55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
#include "carddragitem.h"
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#include "cardzone.h"
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#include "tablezone.h"
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#include <QGraphicsScene>
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#include <QGraphicsSceneMouseEvent>
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#include <QCursor>
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CardDragItem::CardDragItem(AbstractCardItem *_item, int _id, const QPointF &_hotSpot, bool _faceDown, AbstractCardDragItem *parentDrag)
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: AbstractCardDragItem(_item, _hotSpot, parentDrag), id(_id), faceDown(_faceDown), currentZone(0)
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{
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}
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void CardDragItem::updatePosition(const QPointF &cursorScenePos)
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{
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QList<QGraphicsItem *> colliding = scene()->items(cursorScenePos);
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CardZone *cursorZone = 0;
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for (int i = colliding.size() - 1; i >= 0; i--)
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if ((cursorZone = qgraphicsitem_cast<CardZone *>(colliding.at(i))))
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break;
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if (!cursorZone)
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return;
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currentZone = cursorZone;
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QPointF zonePos = currentZone->scenePos();
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QPointF cursorPosInZone = cursorScenePos - zonePos;
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QPointF cardTopLeft = cursorPosInZone - hotSpot;
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QPointF newPos = zonePos + cursorZone->closestGridPoint(cardTopLeft);
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if (newPos != pos()) {
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for (int i = 0; i < childDrags.size(); i++)
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childDrags[i]->setPos(newPos + childDrags[i]->getHotSpot());
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setPos(newPos);
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}
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}
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void CardDragItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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setCursor(Qt::OpenHandCursor);
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QGraphicsScene *sc = scene();
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QPointF sp = pos();
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sc->removeItem(this);
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if (currentZone) {
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CardZone *startZone = qgraphicsitem_cast<CardZone *>(item->parentItem());
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currentZone->handleDropEvent(id, startZone, (sp - currentZone->scenePos()).toPoint(), faceDown);
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for (int i = 0; i < childDrags.size(); i++) {
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CardDragItem *c = static_cast<CardDragItem *>(childDrags[i]);
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currentZone->handleDropEvent(c->id, startZone, (sp - currentZone->scenePos() + c->getHotSpot()).toPoint(), faceDown);
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sc->removeItem(c);
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}
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}
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event->accept();
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}
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