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
nullwhen 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
fallbackwhen unavailable. -
normalizedSampleAt(
{required int x, required int y, double fallback = 0}) → double -
Returns a sample normalized to the range 0–1, or
fallbackwhen 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