ref: c8b187f9db503465460d8bafa2d7a758bbcf59ca
dir: /libtk/textw.h/
typedef struct TkText TkText; typedef struct TkTitem TkTitem; typedef struct TkTline TkTline; typedef struct TkTindex TkTindex; typedef struct TkTmarkinfo TkTmarkinfo; typedef struct TkTtaginfo TkTtaginfo; typedef struct TkTwind TkTwind; enum { /* text item types */ TkTascii, /* contiguous string of ascii chars, all with same tags */ TkTrune, /* printable utf (one printing position) */ TkTtab, TkTnewline, /* line field contains pointer to containing line */ TkTcontline, /* end of non-newline line; line field as with TkTnewline */ TkTwin, TkTmark, TkTbyitem = 0, /* adjustment units */ TkTbyitemback, TkTbytline, TkTbytlineback, TkTbychar, TkTbycharback, TkTbycharstart, TkTbyline, TkTbylineback, TkTbylinestart, TkTbylineend, TkTbywordstart, TkTbywordend, TkTbywrapstart, TkTbywrapend, TkTselid = 0, /* id of sel tag */ TkTmaxtag = 32, Textwidth = 40, /* default width, in chars */ Textheight = 10, /* default height, in chars */ TkTfirst = (1<<0), /* first line in buffer, or after a TkTlast */ TkTlast = (1<<1), /* TkTnewline at end of line */ TkTdrawn = (1<<2), /* screen cache copy is ok */ TkTdlocked = (1<<3), /* display already locked */ TkTjustfoc = (1<<4), /* got focus on last B1 press */ TkTnodrag = (1<<5), /* ignore B1 drag until B1 up */ TkTunset = (1<<31), /* marks int tag options "unspecified" */ TkTborderwidth = 0, TkTjustify, TkTlmargin1, TkTlmargin2, TkTlmargin3, TkTrmargin, TkTspacing1, TkTspacing2, TkTspacing3, TkToffset, TkTunderline, TkToverstrike, TkTrelief, TkTwrap, TkTlineheight, TkTnumopts }; struct TkTline { Point orig; /* where to put first item of line */ int width; int height; int ascent; int flags; TkTitem* items; TkTline* next; TkTline* prev; }; struct TkText { TkTline start; /* fake before-the-first line */ TkTline end; /* fake after-the-last line */ Tk* tagshare; TkTtabstop* tabs; TkTtaginfo* tags; TkTmarkinfo* marks; char* xscroll; char* yscroll; uchar selunit; /* select adjustment unit */ uchar tflag; /* various text-specific flags */ int nlines; /* number of nl items in widget */ TkTitem* selfirst; /* first item marked with sel tag */ TkTitem* sellast; /* item after last marked with sel tag */ Point deltatv; /* vector from text-space to view-space */ Point deltaiv; /* vector from image-space to view-space */ Point current; /* last known mouse pos */ Point track; /* for use when B1 or B2 is down */ int nexttag; /* next usable tag index */ TkTitem* mouse; /* mouse focus */ int inswidth; /* width of insertion cursor */ int sborderwidth; int opts[TkTnumopts]; int propagate; int scrolltop[2]; int scrollbot[2]; Image* image; uchar cur_flag; /* text cursor to be shown up? */ Rectangle cur_rec; /* last text cursor rectangle */ }; struct TkTwind { Tk* sub; /* Subwindow of canvas */ Tk* focus; /* Current Mouse focus */ int width; /* current internal width */ int height; /* current internal height */ int owned; /* true if window is destroyed on item deletion */ int align; /* how to align within line */ char* create; /* creation script */ int padx; /* extra space on each side */ int pady; /* extra space on top and bot */ int ascent; /* distance from top of widget to baseline */ int stretch; /* true if need to stretch height */ }; struct TkTitem { uchar kind; /* e.g. TkTascii, etc */ uchar tagextra; short width; TkTitem *next; union { char* string; TkTwind* win; TkTmarkinfo* mark; TkTline* line; } u; ulong tags[1]; /* TkTitem length extends tagextra ulongs beyond */ }; struct TkTmarkinfo { char* name; int gravity; TkTitem* cur; TkTmarkinfo* next; }; struct TkTtaginfo { int id; char* name; TkEnv* env; TkTtabstop* tabs; TkTtaginfo* next; TkAction* binds; /* Binding of current events */ int opts[TkTnumopts]; }; struct TkTindex { TkTitem* item; TkTline* line; int pos; /* index within multichar item */ }; extern TkCmdtab tkttagcmd[]; extern TkCmdtab tktmarkcmd[]; extern TkCmdtab tktwincmd[]; extern void tkfreetext(Tk*); extern char* tktaddmarkinfo(TkText*, char*, TkTmarkinfo**); extern char* tktaddtaginfo(Tk*, char*, TkTtaginfo**); extern int tktadjustind(TkText*, int, TkTindex*); extern int tktanytags(TkTitem*); extern Rectangle tktbbox(Tk*, TkTindex*); extern void tktdirty(Tk*); extern int tktdispwidth(Tk*, TkTtabstop *tabs, TkTitem*, Font*, int, int, int); extern void tktendind(TkText*, TkTindex*); extern char* tktextcursor(Tk*, char*, char **); extern Tk* tktextevent(Tk*, int, void*); extern Tk* tktinwindow(Tk*, Point*); extern char* tktextselection(Tk*, char*, char**); extern void tktextsize(Tk*, int); extern TkTmarkinfo* tktfindmark(TkTmarkinfo*, char*); extern int tktfindsubitem(Tk*, TkTindex*); extern TkTtaginfo* tktfindtag(TkTtaginfo*, char*); extern char* tktfixgeom(Tk*, TkTline*, TkTline*, int); extern void tktfreeitems(TkText*, TkTitem*, int); extern void tktfreelines(TkText*, TkTline*, int); extern void tktfreemarks(TkTmarkinfo*); extern void tktfreetabs(TkTtabstop*); extern void tktfreetags(TkTtaginfo*); extern int tktindcompare(TkText*, TkTindex*, int, TkTindex*); extern int tktindbefore(TkTindex*, TkTindex*); extern int tktindrune(TkTindex*); extern char* tktinsert(Tk*, TkTindex*, char*, TkTitem*); extern int tktisbreak(int); extern void tktitemind(TkTitem*, TkTindex*); extern char* tktiteminsert(TkText*, TkTindex*, TkTitem*); extern TkTline* tktitemline(TkTitem*); extern char* tktindparse(Tk*, char**, TkTindex*); extern TkTitem* tktlastitem(TkTitem*); extern int tktlinenum(TkText*, TkTindex*); extern int tktlinepos(TkText*, TkTindex*); extern int tktmarkind(Tk*, char*, TkTindex*); extern char* tktmarkmove(Tk*, TkTmarkinfo*, TkTindex*); extern char* tktmarkparse(Tk*, char**, TkTmarkinfo**); extern int tktmaxwid(TkTline*); extern char* tktnewitem(int, int, TkTitem**); extern char* tktnewline(int, TkTitem*, TkTline*, TkTline*, TkTline**); extern int tktposcount(TkTitem*); extern TkTline* tktprevwrapline(Tk*, TkTline*); extern void tktremitem(TkText*, TkTindex*); extern int tktsametags(TkTitem*, TkTitem*); extern char* tktsplititem(TkTindex*); extern void tktstartind(TkText*, TkTindex*); extern char* tkttagchange(Tk*, int, TkTindex*, TkTindex*, int); extern int tkttagbit(TkTitem*, int, int); extern void tkttagcomb(TkTitem*, TkTitem*, int); extern int tkttagind(Tk*, char*, int, TkTindex*); extern char* tkttagname(TkText*, int); extern int tkttagnrange(TkText*, int, TkTindex*, TkTindex*, TkTindex*, TkTindex*); extern void tkttagopts(Tk*, TkTitem*, int*, TkEnv*, TkTtabstop **, int); extern char* tkttagparse(Tk*, char**, TkTtaginfo**); extern int tkttagset(TkTitem*, int); extern int tktxyind(Tk*, int, int, TkTindex*); extern void tktxtforgetsub(Tk*, Tk*);