#include "WindowAppBlockPort.h"
#include "WindowAppItemInterface.h"
#include "Pou.h"
#include "DialogPortValue.h"


WindowAppBlockPort::WindowAppBlockPort(TOOL* pNewPort, POU* Pou, bool bShowOnly, QGraphicsObject* parent)
	: WindowAppBlockBase(pNewPort, Pou, bShowOnly, parent)
{
	setFlag(QGraphicsItem::ItemIsMovable);
	setFlag(QGraphicsItem::ItemIsSelectable);
	setFlag(QGraphicsItem::ItemSendsGeometryChanges);

	updateRect();

	// 初始化菜单
	createContextMenu();
}


/// <summary>
/// 根据用户的输入实时更新矩形区域的尺寸
/// </summary>
void WindowAppBlockPort::updateRect()
{
	// 计算高度
	int blockHeight = PBD_BASIC_HEIGHT;

	// 计算宽度
	int blockWidth = PBD_BASIC_WIDTH;

	// 2021-3-28增加，根据工具名字字符的宽度计算实际需要的宽度
	QRect textRect = QFontMetrics(FONT_INF).boundingRect(m_strInfTitle);
	if (textRect.width() > PBD_BASIC_WIDTH - PBD_TEXT_GAP_WIDTH)
	{
		blockWidth = textRect.width() + PBD_TEXT_GAP_WIDTH;
	}

	// 主体矩形区域
	blockRect.setRect(
		-blockWidth / 2,
		-blockHeight,
		blockWidth,
		blockHeight
	);

	// 总体矩形边界（未计算Interface的范围）
	blockBoundingRect.setRect(
		blockRect.left(),
		blockRect.top() - TBD_INDEX_HEIGHT / 2,
		blockRect.width() + TBD_SHADOW_COUNT * PEN_LINE_WIDTH,
		blockRect.height() + TBD_INDEX_HEIGHT / 2 + TBD_SHADOW_COUNT * PEN_LINE_WIDTH
	);

}


/// <summary>
/// 绘制功能块
/// </summary>
/// <param name="painter"></param>
/// <param name="option"></param>
/// <param name="widget"></param>
void WindowAppBlockPort::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
	painter->setRenderHint(QPainter::Antialiasing, true);

	WindowAppBlockBase::paint(painter, option, widget);

	// bSel = isSelected();

	Q_UNUSED(widget);


	painter->save();

	//// 每次绘制之前都更新一下矩形区域
	//UpdateRect();

	// 绘制外框
	DrawBlock(painter);

	// 绘制阴影
	//DrawBlockShadow(painter);

	//// 绘制序号
	//DrawIndex(painter);

	////// 绘制接口
	////DrawInterface(painter);

	painter->restore();
}



/// <summary>
/// 绘制功能块
/// </summary>
/// <param name="painter"></param>
void WindowAppBlockPort::DrawBlock(QPainter* painter)
{
	WindowAppBlockBase::DrawBlock(painter);

	if (m_toolInfo->execParams.nRetValue == VPEnum::RETURN_VALUE::Error )
	{
		painter->setBrush(QColor(255,0,0) );
		// 绘制主体
		painter->drawRect(blockRect);
	}
}

/// <summary>
/// 添加接口
/// </summary>
void WindowAppBlockPort::addItemInterfaces()
{
	// 为本Block添加新的ItemInterface
	//for (TOOL_INTERFACE* pInf : qAsConst(toolInfo->Interfaces))
	//{
		WindowAppItemInterface* pNewItemInf = new WindowAppItemInterface(
			m_toolInfo->Interfaces[0], 
			m_pPou,
			this->m_toolInfo,
			m_bShowOnly, 
			this
		);

		if (!m_bShowOnly)
		{
			// Pou中保存此接口信息
			m_pPou->registerInterface(pNewItemInf, m_toolInfo->Interfaces[0]);
		}

		// 保存接口Item信息
		m_itemInterfaces.append(pNewItemInf);

		// 界面中添加此Interface(设置为从属关系之后，都不需要手工添加此Item了，真是方便啊)
		// scene()->addItem(pNewItemInf);
	//}

	// 更新Interface的位置
		WindowAppBlockBase::updateInterfacesPostion();

}


/// <summary>
/// 初始化功能块的右键菜单
/// </summary>
void WindowAppBlockPort::createContextMenu()
{
	WindowAppBlockBase::createContextMenu();

	//connect(executeAction, &QAction::triggered, this, &WindowAppBlockPort::onMenuExecute);

	//connect(executeAllAction, &QAction::triggered, this, &WindowAppBlockPort::onMenuExecuteAll);

	connect(deleteAction, &QAction::triggered, this, &WindowAppBlockPort::onMenuDelete);

	// connect(propertyAction, &QAction::triggered, this, &WindowAppBlockPort::onMenuProperty);

	contextMenu = new QMenu();

	//contextMenu->addAction(executeAction);
	//contextMenu->addAction(executeAllAction);
	//contextMenu->addSeparator();
	contextMenu->addAction(deleteAction);

	// Port功能块暂时不需要属性框
	//contextMenu->addSeparator();
	//contextMenu->addAction(propertyAction);
}


/// <summary>
/// 菜单 - Delete
/// </summary>
void WindowAppBlockPort::onMenuDelete()
{
	//// 检查是否可以被删除
	//if (!WindowAppBlockBase::couldBeDeleted())
	//{
	//	return;
	//}

	// 2021-6-6 如果有绑定的接口变量，则接口变量的引用计数要 - 1
	if (this->m_toolInfo->isBinded())
	{
		this->m_toolInfo->bindedInterface()->nRefCount--;
	}

	// 2022-10-4，调用基类函数进行删除
	WindowAppBlockBase::onDeleteItem();


	//// 逻辑数据删除
	//m_pPou->ToolDelete(this);

	//// 从界面中移除此功能块
	//scene()->removeItem(this);
}


/// <summary>
/// 鼠标双击时弹出变量选择对话框
/// </summary>
/// <param name="event"></param>
void WindowAppBlockPort::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
{
	if (event->button() != Qt::LeftButton || m_bShowOnly)
	{
		return;
	}

	// 显示变量选择对话框
	DialogPortValue dlgPortValue(m_toolInfo, m_pPou);
	int res = dlgPortValue.exec();

	if (res != QDialog::Accepted)
	{
		return;
	}

	// 获取用户选择的接口信息
	_INTERFACE* pSelInf = const_cast<_INTERFACE*>(dlgPortValue.GetSelectedInf());

	// 绑定此接口
	this->bindInterface(pSelInf);

	// 重绘本功能块，用于绑定接口文字的及时更新
	this->update();

	QGraphicsItem::mouseDoubleClickEvent(event);
}


/// <summary>
/// 绑定一个接口
/// </summary>
/// <param name="pNewInf"></param>
void WindowAppBlockPort::bindInterface(_INTERFACE* pNewInf)
{
	// 2021-6-6增加，保存Port绑定的源接口指针
	this->m_toolInfo->bindPortInterface(pNewInf);

	// 将本变量的值和接口信息，保存到Port的工具信息中
	// m_strInfTitle = pNewInf->strFullName + PORT_INF_POSTFIX;

	m_strInfTitle = genPortInfName(pNewInf);

	m_pPou->bindPortAndInterface(this, pNewInf, m_strInfTitle);

	// 根据新的名字长度信息更新本矩形框
	updateRect();

	// 更新接口的位置及尺寸
	WindowAppBlockBase::updateInterfacesPostion();

	// 2021-6-6 增加，此处还得需要调整一下link连线的位置（如果有的话），因为port的尺寸会有变动
	emit blockMoveSignal(this);
}


/// <summary>
/// 2022-3-22 为Port中显示的接口名称做调整（局部变量不加Pou前缀，全局变量加Pou前缀）
/// </summary>
/// <param name="pNewInf"></param>
/// <returns></returns>
QString WindowAppBlockPort::genPortInfName(const _INTERFACE* pNewInf)
{
	QString strPortGroup = this->m_toolInfo->strPouName;
	QString strInfGroup = pNewInf->parent()->strPouName;

	// 如果和本Port在同一个Pou范围内
	if (strPortGroup == strInfGroup)
	{
		// 如果是局部变量，那么没有实例名
		if (pNewInf->parent()->Type == TOOL_TYPE::TOOL_TYPE_LOCAL_VARIABLE)
		{
			return (pNewInf->strName + PORT_INF_POSTFIX);
		}
		// 如果是Tool，则加上实例名
		else if(pNewInf->parent()->Type == TOOL_TYPE::TOOL_TYPE_STANDARD)
		{
			return (pNewInf->parent()->strInstanceName + "." + pNewInf->strName + PORT_INF_POSTFIX);
		}
	}
	// 否则，加上Pou名称返回

	return (pNewInf->strFullName + PORT_INF_POSTFIX);
}