//////////////////////////////////////////////////////////////////////////////
//
// License Agreement:
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// The following are Copyright © 2007, Casey Langen
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//////////////////////////////////////////////////////////////////////////////

#pragma once

#include <boost/shared_ptr.hpp>
#include <uxtheme.h>
#include <tmschema.h>

//////////////////////////////////////////////////////////////////////////////

namespace win32cpp {

//////////////////////////////////////////////////////////////////////////////

class Theme;
typedef boost::shared_ptr<Theme> ThemeRef;

///\brief
///A class that wraps Theme (UXTHEME.DLL) handling for XP+ systems
class Theme : public boost::noncopyable
{
public: // types

private: // types
    typedef HRESULT (__stdcall *PFNCLOSETHEMEDATA)(HTHEME hTheme);
    typedef HRESULT (__stdcall *PFNDRAWTHEMEBACKGROUND)(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, const RECT *pRect,  const RECT *pClipRect);
    typedef HTHEME (__stdcall *PFNOPENTHEMEDATA)(HWND hwnd, LPCWSTR pszClassList);
    typedef HRESULT (__stdcall *PFNDRAWTHEMETEXT)(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwTextFlags, DWORD dwTextFlags2, const RECT *pRect);

public:
    static ThemeRef Create(HWND handle, const std::wstring& className);

public: // destructor
    /*dtor*/    ~Theme();

private: // constructors
    /*ctor*/    Theme(HWND handle, const std::wstring& className);

public: // methods
    HRESULT DrawThemeBackground(HDC hdc, int iPartId, int iStateId, const RECT* pRect, const RECT* pClipRect);

private: // instance data
    HMODULE dll;
    HTHEME theme;
    PFNOPENTHEMEDATA OpenThemeDataProc;
    PFNCLOSETHEMEDATA CloseThemeDataProc;
    PFNDRAWTHEMEBACKGROUND DrawThemeBackgroundProc;
    PFNDRAWTHEMETEXT DrawThemeTextProc;
};

//////////////////////////////////////////////////////////////////////////////

} // namespace win32cpp
