Fix converting angles from tenths of a degree.

(Conversion was upside-down.)

Also fixes bugs with rotation angle increment not getting units
set and with a 0 footprint editor value overwriting a non-zero
pcb editor value (or vice versa).

libs/kimath/include/geometry/eda_angle.h

@@ -52,7 +52,7 @@ public:
             break;
 
         case TENTHS_OF_A_DEGREE_T:
-            m_value = aValue * 10.0;
+            m_value = aValue / 10.0;
             break;
 
         default:

pcbnew/dialogs/panel_edit_options.cpp

@@ -42,6 +42,8 @@ PANEL_EDIT_OPTIONS::PANEL_EDIT_OPTIONS( wxWindow* aParent, EDA_BASE_FRAME* aUnit
     m_flipLeftRight->Show( !m_isFootprintEditor );
     m_allowFreePads->Show( !m_isFootprintEditor );
 
+    m_rotationAngle.SetUnits( EDA_UNITS::DEGREES );
+
 #ifdef __WXOSX_MAC__
     m_mouseCmdsOSX->Show( true );
     m_mouseCmdsWinLin->Show( false );

pcbnew/footprint_editor_settings.cpp

@@ -93,7 +93,8 @@ FOOTPRINT_EDITOR_SETTINGS::FOOTPRINT_EDITOR_SETTINGS() :
             },
             [this] ( int aVal )
             {
-                m_RotationAngle = EDA_ANGLE( aVal, TENTHS_OF_A_DEGREE_T );
+                if( aVal )
+                    m_RotationAngle = EDA_ANGLE( aVal, TENTHS_OF_A_DEGREE_T );
             },
             900 ) );
 

pcbnew/pcbnew_settings.cpp

@@ -139,7 +139,8 @@ PCBNEW_SETTINGS::PCBNEW_SETTINGS()
             },
             [this] ( int aVal )
             {
-                m_RotationAngle = EDA_ANGLE( aVal, TENTHS_OF_A_DEGREE_T );
+                if( aVal )
+                    m_RotationAngle = EDA_ANGLE( aVal, TENTHS_OF_A_DEGREE_T );
             },
             900 ) );