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Diffstat (limited to 'examples/widgets/animation/stickman/node.cpp')
-rw-r--r-- | examples/widgets/animation/stickman/node.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/examples/widgets/animation/stickman/node.cpp b/examples/widgets/animation/stickman/node.cpp new file mode 100644 index 0000000000..2de34b379c --- /dev/null +++ b/examples/widgets/animation/stickman/node.cpp @@ -0,0 +1,92 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "node.h" +#include "stickman.h" + +#include <QRectF> +#include <QPainter> +#include <QGraphicsSceneMouseEvent> + +Node::Node(const QPointF &pos, QGraphicsItem *parent) + : QGraphicsObject(parent), m_dragging(false) +{ + setPos(pos); + setFlag(QGraphicsItem::ItemSendsGeometryChanges); +} + +Node::~Node() +{ +} + +QRectF Node::boundingRect() const +{ + return QRectF(-6.0, -6.0, 12.0, 12.0); +} + +void Node::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + painter->setPen(Qt::white); + painter->drawEllipse(QPointF(0.0, 0.0), 5.0, 5.0); +} + +QVariant Node::itemChange(GraphicsItemChange change, const QVariant &value) +{ + if (change == QGraphicsItem::ItemPositionChange) + emit positionChanged(); + + return QGraphicsObject::itemChange(change, value); +} + +void Node::mousePressEvent(QGraphicsSceneMouseEvent *) +{ + m_dragging = true; +} + +void Node::mouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + if (m_dragging) + setPos(mapToParent(event->pos())); +} + +void Node::mouseReleaseEvent(QGraphicsSceneMouseEvent *) +{ + m_dragging = false; +} |