// ParseCellTag
// This function is responsible for creating
// a tree of groupcells when loading XML document.
// Any changes in GroupCell structure or methods
// has to be reflected here in order to ensure proper
// loading of WXMX files.
MathCell* MathParser::ParseCellTag(wxXmlNode* node)
{
GroupCell *group = NULL;
// read hide status
#if wxCHECK_VERSION(2,9,0)
bool hide = (node->GetAttribute(wxT("hide"), wxT("false")) == wxT("true")) ? true : false;
#else
bool hide = (node->GetPropVal(wxT("hide"), wxT("false")) == wxT("true")) ? true : false;
#endif
// read (group)cell type
#if wxCHECK_VERSION(2,9,0)
wxString type = node->GetAttribute(wxT("type"), wxT("text"));
#else
wxString type = node->GetPropVal(wxT("type"), wxT("text"));
#endif
if (type == wxT("code")) {
group = new GroupCell(GC_TYPE_CODE);
wxXmlNode *children = node->GetChildren();
while (children) {
if (children->GetName() == wxT("input")) {
MathCell *editor = ParseTag(children->GetChildren());
group->SetEditableContent(editor->GetValue());
delete editor;
}
if (children->GetName() == wxT("output"))
group->AppendOutput(ParseTag(children->GetChildren()));
children = children->GetNext();
}
}
else if (type == wxT("image")) {
group = new GroupCell(GC_TYPE_IMAGE);
wxXmlNode *children = node->GetChildren();
while (children) {
if (children->GetName() == wxT("editor")) {
MathCell *ed = ParseEditorTag(children);
group->SetEditableContent(ed->GetValue());
delete ed;
}
else
group->AppendOutput(ParseTag(children));
children = children->GetNext();
}
}
else if (type == wxT("pagebreak")) {
group = new GroupCell(GC_TYPE_PAGEBREAK);
}
else if (type == wxT("text")) {
group = new GroupCell(GC_TYPE_TEXT);
MathCell *editor = ParseTag(node->GetChildren());
group->SetEditableContent(editor->GetValue());
delete editor;
}
else {
// text types
if (type == wxT("title"))
group = new GroupCell(GC_TYPE_TITLE);
else if (type == wxT("section"))
group = new GroupCell(GC_TYPE_SECTION);
else if (type == wxT("subsection"))
group = new GroupCell(GC_TYPE_SUBSECTION);
else
return NULL;
wxXmlNode *children = node->GetChildren();
while (children) {
if (children->GetName() == wxT("editor")) {
MathCell *ed = ParseEditorTag(children);
group->SetEditableContent(ed->GetValue());
delete ed;
}
else if (children->GetName() == wxT("fold")) { // we have folded groupcells
wxXmlNode *xmlcells = children->GetChildren();
MathCell *tree = NULL;
MathCell *last = NULL;
if (xmlcells) {
last = tree = ParseTag(xmlcells, false); // first cell
while (xmlcells->GetNext()) {
xmlcells = xmlcells->GetNext();
MathCell *cell = ParseTag(xmlcells, false);
last->m_next = last->m_nextToDraw = cell;
last->m_next->m_previous = last->m_next->m_previousToDraw = last;
last = last->m_next;
}
if (tree)
group->HideTree((GroupCell *)tree);
}
}
children = children->GetNext();
}
}
group->SetParent(group, false);
group->Hide(hide);
return group;
}
