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# TextBox : VisualElement
A multi-line text editor component with cursor support and text manipulation features
# 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
|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-addsyntaxpattern)|TextBox|Adds a new syntax highlighting pattern
|[TextBox:getText](#textbox-gettext)|string|Gets the text of the TextBox
|[TextBox:setText](#textbox-settext)|TextBox|Sets the text of the TextBox
|[TextBox:updateViewport](#textbox-updateviewport)|TextBox|Updates the viewport to keep the cursor in view
|[TextBox.new](#textbox-new)|TextBox|Creates a new TextBox instance|
|[TextBox:init](#textbox-init-props-basalt)|TextBox|Initializes the TextBox instance|
|[TextBox:addSyntaxPattern](#textbox-addsyntaxpattern-pattern-color)|TextBox|Adds a new syntax highlighting pattern|
|[TextBox:removeSyntaxPattern](#textbox-removesyntaxpattern-index)|TextBox|Removes a syntax pattern by index (1-based)|
|[TextBox:clearSyntaxPatterns](#textbox-clearsyntaxpatterns)|TextBox|Clears all syntax highlighting patterns|
|[TextBox:updateViewport](#textbox-updateviewport)|TextBox|Updates the viewport to keep the cursor in view|
|[TextBox:char](#textbox-char-char)|boolean|Handles character input|
|[TextBox:key](#textbox-key-key)|boolean|Handles key events|
|[TextBox:mouse_scroll](#textbox-mouse-scroll-direction-x-y)|boolean|Handles mouse scroll events|
|[TextBox:mouse_click](#textbox-mouse-click-button-x-y)|boolean|Handles mouse click events|
|[TextBox:paste](#textbox-paste)|-|Handles paste events|
|[TextBox:setText](#textbox-settext-text)|TextBox|Sets the text of the TextBox|
|[TextBox:getText](#textbox-gettext)|string|Gets the text of the TextBox|
|[TextBox:render](#textbox-render)|-|Renders the TextBox with syntax highlighting|
## TextBox.new()
## Protected Functions
Creates a new TextBox instance
|Method|Returns|Description|
|---|---|---|
|TextBox:char|boolean|Handles character input
|TextBox:init|TextBox|Initializes the TextBox instance
|TextBox:key|boolean|Handles key events
|TextBox:mouse_click|boolean|Handles mouse click events
|TextBox:mouse_scroll|boolean|Handles mouse scroll events
|TextBox:render|-|Renders the TextBox with syntax highlighting
### Returns
* `TextBox` `self` The newly created TextBox instance
## TextBox:init(props, basalt)
### Parameters
* `props` `table` The properties to initialize the element with
* `basalt` `table` The basalt instance
### Returns
* `TextBox` `self` The initialized instance
## TextBox:addSyntaxPattern(pattern, color)
Adds a new syntax highlighting pattern
### Parameters
* `pattern` `string` The regex pattern to match
* `color` `colors` The color to apply
* `color` `number` The color to apply
### Returns
* `TextBox` `self` The TextBox instance
## TextBox:getText()
Gets the text of the TextBox
## TextBox:removeSyntaxPattern(index)
Removes a syntax pattern by index (1-based)
### Parameters
* `index` `number` The index of the pattern to remove
### Returns
* `string` `text` The text of the TextBox
* `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:char(char)
### Parameters
* `char` `string` The character that was typed
### Returns
* `boolean` `handled` Whether the event was handled
## TextBox:key(key)
### Parameters
* `key` `number` The key that was pressed
### Returns
* `boolean` `handled` Whether the event was handled
## TextBox:mouse_scroll(direction, x, y)
### Parameters
* `direction` `number` The scroll direction
* `x` `number` The x position of the scroll
* `y` `number` The y position of the scroll
### Returns
* `boolean` `handled` Whether the event was handled
## TextBox:mouse_click(button, x, y)
### Parameters
* `button` `number` The button that was clicked
* `x` `number` The x position of the click
* `y` `number` The y position of the click
### Returns
* `boolean` `handled` Whether the event was handled
## TextBox:paste()
## TextBox:setText(text)
Sets the text of the TextBox
### Parameters
@@ -60,10 +128,11 @@ Sets the text of the TextBox
### Returns
* `TextBox` `self` The TextBox instance
## TextBox:updateViewport()
Updates the viewport to keep the cursor in view
## TextBox:getText()
Gets the text of the TextBox
### Returns
* `TextBox` `self` The TextBox instance
* `string` `text` The text of the TextBox
## TextBox:render()