1 files changed, 127 insertions, 0 deletions
diff --git a/sd/source/ui/sidebar/PreviewValueSet.cxx b/sd/source/ui/sidebar/PreviewValueSet.cxx
new file mode 100644
index 0000000000..f752d60eb0
--- /dev/null
+++ b/sd/source/ui/sidebar/PreviewValueSet.cxx
@@ -0,0 +1,127 @@
+/* -*- 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 "PreviewValueSet.hxx"
+#include <vcl/commandevent.hxx>
+
+namespace sd::sidebar {
+
+const int gnBorderWidth(3);
+const int gnBorderHeight(3);
+
+PreviewValueSet::PreviewValueSet()
+    : ValueSet(nullptr)
+    , maPreviewSize(10,10)
+{
+    SetStyle (
+        GetStyle()
+        & ~(WB_ITEMBORDER)// | WB_MENUSTYLEVALUESET)
+        //        | WB_FLATVALUESET);
+        );
+}
+
+void PreviewValueSet::SetDrawingArea(weld::DrawingArea* pDrawingArea)
+{
+    ValueSet::SetDrawingArea(pDrawingArea);
+
+    SetColCount(2);
+    SetExtraSpacing (2);
+}
+
+PreviewValueSet::~PreviewValueSet()
+{
+}
+
+void PreviewValueSet::SetPreviewSize (const Size& rSize)
+{
+    maPreviewSize = rSize;
+}
+
+void PreviewValueSet::SetContextMenuHandler(const Link<const Point*, void>& rLink)
+{
+    maContextMenuHandler = rLink;
+}
+
+bool PreviewValueSet::Command(const CommandEvent& rEvent)
+{
+    if (rEvent.GetCommand() != CommandEventId::ContextMenu)
+        return ValueSet::Command(rEvent);
+    maContextMenuHandler.Call(rEvent.IsMouseEvent() ? &rEvent.GetMousePosPixel() : nullptr);
+    return true;
+}
+
+void PreviewValueSet::Resize()
+{
+    ValueSet::Resize();
+
+    Size aWindowSize (GetOutputSizePixel());
+    if (!aWindowSize.IsEmpty())
+    {
+        Rearrange();
+    }
+}
+
+void PreviewValueSet::Rearrange()
+{
+    sal_uInt16 nNewColumnCount (CalculateColumnCount (
+        GetOutputSizePixel().Width()));
+    sal_uInt16 nNewRowCount (CalculateRowCount (nNewColumnCount));
+
+    SetFormat();
+    SetColCount(nNewColumnCount);
+    SetLineCount(nNewRowCount);
+}
+
+sal_uInt16 PreviewValueSet::CalculateColumnCount (int nWidth) const
+{
+    int nColumnCount = 0;
+    if (nWidth > 0)
+    {
+        nColumnCount = nWidth / (maPreviewSize.Width() + 2*gnBorderWidth);
+        if (nColumnCount < 1)
+            nColumnCount = 1;
+    }
+    return static_cast<sal_uInt16>(nColumnCount);
+}
+
+sal_uInt16 PreviewValueSet::CalculateRowCount (sal_uInt16 nColumnCount) const
+{
+    int nRowCount = 0;
+    int nItemCount = GetItemCount();
+    if (nColumnCount > 0)
+    {
+        nRowCount = (nItemCount+nColumnCount-1) / nColumnCount;
+        if (nRowCount < 1)
+            nRowCount = 1;
+    }
+
+    return static_cast<sal_uInt16>(nRowCount);
+}
+
+sal_Int32 PreviewValueSet::GetPreferredHeight (sal_Int32 nWidth)
+{
+    int nRowCount (CalculateRowCount(CalculateColumnCount(nWidth)));
+    int nItemHeight (maPreviewSize.Height());
+
+    return nRowCount * (nItemHeight + 2*gnBorderHeight);
+}
+
+} // end of namespace sd::sidebar
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */