[556] | 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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| 6 | **
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| 7 | ** This file is part of the demonstration applications of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include <QtCore>
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| 43 | #include <QtGui>
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| 44 |
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| 45 | class Digits: public QWidget
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| 46 | {
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| 47 | Q_OBJECT
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| 48 |
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| 49 | public:
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| 50 |
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| 51 | enum {
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| 52 | Slide,
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| 53 | Flip,
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| 54 | Rotate
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| 55 | };
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| 56 |
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| 57 | Digits(QWidget *parent)
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| 58 | : QWidget(parent)
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| 59 | , m_number(0)
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| 60 | , m_transition(Slide)
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| 61 | {
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| 62 | setAttribute(Qt::WA_OpaquePaintEvent, true);
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| 63 | setAttribute(Qt::WA_NoSystemBackground, true);
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| 64 | connect(&m_animator, SIGNAL(frameChanged(int)), SLOT(update()));
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| 65 | m_animator.setFrameRange(0, 100);
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| 66 | m_animator.setDuration(600);
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| 67 | m_animator.setCurveShape(QTimeLine::EaseInOutCurve);
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| 68 | }
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| 69 |
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| 70 | void setTransition(int tr) {
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| 71 | m_transition = tr;
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| 72 | }
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| 73 |
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| 74 | int transition() const {
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| 75 | return m_transition;
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| 76 | }
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| 77 |
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| 78 | void setNumber(int n) {
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| 79 | if (m_number != n) {
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| 80 | m_number = qBound(0, n, 99);
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| 81 | preparePixmap();
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| 82 | update();
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| 83 | }
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| 84 | }
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| 85 |
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| 86 | void flipTo(int n) {
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| 87 | if (m_number != n) {
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| 88 | m_number = qBound(0, n, 99);
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| 89 | m_lastPixmap = m_pixmap;
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| 90 | preparePixmap();
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| 91 | m_animator.stop();
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| 92 | m_animator.start();
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | protected:
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| 97 |
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| 98 | void drawFrame(QPainter *p, const QRect &rect) {
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| 99 | p->setPen(Qt::NoPen);
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| 100 | QLinearGradient gradient(rect.topLeft(), rect.bottomLeft());
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| 101 | gradient.setColorAt(0.00, QColor(245, 245, 245));
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| 102 | gradient.setColorAt(0.49, QColor(192, 192, 192));
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| 103 | gradient.setColorAt(0.51, QColor(245, 245, 245));
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| 104 | gradient.setColorAt(1.00, QColor(192, 192, 192));
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| 105 | p->setBrush(gradient);
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| 106 | QRect r = rect;
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| 107 | p->drawRoundedRect(r, 15, 15, Qt::RelativeSize);
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| 108 | r.adjust(1, 4, -1, -4);
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| 109 | p->setPen(QColor(181, 181, 181));
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| 110 | p->setBrush(Qt::NoBrush);
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| 111 | p->drawRoundedRect(r, 15, 15, Qt::RelativeSize);
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| 112 | p->setPen(QColor(159, 159, 159));
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| 113 | int y = rect.top() + rect.height() / 2 - 1;
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| 114 | p->drawLine(rect.left(), y, rect.right(), y);
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| 115 | }
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| 116 |
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| 117 | QPixmap drawDigits(int n, const QRect &rect) {
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| 118 |
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| 119 | int scaleFactor = 2;
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| 120 | #if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)
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| 121 | if (rect.height() > 240)
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| 122 | scaleFactor = 1;
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| 123 | #endif
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| 124 |
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| 125 | QString str = QString::number(n);
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| 126 | if (str.length() == 1)
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| 127 | str.prepend("0");
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| 128 |
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| 129 | QFont font;
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| 130 | font.setFamily("Helvetica");
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| 131 | int fontHeight = scaleFactor * 0.55 * rect.height();
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| 132 | font.setPixelSize(fontHeight);
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| 133 | font.setBold(true);
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| 134 |
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| 135 | QPixmap pixmap(rect.size() * scaleFactor);
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| 136 | pixmap.fill(Qt::transparent);
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| 137 |
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| 138 | QLinearGradient gradient(QPoint(0, 0), QPoint(0, pixmap.height()));
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| 139 | gradient.setColorAt(0.00, QColor(128, 128, 128));
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| 140 | gradient.setColorAt(0.49, QColor(64, 64, 64));
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| 141 | gradient.setColorAt(0.51, QColor(128, 128, 128));
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| 142 | gradient.setColorAt(1.00, QColor(16, 16, 16));
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| 143 |
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| 144 | QPainter p;
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| 145 | p.begin(&pixmap);
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| 146 | p.setFont(font);
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| 147 | QPen pen;
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| 148 | pen.setBrush(QBrush(gradient));
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| 149 | p.setPen(pen);
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| 150 | p.drawText(pixmap.rect(), Qt::AlignCenter, str);
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| 151 | p.end();
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| 152 |
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| 153 | return pixmap.scaledToWidth(width(), Qt::SmoothTransformation);
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| 154 | }
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| 155 |
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| 156 | void preparePixmap() {
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| 157 | m_pixmap = QPixmap(size());
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| 158 | m_pixmap.fill(Qt::transparent);
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| 159 | QPainter p;
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| 160 | p.begin(&m_pixmap);
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| 161 | p.drawPixmap(0, 0, drawDigits(m_number, rect()));
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| 162 | p.end();
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| 163 | }
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| 164 |
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| 165 | void resizeEvent(QResizeEvent*) {
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| 166 | preparePixmap();
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| 167 | update();
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| 168 | }
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| 169 |
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| 170 | void paintStatic() {
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| 171 | QPainter p(this);
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| 172 | p.fillRect(rect(), Qt::black);
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| 173 |
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| 174 | int pad = width() / 10;
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| 175 | drawFrame(&p, rect().adjusted(pad, pad, -pad, -pad));
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| 176 | p.drawPixmap(0, 0, m_pixmap);
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| 177 | }
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| 178 |
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| 179 | void paintSlide() {
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| 180 | QPainter p(this);
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| 181 | p.fillRect(rect(), Qt::black);
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| 182 |
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| 183 | int pad = width() / 10;
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| 184 | QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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| 185 | drawFrame(&p, fr);
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| 186 | p.setClipRect(fr);
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| 187 |
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| 188 | int y = height() * m_animator.currentFrame() / 100;
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| 189 | p.drawPixmap(0, y, m_lastPixmap);
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| 190 | p.drawPixmap(0, y - height(), m_pixmap);
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| 191 | }
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| 192 |
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| 193 | void paintFlip() {
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| 194 | QPainter p(this);
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| 195 | #if !defined(Q_OS_SYMBIAN) && !defined(Q_OS_WINCE_WM)
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| 196 | p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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| 197 | p.setRenderHint(QPainter::Antialiasing, true);
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| 198 | #endif
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| 199 | p.fillRect(rect(), Qt::black);
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| 200 |
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| 201 | int hw = width() / 2;
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| 202 | int hh = height() / 2;
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| 203 |
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| 204 | // behind is the new pixmap
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| 205 | int pad = width() / 10;
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| 206 | QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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| 207 | drawFrame(&p, fr);
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| 208 | p.drawPixmap(0, 0, m_pixmap);
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| 209 |
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| 210 | int index = m_animator.currentFrame();
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| 211 |
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| 212 | if (index <= 50) {
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| 213 |
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| 214 | // the top part of the old pixmap is flipping
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| 215 | int angle = -180 * index / 100;
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| 216 | QTransform transform;
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| 217 | transform.translate(hw, hh);
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| 218 | transform.rotate(angle, Qt::XAxis);
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| 219 | p.setTransform(transform);
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| 220 | drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh));
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| 221 | p.drawPixmap(-hw, -hh, m_lastPixmap);
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| 222 |
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| 223 | // the bottom part is still the old pixmap
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| 224 | p.resetTransform();
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| 225 | p.setClipRect(0, hh, width(), hh);
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| 226 | drawFrame(&p, fr);
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| 227 | p.drawPixmap(0, 0, m_lastPixmap);
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| 228 | } else {
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| 229 |
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| 230 | p.setClipRect(0, hh, width(), hh);
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| 231 |
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| 232 | // the bottom part is still the old pixmap
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| 233 | drawFrame(&p, fr);
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| 234 | p.drawPixmap(0, 0, m_lastPixmap);
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| 235 |
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| 236 | // the bottom part of the new pixmap is flipping
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| 237 | int angle = 180 - 180 * m_animator.currentFrame() / 100;
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| 238 | QTransform transform;
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| 239 | transform.translate(hw, hh);
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| 240 | transform.rotate(angle, Qt::XAxis);
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| 241 | p.setTransform(transform);
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| 242 | drawFrame(&p, fr.adjusted(-hw, -hh, -hw, -hh));
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| 243 | p.drawPixmap(-hw, -hh, m_pixmap);
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| 244 |
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| 245 | }
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| 246 |
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| 247 | }
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| 248 |
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| 249 | void paintRotate() {
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| 250 | QPainter p(this);
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| 251 |
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| 252 | int pad = width() / 10;
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| 253 | QRect fr = rect().adjusted(pad, pad, -pad, -pad);
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| 254 | drawFrame(&p, fr);
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| 255 | p.setClipRect(fr);
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| 256 |
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| 257 | int angle1 = -180 * m_animator.currentFrame() / 100;
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| 258 | int angle2 = 180 - 180 * m_animator.currentFrame() / 100;
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| 259 | int angle = (m_animator.currentFrame() <= 50) ? angle1 : angle2;
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| 260 | QPixmap pix = (m_animator.currentFrame() <= 50) ? m_lastPixmap : m_pixmap;
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| 261 |
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| 262 | QTransform transform;
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| 263 | transform.translate(width() / 2, height() / 2);
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| 264 | transform.rotate(angle, Qt::XAxis);
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| 265 |
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| 266 | p.setTransform(transform);
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| 267 | p.setRenderHint(QPainter::SmoothPixmapTransform, true);
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| 268 | p.drawPixmap(-width() / 2, -height() / 2, pix);
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| 269 | }
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| 270 |
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| 271 | void paintEvent(QPaintEvent *event) {
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| 272 | Q_UNUSED(event);
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| 273 | if (m_animator.state() == QTimeLine::Running) {
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| 274 | if (m_transition == Slide)
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| 275 | paintSlide();
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| 276 | if (m_transition == Flip)
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| 277 | paintFlip();
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| 278 | if (m_transition == Rotate)
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| 279 | paintRotate();
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| 280 | } else {
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| 281 | paintStatic();
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| 282 | }
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| 283 | }
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| 284 |
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| 285 | private:
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| 286 | int m_number;
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| 287 | int m_transition;
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| 288 | QPixmap m_pixmap;
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| 289 | QPixmap m_lastPixmap;
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| 290 | QTimeLine m_animator;
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| 291 | };
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| 292 |
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| 293 | class DigiFlip : public QMainWindow
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| 294 | {
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| 295 | Q_OBJECT
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| 296 |
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| 297 | public:
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| 298 | DigiFlip(QWidget *parent = 0)
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| 299 | : QMainWindow(parent)
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| 300 | {
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| 301 | m_hour = new Digits(this);
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| 302 | m_hour->show();
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| 303 | m_minute = new Digits(this);
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| 304 | m_minute->show();
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| 305 |
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| 306 | QPalette pal = palette();
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| 307 | pal.setColor(QPalette::Window, Qt::black);
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| 308 | setPalette(pal);
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| 309 |
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| 310 | m_ticker.start(1000, this);
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| 311 | QTime t = QTime::currentTime();
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| 312 | m_hour->setNumber(t.hour());
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| 313 | m_minute->setNumber(t.minute());
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| 314 | updateTime();
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| 315 |
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| 316 | QAction *slideAction = new QAction("&Slide", this);
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| 317 | QAction *flipAction = new QAction("&Flip", this);
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| 318 | QAction *rotateAction = new QAction("&Rotate", this);
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| 319 | connect(slideAction, SIGNAL(triggered()), SLOT(chooseSlide()));
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| 320 | connect(flipAction, SIGNAL(triggered()), SLOT(chooseFlip()));
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| 321 | connect(rotateAction, SIGNAL(triggered()), SLOT(chooseRotate()));
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| 322 | #if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)
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| 323 | menuBar()->addAction(slideAction);
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| 324 | menuBar()->addAction(flipAction);
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| 325 | menuBar()->addAction(rotateAction);
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| 326 | #else
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| 327 | addAction(slideAction);
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| 328 | addAction(flipAction);
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| 329 | addAction(rotateAction);
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| 330 | setContextMenuPolicy(Qt::ActionsContextMenu);
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| 331 | #endif
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| 332 | }
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| 333 |
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| 334 | void updateTime() {
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| 335 | QTime t = QTime::currentTime();
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| 336 | m_hour->flipTo(t.hour());
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| 337 | m_minute->flipTo(t.minute());
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| 338 | QString str = t.toString("hh:mm:ss");
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| 339 | str.prepend(": ");
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| 340 | if (m_hour->transition() == Digits::Slide)
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| 341 | str.prepend("Slide");
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| 342 | if (m_hour->transition() == Digits::Flip)
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| 343 | str.prepend("Flip");
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| 344 | if (m_hour->transition() == Digits::Rotate)
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| 345 | str.prepend("Rotate");
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| 346 | setWindowTitle(str);
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| 347 | }
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| 348 |
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| 349 | void switchTransition(int delta) {
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| 350 | int i = (m_hour->transition() + delta + 3) % 3;
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| 351 | m_hour->setTransition(i);
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| 352 | m_minute->setTransition(i);
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| 353 | updateTime();
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| 354 | }
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| 355 |
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| 356 | protected:
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| 357 | void resizeEvent(QResizeEvent*) {
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| 358 | int digitsWidth = width() / 2;
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| 359 | int digitsHeight = digitsWidth * 1.2;
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| 360 |
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| 361 | int y = (height() - digitsHeight) / 3;
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| 362 |
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| 363 | m_hour->resize(digitsWidth, digitsHeight);
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| 364 | m_hour->move(0, y);
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| 365 |
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| 366 | m_minute->resize(digitsWidth, digitsHeight);
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| 367 | m_minute->move(width() / 2, y);
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| 368 | }
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| 369 |
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| 370 | void timerEvent(QTimerEvent*) {
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| 371 | updateTime();
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| 372 | }
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| 373 |
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| 374 | void keyPressEvent(QKeyEvent *event) {
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| 375 | if (event->key() == Qt::Key_Right) {
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| 376 | switchTransition(1);
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| 377 | event->accept();
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| 378 | }
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| 379 | if (event->key() == Qt::Key_Left) {
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| 380 | switchTransition(-1);
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| 381 | event->accept();
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| 382 | }
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| 383 | }
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| 384 |
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| 385 | private slots:
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| 386 | void chooseSlide() {
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| 387 | m_hour->setTransition(0);
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| 388 | m_minute->setTransition(0);
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| 389 | updateTime();
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| 390 | }
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| 391 |
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| 392 | void chooseFlip() {
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| 393 | m_hour->setTransition(1);
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| 394 | m_minute->setTransition(1);
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| 395 | updateTime();
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| 396 | }
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| 397 |
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| 398 | void chooseRotate() {
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| 399 | m_hour->setTransition(2);
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| 400 | m_minute->setTransition(2);
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| 401 | updateTime();
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| 402 | }
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| 403 |
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| 404 | private:
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| 405 | QBasicTimer m_ticker;
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| 406 | Digits *m_hour;
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| 407 | Digits *m_minute;
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| 408 | };
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| 409 |
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| 410 | #include "digiflip.moc"
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| 411 |
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| 412 | int main(int argc, char *argv[])
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| 413 | {
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| 414 | QApplication app(argc, argv);
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| 415 |
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| 416 | DigiFlip time;
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| 417 | #if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)
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| 418 | time.showMaximized();
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| 419 | #else
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| 420 | time.resize(320, 240);
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| 421 | time.show();
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| 422 | #endif
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| 423 |
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| 424 | return app.exec();
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| 425 | }
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