import types/color
import utils/strwidth
type
FormatFlags* = enum
ffBold
ffItalic
ffUnderline
ffReverse
ffStrike
ffOverline
ffBlink
Format* = object
fgcolor*: CellColor
bgcolor*: CellColor
flags*: set[FormatFlags]
SimpleFormatCell* = object
format*: Format
pos*: int
SimpleFlexibleLine* = object
str*: string
formats*: seq[SimpleFormatCell]
SimpleFlexibleGrid* = seq[SimpleFlexibleLine]
FixedCell* = object
str*: string
format*: Format
FixedGrid* = object
width*, height*: int
cells*: seq[FixedCell]
proc `[]=`*(grid: var FixedGrid; i: int; cell: FixedCell) = grid.cells[i] = cell
proc `[]=`*(grid: var FixedGrid; i: BackwardsIndex; cell: FixedCell) =
grid.cells[i] = cell
proc `[]`*(grid: var FixedGrid; i: int): var FixedCell = grid.cells[i]
proc `[]`*(grid: var FixedGrid; i: BackwardsIndex): var FixedCell =
grid.cells[i]
proc `[]`*(grid: FixedGrid; i: int): FixedCell = grid.cells[i]
proc `[]`*(grid: FixedGrid; i: BackwardsIndex): FixedCell = grid.cells[i]
proc len*(grid: FixedGrid): int = grid.cells.len
proc high*(grid: FixedGrid): int = grid.cells.high
iterator items*(grid: FixedGrid): FixedCell {.inline.} =
for cell in grid.cells:
yield cell
const FormatCodes*: array[FormatFlags, tuple[s, e: uint8]] = [
ffBold: (1u8, 22u8),
ffItalic: (3u8, 23u8),
ffUnderline: (4u8, 24u8),
ffReverse: (7u8, 27u8),
ffStrike: (9u8, 29u8),
ffOverline: (53u8, 55u8),
ffBlink: (5u8, 25u8),
]
func newFixedGrid*(w: int; h: int = 1): FixedGrid =
return FixedGrid(width: w, height: h, cells: newSeq[FixedCell](w * h))
func width*(cell: FixedCell): int =
return cell.str.width()
# Get the first format cell after pos, if any.
func findFormatN*(line: SimpleFlexibleLine; pos: int): int =
var i = 0
while i < line.formats.len:
if line.formats[i].pos > pos:
break
inc i
return i
func findFormat*(line: SimpleFlexibleLine; pos: int): SimpleFormatCell =
let i = line.findFormatN(pos) - 1
if i != -1:
result = line.formats[i]
else:
result.pos = -1
func findNextFormat*(line: SimpleFlexibleLine; pos: int): SimpleFormatCell =
let i = line.findFormatN(pos)
if i < line.formats.len:
result = line.formats[i]
else:
result.pos = -1