ADDED support for simulation plot margins and GUI for Y axis locking.

eeschema/sim/sim_plot_tab.cpp

@@ -401,8 +401,8 @@ void CURSOR::UpdateReference()
 }
 
 
-SIM_PLOT_TAB::SIM_PLOT_TAB( const wxString& aSimCommand, unsigned aSimOptions, wxWindow* parent ) :
-        SIM_TAB( aSimCommand, aSimOptions, parent ),
+SIM_PLOT_TAB::SIM_PLOT_TAB( const wxString& aSimCommand, wxWindow* parent ) :
+        SIM_TAB( aSimCommand, parent ),
         m_axis_x( nullptr ),
         m_axis_y1( nullptr ),
         m_axis_y2( nullptr ),
@@ -438,6 +438,40 @@ SIM_PLOT_TAB::~SIM_PLOT_TAB()
 }
 
 
+void SIM_PLOT_TAB::SetY1Scale( bool aLock, double aMin, double aMax )
+{
+    m_axis_y1->SetAxisMinMax( aLock, aMin, aMax );
+
+    if( aLock )
+    {
+        m_plotWin->Fit( m_plotWin->GetDesiredXmin(), m_plotWin->GetDesiredXmax(),
+                        m_axis_y1->TransformToPlot( aMin ), m_axis_y1->TransformToPlot( aMax ) );
+        m_plotWin->LockY( true );
+        m_plotWin->AdjustLimitedView();
+    }
+    else
+    {
+        m_plotWin->LockY( false );
+    }
+}
+
+
+void SIM_PLOT_TAB::SetY2Scale( bool aLock, double aMin, double aMax )
+{
+    m_axis_y2->SetAxisMinMax( aLock, aMin, aMax );
+
+    // TODO: de-couple Y2 from Y1 and independently set Y2's scale
+}
+
+
+void SIM_PLOT_TAB::SetY3Scale( bool aLock, double aMin, double aMax )
+{
+    m_axis_y3->SetAxisMinMax( aLock, aMin, aMax );
+
+    // TODO: de-couple Y2 from Y1 and independently set Y2's scale
+}
+
+
 wxString SIM_PLOT_TAB::GetUnitsX() const
 {
     LOG_SCALE<mpScaleXLog>* logScale = dynamic_cast<LOG_SCALE<mpScaleXLog>*>( m_axis_x );
@@ -958,4 +992,21 @@ void SIM_PLOT_TAB::ResetScales( bool aIncludeX )
 }
 
 
+void SIM_PLOT_TAB::FitScales()
+{
+    GetPlotWin()->Fit();
+
+    double min, max;
+
+    if( m_axis_y1 && m_axis_y1->GetAxisMinMax( &min, &max ) )
+        SetY1Scale( true, min, max );
+
+    if( m_axis_y2 && m_axis_y2->GetAxisMinMax( &min, &max ) )
+        SetY2Scale( true, min, max );
+
+    if( m_axis_y3 && m_axis_y3->GetAxisMinMax( &min, &max ) )
+        SetY3Scale( true, min, max );
+}
+
+
 wxDEFINE_EVENT( EVT_SIM_CURSOR_UPDATE, wxCommandEvent );