#ifndef __FG_PROPS_HXX
#define __FG_PROPS_HXX 1
-#include <simgear/debug/logstream.hxx>
-#include <simgear/misc/props.hxx>
-#include <simgear/misc/props_io.hxx>
+#include <iosfwd>
-#include "globals.hxx"
+#include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/math/SGMath.hxx>
+
+#include <Main/globals.hxx>
-\f
////////////////////////////////////////////////////////////////////////
// Property management.
////////////////////////////////////////////////////////////////////////
+class FGProperties : public SGSubsystem
+{
+public:
+ FGProperties ();
+ virtual ~FGProperties ();
-/**
- * Initialize the default FlightGear properties.
- *
- * These are mostly properties that haven't been claimed by a
- * specific module yet. This function should be invoked once,
- * while the program is starting (and after the global property
- * tree has been created).
- */
-extern void fgInitProps (); // fixme: how are they untied?
-
-
-/**
- * Update the default FlightGear properties.
- *
- * This function should be invoked once in each loop to update all
- * of the default properties.
- */
-extern void fgUpdateProps ();
+ void init ();
+ void bind ();
+ void unbind ();
+ void update (double dt);
+};
/**
* just the ones flagged as archivable.
* @return true if the flight was saved successfully.
*/
-extern bool fgSaveFlight (ostream &output, bool write_all = false);
+extern bool fgSaveFlight (std::ostream &output, bool write_all = false);
/**
* @param input The input stream to read the XML from.
* @return true if the flight was restored successfully.
*/
-extern bool fgLoadFlight (istream &input);
+extern bool fgLoadFlight (std::istream &input);
+
+
+/**
+ * Load properties from a file.
+ *
+ * @param file The relative or absolute filename.
+ * @param props The property node to load the properties into.
+ * @param in_fg_root If true, look for the file relative to
+ * $FG_ROOT; otherwise, look for the file relative to the
+ * current working directory.
+ * @return true if the properties loaded successfully, false
+ * otherwise.
+ */
+extern bool fgLoadProps (const char * path, SGPropertyNode * props,
+ bool in_fg_root = true, int default_mode = 0);
\f
extern bool fgHasNode (const char * path);
+/**
+ * Add a listener to a node.
+ *
+ * @param listener The listener to add to the node.
+ * @param path The path of the node, relative to root.
+ * @param index The index for the last member of the path (overrides
+ * any given in the string).
+ */
+extern void fgAddChangeListener (SGPropertyChangeListener * listener,
+ const char * path);
+
+
+/**
+ * Add a listener to a node.
+ *
+ * @param listener The listener to add to the node.
+ * @param path The path of the node, relative to root.
+ * @param index The index for the last member of the path (overrides
+ * any given in the string).
+ */
+extern void fgAddChangeListener (SGPropertyChangeListener * listener,
+ const char * path, int index);
+
+
/**
* Get a bool value for a property.
*
}
-\f
-////////////////////////////////////////////////////////////////////////
-// Conditions.
-////////////////////////////////////////////////////////////////////////
-
-
-/**
- * An encoded condition.
- *
- * This class encodes a single condition of some sort, possibly
- * connected with properties.
- *
- * This class should migrate to somewhere more general.
- */
-class FGCondition
-{
+class FGMakeUpperCase : public SGPropertyChangeListener {
public:
- FGCondition ();
- virtual ~FGCondition ();
- virtual bool test () const = 0;
+ void valueChanged(SGPropertyNode *node) {
+ if (node->getType() != simgear::props::STRING)
+ return;
+
+ char *s = const_cast<char *>(node->getStringValue());
+ for (; *s; s++)
+ *s = toupper(*s);
+ }
};
-/**
- * Condition for a single property.
- *
- * This condition is true only if the property returns a boolean
- * true value.
- */
-class FGPropertyCondition : public FGCondition
-{
-public:
- FGPropertyCondition (const char * propname);
- virtual ~FGPropertyCondition ();
- virtual bool test () const { return _node->getBoolValue(); }
-private:
- const SGPropertyNode * _node;
-};
-
-
-/**
- * Condition for a 'not' operator.
- *
- * This condition is true only if the child condition is false.
- */
-class FGNotCondition : public FGCondition
-{
-public:
- // transfer pointer ownership
- FGNotCondition (FGCondition * condition);
- virtual ~FGNotCondition ();
- virtual bool test () const;
-private:
- FGCondition * _condition;
-};
-
-
-/**
- * Condition for an 'and' group.
- *
- * This condition is true only if all of the conditions
- * in the group are true.
- */
-class FGAndCondition : public FGCondition
-{
-public:
- FGAndCondition ();
- virtual ~FGAndCondition ();
- virtual bool test () const;
- // transfer pointer ownership
- virtual void addCondition (FGCondition * condition);
-private:
- vector<FGCondition *> _conditions;
-};
-
-
-/**
- * Condition for an 'or' group.
- *
- * This condition is true if at least one of the conditions in the
- * group is true.
- */
-class FGOrCondition : public FGCondition
-{
-public:
- FGOrCondition ();
- virtual ~FGOrCondition ();
- virtual bool test () const;
- // transfer pointer ownership
- virtual void addCondition (FGCondition * condition);
-private:
- vector<FGCondition *> _conditions;
-};
-
-
-/**
- * Abstract base class for property comparison conditions.
- */
-class FGComparisonCondition : public FGCondition
-{
-public:
- enum Type {
- LESS_THAN,
- GREATER_THAN,
- EQUALS
- };
- FGComparisonCondition (Type type, bool reverse = false);
- virtual ~FGComparisonCondition ();
- virtual bool test () const;
- virtual void setLeftProperty (const char * propname);
- virtual void setRightProperty (const char * propname);
- // will make a local copy
- virtual void setRightValue (const SGPropertyNode * value);
-private:
- Type _type;
- bool _reverse;
- const SGPropertyNode * _left_property;
- const SGPropertyNode * _right_property;
- const SGPropertyNode * _right_value;
-};
-
-
-/**
- * Base class for a conditional components.
- *
- * This class manages the conditions and tests; the component should
- * invoke the test() method whenever it needs to decide whether to
- * active itself, draw itself, and so on.
- */
-class FGConditional
-{
-public:
- FGConditional ();
- virtual ~FGConditional ();
- // transfer pointer ownership
- virtual void setCondition (FGCondition * condition);
- virtual const FGCondition * getCondition () const { return _condition; }
- virtual bool test () const;
-private:
- FGCondition * _condition;
-};
-
-
-/**
- * Global function to make a condition out of properties.
- *
- * The top-level is always an implicit 'and' group, whatever the
- * node's name (it should usually be "condition").
- *
- * @param node The top-level condition node (usually named "condition").
- * @return A pointer to a newly-allocated condition; it is the
- * responsibility of the caller to delete the condition when
- * it is no longer needed.
- */
-FGCondition * fgReadCondition (const SGPropertyNode * node);
-
-
#endif // __FG_PROPS_HXX
projects / flightgear.git / blobdiff