ViewportManagerBase

IsAttached : bool

Gets the value indicating whether a ViewportManagerBase has the UltrachartSurface attached to.

IsSuspended : bool

Gets a value indicating whether updates for the target are currently suspended

Services : IServiceContainer

Gets the ServiceContainer which provides access to services throughout Ultrachart. ServiceContainers are created one per UltrachartSurface instance, and shared between peripheral components such as AxisBase, BaseRenderableSeries, ChartModifierBase instances. For a full list of available services, see the remarks on ServiceContainer

AnimateZoomExtents(TimeSpan)

Zooms to extents with the specified animation duration

duration

The duration of animation when zooming to extents

AnimateZoomExtentsX(TimeSpan)

Zooms the chart to the extents of the data in the X-Direction

duration

AnimateZoomExtentsY(TimeSpan)

Zooms the chart to the extents of the data in the Y-Direction, accounting for the current data in view in the X-direction

duration

AttachUltrachartSurface(IUltrachartSurface)

Called when the ViewportManagerBase is attached to a parent UltrachartSurface

scs

The UltrachartSurface instance

CalculateAutoRange(IAxis) : IRange

Overridden by derived types, called when the parent UltrachartSurface requests to perform autoranging. The Range returned by this method will be applied to the chart on render

axis

The axis

戻り値: The new VisibleRange for the YAxis

CalculateNewXAxisRange(IAxis) : IRange

Called by the UltrachartSurface during render to calculate the new XAxis VisibleRange. Override in derived types to return a custom value

xAxis

戻り値: The new IRange VisibleRange for the axis

CalculateNewYAxisRange(IAxis, RenderPassInfo) : IRange

Called by the UltrachartSurface during render to calculate the new YAxis VisibleRange. Override in derived types to return a custom value

yAxis

The YAxis to calculate for

renderPassInfo

The current RenderPassInfo containing render data

戻り値: The new IRange VisibleRange for the axis

DecrementSuspend()

Called by IUpdateSuspender each time a target suspender is disposed. When the final target suspender has been disposed, ResumeUpdates is called

DetachUltrachartSurface()

Called when the ViewportManagerBase is detached from a parent UltrachartSurface

InvalidateElement()

Asynchronously requests that the element redraws itself plus children. Will be ignored if the element is ISuspendable and currently IsSuspended (within a SuspendUpdates/ResumeUpdates call)

InvalidateParentSurface(RangeMode)

Triggers a redraw on the parent surface with the specified RangeMode

rangeMode

The RangeMode specifying how to redraw the parent surface

OnCalculateNewXRange(IAxis) : IRange

Overridden by derived types, called when the parent UltrachartSurface requests the XAxis VisibleRange. The Range returned by this method will be applied to the chart on render

xAxis

The XAxis

戻り値: The new VisibleRange for the XAxis

OnCalculateNewYRange(IAxis, RenderPassInfo) : IRange

Overridden by derived types, called when the parent UltrachartSurface requests a YAxis VisibleRange. The Range returned by this method will be applied to the chart on render

yAxis

The YAxis

renderPassInfo

The render pass info.

戻り値: The new VisibleRange for the YAxis

OnInvalidateParentSurface(DependencyPropertyChangedEventArgs)

Raises the InvalidateParentSurface event.

e

The DependencyPropertyChangedEventArgs instance containing the event data.

OnParentSurfaceRendered(IUltrachartSurface)

Called when the IUltrachartSurface is rendered.

ultraChartSurface

The UltrachartSurface instance

OnVisibleRangeChanged(IAxis)

Called when the VisibleRange changes for an axis. Override in derived types to get a notification of this occurring

axis

The IAxisinstance

ResumeUpdates(IUpdateSuspender)

Resumes updates on the target, intended to be called by IUpdateSuspender

suspender

SuspendUpdates() : IUpdateSuspender

Suspends drawing updates on the target until the returned object is disposed, when a final draw call will be issued

戻り値: The disposable Update Suspender

ZoomExtents()

Zooms the chart to the extents of the data, plus any X or Y Grow By fraction set on the X and Y Axes

ZoomExtentsX()

Zooms the chart to the extents of the data in the X-Direction

ZoomExtentsY()

Zooms the chart to the extents of the data in the Y-Direction, accounting for the current data in view in the X-direction