int as_peek(Stack *stack, void *data) {
ArrayStack *s = (ArrayStack*)stack;
if (0 == as_size(stack))
return -1;
void *d = (s->_arrayPtr + ((s->_size - 1) * s->_dataItemSize));
memcpy(data, d, s->_dataItemSize);
return 0;
}
void msh::GraphicsDisplayLayout::clip_to_output(geometry::Rectangle& rect)
{
auto output = get_output_for(rect);
if (output.size.width > geom::Width{0} && output.size.height > geom::Height{0} &&
rect.size.width > geom::Width{0} && rect.size.height > geom::Height{0})
{
auto tl_closed = rect.top_left;
auto br_closed = rect.bottom_right() - geom::Displacement{1,1};
geom::Rectangles rectangles;
rectangles.add(output);
rectangles.confine(tl_closed);
rectangles.confine(br_closed);
rect.top_left = tl_closed;
rect.size = as_size(br_closed - tl_closed + geom::Displacement{1, 1});
}
else
{
rect.size = geom::Size{0,0};
}
}