(C++) TestBouncingRectsWidget

TestBouncingRectsWidget is a tool to test the BouncingRectsWidget class.

Downloads

Technical facts

Operating system(s) or programming environment(s)

Lubuntu 15.04 (vivid)

IDE(s):

Qt Creator 3.1.1

Project type:

Console application

C++ standard:

C++98

Compiler(s):

G++ 4.9.2

Libraries used:

STL: GNU ISO C++ Library, version 4.9.2

Qt project file: ./ToolTestBouncingRectsWidget/ToolTestBouncingRectsWidgetDesktop.pro


include(../../DesktopApplication.pri)

include(../../Libraries/GeneralConsole.pri)

include(../../Libraries/GeneralDesktop.pri)



include(../../Tools/ToolTestBouncingRectsWidget/ToolTestBouncingRectsWidgetDesktop.pri)



SOURCES += qtmain.cpp

./ToolTestBouncingRectsWidget/ToolTestBouncingRectsWidgetConsole.pri


INCLUDEPATH += ../../Tools/ToolTestBouncingRectsWidget

./ToolTestBouncingRectsWidget/ToolTestBouncingRectsWidgetDesktop.pri


include(../../Tools/ToolTestBouncingRectsWidget/ToolTestBouncingRectsWidgetConsole.pri)



SOURCES += \

    ../../Tools/ToolTestBouncingRectsWidget/qtbouncingrect.cpp \

    ../../Tools/ToolTestBouncingRectsWidget/qtbouncingrectswidget.cpp \

    ../../Tools/ToolTestBouncingRectsWidget/qttooltestbouncingrectswidgetmaindialog.cpp



HEADERS += \

    ../../Tools/ToolTestBouncingRectsWidget/qtbouncingrect.h \

    ../../Tools/ToolTestBouncingRectsWidget/qtbouncingrectswidget.h \

    ../../Tools/ToolTestBouncingRectsWidget/qttooltestbouncingrectswidgetmaindialog.h



FORMS += \

    ../../Tools/ToolTestBouncingRectsWidget/qttooltestbouncingrectswidgetmaindialog.ui

./ToolTestBouncingRectsWidget/qtbouncingrect.h


#ifndef QTBOUNCINGRECT_H

#define QTBOUNCINGRECT_H



#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include <QGraphicsItem>

#pragma GCC diagnostic pop



struct QGraphicsScene;



struct QtBouncingRect : public QGraphicsItem

{

  QtBouncingRect(QGraphicsItem *parent, QGraphicsScene *scene);

  QtBouncingRect(const QtBouncingRect&) = delete;

  QtBouncingRect& operator=(const QtBouncingRect&) = delete;



  ///Make the balls move

  void advance(int phase);



  ///Thanks compiler for reminding me to add this member function!

  QRectF boundingRect() const;



  ///Thanks compiler for reminding me to add this member function!

  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);





  private:

  ///Use simplified physics in this example

  ///Horizontal speed (delta x)

  double m_dx;



  ///Use simplified physics in this example

  ///Vertical speed (delta y)

  double m_dy;



  ///The scene this class is in

  QGraphicsScene * const m_scene;

};



#endif // QTBOUNCINGRECT_H

./ToolTestBouncingRectsWidget/qtbouncingrect.cpp


#include <cassert>

#include <cmath>



#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include <QGraphicsItem>

#include <QGraphicsScene>

#include <QList>

#include <QPainter>

#include "qtbouncingrect.h"

#pragma GCC diagnostic pop



QtBouncingRect::QtBouncingRect(QGraphicsItem *parent, QGraphicsScene *scene)

 : QGraphicsItem(parent),

   m_dx(1.0), m_dy(1.0), m_scene(scene)

{

  m_scene->addItem(this);

  assert(m_scene && "An initialized QGraphicsScene must be supplied");

}



void QtBouncingRect::advance(int /* phase */)

{

  if (x() + m_dx + (boundingRect().width() * 0.5) > m_scene->width()) m_dx = -std::abs(m_dx);

  else if (x() + m_dx - (boundingRect().width() * 0.5) < 0.0) m_dx = std::abs(m_dx);

  if (y() + m_dy + (boundingRect().height() * 0.5) > m_scene->height()) m_dy = -std::abs(m_dy);

  else if (y() + m_dy - (boundingRect().width() * 0.5) < 0.0) m_dy = std::abs(m_dy);

  this->setPos(x() + m_dx, y() + m_dy);



  //Respond to collision with other item

  const QList<QGraphicsItem *> others = collidingItems();

  if (others.isEmpty()) return;

  const QGraphicsItem * const other = others[0];

  if (this->x() < other->x()) m_dx = -std::abs(m_dx);

  else if (this->x() > other->x()) m_dx =  std::abs(m_dx);

  if (this->y() < other->y()) m_dy = -std::abs(m_dy);

  else if (this->y() > other->y()) m_dy =  std::abs(m_dy);

  this->setPos(x() + m_dx, y() + m_dy);

  this->setPos(x() + m_dx, y() + m_dy);



}



QRectF QtBouncingRect::boundingRect() const

{

  return QRectF(-16.0,-16.0,32.0,32.0);

}



void QtBouncingRect::paint(

  QPainter *painter,

  const QStyleOptionGraphicsItem * /* option */,

  QWidget * /* widget */)

{

  painter->drawRect(this->boundingRect());

}

./ToolTestBouncingRectsWidget/qtbouncingrectswidget.h


#ifndef QTBOUNCINGRECTSWIDGET_H

#define QTBOUNCINGRECTSWIDGET_H



#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include <QGraphicsView>

#pragma GCC diagnostic pop



struct QGraphicsScene;



struct QtBouncingRectsWidget : public QGraphicsView

{

  QtBouncingRectsWidget(QWidget *parent = 0);

  QtBouncingRectsWidget(const QtBouncingRectsWidget&) = delete;

  QtBouncingRectsWidget& operator=(const QtBouncingRectsWidget&) = delete;





  protected:

  void resizeEvent(QResizeEvent *event);



  private:

  QGraphicsScene * const m_scene;

};



#endif // QTBOUNCINGRECTSWIDGET_H

./ToolTestBouncingRectsWidget/qtbouncingrectswidget.cpp


#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include <QTimer>

#include <QGraphicsScene>

#include "qtbouncingrect.h"

#include "qtbouncingrectswidget.h"

#pragma GCC diagnostic pop



QtBouncingRectsWidget::QtBouncingRectsWidget(QWidget *parent)

  : QGraphicsView(parent),

    m_scene(new QGraphicsScene(this->rect(),this))

{

  this->setScene(m_scene);



  for (int i=0; i!=3; ++i)

  {

    QtBouncingRect * const ball = new QtBouncingRect(0,m_scene);

    ball->setPos(

      static_cast<double>((i - 1) * 32) + (0.5 * static_cast<double>(width())),

      static_cast<double>((i - 1) * 32) + (0.5 * static_cast<double>(height())));

  }



  {

    QTimer * const timer = new QTimer(this);

    QObject::connect(timer,SIGNAL(timeout()),m_scene,SLOT(advance()));

    timer->setInterval(20);

    timer->start();

  }



  //Turn off the scrollbars, as they look ugly

  this->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

  this->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

}





void QtBouncingRectsWidget::resizeEvent(QResizeEvent *)

{

  m_scene->setSceneRect(this->rect());

}

./ToolTestBouncingRectsWidget/qtmain.cpp


#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include <QApplication>

#include "qttooltestbouncingrectswidgetmaindialog.h"

#pragma GCC diagnostic pop



int main(int argc, char *argv[])

{

  QApplication a(argc, argv);

  QtToolTestBouncingRectsWidgetMainDialog w;

  w.show();

  return a.exec();

}

./ToolTestBouncingRectsWidget/qttooltestbouncingrectswidgetmaindialog.h


#ifndef QTTOOLTESTBOUNCINGRECTSWIDGETMAINDIALOG_H

#define QTTOOLTESTBOUNCINGRECTSWIDGETMAINDIALOG_H



#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include "qthideandshowdialog.h"

#pragma GCC diagnostic pop



namespace Ui {

class QtToolTestBouncingRectsWidgetMainDialog;

}



class QtToolTestBouncingRectsWidgetMainDialog : public ribi::QtHideAndShowDialog

{

    Q_OBJECT

    

public:

    explicit QtToolTestBouncingRectsWidgetMainDialog(QWidget *parent = 0);

    QtToolTestBouncingRectsWidgetMainDialog(const QtToolTestBouncingRectsWidgetMainDialog&) = delete;

    QtToolTestBouncingRectsWidgetMainDialog& operator=(const QtToolTestBouncingRectsWidgetMainDialog&) = delete;

    ~QtToolTestBouncingRectsWidgetMainDialog() noexcept;

    

private:

    Ui::QtToolTestBouncingRectsWidgetMainDialog *ui;

};



#endif // QTTOOLTESTBOUNCINGRECTSWIDGETMAINDIALOG_H

./ToolTestBouncingRectsWidget/qttooltestbouncingrectswidgetmaindialog.cpp


#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Weffc++"

#include "qtbouncingrectswidget.h"

#include "qttooltestbouncingrectswidgetmaindialog.h"

#include "ui_qttooltestbouncingrectswidgetmaindialog.h"

#pragma GCC diagnostic pop



QtToolTestBouncingRectsWidgetMainDialog::QtToolTestBouncingRectsWidgetMainDialog(QWidget *parent) :

  QtHideAndShowDialog(parent),

  ui(new Ui::QtToolTestBouncingRectsWidgetMainDialog)

{

  ui->setupUi(this);

  ui->layout->addWidget(new QtBouncingRectsWidget(this));

}



QtToolTestBouncingRectsWidgetMainDialog::~QtToolTestBouncingRectsWidgetMainDialog() noexcept

{

  delete ui;

}

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.

This page has been created by the tool CodeToHtml