Rename all the things

sky/sdk/lib/framework/rendering/paragraph.dart

-// 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 'box.dart';
-import 'object.dart';
-
-class RenderInline extends RenderObject {
-  RenderInline(this.data);
-  String data;
-}
-
-enum FontWeight {
-  light, // 300
-  regular, // 400
-  medium, // 500
-}
-
-enum TextAlign {
-  left,
-  right,
-  center
-}
-
-class TextStyle {
-  const TextStyle({
-    this.color,
-    this.fontSize,
-    this.fontWeight,
-    this.textAlign
-  });
-
-  final Color color;
-  final double fontSize; // in pixels
-  final FontWeight fontWeight;
-  final TextAlign textAlign;
-
-  TextStyle copyWith({
-    Color color,
-    double fontSize,
-    FontWeight fontWeight,
-    TextAlign textAlign
-  }) {
-    return new TextStyle(
-      color: color != null ? color : this.color,
-      fontSize: fontSize != null ? fontSize : this.fontSize,
-      fontWeight: fontWeight != null ? fontWeight : this.fontWeight,
-      textAlign: textAlign != null ? textAlign : this.textAlign
-    );
-  }
-
-  bool operator ==(other) {
-    return other is TextStyle &&
-      color == other.color &&
-      fontSize == other.fontSize &&
-      fontWeight == other.fontWeight &&
-      textAlign == other.textAlign;
-  }
-
-  int get hashCode {
-    // Use Quiver: https://github.com/domokit/mojo/issues/236
-    int value = 373;
-    value = 37 * value + color.hashCode;
-    value = 37 * value + fontSize.hashCode;
-    value = 37 * value + fontWeight.hashCode;
-    value = 37 * value + textAlign.hashCode;
-    return value;
-  }
-
-  String toString([String prefix = '']) {
-    List<String> result = [];
-    if (color != null)
-      result.add('${prefix}color: $color');
-    if (fontSize != null)
-      result.add('${prefix}fontSize: $fontSize');
-    if (fontWeight != null)
-      result.add('${prefix}fontWeight: fontWeight');
-    if (textAlign != null)
-      result.add('${prefix}textAlign: textAlign');
-    if (result.isEmpty)
-      return '${prefix}<no style specified>';
-    return result.join('\n');
-  }
-}
-
-// Unfortunately, using full precision floating point here causes bad layouts
-// because floating point math isn't associative. If we add and subtract
-// padding, for example, we'll get different values when we estimate sizes and
-// when we actually compute layout because the operations will end up associated
-// differently. To work around this problem for now, we round fractional pixel
-// values up to the nearest whole pixel value. The right long-term fix is to do
-// layout using fixed precision arithmetic.
-double _applyFloatingPointHack(double layoutValue) {
-  return layoutValue.ceilToDouble();
-}
-
-class RenderParagraph extends RenderBox {
-
-  RenderParagraph({
-    String text,
-    Color color,
-    TextStyle style
-  }) : _style = style {
-    _layoutRoot.rootElement = _document.createElement('p');
-    this.text = text;
-  }
-
-  final sky.Document _document = new sky.Document();
-  final sky.LayoutRoot _layoutRoot = new sky.LayoutRoot();
-
-  String get text => (_layoutRoot.rootElement.firstChild as sky.Text).data;
-  void set text (String value) {
-    _layoutRoot.rootElement.setChild(_document.createText(value));
-    markNeedsLayout();
-  }
-
-  TextStyle _style;
-  TextStyle get style => _style;
-  void set style (TextStyle value) {
-    if (_style != value) {
-      // TODO(hansmuller): decide if a new layout or paint is needed
-      markNeedsLayout();
-      _style = value;
-    }
-  }
-
-  BoxConstraints _constraintsForCurrentLayout;
-
-  sky.Element _layout(BoxConstraints constraints) {
-    _layoutRoot.maxWidth = constraints.maxWidth;
-    _layoutRoot.minWidth = constraints.minWidth;
-    _layoutRoot.minHeight = constraints.minHeight;
-    _layoutRoot.maxHeight = constraints.maxHeight;
-    _layoutRoot.layout();
-    _constraintsForCurrentLayout = constraints;
-  }
-
-  double getMinIntrinsicWidth(BoxConstraints constraints) {
-    _layout(constraints);
-    return constraints.constrainWidth(
-        _applyFloatingPointHack(_layoutRoot.rootElement.minContentWidth));
-  }
-
-  double getMaxIntrinsicWidth(BoxConstraints constraints) {
-    _layout(constraints);
-    return constraints.constrainWidth(
-        _applyFloatingPointHack(_layoutRoot.rootElement.maxContentWidth));
-  }
-
-  double _getIntrinsicHeight(BoxConstraints constraints) {
-    _layout(constraints);
-    return constraints.constrainHeight(
-        _applyFloatingPointHack(_layoutRoot.rootElement.height));
-  }
-
-  double getMinIntrinsicHeight(BoxConstraints constraints) {
-    return _getIntrinsicHeight(constraints);
-  }
-
-  double getMaxIntrinsicHeight(BoxConstraints constraints) {
-    return _getIntrinsicHeight(constraints);
-  }
-
-  void performLayout() {
-    _layout(constraints);
-    sky.Element root = _layoutRoot.rootElement;
-    // rootElement.width always expands to fill, use maxContentWidth instead.
-    size = constraints.constrain(new Size(_applyFloatingPointHack(root.maxContentWidth),
-                                          _applyFloatingPointHack(root.height)));
-  }
-
-  void paint(RenderObjectDisplayList canvas) {
-    // Ideally we could compute the min/max intrinsic width/height with a
-    // non-destructive operation. However, currently, computing these values
-    // will destroy state inside the layout root. If that happens, we need to
-    // get back the correct state by calling _layout again.
-    //
-    // TODO(abarth): Make computing the min/max intrinsic width/height a
-    //               non-destructive operation.
-    if (_constraintsForCurrentLayout != constraints && constraints != null)
-      _layout(constraints);
-
-    if (style != null) {
-      var cssStyle = _layoutRoot.rootElement.style;
-      if (style.color != null) {
-        Color c = style.color;
-        cssStyle['color'] =
-            'rgba(${c.red}, ${c.green}, ${c.blue}, ${c.alpha / 255.0})';
-      }
-      if (style.fontSize != null) {
-        cssStyle['font-size'] = "${style.fontSize}px";
-      }
-      if (style.fontWeight != null) {
-        cssStyle['font-weight'] = const {
-          FontWeight.light: '300',
-          FontWeight.regular: '400',
-          FontWeight.medium: '500',
-        }[style.fontWeight];
-      }
-      if (style.textAlign != null) {
-        cssStyle['text-align'] = const {
-          TextAlign.left: 'left',
-          TextAlign.right: 'right',
-          TextAlign.center: 'center',
-        }[style.textAlign];
-      }
-    }
-    _layoutRoot.paint(canvas);
-  }
-
-  // we should probably expose a way to do precise (inter-glpyh) hit testing
-
-  String debugDescribeSettings(String prefix) {
-    String result = '${super.debugDescribeSettings(prefix)}';
-    if (style != null)
-      result += '${prefix}style:\n' + style.toString('$prefix  ') + '\n';
-    result += '${prefix}text: ${text}\n';
-    return result;
-  }
-}