mirror of
https://github.com/lihop/godot-xterm.git
synced 2024-11-15 06:40:24 +01:00
69 lines
2 KiB
GDScript3
69 lines
2 KiB
GDScript3
|
# Copyright (c) 2018 The xterm.js authors. All rights reserved.
|
||
|
|
# Ported to GDScript by the GodotXterm authors.
|
||
|
|
# License MIT
|
||
|
|
extends "res://addons/godot_xterm/buffer/attribute_data.gd"
|
||
|
|
# CellData - represents a single cell in the terminal buffer.
|
||
|
|
|
||
|
|
|
||
|
|
const Decoder = preload("res://addons/godot_xterm/input/text_decoder.gd")
|
||
|
|
|
||
|
|
const Content = Constants.Content
|
||
|
|
|
||
|
|
# Helper to create CellData from CharData
|
||
|
|
static func from_char_data(value):
|
||
|
|
# Workaround as per: https://github.com/godotengine/godot/issues/19345#issuecomment-471218401
|
||
|
|
var char_data = load("res://addons/godot_xterm/buffer/cell_data.gd").new()
|
||
|
|
char_data.set_from_char_data(value)
|
||
|
|
return char_data
|
||
|
|
|
||
|
|
|
||
|
|
# Primitives from terminal buffer
|
||
|
|
var content = 0
|
||
|
|
var combined_data = ''
|
||
|
|
|
||
|
|
|
||
|
|
# Whether cell contains a combined string
|
||
|
|
func is_combined() -> int:
|
||
|
|
return content & Content.IS_COMBINED_MASK
|
||
|
|
|
||
|
|
|
||
|
|
func get_width() -> int:
|
||
|
|
return content >> Content.WIDTH_SHIFT
|
||
|
|
|
||
|
|
|
||
|
|
func get_chars() -> String:
|
||
|
|
if content & Content.IS_COMBINED_MASK:
|
||
|
|
return combined_data
|
||
|
|
elif content & Content.CODEPOINT_MASK:
|
||
|
|
return char(content & Content.CODEPOINT_MASK)
|
||
|
|
else:
|
||
|
|
return Constants.NULL_CELL_CHAR
|
||
|
|
|
||
|
|
func get_code() -> int:
|
||
|
|
if is_combined():
|
||
|
|
return combined_data.ord_at(combined_data.length() - 1)
|
||
|
|
else:
|
||
|
|
return content & Content.CODEPOINT_MASK
|
||
|
|
|
||
|
|
|
||
|
|
func set_from_char_data(value) -> void:
|
||
|
|
var attr: int = value[Constants.CHAR_DATA_ATTR_INDEX]
|
||
|
|
var character: String = value[Constants.CHAR_DATA_CHAR_INDEX]
|
||
|
|
var width: int = value[Constants.CHAR_DATA_WIDTH_INDEX]
|
||
|
|
var code: int = value[Constants.CHAR_DATA_CODE_INDEX]
|
||
|
|
|
||
|
|
fg = attr
|
||
|
|
bg = 0
|
||
|
|
# combined strings need special treatment. Javascript uses utf16 for strings
|
||
|
|
# whereas Godot uses utf8, therefore we don't need any of the special
|
||
|
|
# handling of surrogates in the original xterm.js code.
|
||
|
|
if character.length() >= 2:
|
||
|
|
combined_data = character
|
||
|
|
content = Content.IS_COMBINED_MASK | (width << Content.WIDTH_SHIFT)
|
||
|
|
else:
|
||
|
|
content = (character.ord_at(0) if character.length() else 0) | (width << Content.WIDTH_SHIFT)
|
||
|
|
|
||
|
|
|
||
|
|
func get_as_char_data():
|
||
|
|
return [fg, get_chars(), get_width(), get_code()]
|