Libraries.Interface.Undo.TextBoxEditManager - Quorum Programming Language

Libraries.Interface.Undo.TextBoxEditManager Documentation

Inherits from: Libraries.Interface.Events.TextChangeListener, Libraries.Language.Object, Libraries.Interface.Undo.EditManager

Summary

Variable Summary Table

Variables	Description
integer SPECIAL_STATE	This state is used for saving more complex actions such as adding multiple indentations to the text box. If the text box is set to this the text box wont leave it until it is switched out to the RESET_STATE
integer NULL_STATE	This state is used to tell the edit manager to ignore any upcoming changes to the TextBox. The manager will not leave this state until set to another
integer OFF_STATE	This state is used for turning off the manager. This means that the manager will no longer have any edits and will try to make any new ones. Different from the NULL_STATE in that the OFF_STATE is mainly for use in TextBoxes that do need Undo functionality
integer ADD_SPACE_STATE	This state is for when whitespace is being added to the TextBox
integer RESET_STATE	The manager will be in this state when it is ready for changes to the TextBox.
integer DELETE_SPACE_STATE	This state is for when whitespace is being deleted from the TextBox
integer DELETE_WORD_STATE	This state is for when a word is being deleted from the TextBox
integer ADD_WORD_STATE	This state is for when a word is being added to the TextBox

Actions Summary Table

Actions	Description
Add(Libraries.Interface.Undo.Edit undo)	The Add(Edit) action adds an item to the undo list.
CanRedo()	This action checks to see if there is any items that can be redone.
CanUndo()	If true is passed this will empty the manager and it will no longer save any states until called again with false
Compare(Libraries.Language.Object object)	This action compares two object hash codes and returns an integer.
Empty()	This action empties the EditManager of all edits.
Equals(Libraries.Language.Object object)	This action determines if two objects are equal based on their hash code values.
GetCurrentState()	This state is for when whitespace is being added to the TextBox
GetHashCode()	This action gets the hash code for an object.
GetRedoCount()	This action returns how many edits there are in the redo list.
GetTextBox()	This state is for when a word is being deleted from the TextBox
GetUndoCount()	This action returns how many edits there are in the undo list.
Redo()	do the un
Reset()	Saves the current Edit and sets the state to RESET
SetOff(boolean off)	If true is passed this will empty the manager and it will no longer save any states until called again with false
SetSpecialAction(boolean start)	do the re
SetTextBox(Libraries.Interface.Controls.TextBox newBox)	This state is for when whitespace is being deleted from the TextBox
SetToIgnore(boolean ignore)	If true then the Edit Manager will be in the NULL_STATE and will ignore any text change events until set to false
TextChanged(Libraries.Interface.Events.TextChangeEvent event)	Saves the current Edit and sets the state to RESET
Undo()	This state is for when a word is being added to the TextBox

Actions Documentation

Add(Libraries.Interface.Undo.Edit undo)

The Add(Edit) action adds an item to the undo list. The redo list cannot be directly added to and is, instead, controlled by undoing.

Example Code

use Libraries.Interface.Undo.EditManager
        use Libraries.Interface.Undo.Edit

        EditManager edits
        Edit edit
        edits:Add(edit)
        edits:Undo()

Parameters

Libraries.Interface.Undo.Edit: The Edit object we are asking to be managed by the EditManager.

CanRedo()

This action checks to see if there is any items that can be redone. If so, it returns true.

Example Code

use Libraries.Interface.Undo.EditManager
        use Libraries.Interface.Undo.Edit

        EditManager edits
        Edit edit
        edits:Add(edit)
        output edits:CanRedo()

Return

boolean: whether we can redo

CanUndo()

If true is passed this will empty the manager and it will no longer save any states until called again with false

Return

boolean:

Compare(Libraries.Language.Object object)

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

Object o
        Object t
        integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)

Parameters

Libraries.Language.Object: The object to compare to.

Return

integer: The Compare result, Smaller, Equal, or Larger.

Empty()

This action empties the EditManager of all edits. In the process, it clears the current state and calls dispose on each edit to ensure it has the opportunity to free any resources.

Equals(Libraries.Language.Object object)

This action determines if two objects are equal based on their hash code values.

Example Code

use Libraries.Language.Object
        use Libraries.Language.Types.Text
        Object o
        Text t
        boolean result = o:Equals(t)

Parameters

Libraries.Language.Object: The to be compared.

Return

boolean: True if the hash codes are equal and false if they are not equal.

GetCurrentState()

This state is for when whitespace is being added to the TextBox

Return

integer:

GetHashCode()

This action gets the hash code for an object.

Example Code

Object o
        integer hash = o:GetHashCode()

Return

integer: The integer hash code of the object.

GetRedoCount()

This action returns how many edits there are in the redo list.

Example Code

use Libraries.Interface.Undo.EditManager
        use Libraries.Interface.Undo.Edit

        EditManager edits
        Edit edit
        edits:Add(edit)
        output edits:GetRedoCount()

Return

integer: how many edits are in the redo list

GetTextBox()

This state is for when a word is being deleted from the TextBox

Return

Libraries.Interface.Controls.TextBox:

GetUndoCount()

This action returns how many edits there are in the undo list.

Example Code

use Libraries.Interface.Undo.EditManager
        use Libraries.Interface.Undo.Edit

        EditManager edits
        Edit edit
        edits:Add(edit)
        output edits:GetUndoCount()

Return

integer: how many edits are in the undo list

Redo()

do the un

Reset()

Saves the current Edit and sets the state to RESET

SetOff(boolean off)

If true is passed this will empty the manager and it will no longer save any states until called again with false

Parameters

SetSpecialAction(boolean start)

do the re

Parameters

SetTextBox(Libraries.Interface.Controls.TextBox newBox)

This state is for when whitespace is being deleted from the TextBox

Parameters

Libraries.Interface.Controls.TextBox

SetToIgnore(boolean ignore)

If true then the Edit Manager will be in the NULL_STATE and will ignore any text change events until set to false

Parameters

TextChanged(Libraries.Interface.Events.TextChangeEvent event)

Saves the current Edit and sets the state to RESET

Parameters

Libraries.Interface.Events.TextChangeEvent

Undo()

This state is for when a word is being added to the TextBox