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Game Programming in C++ - Start to Finish
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CEGUIScriptModule.h
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/************************************************************************
filename: CEGUIScriptModule.h
created: 16/7/2004
author: Paul D Turner
purpose: Abstract class interface for scripting support
*************************************************************************/
/*************************************************************************
Crazy Eddie's GUI System (http://www.cegui.org.uk)
Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*************************************************************************/
#ifndef _CEGUIScriptModule_h_
#define _CEGUIScriptModule_h_
#include "CEGUIBase.h"
#include "CEGUIString.h"
#include "CEGUIEvent.h"
// Start of CEGUI namespace section
namespace CEGUI
{
/*!
\brief
Abstract interface required for all scripting support modules to be used with
the CEGUI system.
*/
class CEGUIEXPORT ScriptModule
{
public:
/*************************************************************************
Construction and Destruction
*************************************************************************/
/*!
\brief
Constructor for ScriptModule base class
*/
ScriptModule(void);
/*!
\brief
Destructor for ScriptModule base class.
*/
virtual ~ScriptModule(void) {}
/*************************************************************************
Abstract interface
*************************************************************************/
/*!
\brief
Execute a script file.
\param filename
String object holding the filename of the script file that is to be executed
\param resourceGroup
Resource group idendifier to be passed to the ResourceProvider when loading the script file.
*/
virtual void executeScriptFile(const String& filename, const String& resourceGroup = "") = 0;
/*!
\brief
Execute a scripted global function. The function should not take any parameters and should return an integer.
\param function_name
String object holding the name of the function, in the global script environment, that
is to be executed.
\return
The integer value returned from the script function.
*/
virtual int executeScriptGlobal(const String& function_name) = 0;
/*!
\brief
Execute a scripted global 'event handler' function. The function should take some kind of EventArgs like parameter
that the concrete implementation of this function can create from the passed EventArgs based object. The function
should not return anything.
\param handler_name
String object holding the name of the scripted handler function.
\param e
EventArgs based object that should be passed, by any appropriate means, to the scripted function.
\return
- true if the event was handled.
- false if the event was not handled.
*/
virtual bool executeScriptedEventHandler(const String& handler_name, const EventArgs& e) = 0;
/*!
\brief
Execute script code contained in the given CEGUI::String object.
\param str
String object holding the valid script code that should be executed.
\return
Nothing.
*/
virtual void executeString(const String& str) = 0;
/*!
\brief
Method called during system initialisation, prior to running any scripts via the ScriptModule, to enable the ScriptModule
to perform any operations required to complete initialisation or binding of the script language to the gui system objects.
\return
Nothing.
*/
virtual void createBindings(void) {}
/*!
\brief
Method called during system destruction, after all scripts have been run via the ScriptModule, to enable the ScriptModule
to perform any operations required to cleanup bindings of the script language to the gui system objects, as set-up in the
earlier createBindings call.
\return
Nothing.
*/
virtual void destroyBindings(void) {}
/*!
\brief
Return identification string for the ScriptModule. If the internal id string has not been
set by the ScriptModule creator, a generic string of "Unknown scripting module" will be returned.
\return
String object holding a string that identifies the ScriptModule in use.
*/
const String& getIdentifierString() const;
protected:
String d_identifierString; //!< String that holds some id information about the module.
};
/*!
\brief
Functor class used for binding named script functions to events
*/
class ScriptFunctor
{
public:
ScriptFunctor(const String& functionName) : scriptFunctionName(functionName) {}
ScriptFunctor(const ScriptFunctor& obj) : scriptFunctionName(obj.scriptFunctionName) {}
bool operator()(const EventArgs& e) const;
private:
// no assignment possible
ScriptFunctor& operator=(const ScriptFunctor& rhs);
const String scriptFunctionName;
};
} // End of CEGUI namespace section
#endif // end of guard _CEGUIScriptModule_h_