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InfiniteProgressPanel

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lcaron edited this page May 31, 2017 · 2 revisions

Introduction

https://raw.githubusercontent.com/lcaron/opal/wiki/images/infiniteprogresspanel.png

This widget is dedicated to long task operations, widely inspired by work of Romain Guy.

Usage

An Infinite Progress Panel is attached to a composite. In fact, the panel is a transparent window (shell) located on another window.

The first thing to do is to get a panel :

final InfiniteProgressPanel panel = InfiniteProgressPanel.getInfiniteProgressPanelFor(shell);

Then you can "customize" it :

panel.setText("Please wait...");
panel.setTextColor(shell.getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
panel.setTextFont(new Font(shell.getDisplay(), "Lucida Sans", 18, SWT.BOLD));

To start and stop the panel, simply use the start and stop methods :

panel.start();
... // Long time operation
panel.stop();

Et voilà !

You can customize the panel (there is a setter for each value) :

  • alpha : alpha value of the panel (between 0 and 255)
  • bars count : number of bars
  • default color : color of the bars
  • FPS : number of frames per second
  • line width : thickness of the bars
  • selection color : color of the highlighted bar
  • text, text color and text font

Animation

An animation is available at https://github.com/lcaron/opal/blob/wiki/wink/infinite.swf?raw=true

Example

An example (SnippetInfiniteProgressPanel) is provided in the directory src/test/java/org/mihalis/opal/InfinitePanel.

This example is also available here : https://github.com/lcaron/opal/blob/master/src/test/java/org/mihalis/opal/infinitePanel/SnippetInfiniteProgressPanel.java

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