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Add a template based get/set_property API to PBD::XMLNode

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This commit is contained in:
Tim Mayberry 2016-09-02 23:08:32 +10:00
parent 8f516a2c4f
commit ae27e33f29
2 changed files with 68 additions and 15 deletions
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66
libs/pbd/pbd/xml++.h
View File

@ -36,11 +36,27 @@
#include <libxml/tree.h>
#include <boost/shared_ptr.hpp>
#include <glibmm/ustring.h>
#include "pbd/string_convert.h"
#include "pbd/libpbd_visibility.h"
class XMLTree;
class XMLNode;
class XMLProperty;
class LIBPBD_API XMLProperty {
public:
XMLProperty(const std::string& n, const std::string& v = std::string());
~XMLProperty();
const std::string& name() const { return _name; }
const std::string& value() const { return _value; }
const std::string& set_value(const std::string& v) { return _value = v; }
private:
std::string _name;
std::string _value;
};
typedef std::vector<XMLNode *> XMLNodeList;
typedef std::vector<boost::shared_ptr<XMLNode> > XMLSharedNodeList;
@ -129,6 +145,40 @@ public:
XMLProperty* add_property(const char* name, const char* value = "");
XMLProperty* add_property(const char* name, const long value);
bool set_property (const char* name, const std::string& value);
bool set_property (const char* name, const char* cstr) {
return set_property (name, std::string(cstr));
}
bool set_property (const char* name, const Glib::ustring& ustr)
{
return set_property (name, ustr.raw ());
}
template<class T>
bool set_property (const char* name, const T& value)
{
std::string str;
if (!PBD::to_string<T> (value, str)) {
return false;
}
return set_property(name, str);
}
bool get_property (const char* name, std::string& value) const;
template <class T>
bool get_property (const char* name, T& value) const
{
XMLProperty const* const prop = property (name);
if (!prop) {
return false;
}
return PBD::string_to<T> (prop->value (), value);
}
void remove_property(const std::string&);
void remove_property_recursively(const std::string&);
@ -152,20 +202,6 @@ private:
void clear_lists ();
};
class LIBPBD_API XMLProperty {
public:
XMLProperty(const std::string& n, const std::string& v = std::string());
~XMLProperty();
const std::string& name() const { return _name; }
const std::string& value() const { return _value; }
const std::string& set_value(const std::string& v) { return _value = v; }
private:
std::string _name;
std::string _value;
};
class LIBPBD_API XMLException: public std::exception {
public:
explicit XMLException(const std::string msg) : _message(msg) {}

17
libs/pbd/xml++.cc
View File

@ -590,6 +590,23 @@ XMLNode::add_property(const char* name, const long value)
return add_property(name, str);
}
bool
XMLNode::set_property(const char* name, const string& str) {
return add_property (name, str);
}
bool
XMLNode::get_property(const char* name, std::string& value) const
{
XMLProperty const* const prop = property (name);
if (!prop)
return false;
value = prop->value ();
return true;
}
void
XMLNode::remove_property(const string& name)
{