File: monitor-selection.c

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gtk4-layer-shell 1.2.0-1
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#include "gtk-layer-demo.h"

const char* current_monitor_key = "current_layer_monitor";

#include "gtk-layer-demo.h"

#define MAX_MONIITORS 100
const char* monitor_strs[MAX_MONIITORS] = {"Default", NULL};
GdkMonitor* monitor_vals[MAX_MONIITORS] = {NULL};

static void on_monitor_selected(GtkDropDown* dropdown, const GParamSpec* _pspec, GtkWindow* layer_window) {
    (void)_pspec;
    guint index = gtk_drop_down_get_selected(dropdown);
    gtk_layer_set_monitor(layer_window, monitor_vals[index]);
}

GtkWidget* monitor_selection_new(GtkWindow* layer_window) {
    GtkWidget* vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6); {
        GListModel* monitors = gdk_display_get_monitors(gdk_display_get_default()); // owned by display
        for (unsigned i = 0; i < g_list_model_get_n_items(monitors) && i < MAX_MONIITORS - 2; i++) {
            GdkMonitor* monitor = g_list_model_get_item(monitors, i);
            GString* text = g_string_new("");
            g_string_printf(text, "%d. %s", i + 1, gdk_monitor_get_model(monitor));
            monitor_strs[i + 1] = g_strdup(text->str);
            g_string_free(text, TRUE);
            monitor_vals[i + 1] = g_object_ref(monitor);
            monitor_strs[i + 2] = NULL;
        }
        GtkWidget* dropdown = gtk_drop_down_new_from_strings(monitor_strs);
        gtk_widget_set_tooltip_text(dropdown, "Monitor");
        gtk_drop_down_set_selected(GTK_DROP_DOWN(dropdown), 0);
        g_signal_connect(dropdown, "notify::selected", G_CALLBACK(on_monitor_selected), layer_window);
        gtk_box_append(GTK_BOX(vbox), dropdown);
    }
    return vbox;
}