mrmBot-Matrix/natives/freeze.cc

56 lines
No EOL
1.8 KiB
C++

#include <napi.h>
#include <list>
#include <Magick++.h>
using namespace std;
using namespace Magick;
class FreezeWorker : public Napi::AsyncWorker {
public:
FreezeWorker(Napi::Function& callback, string in_path, bool loop, int frame, string type, int delay)
: Napi::AsyncWorker(callback), in_path(in_path), loop(loop), frame(frame), type(type), delay(delay) {}
~FreezeWorker() {}
void Execute() {
list <Image> frames;
readImages(&frames, in_path);
if (frame >= 0 && !loop) {
size_t frameSize = frames.size();
int framePos = clamp(frame, 0, (int)frameSize);
frames.resize(framePos + 1);
}
for_each(frames.begin(), frames.end(), animationIterationsImage(loop ? 0 : 1));
for_each(frames.begin(), frames.end(), magickImage(type));
if (delay != 0) for_each(frames.begin(), frames.end(), animationDelayImage(delay));
writeImages(frames.begin(), frames.end(), &blob);
}
void OnOK() {
Callback().Call({Env().Undefined(), Napi::Buffer<char>::Copy(Env(), (char *)blob.data(), blob.length()), Napi::String::From(Env(), type)});
}
private:
string in_path, type;
int frame, delay;
Blob blob;
bool loop;
};
Napi::Value Freeze(const Napi::CallbackInfo &info)
{
Napi::Env env = info.Env();
Napi::Object obj = info[0].As<Napi::Object>();
Napi::Function cb = info[1].As<Napi::Function>();
string path = obj.Get("path").As<Napi::String>().Utf8Value();
bool loop = obj.Has("loop") ? obj.Get("loop").As<Napi::Boolean>().Value() : false;
string type = obj.Get("type").As<Napi::String>().Utf8Value();
int delay = obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
int frame = obj.Has("frame") ? obj.Get("frame").As<Napi::Number>().Int32Value() : -1;
FreezeWorker* freezeWorker = new FreezeWorker(cb, path, loop, frame, type, delay);
freezeWorker->Queue();
return env.Undefined();
}