E4/UI/Running the photo demo

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A screenshot of the e4 photo demo.
The instructions provided on this page were last updated for the Eclipse 4.0 release.

The e4 photo demo showcases an e4-based RCP application that allows the user to browse images in their workspace.

Contents

Prerequisites

  1. Download an Eclipse 4.0 SDK here.
  2. Unzip/Untar the file as you would with a regular Eclipse SDK download.
  3. Start up Eclipse.
  4. See E4/UI/Running_the_compatibility_demo for extra bundles you might need to work with the photo demo.

Features

  • Shows how CSS can be used to skin an application (note that the CSS engine does not have any particular dependencies on e4 technologies and can be reused in an Eclipse 3.x-based application)

Setup steps

LaunchPhoto.png
  1. Select File > Import... and select CVS > Projects from CVS, click Next.
  2. Copy the CVS repository location and paste it into the "Host" field to populate the wizard page: :pserver:anonymous@dev.eclipse.org:/cvsroot/eclipse
  3. You should see "Host: dev.eclipse.org, Repository path: /cvsroot/eclipse, User: anonymous, Connection type: pserver".
  4. Click 'Next' and select the second option 'Use an existing module'.
  5. Drill down as follows: e4 > releng > and select org.eclipse.e4.ui.releng. Click 'Next'.
  6. Important: Do not click Finish just yet. Advance to the last wizard page using Next, then click on Refresh Tags. Select the tag appropriate for your installation (you probably want v20100727-1415) and click Finish.
  7. This will check out a project into your workspace. Expand the project in the 'Package Explorer' view and then right-click on the e4.ui.examples.psf file and then select 'Import Project Set...'.
  8. Click OK to reuse the same repository you previously used above. If you are prompted for login credentials, simply enter in 'anonymous' for your user name.
  9. You will now have a couple more projects in your workspace. Expand the 'org.eclipse.e4.demo.e4photo' project and open the e4photo.product file.
  10. In the opened editor, navigate to the 'Testing' section in the 'General' tab. It should be located in the bottom left hand side of the editor.
  11. Click the 'Launch an Eclipse application' hyperlink. The demo should then launch.

Click on the Create Album toolbar button or select File > Create Album. The new album location on disk will be printed to your Eclipse console. Just drop a couple (not too many!) of JPEG photos in that directory, then play with the application. Make sure you find a photo with embedded GPS coordinates - when you select it in the Exif view, the Location view will show where the photo was taken using Google Maps. You can find an example photo with GPS coordinates on bug 263898.

Then, have a look at the Application.e4xmi file to see how the demo application is configured, and/or look at the source files for the individual pieces (views and command handlers).

Known issues

  • You may see some output into system error in the console like the following. It is safe to ignore them.
Unable to find parent with ID "{0}"

Unable to find parent with ID "{0}"
  • Switching perspectives does not work.
  • The 'Exif' view may not react to selection changes if it is rendered, see bug 299755 for more details.
  • On Windows, you may see errors if you have a browser rendered in the 'Location' view. See bug 303978 for more details.
  • Photo demo fails to launch from the .product file. Open the Run Configuration dialog and hit Run, see bug 303973.