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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qt3support.html">Qt3Support</a></li> <li>Q3CanvasPixmapArray</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">Q3CanvasPixmapArray Class Reference</h1> <!-- $$$Q3CanvasPixmapArray-brief --> <p>The Q3CanvasPixmapArray class provides an array of Q3CanvasPixmaps. <a href="#details">More...</a></p> <!-- @@@Q3CanvasPixmapArray --> <pre class="cpp"> <span class="preprocessor">#include <Q3CanvasPixmapArray></span></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See <a href="porting4.html">Porting to Qt 4</a> for more information.</p> <ul> <li><a href="q3canvaspixmaparray-members.html">List of all members, including inherited members</a></li> <li><a href="q3canvaspixmaparray-obsolete.html">Obsolete members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#Q3CanvasPixmapArray">Q3CanvasPixmapArray</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#Q3CanvasPixmapArray-2">Q3CanvasPixmapArray</a></b> ( const QString & <i>datafilenamepattern</i>, int <i>fc</i> = 0 )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#Q3CanvasPixmapArray-4">Q3CanvasPixmapArray</a></b> ( Q3ValueList<QPixmap> <i>list</i>, Q3PointArray <i>hotspots</i> = Q3PointArray() )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#dtor.Q3CanvasPixmapArray">~Q3CanvasPixmapArray</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> uint </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#count">count</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Q3CanvasPixmap * </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#image">image</a></b> ( int <i>i</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#isValid">isValid</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#readCollisionMasks">readCollisionMasks</a></b> ( const QString & <i>filename</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#readPixmaps">readPixmaps</a></b> ( const QString & <i>filenamepattern</i>, int <i>fc</i> = 0 )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3canvaspixmaparray.html#setImage">setImage</a></b> ( int <i>i</i>, Q3CanvasPixmap * <i>p</i> )</td></tr> </table> <a name="details"></a> <!-- $$$Q3CanvasPixmapArray-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The Q3CanvasPixmapArray class provides an array of Q3CanvasPixmaps.</p> <p>This class is used by <a href="q3canvassprite.html">Q3CanvasSprite</a> to hold an array of pixmaps. It is used to implement animated sprites, i.e. images that change over time, with each pixmap in the array holding one frame.</p> <p>Depending on the constructor you use you can load multiple pixmaps into the array either from a directory (specifying a wildcard pattern for the files), or from a list of QPixmaps. You can also read in a set of pixmaps after construction using <a href="q3canvaspixmaparray.html#readPixmaps">readPixmaps</a>().</p> <p>Individual pixmaps can be set with <a href="q3canvaspixmaparray.html#setImage">setImage</a>() and retrieved with <a href="q3canvaspixmaparray.html#image">image</a>(). The number of pixmaps in the array is returned by <a href="q3canvaspixmaparray.html#count">count</a>().</p> <p><a href="q3canvassprite.html">Q3CanvasSprite</a> uses an image's mask for collision detection. You can change this by reading in a separate set of image masks using <a href="q3canvaspixmaparray.html#readCollisionMasks">readCollisionMasks</a>().</p> </div> <p><b>See also </b><a href="http://qt.digia.com/product/">QtCanvas</a> and <a href="graphicsview-porting.html">Porting to Graphics View</a>.</p> <!-- @@@Q3CanvasPixmapArray --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$Q3CanvasPixmapArray[overload1]$$$Q3CanvasPixmapArray --> <h3 class="fn"><a name="Q3CanvasPixmapArray"></a>Q3CanvasPixmapArray::<span class="name">Q3CanvasPixmapArray</span> ()</h3> <p>Constructs an invalid array (i.e. <a href="q3canvaspixmaparray.html#isValid">isValid</a>() will return false). You must call <a href="q3canvaspixmaparray.html#readPixmaps">readPixmaps</a>() before being able to use this <a href="q3canvaspixmaparray.html" class="compat">Q3CanvasPixmapArray</a>.</p> <!-- @@@Q3CanvasPixmapArray --> <!-- $$$Q3CanvasPixmapArray$$$Q3CanvasPixmapArrayconstQString&int --> <h3 class="fn"><a name="Q3CanvasPixmapArray-2"></a>Q3CanvasPixmapArray::<span class="name">Q3CanvasPixmapArray</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>datafilenamepattern</i>, <span class="type">int</span> <i>fc</i> = 0 )</h3> <p>Constructs a <a href="q3canvaspixmaparray.html" class="compat">Q3CanvasPixmapArray</a> from files.</p> <p>The <i>fc</i> parameter sets the number of frames to be loaded for this image.</p> <p>If <i>fc</i> is not 0, <i>datafilenamepattern</i> should contain "%1", e.g. "foo%1.png". The actual filenames are formed by replacing the %1 with four-digit integers from 0 to (fc - 1), e.g. foo0000.png, foo0001.png, foo0002.png, etc.</p> <p>If <i>fc</i> is 0, <i>datafilenamepattern</i> is asssumed to be a filename, and the image contained in this file will be loaded as the first (and only) frame.</p> <p>If <i>datafilenamepattern</i> does not exist, is not readable, isn't an image, or some other error occurs, the array ends up empty and <a href="q3canvaspixmaparray.html#isValid">isValid</a>() returns false.</p> <!-- @@@Q3CanvasPixmapArray --> <!-- $$$Q3CanvasPixmapArray$$$Q3CanvasPixmapArrayQ3ValueList<QPixmap>Q3PointArray --> <h3 class="fn"><a name="Q3CanvasPixmapArray-4"></a>Q3CanvasPixmapArray::<span class="name">Q3CanvasPixmapArray</span> ( <span class="type"><a href="q3valuelist.html">Q3ValueList</a></span><<span class="type"><a href="qpixmap.html">QPixmap</a></span>> <i>list</i>, <span class="type"><a href="q3pointarray.html">Q3PointArray</a></span> <i>hotspots</i> = Q3PointArray() )</h3> <p>Constructs a <a href="q3canvaspixmaparray.html" class="compat">Q3CanvasPixmapArray</a> from the list of QPixmaps in the <i>list</i>. Each pixmap will get a hotspot according to the <i>hotspots</i> array. If no hotspots are specified, each one is set to be at position (0, 0).</p> <p>If an error occurs, <a href="q3canvaspixmaparray.html#isValid">isValid</a>() will return false.</p> <!-- @@@Q3CanvasPixmapArray --> <!-- $$$~Q3CanvasPixmapArray[overload1]$$$~Q3CanvasPixmapArray --> <h3 class="fn"><a name="dtor.Q3CanvasPixmapArray"></a>Q3CanvasPixmapArray::<span class="name">~Q3CanvasPixmapArray</span> ()</h3> <p>Destroys the pixmap array and all the pixmaps it contains.</p> <!-- @@@~Q3CanvasPixmapArray --> <!-- $$$count[overload1]$$$count --> <h3 class="fn"><a name="count"></a><span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> Q3CanvasPixmapArray::<span class="name">count</span> () const</h3> <p>Returns the number of pixmaps in the array.</p> <!-- @@@count --> <!-- $$$image[overload1]$$$imageint --> <h3 class="fn"><a name="image"></a><span class="type"><a href="q3canvaspixmap.html">Q3CanvasPixmap</a></span> * Q3CanvasPixmapArray::<span class="name">image</span> ( <span class="type">int</span> <i>i</i> ) const</h3> <p>Returns pixmap <i>i</i> in the array, if <i>i</i> is non-negative and less than than <a href="q3canvaspixmaparray.html#count">count</a>(), and returns an unspecified value otherwise.</p> <p><b>See also </b><a href="q3canvaspixmaparray.html#setImage">setImage</a>().</p> <!-- @@@image --> <!-- $$$isValid[overload1]$$$isValid --> <h3 class="fn"><a name="isValid"></a><span class="type">bool</span> Q3CanvasPixmapArray::<span class="name">isValid</span> () const</h3> <p>Returns true if the pixmap array is valid; otherwise returns false.</p> <!-- @@@isValid --> <!-- $$$readCollisionMasks[overload1]$$$readCollisionMasksconstQString& --> <h3 class="fn"><a name="readCollisionMasks"></a><span class="type">bool</span> Q3CanvasPixmapArray::<span class="name">readCollisionMasks</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>filename</i> )</h3> <p>Reads new collision masks for the array.</p> <p>By default, <a href="q3canvassprite.html" class="compat">Q3CanvasSprite</a> uses the image mask of a sprite to detect collisions. Use this function to set your own collision image masks.</p> <p>If <a href="q3canvaspixmaparray.html#count">count</a>() is 1 <i>filename</i> must specify a real filename to read the mask from. If <a href="q3canvaspixmaparray.html#count">count</a>() is greater than 1, the <i>filename</i> must contain a "%1" that will get replaced by the number of the mask to be loaded, just like <a href="q3canvaspixmaparray.html#readPixmaps">Q3CanvasPixmapArray::readPixmaps</a>().</p> <p>All collision masks must be 1-bit images or this function call will fail.</p> <p>If the file isn't readable, contains the wrong number of images, or there is some other error, this function will return false, and the array will be flagged as invalid; otherwise this function returns true.</p> <p><b>See also </b><a href="q3canvaspixmaparray.html#isValid">isValid</a>().</p> <!-- @@@readCollisionMasks --> <!-- $$$readPixmaps[overload1]$$$readPixmapsconstQString&int --> <h3 class="fn"><a name="readPixmaps"></a><span class="type">bool</span> Q3CanvasPixmapArray::<span class="name">readPixmaps</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>filenamepattern</i>, <span class="type">int</span> <i>fc</i> = 0 )</h3> <p>Reads one or more pixmaps into the pixmap array.</p> <p>If <i>fc</i> is not 0, <i>filenamepattern</i> should contain "%1", e.g. "foo%1.png". The actual filenames are formed by replacing the %1 with four-digit integers from 0 to (fc - 1), e.g. foo0000.png, foo0001.png, foo0002.png, etc.</p> <p>If <i>fc</i> is 0, <i>filenamepattern</i> is asssumed to be a filename, and the image contained in this file will be loaded as the first (and only) frame.</p> <p>If <i>filenamepattern</i> does not exist, is not readable, isn't an image, or some other error occurs, this function will return false, and <a href="q3canvaspixmaparray.html#isValid">isValid</a>() will return false; otherwise this function will return true.</p> <p><b>See also </b><a href="q3canvaspixmaparray.html#isValid">isValid</a>().</p> <!-- @@@readPixmaps --> <!-- $$$setImage[overload1]$$$setImageintQ3CanvasPixmap* --> <h3 class="fn"><a name="setImage"></a><span class="type">void</span> Q3CanvasPixmapArray::<span class="name">setImage</span> ( <span class="type">int</span> <i>i</i>, <span class="type"><a href="q3canvaspixmap.html">Q3CanvasPixmap</a></span> * <i>p</i> )</h3> <p>Replaces the pixmap at index <i>i</i> with pixmap <i>p</i>.</p> <p>The array takes ownership of <i>p</i> and will delete <i>p</i> when the array itself is deleted.</p> <p>If <i>i</i> is beyond the end of the array the array is extended to at least i+1 elements, with elements <a href="q3canvaspixmaparray.html#count">count</a>() to i-1 being initialized to 0.</p> <p><b>See also </b><a href="q3canvaspixmaparray.html#image">image</a>().</p> <!-- @@@setImage --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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