layer-selection.c

#include "gtk-layer-demo.h"

const char* layer_strs[] = {"Overlay", "Top", "Bottom", "Background", NULL};
GtkLayerShellLayer layer_vals[] = {
    GTK_LAYER_SHELL_LAYER_OVERLAY,
    GTK_LAYER_SHELL_LAYER_TOP,
    GTK_LAYER_SHELL_LAYER_BOTTOM,
    GTK_LAYER_SHELL_LAYER_BACKGROUND,
};

static void on_layer_selected(GtkDropDown* dropdown, const GParamSpec* _pspec, GtkWindow* layer_window) {
    (void)_pspec;
    guint index = gtk_drop_down_get_selected(dropdown);
    gtk_layer_set_layer(layer_window, layer_vals[index]);
}

GtkWidget* layer_selection_new(GtkWindow* layer_window, GtkLayerShellLayer default_layer) {
    GtkWidget* vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6); {
        GtkWidget* dropdown = gtk_drop_down_new_from_strings(layer_strs);
        gtk_widget_set_tooltip_text(dropdown, "Layer");
        for (unsigned i = 0; i < sizeof(layer_vals) / sizeof(layer_vals[0]); i++) {
            if (layer_vals[i] == default_layer)
                gtk_drop_down_set_selected(GTK_DROP_DOWN(dropdown), i);
        }
        g_signal_connect(dropdown, "notify::selected", G_CALLBACK(on_layer_selected), layer_window);
        gtk_box_append(GTK_BOX(vbox), dropdown);
    }
    return vbox;
}