rts/src/gui/src/container.c

89 lines
1.8 KiB
C

#include <gui/container.h>
#include <gui.h>
#include <camera.h>
#include <peripheral.h>
static void add_child(struct gui_common *const parent,
struct gui_common *const child)
{
if (!child->cb || !child->cb->get_dim)
return;
struct gui_container *const c = (struct gui_container *)parent;
short w, h;
child->cb->get_dim(child, &w, &h);
switch (c->mode)
{
case GUI_CONTAINER_MODE_H:
if (c->w)
c->w += c->spacing;
child->xoff = c->w;
c->w += w;
if (h > c->h)
c->h = h;
break;
case GUI_CONTAINER_MODE_V:
if (c->h)
c->h += c->spacing;
child->yoff = c->h;
c->h += h;
if (w > c->w)
c->w = w;
break;
}
}
static void get_dim(const struct gui_common *const g,
short *const w, short *const h)
{
struct gui_container *const c = (struct gui_container *)g;
*w = c->w;
*h = c->h;
}
static int update(struct gui_common *const g,
const union peripheral *const p, const struct camera *const cam)
{
struct gui_container *const c = (struct gui_container *)g;
c->w = c->h = 0;
struct gui_common *const child = c->common.child;
if (child->cb->get_dim)
add_child(&c->common, child);
for (struct gui_common *s = child->sibling; s; s = s->sibling)
add_child(&c->common, s);
return 0;
}
void gui_container_init(struct gui_container *const c)
{
static const struct gui_common_cb cb =
{
.add_child = add_child,
.get_dim = get_dim,
.update = update
};
*c = (const struct gui_container)
{
.common =
{
.cb = &cb
}
};
}