YAxisDragModifier

CalculateScaledRange

protected override IRange CalculateScaledRange(Point currentPoint, Point lastPoint, bool isSecondHalf, IAxis axis)

result = yAxisDragModifier.CalculateScaledRange(currentPoint, lastPoint, isSecondHalf, axis)

When overriden in a derived class, calculates an output IRange to apply to the associated AxisBaseAxis, given the input parameters

currentPoint

The current mouse position

lastPoint

The last mouse position

isSecondHalf

A flag, which determines how the scale operates, e.g. which half of the axis (top or bottom, left or right) was dragged

axis

The axis being operated on

Returns: The output IRange

GetCurrentAxis

protected override IAxis GetCurrentAxis()

result = yAxisDragModifier.GetCurrentAxis()

Gets the IAxis instance, which current modifier is associated with, on the parent UltrachartSurface

GetIsSecondHalf

protected override bool GetIsSecondHalf(Point point, Rect axisBounds, bool isHorizontalAxis)

result = yAxisDragModifier.GetIsSecondHalf(point, axisBounds, isHorizontalAxis)

Gets whether the specified mouse point is within the second (right-most or top-most) half of the Axis bounds

point

The mouse point

axisBounds

The axis bounds

isHorizontalAxis

Value, which indicates whether current axis is horizontal or not

Returns: True if the point is within the second (right-most or top-most) half of the axis bounds, else false

GetUsedCursor

protected override Cursor GetUsedCursor(IAxis axis)

result = yAxisDragModifier.GetUsedCursor(axis)

Depending on axis orientation and AxisAlignment, returns a Cursor to show during mouse-over of the axis

axis

The axis instance

OnModifierMouseDown

public override void OnModifierMouseDown(ModifierMouseArgs e)

yAxisDragModifier.OnModifierMouseDown(e)

Called when a Mouse Button is pressed on the parent UltrachartSurface

e

Arguments detailing the mouse button operation

OnModifierMouseMove

public override void OnModifierMouseMove(ModifierMouseArgs e)

yAxisDragModifier.OnModifierMouseMove(e)

Called when the Mouse is moved on the parent UltrachartSurface

e

Arguments detailing the mouse move operation

OnModifierMouseUp

public override void OnModifierMouseUp(ModifierMouseArgs e)

yAxisDragModifier.OnModifierMouseUp(e)

Called when a Mouse Button is released on the parent UltrachartSurface

e

Arguments detailing the mouse button operation

PerformPan

protected override void PerformPan(Point currentPoint, Point lastPoint)

yAxisDragModifier.PerformPan(currentPoint, lastPoint)

Peforms a pan on the assocaited AxisBase. The pan is considered to be a drag from to

currentPoint

The current mouse point

lastPoint

The last mouse point