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122	122
123	123	= Creating a Simple View =
124	124
125		-WRITE THIS SECTION
	125	+The next task consists of creating a view that is able to display the state of a Turing Machine. We will do this using a table with one column, where each row represents an entry on the tape of the Turing Machine. The tape shall be infinite to one side, and the position of the read/write head shall be movable by two buttons. The content of the tape shall be determined by the currently active instance of our simple text editor.
126	126
	127	+{{info title="Hint"}}
	128	+In this tutorial, we will be making use of the Standard Widget Toolkit (SWT) to build a user interface. It might be a good idea now to search for an introduction to SWT concepts on the Internet now before you proceed.
	129	+{{/info}}
	130	+
	131	+== Creating the View Class ==
	132	+
	133	+We will start by creating a class that will define the view.
	134	+
	135	+1. Create a class {{code language="none"}}TapeViewPart{{/code}} in a new package {{code language="none"}}de.cau.cs.rtprakt.login.simple.views{{/code}} that extends the [[ViewPart>>url:http://help.eclipse.org/juno/topic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/ui/part/ViewPart.html||shape="rect"]] class.
	136	+1. Add a private field {{code language="none"}}tableViewer{{/code}} of type [[TableViewer>>url:http://help.eclipse.org/juno/topic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/jface/viewers/TableViewer.html||shape="rect"]].
	137	+1. (((
	138	+Your TableViewPart contains a still empty method createPartControl. This method will be responsible for creating the user interface components of your view. Add the following code to create the table we want to display:
	139	+
	140	+{{code title="createPartControl(...)" language="java"}}
	141	+Table table = new Table(parent, SWT.BORDER);
	142	+TableColumn column = new TableColumn(table, SWT.NONE);
	143	+column.setWidth(80);
	144	+tableViewer = new TableViewer(table);
	145	+{{/code}}
	146	+)))
	147	+1. (((
	148	+The setFocus method controls what happens when your part gets the focus. Make sure the focus will then automatically be set to the table by adding the following code:
	149	+
	150	+{{code title="setFocus(...)"}}
	151	+tableViewer.getControl().setFocus();
	152	+{{/code}}
	153	+)))
	154	+
127	127
128	128
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	160	+
	161	+
	162	+
129	129	= Creating an Extension Point =
130	130
131	131	WRITE THIS SECTION

Confluence.Code.ConfluencePageClass[0]

Id

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1		-2982286
	1	+2982290

URL

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1		-https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/WS12EclPract/pages/2982286/The Plug-in Architecture of Eclipse
	1	+https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/WS12EclPract/pages/2982290/The Plug-in Architecture of Eclipse