qcanvaspixmap(3qt)

1QCanvasPixmap(3qt)                                          QCanvasPixmap(3qt)
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NAME

6       QCanvasPixmap - Pixmaps for QCanvasSprites
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SYNOPSIS

9       #include <qcanvas.h>
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11       Inherits QPixmap.
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13   Public Members
14       QCanvasPixmap ( const QString & datafilename )
15       QCanvasPixmap ( const QImage & image )
16       QCanvasPixmap ( const QPixmap & pm, const QPoint & offset )
17       ~QCanvasPixmap ()
18       int offsetX () const
19       int offsetY () const
20       void setOffset ( int x, int y )
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DESCRIPTION

23       The QCanvasPixmap class provides pixmaps for QCanvasSprites.
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25       If you want to show a single pixmap on a QCanvas use a QCanvasSprite
26       with just one pixmap.
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28       When pixmaps are inserted into a QCanvasPixmapArray they are held as
29       QCanvasPixmaps. QCanvasSprites are used to show pixmaps on QCanvases
30       and hold their pixmaps in a QCanvasPixmapArray. If you retrieve a frame
31       (pixmap) from a QCanvasSprite it will be returned as a QCanvasPixmap.
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33       The pixmap is a QPixmap and can only be set in the constructor. There
34       are three different constructors, one taking a QPixmap, one a QImage
35       and one a file name that refers to a file in any supported file format
36       (see QImageIO).
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38       QCanvasPixmap can have a hotspot which is defined in terms of an (x, y)
39       offset. When you create a QCanvasPixmap from a PNG file or from a
40       QImage that has a QImage::offset(), the offset() is initialized
41       appropriately, otherwise the constructor leaves it at (0, 0). You can
42       set it later using setOffset(). When the QCanvasPixmap is used in a
43       QCanvasSprite, the offset position is the point at QCanvasItem::x() and
44       QCanvasItem::y(), not the top-left corner of the pixmap.
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46       Note that for QCanvasPixmap objects created by a QCanvasSprite, the
47       position of each QCanvasPixmap object is set so that the hotspot stays
48       in the same position.
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50       See also QCanvasPixmapArray, QCanvasItem, QCanvasSprite, Graphics
51       Classes, and Image Processing Classes.
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MEMBER FUNCTION DOCUMENTATION

QCanvasPixmap::QCanvasPixmap ( const QString & datafilename )

55       Constructs a QCanvasPixmap that uses the image stored in datafilename.
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QCanvasPixmap::QCanvasPixmap ( const QImage & image )

58       Constructs a QCanvasPixmap from the image image.
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QCanvasPixmap::QCanvasPixmap ( const QPixmap & pm, const QPoint & offset )

61       Constructs a QCanvasPixmap from the pixmap pm using the offset offset.
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QCanvasPixmap::~QCanvasPixmap ()

64       Destroys the pixmap.
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int QCanvasPixmap::offsetX () const

67       Returns the x-offset of the pixmap's hotspot.
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69       See also setOffset().
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int QCanvasPixmap::offsetY () const

72       Returns the y-offset of the pixmap's hotspot.
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74       See also setOffset().
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void QCanvasPixmap::setOffset ( int x, int y )

77       Sets the offset of the pixmap's hotspot to (x, y).
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79       Warning: Do not call this function if any QCanvasSprites are currently
80       showing this pixmap.
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COPYRIGHT

88       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
89       license file included in the distribution for a complete license
90       statement.
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AUTHOR

93       Generated automatically from the source code.
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BUGS

96       If you find a bug in Qt, please report it as described in
97       http://doc.trolltech.com/bughowto.html.  Good bug reports help us to
98       help you. Thank you.
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100       The definitive Qt documentation is provided in HTML format; it is
101       located at $QTDIR/doc/html and can be read using Qt Assistant or with a
102       web browser. This man page is provided as a convenience for those users
103       who prefer man pages, although this format is not officially supported
104       by Trolltech.
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106       If you find errors in this manual page, please report them to qt-
107       bugs@trolltech.com.  Please include the name of the manual page
108       (qcanvaspixmap.3qt) and the Qt version (3.3.8).
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112Trolltech AS                    2 February 2007             QCanvasPixmap(3qt)