89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
#include <napi.h>
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#include <iostream>
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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 MemeWorker : public Napi::AsyncWorker {
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public:
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MemeWorker(Napi::Function& callback, string in_path, string text_top, string text_bottom, string type, int delay)
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: Napi::AsyncWorker(callback), in_path(in_path), text_top(text_top), text_bottom(text_bottom), type(type), delay(delay) {}
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~MemeWorker() {}
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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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Image top_text;
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Image bottom_text;
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readImages(&frames, in_path);
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coalesceImages(&coalesced, frames.begin(), frames.end());
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for_each(coalesced.begin(), coalesced.end(), scaleImage(Geometry(600, 600)));
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top_text.size(Geometry(to_string(coalesced.front().columns())));
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top_text.backgroundColor("none");
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top_text.font("Impact");
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top_text.fontPointsize(40);
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top_text.textGravity(Magick::CenterGravity);
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top_text.read("pango:<span foreground='white'>" + text_top + "</span>");
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Image top_text_fill = top_text;
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top_text_fill.channel(Magick::AlphaChannel);
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top_text_fill.morphology(Magick::EdgeOutMorphology, "Octagon");
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top_text_fill.backgroundColor("black");
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top_text_fill.alphaChannel(Magick::ShapeAlphaChannel);
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top_text.composite(top_text_fill, Magick::CenterGravity, Magick::DstOverCompositeOp);
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if (text_bottom != "") {
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bottom_text.size(Geometry(to_string(coalesced.front().columns())));
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bottom_text.backgroundColor("none");
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bottom_text.font("Impact");
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bottom_text.fontPointsize(40);
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bottom_text.textGravity(Magick::CenterGravity);
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bottom_text.read("pango:<span foreground='white'>" + text_bottom + "</span>");
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Image bottom_text_fill = bottom_text;
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bottom_text_fill.channel(Magick::AlphaChannel);
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bottom_text_fill.morphology(Magick::EdgeOutMorphology, "Octagon");
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bottom_text_fill.backgroundColor("black");
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bottom_text_fill.alphaChannel(Magick::ShapeAlphaChannel);
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bottom_text.composite(bottom_text_fill, Magick::CenterGravity, Magick::DstOverCompositeOp);
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}
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for (Image &image : coalesced) {
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image.composite(top_text, Magick::NorthGravity, Magick::OverCompositeOp);
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if (text_bottom != "") image.composite(bottom_text, Magick::SouthGravity, Magick::OverCompositeOp);
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image.magick(type);
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mid.push_back(image);
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}
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if (delay != 0) for_each(mid.begin(), mid.end(), animationDelayImage(delay));
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writeImages(mid.begin(), mid.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, text_top, text_bottom;
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int delay, wordlength, i, n;
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size_t bytes, type_size;
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Blob blob;
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};
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Napi::Value Meme(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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string text_top = info[1].As<Napi::String>().Utf8Value();
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string text_bottom = info[2].As<Napi::String>().Utf8Value();
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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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MemeWorker* blurWorker = new MemeWorker(cb, in_path, text_top, text_bottom, type, delay);
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blurWorker->Queue();
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return env.Undefined();
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} |