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Signed-off-by: dom <githubaccount56556@proton.me>
This commit is contained in:
dom
2026-03-10 18:21:36 +08:00
parent 9fef3284db
commit b8098fe067
9 changed files with 446 additions and 77 deletions
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48
lib/common/widgets/custom_height_widget.dart
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@@ -1,15 +1,15 @@
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart' show RenderProxyBox;
import 'package:flutter/rendering.dart' show RenderProxyBox, BoxHitTestResult;
class CustomHeightWidget extends SingleChildRenderObjectWidget {
const CustomHeightWidget({
super.key,
required this.height,
this.height,
this.offset = .zero,
required super.child,
required Widget super.child,
});
final double height;
final double? height;
final Offset offset;
@@ -34,14 +34,14 @@ class CustomHeightWidget extends SingleChildRenderObjectWidget {
class RenderCustomHeightWidget extends RenderProxyBox {
RenderCustomHeightWidget({
required double height,
double? height,
required Offset offset,
}) : _height = height,
_offset = offset;
double _height;
double get height => _height;
set height(double value) {
double? _height;
double? get height => _height;
set height(double? value) {
if (_height == value) return;
_height = value;
markNeedsLayout();
@@ -57,12 +57,40 @@ class RenderCustomHeightWidget extends RenderProxyBox {
@override
void performLayout() {
child!.layout(constraints);
size = constraints.constrainDimensions(constraints.maxWidth, height);
if (height != null) {
child!.layout(constraints.copyWith(maxHeight: .infinity));
size = constraints.constrainDimensions(constraints.maxWidth, height!);
} else {
child!.layout(
constraints.copyWith(maxHeight: .infinity),
parentUsesSize: true,
);
size = constraints.constrainDimensions(
constraints.maxWidth,
child!.size.height,
);
}
}
@override
void paint(PaintingContext context, Offset offset) {
context.paintChild(child!, offset + _offset);
}
@override
bool hitTest(BoxHitTestResult result, {required Offset position}) {
return result.addWithPaintOffset(
offset: _offset,
position: position,
hitTest: (BoxHitTestResult result, Offset transformed) {
assert(transformed == position - _offset);
return child!.hitTest(result, position: transformed);
},
);
}
@override
void applyPaintTransform(covariant RenderObject child, Matrix4 transform) {
transform.translateByDouble(_offset.dx, _offset.dy, 0.0, 1.0);
}
}