Re: [tcltk-perl] Package Img

[Paul F. <fa...@ca...>]

Works great.  How could I dump results to a file in GIF/PNG format.
And clear pad and load an image.

Also, I am going to go back again and try and get my MIPS based CASIO
working again.  You said I should make sure I have a proper TCL/TK
directory structure.  Is there any way you could do a File listing
of your /Storage Card/ Tcl/Tk directory so I can compare.  Also,
any chance of a output of something like

for $key ( keys %ENV ) {
    print "$key $ENV{$key}\n";
    }

I would think between those 2 things should be able to fix not being
able to fix bwidget access.

On Fri, Sep 03, 2004 at 04:07:52PM -0700, Jeff Hobbs wrote:
> The following is a working translation of the Tcl doodle code.
> There are others ways to express some of this stuff, but this
> works:
> 
> #!/usr/bin/perl
> 
> use Tcl::Tk qw/:perlTk/;
> my $mw = MainWindow->new();
> my $c = $mw->Canvas(-background => "white")
>   ->pack(-fill => 'both', -expand => 1);
> 
> our $id;
> doodle($c);
> 
> MainLoop;
> 
> sub doodle {
>     my ($w, $color) = @_;
>     my $color = "black" unless defined $color;
>     Tcl::Tk::bind($w->interp, $w, '<1>',
> 		  [\&doodle_start, Tcl::Ev('%x', '%y'), $w, $color]);
>     Tcl::Tk::bind($w->interp, $w, '<B1-Motion>',
> 		  [\&doodle_move, Tcl::Ev('%x', '%y'), $w]);
> #   bind $w <1>         [list doodle'start %W %x %y $color]
> #   bind $w <B1-Motion> {doodle'move %W %x %y}
> }
> 
> sub doodle_start {
>     my ($x, $y, $w, $color) = @_;
>     $id = $w->create('line', $x, $y, $x, $y, -fill => $color);
> #   set ::_id [$w create line $x $y $x $y -fill $color]
> }
> 
> sub doodle_move {
>     my ($x, $y, $w) = @_;
>     my @coords = $w->coords($id);
>     unshift @coords, $x, $y;
>     $w->coords($id, @coords);
> #   $w coords $::_id [concat [$w coords $::_id] $x $y]
> }
> 
>   Jeff Hobbs, The Tcl Guy
>   http://www.ActiveState.com/, a division of Sophos
> 
> > -----Original Message-----
> > From: Paul Falbe [mailto:fa...@ca...] 
> > Sent: Thursday, September 02, 2004 8:52 AM
> > To: Jeff Hobbs
> > Cc: tcl...@li...
> > Subject: Re: [tcltk-perl] Package Img
> > 
> > 
> > 
> > here is my simplistic attach at bind to canvas.  I Can't get it to
> > for for "<1>".
> > 
> > #!/usr/bin/perl
> > 
> > use Tcl::Tk qw/:perlTk/;
> > my $MW = MainWindow->new();
> > my $C = $MW->Canvas(-height => '100',
> >                     -width => '100' )->pack(-fill => 'both');
> > my $f = $C->Frame->pack;
> > my $c =$f->Canvas(-width => '100',
> >                   -height => '100',
> >                   -highlightthickness => 0,
> >                   -background => "#ffffff")->pack;
> > $c->bind('canvas', '<1>', \&foo);
> > 
> > MainLoop;
> > 
> > sub foo {
> > print "foo\n";
> > }
> > 
> > On Thu, Sep 02, 2004 at 08:20:14AM -0700, Jeff Hobbs wrote:
> > > Paul Falbe wrote:
> > > 
> > > >Would you happen to have a example of a scribble program 
> > using perl Tcl/TK?
> > > 
> > > Not in Perl Tcl::Tk, but this is so simple the translation should
> > > be easy:
> > > 
> > > From http://wiki.tcl.tk/9625
> > > 
> > >  proc doodle {w {color black}} {
> > >     bind $w <1>         [list doodle'start %W %x %y $color]
> > >     bind $w <B1-Motion> {doodle'move %W %x %y}
> > >  }
> > >  proc doodle'start {w x y color} {
> > > 	set ::_id [$w create line $x $y $x $y -fill $color]
> > >  }
> > >  proc doodle'move {w x y} {
> > > 	$w coords $::_id [concat [$w coords $::_id] $x $y]
> > >  }
> > >  pack [canvas .c -bg white] -fill both -expand 1
> > >  doodle       .c
> > >  bind .c <Double-3> {%W delete all}
> > > 
> > > Anyone undertaking the exercise should post it back here for
> > > others to see the translation.
> > > 
> > > -- 
> > >     Jeff Hobbs, The Tcl Guy
> > >     http://www.ActiveState.com/, a division of Sophos
> >