xfnw
856abd2f7d
git-subtree-dir: sys/src/cmd/gopher git-subtree-split: 3680728b631ed65201b397f4ae3e5d1b03be42f9
124 lines
2.4 KiB
C
124 lines
2.4 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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void *pl_emalloc(int n){
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void *v;
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v=mallocz(n, 1);
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if(v==0){
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fprint(2, "Can't malloc!\n");
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exits("no mem");
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}
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setmalloctag(v, getcallerpc(&n));
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return v;
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}
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void *pl_erealloc(void *v, int n)
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{
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v=realloc(v, n);
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if(v==0){
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fprint(2, "Can't realloc!\n");
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exits("no mem");
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}
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setrealloctag(v, getcallerpc(&v));
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return v;
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}
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void pl_unexpected(Panel *g, char *rou){
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fprint(2, "%s called unexpectedly (%s %#p)\n", rou, g->kind, g);
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abort();
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}
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void pl_drawerror(Panel *g){
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pl_unexpected(g, "draw");
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}
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int pl_hiterror(Panel *g, Mouse *m){
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USED(m);
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pl_unexpected(g, "hit");
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return 0;
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}
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void pl_typeerror(Panel *g, Rune c){
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USED(c);
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pl_unexpected(g, "type");
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}
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Point pl_getsizeerror(Panel *g, Point childsize){
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pl_unexpected(g, "getsize");
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return childsize;
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}
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void pl_childspaceerror(Panel *g, Point *ul, Point *size){
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USED(ul, size);
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pl_unexpected(g, "childspace");
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}
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void pl_scrollerror(Panel *g, int dir, int button, int num, int den){
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USED(dir, button, num, den);
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pl_unexpected(g, "scroll");
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}
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void pl_setscrollbarerror(Panel *g, int top, int bot, int den){
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USED(top, bot, den);
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pl_unexpected(g, "setscrollbar");
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}
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int pl_prinormal(Panel *, Point){
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return PRI_NORMAL;
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}
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Panel *pl_newpanel(Panel *parent, int ndata){
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Panel *v;
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if(parent && parent->flags&LEAF){
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fprint(2, "newpanel: can't create child of %s %#p\n", parent->kind, parent);
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exits("bad newpanel");
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}
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v=pl_emalloc(sizeof(Panel));
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v->r=Rect(0,0,0,0);
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v->flags=0;
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v->ipad=Pt(0,0);
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v->pad=Pt(0,0);
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v->size=Pt(0,0);
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v->sizereq=Pt(0,0);
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v->lastmouse=0;
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v->next=0;
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v->child=0;
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v->echild=0;
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v->b=0;
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v->pri=pl_prinormal;
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v->scrollee=0;
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v->xscroller=0;
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v->yscroller=0;
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v->parent=parent;
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v->scr.pos=Pt(0,0);
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v->scr.size=Pt(0,0);
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if(parent){
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if(parent->child==0)
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parent->child=v;
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else
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parent->echild->next=v;
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parent->echild=v;
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}
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v->draw=pl_drawerror;
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v->hit=pl_hiterror;
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v->type=pl_typeerror;
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v->getsize=pl_getsizeerror;
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v->childspace=pl_childspaceerror;
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v->scroll=pl_scrollerror;
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v->setscrollbar=pl_setscrollbarerror;
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v->free=0;
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v->snarf=0;
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v->paste=0;
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if(ndata)
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v->data=pl_emalloc(ndata);
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else
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v->data=0;
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return v;
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}
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void plfree(Panel *p){
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Panel *cp, *ncp;
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if(p==0)
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return;
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if(p==plkbfocus)
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plkbfocus=0;
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for(cp=p->child;cp;cp=ncp){
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ncp=cp->next;
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plfree(cp);
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}
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if(p->free) p->free(p);
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if(p->data) free(p->data);
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free(p);
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}
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