#include "WindowAppBlockParallel.h"
#include "WindowAppItemInterface.h"


WindowAppBlockParallel::WindowAppBlockParallel(TOOL* pNewTool, POU* Pou, bool bShowOnly, QGraphicsObject* parent /*= nullptr*/)
	: WindowAppBlockStandardBase(pNewTool, Pou, bShowOnly, parent)
	, m_ParallelLineItem(nullptr)
{
	//// 允许发送尺寸变更通知
	//setFlag(QGraphicsItem::ItemSendsGeometryChanges);

	// 响应鼠标悬停事件（重要，否则QGraphicsItem默认是不响应鼠标悬停事件的）
	this->setAcceptHoverEvents(true);

	// 更新矩形区域的尺寸
	this->updateRect();
}

WindowAppBlockParallel::~WindowAppBlockParallel()
{

}


/// <summary>
/// 添加接口（Parallel工具需要额外添加ToolInterface接口）
/// </summary>
void WindowAppBlockParallel::addItemInterfaces()
{
	// 添加标准接口
	WindowAppBlockStandardBase::addItemInterfaces();
	// 添加Tool接口
	WindowAppBlockStandardBase::addItemToolInterfaces();

	// 2022-8-23，首次添加时需要直接更新并行母线的位置，否则ToolEnd接口会按照默认形式显示
	this->updateParallelLine();
	
}


/// <summary>
/// 更新并行母线的位置
/// </summary>
void WindowAppBlockParallel::updateParallelLine()
{
	if (m_itemInterfaces.size() > 0)
	{
		m_itemInterfaces[PARALL_END_INF_INDX]->updatePostion();
	}	
}


/// <summary>
/// 绘制并行控件
/// </summary>
/// <param name="painter"></param>
/// <param name="option"></param>
/// <param name="widget"></param>
void WindowAppBlockParallel::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
	// WindowAppBlockStandardBase::paint(painter, option, widget);

	Q_UNUSED(option);
	Q_UNUSED(widget);

	painter->save();

	painter->setRenderHint(QPainter::Antialiasing, true);

	// 绘制边框
	this->drawFrame(painter);

	// 绘制功能块名字
	WindowAppBlockStandardBase::DrawBlockTitle(painter, true);

	// 绘制索引号
	WindowAppBlockStandardBase::DrawIndex(painter);

	painter->restore();
}


/// <summary>
/// 功能块有变动时
/// </summary>
/// <param name="change"></param>
/// <param name="value"></param>
/// <returns></returns>
QVariant WindowAppBlockParallel::itemChange(GraphicsItemChange change, const QVariant& value)
{
	// 首先调用基类的函数
	WindowAppBlockBase::itemChange(change, value);

	// 移动完毕之后，更新并行母线的位置
	if (change == QGraphicsItem::ItemPositionHasChanged && scene())
	{
		this->updateParallelLine();
	}

	return QGraphicsItem::itemChange(change, value);
}


/// <summary>
/// 绘制边框
/// </summary>
/// <param name="painter"></param>
void WindowAppBlockParallel::drawFrame(QPainter* painter)
{
	// 设置画笔
	if (!this->isSelected())
	{
		painter->setPen(QPen(COLOR_FRAME_PARALLEL, PEN_WIDTH_FRAME));
	}
	else
	{
		painter->setPen(QPen(COLOR_FRAME_PARALLEL, PEN_WIDTH_FRAME_BOLD));
	}

	// 填充
	painter->setBrush(COLOR_TBD_BG);
	// 绘制边框
	painter->drawRoundedRect(blockRect, 0, 0);
}


/// <summary>
/// 更新矩形区域的尺寸 
/// </summary>
void WindowAppBlockParallel::updateRect()
{
	// 计算高度
	int blockHeight = PARA_BASIC_HEIGHT;

	// 计算宽度
	int blockWidth = PARA_BASIC_WIDTH;

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

	// 序号矩形区域
	blockIndexRect.setRect(
		blockRect.right() - TBD_INDEX_WIDTH,
		blockRect.top() - TBD_INDEX_HEIGHT / 2,
		TBD_INDEX_WIDTH,
		TBD_INDEX_HEIGHT
	);

	// 总体矩形边界
	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
	);
}