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<div class=WordSection1>
<h1><a name="_Toc179099521"><span lang=EN-GB>Providing </span></a><span
lang=EN-GB>Context Buttons</span></h1>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Context buttons allow
adding actions as small, automatically appearing icons for each pictogram
element in the diagram.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>They are shown along
the borders of a pictogram element when the mouse is positioned on that
pictogram element. They are hidden again when the mouse is positioned outside
the area built by the pictogram element and the context buttons.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Context buttons can
provide the same functionality as a <a href="context-menu.htm">context menu</a>,
but in a nicer and quicker way: the context buttons are shown immediately.
Another advantage of context buttons over context menus is, that each context
button can have several drag and drop features, which get activated when the
user drags from a context button and drops onto the canvas or another object.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<h2><span lang=EN-GB>Enhancing the Tool Behavior Provider</span></h2>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Context buttons are
defined in the tool behavior provider.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>If you didn’t do so
already you must <b>first create a tool behavior provider and add it to the
diagram type provider as described <a href="tool-behavior-provider.htm">here</a>.</b></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>There is one method of
the tool behavior provider to overwrite: </span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>The method <a
href="../../../javadoc/org/eclipse/graphiti/tb/IToolBehaviorProvider.html#getContextButtonPad(org.eclipse.graphiti.features.context.IPictogramElementContext)">getContextButtonPad</a>
has to return the context buttons for the given context (which implement <a
href="../../../javadoc/org/eclipse/graphiti/tb/IContextButtonEntry.html">IContextButtonEntry</a>).
</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>There are different
groups of context buttons:</span></p>
<ul style='margin-top:0cm' type=disc>
<li class=MsoNormal style='color:black'><span lang=EN-GB>Generic context
buttons: their look and behaviour is standardized for all tools (e.g.
“delete”, “remove” and “update”). They are shown at the top of the
pictogram element in a predefined order. A specific tool can only choose
which of the generic context buttons to switch on/off.</span></li>
<li class=MsoNormal style='color:black'><span lang=EN-GB>Domain specific
context buttons: they are specific for each tool (e.g. “create sub-class”
in a class editor). They are shown at the right (and if necessary also
bottom) of the pictogram element. A specific tool must define the look and
behaviour for all domain specific context buttons. </span></li>
<li class=MsoNormal style='color:black'><span lang=EN-GB>Collapse context
button: the look and position for the collapse context button is
standardized for all tools. A specific tool must define the behavior of
the collapse context button by defining the feature to call (see <a
href="../../../javadoc/org/eclipse/graphiti/tb/ContextEntryHelper.html#createCollapseContextButton(boolean, org.eclipse.graphiti.features.IFeature, org.eclipse.graphiti.features.context.IContext)">createCollapseContextButton</a>).</span></li>
</ul>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>The following
restrictions are defined by usability engineers of SAP AG (but currently not
checked technically): there can be 0-3 generic context buttons, 0-5 domain specific
context buttons and 0-1 collapse context button.</span></p>
<p class=MsoNormal><span lang=EN-US>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>The functionality of
context buttons is always provided by features. </span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Each context button can
have one click-feature, which is executed when clicking the context-button,
and/or several drag &amp; drop features, which are executed when the user
starts dragging a connection from the context button. If several drag &amp;
drop features are available, a context-menu will be offered to the user when he
drops the connection, and he can choose the feature to execute.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>In this example we want
to create one context button, which offers all available <a
href="create-connection-feature.htm">create connection features</a> as drag
&amp; drop features, but has no click-feature. </span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span style='color:black'><img border=0 width=353
height=120 src="visio/context-buttons-click.gif"></span><span lang=EN-GB
style='color:black'>&nbsp; </span></p>
<p class=MsoCaption><span lang=EN-GB>Figure: A context button, which the user
can click or start drag&amp;drop from it</span></p>
<p class=MsoNormal><span style='color:black'><img border=0 width=353
height=102 src="visio/context-buttons-drag.gif"></span></p>
<p class=MsoCaption><span lang=EN-GB>Figure: The user started dragging from the
context button</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>You can see the
complete implementation of the context button here:</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;&nbsp;</span></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=680
style='width:18.0cm;border-collapse:collapse'>
<tr>
<td width=680 valign=top style='width:18.0cm;border:solid windowtext 1.0pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> IContextButtonPadData
getContextButtonPad(</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
IPictogramElementContext context) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
IContextButtonPadData data = </span><b><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:#7F0055'>super</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>.getContextButtonPad(context);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
PictogramElement pe = context.getPictogramElement();</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 1. set the generic context buttons</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// note, that we do not add 'remove' (just as an example)</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;setGenericContextButtons(data, pe, </span><i><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#0000C0'>CONTEXT_BUTTON_DELETE</span></i><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> | </span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><i><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#0000C0'>CONTEXT_BUTTON_UPDATE</span></i><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 2. set the collapse button </span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// simply use a dummy custom feature (senseless example)</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
CustomContext cc = </span><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>new</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>
CustomContext(</span><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";color:#7F0055'>new</span></b><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:black'> PictogramElement[] { pe });</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ICustomFeature[] cf = getFeatureProvider().getCustomFeatures(cc);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>for</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> (</span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>int</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> i
= 0; i &lt; cf.</span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";color:#0000C0'>length</span><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:black'>; i++) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ICustomFeature iCustomFeature = cf[i];</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (iCustomFeature </span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>instanceof</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> TutorialCollapseDummyFeature)
{</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
IContextButtonEntry collapseButton = ContextEntryHelper.<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<i>createCollapseContextButton</i>(</span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>true</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>,
iCustomFeature, cc);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
data.setCollapseContextButton(collapseButton);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>break</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>;</span><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span style='color:black'>}</span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 3. add one domain specific context-button, which offers all
</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// available connection-features as drag&amp;drop features...</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 3.a. create new CreateConnectionContext</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
CreateConnectionContext ccc = </span><b><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:#7F0055'>new</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
CreateConnectionContext();</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ccc.setSourcePictogramElement(pe);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Anchor anchor = </span><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>null</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (pe </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>instanceof</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
Anchor) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
anchor = (Anchor) pe;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
} </span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>else</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>if</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
(pe </span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>instanceof</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> AnchorContainer) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// assume, that our shapes always have <u>chopbox</u> anchors</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=FR style='font-size:10.0pt;font-family:"Courier New";
color:black'>anchor = Graphiti.getPeService()<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
.<i>getChopboxAnchor</i>((AnchorContainer) pe);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=FR
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:black'>}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ccc.setSourceAnchor(anchor);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 3.b. create context button and add all applicable features</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ContextButtonEntry button = </span><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>new</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>
ContextButtonEntry(</span><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>null</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>, context);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
button.setText(</span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";color:#2A00FF'>&quot;Create connection&quot;</span><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
button.setIconId(MyTutorialImageProvider.</span><i><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#0000C0'>IMG_EREFERENCE</span></i><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ICreateConnectionFeature[] features =</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
getFeatureProvider().getCreateConnectionFeatures();</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>for</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (ICreateConnectionFeature feature :
features) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (feature.isAvailable(ccc) &amp;&amp;
feature.canStartConnection(ccc))</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;button.addDragAndDropFeature(feature);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#3F7F5F'>// 3.c. add context button, if it contains at least one
feature</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>
(button.getDragAndDropFeatures().size() &gt; 0) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp; data.getDomainSpecificContextButtons().add(button);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>}</span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp; </span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>return</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> data;</span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp; }</span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>&nbsp;</span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>The implementation of <i>MyTutorialImageProvider</i>
can be found <a href="images.htm">here</a>.&nbsp;The implementation of the <i>TutorialCollapseDummyFeature</i>
can be found at <a href="#_Implementation_of_the">the end of this page</a>.</span></p>
<p class=MsoNormal><span lang=EN-US>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-US>The context button entries contain
information about icon, display text and tooltip description.</span></p>
<p class=MsoNormal><span lang=EN-US>The positioning of the context buttons can
be influenced by changing the rectangle around which the context buttons are
placed (see <a
href="../../../javadoc/org/eclipse/graphiti/tb/IContextButtonPadData.html#getPadLocation()">getPadLocation</a>).
By default the selection area is used (see <a href="selection-behavior.htm">selection
behavior</a>) if defined, or otherwise the bounds of the pictogram elements
main graphics algorithm are used.</span></p>
<p class=MsoNormal><span lang=EN-US style='color:black'>&nbsp;</span></p>
<h2><span lang=EN-GB>Test: Create a Connection by Drag&amp;Drop from a Context
Button</span></h2>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Note that previously we
implemented one <a href="create-connection-feature.htm">create connection
feature</a> which allows creating an association between two EClasses.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Now start the editor
and test this new context button:</span></p>
<ol style='margin-top:0cm' start=1 type=1>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>Create
or open a&nbsp;diagram and create two EClasses in the diagram.</span></li>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>Position
the mouse on top of the first EClass and the context button should appear
in the south-east of the shape.</span></li>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>Start
dragging with the mouse from the context-button.</span></li>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>Drop
the connection onto the second EClass, which will result in one of the
following possibilities:</span></li>
</ol>
<ol style='margin-top:0cm' start=1 type=1>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>If
only one create connection feature for the EClass exists, then the association
will be created immediately.</span></li>
<li class=MsoNormal style='color:black;text-align:justify'><span lang=EN-GB>If
several create connection features for the EClass exist, then a
context-menu will be shown to the user, where he can choose the feature to
execute. Tip: if you have only one create connection feature you can try this
behaviour by simply duplicating the line </span><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'>”button.addDragAndDropFeature(feature);”</span><span
lang=EN-GB>.</span></li>
</ol>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Note, that our
implementation of the create connection feature does not allow a connection, if
the source and target business object are identical. If you have two different
shapes associated with the same business object (e.g. via copy &amp; paste),
then creating a connection between them is not possible.</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<h2><a name="_Implementation_of_the"></a><span lang=EN-GB>Implementation of the
TutorialCollapseDummyFeature</span></h2>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=680
style='width:18.0cm;border-collapse:collapse'>
<tr>
<td width=680 valign=top style='width:18.0cm;border:solid windowtext 1.0pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;<span
style='color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";color:#7F0055'>package</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>
org.eclipse.graphiti.examples.tutorial.features;</span></p>
<p class=MsoNormal style='text-autospace:none'><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>&nbsp;</span></b></p>
<p class=MsoNormal style='text-autospace:none'><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>public</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>class</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
TutorialCollapseDummyFeature </span><b><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:#7F0055'>extends</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
AbstractCustomFeature {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>
TutorialCollapseDummyFeature(IFeatureProvider fp) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>super</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>(fp);</span><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:black'>}</span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>boolean</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
canExecute(ICustomContext context) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>boolean</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> ret = </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>false</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
PictogramElement[] pes = context.getPictogramElements();</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (pes != </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>null</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
&amp;&amp; pes.</span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";color:#0000C0'>length</span><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:black'> == 1) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Object bo = getBusinessObjectForPictogramElement(pes[0]);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>if</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> (bo </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>instanceof</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
EClass) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ret = </span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>true</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>return</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> ret;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> String getName() {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;</span><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>return</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#2A00FF'>&quot;Collapse&quot;</span><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> String getDescription() {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>return</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#2A00FF'>&quot;Collapse
Figure&quot;</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> String getImageId() {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>return</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> IPlatformImageConstants.</span><i><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#0000C0'>IMG_EDIT_COLLAPSE</span></i><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>boolean</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
isAvailable(IContext context) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>return</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>true</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
}</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New"'>&nbsp;</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#646464'>@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>void</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
execute(ICustomContext context) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
MessageDialog.openInformation(PlatformUI.<i>getWorkbench</i>()<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
.getActiveWorkbenchWindow().getShell(), </span><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#2A00FF'>&quot;Information&quot;</span><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>,</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#2A00FF'>&quot;The 'Collapse Feature' is intentionally not implemented
yet.&quot;</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:black'>);</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>}</span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>}&nbsp;</span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>Finally the feature
provider has to deliver our newly created custom feature (overwrite the method </span><span
class=code1><span lang=EN-US style='color:black'><a
href="../../../javadoc/org/eclipse/graphiti/features/IFeatureProvider.html#getCustomFeatures(org.eclipse.graphiti.features.context.ICustomContext)"><span
style='font-style:normal'>getCustomFeatures</span></a></span></span><span
class=code1><span lang=EN-US style='color:black;font-style:normal'>)</span></span><i><span
lang=EN-GB style='color:black'>. </span></i></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>This implementation can
be seen here:</span></p>
<p class=MsoNormal><span lang=EN-GB style='color:black'>&nbsp;</span></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=680
style='width:18.0cm;border-collapse:collapse'>
<tr>
<td width=680 valign=top style='width:18.0cm;border:solid windowtext 1.0pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#646464'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@Override</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>public</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> ICustomFeature[]
getCustomFeatures(ICustomContext context) {</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>return</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>new</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
ICustomFeature[] </span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New"'><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style='color:black'>{ </span><b><span style='color:#7F0055'>new</span></b><span
style='color:black'> TutorialRenameEClassFeature(</span><b><span
style='color:#7F0055'>this</span></b><span style='color:black'>),</span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>new</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> TutorialDrillDownEClassFeature(</span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>this</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>),</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>new</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'>
TutorialAssociateDiagramEClassFeature(</span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>this</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>),</span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>new</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New";color:black'> TutorialCollapseDummyFeature(</span><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>this</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>)};</span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span lang=EN-US>&nbsp;</span></p>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal><a href="http://www.eclipse.org/legal/epl-v10.html"
shape=rect><span lang=EN-US>Copyright (c) SAP AG 2005, 2010.</span></a> </p>
</div>
</body>
</html>