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Diffstat (limited to 'examples/multitouch/pinchzoom/mouse.cpp')
| -rw-r--r-- | examples/multitouch/pinchzoom/mouse.cpp | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/examples/multitouch/pinchzoom/mouse.cpp b/examples/multitouch/pinchzoom/mouse.cpp deleted file mode 100644 index 82617fe..0000000 --- a/examples/multitouch/pinchzoom/mouse.cpp +++ /dev/null @@ -1,199 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 "mouse.h" - -#include <QGraphicsScene> -#include <QPainter> -#include <QStyleOption> - -#include <math.h> - -static const double Pi = 3.14159265358979323846264338327950288419717; -static double TwoPi = 2.0 * Pi; - -static qreal normalizeAngle(qreal angle) -{ - while (angle < 0) - angle += TwoPi; - while (angle > TwoPi) - angle -= TwoPi; - return angle; -} - -//! [0] -Mouse::Mouse() - : angle(0), speed(0), mouseEyeDirection(0), - color(qrand() % 256, qrand() % 256, qrand() % 256) -{ - rotate(qrand() % (360 * 16)); - startTimer(1000 / 33); -} -//! [0] - -//! [1] -QRectF Mouse::boundingRect() const -{ - qreal adjust = 0.5; - return QRectF(-18 - adjust, -22 - adjust, - 36 + adjust, 60 + adjust); -} -//! [1] - -//! [2] -QPainterPath Mouse::shape() const -{ - QPainterPath path; - path.addRect(-10, -20, 20, 40); - return path; -} -//! [2] - -//! [3] -void Mouse::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) -{ - // Body - painter->setBrush(color); - painter->drawEllipse(-10, -20, 20, 40); - - // Eyes - painter->setBrush(Qt::white); - painter->drawEllipse(-10, -17, 8, 8); - painter->drawEllipse(2, -17, 8, 8); - - // Nose - painter->setBrush(Qt::black); - painter->drawEllipse(QRectF(-2, -22, 4, 4)); - - // Pupils - painter->drawEllipse(QRectF(-8.0 + mouseEyeDirection, -17, 4, 4)); - painter->drawEllipse(QRectF(4.0 + mouseEyeDirection, -17, 4, 4)); - - // Ears - painter->setBrush(scene()->collidingItems(this).isEmpty() ? Qt::darkYellow : Qt::red); - painter->drawEllipse(-17, -12, 16, 16); - painter->drawEllipse(1, -12, 16, 16); - - // Tail - QPainterPath path(QPointF(0, 20)); - path.cubicTo(-5, 22, -5, 22, 0, 25); - path.cubicTo(5, 27, 5, 32, 0, 30); - path.cubicTo(-5, 32, -5, 42, 0, 35); - painter->setBrush(Qt::NoBrush); - painter->drawPath(path); -} -//! [3] - -//! [4] -void Mouse::timerEvent(QTimerEvent *) -{ -//! [4] - // Don't move too far away -//! [5] - QLineF lineToCenter(QPointF(0, 0), mapFromScene(0, 0)); - if (lineToCenter.length() > 150) { - qreal angleToCenter = ::acos(lineToCenter.dx() / lineToCenter.length()); - if (lineToCenter.dy() < 0) - angleToCenter = TwoPi - angleToCenter; - angleToCenter = normalizeAngle((Pi - angleToCenter) + Pi / 2); - - if (angleToCenter < Pi && angleToCenter > Pi / 4) { - // Rotate left - angle += (angle < -Pi / 2) ? 0.25 : -0.25; - } else if (angleToCenter >= Pi && angleToCenter < (Pi + Pi / 2 + Pi / 4)) { - // Rotate right - angle += (angle < Pi / 2) ? 0.25 : -0.25; - } - } else if (::sin(angle) < 0) { - angle += 0.25; - } else if (::sin(angle) > 0) { - angle -= 0.25; -//! [5] //! [6] - } -//! [6] - - // Try not to crash with any other mice -//! [7] - QList<QGraphicsItem *> dangerMice = scene()->items(QPolygonF() - << mapToScene(0, 0) - << mapToScene(-30, -50) - << mapToScene(30, -50)); - foreach (QGraphicsItem *item, dangerMice) { - if (item == this) - continue; - - QLineF lineToMouse(QPointF(0, 0), mapFromItem(item, 0, 0)); - qreal angleToMouse = ::acos(lineToMouse.dx() / lineToMouse.length()); - if (lineToMouse.dy() < 0) - angleToMouse = TwoPi - angleToMouse; - angleToMouse = normalizeAngle((Pi - angleToMouse) + Pi / 2); - - if (angleToMouse >= 0 && angleToMouse < Pi / 2) { - // Rotate right - angle += 0.5; - } else if (angleToMouse <= TwoPi && angleToMouse > (TwoPi - Pi / 2)) { - // Rotate left - angle -= 0.5; -//! [7] //! [8] - } -//! [8] //! [9] - } -//! [9] - - // Add some random movement -//! [10] - if (dangerMice.size() > 1 && (qrand() % 10) == 0) { - if (qrand() % 1) - angle += (qrand() % 100) / 500.0; - else - angle -= (qrand() % 100) / 500.0; - } -//! [10] - -//! [11] - speed += (-50 + qrand() % 100) / 100.0; - - qreal dx = ::sin(angle) * 10; - mouseEyeDirection = (qAbs(dx / 5) < 1) ? 0 : dx / 5; - - rotate(dx); - setPos(mapToParent(0, -(3 + sin(speed) * 3))); -} -//! [11] |