85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
#include <napi.h>
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#include <list>
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#include <Magick++.h>
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using namespace std;
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using namespace Magick;
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class MirrorWorker : public Napi::AsyncWorker {
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public:
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MirrorWorker(Napi::Function& callback, string in_path, bool vertical, bool first, string type, int delay)
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: Napi::AsyncWorker(callback), in_path(in_path), vertical(vertical), first(first), type(type), delay(delay) {}
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~MirrorWorker() {}
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void Execute() {
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list<Image> frames;
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list<Image> coalesced;
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list<Image> mid;
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list<Image> result;
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MagickCore::GravityType gravity;
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readImages(&frames, in_path);
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coalesceImages(&coalesced, frames.begin(), frames.end());
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if (vertical && first) {
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gravity = Magick::NorthGravity;
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} else if (!vertical && first) {
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gravity = Magick::WestGravity;
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} else if (vertical && !first) {
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gravity = Magick::SouthGravity;
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} else {
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gravity = Magick::EastGravity;
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}
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for (Image &image : coalesced) {
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list<Image> mirrored;
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Image final;
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image.extent(Geometry(to_string(vertical ? image.baseColumns() : image.baseColumns() / 2) + "x" + to_string(vertical ? image.baseRows() / 2 : image.baseRows())), gravity);
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mirrored.push_back(image);
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Image mirror = image;
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if (vertical) {
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mirror.flip();
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} else {
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mirror.flop();
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}
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if (first) {
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mirrored.push_back(mirror);
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} else {
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mirrored.push_front(mirror);
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}
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appendImages(&final, mirrored.begin(), mirrored.end(), vertical);
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final.magick(type);
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mid.push_back(final);
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}
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optimizeImageLayers(&result, mid.begin(), mid.end());
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if (delay != 0) for_each(result.begin(), result.end(), animationDelayImage(delay));
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writeImages(result.begin(), result.end(), &blob);
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}
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void OnOK() {
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Callback().Call({Env().Undefined(), Napi::Buffer<char>::Copy(Env(), (char *)blob.data(), blob.length())});
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}
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private:
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string in_path, type;
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int delay, wordlength, i, n;
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size_t bytes, type_size;
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bool vertical, first;
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Blob blob;
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};
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Napi::Value Mirror(const Napi::CallbackInfo &info)
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{
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Napi::Env env = info.Env();
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string in_path = info[0].As<Napi::String>().Utf8Value();
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bool vertical = info[1].As<Napi::Boolean>().Value();
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bool first = info[2].As<Napi::Boolean>().Value();
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string type = info[3].As<Napi::String>().Utf8Value();
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int delay = info[4].As<Napi::Number>().Int32Value();
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Napi::Function cb = info[5].As<Napi::Function>();
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MirrorWorker* mirrorWorker = new MirrorWorker(cb, in_path, vertical, first, type, delay);
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mirrorWorker->Queue();
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return env.Undefined();
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} |