89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
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#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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//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.push_back(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::createMovingCopy()
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{
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m_pMovingCopy = new QGraphicsPathItem(this->shape());
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m_pMovingCopy->setPen(Qt::DashLine);
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m_pMovingCopy->setPos(this->pos());
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m_pMovingCopy->setTransformOriginPoint(this->transformOriginPoint());
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m_pMovingCopy->setTransform(this->transform());
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m_pMovingCopy->setRotation(this->rotation());
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m_pMovingCopy->setScale(this->scale());
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m_pMovingCopy->setZValue(this->zValue());
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QGraphicsScene* scene = this->scene();
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if(scene && m_pMovingCopy)
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{
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scene->addItem(m_pMovingCopy);
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m_movingIniPos = this->pos();
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}
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}
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void GraphicsBaseItem::removeMovingCopy()
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{
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QGraphicsScene* scene = this->scene();
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if(scene && m_pMovingCopy)
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{
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this->setPos(m_pMovingCopy->pos()); //本体先移动到副本的位置
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scene->removeItem(m_pMovingCopy);
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delete m_pMovingCopy;
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m_pMovingCopy = nullptr;
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}
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}
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void GraphicsBaseItem::moveMovingCopy(const QPointF& distance)
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{
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if(m_pMovingCopy)
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m_pMovingCopy->setPos(m_movingIniPos + distance);
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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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