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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.
64 lines
1.9 KiB
C++
64 lines
1.9 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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#ifndef SKY_ENGINE_CORE_TEXT_PARAGRAPH_H_
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#define SKY_ENGINE_CORE_TEXT_PARAGRAPH_H_
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#include "sky/engine/tonic/dart_wrappable.h"
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#include "sky/engine/wtf/PassRefPtr.h"
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#include "sky/engine/wtf/RefCounted.h"
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#include "sky/engine/core/painting/Canvas.h"
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#include "sky/engine/core/painting/Offset.h"
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#include "sky/engine/core/rendering/RenderView.h"
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namespace blink {
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class Paragraph : public RefCounted<Paragraph>, public DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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public:
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static PassRefPtr<Paragraph> create(PassOwnPtr<RenderView> renderView) {
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return adoptRef(new Paragraph(renderView));
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}
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~Paragraph() override;
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LayoutUnit minWidth() const { return m_minWidth; }
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void setMinWidth(LayoutUnit width) { m_minWidth = width; }
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LayoutUnit maxWidth() const { return m_maxWidth; }
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void setMaxWidth(LayoutUnit width) { m_maxWidth = width; }
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LayoutUnit minHeight() const { return m_minHeight; }
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void setMinHeight(LayoutUnit height) { m_minHeight = height; }
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LayoutUnit maxHeight() const { return m_maxHeight; }
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void setMaxHeight(LayoutUnit height) { m_maxHeight = height; }
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double width();
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double height();
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double minIntrinsicWidth();
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double maxIntrinsicWidth();
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double alphabeticBaseline();
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double ideographicBaseline();
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void layout();
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void paint(Canvas* canvas, const Offset& offset);
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RenderView* renderView() const { return m_renderView.get(); }
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private:
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LayoutUnit m_minWidth;
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LayoutUnit m_maxWidth;
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LayoutUnit m_minHeight;
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LayoutUnit m_maxHeight;
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explicit Paragraph(PassOwnPtr<RenderView> renderView);
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OwnPtr<RenderView> m_renderView;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_TEXT_PARAGRAPH_H_
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