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437cedf45e
Instead, just store the default font sizes in statics. These statics are constants for now, but we'll probably make them configurable at some point.
86 lines
2.2 KiB
C++
86 lines
2.2 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/painting/LayoutRoot.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/Element.h"
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#include "sky/engine/core/frame/FrameView.h"
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#include "sky/engine/core/frame/LocalFrame.h"
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#include "sky/engine/core/frame/Settings.h"
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#include "sky/engine/core/painting/Canvas.h"
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#include "sky/engine/platform/geometry/IntRect.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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namespace blink {
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PassRefPtr<LayoutRoot> LayoutRoot::create()
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{
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return adoptRef(new LayoutRoot);
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}
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LayoutRoot::LayoutRoot()
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: m_minWidth(0)
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, m_maxWidth(0)
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, m_minHeight(0)
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, m_maxHeight(0)
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{
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m_settings = Settings::create();
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m_frameHost = FrameHost::createDummy(m_settings.get());
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m_frame = LocalFrame::create(nullptr, m_frameHost.get());
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m_frame->createView(IntSize(), Color::white, false);
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}
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LayoutRoot::~LayoutRoot()
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{
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if (!m_document->needsAttach())
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m_document->detach();
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}
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Element* LayoutRoot::rootElement() const
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{
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if (!m_document)
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return nullptr;
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return m_document->firstElementChild();
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}
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void LayoutRoot::setRootElement(Element* root)
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{
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m_document = &root->document();
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m_frame->setDocument(m_document.get());
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m_document->setFrame(m_frame.get());
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m_document->attach();
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m_document->setChild(root, ASSERT_NO_EXCEPTION);
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m_document->setFrame(nullptr);
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m_frame->setDocument(nullptr);
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}
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void LayoutRoot::layout()
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{
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m_frame->setDocument(m_document.get());
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m_document->setFrame(m_frame.get());
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LayoutUnit maxWidth = std::max(m_minWidth, m_maxWidth);
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LayoutUnit maxHeight = std::max(m_minHeight, m_maxHeight);
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IntSize maxSize(maxWidth, maxHeight);
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m_frame->view()->setFrameRect(IntRect(IntPoint(), maxSize));
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m_frame->view()->setLayoutSize(maxSize);
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m_document->updateLayout();
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m_document->setFrame(nullptr);
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m_frame->setDocument(nullptr);
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}
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void LayoutRoot::paint(Canvas* canvas)
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{
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if (m_document && rootElement() && canvas && canvas->skCanvas())
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rootElement()->paint(canvas);
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}
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} // namespace blink
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