| Adding marquee selection to SelectionTool [message #156142] |
Fri, 29 October 2004 17:19  |
Eclipse User |
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Greetings,
I have noticed that the Selection tool used in the logic example also
carries "Marquee" drag functionality when you click and drag on a canvas.
However, the default behaviour doesn't seem to do this. How would I add
this? I can't seem to find the example code that does it.
I tried setting a MarqueeDragTracker on the SelectionTool, but doing in
the createTool call on an entry throws an exception in
AbstractTool.activate, so I assume this approach is either incorrect or
being done too early.
--Cam
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| Re: Adding marquee selection to SelectionTool [message #156503 is a reply to message #156491] |
Mon, 01 November 2004 15:09  |
| Eclipse User |
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Yep, that did it! Thanks. One follow-up: with the selection tool working
in this way, is there any further functionality in the Marquee tool that
makes it worth keeping on my palette?
--Cam
Randy Hudson wrote:
> It sounds like you are attempting to drag your contents editpart. You
> should return NULL or the marquee drag tracker in your getDragTracker(req)
> method. See LogicDiagramEditPart for an example.
> "Cameron Bateman" <cbateman@rim.com> wrote in message
> news:cm61bk$h3i$1@eclipse.org...
> > Hi Pratik,
> >
> > Thanks for your response. I am adding the PanningSelectionToolEntry as
> > you say, but when I try to click and drag on my canvass with the tool, it
> > just sets the "invalid mode" mouse pointer (circle with a cross through
> > it) as though a request is being rejected.
> >
> > Is it possible that I'm inadvertently overriding the default behaviour?
> > The marquee tool _does_ work. The code that creates the pallette entries
> > looks like this:
> >
> > ..
> > _paletteRoot = new PaletteRoot();
> >
> > // group the default controls
> > PaletteGroup controls = new PaletteGroup("Controls");
> >
> > // selection tool
> > PanningSelectionToolEntry toolEntry = new PanningSelectionToolEntry();
> > controls.add(toolEntry);
> > _paletteRoot.setDefaultEntry(toolEntry);
> >
> > // Marquee (group selection) tool
> > controls.add(new MarqueeToolEntry());
> >
> > _paletteRoot.add(controls);
> >
> >
> > --Cam
> >
> > Pratik Shah wrote:
> >
> > > The default behaviour already does that. All you need to do is add a
> > > PanningSelectionToolEntry to your palette.
> >
> > > "Cameron Bateman" <cbateman@rim.com> wrote in message
> > > news:cm5ric$6iu$1@eclipse.org...
> > > > Does anyone have an idea this?
> > > >
> > > > Thanks,
> > > >
> > > > Cameron
> > > >
> > > > Cameron Bateman wrote:
> > > >
> > > > > Greetings,
> > > >
> > > > > I have noticed that the Selection tool used in the logic example
> also
> > > > > carries "Marquee" drag functionality when you click and drag on a
> > > canvas.
> > > > > However, the default behaviour doesn't seem to do this. How would I
> add
> > > > > this? I can't seem to find the example code that does it.
> > > >
> > > > > I tried setting a MarqueeDragTracker on the SelectionTool, but doing
> in
> > > > > the createTool call on an entry throws an exception in
> > > > > AbstractTool.activate, so I assume this approach is either incorrect
> or
> > > > > being done too early.
> > > >
> > > >
> > > > > --Cam
> > > >
> > > >
> >
> >
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