e92c1976a6
Change-Id: Ifa6a99db27ce51529489bf077a839a3107b524d2 Reviewed-by: Qt Doc Bot <qt_docbot@qt-project.org> Reviewed-by: Paul Olav Tvete <paul.tvete@nokia.com>
45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:FDL$
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** GNU Free Documentation License
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** Alternatively, this file may be used under the terms of the GNU Free
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** Documentation License version 1.3 as published by the Free Software
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** Foundation and appearing in the file included in the packaging of
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** this file.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms
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** and conditions contained in a signed written agreement between you
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** and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*!
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\example painting/composition
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\title Composition Modes
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This demo shows some of the more advanced composition modes supported by Qt.
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\image composition-demo.png
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The two most common forms of composition are \b{Source} and \b{SourceOver}.
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\b{Source} is used to draw opaque objects onto a paint device. In this mode,
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each pixel in the source replaces the corresponding pixel in the destination.
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In \b{SourceOver} composition mode, the source object is transparent and is
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drawn on top of the destination.
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In addition to these standard modes, Qt defines the complete set of composition modes
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as defined by X. Porter and Y. Duff. See the QPainter documentation for details.
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*/
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