summaryrefslogtreecommitdiffstats
path: root/tdescreensaver/kdesavers/polygon.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tdescreensaver/kdesavers/polygon.cpp')
-rw-r--r--tdescreensaver/kdesavers/polygon.cpp366
1 files changed, 366 insertions, 0 deletions
diff --git a/tdescreensaver/kdesavers/polygon.cpp b/tdescreensaver/kdesavers/polygon.cpp
new file mode 100644
index 00000000..a28cd34c
--- /dev/null
+++ b/tdescreensaver/kdesavers/polygon.cpp
@@ -0,0 +1,366 @@
+//-----------------------------------------------------------------------------
+//
+// kpolygon - Basic screen saver for KDE
+//
+// Copyright (c) Martin R. Jones 1996
+//
+// layout management added 1998/04/19 by Mario Weilguni <mweilguni@kde.org>
+// 2001/03/04 Converted to libtdescreensaver by Martin R. Jones
+
+#include <config.h>
+#include <stdlib.h>
+#include <time.h>
+#include <tqcolor.h>
+#include <tqlabel.h>
+#include <tqslider.h>
+#include <tqlayout.h>
+#include <klocale.h>
+#include <kconfig.h>
+#include <kglobal.h>
+#include <kmessagebox.h>
+
+#include "polygon.h"
+#include <tqpainter.h>
+
+#include "polygon.moc"
+
+
+#define MAXLENGTH 65
+#define MAXVERTICES 19
+
+// libtdescreensaver interface
+extern "C"
+{
+ KDE_EXPORT const char *kss_applicationName = "kpolygon.kss";
+ KDE_EXPORT const char *kss_description = I18N_NOOP( "KPolygon" );
+ KDE_EXPORT const char *kss_version = "2.2.0";
+
+ KDE_EXPORT KScreenSaver *kss_create( WId id )
+ {
+ return new kPolygonSaver( id );
+ }
+
+ KDE_EXPORT TQDialog *kss_setup()
+ {
+ return new kPolygonSetup();
+ }
+}
+
+//-----------------------------------------------------------------------------
+// dialog to setup screen saver parameters
+//
+kPolygonSetup::kPolygonSetup( TQWidget *parent, const char *name )
+ : KDialogBase( parent, name, true, i18n( "Setup Polygon Screen Saver" ),
+ Ok|Cancel|Help, Ok, true ), saver( 0 ), length( 10 ), vertices( 3 ),
+ speed( 50 )
+{
+ readSettings();
+
+ TQWidget *main = makeMainWidget();
+ setButtonText( Help, i18n( "A&bout" ) );
+
+ TQHBoxLayout *tl = new TQHBoxLayout(main, 0, spacingHint());
+ TQVBoxLayout *tl1 = new TQVBoxLayout;
+ tl->addLayout(tl1);
+
+ TQLabel *label = new TQLabel( i18n("Length:"), main );
+ tl1->addWidget(label);
+
+ TQSlider *sb = new TQSlider(1, MAXLENGTH, 10, length, Qt::Horizontal,
+ main );
+ sb->setMinimumSize( 90, 20 );
+ sb->setTickmarks(TQSlider::Below);
+ sb->setTickInterval(10);
+ connect( sb, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotLength( int ) ) );
+ tl1->addWidget(sb);
+
+ label = new TQLabel( i18n("Vertices:"), main );
+ tl1->addWidget(label);
+
+ sb = new TQSlider(3, MAXVERTICES, 2, vertices, Qt::Horizontal, main);
+ sb->setMinimumSize( 90, 20 );
+ sb->setTickmarks(TQSlider::Below);
+ sb->setTickInterval(2);
+ connect( sb, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotVertices( int ) ) );
+ tl1->addWidget(sb);
+
+ label = new TQLabel( i18n("Speed:"), main );
+ tl1->addWidget(label);
+
+ sb = new TQSlider(0, 100, 10, speed, Qt::Horizontal, main);
+ sb->setMinimumSize( 90, 20 );
+ sb->setTickmarks(TQSlider::Below);
+ sb->setTickInterval(10);
+ connect( sb, TQT_SIGNAL( valueChanged( int ) ), TQT_SLOT( slotSpeed( int ) ) );
+ tl1->addWidget(sb);
+ tl1->addStretch();
+
+ preview = new TQWidget( main );
+ preview->setFixedSize( 220, 170 );
+ preview->setBackgroundColor( black );
+ preview->show(); // otherwise saver does not get correct size
+ saver = new kPolygonSaver( preview->winId() );
+ tl->addWidget(preview);
+
+ setMinimumSize( sizeHint() );
+}
+
+kPolygonSetup::~kPolygonSetup()
+{
+ delete saver;
+}
+
+// read settings from config file
+void kPolygonSetup::readSettings()
+{
+ TDEConfig *config = TDEGlobal::config();
+ config->setGroup( "Settings" );
+
+ length = config->readNumEntry( "Length", length );
+ if ( length > MAXLENGTH )
+ length = MAXLENGTH;
+ else if ( length < 1 )
+ length = 1;
+
+ vertices = config->readNumEntry( "Vertices", vertices );
+ if ( vertices > MAXVERTICES )
+ vertices = MAXVERTICES;
+ else if ( vertices < 3 )
+ vertices = 3;
+
+ speed = config->readNumEntry( "Speed", speed );
+ if ( speed > 100 )
+ speed = 100;
+ else if ( speed < 50 )
+ speed = 50;
+}
+
+void kPolygonSetup::slotLength( int len )
+{
+ length = len;
+ if ( saver )
+ saver->setPolygon( length, vertices );
+}
+
+void kPolygonSetup::slotVertices( int num )
+{
+ vertices = num;
+ if ( saver )
+ saver->setPolygon( length, vertices );
+}
+
+void kPolygonSetup::slotSpeed( int num )
+{
+ speed = num;
+ if ( saver )
+ saver->setSpeed( speed );
+}
+
+// Ok pressed - save settings and exit
+void kPolygonSetup::slotOk()
+{
+ TDEConfig *config = TDEGlobal::config();
+ config->setGroup( "Settings" );
+
+ TQString slength;
+ slength.setNum( length );
+ config->writeEntry( "Length", slength );
+
+ TQString svertices;
+ svertices.setNum( vertices );
+ config->writeEntry( "Vertices", svertices );
+
+ TQString sspeed;
+ sspeed.setNum( speed );
+ config->writeEntry( "Speed", sspeed );
+
+ config->sync();
+
+ accept();
+}
+
+void kPolygonSetup::slotHelp()
+{
+ KMessageBox::information(this,
+ i18n("Polygon Version 2.2.0\n\n"\
+ "Written by Martin R. Jones 1996\n"\
+ "mjones@kde.org"));
+}
+
+//-----------------------------------------------------------------------------
+
+
+kPolygonSaver::kPolygonSaver( WId id ) : KScreenSaver( id )
+{
+ polygons.setAutoDelete( TRUE );
+
+ readSettings();
+
+ directions.resize( numVertices );
+ colorContext = TQColor::enterAllocContext();
+
+ blank();
+
+ initialiseColor();
+ initialisePolygons();
+
+ timer.start( speed );
+ connect( &timer, TQT_SIGNAL( timeout() ), TQT_SLOT( slotTimeout() ) );
+}
+
+kPolygonSaver::~kPolygonSaver()
+{
+ timer.stop();
+ TQColor::leaveAllocContext();
+ TQColor::destroyAllocContext( colorContext );
+}
+
+// set polygon properties
+void kPolygonSaver::setPolygon( int len, int ver )
+{
+ timer.stop();
+ numLines = len;
+ numVertices = ver;
+
+ directions.resize( numVertices );
+ polygons.clear();
+ initialisePolygons();
+ blank();
+
+ timer.start( speed );
+}
+
+// set the speed
+void kPolygonSaver::setSpeed( int spd )
+{
+ timer.stop();
+ speed = 100-spd;
+ timer.start( speed );
+}
+
+// read configuration settings from config file
+void kPolygonSaver::readSettings()
+{
+ TDEConfig *config = TDEGlobal::config();
+ config->setGroup( "Settings" );
+
+ numLines = config->readNumEntry( "Length", 10 );
+ if ( numLines > 50 )
+ numLines = 50;
+ else if ( numLines < 1 )
+ numLines = 1;
+
+ numVertices = config->readNumEntry( "Vertices", 3 );
+ if ( numVertices > 20 )
+ numVertices = 20;
+ else if ( numVertices < 3 )
+ numVertices = 3;
+
+ speed = 100 - config->readNumEntry( "Speed", 50 );
+}
+
+// draw next polygon and erase tail
+void kPolygonSaver::slotTimeout()
+{
+ TQPainter p( this );
+ if ( polygons.count() > numLines )
+ {
+ p.setPen( black );
+ p.drawPolyline( *polygons.first() );
+ }
+
+ nextColor();
+ p.setPen( colors[currentColor] );
+ p.drawPolyline( *polygons.last() );
+
+ if ( polygons.count() > numLines )
+ polygons.removeFirst();
+
+ polygons.append( new TQPointArray( polygons.last()->copy() ) );
+ moveVertices();
+}
+
+void kPolygonSaver::blank()
+{
+ setBackgroundColor( black );
+ erase();
+}
+
+// initialise the polygon
+void kPolygonSaver::initialisePolygons()
+{
+ int i;
+
+ polygons.append( new TQPointArray( numVertices + 1 ) );
+
+ TQPointArray &poly = *polygons.last();
+
+ for ( i = 0; i < numVertices; i++ )
+ {
+ poly.setPoint( i, rnd.getLong(width()), rnd.getLong(height()) );
+ directions[i].setX( 16 - rnd.getLong(8) * 4 );
+ if ( directions[i].x() == 0 )
+ directions[i].setX( 1 );
+ directions[i].setY( 16 - rnd.getLong(8) * 4 );
+ if ( directions[i].y() == 0 )
+ directions[i].setY( 1 );
+ }
+
+ poly.setPoint( i, poly.point(0) );
+}
+
+// move polygon in current direction and change direction if a border is hit
+void kPolygonSaver::moveVertices()
+{
+ int i;
+ TQPointArray &poly = *polygons.last();
+
+ for ( i = 0; i < numVertices; i++ )
+ {
+ poly.setPoint( i, poly.point(i) + directions[i] );
+ if ( poly[i].x() >= (int)width() )
+ {
+ directions[i].setX( -(rnd.getLong(4) + 1) * 4 );
+ poly[i].setX( (int)width() );
+ }
+ else if ( poly[i].x() < 0 )
+ {
+ directions[i].setX( (rnd.getLong(4) + 1) * 4 );
+ poly[i].setX( 0 );
+ }
+
+ if ( poly[i].y() >= (int)height() )
+ {
+ directions[i].setY( -(rnd.getLong(4) + 1) * 4 );
+ poly[i].setY( height() );
+ }
+ else if ( poly[i].y() < 0 )
+ {
+ directions[i].setY( (rnd.getLong(4) + 1) * 4 );
+ poly[i].setY( 0 );
+ }
+ }
+
+ poly.setPoint( i, poly.point(0) );
+}
+
+// create a color table of 64 colors
+void kPolygonSaver::initialiseColor()
+{
+ for ( int i = 0; i < 64; i++ )
+ {
+ colors[i].setHsv( i * 360 / 64, 255, 255 );
+ }
+
+ currentColor = 0;
+}
+
+// set foreground color to next in the table
+void kPolygonSaver::nextColor()
+{
+ currentColor++;
+
+ if ( currentColor > 63 )
+ currentColor = 0;
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-19 09:38:40 +0000