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Added borderColor #58

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ebd0015
Added borderColor
vinicioshenriques Jan 5, 2022
140eb1e
Merge remote-tracking branch 'upstream/main' into add_bordinha
luciano-cervantes Jan 24, 2023
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16 changes: 16 additions & 0 deletions example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ class _CropSampleState extends State<CropSample> {
}

var _isSumbnail = false;
var _useBorders = false;
var _isCropping = false;
var _isCircleUi = false;
Uint8List? _croppedData;
Expand Down Expand Up @@ -117,6 +118,7 @@ class _CropSampleState extends State<CropSample> {
children: [
if (_imageDataList.isNotEmpty) ...[
Crop(
borderColor: _useBorders ? Colors.black : null,
controller: _cropController,
image: _imageDataList[_currentImage],
onCropped: (croppedData) {
Expand Down Expand Up @@ -166,6 +168,20 @@ class _CropSampleState extends State<CropSample> {
),
),
],
Positioned(
right: 16,
bottom: 60,
child: GestureDetector(
onTap: () => setState(() => _useBorders = !_useBorders),
child: CircleAvatar(
backgroundColor:
_useBorders ? Colors.blue.shade50 : Colors.blue,
child: Center(
child: Icon(Icons.border_outer_rounded),
),
),
),
),
Positioned(
right: 16,
bottom: 16,
Expand Down
120 changes: 56 additions & 64 deletions lib/src/crop.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,7 @@ part of crop_your_image;

const dotTotalSize = 32.0; // fixed corner dot size.

typedef CornerDotBuilder = Widget Function(
double size, EdgeAlignment edgeAlignment);
typedef CornerDotBuilder = Widget Function(double size, EdgeAlignment edgeAlignment);

typedef CroppingAreaBuilder = Rect Function(Rect imageRect);

Expand Down Expand Up @@ -76,6 +75,12 @@ class Crop extends StatelessWidget {
/// If default dot Widget with different color is needed, [DotControl] is available.
final CornerDotBuilder? cornerDotBuilder;

/// [Color] of the image border
/// When [borderColor] is set, a border with the given color is added to the
/// image exterior, making it better to see the image ending when
/// the [baseColor] and the image background are similar
final Color? borderColor;
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Why don't we accept Border, not only Color?
It enables users to decide other configurations, such as width.


/// If [true], cropping area is fixed and CANNOT be moved.
/// [false] by default.
final bool fixArea;
Expand Down Expand Up @@ -105,11 +110,11 @@ class Crop extends StatelessWidget {
this.baseColor = Colors.white,
this.radius = 0,
this.cornerDotBuilder,
this.borderColor,
this.fixArea = false,
this.progressIndicator = const SizedBox.shrink(),
this.interactive = false,
}) : assert((initialSize ?? 1.0) <= 1.0,
'initialSize must be less than 1.0, or null meaning not specified.'),
}) : assert((initialSize ?? 1.0) <= 1.0, 'initialSize must be less than 1.0, or null meaning not specified.'),
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Can you format the code so that unrelated changes are not included in this PR?

super(key: key);

@override
Expand All @@ -136,6 +141,7 @@ class Crop extends StatelessWidget {
baseColor: baseColor,
radius: radius,
cornerDotBuilder: cornerDotBuilder,
borderColor: borderColor,
fixArea: fixArea,
progressIndicator: progressIndicator,
interactive: interactive,
Expand All @@ -161,6 +167,7 @@ class _CropEditor extends StatefulWidget {
final Color baseColor;
final double radius;
final CornerDotBuilder? cornerDotBuilder;
final Color? borderColor;
final bool fixArea;
final Widget progressIndicator;
final bool interactive;
Expand All @@ -181,6 +188,7 @@ class _CropEditor extends StatefulWidget {
required this.baseColor,
required this.radius,
this.cornerDotBuilder,
this.borderColor,
required this.fixArea,
required this.progressIndicator,
required this.interactive,
Expand All @@ -203,9 +211,7 @@ class _CropEditorState extends State<_CropEditor> {

bool get _isImageLoading => _lastComputed != null;

_Calculator get calculator => _isFitVertically
? const _VerticalCalculator()
: const _HorizontalCalculator();
_Calculator get calculator => _isFitVertically ? const _VerticalCalculator() : const _HorizontalCalculator();

set rect(Rect newRect) {
setState(() {
Expand Down Expand Up @@ -270,25 +276,17 @@ class _CropEditorState extends State<_CropEditor> {

// width
final newWidth = baseWidth * nextScale;
final horizontalFocalPointBias = focalPoint == null
? 0.5
: (focalPoint.dx - _imageRect.left) / _imageRect.width;
final leftPositionDelta =
(newWidth - _imageRect.width) * horizontalFocalPointBias;
final horizontalFocalPointBias = focalPoint == null ? 0.5 : (focalPoint.dx - _imageRect.left) / _imageRect.width;
final leftPositionDelta = (newWidth - _imageRect.width) * horizontalFocalPointBias;

// height
final newHeight = baseHeight * nextScale;
final verticalFocalPointBias = focalPoint == null
? 0.5
: (focalPoint.dy - _imageRect.top) / _imageRect.height;
final topPositionDelta =
(newHeight - _imageRect.height) * verticalFocalPointBias;
final verticalFocalPointBias = focalPoint == null ? 0.5 : (focalPoint.dy - _imageRect.top) / _imageRect.height;
final topPositionDelta = (newHeight - _imageRect.height) * verticalFocalPointBias;

// position
final newLeft = max(min(_rect.left, _imageRect.left - leftPositionDelta),
_rect.right - newWidth);
final newTop = max(min(_rect.top, _imageRect.top - topPositionDelta),
_rect.bottom - newHeight);
final newLeft = max(min(_rect.left, _imageRect.left - leftPositionDelta), _rect.right - newWidth);
final newTop = max(min(_rect.top, _imageRect.top - topPositionDelta), _rect.bottom - newHeight);

if (newWidth < _rect.width || newHeight < _rect.height) {
return;
Expand Down Expand Up @@ -456,36 +454,42 @@ class _CropEditorState extends State<_CropEditor> {
child: GestureDetector(
onScaleStart: widget.interactive ? _startScale : null,
onScaleUpdate: widget.interactive ? _updateScale : null,
child: Container(
color: widget.baseColor,
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.height,
child: Stack(
children: [
Positioned(
left: _imageRect.left,
top: _imageRect.top,
child: Image.memory(
widget.image,
width: _isFitVertically
? null
: MediaQuery.of(context).size.width * _scale,
height: _isFitVertically
? MediaQuery.of(context).size.height * _scale
: null,
fit: BoxFit.contain,
child: Flex(
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Do we need Flex? It seems children always has only one child and Flex is not necessary.

direction: _isFitVertically ? Axis.vertical : Axis.horizontal,
children: [
Expanded(
child: Container(
foregroundDecoration: (widget.borderColor != null && widget.maskColor == null)
? BoxDecoration(
border: Border.all(color: widget.borderColor!, width: 2),
)
: null,
color: widget.baseColor,
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.height,
child: Stack(
children: [
Positioned(
left: _imageRect.left,
top: _imageRect.top,
child: Image.memory(
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I guess the border decoration should come here. Otherwise, as long as checking the example app, the border comes to the boundary of Crop, not the image.

widget.image,
width: _isFitVertically ? null : MediaQuery.of(context).size.width * _scale,
height: _isFitVertically ? MediaQuery.of(context).size.height * _scale : null,
fit: BoxFit.contain,
),
),
],
),
),
],
),
)
],
),
),
),
IgnorePointer(
child: ClipPath(
clipper: _withCircleUi
? _CircleCropAreaClipper(_rect)
: _CropAreaClipper(_rect, widget.radius),
clipper: _withCircleUi ? _CircleCropAreaClipper(_rect) : _CropAreaClipper(_rect, widget.radius),
child: Container(
width: double.infinity,
height: double.infinity,
Expand Down Expand Up @@ -528,9 +532,7 @@ class _CropEditorState extends State<_CropEditor> {
_aspectRatio,
);
},
child: widget.cornerDotBuilder
?.call(dotTotalSize, EdgeAlignment.topLeft) ??
const DotControl(),
child: widget.cornerDotBuilder?.call(dotTotalSize, EdgeAlignment.topLeft) ?? const DotControl(),
),
),
Positioned(
Expand All @@ -548,9 +550,7 @@ class _CropEditorState extends State<_CropEditor> {
_aspectRatio,
);
},
child: widget.cornerDotBuilder
?.call(dotTotalSize, EdgeAlignment.topRight) ??
const DotControl(),
child: widget.cornerDotBuilder?.call(dotTotalSize, EdgeAlignment.topRight) ?? const DotControl(),
),
),
Positioned(
Expand All @@ -568,9 +568,7 @@ class _CropEditorState extends State<_CropEditor> {
_aspectRatio,
);
},
child: widget.cornerDotBuilder
?.call(dotTotalSize, EdgeAlignment.bottomLeft) ??
const DotControl(),
child: widget.cornerDotBuilder?.call(dotTotalSize, EdgeAlignment.bottomLeft) ?? const DotControl(),
),
),
Positioned(
Expand All @@ -588,9 +586,7 @@ class _CropEditorState extends State<_CropEditor> {
_aspectRatio,
);
},
child: widget.cornerDotBuilder
?.call(dotTotalSize, EdgeAlignment.bottomRight) ??
const DotControl(),
child: widget.cornerDotBuilder?.call(dotTotalSize, EdgeAlignment.bottomRight) ?? const DotControl(),
),
),
],
Expand All @@ -610,17 +606,13 @@ class _CropAreaClipper extends CustomClipper<Path> {
..addPath(
Path()
..moveTo(rect.left, rect.top + radius)
..arcToPoint(Offset(rect.left + radius, rect.top),
radius: Radius.circular(radius))
..arcToPoint(Offset(rect.left + radius, rect.top), radius: Radius.circular(radius))
..lineTo(rect.right - radius, rect.top)
..arcToPoint(Offset(rect.right, rect.top + radius),
radius: Radius.circular(radius))
..arcToPoint(Offset(rect.right, rect.top + radius), radius: Radius.circular(radius))
..lineTo(rect.right, rect.bottom - radius)
..arcToPoint(Offset(rect.right - radius, rect.bottom),
radius: Radius.circular(radius))
..arcToPoint(Offset(rect.right - radius, rect.bottom), radius: Radius.circular(radius))
..lineTo(rect.left + radius, rect.bottom)
..arcToPoint(Offset(rect.left, rect.bottom - radius),
radius: Radius.circular(radius))
..arcToPoint(Offset(rect.left, rect.bottom - radius), radius: Radius.circular(radius))
..close(),
Offset.zero,
)
Expand Down