField::SetPopupFieldObserver

(

MAknPopupFieldObserver *

aObserver

)

Sets an observer of this class to receive events from popup field.

Parameters:

aObserver

Pointer to the class that implements the observer interface.

IMPORT_C void CAknPopupField::SetQueryValueL

Used by the client to set the query value.

It is used to represent the user defined query value in this popup field control.

Parameters:

aValue

Pointer to query value, ownership is not passed.

IMPORT_C void CAknPopupField::SetShowIndicatorsL

Sets a flag that determines whether the indicators are shown.

In practice the indicators have the appearance of radio buttons.

Parameters:

aShowIndicators If ETrue, indicators are displayed.

IMPORT_C void CAknPopupField::SizeChanged ( ) [protected]

From CCoeControl.

Responds to changes to the size and position of the contents of this control.

Field Documentation

CAsyncCallBack* CAknPopupField::iAttemptExitAsync [protected]

Active object for calling AttemptExitCallbackL asynchronously.

Own.

CAknPopupFieldBitmapButton* CAknPopupField::iButton [protected]

Bitmap button for the popup field.

Own.

CEikButtonGroupContainer* CAknPopupField::iCba [protected]

Button group container for the popup field.

Own.

TAknDesCArrayDecorator CAknPopupField::iDecorator [protected]

Selection array for the popup field.

TInt CAknPopupField::iEmptyNoteResourceId [protected]

Resource id for the empty note.

CAknNoteDialog::TTimeout CAknPopupField::iEmptyNoteTimeout [protected]

Timeout for the empty tone.

CAknNoteDialog::TTone CAknPopupField::iEmptyNoteTone [protected]

Tone for the empty note.

HBufC* CAknPopupField::iEmptyText [protected]

The empty list note text.

Own.

TInt CAknPopupField::iFlags [protected]

Flags for the popup field.

EAknFormMode CAknPopupField::iFormMode [protected]

Enumeration representing form mode values.

HBufC* CAknPopupField::iInvalidText [protected]

The invalid text.

Used in the view state when none of the elements in the list are available. Own.

CEikLabel* CAknPopupField::iLabel [protected]

Label of the popup field.

Own.

CAknListBoxLayoutDecorator* CAknPopupField::iLayoutDecorator [protected]

Contains a popup field selection array and a leading text that will be inserted before the text from the descriptor array entry.

Own.

TInt CAknPopupField::iMaxNoLines [protected]

Maximum number of items in selection array.

MAknPopupFieldObserver* CAknPopupField::iObserver [protected]

Observer for receiving events from the popup field.

Not own.

HBufC* CAknPopupField::iOtherText [protected]

Text to the bottom of the selection array.

Own.

CAknFormGraphicStyleListBox* CAknPopupField::iSelectionList [protected]

List box for the popup field usage.

Own.

EAknPopupFieldSelectionMode CAknPopupField::iSelectionMode [protected]

Enumeration representing selection mode values.

MAknQueryValue* CAknPopupField::iValue [protected]

Query value for the popup field.

Not own.

TInt CAknPopupField::iWidth [protected]

Maximum line width.

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

aknpopupfield.h

CAknPopupField Class Reference

Capability Information

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Data Structures

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation