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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!-- Generated by Doxygen 1.3.8 -->
<h1>GFC::Gtk::ProgressBar Class Reference</h1>A GtkProgressBar C++ wrapper class.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="progressbar_8hh-source.html">gfc/gtk/progressbar.hh</a>&gt;</code>
<p>
<p>Inheritance diagram for GFC::Gtk::ProgressBar:
<p><center><img src="classGFC_1_1Gtk_1_1ProgressBar.png" usemap="#GFC::Gtk::ProgressBar_map" border="0" alt=""></center>
<map name="GFC::Gtk::ProgressBar_map">
<area href="classGFC_1_1Gtk_1_1Widget.html" alt="GFC::Gtk::Widget" shape="rect" coords="74,224,213,248">
<area href="classGFC_1_1Gtk_1_1Object.html" alt="GFC::Gtk::Object" shape="rect" coords="0,168,139,192">
<area href="classGFC_1_1Atk_1_1Implementor.html" alt="GFC::Atk::Implementor" shape="rect" coords="149,168,288,192">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Object.html" alt="GFC::G::Object" shape="rect" coords="0,112,139,136">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1TypeInterface.html" alt="GFC::G::TypeInterface" shape="rect" coords="149,112,288,136">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1TypeInstance.html" alt="GFC::G::TypeInstance" shape="rect" coords="0,56,139,80">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1TypeInstance.html" alt="GFC::G::TypeInstance" shape="rect" coords="149,56,288,80">
<area doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html" alt="GFC::Trackable" shape="rect" coords="0,0,139,24">
<area doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html" alt="GFC::Trackable" shape="rect" coords="149,0,288,24">
</map>
<a href="classGFC_1_1Gtk_1_1ProgressBar-members.html">List of all members.</a><h2>Public Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="anchor" name="z702_0" doxytag="GFC::Gtk::ProgressBar::ProgressBar" ></a>
<a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z702_0">ProgressBar</a> ()
<dl class="el"><dd class="mdescRight">Construct a new progress bar. <br></dl><li><a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z702_1">ProgressBar</a> (<a class="el" href="namespaceGFC_1_1Gtk.html#a357">ProgressBarOrientation</a> orientation)
<dl class="el"><dd class="mdescRight">Construct a new progress bar with the specified orientation.  <a href="#z702_1"></a><br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Accessors</div></td></tr>
<ul>
<li><a class="anchor" name="z703_0" doxytag="GFC::Gtk::ProgressBar::gtk_progress_bar" ></a>
GtkProgressBar * <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z703_0">gtk_progress_bar</a> () const
<dl class="el"><dd class="mdescRight">Get a pointer to the GtkProgressBar structure. <br></dl><li><a class="anchor" name="z703_1" doxytag="GFC::Gtk::ProgressBar::operator GtkProgressBar *" ></a>
<a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z703_1">operator GtkProgressBar *</a> () const
<dl class="el"><dd class="mdescRight">Conversion operator; safely converts a <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> to a GtkProgressBar pointer. <br></dl><li>double <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z703_3">get_fraction</a> () const
<dl class="el"><dd class="mdescRight">Returns the current fraction of the task that's been completed.  <a href="#z703_3"></a><br></dl><li>double <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z703_4">get_pulse_step</a> () const
<dl class="el"><dd class="mdescRight">Retrieves the pulse step set with <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_4">set_pulse_step()</a>.  <a href="#z703_4"></a><br></dl><li><a class="anchor" name="z703_5" doxytag="GFC::Gtk::ProgressBar::get_orientation" ></a>
<a class="el" href="namespaceGFC_1_1Gtk.html#a357">ProgressBarOrientation</a> <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z703_5">get_orientation</a> () const
<dl class="el"><dd class="mdescRight">Retrieves the current progress bar orientation. <br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Methods</div></td></tr>
<ul>
<li>void <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_0">pulse</a> ()
<dl class="el"><dd class="mdescRight">Indicates that some progress is made, but you don't know how much.  <a href="#z704_0"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_2">set_text</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &amp;text)
<dl class="el"><dd class="mdescRight">Causes the given text to appear superimposed on the progress bar.  <a href="#z704_2"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_3">set_fraction</a> (double fraction)
<dl class="el"><dd class="mdescRight">Causes the progress bar to "fill in" the given fraction of the bar.  <a href="#z704_3"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_4">set_pulse_step</a> (double fraction)
<dl class="el"><dd class="mdescRight">Sets the fraction of total progress bar length to move the bouncing block for each call to <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_0">pulse()</a>.  <a href="#z704_4"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_5">set_orientation</a> (<a class="el" href="namespaceGFC_1_1Gtk.html#a357">ProgressBarOrientation</a> orientation)
<dl class="el"><dd class="mdescRight">Causes the progress bar to switch to a different orientation (left-to-right, right-to-left, top-to-bottom, or bottom-to-top).  <a href="#z704_5"></a><br></dl></ul>
<h2>Protected Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z701_0">ProgressBar</a> (GtkProgressBar *progress_bar, bool <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html#z143_1">owns_reference</a>=false)
<dl class="el"><dd class="mdescRight">Construct a new <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> from an existing GtkProgressBar.  <a href="#z701_0"></a><br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A GtkProgressBar C++ wrapper class. 
<p>
The <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> is typically used to display the progress of a long running operation. It provides a visual clue that processing is underway. The <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> can be used in two different modes: percentage mode and activity mode.<p>
When an application can determine how much work needs to take place (e.g. read a fixed number of bytes from a file) and can monitor its progress, it can use the <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> in percentage mode and the user sees a growing bar indicating the percentage of the work that has been completed. In this mode, the application is required to call <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_3">set_fraction()</a> periodically to update the progress bar.<p>
When an application has no accurate way of knowing the amount of work to do, it can use the <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> in activity mode, which shows activity by a block moving back and forth within the progress area. In this mode, the application is required to call <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_0">pulse()</a> perodically to update the progress bar.<p>
There is quite a bit of flexibility provided to control the appearance of the <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a>. Functions are provided to control the orientation of the bar, optional text can be displayed along with the bar, and the step size used in activity mode can be set. 
<p>
<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="z701_0" doxytag="GFC::Gtk::ProgressBar::ProgressBar" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> GFC::Gtk::ProgressBar::ProgressBar           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GtkProgressBar *&nbsp;</td>
          <td class="mdname" nowrap> <em>progress_bar</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>bool&nbsp;</td>
          <td class="mdname" nowrap> <em>owns_reference</em> = <code>false</code></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [explicit, protected]</code></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Construct a new <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html">ProgressBar</a> from an existing GtkProgressBar. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>progress_bar</em>&nbsp;</td><td>A pointer to a GtkProgressBar. </td></tr>
    <tr><td></td><td valign=top><em>owns_reference</em>&nbsp;</td><td>Set false if the initial reference count is floating, set true if it's not.</td></tr>
  </table>
</dl>
<br>
The <em>progress_bar</em> can be a newly created GtkProgressBar or an existing GtkProgressBar (see <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Object.html#z68_0">G::Object::Object</a>).     </td>
  </tr>
</table>
<a class="anchor" name="z702_1" doxytag="GFC::Gtk::ProgressBar::ProgressBar" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> GFC::Gtk::ProgressBar::ProgressBar           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="namespaceGFC_1_1Gtk.html#a357">ProgressBarOrientation</a>&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>orientation</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [explicit]</code></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Construct a new progress bar with the specified orientation. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>orientation</em>&nbsp;</td><td>The orientation of the progress bar. </td></tr>
  </table>
</dl>
    </td>
  </tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="z703_3" doxytag="GFC::Gtk::ProgressBar::get_fraction" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> double GFC::Gtk::ProgressBar::get_fraction           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const</td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Returns the current fraction of the task that's been completed. 
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A fraction from 0.0 to 1.0. </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="z703_4" doxytag="GFC::Gtk::ProgressBar::get_pulse_step" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> double GFC::Gtk::ProgressBar::get_pulse_step           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const</td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Retrieves the pulse step set with <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_4">set_pulse_step()</a>. 
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A fraction from 0.0 to 1.0. </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="z704_0" doxytag="GFC::Gtk::ProgressBar::pulse" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
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      <table cellpadding="0" cellspacing="0" border="0">
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          <td class="md" nowrap valign="top"> void GFC::Gtk::ProgressBar::pulse           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Indicates that some progress is made, but you don't know how much. 
<p>
Causes the progress bar to enter "activity mode", where a block bounces back and forth. Each call to <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_0">pulse()</a> causes the block to move by a little bit (the amount of movement per pulse is determined by <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_4">set_pulse_step()</a>).     </td>
  </tr>
</table>
<a class="anchor" name="z704_3" doxytag="GFC::Gtk::ProgressBar::set_fraction" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> void GFC::Gtk::ProgressBar::set_fraction           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>fraction</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Causes the progress bar to "fill in" the given fraction of the bar. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>fraction</em>&nbsp;</td><td>The fraction of the task that's been completed.</td></tr>
  </table>
</dl>
<br>
The fraction should be between 0.0 and 1.0, inclusive.     </td>
  </tr>
</table>
<a class="anchor" name="z704_5" doxytag="GFC::Gtk::ProgressBar::set_orientation" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> void GFC::Gtk::ProgressBar::set_orientation           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="namespaceGFC_1_1Gtk.html#a357">ProgressBarOrientation</a>&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>orientation</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
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  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Causes the progress bar to switch to a different orientation (left-to-right, right-to-left, top-to-bottom, or bottom-to-top). 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>orientation</em>&nbsp;</td><td>The orientation of the progress bar. </td></tr>
  </table>
</dl>
    </td>
  </tr>
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<a class="anchor" name="z704_4" doxytag="GFC::Gtk::ProgressBar::set_pulse_step" ></a><p>
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  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void GFC::Gtk::ProgressBar::set_pulse_step           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>fraction</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
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      &nbsp;
    </td>
    <td>

<p>
Sets the fraction of total progress bar length to move the bouncing block for each call to <a class="el" href="classGFC_1_1Gtk_1_1ProgressBar.html#z704_0">pulse()</a>. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>fraction</em>&nbsp;</td><td>The fraction between 0.0 and 1.0. </td></tr>
  </table>
</dl>
    </td>
  </tr>
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<a class="anchor" name="z704_2" doxytag="GFC::Gtk::ProgressBar::set_text" ></a><p>
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      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void GFC::Gtk::ProgressBar::set_text           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>text</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
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    </td>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Causes the given text to appear superimposed on the progress bar. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>text</em>&nbsp;</td><td>A text string. </td></tr>
  </table>
</dl>
    </td>
  </tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="progressbar_8hh-source.html">progressbar.hh</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Aug 24 00:34:41 2004 for GFC-UI by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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