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Is there a preferred way to add zoom to a FigureCanvas? [message #203571]

Tue, 22 November 2005 16:03

Eclipse User

if not is there a recommended way?

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #203587 is a reply to message #203571]

Tue, 22 November 2005 16:40

Eclipse User

The logic example does zoom in and zoom out for diagrams, using the GEF
actions from org.eclipse.gef.ui.actions. Is that what you mean?

"Drew" <drew@acm.org> wrote in message news:dm0133$2uu$1@news.eclipse.org...
> if not is there a recommended way?
>
>
>

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #203601 is a reply to message #203587]

Tue, 22 November 2005 17:57

Eclipse User

no. I am usiung draw2d only, no editparts.
I am currently using something similar to org.eclipse.draw2d.examples.zoom.
But wanted to see if there was a preferred way.

"Felix L J Mayer" <felix.mayer@objectaid.com> wrote in message
news:dm0380$5t5$1@news.eclipse.org...
> The logic example does zoom in and zoom out for diagrams, using the GEF
> actions from org.eclipse.gef.ui.actions. Is that what you mean?
>
> "Drew" <drew@acm.org> wrote in message
news:dm0133$2uu$1@news.eclipse.org...
> > if not is there a recommended way?
> >
> >
> >
>
>

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #203678 is a reply to message #203601]

Wed, 23 November 2005 14:38

Eclipse User

Originally posted by: cleversons.gmail.com

Hi,

I've recently implemented zoom on my Dra2D based application. I did it by
using a ScalableLayeredPane. This class has a method called
setScale(double newZoom) which fitted my needs. Try it and if you have any
trouble using this class, feel free to back here and ask more questions.

Regards
Cleverson

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #204119 is a reply to message #203678]

Wed, 30 November 2005 08:03

Eclipse User

What is the initialization sequence to get a ScalableLayeredPane to work in
your scenario. When i flip and SLP in for my current Pane nothing displays.
I am using a FigureCanvas as the parent.

"Cleverson Schmidt" <cleversons@gmail.com> wrote in message
news:c6344104ac90f714c37d20a8ac1f8c91$1@www.eclipse.org...
> Hi,
>
> I've recently implemented zoom on my Dra2D based application. I did it by
> using a ScalableLayeredPane. This class has a method called
> setScale(double newZoom) which fitted my needs. Try it and if you have any
> trouble using this class, feel free to back here and ask more questions.
>
> Regards
> Cleverson
>

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #204163 is a reply to message #204119]

Wed, 30 November 2005 15:50

Eclipse User

Originally posted by: cleversons.gmail.com

This is what I'm doing:

protected void createView(Composite parent) {
Canvas canvas = new Canvas(parent, SWT.CENTER);
LightweightSystem lws = new LightweightSystem(canvas);
this.scrollpane = new ScrollPane();
this.scrollpane.setVerticalScrollBarVisibility(ScrollPane.AU TOMATIC);
this.scrollpane.setHorizontalScrollBarVisibility(ScrollPane. AUTOMATIC);
this.slp = new ScalableLayeredPane();
this.scrollpane.setContents(this.slp);
lws.setContents(this.graphScrollpane);
}

Re: Is there a preferred way to add zoom to a FigureCanvas? [message #204170 is a reply to message #204163]

Wed, 30 November 2005 15:51

Eclipse User

Originally posted by: cleversons.gmail.com

ops
Replace the last line by:

lws.setContents(this.scrollpane);

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