feat: use GtkApplication

Convert mate-calc to GtkApplication.

1 files changed, 44 insertions, 0 deletions

diff --git a/src/mate-calc-application.h b/src/mate-calc-application.h
new file mode 100644
index 0000000..b8ec26d
--- /dev/null
+++ b/src/mate-calc-application.h
@@ -0,0 +1,44 @@
+/*
+ * mate-calc-application.h - GtkApplication for MATE Calculator
+ *
+ * Copyright (C) 2026 MATE Desktop Team
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 2 of the License, or (at your option) any later
+ * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
+ * license.
+ */
+
+#ifndef MATE_CALC_APPLICATION_H
+#define MATE_CALC_APPLICATION_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define MATE_CALC_TYPE_APPLICATION (mate_calc_application_get_type())
+G_DECLARE_FINAL_TYPE(MateCalcApplication, mate_calc_application, MATE_CALC, APPLICATION, GtkApplication)
+
+/**
+ * mate_calc_application_new:
+ *
+ * Creates a new MateCalcApplication instance.
+ *
+ * Returns: (transfer full): A new MateCalcApplication
+ */
+MateCalcApplication *mate_calc_application_new(void);
+
+/**
+ * mate_calc_application_get_settings:
+ * @app: A MateCalcApplication
+ *
+ * Gets the GSettings object for the calculator.
+ *
+ * Returns: (transfer none): The GSettings object
+ */
+GSettings *mate_calc_application_get_settings(MateCalcApplication *app);
+
+G_END_DECLS
+
+#endif /* MATE_CALC_APPLICATION_H */