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| <td bgcolor="#000080" colspan="2"><b><font color="#FFFFFF">Example 2 |
| - Layout Managers</font></b></td> |
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| <p align="center"> |
| <img border="0" src="demo2.gif" width="174" height="107"></p> |
| <p>In this example, a panel is created with a FlowLayout for its layout |
| manager. A flow layout positions children left-to-right in rows |
| going from top-to-bottom. The children are sized according to |
| their preferred size.</p> |
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| <pre><font size="2" color="#000084">import</font><font size="2" color="#000000"> org.eclipse.swt.widgets.Shell;</font><font size="2" color="#000084"> |
| import</font><font size="2" color="#000000"> org.eclipse.swt.widgets.Display;</font><font size="2" color="#000084"> |
| import</font><font size="2" color="#000000"> org.eclipse.draw2d.*;</font><font size="2" color="#000084"> |
| import</font><font size="2" color="#000000"> org.eclipse.swt.SWT;</font><font size="2" color="#000084"> |
| import</font><font size="2" color="#000000"> org.eclipse.draw2d.geometry.*; |
| </font><font size="2" color="#000084"> |
| public</font><font size="2" color="#000000"> </font><font size="2" color="#000084">class</font><font size="2" color="#000000"> Demo2 {</font><font size="2" color="#000084"> |
| public</font><font size="2" color="#000000"> </font><font size="2" color="#000084">static</font><font size="2" color="#000000"> </font><font size="2" color="#000084">void</font><font size="2" color="#000000"> main(String args[]){ |
| Shell shell = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> Shell(); |
| shell.open(); |
| shell.setText(</font><font size="2" color="#008484">"Draw2d"</font><font size="2" color="#000000">); |
| LightweightSystem lws = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> LightweightSystem(shell); |
| IFigure panel = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> Figure(); |
| <b>panel.setLayoutManager(</b></font><b><font size="2" color="#000084">new</font></b><font size="2" color="#000000"><b> FlowLayout());</b> |
| lws.setContents(panel); |
| |
| Clickable button = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> Button(</font><font size="2" color="#008484">"Click me"</font><font size="2" color="#000000">); |
| Clickable checkbox = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> CheckBox(</font><font size="2" color="#008484">"Check box"</font><font size="2" color="#000000">); |
| |
| Shape ellipse = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> Ellipse(); |
| ellipse.setBackgroundColor(ColorConstants.yellow); |
| ellipset.setSize(64, 36); |
| |
| Shape rectangle = </font><font size="2" color="#000084">new</font><font size="2" color="#000000"> RectangleFigure(); |
| rectangle.setBackgroundColor(ColorConstants.lightBlue); |
| rectangle.setSize(64, 36); |
| |
| <b>panel.add(button); |
| panel.add(checkbox); |
| panel.add(ellipse); |
| panel.add(rectangle);</b> |
| |
| Display display = Display.getDefault(); |
| </font><font size="2" color="#000084">while</font><font size="2" color="#000000"> (!shell.isDisposed ()) { |
| </font><font size="2" color="#000084">if</font><font size="2" color="#000000"> (!display.readAndDispatch ()) |
| display.sleep (); |
| } |
| } |
| }</font></pre> |
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