LineEdit

Inherits: Control < CanvasItem < Node < Object

Control that provides single-line string editing.

Description

LineEdit provides a single-line string editor, used for text fields.

It features many built-in shortcuts which will always be available (Ctrl here maps to Command on macOS):

• Ctrl + C: Copy

• Ctrl + X: Cut

• Ctrl + V or Ctrl + Y: Paste/“yank”

• Ctrl + Z: Undo

• Ctrl + Shift + Z: Redo

• Ctrl + U: Delete text from the cursor position to the beginning of the line

• Ctrl + K: Delete text from the cursor position to the end of the line

• Ctrl + A: Select all text

• Up/Down arrow: Move the cursor to the beginning/end of the line

On macOS, some extra keyboard shortcuts are available:

• Ctrl + F: Like the right arrow key, move the cursor one character right

• Ctrl + B: Like the left arrow key, move the cursor one character left

• Ctrl + P: Like the up arrow key, move the cursor to the previous line

• Ctrl + N: Like the down arrow key, move the cursor to the next line

• Ctrl + D: Like the Delete key, delete the character on the right side of cursor

• Ctrl + H: Like the Backspace key, delete the character on the left side of the cursor

• Command + Left arrow: Like the Home key, move the cursor to the beginning of the line

• Command + Right arrow: Like the End key, move the cursor to the end of the line

Properties

Methods

Theme Properties

Signals

• text_change_rejected ( String rejected_substring )

Emitted when appending text that overflows the max_length. The appended text is truncated to fit max_length, and the part that couldn’t fit is passed as the rejected_substring argument.

• text_changed ( String new_text )

Emitted when the text changes.

• text_entered ( String new_text )

Emitted when the user presses @GlobalScope.KEY_ENTER on the LineEdit.

Enumerations

enum Align:

• ALIGN_LEFT = 0 —- Aligns the text on the left-hand side of the LineEdit.

• ALIGN_CENTER = 1 —- Centers the text in the middle of the LineEdit.

• ALIGN_RIGHT = 2 —- Aligns the text on the right-hand side of the LineEdit.

• ALIGN_FILL = 3 —- Stretches whitespaces to fit the LineEdit‘s width.

enum MenuItems:

• MENU_CUT = 0 —- Cuts (copies and clears) the selected text.

• MENU_COPY = 1 —- Copies the selected text.

• MENU_PASTE = 2 —- Pastes the clipboard text over the selected text (or at the cursor’s position).

Non-printable escape characters are automatically stripped from the OS clipboard via String.strip_escapes.

• MENU_CLEAR = 3 —- Erases the whole LineEdit text.

• MENU_SELECT_ALL = 4 —- Selects the whole LineEdit text.

• MENU_UNDO = 5 —- Undoes the previous action.

• MENU_REDO = 6 —- Reverse the last undo action.

• MENU_MAX = 7 —- Represents the size of the MenuItems enum.

Property Descriptions

• Align align

Text alignment as defined in the Align enum.

• bool caret_blink

If true, the caret (visual cursor) blinks.

• float caret_blink_speed

Duration (in seconds) of a caret’s blinking cycle.

• int caret_position

The cursor’s position inside the LineEdit. When set, the text may scroll to accommodate it.

• bool clear_button_enabled

If true, the LineEdit will show a clear button if text is not empty, which can be used to clear the text quickly.

• bool context_menu_enabled

If true, the context menu will appear when right-clicked.

• bool editable

If false, existing text cannot be modified and new text cannot be added.

• bool expand_to_text_length

If true, the LineEdit width will increase to stay longer than the text. It will not compress if the text is shortened.

• int max_length

Maximum amount of characters that can be entered inside the LineEdit. If 0, there is no limit.

When a limit is defined, characters that would exceed max_length are truncated. This happens both for existing text contents when setting the max length, or for new text inserted in the LineEdit, including pasting. If any input text is truncated, the text_change_rejected signal is emitted with the truncated substring as parameter.

Example:

text = "Hello world"
max_length = 5
# `text` becomes "Hello".
max_length = 10
text += " goodbye"
# `text` becomes "Hello good".
# `text_change_rejected` is emitted with "bye" as parameter.

• float placeholder_alpha

Opacity of the placeholder_text. From 0 to 1.

• String placeholder_text

Text shown when the LineEdit is empty. It is not the LineEdit‘s default value (see text).

• Texture right_icon

Sets the icon that will appear in the right end of the LineEdit if there’s no text, or always, if clear_button_enabled is set to false.

• bool secret

If true, every character is replaced with the secret character (see secret_character).

• String secret_character

The character to use to mask secret input (defaults to “*“). Only a single character can be used as the secret character.

• bool selecting_enabled

If false, it’s impossible to select the text using mouse nor keyboard.

• bool shortcut_keys_enabled

If false, using shortcuts will be disabled.

• String text

String value of the LineEdit.

Note: Changing text using this property won’t emit the text_changed signal.

• bool virtual_keyboard_enabled

If true, the native virtual keyboard is shown when focused on platforms that support it.

Method Descriptions

• void append_at_cursor ( String text )

Adds text after the cursor. If the resulting value is longer than max_length, nothing happens.

• void clear ( )

Erases the LineEdit‘s text.

• void delete_char_at_cursor ( )

Deletes one character at the cursor’s current position (equivalent to pressing the Delete key).

• void delete_text ( int from_column, int to_column )

Deletes a section of the text going from position from_column to to_column. Both parameters should be within the text’s length.

• void deselect ( )

Clears the current selection.

• PopupMenu get_menu ( ) const

Returns the PopupMenu of this LineEdit. By default, this menu is displayed when right-clicking on the LineEdit.

Warning: This is a required internal node, removing and freeing it may cause a crash. If you wish to hide it or any of its children, use their CanvasItem.visible property.

• int get_scroll_offset ( ) const

Returns the scroll offset due to caret_position, as a number of characters.

• void menu_option ( int option )

Executes a given action as defined in the MenuItems enum.

• void select ( int from=0, int to=-1 )

Selects characters inside LineEdit between from and to. By default, from is at the beginning and to at the end.

text = "Welcome"
select() # Will select "Welcome".
select(4) # Will select "ome".
select(2, 5) # Will select "lco".

• void select_all ( )

Selects the whole String.

Theme Property Descriptions

• Texture clear

Texture for the clear button. See clear_button_enabled.

• Color clear_button_color

Color used as default tint for the clear button.

• Color clear_button_color_pressed

Color used for the clear button when it’s pressed.

• Color cursor_color

Color of the LineEdit‘s visual cursor (caret).

• StyleBox focus

Background used when LineEdit has GUI focus.

• Font font

Font used for the text.

• Color font_color

Default font color.

• Color font_color_selected

Font color for selected text (inside the selection rectangle).

• Color font_color_uneditable

Font color when editing is disabled.

• int minimum_spaces

Minimum horizontal space for the text (not counting the clear button and content margins). This value is measured in count of space characters (i.e. this amount of space characters can be displayed without scrolling).

• StyleBox normal

Default background for the LineEdit.

• StyleBox read_only

Background used when LineEdit is in read-only mode (editable is set to false).

• Color selection_color

Color of the selection rectangle.