mirror of
https://github.com/peterbraden/node-opencv.git
synced 2026-01-25 15:07:35 +00:00
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
#include "HighGUI.h"
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#include "OpenCV.h"
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#include "Matrix.h"
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#ifdef HAVE_OPENCV_HIGHGUI
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Nan::Persistent<FunctionTemplate> NamedWindow::constructor;
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void NamedWindow::Init(Local<Object> target) {
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Nan::HandleScope scope;
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// Constructor
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Local<FunctionTemplate> ctor = Nan::New<FunctionTemplate>(NamedWindow::New);
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constructor.Reset(ctor);
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ctor->InstanceTemplate()->SetInternalFieldCount(1);
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ctor->SetClassName(Nan::New("NamedWindow").ToLocalChecked());
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// Prototype
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Nan::SetPrototypeMethod(ctor, "show", Show);
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Nan::SetPrototypeMethod(ctor, "destroy", Destroy);
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Nan::SetPrototypeMethod(ctor, "blockingWaitKey", BlockingWaitKey);
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Nan::SetPrototypeMethod(ctor, "resizeWindow", ResizeWindow);
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target->Set(Nan::New("NamedWindow").ToLocalChecked(), ctor->GetFunction());
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};
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NAN_METHOD(NamedWindow::New) {
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Nan::HandleScope scope;
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if (info.This()->InternalFieldCount() == 0) {
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JSTHROW_TYPE("Cannot Instantiate without new")
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}
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NamedWindow* win;
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if (info.Length() == 1) {
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win = new NamedWindow(std::string(*Nan::Utf8String(info[0]->ToString())), 0);
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} else { //if (info.Length() == 2){
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win = new NamedWindow(std::string(*Nan::Utf8String(info[0]->ToString())),
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info[1]->IntegerValue());
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}
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win->Wrap(info.Holder());
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info.GetReturnValue().Set(info.Holder());
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}
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NamedWindow::NamedWindow(const std::string& name, int f) {
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winname = std::string(name);
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flags = f;
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cv::namedWindow(winname, flags);
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}
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NAN_METHOD(NamedWindow::Show) {
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SETUP_FUNCTION(NamedWindow)
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Matrix *im = Nan::ObjectWrap::Unwrap<Matrix>(info[0]->ToObject());
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try {
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cv::imshow(self->winname, im->mat);
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} catch (cv::Exception& e) {
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const char* err_msg = e.what();
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Nan::ThrowError(err_msg);
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}
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info.GetReturnValue().Set(info.Holder());
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}
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NAN_METHOD(NamedWindow::Destroy) {
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SETUP_FUNCTION(NamedWindow)
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cv::destroyWindow(self->winname);
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info.GetReturnValue().Set(info.Holder());
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}
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NAN_METHOD(NamedWindow::BlockingWaitKey) {
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int time = 0;
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if (info.Length() > 1) {
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time = info[1]->IntegerValue();
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} else {
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if (info.Length() > 0) {
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time = info[0]->IntegerValue();
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}
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}
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int res = cv::waitKey(time);
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info.GetReturnValue().Set(Nan::New<Number>(res));
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}
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NAN_METHOD(NamedWindow::ResizeWindow) {
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SETUP_FUNCTION(NamedWindow)
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if (info.Length() != 2) {
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throw "expected 2 argurments: width, height";
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}//otherwise
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int width = info[0]->IntegerValue();
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int height = info[1]->IntegerValue();
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cv::resizeWindow(self->winname, width, height);
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}
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#endif
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