Don't assume a schematic. (KICAD-G7S)

4 months ago · 4b510c59f9
1 changed files with 3 additions and 0 deletions
--- a/eeschema/tools/sch_navigate_tool.cpp
+++ b/eeschema/tools/sch_navigate_tool.cpp
@ -218,6 +218,9 @@ bool SCH_NAVIGATE_TOOL::CanGoPrevious()

 bool SCH_NAVIGATE_TOOL::CanGoNext()
 {
+    if( !m_frame->Schematic().IsValid() )
+        return false;
+
    return m_frame->GetCurrentSheet().GetVirtualPageNumber()
           < (int) m_frame->Schematic().Hierarchy().size();
 }