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