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129 lines
6.3 KiB
129 lines
6.3 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/canvas/tqcanvas.cpp:2800 -->
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13 years ago
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQCanvasPixmap Class</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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body { background: #ffffff; color: black; }
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--></style>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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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>
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<p>The TQCanvasPixmap class provides pixmaps for TQCanvasSprites.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="tqcanvas-h.html">tqcanvas.h</a>></tt>
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<p>Inherits <a href="ntqpixmap.html">TQPixmap</a>.
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<p><a href="tqcanvaspixmap-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQCanvasPixmap"><b>TQCanvasPixmap</b></a> ( const TQString & datafilename )</li>
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<li class=fn><a href="#TQCanvasPixmap-2"><b>TQCanvasPixmap</b></a> ( const TQImage & image )</li>
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<li class=fn><a href="#TQCanvasPixmap-3"><b>TQCanvasPixmap</b></a> ( const TQPixmap & pm, const TQPoint & offset )</li>
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<li class=fn><a href="#~TQCanvasPixmap"><b>~TQCanvasPixmap</b></a> ()</li>
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<li class=fn>int <a href="#offsetX"><b>offsetX</b></a> () const</li>
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<li class=fn>int <a href="#offsetY"><b>offsetY</b></a> () const</li>
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<li class=fn>void <a href="#setOffset"><b>setOffset</b></a> ( int x, int y )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQCanvasPixmap class provides pixmaps for TQCanvasSprites.
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<p>
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<p> If you want to show a single pixmap on a <a href="tqcanvas.html">TQCanvas</a> use a
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<a href="tqcanvassprite.html">TQCanvasSprite</a> with just one pixmap.
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<p> When pixmaps are inserted into a <a href="tqcanvaspixmaparray.html">TQCanvasPixmapArray</a> they are held
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as TQCanvasPixmaps. <a href="tqcanvassprite.html">TQCanvasSprite</a>s are used to show pixmaps on
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<a href="tqcanvas.html">TQCanvas</a>es and hold their pixmaps in a TQCanvasPixmapArray. If
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you retrieve a frame (pixmap) from a TQCanvasSprite it will be
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returned as a TQCanvasPixmap.
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<p> The pixmap is a <a href="ntqpixmap.html">TQPixmap</a> and can only be set in the constructor.
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There are three different constructors, one taking a TQPixmap, one
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a <a href="ntqimage.html">TQImage</a> and one a file name that refers to a file in any
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supported file format (see <a href="qimageio.html">TQImageIO</a>).
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<p> TQCanvasPixmap can have a hotspot which is defined in terms of an (x,
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y) offset. When you create a TQCanvasPixmap from a PNG file or from
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a TQImage that has a <a href="ntqimage.html#offset">TQImage::offset</a>(), the offset() is initialized
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appropriately, otherwise the constructor leaves it at (0, 0). You
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can set it later using <a href="#setOffset">setOffset</a>(). When the TQCanvasPixmap is used
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in a <a href="tqcanvassprite.html">TQCanvasSprite</a>, the offset position is the point at
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<a href="tqcanvasitem.html#x">TQCanvasItem::x</a>() and <a href="tqcanvasitem.html#y">TQCanvasItem::y</a>(), not the top-left corner of
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the pixmap.
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<p> Note that for TQCanvasPixmap objects created by a TQCanvasSprite, the
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position of each TQCanvasPixmap object is set so that the hotspot
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stays in the same position.
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<p> <p>See also <a href="tqcanvaspixmaparray.html">TQCanvasPixmapArray</a>, <a href="tqcanvasitem.html">TQCanvasItem</a>, <a href="tqcanvassprite.html">TQCanvasSprite</a>, <a href="graphics.html">Graphics Classes</a>, and <a href="images.html">Image Processing Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQCanvasPixmap"></a>TQCanvasPixmap::TQCanvasPixmap ( const <a href="ntqstring.html">TQString</a> & datafilename )
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</h3>
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Constructs a TQCanvasPixmap that uses the image stored in <em>datafilename</em>.
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<h3 class=fn><a name="TQCanvasPixmap-2"></a>TQCanvasPixmap::TQCanvasPixmap ( const <a href="ntqimage.html">TQImage</a> & image )
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</h3>
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Constructs a TQCanvasPixmap from the image <em>image</em>.
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<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 )
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</h3>
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Constructs a TQCanvasPixmap from the pixmap <em>pm</em> using the offset
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<em>offset</em>.
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<h3 class=fn><a name="~TQCanvasPixmap"></a>TQCanvasPixmap::~TQCanvasPixmap ()
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</h3>
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Destroys the pixmap.
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<h3 class=fn>int <a name="offsetX"></a>TQCanvasPixmap::offsetX () const
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</h3>
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<p> Returns the x-offset of the pixmap's hotspot.
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<p> <p>See also <a href="#setOffset">setOffset</a>().
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<h3 class=fn>int <a name="offsetY"></a>TQCanvasPixmap::offsetY () const
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</h3>
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<p> Returns the y-offset of the pixmap's hotspot.
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<p> <p>See also <a href="#setOffset">setOffset</a>().
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<h3 class=fn>void <a name="setOffset"></a>TQCanvasPixmap::setOffset ( int x, int y )
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</h3>
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<p> Sets the offset of the pixmap's hotspot to (<em>x</em>, <em>y</em>).
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<p> <b>Warning:</b> Do not call this function if any TQCanvasSprites are
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currently showing this pixmap.
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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