BansheeEngine/CamelotUtility/Source/CmHString.cpp

#include "CmPrerequisitesUtil.h"
#include "CmHString.h"
#include "CmStringTable.h"

namespace CamelotFramework
{
	HString::StringData::StringData()
		:mParameters(nullptr), mIsDirty(true)
	{ }

	HString::StringData::~StringData()
	{
		mUpdateConn.disconnect();

		if(mParameters != nullptr)
			cm_deleteN(mParameters, mStringData->numParameters);
	}

	HString::HString()
	{
		mData = cm_shared_ptr<StringData>();

		mData->mStringData = &StringTable::instance().getStringData(L"");
		mData->mParameters = cm_newN<WString>(mData->mStringData->numParameters);
		mData->mUpdateConn = mData->mStringData->commonData->onStringDataModified.connect(boost::bind(&HString::updateString, this));
	}

	HString::HString(const WString& identifierString)
	{
		mData = cm_shared_ptr<StringData>();

		mData->mStringData = &StringTable::instance().getStringData(identifierString);
		mData->mParameters = cm_newN<WString>(mData->mStringData->numParameters);
		mData->mUpdateConn = mData->mStringData->commonData->onStringDataModified.connect(boost::bind(&HString::updateString, this));
	}

	HString::HString(const HString& copy)
	{
		mData = copy.mData;
	}

	HString::~HString()
	{

	}

	HString::operator const WString& () const 
	{ 
		if(mData->mIsDirty)
		{
			mData->mCachedString = mData->mStringData->concatenateString(mData->mParameters, mData->mStringData->numParameters);
			mData->mIsDirty = false;
		}

		return mData->mCachedString; 
	}

	void HString::setParameter(UINT32 idx, const WString& value)
	{
		mData->mParameters[idx] = value;

		mData->mIsDirty = true;
		mData->onStringModified();
	}

	boost::signals::connection HString::addOnStringModifiedCallback(boost::function<void()> callback) const
	{
		return mData->onStringModified.connect(callback);
	}

	void HString::updateString()
	{
		LocalizedStringData* stringData = &StringTable::instance().getStringData(mData->mStringData->commonData->identifier);

		// If common data changed re-apply the connections
		if(stringData->commonData != mData->mStringData->commonData)
		{
			mData->mUpdateConn.disconnect();
			mData->mUpdateConn = stringData->commonData->onStringDataModified.connect(boost::bind(&HString::updateString, this));
		}

		mData->mStringData = stringData;
		mData->mIsDirty = true;

		mData->onStringModified();
	}
}