Hi Phil, Yes it works BUT it doesn't constrain itself to the graphic.
I want it to only to report the points if the user includes the graphic when they d their drag... as it currently stands it reports coordinates even if the user does not drag across the graphic. But other that that it is total a different perspective on how I was looking at the problem... I was too focused on the graphic. thanks, Glen On Tue, Nov 9, 2010 at 12:27 PM, Phil Davis <[email protected]> wrote: > Hi Glen, > > See if this works: > > > -- card script -- > > local h1, h2, v1, v2 > > > on mouseDown > put the clickH into h1 > put the clickV into v1 > end mouseDown > > > on mouseUp > put the mouseH into h2 > put the mouseV into v2 > put grcDragRegion() > end mouseUp > > > function grcDragRegion > -- define mouse drag rect > put min(h1,h2) into tMouseLeft > put max(h1,h2) into tMouseRight > put min(v1,v2) into tMouseTop > put max(v1,v2) into tMouseBottom > > -- define overlap of mouse drag rect & grc rect > put max(tMouseLeft, the left of grc 1) into item 1 of tOverlapRect > put max(tMouseTop, the top of grc 1) into item 2 of tOverlapRect > put min(tMouseRight, the right of grc 1) into item 3 of tOverlapRect > put min(tMouseBottom, the bottom of grc 1) into item 4 of tOverlapRect > > -- return it > return tOverlapRect > end grcDragRegion > > Phil Davis > > > > On 11/9/10 10:48 AM, Glen Bojsza wrote: > >> I have a problem which I am not certain which method is valid or should be >> used (with Rev / Livecode there are sometimes too many ways of achieving a >> goal). >> >> I have a graphic on a card left 62 right 462. >> >> My objective is to allow a user to left click and drag across the graphic >> as >> if selecting a section of it. >> >> I need start left,top,right,bottom and end left,top,right,bottom. >> >> The only interest is knowing the start of the drag when inside the graphic >> and the end of the drag inside the graphic... with the following caveats. >> >> >> - The user may start the drag either outside the graphic and then >> continue the drag into the graphic (which is the start point) or start >> the >> drag inside the graphic which would be the start point. >> - The user may release the mouse button inside the graphic which >> indicates the stop point or release the mouse button outside the >> graphic >> where the stop point is at the point of the mouse leaving the graphic. >> >> >> This seems like it should be simple but I am getting tied down but trying >> to >> over complicate it? >> >> This is for Windows and Linux . >> >> Any elegant or simple solutions out there? >> _______________________________________________ >> use-revolution mailing list >> [email protected] >> Please visit this url to subscribe, unsubscribe and manage your >> subscription preferences: >> http://lists.runrev.com/mailman/listinfo/use-revolution >> >> > -- > Phil Davis > > PDS Labs > Professional Software Development > http://pdslabs.net > > _______________________________________________ > use-revolution mailing list > [email protected] > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution > _______________________________________________ use-revolution mailing list [email protected] Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
