diff options
| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
|---|---|---|
| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/qpngimagepacker.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/qpngimagepacker.html')
| -rw-r--r-- | doc/html/qpngimagepacker.html | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/doc/html/qpngimagepacker.html b/doc/html/qpngimagepacker.html new file mode 100644 index 0000000..4aa9928 --- /dev/null +++ b/doc/html/qpngimagepacker.html @@ -0,0 +1,88 @@ +<!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/kernel/qpngio.cpp:653 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>QPNGImagePacker 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>QPNGImagePacker Class Reference</h1> + +<p>The QPNGImagePacker class creates well-compressed PNG animations. +<a href="#details">More...</a> +<p><tt>#include <<a href="qpngio-h.html">qpngio.h</a>></tt> +<p><a href="qpngimagepacker-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#QPNGImagePacker"><b>QPNGImagePacker</b></a> ( QIODevice * iod, int storage_depth, int conversionflags )</li> +<li class=fn>void <a href="#setPixelAlignment"><b>setPixelAlignment</b></a> ( int x )</li> +<li class=fn>bool <a href="#packImage"><b>packImage</b></a> ( const QImage & img )</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The QPNGImagePacker class creates well-compressed PNG animations. +<p> + +<p> By using transparency, QPNGImagePacker allows you to build a PNG +image from a sequence of QImages. +<p> Images are added using <a href="#packImage">packImage</a>(). +<p>See also <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="QPNGImagePacker"></a>QPNGImagePacker::QPNGImagePacker ( <a href="qiodevice.html">QIODevice</a> * iod, int storage_depth, int conversionflags ) +</h3> +Creates an image packer that writes PNG data to IO device <em>iod</em> +using a <em>storage_depth</em> bit encoding (use 8 or 32, depending on +the desired quality and compression requirements). +<p> If the image needs to be modified to fit in a lower-resolution +result (e.g. converting from 32-bit to 8-bit), use the <em>conversionflags</em> to specify how you'd prefer this to happen. +<p> <p>See also <a href="qt.html#ImageConversionFlags-enum">Qt::ImageConversionFlags</a>. + +<h3 class=fn>bool <a name="packImage"></a>QPNGImagePacker::packImage ( const <a href="qimage.html">QImage</a> & img ) +</h3> +Adds the image <em>img</em> to the PNG animation, analyzing the +differences between this and the previous image to improve +compression. + +<h3 class=fn>void <a name="setPixelAlignment"></a>QPNGImagePacker::setPixelAlignment ( int x ) +</h3> +Aligns pixel differences to <em>x</em> pixels. For example, using 8 can +improve playback on certain hardware. Normally the default of +1-pixel alignment (i.e. no alignment) gives better compression and +performance. + +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">Qt toolkit</a>. +Copyright © 1995-2007 +<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |