Esempi in C++ (Cpp) per LayoutSize::clampNegativeToZero

Esempio n. 1

void ShapeOutsideInfo::setReferenceBoxLogicalSize(
    LayoutSize newReferenceBoxLogicalSize) {
  bool isHorizontalWritingMode =
      m_layoutBox.containingBlock()->style()->isHorizontalWritingMode();
  switch (referenceBox(*m_layoutBox.style()->shapeOutside())) {
    case MarginBox:
      if (isHorizontalWritingMode)
        newReferenceBoxLogicalSize.expand(m_layoutBox.marginWidth(),
                                          m_layoutBox.marginHeight());
      else
        newReferenceBoxLogicalSize.expand(m_layoutBox.marginHeight(),
                                          m_layoutBox.marginWidth());
      break;
    case BorderBox:
      break;
    case PaddingBox:
      if (isHorizontalWritingMode)
        newReferenceBoxLogicalSize.shrink(m_layoutBox.borderWidth(),
                                          m_layoutBox.borderHeight());
      else
        newReferenceBoxLogicalSize.shrink(m_layoutBox.borderHeight(),
                                          m_layoutBox.borderWidth());
      break;
    case ContentBox:
      if (isHorizontalWritingMode)
        newReferenceBoxLogicalSize.shrink(m_layoutBox.borderAndPaddingWidth(),
                                          m_layoutBox.borderAndPaddingHeight());
      else
        newReferenceBoxLogicalSize.shrink(m_layoutBox.borderAndPaddingHeight(),
                                          m_layoutBox.borderAndPaddingWidth());
      break;
    case BoxMissing:
      ASSERT_NOT_REACHED();
      break;
  }

  newReferenceBoxLogicalSize.clampNegativeToZero();

  if (m_referenceBoxLogicalSize == newReferenceBoxLogicalSize)
    return;
  markShapeAsDirty();
  m_referenceBoxLogicalSize = newReferenceBoxLogicalSize;
}