Re: How to get and set the width/height of a label?

[Jorge Opaso Pazos <jorge opaso gmail com>]

In C, to obtain the actual size of the widget:

widget->allocation.{width,height}

To set the size (minimum size):

gtk_widget_set_size_request

Example:

static void _label_size_allocate(GtkWidget *a_widget,

 GtkAllocation *a_alloc,

 gpointer a_data)

{

printf("size %d %d\n",

  a_widget->allocation.width,

  a_widget->allocation.height);

}

int main(int a_argc,char **a_argv)

{

GtkWidget *l_label;

GtkWidget *l_window;

gtk_init(&a_argc,&a_argv);

l_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

l_label = gtk_label_new("hello");

gtk_widget_set_size_request(GTK_WIDGET(l_label),800,600);

// To see de changes with manual resize.

g_signal_connect(G_OBJECT(l_label),

"size-allocate",

G_CALLBACK(_label_size_allocate),

NULL);

gtk_container_add(GTK_CONTAINER(l_window),l_label);

gtk_widget_show_all(l_window);

gtk_main();

return 0;

}

gtk_widget_size_allocate doesn't work for me.

Atentamente,

Jorge Opaso Pazos

AUTOLogic LTDA

El 07-08-2009, a las 9:21, cbx escribió:

I tried:in Python,it is gtk.Label.size_request().However, it only return the size the widget request to draw itself.If you resize the window,which in turn resizes the label,the value gtk.Label.size_request() returns doesn't change.

I find gtk.Widget.get_allocation() would work,even when the label is resized.It returns a gtk.gdk.Rectangle(x, y, width, height),like (0, 0, 74, 17).

And,how to set the size of gtk.Label?Is gtk.Widget.size_allocate() the answer?

On Fri, Aug 7, 2009 at 10:43 AM, Jorge Opaso Pazos <jorge opaso gmail com> wrote:

This works (C):

int main(int a_argc,char **a_argv)

{

GtkWidget *l_label;

GtkRequisition l_req;

gtk_init(&a_argc,&a_argv);

l_label = gtk_label_new("hello");

memset(&l_req,0,sizeof(GtkRequisition));

gtk_widget_size_request(l_label,&l_req); // not gtk_widget_get_size_request

printf("%d %d\n",l_req.width,l_req.height);

return 0;

}

Output: 31 17

Maybe in python is: gtk.Label.size_request() 

Atentamente,

Jorge Opaso Pazos

AUTOLogic LTDA

El 06-08-2009, a las 21:33, cbx escribió:

I would like to know how to get and set the size of a label.
There seems no answer in the pygtk API(me using Python currently). gtk.Label.get_size_request() only return (-1,-1).

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