kscreensaver/kdesavers/fountain.h

   1 //-----------------------------------------------------------------------------
   2 //
   3 // kfountain - Partical Fountain Screen Saver for KDE 2
   4 //
   5 // Copyright (c)  Ian Reinhart Geiser 2001
   6 //
   7 /////
   8 //NOTE:
   9 // The base particle engine did not come from me, it was designed by Jeff Molofee <nehe@connect.ab.ca>
  10 // I did some extensive modifications to make it work with QT's OpenGL but the base principal is about
  11 // the same.
  12 ////
  13
  14 #ifndef __FOUNTAIN_H__
  15 #define __FOUNTAIN_H__
  16
  17 #include <qdialog.h>
  18 #include <qgl.h>
  19 #ifdef Q_WS_MACX
  20 #include <OpenGL/gl.h>
  21 #include <OpenGL/glu.h>
  22 #else
  23 #include <GL/glu.h>
  24 #include <GL/gl.h>
  25 #endif
  26 #include <kscreensaver.h>
  27 #include <qtimer.h>
  28 #include <qimage.h>
  29 #include "ui_fountaincfg.h"
  30 #include <kinstance.h>
  31 #include <qfile.h>
  32 #include <qtextstream.h>
  33
  34 #define MAX_PARTICLES   1000
  35
  36
  37 class Fountain : public QGLWidget
  38 {
  39 Q_OBJECT
  40         class particles                                         // Create A Structure For Particle
  41         {
  42         public:
  43                 bool    active;                                 // Active (Yes/No)
  44                 float   life;                                   // Particle Life
  45                 float   fade;                                   // Fade Speed
  46                 float   r;                                      // Red Value
  47                 float   g;                                      // Green Value
  48                 float   b;                                      // Blue Value
  49                 float   x;                                      // X Position
  50                 float   y;                                      // Y Position
  51                 float   z;                                      // Z Position
  52                 float   xi;                                     // X Direction
  53                 float   yi;                                     // Y Direction
  54                 float   zi;                                     // Z Direction
  55                 float   xg;                                     // X Gravity
  56                 float   yg;                                     // Y Gravity
  57                 float   zg;                                     // Z Gravity
  58                 float   size;                                   // Particle Size
  59         };
  60
  61 public:
  62         Fountain( QWidget * parent=0, const char * name=0 );
  63         ~Fountain();
  64         void setSize( float newSize );
  65         void setStars( bool doStars );
  66 protected:
  67         /** paint the GL view */
  68         void paintGL ();
  69         /** resize the gl view */
  70         void resizeGL ( int w, int h );
  71         /** setup the GL enviroment */
  72         void initializeGL ();
  73
  74
  75 private:
  76         /** load the partical file */
  77         bool loadParticle();
  78
  79         particles particle[MAX_PARTICLES];
  80
  81
  82         bool    rainbow;                                        // Rainbow Mode?
  83         bool    sp;                                             // Spacebar Pressed?
  84         bool    rp;                                             // Enter Key Pressed?
  85
  86         float   slowdown;                                       // Slow Down Particles
  87         float   xspeed;                                         // Base X Speed (To Allow Keyboard Direction Of Tail)
  88         float   yspeed;                                         // Base Y Speed (To Allow Keyboard Direction Of Tail)
  89         float   zoom;                                   // Used To Zoom Out
  90         float   size;
  91         float   stars;
  92         GLuint  loop;                                           // Misc Loop Variable
  93         GLuint  col;                                            // Current Color Selection
  94         GLuint  delay;                                          // Rainbow Effect Delay
  95         GLuint  texture[1];
  96         QImage  tex;
  97         float   index;
  98         float   transIndex;
  99         GLfloat scale;
 100         GLUquadricObj *obj;
 101 };
 102
 103 class KFountainSaver : public KScreenSaver
 104 {
 105 Q_OBJECT
 106 public:
 107         KFountainSaver( WId drawable );
 108         virtual ~KFountainSaver();
 109         void readSettings();
 110 public slots:
 111         void blank();
 112         void updateSize(int newSize);
 113         void doStars(bool starState);
 114 //      void loadTextures(bool textures);
 115 private:
 116         Fountain *fountain;
 117         QTimer  *timer;
 118 };
 119
 120 class KFountainSetup : public QDialog, public Ui::SetupUi
 121 {
 122         Q_OBJECT
 123 public:
 124         KFountainSetup( QWidget *parent =0L);
 125
 126 protected:
 127         void readSettings();
 128
 129 private slots:
 130         void slotOkPressed();
 131         void aboutPressed();
 132 private:
 133         KFountainSaver *saver;
 134         float   size;
 135         float   stars;
 136 };
 137
 138 #endif
 139
 140