How can I add black borders to widget on grid (gtk4 linux xfce)?

web8 · 12-29-2021, 03:13 AM

Quote:

I have xubuntu 21.10. gtk4..g++ ...next source codes:
.......
GtkWidget *label;
........
label = gtk_label_new("dgdfgdfg");
gtk_widget_set_size_request(label, 20, 60);
.........
gtk_grid_attach (GTK_GRID (grid), label,200, 3, 50, 50);
.........
gtk_widget_show (win);
.........

How can I add black borders to this "label" (widget) on form (gtk4 form with grid)?

ondoho · 12-29-2021, 07:59 AM

Wouldn't that be part of the theme's CSS, ideally?
Or hardcode some style attributes?

The actual style would just be

Code:

border: 1px solid black

or some such.

web8 · 12-29-2021, 09:09 AM

Quote:

Originally Posted by ondoho

Wouldn't that be part of the theme's CSS, ideally?
Or hardcode some style attributes?

The actual style would just be

Code:

border: 1px solid black

or some such.

How can I add css style to GtkWidget:

Quote:

GtkWidget *btn1;
GtkWidget *btn2;
GtkWidget *label;

?

shruggy · 12-29-2021, 09:31 AM

Ahem.
gtk_label_set_markup
gtk_button_set_has_frame

web8 · 12-29-2021, 10:03 AM

I writed as:

Quote:

const char *format = "<span style="color:blue">\%s</span>";
char *markup;

markup = g_markup_printf_escaped (format, str);
gtk_label_set_markup (GTK_LABEL (label), markup);
g_free (markup);

this code is not working.
I writed as:

Quote:

const char *format = "<span style="italic">\%s</span>";
char *markup;

markup = g_markup_printf_escaped (format, str);
gtk_label_set_markup (GTK_LABEL (label), markup);
g_free (markup);

this code is working.

How can I change color of this text on "gtk4 widget on grid form"?

EdGr · 12-29-2021, 12:04 PM

Quote:

Originally Posted by web8

How can I change color of this text on "gtk4 widget on grid form"?

Use a GtkDrawingArea and draw the text yourself.

In general, an application program should not try to change the appearance of pre-defined widgets because that is controlled by the theme. Custom drawing is done with the GtkDrawingArea.
Ed