| /* |
| * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/rendering/exclusions/ExclusionShapeInfo.h" |
| |
| #include "core/rendering/exclusions/ExclusionShape.h" |
| #include "core/rendering/RenderBlock.h" |
| #include "core/rendering/RenderBox.h" |
| #include "core/rendering/RenderRegion.h" |
| #include "core/rendering/style/RenderStyle.h" |
| |
| namespace WebCore { |
| template<class RenderType, ExclusionShapeValue* (RenderStyle::*shapeGetter)() const, void (ExclusionShape::*intervalGetter)(LayoutUnit, LayoutUnit, SegmentList&) const> |
| const ExclusionShape* ExclusionShapeInfo<RenderType, shapeGetter, intervalGetter>::computedShape() const |
| { |
| if (ExclusionShape* exclusionShape = m_shape.get()) |
| return exclusionShape; |
| |
| ExclusionShapeValue* shapeValue = (m_renderer->style()->*shapeGetter)(); |
| BasicShape* shape = (shapeValue && shapeValue->type() == ExclusionShapeValue::SHAPE) ? shapeValue->shape() : 0; |
| |
| ASSERT(shape); |
| |
| m_shape = ExclusionShape::createExclusionShape(shape, LayoutSize(m_shapeLogicalWidth, m_shapeLogicalHeight), m_renderer->style()->writingMode(), m_renderer->style()->shapeMargin(), m_renderer->style()->shapePadding()); |
| ASSERT(m_shape); |
| return m_shape.get(); |
| } |
| |
| template<class RenderType, ExclusionShapeValue* (RenderStyle::*shapeGetter)() const, void (ExclusionShape::*intervalGetter)(LayoutUnit, LayoutUnit, SegmentList&) const> |
| LayoutUnit ExclusionShapeInfo<RenderType, shapeGetter, intervalGetter>::logicalTopOffset() const |
| { |
| LayoutUnit logicalTopOffset = m_renderer->style()->boxSizing() == CONTENT_BOX ? m_renderer->borderBefore() + m_renderer->paddingBefore() : LayoutUnit(); |
| // Content in a flow thread is relative to the beginning of the thread, but the shape calculation should be relative to the current region. |
| if (m_renderer->isRenderRegion()) |
| logicalTopOffset += toRenderRegion(m_renderer)->logicalTopForFlowThreadContent(); |
| return logicalTopOffset; |
| } |
| |
| template<class RenderType, ExclusionShapeValue* (RenderStyle::*shapeGetter)() const, void (ExclusionShape::*intervalGetter)(LayoutUnit, LayoutUnit, SegmentList&) const> |
| bool ExclusionShapeInfo<RenderType, shapeGetter, intervalGetter>::computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight) |
| { |
| ASSERT(lineHeight >= 0); |
| m_shapeLineTop = lineTop - logicalTopOffset(); |
| m_lineHeight = lineHeight; |
| m_segments.clear(); |
| |
| if (lineOverlapsShapeBounds()) |
| (computedShape()->*intervalGetter)(m_shapeLineTop, std::min(m_lineHeight, shapeLogicalBottom() - lineTop), m_segments); |
| |
| LayoutUnit logicalLeftOffset = this->logicalLeftOffset(); |
| for (size_t i = 0; i < m_segments.size(); i++) { |
| m_segments[i].logicalLeft += logicalLeftOffset; |
| m_segments[i].logicalRight += logicalLeftOffset; |
| } |
| |
| return m_segments.size(); |
| } |
| |
| template class ExclusionShapeInfo<RenderBlock, &RenderStyle::resolvedShapeInside, &ExclusionShape::getIncludedIntervals>; |
| template class ExclusionShapeInfo<RenderBox, &RenderStyle::shapeOutside, &ExclusionShape::getExcludedIntervals>; |
| } |