gtkarrow.html

最新gtk中文资料集

<a name="id4210529"></a><h2>Description</h2>
<p>
GtkArrow should be used to draw simple arrows that need to point in
one of the four cardinal directions (up, down, left, or right).  The
style of the arrow can be one of shadow in, shadow out, etched in, or
etched out.  Note that these directions and style types may be
ammended in versions of Gtk to come.
</p>
<p>
GtkArrow will fill any space alloted to it, but since it is inherited
from <a class="link" href="GtkMisc.html" title="GtkMisc"><span class="type">GtkMisc</span></a>, it can be padded and/or aligned, to fill exactly the
space the programmer desires.
</p>
<p>
Arrows are created with a call to <a class="link" href="GtkArrow.html#gtk-arrow-new"><code class="function">gtk_arrow_new()</code></a>.  The direction or
style of an arrow can be changed after creation by using <a class="link" href="GtkArrow.html#gtk-arrow-set"><code class="function">gtk_arrow_set()</code></a>.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id4210598"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="id4210608"></a><h3>
<a name="GtkArrow-struct"></a>GtkArrow</h3>
<a class="indexterm" name="id4210621"></a><pre class="programlisting">typedef struct _GtkArrow GtkArrow;</pre>
<p>
The <a class="link" href="GtkArrow.html" title="GtkArrow"><span class="type">GtkArrow</span></a> struct containes the following fields.
(These fields should be considered read-only. They should never be set by
an application.)
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id4210648"></a><h3>
<a name="gtk-arrow-new"></a>gtk_arrow_new ()</h3>
<a class="indexterm" name="id4210661"></a><pre class="programlisting"><a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a>*          gtk_arrow_new                       (<a class="link" href="gtk-Standard-Enumerations.html#GtkArrowType">GtkArrowType</a> arrow_type,
                                                         <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType">GtkShadowType</a> shadow_type);</pre>
<p>
Creates a new arrow widget.
</p>
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<td><p><span class="term"><em class="parameter"><code>arrow_type</code></em>&#160;:</span></p></td>
<td>a valid <a class="link" href="gtk-Standard-Enumerations.html#GtkArrowType"><span class="type">GtkArrowType</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>shadow_type</code></em>&#160;:</span></p></td>
<td>a valid <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType"><span class="type">GtkShadowType</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td>the new <a class="link" href="GtkArrow.html" title="GtkArrow"><span class="type">GtkArrow</span></a> widget.


</td>
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<div class="refsect2" lang="en">
<a name="id4210765"></a><h3>
<a name="gtk-arrow-set"></a>gtk_arrow_set ()</h3>
<a class="indexterm" name="id4210778"></a><pre class="programlisting">void                gtk_arrow_set                       (<a class="link" href="GtkArrow.html" title="GtkArrow">GtkArrow</a> *arrow,
                                                         <a class="link" href="gtk-Standard-Enumerations.html#GtkArrowType">GtkArrowType</a> arrow_type,
                                                         <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType">GtkShadowType</a> shadow_type);</pre>
<p>
Sets the direction and style of the <a class="link" href="GtkArrow.html" title="GtkArrow"><span class="type">GtkArrow</span></a>, <em class="parameter"><code>arrow</code></em>.
</p>
<div class="variablelist"><table border="0">
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<td><p><span class="term"><em class="parameter"><code>arrow</code></em>&#160;:</span></p></td>
<td>a widget of type <a class="link" href="GtkArrow.html" title="GtkArrow"><span class="type">GtkArrow</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>arrow_type</code></em>&#160;:</span></p></td>
<td>a valid <a class="link" href="gtk-Standard-Enumerations.html#GtkArrowType"><span class="type">GtkArrowType</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>shadow_type</code></em>&#160;:</span></p></td>
<td>a valid <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType"><span class="type">GtkShadowType</span></a>.


</td>
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<div class="refsect1" lang="en">
<a name="id4210908"></a><h2>Property Details</h2>
<div class="refsect2" lang="en">
<a name="id4210919"></a><h3>
<a name="GtkArrow--arrow-type"></a>The <code class="literal">"arrow-type"</code> property</h3>
<a class="indexterm" name="id4210936"></a><pre class="programlisting">  "arrow-type"               <a class="link" href="gtk-Standard-Enumerations.html#GtkArrowType">GtkArrowType</a>          : Read / Write</pre>
<p>The direction the arrow should point.</p>
<p>Default value: GTK_ARROW_RIGHT</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id4210963"></a><h3>
<a name="GtkArrow--shadow-type"></a>The <code class="literal">"shadow-type"</code> property</h3>
<a class="indexterm" name="id4210979"></a><pre class="programlisting">  "shadow-type"              <a class="link" href="gtk-Standard-Enumerations.html#GtkShadowType">GtkShadowType</a>         : Read / Write</pre>
<p>Appearance of the shadow surrounding the arrow.</p>
<p>Default value: GTK_SHADOW_OUT</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id4211008"></a><h2>Style Property Details</h2>
<div class="refsect2" lang="en">
<a name="id4211019"></a><h3>
<a name="GtkArrow--arrow-scaling"></a>The <code class="literal">"arrow-scaling"</code> style property</h3>
<a class="indexterm" name="id4211036"></a><pre class="programlisting">  "arrow-scaling"            <a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"
>gfloat</a>                : Read</pre>
<p>Amount of space used up by arrow.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.7</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id4211067"></a><h2>See Also</h2>
<p>
</p>
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<td><p><span class="term"><a class="link" href="GtkStyle.html#gtk-paint-arrow"><code class="function">gtk_paint_arrow()</code></a></span></p></td>
<td><p>the function used internally to paint the arrow.</p></td>
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</table></div>
<p>
</p>
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<div class="refsect1" lang="en">
<a name="id4211100"></a><div class="refsect2" lang="en"><a name="id4211102"></a></div>
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<div class="refsect2" lang="en"><a name="id4211103"></a></div>
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