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Problem We have displayed a 2D array in a table with borders in Part 3
Now we would like to center the table as shown below:
Solution
- Stuff two GtkHBox, one on the left of the table, and the other on the right.
- PHP-GTK will "auto-expand" both GtkHBox, indirectly centering the table.
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| <?php
$window = new GtkWindow();
$window->set_size_request(400, 200);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Display 2D Array in Table - Part 4\n (with borders and centered)");
$title->modify_font(new PangoFontDescription("Times New Roman Italic 10"));
$title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff"));
$title->set_size_request(-1, 40);
$vbox->pack_start($title, 0, 0);
$vbox->pack_start($hbox = new GtkHBox()); // note 1
$hbox->pack_start(new GtkHBox()); // note 2
$hbox->pack_start($table = new GtkTable(), 0, 0); // note 3
$hbox->pack_start(new GtkHBox()); // note 4
$data = array(
array('', 'header1', 'header2', 'header3'),
array('row0', 1, 2, 3),
array('row1', 4, 5, 6),
array('row2', 7, 8, 9),
array('row3', 10, 11, 12),
array('row4', 13, 14, 15));
display_table ($table, $data);
function display_table($table, $a) {
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Explanation Please refer to:
- Part 1 which explains how to display a 2D array in a table.
- Part 2 which explains how to add borders to table.
- Part 3 which explains how to add borders to table, and display the cells in a tightly packed manner.
What's new here in Part 4:
- Create a GtkHBox to hold the following 3 widgets.
- Stuff one GtkHBox which acts as "auto-expand" buffer on the left of the table.
- Put the table in the middle.
- Stuff one more "auto-expand" buffer on the right of the table.
Try to change the window size. You will see that the two "auto-expand" buffers will always "force" the table to stay at the center.
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