Java(TM) Boutique - Tutorial - Building Easy Java GUIs with Thinlet, Part 2

Tutorials : Building Easy Java GUIs with Thinlet, Part 2 :

The Dividers: Separator and SplitPane

The Separator widget is merely a horizontal or vertical line. Here's an example from the Thinlet Web site with three buttons and a vertical and horizontal separator:

<panel columns="3" gap="4" top="4" left="4" right="4">
  <button text="Left" weightx="1"/>
  <separator />
  <button text="Right" weightx="1"/>
  <separator colspan="3" />
  <button text="Bottom" colspan="3" />
</panel>

The SplitPane widget is also a divider, since it splits two components defined within it. It's important to realize that it counts as one component, even if it contains two components (which again may contain components and so on). Here's a simple example:

<panel gap="4" top="4" left="4" right="4">
  <splitpane orientation="horizontal">
    <textarea text="Left"/>
    <textarea text="Right" />
  </splitpane>
</panel>

The divider may be dragged to the right or to the left. The layout looks like a table layout with two columns, but in fact it occupies only one Thinlet column.

You may specify (in pixels) the location of the divider:

<panel gap="4" top="4" left="4" right="4">
  <splitpane orientation="horizontal" divider="50">
    <textarea text="Left"/>
    <textarea text="Right" />
  </splitpane>
</panel>

Lastly, here's an example with two SplitPanes. Note that the total height of the text areas (Left and Bottom for example) is not changed by the value of the divider property:

<panel columns="1" gap="4" top="4" left="4" right="4">
  <splitpane orientation="vertical" divider="30">
    <splitpane orientation="horizontal">
      <textarea text="Left"/>
      <textarea text="Right" />
    </splitpane>
    <textarea text="Bottom" />
  </splitpane>
</panel>

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