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68b06c8736
Rather than using the DOM to upload text and styling information into the engine, this patch begins sketching a more direct API that bypasses the DOM and CSS. Currently, this API doesn't do anything, but it's a first step. The approach is to have a ParagraphBuilder object that can record a tree of style interior nodes and text leaves. The build() function then applies container-level styling information (such as TextAlign) and returns a Paragraph object that can undergo layout and paint. The inputs to the builder process are immutable style objects constructed from primitive values. These primitives are currently carbon-copies of the primitive we use in the framework today. After this patch lands, I'll convert the frame to re-expose these values instead of re-defining them.
15 lines
429 B
Dart
15 lines
429 B
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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part of dart.sky;
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/// A horizontal line used for aligning text
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enum TextBaseline {
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// The horizontal line used to align the bottom of glyphs for alphabetic characters
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alphabetic,
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// The horizontal line used to align ideographic characters
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ideographic
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}
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