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-rw-r--r--kscreensaver/kdesavers/lorenz.cpp569
1 files changed, 0 insertions, 569 deletions
diff --git a/kscreensaver/kdesavers/lorenz.cpp b/kscreensaver/kdesavers/lorenz.cpp
deleted file mode 100644
index e4e5f63c..00000000
--- a/kscreensaver/kdesavers/lorenz.cpp
+++ /dev/null
@@ -1,569 +0,0 @@
-//-----------------------------------------------------------------------------
-//
-// Lorenz - Lorenz Attractor screen saver
-// Nicolas Brodu, brodu@kde.org, 2000
-//
-// Portions of code from kblankscrn and khop.
-// See authors there.
-//
-// I release my code as GPL, but see the other headers and the README
-
-#include <math.h>
-#include <stdlib.h>
-
-#include <tqpainter.h>
-#include <tqslider.h>
-#include <tqlayout.h>
-#include <tqcolor.h>
-#include <tqlabel.h>
-
-#include <kapplication.h>
-#include <klocale.h>
-#include <kglobal.h>
-#include <kconfig.h>
-#include <kmessagebox.h>
-
-#include "lorenz.h"
-#include "lorenz.moc"
-
-// libkscreensaver interface
-extern "C"
-{
- KDE_EXPORT const char *kss_applicationName = "klorenz.kss";
- KDE_EXPORT const char *kss_description = I18N_NOOP( "KLorenz" );
- KDE_EXPORT const char *kss_version = "2.2.0";
-
- KDE_EXPORT KScreenSaver *kss_create( WId id )
- {
- return new KLorenzSaver( id );
- }
-
- KDE_EXPORT TQDialog *kss_setup()
- {
- return new KLorenzSetup();
- }
-}
-
-#define MINSPEED 1
-#define MAXSPEED 1500
-#define DEFSPEED 150
-#define MINZROT -180
-#define MAXZROT 180
-#define DEFZROT 104 //100
-#define MINYROT -180
-#define MAXYROT 180
-#define DEFYROT -19 //80
-#define MINXROT -180
-#define MAXXROT 180
-#define DEFXROT 25 //20
-#define MINEPOCH 1
-#define MAXEPOCH 30000
-#define DEFEPOCH 5800
-#define MINCOLOR 1
-#define MAXCOLOR 100
-#define DEFCOLOR 20
-
-//-----------------------------------------------------------------------------
-// dialog to setup screen saver parameters
-//
-KLorenzSetup::KLorenzSetup( TQWidget *parent, const char *name )
- : KDialogBase( parent, name, true, i18n( "Setup Lorenz Attractor" ),
- Ok|Cancel|Default|Help, Ok, true )
-{
- readSettings();
-
- setButtonText( Help, i18n( "A&bout" ) );
- TQWidget *main = makeMainWidget();
-
- TQHBoxLayout *tl = new TQHBoxLayout( main, 0, spacingHint() );
- TQVBoxLayout *tl1 = new TQVBoxLayout;
- tl->addLayout(tl1);
-
- TQLabel *label = new TQLabel( i18n("Speed:"), main );
- tl1->addWidget(label);
-
- sps = new TQSlider(MINSPEED, MAXSPEED, 10, speed, Qt::Horizontal, main);
- sps->setMinimumSize( 120, 20 );
- sps->setTickmarks(TQSlider::Below);
- sps->setTickInterval(150);
- connect( sps, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotSpeed( int ) ) );
- tl1->addWidget(sps);
-
- label = new TQLabel( i18n("Epoch:"), main );
- tl1->addWidget(label);
-
- eps = new TQSlider(MINEPOCH, MAXEPOCH, 100, epoch, Qt::Horizontal, main);
- eps->setMinimumSize( 120, 20 );
- eps->setTickmarks(TQSlider::Below);
- eps->setTickInterval(3000);
- connect( eps, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotEpoch( int ) ) );
- tl1->addWidget(eps);
-
- label = new TQLabel( i18n("Color rate:"), main );
- tl1->addWidget(label);
-
- crs = new TQSlider(MINCOLOR, MAXCOLOR, 5, crate, Qt::Horizontal, main);
- crs->setMinimumSize( 120, 20 );
- crs->setTickmarks(TQSlider::Below);
- crs->setTickInterval(10);
- connect( crs, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotCRate( int ) ) );
- tl1->addWidget(crs);
-
- label = new TQLabel( i18n("Rotation Z:"), main );
- tl1->addWidget(label);
-
- zrs = new TQSlider(MINZROT, MAXZROT, 18, zrot, Qt::Horizontal, main);
- zrs->setMinimumSize( 120, 20 );
- zrs->setTickmarks(TQSlider::Below);
- zrs->setTickInterval(36);
- connect( zrs, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotZRot( int ) ) );
- tl1->addWidget(zrs);
-
- label = new TQLabel( i18n("Rotation Y:"), main );
- tl1->addWidget(label);
-
- yrs = new TQSlider(MINYROT, MAXYROT, 18, yrot, Qt::Horizontal, main);
- yrs->setMinimumSize( 120, 20 );
- yrs->setTickmarks(TQSlider::Below);
- yrs->setTickInterval(36);
- connect( yrs, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotYRot( int ) ) );
- tl1->addWidget(yrs);
-
- label = new TQLabel( i18n("Rotation X:"), main );
- tl1->addWidget(label);
-
- xrs = new TQSlider(MINXROT, MAXXROT, 18, xrot, Qt::Horizontal, main);
- xrs->setMinimumSize( 120, 20 );
- xrs->setTickmarks(TQSlider::Below);
- xrs->setTickInterval(36);
- connect( xrs, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotXRot( int ) ) );
- tl1->addWidget(xrs);
-
- preview = new TQWidget( main );
- preview->setFixedSize( 220, 165 );
- preview->setBackgroundColor( black );
- preview->show(); // otherwise saver does not get correct size
- saver = new KLorenzSaver( preview->winId() );
- tl->addWidget(preview);
-}
-
-KLorenzSetup::~KLorenzSetup()
-{
- delete saver;
-}
-
-// read settings from config file
-void KLorenzSetup::readSettings()
-{
- TDEConfig *config = TDEGlobal::config();
- config->setGroup( "Settings" );
-
- speed = config->readNumEntry( "Speed", DEFSPEED );
- epoch = config->readNumEntry( "Epoch", DEFEPOCH );
- crate = config->readNumEntry( "Color Rate", DEFCOLOR );
- zrot = config->readNumEntry( "ZRot", DEFZROT );
- yrot = config->readNumEntry( "YRot", DEFZROT );
- xrot = config->readNumEntry( "XRot", DEFZROT );
-}
-
-
-void KLorenzSetup::slotSpeed(int num)
-{
- speed = num;
- if (saver) saver->setSpeed(speed);
-}
-
-void KLorenzSetup::slotEpoch(int num)
-{
- epoch = num;
- if (saver) saver->setEpoch(epoch);
-}
-
-void KLorenzSetup::slotCRate(int num)
-{
- crate = num;
- if (saver) saver->setCRate(crate);
-}
-
-void KLorenzSetup::slotZRot(int num)
-{
- zrot = num;
- if (saver) {
- saver->setZRot(zrot);
- saver->updateMatrix();
- saver->newEpoch();
- }
-}
-
-void KLorenzSetup::slotYRot(int num)
-{
- yrot = num;
- if (saver) {
- saver->setYRot(yrot);
- saver->updateMatrix();
- saver->newEpoch();
- }
-}
-
-void KLorenzSetup::slotXRot(int num)
-{
- xrot = num;
- if (saver) {
- saver->setXRot(xrot);
- saver->updateMatrix();
- saver->newEpoch();
- }
-}
-
-void KLorenzSetup::slotHelp()
-{
- KMessageBox::about(this,i18n("Lorenz Attractor screen saver for TDE\n\nCopyright (c) 2000 Nicolas Brodu"));
-}
-
-// Ok pressed - save settings and exit
-void KLorenzSetup::slotOk()
-{
- TDEConfig *config = TDEGlobal::config();
- config->setGroup( "Settings" );
-
- config->writeEntry( "Speed", speed );
- config->writeEntry( "Epoch", epoch );
- config->writeEntry( "Color Rate", crate );
- config->writeEntry( "ZRot", zrot );
- config->writeEntry( "YRot", yrot );
- config->writeEntry( "XRot", xrot );
-
- config->sync();
-
- accept();
-}
-
-void KLorenzSetup::slotDefault()
-{
- speed = DEFSPEED;
- epoch = DEFEPOCH;
- crate = DEFCOLOR;
- zrot = DEFZROT;
- yrot = DEFYROT;
- xrot = DEFXROT;
- if (saver) {
- saver->setSpeed(speed);
- saver->setEpoch(epoch);
- saver->setCRate(crate);
- saver->setZRot(zrot);
- saver->setYRot(yrot);
- saver->setXRot(xrot);
- saver->updateMatrix();
- saver->newEpoch();
- }
- sps->setValue(speed);
- eps->setValue(epoch);
- crs->setValue(crate);
- zrs->setValue(zrot);
- yrs->setValue(yrot);
- xrs->setValue(xrot);
-
-/* // User can cancel, or save defaults?
-
- TDEConfig *config = TDEGlobal::config();
- config->setGroup( "Settings" );
-
- config->writeEntry( "Speed", speed );
- config->writeEntry( "Epoch", epoch );
- config->writeEntry( "Color Rate", crate );
- config->writeEntry( "ZRot", zrot );
- config->writeEntry( "YRot", yrot );
- config->writeEntry( "XRot", xrot );
-
- config->sync();
-*/
-}
-
-//-----------------------------------------------------------------------------
-
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-const double pi = M_PI;
-
-// Homogeneous coordinate transform matrix
-// I initially wrote it for a Java applet, it is inspired from a
-// Matrix class in the JDK.
-// Nicolas Brodu, 1998-2000
-class Matrix3D
-{
- // All coefficients
- double xx, xy, xz, xo;
- double yx, yy, yz, yo;
- double zx, zy, zz, zo;
- // 0, 0, 0, 1 are implicit
-public:
-
- void unit()
- {
- xx=1.0; xy=0.0; xz=0.0; xo=0.0;
- yx=0.0; yy=1.0; yz=0.0; yo=0.0;
- zx=0.0; zy=0.0; zz=1.0; zo=0.0;
- }
-
- Matrix3D ()
- {
- unit();
- }
-
- // Translation
- void translate(double x, double y, double z)
- {
- xo += x;
- yo += y;
- zo += z;
- }
-
- // Rotation, in degrees, around the Y axis
- void rotY(double theta)
- {
- theta *= pi / 180;
- double ct = cos(theta);
- double st = sin(theta);
-
- double Nxx = xx * ct + zx * st;
- double Nxy = xy * ct + zy * st;
- double Nxz = xz * ct + zz * st;
- double Nxo = xo * ct + zo * st;
-
- double Nzx = zx * ct - xx * st;
- double Nzy = zy * ct - xy * st;
- double Nzz = zz * ct - xz * st;
- double Nzo = zo * ct - xo * st;
-
- xo = Nxo;
- xx = Nxx;
- xy = Nxy;
- xz = Nxz;
- zo = Nzo;
- zx = Nzx;
- zy = Nzy;
- zz = Nzz;
- }
-
-
- // Rotation, in degrees, around the X axis
- void rotX(double theta)
- {
- theta *= pi / 180;
- double ct = cos(theta);
- double st = sin(theta);
-
- double Nyx = yx * ct + zx * st;
- double Nyy = yy * ct + zy * st;
- double Nyz = yz * ct + zz * st;
- double Nyo = yo * ct + zo * st;
-
- double Nzx = zx * ct - yx * st;
- double Nzy = zy * ct - yy * st;
- double Nzz = zz * ct - yz * st;
- double Nzo = zo * ct - yo * st;
-
- yo = Nyo;
- yx = Nyx;
- yy = Nyy;
- yz = Nyz;
- zo = Nzo;
- zx = Nzx;
- zy = Nzy;
- zz = Nzz;
- }
-
-
- // Rotation, in degrees, around the Z axis
- void rotZ(double theta)
- {
- theta *= pi / 180;
- double ct = cos(theta);
- double st = sin(theta);
-
- double Nyx = yx * ct + xx * st;
- double Nyy = yy * ct + xy * st;
- double Nyz = yz * ct + xz * st;
- double Nyo = yo * ct + xo * st;
-
- double Nxx = xx * ct - yx * st;
- double Nxy = xy * ct - yy * st;
- double Nxz = xz * ct - yz * st;
- double Nxo = xo * ct - yo * st;
-
- yo = Nyo;
- yx = Nyx;
- yy = Nyy;
- yz = Nyz;
- xo = Nxo;
- xx = Nxx;
- xy = Nxy;
- xz = Nxz;
- }
-
- // Multiply by a projection matrix, with camera f
- // f 0 0 0 x f*x
- // 0 f 0 0 * y = f*y
- // 0 0 1 f z z+f
- // 0 0 0 1 1 1
- // So, it it easy to find the 2D coordinates after the transform
- // u = f*x / (z+f)
- // v = f*y / (z+f)
- void proj(double f)
- {
- xx*=f;
- xy*=f;
- xz*=f;
- xo*=f;
- yx*=f;
- yy*=f;
- yz*=f;
- yo*=f;
- zo+=f;
- }
-
- // Apply the transformation 3D => 2D
- void transform(double x, double y, double z, double &u, double& v, double& w)
- {
- u = x * xx + y * xy + z * xz + xo;
- v = x * yx + y * yy + z * yz + yo;
- w = x * zx + y * zy + z * zz + zo;
- }
-};
-
-KLorenzSaver::KLorenzSaver( WId id ) : KScreenSaver( id )
-{
- readSettings();
-
- // Create a transform matrix with the parameters
- mat = new Matrix3D();
- updateMatrix();
-
- colorContext = TQColor::enterAllocContext();
- setBackgroundColor( black );
- newEpoch();
-
- timer.start( 10 );
- connect( &timer, TQT_SIGNAL( timeout() ), TQT_SLOT( drawOnce() ) );
-}
-
-KLorenzSaver::~KLorenzSaver()
-{
- delete mat;
- mat=0;
- timer.stop();
- TQColor::leaveAllocContext();
- TQColor::destroyAllocContext( colorContext );
-}
-
-// read configuration settings from config file
-void KLorenzSaver::readSettings()
-{
- TDEConfig *config = TDEGlobal::config();
- config->setGroup( "Settings" );
-
- speed = config->readNumEntry( "Speed", DEFSPEED );
- epoch = config->readNumEntry( "Epoch", DEFEPOCH );
- zrot = config->readNumEntry( "ZRot", DEFZROT );
- yrot = config->readNumEntry( "YRot", DEFZROT );
- xrot = config->readNumEntry( "XRot", DEFZROT );
-
- int crate_num = config->readNumEntry( "Color Rate", DEFCOLOR );
- crate = (double)crate_num / (double)MAXCOLOR;
-}
-
-void KLorenzSaver::setSpeed(int num)
-{
- speed = num;
-}
-
-void KLorenzSaver::setEpoch(int num)
-{
- epoch = num;
-}
-
-void KLorenzSaver::setZRot(int num)
-{
- zrot = num;
-}
-
-void KLorenzSaver::setYRot(int num)
-{
- yrot = num;
-}
-
-void KLorenzSaver::setXRot(int num)
-{
- xrot = num;
-}
-
-void KLorenzSaver::setCRate(int num)
-{
- crate = (double)num / (double)MAXCOLOR;
-}
-
-void KLorenzSaver::updateMatrix()
-{
- // reset matrix
- mat->unit();
- // Remove the mean before the rotations...
- mat->translate(-0.95413, -0.96740, -23.60065);
- mat->rotZ(zrot);
- mat->rotY(yrot);
- mat->rotX(xrot);
- mat->translate(0, 0, 100);
- mat->proj(1);
-}
-
-void KLorenzSaver::newEpoch()
-{
- // Start at a random position, somewhere around the mean
- x = 0.95-25.0+50.0*kapp->random() / (RAND_MAX+1.0);
- y = 0.97-25.0+50.0*kapp->random() / (RAND_MAX+1.0);
- z = 23.6-25.0+50.0*kapp->random() / (RAND_MAX+1.0);
- // start at some random 'time' as well to have different colors
- t = 10000.0*kapp->random() / (RAND_MAX+1.0);
- erase();
- e=0; // reset epoch counter
-}
-
-// Computes the derivatives using Lorenz equations
-static void lorenz(double x, double y, double z, double& dx, double& dy, double& dz)
-{
- dx = 10*(y-x);
- dy = 28*x - y - x*z;
- dz = x*y - z*8.0/3.0;
-}
-
-// Use a simple Runge-Kutta formula to draw a few points
-// No need to go beyond 2nd order for a screensaver!
-void KLorenzSaver::drawOnce()
-{
- double kx, ky, kz, dx, dy, dz;
- const double h = 0.0001;
- const double tqh = h * 3.0 / 4.0;
- TQPainter p(this);
-
- for (int i=0; i<speed; i++) {
- // Runge-Kutta formula
- lorenz(x,y,z,dx,dy,dz);
- lorenz(x + tqh*dx, y + tqh*dy, z + tqh*dz, kx, ky, kz);
- x += h*(dx/3.0+2*kx/3.0);
- y += h*(dy/3.0+2*ky/3.0);
- z += h*(dz/3.0+2*kz/3.0);
- // Apply transform
- mat->transform(x,y,z,kx,ky,kz);
- // Choose a color
- p.setPen(
- TQColor((int)(sin(t*crate/pi)*127+128),
- (int)(sin(t*crate/(pi-1))*127+128),
- (int)(sin(t*crate/(pi-2))*127+128)).pixel() );
- // Draw a point
- p.drawPoint( (int)(kx*width()*1.5/kz)+(int)(width()/2),
- (int)(ky*height()*1.5/kz)+(int)(height()/2));
- t+=h;
- }
- if (++e>=epoch) newEpoch();
-}
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