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#include <gtk/gtk.h>
static void
update_offset (GObject *object,
GParamSpec *pspec,
GtkWidget *widget)
{
if (gtk_check_button_get_active (GTK_CHECK_BUTTON (object)))
gtk_popover_set_offset (GTK_POPOVER (widget), 12, 12);
else
gtk_popover_set_offset (GTK_POPOVER (widget), 0, 0);
}
static void
update_shadow (GObject *object,
GParamSpec *pspec,
GtkWidget *widget)
{
const char *classes[] = {
"no-shadow",
"shadow1",
"shadow2",
"shadow3",
"shadow4",
};
guint selected;
selected = gtk_drop_down_get_selected (GTK_DROP_DOWN (object));
g_assert (selected < G_N_ELEMENTS (classes));
for (int i = 0; i < G_N_ELEMENTS (classes); i++)
gtk_widget_remove_css_class (widget, classes[i]);
gtk_widget_add_css_class (widget, classes[selected]);
}
static const char css[] =
"popover.no-shadow > contents { box-shadow: none; }\n"
"popover.shadow1 > contents { box-shadow: 6px 6px rgba(128,0,255,0.5); }\n"
"popover.shadow2 > contents { box-shadow: -6px -6px rgba(255,0,0,0.5), 6px 6px rgba(128,0,255,0.5); }\n"
"popover.shadow3 > contents { box-shadow: -6px -6px rgba(255,0,0,0.5), 18px 18px rgba(128,0,255,0.5); }\n"
"popover.shadow4 > contents { box-shadow: -18px -18px rgba(255,0,0,0.5), 18px 18px rgba(128,0,255,0.5); }\n";
int
main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *box;
GtkWidget *button;
GtkWidget *popover;
GtkWidget *box2;
GtkWidget *box3;
GtkWidget *checkbox;
GtkWidget *checkbox2;
GtkWidget *dropdown;
GtkWidget *dropdown2;
GtkCssProvider *provider;
gtk_init ();
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, css, -1);
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
800);
window = gtk_window_new ();
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
g_object_set (box,
"margin-top", 20,
"margin-bottom", 20,
"margin-start", 20,
"margin-end", 20,
NULL);
button = gtk_menu_button_new ();
gtk_widget_set_halign (button, GTK_ALIGN_CENTER);
gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
gtk_box_append (GTK_BOX (box), button);
popover = gtk_popover_new ();
box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
gtk_popover_set_child (GTK_POPOVER (popover), box2);
gtk_box_append (GTK_BOX (box2), gtk_label_new ("First item"));
gtk_box_append (GTK_BOX (box2), gtk_label_new ("Second item"));
gtk_box_append (GTK_BOX (box2), gtk_label_new ("Third item"));
gtk_menu_button_set_popover (GTK_MENU_BUTTON (button), popover);
box3 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
dropdown = gtk_drop_down_new_from_strings ((const char*[]){ "Left", "Right", "Top", "Bottom", NULL });
gtk_drop_down_set_selected (GTK_DROP_DOWN (dropdown), 3);
checkbox = gtk_check_button_new_with_label ("Arrow");
checkbox2 = gtk_check_button_new_with_label ("Offset");
dropdown2 = gtk_drop_down_new_from_strings ((const char*[]){ "No Shadow", "Shadow 1", "Shadow 2", "Shadow 3", "Shadow 4", NULL });
gtk_box_append (GTK_BOX (box3), checkbox);
gtk_box_append (GTK_BOX (box3), checkbox2);
gtk_box_append (GTK_BOX (box3), dropdown);
gtk_box_append (GTK_BOX (box3), dropdown2);
gtk_box_append (GTK_BOX (box), box3);
g_object_bind_property (checkbox, "active",
popover, "has-arrow",
G_BINDING_SYNC_CREATE);
g_signal_connect (checkbox2, "notify::active",
G_CALLBACK (update_offset), popover);
g_object_bind_property (dropdown, "selected",
popover, "position",
G_BINDING_SYNC_CREATE);
g_signal_connect (dropdown2, "notify::selected",
G_CALLBACK (update_shadow), popover);
update_shadow (G_OBJECT (dropdown2), NULL, popover);
gtk_window_set_child (GTK_WINDOW (window), box);
gtk_window_present (GTK_WINDOW (window));
while (g_list_model_get_n_items (gtk_window_get_toplevels ()) > 0)
g_main_context_iteration (NULL, TRUE);
return 0;
}
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