dynamically resizing a window

[Eric Hutton]

Is there a way to dynamically resize a window in response to dynamically added content? 

Take the "dynamic.rb" example from Lyle's Create Lean and Mean GUIs book, after hitting the add row button a number of times, the added rows extend beyond the bottom of the window.  Is there a way to get the window to try and resize itself according to the dynamically added content?  I messed around with .layout and .repaint, but to no effect.

Regards,
Eric.

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[Meinrad Recheis]

On Tue, Sep 15, 2009 at 10:37 PM, Eric Hutton <eric.hutton@...> wrote:

Is there a way to dynamically resize a window in response to dynamically added content? 

Take the "dynamic.rb" example from Lyle's Create Lean and Mean GUIs book, after hitting the add row button a number of times, the added rows extend beyond the bottom of the window.  Is there a way to get the window to try and resize itself according to the dynamically added content?  I messed around with .layout and .repaint, but to no effect.

Regards,
Eric.

here is a small snippet that should do the trick for most layouts:

# Free packing extension for fxruby. Copyright (c) 2006, henon <meinrad.recheis@...>
module Fox::Packing
    attr_accessor :dont_pack
       
    def pack
        w, h = self.width, self.height
        w, h = get_packedsize unless @dont_pack
       
        rw = self.getRoot.width - 40
        rh = self.getRoot.height - 80               
       
        w = rw if w > rw
        h = rh if h > rh
       
        self.resize(w, h)       
    end
   
    def get_packedsize
        return self.maxChildWidth + xpadding, self.maxChildHeight + ypadding
    end
    def xpadding
        4
    end
    def ypadding
        4
    end
end

class Fox::FXTopWindow
    include Fox::Packing
    def xpadding
        self.padLeft+self.padRight
    end
    def ypadding
        self.padTop+self.padBottom
    end
end
class Fox::FXPopup
    include Fox::Packing
end

class Fox::FXScrollWindow
    def getDefaultWidth
        self.maxChildWidth
    end
   
    def getDefaultHeight
        self.maxChildHeight
    end   
end

require this code snippet and call #pack on your top level window to resize it to its content. it is provided AS IS, WITHOUT ANY WARRANTY ... blah bla :)
this is pasted out from one of my older applicatios, hope it does still work.
hth,
-- henon


Git# --> Git for .NET

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[Jeroen van der Zijp]

On Tuesday 15 September 2009, Eric Hutton wrote:
> Is there a way to dynamically resize a window in response to dynamically
> added content?
>
> Take the "dynamic.rb" example from Lyle's Create Lean and Mean GUIs book,
> after hitting the add row button a number of times, the added rows extend
> beyond the bottom of the window.  Is there a way to get the window to try
> and resize itself according to the dynamically added content?  I messed
> around with .layout and .repaint, but to no effect.

The steps should be roughly as follows:


        1) change the contents of the window (dialog box or toplevel window).

        2) compute the new size, based on layout parameters and sizes of the
           widgets; use the topwindow's getDefaultWidth() and getDefaultHeight()
           See footnote.

        3) Change the toplevel window's size according to the values computed
           in step 2, calling resize() on the topwindow.  Note, the borders will
           be added by the interface between FOX and your windowmanager.


The resize() will lead to a new call to layout(), since the window will have changed
size.  This will also result in a bunch of repaint messages which your program must
be allowed to handle before the window will be properly drawn to the screen.


Hope this helps,


                        - Jeroen


Footnote: the size computed by getDefaultWidth() and getDefaultHeight() will be the
minimum fit of the window around its contents.
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[Eric Hutton]

Thanks guys!  Both good tips. I figured it would involve manually determining the size of the new window and then resizing it, I was just hoping there might already be some automatic procedure for doing so.  I'll see what I can do with this pack routine...

On Tue, Sep 15, 2009 at 5:18 PM, Meinrad Recheis <meinrad.recheis@...> wrote:

On Tue, Sep 15, 2009 at 10:37 PM, Eric Hutton <eric.hutton@...> wrote:

Is there a way to dynamically resize a window in response to dynamically added content? 

Take the "dynamic.rb" example from Lyle's Create Lean and Mean GUIs book, after hitting the add row button a number of times, the added rows extend beyond the bottom of the window.  Is there a way to get the window to try and resize itself according to the dynamically added content?  I messed around with .layout and .repaint, but to no effect.

Regards,
Eric.

here is a small snippet that should do the trick for most layouts:

# Free packing extension for fxruby. Copyright (c) 2006, henon <meinrad.recheis@...>
module Fox::Packing
    attr_accessor :dont_pack
       
    def pack
        w, h = self.width, self.height
        w, h = get_packedsize unless @dont_pack
       
        rw = self.getRoot.width - 40
        rh = self.getRoot.height - 80               
       
        w = rw if w > rw
        h = rh if h > rh
       
        self.resize(w, h)       
    end
   
    def get_packedsize
        return self.maxChildWidth + xpadding, self.maxChildHeight + ypadding
    end
    def xpadding
        4
    end
    def ypadding
        4
    end
end

class Fox::FXTopWindow
    include Fox::Packing
    def xpadding
        self.padLeft+self.padRight
    end
    def ypadding
        self.padTop+self.padBottom
    end
end
class Fox::FXPopup
    include Fox::Packing
end

class Fox::FXScrollWindow
    def getDefaultWidth
        self.maxChildWidth
    end
   
    def getDefaultHeight
        self.maxChildHeight
    end   
end

require this code snippet and call #pack on your top level window to resize it to its content. it is provided AS IS, WITHOUT ANY WARRANTY ... blah bla :)
this is pasted out from one of my older applicatios, hope it does still work.
hth,
-- henon


Git# --> Git for .NET

_______________________________________________
fxruby-users mailing list
fxruby-users@...
http://rubyforge.org/mailman/listinfo/fxruby-users

_______________________________________________
fxruby-users mailing list
fxruby-users@...
http://rubyforge.org/mailman/listinfo/fxruby-users