Canvas class final
Canvas is a cell-buffer that can be used to compose and draw Drawables.
Upstream: third_party/lipgloss/canvas.go (Canvas backed by uv.ScreenBuffer).
- Implemented types
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
bounds(
) → Rectangle -
Returns the drawable bounds of the canvas.
override
-
cellAt(
int x, int y) → Cell? -
Returns the cell at (
x,y) or null if out of bounds.override -
clear(
) → void - Clears the entire canvas to empty cells.
-
compose(
Drawable drawer) → Canvas -
Composes a
Drawableonto this canvas. -
draw(
Screen screen, Rectangle area) → void -
Draws this canvas onto another Screen within
area. -
height(
) → int - The current canvas height in cells.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
render(
) → String - Renders the canvas into a string (trimming trailing spaces per line).
-
resize(
int width, int height) → void - Resizes the canvas backing buffer to the given dimensions.
-
setCell(
int x, int y, Cell? cell) → void -
Sets the cell at (
x,y) in the backing buffer.override -
toString(
) → String -
A string representation of this object.
inherited
-
width(
) → int - The current canvas width in cells.
-
widthMethod(
) → WidthMethod -
Returns the active grapheme width measurement method.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited