Re: gtk_widget_size_allocate(): attempt to allocate widget with width -19 and height 1
Thanks Eric. I tried swapping the margin for border width and now I get
a warning for every item I add to the grid. Plus I don't want a wide
border all around the widget, I just want to add some space on the left.
I see that margin-left has been replaced by margin-start but I don't see
that in the version of Glade I'm using and I'm not convinced that it
would behave any differently.
The solution is to pack the grid into an alignment widget and set the
left padding.
Cheers,
On Mon, 2017-12-04 at 13:55 -0500, cecas...@aol.com wrote:
> Hi Franco,
>
>
> I see "margin-left" is deprecated since version 3.12.
>
> This might work. If you set the container margin of the grid and then
> individually place your widgets in the locations that you want them,,,
> hopefully no warnings. I don't get any warnings on GTK3.18. Will something
> like this work?
>
> Eric
>
> /*
>gcc -Wall expander1.c -o expander1 `pkg-config --cflags --libs gtk+-3.0`
>Tested with GTK3.18 on Ubuntu16.04
> */
> #include
>
> int main(int argc, char *argv[])
> {
> gtk_init (&argc, &argv);
>
> GtkWidget *window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
> gtk_window_set_title(GTK_WINDOW(window), "Expander");
> gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
> gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
> g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
>
> GtkWidget *check1=gtk_check_button_new_with_label("Check1");
> gtk_widget_set_hexpand(check1, TRUE);
> gtk_widget_set_vexpand(check1, TRUE);
>
> GtkWidget *check2=gtk_check_button_new_with_label("Check2");
> gtk_widget_set_hexpand(check2, TRUE);
> gtk_widget_set_vexpand(check2, TRUE);
> gtk_widget_set_halign(check2, GTK_ALIGN_CENTER);
>
> GtkWidget *label=gtk_label_new("Label");
> gtk_widget_set_hexpand(label, TRUE);
> gtk_widget_set_vexpand(label, TRUE);
>
> GtkWidget *grid=gtk_grid_new();
> gtk_container_set_border_width(GTK_CONTAINER(grid), 20);
> gtk_grid_attach(GTK_GRID(grid), check1, 0, 0, 1, 1);
> gtk_grid_attach(GTK_GRID(grid), check2, 0, 1, 1, 1);
> gtk_grid_attach(GTK_GRID(grid), label, 0, 2, 1, 1);
>
> GtkWidget *expander=gtk_expander_new("Expander");
> gtk_container_add(GTK_CONTAINER(expander), grid);
>
> gtk_container_add(GTK_CONTAINER(window), expander);
>
> gtk_widget_show_all(window);
>
> gtk_main();
>
> return 0;
> }
>
>
>
>
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Re: gtk_widget_size_allocate(): attempt to allocate widget with width -19 and height 1
Hi Franco,
I see "margin-left" is deprecated since version 3.12.
This might work. If you set the container margin of the grid and then
individually place your widgets in the locations that you want them,,,
hopefully no warnings. I don't get any warnings on GTK3.18. Will something like
this work?
Eric
/*
gcc -Wall expander1.c -o expander1 `pkg-config --cflags --libs gtk+-3.0`
Tested with GTK3.18 on Ubuntu16.04
*/
#include
int main(int argc, char *argv[])
{
gtk_init (&argc, &argv);
GtkWidget *window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Expander");
gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
GtkWidget *check1=gtk_check_button_new_with_label("Check1");
gtk_widget_set_hexpand(check1, TRUE);
gtk_widget_set_vexpand(check1, TRUE);
GtkWidget *check2=gtk_check_button_new_with_label("Check2");
gtk_widget_set_hexpand(check2, TRUE);
gtk_widget_set_vexpand(check2, TRUE);
gtk_widget_set_halign(check2, GTK_ALIGN_CENTER);
GtkWidget *label=gtk_label_new("Label");
gtk_widget_set_hexpand(label, TRUE);
gtk_widget_set_vexpand(label, TRUE);
GtkWidget *grid=gtk_grid_new();
gtk_container_set_border_width(GTK_CONTAINER(grid), 20);
gtk_grid_attach(GTK_GRID(grid), check1, 0, 0, 1, 1);
gtk_grid_attach(GTK_GRID(grid), check2, 0, 1, 1, 1);
gtk_grid_attach(GTK_GRID(grid), label, 0, 2, 1, 1);
GtkWidget *expander=gtk_expander_new("Expander");
gtk_container_add(GTK_CONTAINER(expander), grid);
gtk_container_add(GTK_CONTAINER(window), expander);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
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gtk_widget_size_allocate(): attempt to allocate widget with width -19 and height 1
Hi I have an application built using Glade which has a grid inside an expander, when I expand the expander I get a Gtk-WARNING even though everything works as expected. Through trial and error I traced the problem to the left margin set on the grid widget, if it's zero I don't get a warning. I tried putting the grid inside a box but setting a margin on the box has the same problem. Any ideas how to make the warning go away? It must be grid widget related because I use expanders a lot but this is the only one with a grid inside it. I'm using Gtk 3.14 and here is a snippet of the Glade XML if it helps True True True True False start start 20 immediate 4 20 Not a show stopper but annoying. Cheers, ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
