mirror of
https://github.com/lihop/godot-xterm.git
synced 2024-09-20 16:36:19 +02:00
0d4e10f5ab
Most notably: - Reflow is now working. Terminal size will fill the window and cols/rows will be resized/calculated based on window and font size. - Added support for different fonts (i.e. bold, italic, bolditalic). - Enabled blinking characters. - Adde more tests and caught a few subtle bugs. - Removed renderer code (which was part of xterm.js) and just doing naive rendering in terminal.gd, but it seems to perform a lot faster. Still not working completely: - vim (some weirdness going on). - vttest (more weirdness). Todo: - Fix the above. - Draw the cursor! - Improve performance. Performance is still not great. The terminal becomes unusable when running `yes` or `cmatrix -r`.
136 lines
3.8 KiB
GDScript
136 lines
3.8 KiB
GDScript
# Copyright (c) 2019 The xterm.js authors. All rights reserved.
|
|
# Ported to GDScript by the GodotXterm authors.
|
|
# License MIT
|
|
extends Reference
|
|
|
|
|
|
# Max value supported for a single param/subparam (clamped to positive int32 range).
|
|
const MAX_VALUE = 0x7FFFFFFF;
|
|
# Max allowed subparams for a single sequence (hardcoded limitation).
|
|
const MAX_SUBPARAMS = 256;
|
|
|
|
var params = []
|
|
var length = 0
|
|
|
|
var sub_params = []
|
|
var sub_params_length = 0
|
|
var _max_length
|
|
var _max_sub_params_length
|
|
var sub_params_idx = []
|
|
var _reject_digits = false
|
|
var _reject_sub_digits = false
|
|
var digit_is_sub = false
|
|
|
|
|
|
static func from_array(values: Array):
|
|
# Workaround as per: https://github.com/godotengine/godot/issues/19345#issuecomment-471218401
|
|
var params = load("res://addons/godot_xterm/parser/params.gd").new()
|
|
if values.empty():
|
|
return params
|
|
# skip leading sub params
|
|
for i in range(values.size()):
|
|
var value = values[i]
|
|
if typeof(value) == TYPE_ARRAY:
|
|
if i == 0:
|
|
# skip leading sub params
|
|
continue
|
|
else:
|
|
for sub_param in value:
|
|
params.add_sub_param(sub_param)
|
|
else:
|
|
params.add_param(value)
|
|
return params
|
|
|
|
|
|
func _init(max_length: int = 32, max_sub_params_length: int = 32):
|
|
_max_length = max_length
|
|
_max_sub_params_length = max_sub_params_length
|
|
|
|
if (max_sub_params_length > MAX_SUBPARAMS):
|
|
push_error("max_sub_params_length must not be greater than 256")
|
|
|
|
params.resize(max_length)
|
|
sub_params.resize(max_sub_params_length)
|
|
sub_params_idx.resize(max_length)
|
|
|
|
|
|
# Gets param at `index` from param if it exists and is non-zero.
|
|
# Otherwise returns `default` (which is zero anyway due to zero default
|
|
# mode (ZDM), but allows the caller to specify a non-zero default value).
|
|
func get_param(index: int, default = 0) -> int:
|
|
if index < params.size() and params[index]:
|
|
return params[index]
|
|
else:
|
|
return default
|
|
|
|
|
|
func add_param(value: int):
|
|
digit_is_sub = false
|
|
if length >= _max_length:
|
|
_reject_digits = true
|
|
return
|
|
if value < -1:
|
|
push_error('values lesser than -1 are not allowed')
|
|
sub_params_idx[length] = sub_params_length << 8 | sub_params_length
|
|
params[length] = MAX_VALUE if value > MAX_VALUE else value
|
|
length += 1
|
|
|
|
|
|
# Add a sub parameter value.
|
|
# The sub parameter is automatically associated with the last parameter value.
|
|
# Thus it is not possible to add a subparameter without any parameter added yet.
|
|
# `Params` only stores up to `subParamsLength` sub parameters, any later
|
|
# sub parameter will be ignored.
|
|
func add_sub_param(value: int):
|
|
digit_is_sub = true
|
|
if !length:
|
|
return
|
|
if _reject_digits or sub_params_length >= _max_sub_params_length:
|
|
_reject_sub_digits = true
|
|
return
|
|
if value < -1:
|
|
push_error('values lesser than -1 are not allowed')
|
|
sub_params[sub_params_length] = MAX_VALUE if value > MAX_VALUE else value
|
|
sub_params_length += 1
|
|
sub_params_idx[length - 1] += 1
|
|
|
|
|
|
# Whether parameter at index `idx` has sub parameters.
|
|
func has_sub_params(idx: int) -> bool:
|
|
return (sub_params_idx[idx] & 0xFF) - (sub_params_idx[idx] >> 8) > 0
|
|
|
|
|
|
func get_sub_params(idx: int):
|
|
var start = sub_params_idx[idx] >> 8
|
|
var end = sub_params_idx[idx] & 0xFF
|
|
if end - start > 0:
|
|
return sub_params.slice(start, end - 1)
|
|
else:
|
|
return null
|
|
|
|
|
|
func add_digit(value: int):
|
|
var _length = sub_params_length if digit_is_sub else length
|
|
if _reject_digits or (not _length) or (digit_is_sub and _reject_sub_digits):
|
|
return
|
|
var store = sub_params if digit_is_sub else params
|
|
var cur = store[_length - 1]
|
|
store[_length - 1] = min(cur * 10 + value, MAX_VALUE) if ~cur else value
|
|
|
|
|
|
func to_array():
|
|
var res = []
|
|
for i in range(length):
|
|
res.append(params[i])
|
|
var start = sub_params_idx[i] >> 8
|
|
var end = sub_params_idx[i] & 0xff
|
|
if end - start > 0:
|
|
res.append(sub_params.slice(start, end - 1))
|
|
return res
|
|
|
|
func reset():
|
|
length = 0
|
|
sub_params_length = 0
|
|
_reject_digits = false
|
|
_reject_sub_digits = false
|
|
digit_is_sub = false
|