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84 lines
2.2 KiB
C++
84 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/text/ParagraphBuilder.h"
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#include "sky/engine/core/rendering/PaintInfo.h"
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#include "sky/engine/core/rendering/style/RenderStyle.h"
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#include "sky/engine/platform/fonts/FontCache.h"
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#include "sky/engine/platform/graphics/GraphicsContext.h"
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namespace blink {
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Paragraph::Paragraph(PassOwnPtr<RenderView> renderView)
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: m_renderView(renderView)
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{
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}
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Paragraph::~Paragraph()
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{
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}
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double Paragraph::width()
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{
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return firstChildBox()->width();
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}
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double Paragraph::height()
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{
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return firstChildBox()->height();
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}
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double Paragraph::minIntrinsicWidth()
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{
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return firstChildBox()->minPreferredLogicalWidth();
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}
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double Paragraph::maxIntrinsicWidth()
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{
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return firstChildBox()->maxPreferredLogicalWidth();
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}
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double Paragraph::alphabeticBaseline()
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{
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return firstChildBox()->firstLineBoxBaseline(FontBaselineOrAuto(AlphabeticBaseline));
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}
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double Paragraph::ideographicBaseline()
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{
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return firstChildBox()->firstLineBoxBaseline(FontBaselineOrAuto(IdeographicBaseline));
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}
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void Paragraph::layout()
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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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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m_renderView->setFrameViewSize(IntSize(maxWidth, maxHeight));
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m_renderView->layout();
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}
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void Paragraph::paint(Canvas* canvas, const Offset& offset)
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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// Very simplified painting to allow painting an arbitrary (layer-less) subtree.
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RenderBox* box = firstChildBox();
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GraphicsContext context(canvas->skCanvas());
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Vector<RenderBox*> layers;
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LayoutPoint paintOffset(offset.sk_size.width(), offset.sk_size.height());
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LayoutRect bounds = box->absoluteBoundingBoxRect();
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DCHECK(bounds.x() == 0 && bounds.y() == 0);
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bounds.setLocation(paintOffset);
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PaintInfo paintInfo(&context, enclosingIntRect(bounds), box);
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box->paint(paintInfo, paintOffset, layers);
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// Note we're ignoring any layers encountered.
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// TODO(abarth): Remove the concept of RenderLayers.
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}
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} // namespace blink
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