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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<a name="GooCanvasPathModel"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle"><a name="GooCanvasPathModel.top_of_page"></a>GooCanvasPathModel</span></h2>
<p>GooCanvasPathModel — a model for path items (a series of lines and curves).</p>
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<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="GooCanvasPathModel.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">struct              <a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel-struct" title="struct GooCanvasPathModel">GooCanvasPathModel</a>;
<a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="returnvalue">GooCanvasItemModel</span></a> * <a class="link" href="GooCanvasPathModel.html#goo-canvas-path-model-new" title="goo_canvas_path_model_new ()">goo_canvas_path_model_new</a>          (<em class="parameter"><code><a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="type">GooCanvasItemModel</span></a> *parent</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *path_data</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  GObject
   +----<a class="link" href="GooCanvasItemModelSimple.html" title="GooCanvasItemModelSimple">GooCanvasItemModelSimple</a>
         +----GooCanvasPathModel
</pre>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GooCanvasPathModel implements
 <a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel">GooCanvasItemModel</a>.</p>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel--data" title='The "data" property'>data</a>"                     <span class="type">gchar</span>*                : Write
  "<a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel--height" title='The "height" property'>height</a>"                   <span class="type">gdouble</span>               : Read / Write
  "<a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel--width" title='The "width" property'>width</a>"                    <span class="type">gdouble</span>               : Read / Write
  "<a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel--x" title='The "x" property'>x</a>"                        <span class="type">gdouble</span>               : Read / Write
  "<a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel--y" title='The "y" property'>y</a>"                        <span class="type">gdouble</span>               : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.description"></a><h2>Description</h2>
<p>
GooCanvasPathModel represents a model for path items, which are a series of
one or more lines, bezier curves, or elliptical arcs.
</p>
<p>
It is a subclass of <a class="link" href="GooCanvasItemModelSimple.html" title="GooCanvasItemModelSimple"><span class="type">GooCanvasItemModelSimple</span></a> and so inherits all of the
style properties such as "stroke-color", "fill-color" and "line-width".
</p>
<p>
It also implements the <a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="type">GooCanvasItemModel</span></a> interface, so you can use the
<a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="type">GooCanvasItemModel</span></a> functions such as <a class="link" href="GooCanvasItemModel.html#goo-canvas-item-model-raise" title="goo_canvas_item_model_raise ()"><code class="function">goo_canvas_item_model_raise()</code></a> and
<a class="link" href="GooCanvasItemModel.html#goo-canvas-item-model-rotate" title="goo_canvas_item_model_rotate ()"><code class="function">goo_canvas_item_model_rotate()</code></a>.
</p>
<p>
<a class="link" href="GooCanvasPathModel.html" title="GooCanvasPathModel"><span class="type">GooCanvasPathModel</span></a> uses the same path specification strings as the Scalable
Vector Graphics (SVG) path element. For details see the
<a class="ulink" href="http://www.w3.org/Graphics/SVG/" target="_top">SVG specification</a>.
</p>
<p>
To create a <a class="link" href="GooCanvasPathModel.html" title="GooCanvasPathModel"><span class="type">GooCanvasPathModel</span></a> use <a class="link" href="GooCanvasPathModel.html#goo-canvas-path-model-new" title="goo_canvas_path_model_new ()"><code class="function">goo_canvas_path_model_new()</code></a>.
</p>
<p>
To get or set the properties of an existing <a class="link" href="GooCanvasPathModel.html" title="GooCanvasPathModel"><span class="type">GooCanvasPathModel</span></a>, use
<code class="function">g_object_get()</code> and <code class="function">g_object_set()</code>.
</p>
<p>
To respond to events such as mouse clicks on the path you must connect
to the signal handlers of the corresponding <a class="link" href="GooCanvasPath.html" title="GooCanvasPath"><span class="type">GooCanvasPath</span></a> objects.
(See <a class="link" href="GooCanvas.html#goo-canvas-get-item" title="goo_canvas_get_item ()"><code class="function">goo_canvas_get_item()</code></a> and <a class="link" href="GooCanvas.html#GooCanvas-item-created" title='The "item-created" signal'><span class="type">"item-created"</span></a>.)
</p>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GooCanvasPathModel-struct"></a><h3>struct GooCanvasPathModel</h3>
<pre class="programlisting">struct GooCanvasPathModel;</pre>
<p>
The <a class="link" href="GooCanvasPathModel.html#GooCanvasPathModel-struct" title="struct GooCanvasPathModel"><span class="type">GooCanvasPathModel</span></a> struct contains private data only.
</p>
</div>
<hr>
<div class="refsect2">
<a name="goo-canvas-path-model-new"></a><h3>goo_canvas_path_model_new ()</h3>
<pre class="programlisting"><a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="returnvalue">GooCanvasItemModel</span></a> * goo_canvas_path_model_new          (<em class="parameter"><code><a class="link" href="GooCanvasItemModel.html" title="GooCanvasItemModel"><span class="type">GooCanvasItemModel</span></a> *parent</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *path_data</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
Creates a new path model.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>parent</code></em> :</span></p></td>
<td>the parent model, or <code class="literal">NULL</code>. If a parent is specified, it will
assume ownership of the item, and the item will automatically be freed when
it is removed from the parent. Otherwise call <code class="function">g_object_unref()</code> to free it. <span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path_data</code></em> :</span></p></td>
<td>the sequence of path commands, specified as a string using the
same syntax as in the <a class="ulink" href="http://www.w3.org/Graphics/SVG/" target="_top">Scalable
Vector Graphics (SVG)</a> path element.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>optional pairs of property names and values, and a terminating <code class="literal">NULL</code>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new path model. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p>
Here's an example showing how to create a red line from (20,20) to (40,40):
</p>
<p>
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="usertype">GooCanvasItemModel</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">path </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GooCanvasPathModel.html#goo-canvas-path-model-new">goo_canvas_path_model_new</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">mygroup</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"M 20 20 L 40 40"</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"stroke-color"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"red"</span><span class="symbol">,</span>
<span class="normal">                                                      NULL</span><span class="symbol">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<p>
This example creates a cubic bezier curve from (20,100) to (100,100) with
the control points at (20,50) and (100,50):
</p>
<p>
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="usertype">GooCanvasItemModel</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">path </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GooCanvasPathModel.html#goo-canvas-path-model-new">goo_canvas_path_model_new</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">mygroup</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"M20,100 C20,50 100,50 100,100"</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"stroke-color"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"blue"</span><span class="symbol">,</span>
<span class="normal">                                                      NULL</span><span class="symbol">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<p>
This example uses an elliptical arc to create a filled circle with one
quarter missing:
</p>
<p>
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5
6</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="usertype">GooCanvasItemModel</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">path </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GooCanvasPathModel.html#goo-canvas-path-model-new">goo_canvas_path_model_new</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">mygroup</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"M200,500 h-150 a150,150 0 1,0 150,-150 z"</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"fill-color"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"red"</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"stroke-color"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"blue"</span><span class="symbol">,</span>
<span class="normal">                                                      </span><span class="string">"line-width"</span><span class="symbol">,</span><span class="normal"> </span><span class="number">5.0</span><span class="symbol">,</span>
<span class="normal">                                                      NULL</span><span class="symbol">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="GooCanvasPathModel.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GooCanvasPathModel--data"></a><h3>The <code class="literal">"data"</code> property</h3>
<pre class="programlisting">  "data"                     <span class="type">gchar</span>*                : Write</pre>
<p>The sequence of path commands.</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GooCanvasPathModel--height"></a><h3>The <code class="literal">"height"</code> property</h3>
<pre class="programlisting">  "height"                   <span class="type">gdouble</span>               : Read / Write</pre>
<p>The height of the path.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GooCanvasPathModel--width"></a><h3>The <code class="literal">"width"</code> property</h3>
<pre class="programlisting">  "width"                    <span class="type">gdouble</span>               : Read / Write</pre>
<p>The width of the path.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GooCanvasPathModel--x"></a><h3>The <code class="literal">"x"</code> property</h3>
<pre class="programlisting">  "x"                        <span class="type">gdouble</span>               : Read / Write</pre>
<p>The x coordinate of the path.</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GooCanvasPathModel--y"></a><h3>The <code class="literal">"y"</code> property</h3>
<pre class="programlisting">  "y"                        <span class="type">gdouble</span>               : Read / Write</pre>
<p>The y coordinate of the path.</p>
<p>Default value: 0</p>
</div>
</div>
</div>
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