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Difference between revisions of "EDT:Declaring widgets"

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The next sections outline a way to develop a Rich UI application. The IDE helps you to do the tasks quickly.
 
  
For background information, see [http://www.eclipse.org/edt/papers/topics/egl_web_technology.html Web technology for EGL Rich UI]; in particular, the sections on the DOM tree.
 
 
= Create a Handler type of stereotype RUIHandler =
 
 
<source lang="java">
 
package client;
 
 
import org.eclipse.edt.rui.widgets.GridLayout;
 
 
handler MyHandler type RUIhandler{initialUI =[ui
 
            ], onConstructionFunction = start, cssFile = "css/MyProject.css", title = "MyHandler"}
 
 
    ui GridLayout{columns = 3, rows = 4, cellPadding = 4, children =[]};
 
 
    function start()
 
    end
 
end
 
</source>
 
 
An IDE wizard initially creates a grid layout of 3 columns and 4 rows, as shown.
 
 
= Declare, customize, and display more widgets =
 
 
<source lang="java">
 
 
handler MyHandler type RUIhandler {initialUI = [ myGridLayout ]}
 
 
  myGridLayout GridLayout{
 
      rows = 4, columns = 3, cellPadding = 4,
 
      children = [ myLabel, myTextField, myCheckBox, myButton ]};
 
 
  myLabel TextLabel{ layoutData = new GridLayoutData{ row = 1, column=1},
 
      text = "Label: " };
 
 
  myTextField TextField{ layoutData = new GridLayoutData{ row = 1, column = 2,
 
      horizontalSpan = 2 }, text = "Text field"};
 
 
  myCheckBox CheckBox{ layoutData = new GridLayoutData{ row = 2, column = 2,
 
      verticalSpan = 2 }, text="Check box" };
 
 
  myButton Button{ layoutData = new GridLayoutData{ row = 4, column = 1,
 
                    horizontalSpan = 2,
 
                    horizontalAlignment = GridLayoutLib.Align_Center },
 
                    text="Button" };
 
end
 
 
 
 
 
 
 
 
</source>
 
 
= Assign and code event handlers =
 
 
<source lang="java">
 
 
</source>
 
 
= Write initialization code in the on-construction function =
 
 
<source lang="java">
 
 
</source>
 
 
 
<br> <br><br> ♦ [[EDT:Code snippets|Code snippets main page]] <br>
 
 
[[Category:EDT]]
 

Latest revision as of 17:39, 16 February 2012

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