qt5base-lts/examples/widgets/animation/sub-attaq/submarine_p.h
Sergio Ahumada 58e2b9c01b examples: Mark ctor's as explicit
Make C++ class constructors that can be used with only one
required argument 'explicit' to minimize wrong use of the class.

Change-Id: Ida9f9c2f0c8608c35b0137b2512a6747afd69515
Reviewed-by: Mitch Curtis <mitch.curtis@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-09-17 22:14:25 +02:00

138 lines
4.6 KiB
C++

/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the examples of the Qt Toolkit.
**
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#ifndef SUBMARINE_P_H
#define SUBMARINE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
//Own
#include "animationmanager.h"
#include "submarine.h"
#include "qanimationstate.h"
//Qt
#include <QtCore/QPropertyAnimation>
#include <QtWidgets/QGraphicsScene>
//This state is describing when the boat is moving right
class MovementState : public QAnimationState
{
Q_OBJECT
public:
explicit MovementState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
{
movementAnimation = new QPropertyAnimation(submarine, "pos");
connect(movementAnimation,SIGNAL(valueChanged(const QVariant &)),this,SLOT(onAnimationMovementValueChanged(const QVariant &)));
setAnimation(movementAnimation);
AnimationManager::self()->registerAnimation(movementAnimation);
this->submarine = submarine;
}
protected slots:
void onAnimationMovementValueChanged(const QVariant &)
{
if (qrand() % 200 + 1 == 3)
submarine->launchTorpedo(qrand() % 3 + 1);
}
protected:
void onEntry(QEvent *e)
{
if (submarine->currentDirection() == SubMarine::Left) {
movementAnimation->setEndValue(QPointF(0,submarine->y()));
movementAnimation->setDuration(submarine->x()/submarine->currentSpeed()*12);
}
else /*if (submarine->currentDirection() == SubMarine::Right)*/ {
movementAnimation->setEndValue(QPointF(submarine->scene()->width()-submarine->size().width(),submarine->y()));
movementAnimation->setDuration((submarine->scene()->width()-submarine->size().width()-submarine->x())/submarine->currentSpeed()*12);
}
QAnimationState::onEntry(e);
}
private:
SubMarine *submarine;
QPropertyAnimation *movementAnimation;
};
//This state is describing when the boat is moving right
class ReturnState : public QAnimationState
{
public:
explicit ReturnState(SubMarine *submarine, QState *parent = 0) : QAnimationState(parent)
{
returnAnimation = new QPropertyAnimation(submarine->rotation(), "angle");
returnAnimation->setDuration(500);
AnimationManager::self()->registerAnimation(returnAnimation);
setAnimation(returnAnimation);
this->submarine = submarine;
}
protected:
void onEntry(QEvent *e)
{
returnAnimation->stop();
returnAnimation->setEndValue(submarine->currentDirection() == SubMarine::Right ? 360. : 180.);
QAnimationState::onEntry(e);
}
void onExit(QEvent *e)
{
submarine->currentDirection() == SubMarine::Right ? submarine->setCurrentDirection(SubMarine::Left) : submarine->setCurrentDirection(SubMarine::Right);
QAnimationState::onExit(e);
}
private:
SubMarine *submarine;
QPropertyAnimation *returnAnimation;
};
#endif // SUBMARINE_P_H