#ifndef __mtext_h__
#define __mtext_h__

// Text control
#define MTEXTCONTROLCLASS "MTextControl"

#define MTM_SETUSER    (WM_USER)
#define MTM_UPDATE     (WM_USER+1)

// analog of calling MTextCreateEx
// wParam = MTEXT_FLG_*
// lParam = (void*)text
#define MTM_UPDATEEX   (WM_USER+2)

// sets background color for a control
// wParam = (COLORREF)clBack
// lParam = 0 (ignored)
#define MTM_SETBKCOLOR (WM_USER+3)

typedef struct TextObject *HText;

#ifdef MTEXTCONTROL_EXPORTS
	#define MTEXTCONTROL_EXPORT __declspec(dllexport)
#else
	#define MTEXTCONTROL_EXPORT __declspec(dllimport)
#endif

#define MTEXTCONTROL_DLL(T) MTEXTCONTROL_EXPORT T __stdcall

#ifdef __cplusplus
extern "C" {
#endif

enum
{
	// visual text options, used in MS_TEXT_REGISTER
	MTEXT_FANCY_SMILEYS   = 0x00000010, // SmileyAdd smileys
	MTEXT_FANCY_BBCODES   = 0x00000020, // [b], [u], [i]
	MTEXT_FANCY_MATHMOD   = 0x00000040, // enable math module formula parsing
	MTEXT_FANCY_URLS      = 0x00000080, // underline urls
	MTEXT_FANCY_BBCODES2  = 0x00000100, // [color], [img], [url], not implemented yet
	MTEXT_FANCY_SIMPLEFMT = 0x00000200, // simple formatting ("_", "/" and "*")
	MTEXT_FANCY_MASK      = 0x00007fff,
	MTEXT_FANCY_DEFAULT   = 0x00008000, // Use default options

	// text options, used in MS_TEXT_REGISTER
	MTEXT_SYSTEM_HICONS   = 0x00010000, // [$handle=i<HICON as dword>$]
	MTEXT_SYSTEM_HBITMAPS = 0x00010000, // [$handle=b<HBITMAP as dword>$], not implemented yet
	MTEXT_SYSTEM_ESCAPED  = 0x00020000, // passed text is escaped with slashes, not implemented yet
	MTEXT_SYSTEM_MASK     = 0x7fff0000,
	MTEXT_SYSTEM_DEFAULT  = 0x80000000,  // Use default option -- just nothing system is used :)

	// text object flags
	MTEXT_FLG_CHAR        = 0x00000000,
	MTEXT_FLG_WCHAR       = 0x00000001,
	MTEXT_FLG_BIDI_RTL    = 0x00000002,
	MTEXT_FLG_RTF         = 0x00000004,
};

// subscribe to MText services
MTEXTCONTROL_DLL(HANDLE) MTextRegister(const char *userTitle, uint32_t options);

// allocate text object (unicode)
MTEXTCONTROL_DLL(HText) MTextCreateW(HANDLE userHandle, const wchar_t *text);

// allocate text object (advanced)
MTEXTCONTROL_DLL(HText) MTextCreateEx(HANDLE userHandle, const void *text, uint32_t flags);

// allocate text object (advanced)
MTEXTCONTROL_DLL(HText) MTextCreateEx2(HWND hwnd, HANDLE userHandle, const void *text, uint32_t flags);

// destroys text object
MTEXTCONTROL_DLL(int) MTextDestroy(HText text);

// activates text object
MTEXTCONTROL_DLL(int) MTextActivate(HText text, bool bActivate = true);

// measures text object
// result = 1 (success), 0 (failure)
// sz->cx is interpreted as maximum width allowed.
// wrapped text size is stored in sz, text
MTEXTCONTROL_DLL(int) MTextMeasure(HDC dc, SIZE *sz, HText text);

// displays text object
// result = 1 (success), 0 (failure)
MTEXTCONTROL_DLL(int) MTextDisplay(HDC dc, POINT pos, SIZE sz, HText text);

// sets a contact & protocol (optionally, for hContact == 0) for text object (required for valid stickers' processing)
MTEXTCONTROL_DLL(int) MTextSetProto(HText text, MCONTACT hContact, const char *szProto = nullptr);

// sets parent window for text object (this is required for mouse handling, etc)
MTEXTCONTROL_DLL(int) MTextSetParent(HText text, HWND hwnd);

// send message to an object
MTEXTCONTROL_DLL(int) MTextSendMessage(HWND hwnd, HText text, UINT msg, WPARAM wParam, LPARAM lParam);

#ifdef __cplusplus
}
#endif

#endif // __mtext_h__