52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
#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 Canvas Canvas;
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struct Canvas{
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void (*draw)(Panel *);
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void (*hit)(Panel *, Mouse *);
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};
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void pl_drawcanvas(Panel *p){
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Canvas *c;
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c=p->data;
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if(c->draw) c->draw(p);
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}
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int pl_hitcanvas(Panel *p, Mouse *m){
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Canvas *c;
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c=p->data;
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if(c->hit) c->hit(p, m);
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return 0;
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}
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void pl_typecanvas(Panel *p, Rune c){
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USED(p, c);
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}
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Point pl_getsizecanvas(Panel *p, Point children){
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USED(p, children);
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return Pt(0,0);
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}
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void pl_childspacecanvas(Panel *p, Point *ul, Point *size){
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USED(p, ul, size);
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}
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void plinitcanvas(Panel *v, int flags, void (*draw)(Panel *), void (*hit)(Panel *, Mouse *)){
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Canvas *c;
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v->flags=flags|LEAF;
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v->draw=pl_drawcanvas;
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v->hit=pl_hitcanvas;
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v->type=pl_typecanvas;
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v->getsize=pl_getsizecanvas;
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v->childspace=pl_childspacecanvas;
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v->kind="canvas";
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c=v->data;
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c->draw=draw;
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c->hit=hit;
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}
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Panel *plcanvas(Panel *parent, int flags, void (*draw)(Panel *), void (*hit)(Panel *, Mouse *)){
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Panel *p;
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p=pl_newpanel(parent, sizeof(Canvas));
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plinitcanvas(p, flags, draw, hit);
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return p;
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}
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