83a5694dc2
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
402 lines
12 KiB
C++
402 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore>
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#include <QtWidgets>
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class Digits: public QWidget
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{
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Q_OBJECT
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public:
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enum {
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Slide,
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Flip,
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Rotate
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};
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Digits(QWidget *parent)
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: QWidget(parent)
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, m_number(0)
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, m_transition(Slide)
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{
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setAttribute(Qt::WA_OpaquePaintEvent, true);
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setAttribute(Qt::WA_NoSystemBackground, true);
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connect(&m_animator, SIGNAL(frameChanged(int)), SLOT(update()));
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m_animator.setFrameRange(0, 100);
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m_animator.setDuration(600);
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m_animator.setCurveShape(QTimeLine::EaseInOutCurve);
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}
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void setTransition(int tr) {
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m_transition = tr;
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}
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int transition() const {
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return m_transition;
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}
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void setNumber(int n) {
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if (m_number != n) {
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m_number = qBound(0, n, 99);
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preparePixmap();
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update();
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}
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}
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void flipTo(int n) {
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if (m_number != n) {
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m_number = qBound(0, n, 99);
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m_lastPixmap = m_pixmap;
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preparePixmap();
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m_animator.stop();
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m_animator.start();
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}
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}
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protected:
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void drawFrame(QPainter *p, const QRect &rect) {
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p->setPen(Qt::NoPen);
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QLinearGradient gradient(rect.topLeft(), rect.bottomLeft());
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gradient.setColorAt(0.00, QColor(245, 245, 245));
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gradient.setColorAt(0.49, QColor(192, 192, 192));
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gradient.setColorAt(0.51, QColor(245, 245, 245));
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gradient.setColorAt(1.00, QColor(192, 192, 192));
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p->setBrush(gradient);
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QRect r = rect;
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p->drawRoundedRect(r, 15, 15, Qt::RelativeSize);
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r.adjust(1, 4, -1, -4);
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p->setPen(QColor(181, 181, 181));
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p->setBrush(Qt::NoBrush);
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p->drawRoundedRect(r, 15, 15, Qt::RelativeSize);
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p->setPen(QColor(159, 159, 159));
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int y = rect.top() + rect.height() / 2 - 1;
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p->drawLine(rect.left(), y, rect.right(), y);
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}
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QPixmap drawDigits(int n, const QRect &rect) {
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int scaleFactor = 2;
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QString str = QString::number(n);
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if (str.length() == 1)
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str.prepend("0");
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QFont font;
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font.setFamily("Helvetica");
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int fontHeight = scaleFactor * 0.55 * rect.height();
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font.setPixelSize(fontHeight);
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font.setBold(true);
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QPixmap pixmap(rect.size() * scaleFactor);
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pixmap.fill(Qt::transparent);
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QLinearGradient gradient(QPoint(0, 0), QPoint(0, pixmap.height()));
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gradient.setColorAt(0.00, QColor(128, 128, 128));
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gradient.setColorAt(0.49, QColor(64, 64, 64));
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gradient.setColorAt(0.51, QColor(128, 128, 128));
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gradient.setColorAt(1.00, QColor(16, 16, 16));
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QPainter p;
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p.begin(&pixmap);
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p.setFont(font);
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QPen pen;
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pen.setBrush(QBrush(gradient));
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p.setPen(pen);
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p.drawText(pixmap.rect(), Qt::AlignCenter, str);
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p.end();
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return pixmap.scaledToWidth(width(), Qt::SmoothTransformation);
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}
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void preparePixmap() {
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m_pixmap = QPixmap(size());
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m_pixmap.fill(Qt::transparent);
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QPainter p;
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p.begin(&m_pixmap);
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p.drawPixmap(0, 0, drawDigits(m_number, rect()));
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p.end();
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}
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void resizeEvent(QResizeEvent*) {
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preparePixmap();
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update();
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}
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void paintStatic() {
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QPainter p(this);
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p.fillRect(rect(), Qt::black);
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int pad = width() / 10;
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drawFrame(&p, rect().adjusted(pad, pad, -pad, -pad));
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p.drawPixmap(0, 0, m_pixmap);
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}
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void paintSlide() {
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QPainter p(this);
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p.fillRect(rect(), Qt::black);
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int pad = width() / 10;
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QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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drawFrame(&p, fr);
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p.setClipRect(fr);
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int y = height() * m_animator.currentFrame() / 100;
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p.drawPixmap(0, y, m_lastPixmap);
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p.drawPixmap(0, y - height(), m_pixmap);
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}
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void paintFlip() {
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QPainter p(this);
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p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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p.setRenderHint(QPainter::Antialiasing, true);
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p.fillRect(rect(), Qt::black);
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int hw = width() / 2;
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int hh = height() / 2;
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// behind is the new pixmap
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int pad = width() / 10;
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QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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drawFrame(&p, fr);
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p.drawPixmap(0, 0, m_pixmap);
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int index = m_animator.currentFrame();
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if (index <= 50) {
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// the top part of the old pixmap is flipping
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int angle = -180 * index / 100;
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QTransform transform;
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transform.translate(hw, hh);
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transform.rotate(angle, Qt::XAxis);
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p.setTransform(transform);
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drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh));
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p.drawPixmap(-hw, -hh, m_lastPixmap);
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// the bottom part is still the old pixmap
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p.resetTransform();
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p.setClipRect(0, hh, width(), hh);
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drawFrame(&p, fr);
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p.drawPixmap(0, 0, m_lastPixmap);
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} else {
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p.setClipRect(0, hh, width(), hh);
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// the bottom part is still the old pixmap
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drawFrame(&p, fr);
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p.drawPixmap(0, 0, m_lastPixmap);
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// the bottom part of the new pixmap is flipping
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int angle = 180 - 180 * m_animator.currentFrame() / 100;
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QTransform transform;
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transform.translate(hw, hh);
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transform.rotate(angle, Qt::XAxis);
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p.setTransform(transform);
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drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh));
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p.drawPixmap(-hw, -hh, m_pixmap);
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}
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}
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void paintRotate() {
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QPainter p(this);
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int pad = width() / 10;
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QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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drawFrame(&p, fr);
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p.setClipRect(fr);
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int angle1 = -180 * m_animator.currentFrame() / 100;
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int angle2 = 180 - 180 * m_animator.currentFrame() / 100;
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int angle = (m_animator.currentFrame() <= 50) ? angle1 : angle2;
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QPixmap pix = (m_animator.currentFrame() <= 50) ? m_lastPixmap : m_pixmap;
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QTransform transform;
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transform.translate(width() / 2, height() / 2);
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transform.rotate(angle, Qt::XAxis);
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p.setTransform(transform);
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p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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p.drawPixmap(-width() / 2, -height() / 2, pix);
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}
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void paintEvent(QPaintEvent *event) {
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Q_UNUSED(event);
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if (m_animator.state() == QTimeLine::Running) {
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if (m_transition == Slide)
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paintSlide();
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if (m_transition == Flip)
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paintFlip();
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if (m_transition == Rotate)
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paintRotate();
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} else {
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paintStatic();
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}
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}
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private:
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int m_number;
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int m_transition;
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QPixmap m_pixmap;
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QPixmap m_lastPixmap;
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QTimeLine m_animator;
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};
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class DigiFlip : public QMainWindow
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{
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Q_OBJECT
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public:
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DigiFlip(QWidget *parent = 0)
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: QMainWindow(parent)
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{
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m_hour = new Digits(this);
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m_hour->show();
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m_minute = new Digits(this);
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m_minute->show();
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QPalette pal = palette();
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pal.setColor(QPalette::Window, Qt::black);
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setPalette(pal);
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m_ticker.start(1000, this);
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QTime t = QTime::currentTime();
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m_hour->setNumber(t.hour());
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m_minute->setNumber(t.minute());
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updateTime();
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QAction *slideAction = new QAction("&Slide", this);
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QAction *flipAction = new QAction("&Flip", this);
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QAction *rotateAction = new QAction("&Rotate", this);
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connect(slideAction, SIGNAL(triggered()), SLOT(chooseSlide()));
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connect(flipAction, SIGNAL(triggered()), SLOT(chooseFlip()));
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connect(rotateAction, SIGNAL(triggered()), SLOT(chooseRotate()));
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addAction(slideAction);
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addAction(flipAction);
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addAction(rotateAction);
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setContextMenuPolicy(Qt::ActionsContextMenu);
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}
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void updateTime() {
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QTime t = QTime::currentTime();
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m_hour->flipTo(t.hour());
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m_minute->flipTo(t.minute());
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QString str = t.toString("hh:mm:ss");
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str.prepend(": ");
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if (m_hour->transition() == Digits::Slide)
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str.prepend("Slide");
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if (m_hour->transition() == Digits::Flip)
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str.prepend("Flip");
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if (m_hour->transition() == Digits::Rotate)
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str.prepend("Rotate");
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setWindowTitle(str);
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}
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void switchTransition(int delta) {
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int i = (m_hour->transition() + delta + 3) % 3;
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m_hour->setTransition(i);
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m_minute->setTransition(i);
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updateTime();
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}
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protected:
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void resizeEvent(QResizeEvent*) {
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int digitsWidth = width() / 2;
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int digitsHeight = digitsWidth * 1.2;
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int y = (height() - digitsHeight) / 3;
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m_hour->resize(digitsWidth, digitsHeight);
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m_hour->move(0, y);
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m_minute->resize(digitsWidth, digitsHeight);
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m_minute->move(width() / 2, y);
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}
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void timerEvent(QTimerEvent*) {
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updateTime();
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}
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void keyPressEvent(QKeyEvent *event) {
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if (event->key() == Qt::Key_Right) {
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switchTransition(1);
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event->accept();
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}
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if (event->key() == Qt::Key_Left) {
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switchTransition(-1);
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event->accept();
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}
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}
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private slots:
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void chooseSlide() {
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m_hour->setTransition(0);
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m_minute->setTransition(0);
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updateTime();
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}
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void chooseFlip() {
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m_hour->setTransition(1);
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m_minute->setTransition(1);
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updateTime();
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}
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void chooseRotate() {
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m_hour->setTransition(2);
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m_minute->setTransition(2);
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updateTime();
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}
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private:
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QBasicTimer m_ticker;
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Digits *m_hour;
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Digits *m_minute;
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};
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#include "digiflip.moc"
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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DigiFlip time;
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time.resize(320, 240);
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time.show();
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return app.exec();
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}
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