| Index: sky/sdk/lib/framework/rendering/stack.dart
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| diff --git a/sky/sdk/lib/framework/rendering/stack.dart b/sky/sdk/lib/framework/rendering/stack.dart
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| deleted file mode 100644
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| index ed8377b00e580465a4e43e4f0b472cd29f2ab2ed..0000000000000000000000000000000000000000
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| --- a/sky/sdk/lib/framework/rendering/stack.dart
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| +++ /dev/null
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| @@ -1,199 +0,0 @@
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| -// Copyright 2015 The Chromium Authors. All rights reserved.
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| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
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| -
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| -import 'dart:math' as math;
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| -
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| -import 'box.dart';
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| -import 'object.dart';
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| -
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| -class StackParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
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| - double top;
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| - double right;
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| - double bottom;
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| - double left;
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| -
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| - void merge(StackParentData other) {
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| - if (other.top != null)
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| - top = other.top;
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| - if (other.right != null)
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| - right = other.right;
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| - if (other.bottom != null)
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| - bottom = other.bottom;
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| - if (other.left != null)
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| - left = other.left;
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| - super.merge(other);
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| - }
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| -
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| - bool get isPositioned => top != null || right != null || bottom != null || left != null;
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| -
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| - String toString() => '${super.toString()}; top=$top; right=$right; bottom=$bottom, left=$left';
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| -}
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| -
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| -class RenderStack extends RenderBox with ContainerRenderObjectMixin<RenderBox, StackParentData>,
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| - RenderBoxContainerDefaultsMixin<RenderBox, StackParentData> {
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| - RenderStack({
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| - List<RenderBox> children
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| - }) {
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| - if (children != null)
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| - children.forEach((child) { add(child); });
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| - }
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| -
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| - void setParentData(RenderBox child) {
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| - if (child.parentData is! StackParentData)
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| - child.parentData = new StackParentData();
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| - }
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| -
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| -
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| - double getMinIntrinsicWidth(BoxConstraints constraints) {
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| - double width = constraints.minWidth;
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| - RenderBox child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - if (!child.parentData.isPositioned)
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| - width = math.max(width, child.getMinIntrinsicWidth(constraints));
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| - child = child.parentData.nextSibling;
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| - }
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| - assert(width == constraints.constrainWidth(width));
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| - return width;
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| - }
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| -
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| - double getMaxIntrinsicWidth(BoxConstraints constraints) {
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| - bool hasNonPositionedChildren = false;
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| - double width = constraints.minWidth;
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| - RenderBox child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - if (!child.parentData.isPositioned) {
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| - hasNonPositionedChildren = true;
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| - width = math.max(width, child.getMaxIntrinsicWidth(constraints));
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| - }
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| - child = child.parentData.nextSibling;
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| - }
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| - if (!hasNonPositionedChildren)
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| - return constraints.constrainWidth(double.INFINITY);
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| - assert(width == constraints.constrainWidth(width));
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| - return width;
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| - }
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| -
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| - double getMinIntrinsicHeight(BoxConstraints constraints) {
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| - double height = constraints.minHeight;
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| - RenderBox child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - if (!child.parentData.isPositioned)
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| - height = math.max(height, child.getMinIntrinsicHeight(constraints));
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| - child = child.parentData.nextSibling;
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| - }
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| - assert(height == constraints.constrainHeight(height));
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| - return height;
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| - }
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| -
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| - double getMaxIntrinsicHeight(BoxConstraints constraints) {
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| - bool hasNonPositionedChildren = false;
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| - double height = constraints.minHeight;
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| - RenderBox child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - if (!child.parentData.isPositioned) {
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| - hasNonPositionedChildren = true;
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| - height = math.max(height, child.getMaxIntrinsicHeight(constraints));
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| - }
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| - child = child.parentData.nextSibling;
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| - }
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| - if (!hasNonPositionedChildren)
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| - return constraints.constrainHeight(double.INFINITY);
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| - assert(height == constraints.constrainHeight(height));
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| - return height;
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| - }
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| -
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| - void performLayout() {
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| - bool hasNonPositionedChildren = false;
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| -
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| - double width = 0.0;
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| - double height = 0.0;
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| -
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| - RenderBox child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - final StackParentData parentData = child.parentData;
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| -
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| - if (!parentData.isPositioned) {
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| - hasNonPositionedChildren = true;
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| -
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| - child.layout(constraints, parentUsesSize: true);
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| - parentData.position = Point.origin;
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| -
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| - final Size childSize = child.size;
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| - width = math.max(width, childSize.width);
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| - height = math.max(height, childSize.height);
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| - }
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| -
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| - child = parentData.nextSibling;
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| - }
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| -
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| - if (hasNonPositionedChildren)
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| - size = new Size(width, height);
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| - else
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| - size = constraints.constrain(Size.infinite);
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| -
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| - assert(size.width < double.INFINITY);
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| - assert(size.height < double.INFINITY);
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| - assert(size.width == constraints.constrainWidth(width));
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| - assert(size.height == constraints.constrainHeight(height));
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| -
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| - BoxConstraints innerConstraints = new BoxConstraints.loose(size);
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| -
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| - child = firstChild;
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| - while (child != null) {
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| - assert(child.parentData is StackParentData);
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| - final StackParentData parentData = child.parentData;
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| -
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| - if (parentData.isPositioned) {
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| - BoxConstraints childConstraints = innerConstraints;
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| -
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| - if (parentData.left != null && parentData.right != null)
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| - childConstraints = childConstraints.applyWidth(parentData.right - parentData.left);
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| - else if (parentData.left != null)
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| - childConstraints = childConstraints.applyMaxWidth(size.width - parentData.left);
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| - else if (parentData.right != null)
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| - childConstraints = childConstraints.applyMaxWidth(size.width - parentData.right);
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| -
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| - if (parentData.top != null && parentData.bottom != null)
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| - childConstraints = childConstraints.applyHeight(parentData.bottom - parentData.top);
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| - else if (parentData.top != null)
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| - childConstraints = childConstraints.applyMaxHeight(size.height - parentData.top);
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| - else if (parentData.bottom != null)
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| - childConstraints = childConstraints.applyMaxHeight(size.width - parentData.bottom);
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| -
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| - child.layout(childConstraints);
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| -
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| - double x = 0.0;
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| - if (parentData.left != null)
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| - x = parentData.left;
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| - else if (parentData.right != null)
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| - x = size.width - parentData.right - child.size.width;
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| - assert(x >= 0.0 && x + child.size.width <= size.width);
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| -
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| - double y = 0.0;
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| - if (parentData.top != null)
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| - y = parentData.top;
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| - else if (parentData.bottom != null)
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| - y = size.height - parentData.bottom - child.size.height;
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| - assert(y >= 0.0 && y + child.size.height <= size.height);
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| -
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| - parentData.position = new Point(x, y);
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| - }
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| -
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| - child = parentData.nextSibling;
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| - }
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| - }
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| -
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| - void hitTestChildren(HitTestResult result, { Point position }) {
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| - defaultHitTestChildren(result, position: position);
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| - }
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| -
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| - void paint(RenderObjectDisplayList canvas) {
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| - defaultPaint(canvas);
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| - }
|
| -}
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|
|