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qt4-x11/doc/html/demos-embedded-digiflip-digiflip-cpp.html
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<h1 class="title">digiflip.cpp Example File</h1>
<span class="small-subtitle">demos/embedded/digiflip/digiflip.cpp</span>
<!-- $$$demos/embedded/digiflip/digiflip.cpp-description -->
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<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include &lt;QtCore&gt;</span>
<span class="preprocessor">#include &lt;QtGui&gt;</span>
<span class="keyword">class</span> Digits: <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
<span class="keyword">enum</span> {
Slide<span class="operator">,</span>
Flip<span class="operator">,</span>
Rotate
};
Digits(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qwidget.html">QWidget</a></span>(parent)
<span class="operator">,</span> m_number(<span class="number">0</span>)
<span class="operator">,</span> m_transition(Slide)
{
setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_OpaquePaintEvent<span class="operator">,</span> <span class="keyword">true</span>);
setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_NoSystemBackground<span class="operator">,</span> <span class="keyword">true</span>);
connect(<span class="operator">&amp;</span>m_animator<span class="operator">,</span> SIGNAL(frameChanged(<span class="type">int</span>))<span class="operator">,</span> SLOT(update()));
m_animator<span class="operator">.</span>setFrameRange(<span class="number">0</span><span class="operator">,</span> <span class="number">100</span>);
m_animator<span class="operator">.</span>setDuration(<span class="number">600</span>);
m_animator<span class="operator">.</span>setCurveShape(<span class="type"><a href="qtimeline.html">QTimeLine</a></span><span class="operator">::</span>EaseInOutCurve);
}
<span class="type">void</span> setTransition(<span class="type">int</span> tr) {
m_transition <span class="operator">=</span> tr;
}
<span class="type">int</span> transition() <span class="keyword">const</span> {
<span class="keyword">return</span> m_transition;
}
<span class="type">void</span> setNumber(<span class="type">int</span> n) {
<span class="keyword">if</span> (m_number <span class="operator">!</span><span class="operator">=</span> n) {
m_number <span class="operator">=</span> <a href="qtglobal.html#qBound">qBound</a>(<span class="number">0</span><span class="operator">,</span> n<span class="operator">,</span> <span class="number">99</span>);
preparePixmap();
update();
}
}
<span class="type">void</span> flipTo(<span class="type">int</span> n) {
<span class="keyword">if</span> (m_number <span class="operator">!</span><span class="operator">=</span> n) {
m_number <span class="operator">=</span> <a href="qtglobal.html#qBound">qBound</a>(<span class="number">0</span><span class="operator">,</span> n<span class="operator">,</span> <span class="number">99</span>);
m_lastPixmap <span class="operator">=</span> m_pixmap;
preparePixmap();
m_animator<span class="operator">.</span>stop();
m_animator<span class="operator">.</span>start();
}
}
<span class="keyword">protected</span>:
<span class="type">void</span> drawFrame(<span class="type"><a href="qpainter.html">QPainter</a></span> <span class="operator">*</span>p<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> <span class="operator">&amp;</span>rect) {
p<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoPen);
<span class="type"><a href="qlineargradient.html">QLinearGradient</a></span> gradient(rect<span class="operator">.</span>topLeft()<span class="operator">,</span> rect<span class="operator">.</span>bottomLeft());
gradient<span class="operator">.</span>setColorAt(<span class="number">0.00</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">245</span><span class="operator">,</span> <span class="number">245</span><span class="operator">,</span> <span class="number">245</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">0.49</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">192</span><span class="operator">,</span> <span class="number">192</span><span class="operator">,</span> <span class="number">192</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">0.51</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">245</span><span class="operator">,</span> <span class="number">245</span><span class="operator">,</span> <span class="number">245</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">1.00</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">192</span><span class="operator">,</span> <span class="number">192</span><span class="operator">,</span> <span class="number">192</span>));
p<span class="operator">-</span><span class="operator">&gt;</span>setBrush(gradient);
<span class="type"><a href="qrect.html">QRect</a></span> r <span class="operator">=</span> rect;
p<span class="operator">-</span><span class="operator">&gt;</span>drawRoundedRect(r<span class="operator">,</span> <span class="number">15</span><span class="operator">,</span> <span class="number">15</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RelativeSize);
r<span class="operator">.</span>adjust(<span class="number">1</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="operator">-</span><span class="number">4</span>);
p<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">181</span><span class="operator">,</span> <span class="number">181</span><span class="operator">,</span> <span class="number">181</span>));
p<span class="operator">-</span><span class="operator">&gt;</span>setBrush(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoBrush);
p<span class="operator">-</span><span class="operator">&gt;</span>drawRoundedRect(r<span class="operator">,</span> <span class="number">15</span><span class="operator">,</span> <span class="number">15</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RelativeSize);
p<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">159</span><span class="operator">,</span> <span class="number">159</span><span class="operator">,</span> <span class="number">159</span>));
<span class="type">int</span> y <span class="operator">=</span> rect<span class="operator">.</span>top() <span class="operator">+</span> rect<span class="operator">.</span>height() <span class="operator">/</span> <span class="number">2</span> <span class="operator">-</span> <span class="number">1</span>;
p<span class="operator">-</span><span class="operator">&gt;</span>drawLine(rect<span class="operator">.</span>left()<span class="operator">,</span> y<span class="operator">,</span> rect<span class="operator">.</span>right()<span class="operator">,</span> y);
}
<span class="type"><a href="qpixmap.html">QPixmap</a></span> drawDigits(<span class="type">int</span> n<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> <span class="operator">&amp;</span>rect) {
<span class="type">int</span> scaleFactor <span class="operator">=</span> <span class="number">2</span>;
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)</span>
<span class="keyword">if</span> (rect<span class="operator">.</span>height() <span class="operator">&gt;</span> <span class="number">240</span>)
scaleFactor <span class="operator">=</span> <span class="number">1</span>;
<span class="preprocessor">#endif</span>
<span class="type"><a href="qstring.html">QString</a></span> str <span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(n);
<span class="keyword">if</span> (str<span class="operator">.</span>length() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>)
str<span class="operator">.</span>prepend(<span class="string">&quot;0&quot;</span>);
<span class="type"><a href="qfont.html">QFont</a></span> font;
font<span class="operator">.</span>setFamily(<span class="string">&quot;Helvetica&quot;</span>);
<span class="type">int</span> fontHeight <span class="operator">=</span> scaleFactor <span class="operator">*</span> <span class="number">0.55</span> <span class="operator">*</span> rect<span class="operator">.</span>height();
font<span class="operator">.</span>setPixelSize(fontHeight);
font<span class="operator">.</span>setBold(<span class="keyword">true</span>);
<span class="type"><a href="qpixmap.html">QPixmap</a></span> pixmap(rect<span class="operator">.</span>size() <span class="operator">*</span> scaleFactor);
pixmap<span class="operator">.</span>fill(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>transparent);
<span class="type"><a href="qlineargradient.html">QLinearGradient</a></span> gradient(<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">,</span> <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> pixmap<span class="operator">.</span>height()));
gradient<span class="operator">.</span>setColorAt(<span class="number">0.00</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">128</span><span class="operator">,</span> <span class="number">128</span><span class="operator">,</span> <span class="number">128</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">0.49</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">64</span><span class="operator">,</span> <span class="number">64</span><span class="operator">,</span> <span class="number">64</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">0.51</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">128</span><span class="operator">,</span> <span class="number">128</span><span class="operator">,</span> <span class="number">128</span>));
gradient<span class="operator">.</span>setColorAt(<span class="number">1.00</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">16</span><span class="operator">,</span> <span class="number">16</span><span class="operator">,</span> <span class="number">16</span>));
<span class="type"><a href="qpainter.html">QPainter</a></span> p;
p<span class="operator">.</span>begin(<span class="operator">&amp;</span>pixmap);
p<span class="operator">.</span>setFont(font);
<span class="type"><a href="qpen.html">QPen</a></span> pen;
pen<span class="operator">.</span>setBrush(<span class="type"><a href="qbrush.html">QBrush</a></span>(gradient));
p<span class="operator">.</span>setPen(pen);
p<span class="operator">.</span>drawText(pixmap<span class="operator">.</span>rect()<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter<span class="operator">,</span> str);
p<span class="operator">.</span>end();
<span class="keyword">return</span> pixmap<span class="operator">.</span>scaledToWidth(width()<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>SmoothTransformation);
}
<span class="type">void</span> preparePixmap() {
m_pixmap <span class="operator">=</span> <span class="type"><a href="qpixmap.html">QPixmap</a></span>(size());
m_pixmap<span class="operator">.</span>fill(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>transparent);
<span class="type"><a href="qpainter.html">QPainter</a></span> p;
p<span class="operator">.</span>begin(<span class="operator">&amp;</span>m_pixmap);
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> drawDigits(m_number<span class="operator">,</span> rect()));
p<span class="operator">.</span>end();
}
<span class="type">void</span> resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span><span class="operator">*</span>) {
preparePixmap();
update();
}
<span class="type">void</span> paintStatic() {
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
p<span class="operator">.</span>fillRect(rect()<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
<span class="type">int</span> pad <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">10</span>;
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> rect()<span class="operator">.</span>adjusted(pad<span class="operator">,</span> pad<span class="operator">,</span> <span class="operator">-</span>pad<span class="operator">,</span> <span class="operator">-</span>pad));
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_pixmap);
}
<span class="type">void</span> paintSlide() {
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
p<span class="operator">.</span>fillRect(rect()<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
<span class="type">int</span> pad <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">10</span>;
<span class="type"><a href="qrect.html">QRect</a></span> fr <span class="operator">=</span> rect()<span class="operator">.</span>adjusted(pad<span class="operator">,</span> pad<span class="operator">,</span> <span class="operator">-</span>pad<span class="operator">,</span> <span class="operator">-</span>pad);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr);
p<span class="operator">.</span>setClipRect(fr);
<span class="type">int</span> y <span class="operator">=</span> height() <span class="operator">*</span> m_animator<span class="operator">.</span>currentFrame() <span class="operator">/</span> <span class="number">100</span>;
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> y<span class="operator">,</span> m_lastPixmap);
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> y <span class="operator">-</span> height()<span class="operator">,</span> m_pixmap);
}
<span class="type">void</span> paintFlip() {
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
<span class="preprocessor">#if !defined(Q_OS_SYMBIAN) &amp;&amp; !defined(Q_OS_WINCE_WM)</span>
p<span class="operator">.</span>setRenderHint(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>SmoothPixmapTransform<span class="operator">,</span> <span class="keyword">true</span>);
p<span class="operator">.</span>setRenderHint(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>Antialiasing<span class="operator">,</span> <span class="keyword">true</span>);
<span class="preprocessor">#endif</span>
p<span class="operator">.</span>fillRect(rect()<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
<span class="type">int</span> hw <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">2</span>;
<span class="type">int</span> hh <span class="operator">=</span> height() <span class="operator">/</span> <span class="number">2</span>;
<span class="comment">// behind is the new pixmap</span>
<span class="type">int</span> pad <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">10</span>;
<span class="type"><a href="qrect.html">QRect</a></span> fr <span class="operator">=</span> rect()<span class="operator">.</span>adjusted(pad<span class="operator">,</span> pad<span class="operator">,</span> <span class="operator">-</span>pad<span class="operator">,</span> <span class="operator">-</span>pad);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr);
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_pixmap);
<span class="type">int</span> index <span class="operator">=</span> m_animator<span class="operator">.</span>currentFrame();
<span class="keyword">if</span> (index <span class="operator">&lt;</span><span class="operator">=</span> <span class="number">50</span>) {
<span class="comment">// the top part of the old pixmap is flipping</span>
<span class="type">int</span> angle <span class="operator">=</span> <span class="operator">-</span><span class="number">180</span> <span class="operator">*</span> index <span class="operator">/</span> <span class="number">100</span>;
<span class="type"><a href="qtransform.html">QTransform</a></span> transform;
transform<span class="operator">.</span>translate(hw<span class="operator">,</span> hh);
transform<span class="operator">.</span>rotate(angle<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>XAxis);
p<span class="operator">.</span>setTransform(transform);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr<span class="operator">.</span>adjusted(<span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh<span class="operator">,</span> <span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh));
p<span class="operator">.</span>drawPixmap(<span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh<span class="operator">,</span> m_lastPixmap);
<span class="comment">// the bottom part is still the old pixmap</span>
p<span class="operator">.</span>resetTransform();
p<span class="operator">.</span>setClipRect(<span class="number">0</span><span class="operator">,</span> hh<span class="operator">,</span> width()<span class="operator">,</span> hh);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr);
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_lastPixmap);
} <span class="keyword">else</span> {
p<span class="operator">.</span>setClipRect(<span class="number">0</span><span class="operator">,</span> hh<span class="operator">,</span> width()<span class="operator">,</span> hh);
<span class="comment">// the bottom part is still the old pixmap</span>
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr);
p<span class="operator">.</span>drawPixmap(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_lastPixmap);
<span class="comment">// the bottom part of the new pixmap is flipping</span>
<span class="type">int</span> angle <span class="operator">=</span> <span class="number">180</span> <span class="operator">-</span> <span class="number">180</span> <span class="operator">*</span> m_animator<span class="operator">.</span>currentFrame() <span class="operator">/</span> <span class="number">100</span>;
<span class="type"><a href="qtransform.html">QTransform</a></span> transform;
transform<span class="operator">.</span>translate(hw<span class="operator">,</span> hh);
transform<span class="operator">.</span>rotate(angle<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>XAxis);
p<span class="operator">.</span>setTransform(transform);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr<span class="operator">.</span>adjusted(<span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh<span class="operator">,</span> <span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh));
p<span class="operator">.</span>drawPixmap(<span class="operator">-</span>hw<span class="operator">,</span> <span class="operator">-</span>hh<span class="operator">,</span> m_pixmap);
}
}
<span class="type">void</span> paintRotate() {
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
<span class="type">int</span> pad <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">10</span>;
<span class="type"><a href="qrect.html">QRect</a></span> fr <span class="operator">=</span> rect()<span class="operator">.</span>adjusted(pad<span class="operator">,</span> pad<span class="operator">,</span> <span class="operator">-</span>pad<span class="operator">,</span> <span class="operator">-</span>pad);
drawFrame(<span class="operator">&amp;</span>p<span class="operator">,</span> fr);
p<span class="operator">.</span>setClipRect(fr);
<span class="type">int</span> angle1 <span class="operator">=</span> <span class="operator">-</span><span class="number">180</span> <span class="operator">*</span> m_animator<span class="operator">.</span>currentFrame() <span class="operator">/</span> <span class="number">100</span>;
<span class="type">int</span> angle2 <span class="operator">=</span> <span class="number">180</span> <span class="operator">-</span> <span class="number">180</span> <span class="operator">*</span> m_animator<span class="operator">.</span>currentFrame() <span class="operator">/</span> <span class="number">100</span>;
<span class="type">int</span> angle <span class="operator">=</span> (m_animator<span class="operator">.</span>currentFrame() <span class="operator">&lt;</span><span class="operator">=</span> <span class="number">50</span>) <span class="operator">?</span> angle1 : angle2;
<span class="type"><a href="qpixmap.html">QPixmap</a></span> pix <span class="operator">=</span> (m_animator<span class="operator">.</span>currentFrame() <span class="operator">&lt;</span><span class="operator">=</span> <span class="number">50</span>) <span class="operator">?</span> m_lastPixmap : m_pixmap;
<span class="type"><a href="qtransform.html">QTransform</a></span> transform;
transform<span class="operator">.</span>translate(width() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> height() <span class="operator">/</span> <span class="number">2</span>);
transform<span class="operator">.</span>rotate(angle<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>XAxis);
p<span class="operator">.</span>setTransform(transform);
p<span class="operator">.</span>setRenderHint(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>SmoothPixmapTransform<span class="operator">,</span> <span class="keyword">true</span>);
p<span class="operator">.</span>drawPixmap(<span class="operator">-</span>width() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> <span class="operator">-</span>height() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> pix);
}
<span class="type">void</span> paintEvent(<span class="type"><a href="qpaintevent.html">QPaintEvent</a></span> <span class="operator">*</span>event) {
Q_UNUSED(event);
<span class="keyword">if</span> (m_animator<span class="operator">.</span>state() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qtimeline.html">QTimeLine</a></span><span class="operator">::</span>Running) {
<span class="keyword">if</span> (m_transition <span class="operator">=</span><span class="operator">=</span> Slide)
paintSlide();
<span class="keyword">if</span> (m_transition <span class="operator">=</span><span class="operator">=</span> Flip)
paintFlip();
<span class="keyword">if</span> (m_transition <span class="operator">=</span><span class="operator">=</span> Rotate)
paintRotate();
} <span class="keyword">else</span> {
paintStatic();
}
}
<span class="keyword">private</span>:
<span class="type">int</span> m_number;
<span class="type">int</span> m_transition;
<span class="type"><a href="qpixmap.html">QPixmap</a></span> m_pixmap;
<span class="type"><a href="qpixmap.html">QPixmap</a></span> m_lastPixmap;
<span class="type"><a href="qtimeline.html">QTimeLine</a></span> m_animator;
};
<span class="keyword">class</span> DigiFlip : <span class="keyword">public</span> <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
DigiFlip(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>)
: <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>(parent)
{
m_hour <span class="operator">=</span> <span class="keyword">new</span> Digits(<span class="keyword">this</span>);
m_hour<span class="operator">-</span><span class="operator">&gt;</span>show();
m_minute <span class="operator">=</span> <span class="keyword">new</span> Digits(<span class="keyword">this</span>);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>show();
<span class="type"><a href="qpalette.html">QPalette</a></span> pal <span class="operator">=</span> palette();
pal<span class="operator">.</span>setColor(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
setPalette(pal);
m_ticker<span class="operator">.</span>start(<span class="number">1000</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qtime.html">QTime</a></span> t <span class="operator">=</span> <span class="type"><a href="qtime.html">QTime</a></span><span class="operator">::</span>currentTime();
m_hour<span class="operator">-</span><span class="operator">&gt;</span>setNumber(t<span class="operator">.</span>hour());
m_minute<span class="operator">-</span><span class="operator">&gt;</span>setNumber(t<span class="operator">.</span>minute());
updateTime();
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>slideAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;&amp;Slide&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>flipAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;&amp;Flip&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>rotateAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;&amp;Rotate&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
connect(slideAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(chooseSlide()));
connect(flipAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(chooseFlip()));
connect(rotateAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(chooseRotate()));
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)</span>
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(slideAction);
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(flipAction);
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(rotateAction);
<span class="preprocessor">#else</span>
addAction(slideAction);
addAction(flipAction);
addAction(rotateAction);
setContextMenuPolicy(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
<span class="preprocessor">#endif</span>
}
<span class="type">void</span> updateTime() {
<span class="type"><a href="qtime.html">QTime</a></span> t <span class="operator">=</span> <span class="type"><a href="qtime.html">QTime</a></span><span class="operator">::</span>currentTime();
m_hour<span class="operator">-</span><span class="operator">&gt;</span>flipTo(t<span class="operator">.</span>hour());
m_minute<span class="operator">-</span><span class="operator">&gt;</span>flipTo(t<span class="operator">.</span>minute());
<span class="type"><a href="qstring.html">QString</a></span> str <span class="operator">=</span> t<span class="operator">.</span>toString(<span class="string">&quot;hh:mm:ss&quot;</span>);
str<span class="operator">.</span>prepend(<span class="string">&quot;: &quot;</span>);
<span class="keyword">if</span> (m_hour<span class="operator">-</span><span class="operator">&gt;</span>transition() <span class="operator">=</span><span class="operator">=</span> Digits<span class="operator">::</span>Slide)
str<span class="operator">.</span>prepend(<span class="string">&quot;Slide&quot;</span>);
<span class="keyword">if</span> (m_hour<span class="operator">-</span><span class="operator">&gt;</span>transition() <span class="operator">=</span><span class="operator">=</span> Digits<span class="operator">::</span>Flip)
str<span class="operator">.</span>prepend(<span class="string">&quot;Flip&quot;</span>);
<span class="keyword">if</span> (m_hour<span class="operator">-</span><span class="operator">&gt;</span>transition() <span class="operator">=</span><span class="operator">=</span> Digits<span class="operator">::</span>Rotate)
str<span class="operator">.</span>prepend(<span class="string">&quot;Rotate&quot;</span>);
setWindowTitle(str);
}
<span class="type">void</span> switchTransition(<span class="type">int</span> delta) {
<span class="type">int</span> i <span class="operator">=</span> (m_hour<span class="operator">-</span><span class="operator">&gt;</span>transition() <span class="operator">+</span> delta <span class="operator">+</span> <span class="number">3</span>) <span class="operator">%</span> <span class="number">3</span>;
m_hour<span class="operator">-</span><span class="operator">&gt;</span>setTransition(i);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>setTransition(i);
updateTime();
}
<span class="keyword">protected</span>:
<span class="type">void</span> resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span><span class="operator">*</span>) {
<span class="type">int</span> digitsWidth <span class="operator">=</span> width() <span class="operator">/</span> <span class="number">2</span>;
<span class="type">int</span> digitsHeight <span class="operator">=</span> digitsWidth <span class="operator">*</span> <span class="number">1.2</span>;
<span class="type">int</span> y <span class="operator">=</span> (height() <span class="operator">-</span> digitsHeight) <span class="operator">/</span> <span class="number">3</span>;
m_hour<span class="operator">-</span><span class="operator">&gt;</span>resize(digitsWidth<span class="operator">,</span> digitsHeight);
m_hour<span class="operator">-</span><span class="operator">&gt;</span>move(<span class="number">0</span><span class="operator">,</span> y);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>resize(digitsWidth<span class="operator">,</span> digitsHeight);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>move(width() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> y);
}
<span class="type">void</span> timerEvent(<span class="type"><a href="qtimerevent.html">QTimerEvent</a></span><span class="operator">*</span>) {
updateTime();
}
<span class="type">void</span> keyPressEvent(<span class="type"><a href="qkeyevent.html">QKeyEvent</a></span> <span class="operator">*</span>event) {
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">&gt;</span>key() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Right) {
switchTransition(<span class="number">1</span>);
event<span class="operator">-</span><span class="operator">&gt;</span>accept();
}
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">&gt;</span>key() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Left) {
switchTransition(<span class="operator">-</span><span class="number">1</span>);
event<span class="operator">-</span><span class="operator">&gt;</span>accept();
}
}
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> chooseSlide() {
m_hour<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">0</span>);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">0</span>);
updateTime();
}
<span class="type">void</span> chooseFlip() {
m_hour<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">1</span>);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">1</span>);
updateTime();
}
<span class="type">void</span> chooseRotate() {
m_hour<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">2</span>);
m_minute<span class="operator">-</span><span class="operator">&gt;</span>setTransition(<span class="number">2</span>);
updateTime();
}
<span class="keyword">private</span>:
<span class="type"><a href="qbasictimer.html">QBasicTimer</a></span> m_ticker;
Digits <span class="operator">*</span>m_hour;
Digits <span class="operator">*</span>m_minute;
};
<span class="preprocessor">#include &quot;digiflip.moc&quot;</span>
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span>argv<span class="operator">[</span><span class="operator">]</span>)
{
<span class="type"><a href="qapplication.html">QApplication</a></span> app(argc<span class="operator">,</span> argv);
DigiFlip time;
<span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM)</span>
time<span class="operator">.</span>showMaximized();
<span class="preprocessor">#else</span>
time<span class="operator">.</span>resize(<span class="number">320</span><span class="operator">,</span> <span class="number">240</span>);
time<span class="operator">.</span>show();
<span class="preprocessor">#endif</span>
<span class="keyword">return</span> app<span class="operator">.</span>exec();
}</pre>
</div>
<!-- @@@demos/embedded/digiflip/digiflip.cpp -->
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License version 1.3</a> as published by the Free Software Foundation.</p>
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Documentation sources may be obtained from <a href="http://www.qt-project.org">
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