gtk2hs for ghc 6.8.2

Dear all,

I am currently running GHC 6.8.2 and so cannot currently install the 
latest version of Gtk2hs. Does anyone know when a version that works 
with GHC 6.8.2 will be available?

Thanks,

Eric M.

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Re: gtk2hs for ghc 6.8.2

Hi Eric,

Eric wrote:
> Dear all,
> 
> I am currently running GHC 6.8.2 and so cannot currently install the 
> latest version of Gtk2hs. Does anyone know when a version that works 
> with GHC 6.8.2 will be available?
> 

Soon.  We are waiting for ghc 6.8.3 to be released, after which a 
version compatible with both 6.8.2 and 6.8.3 will be released. For the 
time being, you can use the development tree at 
http://code.haskell.org/gtk2hs which will build under 6.8.2.

Pete

> Thanks,
> 
> Eric M.
> 
> 
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Re: gtk2hs for ghc 6.8.2

On Mon, 2008-06-02 at 19:17 +0100, Eric wrote:
> Dear all,
> 
> I am currently running GHC 6.8.2 and so cannot currently install the 
> latest version of Gtk2hs. Does anyone know when a version that works 
> with GHC 6.8.2 will be available?

If you're talking about building from source then the current release is
compatible with ghc-6.8.x (and in particular works with 6.8.2).

If you're talking about binary builds for windows with installers then I
have one built with/for ghc-6.8.2:
http://haskell.org/~duncan/gtk2hs/gtk2hs-0.9.12.1.exe

As Gavin says there will also be a new release soon along with a windows
installer for ghc-6.8.3.

Duncan

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Re: gtk2hs for ghc 6.8.2

Thank you! I've installed it and everything's working.

Eric

Duncan Coutts wrote:
> On Mon, 2008-06-02 at 19:17 +0100, Eric wrote:
>   
>> Dear all,
>>
>> I am currently running GHC 6.8.2 and so cannot currently install the 
>> latest version of Gtk2hs. Does anyone know when a version that works 
>> with GHC 6.8.2 will be available?
>>     
>
> If you're talking about building from source then the current release is
> compatible with ghc-6.8.x (and in particular works with 6.8.2).
>
> If you're talking about binary builds for windows with installers then I
> have one built with/for ghc-6.8.2:
> http://haskell.org/~duncan/gtk2hs/gtk2hs-0.9.12.1.exe
>
> As Gavin says there will also be a new release soon along with a windows
> installer for ghc-6.8.3.
>
> Duncan
>
>
>
>   

getting the listStore out of tree view

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Re: getting the listStore out of tree view

On Sat, 2008-06-14 at 16:44 -0700, Hristo Asenov wrote:
> Hello, I am new to gtk and haskell. I have already gotten to the point
> of filling a a tree view with objects, but now need to get the
> contents of a row when I click on it. In other words, everytime I
> right-click on a row, it is highlighted and a menu pops up, then when
> I select that menu, I want to access the list under which I have
> selected. I have found a tutorial for C in
> http://scentric.net/tutorial/treeview-tutorial.html and says to use
> gtk_tree_model_get but I haven't been able to find that function. The
> closest I have found is treeModelGetValue, which returns a
> GenericValue, but I don't think I'm supposed to work with it. It also
> asks for an Int, which is a column num, but when I try to do it, it
> says that it is invalid. I can get a reference both to treePath and
> treeIter, but I can't do anything with them. Could someone let me know
> what function I need to use?

The answer is to keep a reference to the underlying model rather than
trying to recover it using treeViewGetModel. The reason is that
treeViewGetModel can only get you a generic TreeModel and not the
specific type ListStore etc. Yes it is possible to get info out of a
TreeModel but as you see it is not a convenient typed interface and has
to go via the variant type GenericValue.

So when you construct the list store, keep hold of it. Set it as the
model for the tree view to use, but keep the list store too so that you
can use the convenient list store api.

Duncan

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Re: getting the listStore out of tree view

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unicode in fileChooserSetFilename/fileChooserGetFilename

Hello all

functions fileChooserSetFilename and fileChooserGetFilename use UTF-8
filename encoding instead of built-in GHC Unicode support

reported on mingw ghc 6.6.1 with gtk2hs 0.9.11.3 (last official release)

--

-- 
Best regards,
 Bulat                          mailto:Bulat.Ziganshin <at> gmail.com

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Re: unicode in fileChooserSetFilename/fileChooserGetFilename

On Thu, 2008-06-19 at 21:01 +0400, Bulat Ziganshin wrote:
> Hello all
> 
> functions fileChooserSetFilename and fileChooserGetFilename use UTF-8
> filename encoding instead of built-in GHC Unicode support
> 
> reported on mingw ghc 6.6.1 with gtk2hs 0.9.11.3 (last official release)

Good point.

Here's a patch. I've also sent a darcs patch to the -devel list.

Duncan

Thu Jun 19 21:51:21 BST 2008  Duncan Coutts <duncan <at> haskell.org>
  * Use UTF8 filenames on windows for file selector
  On Windows, gtk_file_chooser_set/get_filename always use UTF8
  so we should encode/decode as such. Reported by Bulat Ziganshin.
diff -rN -u old-gtk2hs/gtk/Graphics/UI/Gtk/Selectors/FileChooser.chs.pp
new-gtk2hs/gtk/Graphics/UI/Gtk/Selectors/FileChooser.chs.pp
--- old-gtk2hs/gtk/Graphics/UI/Gtk/Selectors/FileChooser.chs.pp
2008-06-19 22:03:27.000000000 +0100
+++ new-gtk2hs/gtk/Graphics/UI/Gtk/Selectors/FileChooser.chs.pp
2008-06-19 22:03:27.000000000 +0100
 <at>  <at>  -364,11 +364,13  <at>  <at> 
 fileChooserGetFilename self =
 #if defined (WIN32) && GTK_CHECK_VERSION(2,6,0)
   {# call gtk_file_chooser_get_filename_utf8 #}
+    (toFileChooser self)
+ >>= maybePeek readUTF8String
 #else
   {# call gtk_file_chooser_get_filename #}
-#endif
     (toFileChooser self)
   >>= maybePeek readCString
+#endif

 -- | Sets  <at> filename <at>  as the current filename for the file chooser, by
changing
 -- to the file's parent folder and actually selecting the file in list.
If the
 <at>  <at>  -403,10 +405,11  <at>  <at> 
              -- file was selected successfully,  <at> False <at>  otherwise.
 fileChooserSetFilename self filename =
   liftM toBool $
-  withCString filename $ \filenamePtr ->
 #if defined (WIN32) && GTK_CHECK_VERSION(2,6,0)
+  withUTF8String filename $ \filenamePtr ->
   {# call gtk_file_chooser_set_filename_utf8 #}
 #else
+  withCString filename $ \filenamePtr ->
   {# call gtk_file_chooser_set_filename #}
 #endif
     (toFileChooser self)

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Mouse and Keyboard events with OpenGL canvas.

Can anyone offer any guidance on how to register handlers for  mouse and 
keyboard events with the OpenGL canvas. Registering handlers as I did 
with vanilla OpenGL:

keyboardMouseCallback $= Just ....

leads to a message "getCallbackID: no current window" and the program to 
terminate. I have tried

canvas <- GtkGL.glDrawingAreaNew glconfig
Gtk.onKeyPress canvas handleKeyEventGtk

No error occurs but neither does any event handling. I have also tried 
to use the OpenGL style but wrap glDrawableGLBegin GLEnd

GtkGL.glDrawableGLBegin glWin glContext
keyboardMouseCallback $= Just ....
GtkGL.glDrawableGLEnd glWin

but still get the first call back error. This area doesn't seem to be 
covered by any of the sample programs or documentation that I have 
looked over.

Cheers

Mark

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