FieldUndo

MacroModule

genre	Fields
author	Horst Hahn
package	MeVisLab/Standard
definition	helpers.def
see also	SettingsManager, FieldIterator
keywords	fields, changes, history

Purpose

The module FieldUndo provides simple undo and redo functionality to single fields.

Usage

To facilitate the undo and redo, simply connect an arbitrary field in both directions to the value field of the FieldUndo module.

Windows

Default Panel

Parameter Fields

Field Index

History Size: Integer

historySizeMax: Integer

Index: Integer

Redo: Trigger

Size: Integer

Undo: Trigger

Value: String

Visible Fields

Value

name: value, type: String

Sets and shows the value. To be connected in both directions to the field that should have the undo/redo functionality.

History Size

name: historySize, type: Integer, default: 20, minimum: 1, maximum: :field:`historySizeMax`

Sets the maximum size of the undo history.

Size

name: size, type: Integer, default: 0

Shows the current number of stored undo steps.

Index

name: index, type: Integer, default: 0, minimum: 0, maximum: 0

Sets the index to a specific value in the history.

Undo

name: undo, type: Trigger

If pressed, the previous value is set to the value field.

Redo

name: redo, type: Trigger

If pressed, the next available value is set to the value field.

Hidden Fields

historySizeMax

name: historySizeMax, type: Integer, default: 100