mrmBot-Matrix/natives/sonic.cc

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#include <Magick++.h>
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#include <napi.h>
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#include <list>
using namespace std;
using namespace Magick;
Napi::Value Sonic(const Napi::CallbackInfo &info) {
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Napi::Env env = info.Env();
try {
Napi::Object obj = info[0].As<Napi::Object>();
string text = obj.Get("text").As<Napi::String>().Utf8Value();
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Blob blob;
Image image;
Image text_image;
text_image.backgroundColor("none");
text_image.fontPointsize(72);
text_image.textGravity(Magick::CenterGravity);
text_image.font("Bitstream Vera Sans");
text_image.read("pango:<span foreground='white'>" + text + "</span>");
text_image.resize(Geometry(474, 332));
text_image.extent(Geometry("1024x538-435-145"), Magick::CenterGravity);
image.read("./assets/images/sonic.jpg");
image.composite(text_image, Geometry("+160+10"), Magick::OverCompositeOp);
image.magick("PNG");
image.write(&blob);
Napi::Object result = Napi::Object::New(env);
result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
blob.length()));
result.Set("type", "png");
return result;
} catch (Napi::Error const &err) {
throw err;
} catch (std::exception const &err) {
throw Napi::Error::New(env, err.what());
} catch (...) {
throw Napi::Error::New(env, "Unknown error");
}
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}