godot-xterm/addons/godot_xterm/buffer/constants.gd

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2020-05-10 12:56:49 +02:00
# Copyright (c) 2019 The xterm.js authors. All rights reserved.
# Ported to GDScript by the GodotXterm authors.
# License MIT
extends Reference
const DEFAULT_COLOR = 256
const DEFAULT_ATTR = (0 << 18) | (DEFAULT_COLOR << 9) | (256 << 0)
const CHAR_DATA_ATTR_INDEX = 0
const CHAR_DATA_CHAR_INDEX = 1
const CHAR_DATA_WIDTH_INDEX = 2
const CHAR_DATA_CODE_INDEX = 3
# Null cell - a real empty cell (containing nothing).
# Note that code should always be 0 for a null cell as
# several test condition of the buffer line rely on this.
const NULL_CELL_CHAR = ''
const NULL_CELL_WIDTH = 1
const NULL_CELL_CODE = 0
# Whitespace cell.
# This is meant as a replacement for empty cells when needed
# during rendering lines to preserve correct alignment.
const WHITESPACE_CELL_CHAR = ' '
const WHITESPACE_CELL_WIDTH = 1
const WHITESPACE_CELL_CODE = 32
# Bitmasks for accessing data in `content`.
enum Content {
CODEPOINT_MASK = 0x1FFFFF
IS_COMBINED_MASK = 0x200000
HAS_CONTENT_MASK = 0x3FFFFF
WIDTH_MASK = 0xC00000
WIDTH_SHIFT = 22
}
enum Attributes {
# bit 1..8 blue in RGB, color in P256 and P16
BLUE_MASK = 0xFF
BLUE_SHIFT = 0
PCOLOR_MASK = 0xFF
PCOLOR_SHIFT = 0
# bit 9..16 green in RGB
GREEN_MASK = 0xFF00
GREEN_SHIFT = 8
# bit 17..24 red in RGB
RED_MASK = 0xFF0000
RED_SHIFT = 16
# bit 25..26 color mode: DEFAULT (0) | P16 (1) | P256 (2) | RGB (3)
CM_MASK = 0x3000000
CM_DEFAULT = 0
CM_P16 = 0x1000000
CM_P256 = 0x2000000
CM_RGB = 0x3000000
# bit 1..24 RGB room
RGB_MASK = 0xFFFFFF
}
enum FgFlags {
# bit 27..31 (32th bit unused)
INVERSE = 0x4000000
BOLD = 0x8000000
UNDERLINE = 0x10000000
BLINK = 0x20000000
INVISIBLE = 0x40000000
}
enum BgFlags {
# bit 27..32 (upper 3 unused)
ITALIC = 0x4000000
DIM = 0x8000000
HAS_EXTENDED = 0x10000000
}
enum UnderlineStyle {
NONE
SINGLE
DOUBLE
CURLY
DOTTED
DASHED
}
enum CursorStyle {
BLOCK
UNDERLINE
BAR
}
enum BellStyle {
NONE
VISUAL
SOUND
BOTH
}