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gtkscrolledwindow scrolling bottom

 
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ragnar



Joined: 01 Apr 2006
Posts: 14
PostPosted: Tue May 30, 2006 11:54 pm    Post subject: gtkscrolledwindow scrolling bottom Reply with quote
hello, i tryed in all the ways (using the gtkadjustment and setting the iter at last) to move the vertical scrolling to bottom without succed, here is the sample:

Code:
<?php

function quit() {
   gtk::main_quit();
}

$buffer = new GtkTextBuffer();
$buffer->set_text("adsfasdfdsf
asdfasdfsadfsadf
sadfadsfadsfdsaf
sadfdsafsadfsadf
sadfsadfasdfasdf
sadfdsfgdsfgsfdg
sdfgsdfgsdfgfdsg
sdfgsdfgsfdgsdfg
sfdgsdfgdsfdsfgg
sdfgdsfdsdsfgfds
sfdgdsfgfdsgfdsg
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsgg
dsfgsdfgsdfgsdff
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsfg
sdgsdgsdfgdsfgds
dsfgsdgdsfgdsfgg
sfdgsfdgsdfgsdfg");
$buffer->place_cursor($buffer->get_end_iter());
$viewer = new GtkTextView();
$viewer->set_buffer($buffer);
$scrolled_window = new GtkScrolledWindow();
$scrolled_window->set_policy("GTK_POLICY_AUTOMATIC", "GTK_POLICY_AUTOMATIC");
$scrolled_window->set_vadjustment(new GtkAdjustment(1.0, 1.0, 1.0, 0.0, 0.0, 0.0));
// $scrolled_window->set_focus_vadjustment(new GtkAdjustment(1.0, 1.0, 1.0, 0.0, 0.0, 0.0));
$scrolled_window->add($viewer);
$window = new GtkWindow();
$window->add($scrolled_window);
$window->set_size_request("300", "150");
$window->connect("destroy", "quit");
$window->show_all();

gtk::main();

?>
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cweiske



Joined: 08 Dec 2005
Posts: 454
Location: Leipzig/Germany
PostPosted: Wed May 31, 2006 7:01 am    Post subject: Reply with quote
I am just adding an iterator to the end of the text buffer and am scrolling to there:
Code:
        $buffer = $this->txtLog->get_buffer();
        $end = $buffer->get_end_iter();
        $buffer->insert($end, $strText);

        $this->txtLog->scroll_to_iter($buffer->get_end_iter(), 0.49);
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ragnar



Joined: 01 Apr 2006
Posts: 14
PostPosted: Wed May 31, 2006 9:58 am    Post subject: Reply with quote
thanks cweiske but... WTF?!?

the viewer is the one that have the control above the scroller?? Confused

BTW i added $viewer->scroll_to_iter($buffer->get_end_iter(), 0) before the gtk::main() and it just scrolls a bit down?!?!

but ok... at least is a begining...
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cweiske



Joined: 08 Dec 2005
Posts: 454
Location: Leipzig/Germany
PostPosted: Wed May 31, 2006 10:09 am    Post subject: Reply with quote
Do you still use your own adjustments? don't do this.
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ragnar



Joined: 01 Apr 2006
Posts: 14
PostPosted: Wed May 31, 2006 11:13 am    Post subject: Reply with quote
no, i commented the adjustments, take a look yourself:

Code:
<?php

function quit() {
   gtk::main_quit();
}

$buffer = new GtkTextBuffer();
$buffer->set_text("adsfasdfdsf
asdfasdfsadfsadf
sadfadsfadsfdsaf
sadfdsafsadfsadf
sadfsadfasdfasdf
sadfdsfgdsfgsfdg
sdfgsdfgsdfgfdsg
sdfgsdfgsfdgsdfg
sfdgsdfgdsfdsfgg
sdfgdsfdsdsfgfds
sfdgdsfgfdsgfdsg
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsgg
dsfgsdfgsdfgsdff
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsfg
sdgsdgsdfgdsfgds
dsfgsdgdsfgdsfgg
sfdgsfdgsdfgsdfg");
// $buffer->place_cursor($buffer->get_end_iter());
$viewer = new GtkTextView();
$viewer->set_buffer($buffer);
$scrolled_window = new GtkScrolledWindow();
$scrolled_window->set_policy("GTK_POLICY_AUTOMATIC", "GTK_POLICY_AUTOMATIC");
// $scrolled_window->set_vadjustment(new GtkAdjustment(1.0, 1.0, 1.0, 0.0, 0.0, 0.0));
// $scrolled_window->set_focus_vadjustment(new GtkAdjustment(1.0, 1.0, 1.0, 0.0, 0.0, 0.0));
$scrolled_window->add($viewer);
$window = new GtkWindow();
$window->add($scrolled_window);
$window->set_size_request("300", "150");
$window->connect("destroy", "quit");
$window->show_all();

$viewer->scroll_to_iter($buffer->get_end_iter(), 0);

gtk::main();

?>
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ron_t



Joined: 11 Dec 2005
Posts: 78
Location: Gatineau, Quebec
PostPosted: Wed May 31, 2006 12:47 pm    Post subject: Reply with quote
ragnar wrote:
no, i commented the adjustments, take a look yourself:

Code:


$viewer->scroll_to_iter($buffer->get_end_iter(), 0);


?>


Change this line to read:

Code:

$viewer->scroll_to_iter($buffer->get_end_iter(), 0, true);


-Ron T.
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ragnar



Joined: 01 Apr 2006
Posts: 14
PostPosted: Thu Jun 01, 2006 11:00 am    Post subject: Reply with quote
thanks ron_t but it still doesnt work Sad
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ron_t



Joined: 11 Dec 2005
Posts: 78
Location: Gatineau, Quebec
PostPosted: Thu Jun 01, 2006 1:22 pm    Post subject: Reply with quote
ragnar wrote:
thanks ron_t but it still doesnt work Sad


Strange. I tested it here and it worked fine. Still does (I just ran it again.)

Are you using the latest php_gtk2.dll (v. 1.2.2)? If not, take a look under Announcements in this forum where Christien gives instructions for downloading/installing it.

-Ron T.
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scott



Joined: 16 Feb 2006
Posts: 35
PostPosted: Thu Jun 01, 2006 2:54 pm    Post subject: Reply with quote
From the Gtk+ docs:
Quote:
NOTE: This function uses the currently-computed height of the lines in the text buffer. Note that line heights are computed in an idle handler; so this function may not have the desired effect if it's called before the height computations.


Since you are calling it before the main loop starts, the height calculations aren't done quite yet. You need to wait until the calculations are done. In the example below, I did this by connecting a signal handler to the "select-all" signal. Run the example and then hit 'CTRL-A'. The view will scroll to the bottom. I realize that forcing the user to select all the text just to get the view to scroll is not the best solution, but maybe you can use this to point you in the right direction.

Code:
<?php
function scroll($view, $buffer)
{
        $view->scroll_to_iter($buffer->get_end_iter(), 0);
}

$buffer = new GtkTextBuffer();
$buffer->set_text('adsfasdfdsf
asdfasdfsadfsadf
sadfadsfadsfdsaf
sadfdsafsadfsadf
sadfsadfasdfasdf
sadfdsfgdsfgsfdg
sdfgsdfgsdfgfdsg
sdfgsdfgsfdgsdfg
sfdgsdfgdsfdsfgg
sdfgdsfdsdsfgfds
sfdgdsfgfdsgfdsg
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsgg
dsfgsdfgsdfgsdff
sdfgsdfgdsfgdsfg
sdfgsfdgdsfgdsfg
sdgsdgsdfgdsfgds
dsfgsdgdsfgdsfgg
sfdgsfdgsdfgsdfg');

$viewer = new GtkTextView();
$viewer->set_buffer($buffer);
$scrolled_window = new GtkScrolledWindow();
$scrolled_window->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

$scrolled_window->add($viewer);
$window = new GtkWindow();
$window->add($scrolled_window);
$window->set_size_request('150', '150');
$window->connect_simple('destroy', array('Gtk', 'main_quit'));
$window->show_all();

$viewer->connect_simple('select-all', 'scroll', $viewer, $buffer);

gtk::main();
?>


P.S. Note some of the other changes that I made. (set_policy and connecting to the destroy signal)
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cweiske



Joined: 08 Dec 2005
Posts: 454
Location: Leipzig/Germany
PostPosted: Fri Jun 02, 2006 12:02 am    Post subject: Reply with quote
Classic situation for
Code:
while(Gtk::events_pending()) { Gtk::main_iteration();}
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ragnar



Joined: 01 Apr 2006
Posts: 14
PostPosted: Fri Jun 02, 2006 10:40 am    Post subject: Reply with quote
thanks a lot guys!!!!!! at last it works perfectly!!!!

i wanted to keep in secret until the basic things r done, but this code is for a tool im developing for manage Mysql server, and this is preciselly for emulating the console, u can take a look at [url]sourceforge.net/projects/lirio[/url] and im sorry but right now is only in spanish, soon ill look for translators and ull have it also in many languages

cheers
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