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mapscene.cpp
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mapscene.cpp
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#include "mapscene.h"
#include "define.h"
#include "mobilenode.h"
#include "referencenode.h"
#include <QGraphicsScene>
#include <QSqlQuery>
#include <QList>
#include <QTimeLine>
#include <QGraphicsItemAnimation>
#include <QMessageBox>
#include <QString>
MapScene::MapScene(QObject *parent)
: QGraphicsScene(parent)
{
setSceneRect(0, 0, 1200, 895);//场景大小
setBackgroundBrush(Qt::white);
}
void MapScene::addRefNode()
{
ReferenceNode *node = new ReferenceNode;
node->setText("ref");
node->setPos(600,450);
this->addItem(node);
}
void MapScene::setFloor(int f,bool exist)
{
this->floor = f;
if(exist)
{
QList<QGraphicsItem*> tempList = this->items();
while(!tempList.isEmpty())
{
this->addItem(tempList.last());
tempList.pop_back();
}
}
else
{
addPixmap(QPixmap(tr(":/images/map%1.jpg").arg(f)));
}
}
int MapScene::getFloor()
{
return floor;
}
void MapScene::deleteRefNode()
{
QList<QGraphicsItem *> items = this->selectedItems();
QList<QGraphicsItem *>::iterator i = items.begin();
while(i != items.end())
{
Node *node = dynamic_cast<Node *>(*i);
int roomId = node->text().toInt();
int floor,number;
floor = roomId/100;
number = roomId%100;
QSqlQuery query;
query.prepare("DELETE FROM referNode WHERE floor=? AND number=?");
query.addBindValue(floor);
query.addBindValue(number);
query.exec();
this->referenceNodeMap.remove(roomId);
i++;
}
qDeleteAll(items);
}
void MapScene::showRefNode()
{
static bool show = false;
if(show)
{
QList<ReferenceNode*> nodeList = this->referenceNodeMap.values();
while(!nodeList.isEmpty())
{
this->removeItem(nodeList.last());
nodeList.pop_back();
}
this->referenceNodeMap.clear();
show = false;
}
else
{
this->initReferenceNodeMap();
QList<ReferenceNode*> nodeList = this->referenceNodeMap.values();
while(!nodeList.isEmpty())
{
this->addItem(nodeList.last());
nodeList.pop_back();
}
show = true;
}
}
void MapScene::initReferenceNodeMap()
{
QSqlQuery q;
q.exec(QString("SELECT floor,number FROM referNode WHERE floor=%1").arg(this->floor));
while(q.next())
{
int floor,number,roomId,x,y;
floor = q.value(0).toInt();
number = q.value(1).toInt();
roomId = floor*100 + number;
QSqlQuery q2;
q2.exec(QString("SELECT x,y FROM ROOM WHERE floor=%1 AND number=%2").arg(floor).arg(number));
q2.next();
x = q2.value(0).toInt();
y = q2.value(1).toInt();
ReferenceNode *node = new ReferenceNode;
node->setText(QString::number(roomId));
node->setPos(x, y);
this->referenceNodeMap.insert(floor*100+number, node);
}
}
void MapScene::doMobileMsg(const QVector<int> msg)
{
int roomFloor,roomNumber,fixId,help;
QString netId;
//两字节,低位在前,高位在后
roomFloor = msg.at(M_ROOM_FLOOR);
roomNumber = msg.at(M_ROOM_NUMBER);
fixId = msg.at(M_FIXID);
help = msg.at(M_HELP);
netId = QString::number((msg.at(M_NETID_HI)<<8)+msg.at(M_NETID_LO),16);
//数据合法才显示
if(roomFloor && roomNumber)
{
//查询数据库获取坐标
QSqlQuery query;
query.exec(QString("SELECT x,y FROM room WHERE floor=%1 AND number=%2").arg(roomFloor).arg(roomNumber));
query.next();
int x,y;
x = query.value(0).toInt() + (std::rand() % 20 - 10);//半径为10像素的范围
y = query.value(1).toInt() + (std::rand() % 20 - 10);
//向数据库添加定位记录
query.prepare("INSERT INTO location"
"(fixId,netId,floor,number,help)"
"VALUES(?,?,?,?,?)");
query.addBindValue(fixId);
query.addBindValue(netId);
query.addBindValue(roomFloor);
query.addBindValue(roomNumber);
query.addBindValue(help);
query.exec();
//节点已经存在
if(this->mobileNodeMap.contains(fixId))
{
MobileNode *mn = dynamic_cast<MobileNode *>(*(this->mobileNodeMap.find(fixId)));
mn->setHelp(help);
if(help)
{
query.prepare("SELECT name FROM employee WHERE fixId = ?");
query.addBindValue(fixId);
query.exec();
query.next();
QMessageBox msgBox;
msgBox.setText(query.value(0).toString()+" needs HELP!!!\n"
"He is in " + QString::number(roomFloor*100+roomNumber));
msgBox.exec();
}
moveMobileNode(mn,QPointF(x,y));
}
else
{
addMobileNode(fixId,QPointF(x,y));
}
}
}
void MapScene::doTemperatureMsg(const QVector<int> msg)
{
int floor,number,t,roomId;
floor = msg.at(RT_ROOM_FLOOR);
number = msg.at(RT_ROOM_NUMBER);
t = msg.at(RT_ROOM_TEMP);
roomId = floor*100 + number;
if(this->temperatureNodeMap.contains(roomId))
{//更新显示温度
QGraphicsTextItem * tn = this->temperatureNodeMap.value(roomId);
tn->setPlainText(QString("%1`C").arg(t));
}
else
{//添加温度节点
addTemperatureNode(floor, number, t);
}
QSqlQuery q;//温度数据记录到数据
q.prepare("INSERT INTO temperature (floor,number,temperature)"
"VALUES (?,?,?)");
q.addBindValue(floor);
q.addBindValue(number);
q.addBindValue(t);
q.exec();
}
void MapScene::addMobileNode(int fixId, QPointF position)
{
MobileNode *node = new MobileNode(this);
node->setText(tr("%1").arg(fixId));
node->setPos(position);
//选中后更新员工信息窗口
connect(node, SIGNAL(itemSelected(const int)),
this, SIGNAL(refreshEmployeeTableWidget(const int)));
this->addItem(node);
this->mobileNodeMap.insert(fixId,node);
}
//创建温度节点,并添加到scene和添加到scene的temperatureNodeMap
void MapScene::addTemperatureNode(int floor,int number, int t)
{
QGraphicsTextItem *temp = new QGraphicsTextItem(QString("%1`C").arg(t));
QSqlQuery q;
int x,y;
q.exec(QString("SELECT x,y FROM room WHERE floor=%1 AND number=%2").arg(floor).arg(number));
if(q.next())
{
x = q.value(0).toInt() - 50;
y = q.value(1).toInt() - 50;
}
temp->setPos(x,y);
this->addItem(temp);
this->temperatureNodeMap.insert(floor*100+number,temp);
}
void MapScene::moveMobileNode(MobileNode *mn, QPointF dst)
{
QGraphicsItemAnimation *animation = new QGraphicsItemAnimation;
QTimeLine *timer = new QTimeLine(1500);
animation->setItem(mn);
animation->setPosAt(1.0, dst);
animation->setTimeLine(timer);
timer->start();
}
QMap<int,MobileNode*> MapScene::getMobileNodeMap()
{
return this->mobileNodeMap;
}
QMap<int,ReferenceNode*> MapScene::getReferenceNodeMap()
{
return this->referenceNodeMap;
}
QMap<int,QGraphicsTextItem *> MapScene::getTemperatureNodeMap()
{
return this->temperatureNodeMap;
}