From: timoore <timoore>
Date: Wed, 15 Jul 2009 23:08:01 +0000 (+0000)
Subject: Add VEC3D and VEC4D property types
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=d4c6530a7222deafd2a7dac67f3c88d461766235;p=simgear.git

Add VEC3D and VEC4D property types

Add "extended" argument to readProperties, which controls whether the vector
 property types are accepted by the XML reader.
---

diff --git a/simgear/props/props.cxx b/simgear/props/props.cxx
index 042275e4..9db543b6 100644
--- a/simgear/props/props.cxx
+++ b/simgear/props/props.cxx
@@ -15,6 +15,8 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <simgear/math/SGMath.hxx>
+
 #if PROPS_STANDALONE
 #include <iostream>
 #else
@@ -78,6 +80,8 @@ template<> const long SGRawValue<long>::DefaultValue = 0L;
 template<> const float SGRawValue<float>::DefaultValue = 0.0;
 template<> const double SGRawValue<double>::DefaultValue = 0.0L;
 template<> const char * const SGRawValue<const char *>::DefaultValue = "";
+template<> const SGVec3d SGRawValue<SGVec3d>::DefaultValue = SGVec3d();
+template<> const SGVec4d SGRawValue<SGVec4d>::DefaultValue = SGVec4d();
 
 ////////////////////////////////////////////////////////////////////////
 // Local path normalization code.
@@ -569,7 +573,13 @@ SGPropertyNode::make_string () const
         sstr << std::setprecision(10) << get_double();
         break;
     case EXTENDED:
+    {
+        Type realType = _value.val->getType();
+        // Perhaps this should be done for all types?
+        if (realType == VEC3D || realType == VEC4D)
+            sstr.precision(10);
         static_cast<SGRawExtended*>(_value.val)->printOn(sstr);
+    }
         break;
     default:
         return "";
@@ -1544,6 +1554,12 @@ SGPropertyNode::setUnspecifiedValue (const char * value)
   case UNSPECIFIED:
     result = set_string(value);
     break;
+  case VEC3D:
+      result = static_cast<SGRawValue<SGVec3d>*>(_value.val)->setValue(parseString<SGVec3d>(value));
+      break;
+  case VEC4D:
+      result = static_cast<SGRawValue<SGVec4d>*>(_value.val)->setValue(parseString<SGVec4d>(value));
+      break;
   case NONE:
   default:
     break;
@@ -2296,5 +2312,52 @@ SGPropertyChangeListener::unregister_property (SGPropertyNode * node)
     _properties.erase(it);
 }
 
+namespace simgear
+{
+template<>
+std::ostream& SGRawBase<SGVec3d>::printOn(std::ostream& stream) const
+{
+    const SGVec3d vec
+        = static_cast<const SGRawValue<SGVec3d>*>(this)->getValue();
+    for (int i = 0; i < 3; ++i) {
+        stream << vec[i];
+        if (i < 2)
+            stream << ' ';
+    }
+    return stream;
+}
+
+template<>
+std::istream& readFrom<SGVec3d>(std::istream& stream, SGVec3d& result)
+{
+    for (int i = 0; i < 3; ++i) {
+        stream >> result[i];
+    }
+    return stream;
+}
+
+template<>
+std::ostream& SGRawBase<SGVec4d>::printOn(std::ostream& stream) const
+{
+    const SGVec4d vec
+        = static_cast<const SGRawValue<SGVec4d>*>(this)->getValue();    
+    for (int i = 0; i < 4; ++i) {
+        stream << vec[i];
+        if (i < 3)
+            stream << ' ';
+    }
+    return stream;
+}
+
+template<>
+std::istream& readFrom<SGVec4d>(std::istream& stream, SGVec4d& result)
+{
+    for (int i = 0; i < 4; ++i) {
+        stream >> result[i];
+    }
+    return stream;
+}
+
+}
 
 // end of props.cxx
diff --git a/simgear/props/props.hxx b/simgear/props/props.hxx
index 960d2aea..8e3647ee 100644
--- a/simgear/props/props.hxx
+++ b/simgear/props/props.hxx
@@ -30,7 +30,7 @@
 #endif
 
 
-
+#include <simgear/math/SGMathFwd.hxx>
 #include <simgear/structure/SGReferenced.hxx>
 #include <simgear/structure/SGSharedPtr.hxx>
 
@@ -63,6 +63,13 @@ inline T parseString(const std::string& str)
     return result;
 }
 
+// Extended properties
+template<>
+std::istream& readFrom<SGVec3d>(std::istream& stream, SGVec3d& result);
+template<>
+std::istream& readFrom<SGVec4d>(std::istream& stream, SGVec4d& result);
+
+    
 /**
  * Property value types.
  */
@@ -128,11 +135,14 @@ enum Type {
     DOUBLE,
     STRING,
     UNSPECIFIED,
-    EXTENDED  /**< The node's value is not stored in the property;
+    EXTENDED, /**< The node's value is not stored in the property;
                * the actual value and type is retrieved from an
                * SGRawValue node. This type is never returned by @see
                * SGPropertyNode::getType.
                */
+    // Extended properties
+    VEC3D,
+    VEC4D
 };
 
 template<typename T> struct PropertyTraits;
@@ -153,6 +163,19 @@ DEFINTERNALPROP(double, DOUBLE);
 DEFINTERNALPROP(const char *, STRING);
 #undef DEFINTERNALPROP
 
+template<>
+struct PropertyTraits<SGVec3d>
+{
+    static const Type type_tag = VEC3D;
+    enum  { Internal = 0 };
+};
+
+template<>
+struct PropertyTraits<SGVec4d>
+{
+    static const Type type_tag = VEC4D;
+    enum  { Internal = 0 };
+};
 }
 }
 
@@ -351,6 +374,8 @@ template<> const long SGRawValue<long>::DefaultValue;
 template<> const float SGRawValue<float>::DefaultValue;
 template<> const double SGRawValue<double>::DefaultValue;
 template<> const char * const SGRawValue<const char *>::DefaultValue;
+template<> const SGVec3d SGRawValue<SGVec3d>::DefaultValue;
+template<> const SGVec4d SGRawValue<SGVec4d>::DefaultValue;
 
 /**
  * A raw value bound to a pointer.
@@ -658,6 +683,12 @@ std::istream& SGRawBase<T, 0>::readFrom(std::istream& stream)
     static_cast<SGRawValue<T>*>(this)->setValue(value);
     return stream;
 }
+
+template<>
+std::ostream& SGRawBase<SGVec3d>::printOn(std::ostream& stream) const;
+template<>
+std::ostream& SGRawBase<SGVec4d>::printOn(std::ostream& stream) const;
+
 
 /**
  * The smart pointer that manage reference counting
diff --git a/simgear/props/props_io.cxx b/simgear/props/props_io.cxx
index 881abe8c..f6aa8d78 100644
--- a/simgear/props/props_io.cxx
+++ b/simgear/props/props_io.cxx
@@ -18,6 +18,7 @@
 
 #include <simgear/sg_inlines.h>
 #include <simgear/debug/logstream.hxx>
+#include <simgear/math/SGMath.hxx>
 #include <simgear/misc/sg_path.hxx>
 #include <simgear/xml/easyxml.hxx>
 
@@ -53,8 +54,11 @@ class PropsVisitor : public XMLVisitor
 {
 public:
 
-  PropsVisitor (SGPropertyNode * root, const string &base, int default_mode = 0)
-    : _default_mode(default_mode), _root(root), _level(0), _base(base), _hasException(false) {}
+  PropsVisitor (SGPropertyNode * root, const string &base, int default_mode = 0,
+                bool extended = false)
+    : _default_mode(default_mode), _root(root), _level(0), _base(base),
+      _hasException(false), _extended(extended)
+  {}
 
   virtual ~PropsVisitor () {}
 
@@ -111,6 +115,7 @@ private:
   string _base;
   sg_io_exception _exception;
   bool _hasException;
+  bool _extended;
 };
 
 void
@@ -168,7 +173,7 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
       SGPath path(SGPath(_base).dir());
       path.append(attval);
       try {
-	readProperties(path.str(), _root);
+	readProperties(path.str(), _root, 0, _extended);
       } catch (sg_io_exception &e) {
 	setException(e);
       }
@@ -236,7 +241,7 @@ PropsVisitor::startElement (const char * name, const XMLAttributes &atts)
       SGPath path(SGPath(_base).dir());
       path.append(attval);
       try {
-	readProperties(path.str(), node);
+	readProperties(path.str(), node, 0, _extended);
       } catch (sg_io_exception &e) {
 	setException(e);
       }
@@ -276,6 +281,12 @@ PropsVisitor::endElement (const char * name)
       ret = st.node->setDoubleValue(strtod(_data.c_str(), 0));
     } else if (st.type == "string") {
       ret = st.node->setStringValue(_data.c_str());
+    } else if (st.type == "vec3d" && _extended) {
+      ret = st.node
+        ->setValue(simgear::parseString<SGVec3d>(_data));
+    } else if (st.type == "vec4d" && _extended) {
+      ret = st.node
+        ->setValue(simgear::parseString<SGVec4d>(_data));
     } else if (st.type == "unspecified") {
       ret = st.node->setUnspecifiedValue(_data.c_str());
     } else if (_level == 1) {
@@ -345,9 +356,9 @@ PropsVisitor::warning (const char * message, int line, int column)
  */
 void
 readProperties (istream &input, SGPropertyNode * start_node,
-		const string &base, int default_mode)
+		const string &base, int default_mode, bool extended)
 {
-  PropsVisitor visitor(start_node, base, default_mode);
+  PropsVisitor visitor(start_node, base, default_mode, extended);
   readXML(input, visitor, base);
   if (visitor.hasException())
     throw visitor.getException();
@@ -363,9 +374,9 @@ readProperties (istream &input, SGPropertyNode * start_node,
  */
 void
 readProperties (const string &file, SGPropertyNode * start_node,
-                int default_mode)
+                int default_mode, bool extended)
 {
-  PropsVisitor visitor(start_node, file, default_mode);
+  PropsVisitor visitor(start_node, file, default_mode, extended);
   readXML(file, visitor);
   if (visitor.hasException())
     throw visitor.getException();
@@ -381,9 +392,10 @@ readProperties (const string &file, SGPropertyNode * start_node,
  * @return true if the read succeeded, false otherwise.
  */
 void readProperties (const char *buf, const int size,
-                     SGPropertyNode * start_node, int default_mode)
+                     SGPropertyNode * start_node, int default_mode,
+                     bool extended)
 {
-  PropsVisitor visitor(start_node, "", default_mode);
+  PropsVisitor visitor(start_node, "", default_mode, extended);
   readXML(buf, size, visitor);
   if (visitor.hasException())
     throw visitor.getException();
@@ -418,6 +430,10 @@ getTypeName (simgear::props::Type type)
     return "double";
   case STRING:
     return "string";
+  case VEC3D:
+    return "vec3d";
+  case VEC4D:
+    return "vec4d";
   case ALIAS:
   case NONE:
     return "unspecified";
@@ -636,6 +652,14 @@ copyProperties (const SGPropertyNode *in, SGPropertyNode *out)
       if (!out->setUnspecifiedValue(in->getStringValue()))
 	retval = false;
       break;
+    case VEC3D:
+      if (!out->setValue(in->getValue<SGVec3d>()))
+        retval = false;
+      break;
+    case VEC4D:
+      if (!out->setValue(in->getValue<SGVec4d>()))
+        retval = false;
+      break;
     default:
       if (in->isAlias())
 	break;
diff --git a/simgear/props/props_io.hxx b/simgear/props/props_io.hxx
index c8f46997..b619c04b 100644
--- a/simgear/props/props_io.hxx
+++ b/simgear/props/props_io.hxx
@@ -26,21 +26,23 @@
  * Read properties from an XML input stream.
  */
 void readProperties (std::istream &input, SGPropertyNode * start_node,
-		     const std::string &base = "", int default_mode = 0);
+		     const std::string &base = "", int default_mode = 0,
+                     bool extended = false);
 
 
 /**
  * Read properties from an XML file.
  */
 void readProperties (const std::string &file, SGPropertyNode * start_node,
-                     int default_mode = 0);
+                     int default_mode = 0, bool extended = false);
 
 
 /**
  * Read properties from an in-memory buffer.
  */
 void readProperties (const char *buf, const int size,
-                     SGPropertyNode * start_node, int default_mode = 0);
+                     SGPropertyNode * start_node, int default_mode = 0,
+                     bool extended = false);
 
 
 /**