[Moose-dev] Port & transmission in Mondrian

Dear List, Yesterday evening I found the time between two ground shakes to have a chat with Doru about porting some of the Glamour ideas in Mondrian. I would like to have a better support for interaction, useful for animation. In Glamour, the essential idea for interaction rely on 4 notions: Pane, Presentation, Port and Transmission. (Please, correct me if I am wrong). The Mondrian equivalent of Pane and Presentation are MOGraphElement and MOShape, respectively. Port and Transmission are left to be implemented. You can find them in the version 384. Here is a short test I wrote (all the test methods given here may be found in MOInteractionTest). -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= testSimpleTransmission | node1 node2 transmission | node1 := MONode on: 'test1'. node2 := MONode on: 'test2'. transmission := (MOTransmission new) origin: (node1 interaction port: #output); destination: (node2 interaction port: #input); yourself. (node1 interaction port: #output) value: 42. self assert: (node1 interaction port: #output) value = 42. self assert: (node2 interaction port: #input) value = nil. transmission transmit. self assert: (node1 interaction port: #output) value = 42. self assert: (node2 interaction port: #input) value = 42 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Then, I can write: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= testEmittingOnAPort2 | view transmission nodeSet1 nodeSet2 globalVariable node1 node2 interaction1 | view := MOViewRenderer new. interaction1 := view interaction on: MOMouseEnter do: [:ann | ann transmit: 42 onPort: #output ]; yourself. nodeSet1 := view nodes: (1 to: 20). node1 := nodeSet1 first. view interaction from: interaction1 port: #output do: [:ann | globalVariable := ann value ]. nodeSet2 := view nodes: (21 to: 40). node2 := nodeSet2 first. window := view open. self assert: (globalVariable isNil). node1 announce: (MOMouseEnter new). self assert: (globalVariable = 42). -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= But there is something wrong. In the second script, interaction1 should not be necessary, shouldn't it? Else it defeats the whole purpose of having port and transmission. Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.