fix naive packer
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@ -8,8 +8,7 @@ The subject is available here: [Test Algo](./test_algo.pdf)
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- [ ] skyline
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- [X] add raygui
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- [X] resize box
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- [ ] add box in gui by pressing down
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- [ ] delete box in gui by clicking
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- [X] delete box in gui by clicking
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- [ ] wrap stb_rect_pack?
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- [X] change bbox api to origin + size
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- [ ] dummy A2
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@ -119,8 +119,10 @@ int main(int argc, const char* argv[]) {
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const Vector2 b_size = {150, 30};
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Vector2 mouse_pos = {0};
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Vector2 mouse_delta = {0};
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int b_moving_idx = -1;
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int b_resize_idx = -1;
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constexpr int idx_unset = -1;
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int b_moving_idx = idx_unset;
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int b_resize_idx = idx_unset;
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int b_delete_idx = idx_unset;
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while (!WindowShouldClose()) {
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//
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@ -131,8 +133,10 @@ int main(int argc, const char* argv[]) {
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for (int b = 0, size = bboxes.size(); b < size; ++b) {
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const auto& box = bboxes[b];
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const Rectangle rect = rect_from_bbox(box, in_offset);
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if (CheckCollisionPointRec(mouse_pos, rect) and
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IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) {
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if (not CheckCollisionPointRec(mouse_pos, rect)) {
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continue;
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}
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if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) {
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const Rectangle handle_area = {
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rect.x + rect.width - resize_handle,
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rect.y + rect.height - resize_handle, resize_handle,
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@ -143,23 +147,30 @@ int main(int argc, const char* argv[]) {
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b_moving_idx = b;
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}
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}
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if (IsMouseButtonPressed(MOUSE_BUTTON_RIGHT)) {
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b_delete_idx = b;
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}
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}
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if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT)) {
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b_moving_idx = -1;
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b_resize_idx = -1;
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b_moving_idx = idx_unset;
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b_resize_idx = idx_unset;
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}
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if (b_moving_idx != -1) {
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if (b_moving_idx != idx_unset) {
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auto& box = bboxes[b_moving_idx];
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box.x += mouse_delta.x;
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box.y += mouse_delta.y;
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}
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if (b_resize_idx != -1) {
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if (b_resize_idx != idx_unset) {
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auto& box = bboxes[b_resize_idx];
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box.width = std::max(static_cast<int>(box.width + mouse_delta.x),
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resize_handle);
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box.height = std::max(static_cast<int>(box.height + mouse_delta.y),
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resize_handle);
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}
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if (b_delete_idx != idx_unset) {
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bboxes.erase(bboxes.begin() + b_delete_idx);
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b_delete_idx = idx_unset;
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}
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//
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// Draw
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22
src/pack.cpp
22
src/pack.cpp
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@ -57,18 +57,17 @@ std::optional<Frame> pack(const Frame& in_frame,
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int max_area = 0;
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for (const auto& box : sorted_bboxes) {
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int area = box.area();
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std::cout << "bounding box area: " << area << "\n";
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max_area += area;
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}
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std::cout << "max area: " << max_area << "\n";
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std::cout << "[pack] max area: " << max_area << "\n";
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int optimal_size = int(ceil(std::sqrt(max_area)));
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std::cout << "optimal image dimention: " << optimal_size << " x "
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std::cout << "[pack] optimal image dimention: " << optimal_size << " x "
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<< optimal_size << "\n";
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// cf. subject: D < min(M, N )
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const int max_size = std::min(in_frame.width, in_frame.height) - 1;
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std::cout << "maximum image dimention: " << max_size << " x " << max_size
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<< "\n";
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std::cout << "[pack] maximum image dimention: " << max_size << " x "
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<< max_size << "\n";
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// We will try to fit all the rectangles in a given square of size S.
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// optimal_size <= S <= max_size (smallest dimension of input frame)
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@ -76,6 +75,8 @@ std::optional<Frame> pack(const Frame& in_frame,
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const int nb_candidates = 5;
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const int size_increment = (max_size - optimal_size) / nb_candidates;
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for (int size = optimal_size; size <= max_size; size += size_increment) {
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std::cout << "[pack] trying to fit in " << size << " x " << size
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<< "\n";
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int x = 0;
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int y = 0;
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int next_row = 0;
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@ -84,16 +85,23 @@ std::optional<Frame> pack(const Frame& in_frame,
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for (int box_i = 0, box_max = bboxes.size();
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room_left and box_i < box_max; ++box_i) {
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auto& box = sorted_bboxes[box_i];
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std::cout << "[pack] box " << box.width << " x " << box.height
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<< "\n";
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// If we don't have room in either dimension, we won't be able to
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// pack within this size candidate.
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if (x + box.width >= size or y + box.height >= size) {
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if (x + box.width >= size and next_row + box.height >= size) {
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std::cout << "[pack] -> no room left (last row height = "
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<< size - y << ")\n";
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room_left = false;
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continue;
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}
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// If we cannot fit the rect on the right, we fit it below.
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if (x + box.width >= size) {
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std::cout
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<< "[pack] -> cannot fit in current row (width left = "
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<< size - x << ")\n";
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x = 0;
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y = next_row;
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}
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@ -103,11 +111,13 @@ std::optional<Frame> pack(const Frame& in_frame,
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// know the next ones won't cross this line.
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if (x == 0) {
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next_row = box.height;
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std::cout << "[pack] -> create new row at line " << y << "\n";
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}
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box.x = x;
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box.y = y;
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x += box.width;
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std::cout << "[pack] -> fit in (" << x << ", " << y << ")\n";
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}
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if (room_left) {
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