diff options
Diffstat (limited to 'tdescreensaver/kdesavers/wave.cpp')
| -rw-r--r-- | tdescreensaver/kdesavers/wave.cpp | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/tdescreensaver/kdesavers/wave.cpp b/tdescreensaver/kdesavers/wave.cpp new file mode 100644 index 00000000..67357f89 --- /dev/null +++ b/tdescreensaver/kdesavers/wave.cpp @@ -0,0 +1,324 @@ +//----------------------------------------------------------------------------- +// +// kwave - Waveing Flag Screen Saver for KDE 2 +// +// Copyright (c) Ian Reinhart Geiser 2001 +// +#include <stdlib.h> +#include <tqlabel.h> +#include <tqlayout.h> +#include <kapplication.h> +#include <klocale.h> +#include <kconfig.h> +#include <kcolordialog.h> +#include <kbuttonbox.h> +#include <kcolorbutton.h> +#include <kglobal.h> +#include "wave.h" +#include "wave.moc" +#ifdef TQ_WS_MACX +#include <OpenGL/glu.h> +#include <OpenGL/gl.h> +#else +#include <GL/glu.h> +#include <GL/gl.h> +#endif +#include <tqimage.h> +#include <kdebug.h> +#include <tqpainter.h> +#include <tqradiobutton.h> +#include <tqspinbox.h> +#include <kstandarddirs.h> +#include <math.h> +#include <kmessagebox.h> +#ifndef GLU_NURBS_TEXTURE_COORD +#define GLU_NURBS_TEXTURE_COORD 100168 +#endif +// libtdescreensaver interface + +extern "C" +{ + KDE_EXPORT const char *kss_applicationName = "kwave.kss"; + KDE_EXPORT const char *kss_description = I18N_NOOP( "Bitmap Wave Screen Saver" ); + KDE_EXPORT const char *kss_version = "2.2.0"; + + KDE_EXPORT KScreenSaver *kss_create( WId id ) + { + return new KWaveSaver( id ); + } + + KDE_EXPORT TQDialog *kss_setup() + { + return new KWaveSetup(); + } +} + +//----------------------------------------------------------------------------- +// dialog to setup screen saver parameters +// +KWaveSetup::KWaveSetup( TQWidget *parent, const char *name ) + : SetupUi( parent, name, TRUE ) +{ + readSettings(); + + preview->setFixedSize( 220, 170 ); + preview->setBackgroundColor( black ); + preview->show(); // otherwise saver does not get correct size + saver = new KWaveSaver( preview->winId() ); + + connect( PushButton1, TQT_SIGNAL( clicked() ), TQT_SLOT( slotOkPressed() ) ); + connect( PushButton2, TQT_SIGNAL( clicked() ), TQT_SLOT( reject() ) ); + connect( PushButton3, TQT_SIGNAL( clicked() ), TQT_SLOT( aboutPressed() ) ); + connect( SpinBox1, TQT_SIGNAL( valueChanged(int)), saver, TQT_SLOT( updateSize(int))); + connect( RadioButton1, TQT_SIGNAL( toggled(bool)), saver, TQT_SLOT( doStars(bool))); + +} + +KWaveSetup::~KWaveSetup( ) +{ + delete saver; +} + + +// read settings from config file +void KWaveSetup::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + +// color = config->readColorEntry( "Color", &black ); +} + +// Ok pressed - save settings and exit +void KWaveSetup::slotOkPressed() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + +// config->writeEntry( "Color", color ); + + config->sync(); + + accept(); +} + +void KWaveSetup::aboutPressed() +{ + KMessageBox::about(this, + i18n("<h3>Bitmap Flag Screen Saver</h3>\n<p>Waving Flag Screen Saver for TDE</p>\nCopyright (c) Ian Reinhart Geiser 2001")); +} +//----------------------------------------------------------------------------- + + +KWaveSaver::KWaveSaver( WId id ) : KScreenSaver( id ) +{ + kdDebug() << "Blank" << endl; + readSettings(); + + timer = new TQTimer( this ); + timer->start( 50, TRUE ); + setBackgroundColor( black ); + erase(); + wave = new Wave(); + embed(wave); + wave->show(); + connect( timer, TQT_SIGNAL(timeout()), this, TQT_SLOT(blank()) );; +} + +KWaveSaver::~KWaveSaver() +{ + +} + +// read configuration settings from config file +void KWaveSaver::readSettings() +{ + TDEConfig *config = TDEGlobal::config(); + config->setGroup( "Settings" ); + +// color = config->readColorEntry( "Color", &black ); +} + +void KWaveSaver::blank() +{ + // Play wave + + wave->updateGL(); + timer->start( 100, TRUE ); + +} +Wave::Wave( TQWidget * parent, const char * name) : TQGLWidget (parent,name) +{ + pNurb = 0; + + nNumPoints = 4; + index = 0; +} + +Wave::~Wave() +{ + glDeleteTextures( 1, &texture[0] ); + gluDeleteNurbsRenderer(pNurb); +} + +/** setup the GL enviroment */ +void Wave::initializeGL () +{ + + kdDebug() << "InitGL" << endl; + + /* Load in the texture */ + if ( !LoadGLTextures( ) ) + exit(0); + + /* Enable Texture Mapping ( NEW ) */ + glEnable( GL_TEXTURE_2D ); + + /* Enable smooth shading */ + glShadeModel( GL_SMOOTH ); + // Light values and coordinates + GLfloat specular[] = { 0.7f, 0.0f, 0.0f, 1.0f}; + GLfloat shine[] = { 75.0f }; + + glClearColor(0.0f, 0.0f, 0.0f, 0.0f ); + + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + + glEnable(GL_COLOR_MATERIAL); + + glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE); + glMaterialfv(GL_FRONT, GL_SPECULAR, specular); + glMaterialfv(GL_FRONT, GL_SHININESS, shine); + + glEnable(GL_AUTO_NORMAL); + + + pNurb = gluNewNurbsRenderer(); + + gluNurbsProperty(pNurb, GLU_SAMPLING_TOLERANCE, 25.0f); + // Uncomment the next line and comment the one following to produce a + // wire frame mesh. + //gluNurbsProperty(pNurb, GLU_DISPLAY_MODE, GLU_OUTLINE_POLYGON); + gluNurbsProperty(pNurb, GLU_DISPLAY_MODE, (GLfloat)GLU_FILL); + glEnable(GL_MAP2_TEXTURE_COORD_3); + glEnable(GL_MAP2_VERTEX_3); + glEnable(GL_BLEND); + +} +/** resize the gl view */ +void Wave::resizeGL ( int w, int h) +{ + kdDebug() << "ResizeGL " << w << "," <<h<< endl; + // Prevent a divide by zero + if(h == 0) + h = 1; + + // Set Viewport to window dimensions + glViewport(0, 0, w, h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + + // Perspective view + gluPerspective (45.0f, (GLdouble)w/(GLdouble)h, 1.0, 40.0f); + + // Modelview matrix reset + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + // Viewing transformation, position for better view + glTranslatef (0.0f, 0.0f, -20.0f); + +} +/** paint the GL view */ +void Wave::paintGL () +{ + + float ctrlPoints[4][4][3]; + + index++; + float Z[16]; + for( int i = 0; i < 16; i++) + { + Z[i] = 3.0 * sin(16*(3.141592654 * 2.0f) * (index+(i))/360); + } + +// kdDebug() << "-----" << endl; + int counter =15; + for( int i = 0; i < 4; i++) + for( int j = 0; j < 4;j++) + { + ctrlPoints[i][j][0] = float((5*i)-10); + ctrlPoints[i][j][1] = float((3*j)-6); + ctrlPoints[i][j][2] = Z[counter--]; +// kdDebug() << Z[counter] << endl; + } + // Knot sequence for the NURB + float knots[8] = { 0, 0, 0, 0, 1, 1, 1, 1 }; + // Draw in Blu + //glColor3ub(0,0,220); + + // Clear the window with current clearing color + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + // Save the modelview matrix stack + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + + // Rotate the mesh around to make it easier to see + glRotatef(index/2, 1.0f,0.0f,0.0f); + glRotatef(index/5, 0.0f,1.0f,0.0f); + glRotatef(index/6, 0.0f,0.0f,1.0f); + + // Render the NURB + gluBeginSurface( pNurb ); + gluNurbsSurface( pNurb, 8, knots, 8, knots, + 4*3, 3, &ctrlPoints[0][0][0], 4, 4, GL_MAP2_TEXTURE_COORD_3); + //gluNurbsSurface( pNurb, 8, knots, 8, knots, + //4*3, 3, &ctrlPoints[0][0][0], 4, 4, GL_MAP2_NORMAL ); + gluNurbsSurface( pNurb, 8, knots, 8, knots, + 4*3, 3, &ctrlPoints[0][0][0], 4, 4, GL_MAP2_VERTEX_3 ); + gluEndSurface( pNurb ); + + // Restore the modelview matrix + glPopMatrix(); + + glFlush(); +} + +bool Wave::LoadGLTextures() +{ + /* Status indicator */ + bool Status = TRUE; + + TQImage buf; // = TQPixmap::grabWindow ( 0 ).convertToImage(); + kdDebug() << "Loading: " << locate("data", "tdescreensaver/image.png") << endl; + if (buf.load( locate("data", "tdescreensaver/image.png") ) ) + + { + tex = convertToGLFormat(buf); // flipped 32bit RGBA + kdDebug() << "Texture loaded: " << tex.numBytes () << endl; + } + else + { + TQImage dummy( 64, 64, 64 ); + dummy.fill( TQt::white.rgb() ); + buf = dummy; + tex = convertToGLFormat( buf ); + } + /* Set the status to true */ + //Status = TRUE; + glGenTextures(1, &texture[0]); /* create three textures */ + glBindTexture(GL_TEXTURE_2D, texture[0]); + /* use linear filtering */ + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + /* actually generate the texture */ + glTexImage2D(GL_TEXTURE_2D, 0, 4, tex.width(), tex.height(), 0, + GL_RGBA, GL_UNSIGNED_BYTE, tex.bits()); + kdDebug() << "Texture Loaded: " << tex.width() << "," << tex.height() << endl; + + + return Status; +} |