#include #include #include using namespace std; using namespace Magick; class ReverseWorker : public Napi::AsyncWorker { public: ReverseWorker(Napi::Function& callback, string in_path, bool soos, int delay) : Napi::AsyncWorker(callback), in_path(in_path), soos(soos), delay(delay) {} ~ReverseWorker() {} void Execute() { list frames; list coalesced; readImages(&frames, in_path); coalesceImages(&coalesced, frames.begin(), frames.end()); if (soos) { list copy = coalesced; copy.reverse(); coalesced.insert(coalesced.end(), copy.begin(), copy.end()); } else { coalesced.reverse(); } for_each(coalesced.begin(), coalesced.end(), magickImage("GIF")); optimizeTransparency(coalesced.begin(), coalesced.end()); if (type == "gif") { for (Image &image : coalesced) { image.quantizeDither(false); image.quantize(); if (delay != 0) image.animationDelay(delay); } } writeImages(coalesced.begin(), coalesced.end(), &blob); } void OnOK() { Callback().Call({Env().Undefined(), Napi::Buffer::Copy(Env(), (char *)blob.data(), blob.length())}); } private: string in_path, type; int delay, amount; Blob blob; bool soos; }; Napi::Value Reverse(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 soos = obj.Has("soos") ? obj.Get("soos").As().Value() : false; int delay = obj.Has("delay") ? obj.Get("delay").As().Int32Value() : 0; ReverseWorker* explodeWorker = new ReverseWorker(cb, path, soos, delay); explodeWorker->Queue(); return env.Undefined(); }