#include #include #include using namespace std; using namespace Magick; class MirrorWorker : public Napi::AsyncWorker { public: MirrorWorker(Napi::Function& callback, string in_path, bool vertical, bool first, string type, int delay) : Napi::AsyncWorker(callback), in_path(in_path), vertical(vertical), first(first), type(type), delay(delay) {} ~MirrorWorker() {} void Execute() { list frames; list coalesced; list mid; list result; MagickCore::GravityType gravity; readImages(&frames, in_path); coalesceImages(&coalesced, frames.begin(), frames.end()); if (vertical && first) { gravity = Magick::NorthGravity; } else if (!vertical && first) { gravity = Magick::WestGravity; } else if (vertical && !first) { gravity = Magick::SouthGravity; } else { gravity = Magick::EastGravity; } for (Image &image : coalesced) { list mirrored; Image final; image.extent(Geometry(to_string(vertical ? image.baseColumns() : image.baseColumns() / 2) + "x" + to_string(vertical ? image.baseRows() / 2 : image.baseRows())), gravity); mirrored.push_back(image); Image mirror = image; if (vertical) { mirror.flip(); } else { mirror.flop(); } if (first) { mirrored.push_back(mirror); } else { mirrored.push_front(mirror); } appendImages(&final, mirrored.begin(), mirrored.end(), vertical); final.repage(); final.magick(type); final.animationDelay(delay == 0 ? image.animationDelay() : delay); mid.push_back(final); } optimizeImageLayers(&result, mid.begin(), mid.end()); writeImages(result.begin(), result.end(), &blob); } void OnOK() { Callback().Call({Env().Undefined(), Napi::Buffer::Copy(Env(), (char *)blob.data(), blob.length())}); } private: string in_path, type; int delay; bool vertical, first; Blob blob; }; Napi::Value Mirror(const Napi::CallbackInfo &info) { Napi::Env env = info.Env(); Napi::Object obj = info[0].As(); Napi::Function cb = info[1].As(); string path = obj.Get("path").As().Utf8Value(); bool vertical = obj.Has("vertical") ? obj.Get("vertical").As().Value() : false; bool first = obj.Has("first") ? obj.Get("first").As().Value() : false; string type = obj.Get("type").As().Utf8Value(); int delay = obj.Has("delay") ? obj.Get("delay").As().Int32Value() : 0; MirrorWorker* mirrorWorker = new MirrorWorker(cb, path, vertical, first, type, delay); mirrorWorker->Queue(); return env.Undefined(); }