From: Victor Reyes <victor.reyes@...>
Date: 2008-04-01T22:20:49+09:00
Subject: Re: Displaying gruff graphs

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I found the answer to my last question. WxRuby runs under MS Windows, Linux
and OS X.

Victor

On Tue, Apr 1, 2008 at 8:44 AM, Victor Reyes <victor.reyes@gmail.com> wrote:

> Alex,
>
> I do truly appreciate your time to explain this new stuff to me.
> I will try to digest the info you provided me and also I will try to
> gather
> more info from the wx doc.
> Do you know if wx runs under AIX (IBM UNIX)?
>
> Thank you
>
> Victor
>
> On Mon, Mar 31, 2008 at 5:10 PM, Alex Fenton <alex@deleteme.pressure.to>
> wrote:
>
>  > Victor Reyes wrote:
> >
> > > I finally got this working with wx by hard-coding the file path.
> >
> > That other first error looks like an ImageMagick problem. Sorry I can't
> > help with that as I'm too lazy to install it; I just used wxRuby's own
> > image file writing features to test it out quickly.
> >
> > > The graphs
> > > (pie) is displayed, but now I have a small glitch, of course.
> > > The frame is a about 1/4 of what it needs to be, and so I have to
> resize
> > it
> > > with the mouse.
> > > Perhaps I need to make the frame where the graph is displayed a bit
> > larger.
> > > Is there anyway to make the size of the frame "dynamic" based on the
> > size of
> > > the image to be displayed?
> >
> > You can either constrain the frame to be a particular size, and prevent
> > it being resized, or dynamically resize the graph image as the frame is
> > resized by the user's use of the mouse.
> >
> > For the former, when you call super in the GruffFrame constructor, add
> > the argument :style => Wx::DEFAULT_FRAME_STYLE ^ Wx::RESIZE_BORDER
> >
> > (i.e. use the default frame style, minus the mouse-draggable resize
> > handle in the corner)
> >
> > Then in the GruffFrame#initialize method, set the Frame's client_size to
> > the size you want the image, e.g.
> >
> > self.client_size = [480, 320]
> >
> > (The "client size" is the space within the Frame that is available for
> > drawing on - its total pixel size minus the window borders, title bar
> > etc. This way of setting the frame size will given consistent results
> > across Linux, Windows and OS X)
> >
> > If you want the latter, a resizeable frame, on each refresh, tell Gruff
> >  what size of PNG you want. According to the docs, you can pass the
> > Gruff Graph constructor a size as a string. So call new like this:
> >
> > graph = Gruff::Lines.new("#{client_size.width}x#{client_size.height}")
> >
> > If you go down this route, you'll probably also want to refresh the
> > graph if the Frame is resized; use evt_size in the frame constructor for
> > this:
> >
> > evt_size { | evt | refresh; evt.skip }
> >
> > > In the mean time I will look in the wx documentation.
> >
> > I expect you've found http://wxruby.rubyforge.org/doc/
> >
> > If you've got further questions about wxRuby, there's a friendly mailing
> > list which is a better place than c.l.r. for specifically wxRuby
> > questions: http://rubyforge.org/mail/?group_id=35
> >
> > alex
> >
> >
>

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