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<div class="chlinkprevnexttop"> <a href="chap0_mj.html">[Top of Book]</a>   <a href="chap0_mj.html#contents">[Contents]</a>    <a href="chap6_mj.html">[Previous Chapter]</a>    <a href="chap8_mj.html">[Next Chapter]</a>   </div>

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<p><a id="X80EA9773809C0D61" name="X80EA9773809C0D61"></a></p>
<div class="ChapSects"><a href="chap7_mj.html#X80EA9773809C0D61">7 <span class="Heading">Francy Menus</span></a>
<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap7_mj.html#X7CC6903E78F24167">7.1 <span class="Heading">Categories</span></a>
</span>
<div class="ContSSBlock">
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X7D4F62FC7EE7D6CA">7.1-1 IsMenu</a></span>
</div></div>
<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap7_mj.html#X846063757EC05986">7.2 <span class="Heading">Families</span></a>
</span>
</div>
<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap7_mj.html#X7EABCC537D3BC549">7.3 <span class="Heading">Representations</span></a>
</span>
<div class="ContSSBlock">
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X78011B0D79E0AC29">7.3-1 IsMenuRep</a></span>
</div></div>
<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap7_mj.html#X7DE8E16C7C2D387B">7.4 <span class="Heading">Operations</span></a>
</span>
<div class="ContSSBlock">
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X80A4CF8778846969">7.4-1 Menu</a></span>
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X7EDDF1E97C71181B">7.4-2 Add</a></span>
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X874B7A668558AFB5">7.4-3 Remove</a></span>
</div></div>
<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap7_mj.html#X7C701DBF7BAE649A">7.5 <span class="Heading">Attributes</span></a>
</span>
<div class="ContSSBlock">
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X7BBE816B7B22D645">7.5-1 Title</a></span>
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X7BBE816B7B22D645">7.5-2 Title</a></span>
<span class="ContSS"><br /><span class="nocss">  </span><a href="chap7_mj.html#X792C89BE80A7DA6E">7.5-3 SetTitle</a></span>
</div></div>
</div>

<h3>7 <span class="Heading">Francy Menus</span></h3>

<p>Menus are lists of actions that are rendered on the GUI. Menus can have SubMenus, and are constituted by a label Title and an action defined as a <code class="code">Callback</code>.</p>

<p>Please see Francy-JS for client implementation.</p>

<p><a id="X7CC6903E78F24167" name="X7CC6903E78F24167"></a></p>

<h4>7.1 <span class="Heading">Categories</span></h4>

<p>In this section we show all Francy Menu Categories.</p>

<p><a id="X7D4F62FC7EE7D6CA" name="X7D4F62FC7EE7D6CA"></a></p>

<h5>7.1-1 IsMenu</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; IsMenu</code>( <var class="Arg">arg</var> )</td><td class="tdright">( filter )</td></tr></table></div>
<p>Returns: <code class="keyw">true</code> or <code class="keyw">false</code></p>

<p>Identifies <code class="code">Menu</code> objects.</p>

<p><a id="X846063757EC05986" name="X846063757EC05986"></a></p>

<h4>7.2 <span class="Heading">Families</span></h4>

<p>In this section we show all Francy Menu Families.</p>

<p><a id="X7EABCC537D3BC549" name="X7EABCC537D3BC549"></a></p>

<h4>7.3 <span class="Heading">Representations</span></h4>

<p>In this section we show all Francy Menu Representations.</p>

<p><a id="X78011B0D79E0AC29" name="X78011B0D79E0AC29"></a></p>

<h5>7.3-1 IsMenuRep</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; IsMenuRep</code>( <var class="Arg">arg</var> )</td><td class="tdright">( filter )</td></tr></table></div>
<p>Returns: <code class="keyw">true</code> or <code class="keyw">false</code></p>

<p>Checks whether an <code class="code">Object</code> has a <code class="code">Menu</code> internal representation.</p>

<p><a id="X7DE8E16C7C2D387B" name="X7DE8E16C7C2D387B"></a></p>

<h4>7.4 <span class="Heading">Operations</span></h4>

<p>In this section we show all Francy Menu Operations.</p>

<p><a id="X80A4CF8778846969" name="X80A4CF8778846969"></a></p>

<h5>7.4-1 Menu</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; Menu</code>( <var class="Arg">IsString(title)</var>[, <var class="Arg">IsCallback</var>] )</td><td class="tdright">( operation )</td></tr></table></div>
<p>Returns: <code class="code">Menu</code></p>

<p>Creates a Menu with a label title and an action <code class="code">Callback</code>. Is up to the client implementation to sort out the Menu and invoke the <code class="code">Callback</code>. Examples:</p>

<p>Create a <code class="code">FrancyMenu</code>:</p>


<div class="example"><pre>
<span class="GAPprompt">gap></span> <span class="GAPinput">canvas := Canvas("Callbacks in action");</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">SetHeight(canvas, 100);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">graph := Graph(GraphType.HASSE);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">shape := Shape(ShapeType.CIRCLE);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(graph, shape);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(canvas, graph);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">HelloWorld := function(name)</span>
<span class="GAPprompt">></span> <span class="GAPinput">    Add(canvas, FrancyMessage(Concatenation("Hello, ", name)));</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">    return Draw(canvas);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">end;</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">callback1 := Callback(HelloWorld);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">arg1 := RequiredArg(ArgType.STRING, "Your Name?");</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(callback1, arg1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">menu := Menu("Example Menu Holder");</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">menu1 := Menu("Hello Menu Action", callback1 );</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">menu2 := Menu("Hello Menu Action", callback1 );</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(menu, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Remove(menu, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(menu, [menu1, menu2]);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Remove(menu, [menu1, menu2]);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(canvas, [menu, menu1]);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Remove(canvas, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(canvas, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(shape, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Remove(shape, menu1);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Add(shape, [menu1, menu2]);</span>
<span class="GAPprompt">gap></span> <span class="GAPinput">Remove(shape, [menu1, menu2]);</span>
</pre></div>

<p><a id="X7EDDF1E97C71181B" name="X7EDDF1E97C71181B"></a></p>

<h5>7.4-2 Add</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; Add</code>( <var class="Arg">IsMenu</var>[, <var class="Arg">IsMenu</var>, <var class="Arg">List(IsMenu)</var>] )</td><td class="tdright">( operation )</td></tr></table></div>
<p>Returns: <code class="code">Menu</code></p>

<p>Add one <code class="code">Menu</code> to a specific <code class="code">Menu</code> creating a Submenu. Is up to the client implementation to handle this.</p>

<p><a id="X874B7A668558AFB5" name="X874B7A668558AFB5"></a></p>

<h5>7.4-3 Remove</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; Remove</code>( <var class="Arg">IsMenu</var>[, <var class="Arg">IsMenu</var>, <var class="Arg">List(IsMenu)</var>] )</td><td class="tdright">( operation )</td></tr></table></div>
<p>Returns: <code class="code">Menu</code></p>

<p>Remove a <code class="code">Menu</code> from a specific <code class="code">Menu</code>. Is up to the client implementation to handle this.</p>

<p><a id="X7C701DBF7BAE649A" name="X7C701DBF7BAE649A"></a></p>

<h4>7.5 <span class="Heading">Attributes</span></h4>

<p>In this section we show all Francy Core Attributes</p>

<p><a id="X7BBE816B7B22D645" name="X7BBE816B7B22D645"></a></p>

<h5>7.5-1 Title</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; Title</code>( <var class="Arg">arg</var> )</td><td class="tdright">( attribute )</td></tr></table></div>
<p>Returns: <code class="code">IsString</code> with the title of the object</p>

<p>A label title on a <code class="code">Menu</code> is used to identify what action it is about on a menu entry.</p>

<p><a id="X7BBE816B7B22D645" name="X7BBE816B7B22D645"></a></p>

<h5>7.5-2 Title</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; Title</code>( <var class="Arg">arg1</var> )</td><td class="tdright">( operation )</td></tr></table></div>
<p><a id="X792C89BE80A7DA6E" name="X792C89BE80A7DA6E"></a></p>

<h5>7.5-3 SetTitle</h5>

<div class="func"><table class="func" width="100%"><tr><td class="tdleft"><code class="func">&#an style='color: green'>8227; SetTitle</code>( <var class="Arg">IsMenu</var>, <var class="Arg">IsString</var> )</td><td class="tdright">( operation )</td></tr></table></div>
<p>Sets the title of the <code class="code">Menu</code>.</p>


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