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Diffstat (limited to 'examples/embedded/digiflip/digiflip.cpp')
| -rw-r--r-- | examples/embedded/digiflip/digiflip.cpp | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/examples/embedded/digiflip/digiflip.cpp b/examples/embedded/digiflip/digiflip.cpp new file mode 100644 index 0000000000..38501d3ecc --- /dev/null +++ b/examples/embedded/digiflip/digiflip.cpp @@ -0,0 +1,425 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore> +#include <QtWidgets> + +class Digits: public QWidget +{ + Q_OBJECT + +public: + + enum { + Slide, + Flip, + Rotate + }; + + Digits(QWidget *parent) + : QWidget(parent) + , m_number(0) + , m_transition(Slide) + { + setAttribute(Qt::WA_OpaquePaintEvent, true); + setAttribute(Qt::WA_NoSystemBackground, true); + connect(&m_animator, SIGNAL(frameChanged(int)), SLOT(update())); + m_animator.setFrameRange(0, 100); + m_animator.setDuration(600); + m_animator.setCurveShape(QTimeLine::EaseInOutCurve); + } + + void setTransition(int tr) { + m_transition = tr; + } + + int transition() const { + return m_transition; + } + + void setNumber(int n) { + if (m_number != n) { + m_number = qBound(0, n, 99); + preparePixmap(); + update(); + } + } + + void flipTo(int n) { + if (m_number != n) { + m_number = qBound(0, n, 99); + m_lastPixmap = m_pixmap; + preparePixmap(); + m_animator.stop(); + m_animator.start(); + } + } + +protected: + + void drawFrame(QPainter *p, const QRect &rect) { + p->setPen(Qt::NoPen); + QLinearGradient gradient(rect.topLeft(), rect.bottomLeft()); + gradient.setColorAt(0.00, QColor(245, 245, 245)); + gradient.setColorAt(0.49, QColor(192, 192, 192)); + gradient.setColorAt(0.51, QColor(245, 245, 245)); + gradient.setColorAt(1.00, QColor(192, 192, 192)); + p->setBrush(gradient); + QRect r = rect; + p->drawRoundedRect(r, 15, 15, Qt::RelativeSize); + r.adjust(1, 4, -1, -4); + p->setPen(QColor(181, 181, 181)); + p->setBrush(Qt::NoBrush); + p->drawRoundedRect(r, 15, 15, Qt::RelativeSize); + p->setPen(QColor(159, 159, 159)); + int y = rect.top() + rect.height() / 2 - 1; + p->drawLine(rect.left(), y, rect.right(), y); + } + + QPixmap drawDigits(int n, const QRect &rect) { + + int scaleFactor = 2; +#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) + if (rect.height() > 240) + scaleFactor = 1; +#endif + + QString str = QString::number(n); + if (str.length() == 1) + str.prepend("0"); + + QFont font; + font.setFamily("Helvetica"); + int fontHeight = scaleFactor * 0.55 * rect.height(); + font.setPixelSize(fontHeight); + font.setBold(true); + + QPixmap pixmap(rect.size() * scaleFactor); + pixmap.fill(Qt::transparent); + + QLinearGradient gradient(QPoint(0, 0), QPoint(0, pixmap.height())); + gradient.setColorAt(0.00, QColor(128, 128, 128)); + gradient.setColorAt(0.49, QColor(64, 64, 64)); + gradient.setColorAt(0.51, QColor(128, 128, 128)); + gradient.setColorAt(1.00, QColor(16, 16, 16)); + + QPainter p; + p.begin(&pixmap); + p.setFont(font); + QPen pen; + pen.setBrush(QBrush(gradient)); + p.setPen(pen); + p.drawText(pixmap.rect(), Qt::AlignCenter, str); + p.end(); + + return pixmap.scaledToWidth(width(), Qt::SmoothTransformation); + } + + void preparePixmap() { + m_pixmap = QPixmap(size()); + m_pixmap.fill(Qt::transparent); + QPainter p; + p.begin(&m_pixmap); + p.drawPixmap(0, 0, drawDigits(m_number, rect())); + p.end(); + } + + void resizeEvent(QResizeEvent*) { + preparePixmap(); + update(); + } + + void paintStatic() { + QPainter p(this); + p.fillRect(rect(), Qt::black); + + int pad = width() / 10; + drawFrame(&p, rect().adjusted(pad, pad, -pad, -pad)); + p.drawPixmap(0, 0, m_pixmap); + } + + void paintSlide() { + QPainter p(this); + p.fillRect(rect(), Qt::black); + + int pad = width() / 10; + QRect fr = rect().adjusted(pad, pad, -pad, -pad); + drawFrame(&p, fr); + p.setClipRect(fr); + + int y = height() * m_animator.currentFrame() / 100; + p.drawPixmap(0, y, m_lastPixmap); + p.drawPixmap(0, y - height(), m_pixmap); + } + + void paintFlip() { + QPainter p(this); +#if !defined(Q_OS_SYMBIAN) && !defined(Q_OS_WINCE_WM) + p.setRenderHint(QPainter::SmoothPixmapTransform, true); + p.setRenderHint(QPainter::Antialiasing, true); +#endif + p.fillRect(rect(), Qt::black); + + int hw = width() / 2; + int hh = height() / 2; + + // behind is the new pixmap + int pad = width() / 10; + QRect fr = rect().adjusted(pad, pad, -pad, -pad); + drawFrame(&p, fr); + p.drawPixmap(0, 0, m_pixmap); + + int index = m_animator.currentFrame(); + + if (index <= 50) { + + // the top part of the old pixmap is flipping + int angle = -180 * index / 100; + QTransform transform; + transform.translate(hw, hh); + transform.rotate(angle, Qt::XAxis); + p.setTransform(transform); + drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh)); + p.drawPixmap(-hw, -hh, m_lastPixmap); + + // the bottom part is still the old pixmap + p.resetTransform(); + p.setClipRect(0, hh, width(), hh); + drawFrame(&p, fr); + p.drawPixmap(0, 0, m_lastPixmap); + } else { + + p.setClipRect(0, hh, width(), hh); + + // the bottom part is still the old pixmap + drawFrame(&p, fr); + p.drawPixmap(0, 0, m_lastPixmap); + + // the bottom part of the new pixmap is flipping + int angle = 180 - 180 * m_animator.currentFrame() / 100; + QTransform transform; + transform.translate(hw, hh); + transform.rotate(angle, Qt::XAxis); + p.setTransform(transform); + drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh)); + p.drawPixmap(-hw, -hh, m_pixmap); + + } + + } + + void paintRotate() { + QPainter p(this); + + int pad = width() / 10; + QRect fr = rect().adjusted(pad, pad, -pad, -pad); + drawFrame(&p, fr); + p.setClipRect(fr); + + int angle1 = -180 * m_animator.currentFrame() / 100; + int angle2 = 180 - 180 * m_animator.currentFrame() / 100; + int angle = (m_animator.currentFrame() <= 50) ? angle1 : angle2; + QPixmap pix = (m_animator.currentFrame() <= 50) ? m_lastPixmap : m_pixmap; + + QTransform transform; + transform.translate(width() / 2, height() / 2); + transform.rotate(angle, Qt::XAxis); + + p.setTransform(transform); + p.setRenderHint(QPainter::SmoothPixmapTransform, true); + p.drawPixmap(-width() / 2, -height() / 2, pix); + } + + void paintEvent(QPaintEvent *event) { + Q_UNUSED(event); + if (m_animator.state() == QTimeLine::Running) { + if (m_transition == Slide) + paintSlide(); + if (m_transition == Flip) + paintFlip(); + if (m_transition == Rotate) + paintRotate(); + } else { + paintStatic(); + } + } + +private: + int m_number; + int m_transition; + QPixmap m_pixmap; + QPixmap m_lastPixmap; + QTimeLine m_animator; +}; + +class DigiFlip : public QMainWindow +{ + Q_OBJECT + +public: + DigiFlip(QWidget *parent = 0) + : QMainWindow(parent) + { + m_hour = new Digits(this); + m_hour->show(); + m_minute = new Digits(this); + m_minute->show(); + + QPalette pal = palette(); + pal.setColor(QPalette::Window, Qt::black); + setPalette(pal); + + m_ticker.start(1000, this); + QTime t = QTime::currentTime(); + m_hour->setNumber(t.hour()); + m_minute->setNumber(t.minute()); + updateTime(); + + QAction *slideAction = new QAction("&Slide", this); + QAction *flipAction = new QAction("&Flip", this); + QAction *rotateAction = new QAction("&Rotate", this); + connect(slideAction, SIGNAL(triggered()), SLOT(chooseSlide())); + connect(flipAction, SIGNAL(triggered()), SLOT(chooseFlip())); + connect(rotateAction, SIGNAL(triggered()), SLOT(chooseRotate())); +#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) + menuBar()->addAction(slideAction); + menuBar()->addAction(flipAction); + menuBar()->addAction(rotateAction); +#else + addAction(slideAction); + addAction(flipAction); + addAction(rotateAction); + setContextMenuPolicy(Qt::ActionsContextMenu); +#endif + } + + void updateTime() { + QTime t = QTime::currentTime(); + m_hour->flipTo(t.hour()); + m_minute->flipTo(t.minute()); + QString str = t.toString("hh:mm:ss"); + str.prepend(": "); + if (m_hour->transition() == Digits::Slide) + str.prepend("Slide"); + if (m_hour->transition() == Digits::Flip) + str.prepend("Flip"); + if (m_hour->transition() == Digits::Rotate) + str.prepend("Rotate"); + setWindowTitle(str); + } + + void switchTransition(int delta) { + int i = (m_hour->transition() + delta + 3) % 3; + m_hour->setTransition(i); + m_minute->setTransition(i); + updateTime(); + } + +protected: + void resizeEvent(QResizeEvent*) { + int digitsWidth = width() / 2; + int digitsHeight = digitsWidth * 1.2; + + int y = (height() - digitsHeight) / 3; + + m_hour->resize(digitsWidth, digitsHeight); + m_hour->move(0, y); + + m_minute->resize(digitsWidth, digitsHeight); + m_minute->move(width() / 2, y); + } + + void timerEvent(QTimerEvent*) { + updateTime(); + } + + void keyPressEvent(QKeyEvent *event) { + if (event->key() == Qt::Key_Right) { + switchTransition(1); + event->accept(); + } + if (event->key() == Qt::Key_Left) { + switchTransition(-1); + event->accept(); + } + } + +private slots: + void chooseSlide() { + m_hour->setTransition(0); + m_minute->setTransition(0); + updateTime(); + } + + void chooseFlip() { + m_hour->setTransition(1); + m_minute->setTransition(1); + updateTime(); + } + + void chooseRotate() { + m_hour->setTransition(2); + m_minute->setTransition(2); + updateTime(); + } + +private: + QBasicTimer m_ticker; + Digits *m_hour; + Digits *m_minute; +}; + +#include "digiflip.moc" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + + DigiFlip time; +#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) + time.showMaximized(); +#else + time.resize(320, 240); + time.show(); +#endif + + return app.exec(); +} |