IAnnotation

StockSharp.Xaml.Charting.Visuals.Annotations

Defines the interface to an annotation, a custom drawable element over or under the UltrachartSurface

Implementiert: IHitTestable, IPublishMouseEvents, IXmlSerializable

Eigenschaften

DataContext : object

Gets or sets the data context

DragDirections : XyDirection

Limits the Drag direction when dragging the annotation using the mouse, e.g in the X-Direction, Y-Direction or XyDirection. See the XyDirection enumeration for options

IsAttached : bool

Gets or sets whether the current annotation is attached

IsEditable : bool

Gets or sets whether you can interact current annotation

IsHidden : bool

Gets or sets value, indicates whether current annotation was hidden by Hide call

IsResizable : bool

Gets value, indicates whether current instance is resizable

IsSelected : bool

Gets or sets whether the current annotation is selected

ParentSurface : IUltrachartSurface

Gets or sets the parent IUltrachartSurface that this Annotation belongs to

ResizeDirections : XyDirection

Limits the Resize direction when resiaing the annotation using the mouse, e.g in the X-Direction, Y-Direction or XyDirection. See the XyDirection enumeration for options

Services : IServiceContainer

Gets or sets a IServiceContainer container

X1 : IComparable

Gets or sets the X1 Coordinate of the Annotation. For Absolute, this must be a data-value on the X-Axis such as a DateTime for DateTimeAxis, double for NumericAxis or integer index for CategoryDateTimeAxis. For Relative, this must be a double value between 0.0 and 1.0, where 0.0 is the far left of the XAxis and 1.0 is the far right.

X2 : IComparable

Gets or sets the X2 Coordinate of the Annotation. For Absolute, this must be a data-value on the X-Axis such as a DateTime for DateTimeAxis, double for NumericAxis or integer index for CategoryDateTimeAxis. For Relative, this must be a double value between 0.0 and 1.0, where 0.0 is the far left of the XAxis and 1.0 is the far right.

XAxes : IEnumerable<IAxis>

Returns the XAxes on the parent UltrachartSurface

XAxis : IAxis

Gets the XAxis IAxis instance on the parent UltrachartSurface

XAxisId : string

Gets or sets the XAxis Id that this annotation is measured against. See Id

Y1 : IComparable

Gets or sets the Y1 Coordinate of the Annotation. For Absolute, this must be a data-value on the Y-Axis such as a double for NumericAxis For Relative, this must be a double value between 0.0 and 1.0, where 0.0 is the bottom of the YAxis and 1.0 is the top

Y2 : IComparable

Gets or sets the Y2 Coordinate of the Annotation. For Absolute, this must be a data-value on the Y-Axis such as a double for NumericAxis For Relative, this must be a double value between 0.0 and 1.0, where 0.0 is the bottom of the YAxis and 1.0 is the top

YAxes : IEnumerable<IAxis>

Returns the YAxes on the parent UltrachartSurface

YAxis : IAxis

Gets the primary YAxis, this is the first axis in the YAxes collection

YAxisId : string

Gets or sets the YAxis Id that this annotation is measured against. See Id

Methoden

CanMultiSelect(IAnnotation[]) : bool

Check if this annotation can be multiselected along with other annotations.

annotations: Annotations to check against.

CaptureMouse() : bool

Captures the mouse

Drag(double, double)

Raises the DragDelta event, called when a drag operation is in progress and each time the X1 Y1 X2 Y2 points update in the annotation

EndDrag()

Raises the DragEnded event, called when a drag operation ends

GetBasePoints() : Point[]

This method is used in internally by the AnnotationResizeAdorner. Gets the adorner point positions

Hide()

Hides the Annotation by removing adorner markers from the ParentSurface AdornerLayerCanvas and setting Visibility to Collapsed

MoveAnnotation(double, double)

This method is used internally by the AnnotationDragAdorner. Programmatically moves the annotation by an X,Y offset.

offsetX
offsetY

OnAttached()

Called when the Annotation is attached to parent surface

OnDetached()

Called when the Annotation is detached from its parent surface

OnXAxesCollectionChanged(object, NotifyCollectionChangedEventArgs)

Raises notification when parent XAxes changes.

OnYAxesCollectionChanged(object, NotifyCollectionChangedEventArgs)

Raises notification when parent YAxes changes.

Refresh() : bool

Refreshes the annnotation position on the parent UltrachartSurface, without causing a full redraw of the chart

ReleaseMouseCapture()

Releases mouse capture

SetBasePoint(Point, int)

This method is used in internally by the AnnotationResizeAdorner. Programmatically sets an adorner point position

newPoint
index

Show()

Shows annotation which being hidden by Hide call

StartDrag(bool)

Raises the DragStarted event, called when a drag operation starts

Update(ICoordinateCalculator<double>, ICoordinateCalculator<double>)

Updates the coordinate calculators and refreshes the annotation position on the parent UltrachartSurface

xCoordinateCalculator: The XAxis ICoordinateCalculator
yCoordinateCalculator: The YAxis ICoordinateCalculator

Ereignisse

DragDelta : EventHandler<AnnotationDragDeltaEventArgs>

Occurs when current AnnotationBase is dragged or moved

DragEnded : EventHandler<AnnotationDragEventArgs>

Occurs when a Drag or move operation ends

DragStarted : EventHandler<AnnotationDragEventArgs>

Occurs when a Drag or move operation starts

Selected : EventHandler

Occurs when IAnnotation becomes selected.

Unselected : EventHandler

Occurs when IAnnotation becomes unselected.