/*	Public domain	*/

#ifndef _AGAR_GUI_TEXTBOX_H_
#define _AGAR_GUI_TEXTBOX_H_

#include <agar/gui/widget.h>
#include <agar/gui/editable.h>
#include <agar/gui/label.h>
#include <agar/gui/scrollbar.h>
#include <agar/gui/button.h>
#include <agar/gui/begin.h>

typedef struct ag_textbox {
	struct ag_widget _inherit;        /* AG_Widget -> AG_Textbox */
	struct ag_editable *_Nonnull ed;  /* Input field */
	Uint flags;
#define AG_TEXTBOX_MULTILINE     0x000001 /* Enable multiline edition */
#define AG_TEXTBOX_UPPERCASE     0x000002 /* Render in uppercase */
#define AG_TEXTBOX_PASSWORD      0x000004 /* Hide buffer contents */
#define AG_TEXTBOX_ABANDON_FOCUS 0x000008 /* Lose focus on return */
#define AG_TEXTBOX_COMBO         0x000010 /* Used by AG_Combo */
#define AG_TEXTBOX_HFILL         0x000020
#define AG_TEXTBOX_VFILL         0x000040
#define AG_TEXTBOX_LOWERCASE     0x000080 /* Render in lowercase */
#define AG_TEXTBOX_EXPAND        (AG_TEXTBOX_HFILL | AG_TEXTBOX_VFILL)
#define AG_TEXTBOX_READONLY      0x000100 /* Disable user input */
#define AG_TEXTBOX_INT_ONLY      0x000200 /* Accepts only valid strtol() input */
#define AG_TEXTBOX_FLT_ONLY      0x000400 /* Accepts only valid strtof() input */
#define AG_TEXTBOX_CATCH_TAB     0x000800 /* Enter literal tabs into text
					     (instead of cycling focus) */
#define AG_TEXTBOX_CURSOR_MOVING 0x001000 /* Cursor is being moved */
#define AG_TEXTBOX_EXCL          0x004000 /* Exclusive access to buffer */
#define AG_TEXTBOX_NO_KILL_YANK  0x008000 /* Disable [K]ill and [Y]ank functions */
#define AG_TEXTBOX_RETURN_BUTTON 0x010000 /* Display a Return button */
#define AG_TEXTBOX_NO_ALT_LATIN1 0x020000 /* Disable alt-key LATIN-1 mappings */
#define AG_TEXTBOX_WORDWRAP	 0x040000 /* Enable word wrapping */
#define AG_TEXTBOX_NOPOPUP	 0x080000 /* Disable popup menu */
#define AG_TEXTBOX_MULTILINGUAL	 0x100000 /* Enable multilingual edition */
#define AG_TEXTBOX_NO_SHADING    0x200000 /* Disable shading around field */
#define AG_TEXTBOX_UNDERSIZE     0x400000 /* Width is insufficient for label */

	int surfaceLbl;                   /* Rendered label surface (or -1) */
        char *_Nullable label;            /* Text label (optional) */

	AG_Scrollbar *_Nullable hBar;   /* Horizontal bar (for MULTILINE) */
	AG_Scrollbar *_Nullable vBar;   /* Vertical bar (for MULTILINE) */
	AG_Rect r;                      /* Editable area */
	char *text;                     /* Default (built-in) buffer */
	AG_Button *_Nullable btnRet;    /* Optional RETURN button */
} AG_Textbox;

#define   AGTEXTBOX(obj)     ((AG_Textbox *)(obj))
#define  AGcTEXTBOX(obj)     ((const AG_Textbox *)(obj))
#define  AG_TEXTBOX_ISA(o)   (((AGOBJECT(o)->cid & 0xff000000) >> 24) == 0x27)
#define  AG_TEXTBOX_SELF()    AGTEXTBOX(  AG_OBJECT(0,         "AG_Widget:AG_Textbox:*") )
#define  AG_TEXTBOX_PTR(n)    AGTEXTBOX(  AG_OBJECT((n),       "AG_Widget:AG_Textbox:*") )
#define  AG_TEXTBOX_NAMED(n)  AGTEXTBOX(  AG_OBJECT_NAMED((n), "AG_Widget:AG_Textbox:*") )
#define AG_cTEXTBOX_SELF()   AGcTEXTBOX( AG_cOBJECT(0,         "AG_Widget:AG_Textbox:*") )
#define AG_cTEXTBOX_PTR(n)   AGcTEXTBOX( AG_cOBJECT((n),       "AG_Widget:AG_Textbox:*") )
#define AG_cTEXTBOX_NAMED(n) AGcTEXTBOX( AG_cOBJECT_NAMED((n), "AG_Widget:AG_Textbox:*") )

__BEGIN_DECLS
extern AG_WidgetClass agTextboxClass;

AG_Textbox *_Nonnull AG_TextboxNewS(void *_Nullable, Uint, const char *_Nullable);
AG_Textbox *_Nonnull AG_TextboxNew(void *_Nullable, Uint, const char *_Nullable, ...)
                                  FORMAT_ATTRIBUTE(printf,3,4);

void AG_TextboxSizeHint(AG_Textbox *_Nonnull, const char *_Nonnull);
void AG_TextboxSizeHintPixels(AG_Textbox *_Nonnull, Uint,Uint);
void AG_TextboxSizeHintLines(AG_Textbox *_Nonnull, Uint);

void AG_TextboxSetLabelS(AG_Textbox *_Nonnull, const char *_Nonnull);
void AG_TextboxSetLabel(AG_Textbox *_Nonnull, const char *_Nonnull, ...)
                       FORMAT_ATTRIBUTE(printf,2,3);

void AG_TextboxSetWordWrap(AG_Textbox *_Nonnull, int);
void AG_TextboxPrintf(AG_Textbox *_Nonnull, const char *_Nonnull, ...);

void AG_TextboxSetPassword(AG_Textbox *, int);
void AG_TextboxSetExcl(AG_Textbox *, int);

int  AG_TextboxMapPosition(AG_Textbox *_Nonnull, int,int, int *_Nonnull);
void AG_TextboxMoveCursor(AG_Textbox *_Nonnull, int,int);
void AG_TextboxSetCursorPos(AG_Textbox *_Nonnull, int);
int  AG_TextboxGetCursorPos(const AG_Textbox *_Nonnull);

void AG_TextboxBindASCII(AG_Textbox *_Nonnull, char *_Nonnull, AG_Size);
#ifdef AG_UNICODE
void AG_TextboxBindUTF8(AG_Textbox *_Nonnull, char *_Nonnull, AG_Size);
void AG_TextboxBindEncoded(AG_Textbox *_Nonnull, const char *_Nonnull,
                           char *_Nonnull, AG_Size);
void AG_TextboxBindText(AG_Textbox *_Nonnull, AG_TextElement *_Nonnull);
void AG_TextboxSetLang(AG_Textbox *, enum ag_language);
#else
# define AG_TextboxBindUTF8(ed,b,s) AG_TextboxBindASCII((ed),(b),(s))
#endif

void AG_TextboxAutocomplete(AG_Textbox *_Nonnull, _Nullable AG_EventFn,
                            const char *_Nullable, ...);

void AG_TextboxSetPlaceholder(AG_Textbox *_Nonnull, const char *_Nullable, ...);
void AG_TextboxSetPlaceholderS(AG_Textbox *_Nonnull, const char *_Nullable);

void           AG_TextboxSetString(AG_Textbox *_Nonnull, const char *_Nonnull);
void           AG_TextboxClearString(AG_Textbox *_Nonnull);
char *_Nonnull AG_TextboxDupString(AG_Textbox *_Nonnull);
AG_Size        AG_TextboxCopyString(AG_Textbox *_Nonnull, char *_Nonnull,
                                    AG_Size);

int    AG_TextboxInt(AG_Textbox *_Nonnull);
void   AG_TextboxSetIntOnly(AG_Textbox *, int);
float  AG_TextboxFloat(AG_Textbox *_Nonnull);
double AG_TextboxDouble(AG_Textbox *_Nonnull);
void   AG_TextboxSetFltOnly(AG_Textbox *, int);
__END_DECLS

#ifdef AG_LEGACY
# define AG_TEXTBOX_NOEMACS  AG_TEXTBOX_NO_KILL_YANK
# define AG_TEXTBOX_NOLATIN1 AG_TEXTBOX_NO_ALT_LATIN1
#endif

#include <agar/gui/close.h>
#endif /* _AGAR_GUI_TEXTBOX_H_ */