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#include <string.h>
#include <SDL.h>
#include "osc_graphics.h"
#include "layer.h"
#define FOREACH_LAYER(VAR) \
for (Layer *VAR = head; VAR; VAR = VAR->next)
void
LayerList::insert(int pos, Layer *layer)
{
Layer *cur, *prev = NULL;
lock();
for (cur = head; cur && pos; prev = cur, cur = cur->next, pos--);
layer->next = cur;
if (prev)
prev->next = layer;
else
head = layer;
unlock();
}
bool
LayerList::delete_by_name(const char *name)
{
Layer *prev = NULL;
lock();
FOREACH_LAYER(cur) {
if (!strcmp(cur->name, name)) {
if (prev)
prev->next = cur->next;
else
head = cur->next;
delete cur;
unlock();
return false;
}
prev = cur;
}
unlock();
return true;
}
void
LayerList::render(SDL_Surface *target)
{
SDL_FillRect(target, NULL, SDL_MapRGB(target->format, 0, 0, 0));
lock();
FOREACH_LAYER(cur) {
cur->lock();
cur->frame(target);
cur->unlock();
}
unlock();
}
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