shithub: libnate

ref: c9e889a6d73bcfcd63a93a8f74732411304ef257
dir: /n_window.c/

#include <u.h>
#include <libc.h>
#include <draw.h>
#include <event.h>
#include "nate.h"
#include "nate_construct.h"
#include "n_window.h"

#define N_TYPE NWindow_Type
char* NWindow_Type = "NWindow";

static Rectangle
wcalcrect(Nelem* nelem, Image* screen, Rectangle r)
{
	Nelem *f;
	NWindow *w = (NWindow*)nelem;
	GUARD(w);
	f = lgetfirst(&w->children);
	if (f)
		ncallcalcrect(f, screen, screen->r);
	nelem->slot.r = r;
	return screen->r;
}

static void
wdraw(Nelem* nelem, Image* img)
{
	Nelem *f;
	NWindow *w = (NWindow*)nelem;
	GUARD(w);
	f = lgetfirst(&w->children);
	if (f)
		ncalldraw(f, img);
}

/* could be removed completely, but leave here as an example */
static void
wfree(Nelem* nelem)
{
	nd_free(nelem);
}

static Nelemfunctions Nwindowfunctions = {
	.calcrect = wcalcrect,
	.draw = wdraw,
	.checkhit = nd_checkhit,
	.free = wfree,
};

#define NTYPE NWindow
#define NACCS NWindowAccessors

DEF_SLOTFUNC(wslot);

static NWindowAccessors*
makeroot(void)
{
	NWindow* w = (NWindow*)nc_get();
	GUARD(w);
	nregroot(w);
	return (NACCS*)w->accs;
}

static NWindowAccessors accs = {
	.Slot = wslot,
	.MakeRoot = makeroot,
};

NWindowAccessors*
New_Window(char *name)
{
	NWindow *e = MakeNelem(NWindow, NWindow_Type, &Nwindowfunctions, &accs, name, 1);
	
	nc_push(e);
	return &accs;
}