TextBox

A multi-line text editor component with cursor support and text manipulation features

Extends: VisualElement

Properties

Property	Type	Default	Description
lines	table	{}	Array of text lines
cursorX	number	1	Cursor X position
cursorY	number	1	Cursor Y position (line number)
scrollX	number	0	Horizontal scroll offset
scrollY	number	0	Vertical scroll offset
editable	boolean	true	Whether text can be edited
syntaxPatterns	table	{}	Syntax highlighting patterns
cursorColor	number	nil	Color of the cursor

Functions

Method	Returns	Description
TextBox:addSyntaxPattern	TextBox	Adds a new syntax highlighting pattern
TextBox:removeSyntaxPattern	TextBox	Removes a syntax pattern by index (1-based)
TextBox:clearSyntaxPatterns	TextBox	Clears all syntax highlighting patterns
TextBox:updateViewport	TextBox	Updates the viewport to keep the cursor in view
TextBox:setText	TextBox	Sets the text of the TextBox
TextBox:getText	string	Gets the text of the TextBox

TextBox:addSyntaxPattern(pattern, color)

Adds a new syntax highlighting pattern

Parameters

• pattern string The regex pattern to match
• color number The color to apply

Returns

• TextBox self The TextBox instance

TextBox:removeSyntaxPattern(index)

Removes a syntax pattern by index (1-based)

Parameters

• index number The index of the pattern to remove

Returns

• TextBox self

TextBox:clearSyntaxPatterns()

Clears all syntax highlighting patterns

Returns

• TextBox self

TextBox:updateViewport()

Updates the viewport to keep the cursor in view

Returns

• TextBox self The TextBox instance

TextBox:setText(text)

Sets the text of the TextBox

Parameters

• text string The text to set

Returns

• TextBox self The TextBox instance

TextBox:getText()

Gets the text of the TextBox

Returns

• string text The text of the TextBox