1 files changed, 107 insertions, 0 deletions
diff --git a/xmloff/source/core/ProgressBarHelper.cxx b/xmloff/source/core/ProgressBarHelper.cxx
new file mode 100644
index 000000000..fd5c295a6
--- /dev/null
+++ b/xmloff/source/core/ProgressBarHelper.cxx
@@ -0,0 +1,107 @@
+/* -*- 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 <xmloff/ProgressBarHelper.hxx>
+
+#include <osl/diagnose.h>
+
+using namespace ::com::sun::star;
+
+const sal_Int32 nDefaultProgressBarRange = 1000000;
+const float fProgressStep = 0.5;
+
+ProgressBarHelper::ProgressBarHelper(const css::uno::Reference < css::task::XStatusIndicator>& xTempStatusIndicator,
+                                    const bool bTempStrict)
+: xStatusIndicator(xTempStatusIndicator)
+, nRange(nDefaultProgressBarRange)
+, nReference(100)
+, nValue(0)
+, fOldPercent(0.0)
+, bStrict(bTempStrict)
+, bRepeat(true)
+#ifdef DBG_UTIL
+, bFailure(false)
+#endif
+{
+}
+
+ProgressBarHelper::~ProgressBarHelper()
+{
+}
+
+void ProgressBarHelper::ChangeReference(sal_Int32 nNewReference)
+{
+    if((nNewReference <= 0) || (nNewReference == nReference))
+        return;
+
+    if (nReference)
+    {
+        double fPercent(static_cast<double>(nNewReference) / nReference);
+        double fValue(nValue * fPercent);
+        nValue = static_cast<sal_Int32>(fValue);
+        nReference = nNewReference;
+    }
+    else
+    {
+        nReference = nNewReference;
+        nValue = 0;
+    }
+}
+
+void ProgressBarHelper::SetValue(sal_Int32 nTempValue)
+{
+    if (!xStatusIndicator.is() || (nReference <= 0))
+        return;
+
+    if ((nTempValue >= nValue) && (!bStrict || (nTempValue <= nReference)))
+    {
+        // #91317# no progress bar with values > 100%
+        if (nTempValue > nReference)
+        {
+            if (!bRepeat)
+                nValue = nReference;
+            else
+            {
+                xStatusIndicator->reset();
+                nValue = 0;
+            }
+        }
+        else
+            nValue = nTempValue;
+
+        double fValue(nValue);
+        double fNewValue ((fValue * nRange) / nReference);
+
+        double fPercent((fNewValue * 100) / nRange);
+        if (fPercent >= (fOldPercent + fProgressStep) || fPercent < fOldPercent)
+        {
+            xStatusIndicator->setValue(static_cast<sal_Int32>(fNewValue));
+            fOldPercent = fPercent;
+        }
+    }
+#ifdef DBG_UTIL
+    else if (!bFailure)
+    {
+        OSL_FAIL("tried to set a wrong value on the progressbar");
+        bFailure = true;
+    }
+#endif
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */