1 files changed, 99 insertions, 0 deletions
diff --git a/src/ui/widget/registered-enums.h b/src/ui/widget/registered-enums.h
new file mode 100644
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--- /dev/null
+++ b/src/ui/widget/registered-enums.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Authors:
+ *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef INKSCAPE_UI_WIDGET_REGISTERED_ENUMS_H
+#define INKSCAPE_UI_WIDGET_REGISTERED_ENUMS_H
+
+#include "ui/widget/combo-enums.h"
+#include "ui/widget/registered-widget.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+/**
+ * Simplified management of enumerations in the UI as combobox.
+ */
+template<typename E> class RegisteredEnum : public RegisteredWidget< LabelledComboBoxEnum<E> >
+{
+public:
+    ~RegisteredEnum() override {
+        _changed_connection.disconnect();
+    }
+
+    RegisteredEnum ( const Glib::ustring& label,
+                const Glib::ustring& tip,
+                const Glib::ustring& key,
+                const Util::EnumDataConverter<E>& c,
+                Registry& wr,
+                Inkscape::XML::Node* repr_in = nullptr,
+                SPDocument *doc_in = nullptr,
+                bool sorted = true )
+        : RegisteredWidget< LabelledComboBoxEnum<E> >(label, tip, c, (const Glib::ustring &)"", (const Glib::ustring &)"", true, sorted)
+    {
+        RegisteredWidget< LabelledComboBoxEnum<E> >::init_parent(key, wr, repr_in, doc_in);
+        _changed_connection = combobox()->signal_changed().connect (sigc::mem_fun (*this, &RegisteredEnum::on_changed));
+    }
+
+    void set_active_by_id (E id) {
+        combobox()->set_active_by_id(id);
+    };
+
+    void set_active_by_key (const Glib::ustring& key) {
+        combobox()->set_active_by_key(key);
+    }
+
+    inline const Util::EnumData<E>* get_active_data() {
+        combobox()->get_active_data();
+    }
+
+    ComboBoxEnum<E> * combobox() {
+        return LabelledComboBoxEnum<E>::getCombobox();
+    }
+
+    sigc::connection _changed_connection;
+
+protected:
+    void on_changed() {
+        if (combobox()->setProgrammatically) {
+            combobox()->setProgrammatically = false;
+            return;
+        }
+
+        if (RegisteredWidget< LabelledComboBoxEnum<E> >::_wr->isUpdating())
+            return;
+
+        RegisteredWidget< LabelledComboBoxEnum<E> >::_wr->setUpdating (true);
+
+        const Util::EnumData<E>* data = combobox()->get_active_data();
+        if (data) {
+            RegisteredWidget< LabelledComboBoxEnum<E> >::write_to_xml(data->key.c_str());
+        }
+
+        RegisteredWidget< LabelledComboBoxEnum<E> >::_wr->setUpdating (false);
+    }
+};
+
+}
+}
+}
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :