DiagramDesigner/diagramCavas/source/util/baseSelector.cpp

#include "util/baseSelector.h"
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsView>
#include <QDebug>
#include <QMimeData>
#include <QMessageBox>
#include "graphicsItem/graphicsBaseItem.h"
#include "graphicsItem/handleText.h"
#include "powerEntity.h"
#include "topologyManager.h"
#include "graphicsItem/itemPort.h"
#include "graphicsItem/electricConnectLineItem.h"
#include "topologyManager.h"

QPointF BaseSelector::ms_ptMouseDown(0.0,0.0);
QPointF BaseSelector::ms_ptMouseLast(0.0,0.0);
double BaseSelector::ms_dAngleMouseDownToItem = 0.0;
int BaseSelector::ms_nDragHandle = 0;

BaseSelector::BaseSelector(FixedPortsModel* model,QObject *parent)
    : _model(model)
    ,QObject(parent)
{
    m_type = ST_base;
    m_opMode = OM_none;
    m_bHoverOnHandel = false;
}
BaseSelector::~BaseSelector()
{

}

void BaseSelector::mousePressEvent(QGraphicsSceneMouseEvent* event, DesignerScene* scene)
{
    if (event->button() != Qt::LeftButton)
        return;

    _model->activateModel();        //激活当前窗口
    ms_ptMouseDown = event->scenePos();
    ms_ptMouseLast = event->scenePos();

    if(!m_bHoverOnHandel)
        scene->callParentEvent(event); //此处是通过触发QGraphicsScene的事件函数来取消所有被选中item的选中状态

    m_opMode = OM_none;

    QList<QGraphicsItem *> items = scene->selectedItems();
    if (items.count() == 1) //只有一个选中
    {
        GraphicsProjectModelItem* item = qgraphicsitem_cast<GraphicsProjectModelItem*>(items.first());
        if(item)
        {
            GraphicsItemType tpe = item->getItemType();
            if(tpe == GIT_link)     //对象是连接线
            {
                m_opMode = OM_linkMove;
                setCursor(scene, Qt::ArrowCursor);
                emit setWorkingSelector(ST_linkMoving);
            }
            else
            {
                //需要增加当前是否点击在控制点的判断函数
                ms_nDragHandle = item->collidesWithHandle(event->scenePos());
                if(ms_nDragHandle != H_none && ms_nDragHandle <= H_left) //在缩放控制点上
                {
                    m_opMode = OM_scale;
                    emit setWorkingSelector(ST_scaling);
                }
                else if(ms_nDragHandle >= H_rotate_leftTop && ms_nDragHandle <= H_rotate_leftBottom) //在旋转控制点上
                {
                    m_opMode = OM_rotate;
                    //计算夹角
                    QPointF originPoint = item->mapToScene(item->boundingRect().center());
                    double dLengthY = ms_ptMouseLast.y() - originPoint.y();
                    double dLengthX = ms_ptMouseLast.x() - originPoint.x();
                    ms_dAngleMouseDownToItem = atan2(dLengthY, dLengthX) * 180 / M_PI;
                    // if(atan2(dLengthY, dLengthX) < 0)
                    //     ms_dAngleMouseDownToItem += 360.0;
                    //创建副本
                    item->createOperationCopy();
                    emit setWorkingSelector(ST_rotation);
                }
                else if(ms_nDragHandle > H_rotate_leftBottom && ms_nDragHandle < H_textCaption) //编辑控制点上
                {
                    m_opMode = OM_edit;
                    setCursor(scene, Qt::ClosedHandCursor);
                    emit setWorkingSelector(ST_editing);
                }
                else if(ms_nDragHandle >= H_connect ) //连接控制点
                {
                    m_opMode = OM_connect;
                    //setCursor(scene, Qt::ClosedHandCursor);
                    setCursor(scene, Qt::ArrowCursor);
                    emit setWorkingSelector(ST_connecting);
                }
                else
                {
                    m_opMode = OM_move;
                    setCursor(scene, Qt::ClosedHandCursor);
                    emit setWorkingSelector(ST_moving);
                }
            }
        }
    }
    else if (items.count() > 1) //选中多个
    {
        m_opMode = OM_move;
        emit setWorkingSelector(ST_moving);
        setCursor(scene, Qt::ClosedHandCursor);
    }
    else if(items.count() == 0)             //单独移动子类
    {
        QList<QGraphicsItem *> items = scene->items(ms_ptMouseLast);
        if (items.count() == 1)
        {
            ItemControlHandle* pHandle = qgraphicsitem_cast<ItemControlHandle*>(items.first());
            if(pHandle)
            {
                //GraphicsProjectModelItem* item = pHandle->getParentPtr();
                ms_nDragHandle = pHandle->getTag();
                    //ms_nDragHandle = item->collidesWithHandle(event->scenePos());
                if(ms_nDragHandle >= H_textCaption && ms_nDragHandle < H_connect) //移动文本
                {
                    m_opMode = OM_subMove;
                    setCursor(scene, Qt::ClosedHandCursor);
                    emit setWorkingSelector(ST_subMoving);
                }
            }
        }
    }

    if(m_opMode == OM_move) //可以多个选中同时移动
    {
        for(int n = 0; n < items.size(); n++)
        {
            //创建副本
            GraphicsProjectModelItem* item = qgraphicsitem_cast<GraphicsProjectModelItem*>(items.at(n));
            GraphicsItemType tpe = item->getItemType();
            if(tpe == GIT_link)
                continue;
            item->createOperationCopy();
        }
    }
    else if(m_opMode == OM_none)
    {
        QGraphicsView *view = scene->getView();
        if(view)
            view->setDragMode(QGraphicsView::RubberBandDrag);
    }

}

void BaseSelector::mouseMoveEvent(QGraphicsSceneMouseEvent* event, DesignerScene* scene)
{
    ms_ptMouseLast = event->scenePos();

    QList<QGraphicsItem *> items = scene->selectedItems();

    if (items.count() == 1)
    {
        AbstractShape* item = qgraphicsitem_cast<AbstractShape*>(items.first());
        if(item)
        {
            if(ms_nDragHandle == H_none)
            {
                //设置光标样式
                int nHandle = item->collidesWithHandle(event->scenePos());
                if(nHandle == H_none)
                {
                    setCursor(scene, Qt::ArrowCursor);
                    m_bHoverOnHandel = false;
                }
                else if(nHandle >= H_edit)
                {
                    setCursor(scene, Qt::OpenHandCursor);
                    m_bHoverOnHandel = true;
                }
                else
                {
                    //划分为四组区间范围，分别水平组、垂直组、一三象限倾斜组、二四象限倾斜组，每组由两个对称区间构成
                    double dRotation = item->rotation();
                    dRotation += item->getSyncRotationDataFromParent();
                    //让角度保持在正负180的区间，也就是上下两个半圈，这样易于象限判断
                    if (dRotation > 180)
                        dRotation -= 360;
                    if (dRotation < -180)
                        dRotation += 360;
                    //qDebug() << "selfRotation:" << item->rotation() << " syncRotation:" << item->getSyncRotationDataFromParent() << " fininalRotatio:" << dRotation;
                    double dTileAngle = 15.0;

                    switch (nHandle)
                    {
                    case H_leftTop:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeHorCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeVerCursor);
                        else //水平区间
                            setCursor(scene, Qt::SizeFDiagCursor);
                        break;
                    }
                    case H_top:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeHorCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else
                            setCursor(scene, Qt::SizeVerCursor);
                        break;
                    }
                    case H_rightTop:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeVerCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeHorCursor);
                        else
                            setCursor(scene, Qt::SizeBDiagCursor);
                        break;
                    }
                    case H_right:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeVerCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else
                            setCursor(scene, Qt::SizeHorCursor);
                        break;
                    }
                    case H_rightBottom:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeHorCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeVerCursor);
                        else //水平区间
                            setCursor(scene, Qt::SizeFDiagCursor);
                        break;
                    }
                    case H_bottom:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeHorCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else
                            setCursor(scene, Qt::SizeVerCursor);
                        break;
                    }
                    case H_leftBottom:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeVerCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeHorCursor);
                        else //水平区间
                            setCursor(scene, Qt::SizeBDiagCursor);
                        break;
                    }
                    case H_left:
                    {
                        if((dRotation > -145+dTileAngle && dRotation < -45-dTileAngle) || (dRotation > 45+dTileAngle && dRotation < 145-dTileAngle)) //垂直区间
                            setCursor(scene, Qt::SizeVerCursor);
                        else if((dRotation >= -45-dTileAngle && dRotation <= -45+dTileAngle) || (dRotation >= 145-dTileAngle && dRotation <= 145+dTileAngle)) //一三象限倾斜
                            setCursor(scene, Qt::SizeBDiagCursor);
                        else if((dRotation >= -145-dTileAngle && dRotation <= -145+dTileAngle) || (dRotation >= 45-dTileAngle && dRotation <= 45+dTileAngle)) //二四象限倾斜
                            setCursor(scene, Qt::SizeFDiagCursor);
                        else
                            setCursor(scene, Qt::SizeHorCursor);
                        break;
                    }
                    case H_rotate_leftTop:
                    {
                        int nSize = 24;
                        QCursor rotateCursor = QCursor(QPixmap(":/images/icon_rotate.png")/*.scaled(nSize, nSize, Qt::KeepAspectRatio, Qt::SmoothTransformation)*/);
                        setCursor(scene, rotateCursor);
                        break;
                    }
                    case H_rotate_rightTop:
                    {
                        int nSize = 24;
                        QCursor rotateCursor = QCursor(QPixmap(":/images/icon_rotate.png")/*.scaled(nSize, nSize, Qt::KeepAspectRatio, Qt::SmoothTransformation)*/);
                        setCursor(scene, rotateCursor);
                        break;
                    }
                    case H_rotate_rightBottom:
                    {
                        int nSize = 24;
                        QCursor rotateCursor = QCursor(QPixmap(":/images/icon_rotate.png")/*.scaled(nSize, nSize, Qt::KeepAspectRatio, Qt::SmoothTransformation)*/);
                        setCursor(scene, rotateCursor);
                        break;
                    }
                    case H_rotate_leftBottom:
                    {
                        int nSize = 24;
                        QCursor rotateCursor = QCursor(QPixmap(":/images/icon_rotate.png")/*.scaled(nSize, nSize, Qt::KeepAspectRatio, Qt::SmoothTransformation)*/);
                        setCursor(scene, rotateCursor);
                        break;
                    }
                    default:
                        break;
                    }

                    m_bHoverOnHandel = true;
                }
            }
        }
    }
}

void BaseSelector::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, DesignerScene* scene)
{
    setCursor(scene, Qt::ArrowCursor);

    if(m_opMode == OM_none)
    {
        QGraphicsView *view = scene->getView();
        if(view)
            view->setDragMode(QGraphicsView::NoDrag);
    }

    m_opMode = OM_none;
    m_bHoverOnHandel = false;
    ms_nDragHandle = H_none;
    scene->callParentEvent(event);
}

void BaseSelector::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event, DesignerScene* scene)
{
    QList<QGraphicsItem *> items = scene->selectedItems();
    if(items.count() == 0)
    {
        QList<QGraphicsItem *> items = scene->items(ms_ptMouseLast);
        if (items.count() == 1)
        {
            ItemControlHandle* pHandle = qgraphicsitem_cast<ItemControlHandle*>(items.first());
            if(pHandle)
            {
                ms_nDragHandle = pHandle->getTag();
                    //ms_nDragHandle = item->collidesWithHandle(event->scenePos());
                if(ms_nDragHandle >= H_textCaption && ms_nDragHandle < H_connect) //是文字节点
                {
                    HandleText* pText = qgraphicsitem_cast<HandleText*>(pHandle);
                    if(pText)
                    {
                        //m_opMode = OM_subMove;
                        //emit setWorkingSelector(ST_subMoving);
                        pText->creatEditor();
                    }
                }
            }
        }
    }
    else if(items.count() == 1)         //不是文字节点
    {
        GraphicsProjectModelItem* item = qgraphicsitem_cast<GraphicsProjectModelItem*>(items.first());
        if(item)
        {
            GraphicsItemType tpe = item->getItemType();
            if(tpe != GIT_link)
            {
                QString modelName = item->getModelName();       //todo:additem时填写模型类型
                QUuid uuid = item->itemId();
                _model->showModelDlg(modelName,uuid,item);
            }
        }
    }
}

void BaseSelector::dragEnterEvent(QGraphicsSceneDragDropEvent *event, DesignerScene*)
{
    if (event->mimeData()->hasText()) {
        event->acceptProposedAction();
    }
}

void BaseSelector::dragMoveEvent(QGraphicsSceneDragDropEvent *event, DesignerScene*)
{
    if (event->mimeData()->hasText()) {
        event->acceptProposedAction();
    }
}

void BaseSelector::dropEvent(QGraphicsSceneDragDropEvent *event, DesignerScene*)
{
    if (event->mimeData()->hasText()) {
        QString text = event->mimeData()->text();
        QString uuid = QString::fromLocal8Bit(event->mimeData()->data("application/id"));
        // 根据拖拽的数据创建相应的图形项并添加到场景中
        QGraphicsTextItem *textItem = new QGraphicsTextItem(text);
        textItem->setPos(event->scenePos());
        //addItem(textItem);
        event->acceptProposedAction();

        //根据data数据新增拖拽的item
        QMap<QUuid,GraphicsProjectModelItem*> items =  _model->allItems();
        if(items.contains(QUuid(uuid))){
            QMessageBox::information(NULL, QString::fromWCharArray(L"提示"), QString::fromWCharArray(L"此对象在当前页已存在"));
            return;
        }
        else{
            _model->addNodeItem(QUuid(uuid),event->scenePos());
        }
    }
}

void BaseSelector::contextMenuEvent(QGraphicsSceneContextMenuEvent *event,DesignerScene* scene)
{
    QList<QGraphicsItem*> listItem = scene->selectedItems();
    if(listItem.isEmpty())
        return;
    else if(listItem.count() == 1)
    {
        QMenu menu;
        QAction *removeAction = menu.addAction(QString::fromWCharArray(L"删除"));
        //connect(removeAction,&QAction::triggered,this,&DesignerScene::onDeleteClicked);
        connect(removeAction,&QAction::triggered,[&,scene](){
            QList<QGraphicsItem*> listItem = scene->selectedItems();
            if(listItem.isEmpty())
                return;
            else if(listItem.count() == 1)
            {
                GraphicsProjectModelItem* item = qgraphicsitem_cast<GraphicsProjectModelItem*>(listItem.first());
                if(item)
                {
                    GraphicsItemType tpe = item->getItemType();
                    if(tpe > QGraphicsItem::UserType && tpe < QGraphicsItem::UserType+1000)
                    {
                        if(_model)
                            _model->deleteNodeItem(item);
                    }
                }
            }
        });
        menu.exec(QCursor::pos());
    }
}

void BaseSelector::setCursor(DesignerScene *scene, const QCursor &cursor)
{
    QGraphicsView *view = scene->getView();
    if (view)
        view->setCursor(cursor);
}

void BaseSelector::updateConnectLineByTopology(QList<QGraphicsItem *> lst)
{
    for(auto iter:lst)        //更新连接线
    {
        auto item = dynamic_cast<GraphicsProjectModelItem*>(iter);
        if(item)
        {
            if(item->getItemType() != GIT_link)     //获取非电缆对象
            {
                QUuid nId = item->itemId();
                auto lstConnect = TopologyManager::instance().getConnectionsFor(nId.toString());
                for(auto &pConnect:lstConnect)
                {
                    if(pConnect)
                    {
                        QString fromTerminalId = pConnect->fromTerminalId();        //connect自身包含头尾巴顺序
                        QString toTerminalId = pConnect->toTerminalId();

                        QPointF fromPos = _model->getTerminalPos(fromTerminalId);
                        QPointF toPos = _model->getTerminalPos(toTerminalId);

                        ElectricConnectLineItem* connectItem = _model->getLineItemById(fromTerminalId);
                        if(connectItem)
                        {
                            connectItem->setStartPoint(fromPos);
                            connectItem->setEndPoint(toPos);
                            //qDebug()<<nId<<"start:"<<fromPos.x()<<","<<fromPos.y()<<"end:"<<toPos.x()<<","<<toPos.y();
                            connectItem->calculatePath();
                        }
                    }
                }
            }
        }
    }
}