Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 205 insertions, 0 deletions

diff --git a/chart2/source/view/axes/DateScaling.cxx b/chart2/source/view/axes/DateScaling.cxx
new file mode 100644
index 000000000..15cb59635
--- /dev/null
+++ b/chart2/source/view/axes/DateScaling.cxx
@@ -0,0 +1,205 @@
+/* -*- 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 "DateScaling.hxx"
+#include <com/sun/star/chart/TimeUnit.hpp>
+#include <rtl/math.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <limits>
+
+namespace
+{
+
+constexpr OUStringLiteral lcl_aServiceName_DateScaling = u"com.sun.star.chart2.DateScaling";
+constexpr OUStringLiteral lcl_aServiceName_InverseDateScaling
+    = u"com.sun.star.chart2.InverseDateScaling";
+
+const double lcl_fNumberOfMonths = 12.0;//todo: this needs to be offered by basic tools Date class if it should be more generic
+}
+
+namespace chart
+{
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::chart2;
+using ::com::sun::star::chart::TimeUnit::DAY;
+using ::com::sun::star::chart::TimeUnit::MONTH;
+using ::com::sun::star::chart::TimeUnit::YEAR;
+
+DateScaling::DateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted )
+        : m_aNullDate( rNullDate )
+        , m_nTimeUnit( nTimeUnit )
+        , m_bShifted( bShifted )
+{
+}
+
+DateScaling::~DateScaling()
+{
+}
+
+double SAL_CALL DateScaling::doScaling( double value )
+{
+    double fResult(value);
+    if( std::isnan( value ) || std::isinf( value ) )
+        return std::numeric_limits<double>::quiet_NaN();
+    switch( m_nTimeUnit )
+    {
+        case DAY:
+            fResult = value;
+            if(m_bShifted)
+                fResult+=0.5;
+            break;
+        case YEAR:
+        case MONTH:
+        default:
+        {
+            Date aDate(m_aNullDate);
+            aDate.AddDays(::rtl::math::approxFloor(value));
+            fResult = aDate.GetYear();
+            fResult *= lcl_fNumberOfMonths;//assuming equal count of months in each year
+            fResult += aDate.GetMonth();
+
+            double fDayOfMonth = aDate.GetDay();
+            fDayOfMonth -= 1.0;
+            double fDaysInMonth = aDate.GetDaysInMonth();
+            fResult += fDayOfMonth/fDaysInMonth;
+            if(m_bShifted)
+            {
+                if( m_nTimeUnit==YEAR )
+                    fResult += 0.5*lcl_fNumberOfMonths;
+                else
+                    fResult += 0.5;
+            }
+            break;
+        }
+    }
+    return fResult;
+}
+
+uno::Reference< XScaling > SAL_CALL DateScaling::getInverseScaling()
+{
+    return new InverseDateScaling( m_aNullDate, m_nTimeUnit, m_bShifted );
+}
+
+OUString SAL_CALL DateScaling::getServiceName()
+{
+    return lcl_aServiceName_DateScaling;
+}
+
+OUString SAL_CALL DateScaling::getImplementationName()
+{
+    return lcl_aServiceName_DateScaling;
+}
+
+sal_Bool SAL_CALL DateScaling::supportsService( const OUString& rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+css::uno::Sequence< OUString > SAL_CALL DateScaling::getSupportedServiceNames()
+{
+    return { lcl_aServiceName_DateScaling };
+}
+
+InverseDateScaling::InverseDateScaling( const Date& rNullDate, sal_Int32 nTimeUnit, bool bShifted )
+        : m_aNullDate( rNullDate )
+        , m_nTimeUnit( nTimeUnit )
+        , m_bShifted( bShifted )
+{
+}
+
+InverseDateScaling::~InverseDateScaling()
+{
+}
+
+double SAL_CALL InverseDateScaling::doScaling( double value )
+{
+    double fResult(value);
+    if( std::isnan( value ) || std::isinf( value ) )
+        return std::numeric_limits<double>::quiet_NaN();
+    else
+    {
+        switch( m_nTimeUnit )
+        {
+            case DAY:
+                if(m_bShifted)
+                    value -= 0.5;
+                fResult = value;
+                break;
+            case YEAR:
+            case MONTH:
+            default:
+                //Date aDate(m_aNullDate);
+                if(m_bShifted)
+                {
+                    if( m_nTimeUnit==YEAR )
+                        value -= 0.5*lcl_fNumberOfMonths;
+                    else
+                        value -= 0.5;
+                }
+                Date aDate( Date::EMPTY );
+                double fYear = ::rtl::math::approxFloor(value/lcl_fNumberOfMonths);
+                double fMonth = ::rtl::math::approxFloor(value-(fYear*lcl_fNumberOfMonths));
+                if( fMonth==0.0 )
+                {
+                    fYear--;
+                    fMonth=12.0;
+                }
+                aDate.SetYear( static_cast<sal_uInt16>(fYear) );
+                aDate.SetMonth( static_cast<sal_uInt16>(fMonth) );
+                aDate.SetDay( 1 );
+                double fMonthCount = (fYear*lcl_fNumberOfMonths)+fMonth;
+                double fDay = (value-fMonthCount)*aDate.GetDaysInMonth();
+                fDay += 1.0;
+                aDate.SetDay( static_cast<sal_uInt16>(::rtl::math::round(fDay)) );
+                fResult = aDate - m_aNullDate;
+                break;
+        }
+    }
+    return fResult;
+}
+
+uno::Reference< XScaling > SAL_CALL InverseDateScaling::getInverseScaling()
+{
+    return new DateScaling( m_aNullDate, m_nTimeUnit, m_bShifted );
+}
+
+OUString SAL_CALL InverseDateScaling::getServiceName()
+{
+    return lcl_aServiceName_InverseDateScaling;
+}
+
+OUString SAL_CALL InverseDateScaling::getImplementationName()
+{
+    return lcl_aServiceName_InverseDateScaling;
+}
+
+sal_Bool SAL_CALL InverseDateScaling::supportsService( const OUString& rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+css::uno::Sequence< OUString > SAL_CALL InverseDateScaling::getSupportedServiceNames()
+{
+    return { lcl_aServiceName_InverseDateScaling };
+}
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */