source: trunk/doc/src/demos/composition.qdoc@ 1036

Last change on this file since 1036 was 846, checked in by Dmitry A. Kuminov, 14 years ago

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1/****************************************************************************
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3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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5** Contact: Nokia Corporation ([email protected])
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27
28/*!
29 \example demos/composition
30 \title Composition Modes
31
32 This demo shows some of the more advanced composition modes supported by Qt.
33
34 \image composition-demo.png
35
36 The two most common forms of composition are \bold{Source} and \bold{SourceOver}.
37 \bold{Source} is used to draw opaque objects onto a paint device. In this mode,
38 each pixel in the source replaces the corresponding pixel in the destination.
39 In \bold{SourceOver} composition mode, the source object is transparent and is
40 drawn on top of the destination.
41
42 In addition to these standard modes, Qt defines the complete set of composition modes
43 as defined by X. Porter and Y. Duff. See the QPainter documentation for details.
44*/
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