/*

 * $LynxId: GridText.h,v 1.69 2012/02/12 23:25:38 tom Exp $

 *

 * Specialities of GridText as subclass of HText

 */

#ifndef LYGRIDTEXT_H

#define LYGRIDTEXT_H

#include <HText.h>		/* Superclass */

#ifndef HTFORMS_H

#include <HTForms.h>

#endif /* HTFORMS_H */

#include <HTFont.h>

#include <HTCJK.h>

#ifdef __cplusplus

extern "C" {

#endif

#define TABSTOP 8

#define SPACES  "        "	/* must be at least TABSTOP spaces long */

#define SPLAT   '.'

#define NOCHOP 0

#define CHOP   1

/* just for information:

US-ASCII control characters <32 which are not defined in Unicode standard

=00	U+0000	NULL

=01	U+0001	START OF HEADING

=02	U+0002	START OF TEXT

=03	U+0003	END OF TEXT

=04	U+0004	END OF TRANSMISSION

=05	U+0005	ENQUIRY

=06	U+0006	ACKNOWLEDGE

=07	U+0007	BELL

=08	U+0008	BACKSPACE

=09	U+0009	HORIZONTAL TABULATION

=0A	U+000A	LINE FEED

=0B	U+000B	VERTICAL TABULATION

=0C	U+000C	FORM FEED

=0D	U+000D	CARRIAGE RETURN

=0E	U+000E	SHIFT OUT

=0F	U+000F	SHIFT IN

=10	U+0010	DATA LINK ESCAPE

=11	U+0011	DEVICE CONTROL ONE

=12	U+0012	DEVICE CONTROL TWO

=13	U+0013	DEVICE CONTROL THREE

=14	U+0014	DEVICE CONTROL FOUR

=15	U+0015	NEGATIVE ACKNOWLEDGE

=16	U+0016	SYNCHRONOUS IDLE

=17	U+0017	END OF TRANSMISSION BLOCK

=18	U+0018	CANCEL

=19	U+0019	END OF MEDIUM

=1A	U+001A	SUBSTITUTE

=1B	U+001B	ESCAPE

=1C	U+001C	FILE SEPARATOR

=1D	U+001D	GROUP SEPARATOR

=1E	U+001E	RECORD SEPARATOR

=1F	U+001F	UNIT SEPARATOR

=7F	U+007F	DELETE

*/ extern int HTCurSelectGroupType;

    extern char *HTCurSelectGroupSize;

#if defined(VMS) && defined(VAXC) && !defined(__DECC)

    extern int HTVirtualMemorySize;

#endif				/* VMS && VAXC && !__DECC */

    extern HTChildAnchor *HText_childNextNumber(int n, void **prev);

    extern int HText_findAnchorNumber(void *avoid);

    extern void HText_FormDescNumber(int n, const char **desc);

/*	Is there any file left?

*/

    extern BOOL HText_canScrollUp(HText *text);

    extern BOOL HText_canScrollDown(void);

/*	Move display within window

*/

    extern void HText_scrollUp(HText *text);	/* One page */

    extern void HText_scrollDown(HText *text);	/* One page */

    extern void HText_scrollTop(HText *text);

    extern void HText_scrollBottom(HText *text);

    extern void HText_pageDisplay(int line_num, char *target);

    extern BOOL HText_pageHasPrevTarget(void);

    extern int HText_LinksInLines(HText *text, int line_num, int Lines);

    extern int HText_getAbsLineNumber(HText *text, int anchor_number);

    extern int HText_closestAnchor(HText *text, int offset);

    extern int HText_locateAnchor(HText *text, int anchor_number);

    extern int HText_anchorRelativeTo(HText *text, int top_lineno, int anchor_num);

    extern void HText_setLastChar(HText *text, int ch);

    extern char HText_getLastChar(HText *text);

    extern int HText_sourceAnchors(HText *text);

    extern void HText_setStale(HText *text);

    extern void HText_refresh(HText *text);

    extern const char *HText_getTitle(void);

    extern const char *HText_getSugFname(void);

    extern void HTCheckFnameForCompression(char **fname,

					   HTParentAnchor *anchor,

					   int strip_ok);

    extern const char *HText_getLastModified(void);

    extern const char *HText_getDate(void);

    extern const char *HText_getHttpHeaders(void);

    extern const char *HText_getServer(void);

    extern const char *HText_getOwner(void);

    extern const char *HText_getContentBase(void);

    extern const char *HText_getContentLocation(void);

    extern const char *HText_getMessageID(void);

    extern const char *HText_getRevTitle(void);

#ifdef USE_COLOR_STYLE

    extern const char *HText_getStyle(void);

#endif

    extern void HText_setMainTextOwner(const char *owner);

    extern void print_wwwfile_to_fd(FILE *fp, int is_email, int is_reply);

    extern BOOL HText_select(HText *text);

    extern BOOL HText_POSTReplyLoaded(DocInfo *doc);

    extern BOOL HTFindPoundSelector(const char *selector);

    extern int HTGetRelLinkNum(int num, int rel, int cur);

    extern int HTGetLinkInfo(int number,

			     int want_go,

			     int *go_line,

			     int *linknum,

			     char **hightext,

			     char **lname);

    extern BOOL HText_TAHasMoreLines(int curlink,

				     int direction);

    extern int HTGetLinkOrFieldStart(int curlink,

				     int *go_line,

				     int *linknum,

				     int direction,

				     int ta_skip);

    extern BOOL HText_getFirstTargetInLine(HText *text,

					   int line_num,

					   int utf_flag,

					   int *offset,

					   int *tLen,

					   char **data,

					   const char *target);

    extern int HTisDocumentSource(void);

    extern void HTuncache_current_document(void);

#ifdef USE_SOURCE_CACHE

    extern BOOLEAN HTreparse_document(void);

    extern BOOLEAN HTcan_reparse_document(void);

    extern BOOLEAN HTdocument_settings_changed(void);

#endif

    extern BOOL HTLoadedDocumentEightbit(void);

    extern BOOL HText_LastLineEmpty(HText *me, int IgnoreSpaces);

    extern BOOL HText_PreviousLineEmpty(HText *me, int IgnoreSpaces);

    extern BOOL HText_inLineOne(HText *text);

    extern BOOLEAN HTLoadedDocumentIsHEAD(void);

    extern BOOLEAN HTLoadedDocumentIsSafe(void);

    extern bstring *HTLoadedDocumentPost_data(void);

    extern const char *HTLoadedDocumentBookmark(void);

    extern const char *HTLoadedDocumentCharset(void);

    extern const char *HTLoadedDocumentTitle(void);

    extern const char *HTLoadedDocumentURL(void);

    extern const char *HText_HiddenLinkAt(HText *text, int number);

    extern int HText_HiddenLinkCount(HText *text);

    extern int HText_LastLineOffset(HText *me);

    extern int HText_LastLineSize(HText *me, int IgnoreSpaces);

    extern int HText_PreviousLineSize(HText *me, int IgnoreSpaces);

    extern int HText_getCurrentColumn(HText *text);

    extern int HText_getLines(HText *text);

    extern int HText_getMaximumColumn(HText *text);

    extern int HText_getNumOfBytes(void);

    extern int HText_getNumOfLines(void);

    extern int HText_getPreferredTopLine(HText *text, int line_number);

    extern int HText_getTabIDColumn(HText *text, const char *name);

    extern int HText_getTopOfScreen(void);

    extern int do_www_search(DocInfo *doc);

    extern void HText_NegateLineOne(HText *text);

    extern void HText_RemovePreviousLine(HText *text);

    extern void HText_setNodeAnchorBookmark(const char *bookmark);

    extern void HText_setTabID(HText *text, const char *name);

    extern void *HText_pool_calloc(HText *text, unsigned size);

/* "simple table" stuff */

    extern BOOLEAN HText_endStblTABLE(HText *);

    extern int HText_trimCellLines(HText *text);

    extern void HText_cancelStbl(HText *);

    extern void HText_endStblCOLGROUP(HText *);

    extern void HText_endStblTD(HText *);

    extern void HText_endStblTR(HText *);

    extern void HText_startStblCOL(HText *, int, int, int);

    extern void HText_startStblRowGroup(HText *, int);

    extern void HText_startStblTABLE(HText *, int);

    extern void HText_startStblTD(HText *, int, int, int, int);

    extern void HText_startStblTR(HText *, int);

/* forms stuff */

    extern void HText_beginForm(char *action,

				char *method,

				char *enctype,

				char *title,

				const char *accept_cs);

    extern void HText_endForm(HText *text);

    extern void HText_beginSelect(char *name,

				  int name_cs,

				  int multiple,

				  char *len);

    extern int HText_getOptionNum(HText *text);

    extern char *HText_setLastOptionValue(HText *text,

					  char *value,

					  char *submit_value,

					  int order,

					  int checked,

					  int val_cs,

					  int submit_val_cs);

    extern int HText_beginInput(HText *text,

				int underline,

				InputFieldData * I);

    extern void HText_endInput(HText *text);

    extern PerFormInfo *HText_PerFormInfo(int number);

    extern int HText_SubmitForm(FormInfo * submit_item, DocInfo *doc,

				const char *link_name,

				const char *link_value);

    extern void HText_DisableCurrentForm(void);

    extern void HText_ResetForm(FormInfo * form);

    extern void HText_activateRadioButton(FormInfo * form);

    extern BOOLEAN HText_HaveUserChangedForms(HText *text);

    extern HTList *search_queries;	/* Previous isindex and whereis queries */

    extern void HTSearchQueries_free(void);

    extern void HTAddSearchQuery(char *query);

    extern void user_message(const char *message,

			     const char *argument);

#define _user_message(msg, arg)	mustshow = TRUE, user_message(msg, arg)

    extern void www_user_search(int start_line,

				DocInfo *doc,

				char *target,

				int direction);

    extern void print_crawl_to_fd(FILE *fp,

				  char *thelink,

				  char *thetitle);

    extern char *stub_HTAnchor_address(HTAnchor * me);

    extern void HText_setToolbar(HText *text);

    extern BOOL HText_hasToolbar(HText *text);

    extern void HText_setNoCache(HText *text);

    extern BOOL HText_hasNoCacheSet(HText *text);

    extern BOOL HText_hasUTF8OutputSet(HText *text);

    extern void HText_setKcode(HText *text,

			       const char *charset,

			       LYUCcharset *p_in);

    extern void HText_setBreakPoint(HText *text);

    extern BOOL HText_AreDifferent(HTParentAnchor *anchor,

				   const char *full_address);

    extern int HText_EditTextArea(LinkInfo * form_link);

    extern void HText_EditTextField(LinkInfo * form_link);

    extern void HText_ExpandTextarea(LinkInfo * form_link, int newlines);

    extern int HText_InsertFile(LinkInfo * form_link);

    extern void redraw_lines_of_link(int cur);

    extern void LYMoveToLink(int cur,

			     const char *target,

			     const char *hightext,

			     int flag,

			     int inU,

			     int utf_flag);

#ifdef USE_PRETTYSRC

    extern void HTMark_asSource(void);

#endif

    extern int HTMainText_Get_UCLYhndl(void);

#ifdef KANJI_CODE_OVERRIDE

    extern HTkcode last_kcode;

#endif

    extern HTkcode HText_getKcode(HText *text);

    extern void HText_updateKcode(HText *text, HTkcode kcode);

    extern HTkcode HText_getSpecifiedKcode(HText *text);

    extern void HText_updateSpecifiedKcode(HText *text, HTkcode kcode);

#ifdef __cplusplus

}

#endif

#endif				/* LYGRIDTEXT_H */