Re: [perl-win32-gui-users] SOLUTION --> Newlines disappearing inrichedit(unicode-content)

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Sory, some corrections of the last post (there was also a bug in the GetText-sub):

You need the pragmas:
use utf8; # If you want to write unicode in your perl-file
use use Encode qw/decode/;

If you want to define constants (you only need them, if you use the commented out lines in the function GetText, below):
sub WM_USER() {1024};
sub GT_DEFAULT() {0};
sub EM_GETTEXTEX() {+WM_USER+94};

Here is the Get-function:
sub GetText # gets unicode-textout of a richedit and returns it an string
{
my ($window, $richedit) = @_; # [0] = window-object, [1] = name oft the richedit-field
   my $maxlen = 1024;
   my $buffer = " " x $maxlen;
   my $flags = 0; # alternatively You can define the constant GT_DEFAULT in the header of the program --> 'sub GT_DEFAULT() {0};'
  # my $flags = GT_DEFAULT; # defined with a constant
   my $codepage = 1200;
   my $struct = pack("LLIpp", $maxlen, $flags, $codepage, undef, undef);
   my $address = pack("P20", $struct);
   my $wparam = unpack("L", $address);
   my $numTchar = $window -> $richedit -> SendMessage(1118, $wparam, $buffer); # Alternatively You can define the message as constants WM_USER and EM_GETTEXTEX in the header of the program --> 'sub WM_USER() {1024};' and 'sub EM_GETTEXTEX() {+WM_USER+94};'
  #my $numTchar = $window -> $richedit -> SendMessage(EM_GETTEXTEX, $wparam, $buffer); # defined with constants
   my $octets = substr($buffer, 0, ($numTchar*2));
   my $text = decode("UCS-2LE", $octets);
   return($text); # Returns a unicode-string
}

And the Set-function:
sub SetText # prepares unicode-strings for the Text()-method of the richedit
{
my @input = @_;
my $rtf_prolog = '{\rtf1'; # Minimal-RTF-Header. Define your own RTF-Header
according the RTF-specs
$input[0] =~ s/([^\x00-\x7F])/'\uc1\u'.((ord $1 < 32768)?ord $1 :
ord($1)-65536).'?'/eg; # Converting unicode into 'escaped' RTF-format
$input[0] =~ s/(\r\n)/\\par\r\n/g; # Converting common newlines (\r\n) into
RTF-newlines (\par\r\n)
return $rtf_prolog . $input[0] . '}'; # Returns the string as RTF
}

So if you want so get the text of the field, use:
$SAVE = &GetText($window,'richedit_field');

And to set it back, use:
$window -> richdit_field -> Text(SetText($SAVE)); 

Regards,
Raphael

On Do 06/11/08 22:00 , Raphael Stoeckli <win...@ra...> wrote:

> Hi Octavian and Glenn
> The thing with the 'par' was the point.
> The RTF-format is documented here:
> http://msdn.microsoft.com/en-us/library/aa140283(office.10).aspx 
> i had to turn the 'rn' into '\parrn'.
> So here is my solution to handle multiline-unicode-text with
> richedit-fields.
> You need the pragmas:
> use utf8; #  'sub GT_DEFAULT() {0};'
> #my $flags = $flags = GT_DEFAULT; # defined with a constant
> my $codepage = 1200;
> my $struct = pack("LLIpp", $maxlen, $flags, $codepage, undef,
> undef);
> my $address = pack("P20", $struct);
> my $wparam = unpack("L", $address);
> my $numTchar = $window -> $richedit -> SendMessage(1118, $wparam,
> $buffer); #
> Alternatively You can define the message as constants WM_USER and
> EM_GETTEXTEX in
> the header of the program --> 'sub WM_USER() {1024};' and 'sub
> EM_GETTEXTEX()
> {+WM_USER+94};'
> # my $numTchar = $WIN -> re -> SendMessage(qw(EM_GETTEXTEX
> {+WM_USER()
> {1024}+94}), $wparam, $buffer); # defined with constants
> my $octets = substr($buffer, 0, ($numTchar*2));
> my $text = decode("UCS-2LE", $octets);
> return($text); # Returns a unicode-string
> }
> And the Set-function:
> sub SetText # prepares unicode-strings for the Text()-method of the
> richedit
> {
> my @input = @_;
> my $rtf_prolog  = '{rtf1'; # Minimal-RTF-Header. Define Your own
> RTF-Header
> according the RTF-specs
> $input[0] =~ s/([^x00-x7F])/'uc1u'.((ord $1 < 32768)?ord $1 :
> ord($1)-65536).'?'/eg; # Converting unicode into 'escaped'
> RTF-format 
> $input[0] =~ s/(rn)/\parrn/g; # Converting common newlines (rn) into
> RTF-newlines (parrn)
> return $rtf_prolog . $input[0] . '}'; # Returns the string as RTF
> }
> So if you want so get the text of the field, use:
> $SAVE = &GetText($window,'richedit_field');
> And to set it back, use:
> $window -> richdit_field -> Text(SetText($SAVE)); 
> In this example, I made the function GetText variable, if you have
> more than one
> window or richedit-field.
> Honestly, I tested this not to much. Newlines, tabs and spaces works
> well. But i
> don't know what happens, if there is something totally unexpected in
> the richedit.
> Feel free to ask, if anyone needs examples or further information to
> the
> functions above.
> Again, thanks to all.
> Regards,
> Raphael
> On Wed 05/11/08 22:49 , "Octavian Rasnita"  sent:
> > If I remember well, you need to use
> > par
> > in the RTF document for specifying a new line.
> > 
> > Find and read the RTF specifications. It will help you to do more
> other
> > things.
> > 
> > Octavian
> > 
> > ----- Original Message ----- 
> > From: "Raphael Stoeckli"  rabanti.ch>To: Sent: Wednesday,
> November 05, 2008 10:05 PM
> > Subject: [perl-win32-gui-users] Newlines disappearing in 
> > richedit(unicode-content)
> > 
> > 
> > > Hi @ all
> > >
> > > I&rsquo;m working on an program, that can handle
> > Unicode-text in > richedit-fields.
> > > The fields sets and gets the text using some
> > modifications of the > richedit-field. These mods are also from
> this
> > mailinglist.>
> > > The problem is, that Newlines (rn) in strings
> > (whether if it&rsquo;s ASCII or > Unicode) seems to be wiped, when
> I put the
> > string into the modified > richedit-field.
> > >
> > > I wrote a demo/test-program to show this
> > behavior. You can get it here: >
> http://www.rabanti.ch/storage/rtf_utf_test.pl or
> > > http://www.rabanti.ch/storage/rtf_utf_test.zip (if
> > there is a problem with > the encoding, while downloading)
> > > Anyhow I try to describe it abbreviated in this
> > post.>
> > > For saving Unicode-content into a string, I use
> > these functions:> -------------------------------------
> > > sub WM_USER() {1024};
> > > sub EM_GETTEXTEX() {+WM_USER+94};
> > > sub GT_DEFAULT() {0};
> > >
> > > sub get_unicode # takes the text out of the
> > richedit-field> {
> > >   my $maxlen = 1024;
> > >   my $buffer = " " x
> > $maxlen;>   my $flags = GT_DEFAULT;
> > >   my $codepage = 1200;
> > >   my $struct = pack("LLIpp", $maxlen,
> > $flags, $codepage, undef, undef);>   my $address = pack("P20",
> > $struct);>   my $wparam = unpack("L",
> > $address);>   my $numTchar = $WIN -> re ->
> > SendMessage(EM_GETTEXTEX, $wparam, > $buffer); # re is the
> richedit-field, $WIN the
> > window-object>   my $octets = substr($buffer, 0,
> > ($numTchar*2));>   my $text = decode("UCS-2LE",
> > $octets);>   return($text);
> > > }
> > > -------------------------------------
> > >
> > > This is the richedit-field
> > (simplified):>
> > > $RE = $WIN -> AddRichEdit(
> > >    -name => 're',
> > >    -size => [240, 80],
> > >    -pushstyle => WS_CHILD | WS_VISIBLE |
> > WS_VSCROLL | WS_HSCROLL | ES_LEFT > | ES_MULTILINE,
> > > );
> > >
> > > -------------------------------------
> > >
> > > I get the text out of the field like
> > that:> $SAVE = &get_unicode;
> > >
> > > When I try to write the string back into the
> > field, I use this function > and definition:
> > > -------------------------------------
> > > our $RTF_PROLOG = '{rtf1';
> > >
> > > sub string2rtf # string-converter for
> > RTF-handling> {
> > > my @input = @_;
> > >    $input[0] =~ s/([^x00-x7F])/'uc1u'.((ord
> > $1 < 32768)?ord $1 : > ord($1)-65536).'?'/eg;
> > >    return $input[0];
> > > }
> > > -------------------------------------
> > >
> > > I try to set the text like that:
> > > $WIN -> re -> Text($RTF_PROLOG .
> > string2rtf($SAVE) . '}');>
> > > The result is that all stored lines (in the
> > string) appear on one single > line, without newlines.
> > > The operation >> $input[0] =~
> > s/([^x00-x7F])/'uc1u'.((ord $1 < > 32768)?ord $1 :
> ord($1)-65536).'?'/eg;  seems to wipe the newlines. I > checked the
> converted strings. The newlines
> > (rn) are still there, > nonetheless the richedit-field do not
> recognize
> > them. If I use $WIN -> > re -> Text($SAVE), the Newlines are
> > appearing, but the unicode is broken.>
> > > I think it's something about a sent
> > (respectively not sent) system-signal. > But I have at this time
> no plan about
> these
> > things.> I tested it on a Win2K (SP4)- System and a XP
> > (SP3)-System with win32::GUI > v1.06 and Activestate Perl
> v5.8.6.811
> > >
> > > Can someone explain me this behavior, and get me
> > a hint, how to correct > this?
> > >
> > > Many thanks in advance!... and much sorry for
> > the bad English.>
> > > Regards,
> > > Raphael
> > >
> > >
> > >
> >
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