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[nebula-dev] How about this idea?

Donald (and those who are interested),

From my testing I can get the tree behavior to change the root node and the underlying node relationship, in other words select predefined tree views for the data available with out changing the ContentProvider and LabelProvider, if I can let the my content and label providers know what the selection is from the dropdown menu. Of course the content and label providers have to know about the user’s selection prior to myLabelProvider.getColumnText and myContentProvider.getChildren being called so they will execute the correct logic based on the menu selection. There looks like there are some places I can add a listener however, this will do me no good if it can’t update the providers before they execute. So far this looks like the must logical way to have multiple tree views. Am I attacking this problem the right way or am I missing something in the XViewer architect? I know this is not your main concern and you have plenty of other responsibilities, but any feedback you could provide would be greatly appreciated.

 

Thank You,

Michael

 


From: nebula-dev-bounces@xxxxxxxxxxx [mailto:nebula-dev-bounces@xxxxxxxxxxx] On Behalf Of Stapleton, Mike
Sent: Sunday, January 16, 2011 12:38 PM
To: Nebula Dev
Subject: Re: [nebula-dev] Ordering columns programmatically?

 

Donald (or anyone who would like to chime in),

I got switching between predefined tables working nicely using your example. However, I have a requirement to switch between tables and tree views in the same application. I can do one or the other from different applications but when I try to do both in the same application I have conflicts with the content and label providers that represent the 2 different structures as well as the way I structure the input to get it to layout properly. Also switching between different tree views is clumsy because it requires you to restructure your tree. I would think this is something others would find useful but can’t find any examples or information on it. Is there a mechanism built into XViewer that that supports these types of different layouts dynamically? So far I’m back to resetting the content and label providers to as well as restructuring the input. Any guidance would be greatly appreciated.

 

Thanks to anyone who has time and knowledge to rrespond.

Michael

 


From: nebula-dev-bounces@xxxxxxxxxxx [mailto:nebula-dev-bounces@xxxxxxxxxxx] On Behalf Of Dunne, Donald G
Sent: Wednesday, December 08, 2010 4:07 PM
To: Nebula Dev
Subject: Re: [nebula-dev] Ordering columns programmatically?

 

I've added an example of this to the example package withing the xviewer plugin.  Sync up the latest source code to see it. 

You can run MyXViewerTest.java  (in Eclipse, right-click -> Run-As -> Java Application) to see it work.

 

The customization icon allows the user to easily toggle between the table default and their stored options.

Also added MyDefaultCustomizations to answer your question, Mike, on how to build a CustomizeData object to be sent in upon user selecting to change.  The example also has two items at the top to show how they can be used.

 

To also answer your question here:

 

   public static CustomizeData getCompletionCustomization() {
      CustomizeData data = "" CustomizeData();
      data.setName("Name Status");
      data.setGuid(XViewerLib.generateGuidStr());
      data.setNameSpace(MyXViewerFactory.COLUMN_NAMESPACE);

 

      XViewerColumn nameColumn = MyXViewerFactory.Name_Col.copy();
      nameColumn.setSortForward(true);
      nameColumn.setWidth(175);
      nameColumn.setShow(true);
      data.getColumnData().getColumns().add(nameColumn);

 

      XViewerColumn percentCol = MyXViewerFactory.Completed_Col.copy();
      percentCol.setWidth(150);
      percentCol.setShow(true);

 

      data.getColumnData().getColumns().add(percentCol);
      return data;
   }

Hope that helps,

Don

 


From: nebula-dev-bounces@xxxxxxxxxxx [mailto:nebula-dev-bounces@xxxxxxxxxxx] On Behalf Of Stapleton, Mike
Sent: Tuesday, December 07, 2010 11:18 AM
To: Nebula Dev
Subject: Re: [nebula-dev] Ordering columns programmatically?

Thanks Donald,

I’ve been looking at the code for CustomizeManager, CustomizeData, XViewerColumn, and XViewerFactory to try and determine the best way to go about creating CustomizeData objects to represent my data groupings. Currently in the example code the columns are created and registered in the factory class. As well, what you see in the table are those columns created and registered from the factory class. Are you saying that I should create XViewerColumns and add then to a CustomizeData object along with any filters and sorters I might want and then just load a customization selected by the user as described below. I’m failing to see the connection between the columns defined in the XViewerFactory and those defined from a CustomizeData object? Do all columns need to be defined from the MyXViewerFactory up front and then added to a CustomizeData object to create the different data views? Could you elaborate a little on this process?

 

TIA,

Mike

 


From: nebula-dev-bounces@xxxxxxxxxxx [mailto:nebula-dev-bounces@xxxxxxxxxxx] On Behalf Of Dunne, Donald G
Sent: Friday, December 03, 2010 8:33 AM
To: Nebula Dev
Subject: Re: [nebula-dev] Ordering columns programmatically?

 

Since an XViewer customization includes width, sorting, filtering and etc, you can't just reorder the columns, you have to set a full CustomizationData object.  From XViewer class, you can getCustomizationMgr().loadCustomization(CustomizeData)

 

Your pulldown selection can just select the appropriate CustomizeData and set it.

 


From: nebula-dev-bounces@xxxxxxxxxxx [mailto:nebula-dev-bounces@xxxxxxxxxxx] On Behalf Of Stapleton, Mike
Sent: Wednesday, December 01, 2010 9:31 AM
To: Nebula Dev
Subject: [nebula-dev] Ordering columns programmatically?

Maybe someone can help me here? I want to be able to build different pre-defined data groupings. I have a dropdown which allows the user to select the group of data they want to see. In the process of doing this the order of the columns needs to change to match the new data and grouping. This requires me to add/delete some columns as well as reorder some columns. I provide content and label providers to define each data grouping and reset them and the input when the user makes a selection from the Group By dropdown menu. I added a function in my extension of the XViewer Factory that calls clearColumnRegistration and then I re-register the columns in the order I want. Problem is that the columns never reorder. The new content and label providers appear to get set and my data gets re-ordered but the column headers remain in the same position? So the headers don’t match the column data? I now you can hide and reorder columns from the Customize Dialog and by just dragging columns to a different position but I’m interested in doing this programmatically to get the data the user really wants to see and the way they want to see it. I’m I going about this in the right way or am I missing something? Anyone try something like this yet? Any explanation of why I can’t reorder the columns by clearing them from the registration and re-registering then would be helpful.

 

TIA,

Michael