NScrollAndZoomToolBase Class Members

Nevron.Nov.UI Namespace / NScrollAndZoomToolBase Class

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NScrollAndZoomToolBase Class Members

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The following tables list the members exposed by NScrollAndZoomToolBase.

Public Fields

	Name	Description
	ActivateDelayProperty	Reference to the ActivateDelay property.
	AllowAnchorScrollingProperty	Reference to the AllowAnchorScrolling property.
	AllowWheelScrollingProperty	Reference to the AllowWheelScrolling property.
	AllowWheelZoomingProperty	Reference to the AllowWheelZooming property.
	DeactiveDelayProperty	Reference to the DeactiveDelay property.
	DefaultScrollVerticalProperty	Reference to the DefaultScrollVertical property.
	FlipScrollDirectionModifierKeyProperty	Reference to the FlipScrollDirectionModifierKey property.
	NoScrollDistanceProperty	Reference to the NoScrollDistance property.
	NScrollAndZoomToolBaseSchema	Schema associated with NScrollAndZoomToolBase
	ScrollByDefaultProperty	Reference to the ScrollByDefault property.
	TimeProperty	Reference to the Time property.
	ToggleScrollZoomModifierKeyProperty	Reference to the ToggleScrollZoomModifierKey property.
	UnitScrollDistanceProperty	Reference to the UnitScrollDistance property.
	ZoomToMouseCursorProperty	Reference to the ZoomToMouseCursor property.

Protected Fields

	Name	Description
	ArxC
	brxC
	vQxC
	WQxC
	xQxC
	YQxC

Public Properties

	Name	Description
	ActivateDelay	Controls the delay which must ellapse, before the tool can be activated again (in milliseconds). By default set to 500.
	AllowAnchorScrolling	Specifies whether anchor scrolling is allowed.
	AllowWheelScrolling	Specifies whether wheel scrolling is allowed
	AllowWheelZooming	Specifies whether wheel zooming is allowed
	DeactiveDelay	Controls the delay which must ellapse, before the tool can be deactivated (in milliseconds). By default set to 500.
	DefaultScrollVertical	Gets or sets whether to perform vertical or horizontal scrolling when the mouse wheel is rotated. By default set to true (e.g. scroll vertically)
	FlipScrollDirectionModifierKey	Gets or sets the modifier key, which flips the wheel scroll direction. By default the tool will scroll either horizontally or vertically as specified by the DefaultScrollVertical property. By default set to Shift.
	NoScrollDistance	Controls the distance between the start and current mouse position below which no scolling is performed
	OwnerViewportBase	Safely gets the owner viewport base.
	ScrollByDefault	When set to true the tool will scroll the view by default, otherwise it will zoom it. Use the ToggleScrollZoomModifierKey to switch to the other action). By default true.
	Time	Controls the speed of the anchor scrolling. Measured in milliseconds. By default set to 50.
	ToggleScrollZoomModifierKey	Gets or sets the modifier key, which when pressed, toggles wheel zooming and scrolling. Whether zooming or scrolling is performed by default is specified by the ScrollByDefault property. By default set to Control.
	UnitScrollDistance	Controls the distance between the start and current mouse position for which the tool must perform a single unit scroll. Measured in pixels.
	ZoomToMouseCursor	Gets or sets whether to zoom to the the mouse cursor center. When set to true, the zooming will preserve the current mouse position projection in viewport coordinates. When set to false, the zooming will preserve the current viewport center. By default set to true.

Public Methods

	Name	Description
	CanActivate	Overloaded. Overridden. Overriden to block activation, if the ActivateDelay period has not expired
	CanDeactivate	Overloaded. Overridden. Overriden to block deactivation, if the DeactiveDelay period has not expired
	OnMouseWheel	Overridden. Handler for the NMouse.WheelEvent event.

Protected Methods

	Name	Description
	CanZoom	Determines whether zooming can be performed at all.
	DoScrollInDirection	Must override to scroll the owner element in the specified direction.
	DoWheelScroll	Performs wheel scrolling
	DoWheelZoom	Performs wheel zooming, if allowed and returns true if zooming is performed
	DoZoomIn	Overloaded. Must override to ZoomIn the owner element.
	DoZoomOut	Overloaded. Must override to ZoomOut the owner element.
	GetActiveCursorAndTooltip	Overridden. Overriden to define the anchor scrolling cursor.
	OnAborted	Overridden. Overriden to stop the anchor scrolling feature
	OnActivated	Overridden. Overriden to start the anchor scrolling feature
	OnDeactivated	Overridden. Overriden to stop the anchor scrolling feature
	OnPanAndZoomControlPrePaint
	OnScrollTimerTick	Called when the internal scroll timer ticks.
	OperatesInWindowArea	Overridden. Overriden to return true.
	StartAnchorScrolling	Starts the anchor scrollings
	StopAnchorScrolling	Stops the anchor scrolling

See Also

Reference

NScrollAndZoomToolBase Class
Nevron.Nov.UI Namespace

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