本文整理汇总了C++中LayoutBlockFlow::firstRootBox方法的典型用法代码示例。如果您正苦于以下问题：C++ LayoutBlockFlow::firstRootBox方法的具体用法？C++ LayoutBlockFlow::firstRootBox怎么用？C++ LayoutBlockFlow::firstRootBox使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LayoutBlockFlow的用法示例。
在下文中一共展示了LayoutBlockFlow::firstRootBox方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: traverseLines
void ColumnBalancer::traverseLines(const LayoutBlockFlow& blockFlow) {
for (const RootInlineBox* line = blockFlow.firstRootBox(); line;
line = line->nextRootBox()) {
LayoutUnit lineTopInFlowThread =
m_flowThreadOffset + line->lineTopWithLeading();
if (lineTopInFlowThread < logicalTopInFlowThread())
continue;
if (lineTopInFlowThread >= logicalBottomInFlowThread())
break;
examineLine(*line);
}
}示例2: valueWithHardLineBreaks
String HTMLTextFormControlElement::valueWithHardLineBreaks() const
{
// FIXME: It's not acceptable to ignore the HardWrap setting when there is no layoutObject.
// While we have no evidence this has ever been a practical problem, it would be best to fix it some day.
HTMLElement* innerText = innerEditorElement();
if (!innerText || !isTextFormControl())
return value();
LayoutBlockFlow* layoutObject = toLayoutBlockFlow(innerText->layoutObject());
if (!layoutObject)
return value();
Node* breakNode;
unsigned breakOffset;
RootInlineBox* line = layoutObject->firstRootBox();
if (!line)
return value();
getNextSoftBreak(line, breakNode, breakOffset);
StringBuilder result;
for (Node& node : NodeTraversal::descendantsOf(*innerText)) {
if (isHTMLBRElement(node)) {
ASSERT(&node == innerText->lastChild());
if (&node != innerText->lastChild())
result.append(newlineCharacter);
} else if (node.isTextNode()) {
String data = toText(node).data();
unsigned length = data.length();
unsigned position = 0;
while (breakNode == node && breakOffset <= length) {
if (breakOffset > position) {
result.append(data, position, breakOffset - position);
position = breakOffset;
result.append(newlineCharacter);
}
getNextSoftBreak(line, breakNode, breakOffset);
}
result.append(data, position, length - position);
}
while (breakNode == node)
getNextSoftBreak(line, breakNode, breakOffset);
}
return result.toString();
}