GtkWidget for the priority of extension under Extension Tab.

The new structure :
PriorityMergedHBox
--OptionalBox
--ToolBoxExtension
--Extension1
--OptionalBox
.....

Change-Id: I72760e4f0d60eb6f1f82c1e928601d41a2e4b6ce
Reviewed-on: https://gerrit.libreoffice.org/76987
Tested-by: Jenkins
Reviewed-by: Szymon Kłos <szymon.klos@collabora.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/vcl/source/window/OptionalBox.cxx b/vcl/source/window/OptionalBox.cxx
new file mode 100644
index 000000000000..6f47b468f194
--- /dev/null
+++ b/vcl/source/window/OptionalBox.cxx
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/builderfactory.hxx>
+#include <vcl/layout.hxx>
+#include <vcl/OptionalBox.hxx>
+
+/*
+ * OptionalBox - shows or hides the content. To use with PriorityHBox
+ * or PriorityMergedHBox
+ */
+
+OptionalBox::OptionalBox(vcl::Window* pParent)
+    : VclHBox(pParent)
+    , IPrioritable()
+    , m_bInFullView(true)
+{
+}
+
+OptionalBox::~OptionalBox() { disposeOnce(); }
+
+void OptionalBox::HideContent()
+{
+    if (m_bInFullView)
+    {
+        m_bInFullView = false;
+
+        for (int i = 0; i < GetChildCount(); i++)
+            GetChild(i)->Hide();
+
+        SetOutputSizePixel(Size(10, GetSizePixel().Height()));
+    }
+}
+
+void OptionalBox::ShowContent()
+{
+    if (!m_bInFullView)
+    {
+        m_bInFullView = true;
+
+        for (int i = 0; i < GetChildCount(); i++)
+            GetChild(i)->Show();
+    }
+}
+
+bool OptionalBox::IsHidden() { return !m_bInFullView; }
+
+VCL_BUILDER_FACTORY(OptionalBox)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */