-
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
{
if (!naIsGhost(ref) || (naGhost_type(ref) != &PropNodeGhostType))
return NULL;
-
+
SGPropertyNode_ptr* pp = (SGPropertyNode_ptr*) naGhost_ptr(ref);
return pp->ptr();
}
// array. This allows the Nasal handlers to do things like:
// Node.getChild = func { _getChild(me.ghost, arg) }
//
-#define NODENOARG() \
- if(argc < 2 || !naIsGhost(args[0]) || \
- naGhost_type(args[0]) != &PropNodeGhostType) \
- naRuntimeError(c, "bad argument to props function"); \
- SGPropertyNode_ptr* node = (SGPropertyNode_ptr*)naGhost_ptr(args[0]);
-
-#define NODEARG() \
- NODENOARG(); \
+#define NODENOARG() \
+ if(argc < 2 || !naIsGhost(args[0]) || \
+ naGhost_type(args[0]) != &PropNodeGhostType) \
+ naRuntimeError(c, "bad argument to props function"); \
+ SGPropertyNode_ptr node = *(SGPropertyNode_ptr*)naGhost_ptr(args[0]);
+
+#define NODEARG() \
+ NODENOARG(); \
naRef argv = args[1]
+//
+// Pops the first argument as a relative path if the first condition
+// is true (e.g. argc > 1 for getAttribute) and if it is a string.
+// If the second confition is true, then another is popped to specify
+// if the node should be created (i.e. like the second argument to
+// getNode())
+//
+// Note that this makes the function return nil if the node doesn't
+// exist, so all functions with a relative_path parameter will
+// return nil if the specified node does not exist.
+//
+#define MOVETARGET(cond1, create) \
+ if(cond1) { \
+ naRef name = naVec_get(argv, 0); \
+ if(naIsString(name)) { \
+ try { \
+ node = node->getNode(naStr_data(name), create); \
+ } catch(const string& err) { \
+ naRuntimeError(c, (char *)err.c_str()); \
+ return naNil(); \
+ } \
+ if(!node) return naNil(); \
+ naVec_removefirst(argv); /* pop only if we were successful */ \
+ } \
+ }
+
+
+// Get the type of a property (returns a string).
+// Forms:
+// props.Node.getType(string relative_path);
+// props.Node.getType();
static naRef f_getType(naContext c, naRef me, int argc, naRef* args)
{
using namespace simgear;
- NODENOARG();
+ NODEARG();
+ MOVETARGET(naVec_size(argv) > 0, false);
const char* t = "unknown";
- switch((*node)->getType()) {
+ switch(node->getType()) {
case props::NONE: t = "NONE"; break;
case props::ALIAS: t = "ALIAS"; break;
case props::BOOL: t = "BOOL"; break;
return NASTR(t);
}
+
+// Get an attribute of a property by name (returns true/false).
+// Forms:
+// props.Node.getType(string relative_path,
+// string attribute_name);
+// props.Node.getType(string attribute_name);
static naRef f_getAttribute(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
- if(naVec_size(argv) == 0) return naNum(unsigned((*node)->getAttributes()));
+ if(naVec_size(argv) == 0) return naNum(unsigned(node->getAttributes()));
+ MOVETARGET(naVec_size(argv) > 1, false);
naRef val = naVec_get(argv, 0);
const char *a = naStr_data(val);
SGPropertyNode::Attribute attr;
if(!a) a = "";
if(!strcmp(a, "last")) return naNum(SGPropertyNode::LAST_USED_ATTRIBUTE);
- else if(!strcmp(a, "children")) return naNum((*node)->nChildren());
- else if(!strcmp(a, "listeners")) return naNum((*node)->nListeners());
- else if(!strcmp(a, "references")) return naNum(node->getNumRefs());
- else if(!strcmp(a, "tied")) return naNum((*node)->isTied());
- else if(!strcmp(a, "alias")) return naNum((*node)->isAlias());
+ else if(!strcmp(a, "children")) return naNum(node->nChildren());
+ else if(!strcmp(a, "listeners")) return naNum(node->nListeners());
+ // Number of references without instance used in this function
+ else if(!strcmp(a, "references")) return naNum(node.getNumRefs() - 1);
+ else if(!strcmp(a, "tied")) return naNum(node->isTied());
+ else if(!strcmp(a, "alias")) return naNum(node->isAlias());
else if(!strcmp(a, "readable")) attr = SGPropertyNode::READ;
else if(!strcmp(a, "writable")) attr = SGPropertyNode::WRITE;
else if(!strcmp(a, "archive")) attr = SGPropertyNode::ARCHIVE;
naRuntimeError(c, "props.getAttribute() with invalid attribute");
return naNil();
}
- return naNum((*node)->getAttribute(attr));
+ return naNum(node->getAttribute(attr));
}
+
+// Set an attribute by name and boolean value or raw (bitmasked) number.
+// Forms:
+// props.Node.setAttribute(string relative_path,
+// string attribute_name,
+// bool value);
+// props.Node.setAttribute(string attribute_name,
+// bool value);
+// props.Node.setArtribute(int attributes);
static naRef f_setAttribute(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
+ MOVETARGET(naVec_size(argv) > 2, false);
naRef val = naVec_get(argv, 0);
if(naVec_size(argv) == 1 && naIsNum(val)) {
- naRef ret = naNum((*node)->getAttributes());
- (*node)->setAttributes((int)val.num);
+ naRef ret = naNum(node->getAttributes());
+ node->setAttributes((int)val.num);
return ret;
}
SGPropertyNode::Attribute attr;
naRuntimeError(c, "props.setAttribute() with invalid attribute");
return naNil();
}
- naRef ret = naNum((*node)->getAttribute(attr));
- (*node)->setAttribute(attr, naTrue(naVec_get(argv, 1)) ? true : false);
+ naRef ret = naNum(node->getAttribute(attr));
+ node->setAttribute(attr, naTrue(naVec_get(argv, 1)) ? true : false);
return ret;
}
+
+// Get the simple name of this node.
+// Forms:
+// props.Node.getName();
static naRef f_getName(naContext c, naRef me, int argc, naRef* args)
{
NODENOARG();
- return NASTR((*node)->getName());
+ return NASTR(node->getName());
}
+
+// Get the index of this node.
+// Forms:
+// props.Node.getIndex();
static naRef f_getIndex(naContext c, naRef me, int argc, naRef* args)
{
NODENOARG();
- return naNum((*node)->getIndex());
+ return naNum(node->getIndex());
+}
+
+// Check if other_node refers to the same as this node.
+// Forms:
+// props.Node.equals(other_node);
+static naRef f_equals(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+
+ naRef rhs = naVec_get(argv, 0);
+ if( !naIsGhost(rhs) || naGhost_type(rhs) != &PropNodeGhostType )
+ return naNum(false);
+
+ SGPropertyNode_ptr node_rhs = *(SGPropertyNode_ptr*)naGhost_ptr(rhs);
+ return naNum(node == node_rhs);
}
template<typename T>
return vector;
}
+
+// Get the value of a node, with or without a relative path.
+// Forms:
+// props.Node.getValue(string relative_path);
+// props.Node.getValue();
static naRef f_getValue(naContext c, naRef me, int argc, naRef* args)
{
using namespace simgear;
- NODENOARG();
- switch((*node)->getType()) {
+ NODEARG();
+ MOVETARGET(naVec_size(argv) > 0, false);
+ switch(node->getType()) {
case props::BOOL: case props::INT:
case props::LONG: case props::FLOAT:
case props::DOUBLE:
{
- double dv = (*node)->getDoubleValue();
+ double dv = node->getDoubleValue();
if (SGMisc<double>::isNaN(dv)) {
- SG_LOG(SG_NASAL, SG_ALERT, "Nasal getValue: property " << (*node)->getPath() << " is NaN");
+ SG_LOG(SG_NASAL, SG_ALERT, "Nasal getValue: property " << node->getPath() << " is NaN");
return naNil();
}
case props::STRING:
case props::UNSPECIFIED:
- return NASTR((*node)->getStringValue());
+ return NASTR(node->getStringValue());
case props::VEC3D:
- return makeVectorFromVec(c, (*node)->getValue<SGVec3d>());
+ return makeVectorFromVec(c, node->getValue<SGVec3d>());
case props::VEC4D:
- return makeVectorFromVec(c, (*node)->getValue<SGVec4d>());
+ return makeVectorFromVec(c, node->getValue<SGVec4d>());
default:
return naNil();
}
return vec;
}
+
+// Set the value of a node; returns true if it succeeded or
+// false if it failed. <val> can be a string, number, or a
+// vector or numbers (for SGVec3D/4D types).
+// Forms:
+// props.Node.setValue(string relative_path,
+// val);
+// props.Node.setValue(val);
static naRef f_setValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
+ MOVETARGET(naVec_size(argv) > 1, true);
naRef val = naVec_get(argv, 0);
bool result = false;
if(naIsString(val)) {
- result = (*node)->setStringValue(naStr_data(val));
+ result = node->setStringValue(naStr_data(val));
} else if(naIsVector(val)) {
if(naVec_size(val) == 3)
- result = (*node)->setValue(makeVecFromVector<SGVec3d>(val));
+ result = node->setValue(makeVecFromVector<SGVec3d>(val));
else if(naVec_size(val) == 4)
- result = (*node)->setValue(makeVecFromVector<SGVec4d>(val));
+ result = node->setValue(makeVecFromVector<SGVec4d>(val));
else
naRuntimeError(c, "props.setValue() vector value has wrong size");
} else {
- naRef n = naNumValue(val);
- if(naIsNil(n))
+ if(!naIsNum(val))
naRuntimeError(c, "props.setValue() with non-number");
double d = naNumValue(val).num;
naRuntimeError(c, "props.setValue() passed a NaN");
}
- result = (*node)->setDoubleValue(d);
+ result = node->setDoubleValue(d);
}
return naNum(result);
}
static naRef f_setIntValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
+ MOVETARGET(naVec_size(argv) > 1, true);
// Original code:
// int iv = (int)naNumValue(naVec_get(argv, 0)).num;
double tmp2 = tmp1.num;
int iv = (int)tmp2;
- return naNum((*node)->setIntValue(iv));
+ return naNum(node->setIntValue(iv));
}
static naRef f_setBoolValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
+ MOVETARGET(naVec_size(argv) > 1, true);
naRef val = naVec_get(argv, 0);
- return naNum((*node)->setBoolValue(naTrue(val) ? true : false));
+ return naNum(node->setBoolValue(naTrue(val) ? true : false));
}
static naRef f_setDoubleValue(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
+ MOVETARGET(naVec_size(argv) > 1, true);
naRef r = naNumValue(naVec_get(argv, 0));
if (naIsNil(r))
naRuntimeError(c, "props.setDoubleValue() with non-number");
naRuntimeError(c, "props.setDoubleValue() passed a NaN");
}
- return naNum((*node)->setDoubleValue(r.num));
+ return naNum(node->setDoubleValue(r.num));
}
+
+// Get the parent of this node as a ghost.
+// Forms:
+// props.Node.getParent();
static naRef f_getParent(naContext c, naRef me, int argc, naRef* args)
{
NODENOARG();
- SGPropertyNode* n = (*node)->getParent();
+ SGPropertyNode* n = node->getParent();
if(!n) return naNil();
return propNodeGhostCreate(c, n);
}
+
+// Get a child by name and optional index=0, creating if specified (by default it
+// does not create it). If the node does not exist and create is false, then it
+// returns nil, else it returns a (possibly new) property ghost.
+// Forms:
+// props.Node.getChild(string relative_path,
+// int index=0,
+// bool create=false);
static naRef f_getChild(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
bool create = naTrue(naVec_get(argv, 2)) != 0;
SGPropertyNode* n;
try {
- if(naIsNil(idx) || !naIsNum(idx)) {
- n = (*node)->getChild(naStr_data(child), create);
+ if(naIsNil(idx)) {
+ n = node->getChild(naStr_data(child), create);
} else {
- n = (*node)->getChild(naStr_data(child), (int)idx.num, create);
+ n = node->getChild(naStr_data(child), (int)idx.num, create);
}
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
return propNodeGhostCreate(c, n);
}
+
+// Get all children with a specified name as a vector of ghosts.
+// Forms:
+// props.Node.getChildren(string relative_path);
+// props.Node.getChildren(); #get all children
static naRef f_getChildren(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRef result = naNewVector(c);
if(naIsNil(argv) || naVec_size(argv) == 0) {
// Get all children
- for(int i=0; i<(*node)->nChildren(); i++)
- naVec_append(result, propNodeGhostCreate(c, (*node)->getChild(i)));
+ for(int i=0; i<node->nChildren(); i++)
+ naVec_append(result, propNodeGhostCreate(c, node->getChild(i)));
} else {
// Get all children of a specified name
naRef name = naVec_get(argv, 0);
if(!naIsString(name)) return naNil();
try {
vector<SGPropertyNode_ptr> children
- = (*node)->getChildren(naStr_data(name));
+ = node->getChildren(naStr_data(name));
for(unsigned int i=0; i<children.size(); i++)
naVec_append(result, propNodeGhostCreate(c, children[i]));
} catch (const string& err) {
return result;
}
+
+// Append a named child at the first unused index...
+// Forms:
+// props.Node.addChild(string name,
+// int min_index=0,
+// bool append=true);
static naRef f_addChild(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
try
{
int min_index = 0;
- if( !naIsNil(ref_min_index) && naIsNum(ref_min_index) )
+ if(!naIsNil(ref_min_index))
min_index = ref_min_index.num;
bool append = true;
- if( !naIsNil(ref_append) )
+ if(!naIsNil(ref_append))
append = naTrue(ref_append) != 0;
- n = (*node)->addChild(naStr_data(child), min_index, append);
+ n = node->addChild(naStr_data(child), min_index, append);
}
catch (const string& err)
{
count = ref_count.num;
int min_index = 0;
- if( !naIsNil(ref_min_index) && naIsNum(ref_min_index) )
+ if(!naIsNil(ref_min_index))
min_index = ref_min_index.num;
bool append = true;
- if( !naIsNil(ref_append) )
+ if(!naIsNil(ref_append))
append = naTrue(ref_append) != 0;
const simgear::PropertyList& nodes =
- (*node)->addChildren(naStr_data(child), count, min_index, append);
+ node->addChildren(naStr_data(child), count, min_index, append);
naRef result = naNewVector(c);
for( size_t i = 0; i < nodes.size(); ++i )
return naNil();
}
+
+// Remove a child by name and index. Returns it as a ghost.
+// Forms:
+// props.Node.removeChild(string relative_path,
+// int index);
static naRef f_removeChild(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
if(!naIsString(child) || !naIsNum(index)) return naNil();
SGPropertyNode_ptr n = 0;
try {
- n = (*node)->removeChild(naStr_data(child), (int)index.num, false);
+ n = node->removeChild(naStr_data(child), (int)index.num, false);
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
}
return propNodeGhostCreate(c, n);
}
+
+// Remove all children with specified name. Returns a vector of all the nodes
+// removed as ghosts.
+// Forms:
+// props.Node.removeChildren(string relative_path);
+// props.Node.removeChildren(); #remove all children
static naRef f_removeChildren(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRef result = naNewVector(c);
if(naIsNil(argv) || naVec_size(argv) == 0) {
// Remove all children
- for(int i = (*node)->nChildren() - 1; i >=0; i--)
- naVec_append(result, propNodeGhostCreate(c, (*node)->removeChild(i, false)));
+ for(int i = node->nChildren() - 1; i >=0; i--)
+ naVec_append(result, propNodeGhostCreate(c, node->removeChild(i, false)));
} else {
// Remove all children of a specified name
naRef name = naVec_get(argv, 0);
if(!naIsString(name)) return naNil();
try {
vector<SGPropertyNode_ptr> children
- = (*node)->removeChildren(naStr_data(name), false);
+ = node->removeChildren(naStr_data(name), false);
for(unsigned int i=0; i<children.size(); i++)
naVec_append(result, propNodeGhostCreate(c, children[i]));
} catch (const string& err) {
return result;
}
+
+// Alias this property to another one; returns 1 on success or 0 on failure
+// (only applicable to tied properties).
+// Forms:
+// props.Node.alias(string global_path);
+// props.Node.alias(prop_ghost node);
+// props.Node.alias(props.Node node); #added by props.nas
static naRef f_alias(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
naRuntimeError(c, (char *)err.c_str());
return naNil();
}
- return naNum((*node)->alias(al));
+ return naNum(node->alias(al));
}
+
+// Un-alias this property. Returns 1 on success or 0 on failure (only
+// applicable to tied properties).
+// Forms:
+// props.Node.unalias();
static naRef f_unalias(naContext c, naRef me, int argc, naRef* args)
{
NODENOARG();
- return naNum((*node)->unalias());
+ return naNum(node->unalias());
}
+
+// Get the alias of this node as a ghost.
+// Forms:
+// props.Node.getAliasTarget();
static naRef f_getAliasTarget(naContext c, naRef me, int argc, naRef* args)
{
NODENOARG();
- return propNodeGhostCreate(c, (*node)->getAliasTarget());
+ return propNodeGhostCreate(c, node->getAliasTarget());
}
+
+// Get a relative node. Returns nil if it does not exist and create is false,
+// or a ghost object otherwise (wrapped into a props.Node object by props.nas).
+// Forms:
+// props.Node.getNode(string relative_path,
+// bool create=false);
static naRef f_getNode(naContext c, naRef me, int argc, naRef* args)
{
NODEARG();
if(!naIsString(path)) return naNil();
SGPropertyNode* n;
try {
- n = (*node)->getNode(naStr_data(path), create);
+ n = node->getNode(naStr_data(path), create);
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
return naNil();
return propNodeGhostCreate(c, n);
}
+
+// Create a new property node.
+// Forms:
+// props.Node.new();
static naRef f_new(naContext c, naRef me, int argc, naRef* args)
{
return propNodeGhostCreate(c, new SGPropertyNode());
}
+
+// Get the global root node (cached by props.nas so that it does
+// not require a function call).
+// Forms:
+// props._globals()
+// props.globals
static naRef f_globals(naContext c, naRef me, int argc, naRef* args)
{
return propNodeGhostCreate(c, globals->get_props());
naCFunction func;
const char* name;
} propfuncs[] = {
- { f_getType, "_getType" },
- { f_getAttribute, "_getAttribute" },
- { f_setAttribute, "_setAttribute" },
- { f_getName, "_getName" },
- { f_getIndex, "_getIndex" },
- { f_getValue, "_getValue" },
- { f_setValue, "_setValue" },
- { f_setIntValue, "_setIntValue" },
- { f_setBoolValue, "_setBoolValue" },
+ { f_getType, "_getType" },
+ { f_getAttribute, "_getAttribute" },
+ { f_setAttribute, "_setAttribute" },
+ { f_getName, "_getName" },
+ { f_getIndex, "_getIndex" },
+ { f_equals, "_equals" },
+ { f_getValue, "_getValue" },
+ { f_setValue, "_setValue" },
+ { f_setIntValue, "_setIntValue" },
+ { f_setBoolValue, "_setBoolValue" },
{ f_setDoubleValue, "_setDoubleValue" },
- { f_getParent, "_getParent" },
- { f_getChild, "_getChild" },
- { f_getChildren, "_getChildren" },
- { f_addChild, "_addChild" },
- { f_addChildren, "_addChildren" },
- { f_removeChild, "_removeChild" },
+ { f_getParent, "_getParent" },
+ { f_getChild, "_getChild" },
+ { f_getChildren, "_getChildren" },
+ { f_addChild, "_addChild" },
+ { f_addChildren, "_addChildren" },
+ { f_removeChild, "_removeChild" },
{ f_removeChildren, "_removeChildren" },
- { f_alias, "_alias" },
- { f_unalias, "_unalias" },
+ { f_alias, "_alias" },
+ { f_unalias, "_unalias" },
{ f_getAliasTarget, "_getAliasTarget" },
- { f_getNode, "_getNode" },
- { f_new, "_new" },
- { f_globals, "_globals" },
+ { f_getNode, "_getNode" },
+ { f_new, "_new" },
+ { f_globals, "_globals" },
{ 0, 0 }
};
projects / flightgear.git / commitdiff