1 files changed, 123 insertions, 0 deletions
diff --git a/vcl/source/toolkit/morebtn.cxx b/vcl/source/toolkit/morebtn.cxx
new file mode 100644
index 0000000000..9c0f6c505a
--- /dev/null
+++ b/vcl/source/toolkit/morebtn.cxx
@@ -0,0 +1,123 @@
+/* -*- 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/toolkit/morebtn.hxx>
+#include <vcl/stdtext.hxx>
+
+struct ImplMoreButtonData
+{
+    OUString                             maMoreText;
+    OUString                             maLessText;
+};
+
+void MoreButton::ImplInit( vcl::Window* pParent, WinBits nStyle )
+{
+    mpMBData.reset(new ImplMoreButtonData);
+    mbState      = false;
+
+    PushButton::ImplInit( pParent, nStyle );
+
+    mpMBData->maMoreText = GetStandardText( StandardButtonType::More );
+    mpMBData->maLessText = GetStandardText( StandardButtonType::Less );
+
+    ShowState();
+
+    SetSymbolAlign(SymbolAlign::RIGHT);
+    SetImageAlign(ImageAlign::Right); //Resolves: fdo#31849 ensure button remains vertically centered
+    SetSmallSymbol();
+
+    if ( ! ( nStyle & ( WB_RIGHT | WB_LEFT ) ) )
+    {
+        nStyle |= WB_CENTER;
+        SetStyle( nStyle );
+    }
+}
+
+void MoreButton::ShowState()
+{
+    if ( mbState )
+    {
+        SetSymbol( SymbolType::PAGEUP );
+        SetText( mpMBData->maLessText );
+    }
+    else
+    {
+        SetSymbol( SymbolType::PAGEDOWN );
+        SetText( mpMBData->maMoreText );
+    }
+}
+
+MoreButton::MoreButton( vcl::Window* pParent, WinBits nStyle ) :
+    PushButton( WindowType::MOREBUTTON )
+{
+    ImplInit( pParent, nStyle );
+}
+
+MoreButton::~MoreButton()
+{
+    disposeOnce();
+}
+
+void MoreButton::dispose()
+{
+    mpMBData.reset();
+    PushButton::dispose();
+}
+
+void MoreButton::Click()
+{
+    vcl::Window*     pParent = GetParent();
+    Size        aSize( pParent->GetSizePixel() );
+    tools::Long nDeltaPixel = LogicToPixel(Size(0, 0), MapMode(MapUnit::MapPixel)).Height();
+
+    // Change status
+    mbState = !mbState;
+    ShowState();
+
+    // Update the windows according to the status
+    if ( mbState )
+    {
+        // Adapt dialogbox
+        Point aPos( pParent->GetPosPixel() );
+        tools::Rectangle aDeskRect( pParent->ImplGetFrameWindow()->GetDesktopRectPixel() );
+
+        aSize.AdjustHeight(nDeltaPixel );
+        if ( (aPos.Y()+aSize.Height()) > aDeskRect.Bottom() )
+        {
+            aPos.setY( aDeskRect.Bottom()-aSize.Height() );
+
+            if ( aPos.Y() < aDeskRect.Top() )
+                aPos.setY( aDeskRect.Top() );
+
+            pParent->SetPosSizePixel( aPos, aSize );
+        }
+        else
+            pParent->SetSizePixel( aSize );
+    }
+    else
+    {
+        // Adapt Dialogbox
+        aSize.AdjustHeight( -nDeltaPixel );
+        pParent->SetSizePixel( aSize );
+    }
+    // Call Click handler here, so that we can initialize the Controls
+    PushButton::Click();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */