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

Issue 1166773003: Rename rendering/render_*.dart to rendering/*.dart (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 5 years, 7 months ago
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Index: sky/sdk/lib/framework/rendering/render_flex.dart
diff --git a/sky/sdk/lib/framework/rendering/render_flex.dart b/sky/sdk/lib/framework/rendering/render_flex.dart
deleted file mode 100644
index 5ef24fdf987a2c0cc96f526b695bff98ecf7be20..0000000000000000000000000000000000000000
--- a/sky/sdk/lib/framework/rendering/render_flex.dart
+++ /dev/null
@@ -1,120 +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:sky' as sky;
-import 'render_box.dart';
-import 'render_node.dart';
-
-class FlexBoxParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
- int flex;
- void merge(FlexBoxParentData other) {
- if (other.flex != null)
- flex = other.flex;
- super.merge(other);
- }
-}
-
-enum FlexDirection { Horizontal, Vertical }
-
-class RenderFlex extends RenderBox with ContainerRenderNodeMixin<RenderBox, FlexBoxParentData>,
- RenderBoxContainerDefaultsMixin<RenderBox, FlexBoxParentData> {
- // lays out RenderBox children using flexible layout
-
- RenderFlex({
- FlexDirection direction: FlexDirection.Horizontal
- }) : _direction = direction;
-
- FlexDirection _direction;
- FlexDirection get direction => _direction;
- void set direction (FlexDirection value) {
- if (_direction != value) {
- _direction = value;
- markNeedsLayout();
- }
- }
-
- void setParentData(RenderBox child) {
- if (child.parentData is! FlexBoxParentData)
- child.parentData = new FlexBoxParentData();
- }
-
- bool get sizedByParent => true;
- void performResize() {
- size = constraints.constrain(new sky.Size(constraints.maxWidth, constraints.maxHeight));
- assert(size.height < double.INFINITY);
- assert(size.width < double.INFINITY);
- }
-
- int _getFlex(RenderBox child) {
- assert(child.parentData is FlexBoxParentData);
- return child.parentData.flex != null ? child.parentData.flex : 0;
- }
-
- void performLayout() {
- // Based on http://www.w3.org/TR/css-flexbox-1/ Section 9.7 Resolving Flexible Lengths
- // Steps 1-3. Determine used flex factor, size inflexible items, calculate free space
- int totalFlex = 0;
- assert(constraints != null);
- double freeSpace = (_direction == FlexDirection.Horizontal) ? constraints.maxWidth : constraints.maxHeight;
- RenderBox child = firstChild;
- while (child != null) {
- int flex = _getFlex(child);
- if (flex > 0) {
- totalFlex += child.parentData.flex;
- } else {
- BoxConstraints innerConstraints = new BoxConstraints(maxHeight: constraints.maxHeight,
- maxWidth: constraints.maxWidth);
- child.layout(innerConstraints, parentUsesSize: true);
- freeSpace -= (_direction == FlexDirection.Horizontal) ? child.size.width : child.size.height;
- }
- child = child.parentData.nextSibling;
- }
-
- // Steps 4-5. Distribute remaining space to flexible children.
- double spacePerFlex = totalFlex > 0 ? (freeSpace / totalFlex) : 0.0;
- double usedSpace = 0.0;
- child = firstChild;
- while (child != null) {
- int flex = _getFlex(child);
- if (flex > 0) {
- double spaceForChild = spacePerFlex * flex;
- BoxConstraints innerConstraints;
- switch (_direction) {
- case FlexDirection.Horizontal:
- innerConstraints = new BoxConstraints(maxHeight: constraints.maxHeight,
- minWidth: spaceForChild,
- maxWidth: spaceForChild);
- break;
- case FlexDirection.Vertical:
- innerConstraints = new BoxConstraints(minHeight: spaceForChild,
- maxHeight: spaceForChild,
- maxWidth: constraints.maxWidth);
- break;
- }
- child.layout(innerConstraints, parentUsesSize: true);
- }
-
- // For now, center the flex items in the cross direction
- switch (_direction) {
- case FlexDirection.Horizontal:
- child.parentData.position = new sky.Point(usedSpace, size.height / 2.0 - child.size.height / 2.0);
- usedSpace += child.size.width;
- break;
- case FlexDirection.Vertical:
- child.parentData.position = new sky.Point(size.width / 2.0 - child.size.width / 2.0, usedSpace);
- usedSpace += child.size.height;
- break;
- }
- child = child.parentData.nextSibling;
- }
- }
-
- void hitTestChildren(HitTestResult result, { sky.Point position }) {
- defaultHitTestChildren(result, position: position);
- }
-
- void paint(RenderNodeDisplayList canvas) {
- defaultPaint(canvas);
- }
-}
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