Modern Tui TuiCanvas

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TuiCanvas

Holds a braille drawing surface with a grid of 2 by 4 dots in every cell.

Syntax

type TuiCanvas
    declare constructor( byval cols as int32, byval rows as int32 )
    declare sub Dot( byval x as int32, byval y as int32, byval c as TuiColor )
    ...
end type

Description

A braille sub-cell drawing surface. Each terminal cell holds a 2x4 dot grid, so a canvas sized in CELLS gives you four times the vertical resolution. The block uses the HISTORICAL braille dot order, which is not raster order -- Pattern exposes the byte if you want to check.

Example

#import "std/tui"
using tui

dim as TuiCanvas cv = TuiCanvas( 40, 10 )      '' CELLS
print cv.CellCols( ), cv.CellRows( )           '' 40 10
print cv.DotWidth( ), cv.DotHeight( )          '' 80 40 -- 2x and 4x

cv.Dot( 12, 7, TuiRgb( 120, 220, 160 ) )
cv.Line_( 0, 0, 79, 39, TuiRgb( 200, 80, 80 ) )
print cv.Pattern( 0, 0 ) <> 0      '' -1 (true)  -- something is set

See also

TuiCanvas.Resize	TuiCanvas.Line_	TuiCanvas.DotHeight	TuiCanvas.Pattern
TuiCanvas.Clear	TuiCanvas.Blit	TuiCanvas.CellCols	TuiSeries
TuiCanvas.Dot	TuiCanvas.DotWidth	TuiCanvas.CellRows	TuiGraph

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Library: Terminal TUI Library
Category: Terminal TUI Library
Documented under: Charts
Working examples: hello.tiko · form.tiko · dashboard.tiko

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