Re: [wxhaskell-devel] wxString handling broken when using wx 2.9
On 20 September 2011 20:57, Dave Tapley duked...@gmail.com wrote: Hi Eric, Am I correct in recalling that you did some of the work to get wxHaskell supporting unicode? I've using wxHaskell with wxWidgets 2.9.2 (the latest development release) and it seems that any attempt to get back a wxString in Haskell code will result in a Prelude.chr: bad argument: crash at run time; I've verified that the same code works correctly with wxWidgets 2.8. A good example is ./samples/wx/ListCtrl.hs, you will get the crash when you click on an item in the list. Now the good news is that this is almost certainly related to the changes to unicode handling in wxWidgets: http://docs.wxwidgets.org/2.9/overview_changes_since28.html But I thought I'd send out a message asking for a sanity check before I get too busy working on fixing it. Dave, Good news everyone! This is fixed, at least for GTK2 with wx-2.9, I don't know if it breaks building against previous versions, perhaps someone would like to find out? Dave, Patch attached. fix_for_prelude_chr_error Description: Binary data -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1___ wxhaskell-devel mailing list wxhaskell-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-devel
Re: [wxhaskell-devel] wxString handling broken when using wx 2.9
On Tue, Sep 20, 2011 at 20:57:37 +0100, Dave Tapley wrote: Am I correct in recalling that you did some of the work to get wxHaskell supporting unicode? That's right. Mostly swapping char with w_char Now the good news is that this is almost certainly related to the changes to unicode handling in wxWidgets: http://docs.wxwidgets.org/2.9/overview_changes_since28.html Ouch, seems to make sense. Was dimly aware that wxWidgets 3.0 would be changing the string type but I guess I let wishful thinking fool me into thinking it didn't affect wxWidgets 2.9 (not really paying enough attention to the numbering) -- Eric Kow http://erickow.com pgpfmCMLeZJUY.pgp Description: PGP signature -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1___ wxhaskell-devel mailing list wxhaskell-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-devel
Re: [wxhaskell-devel] wxString handling broken when using wx 2.9
I have a probably stupid question, but I'll fire it anyways: Would it make sense to have future versions of wxHaskell support Text instead of String ? David. 2011/9/21 eric.kow eric@gmail.com: On Tue, Sep 20, 2011 at 20:57:37 +0100, Dave Tapley wrote: Am I correct in recalling that you did some of the work to get wxHaskell supporting unicode? That's right. Mostly swapping char with w_char Now the good news is that this is almost certainly related to the changes to unicode handling in wxWidgets: http://docs.wxwidgets.org/2.9/overview_changes_since28.html Ouch, seems to make sense. Was dimly aware that wxWidgets 3.0 would be changing the string type but I guess I let wishful thinking fool me into thinking it didn't affect wxWidgets 2.9 (not really paying enough attention to the numbering) -- Eric Kow http://erickow.com -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ wxhaskell-devel mailing list wxhaskell-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-devel -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ wxhaskell-devel mailing list wxhaskell-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-devel
Re: [wxhaskell-devel] wxString handling broken when using wx 2.9
2011/9/21 Eric Y. Kow eric@gmail.com: On Wed, Sep 21, 2011 at 16:36:55 +0200, David Virebayre wrote: I have a probably stupid question, but I'll fire it anyways: Hmm, worth a thought. Would it make sense to have future versions of wxHaskell support Text instead of String ? Do GUIs typically manipulate large text fields for which this would make sense? Is String a source of overhead for any other reason (ie. lots of text fields)? Do we care if we just of lots of small ones? Is this a matter of convenience for people moving to using a lot more Text in modern Haskell? I have no good answer to those questions. But, if I didn't read too fast, I think wxwidgets uses UTF-16, which is also what is used in Text. I've made a little program and used Text to process Textual data which I want to display in a GUI, so converting to String puts lots of unwanted T.unpack here and there. This is annoying enough that I wish I didn't use Text to begin with ! I think it's bad because - Text is in the Haskell Platform, so it's the blessed way of dealing with text data - Takes less memory, faster, etc - Not using it would slow its adoption Since wxHaskell or wxWidgets probably has to convert that back to UTF-16 at some point... I'm probably thinking way ahead of time with this idea. David. -- Eric Kow http://erickow.com -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ wxhaskell-devel mailing list wxhaskell-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-devel
