+ const bool hasOnlyRefAttr = node.GetAttributes() != NULL &&
+ node.GetAttributes()->GetNext() == NULL;
+
+ if ( hasOnlyRefAttr && !node.GetChildren() )
+ {
+ // In the typical, simple case, <object_ref> is used to link
+ // to another node and doesn't have any content of its own that
+ // would overwrite linked object's properties. In this case,
+ // we can simply create the resource from linked node.
+
+ return DoCreateResFromNode(*refNode, parent, instance);
+ }
+ else
+ {
+ // In the more complicated (but rare) case, <object_ref> has
+ // subnodes that partially overwrite content of the referenced
+ // object. In this case, we need to merge both XML trees and
+ // load the resource from result of the merge.
+
+ wxXmlNode copy(*refNode);
+ MergeNodesOver(copy, node, GetFileNameFromNode(&node, Data()));
+
+ // remember referenced object's file, see GetFileNameFromNode()
+ copy.AddAttribute(ATTR_INPUT_FILENAME,
+ GetFileNameFromNode(refNode, Data()));
+
+ return DoCreateResFromNode(copy, parent, instance);
+ }
+ }
+
+ if (handlerToUse)
+ {
+ if (handlerToUse->CanHandle(&node))
+ {
+ return handlerToUse->CreateResource(&node, parent, instance);
+ }
+ }
+ else if (node.GetName() == wxT("object"))
+ {
+ for ( wxVector<wxXmlResourceHandler*>::iterator h = m_handlers.begin();
+ h != m_handlers.end(); ++h )
+ {
+ wxXmlResourceHandler *handler = *h;
+ if (handler->CanHandle(&node))
+ return handler->CreateResource(&node, parent, instance);
+ }
+ }
+
+ ReportError
+ (
+ &node,
+ wxString::Format
+ (
+ "no handler found for XML node \"%s\" (class \"%s\")",
+ node.GetName(),
+ node.GetAttribute("class", wxEmptyString)
+ )
+ );
+ return NULL;
+}
+
+wxIdRange::wxIdRange(const wxXmlNode* node,
+ const wxString& rname,
+ const wxString& startno,
+ const wxString& rsize)
+ : m_name(rname),
+ m_start(0),
+ m_size(0),
+ m_item_end_found(0),
+ m_finalised(0)
+{
+ long l;
+ if ( startno.ToLong(&l) )
+ {
+ if ( l >= 0 )
+ {
+ m_start = l;
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "a negative id-range start parameter was given"
+ );
+ }
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "the id-range start parameter was malformed"
+ );
+ }
+
+ unsigned long ul;
+ if ( rsize.ToULong(&ul) )
+ {
+ m_size = ul;
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "the id-range size parameter was malformed"
+ );
+ }
+}
+
+void wxIdRange::NoteItem(const wxXmlNode* node, const wxString& item)
+{
+ // Nothing gets added here, but the existence of each item is noted
+ // thus getting an accurate count. 'item' will be either an integer e.g.
+ // [0] [123]: will eventually create an XRCID as start+integer or [start]
+ // or [end] which are synonyms for [0] or [range_size-1] respectively.
+ wxString content(item.Mid(1, item.length()-2));
+
+ // Check that basename+item wasn't foo[]
+ if (content.empty())
+ {
+ wxXmlResource::Get()->ReportError(node, "an empty id-range item found");
+ return;
+ }
+
+ if (content=="start")
+ {
+ // "start" means [0], so store that in the set
+ if (m_indices.count(0) == 0)
+ {
+ m_indices.insert(0);
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "duplicate id-range item found"
+ );
+ }
+ }
+ else if (content=="end")
+ {
+ // We can't yet be certain which XRCID this will be equivalent to, so
+ // just note that there's an item with this name, in case we need to
+ // inc the range size
+ m_item_end_found = true;
+ }
+ else
+ {
+ // Anything else will be an integer, or rubbish
+ unsigned long l;
+ if ( content.ToULong(&l) )
+ {
+ if (m_indices.count(l) == 0)
+ {
+ m_indices.insert(l);
+ // Check that this item wouldn't fall outside the current range
+ // extent
+ if (l >= m_size)
+ {
+ m_size = l + 1;
+ }
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "duplicate id-range item found"
+ );
+ }
+
+ }
+ else
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "an id-range item had a malformed index"
+ );
+ }
+ }
+}
+
+void wxIdRange::Finalise(const wxXmlNode* node)
+{
+ wxCHECK_RET( !IsFinalised(),
+ "Trying to finalise an already-finalised range" );
+
+ // Now we know about all the items, we can get an accurate range size
+ // Expand any requested range-size if there were more items than would fit
+ m_size = wxMax(m_size, m_indices.size());
+
+ // If an item is explicitly called foo[end], ensure it won't clash with
+ // another item
+ if ( m_item_end_found && m_indices.count(m_size-1) )
+ ++m_size;
+ if (m_size == 0)
+ {
+ // This will happen if someone creates a range but no items in this xrc
+ // file Report the error and abort, but don't finalise, in case items
+ // appear later
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "trying to create an empty id-range"
+ );
+ return;
+ }
+
+ if (m_start==0)
+ {
+ // This is the usual case, where the user didn't specify a start ID
+ // So get the range using NewControlId().
+ //
+ // NB: negative numbers, but NewControlId already returns the most
+ // negative
+ m_start = wxWindow::NewControlId(m_size);
+ wxCHECK_RET( m_start != wxID_NONE,
+ "insufficient IDs available to create range" );
+ m_end = m_start + m_size - 1;
+ }
+ else
+ {
+ // The user already specified a start value, which must be positive
+ m_end = m_start + m_size - 1;
+ }
+
+ // Create the XRCIDs
+ for (int i=m_start; i <= m_end; ++i)
+ {
+ // Ensure that we overwrite any existing value as otherwise
+ // wxXmlResource::Unload() followed by Load() wouldn't work correctly.
+ XRCID_Assign(m_name + wxString::Format("[%i]", i-m_start), i);
+
+ wxLogTrace("xrcrange",
+ "integer = %i %s now returns %i",
+ i,
+ m_name + wxString::Format("[%i]", i-m_start),
+ XRCID((m_name + wxString::Format("[%i]", i-m_start)).mb_str()));
+ }
+ // and these special ones
+ XRCID_Assign(m_name + "[start]", m_start);
+ XRCID_Assign(m_name + "[end]", m_end);
+ wxLogTrace("xrcrange","%s[start] = %i %s[end] = %i",
+ m_name.mb_str(),XRCID(wxString(m_name+"[start]").mb_str()),
+ m_name.mb_str(),XRCID(wxString(m_name+"[end]").mb_str()));
+
+ m_finalised = true;
+}
+
+wxIdRangeManager *wxIdRangeManager::ms_instance = NULL;
+
+/*static*/ wxIdRangeManager *wxIdRangeManager::Get()
+{
+ if ( !ms_instance )
+ ms_instance = new wxIdRangeManager;
+ return ms_instance;
+}
+
+/*static*/ wxIdRangeManager *wxIdRangeManager::Set(wxIdRangeManager *res)
+{
+ wxIdRangeManager *old = ms_instance;
+ ms_instance = res;
+ return old;
+}
+
+wxIdRangeManager::~wxIdRangeManager()
+{
+ for ( wxVector<wxIdRange*>::iterator i = m_IdRanges.begin();
+ i != m_IdRanges.end(); ++i )
+ {
+ delete *i;
+ }
+ m_IdRanges.clear();
+
+ delete ms_instance;
+}
+
+void wxIdRangeManager::AddRange(const wxXmlNode* node)
+{
+ wxString name = node->GetAttribute("name");
+ wxString start = node->GetAttribute("start", "0");
+ wxString size = node->GetAttribute("size", "0");
+ if (name.empty())
+ {
+ wxXmlResource::Get()->ReportError
+ (
+ node,
+ "xrc file contains an id-range without a name"
+ );
+ return;
+ }
+
+ int index = Find(name);
+ if (index == wxNOT_FOUND)
+ {
+ wxLogTrace("xrcrange",
+ "Adding ID range, name=%s start=%s size=%s",
+ name, start, size);
+
+ m_IdRanges.push_back(new wxIdRange(node, name, start, size));
+ }
+ else
+ {
+ // There was already a range with this name. Let's hope this is
+ // from an Unload()/(re)Load(), not an unintentional duplication
+ wxLogTrace("xrcrange",
+ "Replacing ID range, name=%s start=%s size=%s",
+ name, start, size);
+
+ wxIdRange* oldrange = m_IdRanges.at(index);
+ m_IdRanges.at(index) = new wxIdRange(node, name, start, size);
+ delete oldrange;
+ }
+}
+
+wxIdRange *
+wxIdRangeManager::FindRangeForItem(const wxXmlNode* node,
+ const wxString& item,
+ wxString& value) const
+{
+ wxString basename = item.BeforeFirst('[');
+ wxCHECK_MSG( !basename.empty(), NULL,
+ "an id-range item without a range name" );
+
+ int index = Find(basename);
+ if (index == wxNOT_FOUND)
+ {
+ // Don't assert just because we've found an unexpected foo[123]
+ // Someone might just want such a name, nothing to do with ranges
+ return NULL;
+ }
+
+ value = item.Mid(basename.Len());
+ if (value.at(value.length()-1)==']')
+ {
+ return m_IdRanges.at(index);
+ }
+ wxXmlResource::Get()->ReportError(node, "a malformed id-range item");
+ return NULL;
+}
+
+void
+wxIdRangeManager::NotifyRangeOfItem(const wxXmlNode* node,
+ const wxString& item) const
+{
+ wxString value;
+ wxIdRange* range = FindRangeForItem(node, item, value);
+ if (range)
+ range->NoteItem(node, value);
+}
projects / wxWidgets.git / blobdiff