92 lines
No EOL
3.2 KiB
C++
92 lines
No EOL
3.2 KiB
C++
#include <Magick++.h>
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#include <napi.h>
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#include <list>
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using namespace std;
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using namespace Magick;
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Napi::Value Meme(const Napi::CallbackInfo &info) {
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Napi::Env env = info.Env();
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try {
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Napi::Object obj = info[0].As<Napi::Object>();
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string path = obj.Get("path").As<Napi::String>().Utf8Value();
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string top = obj.Get("top").As<Napi::String>().Utf8Value();
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string bottom = obj.Get("bottom").As<Napi::String>().Utf8Value();
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string type = obj.Get("type").As<Napi::String>().Utf8Value();
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int delay =
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obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
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Blob blob;
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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, path);
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coalesceImages(&coalesced, frames.begin(), frames.end());
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for_each(coalesced.begin(), coalesced.end(),
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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'>" + 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,
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Magick::DstOverCompositeOp);
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if (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'>" + 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,
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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 (bottom != "")
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image.composite(bottom_text, Magick::SouthGravity,
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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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optimizeTransparency(mid.begin(), mid.end());
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if (type == "gif") {
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for (Image &image : mid) {
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image.quantizeDither(false);
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image.quantize();
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if (delay != 0) image.animationDelay(delay);
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}
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}
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writeImages(mid.begin(), mid.end(), &blob);
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Napi::Object result = Napi::Object::New(env);
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
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blob.length()));
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result.Set("type", type);
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return result;
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} catch (std::exception const &err) {
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throw Napi::Error::New(env, err.what());
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}
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} |