1 files changed, 97 insertions, 0 deletions
diff --git a/examples/dclock/dclock.cpp b/examples/dclock/dclock.cpp
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+++ b/examples/dclock/dclock.cpp
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+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "dclock.h"
+#include <qdatetime.h>
+
+
+//
+// Constructs a DigitalClock widget with a parent and a name.
+//
+
+DigitalClock::DigitalClock( QWidget *parent, const char *name )
+    : QLCDNumber( parent, name )
+{
+    showingColon = FALSE;
+    setFrameStyle( QFrame::Panel | QFrame::Raised );
+    setLineWidth( 2 );				// set frame line width
+    showTime();					// display the current time
+    normalTimer = startTimer( 500 );		// 1/2 second timer events
+    showDateTimer = -1;				// not showing date
+}
+
+
+//
+// Handles timer events for the digital clock widget.
+// There are two different timers; one timer for updating the clock
+// and another one for switching back from date mode to time mode.
+//
+
+void DigitalClock::timerEvent( QTimerEvent *e )
+{
+    if ( e->timerId() == showDateTimer )	// stop showing date
+	stopDate();
+    else {					// normal timer
+	if ( showDateTimer == -1 )		// not showing date
+	    showTime();
+    }
+}
+
+//
+// Enters date mode when the left mouse button is pressed.
+//
+
+void DigitalClock::mousePressEvent( QMouseEvent *e )
+{
+    if ( e->button() == QMouseEvent::LeftButton )		// left button pressed
+	showDate();
+}
+
+
+//
+// Shows the current date in the internal lcd widget.
+// Fires a timer to stop showing the date.
+//
+
+void DigitalClock::showDate()
+{
+    if ( showDateTimer != -1 )			// already showing date
+	return;
+    QDate date = QDate::currentDate();
+    QString s;
+    s.sprintf( "%2d %2d", date.month(), date.day() );
+    display( s );				// sets the LCD number/text
+    showDateTimer = startTimer( 2000 );		// keep this state for 2 secs
+}
+
+//
+// Stops showing the date.
+//
+
+void DigitalClock::stopDate()
+{
+    killTimer( showDateTimer );
+    showDateTimer = -1;
+    showTime();
+}
+
+//
+// Shows the current time in the internal lcd widget.
+//
+
+void DigitalClock::showTime()
+{
+    showingColon = !showingColon;		// toggle/blink colon
+    QString s = QTime::currentTime().toString().left(5);
+    if ( !showingColon )
+	s[2] = ' ';
+    if ( s[0] == '0' )
+	s[0] = ' ';
+    display( s );				// set LCD number/text
+}