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Diffstat (limited to 'kscreensaver/kdesavers/pendulum.h')
| -rw-r--r-- | kscreensaver/kdesavers/pendulum.h | 391 |
1 files changed, 0 insertions, 391 deletions
diff --git a/kscreensaver/kdesavers/pendulum.h b/kscreensaver/kdesavers/pendulum.h deleted file mode 100644 index 05998d9f..00000000 --- a/kscreensaver/kdesavers/pendulum.h +++ /dev/null @@ -1,391 +0,0 @@ -//============================================================================ -// -// KPendulum screen saver for KDE -// $Id$ -// Copyright (C) 2004 Georg Drenkhahn -// -// This file is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License version 2 as published by the -// Free Software Foundation. -// -//============================================================================ - -#ifndef __PENDULUM_H__ -#define __PENDULUM_H__ - -// STL headers -#include <valarray> -// TQt headers -#include <tqwidget.h> -#include <tqtimer.h> -#include <tqgl.h> -// GL headers -#include <GL/glu.h> -#include <GL/gl.h> -// KDE headers -#include <kscreensaver.h> - -#include "vec3.h" -#include "rkodesolver.h" - -// KPendulumSetupUi -#include "pendulumcfg.h" - -//-------------------------------------------------------------------- - -/** @brief ODE solver for the Pendulum equations */ -class PendulumOdeSolver : public RkOdeSolver<double> -{ - public: - /** @brief Constuctor for the RK solver of the pendulum equation of motion - * @param t initial time in seconds - * @param dt initial time increment in seconds, just a hint for solver - * @param y generalized coordinates of pendulum system - * @param eps relative precision - * @param m1 mass of upper pendulum - * @param m2 mass of lower pendulum - * @param l1 length of upper pendulum - * @param l2 length of lower pendulum - * @param g gravitational constant */ - PendulumOdeSolver( - const double &t, - const double &dt, - std::valarray<double> &y, - const double &eps, - const double &m1, - const double &m2, - const double &l1, - const double &l2, - const double &g - ); - - protected: - /** @brief ODE function for the pendulum equation of motion system - * @param x time - * @param y generalized coordinates of pendulum system - * @return derivation dy/dx */ - std::valarray<double> - f(const double &x, const std::valarray<double> &y) const; - - private: - /** These private variables contain constants for faster numeric calculation. - * They are derived from the constructor arguments m1,m2,l1,l2,g. */ - const double A, B1, B, C, D, E, M; -}; - - -//-------------------------------------------------------------------- - -/** @brief GL widget class for the KPendulum screen saver - * - * Class implements TQGLWidget to display the KPendulum screen saver. */ -class PendulumGLWidget : public TQGLWidget -{ - Q_OBJECT - - - public: - /** @brief Constructor of KPendulum's GL widget - * @param parent parent widget, passed to TQGLWidget's constructor - * @param name name of widget, passed to TQGLWidget's constructor */ - PendulumGLWidget(TQWidget* parent=0, const char* name=0); - /** @brief Destructor of KPendulum's GL widget */ - ~PendulumGLWidget(void); - - /** @brief Set phi angle of viewpoint - * @param phi angle in sterad */ - void setEyePhi(double phi); - /** @brief Set angles of pendulum configuration - * @param q1 angle of 1. pendulum in sterad - * @param q2 angle of 2. pendulum in sterad */ - void setAngles(const double& q1, const double& q2); - /** @brief Set masses of pendulum configuration - * @param m1 mass of 1. pendulum - * @param m2 mass of 2. pendulum */ - void setMasses(const double& m1, const double& m2); - /** @brief Set lengths of pendulum configuration - * @param l1 length of 1. pendulum - * @param l2 length of 2. pendulum */ - void setLengths(const double& l1, const double& l2); - - /* accessors for colour settings */ - - /** @brief set color of the bars - * @param c color */ - void setBarColor(const TQColor& c); - /** @brief get color of the bars - * @return color */ - inline TQColor barColor(void) const {return m_barColor;} - /** @brief set color of mass 1 - * @param c color */ - void setM1Color(const TQColor& c); - /** @brief get color of mass 1 - * @return color */ - inline TQColor m1Color(void) const {return m_m1Color;} - /** @brief set color of mass 2 - * @param c color */ - void setM2Color(const TQColor& c); - /** @brief get color of mass 2 - * @return color */ - inline TQColor m2Color(void) const {return m_m2Color;} - - protected: - /** paint the GL view */ - virtual void paintGL(); - /** resize the gl view */ - virtual void resizeGL(int w, int h); - /** setup the GL enviroment */ - virtual void initializeGL(); - - private: // Private attributes - /** Eye position distance from coordinate zero point */ - GLfloat eyeR; - /** Eye position theta angle from z axis in sterad */ - double eyeTheta; - /** Eye position phi angle (longitude) in sterad */ - double eyePhi; - /** Light position distance from coordinate zero point */ - GLfloat lightR; - /** Light position theta angle from z axis in sterad */ - double lightTheta; - /** Light position phi angle (longitude) in sterad */ - double lightPhi; - - /** 1. pendulum's angle, degree */ - GLfloat ang1; - /** 2. pendulum's angle, degree */ - GLfloat ang2; - - /** 1. pendulum's square root of mass */ - GLfloat sqrtm1; - /** 2. pendulum's square root of mass */ - GLfloat sqrtm2; - - /** 1. pendulum's length */ - GLfloat l1; - /** 2. pendulum's length */ - GLfloat l2; - - /** Pointer to a quadric object used in the rendering function paintGL() */ - GLUquadricObj* const quadM1; - - /** color of the pendulum bars */ - TQColor m_barColor; - /** color of the 1. mass */ - TQColor m_m1Color; - /** color of the 2. mass */ - TQColor m_m2Color; -}; - -//-------------------------------------------------------------------- - -/** @brief Main class of the KPendulum screen saver - * - * This class implements KScreenSaver for the KPendulum screen saver. */ -class KPendulumSaver : public KScreenSaver -{ - Q_OBJECT - - - public: - /** @brief Constructor of the KPendulum screen saver object - * @param drawable Id of the window in which the screen saver is drawed - * - * Initial settings are read from disk, the GL widget is set up and displayed - * and the eq. of motion solver is started. */ - KPendulumSaver(WId drawable); - /** @brief Destructor of the KPendulum screen saver object - * - * Only KPendulumSaver::solver is destoyed. */ - ~KPendulumSaver(); - /** read the saved settings from disk */ - void readSettings(); - /** init physical quantities, set up the GL area and (re)start the ode - * solver. Called if new parameters are specified in the setup dialog and at - * startup. */ - void initData(); - - /* accessors for PendulumGLWidget member variables */ - - /** Set the displayed bar color of the pendulum */ - void setBarColor(const TQColor& c); - /** Get the displayed bar color of the pendulum */ - TQColor barColor(void) const; - - static const TQColor barColorDefault; - - /** Set the displayed color of the 1. pendulum mass */ - void setM1Color(const TQColor& c); - /** Get the displayed color of the 1. pendulum mass */ - TQColor m1Color(void) const; - - static const TQColor m1ColorDefault; - - /** Set the displayed color of the 2. pendulum mass */ - void setM2Color(const TQColor& c); - /** Get the displayed color of the 2. pendulum mass */ - TQColor m2Color(void) const; - - static const TQColor m2ColorDefault; - - /* accessors for own member variables */ - - /** Set the mass ratio of the pendulum system. @sa - * KPendulumSaver::m_massRatio */ - void setMassRatio(const double& massRatio); - /** Get the mass ratio of the pendulum system. @sa - * KPendulumSaver::m_massRatio */ - inline double massRatio(void) const {return m_massRatio;} - - // lower, upper limits (inclusive) and default values for the setup - // parameters - static const double massRatioLimitUpper; - static const double massRatioLimitLower; - static const double massRatioDefault; - - /** Set the length ratio of the pendulum system. @sa - * KPendulumSaver::m_lengthRatio */ - void setLengthRatio(const double& lengthRatio); - /** Get the length ratio of the pendulum system. @sa - * KPendulumSaver::m_lengthRatio */ - inline double lengthRatio(void) const {return m_lengthRatio;} - - static const double lengthRatioLimitLower; - static const double lengthRatioLimitUpper; - static const double lengthRatioDefault; - - /** Set the gravitational constant. @sa KPendulumSaver::m_g */ - void setG(const double& g); - /** Get the gravitational constant. @sa KPendulumSaver::m_g */ - inline double g(void) const {return m_g;} - - static const double gLimitLower; - static const double gLimitUpper; - static const double gDefault; - - /** Set the total energy. @sa KPendulumSaver::m_E */ - void setE(const double& E); - /** Get the total energy. @sa KPendulumSaver::m_E */ - inline double E(void) const {return m_E;} - - static const double ELimitLower; - static const double ELimitUpper; - static const double EDefault; - - /** Set the time interval for the periodic perspective change. @sa - * KPendulumSaver::m_persChangeInterval */ - void setPersChangeInterval(const unsigned int& persChangeInterval); - /** Get the time interval for the periodic perspective change. @sa - * KPendulumSaver::m_persChangeInterval */ - inline unsigned int persChangeInterval(void) const - {return m_persChangeInterval;} - - static const unsigned int persChangeIntervalLimitLower = 5; - static const unsigned int persChangeIntervalLimitUpper = 600; - static const unsigned int persChangeIntervalDefault = 15; - - public slots: - /** slot is called if integration should proceed by ::deltaT */ - void doTimeStep(); - /** slot is called if setup dialog changes in size and the GL are should be - * adjusted */ - void resizeGlArea(TQResizeEvent* e); - - private: - /** The ode solver which is used to integrate the equations of motion */ - PendulumOdeSolver* solver; - /** Gl widget of simulation */ - PendulumGLWidget* glArea; - /** Timer for the real time integration of the eqs. of motion */ - TQTimer* timer; - - /** Time step size for the integration in milliseconds. 20 ms corresponds to - * a frame rate of 50 fps. */ - static const unsigned int deltaT = 20; - static const double eyePhiDefault; - - // saved settings - - /** Mass ratio m2/(m1+m2) of the pendulum masses. Value is determined by the - * setup dialog. Variable is accessed by setMassRatio() and massRatio(). */ - double m_massRatio; - /** Length ratio l2/(l1+l2) of the pendulums. Value is determined by the - * setup dialog. Variable is accessed by setLengthRatio() and - * lengthRatio(). */ - double m_lengthRatio; - /** Gravitational constant (in arbitrary units). Value is determined by the - * setup dialog. Variable is accessed by setG() and g(). */ - double m_g; - /** Total energy of the system in units of the maximum possible potential - * energy. Value is determined by the setup dialog. Variable is accessed by - * setE() and E(). */ - double m_E; - /** Time interval after which a new perspective changed happens. Value is - * determined by the setup dialog. Variable is accessed by - * setPersChangeInterval() and persChangeInterval(). */ - unsigned int m_persChangeInterval; -}; - -//-------------------------------------------------------------------- - -/** @brief KPendulum screen saver setup dialog. - * - * This class handles the KPendulum screen saver setup dialog. */ -class KPendulumSetup : public KPendulumSetupUi -{ - Q_OBJECT - - - public: - /** @brief Constructor for the KPendulum screen saver setup dialog - * @param parent Pointer to the parent widget, passed to KPendulumSetupUi - * @param name Widget name - * - * The dialog box is set up and the screen saver object KPendulumSetup::saver - * is instantiated. */ - KPendulumSetup(TQWidget* parent = 0, const char* name = 0); - /** @brief Destructor of the KPendulum screen saver setup dialog - * - * Only KPendulumSetup::saver is deleted. */ - ~KPendulumSetup(void); - - public slots: - /** slot for the "OK" button: save settings and exit */ - void okButtonClickedSlot(void); - /** slot for the "About" button: show the About dialog */ - void aboutButtonClickedSlot(void); - - /** slot is called if the mass ratio edit field looses its focus. If the - * input is acceptable KPendulumSaver::setMassRatio() is called. */ - void mEditLostFocusSlot(void); - /** slot is called if the length ratio edit field looses its focus. If the - * input is acceptable KPendulumSaver::setLengthRatio() is called. */ - void lEditLostFocusSlot(void); - /** slot is called if the gravitational constant edit field looses its focus. - * If the input is acceptable KPendulumSaver::setG() is called. */ - void gEditLostFocusSlot(void); - /** slot is called if the energy edit field looses its focus. If the input - * is acceptable KPendulumSaver::setE() is called. */ - void eEditLostFocusSlot(void); - /** slot is called if the perspective change interval spin box changed. If - * the input is acceptable KPendulumSaver::setPersChangeInterval() is - * called. */ - void persChangeEnteredSlot(int t); - - /** slot is called if the bar color button was clicked. A color dialog is - * opened and the result is given to KPendulumSaver::setBarColor(). */ - void barColorButtonClickedSlot(void); - /** slot is called if the mass 1 color button was clicked. A color dialog is - * opened and the result is given to KPendulumSaver::setM1Color(). */ - void m1ColorButtonClickedSlot(void); - /** slot is called if the mass 2 color button was clicked. A color dialog is - * opened and the result is given to KPendulumSaver::setM2Color(). */ - void m2ColorButtonClickedSlot(void); - - private: - /** Pointer to the screen saver object. Its member KPendulumSaver::glArea is - * displayed in the preview area */ - KPendulumSaver* saver; -}; - -#endif |