Learning_GTK4_tree/demos/gtk-demo/headerbar.c

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2023-12-12 11:36:42 +01:00
/* Header Bar
* #Keywords: GtkWindowHandle, GtkWindowControls
*
* GtkHeaderBar is a container that is suitable for implementing
* window titlebars. One of its features is that it can position
* a title centered with regard to the full width, regardless of
* variable-width content at the left or right.
*
* It is commonly used with gtk_window_set_titlebar()
*/
#include <gtk/gtk.h>
GtkWidget *
do_headerbar (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *header;
GtkWidget *button;
GtkWidget *box;
GtkWidget *content;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Welcome to the Hotel California");
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
header = gtk_header_bar_new ();
button = gtk_button_new_from_icon_name ("mail-send-receive-symbolic");
gtk_widget_set_tooltip_text (button, "Check out");
gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_add_css_class (box, "linked");
button = gtk_button_new_from_icon_name ("go-previous-symbolic");
gtk_widget_set_tooltip_text (button, "Back");
gtk_box_append (GTK_BOX (box), button);
button = gtk_button_new_from_icon_name ("go-next-symbolic");
gtk_widget_set_tooltip_text (button, "Forward");
gtk_box_append (GTK_BOX (box), button);
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), box);
button = gtk_switch_new ();
gtk_accessible_update_property (GTK_ACCESSIBLE (button),
GTK_ACCESSIBLE_PROPERTY_LABEL, "Change something",
-1);
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button);
gtk_window_set_titlebar (GTK_WINDOW (window), header);
content = gtk_text_view_new ();
gtk_accessible_update_property (GTK_ACCESSIBLE (content),
GTK_ACCESSIBLE_PROPERTY_LABEL, "Content",
-1);
gtk_window_set_child (GTK_WINDOW (window), content);
}
if (!gtk_widget_get_visible (window))
gtk_widget_set_visible (window, TRUE);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}