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50bfdedbf4
Sadly, box.dart has grown much longer than 1000 lines. This patch splits it up into several files based on the class hierarchy. Fortunately, many of these classes are loosely coupled to each other.
84 lines
2.6 KiB
Dart
84 lines
2.6 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 'package:sky/painting/text_style.dart';
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import 'package:sky/rendering/box.dart';
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import 'package:sky/rendering/flex.dart';
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import 'package:sky/rendering/object.dart';
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import 'package:sky/rendering/paragraph.dart';
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import 'package:sky/rendering/proxy_box.dart';
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import 'package:sky/rendering/shifted_box.dart';
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import 'package:sky/rendering/sky_binding.dart';
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RenderBox getBox(double lh) {
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RenderParagraph paragraph = new RenderParagraph(
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new StyledTextSpan(
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new TextStyle(
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color: const Color(0xFF0000A0)
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),
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[
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new PlainTextSpan('test'),
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new StyledTextSpan(
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new TextStyle(
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fontFamily: 'serif',
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fontSize: 50.0,
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height: lh
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),
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[new PlainTextSpan('مرحبا Hello')]
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)
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]
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)
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);
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return new RenderPadding(
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padding: new EdgeDims.all(10.0),
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child: new RenderConstrainedBox(
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additionalConstraints: new BoxConstraints.tightFor(height: 200.0),
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child: new RenderDecoratedBox(
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decoration: new BoxDecoration(
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backgroundColor: const Color(0xFFFFFFFF)
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),
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child: new RenderPadding(
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padding: new EdgeDims.all(10.0),
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child: new RenderCustomPaint(
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child: paragraph,
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callback: (canvas, size) {
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double baseline = paragraph.getDistanceToBaseline(TextBaseline.alphabetic);
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double w = paragraph.getMaxIntrinsicWidth(new BoxConstraints.loose(size));
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double h = paragraph.getMaxIntrinsicHeight(new BoxConstraints.loose(size));
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Path path = new Path();
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path.moveTo(0.0, 0.0);
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path.lineTo(w, 0.0);
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path.moveTo(0.0, baseline);
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path.lineTo(w, baseline);
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path.moveTo(0.0, h);
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path.lineTo(w, h);
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Paint paint = new Paint();
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paint.color = const Color(0xFFFF9000);
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paint.setStyle(sky.PaintingStyle.stroke);
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paint.strokeWidth = 3.0;
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canvas.drawPath(path, paint);
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}
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)
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)
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)
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)
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);
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}
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void main() {
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RenderBox root = new RenderFlex(children: [
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new RenderConstrainedBox(
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additionalConstraints: new BoxConstraints.tightFor(height: 50.0)
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),
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getBox(1.0),
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getBox(null),
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],
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direction: FlexDirection.vertical,
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alignItems: FlexAlignItems.stretch
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);
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new SkyBinding(root: root);
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}
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