ref: eae58edb5a6f912d3fd06c96e01499ba46f730da
dir: /sys/src/cmd/mothra/libpanel/message.c/
#include <u.h> #include <libc.h> #include <draw.h> #include <event.h> #include <panel.h> #include "pldefs.h" typedef struct Message Message; struct Message{ char *text; Point minsize; }; void pl_textmsg(Image *b, Rectangle r, Font *f, char *s){ char *start, *end; /* of line */ Point where; int lwid, c, wid; where=r.min; wid=r.max.x-r.min.x; do{ start=s; lwid=0; end=s; do{ for(;*s!=' ' && *s!='\0';s=pl_nextrune(s)) lwid+=pl_runewidth(f, s); if(lwid>wid) break; end=s; for(;*s==' ';s=pl_nextrune(s)) lwid+=pl_runewidth(f, s); }while(*s!='\0'); if(end==start) /* can't even fit one word on line! */ end=s; c=*end; *end='\0'; string(b, where, display->black, ZP, f, start); *end=c; where.y+=font->height; s=end; while(*s==' ') s=pl_nextrune(s); }while(*s!='\0'); } Point pl_foldsize(Font *f, char *s, int wid){ char *start, *end; /* of line */ Point size; int lwid, ewid; size=Pt(0,0); do{ start=s; lwid=0; end=s; ewid=lwid; do{ for(;*s!=' ' && *s!='\0';s=pl_nextrune(s)) lwid+=pl_runewidth(f, s); if(lwid>wid) break; end=s; ewid=lwid; for(;*s==' ';s=pl_nextrune(s)) lwid+=pl_runewidth(f, s); }while(*s!='\0'); if(end==start){ /* can't even fit one word on line! */ ewid=lwid; end=s; } if(ewid>size.x) size.x=ewid; size.y+=font->height; s=end; while(*s==' ') s=pl_nextrune(s); }while(*s!='\0'); return size; } void pl_drawmessage(Panel *p){ pl_textmsg(p->b, pl_box(p->b, p->r, PASSIVE), font, ((Message *)p->data)->text); } int pl_hitmessage(Panel *g, Mouse *m){ USED(g, m); return 0; } void pl_typemessage(Panel *g, Rune c){ USED(g, c); } Point pl_getsizemessage(Panel *p, Point children){ Message *mp; USED(children); mp=p->data; return pl_boxsize(pl_foldsize(font, mp->text, mp->minsize.x), PASSIVE); } void pl_childspacemessage(Panel *p, Point *ul, Point *size){ USED(p, ul, size); } void plinitmessage(Panel *v, int flags, int wid, char *msg){ Message *mp; mp=v->data; v->flags=flags|LEAF; v->draw=pl_drawmessage; v->hit=pl_hitmessage; v->type=pl_typemessage; v->getsize=pl_getsizemessage; v->childspace=pl_childspacemessage; mp->text=msg; mp->minsize=Pt(wid, font->height); v->kind="message"; } Panel *plmessage(Panel *parent, int flags, int wid, char *msg){ Panel *v; v=pl_newpanel(parent, sizeof(Message)); plinitmessage(v, flags, wid, msg); return v; }