gtk/demos/gtk-demo/listbox_controls.c
Matthias Clasen a284dc9f31 demos: Use gtk_builder_cscope_add_callback
This is C convenience API, lets use it for
our convenience.
2022-06-30 20:10:06 -04:00

71 lines
2.1 KiB
C

/* List Box/Controls
*
* GtkListBox is well-suited for creating “button strips” — lists of
* controls for use in preference dialogs or settings panels. To create
* this style of list, use the .rich-list style class.
*/
#include <gtk/gtk.h>
static GtkWidget *window;
static GtkWidget *switch_widget;
static GtkWidget *check;
static GtkWidget *image;
static void
row_activated (GtkListBox *list,
GtkListBoxRow *row)
{
if (gtk_widget_is_ancestor (switch_widget, GTK_WIDGET (row)))
{
gtk_switch_set_active (GTK_SWITCH (switch_widget),
!gtk_switch_get_active (GTK_SWITCH (switch_widget)));
}
else if (gtk_widget_is_ancestor (check, GTK_WIDGET (row)))
{
gtk_check_button_set_active (GTK_CHECK_BUTTON (check),
!gtk_check_button_get_active (GTK_CHECK_BUTTON (check)));
}
else if (gtk_widget_is_ancestor (image, GTK_WIDGET (row)))
{
gtk_widget_set_opacity (image,
1.0 - gtk_widget_get_opacity (image));
}
}
GtkWidget *
do_listbox_controls (GtkWidget *do_widget)
{
if (!window)
{
GtkBuilderScope *scope;
GtkBuilder *builder;
scope = gtk_builder_cscope_new ();
gtk_builder_cscope_add_callback (scope, row_activated);
builder = gtk_builder_new ();
gtk_builder_set_scope (builder, scope);
gtk_builder_add_from_resource (builder, "/listbox_controls/listbox_controls.ui", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
switch_widget = GTK_WIDGET (gtk_builder_get_object (builder, "switch"));
check = GTK_WIDGET (gtk_builder_get_object (builder, "check"));
image = GTK_WIDGET (gtk_builder_get_object (builder, "image"));
g_object_unref (builder);
g_object_unref (scope);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}