Viewport class

A Viewport wraps a parent buffer, translating and clipping drawing operations to a relative local coordinate space within bounds.

Implemented types

• Buffer

Constructors

Viewport(Buffer parent, Rect bounds)

Creates a viewport wrapping parent constrained to bounds.

Properties

bounds → Rect

The rectangular bounds within the parent buffer.

final

cells ↔ List<Cell>

The flat list of cells representing the 2D grid.

getter/setter pair, override

hashCode → int

The hash code for this object.

no setter, inherited

height ↔ int

The height of the buffer in rows.

getter/setter pair, override

parent → Buffer

The underlying parent buffer.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

width ↔ int

The width of the buffer in columns.

getter/setter pair, override

Methods

clear() → void

Resets all cells in the buffer to transparent empty cells.

override

fill(Cell cell) → void

Fills the entire buffer with a copy of cell.

override

getCell(int x, int y) → Cell?

Gets the cell at (x, y). Returns null if coordinates are out of bounds.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

resize(int newWidth, int newHeight) → void

Resizes the buffer to the new dimensions, preserving existing content where it fits.

override

setCell(int x, int y, Cell cell) → void

Sets the cell at (x, y) to cell. Does nothing if coordinates are out of bounds.

override

toString() → String

A string representation of this object.

inherited

writeString(int x, int y, String text, Style style) → void

Writes styled text to the buffer starting at (x, y).

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited