C

ReparentStripeHandler

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Default implementation of the IReparentStripeHandler interface.
ImplementsInheritance Hierarchy

Remarks

This implementation allows to specify a maximal nesting depth for reparent operations.

Members

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Constructors

ReparentStripeHandler

()
Initializes a new instance of the ReparentStripeHandler class.

Parameters

Properties

maxColumnLevel

: number
Gets or sets the maximum nesting level the column hierarchy may acquire during a reparent gesture.
Note that it is always possible to decrease the nesting depth, even if the resulting depth would still be too high. This allows to interactively reduce an invalid nesting depth in multiple steps. The default value is 0x7FFFFFFF, which effectively means an unlimited nesting depth.
final

maxRowLevel

: number
Gets or sets the maximum nesting level the row hierarchy may acquire during a reparent gesture.
Note that it is always possible to decrease the nesting depth, even if the resulting depth would still be too high. This allows to interactively reduce an invalid nesting depth in multiple steps. The default value is 0x7FFFFFFF, which effectively means an unlimited nesting depth.
final

Methods

adjustSize

(
context: IInputModeContext
stripe: IStripe
newParent: IStripe
reparentPosition: StripeReparentPolicy
index: number
originalStripeSize: number
originalParentSize: number
)
protected
Adjust the size of the source or the target stripe.
This implementation adjusts the size of stripe to Math.Max(originalStripeSize, originalParentSize) if reparentPosition is an ADD_CHILD operation
protected

Parameters

context: IInputModeContext
The context that provides information about the user input.
stripe: IStripe
The stripe that will be reparented.
newParent: IStripe
The potential new parent.
reparentPosition: StripeReparentPolicy
Where to place the stripe as a result of the gesture that triggered the reparent operation.
index: number
The index where the stripe should be inserted.
originalStripeSize: number
The original size of stripe
originalParentSize: number
The original size of newParent

isValidParent

(
context: IInputModeContext
stripe: IStripe
newParent: IStripe
index: number
reparentPosition: StripeReparentPolicy
): boolean
Checks the constraints imposed by maxRowLevel or maxColumnLevel for a valid gesture.

Parameters

context: IInputModeContext
The context that provides information about the user input.
stripe: IStripe
The stripe that will be reparented.
newParent: IStripe
The potential new parent.
index: number
The index where the stripe would be reparented
reparentPosition: StripeReparentPolicy
Where to place the stripe as a result of the gesture that would be used for the reparent operation.

Return Value

boolean
true iff the resulting nesting depth is smaller than maxRowLevel or maxColumnLevel, or if the nesting depth would not increase by the operation.

reparent

(
context: IInputModeContext
stripe: IStripe
newParent: IStripe
index: number
reparentPosition: StripeReparentPolicy
)
Performs the actual reparenting after the reparent gesture has been finalized.
This implementation adjusts the size of the moved and/or the target stripe by calling adjustSize.

Parameters

context: IInputModeContext
The context that provides information about the user input.
stripe: IStripe
The stripe that will be reparented.
newParent: IStripe
The potential new parent.
index: number
The index where the stripe should be inserted.
reparentPosition: StripeReparentPolicy
Where to place the stripe as a result of the gesture that triggered the reparent operation.

shouldReparent

(context: IInputModeContext, stripe: IStripe): boolean
Determines whether the user may detach the given stripe from its current parent in order to reparent it.

Parameters

context: IInputModeContext
The context that provides information about the user input.
stripe: IStripe
The stripe that is about to be detached from its current parent.

Return Value

boolean
This implementation returns always true.