DocumentIstream& DrawingDocument::LoadObject(DocumentIstream& istream)
{
#if wxUSE_STD_IOSTREAM
DocumentIstream& stream = istream;
#else
wxTextInputStream stream(istream);
#endif
wxDocument::LoadObject(istream);
wxInt32 count = 0;
stream >> count;
if ( count < 0 )
{
wxLogWarning("Drawing document corrupted: invalid segments count.");
#if wxUSE_STD_IOSTREAM
istream.clear(std::ios::badbit);
#else
istream.Reset(wxSTREAM_READ_ERROR);
#endif
return istream;
}
for ( int n = 0; n < count; n++ )
{
DoodleSegment segment;
segment.LoadObject(istream);
m_doodleSegments.push_back(segment);
}
return istream;
}
// Sneakily gets used for default print/preview
// as well as drawing on the screen.
void DrawingView::OnDraw(wxDC *dc)
{
dc->SetFont(*wxNORMAL_FONT);
dc->SetPen(*wxBLACK_PEN);
wxList::compatibility_iterator node = ((DrawingDocument *)GetDocument())->GetDoodleSegments().GetFirst();
while (node)
{
DoodleSegment *seg = (DoodleSegment *)node->GetData();
seg->Draw(dc);
node = node->GetNext();
}
}
wxSTD istream& DrawingDocument::LoadObject(wxSTD istream& stream)
{
wxDocument::LoadObject(stream);
wxInt32 n = 0;
stream >> n;
for (int i = 0; i < n; i++)
{
DoodleSegment *segment = new DoodleSegment;
segment->LoadObject(stream);
doodleSegments.Append(segment);
}
return stream;
}
wxSTD ostream& DrawingDocument::SaveObject(wxSTD ostream& stream)
{
wxDocument::SaveObject(stream);
wxInt32 n = doodleSegments.GetCount();
stream << n << _T('\n');
wxList::compatibility_iterator node = doodleSegments.GetFirst();
while (node)
{
DoodleSegment *segment = (DoodleSegment *)node->GetData();
segment->SaveObject(stream);
stream << _T('\n');
node = node->GetNext();
}
return stream;
}
DocumentIstream& DrawingDocument::LoadObject(DocumentIstream& istream)
{
#if wxUSE_STD_IOSTREAM
DocumentIstream& stream = istream;
#else
wxTextInputStream stream(istream);
#endif
wxDocument::LoadObject(istream);
wxInt32 count = 0;
stream >> count;
for ( int n = 0; n < count; n++ )
{
DoodleSegment segment;
segment.LoadObject(istream);
m_doodleSegments.push_back(segment);
}
return istream;
}