ref: c8b187f9db503465460d8bafa2d7a758bbcf59ca
dir: /libtk/canvs.h/
typedef struct TkCimeth TkCimeth; typedef struct TkCitem TkCitem; typedef struct TkCanvas TkCanvas; typedef struct TkCline TkCline; typedef struct TkCtag TkCtag; typedef struct TkCpoints TkCpoints; typedef struct TkCwind TkCwind; struct TkCline { int arrow; int shape[3]; int width; Image* stipple; Image* pen; int arrowf; int arrowl; int capstyle; int smooth; int steps; }; struct TkCwind { Tk* sub; /* Subwindow of canvas */ Tk* focus; /* Current Mouse focus */ int width; /* Requested width */ int height; /* Requested height */ int flags; /* possible: Tkanchor|Tksetwidth|Tksetheight */ }; struct TkCpoints { int npoint; /* Number of points */ Point* parampt; /* Parameters in fixed point */ Point* drawpt; /* Draw coord in pixels */ Rectangle bb; /* Bounding box in pixels */ }; struct TkCitem { int id; /* Unique id */ int type; /* Object type */ TkCpoints p; /* Points plus bounding box */ TkEnv* env; /* Colors & fonts */ TkCitem* next; /* Z order */ TkName* tags; /* Temporary tag spot */ TkCtag* stag; /* Real tag structure */ // char obj[TKSTRUCTALIGN]; }; struct TkCtag { TkCitem* item; /* Link to item */ TkName* name; /* Text name or id */ TkCtag* taglist; /* link items with this tag */ TkCtag* itemlist; /* link tags for this item */ }; enum { /* Item types */ TkCVline, TkCVtext, TkCVrect, TkCVoval, TkCVbitmap, TkCVpoly, TkCVwindow, TkCVimage, TkCVarc, TkCselto = 0, TkCselfrom, TkCseladjust, TkCbufauto = 0, TkCbufnone, TkCbufvisible, TkCbufall, TkCadd = 0, TkCfind, TkChash = 32, TkCarrowf = (1<<0), TkCarrowl = (1<<1), Tknarrow = 6 /* Number of points in arrow */ }; struct TkCanvas { int close; int confine; int cleanup; int scrollr[4]; Rectangle region; Rectangle update; /* Area to paint next draw */ Point view; TkCitem* selection; int width; int height; int sborderwidth; int xscrolli; /* Scroll increment */ int yscrolli; char* xscroll; /* Scroll commands */ char* yscroll; int id; /* Unique id */ TkCitem* head; /* Items in Z order */ TkCitem* tail; /* Head is lowest, tail is highest */ TkCitem* focus; /* Keyboard focus */ TkCitem* mouse; /* Mouse focus */ TkCitem* grab; TkName* current; /* Fake for current tag */ TkCtag curtag; Image* image; /* Drawing space */ int ialloc; /* image was allocated by us? */ Image* mask; /* mask space (for stippling) */ TkName* thash[TkChash]; /* Tag hash */ int actions; int actlim; int buffer; }; struct TkCimeth { char* name; char* (*create)(Tk*, char *arg, char **val); void (*draw)(Image*, TkCitem*, TkEnv*); void (*free)(TkCitem*); char* (*coord)(TkCitem*, char*, int, int); char* (*cget)(TkCitem*, char*, char**); char* (*conf)(Tk*, TkCitem*, char*); int (*hit)(TkCitem*, Point); }; extern TkCimeth tkcimethod[]; extern int cvslshape[]; extern Rectangle bbnil; extern Rectangle huger; /* General */ extern char* tkcaddtag(Tk*, TkCitem*, int); extern TkCtag* tkcfirsttag(TkCitem*, TkCtag*); extern TkCtag* tkclasttag(TkCitem*, TkCtag*); extern void tkcvsappend(TkCanvas*, TkCitem*); extern TkCitem* tkcnewitem(Tk*, int, int); extern void tkcvsfreeitem(TkCitem*); extern Point tkcvsrelpos(Tk*); extern Tk* tkcvsinwindow(Tk*, Point*); extern char* tkcvstextdchar(Tk*, TkCitem*, char*); extern char* tkcvstextindex(Tk*, TkCitem*, char*, char **val); extern char* tkcvstextinsert(Tk*, TkCitem*, char*); extern char* tkcvstexticursor(Tk*, TkCitem*, char*); extern void tkmkpen(Image**, TkEnv*, Image*); extern void tkcvstextfocus(Tk*, TkCitem*, int); extern char* tkcvstextselect(Tk*, TkCitem*, char*, int); extern void tkcvstextclr(Tk*); extern Tk* tkcvsevent(Tk*, int, void*); extern Point tkcvsanchor(Point, int, int, int); extern void tkcvsdirty(Tk*); extern void tkfreectag(TkCtag*); extern char* tkparsepts(TkTop*, TkCpoints*, char**, int); extern void tkfreepoint(TkCpoints*); extern void tkxlatepts(Point*, int, int, int); extern void tkpolybound(Point*, int, Rectangle*); extern TkName* tkctaglook(Tk*, TkName*, char*); extern void tkbbmax(Rectangle*, Rectangle*); extern void tkcvssetdirty(Tk*); /* Canvas Item methods - required to populate tkcimethod in canvs.c */ extern char* tkcvslinecreat(Tk*, char *arg, char **val); extern void tkcvslinedraw(Image*, TkCitem*, TkEnv*); extern void tkcvslinefree(TkCitem*); extern char* tkcvslinecoord(TkCitem*, char*, int, int); extern char* tkcvslinecget(TkCitem*, char*, char**); extern char* tkcvslineconf(Tk*, TkCitem*, char*); extern int tkcvslinehit(TkCitem*, Point); extern char* tkcvstextcreat(Tk*, char *arg, char **val); extern void tkcvstextdraw(Image*, TkCitem*, TkEnv*); extern void tkcvstextfree(TkCitem*); extern char* tkcvstextcoord(TkCitem*, char*, int, int); extern char* tkcvstextcget(TkCitem*, char*, char**); extern char* tkcvstextconf(Tk*, TkCitem*, char*); extern char* tkcvsrectcreat(Tk*, char *arg, char **val); extern void tkcvsrectdraw(Image*, TkCitem*, TkEnv*); extern void tkcvsrectfree(TkCitem*); extern char* tkcvsrectcoord(TkCitem*, char*, int, int); extern char* tkcvsrectcget(TkCitem*, char*, char**); extern char* tkcvsrectconf(Tk*, TkCitem*, char*); extern char* tkcvsovalcreat(Tk*, char *arg, char **val); extern void tkcvsovaldraw(Image*, TkCitem*, TkEnv*); extern void tkcvsovalfree(TkCitem*); extern char* tkcvsovalcoord(TkCitem*, char*, int, int); extern char* tkcvsovalcget(TkCitem*, char*, char**); extern char* tkcvsovalconf(Tk*, TkCitem*, char*); extern int tkcvsovalhit(TkCitem*, Point); extern char* tkcvsarccreat(Tk*, char *arg, char **val); extern void tkcvsarcdraw(Image*, TkCitem*, TkEnv*); extern void tkcvsarcfree(TkCitem*); extern char* tkcvsarccoord(TkCitem*, char*, int, int); extern char* tkcvsarccget(TkCitem*, char*, char**); extern char* tkcvsarcconf(Tk*, TkCitem*, char*); extern char* tkcvsbitcreat(Tk*, char *arg, char **val); extern void tkcvsbitdraw(Image*, TkCitem*, TkEnv*); extern void tkcvsbitfree(TkCitem*); extern char* tkcvsbitcoord(TkCitem*, char*, int, int); extern char* tkcvsbitcget(TkCitem*, char*, char**); extern char* tkcvsbitconf(Tk*, TkCitem*, char*); extern char* tkcvswindcreat(Tk*, char *arg, char **val); extern void tkcvswinddraw(Image*, TkCitem*, TkEnv*); extern void tkcvswindfree(TkCitem*); extern char* tkcvswindcoord(TkCitem*, char*, int, int); extern char* tkcvswindcget(TkCitem*, char*, char**); extern char* tkcvswindconf(Tk*, TkCitem*, char*); extern char* tkcvspolycreat(Tk*, char *arg, char **val); extern void tkcvspolydraw(Image*, TkCitem*, TkEnv*); extern void tkcvspolyfree(TkCitem*); extern char* tkcvspolycoord(TkCitem*, char*, int, int); extern char* tkcvspolycget(TkCitem*, char*, char**); extern char* tkcvspolyconf(Tk*, TkCitem*, char*); extern int tkcvspolyhit(TkCitem*, Point); extern char* tkcvsimgcreat(Tk*, char *arg, char **val); extern void tkcvsimgdraw(Image*, TkCitem*, TkEnv*); extern void tkcvsimgfree(TkCitem*); extern char* tkcvsimgcoord(TkCitem*, char*, int, int); extern char* tkcvsimgcget(TkCitem*, char*, char**); extern char* tkcvsimgconf(Tk*, TkCitem*, char*); extern TkCitem* tkcvsfindwin(Tk*); extern void tkcvsforgetsub(Tk*, Tk*);