Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
perldoc Gnome2::Canvas::index

The Gnome2::Canvas is pretty basic. There are no such thing as tags( like in Tk). In Tk you can say something like "find all items with tag equal to whatever". In Gnome2::Canvas, you can make your own like

my @lines; my $line2= Gnome2::Canvas::Item->new ($root, 'Gnome2::Canvas::Line', points => $points, fill_color => "red", width_units => 8.0, join_style => 'miter', ); $line2->{'tag'} = 'red', # maybe an array_ref for multiple tags? push @lines, $line2; foreach my $line (@lines){ if( $line->{'tag'} eq 'red' ){print "$line is red\n"} }
Also see Gtk2 linked scrolled Canvases in table , saving a Gtk2 canvas which is bigger than the window, Gnome2::Canvas Scribble with Image, and Gtk2 Scrolling Text for some previous examples I've posted.

I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re: Gnome2 Canvas Items by zentara
in thread Gnome2 Canvas Items by renegadex

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others admiring the Monastery: (7)
As of 2024-03-28 11:34 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found