blob: 7a614edff72e02e0e357cfb0e432e0d83432eec7 (
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--- a/tview.cpp
+++ b/tview.cpp
@@ -208,7 +208,7 @@
pictureFileName, wxT("SVG vector picture files (*.svg)|*.svg"),
wxSAVE|wxOVERWRITE_PROMPT);
- if (dialog.ShowModal() == wxID_OK)
+ if ((dialog.ShowModal() == wxID_OK) && (p.GetNumTrees() != 0))
{
wxSVGFileDC pictureDC (dialog.GetPath(), 600, 650) ;
OnDraw (&pictureDC);
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