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29ab28d922
This patch start down the road of implementing text layout and painting without the DOM. We can construct a basic paragraph consisting of a single run of text and we can get through layout without crashing.
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
// 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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#include "sky/engine/core/text/ParagraphBuilder.h"
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#include "sky/engine/core/css/CSSFontSelector.h"
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#include "sky/engine/core/css/resolver/FontBuilder.h"
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#include "sky/engine/core/rendering/RenderParagraph.h"
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#include "sky/engine/core/rendering/RenderText.h"
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#include "sky/engine/core/rendering/style/RenderStyle.h"
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namespace blink {
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namespace {
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PassOwnPtr<RenderView> createRenderView()
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{
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RefPtr<RenderStyle> style = RenderStyle::create();
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style->setRTLOrdering(LogicalOrder);
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style->setZIndex(0);
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style->setUserModify(READ_ONLY);
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FontBuilder fontBuilder;
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fontBuilder.initForStyleResolve(nullptr, style.get());
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RefPtr<CSSFontSelector> selector = CSSFontSelector::create(nullptr);
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fontBuilder.createFontForDocument(selector.release(), style.get());
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OwnPtr<RenderView> renderView = adoptPtr(new RenderView(nullptr));
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renderView->setStyle(style.release());
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return renderView.release();
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}
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RenderParagraph* createRenderParagraph(RenderStyle* parentStyle)
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{
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RefPtr<RenderStyle> style = RenderStyle::create();
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style->inheritFrom(parentStyle);
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style->setDisplay(PARAGRAPH);
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RenderParagraph* renderParagraph = new RenderParagraph(nullptr);
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renderParagraph->setStyle(style.release());
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return renderParagraph;
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}
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} // namespace
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ParagraphBuilder::ParagraphBuilder()
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{
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m_renderView = createRenderView();
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m_parentStyle = RenderStyle::clone(m_renderView->style());
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m_renderParagraph = createRenderParagraph(m_parentStyle.get());
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m_parentStyle = RenderStyle::clone(m_renderParagraph->style());
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m_renderView->addChild(m_renderParagraph);
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}
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ParagraphBuilder::~ParagraphBuilder()
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{
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}
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void ParagraphBuilder::pushStyle(TextStyle* style)
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{
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}
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void ParagraphBuilder::pop()
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{
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}
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void ParagraphBuilder::addText(const String& text)
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{
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RenderText* renderText = new RenderText(nullptr, text.impl());
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RefPtr<RenderStyle> style = RenderStyle::create();
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style->inheritFrom(m_parentStyle.get());
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renderText->setStyle(style.release());
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m_renderParagraph->addChild(renderText);
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}
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PassRefPtr<Paragraph> ParagraphBuilder::build(ParagraphStyle* style)
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{
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m_parentStyle = nullptr;
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m_renderParagraph = nullptr;
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return Paragraph::create(m_renderView.release());
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}
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} // namespace blink
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