124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
#include "arrowitem.h"
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#include "carditem.h"
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#include "cardzone.h"
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#include "player.h"
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#include "math.h"
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#include <QPainter>
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#include <QGraphicsSceneMouseEvent>
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#include <QGraphicsScene>
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ArrowItem::ArrowItem(Player *_player, int _id, CardItem *_startItem, CardItem *_targetItem, const QColor &_color)
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: QGraphicsItem(), player(_player), id(_id), startItem(_startItem), targetItem(_targetItem), color(_color), fullColor(true)
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{
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setZValue(2000000005);
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if (startItem && targetItem)
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updatePath();
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}
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void ArrowItem::updatePath()
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{
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QPointF endPoint = targetItem->mapToScene(QPointF(targetItem->boundingRect().width() / 2, targetItem->boundingRect().height() / 2));
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updatePath(endPoint);
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}
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void ArrowItem::updatePath(const QPointF &endPoint)
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{
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const double arrowWidth = 15.0;
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const double headWidth = 40.0;
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const double headLength = headWidth / sqrt(2);
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QPointF startPoint = startItem->mapToScene(QPointF(startItem->boundingRect().width() / 2, startItem->boundingRect().height() / 2));
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QLineF line(startPoint, endPoint);
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qreal lineLength = line.length();
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prepareGeometryChange();
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if (lineLength < headLength)
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path = QPainterPath();
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else {
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path = QPainterPath(QPointF(0, -arrowWidth / 2));
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path.lineTo(0, arrowWidth / 2);
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path.lineTo(lineLength - headLength, arrowWidth / 2);
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path.lineTo(lineLength - headLength, headWidth / 2);
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path.lineTo(lineLength, 0);
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path.lineTo(lineLength - headLength, -headWidth / 2);
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path.lineTo(lineLength - headLength, -arrowWidth / 2);
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path.lineTo(0, -arrowWidth / 2);
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}
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setPos(startPoint);
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setTransform(QTransform().rotate(-line.angle()));
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}
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void ArrowItem::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
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{
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QColor paintColor(color);
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if (fullColor)
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paintColor.setAlpha(200);
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else
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paintColor.setAlpha(150);
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painter->setBrush(paintColor);
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painter->drawPath(path);
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}
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void ArrowItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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if (!player->getLocal()) {
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event->ignore();
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return;
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}
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QList<QGraphicsItem *> colliding = scene()->items(event->scenePos());
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for (int i = 0; i < colliding.size(); ++i)
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if (qgraphicsitem_cast<CardItem *>(colliding[i])) {
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event->ignore();
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return;
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}
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event->accept();
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if (event->button() == Qt::RightButton)
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player->client->deleteArrow(id);
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}
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ArrowDragItem::ArrowDragItem(CardItem *_startItem, const QColor &_color)
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: ArrowItem(static_cast<CardZone *>(_startItem->parentItem())->getPlayer(), -1, _startItem, 0, _color)
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{
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}
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void ArrowDragItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
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{
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QPointF endPos = event->scenePos();
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QList<QGraphicsItem *> colliding = scene()->items(endPos);
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CardItem *cursorItem = 0;
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for (int i = colliding.size() - 1; i >= 0; i--)
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if ((cursorItem = qgraphicsitem_cast<CardItem *>(colliding.at(i))))
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break;
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if (!cursorItem) {
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fullColor = false;
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targetItem = 0;
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updatePath(endPos);
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} else {
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fullColor = true;
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targetItem = cursorItem;
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updatePath();
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}
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update();
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}
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void ArrowDragItem::mouseReleaseEvent(QGraphicsSceneMouseEvent * /*event*/)
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{
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if (targetItem && (targetItem != startItem)) {
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CardZone *startZone = static_cast<CardZone *>(startItem->parentItem());
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CardZone *targetZone = static_cast<CardZone *>(targetItem->parentItem());
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player->client->createArrow(
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startZone->getPlayer()->getId(),
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startZone->getName(),
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startItem->getId(),
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targetZone->getPlayer()->getId(),
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targetZone->getName(),
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targetItem->getId(),
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color
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);
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}
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deleteLater();
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}
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