137 lines
4.8 KiB
C++
137 lines
4.8 KiB
C++
/*------------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2004 Media Development Loan Fund
|
|
|
|
This file is part of the LiveSupport project.
|
|
http://livesupport.campware.org/
|
|
To report bugs, send an e-mail to bugs@campware.org
|
|
|
|
LiveSupport is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
LiveSupport 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with LiveSupport; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
|
|
Author : $Author: fgerlits $
|
|
Version : $Revision: 1.5 $
|
|
Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/core/src/FadeInfo.cxx,v $
|
|
|
|
------------------------------------------------------------------------------*/
|
|
|
|
/* ============================================================ include files */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "configure.h"
|
|
#endif
|
|
|
|
#include <sstream>
|
|
|
|
#include "LiveSupport/Core/FadeInfo.h"
|
|
|
|
using namespace boost::posix_time;
|
|
|
|
using namespace LiveSupport::Core;
|
|
|
|
/* =================================================== local data structures */
|
|
|
|
|
|
/* ================================================ local constants & macros */
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* The name of the config element for this class
|
|
*----------------------------------------------------------------------------*/
|
|
const std::string FadeInfo::configElementNameStr = "fadeInfo";
|
|
|
|
/**
|
|
* The name of the attribute to get the id of the audio clip.
|
|
*/
|
|
static const std::string idAttrName = "id";
|
|
|
|
/**
|
|
* The name of the attribute to get the fade in.
|
|
*/
|
|
static const std::string fadeInAttrName = "fadeIn";
|
|
|
|
/**
|
|
* The name of the attribute to get the fade out.
|
|
*/
|
|
static const std::string fadeOutAttrName = "fadeOut";
|
|
|
|
|
|
/* =============================================== local function prototypes */
|
|
|
|
|
|
/* ============================================================= module code */
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* Create a fade info object based on an XML element.
|
|
*----------------------------------------------------------------------------*/
|
|
void
|
|
FadeInfo :: configure(const xmlpp::Element & element)
|
|
throw (std::invalid_argument)
|
|
{
|
|
if (element.get_name() != configElementNameStr) {
|
|
std::string eMsg = "bad configuration element ";
|
|
eMsg += element.get_name();
|
|
throw std::invalid_argument(eMsg);
|
|
}
|
|
|
|
const xmlpp::Attribute * attribute;
|
|
|
|
if (!(attribute = element.get_attribute(idAttrName))) {
|
|
std::string eMsg = "missing attribute ";
|
|
eMsg += idAttrName;
|
|
throw std::invalid_argument(eMsg);
|
|
}
|
|
id.reset(new UniqueId(attribute->get_value()));
|
|
|
|
if (!(attribute = element.get_attribute(fadeInAttrName))) {
|
|
std::string eMsg = "missing attribute ";
|
|
eMsg += idAttrName;
|
|
throw std::invalid_argument(eMsg);
|
|
}
|
|
fadeIn.reset(new time_duration(
|
|
duration_from_string(attribute->get_value())));
|
|
|
|
if (!(attribute = element.get_attribute(fadeOutAttrName))) {
|
|
std::string eMsg = "missing attribute ";
|
|
eMsg += idAttrName;
|
|
throw std::invalid_argument(eMsg);
|
|
}
|
|
fadeOut.reset(new time_duration(
|
|
duration_from_string(attribute->get_value())));
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* Return a string containing the essential fields of this object, in XML.
|
|
*----------------------------------------------------------------------------*/
|
|
Ptr<Glib::ustring>::Ref
|
|
FadeInfo :: getXmlElementString(void) throw ()
|
|
{
|
|
Ptr<Glib::ustring>::Ref xmlString(new Glib::ustring);
|
|
|
|
xmlString->append("<");
|
|
xmlString->append(configElementNameStr + " ");
|
|
xmlString->append(idAttrName + "=\""
|
|
+ std::string(*id)
|
|
+ "\" ");
|
|
xmlString->append(fadeInAttrName + "=\""
|
|
+ to_simple_string(*fadeIn)
|
|
+ "\" ");
|
|
xmlString->append(fadeOutAttrName + "=\""
|
|
+ to_simple_string(*fadeOut)
|
|
+ "\"/>");
|
|
return xmlString;
|
|
}
|
|
|