117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
#include "graphicsItem/graphicsBaseItem.h"
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#include <QGraphicsScene>
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GraphicsBaseItem::GraphicsBaseItem(QGraphicsItem *parent)
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: AbstractShapeType<QGraphicsItem>(parent)
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{
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m_type = T_item;
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//初始化缩放操作用的handle
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//m_vecHanle.reserve(H_left);
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for(int i = H_leftTop; i <= H_left; i++)
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{
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ItemControlHandle* pHandle = new ItemControlHandle(this);
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pHandle->setType(T_resize);
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pHandle->setTag(i);
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m_vecHanle.insert(i-1,pHandle);
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}
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for(int i = H_rotate_leftTop; i <= H_rotate_leftBottom; i++)
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{
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ItemControlHandle* pHandle = new ItemControlHandle(this);
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pHandle->setType(T_rotate);
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pHandle->setTag(i);
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m_vecHanle.insert(i-1,pHandle);
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}
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setFlag(QGraphicsItem::ItemIsMovable, true);
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setFlag(QGraphicsItem::ItemIsSelectable, true);
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setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
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setAcceptHoverEvents(true);
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}
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GraphicsBaseItem::~GraphicsBaseItem()
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{
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}
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void GraphicsBaseItem::createOperationCopy()
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{
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m_pOperationCopy = new QGraphicsPathItem(this->shape());
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m_pOperationCopy->setPen(Qt::DashLine);
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m_pOperationCopy->setPos(this->pos());
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m_pOperationCopy->setTransformOriginPoint(this->transformOriginPoint());
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m_pOperationCopy->setTransform(this->transform());
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m_pOperationCopy->setRotation(this->rotation());
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m_pOperationCopy->setScale(this->scale());
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m_pOperationCopy->setZValue(this->zValue());
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QGraphicsScene* scene = this->scene();
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if(scene && m_pOperationCopy)
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{
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scene->addItem(m_pOperationCopy);
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m_movingIniPos = this->pos();
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}
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}
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void GraphicsBaseItem::removeOperationCopy()
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{
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QGraphicsScene* scene = this->scene();
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if(scene && m_pOperationCopy)
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{
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if(this->pos() != m_pOperationCopy->pos())
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this->setPos(m_pOperationCopy->pos()); //本体移动到副本的位置
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if(this->rotation() != m_pOperationCopy->rotation())
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this->setRotation(m_pOperationCopy->rotation()); //本体旋转至副本的角度
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scene->removeItem(m_pOperationCopy);
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delete m_pOperationCopy;
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m_pOperationCopy = nullptr;
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}
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}
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void GraphicsBaseItem::moveOperationCopy(const QPointF& distance)
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{
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if(m_pOperationCopy)
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m_pOperationCopy->setPos(m_movingIniPos + distance);
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}
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void GraphicsBaseItem::rotateOperationCopy(const double& dAngle)
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{
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if(m_pOperationCopy)
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m_pOperationCopy->setRotation(dAngle);
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}
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void GraphicsBaseItem::syncRotationDataFromParent(const double& data)
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{
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//m_dSyncRotationByParent = rotation() + data;
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m_dSyncRotationByParent += data;
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//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
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if (m_dSyncRotationByParent > 180)
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m_dSyncRotationByParent -= 360;
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if (m_dSyncRotationByParent < -180)
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m_dSyncRotationByParent += 360;
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}
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QVariant GraphicsBaseItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant& value)
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{
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if (change == QGraphicsItem::ItemSelectedHasChanged)
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{
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QGraphicsItemGroup *group = dynamic_cast<QGraphicsItemGroup *>(parentItem());
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if(!group)
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setHandleVisible(value.toBool());
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else //在某一组群中，由组群展示是否选中，自身不做展示
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{
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setSelected(false);
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return QVariant::fromValue<bool>(false);
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}
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}
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return QGraphicsItem::itemChange(change, value);
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}
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void GraphicsBaseItem::contextMenuEvent(QGraphicsSceneContextMenuEvent* event)
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{
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Q_UNUSED(event);
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}
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