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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /doc/src/examples/activeqt/hierarchy.qdoc | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'doc/src/examples/activeqt/hierarchy.qdoc')
-rw-r--r-- | doc/src/examples/activeqt/hierarchy.qdoc | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/doc/src/examples/activeqt/hierarchy.qdoc b/doc/src/examples/activeqt/hierarchy.qdoc new file mode 100644 index 0000000..868d0ce --- /dev/null +++ b/doc/src/examples/activeqt/hierarchy.qdoc @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \page qaxserver-demo-hierarchy.html + \title Qt Widget Hierarchy + + \input examples/activeqt/hierarchy-demo.qdocinc +*/ + +/*! + \example activeqt/hierarchy + \title Hierarchy Example (ActiveQt) + + The Hierarchy example is shows how to write an in-process ActiveX + control. The control is a QWidget subclass with child widgets + that are accessible as sub-types. + + \snippet examples/activeqt/hierarchy/objects.h 0 + The \c QParentWidget class provides slots to create a widget + with a name, and to return a pointer to a named widget. The class + declaration uses \c Q_CLASSINFO() to provide the COM identifiers for + this class. + + \snippet examples/activeqt/hierarchy/objects.cpp 0 + The constructor of QParentWidget creates a vertical box layout. + New child widgets are automatically added to the layout. + + \snippet examples/activeqt/hierarchy/objects.cpp 1 + The \c createSubWidget slot creates a new \c QSubWidget with + the name provided in the parameter, and sets the label to that + name. The widget is also shown explicitly. + + \snippet examples/activeqt/hierarchy/objects.cpp 2 + The \c subWidget slot uses the \c QObject::child() function and + returns the first child of type \c QSubWidget that has the requested + name. + + \snippet examples/activeqt/hierarchy/objects.h 1 + The \c QSubWidget class has a single string-property \c label, + and implements the paintEvent to draw the label. The class uses + again \c Q_CLASSINFO to provide the COM identifiers, and also sets + the \e ToSuperClass attribute to \e QSubWidget, to ensure that only + no slots of any superclasses (i.e. QWidget) are exposed. + + \snippet examples/activeqt/hierarchy/objects.cpp 3 + \snippet examples/activeqt/hierarchy/objects.cpp 4 + The implementation of the QSubWidget class is self-explanatory. + + \snippet examples/activeqt/hierarchy/main.cpp 0 + The classes are then exported using a QAxFactory. \c QParentWidget is + exported as a full class (which can be created ), while \c QSubWidget is + only exported as a type, which can only be created indirectly through + APIs of \c QParentWidget. + + To build the example you must first build the QAxServer library. + Then run qmake and your make tool in \c examples/activeqt/hierarchy. + + The \l{qaxserver-demo-hierarchy.html}{demonstration} requires + your WebBrowser to support ActiveX controls, and scripting to be + enabled. + + \snippet examples/activeqt/hierarchy-demo.qdocinc 0 +*/ |