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This makes debugging the render tree a lot easier. Just print the node you care about, and you get an indented tree view of its subtree, including settings. New subclasses should implement the new virtual method debugDescribeSettings() to expose new settings. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/1157993005
67 lines
1.9 KiB
Dart
67 lines
1.9 KiB
Dart
// 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
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// found in the LICENSE file.
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import 'dart:sky' as sky;
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import 'box.dart';
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import 'object.dart';
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class RenderInline extends RenderObject {
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String data;
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RenderInline(this.data);
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}
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class RenderParagraph extends RenderBox {
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RenderParagraph({
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String text,
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sky.Color color
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}) : _color = color {
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_layoutRoot.rootElement = _document.createElement('p');
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this.text = text;
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}
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final sky.Document _document = new sky.Document();
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final sky.LayoutRoot _layoutRoot = new sky.LayoutRoot();
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String get text => (_layoutRoot.rootElement.firstChild as sky.Text).data;
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void set text (String value) {
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_layoutRoot.rootElement.setChild(_document.createText(value));
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markNeedsLayout();
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}
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sky.Color _color = const sky.Color(0xFF000000);
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sky.Color get color => _color;
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void set color (sky.Color value) {
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if (_color != value) {
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_color = value;
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markNeedsPaint();
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}
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}
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sky.Size getIntrinsicDimensions(BoxConstraints constraints) {
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assert(false);
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return null;
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// we don't currently support this for RenderParagraph
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}
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void performLayout() {
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_layoutRoot.maxWidth = constraints.maxWidth;
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_layoutRoot.minWidth = constraints.minWidth;
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_layoutRoot.minHeight = constraints.minHeight;
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_layoutRoot.maxHeight = constraints.maxHeight;
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_layoutRoot.layout();
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size = constraints.constrain(new sky.Size(_layoutRoot.rootElement.width, _layoutRoot.rootElement.height));
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}
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void paint(RenderObjectDisplayList canvas) {
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// _layoutRoot.rootElement.style['color'] = 'rgba(' + ...color... + ')';
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_layoutRoot.paint(canvas);
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}
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// we should probably expose a way to do precise (inter-glpyh) hit testing
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String debugDescribeChildren(String prefix) => '${prefix}TEXT (${color}): ${text}';
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}
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