本文整理汇总了C++中SPObject::firstChild方法的典型用法代码示例。如果您正苦于以下问题：C++ SPObject::firstChild方法的具体用法？C++ SPObject::firstChild怎么用？C++ SPObject::firstChild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SPObject的用法示例。
在下文中一共展示了SPObject::firstChild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:
SPItem *SPFlowtext::get_frame(SPItem *after)
{
SPItem *frame = 0;
SPObject *region = 0;
for (SPObject *o = firstChild() ; o ; o = o->getNext() ) {
if (SP_IS_FLOWREGION(o)) {
region = o;
break;
}
}
if (region) {
bool past = false;
for (SPObject *o = region->firstChild() ; o ; o = o->getNext() ) {
if (SP_IS_ITEM(o)) {
if ( (after == NULL) || past ) {
frame = SP_ITEM(o);
} else {
if (SP_ITEM(o) == after) {
past = true;
}
}
}
}
if ( frame && SP_IS_USE(frame) ) {
frame = SP_USE(frame)->get_original();
}
}
return frame;
}示例2: setTitleOrDesc
bool SPObject::setTitleOrDesc(gchar const *value, gchar const *svg_tagname, bool verbatim)
{
if (!verbatim) {
// If the new title/description is just whitespace,
// treat it as though it were NULL.
if (value) {
bool just_whitespace = true;
for (const gchar *cp = value; *cp; ++cp) {
if (!std::strchr("\r\n \t", *cp)) {
just_whitespace = false;
break;
}
}
if (just_whitespace) {
value = NULL;
}
}
// Don't stomp on mark-up if there is no real change.
if (value) {
gchar *current_value = getTitleOrDesc(svg_tagname);
if (current_value) {
bool different = std::strcmp(current_value, value);
g_free(current_value);
if (!different) {
return false;
}
}
}
}
SPObject *elem = findFirstChild(svg_tagname);
if (value == NULL) {
if (elem == NULL) {
return false;
}
// delete the title/description(s)
while (elem) {
elem->deleteObject();
elem = findFirstChild(svg_tagname);
}
return true;
}
Inkscape::XML::Document *xml_doc = document->getReprDoc();
if (elem == NULL) {
// create a new 'title' or 'desc' element, putting it at the
// beginning (in accordance with the spec's recommendations)
Inkscape::XML::Node *xml_elem = xml_doc->createElement(svg_tagname);
repr->addChild(xml_elem, NULL);
elem = document->getObjectByRepr(xml_elem);
Inkscape::GC::release(xml_elem);
}
else {
// remove the current content of the 'text' or 'desc' element
SPObject *child;
while (NULL != (child = elem->firstChild())) child->deleteObject();
}
// add the new content
elem->appendChildRepr(xml_doc->createTextNode(value));
return true;
}