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#include "HighGUI.h"
#include "OpenCV.h"
#include "Matrix.h"
#ifdef HAVE_OPENCV_HIGHGUI
Nan::Persistent<FunctionTemplate> NamedWindow::constructor;
void NamedWindow::Init(Local<Object> target) {
Nan::HandleScope scope;
// Constructor
Local<FunctionTemplate> ctor = Nan::New<FunctionTemplate>(NamedWindow::New);
constructor.Reset(ctor);
ctor->InstanceTemplate()->SetInternalFieldCount(1);
ctor->SetClassName(Nan::New("NamedWindow").ToLocalChecked());
// Prototype
Nan::SetPrototypeMethod(ctor, "show", Show);
Nan::SetPrototypeMethod(ctor, "destroy", Destroy);
Nan::SetPrototypeMethod(ctor, "blockingWaitKey", BlockingWaitKey);
Nan::SetPrototypeMethod(ctor, "resizeWindow", ResizeWindow);
target->Set(Nan::New("NamedWindow").ToLocalChecked(), ctor->GetFunction());
};
NAN_METHOD(NamedWindow::New) {
Nan::HandleScope scope;
if (info.This()->InternalFieldCount() == 0) {
JSTHROW_TYPE("Cannot Instantiate without new")
}
NamedWindow* win;
if (info.Length() == 1) {
win = new NamedWindow(std::string(*Nan::Utf8String(info[0]->ToString())), 0);
} else { //if (info.Length() == 2){
win = new NamedWindow(std::string(*Nan::Utf8String(info[0]->ToString())),
info[1]->IntegerValue());
}
win->Wrap(info.Holder());
info.GetReturnValue().Set(info.Holder());
}
NamedWindow::NamedWindow(const std::string& name, int f) {
winname = std::string(name);
flags = f;
cv::namedWindow(winname, flags);
}
NAN_METHOD(NamedWindow::Show) {
SETUP_FUNCTION(NamedWindow)
Matrix *im = Nan::ObjectWrap::Unwrap<Matrix>(info[0]->ToObject());
try {
cv::imshow(self->winname, im->mat);
} catch (cv::Exception& e) {
const char* err_msg = e.what();
Nan::ThrowError(err_msg);
}
info.GetReturnValue().Set(info.Holder());
}
NAN_METHOD(NamedWindow::Destroy) {
SETUP_FUNCTION(NamedWindow)
cv::destroyWindow(self->winname);
info.GetReturnValue().Set(info.Holder());
}
NAN_METHOD(NamedWindow::BlockingWaitKey) {
int time = 0;
if (info.Length() > 1) {
time = info[1]->IntegerValue();
} else {
if (info.Length() > 0) {
time = info[0]->IntegerValue();
}
}
int res = cv::waitKey(time);
info.GetReturnValue().Set(Nan::New<Number>(res));
}
NAN_METHOD(NamedWindow::ResizeWindow) {
SETUP_FUNCTION(NamedWindow)
if (info.Length() != 2) {
throw "expected 2 argurments: width, height";
}//otherwise
int width = info[0]->IntegerValue();
int height = info[1]->IntegerValue();
cv::resizeWindow(self->winname, width, height);
}
#endif
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