<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.2 $ -->
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  <refentry id="function.swfbitmap">
   <refnamediv>
    <refname>SWFBitmap</refname>
    <refpurpose>Loads Bitmap object</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>new</type><methodname>swfbitmap</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
      <methodparam choice="opt"><type>int</type><parameter>alphafilename</parameter></methodparam>
     </methodsynopsis>
    &warn.experimental.func;
    <para>
     <function>swfbitmap</function> creates a new SWFBitmap object from 
     the Jpeg or DBL file named <parameter>filename</parameter>. 
     <parameter>alphafilename</parameter> indicates a MSK file to
     be used as an alpha mask for a Jpeg image. 
    </para>
    <note>
     <para>
      We can only deal with baseline (frame 0) jpegs, no baseline optimized or 
      progressive scan jpegs! 
     </para>
    </note>
    <simpara>
     SWFBitmap has the following methods : <function>swfbitmap->getwidth</function>
     and <function>swfbitmap->getheight</function>.
    </simpara>
    <para>
     You can't import png images directly, though- have to use the png2dbl 
     utility to make a dbl ("define bits lossless") file from the png. 
     The reason for this is that I don't want a dependency on the png library 
     in ming- autoconf should solve this, but that's not set up yet. 
     <example>
      <title>Import PNG files</title>
      <programlisting role="php">
<![CDATA[
<?php
  $s = new SWFShape();
  $f = $s->addFill(new SWFBitmap("png.dbl"));
  $s->setRightFill($f);

  $s->drawLine(32, 0);
  $s->drawLine(0, 32);
  $s->drawLine(-32, 0);
  $s->drawLine(0, -32);

  $m = new SWFMovie();
  $m->setDimension(32, 32);
  $m->add($s);

  header('Content-type: application/x-shockwave-flash');
  $m->output();
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     And you can put an alpha mask on a jpeg fill.
     <example>
      <title><function>swfbitmap</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php

  $s = new SWFShape();

  // .msk file generated with "gif2mask" utility
  $f = $s->addFill(new SWFBitmap("alphafill.jpg", "alphafill.msk"));
  $s->setRightFill($f);

  $s->drawLine(640, 0);
  $s->drawLine(0, 480);
  $s->drawLine(-640, 0);
  $s->drawLine(0, -480);

  $c = new SWFShape();
  $c->setRightFill($c->addFill(0x99, 0x99, 0x99));
  $c->drawLine(40, 0);
  $c->drawLine(0, 40);
  $c->drawLine(-40, 0);
  $c->drawLine(0, -40);

  $m = new SWFMovie();
  $m->setDimension(640, 480);
  $m->setBackground(0xcc, 0xcc, 0xcc);

  // draw checkerboard background
  for($y=0; $y<480; $y+=40)
  {
    for($x=0; $x<640; $x+=80)
    {
      $i = $m->add($c);
      $i->moveTo($x, $y);
    }

    $y+=40;

    for($x=40; $x<640; $x+=80)
    {
      $i = $m->add($c);
      $i->moveTo($x, $y);
    }
  }

  $m->add($s);

  header('Content-type: application/x-shockwave-flash');
  $m->output();
?>
]]>
      </programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

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