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Add separate FilterQuality parameter to RotatedOverlayImage #2169

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Add separate FilterQuality parameter to RotatedOverlayImage #2169

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39e184c
Add separate filterQuality parameter to RotatedOverlayImage
Robbendebiene Dec 4, 2025
f4d920e
Please linter
Robbendebiene Dec 4, 2025
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10 changes: 9 additions & 1 deletion lib/src/layer/overlay_image_layer/overlay_image.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,13 @@ class RotatedOverlayImage extends BaseOverlayImage {
/// The coordinates of the bottom right corner of the image.
final LatLng bottomRightCorner;

/// The filter quality of the transformed image.
/// If this is other than null the transformed widget will be raster cached.
/// This may improve performance on panning but can cause flickering on zooming when the raster cache is at its limits.
///
/// For some more details see: https://api.flutter.dev/flutter/widgets/Transform/filterQuality.html
final FilterQuality? transformFilterQuality;

/// Create a new [RotatedOverlayImage] instance that can be provided to the
/// [OverlayImageLayer].
const RotatedOverlayImage({
Expand All @@ -123,6 +130,7 @@ class RotatedOverlayImage extends BaseOverlayImage {
required this.topLeftCorner,
required this.bottomLeftCorner,
required this.bottomRightCorner,
this.transformFilterQuality,
super.filterQuality,
super.opacity,
super.gaplessPlayback,
Expand Down Expand Up @@ -167,7 +175,7 @@ class RotatedOverlayImage extends BaseOverlayImage {
height: bounds.size.height,
child: Transform(
transform: Matrix4(a, b, 0, 0, c, d, 0, 0, 0, 0, 1, 0, tx, ty, 0, 1),
filterQuality: filterQuality,
filterQuality: transformFilterQuality,
child: child,
),
);
Expand Down