Sample Code 7: How to left or right align GtkLabel in GtkWindow? |
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Written by kksou
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Wednesday, 13 September 2006 |
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Problem You want to left or right align GtkLabel in GtkWindow as shown below:
Solution Align the label using GtkMisc::set_alignment()
$label->set_alignment(.5,0); // centered
$label->set_alignment(0,0); // left align
$label->set_alignment(1,0); // right align
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$window = new GtkWindow();
$window->set_size_request(400, 100);
$window->set_border_width(6);
$window->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse("#B2D2DE"));
$window->connect_simple('destroy', array('Gtk','main_quit'));
// Creates a vbox to hold the 3 labels
$vbox = new GtkVBox;
// Label 1 - default (centered)
$label = new GtkLabel('this is centered');
$label->set_alignment(.5,0);
$vbox->pack_start($label);
// label 2 - left aligned
$label = new GtkLabel('this is left aligned');
$label->set_alignment(0,0);
$vbox->pack_start($label);
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Explanation set_alignment(double xalign, double yalign) sets the alignment of the label.
The x-align is a floating point number from 0.0 to 1.0.
- 0.0 = left
- 1.0 = right
- 0.5 = centered
- Of course you can specify another other floating point in between e.g. 0.1 will leave a small gap on the left.
The same applies to y-align, except it does vertical alignment.
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