Class CEikArrowHeadScrollBar

CEikArrowHeadScrollBar

Support

Supported from 6.0

Description

An arrow head scroll bar. This consists of two small nudge button arrows, it has no shaft and so takes up very little space.

Scroll bars are used when all the content of another control cannot be seen at the same time. They may be oriented horizontally or vertically, and may be displayed in several ways.

Scroll bars represent integers, and have a maximum, a minimum, and a current position encapsulated within their model. The on-screen image of a scroll bar is calculated and displayed by the CEikArrowHeadScrollBar object, and user changes to the scroll bar (and hence its model) are reported to an interested class through the MEikScrollBarObserver interface.

Derivation

CBase Base class for all classes to be instantiated on the heap CCoeControl Control base class from which all other controls are derived CEikArrowHeadScrollBar An arrow head scroll bar CEikBorderedControl A control which is drawn surrounded by a rectangular border CEikScrollBar A scroll bar MCoeControlObserver Interface for a control to send events to another control, its observer

Defined in CEikArrowHeadScrollBar:
CEikArrowHeadScrollBar(), ConstructL(), Draw(), HandlePointerEventL(), ~CEikArrowHeadScrollBar()

Inherited from CBase:
operator new()

Inherited from CCoeControl:
ActivateGc(), BackedUpWindow(), CapturesPointer(), ClaimPointerGrab(), CloseWindow(), ConstructFromResourceL(), ControlContext(), ControlEnv(), CopyControlContextFrom(), CreateBackedUpWindowL(), CreateWindowL(), DeactivateGc(), DrawDeferred(), DrawNow(), DrawableWindow(), EnableDragEvents(), FocusChanged(), GetColor(), GetHelpContext(), GrabbingComponent(), HandleComponentControlsResourceChange(), HandlePointerBufferReadyL(), HandleRedrawEvent(), IgnoreEventsUntilNextPointerUp(), Index(), InputCapabilities(), IsActivated(), IsBackedUp(), IsBeingDestroyed(), IsBlank(), IsDimmed(), IsFocused(), IsNonFocusing(), IsReadyToDraw(), IsVisible(), MakeVisible(), MinimumSize(), Observer(), OfferKeyEventL(), OverrideColorL(), OwnsWindow(), Position(), PositionChanged(), PositionRelativeToScreen(), PrepareForFocusGainL(), PrepareForFocusLossL(), Rect(), RecursivelyMergedInputCapabilities(), ReportEventL(), ResetGc(), SetAllowStrayPointers(), SetBlank(), SetCanDrawOutsideRect(), SetComponentsToInheritVisibility(), SetContainerWindow(), SetContainerWindowL(), SetControlContext(), SetCornerAndSize(), SetCornerAndSizeL(), SetExtent(), SetExtentL(), SetExtentToWholeScreen(), SetExtentToWholeScreenL(), SetFocus(), SetFocusing(), SetGloballyCapturing(), SetNeighbor(), SetNonFocusing(), SetObserver(), SetPointerCapture(), SetPosition(), SetRect(), SetRectL(), SetSize(), SetSizeL(), SetSizeWithoutNotification(), SetSizeWithoutNotificationL(), Size(), SizeChanged(), SizeChangedL(), SystemGc(), Window()

Inherited from CEikBorderedControl:
Border(), HasBorder(), SetAdjacent(), SetBorder(), iBorder

Inherited from CEikScrollBar:
ActivateL(), ComponentControl(), CountComponentControls(), DefaultScrollBarBreadth(), DoSetLengthL(), EAll, EButtonsAtEndOfShaft, EButtonsAtStartOfShaft, EButtonsEitherSideOfShaft, EDecreaseButtonsDimmed, EDecreaseNudgeButton, EDecreaseOnly, EDecreasePageButton, EDecreaseShaft, EEikScrollBarHasHomeEndButtons, EEikScrollBarHasPageButtons, EEikScrollBarNoNudgeButtons, EEikScrollBarNoShaftOrThumb, EEikScrollBarShaftButNoThumb, EEndButton, EHomeButton, EHorizontal, EIncreaseButtonsDimmed, EIncreaseNudgeButton, EIncreaseOnly, EIncreasePageButton, EIncreaseShaft, ENoAutoDimming, ENoComponentsToDisplay, ENoRedrawRequired, ENone, ERedrawShaft, EThumb, EVertical, GetColorUseListL(), HandleResourceChange(), MinVisibleLength(), Model(), NumberOfButtonPairs(), SEikScrollBarButtons, ScrollBarBreadth(), SetAllButtonsDimmed(), SetButtonPositionL(), SetDecreaseButtonsDimmed(), SetDimmed(), SetIncreaseButtonsDimmed(), SetLayoutL(), SetLengthAndModelL(), SetLengthL(), SetModelL(), SetModelThumbPosition(), SetScrollBarObserver(), TEikScrollBarFlags, TOrientation, TPointerDownOn, TPrivateScrollBarFlags, TShaftRedrawRequired, TWhichButtons, ThumbPosition(), iButtons, iDecreaseButtonsEnd, iDecreaseButtonsStart, iIncreaseButtonsEnd, iIncreaseButtonsStart, iLength, iOrientation, iPointerDownOn, iScrollBarDisplayFlags, iScrollBarFlags, iScrollBarObserver

Inherited from MCoeControlObserver:
EEventInteractionRefused, EEventPrepareFocusTransition, EEventRequestCancel, EEventRequestExit, EEventRequestFocus, EEventStateChanged, HandleControlEventL(), TCoeEvent

CEikArrowHeadScrollBar(CCoeControl* aParentWindow);

Description

Constructs an arrow head scroll bar object for the specified window-owning control.

Parameters

CCoeControl* aParentWindow The parent window-owning control.

void ConstructL (MEikScrollBarObserver* aScrollBarObserver,const CCoeControl* aParent, TOrientation aOrientation,TInt aLength,TInt aScrollBarFlags);

Description

Completes construction.

Parameters

MEikScrollBarObserver* aScrollBarObserver The scroll bar observer which is to be informed of scroll events by this scroll bar. const CCoeControl* aParent Parent control for this new scroll bar. TOrientation aOrientation Orientation of the new scroll bar. TInt aLength Length of the scroll bar. TInt aScrollBarFlags An OR-ed combination of TEikScrollbarFlags.

~CEikArrowHeadScrollBar();

Description

Destructor.

void Draw(const TRect& aRect) const;

Description

Draws this scroll bar inside the specified rectangle.

Parameters

const TRect& aRect The area to redraw.

void HandlePointerEventL(const TPointerEvent& aPointerEvent);

Description

Called by the framework to handle pointer events on this CEikArrowHeadScrollBar.

Parameters

const TPointerEvent& aPointerEvent The pointer event to handle.