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Adding ./doc from boost

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Reviewer: Lauro Moura <lauro.neto@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>
This commit is contained in:
Lauro Neto 2010-04-27 18:12:50 -03:00 • committed by Renato Filho
commit aaece960d3
1108 changed files with 70655 additions and 0 deletions
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68
doc/codesnippets/doc/src/snippets/accessibilityfactorysnippet.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
//! [0]
QAccessibleInterface *sliderFactory(const QString &classname, QObject *object)
{
QAccessibleInterface *interface = 0;
if (classname == "QSlider" && object && object->isWidgetType())
interface = new SliderInterface(classname,
static_cast<QWidget *>(object));
return interface;
}
int main(int argv, char **args)
{
QApplication app(argv, args);
QAccessible::installFactory(sliderFactory);
//! [0]
QMainWindow mainWindow;
mainWindow.show();
return app.exec();
//! [1]
}
//! [1]

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
class SliderPlugin : public QAccessiblePlugin
{
public:
SliderPlugin() {}
QStringList keys() const;
QAccessibleInterface *create(const QString &classname, QObject *object);
};
//! [0]
QStringList SliderPlugin::keys() const
{
return QStringList() << "QSlider";
}
//! [0]
//! [1]
QAccessibleInterface *SliderPlugin::create(const QString &classname, QObject *object)
{
QAccessibleInterface *interface = 0;
if (classname == "QSlider" && object && object->isWidgetType())
interface = new AccessibleSlider(classname, static_cast<QWidget *>(object));
return interface;
}
//! [1]
//! [2]
Q_EXPORT_STATIC_PLUGIN(SliderPlugin)
Q_EXPORT_PLUGIN2(acc_sliderplugin, SliderPlugin)
//! [2]

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//! [0]
QAccessibleSlider::QAccessibleSlider(QWidget *w)
: QAccessibleAbstractSlider(w)
{
Q_ASSERT(slider());
addControllingSignal(QLatin1String("valueChanged(int)"));
}
//! [0]
QSlider *QAccessibleSlider::slider() const
{
return qobject_cast<QSlider*>(object());
}
//! [1]
QRect QAccessibleSlider::rect(int child) const
{
//! [1]
QRect rect;
if (!slider()->isVisible())
return rect;
const QStyleOptionSlider option = qt_qsliderStyleOption(slider());
QRect srect = slider()->style()->subControlRect(QStyle::CC_Slider, &option,
QStyle::SC_SliderHandle, slider());
//! [2]
switch (child) {
case PageLeft:
if (slider()->orientation() == Qt::Vertical)
rect = QRect(0, 0, slider()->width(), srect.y());
else
rect = QRect(0, 0, srect.x(), slider()->height());
break;
case Position:
rect = srect;
break;
case PageRight:
if (slider()->orientation() == Qt::Vertical)
rect = QRect(0, srect.y() + srect.height(), slider()->width(), slider()->height()- srect.y() - srect.height());
else
rect = QRect(srect.x() + srect.width(), 0, slider()->width() - srect.x() - srect.width(), slider()->height());
break;
default:
return QAccessibleAbstractSlider::rect(child);
}
//! [2] //! [3]
QPoint tp = slider()->mapToGlobal(QPoint(0,0));
return QRect(tp.x() + rect.x(), tp.y() + rect.y(), rect.width(), rect.height());
}
//! [3]
int QAccessibleSlider::childCount() const
{
if (!slider()->isVisible())
return 0;
return PageRight;
}
//! [4]
QString QAccessibleSlider::text(Text t, int child) const
{
if (!slider()->isVisible())
return QString();
switch (t) {
case Value:
if (!child || child == 2)
return QString::number(slider()->value());
return QString();
case Name:
switch (child) {
case PageLeft:
return slider()->orientation() == Qt::Horizontal ?
QSlider::tr("Page left") : QSlider::tr("Page up");
case Position:
return QSlider::tr("Position");
case PageRight:
return slider()->orientation() == Qt::Horizontal ?
QSlider::tr("Page right") : QSlider::tr("Page down");
}
break;
default:
break;
}
return QAccessibleAbstractSlider::text(t, child);
}
//! [4]
//! [5]
QAccessible::Role QAccessibleSlider::role(int child) const
{
switch (child) {
case PageLeft:
case PageRight:
return PushButton;
case Position:
return Indicator;
default:
return Slider;
}
}
//! [5]
//! [6]
QAccessible::State QAccessibleSlider::state(int child) const
{
const State parentState = QAccessibleAbstractSlider::state(0);
//! [6]
if (child == 0)
return parentState;
// Inherit the Invisible state from parent.
State state = parentState & QAccessible::Invisible;
// Disable left/right if we are at the minimum/maximum.
const QSlider * const slider = QAccessibleSlider::slider();
//! [7]
switch (child) {
case PageLeft:
if (slider->value() <= slider->minimum())
state |= Unavailable;
break;
case PageRight:
if (slider->value() >= slider->maximum())
state |= Unavailable;
break;
case Position:
default:
break;
}
return state;
}
//! [7]
int QAccessibleSlider::defaultAction(int child) const
{
switch (child) {
case SliderSelf:
return SetFocus;
case PageLeft:
return Press;
case PageRight:
return Press;
}
return 0;
}
// Name, Description, Value, Help, Accelerator
static const char * const actionTexts[][5] =
{
{"Press", "Decreases the value of the slider", "", "", "Ctrl+L"},
{"Press", "Increaces the value of the slider", "", "", "Ctrl+R"}
};
QString QAccessibleSlider::actionText(int action, Text text, int child) const
{
if (action != Press || child < 1 || child > 2)
return QAccessibleAbstractSlider::actionText(action, text, child);
return actionTexts[child - 1][t];
}
bool QAccessibleSlider::doAction(int action, int child)
{
if (action != Press || child < 1 || child > 2)
return false;
if (child == PageLeft)
slider()->setValue(slider()->value() - slider()->pageStep());
else
slider()->setValue(slider()->value() + slider()->pageStep());
}
QAccessibleAbstractSlider::QAccessibleAbstractSlider(QWidget *w, Role r)
: QAccessibleWidgetEx(w, r)
{
Q_ASSERT(qobject_cast<QAbstractSlider *>(w));
}
QVariant QAccessibleAbstractSlider::invokeMethodEx(Method method, int child, const QVariantList &params)
{
switch (method) {
case ListSupportedMethods: {
QSet<QAccessible::Method> set;
set << ListSupportedMethods;
return qVariantFromValue(set | qvariant_cast<QSet<QAccessible::Method> >(
QAccessibleWidgetEx::invokeMethodEx(method, child, params)));
}
default:
return QAccessibleWidgetEx::invokeMethodEx(method, child, params);
}
}
QVariant QAccessibleAbstractSlider::currentValue()
{
return abstractSlider()->value();
}
void QAccessibleAbstractSlider::setCurrentValue(const QVariant &value)
{
abstractSlider()->setValue(value.toInt());
}
QVariant QAccessibleAbstractSlider::maximumValue()
{
return abstractSlider()->maximum();
}
QVariant QAccessibleAbstractSlider::minimumValue()
{
return abstractSlider()->minimum();
}
QAbstractSlider *QAccessibleAbstractSlider::abstractSlider() const
{
return static_cast<QAbstractSlider *>(object());
}

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############################################################################
##
## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
## Contact: Nokia Corporation (qt-info@nokia.com)
##
## This file is part of the documentation of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:LGPL$
## Commercial Usage
## Licensees holding valid Qt Commercial licenses may use self file in
## accordance with the Qt Commercial License Agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and Nokia.
##
## GNU Lesser General Public License Usage
## Alternatively, self file may be used under the terms of the GNU Lesser
## General Public License version 2.1 as published by the Free Software
## Foundation and appearing in the file LICENSE.LGPL included in the
## packaging of self file. Please review the following information to
## ensure the GNU Lesser General Public License version 2.1 requirements
## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## In addition, as a special exception, Nokia gives you certain
## additional rights. These rights are described in the Nokia Qt LGPL
## Exception version 1.0, included in the file LGPL_EXCEPTION.txt in self
## package.
##
## GNU General Public License Usage
## Alternatively, self 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 self 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.
##
## If you are unsure which license is appropriate for your use, please
## contact the sales department at http://www.qtsoftware.com/contact.
## $QT_END_LICENSE$
##
############################################################################
//! [0]
pixmap = QPixmap(100, 100)
pixmap.fill(Qt.transparent)
gradient = QRadialGradient(50, 50, 50, 50, 50)
gradient.setColorAt(0, QColor.fromRgbF(1, 0, 0, 1))
gradient.setColorAt(1, QColor.fromRgbF(0, 0, 0, 0))
painter = QPainter(pixmap)
painter.fillRect(0, 0, 100, 100, gradient)
channelImage = pixmap.alphaChannel()
update()
//! [0]

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doc/codesnippets/doc/src/snippets/audioeffects.cpp Normal file
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#include <QtGui>
#include <phonon/audiooutput.h>
#include <phonon/mediaobject.h>
#include <phonon/backendcapabilities.h>
#include <phonon/effect.h>
#include <phonon/effectwidget.h>
int main(int argv, char **args)
{
QApplication app(argv, args);
app.setApplicationName("Audio effect tester");
Phonon::MediaObject *mediaObject = new Phonon::MediaObject;
mediaObject->setCurrentSource(QString("/home/gvatteka/Music/Lumme-Badloop.ogg"));
Phonon::AudioOutput *audioOutput =
new Phonon::AudioOutput(Phonon::MusicCategory);
//! [0]
QList<Phonon::EffectDescription> effectDescriptions =
Phonon::BackendCapabilities::availableAudioEffects();
Phonon::EffectDescription effectDescription = effectDescriptions.at(4);
Phonon::Path path = Phonon::createPath(mediaObject, audioOutput);
//! [1]
Phonon::Effect *effect = new Phonon::Effect(effectDescription);
path.insertEffect(effect);
//! [0]
Phonon::EffectWidget *effectWidget = new Phonon::EffectWidget(effect);
effectWidget->show();
//! [1]
mediaObject->play();
effectWidget->setWindowTitle("Effect Name: " + effectDescription.name());
app.exec();
}

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main()
{
QWidget anyPaintDevice;
{
// PEN SNIPPET
QPainter painter;
QPen pen(Qt::red, 2); // red solid line, 2 pixels wide
painter.begin(&anyPaintDevice); // paint something
painter.setPen(pen); // set the red, wide pen
painter.drawRect(40,30, 200,100); // draw a rectangle
painter.setPen(Qt::blue); // set blue pen, 0 pixel width
painter.drawLine(40,30, 240,130); // draw a diagonal in rectangle
painter.end(); // painting done
}
{
// BRUSH SNIPPET
QPainter painter;
QBrush brush(Qt::yellow); // yellow solid pattern
painter.begin(&anyPaintDevice); // paint something
painter.setBrush(brush); // set the yellow brush
painter.setPen(Qt::NoPen); // do not draw outline
painter.drawRect(40,30, 200,100); // draw filled rectangle
painter.setBrush(Qt::NoBrush); // do not fill
painter.setPen(Qt::black); // set black pen, 0 pixel width
painter.drawRect(10,10, 30,20); // draw rectangle outline
painter.end(); // painting done
}
// LINEAR
//! [0]
linearGrad = QLinearGradient(QPointF(100, 100), QPointF(200, 200))
linearGrad.setColorAt(0, Qt.black)
linearGrad.setColorAt(1, Qt.white)
//! [0]
// RADIAL
//! [1]
radialGrad = QRadialGradient(QPointF(100, 100), 100)
radialGrad.setColorAt(0, Qt.red)
radialGrad.setColorAt(0.5, Qt.blue)
radialGrad.setColorAt(1, Qt.green)
//! [1]
}

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SOURCES += brush.cpp

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main(int argv, char **args)
{
QApplication app(argv, args);
//! [0]
gradient = QRadialGradient gradient(50, 50, 50, 50, 50)
gradient.setColorAt(0, QColor.fromRgbF(0, 1, 0, 1))
gradient.setColorAt(1, QColor.fromRgbF(0, 0, 0, 0))
brush = QBrush(gradient)
//! [0]
QWidget widget;
QPalette palette;
palette.setBrush(widget.backgroundRole(), brush);
widget.setPalette(palette);
widget.show();
return app.exec();
}

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######################################################################
# Automatically generated by qmake (2.00a) Wed Dec 14 11:46:57 2005
######################################################################
TEMPLATE = app
TARGET +=
DEPENDPATH += .
INCLUDEPATH += .
# Input
HEADERS += renderarea.h stylewidget.h
SOURCES += main.cpp renderarea.cpp stylewidget.cpp

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doc/codesnippets/doc/src/snippets/brushstyles/main.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include "stylewidget.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
StyleWidget widget;
widget.show();
return app.exec();
}

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "renderarea.h"
RenderArea::RenderArea(QBrush *brush, QWidget *parent)
: QWidget(parent)
{
currentBrush = brush;
}
QSize RenderArea::minimumSizeHint() const
{
return QSize(120, 60);
}
void RenderArea::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setPen(Qt::NoPen);
painter.setRenderHint(QPainter::Antialiasing);
if(currentBrush->style() == Qt::LinearGradientPattern) {
currentBrush = new QBrush(QLinearGradient(0, 0, width(), 60));
} else if(currentBrush->style() == Qt::RadialGradientPattern) {
QRadialGradient radial(width() / 2, 30, width() / 2, width() / 2, 30);
radial.setColorAt(0, Qt::white);
radial.setColorAt(1, Qt::black);
currentBrush = new QBrush(radial);
} else if(currentBrush->style() == Qt::ConicalGradientPattern) {
currentBrush = new QBrush(QConicalGradient(width() / 2, 30, 90));
}
painter.setBrush(*currentBrush);
QPainterPath path;
path.addRect(0, 0, parentWidget()->width(), 60);
painter.drawPath(path);
}

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef RENDERAREA_H
#define RENDERAREA_H
#include <QWidget>
class RenderArea : public QWidget
{
Q_OBJECT
public:
RenderArea(QBrush *brush, QWidget *parent = 0);
QSize minimumSizeHint() const;
protected:
void paintEvent(QPaintEvent *event);
private:
QBrush *currentBrush;
};
#endif

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "stylewidget.h"
StyleWidget::StyleWidget(QWidget *parent)
: QWidget(parent)
{
solid = new RenderArea(new QBrush(Qt::SolidPattern));
dense1 = new RenderArea(new QBrush(Qt::Dense1Pattern));
dense2 = new RenderArea(new QBrush(Qt::Dense2Pattern));
dense3 = new RenderArea(new QBrush(Qt::Dense3Pattern));
dense4 = new RenderArea(new QBrush(Qt::Dense4Pattern));
dense5 = new RenderArea(new QBrush(Qt::Dense5Pattern));
dense6 = new RenderArea(new QBrush(Qt::Dense6Pattern));
dense7 = new RenderArea(new QBrush(Qt::Dense7Pattern));
no = new RenderArea(new QBrush(Qt::NoBrush));
hor = new RenderArea(new QBrush(Qt::HorPattern));
ver = new RenderArea(new QBrush(Qt::VerPattern));
cross = new RenderArea(new QBrush(Qt::CrossPattern));
bdiag = new RenderArea(new QBrush(Qt::BDiagPattern));
fdiag = new RenderArea(new QBrush(Qt::FDiagPattern));
diagCross = new RenderArea(new QBrush(Qt::DiagCrossPattern));
linear = new RenderArea(new QBrush(QLinearGradient()));
radial = new RenderArea(new QBrush(QRadialGradient()));
conical = new RenderArea(new QBrush(QConicalGradient()));
texture = new RenderArea(new QBrush(QPixmap("qt-logo.png")));
solidLabel = new QLabel("Qt::SolidPattern");
dense1Label = new QLabel("Qt::Dense1Pattern");
dense2Label = new QLabel("Qt::Dense2Pattern");
dense3Label = new QLabel("Qt::Dense3Pattern");
dense4Label = new QLabel("Qt::Dense4Pattern");
dense5Label = new QLabel("Qt::Dense5Pattern");
dense6Label = new QLabel("Qt::Dense6Pattern");
dense7Label = new QLabel("Qt::Dense7Pattern");
noLabel = new QLabel("Qt::NoPattern");
horLabel = new QLabel("Qt::HorPattern");
verLabel = new QLabel("Qt::VerPattern");
crossLabel = new QLabel("Qt::CrossPattern");
bdiagLabel = new QLabel("Qt::BDiagPattern");
fdiagLabel = new QLabel("Qt::FDiagPattern");
diagCrossLabel = new QLabel("Qt::DiagCrossPattern");
linearLabel = new QLabel("Qt::LinearGradientPattern");
radialLabel = new QLabel("Qt::RadialGradientPattern");
conicalLabel = new QLabel("Qt::ConicalGradientPattern");
textureLabel = new QLabel("Qt::TexturePattern");
QGridLayout *layout = new QGridLayout;
layout->addWidget(solid, 0, 0);
layout->addWidget(dense1, 0, 1);
layout->addWidget(dense2, 0, 2);
layout->addWidget(solidLabel, 1, 0);
layout->addWidget(dense1Label, 1, 1);
layout->addWidget(dense2Label, 1, 2);
layout->addWidget(dense3, 2, 0 );
layout->addWidget(dense4, 2, 1);
layout->addWidget(dense5, 2, 2);
layout->addWidget(dense3Label, 3, 0);
layout->addWidget(dense4Label, 3, 1);
layout->addWidget(dense5Label, 3, 2);
layout->addWidget(dense6, 4, 0);
layout->addWidget(dense7, 4, 1);
layout->addWidget(no, 4, 2);
layout->addWidget(dense6Label, 5, 0);
layout->addWidget(dense7Label, 5, 1);
layout->addWidget(noLabel, 5, 2);
layout->addWidget(hor, 6, 0);
layout->addWidget(ver, 6, 1);
layout->addWidget(cross, 6, 2);
layout->addWidget(horLabel, 7, 0);
layout->addWidget(verLabel, 7, 1);
layout->addWidget(crossLabel, 7, 2);
layout->addWidget(bdiag, 8, 0);
layout->addWidget(fdiag, 8, 1);
layout->addWidget(diagCross, 8, 2);
layout->addWidget(bdiagLabel, 9, 0);
layout->addWidget(fdiagLabel, 9, 1);
layout->addWidget(diagCrossLabel, 9, 2);
layout->addWidget(linear, 10, 0);
layout->addWidget(radial, 10, 1);
layout->addWidget(conical, 10, 2);
layout->addWidget(linearLabel, 11, 0);
layout->addWidget(radialLabel, 11, 1);
layout->addWidget(conicalLabel, 11, 2);
layout->addWidget(texture, 12, 0, 1, 3);
layout->addWidget(textureLabel, 13, 0, 1, 3);
setLayout(layout);
QPalette newPalette = palette();
newPalette.setColor(QPalette::Window, Qt::white);
setPalette(newPalette);
setWindowTitle(tr("Brush Styles"));
resize(430, 605);
}

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef STYLEWIDGET_H
#define STYLEWIDGET_H
#include <QWidget>
#include <QPainterPath>
#include "renderarea.h"
class QLabel;
class StyleWidget : public QWidget
{
Q_OBJECT
public:
StyleWidget(QWidget *parent = 0);
private:
RenderArea *solid;
RenderArea *dense1;
RenderArea *dense2;
RenderArea *dense3;
RenderArea *dense4;
RenderArea *dense5;
RenderArea *dense6;
RenderArea *dense7;
RenderArea *no;
RenderArea *hor;
RenderArea *ver;
RenderArea *cross;
RenderArea *bdiag;
RenderArea *fdiag;
RenderArea *diagCross;
RenderArea *linear;
RenderArea *radial;
RenderArea *conical;
RenderArea *texture;
QLabel *solidLabel;
QLabel *dense1Label;
QLabel *dense2Label;
QLabel *dense3Label;
QLabel *dense4Label;
QLabel *dense5Label;
QLabel *dense6Label;
QLabel *dense7Label;
QLabel *noLabel;
QLabel *horLabel;
QLabel *verLabel;
QLabel *crossLabel;
QLabel *bdiagLabel;
QLabel *fdiagLabel;
QLabel *diagCrossLabel;
QLabel *linearLabel;
QLabel *radialLabel;
QLabel *conicalLabel;
QLabel *textureLabel;
};
#endif

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include <QBuffer>
#include <QPalette>
static void main_snippet()
{
//! [0]
buffer = QBuffer()
buffer.open(QBuffer.ReadWrite)
buffer.write("Qt rocks!")
buffer.seek(0)
ch = buffer.getChar() # ch == 'Q'
ch = buffer.getChar() # ch == 't'
ch = buffer.getChar() # ch == ' '
ch = buffer.getChar() # ch == 'r'
//! [0]
}
static void write_datastream_snippets()
{
//! [1]
byteArray = QByteArray()
buffer = QBuffer(byteArray)
buffer.open(QIODevice.WriteOnly)
out = QDataStream(buffer)
out << QApplication.palette()
//! [1]
}
static void read_datastream_snippets()
{
QByteArray byteArray;
//! [2]
palette = QPalette()
buffer = QBuffer(byteArray)
buffer.open(QIODevice.ReadOnly)
in = QDataStream(buffer)
in >> palette
//! [2]
}
static void bytearray_ptr_ctor_snippet()
{
//! [3]
byteArray = QByteArray("abc")
buffer = QBuffer(byteArray)
buffer.open(QIODevice.WriteOnly)
buffer.seek(3)
buffer.write("def")
buffer.close()
# byteArray == "abcdef"
//! [3]
}
static void setBuffer_snippet()
{
//! [4]
byteArray = QByteArray("abc")
buffer = QBuffer()
buffer.setBuffer(byteArray)
buffer.open(QIODevice.WriteOnly)
buffer.seek(3)
buffer.write("def")
buffer.close()
# byteArray == "abcdef"
//! [4]
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
main_snippet();
bytearray_ptr_ctor_snippet();
write_datastream_snippets();
read_datastream_snippets();
setBuffer_snippet();
return 0;
}

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######################################################################
# Automatically generated by qmake (1.08a) Tue Jan 4 13:19:41 2005
######################################################################
TEMPLATE = app
CONFIG -= moc
DEPENDPATH += .
INCLUDEPATH += .
# Input
SOURCES += buffer.cpp
CONFIG += qt warn_on debug create_prl link_prl
OBJECTS_DIR=.obj/debug-shared
MOC_DIR=.moc/debug-shared

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HEADERS = clipwindow.h
SOURCES = clipwindow.cpp \
main.cpp

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############################################################################
##
## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
## Contact: Nokia Corporation (qt-info@nokia.com)
##
## This file is part of the documentation of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:LGPL$
## Commercial Usage
## Licensees holding valid Qt Commercial licenses may use self file in
## accordance with the Qt Commercial License Agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and Nokia.
##
## GNU Lesser General Public License Usage
## Alternatively, self file may be used under the terms of the GNU Lesser
## General Public License version 2.1 as published by the Free Software
## Foundation and appearing in the file LICENSE.LGPL included in the
## packaging of self file. Please review the following information to
## ensure the GNU Lesser General Public License version 2.1 requirements
## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## In addition, as a special exception, Nokia gives you certain
## additional rights. These rights are described in the Nokia Qt LGPL
## Exception version 1.0, included in the file LGPL_EXCEPTION.txt in self
## package.
##
## GNU General Public License Usage
## Alternatively, self 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 self 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.
##
## If you are unsure which license is appropriate for your use, please
## contact the sales department at http://www.qtsoftware.com/contact.
## $QT_END_LICENSE$
##
############################################################################
form PySide.QtGui import *
def __init__(self, parent):
QMainWindow.__init__(self, parent)
clipboard = QApplication.clipboard()
centralWidget = QWidget(self)
currentItem = QWidget(centralWidget)
mimeTypeLabel = QLabel(tr("MIME types:"), currentItem)
mimeTypeCombo = QComboBox(currentItem)
dataLabel = QLabel(tr("Data:"), currentItem)
dataInfoLabel = QLabel("", currentItem)
previousItems = QListWidget(centralWidget)
//! [0]
connect(clipboard, SIGNAL("dataChanged()"), self, SLOT("updateClipboard()"))
//! [0]
connect(mimeTypeCombo, SIGNAL("activated(const QString &)"),
self, SLOT("updateData(const QString &))")
currentLayout = QVBoxLayout(currentItem)
currentLayout.addWidget(mimeTypeLabel)
currentLayout.addWidget(mimeTypeCombo)
currentLayout.addWidget(dataLabel)
currentLayout.addWidget(dataInfoLabel)
currentLayout.addStretch(1)
mainLayout = QHBoxLayout(centralWidget)
mainLayout.addWidget(currentItem, 1)
mainLayout.addWidget(previousItems)
setCentralWidget(centralWidget)
setWindowTitle(tr("Clipboard"))
//! [1]
def updateClipboard(self):
formats = clipboard.mimeData().formats()
data = clipboard.mimeData().data(format)
//! [1]
mimeTypeCombo.clear()
mimeTypeCombo.insertStringList(formats)
size = clipboard.mimeData().data(formats[0]).size()
Item = QListWidgetItem(previousItems)
Item.setText(tr("%1 (%2 bytes)").arg(formats[0]).arg(size))
updateData(formats[0])
//! [2]
//! [2]
def updateData(self, format)
data = clipboard.mimeData().data(format)
dataInfoLabel.setText(tr("%1 bytes").arg(data.size()))

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CLIPWINDOW_H
#define CLIPWINDOW_H
#include <QMainWindow>
class QClipboard;
class QComboBox;
class QLabel;
class QListWidget;
class QMimeData;
class QWidget;
class ClipWindow : public QMainWindow
{
Q_OBJECT
public:
ClipWindow(QWidget *parent = 0);
public slots:
void updateClipboard();
void updateData(const QString &format);
private:
int currentItem;
QClipboard *clipboard;
QComboBox *mimeTypeCombo;
QLabel *dataInfoLabel;
QListWidget *previousItems;
};
#endif

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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QApplication>
#include "clipwindow.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
ClipWindow *window = new ClipWindow;
window->resize(640, 480);
window->show();
return app.exec();
}

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//! [0]
#include <QtScriptTools>
//! [0]
//! [1]
QT += scripttools
//! [1]

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//! [0]
Outlook::Application *outlook = new Outlook::Application;
//! [0]
//! [1]
Outlook::_NameSpace *session = outlook->Session();
//! [1]
//! [2]
Outlook::NameSpace *session = outlook->Session();
//! [2]
//! [3]
Outlook::_NameSpace *tmp = outlook->Session();
Outlook::NameSpace *session = new Outlook::NameSpace(tmp);
delete tmp; // or any other use of tmp: segfault
//! [3]
//! [4]
Outlook::NameSpace *session = new Outlook::NameSpace(outlook->Session());
//! [4]

23
doc/codesnippets/doc/src/snippets/code/doc_src_appicon.qdoc Normal file
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//! [0]
IDI_ICON1 ICON DISCARDABLE "myappico.ico"
//! [0]
//! [1]
RC_FILE = myapp.rc
//! [1]
//! [2]
ICON = myapp.icns
//! [2]
//! [3]
kde-config --path icon
//! [3]
//! [4]
gnome-config --datadir
//! [4]

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//! [0]
assistant -collectionFile file
//! [0]
//! [1]
<?xml version="1.0" encoding="utf-8" ?>
<QHelpCollectionProject version="1.0">
<assistant>
<title>My Application Help</title>
<startPage>qthelp://com.mycompany.1_0_0/doc/index.html</startPage>
<currentFilter>myfilter</currentFilter>
<applicationIcon>application.png</applicationIcon>
<enableFilterFunctionality>false</enableFilterFunctionality>
<enableDocumentationManager>false</enableDocumentationManager>
<enableAddressBar visible="true">true</enableAddressBar>
<cacheDirectory>mycompany/myapplication</cacheDirectory>
<aboutMenuText>
<text>About My Application</text>
<text language="de">Über meine Applikation...</text>
</aboutMenuText>
<aboutDialog>
<file>about.txt</file>
<file language="de">ueber.txt</file>
<icon>about.png</icon>
</aboutDialog>
</assistant>
<docFiles>
<generate>
<file>
<input>myapplication-manual.qhp</input>
<output>myapplication-manual.qch</output>
</file>
</generate>
<register>
<file>myapplication-manual.qch</file>
</register>
</docFiles>
</QHelpCollectionProject>
//! [1]
//! [2]
QProcess *process = new QProcess;
QStringList args;
args << QLatin1String("-collectionFile")
<< QLatin1String("mycollection.qhc")
<< QLatin1String("-enableRemoteControl");
process->start(QLatin1String("assistant"), args);
if (!process->waitForStarted())
return;
//! [2]
//! [3]
QByteArray ba;
ba.append("setSource qthelp://com.mycompany.1_0_0/doc/index.html");
ba.append('\0');
process->write(ba);
//! [3]
//! [4]
QByteArray ba;
ba.append("hide bookmarks;");
ba.append("hide index;");
ba.append("setSource qthelp://com.mycompany.1_0_0/doc/index.html");
ba.append('\0');
process->write(ba);
//! [4]
//! [5]
<?xml version="1.0" encoding="utf-8" ?>
<QHelpCollectionProject version="1.0">
...
<docFiles>
<register>
<file>myapplication-manual.qch</file>
<file>another-manual.qch</file>
</register>
</docFiles>
</QHelpCollectionProject>
//! [5]
//! [6]
assistant -collectionFile mycollection.qhc -register myapplication-manual.qch
//! [6]
//! [7]
<?xml version="1.0" encoding="utf-8" ?>
<QHelpCollectionProject version="1.0">
<assistant>
<title>My Application Help</title>
<cacheDirectory>mycompany/myapplication</cacheDirectory>
...
</assistant>
</QHelpCollectionProject>
//! [7]
//! [8]
assistant -collectionFile mycollection.qhc
//! [8]
//! [9]
%QDesktopServices::DataLocation%/mycompany/myapplication/mycollection.qhc
//! [9]
//! [10]
qcollectiongenerator mycollection.qhcp -o mycollection.qhc
//! [10]

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//! [0]
if (*ptr == expected) {
*ptr = newval;
return !0;
}
return 0;
//! [0]
//! [1]
if (*ptr == expected) {
*ptr = newval;
return !0;
}
return 0;
//! [1]
//! [2]
++(*ptr);
return *ptr ? !0 : 0;
//! [2]
//! [3]
return ++(*ptr);
//! [3]
//! [4]
++(*ptr);
return !(ControlRegister & ZeroFlag);
//! [4]
//! [5]
--(*ptr);
return *ptr ? : 0;
//! [5]
//! [6]
return --(*ptr);
//! [6]
//! [7]
--(*ptr);
return !(ControlRegister & ZeroFlag);
//! [7]
//! [8]
tmp = *ptr;
*ptr = newval;
return tmp;
//! [8]
//! [9]
tmp = *ptr;
*ptr = newval;
return tmp;
//! [9]
//! [10]
tmp = *ptr;
*ptr += value;
return tmp;
//! [10]

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//! [0]
QTDIR=C:\Progra~1\Qt
//! [0]
//! [1]
/usr/vacpp/bin/makeC++SharedLib -o shr1.o cplussource1.o
//! [1]

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//! [0]
class Employee
{
public:
Employee() {}
Employee(const Employee &other);
Employee &operator=(const Employee &other);
private:
QString myName;
QDate myDateOfBirth;
};
//! [0]
//! [1]
QList<QString> list;
list << "A" << "B" << "C" << "D";
QListIterator<QString> i(list);
while (i.hasNext())
qDebug() << i.next();
//! [1]
//! [2]
QListIterator<QString> i(list);
i.toBack();
while (i.hasPrevious())
qDebug() << i.previous();
//! [2]
//! [3]
QMutableListIterator<int> i(list);
while (i.hasNext()) {
if (i.next() % 2 != 0)
i.remove();
}
//! [3]
//! [4]
QMutableListIterator<int> i(list);
i.toBack();
while (i.hasPrevious()) {
if (i.previous() % 2 != 0)
i.remove();
}
//! [4]
//! [5]
QMutableListIterator<int> i(list);
while (i.hasNext()) {
if (i.next() > 128)
i.setValue(128);
}
//! [5]
//! [6]
QMutableListIterator<int> i(list);
while (i.hasNext())
i.next() *= 2;
//! [6]
//! [7]
QMap<QString, QString> map;
map.insert("Paris", "France");
map.insert("Guatemala City", "Guatemala");
map.insert("Mexico City", "Mexico");
map.insert("Moscow", "Russia");
...
QMutableMapIterator<QString, QString> i(map);
while (i.hasNext()) {
if (i.next().key().endsWith("City"))
i.remove();
}
//! [7]
//! [8]
QMap<int, QWidget *> map;
QHash<int, QWidget *> hash;
QMapIterator<int, QWidget *> i(map);
while (i.hasNext()) {
i.next();
hash.insert(i.key(), i.value());
}
//! [8]
//! [9]
QMutableMapIterator<int, QWidget *> i(map);
while (i.findNext(widget))
i.remove();
//! [9]
//! [10]
QList<QString> list;
list << "A" << "B" << "C" << "D";
QList<QString>::iterator i;
for (i = list.begin(); i != list.end(); ++i)
*i = (*i).toLower();
//! [10]
//! [11]
QList<QString> list;
list << "A" << "B" << "C" << "D";
QList<QString>::iterator i = list.end();
while (i != list.begin()) {
--i;
*i = (*i).toLower();
}
//! [11]
//! [12]
QList<QString>::const_iterator i;
for (i = list.constBegin(); i != list.constEnd(); ++i)
qDebug() << *i;
//! [12]
//! [13]
QMap<int, int> map;
...
QMap<int, int>::const_iterator i;
for (i = map.constBegin(); i != map.constEnd(); ++i)
qDebug() << i.key() << ":" << i.value();
//! [13]
//! [14]
// RIGHT
const QList<int> sizes = splitter->sizes();
QList<int>::const_iterator i;
for (i = sizes.begin(); i != sizes.end(); ++i)
...
// WRONG
QList<int>::const_iterator i;
for (i = splitter->sizes().begin();
i != splitter->sizes().end(); ++i)
...
//! [14]
//! [15]
QLinkedList<QString> list;
...
QString str;
foreach (str, list)
qDebug() << str;
//! [15]
//! [16]
QLinkedList<QString> list;
...
QLinkedListIterator<QString> i(list);
while (i.hasNext())
qDebug() << i.next();
//! [16]
//! [17]
QLinkedList<QString> list;
...
foreach (QString str, list)
qDebug() << str;
//! [17]
//! [18]
QLinkedList<QString> list;
...
foreach (QString str, list) {
if (str.isEmpty())
break;
qDebug() << str;
}
//! [18]
//! [19]
QMap<QString, int> map;
...
foreach (QString str, map.keys())
qDebug() << str << ":" << map.value(str);
//! [19]
//! [20]
QMultiMap<QString, int> map;
...
foreach (QString str, map.uniqueKeys()) {
foreach (int i, map.values(str))
qDebug() << str << ":" << i;
}
//! [20]
//! [21]
forever {
...
}
//! [21]
//! [22]
CONFIG += no_keywords
//! [22]
//! [23]
QString onlyLetters(const QString &in)
{
QString out;
for (int j = 0; j < in.size(); ++j) {
if (in[j].isLetter())
out += in[j];
}
return out;
}
//! [23]

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//! [0]
QPainter painter(this);
painter.setPen(Qt::darkGreen);
painter.drawRect(1, 2, 6, 4);
//! [0]
//! [1]
QPainter painter(this);
painter.setPen(Qt::darkGreen);
painter.drawLine(2, 7, 6, 1);
//! [1]
//! [2]
QPainter painter(this);
painter.setRenderHint(
QPainter::Antialiasing);
painter.setPen(Qt::darkGreen);
painter.drawRect(1, 2, 6, 4);
//! [2]
//! [3]
QPainter painter(this);
painter.setRenderHint(
QPainter::Antialiasing);
painter.setPen(Qt::darkGreen);
painter.drawLine(2, 7, 6, 1);
//! [3]
//! [4]
QPainter painter(this);
painter.setWindow(QRect(-50, -50, 100, 100));
//! [4]
//! [5]
int side = qMin(width(), height())
int x = (width() - side / 2);
int y = (height() - side / 2);
painter.setViewport(x, y, side, side);
//! [5]

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//! [0]
qDebug() << "Widget" << widget << "at position" << widget->pos();
//! [0]
//! [1]
char *alloc(int size)
{
Q_ASSERT(size > 0);
char *ptr = new char[size];
Q_CHECK_PTR(ptr);
return ptr;
}
//! [1]
//! [2]
char *alloc(int size)
{
char *ptr;
Q_CHECK_PTR(ptr = new char[size]); // WRONG
return ptr;
}
//! [2]

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//! [0]
cd /path/to/Qt
./configure -static -prefix /path/to/Qt <other parameters>
make sub-src
//! [0]
//! [1]
cd /path/to/Qt/examples/tools/plugandpaint
//! [1]
//! [2]
make clean
PATH=/path/to/Qt/bin:$PATH
export PATH
qmake -config release
make
//! [2]
//! [3]
ldd ./application
//! [3]
//! [4]
cd /path/to/Qt/examples/tools/plugandpaint
//! [4]
//! [5]
make clean
qmake -config release
make
//! [5]
//! [6]
cd ../plugandpaintplugins
make clean
qmake -config release
make
//! [6]
//! [7]
#!/bin/sh
appname=`basename $0 | sed s,\.sh$,,`
dirname=`dirname $0`
tmp="${dirname#?}"
if [ "${dirname%$tmp}" != "/" ]; then
dirname=$PWD/$dirname
fi
LD_LIBRARY_PATH=$dirname
export LD_LIBRARY_PATH
$dirname/$appname $*
//! [7]
//! [8]
DESTDIR = /path/to/Qt/plugandpaint/plugins
//! [8]
//! [9]
qApp->addLibraryPath("/some/other/path");
//! [9]
//! [10]
ldd ./application
//! [10]
//! [11]
cd C:\path\to\Qt
configure -static <any other options you need>
//! [11]
//! [12]
nmake sub-src
//! [12]
//! [13]
cd examples\tools\plugandpaint
//! [13]
//! [14]
nmake clean
qmake -config release
nmake
//! [14]
//! [15]
cd examples\tools\plugandpaint
//! [15]
//! [16]
nmake clean
qmake -config release
nmake
//! [16]
//! [17]
cd ..\plugandpaintplugins
nmake clean
qmake -config release
nmake
//! [17]
//! [18]
plugins\pnp_basictools.dll
plugins\pnp_extrafilters.dll
//! [18]
//! [19]
qApp->addLibraryPath("C:\some\other\path");
//! [19]
//! [20]
embed_manifest_dll
embed_manifest_exe
//! [20]
//! [21]
CONFIG += embed_manifest_exe
//! [21]
//! [22]
<Visual Studio Install Path>\VC\redist\<Architecture>\Microsoft.VC80.CRT
//! [22]
//! [23]
CONFIG-=embed_manifest_dll
//! [23]
//! [24]
depends <application executable>
//! [24]
//! [25]
C:<path to Qt>\plugins
//! [25]
//! [26]
CONFIG-=app_bundle
//! [26]
//! [27]
cd /path/to/Qt
./configure -static <other parameters>
make sub-src
//! [27]
//! [28]
cd /path/to/Qt/examples/tools/plugandpaint
//! [28]
//! [29]
make clean
qmake -config release
make
//! [29]
//! [30]
otool -L plugandpaint.app/Contents/MacOs/plugandpaint
//! [30]
//! [31]
plugandpaint.app/Contents/MacOS/plugandpaint:
/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
(compatibility version 2.0.0, current version 128.0.0)
/System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
(compatibility version 1.0.0, current version 10.0.0)
/usr/lib/libz.1.dylib
(compatibility version 1.0.0, current version 1.2.3)
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
(compatibility version 1.0.0, current version 22.0.0)
/usr/lib/libstdc++.6.dylib
(compatibility version 7.0.0, current version 7.3.0)
/usr/lib/libgcc_s.1.dylib
(compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libmx.A.dylib
(compatibility version 1.0.0, current version 92.0.0)
/usr/lib/libSystem.B.dylib
(compatibility version 1.0.0, current version 88.0.0)
//! [31]
//! [32]
-lQtGui
//! [32]
//! [33]
/where/static/qt/lib/is/libQtGui.a
//! [33]
//! [34]
cd /path/to/Qt/examples/tools/plugandpaint
//! [34]
//! [35]
make clean
qmake -config release
make
//! [35]
//! [36]
cd ../plugandpaintplugins
make clean
qmake -config release
make
//! [36]
//! [37]
otool -L QtGui.framework/QtGui
//! [37]
//! [38]
QtGui.framework/QtGui:
/path/to/Qt/lib/QtGui.framework/Versions/4.0/QtGui
(compatibility version 4.0.0, current version 4.0.1)
/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
(compatibility version 2.0.0, current version 128.0.0)
/System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
(compatibility version 1.0.0, current version 10.0.0)
/path/to/Qt/QtCore.framework/Versions/4.0/QtCore
(compatibility version 4.0.0, current version 4.0.1)
/usr/lib/libz.1.dylib
(compatibility version 1.0.0, current version 1.2.3)
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
(compatibility version 1.0.0, current version 22.0.0)
/usr/lib/libstdc++.6.dylib
(compatibility version 7.0.0, current version 7.3.0)
/usr/lib/libgcc_s.1.dylib
(compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libmx.A.dylib
(compatibility version 1.0.0, current version 92.0.0)
/usr/lib/libSystem.B.dylib
(compatibility version 1.0.0, current version 88.0.0)
//! [38]
//! [39]
mkdir plugandpaint.app/Contents/Frameworks
cp -R /path/to/Qt/lib/QtCore.framework
plugandpaint.app/Contents/Frameworks
cp -R /path/to/Qt/lib/QtGui.framework
plugandpaint.app/Contents/Frameworks
//! [39]
//! [40]
install_name_tool -id @executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore
plugandpaint.app/Contents/Frameworks/QtCore.framework/Versions/4.0/QtCore
install_name_tool -id @executable_path/../Frameworks/QtGui.framework/Versions/4.0/QtGui
plugandpaint.app/Contents/Frameworks/QtGui.framework/Versions/4.0/QtGui
//! [40]
//! [41]
install_name_tool -change path/to/Qt/lib/QtCore.framework/Versions/4.0/QtCore
@executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore
plugandpaint.app/Contents/MacOs/plugandpaint
install_name_tool -change path/to/qt/lib/QtGui.framework/Versions/4.0/QtGui
@executable_path/../Frameworks/QtGui.framework/Versions/4.0/QtGui
plugandpaint.app/Contents/MacOs/plugandpaint
//! [41]
//! [42]
install_name_tool -change path/to/Qt/lib/QtCore.framework/Versions/4.0/QtCore
@executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore
plugandpaint.app/Contents/Frameworks/QtGui.framework/Versions/4.0/QtGui
//! [42]
//! [43]
mv plugins plugandpaint.app/Contents
//! [43]
//! [44]
libpnp_basictools.dylib:
libpnp_basictools.dylib
(compatibility version 0.0.0, current version 0.0.0)
/path/to/Qt/lib/QtGui.framework/Versions/4.0/QtGui
(compatibility version 4.0.0, current version 4.0.1)
/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
(compatibility version 2.0.0, current version 128.0.0)
/System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
(compatibility version 1.0.0, current version 10.0.0)
/path/to/Qt/lib/QtCore.framework/Versions/4.0/QtCore
(compatibility version 4.0.0, current version 4.0.1)
/usr/lib/libz.1.dylib
(compatibility version 1.0.0, current version 1.2.3)
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
(compatibility version 1.0.0, current version 22.0.0)
/usr/lib/libstdc++.6.dylib
(compatibility version 7.0.0, current version 7.3.0)
/usr/lib/libgcc_s.1.dylib
(compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libmx.A.dylib
(compatibility version 1.0.0, current version 92.0.0)
/usr/lib/libSystem.B.dylib
(compatibility version 1.0.0, current version 88.0.0)
//! [44]
//! [45]
install_name_tool -change /path/to/Qt/lib/QtCore.framework/Versions/4.0/QtCore
@executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore
plugandpaint.app/Contents/plugins/libpnp_basictools.dylib
install_name_tool -change /path/to/Qt/lib/QtGui.framework/Versions/4.0/QtGui
@executable_path/../Frameworks/QtGui.framework/Versions/4.0/QtGui
plugandpaint.app/Contents/plugins/libpnp_basictools.dylib
//! [45]
//! [46]
#elif defined(Q_OS_MAC)
if (pluginsDir.dirName() == "MacOS") {
pluginsDir.cdUp();
}
#endif
//! [46]
//! [47]
cp -R /path/to/Qt/plugins/imageformats
pluginandpaint.app/Contents/plugins
//! [47]
//! [48]
install_name_tool -change /path/to/Qt/lib/QtGui.framework/Versions/4.0/QtGui
@executable_path/../Frameworks/QtGui.framework/Versions/4.0/QtGui
plugandpaint.app/Contents/plugins/imageformats/libqjpeg.dylib
install_name_tool -change /path/to/Qt/lib/QtCore.framework/Versions/4.0/QtCore
@executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore
plugandpaint.app/Contents/plugins/imageformats/libqjpeg.dylib
//! [48]
//! [49]
QDir dir(QApplication::applicationDirPath());
dir.cdUp();
dir.cd("plugins");
QApplication::setLibraryPaths(QStringList(dir.absolutePath()));
//! [49]
//! [50]
otool -L MyApp.app/Contents/MacOS/MyApp
//! [50]
//! [51]
QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.3
//! [51]
//! [51a]
install_name_tool -change /System/Library/Frameworks/CoreVideo.framework/
Versions/A/CoreVideo /System/Library/Frameworks/QuartzCore.framework/
Versions/A/QuartzCore libphonon_qt7.dylib
//! [51a]
//! [51b]
./CONFIGURE - SDK MacOSX10.4u.sdk
//! [51b]
//! [52]
./configure (other arguments) -universal -sdk /Developer/SDKs/MacOSX10.4u.sdk
//! [52]
//! [53]
QMAKE_MAC_SDK=/Developer/SDKs/MacOSX10.4u.sdk
CONFIG+=x86 ppc
//! [53]
//! [54]
qApp->addLibraryPath("C:/customPath/plugins");
//! [54]

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//! [0]
CONFIG += uitools
//! [0]
//! [1]
#include <QtUiTools>
//! [1]
//! [2]
void on_<object name>_<signal name>(<signal parameters>);
//! [2]
//! [3]
CONFIG += release
//! [3]
//! [4]
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target
//! [4]
//! [5]
QT += script
//! [5]
//! [6]
widget.text = 'Hi - I was built ' + new Date().toString();
//! [6]
//! [7]
class MyExtension: public QObject,
public QdesignerContainerExtension
{
Q_OBJECT
Q_INTERFACE(QDesignerContainerExtension)
...
}
//! [7]
//! [8]
QObject *ANewExtensionFactory::createExtension(QObject *object,
const QString &iid, QObject *parent) const
{
if (iid != Q_TYPEID(QDesignerContainerExtension))
return 0;
if (MyCustomWidget *widget = qobject_cast<MyCustomWidget*>
(object))
return new MyContainerExtension(widget, parent);
return 0;
}
//! [8]
//! [9]
QObject *AGeneralExtensionFactory::createExtension(QObject *object,
const QString &iid, QObject *parent) const
{
MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object);
if (widget && (iid == Q_TYPEID(QDesignerTaskMenuExtension))) {
return new MyTaskMenuExtension(widget, parent);
} else if (widget && (iid == Q_TYPEID(QDesignerContainerExtension))) {
return new MyContainerExtension(widget, parent);
} else {
return 0;
}
}
//! [9]
//! [10]
void MyPlugin::initialize(QDesignerFormEditorInterface *formEditor)
{
if (initialized)
return;
QExtensionManager *manager = formEditor->extensionManager();
Q_ASSERT(manager != 0);
manager->registerExtensions(new MyExtensionFactory(manager),
Q_TYPEID(QDesignerTaskMenuExtension));
initialized = true;
}
//! [10]

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//! [0]
void MyQt3Widget::customStartDragFunction()
{
QDragObject *d = new QTextDrag( myHighlightedText(), this );
d->dragCopy();
// do NOT delete d.
}
//! [0]
//! [1]
void MyQt3Widget::dragEnterEvent(QDragEnterEvent* event)
{
event->accept(
QTextDrag::canDecode(event) ||
QImageDrag::canDecode(event)
);
}
//! [1]
//! [2]
void MyQt3Widget::dropEvent(QDropEvent* event)
{
QImage image;
QString text;
if ( QImageDrag::decode(event, image) ) {
insertImageAt(image, event->pos());
} else if ( QTextDrag::decode(event, text) ) {
insertTextAt(text, event->pos());
}
}
//! [2]

20
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//! [0]
./configure -help
//! [0]
//! [1]
configure -qt-kbd-s15000
//! [1]
//! [2]
export QWS_KEYBOARD=<driver>[:<driver specific options>]
//! [2]
//! [3]
export QWS_KEYBOARD="<driver>[:<driver specific options>]
<driver>[:<driver specific options>]
<driver>[:<driver specific options>]"
//! [3]

36
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//! [0]
export PATH=path/to/cross/compiler:$PATH
//! [0]
//! [1]
./configure -embedded arm -xplatform qws/linux-arm-g++ <other options>
//! [1]
//! [2]
cp path/to/QtEmbedded/mkspecs/qws/linux-mips-g++/...
path/to/QtEmbedded/mkspecs/qws/linux-myarchitecture-g++/...
//! [2]
//! [3]
cd path/to/QtEmbedded
./configure -embedded <architecture> -qt-kbd-<keyboarddriver>
-qt-mouse-<mousedriver> -qt-gfx-<screendriver>
//! [3]
//! [4]
cd path/to/QtEmbedded
./configure <other options>
-L /path/to/libjpeg/libraries -I /path/to/libjpeg/headers
//! [4]
//! [5]
cd path/to/myApplication
qmake -project
qmake
make
//! [5]

38
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//! [0]
export QWS_DISPLAY=<driver>[:<driver specific options>]...
[:<display num>]
//! [0]
//! [1]
export QWS_SIZE=<width>x<height>
//! [1]
//! [2]
export QWS_MOUSE_PROTO=<driver>[:<driver specific options>]
//! [2]
//! [3]
export QWS_MOUSE_PROTO="<driver>[:<driver specific options>]
<driver>[:<driver specific options>]
<driver>[:<driver specific options>]"
//! [3]
//! [4]
export QWS_MOUSE_PROTO="Vr41xx:press=500:/dev/misc/ts"
//! [4]
//! [5]
export QWS_KEYBOARD=<driver>[:<driver specific options>]
//! [5]
//! [6]
export QWS_KEYBOARD="<driver>[:<driver specific options>]
<driver>[:<driver specific options>]
<driver>[:<driver specific options>]"
//! [6]

18
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@ -0,0 +1,18 @@
//! [0]
configure.exe -D QT_NO_THREAD
//! [0]
//! [1]
./configure -no-feature-thread
//! [1]
//! [2]
configure.exe -qconfig myfile
//! [2]
//! [3]
./configure -qconfig myfile
//! [3]

3
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@ -0,0 +1,3 @@
//! [0]
name file renderer italic weight size flags
//! [0]

37
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@ -0,0 +1,37 @@
//! [0]
cd <anywhere>
gunzip qt-embedded-linux-commercial-src-4.5.2.tar.gz
tar xf qt-embedded-linux-commercial-src-4.5.2.tar
//! [0]
//! [1]
~/qt-embedded-linux-commercial-src-4.5.2
//! [1]
//! [2]
cd ~/qt-embedded-linux-commercial-src-4.5.2
./configure -embedded [architecture]
//! [2]
//! [3]
make
//! [3]
//! [4]
su -c "make install"
//! [4]
//! [5]
PATH=/usr/local/Trolltech/QtEmbedded-4.5.2/bin:$PATH
export PATH
//! [5]
//! [6]
setenv PATH /usr/local/Trolltech/QtEmbedded-4.5.2/bin:$PATH
//! [6]

36
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//! [0]
./configure -static
//! [0]
//! [1]
void *operator new[](size_t size)
{
return malloc(size);
}
void *operator new(size_t size)
{
return malloc(size);
}
void operator delete[](void *ptr)
{
free(ptr);
}
void operator delete[](void *ptr, size_t)
{
free(ptr);
}
void operator delete(void *ptr)
{
free(ptr);
}
void operator delete(void *ptr, size_t)
{
free(ptr);
}
//! [1]

68
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//! [0]
<qtopia-root-dir>/qtopiacore/qt/configure -embedded -help |grep -a1 mouse
//! [0]
//! [1]
./configure -extra-qtopiacore-config -qt-mouse-tslib
//! [1]
//! [2]
./configure -help
//! [2]
//! [3]
configure -qt-mouse-tslib
//! [3]
//! [4]
export QWS_MOUSE_PROTO=<driver>[:<driver specific options>]
//! [4]
//! [5]
export QWS_MOUSE_PROTO="<driver>[:<driver specific options>]
<driver>[:<driver specific options>]
<driver>[:<driver specific options>]"
//! [5]
//! [6]
export QWS_MOUSE_PROTO="Vr41xx:press=500:/dev/misc/ts"
//! [6]
//! [7]
./configure -L <path to tslib library> -I <path to tslib headers>
//! [7]
//! [8]
module_raw input
module linear
//! [8]
//! [9]
QWS_MOUSE_PROTO=IntelliMouse:/dev/input/mouse0
//! [9]
//! [10]
cat /dev/input/mouse0 | hexdump
//! [10]
//! [11]
QWS_MOUSE_PROTO=IntelliMouse:/dev/input/mouse0
//! [11]
//! [12]
chmod a+rw /dev/input/mouse0
//! [12]

70
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//! [0]
cd path/to/QtEmbedded
./configure -qvfb
make
//! [0]
//! [1]
cd path/to/Qt/tools/qvfb
make
./qvfb
//! [1]
//! [2]
cd path/to/Qt/tools/qvfb/ClamshellPhone.skin/
//! [2]
//! [3]
[SkinFile]
Up=ClamshellPhone1-5.png
Down=ClamshellPhone1-5-pressed.png
Closed=ClamshellPhone1-5-closed.png
Screen=72 84 176 208
Areas=22
"Power" 0x0100000a 205 563 249 586
"1" 0x0031 62 414 119 438
"2" 0x0032 130 414 189 438
"3" 0x0033 198 413 257 438
"4" 0x0034 54 444 117 470
"5" 0x0035 128 444 189 471
"6" 0x0036 202 444 264 471
"7" 0x0037 47 477 113 507
"8" 0x0038 126 477 190 507
"9" 0x0039 205 478 270 509
"*" 0x002a 39 515 110 552
"0" 0x0030 122 515 195 553
"#" 0x0023 207 516 280 553
"Context1" 0x01100000 137 360 108 383 123 410 90 409 60 387 63 378
100 362
"Back" 0x01000061 184 361 206 376 213 387 197 410 226 410 256 392
258 381 244 369
"Backspace" 0x01000003 68 563 113 587
"Select" 0x01010000 160 391 172 390 181 386 184 381 180 377 173
373 165 372 155 372 145 375 138 378 136
382 138 387 147 390
"Left" 0x1000012 141 390 136 385 136 381 143 375 132 371 120
380 121 393 129 401
"Down" 0x1000015 143 389 130 402 162 412 191 404 175 390
"Right" 0x1000014 186 370 176 375 184 382 182 387 175 390 190 404
201 396 202 375
"Up" 0x1000013 133 370 143 374 176 374 185 370 169 362 149 362
"Flip" 0x01100006 98 325 225 353
//! [3]
//! [4]
cd path/to/QtEmbedded/examples/widgets/analogclock
make
./analogclock -qws
//! [4]
//! [5]
cd path/to/QtEmbedded/examples/widgets/analogclock
make
./analogclock -qws -display QVFb:0
//! [5]

61
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//! [0]
cd path/to/QtEmbedded/demos/textedit
./textedit -qws
//! [0]
//! [1]
./myfirstserverapplication -qws -display "transformed:rot90:1"
./mysecondserverapplication -qws -display "QVFb:2"
//! [1]
//! [2]
./myclientapplication -display "QVFb:2"
//! [2]
//! [3]
./myserverapplication -qws -display "Multi: QVFb:0
QVFb:1:offset=0,0 VNC:offset=640,0 :2"
//! [3]
//! [4]
./myapplication -fn helvetica
//! [4]
//! [5]
./myapplication -bg blue
//! [5]
//! [6]
./myapplication -btn green
//! [6]
//! [7]
./myapplication -fg 'dark blue'
//! [7]
//! [8]
./myapplication -name texteditapplication
//! [8]
//! [9]
./myapplication -title 'Text Edit'
//! [9]
//! [10]
./myapplication -geometry 300x200+50+50
//! [10]
//! [11]
./myapplication -decoration windows
//! [11]

25
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//! [0]
cd path/to/QtEmbedded
./configure -qt-gfx-vnc
make
//! [0]
//! [1]
cd path/to/QtEmbedded/examples/widgets/analogclock
./analogclock -qws -display VNC:0
//! [1]
//! [2]
vncviewer localhost:0
//! [2]
//! [Starting server]
analogclock -qws -display VNC:0
//! [Starting server]
//! [Starting clients]
calculator -display VNC:0
scribble -display VNC:0
imageviewer -display VNC:0
//! [Starting clients]

39
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//! [0]
Private Application As comappLib.Application
Private MyApp As Boolean
Private Sub UpdateList()
DocumentList.Clear
DocumentsCount.Caption = Application.documents.Count
For Index = 0 To Application.documents.Count - 1
DocumentList.AddItem (Application.documents.Item(Index).Title)
Next
End Sub
Private Sub Form_Load()
On Error GoTo CreateNew
Set Application = GetObject(, "comapp.Application")
MyApp = False
GoTo Initialized
CreateNew:
On Error GoTo InitializeFailed
Set Application = New Application
Application.Visible = True
MyApp = True
Initialized:
Caption = Application.id
UpdateList
InitializeFailed:
End Sub
Private Sub Form_Unload(Cancel As Integer)
If MyApp Then
Application.quit
End If
End Sub
Private Sub NewDocument_Click()
Application.documents.addDocument
UpdateList
End Sub
//! [0]

4
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//! [0]
' VB is case insensitive, but our C++ controls are not.
' Me.resetButton.enabled = True
//! [0]

6
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//! [0]
<object ID="QMenus" CLASSID="CLSID:4dc3f340-a6f7-44e4-a79b-3e9217695fbd"
CODEBASE="http://qtsoftware.com/demos/menusax.cab">
[Object not available! Did you forget to build and register the server?]
</object>
//! [0]

8
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//! [0]
myApplication -qws -display ahigl
//! [0]
//! [1]
myApplication -qws -display ahigl
//! [1]

5
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//! [0]
application -style=windows
application -style=motif
application -style=cde
//! [0]

19
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//! [0]
qApp->translate("ArrowPad", x)
//! [0]
//! [1]
lrelease arrowpad.pro
//! [1]
//! [2]
export LANG=fr
setenv LANG fr
//! [2]
//! [3]
set LANG=fr
//! [3]

4
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//! [0]
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target
//! [0]

4
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//! [0]
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target
//! [0]

3
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//! [0]
foreach(variable, container)
//! [0]

8
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//! [0]
QVariant a = model->index(0, 0, QModelIndex()).data();
//! [0]
//! [1]
QVariant b = model->index(1, 0, QModelIndex()).data();
//! [1]

31
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//! [0]
lupdate -verbose hellotr.pro
//! [0]
//! [1]
<!DOCTYPE TS><TS>
<context>
<name>QPushButton</name>
<message>
<source>Hello world!</source>
<translation type="unfinished"></translation>
</message>
</context>
</TS>
//! [1]
//! [2]
linguist hellotr_la.ts
//! [2]
//! [3]
<translation type='unfinished'></translation>
//! [3]
//! [4]
<translation>Orbis, te saluto!</translation>
//! [4]

14
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//! [0]
if (!condition)
qFatal("ASSERT: "condition" in file ...");
//! [0]
//! [1]
qmake "CONFIG += debug" icons.pro
//! [1]
//! [2]
qmake "CONFIG += release" icons.pro
//! [2]

24
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//! [0]
imageLabel->resize(imageLabel->pixmap()->size());
//! [0]
//! [1]
if (!imageLabel->pixmap())
qFatal("ASSERT: "imageLabel->pixmap()" in file ...");
//! [1]
//! [2]
qmake "CONFIG += debug" foo.pro
//! [2]
//! [3]
qmake "CONFIG += release" foo.pro
//! [3]
//! [4]
scrollBar->setValue(int(factor * scrollBar->value()));
//! [4]

35
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//! [0]
var ba = new ByteArray(); // constructs an empty ByteArray
var ba2 = new ByteArray(10); // constructs a ByteArray of length 10 (all bytes initialized to 0)
//! [0]
//! [1]
for (var i = 0; i < ba.length; ++i)
ba[i] = 123;
//! [1]
//! [2]
ba[0] = 257;
print(ba[0]); // 1
//! [2]
//! [3]
var ba3 = new ByteArray();
print(ba3.length); // 0
ba[0] = 64;
print(ba3.length); // 1
//! [3]
//! [4]
ba["foo"] = "Hello";
//! [4]
//! [5]
var ba64 = ba.toBase64();
print(ba64.toLatin1String());
//! [5]

20
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//! [0]
// file is an open QFile object.
QDomDocument document;
if (document.setContent(&file)) {
QDomElement documentElement = document.documentElement();
QString text;
QDomNode node = documentElement.firstChild();
while (!node.isNull()) {
if (node.isText())
text += node.nodeValue();
else if (node.hasChildNodes()) {
// Examine the node's children and read any text found.
...
}
node = node.nextSibling();
}
}
//! [0]

12
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//! [0]
Getting Started How to familiarize yourself with Qt Designer
Launching Designer Running the Qt Designer application
The User Interface How to interact with Qt Designer
//! [0]
//! [1]
Connection Editing Mode Connecting widgets together with signals and slots
Connecting Objects Making connections in Qt Designer
Editing Connections Changing existing connections
//! [1]

3
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@ -0,0 +1,3 @@
//! [0]
myApplication -qws -display svgalib
//! [0]

4
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@ -0,0 +1,4 @@
//! [0]
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target
//! [0]

6
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//! [0]
CONFIG += uitools
HEADERS = textfinder.h
RESOURCES = textfinder.qrc
SOURCES = textfinder.cpp main.cpp
//! [0]

35
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//! [0]
twoSidedEnabledRadio = new QRadioButton(tr("Enabled", "two-sided"));
twoSidedDisabledRadio = new QRadioButton(tr("Disabled", "two-sided"));
//! [0]
//! [1]
colorsEnabledRadio = new QRadioButton(tr("Enabled", "colors"), colors);
colorsDisabledRadio = new QRadioButton(tr("Disabled", "colors"), colors);
//! [1]
//! [2]
/*
TRANSLATOR MainWindow
In this application the whole application is a MainWindow.
Choose Help|About from the menu bar to see some text
belonging to MainWindow.
...
//! [2]
//! [3]
/*
TRANSLATOR ZClientErrorDialog
Choose Client|Edit to reach the Client Edit dialog, then choose
Client Specification from the drop down list at the top and pick
client Bartel Leendert van der Waerden. Now check the Profile
checkbox and then click the Start Processing button. You should
now see a pop up window with the text "Error: Name too long!".
This window is a ZClientErrorDialog.
//! [3]

10
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//! [0]
qmake -project
qmake
//! [0]
//! [1]
qmake -project
qmake
//! [1]

4
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@ -0,0 +1,4 @@
//! [0]
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target
//! [0]

17
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//! [0]
#ifdef Q_WS_X11
void qt_x11_wait_for_window_manager(QWidget *widget);
#endif
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
...
window.show();
#ifdef Q_WS_X11
qt_x11_wait_for_window_manager(&window);
#endif
...
return app.exec();
}
//! [0]

679
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//! [GPL v3]
You may use, distribute and copy the Qt GUI Toolkit under the terms of
GNU General Public License version 3, which is displayed below.
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
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10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
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work thus licensed is called the contributor's "contributor version".
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available, or (2) arrange to deprive yourself of the benefit of the
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consistent with the requirements of this License, to extend the patent
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actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
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arrangement, you convey, or propagate by procuring conveyance of, a
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you grant is automatically extended to all recipients of the covered
work and works based on it.
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the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
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work if you are a party to an arrangement with a third party that is
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parties who would receive the covered work from you, a discriminatory
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conveyed by you (or copies made from those copies), or (b) primarily
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or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
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not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
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License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
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Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
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by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
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to choose that version for the Program.
Later license versions may give you additional or different
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author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
//! [GPL v3]

77
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@ -0,0 +1,77 @@
//! [0]
QGraphicsScene scene;
QGraphicsRectItem *rect = scene.addRect(QRectF(0, 0, 100, 100));
QGraphicsItem *item = scene.itemAt(50, 50);
// item == rect
//! [0]
//! [1]
QGraphicsScene scene;
myPopulateScene(&scene);
QGraphicsView view(&scene);
view.show();
//! [1]
//! [2]
class View : public QGraphicsView
{
Q_OBJECT
...
public slots:
void zoomIn() { scale(1.2, 1.2); }
void zoomOut() { scale(1 / 1.2, 1 / 1.2); }
void rotateLeft() { rotate(-10); }
void rotateRight() { rotate(10); }
...
};
//! [2]
//! [3]
QGraphicsScene scene;
scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green));
QPrinter printer;
if (QPrintDialog(&printer).exec() == QDialog::Accepted) {
QPainter painter(&printer);
painter.setRenderHint(QPainter::Antialiasing);
scene.render(&painter);
}
//! [3]
//! [4]
QGraphicsScene scene;
scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green));
QPixmap pixmap;
QPainter painter(&pixmap);
painter.setRenderHint(QPainter::Antialiasing);
scene.render(&painter);
painter.end();
pixmap.save("scene.png");
//! [4]
//! [5]
void CustomItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
QMimeData *data = new QMimeData;
data->setColor(Qt::green);
QDrag *drag = new QDrag(event->widget());
drag->setMimeData(data);
drag->start();
}
//! [5]
//! [6]
QGraphicsView view(&scene);
view.setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
//! [6]

26
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//! [0]
void QPen::setStyle(Qt::PenStyle style)
{
detach(); // detach from common data
d->style = style; // set the style member
}
void QPen::detach()
{
if (d->ref != 1) {
... // perform a deep copy
}
}
//! [0]
//! [1]
QPixmap p1, p2;
p1.load("image.bmp");
p2 = p1; // p1 and p2 share data
QPainter paint;
paint.begin(&p2); // cuts p2 loose from p1
paint.drawText(0,50, "Hi");
paint.end();
//! [1]

155
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//! [0]
LoginWidget::LoginWidget()
{
QLabel *label = new QLabel(tr("Password:"));
...
}
//! [0]
//! [1]
void some_global_function(LoginWidget *logwid)
{
QLabel *label = new QLabel(
LoginWidget::tr("Password:"), logwid);
}
void same_global_function(LoginWidget *logwid)
{
QLabel *label = new QLabel(
qApp->translate("LoginWidget", "Password:"), logwid);
}
//! [1]
//! [2]
QString FriendlyConversation::greeting(int type)
{
static const char *greeting_strings[] = {
QT_TR_NOOP("Hello"),
QT_TR_NOOP("Goodbye")
};
return tr(greeting_strings[type]);
}
//! [2]
//! [3]
static const char *greeting_strings[] = {
QT_TRANSLATE_NOOP("FriendlyConversation", "Hello"),
QT_TRANSLATE_NOOP("FriendlyConversation", "Goodbye")
};
QString FriendlyConversation::greeting(int type)
{
return tr(greeting_strings[type]);
}
QString global_greeting(int type)
{
return qApp->translate("FriendlyConversation",
greeting_strings[type]);
}
//! [3]
//! [4]
void FileCopier::showProgress(int done, int total,
const QString &currentFile)
{
label.setText(tr("%1 of %2 files copied.\nCopying: %3")
.arg(done)
.arg(total)
.arg(currentFile));
}
//! [4]
//! [5]
QString s1 = "%1 of %2 files copied. Copying: %3";
QString s2 = "Kopierer nu %3. Av totalt %2 filer er %1 kopiert.";
qDebug() << s1.arg(5).arg(10).arg("somefile.txt");
qDebug() << s2.arg(5).arg(10).arg("somefile.txt");
//! [5]
//! [6]
5 of 10 files copied. Copying: somefile.txt
Kopierer nu somefile.txt. Av totalt 10 filer er 5 kopiert.
//! [6]
//! [7]
HEADERS = funnydialog.h \
wackywidget.h
SOURCES = funnydialog.cpp \
main.cpp \
wackywidget.cpp
FORMS = fancybox.ui
TRANSLATIONS = superapp_dk.ts \
superapp_fi.ts \
superapp_no.ts \
superapp_se.ts
//! [7]
//! [8]
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QTranslator qtTranslator;
qtTranslator.load("qt_" + QLocale::system().name(),
QLibraryInfo::location(QLibraryInfo::TranslationsPath));
app.installTranslator(&qtTranslator);
QTranslator myappTranslator;
myappTranslator.load("myapp_" + QLocale::system().name());
app.installTranslator(&myappTranslator);
...
return app.exec();
}
//! [8]
//! [9]
QString string = ...; // some Unicode text
QTextCodec *codec = QTextCodec::codecForName("ISO 8859-5");
QByteArray encodedString = codec->fromUnicode(string);
//! [9]
//! [10]
QByteArray encodedString = ...; // some ISO 8859-5 encoded text
QTextCodec *codec = QTextCodec::codecForName("ISO 8859-5");
QString string = codec->toUnicode(encodedString);
//! [10]
//! [11]
void Clock::setTime(const QTime &time)
{
if (tr("AMPM") == "AMPM") {
// 12-hour clock
} else {
// 24-hour clock
}
}
//! [11]
//! [12]
void QWidget::changeEvent(QEvent *event)
{
if (e->type() == QEvent::LanguageChange) {
titleLabel->setText(tr("Document Title"));
...
okPushButton->setText(tr("&OK"));
} else
QWidget::changeEvent(event);
}
//! [12]

127
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//! [0]
cd /tmp
gunzip qt-x11-opensource-desktop-4.5.2.tar.gz # uncompress the archive
tar xvf qt-x11-opensource-desktop-4.5.2.tar # unpack it
//! [0]
//! [1]
cd /tmp/qt-x11-opensource-desktop-4.5.2
./configure
//! [1]
//! [2]
make
//! [2]
//! [3]
make install
//! [3]
//! [4]
PATH - to locate qmake, moc and other Qt tools
//! [4]
//! [5]
PATH=/usr/local/Trolltech/Qt-4.5.2/bin:$PATH
export PATH
//! [5]
//! [6]
setenv PATH /usr/local/Trolltech/Qt-4.5.2/bin:$PATH
//! [6]
//! [7]
PATH - to locate qmake, moc and other Qt tools
//! [7]
//! [8]
C:
cd /D C:\Qt\4.5.2
configure
//! [8]
//! [9]
configure -platform win32-msvc
//! [9]
//! [10]
nmake
//! [10]
//! [11]
cd /tmp
gunzip qt-mac-opensource-desktop-4.5.2.tar.gz # uncompress the archive
tar xvf qt-mac-opensource-desktop-4.5.2.tar # unpack it
//! [11]
//! [12]
cd /tmp/qt-mac-opensource-desktop-4.5.2
./configure
//! [12]
//! [13]
make
//! [13]
//! [14]
sudo make -j1 install
//! [14]
//! [15]
PATH - to locate qmake, moc and other Qt tools
//! [15]
//! [16]
PATH=/usr/local/Trolltech/Qt-4.5.2/bin:$PATH
export PATH
//! [16]
//! [17]
setenv PATH /usr/local/Trolltech/Qt-4.5.2/bin:$PATH
//! [17]
//! [18]
PATH - to locate qmake, moc and other Qt tools
//! [18]
//! [19]
C:
cd \Qt\4.5.2
configure -platform win32-msvc2005 -xplatform wincewm50pocket-msvc2005
//! [19]
//! [20]
set INCLUDE=C:\Program Files\Microsoft Visual Studio 8\VC\ce\include;C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Include\Armv4i
set LIB=C:\Program Files\Microsoft Visual Studio 8\VC\ce\lib\armv4i;C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Lib\ARMV4I
set PATH=C:\Program Files\Microsoft Visual Studio 8\VC\ce\bin\x86_arm;%PATH%
//! [20]
//! [21]
setcepaths wincewm50pocket-msvc2005
//! [21]
//! [22]
nmake
//! [22]

3
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//! [0]
org.freedesktop.DBus
//! [0]

126
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//! [0]
#ifndef CARD_H
#define CARD_H
#include <QtGui>
#include <QList>
class CardLayout : public QLayout
{
public:
CardLayout(QWidget *parent, int dist): QLayout(parent, 0, dist) {}
CardLayout(QLayout *parent, int dist): QLayout(parent, dist) {}
CardLayout(int dist): QLayout(dist) {}
~CardLayout();
void addItem(QLayoutItem *item);
QSize sizeHint() const;
QSize minimumSize() const;
QLayoutItem *count() const;
QLayoutItem *itemAt(int) const;
QLayoutItem *takeAt(int);
void setGeometry(const QRect &rect);
private:
QList<QLayoutItem*> list;
};
#endif
//! [0]
//! [1]
//#include "card.h"
//! [1]
//! [2]
QLayoutItem *CardLayout::count() const
{
// QList::size() returns the number of QLayoutItems in the list
return list.size();
}
//! [2]
//! [3]
QLayoutItem *CardLayout::itemAt(int idx) const
{
// QList::value() performs index checking, and returns 0 if we are
// outside the valid range
return list.value(idx);
}
QLayoutItem *CardLayout::takeAt(int idx)
{
// QList::take does not do index checking
return idx >= 0 && idx < list.size() ? list.takeAt(idx) : 0;
}
//! [3]
//! [4]
void CardLayout::addItem(QLayoutItem *item)
{
list.append(item);
}
//! [4]
//! [5]
CardLayout::~CardLayout()
{
QLayoutItem *item;
while ((item = takeAt(0)))
delete item;
}
//! [5]
//! [6]
void CardLayout::setGeometry(const QRect &r)
{
QLayout::setGeometry(r);
if (list.size() == 0)
return;
int w = r.width() - (list.count() - 1) * spacing();
int h = r.height() - (list.count() - 1) * spacing();
int i = 0;
while (i < list.size()) {
QLayoutItem *o = list.at(i);
QRect geom(r.x() + i * spacing(), r.y() + i * spacing(), w, h);
o->setGeometry(geom);
++i;
}
}
//! [6]
//! [7]
QSize CardLayout::sizeHint() const
{
QSize s(0,0);
int n = list.count();
if (n > 0)
s = QSize(100,70); //start with a nice default size
int i = 0;
while (i < n) {
QLayoutItem *o = list.at(i);
s = s.expandedTo(o->sizeHint());
++i;
}
return s + n*QSize(spacing(), spacing());
}
QSize CardLayout::minimumSize() const
{
QSize s(0,0);
int n = list.count();
int i = 0;
while (i < n) {
QLayoutItem *o = list.at(i);
s = s.expandedTo(o->minimumSize());
++i;
}
return s + n*QSize(spacing(), spacing());
}
//! [7]

507
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//! [LGPL v2.1]
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!
//! [LGPL v2.1]

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//! [1]
[utopiafonts] 1999 free font
----------------------------------------------------
this font is provided free for personal or commercial use,
it can be redistributed however it may not be sold.
----------------------------------------------------
(C) 1999 utopiafonts. dale_thorpe@bssc.edu.au
//! [1]
//! [2]
Bitstream Vera Fonts Copyright
------------------------------
Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
a trademark of Bitstream, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of the fonts accompanying this license ("Fonts") and associated
documentation files (the "Font Software"), to reproduce and distribute the
Font Software, including without limitation the rights to use, copy, merge,
publish, distribute, and/or sell copies of the Font Software, and to permit
persons to whom the Font Software is furnished to do so, subject to the
following conditions:
The above copyright and trademark notices and this permission notice shall
be included in all copies of one or more of the Font Software typefaces.
The Font Software may be modified, altered, or added to, and in particular
the designs of glyphs or characters in the Fonts may be modified and
additional glyphs or characters may be added to the Fonts, only if the fonts
are renamed to names not containing either the words "Bitstream" or the word
"Vera".
This License becomes null and void to the extent applicable to Fonts or Font
Software that has been modified and is distributed under the "Bitstream
Vera" names.
The Font Software may be sold as part of a larger software package but no
copy of one or more of the Font Software typefaces may be sold by itself.
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
FOUNDATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING
ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
FONT SOFTWARE.
Except as contained in this notice, the names of Gnome, the Gnome
Foundation, and Bitstream Inc., shall not be used in advertising or
otherwise to promote the sale, use or other dealings in this Font Software
without prior written authorization from the Gnome Foundation or Bitstream
Inc., respectively. For further information, contact: fonts at gnome dot
org.
Arev Fonts Copyright
------------------------------
Copyright (c) 2006 by Tavmjong Bah. All Rights Reserved.
Permission is hereby granted, free of charge, to any person obtaining
a copy of the fonts accompanying this license ("Fonts") and
associated documentation files (the "Font Software"), to reproduce
and distribute the modifications to the Bitstream Vera Font Software,
including without limitation the rights to use, copy, merge, publish,
distribute, and/or sell copies of the Font Software, and to permit
persons to whom the Font Software is furnished to do so, subject to
the following conditions:
The above copyright and trademark notices and this permission notice
shall be included in all copies of one or more of the Font Software
typefaces.
The Font Software may be modified, altered, or added to, and in
particular the designs of glyphs or characters in the Fonts may be
modified and additional glyphs or characters may be added to the
Fonts, only if the fonts are renamed to names not containing either
the words "Tavmjong Bah" or the word "Arev".
This License becomes null and void to the extent applicable to Fonts
or Font Software that has been modified and is distributed under the
"Tavmjong Bah Arev" names.
The Font Software may be sold as part of a larger software package but
no copy of one or more of the Font Software typefaces may be sold by
itself.
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL
TAVMJONG BAH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
OTHER DEALINGS IN THE FONT SOFTWARE.
Except as contained in this notice, the name of Tavmjong Bah shall not
be used in advertising or otherwise to promote the sale, use or other
dealings in this Font Software without prior written authorization
from Tavmjong Bah. For further information, contact: tavmjong @ free
. fr.
//! [2]

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//! [0]
HEADERS = main-dlg.h \
options-dlg.h
SOURCES = main-dlg.cpp \
options-dlg.cpp \
main.cpp
FORMS = search-dlg.ui
TRANSLATIONS = superapp_dk.ts \
superapp_fi.ts \
superapp_no.ts \
superapp_se.ts
//! [0]
//! [1]
CODECFORTR = ISO-8859-5
//! [1]
//! [2]
CODECFORSRC = UTF-8
//! [2]
//! [3]
label->setText(tr("F\374r \310lise"));
//! [3]
//! [4]
Usage:
lupdate [options] [project-file]
lupdate [options] [source-file|path]... -ts ts-files
Options:
-help Display this information and exit.
-noobsolete
Drop all obsolete strings.
-extensions <ext>[,<ext>]...
Process files with the given extensions only.
The extension list must be separated with commas, not with whitespace.
Default: 'ui,c,c++,cc,cpp,cxx,ch,h,h++,hh,hpp,hxx'.
-pluralonly
Only include plural form messages.
-silent
Don't explain what is being done.
-version
Display the version of lupdate and exit.
//! [4]
//! [5]
Usage:
lrelease [options] project-file
lrelease [options] ts-files [-qm qm-file]
Options:
-help Display this information and exit
-compress
Compress the .qm files
-nounfinished
Do not include unfinished translations
-removeidentical
If the translated text is the same as
the source text, do not include the message
-silent
Don't explain what is being done
-version
Display the version of lrelease and exit
//! [5]
void wrapInFunction()
{
//! [6]
button = new QPushButton("&Quit", this);
//! [6]
//! [7]
button = new QPushButton(tr("&Quit"), this);
//! [7]
//! [8]
QPushButton::tr("&Quit")
//! [8]
//! [9]
QObject::tr("&Quit")
//! [9]
//! [10]
rbc = new QRadioButton(tr("Enabled", "Color frame"), this);
//! [10]
//! [11]
rbh = new QRadioButton(tr("Enabled", "Hue frame"), this);
//! [11]
}
//! [12]
/*
TRANSLATOR FindDialog
Choose Edit|Find from the menu bar or press Ctrl+F to pop up the
Find dialog.
...
*/
//! [12]
//! [13]
/*
TRANSLATOR MyNamespace::MyClass
Necessary for lupdate.
...
*/
//! [13]
//! [14]
void some_global_function(LoginWidget *logwid)
{
QLabel *label = new QLabel(
LoginWidget::tr("Password:"), logwid);
}
void same_global_function(LoginWidget *logwid)
{
QLabel *label = new QLabel(
qApp->translate("LoginWidget", "Password:"),
logwid);
}
//! [14]
//! [15]
QString FriendlyConversation::greeting(int greet_type)
{
static const char* greeting_strings[] = {
QT_TR_NOOP("Hello"),
QT_TR_NOOP("Goodbye")
};
return tr(greeting_strings[greet_type]);
}
//! [15]
//! [16]
static const char* greeting_strings[] = {
QT_TRANSLATE_NOOP("FriendlyConversation", "Hello"),
QT_TRANSLATE_NOOP("FriendlyConversation", "Goodbye")
};
QString FriendlyConversation::greeting(int greet_type)
{
return tr(greeting_strings[greet_type]);
}
QString global_greeting(int greet_type)
{
return qApp->translate("FriendlyConversation",
greeting_strings[greet_type]);
}
//! [16]
void wrapInFunction()
{
//! [17]
QString tr(const char *text, const char *comment, int n);
//! [17]
//! [18]
tr("%n item(s) replaced", "", count);
//! [18]
}

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//! [0]
moc_%.cpp: %.h
moc $(DEFINES) $(INCPATH) $< -o $@
//! [0]
//! [1]
moc_foo.cpp: foo.h
moc $(DEFINES) $(INCPATH) $< -o $@
//! [1]
//! [2]
foo.o: foo.moc
foo.moc: foo.cpp
moc $(DEFINES) $(INCPATH) -i $< -o $@
//! [2]
//! [3]
#include "foo.moc"
//! [3]
//! [4]
#ifndef Q_MOC_RUN
...
#endif
//! [4]
//! [5]
class SomeTemplate<int> : public QFrame
{
Q_OBJECT
...
signals:
void mySignal(int);
};
//! [5]
//! [6]
// correct
class SomeClass : public QObject, public OtherClass
{
...
};
//! [6]
//! [7]
class SomeClass : public QObject
{
Q_OBJECT
public slots:
void apply(void (*apply)(List *, void *), char *); // WRONG
};
//! [7]
//! [8]
typedef void (*ApplyFunction)(List *, void *);
class SomeClass : public QObject
{
Q_OBJECT
public slots:
void apply(ApplyFunction, char *);
};
//! [8]
//! [9]
class MyClass : public QObject
{
Q_OBJECT
enum Error {
ConnectionRefused,
RemoteHostClosed,
UnknownError
};
signals:
void stateChanged(MyClass::Error error);
};
//! [9]
//! [10]
#ifdef ultrix
#define SIGNEDNESS(a) unsigned a
#else
#define SIGNEDNESS(a) a
#endif
class Whatever : public QObject
{
Q_OBJECT
signals:
void someSignal(SIGNEDNESS(int));
};
//! [10]
//! [11]
class A
{
public:
class B
{
Q_OBJECT
public slots: // WRONG
void b();
};
};
//! [11]

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//! [0]
QAbstractItemModel *model = index.model();
//! [0]
//! [1]
QModelIndex index = model->index(row, column, ...);
//! [1]
//! [2]
QModelIndex indexA = model->index(0, 0, QModelIndex());
QModelIndex indexB = model->index(1, 1, QModelIndex());
QModelIndex indexC = model->index(2, 1, QModelIndex());
//! [2]
//! [3]
QModelIndex index = model->index(row, column, parent);
//! [3]
//! [4]
QModelIndex indexA = model->index(0, 0, QModelIndex());
QModelIndex indexC = model->index(2, 1, QModelIndex());
//! [4]
//! [5]
QModelIndex indexB = model->index(1, 0, indexA);
//! [5]
//! [6]
QVariant value = model->data(index, role);
//! [6]

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//! [0]
QT -= gui
//! [0]

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//![0]
int main()
{
QWidget window;
QPushButton quit("Quit", &window);
...
}
//![0]
//![1]
int main()
{
QPushButton quit("Quit");
QWidget window;
quit.setParent(&window);
...
}
//![1]

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//! [0]
PushStream::PushStream(QObject *parent)
: AbstractMediaStream(parent), m_timer(new QTimer(this))
{
setStreamSize(getMediaStreamSize());
connect(m_timer, SIGNAL(timeout()), SLOT(moreData()));
m_timer->setInterval(0);
}
void PushStream::moreData()
{
const QByteArray data = getMediaData();
if (data.isEmpty()) {
endOfData();
} else {
writeData(data);
}
}
void PushStream::needData()
{
m_timer->start();
moreData();
}
void PushStream::enoughData()
{
m_timer->stop();
}
//! [0]
//! [1]
PullStream::PullStream(QObject *parent)
: AbstractMediaStream(parent)
{
setStreamSize(getMediaStreamSize());
}
void PullStream::needData()
{
const QByteArray data = getMediaData();
if (data.isEmpty()) {
endOfData();
} else {
writeData(data);
}
}
//! [1]
//! [2]
seekStream(0);
//! [2]
//! [3]
MediaObject m;
QString fileName("/home/foo/bar.ogg");
QUrl url("http://www.example.com/stream.mp3");
QBuffer *someBuffer;
m.setCurrentSource(fileName);
m.setCurrentSource(url);
m.setCurrentSource(someBuffer);
m.setCurrentSource(Phonon::Cd);
//! [3]
//! [4]
VideoPlayer *player = new VideoPlayer(Phonon::VideoCategory, parentWidget);
connect(player, SIGNAL(finished()), player, SLOT(deleteLater()));
player->play(url);
//! [4]
//! [5]
audioPlayer->load(url);
audioPlayer->play();
//! [5]
//! [6]
media = new MediaObject(this);
connect(media, SIGNAL(finished()), SLOT(slotFinished());
media->setCurrentSource("/home/username/music/filename.ogg");
...
media->play();
//! [6]
//! [7]
media->setCurrentSource(":/sounds/startsound.ogg");
media->enqueue("/home/username/music/song.mp3");
media->enqueue(":/sounds/endsound.ogg");
//! [7]
//! [8]
media->setCurrentSource(":/sounds/startsound.ogg");
connect(media, SIGNAL(aboutToFinish()), SLOT(enqueueNextSource()));
}
void enqueueNextSource()
{
media->enqueue("/home/username/music/song.mp3");
}
//! [8]
//! [9]
int x = 200;
media->setTickInterval(x);
Q_ASSERT(x == producer->tickInterval());
//! [9]
//! [10]
int x = 200;
media->setTickInterval(x);
Q_ASSERT(x >= producer->tickInterval() &&
x <= 2producer->tickInterval());
//! [10]
//! [11]
connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool));
media->setCurrentSource("somevideo.avi");
media->hasVideo(); // returns false;
}
void hasVideoChanged(bool b)
{
// b == true
media->hasVideo(); // returns true;
}
//! [11]
//! [12]
connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool));
media->setCurrentSource("somevideo.avi");
media->hasVideo(); // returns false;
}
void hasVideoChanged(bool b)
{
// b == true
media->hasVideo(); // returns true;
}
//! [12]
//! [13]
setMetaArtist(media->metaData("ARTIST"));
setMetaAlbum(media->metaData("ALBUM"));
setMetaTitle(media->metaData("TITLE"));
setMetaDate(media->metaData("DATE"));
setMetaGenre(media->metaData("GENRE"));
setMetaTrack(media->metaData("TRACKNUMBER"));
setMetaComment(media->metaData("DESCRIPTION"));
//! [13]
//! [14]
QUrl url("http://www.example.com/music.ogg");
media->setCurrentSource(url);
//! [14]
//! [15]
progressBar->setRange(0, 100); // this is the default
connect(media, SIGNAL(bufferStatus(int)), progressBar, SLOT(setValue(int)));
//! [15]
//! [16]
QObject::connect(BackendCapabilities::notifier(), SIGNAL(capabilitiesChanged()), ...
//! [16]
//! [17]
QComboBox *cb = new QComboBox(parentWidget);
ObjectDescriptionModel *model = new ObjectDescriptionModel(cb);
model->setModelData(BackendCapabilities::availableAudioOutputDevices());
cb->setModel(model);
cb->setCurrentIndex(0); // select first entry
//! [17]
//! [18]
int cbIndex = cb->currentIndex();
AudioOutputDevice selectedDevice = model->modelData(cbIndex);
//! [18]
//! [19]
Path path = Phonon::createPath(...);
Effect *effect = new Effect(this);
path.insertEffect(effect);
//! [19]
//! [20]
MediaObject *media = new MediaObject;
AudioOutput *output = new AudioOutput(Phonon::MusicCategory);
Path path = Phonon::createPath(media, output);
Q_ASSERT(path.isValid()); // for this simple case the path should always be
//valid - there are unit tests to ensure it
// insert an effect
QList<EffectDescription> effectList = BackendCapabilities::availableAudioEffects();
if (!effectList.isEmpty()) {
Effect *effect = path.insertEffect(effectList.first());
}
//! [20]
//! [21]
MediaObject *media = new MediaObject(parent);
VideoWidget *vwidget = new VideoWidget(parent);
Phonon::createPath(media, vwidget);
//! [21]

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//! [0]
QT += phonon
//! [0]
//! [1]
QT += phonon
//! [1]
//! [2]
#include <Phonon/MediaObject>
//! [2]

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//! [0]
undefined reference to `_vt.11QPushButton'
//! [0]
//! [1]
ANSI C++ forbids declaration ... with no type
//! [1]
//! [2]
c:\program.obj not found
//! [2]
//! [3]
-universal -sdk /Developer/SDKs/MacOSX10.4u.sdk
//! [3]
//! [4]
QMAKE_MAC_SDK=/Developer/SDKs/MacOSX10.4u.sdk
CONFIG+=x86 ppc
//! [4]
//! [5]
/usr/bin/ld: /System/Library/Frameworks/Carbon.framework/Carbon
load command 20 unknown cmd field
/usr/bin/ld: /usr/lib/libSystem.dylib
load command 6 unknown cmd field
//! [5]
//! [6]
ld: common symbols not allowed with MH_DYLIB output format with the -multi_module option
/usr/local/mysql/lib/libmysqlclient.a(my_error.o) definition of common _errbuff (size 512)
/usr/bin/libtool: internal link edit command failed
//! [6]

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//! [0]
class MyStylePlugin : public QStylePlugin
{
public:
QStringList keys() const;
QStyle *create(const QString &key);
};
//! [0]
//! [1]
#include "mystyleplugin.h"
QStringList MyStylePlugin::keys() const
{
return QStringList() << "MyStyle";
}
QStyle *MyStylePlugin::create(const QString &key)
{
if (key.toLower() == "mystyle")
return new MyStyle;
return 0;
}
Q_EXPORT_PLUGIN2(pnp_mystyleplugin, MyStylePlugin)
//! [1]
//! [2]
QApplication::setStyle(QStyleFactory::create("MyStyle"));
//! [2]
//! [3]
CONFIG += release
//! [3]
//! [4]
#include <QApplication>
#include <QtPlugin>
Q_IMPORT_PLUGIN(qjpeg)
Q_IMPORT_PLUGIN(qgif)
Q_IMPORT_PLUGIN(qkrcodecs)
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
...
return app.exec();
}
//! [4]
//! [5]
QTPLUGIN += qjpeg \
qgif \
qkrcodecs
//! [5]
//! [6]
HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Plugin Cache 4.2.debug
HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Plugin Cache 4.2.false
//! [6]

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//! [0]
point = new Object();
point.x = 12;
point.y = 35;
//! [0]
//! [1]
function manhattanLength(point) {
return point.x + point.y;
}
//! [1]
//! [2]
manhattanLength = function(point) {
return point.x + point.y;
}
//! [2]
//! [3]
point.manhattanLength = function() {
return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [3]
//! [4]
class Point() {
var x;
var y;
function manhattanLength() { return x + y; }
}
//! [4]
//! [5]
point.manhattanLength = function() {
return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [5]
//! [6]
class Car {
var regNumber;
function Car(regnr) {
regNumber = regnr;
}
}
var car = new Car("ABC 123");
//! [6]
//! [7]
function Car(regnr) {
this.regNumber = regnr;
}
var car = new Car("ABC 123");
//! [7]
//! [8]
var car = new Object();
car.constructor = function(regnr) { ... }
car.constructor();
//! [8]
//! [9]
class Car {
var regNumber;
function Car(regnr) {
regNumber = regnr;
}
function toString() {
return regNumber;
}
}
//! [9]
//! [10]
function Car(regnr) {
this.regNumber = regnr;
this.toString = function() { return this.regNumber; }
}
//! [10]
//! [11]
function Car(regnr) {
this.regNumber = regnr;
}
Car.prototype.toString = function() { return this.regNumber; }
//! [11]
//! [12]
class GasolineCar extends Car {
function GasolineCar(regnr) {
Car(regnr);
}
function toString() {
return "GasolineCar(" + regNumber + ")";
}
}
//! [12]
//! [13]
function GasolineCar(regnr) {
Car(regnr);
}
GasolineCar.prototype = new Car();
GasolineCar.prototype.toString = function() {
return "GasolineCar(" + this.regNumber + ")";
}
//! [13]
//! [14]
class Car {
static var globalCount = 0;
}
print(Car.globalCount);
//! [14]
//! [15]
Car.globalCount = 0;
print(Car.globalCount);
//! [15]
//! [16]
QPushButton *button = new QPushButton();
button->setObjectName("button");
interpreter->addTransientObject(button);
//! [16]
//! [17]
QPushButton *button = new QPushButton();
QScriptValue scriptButton = engine.newQObject(button);
engine.globalObject().setProperty("button", scriptButton);
//! [17]
//! [18]
ModuleFactory::ModuleFactory()
{
registerClass( "ImageSource", &ImgSource::staticMetaObject);
...
}
QObject *ModuleFactory::create( const QString &type,
const QVariantList &,
QObject * )
{
if ( type == "ImageSource" )
return new ImgSource();
...
}
...
interpreter.addObjectFactory(new ModuleFactory());
//! [18]
//! [19]
QScriptValue construct_QPushButton(QScriptContext *, QScriptEngine *engine) {
return engine->newQObject(new QPushButton());
}
...
QScriptValue constructor = engine.newFunction(construct_QPushButton);
QScriptValue value =
engine.newQMetaObject(&QPushButton::staticMetaObject,
constructor);
engine.globalObject().setProperty("QPushButton", value);
//! [19]

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//! [0]
item->scene().sceneRect().intersects(item->sceneBoundingRect());
//! [0]
//! [1]
class TileScene : public QGraphicsScene
{
public:
...
void setTiles(const QPixmap &pixmap, int h, int v,
int tileHeight, int tileWidth);
void setTile(int x, int y, int tilenum);
private:
QRect tileRect(int x, int y) const;
QRect tileRect(int tileNum) const;
QVector<QVector<int> > tiles;
QPixmap tilePixmap;
int tileW, tileH;
int hTiles, vTiles;
};
//! [1]
//! [2]
void TileScene::setTiles(const QPixmap &pixmap, int h, int v,
int tileHeight, int tileWidth)
{
tilePixmap = pixmap;
tileW = tileWidth;
tileH = tileHeight;
hTiles = h;
vTiles = v;
tiles.resize(v);
for (int y = 0; y < v; ++y)
tiles[y].resize(h);
}
//! [2]
//! [3]
void TileScene::setTile(int x, int y, int tilenum)
{
tiles[y][x] = tilenum;
update(tileRect(x, y));
}
//! [3]
//! [4]
QRect TileScene::tileRect(int x, int y) const
{
return QRect(x * tileW, y * tileH, tileW, tileH);
}
//! [4]
//! [5]
QRect TileScene::tileRect(int tileNum) const
{
int numHTiles = tilePixmap.width() / tileW;
int numVTiles = tilePixmap.height() / tileH;
return tileRect(tileNum % numHTiles, tileNum / numHTiles);
}
//! [5]
//! [6]
void drawBackground(QPainter *painter, const QRectF &exposed)
{
for (int y = 0; y < vTiles; ++y) {
for (int x = 0; x < hTiles; ++x) {
QRect destRect = tileRect(x, y);
if (exposed.intersects(destRect)) {
painter->drawPixmap(destRect, tilePixmap,
tileRect(tiles[y][x]));
}
}
}
}
//! [6]
//! [7]
// Before
Q3CanvasEllipse ellipse(10, 10);
// After
QGraphicsEllipseItem ellipse(-5, -5, 10, 10);
//! [7]
//! [8]
static QPainterPath fromControlPoints(const Q3PointArray &pa)
{
QPainterPath path;
path.moveTo(pa[0]);
for (int i = 1; i < pa.size(); i += 3)
path.cubicTo(pa[i], pa[(i + 1) % pa.size()], pa[(i + 2) % pa.size()]);
return path;
}
//! [8]
//! [9]
wildcardPath.replace("%1", "*");
QFileInfo fi(wildcardPath);
QList<QPixmap> frames;
foreach (QString entry, QDir(fi.path(), fi.fileName()).entryList())
frames << QPixmap(fi.path() + "/" + entry);
//! [9]

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//! [0]
namespace Ui {
class HelloWorld
{
public:
QVBoxLayout *vboxLayout;
QPushButton *pushButton;
void setupUi(QWidget *HelloWorld)
{
HelloWorld->setObjectName(QString::fromUtf8("HelloWorld"));
vboxLayout = new QVBoxLayout(HelloWorld);
vboxLayout->setObjectName(QString::fromUtf8("vboxLayout"));
pushButton = new QPushButton(HelloWorld);
pushButton->setObjectName(QString::fromUtf8("pushButton"));
vboxLayout->addWidget(pushButton);
retranslateUi(HelloWorld);
}
};
}
//! [0]
//! [1]
#include <QApplication>
#include <QWidget>
#include "ui_helloworld.h" // defines Ui::HelloWorld
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QWidget w;
Ui::HelloWorld ui;
ui.setupUi(&w);
w.show();
return app.exec();
}
//! [1]
//! [2]
#include <QApplication>
#include <QWidget>
#include "ui_helloworld.h" // defines Ui::HelloWorld
class HelloWorldWidget : public QWidget, public Ui::HelloWorld
{
Q_OBJECT
public:
HelloWorldWidget(QWidget *parent = 0)
: QWidget(parent)
{ setupUi(this); }
};
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
HelloWorldWidget w;
w.show();
return app.exec();
}
//! [2]
//! [3]
uic3 myform.ui > myform.h
uic3 -impl myform.h myform.ui > myform.cpp
//! [3]
//! [4]
uic3 -convert myform3.ui > myform4.ui
//! [4]
//! [5]
class HelloWorldWidget : public QWidget, public Ui::HelloWorld
{
Q_OBJECT
public:
HelloWorldWidget(QWidget *parent = 0);
public slots:
void mySlot();
};
HelloWorldWidget::HelloWorldWidget(QWidget *parent)
: QWidget(parent)
{
setupUi(this);
QObject::connect(pushButton, SIGNAL(clicked()),
this, SLOT(mySlot()));
}
void HelloWorldWidget::mySlot()
{
...
}
//! [5]
//! [6]
class HelloWorldWidget : public QWidget, public Ui::HelloWorld
{
Q_OBJECT
public:
HelloWorldWidget(QWidget *parent = 0);
public slots:
void on_pushButton_clicked();
};
HelloWorldWidget::HelloWorldWidget(QWidget *parent)
: QWidget(parent)
{
setupUi(this);
}
void HelloWorldWidget::on_pushButton_clicked()
{
...
}
//! [6]
//! [7]
<RCC version="1.0">
<qresource prefix="/icons">
<file>yes.png</file>
<file>no.png</file>
</qresource>
</RCC>
//! [7]
//! [8]
RESOURCES += icons.qrc
//! [8]
//! [9]
QFile file(":/icons/yes.png");
QIcon icon(":/icons/no.png");
QPixmap pixmap(":/icons/no.png");
//! [9]

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//! [0]
void MyButton::paintEvent(QPaintEvent *)
{
QPainter painter(this);
drawButton(&painter);
}
//! [0]
//! [1]
ba.at(0) = 'X';
//! [1]
//! [2]
ba[0] = 'X';
//! [2]
//! [3]
if (!cache.insert(key, object))
delete object;
//! [3]
//! [4]
cache.insert(key, object);
//! [4]
//! [5]
Q3Cache<QWidget> cache;
cache.insert(widget->name(), widget);
...
QWidget *foo = cache.take("foo");
if (foo)
foo->show();
//! [5]
//! [6]
typedef QWidget *QWidgetPtr;
QCache<QString, QWidgetPtr> cache;
cache.insert(widget->name(), new QWidgetPtr(widget));
...
QWidgetPtr *ptr = cache.take("foo");
if (ptr) {
QWidget *foo = *ptr;
delete ptr;
foo->show();
}
//! [6]
//! [7]
painter.setBrush(palette().brush(QPalette::Text));
//! [7]
//! [8]
QByteArray ba("Hello");
ba.size(); // returns 5 (the '\0' is not counted)
ba.length(); // returns 5
ba.data()[5]; // returns '\0'
//! [8]
//! [9]
dict.replace(key, value);
//! [9]
//! [10]
delete hash.take(key);
hash.insert(key, value);
//! [10]
//! [11]
dict.remove(key, value);
//! [11]
//! [12]
delete hash.take(key);
//! [12]
//! [13]
dict.clear();
//! [13]
//! [14]
while (!hash.isEmpty()) {
T *value = *hash.begin();
hash.erase(hash.begin());
delete value;
}
//! [14]
//! [15]
qDeleteAll(hash);
hash.clear();
//! [15]
//! [16]
Q3DictIterator<QWidget> i(dict);
while (i.current() != 0) {
do_something(i.currentKey(), i.current());
++i;
}
//! [16]
//! [17]
QHashIterator<QString, QWidget *> i(hash);
while (i.hasNext()) {
i.next(); // must come first
do_something(i.key(), i.value());
}
//! [17]
//! [18]
QList<QWidget *> myWidgets = qFindChildren<QWidget *>(myParent);
//! [18]
//! [19]
list.replace(index, value);
//! [19]
//! [20]
delete list[index];
list[index] = value;
//! [20]
//! [21]
list.removeFirst();
//! [21]
//! [22]
delete list.takeFirst();
//! [22]
//! [23]
list.removeLast();
//! [23]
//! [24]
delete list.takeLast();
//! [24]
//! [25]
list.remove(index);
//! [25]
//! [26]
delete list.takeAt(index);
//! [26]
//! [27]
list.remove(value);
//! [27]
//! [28]
int i = list.indexOf(value);
if (i != -1)
delete list.takeAt(i);
//! [28]
//! [29]
list.remove();
//! [29]
//! [30]
QMutableListIterator<T *> i;
...
delete i.value();
i.remove();
//! [30]
//! [31]
list.clear();
//! [31]
//! [32]
while (!list.isEmpty())
delete list.takeFirst();
//! [32]
//! [33]
qDeleteAll(list);
list.clear();
//! [33]
//! [34]
QPtrList<QWidget> list;
...
while (list.current() != 0) {
do_something(list.current());
list.next();
}
//! [34]
//! [35]
QList<QWidget *> list;
...
QListIterator<QWidget *> i(list);
while (i.hasNext())
do_something(i.next());
//! [35]
//! [36]
QPtrList<QWidget> list;
...
QPtrListIterator<QWidget> i;
while (i.current() != 0) {
do_something(i.current());
i.next();
}
//! [36]
//! [37]
QList<QWidget *> list;
...
QListIterator<QWidget *> i(list);
while (i.hasNext())
do_something(i.next());
//! [37]
//! [38]
queue.dequeue();
//! [38]
//! [39]
delete queue.dequeue();
//! [39]
//! [40]
queue.remove();
//! [40]
//! [41]
delete queue.dequeue();
//! [41]
//! [42]
queue.clear();
//! [42]
//! [43]
while (!queue.isEmpty())
delete queue.dequeue();
//! [43]
//! [44]
qDeleteAll(queue);
queue.clear();
//! [44]
//! [45]
stack.pop();
//! [45]
//! [46]
delete stack.pop();
//! [46]
//! [47]
stack.remove();
//! [47]
//! [48]
delete stack.pop();
//! [48]
//! [49]
stack.clear();
//! [49]
//! [50]
while (!stack.isEmpty())
delete stack.pop();
//! [50]
//! [51]
qDeleteAll(stack);
stack.clear();
//! [51]
//! [52]
vect.insert(i, ptr);
//! [52]
//! [53]
delete vect[i];
vect[i] = ptr;
//! [53]
//! [54]
vect.remove(i);
//! [54]
//! [55]
delete vect[i];
vect[i] = 0;
//! [55]
//! [56]
T *ptr = vect.take(i);
//! [56]
//! [57]
T *ptr = vect[i];
vect[i] = 0;
//! [57]
//! [58]
vect.resize(n)
//! [58]
//! [59]
while (n > vect.size())
vect.append(0);
while (n < vect.size() {
T *ptr = vect.last();
vect.remove(vect.size() - 1);
delete ptr;
}
//! [59]
//! [60]
vect.clear();
//! [60]
//! [61]
for (int i = 0; i < vect.size(); ++i)
T *ptr = vect[i];
vect[i] = 0;
delete ptr;
}
//! [61]
//! [62]
qDeleteAll(vect);
vect.clear();
//! [62]
//! [63]
struct Shared
{
Shared() : count(1) {}
void ref() { ++count; }
bool deref() { return !--count; }
uint count;
};
//! [63]
//! [63a]
// Declare the object
QSimpleRichText richText(text, font);
// Set the width of the paragraph to w
richText.setWidth(w);
// Or set a resonable default size
richText.adjustSize();
// Query for its used size
int width = richText.widthUsed();
int height = richText.height();
// Draw
richText.draw(painter, x, y, clipRect, colorGroup);
//! [63a]
//! [63b]
// Declare the object
QTextDocument doc;
// If text is rich text, use setHtml()
doc.setHtml(text);
// Otherwise, use setPlainText()
doc.setPlainText(text);
// Set the width of the paragraph of text to w
doc.setTextWidth(w);
// Query for the used size
int width = doc.idealWidth();
int height = doc.size().height();
// Draw
painter.translate(x, y);
doc.drawContents(painter, clipRect);
// If you have a palette/colorgroup you can draw using lower-level functions:
QAbstractTextDocumentLayout::PaintContext context;
context.palette = myPalette;
doc.documentLayout()->draw(painter, context);
//! [63b]
//! [63c]
QSlider *slider;
slider->style()->subControlRect(CC_Slider, sliderOption, SC_SliderHandle, slider);
//! [63c]
//! [64]
QString greeting = "Hello";
const char *badData = greeting.toAscii().constData(); // data is invalid
QByteArray asciiData = greeting.toAscii();
const char *goodData = asciiData.constData();
//! [64]
//! [65]
str.at(0) = 'X';
//! [65]
//! [66]
str[0] = 'X';
//! [66]

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//! [0]
Q_PROPERTY(type name
READ getFunction
[WRITE setFunction]
[RESET resetFunction]
[NOTIFY notifySignal]
[DESIGNABLE bool]
[SCRIPTABLE bool]
[STORED bool]
[USER bool])
//! [0]
//! [1]
Q_PROPERTY(bool focus READ hasFocus)
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled)
Q_PROPERTY(QCursor cursor READ cursor WRITE setCursor RESET unsetCursor)
//! [1]
//! [2]
Q_PROPERTY(QDate date READ getDate WRITE setDate)
//! [2]
//! [3]
QPushButton *button = new QPushButton;
QObject *object = button;
button->setDown(true);
object->setProperty("down", true);
//! [3]
//! [4]
QObject *object = ...
const QMetaObject *metaobject = object->metaObject();
int count = metaobject->propertyCount();
for (int i=0; i<count; ++i) {
QMetaProperty metaproperty = metaobject->property(i);
const char *name = metaproperty.name();
QVariant value = object->property(name);
...
}
//! [4]
//! [5]
class MyClass : public QObject
{
Q_OBJECT
Q_PROPERTY(Priority priority READ priority WRITE setPriority)
Q_ENUMS(Priority)
public:
MyClass(QObject *parent = 0);
~MyClass();
enum Priority { High, Low, VeryHigh, VeryLow };
void setPriority(Priority priority);
Priority priority() const;
};
//! [5]
//! [6]
MyClass *myinstance = new MyClass;
QObject *object = myinstance;
myinstance->setPriority(MyClass::VeryHigh);
object->setProperty("priority", "VeryHigh");
//! [6]
//! [7]
Q_CLASSINFO("Version", "3.0.0")
//! [7]

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//! [0]
Q3AsciiDict<QLineEdit> fields; // char* keys, QLineEdit* values
fields.insert( "forename", new QLineEdit( this ) );
fields.insert( "surname", new QLineEdit( this ) );
fields["forename"]->setText( "Homer" );
fields["surname"]->setText( "Simpson" );
Q3AsciiDictIterator<QLineEdit> it( fields ); // See Q3AsciiDictIterator
for( ; it.current(); ++it )
cout << it.currentKey() << ": " << it.current()->text() << endl;
cout << endl;
if ( fields["forename"] && fields["surname"] )
cout << fields["forename"]->text() << " "
<< fields["surname"]->text() << endl; // Prints "Homer Simpson"
fields.remove( "forename" ); // Does not delete the line edit
if ( ! fields["forename"] )
cout << "forename is not in the dictionary" << endl;
//! [0]
//! [1]
Q3AsciiDict<char> dict;
...
if ( dict.find(key) )
dict.remove( key );
dict.insert( key, item );
//! [1]
//! [2]
Q3AsciiDict<QLineEdit> fields;
fields.insert( "forename", new QLineEdit( this ) );
fields.insert( "surname", new QLineEdit( this ) );
fields.insert( "age", new QLineEdit( this ) );
fields["forename"]->setText( "Homer" );
fields["surname"]->setText( "Simpson" );
fields["age"]->setText( "45" );
Q3AsciiDictIterator<QLineEdit> it( fields );
for( ; it.current(); ++it )
cout << it.currentKey() << ": " << it.current()->text() << endl;
cout << endl;
// Output (random order):
// age: 45
// surname: Simpson
// forename: Homer
//! [2]

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//! [0]
Q3Dict<char> dict;
...
if ( dict.find( key ) )
dict.remove( key );
dict.insert( key, item );
//! [0]
//! [1]
Q3Dict<QLineEdit> fields;
fields.insert( "forename", new QLineEdit( this ) );
fields.insert( "surname", new QLineEdit( this ) );
fields.insert( "age", new QLineEdit( this ) );
fields["forename"]->setText( "Homer" );
fields["surname"]->setText( "Simpson" );
fields["age"]->setText( "45" );
Q3DictIterator<QLineEdit> it( fields );
for( ; it.current(); ++it )
cout << it.currentKey() << ": " << it.current()->text() << endl;
cout << endl;
// Output (random order):
// age: 45
// surname: Simpson
// forename: Homer
//! [1]

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//! [0]
Q3IntDict<QLineEdit> fields; // long int keys, QLineEdit* values
for ( int i = 0; i < 3; i++ )
fields.insert( i, new QLineEdit( this ) );
fields[0]->setText( "Homer" );
fields[1]->setText( "Simpson" );
fields[2]->setText( "45" );
Q3IntDictIterator<QLineEdit> it( fields );
for ( ; it.current(); ++it )
cout << it.currentKey() << ": " << it.current()->text() << endl;
for ( int i = 0; i < 3; i++ )
cout << fields[i]->text() << " "; // Prints "Homer Simpson 45"
cout << endl;
fields.remove( 1 ); // Does not delete the line edit
for ( int i = 0; i < 3; i++ )
if ( fields[i] )
cout << fields[i]->text() << " "; // Prints "Homer 45"
//! [0]
//! [1]
Q3IntDict<char> dict;
// ...
if ( dict.find(key) )
dict.remove( key );
dict.insert( key, item );
//! [1]
//! [2]
Q3IntDict<QLineEdit> fields;
for ( int i = 0; i < 3; i++ )
fields.insert( i, new QLineEdit( this ) );
fields[0]->setText( "Homer" );
fields[1]->setText( "Simpson" );
fields[2]->setText( "45" );
Q3IntDictIterator<QLineEdit> it( fields );
for ( ; it.current(); ++it )
cout << it.currentKey() << ": " << it.current()->text() << endl;
// Output (random order):
// 0: Homer
// 1: Simpson
// 2: 45
//! [2]

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//! [0]
#include <q3memarray.h>
#include <stdio.h>
Q3MemArray<int> fib( int num ) // returns fibonacci array
{
Q_ASSERT( num > 2 );
Q3MemArray<int> f( num ); // array of ints
f[0] = f[1] = 1;
for ( int i = 2; i < num; i++ )
f[i] = f[i-1] + f[i-2];
return f;
}
int main()
{
Q3MemArray<int> a = fib( 6 ); // get first 6 fibonaccis
for ( int i = 0; i < a.size(); i++ )
qDebug( "%d: %d", i, a[i] );
qDebug( "1 is found %d times", a.contains(1) );
qDebug( "5 is found at index %d", a.find(5) );
return 0;
}
//! [0]
//! [1]
0: 1
1: 1
2: 2
3: 3
4: 5
5: 8
1 is found 2 times
5 is found at index 4
//! [1]
//! [2]
// MyStruct may be padded to 4 or 8 bytes
struct MyStruct
{
short i; // 2 bytes
char c; // 1 byte
};
Q3MemArray<MyStruct> a(1);
a[0].i = 5;
a[0].c = 't';
MyStruct x;
x.i = '5';
x.c = 't';
int i = a.find( x ); // may return -1 if the pad bytes differ
//! [2]
//! [3]
static char bindata[] = { 231, 1, 44, ... };
QByteArray a;
a.setRawData( bindata, sizeof(bindata) ); // a points to bindata
QDataStream s( a, IO_ReadOnly ); // open on a's data
s >> <something>; // read raw bindata
a.resetRawData( bindata, sizeof(bindata) ); // finished
//! [3]
//! [4]
static char bindata[] = { 231, 1, 44, ... };
QByteArray a, b;
a.setRawData( bindata, sizeof(bindata) ); // a points to bindata
a.resize( 8 ); // will crash
b = a; // will crash
a[2] = 123; // might crash
// forget to resetRawData: will crash
//! [4]

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//! [0]
Q3PtrDict<char> fields; // void* keys, char* values
QLineEdit *le1 = new QLineEdit( this );
le1->setText( "Simpson" );
QLineEdit *le2 = new QLineEdit( this );
le2->setText( "Homer" );
QLineEdit *le3 = new QLineEdit( this );
le3->setText( "45" );
fields.insert( le1, "Surname" );
fields.insert( le2, "Forename" );
fields.insert( le3, "Age" );
Q3PtrDictIterator<char> it( fields );
for( ; it.current(); ++it )
cout << it.current() << endl;
cout << endl;
if ( fields[le1] ) // Prints "Surname: Simpson"
cout << fields[le1] << ": " << le1->text() << endl;
if ( fields[le2] ) // Prints "Forename: Homer"
cout << fields[le2] << ": " << le2->text() << endl;
fields.remove( le1 ); // Removes le1 from the dictionary
cout << le1->text() << endl; // Prints "Simpson"
//! [0]
//! [1]
Q3PtrDict<ItemType> dict;
...
if ( dict.find( key ) )
dict.remove( key );
dict.insert( key, item );
//! [1]
//! [2]
Q3PtrDict<char> fields;
QLineEdit *le1 = new QLineEdit( this );
le1->setText( "Simpson" );
QLineEdit *le2 = new QLineEdit( this );
le2->setText( "Homer" );
QLineEdit *le3 = new QLineEdit( this );
le3->setText( "45" );
fields.insert( le1, "Surname" );
fields.insert( le2, "Forename" );
fields.insert( le3, "Age" );
Q3PtrDictIterator<char> it( fields );
for( ; it.current(); ++it ) {
QLineEdit *le = (QLineEdit)it.currentKey();
cout << it.current() << ": " << le->text() << endl;
}
cout << endl;
// Output (random order):
// Forename: Homer
// Age: 45
// Surname: Simpson
//! [2]

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//! [0]
class Employee
{
public:
Employee() : sn( 0 ) { }
Employee( const QString& forename, const QString& surname, int salary )
: fn( forename ), sn( surname ), sal( salary )
{ }
void setSalary( int salary ) { sal = salary; }
QString forename() const { return fn; }
QString surname() const { return sn; }
int salary() const { return sal; }
private:
QString fn;
QString sn;
int sal;
};
Q3PtrList<Employee> list;
list.setAutoDelete( TRUE ); // the list owns the objects
list.append( new Employee("John", "Doe", 50000) );
list.append( new Employee("Jane", "Williams", 80000) );
list.append( new Employee("Tom", "Jones", 60000) );
Employee *employee;
for ( employee = list.first(); employee; employee = list.next() )
cout << employee->surname().latin1() << ", " <<
employee->forename().latin1() << " earns " <<
employee->salary() << endl;
cout << endl;
// very inefficient for big lists
for ( uint i = 0; i < list.count(); ++i )
if ( list.at(i) )
cout << list.at( i )->surname().latin1() << endl;
//! [0]
//! [1]
Doe, John earns 50000
Williams, Jane earns 80000
Jones, Tom earns 60000
Doe
Williams
Jones
//! [1]
//! [2]
if ( list.findRef( item ) != -1 )
list.remove();
//! [2]
//! [3]
Q3PtrList<Employee> list;
list.append( new Employee("John", "Doe", 50000) );
list.append( new Employee("Jane", "Williams", 80000) );
list.append( new Employee("Tom", "Jones", 60000) );
Q3PtrListIterator<Employee> it( list );
Employee *employee;
while ( (employee = it.current()) != 0 ) {
++it;
cout << employee->surname().latin1() << ", " <<
employee->forename().latin1() << " earns " <<
employee->salary() << endl;
}
//! [3]
//! [4]
Doe, John earns 50000
Williams, Jane earns 80000
Jones, Tom earns 60000
//! [4]

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//! [0]
class Employee
{
public:
Employee(): sn(0) {}
Employee( const QString& forename, const QString& surname, int salary )
: fn(forename), sn(surname), sal(salary)
{}
QString forename() const { return fn; }
QString surname() const { return sn; }
int salary() const { return sal; }
void setSalary( int salary ) { sal = salary; }
private:
QString fn;
QString sn;
int sal;
};
typedef Q3ValueList<Employee> EmployeeList;
EmployeeList list;
list.append( Employee("John", "Doe", 50000) );
list.append( Employee("Jane", "Williams", 80000) );
list.append( Employee("Tom", "Jones", 60000) );
Employee mary( "Mary", "Hawthorne", 90000 );
list.append( mary );
mary.setSalary( 100000 );
EmployeeList::iterator it;
for ( it = list.begin(); it != list.end(); ++it )
cout << (*it).surname().latin1() << ", " <<
(*it).forename().latin1() << " earns " <<
(*it).salary() << endl;
// Output:
// Doe, John earns 50000
// Williams, Jane earns 80000
// Hawthorne, Mary earns 90000
// Jones, Tom earns 60000
//! [0]
//! [1]
Q3ValueList<int> list;
list.append( 1 );
list.append( 2 );
list.append( 3 );
...
if ( !list.empty() ) {
// OK, modify the first item
int& i = list.first();
i = 18;
}
...
Q3ValueList<double> dlist;
double d = dlist.last(); // undefined
//! [1]
//! [2]
Q3ValueList<int> l;
...
Q3ValueList<int>::iterator it = l.end();
--it;
if ( it != end() )
// ...
//! [2]
//! [3]
Q3ValueList<int> l;
...
Q3ValueList<int>::iterator it = l.end();
--it;
if ( it != end() )
// ...
//! [3]
//! [4]
EmployeeList::iterator it;
for ( it = list.begin(); it != list.end(); ++it )
cout << (*it).surname().latin1() << ", " <<
(*it).forename().latin1() << " earns " <<
(*it).salary() << endl;
// Output:
// Doe, John earns 50000
// Williams, Jane earns 80000
// Hawthorne, Mary earns 90000
// Jones, Tom earns 60000
//! [4]

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//! [0]
Q3ValueStack<int> stack;
stack.push( 1 );
stack.push( 2 );
stack.push( 3 );
while ( ! stack.isEmpty() )
cout << "Item: " << stack.pop() << endl;
// Output:
// Item: 3
// Item: 2
// Item: 1
//! [0]

85
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//! [0]
#include <qvaluevector.h>
#include <qstring.h>
#include <stdio.h>
class Employee
{
public:
Employee(): s(0) {}
Employee( const QString& name, int salary )
: n( name ), s( salary )
{ }
QString name() const { return n; }
int salary() const { return s; }
void setSalary( int salary ) { s = salary; }
private:
QString n;
int s;
};
int main()
{
typedef Q3ValueVector<Employee> EmployeeVector;
EmployeeVector vec( 3 ); // vector of 3 Employees
vec[0] = Employee( "Bill", 50000 );
vec[1] = Employee( "Steve", 80000 );
vec[2] = Employee( "Ron", 60000 );
Employee joe( "Joe", 50000 );
vec.push_back( joe ); // vector expands to accommodate 4 Employees
joe.setSalary( 70000 );
EmployeeVector::iterator it;
for( it = vec.begin(); it != vec.end(); ++it )
printf( "%s earns %d\n", (*it).name().latin1(), (*it).salary() );
return 0;
}
//! [0]
//! [1]
Bill earns 50000
Steve earns 80000
Ron earns 60000
Joe earns 50000
//! [1]
//! [2]
Q3ValueVector<int> vec1; // an empty vector
vec1[10] = 4; // WARNING: undefined, probably a crash
Q3ValueVector<QString> vec2(25); // initialize with 25 elements
vec2[10] = "Dave"; // OK
//! [2]
//! [3]
void func( Q3ValueVector<int>& vec )
{
if ( vec.size() > 10 ) {
vec[9] = 99; // OK
}
};
//! [3]
//! [4]
Q3ValueVector<int> vec( 3 );
vec.push_back( 1 );
vec.push_back( 2 );
vec.push_back( 3 );
...
if ( !vec.empty() ) {
// OK: modify the first element
int& i = vec.front();
i = 18;
}
...
Q3ValueVector<double> dvec;
double d = dvec.back(); // undefined behavior
//! [4]

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//! [0]
QStringList list;
list << "one" << "two" << "three";
qFill(list.begin(), list.end(), "eleven");
// list: [ "eleven", "eleven", "eleven" ]
//! [0]
//! [1]
qFill(list.begin() + 1, list.end(), "six");
// list: [ "eleven", "six", "six" ]
//! [1]
//! [2]
QChar resolveEntity(const QString &entity)
{
static const QLatin1String name_table[] = {
"AElig", "Aacute", ..., "zwnj"
};
static const ushort value_table[] = {
0x0061, 0x00c1, ..., 0x200c
};
int N = sizeof(name_table) / sizeof(name_table[0]);
const QLatin1String *name = qBinaryFind(name_table, name_table + N,
entity);
int index = name - name_table;
if (index == N)
return QChar();
return QChar(value_table[index]);
}
//! [2]
//! [3]
QChar resolveEntity(const QString &entity)
{
static QMap<QString, int> entityMap;
if (!entityMap) {
entityMap.insert("AElig", 0x0061);
entityMap.insert("Aacute", 0x00c1);
...
entityMap.insert("zwnj", 0x200c);
}
return QChar(entityMap.value(entity));
}
//! [3]
//! [4]
QStringList list;
list << "one" << "two" << "three";
QVector<QString> vect1(3);
qCopy(list.begin(), list.end(), vect1.begin());
// vect: [ "one", "two", "three" ]
QVector<QString> vect2(8);
qCopy(list.begin(), list.end(), vect2.begin() + 2);
// vect: [ "", "", "one", "two", "three", "", "", "" ]
//! [4]
//! [5]
QStringList list;
list << "one" << "two" << "three";
QVector<QString> vect(5);
qCopyBackward(list.begin(), list.end(), vect.end());
// vect: [ "", "", "one", "two", "three" ]
//! [5]
//! [6]
QStringList list;
list << "one" << "two" << "three";
QVector<QString> vect(3);
vect[0] = "one";
vect[1] = "two";
vect[2] = "three";
bool ret1 = qEqual(list.begin(), list.end(), vect.begin());
// ret1 == true
vect[2] = "seven";
bool ret2 = qEqual(list.begin(), list.end(), vect.begin());
// ret2 == false
//! [6]
//! [7]
QStringList list;
list << "one" << "two" << "three";
qFill(list.begin(), list.end(), "eleven");
// list: [ "eleven", "eleven", "eleven" ]
qFill(list.begin() + 1, list.end(), "six");
// list: [ "eleven", "six", "six" ]
//! [7]
//! [8]
QStringList list;
list << "one" << "two" << "three";
QStringList::iterator i1 = qFind(list.begin(), list.end(), "two");
// i1 == list.begin() + 1
QStringList::iterator i2 = qFind(list.begin(), list.end(), "seventy");
// i2 == list.end()
//! [8]
//! [9]
QList<int> list;
list << 3 << 3 << 6 << 6 << 6 << 8;
int countOf6 = 0;
qCount(list.begin(), list.end(), 6, countOf6);
// countOf6 == 3
int countOf7 = 0;
qCount(list.begin(), list.end(), 7, countOf7);
// countOf7 == 0
//! [9]
//! [10]
double pi = 3.14;
double e = 2.71;
qSwap(pi, e);
// pi == 2.71, e == 3.14
//! [10]
//! [11]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qSort(list.begin(), list.end());
// list: [ 6, 12, 12, 33, 68 ]
//! [11]
//! [12]
bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
{
return s1.toLower() < s2.toLower();
}
int doSomething()
{
QStringList list;
list << "AlPha" << "beTA" << "gamma" << "DELTA";
qSort(list.begin(), list.end(), caseInsensitiveLessThan);
// list: [ "AlPha", "beTA", "DELTA", "gamma" ]
}
//! [12]
//! [13]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qSort(list.begin(), list.end(), qGreater<int>());
// list: [ 68, 33, 12, 12, 6 ]
//! [13]
//! [14]
QStringList list;
list << "AlPha" << "beTA" << "gamma" << "DELTA";
QMap<QString, QString> map;
foreach (QString str, list)
map.insert(str.toLower(), str);
list = map.values();
//! [14]
//! [15]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qStableSort(list.begin(), list.end());
// list: [ 6, 12, 12, 33, 68 ]
//! [15]
//! [16]
bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
{
return s1.toLower() < s2.toLower();
}
int doSomething()
{
QStringList list;
list << "AlPha" << "beTA" << "gamma" << "DELTA";
qStableSort(list.begin(), list.end(), caseInsensitiveLessThan);
// list: [ "AlPha", "beTA", "DELTA", "gamma" ]
}
//! [16]
//! [17]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qStableSort(list.begin(), list.end(), qGreater<int>());
// list: [ 68, 33, 12, 12, 6 ]
//! [17]
//! [18]
QList<int> list;
list << 3 << 3 << 6 << 6 << 6 << 8;
QList<int>::iterator i = qLowerBound(list.begin(), list.end(), 5);
list.insert(i, 5);
// list: [ 3, 3, 5, 6, 6, 6, 8 ]
i = qLowerBound(list.begin(), list.end(), 12);
list.insert(i, 12);
// list: [ 3, 3, 5, 6, 6, 6, 8, 12 ]
//! [18]
//! [19]
QVector<int> vect;
vect << 3 << 3 << 6 << 6 << 6 << 8;
QVector<int>::iterator begin6 =
qLowerBound(vect.begin(), vect.end(), 6);
QVector<int>::iterator end6 =
qUpperBound(begin6, vect.end(), 6);
QVector<int>::iterator i = begin6;
while (i != end6) {
*i = 7;
++i;
}
// vect: [ 3, 3, 7, 7, 7, 8 ]
//! [19]
//! [20]
QList<int> list;
list << 3 << 3 << 6 << 6 << 6 << 8;
QList<int>::iterator i = qUpperBound(list.begin(), list.end(), 5);
list.insert(i, 5);
// list: [ 3, 3, 5, 6, 6, 6, 8 ]
i = qUpperBound(list.begin(), list.end(), 12);
list.insert(i, 12);
// list: [ 3, 3, 5, 6, 6, 6, 8, 12 ]
//! [20]
//! [21]
QVector<int> vect;
vect << 3 << 3 << 6 << 6 << 6 << 8;
QVector<int>::iterator begin6 =
qLowerBound(vect.begin(), vect.end(), 6);
QVector<int>::iterator end6 =
qUpperBound(vect.begin(), vect.end(), 6);
QVector<int>::iterator i = begin6;
while (i != end6) {
*i = 7;
++i;
}
// vect: [ 3, 3, 7, 7, 7, 8 ]
//! [21]
//! [22]
QVector<int> vect;
vect << 3 << 3 << 6 << 6 << 6 << 8;
QVector<int>::iterator i =
qBinaryFind(vect.begin(), vect.end(), 6);
// i == vect.begin() + 2 (or 3 or 4)
//! [22]
//! [23]
QList<Employee *> list;
list.append(new Employee("Blackpool", "Stephen"));
list.append(new Employee("Twist", "Oliver"));
qDeleteAll(list.begin(), list.end());
list.clear();
//! [23]
//! [24]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qSort(list.begin(), list.end(), qLess<int>());
// list: [ 68, 33, 12, 12, 6 ]
//! [24]
//! [25]
QList<int> list;
list << 33 << 12 << 68 << 6 << 12;
qSort(list.begin(), list.end(), qGreater<int>());
// list: [ 68, 33, 12, 12, 6 ]
//! [25]

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