PsPatternChannel class final

One decoded or preserved virtual-memory channel from a Photoshop pattern.

Constructors

PsPatternChannel({required int primaryDepth, required int depth, required PsRectangle bounds, required PsPatternCompression compression, required int compressionCode, required Uint8List encodedData, required Uint8List? decodedData, required Uint8List trailingData})
Creates an immutable decoded or preserved channel.

Properties

bounds → PsRectangle
Source-space rectangle covered by this channel.
final
compression → PsPatternCompression
Known interpretation of compressionCode.
final
compressionCode → int
Original numeric compression marker.
final
decodedData → Uint8List?
Row-major uncompressed bytes, or null when decoding was disabled or unsupported.
final
depth → int
Second depth value used to lay out channel samples.
final
encodedData → Uint8List
Original bytes following the fixed 23-byte channel header.
final
hashCode → int
The hash code for this object.
no setterinherited
primaryDepth → int
First depth value stored at the beginning of the channel header.
final
rowBytes → int
Number of bytes used by one decoded row.
latefinal
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
trailingData → Uint8List
Bytes remaining after the recognized raw samples or PackBits rows.
final

Methods

byteSampleAt({required int x, required int y, int fallback = 0}) → int
Returns a sample normalized to an unsigned byte, or fallback when unavailable.
normalizedSampleAt({required int x, required int y, double fallback = 0}) → double
Returns a sample normalized to the range 0–1, or fallback when unavailable.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
sampleAt({required int x, required int y}) → num?
Returns the exact stored sample at source coordinate x, y.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited