1 files changed, 158 insertions, 0 deletions
diff --git a/qtjava/javalib/examples/aclock/AnalogClock.java b/qtjava/javalib/examples/aclock/AnalogClock.java
new file mode 100644
index 00000000..2d97cb67
--- /dev/null
+++ b/qtjava/javalib/examples/aclock/AnalogClock.java
@@ -0,0 +1,158 @@
+/****************************************************************************
+** $Id$
+**
+** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+import org.kde.qt.*;
+import java.util.Date;
+
+class AnalogClock extends QWidget		// analog clock widget
+{
+
+private Date	time;
+
+//
+// Constructs an analog clock widget that uses an internal QTimer.
+//
+
+public AnalogClock( QWidget parent )
+{
+	this(parent, null);
+}
+
+public AnalogClock( QWidget parent, String name )
+{
+	super( parent, name );
+    time = new Date();		// get current time
+    QTimer internalTimer = new QTimer( this );	// create internal timer
+    connect( internalTimer, SIGNAL("timeout()"), SLOT("timeout()") );
+    internalTimer.start( 5000 );		// emit signal every 5 seconds
+}
+
+
+public void setTime( Date t )
+{
+    time = t;
+    timeout();
+}
+
+//
+// The QTimer.timeout() signal is received by this slot.
+//
+
+public void timeout()
+{
+    Date old_time = new Date();	// get the current time
+	old_time.setTime( time.getTime() - 5000 );
+	time.setTime( time.getTime() + 5000 );
+    if ( old_time.getMinutes() != time.getMinutes() ) {	// minute has changed
+	if (autoMask())
+	    updateMask();
+	else
+	    update();
+    }
+}
+
+
+public void paintEvent( QPaintEvent event )
+{
+    if ( autoMask() )
+	return;
+    QPainter paint = new QPainter( this );
+    paint.setBrush( colorGroup().foreground() );
+    drawClock( paint );
+}
+
+// If the clock is transparent, we use updateMask()
+// instead of paintEvent()
+
+public void updateMask()	// paint clock mask
+{
+    QBitmap bm = new QBitmap( size() );
+    bm.fill( color0() );			//transparent
+
+    QPainter paint = new QPainter();
+    paint.begin( bm, this );
+    paint.setBrush( color1() );		// use non-transparent color
+    paint.setPen( color1() );
+
+    drawClock( paint );
+
+    paint.end();
+    setMask( bm );
+}
+
+//
+// The clock is painted using a 1000x1000 square coordinate system, in
+// the a centered square, as big as possible.  The painter's pen and
+// brush colors are used.
+//
+public void drawClock( QPainter paint )
+{
+    paint.save();
+    
+    paint.setWindow( -500,-500, 1000,1000 );
+
+    QRect v = paint.viewport();
+    int d = v.width() < v.height() ? v.width() : v.height();
+    paint.setViewport( v.left() + (v.width()-d)/2,
+			v.top() + (v.height()-d)/2, d, d );
+
+    // time = QTime.currentTime();
+    QPointArray pts = new QPointArray();
+
+    paint.save();
+    paint.rotate( 30*(time.getHours()%12-3) + time.getMinutes()/2 );
+    pts.setPoints( 4, new short[] { -20,0,  0,-20, 300,0, 0,20 } );
+    paint.drawConvexPolygon( pts );
+    paint.restore();
+
+    paint.save();
+    paint.rotate( (time.getMinutes()-15)*6 );
+    pts.setPoints( 4, new short[] { -10,0, 0,-10, 400,0, 0,10 } );
+    paint.drawConvexPolygon( pts );
+    paint.restore();
+
+    for ( int i=0; i<12; i++ ) {
+	paint.drawLine( 440,0, 460,0 );
+	paint.rotate( 30 );
+    }
+
+    paint.restore();
+}
+
+
+public void setAutoMask(boolean b)
+{
+    if (b)
+	setBackgroundMode( PaletteForeground );
+    else
+	setBackgroundMode( PaletteBackground );
+    super.setAutoMask(b);
+}
+
+public static void main( String[] args )
+{
+    QApplication a = new QApplication( args );
+    AnalogClock clock = new AnalogClock(null, null);
+    if ( args.length == 1 && args[0].equals("-transparent") )
+        clock.setAutoMask( true );
+    clock.resize( 100, 100 );
+    a.setMainWidget( clock );
+    clock.setCaption("Qt Example - Analog Clock");
+    clock.show();
+    int result = a.exec();
+    return;
+}
+
+static {
+	qtjava.initialize();
+}
+
+}
+