kicad/thirdparty/rectpack2d/rectpack2d/empty_space_allocators.h

71 lines
1.2 KiB
C++

#pragma once
#include <array>
#include <vector>
#include <type_traits>
#include "rect_structs.h"
namespace rectpack2D {
class default_empty_spaces {
std::vector<space_rect> empty_spaces;
public:
void remove(const int i) {
empty_spaces[i] = empty_spaces.back();
empty_spaces.pop_back();
}
bool add(const space_rect r) {
empty_spaces.emplace_back(r);
return true;
}
auto get_count() const {
return empty_spaces.size();
}
void reset() {
empty_spaces.clear();
}
const auto& get(const int i) {
return empty_spaces[i];
}
};
template <int MAX_SPACES>
class static_empty_spaces {
int count_spaces = 0;
std::array<space_rect, MAX_SPACES> empty_spaces;
public:
void remove(const int i) {
empty_spaces[i] = empty_spaces[count_spaces - 1];
--count_spaces;
}
bool add(const space_rect r) {
if (count_spaces < static_cast<int>(empty_spaces.size())) {
empty_spaces[count_spaces] = r;
++count_spaces;
return true;
}
return false;
}
auto get_count() const {
return count_spaces;
}
void reset() {
count_spaces = 0;
}
const auto& get(const int i) {
return empty_spaces[i];
}
};
}