1 files changed, 122 insertions, 0 deletions
diff --git a/qtjava/javalib/examples/drawlines/ConnectWidget.java b/qtjava/javalib/examples/drawlines/ConnectWidget.java
new file mode 100644
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+++ b/qtjava/javalib/examples/drawlines/ConnectWidget.java
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+/***************************************************************************
+* $Id$
+**
+* 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.Random;
+
+//
+// ConnectWidget - draws connected lines
+//
+class ConnectWidget  extends QWidget
+{
+static final int MAXPOINTS = 2000;			// maximum number of points
+static final int MAXCOLORS = 40;
+
+private    QPoint[]     points;				// point array
+private    QColor[]     colors;				// color array
+private    int		count;				// count = number of points
+private    boolean	down;				// true if mouse down
+private    Random generator = new Random(System.currentTimeMillis());
+
+//
+// Constructs a ConnectWidget.
+//
+public ConnectWidget( )
+{
+	this(null, null);
+}
+
+public ConnectWidget( QWidget parent, String name )
+{
+    super( parent, name, WStaticContents );
+    setBackgroundColor( white() );		// white background
+    count = 0;
+    down = false;
+    points = new QPoint[MAXPOINTS];
+    colors = new QColor[MAXCOLORS];
+    for ( int i=0; i<MAXCOLORS; i++ )		// init color array
+	colors[i] = new QColor( generator.nextInt(255), generator.nextInt(255), generator.nextInt(255) );
+}
+
+
+//
+// Handles paint events for the connect widget.
+//
+
+protected void paintEvent( QPaintEvent e  )
+{
+    QPainter paint = new QPainter( this );
+    for ( int i=0; i<count-1; i++ ) {		// connect all points
+	for ( int j=i+1; j<count; j++ ) {
+	    paint.setPen( colors[generator.nextInt(MAXCOLORS)] ); // set random pen color
+	    paint.drawLine( points[i], points[j] ); // draw line
+	}
+    }
+    paint.end();
+}
+
+
+//
+// Handles mouse press events for the connect widget.
+//
+
+protected void mousePressEvent( QMouseEvent e  )
+{
+    down = true;
+    count = 0;					// start recording points
+    erase();					// erase widget contents
+}
+
+
+//
+// Handles mouse release events for the connect widget.
+//
+
+protected void mouseReleaseEvent( QMouseEvent e )
+{
+    down = false;				// done recording points
+    update();					// draw the lines
+}
+
+
+//
+// Handles mouse move events for the connect widget.
+//
+
+protected void mouseMoveEvent( QMouseEvent e )
+{
+    if ( down && count < MAXPOINTS ) {
+	QPainter paint = new QPainter( this );
+	points[count++] = new QPoint(e.pos());		// add point
+	paint.drawPoint( e.pos() );		// plot point
+	paint.end();
+    }
+}
+
+
+//
+// Create and display a ConnectWidget.
+//
+
+public static void main( String[] args )
+{
+    QApplication a = new QApplication( args );
+    ConnectWidget connect = new ConnectWidget();
+    connect.setCaption( "Qt Example - Draw lines");
+    a.setMainWidget( connect );
+    connect.show();
+    a.exec();
+	return;
+}
+
+static {
+	qtjava.initialize();
+}
+
+}