--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/embedded/digiflip/digiflip.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,425 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+#include <QtGui>
+
+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();
+}