writeFill method
Encode a paint object used for a fill in the current buffer, returning the identifier assigned to it.
color
is the 32-bit ARBG color representation used by Flutter
internally. The blendMode
fields should be the index of the
corresponding enumeration.
This method is only used to write the paint used for fill commands. To write a paint used for a stroke command, see writeStroke.
Implementation
int writeFill(
VectorGraphicsBuffer buffer,
int color,
int blendMode, [
int? shaderId,
]) {
buffer._checkPhase(_CurrentSection.paints);
final int paintId = buffer._nextPaintId++;
assert(paintId < kMaxId);
buffer._putUint8(_fillPaintTag);
buffer._putUint32(color);
buffer._putUint8(blendMode);
buffer._putUint16(paintId);
buffer._putUint16(shaderId ?? kMaxId);
return paintId;
}