Add ORIGIN_TRANSFORMS to the UNIT_BINDER and EDA_DRAW_FRAME classes

This commit modifies the UNIT_BINDER class to invoke the ORIGIN_TRANSFORMS
methods to support Display Origin Transforms.

The EDA_DRAW_FRAME class is modified to instantiate an ORIGIN_TRANSFORMS
object providing null transforms. A function is provided to allow the
UNIT_BINDER to find the ORIGIN_TRANSFORMS object in an overrideable manner.

common/widgets/unit_binder.cpp

@@ -42,7 +42,9 @@ UNIT_BINDER::UNIT_BINDER( EDA_DRAW_FRAME* aParent,
         m_label( aLabel ),
         m_value( aValue ),
         m_unitLabel( aUnitLabel ),
-        m_eval( aParent->GetUserUnits(), aUseMils )
+        m_eval( aParent->GetUserUnits(), aUseMils ),
+        m_originTransforms( aParent->GetOriginTransforms() ),
+        m_coordType( ORIGIN_TRANSFORMS::NOT_A_COORD )
 {
     m_units     = aParent->GetUserUnits();
     m_useMils   = aUseMils;
@@ -223,13 +225,16 @@ bool UNIT_BINDER::Validate( double aMin, double aMax, EDA_UNITS aUnits, bool aUs
 
 void UNIT_BINDER::SetValue( int aValue )
 {
-    SetValue( StringFromValue( m_units, aValue, false, m_useMils, m_dataType ) );
+    double value = aValue;
+    double displayValue = m_originTransforms.ToDisplay( value, m_coordType );
+    SetValue( StringFromValue( m_units, displayValue, false, m_useMils, m_dataType ) );
 }
 
 
 void UNIT_BINDER::SetDoubleValue( double aValue )
 {
-    SetValue( StringFromValue( m_units, aValue, false, m_useMils, m_dataType ) );
+    double displayValue = m_originTransforms.ToDisplay( aValue, m_coordType );
+    SetValue( StringFromValue( m_units, displayValue, false, m_useMils, m_dataType ) );
 }
 
 
@@ -252,7 +257,9 @@ void UNIT_BINDER::SetValue( wxString aValue )
 
 void UNIT_BINDER::ChangeValue( int aValue )
 {
-    ChangeValue( StringFromValue( m_units, aValue, false, m_useMils ) );
+    double value = aValue;
+    double displayValue = m_originTransforms.ToDisplay( value, m_coordType );
+    ChangeValue( StringFromValue( m_units, displayValue, false, m_useMils ) );
 }
 
 
@@ -291,7 +298,8 @@ long long int UNIT_BINDER::GetValue()
     else
         return 0;
 
-    return ValueFromString( m_units, value, m_useMils, m_dataType );
+    long long int displayValue = ValueFromString( m_units, value, m_useMils, m_dataType );
+    return m_originTransforms.FromDisplay( displayValue, m_coordType );
 }
 
 
@@ -313,7 +321,8 @@ double UNIT_BINDER::GetDoubleValue()
     else
         return 0.0;
 
-    return DoubleValueFromString( m_units, value, m_useMils, m_dataType );
+    double displayValue = DoubleValueFromString( m_units, value, m_useMils, m_dataType );
+    return m_originTransforms.FromDisplay( displayValue, m_coordType );
 }
 
 

include/eda_draw_frame.h

@@ -32,6 +32,7 @@
 #include <gal/gal_display_options.h>
 #include <gal/color4d.h>
 #include <class_draw_panel_gal.h>
+#include <origin_transforms.h>
 #include <wx/fdrepdlg.h>
 #include "hotkeys_basic.h"
 
@@ -72,6 +73,9 @@ class EDA_DRAW_FRAME : public KIWAY_PLAYER
     ///< GAL display options - this is the frame's interface to setting GAL display options
     KIGFX::GAL_DISPLAY_OPTIONS  m_galDisplayOptions;
 
+    /// Default display origin transforms object
+    ORIGIN_TRANSFORMS           m_OriginTransforms;
+
 protected:
     wxSocketServer*             m_socketServer;
     std::vector<wxSocketBase*>  m_sockets;         ///< interprocess communication
@@ -199,6 +203,13 @@ public:
      */
     wxPoint GetNearestGridPosition( const wxPoint& aPosition ) const;
 
+    /**
+     * Return a reference to the default ORIGIN_TRANSFORMS object
+     */
+    virtual ORIGIN_TRANSFORMS& GetOriginTransforms()
+    { return m_OriginTransforms; }
+
+
     virtual const TITLE_BLOCK& GetTitleBlock() const = 0;
     virtual void SetTitleBlock( const TITLE_BLOCK& aTitleBlock ) = 0;
 

include/widgets/unit_binder.h

@@ -29,6 +29,7 @@
 #include <common.h>
 #include <base_units.h>
 #include <base_struct.h>
+#include <origin_transforms.h>
 #include <libeval/numeric_evaluator.h>
 
 
@@ -153,6 +154,25 @@ public:
      */
     void Show( bool aShow, bool aResize = false );
 
+    /**
+     * Get the origin transforms coordinate type
+     *
+     * @returns the origin transforms coordinate type
+     */
+    ORIGIN_TRANSFORMS::COORD_TYPES_T GetCoordType() const
+    {
+        return m_coordType;
+    }
+
+    /**
+     * Function SetOriginTransform
+     * Sets the current origin transform mode
+     */
+    void SetCoordType( ORIGIN_TRANSFORMS::COORD_TYPES_T aCoordType )
+    {
+        m_coordType = aCoordType;
+    }
+
 protected:
 
     void onSetFocus( wxFocusEvent& aEvent );
@@ -184,6 +204,12 @@ protected:
     ///> Selection start and end of the original text
     long              m_selStart;
     long              m_selEnd;
+
+    /// A reference to an ORIGIN_TRANSFORMS object
+    ORIGIN_TRANSFORMS&               m_originTransforms;
+
+    /// Type of coordinate for display origin transforms
+    ORIGIN_TRANSFORMS::COORD_TYPES_T m_coordType;
 };
 
 #endif /* __UNIT_BINDER_H_ */