Work/common/RESDATA.HPP

#ifndef _COMMON_RESDATA_HPP_
#define _COMMON_RESDATA_HPP_
#ifndef _COMMON_WINDOWS_HPP_
#include <common/windows.hpp>
#endif
#ifndef _COMMON_STRING_HPP_
#include <common/string.hpp>
#endif
#ifndef _COMMON_BLOCK_HPP_
#include <common/block.hpp>
#endif

class ResType
{
public:

  enum Resource {RtAccelerator = (int)RT_ACCELERATOR, RtBitmap = (int)RT_BITMAP, RtDialog = (int)RT_DIALOG,
	       RtFont=(int)RT_FONT,RtFontDir=(int)RT_FONTDIR,RtMenu=(int)RT_MENU,RtData=(int)RT_RCDATA,
				 RtString=(int)RT_STRING,RtMessageTable=(int)RT_MESSAGETABLE,RtCursor=(int)RT_CURSOR,
				 RtGroupCursor=(int)RT_GROUP_CURSOR,RtIcon=(int)RT_ICON,RtGroupIcon=(int)RT_GROUP_ICON,
				 RtVersion=(int)RT_VERSION};
};

class ResDisposition
{
public:
  enum Disposition{Assume,Delete,Invalid};
};

template <class T>
class ResData
{
public:
  ResData(void);
	ResData(const ResData &someResData);
	ResData(WORD resourceId,ResType::Resource resType=ResType::RtData,HMODULE hResModule=GetModuleHandle(0));
	ResData(const String& resName, ResType::Resource resType = ResType::RtData, HMODULE hResModule = GetModuleHandle(0));
  virtual ~ResData();
	ResData &operator=(const ResData &someResData);
	ResData &operator=(const String &resName);
	operator T*(void)const;
	DWORD getSize()const;
	WORD isOkay(void)const;
private:
	void create(const String &resName,ResType::Resource resType=ResType::RtData,HMODULE hResModule=::GetModuleHandle(0));
	void create(WORD resourceId, ResType::Resource resType = ResType::RtData, HMODULE hResModule = ::GetModuleHandle(0));
	void destroy(void);
	HRSRC resHandle(void)const;
	void resHandle(HRSRC resHandle);
	HGLOBAL resData(void)const;
	void resData(HGLOBAL resData);
	ResDisposition::Disposition resDisp(void)const;
	void resDisp(ResDisposition::Disposition resDisp);

  HRSRC mhResHandle;                 // returned from ::FindResource()
	HGLOBAL mhResData;                 // returned from ::LoadResource();
	HMODULE mhResModule;               // the module
	T* pData;
	ResDisposition::Disposition mDisposition;
};

template <class T>
inline
ResData<T>::ResData(void)
: mhResHandle(0), mhResData(0), mDisposition(ResDisposition::Invalid)
{
}

template <class T>
inline
ResData<T>::ResData(const ResData &someResData)
: mhResHandle(0), mhResData(0), mDisposition(ResDisposition::Invalid)
{
  *this=someResData;
}

template <class T>
inline
ResData<T>::ResData(const String &resName,ResType::Resource resType,HMODULE hResModule)
: mhResHandle(0), mhResData(0), mhResModule(hResModule), mDisposition(ResDisposition::Delete)
{
  create(resName,resType,hResModule);
}


template <class T>
inline
ResData<T>::ResData(WORD resourceId, ResType::Resource resType, HMODULE hResModule)
	: mhResHandle(0), mhResData(0), mhResModule(hResModule), mDisposition(ResDisposition::Delete)
{
	create(resourceId, resType, hResModule);
}


template <class T>
inline
ResData<T>::~ResData()
{
  destroy();
}

template <class T>
inline
ResData<T> &ResData<T>::operator=(const ResData &someResData)
{
	if(!someResData.isOkay())return *this;
  destroy();
	resData(someResData.resData());
	resHandle(someResData.resHandle());
	resDisp(ResDisposition::Assume);
	return *this;
}

template <class T>
inline
ResData<T> &ResData<T>::operator=(const String &resName)
{
  if(resName.isNull())return *this;
	destroy();
	create(resName);
	return *this;
}

template <class T>
inline
DWORD ResData<T>::getSize()const
{
	if (!isOkay())return 0;
	return ::SizeofResource(mhResModule, mhResHandle);
}

template <class T>
inline
ResData<T>::operator T*(void)const
{
	return pData;
}

template <class T>
inline
void ResData<T>::create(const String &resName,ResType::Resource resType,HMODULE hResModule)
{
	ResType resourceType = ResType();
  destroy();
	resHandle(::FindResource(hResModule, resName, MAKEINTRESOURCE(resType)));
	if(!resHandle())return;
	resData(::LoadResource(hResModule,mhResHandle));
	resDisp(ResDisposition::Delete);
	pData = (T*)::LockResource(resData());
}

template <class T>
inline
void ResData<T>::create(WORD resourceId, ResType::Resource resType, HMODULE hResModule)
{
	ResType resourceType = ResType();
	destroy();
	//	resHandle(::FindResource(hResModule, resName, (const char*)resType));
	resHandle(::FindResource(hResModule, MAKEINTRESOURCE(resourceId), MAKEINTRESOURCE(resType)));
	if (!resHandle())return;
	resData(::LoadResource(hResModule, mhResHandle));
	resDisp(ResDisposition::Delete);
	pData = (T*)::LockResource(resData());
}



template <class T>
inline
void ResData<T>::destroy(void)
{
  if(!resData()||ResDisposition::Assume==resDisp())return;
	::FreeResource(resData());
	resData(0);
	resHandle(0);
	pData = 0;
	resDisp(ResDisposition::Invalid);
}

template <class T>
inline
HRSRC ResData<T>::resHandle(void)const
{
  return mhResHandle;
}

template <class T>
inline
void ResData<T>::resHandle(HRSRC resHandle)
{
  mhResHandle=resHandle;
}

template <class T>
inline
HGLOBAL ResData<T>::resData(void)const
{
  return mhResData;
}

template <class T>
inline
void ResData<T>::resData(HGLOBAL resData)
{
  mhResData=resData;
}

template <class T>
inline
ResDisposition::Disposition ResData<T>::resDisp(void)const
{
  return mDisposition;
}

template <class T>
inline
void ResData<T>::resDisp(ResDisposition::Disposition resDisp)
{
  mDisposition=resDisp;
}

template <class T>
inline
WORD ResData<T>::isOkay(void)const
{
  return (resData()&&resHandle());
}
#endif