amerkoleci / mogre Goto Github PK

#pragma once

// SmartString.h

#include <OgrePrerequisites.h>
#include <OgreCommon.h>

using namespace System::Runtime::InteropServices;

/// <summary>
/// auto convert from managed System::String^ to unmanaged Ogre::String
/// </summary>
class SmartString
{
public:

    SmartString(System::String^ str)
    {
        if (!System::String::IsNullOrEmpty(str))
        {
            SmartString::_InitNativeStringWithCLRString_(_str, str);
        }
    }

    virtual ~SmartString() {}

    /// <summary>
    /// auto convert to Ogre::String
    /// </summary>
    /// <returns>Ogre::String</returns>    
    operator Ogre::String()
    {
        return _str;
    }

    const char* c_str()
    {
        return _str.c_str();
    }

protected:

    Ogre::String _str;

    // wrapper func
    static void _InitNativeStringWithCLRString_(Ogre::String& ostr, System::String^ mstr)
    {
        if (mstr == nullptr)
            throw gcnew System::NullReferenceException("A null string cannot be converted to an Ogre string.");

        System::IntPtr p_mstr = Marshal::StringToHGlobalAnsi(mstr);
        ostr = static_cast<char*>(p_mstr.ToPointer());
        Marshal::FreeHGlobal(p_mstr);
    }
};

// Original code from MogreRoot.cpp:

Root::Root(String^ pluginFileName, String^ configFileName, String^ logFileName)
{
	_createdByCLR = true;
	DECLARE_NATIVE_STRING(o_pluginFileName, pluginFileName);
	DECLARE_NATIVE_STRING(o_configFileName, configFileName);
	DECLARE_NATIVE_STRING(o_logFileName, logFileName);
	_native = new G3D::Root(o_pluginFileName, o_configFileName, o_logFileName);
}

// New code:

Root::Root(String^ pluginFileName, String^ configFileName, String^ logFileName)
{
	_createdByCLR = true;
	_native = new G3D::Root(SmartString(pluginFileName), SmartString(configFileName), SmartString(logFileName));
}