Bug 355629

Comment 1 Robert Brodt 2011-08-24 06:50:33 EDT

Created a simple choreography model with start event, two choreo tasks and end event all connected by sequence links. The only other thing on the canvas is a message (not connected).

Selected the "Save as image" from the canvas context menu, image type gif and just pressed ok (i.e. accepted the defaults). Got an error window saying couldn't save due to number of colours and the following exception in the error log:

eclipse.buildId=I20100608-0911
java.version=1.6.0_18
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.jee.product

Error
Wed Mar 09 12:46:14 GMT 2011
Method 'startSaveAsImageDialog(graphicalViewer)': Can not save image:
Details: java.lang.Exception: Image contains more than 256 colors.
Automated color reduction is currently not supported.
at org.eclipse.graphiti.ui.internal.services.impl.UiService.create8BitIndexedPaletteImage(UiService.java:108)
at org.eclipse.graphiti.ui.internal.services.impl.UiService.createImage(UiService.java:65)
at org.eclipse.graphiti.ui.internal.services.impl.UiService.startSaveAsImageDialog(UiService.java:160)
at org.eclipse.graphiti.ui.internal.action.SaveImageAction.run(SaveImageAction.java:58)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3552)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3171)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

Comment 2 Brian Fitzpatrick 2011-12-09 13:21:26 EST

Posted a question in the Graphiti forums on this one:
http://www.eclipse.org/forums/index.php/t/264751/

Comment 3 Ralph Soika 2015-05-09 08:40:21 EDT

As Michael Wenz replied in the comment http://www.eclipse.org/forums/index.php/t/264751/ 

the gif format is not fully supported by Graphiti. 
I tested this once again and can confirm that this is still an issue.

I would suggest to remove the export format 'GIF' from the list if this is possible. But I can not find the definition of the export dialog.

Comment 4 Robert Brodt 2015-05-11 09:38:27 EDT

This option is actually contained in a Graphiti internal dialog and needs to be fixed by the Graphiti team.

I have reported this in Bug 467002.