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livetrax/libs/glibmm2/glib/glibmm/value.cc

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// -*- c++ -*-
/* $Id: value.cc 292 2006-05-14 12:12:41Z murrayc $ */
/* Copyright 2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm/value.h>
#include <glibmm/objectbase.h>
#include <glibmm/utility.h>
#include <glibmm/wrap.h>
namespace Glib
{
/**** Glib::ValueBase ******************************************************/
ValueBase::ValueBase()
{
GLIBMM_INITIALIZE_STRUCT(gobject_, GValue);
}
void ValueBase::init(GType type)
{
g_value_init(&gobject_, type);
}
void ValueBase::init(const GValue* value)
{
g_value_init(&gobject_, G_VALUE_TYPE(value));
if(value)
g_value_copy(value, &gobject_);
}
ValueBase::ValueBase(const ValueBase& other)
{
GLIBMM_INITIALIZE_STRUCT(gobject_, GValue);
g_value_init(&gobject_, G_VALUE_TYPE(&other.gobject_));
g_value_copy(&other.gobject_, &gobject_);
}
ValueBase& ValueBase::operator=(const ValueBase& other)
{
// g_value_copy() prevents self-assignment and deletes the destination.
g_value_copy(&other.gobject_, &gobject_);
return *this;
}
ValueBase::~ValueBase()
{
g_value_unset(&gobject_);
}
void ValueBase::reset()
{
g_value_reset(&gobject_);
}
/**** Glib::ValueBase_Boxed ************************************************/
// static
GType ValueBase_Boxed::value_type()
{
return G_TYPE_BOXED;
}
void ValueBase_Boxed::set_boxed(const void* data)
{
g_value_set_boxed(&gobject_, data);
}
void* ValueBase_Boxed::get_boxed() const
{
return g_value_get_boxed(&gobject_);
}
GParamSpec* ValueBase_Boxed::create_param_spec(const Glib::ustring& name) const
{
return g_param_spec_boxed(
name.c_str(), 0, 0, G_VALUE_TYPE(&gobject_),
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
/**** Glib::ValueBase_Object ***********************************************/
// static
GType ValueBase_Object::value_type()
{
return G_TYPE_OBJECT;
}
void ValueBase_Object::set_object(Glib::ObjectBase* data)
{
g_value_set_object(&gobject_, (data) ? data->gobj() : 0);
}
Glib::ObjectBase* ValueBase_Object::get_object() const
{
GObject *const data = static_cast<GObject*>(g_value_get_object(&gobject_));
return Glib::wrap_auto(data, false);
}
Glib::RefPtr<Glib::ObjectBase> ValueBase_Object::get_object_copy() const
{
GObject *const data = static_cast<GObject*>(g_value_get_object(&gobject_));
return Glib::RefPtr<Glib::ObjectBase>(Glib::wrap_auto(data, true));
}
GParamSpec* ValueBase_Object::create_param_spec(const Glib::ustring& name) const
{
// Glib::Value_Pointer<> derives from Glib::ValueBase_Object, because
// we don't know beforehand whether a certain type is derived from
// Glib::Object or not. To keep create_param_spec() out of the template
// struggle, we dispatch here at runtime.
if(G_VALUE_HOLDS_OBJECT(&gobject_))
{
return g_param_spec_object(
name.c_str(), 0, 0, G_VALUE_TYPE(&gobject_),
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
else
{
g_return_val_if_fail(G_VALUE_HOLDS_POINTER(&gobject_), 0);
return g_param_spec_pointer(
name.c_str(), 0, 0,
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
}
/**** Glib::ValueBase_Enum *************************************************/
// static
GType ValueBase_Enum::value_type()
{
return G_TYPE_ENUM;
}
void ValueBase_Enum::set_enum(int data)
{
g_value_set_enum(&gobject_, data);
}
int ValueBase_Enum::get_enum() const
{
return g_value_get_enum(&gobject_);
}
GParamSpec* ValueBase_Enum::create_param_spec(const Glib::ustring& name) const
{
return g_param_spec_enum(
name.c_str(), 0, 0,
G_VALUE_TYPE(&gobject_), g_value_get_enum(&gobject_),
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
/**** Glib::ValueBase_Flags ************************************************/
// static
GType ValueBase_Flags::value_type()
{
return G_TYPE_FLAGS;
}
void ValueBase_Flags::set_flags(unsigned int data)
{
g_value_set_flags(&gobject_, data);
}
unsigned int ValueBase_Flags::get_flags() const
{
return g_value_get_flags(&gobject_);
}
GParamSpec* ValueBase_Flags::create_param_spec(const Glib::ustring& name) const
{
return g_param_spec_flags(
name.c_str(), 0, 0,
G_VALUE_TYPE(&gobject_), g_value_get_flags(&gobject_),
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
/**** Glib::ValueBase_String ***********************************************/
// static
GType ValueBase_String::value_type()
{
return G_TYPE_STRING;
}
void ValueBase_String::set_cstring(const char* data)
{
g_value_set_string(&gobject_, data);
}
const char* ValueBase_String::get_cstring() const
{
if(const char *const data = g_value_get_string(&gobject_))
return data;
else
return "";
}
GParamSpec* ValueBase_String::create_param_spec(const Glib::ustring& name) const
{
return g_param_spec_string(
name.c_str(), 0, 0, get_cstring(),
GParamFlags(G_PARAM_READABLE | G_PARAM_WRITABLE));
}
/**** Glib::Value<std::string> *********************************************/
void Value<std::string>::set(const std::string& data)
{
g_value_set_string(&gobject_, data.c_str());
}
/**** Glib::Value<Glib::ustring> *******************************************/
void Value<Glib::ustring>::set(const Glib::ustring& data)
{
g_value_set_string(&gobject_, data.c_str());
}
} // namespace Glib