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Problem There are some stuff that are supposed to be simple and fundamental, but for some reason, are not that "straightforward" in php-gtk. Setting the size of a GtkButton is one example.
Suppose you want your button to be of size 80x32, if you just use:
$button = new GtkButton('button');
$button->set_size_request(80, 32);
$vbox->pack_start($button);
You will find the button expanding to fill up the entire window, even though you have used set_size_request:
Even if you set the expand and fill to false:
$button = new GtkButton('button');
$button->set_size_request(80, 32);
$vbox->pack_start($button, 0, 0);
You will get this:
Let's stuff the button into a hbox:
$button = new GtkButton('button');
$button->set_size_request(80, 32);
$hbox = new GtkHBox();
$hbox->pack_start($button, 0, 0);
$vbox->pack_start($hbox);
You will get this:
So what should you do if you really want the button to be exactly of size 80x32 as shown below:
Solution
- Stuff the button in a GtkHBox. Don't forget to set the expand and fill to
false when packing the button into the hbox.
- When stuffing the above hbox in the container, don't forget to set the expand and fill to
false too.
Sample Code 1
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$window = new GtkWindow();
$window->set_size_request(400, 150);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Set the size of button to exactly 80 x 32");
$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);
$button = new GtkButton('button'); // note 1
$button->set_size_request(80, 32); // note 1
$hbox = new GtkHBox(); // note 2
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- Note that this is only 70% of the sample code. You have to be a registered member to see the entire sample code. Please login or register.
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- Have some doubt about the registration? Please read this forum article.
Explanation
- Create the button and set its size.
- Create a HBox and stuff the button into it. Don't forget to set the expand and fill to
false.
- Stuff the HBox in the containing VBox. Set the expand and fill to
false too.
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