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Unified Diff: sky/sdk/lib/framework/rendering/stack.dart

Issue 1177383006: Rename all the things (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: fix imports Created 5 years, 6 months ago
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Index: sky/sdk/lib/framework/rendering/stack.dart
diff --git a/sky/sdk/lib/framework/rendering/stack.dart b/sky/sdk/lib/framework/rendering/stack.dart
deleted file mode 100644
index ed8377b00e580465a4e43e4f0b472cd29f2ab2ed..0000000000000000000000000000000000000000
--- a/sky/sdk/lib/framework/rendering/stack.dart
+++ /dev/null
@@ -1,199 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'dart:math' as math;
-
-import 'box.dart';
-import 'object.dart';
-
-class StackParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
- double top;
- double right;
- double bottom;
- double left;
-
- void merge(StackParentData other) {
- if (other.top != null)
- top = other.top;
- if (other.right != null)
- right = other.right;
- if (other.bottom != null)
- bottom = other.bottom;
- if (other.left != null)
- left = other.left;
- super.merge(other);
- }
-
- bool get isPositioned => top != null || right != null || bottom != null || left != null;
-
- String toString() => '${super.toString()}; top=$top; right=$right; bottom=$bottom, left=$left';
-}
-
-class RenderStack extends RenderBox with ContainerRenderObjectMixin<RenderBox, StackParentData>,
- RenderBoxContainerDefaultsMixin<RenderBox, StackParentData> {
- RenderStack({
- List<RenderBox> children
- }) {
- if (children != null)
- children.forEach((child) { add(child); });
- }
-
- void setParentData(RenderBox child) {
- if (child.parentData is! StackParentData)
- child.parentData = new StackParentData();
- }
-
-
- double getMinIntrinsicWidth(BoxConstraints constraints) {
- double width = constraints.minWidth;
- RenderBox child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- if (!child.parentData.isPositioned)
- width = math.max(width, child.getMinIntrinsicWidth(constraints));
- child = child.parentData.nextSibling;
- }
- assert(width == constraints.constrainWidth(width));
- return width;
- }
-
- double getMaxIntrinsicWidth(BoxConstraints constraints) {
- bool hasNonPositionedChildren = false;
- double width = constraints.minWidth;
- RenderBox child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- if (!child.parentData.isPositioned) {
- hasNonPositionedChildren = true;
- width = math.max(width, child.getMaxIntrinsicWidth(constraints));
- }
- child = child.parentData.nextSibling;
- }
- if (!hasNonPositionedChildren)
- return constraints.constrainWidth(double.INFINITY);
- assert(width == constraints.constrainWidth(width));
- return width;
- }
-
- double getMinIntrinsicHeight(BoxConstraints constraints) {
- double height = constraints.minHeight;
- RenderBox child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- if (!child.parentData.isPositioned)
- height = math.max(height, child.getMinIntrinsicHeight(constraints));
- child = child.parentData.nextSibling;
- }
- assert(height == constraints.constrainHeight(height));
- return height;
- }
-
- double getMaxIntrinsicHeight(BoxConstraints constraints) {
- bool hasNonPositionedChildren = false;
- double height = constraints.minHeight;
- RenderBox child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- if (!child.parentData.isPositioned) {
- hasNonPositionedChildren = true;
- height = math.max(height, child.getMaxIntrinsicHeight(constraints));
- }
- child = child.parentData.nextSibling;
- }
- if (!hasNonPositionedChildren)
- return constraints.constrainHeight(double.INFINITY);
- assert(height == constraints.constrainHeight(height));
- return height;
- }
-
- void performLayout() {
- bool hasNonPositionedChildren = false;
-
- double width = 0.0;
- double height = 0.0;
-
- RenderBox child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- final StackParentData parentData = child.parentData;
-
- if (!parentData.isPositioned) {
- hasNonPositionedChildren = true;
-
- child.layout(constraints, parentUsesSize: true);
- parentData.position = Point.origin;
-
- final Size childSize = child.size;
- width = math.max(width, childSize.width);
- height = math.max(height, childSize.height);
- }
-
- child = parentData.nextSibling;
- }
-
- if (hasNonPositionedChildren)
- size = new Size(width, height);
- else
- size = constraints.constrain(Size.infinite);
-
- assert(size.width < double.INFINITY);
- assert(size.height < double.INFINITY);
- assert(size.width == constraints.constrainWidth(width));
- assert(size.height == constraints.constrainHeight(height));
-
- BoxConstraints innerConstraints = new BoxConstraints.loose(size);
-
- child = firstChild;
- while (child != null) {
- assert(child.parentData is StackParentData);
- final StackParentData parentData = child.parentData;
-
- if (parentData.isPositioned) {
- BoxConstraints childConstraints = innerConstraints;
-
- if (parentData.left != null && parentData.right != null)
- childConstraints = childConstraints.applyWidth(parentData.right - parentData.left);
- else if (parentData.left != null)
- childConstraints = childConstraints.applyMaxWidth(size.width - parentData.left);
- else if (parentData.right != null)
- childConstraints = childConstraints.applyMaxWidth(size.width - parentData.right);
-
- if (parentData.top != null && parentData.bottom != null)
- childConstraints = childConstraints.applyHeight(parentData.bottom - parentData.top);
- else if (parentData.top != null)
- childConstraints = childConstraints.applyMaxHeight(size.height - parentData.top);
- else if (parentData.bottom != null)
- childConstraints = childConstraints.applyMaxHeight(size.width - parentData.bottom);
-
- child.layout(childConstraints);
-
- double x = 0.0;
- if (parentData.left != null)
- x = parentData.left;
- else if (parentData.right != null)
- x = size.width - parentData.right - child.size.width;
- assert(x >= 0.0 && x + child.size.width <= size.width);
-
- double y = 0.0;
- if (parentData.top != null)
- y = parentData.top;
- else if (parentData.bottom != null)
- y = size.height - parentData.bottom - child.size.height;
- assert(y >= 0.0 && y + child.size.height <= size.height);
-
- parentData.position = new Point(x, y);
- }
-
- child = parentData.nextSibling;
- }
- }
-
- void hitTestChildren(HitTestResult result, { Point position }) {
- defaultHitTestChildren(result, position: position);
- }
-
- void paint(RenderObjectDisplayList canvas) {
- defaultPaint(canvas);
- }
-}
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