PlotterHMI/datafile/view/mygraphicsscene.cpp

#include "mygraphicsscene.h"

MyGraphicsScene::MyGraphicsScene()
{
    m_myGraphicsItem= new MyGraphicsItem();
}

MyGraphicsScene::~MyGraphicsScene()
{
    if(m_myGraphicsItem != NULL)
    {
        delete m_myGraphicsItem;
        m_myGraphicsItem = NULL;
    }
}

void MyGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
{
    return QGraphicsScene::mousePressEvent(mouseEvent);
}

void MyGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
{
    return QGraphicsScene::mouseMoveEvent(mouseEvent);
}

void MyGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
{
    return QGraphicsScene::mouseReleaseEvent(mouseEvent);
}

void MyGraphicsScene::createScenePathAndPic(QPainterPath path, QPicture pic)
{
    if(m_myGraphicsItem != NULL)
    {
        this->clear();
        m_myGraphicsItem->setPaintPathAndPic(path,pic);
        this->addItem(m_myGraphicsItem);
    }
}

void MyGraphicsScene::addItemToScene()
{
    //绘制留边
    this->setSceneRect(0,0,m_myGraphicsItem->boundingRect().width()+DRAWMARGINS,m_myGraphicsItem->boundingRect().height()+DRAWMARGINS);
    //如果scene未超过graphicsView的范围，图形就是居中显示的
    this->addItem(m_myGraphicsItem);
    m_myGraphicsItem->moveBy(DRAWMARGINS/2.0,DRAWMARGINS/2.0);//item居中显示
}

void MyGraphicsScene::cleanScene()
{
    if(m_myGraphicsItem != NULL)
    {
        this->removeItem(m_myGraphicsItem);
    }
}

QPicture MyGraphicsScene::getPictureByDat(Marker marker,int penWidth)
{
    QPicture pic;
    if(m_myGraphicsItem != NULL)
    {
        pic = m_myGraphicsItem->getPictureByDat(marker,penWidth);
    }
    return pic;
}

QPicture MyGraphicsScene::getPictureByBmp(QPixmap pixmap,int penWidth)
{
    QPicture pic;
    if(m_myGraphicsItem != NULL)
    {
        pic = m_myGraphicsItem->getPictureByBmp(pixmap,penWidth);
    }
    return pic;
}

QPainterPath MyGraphicsScene::getDrawPath()
{
    QPainterPath path;
    if(m_myGraphicsItem != NULL)
    {
        path = m_myGraphicsItem->getDrawPath();
    }
    return path;
}

void MyGraphicsScene::swithSceneByPic(QPicture pic)
{
    if(m_myGraphicsItem != NULL)
    {
        this->clear();
        m_myGraphicsItem->setPicture(pic);
        this->addItem(m_myGraphicsItem);
    }
}

void MyGraphicsScene::swithSceneByPath(QPainterPath path)
{
    if(m_myGraphicsItem != NULL)
    {
        this->clear();
        m_myGraphicsItem->setPaintPath(path);
        this->addItem(m_myGraphicsItem);
    }
}

void MyGraphicsScene::ReflushBlockScene(QPoint p)
{
    if(m_myGraphicsItem != NULL)
    {
        m_myGraphicsItem->reflushBlockPos(p);
    }
}