Class DragAutoScroll

Namespace

SharpConsoleUI.Helpers

Assembly

SharpConsoleUI.dll

Pure step computation for drag-select autoscroll. Given the cursor's control-relative Y, the viewport height in rows, and the frame's elapsed time, returns the signed number of rows to scroll this frame. Distance-accelerated and time-normalized, with a fractional carry so speed stays smooth at any frame rate. No clock, no threads — fully unit-testable.

public static class DragAutoScroll

Inheritance

object

DragAutoScroll

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

ComputeStep(int, int, double, ref double)

Computes the rows to scroll this frame (signed; negative = up, positive = down, 0 = none).

public static int ComputeStep(int dragRelativeY, int viewportHeightRows, double elapsedMs, ref double carry)

Parameters

dragRelativeY int

Last drag Y in control-relative rows (may be <0 or ≥ viewport height).

viewportHeightRows int

The control's visible viewport height, in rows.

elapsedMs double

Milliseconds elapsed since the previous frame.

carry double

Sub-row remainder carried across frames. Reset to 0 when in-bounds.

Returns

int