Bug 520881

Description Laurent Redor 2017-08-11 04:22:24 EDT

Created attachment 269798 [details]
EdgeCreationPositionTest.zip

The edge is always created and attached to the nearer sides of the source and target nodes (even without or with associated border nodes).
The goal of this issue is to create the border nodes near the locations clicked by the user. So the behavior will be different for the creation of a simple edge and the creation of an edge with its associated border nodes.

This bug is here since the bug 435507.

Steps to reproduce:
* Import the project EdgeCreationPositionTest from EdgeCreationPositionTest.zip (extracted from test data of org.eclipse.sirius.tests.swtbot.EdgeCreationPositionTest)
* Open the diagram "Node"
* Ensure the snap to grid and snap to shape are disabled
* Use the tool "Super" and create an edge between the top left corner of A and the bottom right corner of B
* OK: The edge is created by respecting the shortest way. For information, it is not possible for an edge to "cut/pass trough" its source or target.
* Undo the previous edge creation
* Use the tool "SuperWithBorderNode" and create an edge (and its associated border nodes) between the top left corner of A and the bottom right corner of B
* KO: The border nodes are created at the extremity of the edge like in above scenario. In this case, they can be created near the clicked locations.
* Undo the previous edge creation
* Enable the snap to grid with a grid spacing of 25 pixels
* Use the tool "Super" and create an edge between the top left corner of A and the bottom right corner of B
* OK: The edge is created by respecting the shortest way and the extremity is on the grid
* Undo the previous edge creation
* Use the tool "SuperWithBorderNode" and create an edge (and its associated border nodes) between the top left corner of A and the bottom right corner of B
* KO: The border nodes are created at the extremity of the edge like in above scenario. In this case, they can be created near the clicked locations and snapped to the grid.