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Fixed Issue + Enhancement: Hover rating widget added #102

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Fixed Issue + Enhancement: Hover rating widget added #102

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2 changes: 2 additions & 0 deletions android/local.properties
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
sdk.dir=C:\\Users\\yunes\\AppData\\Local\\Android\\sdk
flutter.sdk=C:\\flutter\\flutter
146 changes: 95 additions & 51 deletions lib/src/rating_bar.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@ class RatingBar extends StatefulWidget {
this.minRating = 0,
this.tapOnlyMode = false,
this.updateOnDrag = false,
this.fillOnHover = false,
this.wrapAlignment = WrapAlignment.start,
super.key,
}) : _itemBuilder = null,
Expand Down Expand Up @@ -83,6 +84,7 @@ class RatingBar extends StatefulWidget {
this.tapOnlyMode = false,
this.updateOnDrag = false,
this.wrapAlignment = WrapAlignment.start,
this.fillOnHover = false,
super.key,
}) : _itemBuilder = itemBuilder,
_ratingWidget = null;
Expand Down Expand Up @@ -190,6 +192,8 @@ class RatingBar extends StatefulWidget {

final IndexedWidgetBuilder? _itemBuilder;
final RatingWidget? _ratingWidget;
// Rate on hover
final bool fillOnHover;

@override
State<RatingBar> createState() => _RatingBarState();
Expand Down Expand Up @@ -302,59 +306,99 @@ class _RatingBarState extends State<RatingBar> {

return IgnorePointer(
ignoring: widget.ignoreGestures,
child: GestureDetector(
onTapDown: (details) {
double value;
if (index == 0 && (_rating == 1 || _rating == 0.5)) {
value = 0;
} else {
final tappedPosition = details.localPosition.dx;
final tappedOnFirstHalf = tappedPosition <= widget.itemSize / 2;
value = index +
(tappedOnFirstHalf && widget.allowHalfRating ? 0.5 : 1.0);
child: MouseRegion(
onEnter: (event) {
if (widget.glow) {
_glow.value = true;
}

value = math.max(value, widget.minRating);
widget.onRatingUpdate(value);
_rating = value;
setState(() {});
},
onHorizontalDragStart: _isHorizontal ? _onDragStart : null,
onHorizontalDragEnd: _isHorizontal ? _onDragEnd : null,
onHorizontalDragUpdate: _isHorizontal ? _onDragUpdate : null,
onVerticalDragStart: _isHorizontal ? null : _onDragStart,
onVerticalDragEnd: _isHorizontal ? null : _onDragEnd,
onVerticalDragUpdate: _isHorizontal ? null : _onDragUpdate,
child: Padding(
padding: widget.itemPadding,
child: ValueListenableBuilder<bool>(
valueListenable: _glow,
builder: (context, glow, child) {
if (glow && widget.glow) {
final glowColor =
widget.glowColor ?? Theme.of(context).colorScheme.secondary;
return DecoratedBox(
decoration: BoxDecoration(
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: glowColor.withAlpha(30),
blurRadius: 10,
spreadRadius: widget.glowRadius,
),
BoxShadow(
color: glowColor.withAlpha(20),
blurRadius: 10,
spreadRadius: widget.glowRadius,
),
],
),
child: child,
);
}
return child!;
},
child: resolvedRatingWidget,
// The onHover callback is called when the mouse is moved over the region.
// If widget.glow is true, it sets the _glow value to true. If widget.fillOnHover is true,
// it calculates the current rating based on the mouse position and updates
// the _rating value accordingly. It then calls setState to rebuild the widget.
onHover: (event) {
if (widget.glow) {
_glow.value = true;
}
if (widget.fillOnHover) {
final box = context.findRenderObject() as RenderBox?;
if (box == null) return;

final pos = box.globalToLocal(event.position);
double i;
if (widget.direction == Axis.horizontal) {
i = pos.dx / (widget.itemSize + widget.itemPadding.horizontal);
} else {
i = pos.dy / (widget.itemSize + widget.itemPadding.vertical);
}
var currentRating =
widget.allowHalfRating ? i : i.round().toDouble();
if (currentRating > widget.itemCount) {
currentRating = widget.itemCount.toDouble();
}
_rating = currentRating;
setState(() {});
}
},
onExit: (event) {
if (widget.glow) {
_glow.value = false;
}
},
child: GestureDetector(
onTapDown: (details) {
double value;
if (index == 0 && (_rating == 1 || _rating == 0.5)) {
value = 0;
} else {
final tappedPosition = details.localPosition.dx;
final tappedOnFirstHalf = tappedPosition <= widget.itemSize / 2;
value = index +
(tappedOnFirstHalf && widget.allowHalfRating ? 0.5 : 1.0);
}

value = math.max(value, widget.minRating);
widget.onRatingUpdate(value);
_rating = value;
setState(() {});
},
onHorizontalDragStart: _isHorizontal ? _onDragStart : null,
onHorizontalDragEnd: _isHorizontal ? _onDragEnd : null,
onHorizontalDragUpdate: _isHorizontal ? _onDragUpdate : null,
onVerticalDragStart: _isHorizontal ? null : _onDragStart,
onVerticalDragEnd: _isHorizontal ? null : _onDragEnd,
onVerticalDragUpdate: _isHorizontal ? null : _onDragUpdate,
child: Padding(
padding: widget.itemPadding,
child: ValueListenableBuilder<bool>(
valueListenable: _glow,
builder: (context, glow, child) {
if (glow && widget.glow) {
final glowColor = widget.glowColor ??
Theme.of(context).colorScheme.secondary;
return DecoratedBox(
decoration: BoxDecoration(
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: glowColor.withAlpha(30),
blurRadius: 10,
spreadRadius: widget.glowRadius,
),
BoxShadow(
color: glowColor.withAlpha(20),
blurRadius: 10,
spreadRadius: widget.glowRadius,
),
],
),
child: child,
);
}
return child!;
},
child: resolvedRatingWidget,
),
),
),
),
Expand Down