CommandWidget - a terminal like widget for php-gtk

Wed, 30/05/2007 - 16:44 — Marc Quinton

The CommandWidget is nearly like a terminal and allows the user to issue commands to a shell and view the result in a GtkTextView widget.

Details

This widget can be used if you want to run some commands in the background and never use any more any printf. Or if you have some text output at console the and would like to see it in a window. CommandWidget can do that for you.

CommandWidget is a external process or a shell connected to a GtkTextview to display results. This connexion is made throught a pipe. You can read and write to this external process. This can be a (nearly) full interactive process, just like terminals (command.com for Windows). There is a special class with output only and really easy to use. It could be used to proide feedback to some management tasks using external commands (say, tar for example).

Example of use

The code below wil create a window just like the one on top of this page. You can send commands using the text entry field at the bottom of the windows, and the results are displayed on the top part (a GtkTextView widget). Text color is higlighted for commands and errors.

<?php
# create the main window
$window = new GtkWindow();

$window->set_size_request(400, 500);
$window->set_position(Gtk::WIN_POS_CENTER);
$window->connect_simple('destroy', array('Gtk', 'main_quit'));

  $window->set_title('CommandWidget demo');
  # putenv('TERM=dumb');
  $window->add(new CommandWidget('/bin/bash'));

$window->show_all();
Gtk::main();
?>

ShellCommandWidget

ShellCommandWidget is a derived class to simplify usage for text output only for external commands. This widget has no entry widget, so commands can only sent from a script. This widget creates a pipe with a standard shell waiting for commands to be executed. Here is an example of use (this is a bit similar to CommandWidget:

<?php
# create the main window
$window = new GtkWindow();

$window->set_size_request(40, 50);
$window->set_position(Gtk::WIN_POS_CENTER);
$window->connect_simple('destroy', array('Gtk', 'main_quit'));

  $window->add($shell = new ShellCommandWidget());

$window->show_all();

  $shell->exec('ls -al ; ps -aef');
  $shell->exec('ls -al /etc | grep ".conf"');
  $shell->exec('who am I');
  $shell->exec('whoami');
  $shell->exec('make love');  # echo to stderr (not working now)

Gtk::main();
?>

Full source code

See the attached sources file below

Bugs

See on source code header

Attachment	Size
gtk-command-widget.php_.txt	10.29 KB

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