diff -r 000000000000 -r 1918ee327afb examples/graphicsview/portedasteroids/animateditem.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/graphicsview/portedasteroids/animateditem.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,95 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "animateditem.h" + +#include +#include + +AnimatedPixmapItem::AnimatedPixmapItem(const QList &animation, + QGraphicsScene *scene) + : QGraphicsItem(0, scene), currentFrame(0), vx(0), vy(0) +{ + for (int i = 0; i < animation.size(); ++i) { + QPixmap pixmap = animation.at(i); + Frame frame; + frame.pixmap = pixmap; + frame.shape = QPainterPath(); + frame.boundingRect = pixmap.rect(); + frames << frame; + } +} + +void AnimatedPixmapItem::setFrame(int frame) +{ + if (!frames.isEmpty()) { + prepareGeometryChange(); + currentFrame = frame % frames.size(); + } +} + +void AnimatedPixmapItem::advance(int phase) +{ + if (phase == 1) + moveBy(vx, vy); +} + +QRectF AnimatedPixmapItem::boundingRect() const +{ + return frames.at(currentFrame).boundingRect; +} + +QPainterPath AnimatedPixmapItem::shape() const +{ + const Frame &f = frames.at(currentFrame); + if (f.shape.isEmpty()) { + QPainterPath path; + path.addRegion(f.pixmap.createHeuristicMask()); + const_cast(f).shape = path; + } + return f.shape; +} + +void AnimatedPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, + QWidget * /*widget*/) +{ + painter->drawPixmap(0, 0, frames.at(currentFrame).pixmap); +}