Base: Add Color parameter Type

This adds Color parameter type to the ParameterGroup. Internally colors
are stored as unsigned longs so it only is convienance layer.

src/Base/Parameter.cpp

@@ -1252,6 +1252,55 @@ void ParameterGrp::RemoveUnsigned(const char* Name)
     Notify(Name);
 }
 
+Base::Color ParameterGrp::GetColor(const char* Name, Base::Color lPreset) const
+{
+    auto packed = GetUnsigned(Name, lPreset.getPackedValue());
+
+    return Color(static_cast<uint32_t>(packed));
+}
+
+void ParameterGrp::SetColor(const char* Name, Base::Color lValue)
+{
+    SetUnsigned(Name, lValue.getPackedValue());
+}
+
+std::vector<Base::Color> ParameterGrp::GetColors(const char* sFilter) const
+{
+    auto packed = GetUnsigneds(sFilter);
+    std::vector<Base::Color> result;
+
+    std::transform(packed.begin(),
+                   packed.end(),
+                   std::back_inserter(result),
+                   [](const unsigned long lValue) {
+                       return Color(static_cast<uint32_t>(lValue));
+                   });
+
+    return result;
+}
+
+std::vector<std::pair<std::string, Base::Color>>
+ParameterGrp::GetColorMap(const char* sFilter) const
+{
+    auto packed = GetUnsignedMap(sFilter);
+    std::vector<std::pair<std::string, Base::Color>> result;
+
+    std::transform(packed.begin(),
+                   packed.end(),
+                   std::back_inserter(result),
+                   [](const std::pair<std::string, unsigned long>& lValue) {
+                       return std::make_pair(lValue.first,
+                                             Color(static_cast<uint32_t>(lValue.second)));
+                   });
+
+    return result;
+}
+
+void ParameterGrp::RemoveColor(const char* Name)
+{
+    RemoveUnsigned(Name);
+}
+
 void ParameterGrp::RemoveGrp(const char* Name)
 {
     if (!_pGroupNode) {

src/Base/Parameter.h

@@ -31,7 +31,6 @@
 
 #ifndef BASE_PARAMETER_H
 #define BASE_PARAMETER_H
-#include <Base/Color.h>
 
 // Python stuff
 using PyObject = struct _object;
@@ -57,6 +56,7 @@ using PyObject = struct _object;
 
 #include "Handle.h"
 #include "Observer.h"
+#include "Color.h"
 
 #ifdef _MSC_VER
 #pragma warning(disable : 4251)
@@ -89,7 +89,6 @@ XERCES_CPP_NAMESPACE_END
 
 class ParameterManager;
 
-
 /** The parameter container class
  *  This is the base class of all classes handle parameter.
  *  The class contains a map of key-value pairs in a grouping
@@ -308,6 +307,21 @@ public:
     void RemoveUnsigned(const char* Name);
     //@}
 
+    /** @name methods for Colors handling, colors are persisted as packed uints */
+    //@{
+    /// read color value or give default
+    Base::Color GetColor(const char* Name, Base::Color lPreset = Base::Color(1.0, 1.0, 1.0)) const;
+    /// set a color value
+    void SetColor(const char* Name, Base::Color lValue);
+    /// get a vector of all color values in this group
+    std::vector<Base::Color> GetColors(const char* sFilter = nullptr) const;
+    /// get a map with all color values and the keys of this group
+    std::vector<std::pair<std::string, Base::Color>>
+    GetColorMap(const char* sFilter = nullptr) const;
+    /// remove a color value from this group
+    void RemoveColor(const char* Name);
+    //@}
+
 
     /** @name methods for Float handling */
     //@{