86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
#include "mygraphicsscene.h"
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MyGraphicsScene::MyGraphicsScene()
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{
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m_myGraphicsItem= new MyGraphicsItem();
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}
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MyGraphicsScene::~MyGraphicsScene()
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{
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if(m_myGraphicsItem != NULL)
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{
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delete m_myGraphicsItem;
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m_myGraphicsItem = NULL;
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}
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}
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void MyGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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return QGraphicsScene::mousePressEvent(mouseEvent);
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}
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void MyGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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return QGraphicsScene::mouseMoveEvent(mouseEvent);
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}
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void MyGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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return QGraphicsScene::mouseReleaseEvent(mouseEvent);
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}
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void MyGraphicsScene::createScene(Marker marker)
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{
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m_myGraphicsItem->creatPicture(marker);
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//绘制留边
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this->setSceneRect(0,0,m_myGraphicsItem->boundingRect().width()+DRAWMARGINS,m_myGraphicsItem->boundingRect().height()+DRAWMARGINS);
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//如果scene未超过graphicsView的范围，图形就是居中显示的
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this->addItem(m_myGraphicsItem);
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m_myGraphicsItem->moveBy(DRAWMARGINS/2.0,DRAWMARGINS/2.0);//item居中显示
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}
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void MyGraphicsScene::createScene(QPixmap pixmap)
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{
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m_myGraphicsItem->creatPicture(pixmap);
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//绘制留边
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this->setSceneRect(0,0,m_myGraphicsItem->boundingRect().width()+DRAWMARGINS,m_myGraphicsItem->boundingRect().height()+DRAWMARGINS);
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//如果scene未超过graphicsView的范围，图形就是居中显示的
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this->addItem(m_myGraphicsItem);
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m_myGraphicsItem->moveBy(DRAWMARGINS/2.0,DRAWMARGINS/2.0);//item居中显示
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}
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void MyGraphicsScene::cleanScene()
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{
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if(m_myGraphicsItem != NULL)
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{
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this->removeItem(m_myGraphicsItem);
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}
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}
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QPicture MyGraphicsScene::getPicture(Marker marker,int penWidth)
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{
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QPicture pic;
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if(m_myGraphicsItem != NULL)
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{
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pic = m_myGraphicsItem->getPicture(marker,penWidth);
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}
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return pic;
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}
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void MyGraphicsScene::swithScene(QPicture pic)
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{
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if(m_myGraphicsItem != NULL)
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{
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m_myGraphicsItem->setPicture(pic);
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this->addItem(m_myGraphicsItem);
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}
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}
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void MyGraphicsScene::ReflushBlockScene(QPoint p)
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{
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if(m_myGraphicsItem != NULL)
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{
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m_myGraphicsItem->reflushBlockPos(p);
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}
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}
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