Aspose::Words::DocumentVisitor::VisitOfficeMathEnd method
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[
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]DocumentVisitor::VisitOfficeMathEnd method
Called when enumeration of a Office Math object has ended.
virtual Aspose::Words::VisitorAction Aspose::Words::DocumentVisitor::VisitOfficeMathEnd(System::SharedPtr<Aspose::Words::Math::OfficeMath> officeMath)
Parameter | Type | Description |
---|---|---|
officeMath | System::SharedPtr<Aspose::Words::Math::OfficeMath> | The object that is being visited. |
ReturnValue
A VisitorAction value that specifies how to continue the enumeration.
Examples
Shows how to print the node structure of every office math node in a document.
void OfficeMathToText()
{
auto doc = MakeObject<Document>(MyDir + u"DocumentVisitor-compatible features.docx");
auto visitor = MakeObject<ExDocumentVisitor::OfficeMathStructurePrinter>();
// When we get a composite node to accept a document visitor, the visitor visits the accepting node,
// and then traverses all the node's children in a depth-first manner.
// The visitor can read and modify each visited node.
doc->Accept(visitor);
std::cout << visitor->GetText() << std::endl;
}
class OfficeMathStructurePrinter : public DocumentVisitor
{
public:
OfficeMathStructurePrinter() : mVisitorIsInsideOfficeMath(false), mDocTraversalDepth(0)
{
mBuilder = MakeObject<System::Text::StringBuilder>();
mVisitorIsInsideOfficeMath = false;
}
String GetText()
{
return mBuilder->ToString();
}
VisitorAction VisitRun(SharedPtr<Run> run) override
{
if (mVisitorIsInsideOfficeMath)
{
IndentAndAppendLine(String(u"[Run] \"") + run->GetText() + u"\"");
}
return VisitorAction::Continue;
}
VisitorAction VisitOfficeMathStart(SharedPtr<OfficeMath> officeMath) override
{
IndentAndAppendLine(String(u"[OfficeMath start] Math object type: ") + System::ObjectExt::ToString(officeMath->get_MathObjectType()));
mDocTraversalDepth++;
mVisitorIsInsideOfficeMath = true;
return VisitorAction::Continue;
}
VisitorAction VisitOfficeMathEnd(SharedPtr<OfficeMath> officeMath) override
{
mDocTraversalDepth--;
IndentAndAppendLine(u"[OfficeMath end]");
mVisitorIsInsideOfficeMath = false;
return VisitorAction::Continue;
}
private:
bool mVisitorIsInsideOfficeMath;
int mDocTraversalDepth;
SharedPtr<System::Text::StringBuilder> mBuilder;
void IndentAndAppendLine(String text)
{
for (int i = 0; i < mDocTraversalDepth; i++)
{
mBuilder->Append(u"| ");
}
mBuilder->AppendLine(text);
}
};
See Also
- Enum VisitorAction
- Class OfficeMath
- Class DocumentVisitor
- Namespace Aspose::Words
- Library Aspose.Words for C++