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<?xml version="1.0" encoding="utf-8"?>
<html>
  <head>
    <meta charset="UTF-8"/>
    <title>Plank.Surface &ndash; plank &ndash; Vala Binding Reference</title>
    <link href="devhelpstyle.css" rel="stylesheet" type="text/css"/><script src="scripts.js" type="text/javascript">
    </script>
  </head>
  <body>
    <div class="site_header">Plank.Surface &ndash; plank Reference Manual</div>
    <div class="site_body">
      <div class="site_content">
        <h1 class="main_title">Surface</h1>
        <hr class="main_hr"/>
        <h2 class="main_title">Object Hierarchy:</h2>
        <img class="main_diagram" usemap="#Plank.Surface" alt="Object hierarchy for Surface" src="img/Plank.Surface.png"/>

      <map id="Plank.Surface" name="Plank.Surface">
<area shape="rect" id="node1" href="Plank.Surface.html" title="Plank.Surface" alt="" coords="5,101,128,149"/>
</map>

        <h2 class="main_title">Description:</h2>
        <div class="main_code_definition"><span class="main_keyword">public</span> <span class="main_keyword">class</span> <b><span class="class">Surface</span></b> : <span class="main_type"><span class="class">Object</span></span>
        </div>
        <div class="description">
          <p>A surface is a wrapper class for a <span class="class">Cairo.Surface</span>. It encapsulates a surface/context and provides utility 
            methods.</p>
        </div><br/>
        <div class="namespace_note"><b>Namespace:</b> <a href="Plank.html">Plank</a>
        </div>
        <div class="package_note"><b>Package:</b> <a href="index.htm">plank</a>
        </div>
        <h2 class="main_title">Content:</h2>
        <h3 class="main_title">Properties:</h3>
        <ul class="navi_inline">
          <li class="property"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Surface</span></span> <b><a href="Plank.Surface.Internal.html" class="property">Internal</a></b> { <span class="main_keyword">construct</span>; <span class="main_keyword">get</span>; }
            </span>
            <div class="leaf_brief_description"><span class="brief_description">The internal <span class="class">Cairo.Surface</span> backing the 
                surface.</span>
            </div></li>
          <li class="property"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_basic_type"><span class="struct">int</span></span> <b><a href="Plank.Surface.Width.html" class="property">Width</a></b> { <span class="main_keyword">construct</span>; <span class="main_keyword">get</span>; }
            </span>
            <div class="leaf_brief_description"><span class="brief_description">The width of the surface.</span>
            </div></li>
          <li class="property"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_basic_type"><span class="struct">int</span></span> <b><a href="Plank.Surface.Height.html" class="property">Height</a></b> { <span class="main_keyword">construct</span>; <span class="main_keyword">get</span>; }
            </span>
            <div class="leaf_brief_description"><span class="brief_description">The height of the surface.</span>
            </div></li>
          <li class="property"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Context</span></span> <b><a href="Plank.Surface.Context.html" class="property">Context</a></b> { <span class="main_keyword">construct</span>; <span class="main_keyword">get</span>; }
            </span>
            <div class="leaf_brief_description"><span class="brief_description">A <span class="class">Cairo.Context</span> for the surface.</span>
            </div></li>
        </ul>
        <h3 class="main_title">Creation methods:</h3>
        <ul class="navi_inline">
          <li class="creation_method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <b><a href="Plank.Surface.Surface.html" class="creation_method">Surface</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> width, <span class="main_basic_type"><span class="struct">int</span></span> height)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Creates a new surface.</span>
            </div></li>
          <li class="creation_method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <b><a href="Plank.Surface.Surface.with_cairo_surface.html" class="creation_method">Surface.with_cairo_surface</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> width, <span class="main_basic_type"><span class="struct">int</span></span> height, <span class="main_type"><span class="class">Surface</span></span> model)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Creates a new surface compatible with an existing <span class="class">
                  Cairo.Surface</span>.</span>
            </div></li>
          <li class="creation_method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <b><a href="Plank.Surface.Surface.with_surface.html" class="creation_method">Surface.with_surface</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> width, <span class="main_basic_type"><span class="struct">int</span></span> height, <span class="main_type"><span class="class">Surface</span></span> model)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Creates a new surface compatible with an existing 
                <a href="Plank.Surface.Surface.html" class="creation_method">Surface</a>.</span>
            </div></li>
          <li class="creation_method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <b><a href="Plank.Surface.Surface.with_internal.html" class="creation_method">Surface.with_internal</a></b> (<span class="main_type"><span class="class">ImageSurface</span></span> image)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Creates a new surface with the given <span class="class">
                  Cairo.ImageSurface</span> as Internal.</span>
            </div></li>
        </ul>
        <h3 class="main_title">Methods:</h3>
        <ul class="navi_inline">
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_keyword">void</span> <b><a href="Plank.Surface.clear.html" class="method">clear</a></b> ()
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Clears the entire surface.</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Surface</span></span> <b><a href="Plank.Surface.copy.html" class="method">copy</a></b> ()
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Create a copy of the surface</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Surface</span></span> <b><a href="Plank.Surface.scaled_copy.html" class="method">scaled_copy</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> width, <span class="main_basic_type"><span class="struct">int</span></span> height)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Create a scaled copy of the surface</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Pixbuf</span></span> <b><a href="Plank.Surface.to_pixbuf.html" class="method">to_pixbuf</a></b> ()
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Saves the current surface to a <span class="class">Gdk.Pixbuf</span>.
              </span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><span class="class">Surface</span></span> <b><a href="Plank.Surface.create_mask.html" class="method">create_mask</a></b> (<span class="main_basic_type"><span class="struct">double</span></span> threshold, <span class="main_keyword">out</span> <span class="main_type"><span class="struct">Rectangle</span></span> extent)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Computes the mask of the surface.</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_type"><a href="Plank.Color.html" class="struct">Color</a></span> <b><a href="Plank.Surface.average_color.html" class="method">average_color</a></b> ()
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Computes and returns the average color of the surface.</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_keyword">void</span> <b><a href="Plank.Surface.fast_blur.html" class="method">fast_blur</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> radius, <span class="main_basic_type"><span class="struct">int</span></span> process_count = <span class="main_literal">1</span>)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Performs a fast blur on the surface.</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_keyword">void</span> <b><a href="Plank.Surface.exponential_blur.html" class="method">exponential_blur</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> radius)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Performs an exponential blur on the surface.</span>
            </div></li>
          <li class="method"><span class="leaf_code_definition"><span class="main_keyword">public</span> <span class="main_keyword">void</span> <b><a href="Plank.Surface.gaussian_blur.html" class="method">gaussian_blur</a></b> (<span class="main_basic_type"><span class="struct">int</span></span> radius)
            </span>
            <div class="leaf_brief_description"><span class="brief_description">Performs a gaussian blur on the surface. <b>Note: This method is 
                  wickedly slow</b></span>
            </div></li>
        </ul>
        <h3 class="main_title">Inherited Members:</h3>
        <div class="box">
          <div class="headline" onclick="toggle_box (this, 'box-content-22')">All known members inherited from class GLib.Object</div>
          <div class="content" id="box-content-22">
            <div class="column">
              <ul class="navi_inline">
                <li class="static_method">@new</li>
                <li class="static_method">new_valist</li>
                <li class="static_method">newv</li>
                <li class="method">add_toggle_ref</li>
                <li class="method">add_weak_pointer</li>
                <li class="method">bind_property</li>
                <li class="method">connect</li>
                <li class="virtual_method">constructed</li>
                <li class="method">disconnect</li>
                <li class="virtual_method">dispose</li>
                <li class="method">dup_data</li>
                <li class="method">dup_qdata</li>
                <li class="method">freeze_notify</li>
                <li class="method">@get</li>
              </ul>
            </div>
            <div class="column">
              <ul class="navi_inline">
                <li class="method">get_class</li>
                <li class="method">get_data</li>
                <li class="method">get_property</li>
                <li class="method">get_qdata</li>
                <li class="method">get_type</li>
                <li class="method">notify_property</li>
                <li class="method">@ref</li>
                <li class="method">ref_sink</li>
                <li class="method">replace_data</li>
                <li class="method">replace_qdata</li>
                <li class="method">remove_toggle_ref</li>
                <li class="method">remove_weak_pointer</li>
                <li class="method">@set</li>
                <li class="method">set_data</li>
              </ul>
            </div>
            <div class="column">
              <ul class="navi_inline">
                <li class="method">set_data_full</li>
                <li class="method">set_property</li>
                <li class="method">set_qdata</li>
                <li class="method">set_qdata_full</li>
                <li class="method">steal_data</li>
                <li class="method">steal_qdata</li>
                <li class="method">thaw_notify</li>
                <li class="method">unref</li>
                <li class="method">watch_closure</li>
                <li class="method">weak_ref</li>
                <li class="method">weak_unref</li>
                <li class="signal">notify</li>
                <li class="field">ref_count</li>
              </ul>
            </div>
          </div>
        </div>
      </div>
    </div><br/>
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