本文整理汇总了C++中RenderBoxModelObject::isReplaced方法的典型用法代码示例。如果您正苦于以下问题：C++ RenderBoxModelObject::isReplaced方法的具体用法？C++ RenderBoxModelObject::isReplaced怎么用？C++ RenderBoxModelObject::isReplaced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RenderBoxModelObject的用法示例。
在下文中一共展示了RenderBoxModelObject::isReplaced方法的1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: ascentAndDescentForBox
void RootInlineBox::ascentAndDescentForBox(InlineBox* box, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, int& ascent, int& descent,
bool& affectsAscent, bool& affectsDescent) const
{
bool ascentDescentSet = false;
// Replaced boxes will return 0 for the line-height if line-box-contain says they are
// not to be included.
if (box->renderer().isReplaced()) {
if (lineStyle().lineBoxContain() & LineBoxContainReplaced) {
ascent = box->baselinePosition(baselineType());
descent = box->lineHeight() - ascent;
// Replaced elements always affect both the ascent and descent.
affectsAscent = true;
affectsDescent = true;
}
return;
}
Vector<const SimpleFontData*>* usedFonts = 0;
GlyphOverflow* glyphOverflow = 0;
if (box->isInlineTextBox()) {
GlyphOverflowAndFallbackFontsMap::iterator it = textBoxDataMap.find(toInlineTextBox(box));
usedFonts = it == textBoxDataMap.end() ? 0 : &it->value.first;
glyphOverflow = it == textBoxDataMap.end() ? 0 : &it->value.second;
}
bool includeLeading = includeLeadingForBox(box);
bool includeFont = includeFontForBox(box);
bool setUsedFont = false;
bool setUsedFontWithLeading = false;
const RenderStyle& boxLineStyle = box->lineStyle();
#if PLATFORM(IOS)
if (usedFonts && !usedFonts->isEmpty() && (includeFont || (boxLineStyle.lineHeight().isNegative() && includeLeading)) && !box->renderer().document().settings()->alwaysUseBaselineOfPrimaryFont()) {
#else
if (usedFonts && !usedFonts->isEmpty() && (includeFont || (boxLineStyle.lineHeight().isNegative() && includeLeading))) {
#endif
usedFonts->append(boxLineStyle.font().primaryFont());
for (size_t i = 0; i < usedFonts->size(); ++i) {
const FontMetrics& fontMetrics = usedFonts->at(i)->fontMetrics();
int usedFontAscent = fontMetrics.ascent(baselineType());
int usedFontDescent = fontMetrics.descent(baselineType());
int halfLeading = (fontMetrics.lineSpacing() - fontMetrics.height()) / 2;
int usedFontAscentAndLeading = usedFontAscent + halfLeading;
int usedFontDescentAndLeading = fontMetrics.lineSpacing() - usedFontAscentAndLeading;
if (includeFont) {
setAscentAndDescent(ascent, descent, usedFontAscent, usedFontDescent, ascentDescentSet);
setUsedFont = true;
}
if (includeLeading) {
setAscentAndDescent(ascent, descent, usedFontAscentAndLeading, usedFontDescentAndLeading, ascentDescentSet);
setUsedFontWithLeading = true;
}
if (!affectsAscent)
affectsAscent = usedFontAscent - box->logicalTop() > 0;
if (!affectsDescent)
affectsDescent = usedFontDescent + box->logicalTop() > 0;
}
}
// If leading is included for the box, then we compute that box.
if (includeLeading && !setUsedFontWithLeading) {
int ascentWithLeading = box->baselinePosition(baselineType());
int descentWithLeading = box->lineHeight() - ascentWithLeading;
setAscentAndDescent(ascent, descent, ascentWithLeading, descentWithLeading, ascentDescentSet);
// Examine the font box for inline flows and text boxes to see if any part of it is above the baseline.
// If the top of our font box relative to the root box baseline is above the root box baseline, then
// we are contributing to the maxAscent value. Descent is similar. If any part of our font box is below
// the root box's baseline, then we contribute to the maxDescent value.
affectsAscent = ascentWithLeading - box->logicalTop() > 0;
affectsDescent = descentWithLeading + box->logicalTop() > 0;
}
if (includeFontForBox(box) && !setUsedFont) {
int fontAscent = boxLineStyle.fontMetrics().ascent(baselineType());
int fontDescent = boxLineStyle.fontMetrics().descent(baselineType());
setAscentAndDescent(ascent, descent, fontAscent, fontDescent, ascentDescentSet);
affectsAscent = fontAscent - box->logicalTop() > 0;
affectsDescent = fontDescent + box->logicalTop() > 0;
}
if (includeGlyphsForBox(box) && glyphOverflow && glyphOverflow->computeBounds) {
setAscentAndDescent(ascent, descent, glyphOverflow->top, glyphOverflow->bottom, ascentDescentSet);
affectsAscent = glyphOverflow->top - box->logicalTop() > 0;
affectsDescent = glyphOverflow->bottom + box->logicalTop() > 0;
glyphOverflow->top = std::min(glyphOverflow->top, std::max(0, glyphOverflow->top - boxLineStyle.fontMetrics().ascent(baselineType())));
glyphOverflow->bottom = std::min(glyphOverflow->bottom, std::max(0, glyphOverflow->bottom - boxLineStyle.fontMetrics().descent(baselineType())));
}
if (includeMarginForBox(box)) {
LayoutUnit ascentWithMargin = boxLineStyle.fontMetrics().ascent(baselineType());
LayoutUnit descentWithMargin = boxLineStyle.fontMetrics().descent(baselineType());
if (box->parent() && !box->renderer().isTextOrLineBreak()) {
ascentWithMargin += box->boxModelObject()->borderAndPaddingBefore() + box->boxModelObject()->marginBefore();
descentWithMargin += box->boxModelObject()->borderAndPaddingAfter() + box->boxModelObject()->marginAfter();
}
setAscentAndDescent(ascent, descent, ascentWithMargin, descentWithMargin, ascentDescentSet);
//.........这里部分代码省略.........