<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/canvas/qcanvas.cpp:2800 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>TQCanvasPixmap Class</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <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. <!-- eof --> <hr><p> This file is part of the <a href="index.html">TQt toolkit</a>. 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