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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQCanvasPixmap Class Reference< br > < small > [< a href = "canvas.html" > canvas module< / a > ]< / small > < / h1 >
< p > The TQCanvasPixmap class provides pixmaps for TQCanvasSprites.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qcanvas-h.html" > ntqcanvas.h< / a > > < / tt >
< p > Inherits < a href = "ntqpixmap.html" > TQPixmap< / a > .
< p > < a href = "qcanvaspixmap-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQCanvasPixmap" > < b > TQCanvasPixmap< / b > < / a > ( const TQString & datafilename )< / li >
< li class = fn > < a href = "#TQCanvasPixmap-2" > < b > TQCanvasPixmap< / b > < / a > ( const TQImage & image )< / li >
< li class = fn > < a href = "#TQCanvasPixmap-3" > < b > TQCanvasPixmap< / b > < / a > ( const TQPixmap & pm, const TQPoint & offset )< / li >
< li class = fn > < a href = "#~TQCanvasPixmap" > < b > ~TQCanvasPixmap< / b > < / a > ()< / li >
< li class = fn > int < a href = "#offsetX" > < b > offsetX< / b > < / a > () const< / li >
< li class = fn > int < a href = "#offsetY" > < b > offsetY< / b > < / a > () const< / li >
< li class = fn > void < a href = "#setOffset" > < b > setOffset< / b > < / a > ( int x, int y )< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQCanvasPixmap class provides pixmaps for TQCanvasSprites.
< p >
< p > If you want to show a single pixmap on a < a href = "ntqcanvas.html" > TQCanvas< / a > use a
< a href = "qcanvassprite.html" > TQCanvasSprite< / a > with just one pixmap.
< p > When pixmaps are inserted into a < a href = "qcanvaspixmaparray.html" > TQCanvasPixmapArray< / a > they are held
as TQCanvasPixmaps. < a href = "qcanvassprite.html" > TQCanvasSprite< / a > s are used to show pixmaps on
< a href = "ntqcanvas.html" > TQCanvas< / a > es and hold their pixmaps in a TQCanvasPixmapArray. If
you retrieve a frame (pixmap) from a TQCanvasSprite it will be
returned as a TQCanvasPixmap.
< p > The pixmap is a < a href = "ntqpixmap.html" > TQPixmap< / a > and can only be set in the constructor.
There are three different constructors, one taking a TQPixmap, one
a < a href = "ntqimage.html" > TQImage< / a > and one a file name that refers to a file in any
supported file format (see < a href = "qimageio.html" > TQImageIO< / a > ).
< p > TQCanvasPixmap can have a hotspot which is defined in terms of an (x,
y) offset. When you create a TQCanvasPixmap from a PNG file or from
a TQImage that has a < a href = "ntqimage.html#offset" > TQImage::offset< / a > (), the offset() is initialized
appropriately, otherwise the constructor leaves it at (0, 0). You
can set it later using < a href = "#setOffset" > setOffset< / a > (). When the TQCanvasPixmap is used
in a < a href = "qcanvassprite.html" > TQCanvasSprite< / a > , the offset position is the point at
< a href = "qcanvasitem.html#x" > TQCanvasItem::x< / a > () and < a href = "qcanvasitem.html#y" > TQCanvasItem::y< / a > (), not the top-left corner of
the pixmap.
< p > Note that for TQCanvasPixmap objects created by a TQCanvasSprite, the
position of each TQCanvasPixmap object is set so that the hotspot
stays in the same position.
< p > < p > See also < a href = "qcanvaspixmaparray.html" > TQCanvasPixmapArray< / a > , < a href = "qcanvasitem.html" > TQCanvasItem< / a > , < a href = "qcanvassprite.html" > TQCanvasSprite< / a > , < a href = "graphics.html" > Graphics Classes< / a > , and < a href = "images.html" > Image Processing Classes< / a > .
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQCanvasPixmap" > < / a > TQCanvasPixmap::TQCanvasPixmap ( const < a href = "ntqstring.html" > TQString< / a > & datafilename )
< / h3 >
Constructs a TQCanvasPixmap that uses the image stored in < em > datafilename< / em > .
< h3 class = fn > < a name = "TQCanvasPixmap-2" > < / a > TQCanvasPixmap::TQCanvasPixmap ( const < a href = "ntqimage.html" > TQImage< / a > & image )
< / h3 >
Constructs a TQCanvasPixmap from the image < em > image< / em > .
< h3 class = fn > < a name = "TQCanvasPixmap-3" > < / a > TQCanvasPixmap::TQCanvasPixmap ( const < a href = "ntqpixmap.html" > TQPixmap< / a > & pm, const < a href = "ntqpoint.html" > TQPoint< / a > & offset )
< / h3 >
Constructs a TQCanvasPixmap from the pixmap < em > pm< / em > using the offset
< em > offset< / em > .
< h3 class = fn > < a name = "~TQCanvasPixmap" > < / a > TQCanvasPixmap::~TQCanvasPixmap ()
< / h3 >
Destroys the pixmap.
< h3 class = fn > int < a name = "offsetX" > < / a > TQCanvasPixmap::offsetX () const
< / h3 >
< p > Returns the x-offset of the pixmap's hotspot.
< p > < p > See also < a href = "#setOffset" > setOffset< / a > ().
< h3 class = fn > int < a name = "offsetY" > < / a > TQCanvasPixmap::offsetY () const
< / h3 >
< p > Returns the y-offset of the pixmap's hotspot.
< p > < p > See also < a href = "#setOffset" > setOffset< / a > ().
< h3 class = fn > void < a name = "setOffset" > < / a > TQCanvasPixmap::setOffset ( int x, int y )
< / h3 >
< p > Sets the offset of the pixmap's hotspot to (< em > x< / em > , < em > y< / em > ).
< p > < b > Warning:< / b > Do not call this function if any TQCanvasSprites are
currently showing this pixmap.
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