Bonjour Bob, In some apps I am using the following script. It is an adaptation to drap and drop inside one field, of a script from Eric Chatonet he had written for drag and drop from one field to another.
Besides the field, this script uses an extra field name "tempo" which allows to see what line one is dragging. A bug (# 6823) prevented this script to work well in a grouped field (but the Slug had writte a workaround). Seems that now this bug has been fixed : I just tried the script on a grouped field and it works. Best regards from Grenoble André ----------- THE SCRIPT OF THE FIELD ----------------------- local lLineNo,tLaLigne,tStyle, -- script local variable ---------------------------------- on mouseEnter set the dragDelta to 5 -- instead of 10 seems to prevent to drag a wrong line too often end mouseEnter ---------------------------------- on dragMove -- sent repeatedly when the dragdata is within the field local tContents,tHilitedText ----- put (the mouseV - the top of the target) div the effective textHeight of the target into lLineNo -- line number if lLineNo > the number of lines of the target then put the number of lines of the target into lLineNo ----- lock screen put StripCR(me) into tContents -- see below put the hilitedText of the target into tHilitedText -- stores highlighted line put cr after line lLineNo of tContents -- creates a blank line set the text of the target to tContents set the hilitedLine of the target to lineOffset(tHilitedText,tContents) -- restores highlighted line unlock screen delete line (the hilitedLine of the target) of the target end dragMove on DragLeave -- restores current contents local tHilitedLine, ----------- lock screen put the hilitedLine of the target into tHilitedLine put StripCR(me) into the target -- set the hilitedLine of the target to tHilitedLine unlock screen end DragLeave ---------------------------------- on dragEnter -- NÉCESSAIRE DANS LE CONTROL DE DESTINATION set the dragAction to "Move" end dragEnter ---------------------------------- on dragDrop local tContents ----- put StripCR(me) into tContents -- see below if lLineNo = 0 then put the dragdata["text"] & cr before tContents else put cr & the dragdata["text"] after line lLineNo of tContents end if lock screen set the text of the target to tContents set the hilitedLine of the target to lLineNo + 1 -- sets highlighted line to dropped line unlock screen end dragDrop ---------------------------------- function StripCR pText -- returns 'normal' field's contents if char 1 of pText = cr then delete char 1 of pText if char -1 of pText = cr then delete char -1 of pText replace cr & cr with cr in pText return pText end StripCR -- --------------------------------- on dragStart --NÉCESSAIRE DANS LE CONTROL SOURCE set the dragData["text"] to the selectedText put the selectedText of the target into fld "Temp" -- in order to create the right image -- put tLaLigne into fld "Temp" set the dragImage to CreateDragImage() -- see below set the dragImageOffset to the width of last image div 2,the height of last image div 2 -- centered end dragStart on dragEnd delete last image -- we no longer need the drag image end dragEnd --------------------------------- function CreateDragImage -- creates drag image on-the-fly local tRect,tempImage ----- put the rect of fld "Temp" into tRect ----- export snapshot from rect tRect of this cd to tempImage as jpeg -- export image to a variable lock messages -- important to speed up the process create invisible image -- we don't want to see it set the text of last image to tempImage if there is an image ID 6001 then delete image ID 6001 set the ID of last image to 6001 -- setting dimensions unlock messages return the ID of last image -- we need it to set the dragImage property end CreateDragImage ------------------------------------------------------------------------------------------------ Le 10 févr. 2012 à 01:35, Bob Sneidar a écrit : > Hi all. I use locked fields with multiple lines and listBehavior set to true > as a kind of menu. Now I am trying to allow the user to rearrange the items > in the list. I read in the Dictionary that LC handles drag and drop between > *unlocked* fields automatically. Crud. So I tried unlocking the field on > mouseDown and then sending mouseDown again in 0 seconds, but that was a bust. > I tried just unlocking the field on mouseDown and locking it on mouseUp but > that was problematic too. > > Any easy way to implement this? I could use a datagrid I suppose (grumble > grumble) but it would be nice if I could just do this with a simple list > field. I want to reorder entire lines by dragging and dropping them. > > Bob > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode