looks great in firefox, ie7 seems to "flutter" between dragging between the pointer cursor and the 'action' cursor
On Wed, Apr 23, 2008 at 9:18 PM, <[EMAIL PROTECTED]> wrote: > Hi list, > > I've been working a bit on mouse cursors in OL, and would like to request > some feedback on the current approach. > > I've got an example up in my sandbox: > http://dev.openlayers.org/sandbox/bartvde/cursor/examples/cursor.html > > And I've added a very preliminary patch to ticket1484: > http://trac.openlayers.org/attachment/ticket/1484/ticket1484.patch > > I'll try and outline my approach a bit. The most difficult decision I found > was whether or not to use css. I find it quite a bit of overhead to make > css classes for all possible cursor combinations. In my case I would need > the following classes (looks already quite cumbersome to me): > > .olControlZoomBoxCursor > .olControlZoomBoxOutCursor > .olControlDragPanCursor > .olControlDragPanMouseupCursor > .olControlDragPanMousedownCursor > > etc.? As you can see, even control properties (like the out property for > ZoomBox) come into play, so we would need something like a cursorClass > property for people to override the default class names. For the approach > to work, we would need them to start their names with the 'olControl' > prefix, otherwise we don't know which css classes are safe to remove from > the map div when e.g. a different control is activated (we cannot just > remove any css class from the map div, since people might have set stuff on > it, so we should remove all classes that start with 'olControl' or some > similar approach). This can be error-prone IMHO. > > I did see there are some utility functions (like addClass, removeClass, > toggleClass) in topp's almanac sandbox which could be used. > > Disadvantage ofcourse of my approach is that the mouse cursors cannot > easily be altered by non-programmers, but I wonder how often a chosen > cursor approach will change in a project. > > If people feel strongly that css is the way to go though, I can change the > code to add and remove css classes on the map div. > > What I've done is briefly: > > * add a cursor property on the Control class, which is set on the map div > when the control is activated > * add a cursors property (array) on the Handler class, which makes it > possible to set cursors on the map div in different functions of a Handler > (like mousedown). For now I've only implemented mousedown and mouseup in > the Drag Handler as an example. > > I think the example and the patch tells the rest of the story best. > > Feedback very much welcome. TIA. > > Best regards, > Bart > > _______________________________________________ > Dev mailing list > [email protected] > http://openlayers.org/mailman/listinfo/dev > -- Zac Spitzer - http://zacster.blogspot.com (My Blog) +61 405 847 168 _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
