Ok, look at that code: | collection1 collection2 list1 list2 | collection1 := #(1 2 3 4 5) asOrderedCollection. collection2 := #($a $b $c $d $e) asOrderedCollection. list1 := ListModel new. list1 items: collection1. list1 dragEnabled: true. list1 dropEnabled: true. list1 acceptDropBlock: [ :transfer :event :source :receiver :index | transfer passenger do: [:e | collection1 insert: e first before: index. collection2 remove: e first]. list1 items: collection1. list2 items: collection2 ]. list1 openWithSpec. list2 := ListModel new. list2 items: collection2. list2 dragEnabled: true. list2 dropEnabled: true. list2 acceptDropBlock: [ :transfer :event :source :receiver :index | self halt ]. ^ list2 openWithSpec Now you can drag and drop from list2 to list1, and I think the code is good for drag and drop of multiple items. Thierry Le 02/04/2014 17:08, MartinW a écrit :
I tried the following, but i do not know what to do in the acceptDropBlock. It seems the receiver in the block is only an item in a list, but how do i get the receiving list/collection? What i want to achieve is that a user can drag the '1' from list1 to list2 and the resulting collections will then be collection1: (2 3 4 5) collection2: ($a $b $c $d $e 1) and the lists will be updated accordingly.
| collection1 collection2 list1 list2 |
collection1 := #(1 2 3 4 5). collection2 := #($a $b $c $d $e).
list1 := ListModel new. list1 items: collection1. list1 dragEnabled: true. list1 dropEnabled: true. list1 acceptDropBlock: [ :transfer :event :source :receiver :index | self halt ]. list1 openWithSpec.
list2 := ListModel new. list2 items: collection2. list2 dragEnabled: true. list2 dropEnabled: true. list2 acceptDropBlock: [ :transfer :event :source :receiver :index | self halt ]. list2 openWithSpec.
Goubier Thierry wrote
yes, most list-like widgets can drag and drop. Feedback when inserting items in lists could be improved, however (i.e. you can drop on a list item, but I've never seen the feedback for dropping between list items). Le 02/04/2014 16:09, MartinW a écrit :
i have to make a UI where users can sort items (sentences) into different collections by dragging and dropping them between list views. Is this possible with the widgets currently available in Pharo?
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