#include "opcv/CvGraphicsShowModel.h"


CvGraphicsShowModel::CvGraphicsShowModel()
{
	//mCvImageView = new CvImageViewWidget();
	//mCvImageView->installEventFilter(this);
	//mCvImageView->resize(600, 450);
	//moveToThread(this);

	mCvGraphicsView = new CvGraphicsViewWidget();
	mCvGraphicsView->setObjectName(QStringLiteral("graphicsView"));
	mCvGraphicsView->setStyleSheet(
		"QGraphicsView#graphicsView{ "
		"background-color:transparent; "
		"border: 1px solid #F0F2F4; "
		"border-radius: 4px; }");

	widget = new QWidget();
	widget->resize(600, 450);
	widget->setObjectName(QStringLiteral("widget"));
	widget->setStyleSheet("QWidget#widget { background-color:transparent; }");

	QGridLayout* gridLayout = new QGridLayout(widget);
	QVBoxLayout* verticalLayout = new QVBoxLayout();
	QHBoxLayout* horizontalLayout = new QHBoxLayout();
	horizontalLayout->setDirection(QHBoxLayout::LeftToRight);

	QLabel* label = new QLabel();
	label->setObjectName(QStringLiteral("label"));
	label->setText(QStringLiteral("图片放缩:"));
	label->setStyleSheet("QLabel#label { color:#FFFFFF; }");
	QSizePolicy sizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	sizePolicy.setHorizontalStretch(0);
	sizePolicy.setVerticalStretch(0);
	sizePolicy.setHeightForWidth(label->sizePolicy().hasHeightForWidth());
	label->setSizePolicy(sizePolicy);
	label->setMaximumSize(QSize(60, 16777215));

	horizontalSlider = new QSlider();
	horizontalSlider->setObjectName(QString::fromUtf8("horizontalSlider"));
	horizontalSlider->setMinimum(-14);
	horizontalSlider->setMaximum(14);
	horizontalSlider->setPageStep(2);
	horizontalSlider->setOrientation(Qt::Horizontal);
	horizontalSlider->setTickPosition(QSlider::TicksBelow);
	QObject::connect(horizontalSlider, &QSlider::valueChanged, this, &CvGraphicsShowModel::onQSliderValueChanged);

	QSpacerItem* horizontalSpacer = new QSpacerItem(15, 20, QSizePolicy::Fixed, QSizePolicy::Minimum);
	horizontalLayout->addItem(horizontalSpacer);

	horizontalLayout->addWidget(label);
	horizontalLayout->addWidget(horizontalSlider);

	horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
	horizontalLayout->addItem(horizontalSpacer);

	verticalLayout->addLayout(horizontalLayout);
	verticalLayout->addWidget(mCvGraphicsView);

	gridLayout->addLayout(verticalLayout, 0, 0, 1, 1);

	mCvImageData = std::make_shared<CvImageData>();
}

void CvGraphicsShowModel::onQSliderValueChanged(int val)
{
	qDebug() << "onQSliderValueChanged:" << val;
	qreal scale = 1.0;
	if (val > 0)
	{
		scale = qPow(1.2, val);
		qreal temp = scale;
		scale = scale / mScaledNum;
		mScaledNum = temp;//更新保存的缩放系数
	}
	else if (val < 0)
	{
		scale = qPow(1.2, val);
		qreal temp = scale;
		scale = scale / mScaledNum;
		mScaledNum = temp;//更新保存的缩放系数
	}
	else if (val == 0)
	{
		qreal temp = scale;
		scale = scale / mScaledNum;
		mScaledNum = temp;//更新保存的缩放系数
	}
	mCvGraphicsView->scale(scale, scale);
}

void CvGraphicsShowModel::inputConnectionDeleted(QtNodes::Connection const&)
{
	mCvGraphicsView->setScene(new QGraphicsScene());

	mCvImageData = std::make_shared<CvImageData>();

	PortIndex const outPortIndex = 0;
	modelValidationState = NodeValidationState::Warning;
	modelValidationError = QStringLiteral("图片输入未连接!");
	Q_EMIT dataUpdated(outPortIndex);
}

unsigned int CvGraphicsShowModel::nPorts(PortType portType) const
{
	unsigned int result = 1;

	switch (portType)
	{
	case PortType::In:
		result = 1;
		break;

	case PortType::Out:
		result = 1;

	default:
		break;
	}

	return result;
}

NodeDataType CvGraphicsShowModel::dataType(PortType portType, PortIndex portIndex) const
{
	switch (portIndex)
	{
	case 0:
		return CvImageData().type();
		break;
	case 1:
		return CvImageData().type();
		break;
	}
	return CvImageData().type();
}

bool CvGraphicsShowModel::RunTask()
{
	PortIndex const outPortIndex = 0;
	try
	{
		//qDebug() << "11show";
		//QThread::sleep(3);
		//QThread* thread = new QThread();
		//qDebug() << "CvGraphicsShowModel::RunTask thread:" << thread->currentThreadId();

		mCvGraphicsView->showImage(*mCvImageData->CvImage());
		mCvGraphicsView->scale(0.85, 0.85);
		modelValidationState = NodeValidationState::Valid;
		modelValidationError = QString();
	}
	catch (...)
	{
		modelValidationState = NodeValidationState::Warning;
		modelValidationError = QStringLiteral("缺失或运行失败!");
	}

	Q_EMIT dataUpdated(outPortIndex);

	return true;
}

void CvGraphicsShowModel::setInData(std::shared_ptr<NodeData>data, int)
{
	if (data == nullptr)
		return;
	if (data->type() == mCvImageData->type())
	{
		auto dataPtr = std::dynamic_pointer_cast<CvImageData>(data);
		if (dataPtr->CvImage()->empty())
			return;
		mCvImageData->setCvImage(*dataPtr->CvImage());
	}
	RunTask();
}

bool CvGraphicsShowModel::eventFilter(QObject* object, QEvent* event)
{
	if (event->type() == QEvent::Wheel)
	{

	}
	//if (object == mCvGraphicsView->viewport())
	//{
	//	qDebug() << event->type();
	//	if (event->type() == QEvent::Wheel || event->type() == QEvent::GraphicsSceneWheel)
	//	{
	//		QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
	//		qreal qrTmp = 1.0;
	//		if (mScaledFactor < 0.01 || mScaledFactor > 2000)
	//			return false;
	//		if (wheelEvent->delta() > 0)
	//		{
	//			qrTmp = 1.2;
	//			mCvGraphicsView->scale(qrTmp, qrTmp);
	//		}
	//		else
	//		{
	//			qrTmp = 1.0 / 1.2;
	//			mCvGraphicsView->scale(qrTmp, qrTmp);
	//		}
	//		mScaledFactor = mScaledFactor * qrTmp;  //保存放大倍数
	//		qDebug() << "GraphicsSceneWheel";
	//		return true;
	//	}
	//}
	return false;
}

std::shared_ptr<NodeData> CvGraphicsShowModel::outData(PortIndex index)
{
	switch (index)
	{
	case 0:
		return std::dynamic_pointer_cast<CvImageData>(mCvImageData);
		break;
	}
	return std::dynamic_pointer_cast<CvImageData>(mCvImageData);
}