5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
410 lines
12 KiB
C++
410 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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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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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt 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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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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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