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Diffstat (limited to 'examples/widgets/widgets/wiggly/wigglywidget.cpp')
-rw-r--r-- | examples/widgets/widgets/wiggly/wigglywidget.cpp | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/examples/widgets/widgets/wiggly/wigglywidget.cpp b/examples/widgets/widgets/wiggly/wigglywidget.cpp deleted file mode 100644 index ab549ef07c..0000000000 --- a/examples/widgets/widgets/wiggly/wigglywidget.cpp +++ /dev/null @@ -1,111 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "wigglywidget.h" - -#include <QFontMetrics> -#include <QPainter> -#include <QTimerEvent> - -//! [0] -WigglyWidget::WigglyWidget(QWidget *parent) - : QWidget(parent), step(0) -{ - setBackgroundRole(QPalette::Midlight); - setAutoFillBackground(true); - - QFont newFont = font(); - newFont.setPointSize(newFont.pointSize() + 20); - setFont(newFont); - - timer.start(60, this); -} -//! [0] - -//! [1] -void WigglyWidget::paintEvent(QPaintEvent * /* event */) -//! [1] //! [2] -{ - static constexpr int sineTable[16] = { - 0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38 - }; - - QFontMetrics metrics(font()); - int x = (width() - metrics.horizontalAdvance(text)) / 2; - int y = (height() + metrics.ascent() - metrics.descent()) / 2; - QColor color; -//! [2] - -//! [3] - QPainter painter(this); -//! [3] //! [4] - for (int i = 0; i < text.size(); ++i) { - int index = (step + i) % 16; - color.setHsv((15 - index) * 16, 255, 191); - painter.setPen(color); - painter.drawText(x, y - ((sineTable[index] * metrics.height()) / 400), - QString(text[i])); - x += metrics.horizontalAdvance(text[i]); - } -} -//! [4] - -//! [5] -void WigglyWidget::timerEvent(QTimerEvent *event) -//! [5] //! [6] -{ - if (event->timerId() == timer.timerId()) { - ++step; - update(); - } else { - QWidget::timerEvent(event); - } -//! [6] -} |