Description Laurent Redor 2018-01-08 11:05:15 EST

Created attachment 272177 [details]
SelectionProject.zip

You can use a zone to select several elements as explained in Selection section of chapter https://www.eclipse.org/sirius/doc/user/diagrams/Diagrams.html#standardToolId.

The ALT key is not described in this documentation but it allows to use the selection by a zone with a container under the initial location of the zone. This mode has not the same behavior as selection by a zone with the diagram under the initial location of the zone. There are 2 differences:
* the border nodes are not selected
* the 2 modes, "from left to right" and "from right to left", are not available.

Steps to reproduce:
* Import project Selection from SelectionProject.zip (data copied from /org.eclipse.sirius.tests.swtbot/data/unit/hiddenElements/VP-3473)
* Open the diagram "New Diagram"
* Draw a selection rectangle from "just before the top-left corner of p1" to "just after the bottom-right cordner of a1".
* OK --> Only a1 is selected as it is the only element fully contained in the selection
* Draw a selection rectangle from "just after the bottom-right corner of p1" to "just before the top-left cordner of a2".
* OK --> p1, E2 and a2 are selected as they all intersect the selection
* Press ALT key and draw rectangle from "just before the top-left corner of E1" to "just after the bottom-right cordner of a1" (the initial location of the selection zone is in the container p1).
* KO --> Nothing is selected. a1 should be selected as it is fully contained in the selection
* Press ALT key and draw rectangle from "just after the bottom-right corner of E2" to "just before the top-left cordner of a2" (the initial location of the selection zone is in the container p1).
* KO --> Nothing is selected. E2 and a2 should be selected as they intersect the selection