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diff --git a/examples/widgets/doc/src/digitalclock.qdoc b/examples/widgets/doc/src/digitalclock.qdoc deleted file mode 100644 index aff349adb8..0000000000 --- a/examples/widgets/doc/src/digitalclock.qdoc +++ /dev/null @@ -1,75 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:FDL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Free Documentation License Usage -** Alternatively, this file may be used under the terms of the GNU Free -** Documentation License version 1.3 as published by the Free Software -** Foundation and appearing in the file included in the packaging of -** this file. Please review the following information to ensure -** the GNU Free Documentation License version 1.3 requirements -** will be met: https://www.gnu.org/licenses/fdl-1.3.html. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/*! - \example widgets/digitalclock - \title Digital Clock Example - \ingroup examples-widgets - \brief The Digital Clock example shows how to use QLCDNumber to display a - number with LCD-like digits. - - \borderedimage digitalclock-example.png - \caption Screenshot of the Digital Clock example - - This example also demonstrates how QTimer can be used to update a widget - at regular intervals. - - \section1 DigitalClock Class Definition - - The \c DigitalClock class provides a clock widget showing the time with - hours and minutes separated by a blinking colon. We subclass QLCDNumber - and implement a private slot called \c showTime() to update the clock - display: - - \snippet widgets/digitalclock/digitalclock.h 0 - - \section1 DigitalClock Class Implementation - - \snippet widgets/digitalclock/digitalclock.cpp 0 - - In the constructor, we first change the look of the LCD numbers. The - QLCDNumber::Filled style produces raised segments filled with the - foreground color (typically black). We also set up a one-second timer - to keep track of the current time, and we connect - its \l{QTimer::timeout()}{timeout()} signal to the private \c showTime() slot - so that the display is updated every second. Then, we - call the \c showTime() slot; without this call, there would be a one-second - delay at startup before the time is shown. - - \snippet widgets/digitalclock/digitalclock.cpp 1 - \snippet widgets/digitalclock/digitalclock.cpp 2 - - The \c showTime() slot is called whenever the clock display needs - to be updated. - - The current time is converted into a string with the format "hh:mm". - When QTime::second() is a even number, the colon in the string is - replaced with a space. This makes the colon appear and vanish every - other second. - - Finally, we call QLCDNumber::display() to update the widget. -*/ |