first commit

2022-10-20 20:29:11 +08:00
commit 4d531f8044
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--- a/src/FDM/JSBSim/input_output/FGPropertyReader.cpp
+++ b/src/FDM/JSBSim/input_output/FGPropertyReader.cpp
@@ -0,0 +1,136 @@
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+ Module:       FGPropertyReader.cpp
+ Author:       Bertrand Coconnier
+ Date started: 12/30/13
+ Purpose:      Read and manage properties from XML data
+
+  ------------- Copyright (C) 2013 Bertrand Coconnier -------------
+
+ This program is free software; you can redistribute it and/or modify it under
+ the terms of the GNU Lesser General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any later
+ version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+ details.
+
+ You should have received a copy of the GNU Lesser General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ Place - Suite 330, Boston, MA  02111-1307, USA.
+
+ Further information about the GNU Lesser General Public License can also be found on
+ the world wide web at http://www.gnu.org.
+
+FUNCTIONAL DESCRIPTION
+--------------------------------------------------------------------------------
+This class reads and manages properties defined in XML data
+
+HISTORY
+--------------------------------------------------------------------------------
+12/30/13   BC    Created
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+INCLUDES
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#include "FGPropertyReader.h"
+#include "FGPropertyManager.h"
+#include "FGXMLElement.h"
+#include "FGJSBBase.h"
+
+using namespace std;
+
+namespace JSBSim {
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+CLASS IMPLEMENTATION
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bool FGPropertyReader::ResetToIC(void)
+{
+  for (auto v: interface_prop_initial_value) {
+    SGPropertyNode* node = v.first;
+    if (!node->getAttribute(SGPropertyNode::PRESERVE))
+      node->setDoubleValue(v.second);
+  }
+
+  return true;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropertyReader::Load(Element* el, FGPropertyManager* PM, bool override)
+{
+  Element *property_element = el->FindElement("property");
+  if (property_element && FGJSBBase::debug_lvl > 0) {
+    cout << endl << "    ";
+    if (override)
+      cout << "Overriding";
+    else
+      cout << "Declared";
+    cout << " properties" << endl << endl;
+  }
+
+  while (property_element) {
+    SGPropertyNode* node = nullptr;
+    double value=0.0;
+    if ( ! property_element->GetAttributeValue("value").empty())
+      value = property_element->GetAttributeValueAsNumber("value");
+
+    string interface_property_string = property_element->GetDataLine();
+    if (PM->HasNode(interface_property_string)) {
+      if (override) {
+        node = PM->GetNode(interface_property_string);
+
+        if (FGJSBBase::debug_lvl > 0) {
+          if (interface_prop_initial_value.find(node) == interface_prop_initial_value.end()) {
+            cout << property_element->ReadFrom()
+                 << "  The following property will be overridden but it has not been" << endl
+                 << "  defined in the current model '" << el->GetName() << "'" << endl;
+          }
+
+          cout << "      " << "Overriding value for property " << interface_property_string << endl
+               << "       (old value: " << node->getDoubleValue() << "  new value: " << value << ")"
+               << endl << endl;
+        }
+
+        node->setDoubleValue(value);
+      }
+      else {
+        cerr << property_element->ReadFrom()
+             << "      Property " << interface_property_string 
+             << " is already defined." << endl;
+	property_element = el->FindNextElement("property");
+	continue;
+      }
+    } else {
+      node = PM->GetNode(interface_property_string, true);
+      if (node) {
+        node->setDoubleValue(value);
+
+        if (FGJSBBase::debug_lvl > 0)
+          cout << "      " << interface_property_string << " (initial value: " 
+               << value << ")" << endl << endl;
+      }
+      else {
+        cerr << "Could not create property " << interface_property_string
+             << endl;
+        property_element = el->FindNextElement("property");
+        continue;
+      }
+    }
+    interface_prop_initial_value[node] = value;
+    if (property_element->GetAttributeValue("persistent") == string("true"))
+      node->setAttribute(SGPropertyNode::PRESERVE, true);
+
+    property_element = el->FindNextElement("property");
+  }
+  
+  // End of interface property loading logic
+}
+}