I definitely think I will need to wait for 1.1 before I do any real programming as I require drag and drop from uDig to Compendium and I understand from the documentation that this is only possible with 1.1.
Thanks for the D&D comments. Looks like I will need to do both types eventually. But I can start with string to ease myself into it. :-) Michelle -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jesse Eichar Sent: 01 November 2005 01:52 To: User-friendly Desktop Internet GIS Subject: Re: [udig-devel] Drag and Drop and beyond. [snip] >I am trying to understand how to start approaching the D&D stuff I need >to do. If I drop a string or image file onto a Map, I assume it would >need to create a new layer in the layer manager (and assuming I have >programmed where), ultimately store the data in the database and then >render the feature. > > Are you going to be developing on uDig 1.1 or 1.0.x? I have done a lot of the difficult work so there is a nice framework for 1.1 but the downside is that it not being released until later this month. I don't know what your timeline is like. You can look at net.refractions.udig.project.ui.internal.actions.DropAction for an example of an action taken when a url is dropped on a a layer. The declaration of the drop action in the project.xml goes something like: <action class="net.refractions.udig.project.ui.internal.actions.SLDDropAction" name="SLD Drag and Drop"> <destination class="net.refractions.udig.project.ILayer"/> <acceptedType class="java.io.File"/> <acceptedType class="java.net.URL"/> <acceptedType class="java.lang.String"/> </action> I'm going to put this example in the drag and drop documenation I wrote for you. >So I need to deal with Map, LayerManager, RenderManager, Catalogue, >Feature and probably more? Ahhh! I feel sleepless nights coming on. > > This depends on the work flow and requirements. Suppose you drop a string on layer in LayersView and the drop action creates a feature by interpreting the string and adds it to the layer. In this case can use the Layer.getResource() method to get a FeatureStore (Class used for adding/removing features from a datastore) and add the feature using the FeatureStore. In this case all you need to know is the Layer and FeatureStore API. Now suppose you drop a image that some how specifies a layer and all the features in the layer. In this case you need to know Map, Layer, Catalog, Feature, DataStore, etc... Hope this helps. Jesse _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
