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add initial aspect ratio #51

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add initial aspect ratio #51

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20 changes: 17 additions & 3 deletions lib/src/crop.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,10 @@ class Crop extends StatelessWidget {
/// null, by default, means no fixed aspect ratio.
final double? aspectRatio;

/// initial aspect ration of cropping area.
/// you can change this ratio. it is not fixed!
final double? initialAspectRatio;

/// initial size of cropping area.
/// Set double value less than 1.0.
/// if initialSize is 1.0 (or null),
Expand Down Expand Up @@ -71,6 +75,7 @@ class Crop extends StatelessWidget {
required this.image,
required this.onCropped,
this.aspectRatio,
this.initialAspectRatio,
this.initialSize,
this.initialArea,
this.withCircleUi = false,
Expand All @@ -97,6 +102,7 @@ class Crop extends StatelessWidget {
image: image,
onCropped: onCropped,
aspectRatio: aspectRatio,
initialAspectRatio: initialAspectRatio,
initialSize: initialSize,
initialArea: initialArea,
withCircleUi: withCircleUi,
Expand All @@ -117,6 +123,7 @@ class _CropEditor extends StatefulWidget {
final Uint8List image;
final ValueChanged<Uint8List> onCropped;
final double? aspectRatio;
final double? initialAspectRatio;
final double? initialSize;
final Rect? initialArea;
final bool withCircleUi;
Expand All @@ -132,6 +139,7 @@ class _CropEditor extends StatefulWidget {
required this.image,
required this.onCropped,
this.aspectRatio,
this.initialAspectRatio,
this.initialSize,
this.initialArea,
this.withCircleUi = false,
Expand All @@ -154,6 +162,7 @@ class _CropEditorState extends State<_CropEditor> {
late Rect _imageRect;

double? _aspectRatio;
double? _initialAspectRatio;
bool _withCircleUi = false;
bool _isFitVertically = false;
Future<image.Image?>? _lastComputed;
Expand Down Expand Up @@ -239,18 +248,23 @@ class _CropEditorState extends State<_CropEditor> {

_imageRect = calculator.imageRect(screenSize, imageRatio);

_resizeWith(widget.aspectRatio, widget.initialArea);
_resizeWith(
widget.aspectRatio,
widget.initialArea,
initialAspectRatio: widget.initialAspectRatio,
);
}

/// resize cropping area with given aspect ratio.
void _resizeWith(double? aspectRatio, Rect? initialArea) {
void _resizeWith(double? aspectRatio, Rect? initialArea,
{double? initialAspectRatio}) {
_aspectRatio = _withCircleUi ? 1 : aspectRatio;

if (initialArea == null) {
rect = calculator.initialCropRect(
MediaQuery.of(context).size,
_imageRect,
_aspectRatio ?? 1,
_aspectRatio ?? initialAspectRatio ?? 1,
widget.initialSize ?? 1,
);
} else {
Expand Down