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author | axis <qt-info@nokia.com> | 2009-04-24 14:03:55 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-27 07:09:01 (GMT) |
commit | e74c8dc65e2feffb9a55d00aee5ca634fba41df8 (patch) | |
tree | 3a131f9235fb6a455793178d8313655e4fd0036e /doc/src/examples | |
parent | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (diff) | |
parent | 211bea9838bcc2acd7f54b65468fe1be2d81b1e0 (diff) | |
download | Qt-e74c8dc65e2feffb9a55d00aee5ca634fba41df8.zip Qt-e74c8dc65e2feffb9a55d00aee5ca634fba41df8.tar.gz Qt-e74c8dc65e2feffb9a55d00aee5ca634fba41df8.tar.bz2 |
Merge branch '4.5' of git@scm.dev.nokia.troll.no:qt/qt
Configure.exe recompiled with MSVC6.
Conflicts:
configure.exe
examples/network/network.pro
src/gui/dialogs/qfiledialog_p.h
src/gui/dialogs/qfilesystemmodel_p.h
src/gui/kernel/qapplication.cpp
tests/auto/_Categories/qmake.txt
tests/auto/qfile/test/test.pro
tests/auto/qfile/tst_qfile.cpp
tests/auto/qlibrary/tst_qlibrary.cpp
tests/auto/qline/tst_qline.cpp
tests/auto/qstyle/tst_qstyle.cpp
tests/auto/qtextstream/tst_qtextstream.cpp
tests/auto/qtranslator/qtranslator.pro
tests/auto/qwaitcondition/tst_qwaitcondition.cpp
translations/qt_ja_JP.ts
Diffstat (limited to 'doc/src/examples')
-rw-r--r-- | doc/src/examples/collidingmice-example.qdoc | 39 | ||||
-rw-r--r-- | doc/src/examples/extension.qdoc | 11 | ||||
-rw-r--r-- | doc/src/examples/fancybrowser.qdoc | 51 | ||||
-rw-r--r-- | doc/src/examples/googlechat.qdoc | 51 | ||||
-rw-r--r-- | doc/src/examples/googlesuggest.qdoc | 51 | ||||
-rw-r--r-- | doc/src/examples/qxmlstreambookmarks.qdoc | 5 | ||||
-rw-r--r-- | doc/src/examples/svggenerator.qdoc | 136 |
7 files changed, 318 insertions, 26 deletions
diff --git a/doc/src/examples/collidingmice-example.qdoc b/doc/src/examples/collidingmice-example.qdoc index 7ea2ca2..657a204 100644 --- a/doc/src/examples/collidingmice-example.qdoc +++ b/doc/src/examples/collidingmice-example.qdoc @@ -66,7 +66,7 @@ \section1 Mouse Class Definition - The \c mouse class inherits both QObject and QGraphicsItem. The + The \c mouse class inherits from QGraphicsItem. The QGraphicsItem class is the base class for all graphical items in the Graphics View framework, and provides a light-weight foundation for writing your own custom items. @@ -78,14 +78,11 @@ {QGraphicsItem::}{boundingRect()}, which returns an estimate of the area painted by the item, and \l {QGraphicsItem::}{paint()}, which implements the actual painting. In addition, we reimplement - the \l {QGraphicsItem::}{shape()} function to return an accurate + the \l {QGraphicsItem::}{shape()} and \l {QGraphicsItem::}{advance()}. + We reimplement \l {QGraphicsItem::}{shape()} to return an accurate shape of our mouse item; the default implementation simply returns - the item's bounding rectangle. - - The rationale for deriving from QObject in addition to - QGraphicsItem is to be able to animate our items by reimplementing - QObject's \l {QObject::}{timerEvent()} function and use - QObject::startTimer() to generate timer events. + the item's bounding rectangle. We reimplement \l {QGraphicsItem::}{advance()} + to handle the animation so it all happens on one update. \section1 Mouse Class Definition @@ -105,19 +102,18 @@ calling the item's \l {QGraphicsItem::rotate()}{rotate()} function we alter the direction in which the mouse will start moving. - In the end we call QObject's \l {QObject::}{startTimer()} - function, emitting a timer event every 1000/33 millisecond. This - enables us to animate our mouse item using our reimplementation of - the \l {QObject::}{timerEvent()} function; whenever a mouse - receives a timer event it will trigger \l - {QObject::}{timerEvent()}: - + When the QGraphicsScene decides to advance the scene a frame it will call + QGraphicsItem::advance() on each of the items. This enables us to animate + our mouse using our reimplementation of the advance() function. + \snippet examples/graphicsview/collidingmice/mouse.cpp 4 \snippet examples/graphicsview/collidingmice/mouse.cpp 5 \snippet examples/graphicsview/collidingmice/mouse.cpp 6 - First we ensure that the mice stays within a circle with a radius - of 150 pixels. + First, we don't bother doing any advance if the step is 0 since we want to our advance in + the actual advance (advance() is called twice, once with step == 0 indicating that items + are about to advance and with step == 1 for the actual advance). We also ensure that the + mice stays within a circle with a radius of 150 pixels. Note the \l {QGraphicsItem::mapFromScene()}{mapFromScene()} function provided by QGraphicsItem. This function maps a position @@ -275,5 +271,12 @@ In the end, we set the application window's title and size before we enter the main event loop using the QApplication::exec() function. -*/ + Finally, we create a QTimer and connect its timeout() signal to the advance() + slot of the scene. Every time the timer fires, the scene will advance one frame. + We then tell the timer to fire every 1000/33 millisecond. This will + give us a frame rate of 30 frames a second, which is fast enough for most animations. + Doing the animation with a single timer connect to advance the scene ensures that all the + mice are moved at one point and, more importantly, only one update is sent to the screen + after all the mice have moved. +*/
\ No newline at end of file diff --git a/doc/src/examples/extension.qdoc b/doc/src/examples/extension.qdoc index 8a0ca3a..02e0698 100644 --- a/doc/src/examples/extension.qdoc +++ b/doc/src/examples/extension.qdoc @@ -80,9 +80,9 @@ user type a word to search for, we need several \l {QCheckBox}{QCheckBox}es to facilitate the search options, and we need three \l {QPushButton}{QPushButton}s: the \gui Find button to - start a search, the \gui More button to enable an advanced search, - and the \gui Close button to exit the application. Finally, we - need a QWidget representing the application's extension part. + start a search and the \gui More button to enable an advanced search. + Finally, we need a QWidget representing the application's extension + part. \section1 FindDialog Class Implementation @@ -128,8 +128,7 @@ the connection makes sure that the extension widget is shown depending on the state of \gui More button. - We also connect the \gui Close button to the QWidget::close() - slot, and we put the checkboxes associated with the advanced + We also put the check boxes associated with the advanced search options into a layout we install on the extension widget. \snippet examples/dialogs/extension/finddialog.cpp 4 @@ -137,7 +136,7 @@ Before we create the main layout, we create several child layouts for the widgets: First we allign the QLabel ans its buddy, the QLineEdit, using a QHBoxLayout. Then we vertically allign the - QLabel and QLineEdit with the checkboxes associated with the + QLabel and QLineEdit with the check boxes associated with the simple search, using a QVBoxLayout. We also create a QVBoxLayout for the buttons. In the end we lay out the two latter layouts and the extension widget using a QGridLayout. diff --git a/doc/src/examples/fancybrowser.qdoc b/doc/src/examples/fancybrowser.qdoc new file mode 100644 index 0000000..9001c20 --- /dev/null +++ b/doc/src/examples/fancybrowser.qdoc @@ -0,0 +1,51 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example webkit/fancybrowser + \title Fancy Browser Example + + The Fancy Browser example shows how to use jQuery with QtWebKit to + make a web browser with some special effects and content manipulation. + + \image fancybrowser-example.png + +*/ diff --git a/doc/src/examples/googlechat.qdoc b/doc/src/examples/googlechat.qdoc new file mode 100644 index 0000000..f2d61cf --- /dev/null +++ b/doc/src/examples/googlechat.qdoc @@ -0,0 +1,51 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example webkit/googlechat + \title Google Chat Example + + The Google Chat example shows how to use implement a simple Google Chat + client with QtWebKit. + + \image googlechat-example.png + +*/ diff --git a/doc/src/examples/googlesuggest.qdoc b/doc/src/examples/googlesuggest.qdoc new file mode 100644 index 0000000..a9b09f9 --- /dev/null +++ b/doc/src/examples/googlesuggest.qdoc @@ -0,0 +1,51 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example network/googlesuggest + \title Google Suggest Example + + The Google Suggest example shows how to use the network access manager + to get the list of suggested search terms from Google. + + \image googlesuggest-example.png + +*/ diff --git a/doc/src/examples/qxmlstreambookmarks.qdoc b/doc/src/examples/qxmlstreambookmarks.qdoc index 7059043..fb3a1c1 100644 --- a/doc/src/examples/qxmlstreambookmarks.qdoc +++ b/doc/src/examples/qxmlstreambookmarks.qdoc @@ -103,8 +103,9 @@ The \c read() function accepts a QIODevice and sets it using \l{QXmlStreamReader::setDevice()}{setDevice()}. The actual process - of reading only takes place in event the file is a valid XBEL 1.0 - file. Otherwise, the \l{QXmlStreamReader::raiseError()} + of reading only takes place if the file is a valid XBEL 1.0 file. + Note that the XML input needs to be well-formed to be accepted by + QXmlStreamReader. Otherwise, the \l{QXmlStreamReader::raiseError()} {raiseError()} function is used to display an error message. \snippet examples/xml/streambookmarks/xbelreader.cpp 1 diff --git a/doc/src/examples/svggenerator.qdoc b/doc/src/examples/svggenerator.qdoc new file mode 100644 index 0000000..32bb89a --- /dev/null +++ b/doc/src/examples/svggenerator.qdoc @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example painting/svggenerator + \title SVG Generator Example + + The SVG Generator example shows how to add SVG file export to applications. + + \image svggenerator-example.png + + Scalable Vector Graphics (SVG) is an XML-based language for describing + two-dimensional vector graphics. Qt provides classes for rendering and + generating SVG drawings. This example allows the user to create a simple + picture and save it to an SVG file. + + The example consists of two classes: \c Window and \c DisplayWidget. + + The \c Window class contains the application logic and constructs the user + interface from a Qt Designer \c{.ui} file as described in the + \l{Using a Designer .ui File in Your Application#The Multiple Inheritance Approach}{Qt Designer manual}. + It also contains the code to write an SVG file. + + The \c DisplayWidget class performs all the work of painting a picture on + screen. Since we want the SVG to resemble this picture as closely as + possible, we make this code available to the \c Window class so that it can + be used to generate SVG files. + + \section1 The DisplayWidget Class + + The \c DisplayWidget class displays a drawing consisting of a selection of + elements chosen by the user. These are defined using \c Shape and + \c Background enums that are included within the class definition: + + \snippet examples/painting/svggenerator/displaywidget.h DisplayWidget class definition + + Much of this class is used to configure the appearance of the drawing. The + \c paintEvent() and \c paint() functions are most relevant to the purpose + of this example, so we will describe these here and leave the reader to + look at the source code for the example to see how shapes and colors are + handled. + + We reimplement the QWidget::paintEvent() function to display the drawing + on screen: + + \snippet examples/painting/svggenerator/displaywidget.cpp paint event + + Here, we only construct a QPainter object, begin painting on the device + and set a render hint for improved output quality before calling the + \c paint() function to perform the painting itself. When this returns, + we close the painter and return. + + The \c paint() function is designed to be used for different painting + tasks. In this example, we use it to draw on a \c DisplayWidget instance + and on a QSvgGenerator object. We show how the painting is performed to + demonstrate that there is nothing device-specific about the process: + + \snippet examples/painting/svggenerator/displaywidget.cpp paint function + + \section1 The Window Class + + The \c Window class represents the example's window, containing the user + interface, which has been created using Qt Designer: + + \snippet examples/painting/svggenerator/window.h Window class definition + + As with the \c DisplayWidget class, we concentrate on the parts of the code + which are concerned with painting and SVG generation. In the \c Window + class, the \c saveSvg() function is called whenever the \gui{Save As...} + button is clicked; this connection was defined in the \c{window.ui} file + using Qt Designer. + + The start of the \c saveSvg() function performs the task of showing a file + dialog so that the user can specify a SVG file to save the drawing to. + + \snippet examples/painting/svggenerator/window.cpp save SVG + + In the rest of the function, we set up the generator and configure it to + generate output with the appropriate dimensions and write to the + user-specified file. We paint on the QSvgGenerator object in the same way + that we paint on a widget, calling the \c DisplayWidget::paint() function + so that we use exactly the same code that we used to display the drawing. + + The generation process itself begins with the call to the painter's + \l{QPainter::}{begin()} function and ends with call to its + \l{QPainter::}{end()} function. The QSvgGenerator paint device relies on + the explicit use of these functions to ensure that output is written to + the file. + + \section1 Further Reading + + The \l{SVG Viewer Example} shows how to display SVG drawings in an + application, and can be used to show the contents of SVG files created + by this example. + + See the QtSvg module documentation for more information about SVG and Qt's + SVG classes. +*/ |