Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 1554 insertions, 0 deletions

diff --git a/vcl/source/control/calendar.cxx b/vcl/source/control/calendar.cxx
new file mode 100644
index 000000000..0baecf397
--- /dev/null
+++ b/vcl/source/control/calendar.cxx
@@ -0,0 +1,1554 @@
+/* -*- 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/svapp.hxx>
+#include <vcl/help.hxx>
+#include <vcl/menu.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/event.hxx>
+#include <vcl/commandevent.hxx>
+#include <unotools/calendarwrapper.hxx>
+#include <unotools/localedatawrapper.hxx>
+#include <com/sun/star/i18n/Weekdays.hpp>
+#include <com/sun/star/i18n/CalendarDisplayIndex.hpp>
+#include <com/sun/star/i18n/CalendarFieldIndex.hpp>
+#include <sal/log.hxx>
+
+#include <vcl/calendar.hxx>
+#include <svdata.hxx>
+#include <strings.hrc>
+#include <memory>
+
+#define DAY_OFFX                        4
+#define DAY_OFFY                        2
+#define MONTH_BORDERX                   4
+#define MONTH_OFFY                      3
+#define WEEKDAY_OFFY                    3
+#define TITLE_OFFY                      3
+#define TITLE_BORDERY                   2
+#define SPIN_OFFX                       4
+#define SPIN_OFFY                       TITLE_BORDERY
+
+#define CALENDAR_HITTEST_DAY            (sal_uInt16(0x0001))
+#define CALENDAR_HITTEST_MONTHTITLE     (sal_uInt16(0x0004))
+#define CALENDAR_HITTEST_PREV           (sal_uInt16(0x0008))
+#define CALENDAR_HITTEST_NEXT           (sal_uInt16(0x0010))
+
+#define MENU_YEAR_COUNT                 3
+
+using namespace ::com::sun::star;
+
+static void ImplCalendarSelectDate( IntDateSet* pTable, const Date& rDate, bool bSelect )
+{
+    if ( bSelect )
+        pTable->insert( rDate.GetDate() );
+    else
+        pTable->erase( rDate.GetDate() );
+}
+
+
+
+void Calendar::ImplInit( WinBits nWinStyle )
+{
+    mpSelectTable.reset(new IntDateSet);
+    mnDayCount              = 0;
+    mnWinStyle              = nWinStyle;
+    mnFirstYear             = 0;
+    mnLastYear              = 0;
+    mbCalc                  = true;
+    mbFormat                = true;
+    mbDrag                  = false;
+    mbSelection             = false;
+    mbMenuDown              = false;
+    mbSpinDown              = false;
+    mbPrevIn                = false;
+    mbNextIn                = false;
+    mbTravelSelect          = false;
+    mbAllSel                = false;
+
+    OUString aGregorian( "gregorian");
+    maCalendarWrapper.loadCalendar( aGregorian,
+            Application::GetAppLocaleDataWrapper().getLanguageTag().getLocale());
+    if (maCalendarWrapper.getUniqueID() != aGregorian)
+    {
+        SAL_WARN( "vcl.control", "Calendar::ImplInit: No ``gregorian'' calendar available for locale ``"
+            << Application::GetAppLocaleDataWrapper().getLanguageTag().getBcp47()
+            << "'' and other calendars aren't supported. Using en-US fallback." );
+
+        /* If we ever wanted to support other calendars than Gregorian a lot of
+         * rewrite would be necessary to internally replace use of class Date
+         * with proper class CalendarWrapper methods, get rid of fixed 12
+         * months, fixed 7 days, ... */
+        maCalendarWrapper.loadCalendar( aGregorian, lang::Locale( "en", "US", ""));
+    }
+
+    SetFirstDate( maCurDate );
+    ImplCalendarSelectDate( mpSelectTable.get(), maCurDate, true );
+
+    // Sonstige Strings erzeugen
+    maDayText = VclResId(STR_SVT_CALENDAR_DAY);
+    maWeekText = VclResId(STR_SVT_CALENDAR_WEEK);
+
+    // Tagestexte anlegen
+    for (sal_Int32 i = 0; i < 31; ++i)
+        maDayTexts[i] = OUString::number(i+1);
+
+    ImplInitSettings();
+}
+
+void Calendar::ApplySettings(vcl::RenderContext& rRenderContext)
+{
+    const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings();
+    maSelColor = rStyleSettings.GetHighlightTextColor();
+    SetPointFont(rRenderContext, rStyleSettings.GetToolFont());
+    rRenderContext.SetTextColor(rStyleSettings.GetFieldTextColor());
+    rRenderContext.SetBackground(Wallpaper(rStyleSettings.GetFieldColor()));
+}
+
+void Calendar::ImplInitSettings()
+{
+    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+    maSelColor = rStyleSettings.GetHighlightTextColor();
+    SetPointFont(*this, rStyleSettings.GetToolFont());
+    SetTextColor(rStyleSettings.GetFieldTextColor());
+    SetBackground(Wallpaper(rStyleSettings.GetFieldColor()));
+}
+
+Calendar::Calendar( vcl::Window* pParent, WinBits nWinStyle ) :
+    Control( pParent, nWinStyle & (WB_TABSTOP | WB_GROUP | WB_BORDER | WB_3DLOOK) ),
+    maCalendarWrapper( Application::GetAppLocaleDataWrapper().getComponentContext() ),
+    maOldFormatFirstDate( 0, 0, 1900 ),
+    maOldFormatLastDate( 0, 0, 1900 ),
+    maFirstDate( 0, 0, 1900 ),
+    maOldFirstDate( 0, 0, 1900 ),
+    maCurDate( Date::SYSTEM ),
+    maOldCurDate( 0, 0, 1900 )
+{
+    ImplInit( nWinStyle );
+}
+
+Calendar::~Calendar()
+{
+    disposeOnce();
+}
+
+void Calendar::dispose()
+{
+    mpSelectTable.reset();
+    mpOldSelectTable.reset();
+    Control::dispose();
+}
+
+DayOfWeek Calendar::ImplGetWeekStart() const
+{
+    // Map i18n::Weekdays to Date DayOfWeek
+    DayOfWeek eDay;
+    sal_Int16 nDay = maCalendarWrapper.getFirstDayOfWeek();
+    switch (nDay)
+    {
+        case i18n::Weekdays::SUNDAY :
+            eDay = SUNDAY;
+            break;
+        case i18n::Weekdays::MONDAY :
+            eDay = MONDAY;
+            break;
+        case i18n::Weekdays::TUESDAY :
+            eDay = TUESDAY;
+            break;
+        case i18n::Weekdays::WEDNESDAY :
+            eDay = WEDNESDAY;
+            break;
+        case i18n::Weekdays::THURSDAY :
+            eDay = THURSDAY;
+            break;
+        case i18n::Weekdays::FRIDAY :
+            eDay = FRIDAY;
+            break;
+        case i18n::Weekdays::SATURDAY :
+            eDay = SATURDAY;
+            break;
+        default:
+            SAL_WARN( "vcl.control", "Calendar::ImplGetWeekStart: broken i18n Gregorian calendar (getFirstDayOfWeek())");
+            eDay = SUNDAY;
+    }
+    return eDay;
+}
+
+void Calendar::ImplFormat()
+{
+    if ( !mbFormat )
+        return;
+
+    if ( mbCalc )
+    {
+        Size aOutSize = GetOutputSizePixel();
+
+        if ( (aOutSize.Width() <= 1) || (aOutSize.Height() <= 1) )
+            return;
+
+        OUString const a99Text("99");
+
+        long n99TextWidth = GetTextWidth( a99Text );
+        long nTextHeight = GetTextHeight();
+
+        // calculate width and x-position
+        mnDayWidth      = n99TextWidth+DAY_OFFX;
+        mnMonthWidth    = mnDayWidth*7;
+        mnMonthWidth   += MONTH_BORDERX*2;
+        mnMonthPerLine  = aOutSize.Width() / mnMonthWidth;
+        if ( !mnMonthPerLine )
+            mnMonthPerLine = 1;
+        long nOver      = (aOutSize.Width()-(mnMonthPerLine*mnMonthWidth)) / mnMonthPerLine;
+        mnMonthWidth   += nOver;
+        mnDaysOffX      = MONTH_BORDERX;
+        mnDaysOffX     += nOver/2;
+
+        // calculate height and y-position
+        mnDayHeight     = nTextHeight + DAY_OFFY;
+        mnWeekDayOffY   = nTextHeight + TITLE_OFFY + (TITLE_BORDERY*2);
+        mnDaysOffY      = mnWeekDayOffY + nTextHeight + WEEKDAY_OFFY;
+        mnMonthHeight   = (mnDayHeight*6) + mnDaysOffY;
+        mnMonthHeight  += MONTH_OFFY;
+        mnLines         = aOutSize.Height() / mnMonthHeight;
+        if ( !mnLines )
+            mnLines = 1;
+        mnMonthHeight  += (aOutSize.Height()-(mnLines*mnMonthHeight)) / mnLines;
+
+        // calculate spinfields
+        long nSpinSize      = nTextHeight+TITLE_BORDERY-SPIN_OFFY;
+        maPrevRect.SetLeft( SPIN_OFFX );
+        maPrevRect.SetTop( SPIN_OFFY );
+        maPrevRect.SetRight( maPrevRect.Left()+nSpinSize );
+        maPrevRect.SetBottom( maPrevRect.Top()+nSpinSize );
+        maNextRect.SetLeft( aOutSize.Width()-SPIN_OFFX-nSpinSize-1 );
+        maNextRect.SetTop( SPIN_OFFY );
+        maNextRect.SetRight( maNextRect.Left()+nSpinSize );
+        maNextRect.SetBottom( maNextRect.Top()+nSpinSize );
+
+        // Calculate DayOfWeekText (gets displayed in a narrow font)
+        maDayOfWeekText.clear();
+        long nStartOffX = 0;
+        sal_Int16 nDay = maCalendarWrapper.getFirstDayOfWeek();
+        for ( sal_Int16 nDayOfWeek = 0; nDayOfWeek < 7; nDayOfWeek++ )
+        {
+            // Use narrow name.
+            OUString aDayOfWeek( maCalendarWrapper.getDisplayName(
+                        i18n::CalendarDisplayIndex::DAY, nDay, 2));
+            long nOffX = (mnDayWidth-GetTextWidth( aDayOfWeek ))/2;
+            if ( !nDayOfWeek )
+                nStartOffX = nOffX;
+            else
+                nOffX -= nStartOffX;
+            nOffX += nDayOfWeek * mnDayWidth;
+            mnDayOfWeekAry[nDayOfWeek] = nOffX;
+            maDayOfWeekText += aDayOfWeek;
+            nDay++;
+            nDay %= 7;
+        }
+
+        mbCalc = false;
+    }
+
+    // calculate number of days
+
+    DayOfWeek eStartDay = ImplGetWeekStart();
+
+    sal_uInt16 nWeekDay;
+    Date aTempDate = GetFirstMonth();
+    maFirstDate = aTempDate;
+    nWeekDay = static_cast<sal_uInt16>(aTempDate.GetDayOfWeek());
+    nWeekDay = (nWeekDay+(7-static_cast<sal_uInt16>(eStartDay))) % 7;
+    maFirstDate.AddDays( -nWeekDay );
+    mnDayCount = nWeekDay;
+    sal_uInt16 nDaysInMonth;
+    sal_uInt16 nMonthCount = static_cast<sal_uInt16>(mnMonthPerLine*mnLines);
+    for ( sal_uInt16 i = 0; i < nMonthCount; i++ )
+    {
+        nDaysInMonth = aTempDate.GetDaysInMonth();
+        mnDayCount += nDaysInMonth;
+        aTempDate.AddDays( nDaysInMonth );
+    }
+    Date aTempDate2 = aTempDate;
+    --aTempDate2;
+    nDaysInMonth = aTempDate2.GetDaysInMonth();
+    aTempDate2.AddDays( -(nDaysInMonth-1) );
+    nWeekDay = static_cast<sal_uInt16>(aTempDate2.GetDayOfWeek());
+    nWeekDay = (nWeekDay+(7-static_cast<sal_uInt16>(eStartDay))) % 7;
+    mnDayCount += 42-nDaysInMonth-nWeekDay;
+
+    // determine colours
+    maOtherColor = COL_LIGHTGRAY;
+    if ( maOtherColor.IsRGBEqual( GetBackground().GetColor() ) )
+        maOtherColor = COL_GRAY;
+
+    Date aLastDate = GetLastDate();
+    if ( (maOldFormatLastDate != aLastDate) ||
+         (maOldFormatFirstDate != maFirstDate) )
+    {
+        maOldFormatFirstDate = maFirstDate;
+        maOldFormatLastDate  = aLastDate;
+    }
+
+    // get DateInfo
+    sal_Int16 nNewFirstYear = maFirstDate.GetYear();
+    sal_Int16 nNewLastYear = GetLastDate().GetYear();
+    if ( mnFirstYear )
+    {
+        if ( nNewFirstYear < mnFirstYear )
+        {
+            mnFirstYear = nNewFirstYear;
+        }
+        if ( nNewLastYear > mnLastYear )
+        {
+            mnLastYear = nNewLastYear;
+        }
+    }
+    else
+    {
+        mnFirstYear = nNewFirstYear;
+        mnLastYear = nNewLastYear;
+    }
+
+    mbFormat = false;
+}
+
+sal_uInt16 Calendar::ImplHitTest( const Point& rPos, Date& rDate ) const
+{
+    if ( mbFormat )
+        return 0;
+
+    if ( maPrevRect.IsInside( rPos ) )
+        return CALENDAR_HITTEST_PREV;
+    else if ( maNextRect.IsInside( rPos ) )
+        return CALENDAR_HITTEST_NEXT;
+
+    long        nY;
+    long        nOffX;
+    sal_Int32   nDay;
+    DayOfWeek   eStartDay = ImplGetWeekStart();
+
+    rDate = GetFirstMonth();
+    nY = 0;
+    for ( long i = 0; i < mnLines; i++ )
+    {
+        if ( rPos.Y() < nY )
+            return 0;
+
+        long nX = 0;
+        long nYMonth = nY+mnMonthHeight;
+        for ( long j = 0; j < mnMonthPerLine; j++ )
+        {
+            if ( (rPos.X() < nX) && (rPos.Y() < nYMonth) )
+                return 0;
+
+            sal_uInt16 nDaysInMonth = rDate.GetDaysInMonth();
+
+            // matching month was found
+            if ( (rPos.X() > nX) && (rPos.Y() < nYMonth) &&
+                 (rPos.X() < nX+mnMonthWidth) )
+            {
+                if ( rPos.Y() < (nY+(TITLE_BORDERY*2)+mnDayHeight))
+                    return CALENDAR_HITTEST_MONTHTITLE;
+                else
+                {
+                    long nDayX = nX+mnDaysOffX;
+                    long nDayY = nY+mnDaysOffY;
+                    if ( rPos.Y() < nDayY )
+                        return 0;
+                    sal_Int32 nDayIndex = static_cast<sal_Int32>(rDate.GetDayOfWeek());
+                    nDayIndex = (nDayIndex+(7-static_cast<sal_Int32>(eStartDay))) % 7;
+                    if ( (i == 0) && (j == 0) )
+                    {
+                        Date aTempDate = rDate;
+                        aTempDate.AddDays( -nDayIndex );
+                        for ( nDay = 0; nDay < nDayIndex; nDay++ )
+                        {
+                            nOffX = nDayX + (nDay*mnDayWidth);
+                            if ( (rPos.Y() >= nDayY) && (rPos.Y() < nDayY+mnDayHeight) &&
+                                 (rPos.X() >= nOffX) && (rPos.X() < nOffX+mnDayWidth) )
+                            {
+                                rDate = aTempDate;
+                                rDate.AddDays( nDay );
+                                return CALENDAR_HITTEST_DAY;
+                            }
+                        }
+                    }
+                    for ( nDay = 1; nDay <= nDaysInMonth; nDay++ )
+                    {
+                        if ( rPos.Y() < nDayY )
+                        {
+                            rDate.AddDays( nDayIndex );
+                            return 0;
+                        }
+                        nOffX = nDayX + (nDayIndex*mnDayWidth);
+                        if ( (rPos.Y() >= nDayY) && (rPos.Y() < nDayY+mnDayHeight) &&
+                             (rPos.X() >= nOffX) && (rPos.X() < nOffX+mnDayWidth) )
+                        {
+                            rDate.AddDays( nDay-1 );
+                            return CALENDAR_HITTEST_DAY;
+                        }
+                        if ( nDayIndex == 6 )
+                        {
+                            nDayIndex = 0;
+                            nDayY += mnDayHeight;
+                        }
+                        else
+                            nDayIndex++;
+                    }
+                    if ( (i == mnLines-1) && (j == mnMonthPerLine-1) )
+                    {
+                        sal_uInt16 nWeekDay = static_cast<sal_uInt16>(rDate.GetDayOfWeek());
+                        nWeekDay = (nWeekDay+(7-static_cast<sal_uInt16>(eStartDay))) % 7;
+                        sal_Int32 nDayCount = 42-nDaysInMonth-nWeekDay;
+                        Date aTempDate = rDate;
+                        aTempDate.AddDays( nDaysInMonth );
+                        for ( nDay = 1; nDay <= nDayCount; nDay++ )
+                        {
+                            if ( rPos.Y() < nDayY )
+                            {
+                                rDate.AddDays( nDayIndex );
+                                return 0;
+                            }
+                            nOffX = nDayX + (nDayIndex*mnDayWidth);
+                            if ( (rPos.Y() >= nDayY) && (rPos.Y() < nDayY+mnDayHeight) &&
+                                 (rPos.X() >= nOffX) && (rPos.X() < nOffX+mnDayWidth) )
+                            {
+                                rDate = aTempDate;
+                                rDate.AddDays( nDay-1 );
+                                return CALENDAR_HITTEST_DAY;
+                            }
+                            if ( nDayIndex == 6 )
+                            {
+                                nDayIndex = 0;
+                                nDayY += mnDayHeight;
+                            }
+                            else
+                                nDayIndex++;
+                        }
+                    }
+                }
+            }
+
+            rDate.AddDays( nDaysInMonth );
+            nX += mnMonthWidth;
+        }
+
+        nY += mnMonthHeight;
+    }
+
+    return 0;
+}
+
+namespace
+{
+
+void ImplDrawSpinArrow(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect, bool bPrev)
+{
+    long i;
+    long n;
+    long nLines;
+    long nHeight = rRect.GetHeight();
+    long nWidth = rRect.GetWidth();
+    if (nWidth < nHeight)
+        n = nWidth;
+    else
+        n = nHeight;
+    if (!(n & 0x01))
+        n--;
+    nLines = n/2;
+
+    tools::Rectangle aRect(Point( rRect.Left() + (nWidth / 2) - (nLines / 2),
+                            rRect.Top() + (nHeight / 2) ),
+                     Size(1, 1));
+    if (!bPrev)
+    {
+        aRect.AdjustLeft(nLines );
+        aRect.AdjustRight(nLines );
+    }
+
+    rRenderContext.DrawRect(aRect);
+    for (i = 0; i < nLines; i++)
+    {
+        if (bPrev)
+        {
+            aRect.AdjustLeft( 1 );
+            aRect.AdjustRight( 1 );
+        }
+        else
+        {
+            aRect.AdjustLeft( -1 );
+            aRect.AdjustRight( -1 );
+        }
+        aRect.AdjustTop( -1 );
+        aRect.AdjustBottom( 1 );
+        rRenderContext.DrawRect(aRect);
+    }
+}
+
+} //end anonymous namespace
+
+void Calendar::ImplDrawSpin(vcl::RenderContext& rRenderContext )
+{
+    rRenderContext.SetLineColor();
+    rRenderContext.SetFillColor(rRenderContext.GetSettings().GetStyleSettings().GetButtonTextColor());
+    tools::Rectangle aOutRect = maPrevRect;
+    aOutRect.AdjustLeft(3 );
+    aOutRect.AdjustTop(3 );
+    aOutRect.AdjustRight( -3 );
+    aOutRect.AdjustBottom( -3 );
+    ImplDrawSpinArrow(rRenderContext, aOutRect, true);
+    aOutRect = maNextRect;
+    aOutRect.AdjustLeft(3 );
+    aOutRect.AdjustTop(3 );
+    aOutRect.AdjustRight( -3 );
+    aOutRect.AdjustBottom( -3 );
+    ImplDrawSpinArrow(rRenderContext, aOutRect, false);
+}
+
+void Calendar::ImplDrawDate(vcl::RenderContext& rRenderContext,
+                            long nX, long nY,
+                            sal_uInt16 nDay, sal_uInt16 nMonth, sal_Int16 nYear,
+                            bool bOther, sal_Int32 nToday )
+{
+    Color const * pTextColor = nullptr;
+    const OUString& rDay = maDayTexts[nDay - 1];
+    tools::Rectangle aDateRect(nX, nY, nX + mnDayWidth - 1, nY + mnDayHeight - 1);
+
+    bool bSel = false;
+    bool bFocus = false;
+    // actual day
+    if ((nDay   == maCurDate.GetDay()) &&
+        (nMonth == maCurDate.GetMonth()) &&
+        (nYear  == maCurDate.GetYear()))
+    {
+        bFocus = true;
+    }
+    if (mpSelectTable)
+    {
+        if (mpSelectTable->find(Date(nDay, nMonth, nYear).GetDate()) != mpSelectTable->end())
+            bSel = true;
+    }
+
+    // get textcolour
+    if (bSel)
+        pTextColor = &maSelColor;
+    else if (bOther)
+        pTextColor = &maOtherColor;
+
+    if (bFocus)
+        HideFocus();
+
+    // display background
+    const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings();
+    if (bSel)
+    {
+        rRenderContext.SetLineColor();
+        rRenderContext.SetFillColor(rStyleSettings.GetHighlightColor());
+        rRenderContext.DrawRect(aDateRect);
+    }
+
+    // display text
+    long nTextX = nX + (mnDayWidth - GetTextWidth(rDay)) - (DAY_OFFX / 2);
+    long nTextY = nY + (mnDayHeight - GetTextHeight()) / 2;
+    if (pTextColor)
+    {
+        Color aOldColor = rRenderContext.GetTextColor();
+        rRenderContext.SetTextColor(*pTextColor);
+        rRenderContext.DrawText(Point(nTextX, nTextY), rDay);
+        rRenderContext.SetTextColor(aOldColor);
+    }
+    else
+        rRenderContext.DrawText(Point(nTextX, nTextY), rDay);
+
+    // today
+    Date aTodayDate(maCurDate);
+    if (nToday)
+        aTodayDate.SetDate(nToday);
+    else
+        aTodayDate = Date(Date::SYSTEM);
+    if ((nDay   == aTodayDate.GetDay()) &&
+        (nMonth == aTodayDate.GetMonth()) &&
+        (nYear  == aTodayDate.GetYear()))
+    {
+        rRenderContext.SetLineColor(rStyleSettings.GetWindowTextColor());
+        rRenderContext.SetFillColor();
+        rRenderContext.DrawRect(aDateRect);
+    }
+
+    // if needed do FocusRect
+    if (bFocus && HasFocus())
+        ShowFocus(aDateRect);
+}
+
+void Calendar::ImplDraw(vcl::RenderContext& rRenderContext)
+{
+    ImplFormat();
+
+    const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings();
+    Size aOutSize(GetOutputSizePixel());
+    long i;
+    long j;
+    long nY;
+    long nDeltaX;
+    long nDeltaY;
+    long nDayX;
+    long nDayY;
+    sal_Int32 nToday = Date(Date::SYSTEM).GetDate();
+    sal_uInt16 nDay;
+    sal_uInt16 nMonth;
+    sal_Int16 nYear;
+    Date aDate = GetFirstMonth();
+    DayOfWeek eStartDay = ImplGetWeekStart();
+
+    HideFocus();
+
+    nY = 0;
+    for (i = 0; i < mnLines; i++)
+    {
+        // display title bar
+        rRenderContext.SetLineColor();
+        rRenderContext.SetFillColor(rStyleSettings.GetFaceColor());
+        tools::Rectangle aTitleRect(0, nY, aOutSize.Width() - 1, nY + mnDayHeight - DAY_OFFY + TITLE_BORDERY * 2);
+        rRenderContext.DrawRect(aTitleRect);
+        Point aTopLeft1(aTitleRect.Left(), aTitleRect.Top());
+        Point aTopLeft2(aTitleRect.Left(), aTitleRect.Top() + 1);
+        Point aBottomRight1(aTitleRect.Right(), aTitleRect.Bottom());
+        Point aBottomRight2(aTitleRect.Right(), aTitleRect.Bottom() - 1);
+        rRenderContext.SetLineColor(rStyleSettings.GetDarkShadowColor());
+        rRenderContext.DrawLine(aTopLeft1, Point(aBottomRight1.X(), aTopLeft1.Y()));
+        rRenderContext.SetLineColor(rStyleSettings.GetLightColor() );
+        rRenderContext.DrawLine(aTopLeft2, Point(aBottomRight2.X(), aTopLeft2.Y()));
+        rRenderContext.DrawLine(aTopLeft2, Point(aTopLeft2.X(), aBottomRight2.Y()));
+        rRenderContext.SetLineColor(rStyleSettings.GetShadowColor() );
+        rRenderContext.DrawLine(Point(aTopLeft2.X(), aBottomRight2.Y()), aBottomRight2);
+        rRenderContext.DrawLine(Point(aBottomRight2.X(), aTopLeft2.Y()), aBottomRight2);
+        rRenderContext.SetLineColor(rStyleSettings.GetDarkShadowColor());
+        rRenderContext.DrawLine(Point(aTopLeft1.X(), aBottomRight1.Y()), aBottomRight1);
+        Point aSepPos1(0, aTitleRect.Top() + TITLE_BORDERY);
+        Point aSepPos2(0, aTitleRect.Bottom() - TITLE_BORDERY);
+        for (j = 0; j < mnMonthPerLine-1; j++)
+        {
+            aSepPos1.AdjustX(mnMonthWidth-1 );
+            aSepPos2.setX( aSepPos1.X() );
+            rRenderContext.SetLineColor(rStyleSettings.GetShadowColor());
+            rRenderContext.DrawLine(aSepPos1, aSepPos2);
+            aSepPos1.AdjustX( 1 );
+            aSepPos2.setX( aSepPos1.X() );
+            rRenderContext.SetLineColor(rStyleSettings.GetLightColor());
+            rRenderContext.DrawLine(aSepPos1, aSepPos2);
+        }
+
+        long nX = 0;
+        for (j = 0; j < mnMonthPerLine; j++)
+        {
+            nMonth  = aDate.GetMonth();
+            nYear   = aDate.GetYear();
+
+            // display month in title bar
+            nDeltaX = nX;
+            nDeltaY = nY + TITLE_BORDERY;
+            OUString aMonthText = maCalendarWrapper.getDisplayName(i18n::CalendarDisplayIndex::MONTH, nMonth - 1, 1)
+                    + " "
+                    + OUString::number(nYear);
+            long nMonthTextWidth = rRenderContext.GetTextWidth(aMonthText);
+            long nMonthOffX1 = 0;
+            long nMonthOffX2 = 0;
+            if (i == 0)
+            {
+                if (j == 0)
+                    nMonthOffX1 = maPrevRect.Right() + 1;
+                if (j == mnMonthPerLine - 1)
+                    nMonthOffX2 = aOutSize.Width() - maNextRect.Left() + 1;
+            }
+            long nMaxMonthWidth = mnMonthWidth - nMonthOffX1 - nMonthOffX2 - 4;
+            if (nMonthTextWidth > nMaxMonthWidth)
+            {
+                // Abbreviated month name.
+                aMonthText  = maCalendarWrapper.getDisplayName(i18n::CalendarDisplayIndex::MONTH, nMonth - 1, 0)
+                            + " "
+                            + OUString::number(nYear);
+                nMonthTextWidth = rRenderContext.GetTextWidth(aMonthText);
+            }
+            long nTempOff = (mnMonthWidth - nMonthTextWidth + 1) / 2;
+            if (nTempOff < nMonthOffX1)
+                nDeltaX += nMonthOffX1 + 1;
+            else
+            {
+                if (nTempOff + nMonthTextWidth > mnMonthWidth - nMonthOffX2)
+                    nDeltaX += mnMonthWidth - nMonthOffX2 - nMonthTextWidth;
+                else
+                    nDeltaX += nTempOff;
+            }
+            rRenderContext.SetTextColor(rStyleSettings.GetButtonTextColor());
+            rRenderContext.DrawText(Point(nDeltaX, nDeltaY), aMonthText);
+            rRenderContext.SetTextColor(rStyleSettings.GetWindowTextColor());
+
+            // display week bar
+            nDayX = nX + mnDaysOffX;
+            nDayY = nY + mnWeekDayOffY;
+            nDeltaY = nDayY + mnDayHeight;
+            rRenderContext.SetLineColor(rStyleSettings.GetWindowTextColor());
+            Point aStartPos(nDayX, nDeltaY);
+            rRenderContext.DrawLine(aStartPos, Point(nDayX + (7 * mnDayWidth), nDeltaY));
+            rRenderContext.DrawTextArray(Point(nDayX + mnDayOfWeekAry[0], nDayY), maDayOfWeekText, &(mnDayOfWeekAry[1]));
+
+            // display days
+            sal_uInt16 nDaysInMonth = aDate.GetDaysInMonth();
+            nDayX = nX + mnDaysOffX;
+            nDayY = nY + mnDaysOffY;
+            sal_uInt16 nDayIndex = static_cast<sal_uInt16>(aDate.GetDayOfWeek());
+            nDayIndex = (nDayIndex + (7 - static_cast<sal_uInt16>(eStartDay))) % 7;
+            if (i == 0 && j == 0)
+            {
+                Date aTempDate = aDate;
+                aTempDate.AddDays( -nDayIndex );
+                for (nDay = 0; nDay < nDayIndex; ++nDay)
+                {
+                    nDeltaX = nDayX + (nDay * mnDayWidth);
+                    ImplDrawDate(rRenderContext, nDeltaX, nDayY, nDay + aTempDate.GetDay(),
+                                 aTempDate.GetMonth(), aTempDate.GetYear(),
+                                 true, nToday);
+                }
+            }
+            for (nDay = 1; nDay <= nDaysInMonth; nDay++)
+            {
+                nDeltaX = nDayX + (nDayIndex * mnDayWidth);
+                ImplDrawDate(rRenderContext, nDeltaX, nDayY, nDay, nMonth, nYear,
+                             false, nToday);
+                if (nDayIndex == 6)
+                {
+                    nDayIndex = 0;
+                    nDayY += mnDayHeight;
+                }
+                else
+                    nDayIndex++;
+            }
+            if ((i == mnLines - 1) && (j == mnMonthPerLine - 1))
+            {
+                sal_uInt16 nWeekDay = static_cast<sal_uInt16>(aDate.GetDayOfWeek());
+                nWeekDay = (nWeekDay + (7 - static_cast<sal_uInt16>(eStartDay))) % 7;
+                sal_uInt16 nDayCount = 42 - nDaysInMonth - nWeekDay;
+                Date aTempDate = aDate;
+                aTempDate.AddDays( nDaysInMonth );
+                for (nDay = 1; nDay <= nDayCount; ++nDay)
+                {
+                    nDeltaX = nDayX + (nDayIndex * mnDayWidth);
+                    ImplDrawDate(rRenderContext, nDeltaX, nDayY, nDay,
+                                 aTempDate.GetMonth(), aTempDate.GetYear(),
+                                 true, nToday);
+                    if (nDayIndex == 6)
+                    {
+                        nDayIndex = 0;
+                        nDayY += mnDayHeight;
+                    }
+                    else
+                        nDayIndex++;
+                }
+            }
+
+            aDate.AddDays( nDaysInMonth );
+            nX += mnMonthWidth;
+        }
+
+        nY += mnMonthHeight;
+    }
+
+    // draw spin buttons
+    ImplDrawSpin(rRenderContext);
+}
+
+void Calendar::ImplUpdateDate( const Date& rDate )
+{
+    if (IsReallyVisible() && IsUpdateMode())
+    {
+        tools::Rectangle aDateRect(GetDateRect(rDate));
+        if (!aDateRect.IsEmpty())
+        {
+            Invalidate(aDateRect);
+        }
+    }
+}
+
+void Calendar::ImplUpdateSelection( IntDateSet* pOld )
+{
+    IntDateSet*  pNew = mpSelectTable.get();
+
+    for (auto const& nKey : *pOld)
+    {
+        if ( pNew->find(nKey) == pNew->end() )
+        {
+            Date aTempDate(nKey);
+            ImplUpdateDate(aTempDate);
+        }
+    }
+
+    for (auto const& nKey : *pNew)
+    {
+        if ( pOld->find(nKey) == pOld->end() )
+        {
+            Date aTempDate(nKey);
+            ImplUpdateDate(aTempDate);
+        }
+    }
+}
+
+void Calendar::ImplMouseSelect( const Date& rDate, sal_uInt16 nHitTest )
+{
+    std::unique_ptr<IntDateSet> pOldSel(new IntDateSet( *mpSelectTable ));
+    Date    aOldDate = maCurDate;
+    Date    aTempDate = rDate;
+
+    if ( !(nHitTest & CALENDAR_HITTEST_DAY) )
+        --aTempDate;
+
+    if ( !(nHitTest & CALENDAR_HITTEST_DAY) )
+        aTempDate = maOldCurDate;
+    if ( aTempDate != maCurDate )
+    {
+        maCurDate = aTempDate;
+        ImplCalendarSelectDate( mpSelectTable.get(), aOldDate, false );
+        ImplCalendarSelectDate( mpSelectTable.get(), maCurDate, true );
+    }
+
+    bool bNewSel = *pOldSel != *mpSelectTable;
+    if ( (maCurDate != aOldDate) || bNewSel )
+    {
+        HideFocus();
+        if ( bNewSel )
+            ImplUpdateSelection( pOldSel.get() );
+        if ( !bNewSel || pOldSel->find( aOldDate.GetDate() ) == pOldSel->end() )
+            ImplUpdateDate( aOldDate );
+        // assure focus rectangle is displayed again
+        if ( HasFocus() || !bNewSel
+             || mpSelectTable->find( maCurDate.GetDate() ) == mpSelectTable->end() )
+            ImplUpdateDate( maCurDate );
+    }
+}
+
+void Calendar::ImplUpdate( bool bCalcNew )
+{
+    if (IsReallyVisible() && IsUpdateMode())
+    {
+        if (bCalcNew && !mbCalc)
+        {
+            Invalidate();
+        }
+        else if (!mbFormat && !mbCalc)
+        {
+            Invalidate();
+        }
+    }
+
+    if (bCalcNew)
+        mbCalc = true;
+    mbFormat = true;
+}
+
+void Calendar::ImplScroll( bool bPrev )
+{
+    Date aNewFirstMonth = GetFirstMonth();
+    if ( bPrev )
+    {
+        --aNewFirstMonth;
+        aNewFirstMonth.AddDays( -(aNewFirstMonth.GetDaysInMonth()-1));
+    }
+    else
+        aNewFirstMonth.AddDays( aNewFirstMonth.GetDaysInMonth());
+    SetFirstDate( aNewFirstMonth );
+}
+
+void Calendar::ImplShowMenu( const Point& rPos, const Date& rDate )
+{
+    EndSelection();
+
+    Date        aOldFirstDate = GetFirstMonth();
+    ScopedVclPtrInstance<PopupMenu> aPopupMenu;
+    sal_uInt16      nMonthOff;
+    sal_uInt16      nCurItemId;
+    sal_uInt16      nYear = rDate.GetYear()-1;
+    sal_uInt16      i;
+    sal_uInt16      j;
+    sal_uInt16      nYearIdCount = 1000;
+
+    nMonthOff = (rDate.GetYear()-aOldFirstDate.GetYear())*12;
+    if ( aOldFirstDate.GetMonth() < rDate.GetMonth() )
+        nMonthOff += rDate.GetMonth()-aOldFirstDate.GetMonth();
+    else
+        nMonthOff -= aOldFirstDate.GetMonth()-rDate.GetMonth();
+
+    // construct menu (include years with different months)
+    for ( i = 0; i < MENU_YEAR_COUNT; i++ )
+    {
+        VclPtrInstance<PopupMenu> pYearPopupMenu;
+        for ( j = 1; j <= 12; j++ )
+            pYearPopupMenu->InsertItem( nYearIdCount+j,
+                    maCalendarWrapper.getDisplayName(
+                        i18n::CalendarDisplayIndex::MONTH, j-1, 1));
+        aPopupMenu->InsertItem( 10+i, OUString::number( nYear+i ) );
+        aPopupMenu->SetPopupMenu( 10+i, pYearPopupMenu );
+        nYearIdCount += 1000;
+    }
+
+    mbMenuDown = true;
+    nCurItemId = aPopupMenu->Execute( this, rPos );
+    mbMenuDown = false;
+
+    if ( !nCurItemId )
+        return;
+
+    sal_uInt16 nTempMonthOff = nMonthOff % 12;
+    sal_uInt16 nTempYearOff = nMonthOff / 12;
+    sal_uInt16 nNewMonth = nCurItemId % 1000;
+    sal_uInt16 nNewYear = nYear+((nCurItemId-1000)/1000);
+    if ( nTempMonthOff < nNewMonth )
+        nNewMonth = nNewMonth - nTempMonthOff;
+    else
+    {
+        nNewYear--;
+        nNewMonth = 12-(nTempMonthOff-nNewMonth);
+    }
+    nNewYear = nNewYear - nTempYearOff;
+    SetFirstDate( Date( 1, nNewMonth, nNewYear ) );
+}
+
+void Calendar::ImplTracking( const Point& rPos, bool bRepeat )
+{
+    Date    aTempDate = maCurDate;
+    sal_uInt16  nHitTest = ImplHitTest( rPos, aTempDate );
+
+    if ( mbSpinDown )
+    {
+        mbPrevIn = (nHitTest & CALENDAR_HITTEST_PREV) != 0;
+        mbNextIn = (nHitTest & CALENDAR_HITTEST_NEXT) != 0;
+
+        if ( bRepeat && (mbPrevIn || mbNextIn) )
+        {
+            ImplScroll( mbPrevIn );
+        }
+    }
+    else
+        ImplMouseSelect( aTempDate, nHitTest );
+}
+
+void Calendar::ImplEndTracking( bool bCancel )
+{
+    bool bSelection = mbSelection;
+    bool bSpinDown = mbSpinDown;
+
+    mbDrag              = false;
+    mbSelection         = false;
+    mbSpinDown          = false;
+    mbPrevIn            = false;
+    mbNextIn            = false;
+
+    if ( bCancel )
+    {
+        if ( maOldFirstDate != maFirstDate )
+            SetFirstDate( maOldFirstDate );
+
+        if ( !bSpinDown )
+        {
+            std::unique_ptr<IntDateSet> pOldSel(new IntDateSet( *mpSelectTable ));
+            Date    aOldDate = maCurDate;
+            maCurDate       = maOldCurDate;
+            *mpSelectTable  = *mpOldSelectTable;
+            HideFocus();
+            ImplUpdateSelection( pOldSel.get() );
+            if ( pOldSel->find( aOldDate.GetDate() ) == pOldSel->end() )
+                ImplUpdateDate( aOldDate );
+            //  assure focus rectangle is displayed again
+            if ( HasFocus() || mpSelectTable->find( maCurDate.GetDate() ) == mpSelectTable->end() )
+                ImplUpdateDate( maCurDate );
+        }
+    }
+
+    if ( bSpinDown )
+        return;
+
+    if ( !bCancel )
+    {
+        // determine if we should scroll the visible area
+        if ( !mpSelectTable->empty() )
+        {
+            Date aFirstSelDate( *mpSelectTable->begin() );
+            Date aLastSelDate( *mpSelectTable->rbegin() );
+            if ( aLastSelDate < GetFirstMonth() )
+                ImplScroll( true );
+            else if ( GetLastMonth() < aFirstSelDate )
+                ImplScroll( false );
+        }
+    }
+
+    if ( mbAllSel ||
+         (!bCancel && ((maCurDate != maOldCurDate) || (*mpOldSelectTable != *mpSelectTable))) )
+        Select();
+
+    if ( !bSelection && (mnWinStyle & WB_TABSTOP) && !bCancel )
+        GrabFocus();
+
+    mpOldSelectTable.reset();
+}
+
+void Calendar::MouseButtonDown( const MouseEvent& rMEvt )
+{
+    if ( rMEvt.IsLeft() && !mbMenuDown )
+    {
+        Date    aTempDate = maCurDate;
+        sal_uInt16  nHitTest = ImplHitTest( rMEvt.GetPosPixel(), aTempDate );
+        if ( nHitTest )
+        {
+            if ( nHitTest & CALENDAR_HITTEST_MONTHTITLE )
+                ImplShowMenu( rMEvt.GetPosPixel(), aTempDate );
+            else
+            {
+                maOldFirstDate = maFirstDate;
+
+                mbPrevIn = (nHitTest & CALENDAR_HITTEST_PREV) != 0;
+                mbNextIn = (nHitTest & CALENDAR_HITTEST_NEXT) != 0;
+                if ( mbPrevIn || mbNextIn )
+                {
+                    mbSpinDown = true;
+                    ImplScroll( mbPrevIn );
+                    // it should really read BUTTONREPEAT, therefore do not
+                    // change it to SCROLLREPEAT, check with TH,
+                    // why it could be different (71775)
+                    StartTracking( StartTrackingFlags::ButtonRepeat );
+                }
+                else
+                {
+                    if ( (rMEvt.GetClicks() != 2) || !(nHitTest & CALENDAR_HITTEST_DAY) )
+                    {
+                        maOldCurDate = maCurDate;
+                        mpOldSelectTable.reset(new IntDateSet( *mpSelectTable ));
+
+                        if ( !mbSelection )
+                        {
+                            mbDrag = true;
+                            StartTracking();
+                        }
+
+                        ImplMouseSelect( aTempDate, nHitTest );
+                    }
+                    if (rMEvt.GetClicks() == 2)
+                        maActivateHdl.Call(this);
+                }
+            }
+        }
+
+        return;
+    }
+
+    Control::MouseButtonDown( rMEvt );
+}
+
+void Calendar::MouseButtonUp( const MouseEvent& rMEvt )
+{
+    if ( rMEvt.IsLeft() && mbSelection )
+        ImplEndTracking( false );
+    else
+        Control::MouseButtonUp( rMEvt );
+}
+
+void Calendar::MouseMove( const MouseEvent& rMEvt )
+{
+    if ( mbSelection && rMEvt.GetButtons() )
+        ImplTracking( rMEvt.GetPosPixel(), false );
+    else
+        Control::MouseMove( rMEvt );
+}
+
+void Calendar::Tracking( const TrackingEvent& rTEvt )
+{
+    Point aMousePos = rTEvt.GetMouseEvent().GetPosPixel();
+
+    if ( rTEvt.IsTrackingEnded() )
+        ImplEndTracking( rTEvt.IsTrackingCanceled() );
+    else
+        ImplTracking( aMousePos, rTEvt.IsTrackingRepeat() );
+}
+
+void Calendar::KeyInput( const KeyEvent& rKEvt )
+{
+    Date    aNewDate = maCurDate;
+
+    switch ( rKEvt.GetKeyCode().GetCode() )
+    {
+        case KEY_HOME:
+            aNewDate.SetDay( 1 );
+            break;
+
+        case KEY_END:
+            aNewDate.SetDay( aNewDate.GetDaysInMonth() );
+            break;
+
+        case KEY_LEFT:
+            --aNewDate;
+            break;
+
+        case KEY_RIGHT:
+            ++aNewDate;
+            break;
+
+        case KEY_UP:
+            aNewDate.AddDays( -7 );
+            break;
+
+        case KEY_DOWN:
+            aNewDate.AddDays( 7 );
+            break;
+
+        case KEY_PAGEUP:
+            {
+            Date aTempDate = aNewDate;
+            aTempDate.AddDays( -(aNewDate.GetDay()+1) );
+            aNewDate.AddDays( -aTempDate.GetDaysInMonth() );
+            }
+            break;
+
+        case KEY_PAGEDOWN:
+            aNewDate.AddDays( aNewDate.GetDaysInMonth() );
+            break;
+
+        case KEY_RETURN:
+            break;
+
+        default:
+            Control::KeyInput( rKEvt );
+            break;
+    }
+
+    if ( aNewDate != maCurDate )
+    {
+        SetCurDate( aNewDate );
+        mbTravelSelect = true;
+        Select();
+        mbTravelSelect = false;
+    }
+
+    if (rKEvt.GetKeyCode().GetCode() == KEY_RETURN)
+    {
+        if (maActivateHdl.IsSet())
+            maActivateHdl.Call(this);
+        else
+            Control::KeyInput(rKEvt);
+    }
+}
+
+void Calendar::Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& )
+{
+    ImplDraw(rRenderContext);
+}
+
+void Calendar::GetFocus()
+{
+    ImplUpdateDate( maCurDate );
+    Control::GetFocus();
+}
+
+void Calendar::LoseFocus()
+{
+    HideFocus();
+    Control::LoseFocus();
+}
+
+void Calendar::Resize()
+{
+    ImplUpdate( true );
+    Control::Resize();
+}
+
+void Calendar::RequestHelp( const HelpEvent& rHEvt )
+{
+    if ( rHEvt.GetMode() & (HelpEventMode::QUICK | HelpEventMode::BALLOON) )
+    {
+        Date aDate = maCurDate;
+        if ( GetDate( ScreenToOutputPixel( rHEvt.GetMousePosPixel() ), aDate ) )
+        {
+            tools::Rectangle aDateRect = GetDateRect( aDate );
+            Point aPt = OutputToScreenPixel( aDateRect.TopLeft() );
+            aDateRect.SetLeft( aPt.X() );
+            aDateRect.SetTop( aPt.Y() );
+            aPt = OutputToScreenPixel( aDateRect.BottomRight() );
+            aDateRect.SetRight( aPt.X() );
+            aDateRect.SetBottom( aPt.Y() );
+
+            if ( rHEvt.GetMode() & HelpEventMode::QUICK )
+            {
+                maCalendarWrapper.setGregorianDateTime( aDate);
+                sal_uInt16      nWeek = static_cast<sal_uInt16>(maCalendarWrapper.getValue( i18n::CalendarFieldIndex::WEEK_OF_YEAR));
+                sal_uInt16      nMonth = aDate.GetMonth();
+                OUString   aStr = maDayText
+                                + ": "
+                                + OUString::number(aDate.GetDayOfYear())
+                                + " / "
+                                + maWeekText
+                                + ": "
+                                + OUString::number(nWeek);
+        // if year is not the same, add it
+                if ( (nMonth == 12) && (nWeek == 1) )
+                {
+                    aStr += ",  " + OUString::number(aDate.GetNextYear());
+                }
+                else if ( (nMonth == 1) && (nWeek > 50) )
+                {
+                    aStr += ", " + OUString::number(aDate.GetYear()-1);
+                }
+                Help::ShowQuickHelp( this, aDateRect, aStr );
+                return;
+            }
+        }
+    }
+
+    Control::RequestHelp( rHEvt );
+}
+
+void Calendar::Command( const CommandEvent& rCEvt )
+{
+    if ( rCEvt.GetCommand() == CommandEventId::ContextMenu )
+    {
+        if ( !mbSelection && rCEvt.IsMouseEvent() )
+        {
+            Date    aTempDate = maCurDate;
+            sal_uInt16  nHitTest = ImplHitTest( rCEvt.GetMousePosPixel(), aTempDate );
+            if ( nHitTest & CALENDAR_HITTEST_MONTHTITLE )
+            {
+                ImplShowMenu( rCEvt.GetMousePosPixel(), aTempDate );
+                return;
+            }
+        }
+    }
+    else if ( rCEvt.GetCommand() == CommandEventId::Wheel )
+    {
+        const CommandWheelData* pData = rCEvt.GetWheelData();
+        if ( pData->GetMode() == CommandWheelMode::SCROLL )
+        {
+            long nNotchDelta = pData->GetNotchDelta();
+            if ( nNotchDelta < 0 )
+            {
+                while ( nNotchDelta < 0 )
+                {
+                    ImplScroll( true );
+                    nNotchDelta++;
+                }
+            }
+            else
+            {
+                while ( nNotchDelta > 0 )
+                {
+                    ImplScroll( false );
+                    nNotchDelta--;
+                }
+            }
+
+            return;
+        }
+    }
+
+    Control::Command( rCEvt );
+}
+
+void Calendar::StateChanged( StateChangedType nType )
+{
+    Control::StateChanged( nType );
+
+    if ( nType == StateChangedType::InitShow )
+        ImplFormat();
+}
+
+void Calendar::DataChanged( const DataChangedEvent& rDCEvt )
+{
+    Control::DataChanged( rDCEvt );
+
+    if ( (rDCEvt.GetType() == DataChangedEventType::FONTS) ||
+         (rDCEvt.GetType() == DataChangedEventType::FONTSUBSTITUTION) ||
+         ((rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&
+          (rDCEvt.GetFlags() & AllSettingsFlags::STYLE)) )
+    {
+        ImplInitSettings();
+        Invalidate();
+    }
+}
+
+void Calendar::Select()
+{
+    maSelectHdl.Call( this );
+}
+
+Date Calendar::GetFirstSelectedDate() const
+{
+    if ( !mpSelectTable->empty() )
+        return Date( *mpSelectTable->begin() );
+    else
+    {
+        Date aDate( 0, 0, 0 );
+        return aDate;
+    }
+}
+
+void Calendar::SetCurDate( const Date& rNewDate )
+{
+    if ( !rNewDate.IsValidAndGregorian() )
+        return;
+
+    if ( maCurDate == rNewDate )
+        return;
+
+    bool bUpdate    = IsVisible() && IsUpdateMode();
+    Date aOldDate   = maCurDate;
+    maCurDate       = rNewDate;
+
+    ImplCalendarSelectDate( mpSelectTable.get(), aOldDate, false );
+    ImplCalendarSelectDate( mpSelectTable.get(), maCurDate, true );
+
+    // shift actual date in the visible area
+    if ( mbFormat || (maCurDate < GetFirstMonth()) )
+        SetFirstDate( maCurDate );
+    else if ( maCurDate > GetLastMonth() )
+    {
+        Date aTempDate = GetLastMonth();
+        long nDateOff = maCurDate-aTempDate;
+        if ( nDateOff < 365 )
+        {
+            Date aFirstDate = GetFirstMonth();
+            aFirstDate.AddDays( aFirstDate.GetDaysInMonth() );
+            ++aTempDate;
+            while ( nDateOff > aTempDate.GetDaysInMonth() )
+            {
+                aFirstDate.AddDays( aFirstDate.GetDaysInMonth() );
+                sal_Int32 nDaysInMonth = aTempDate.GetDaysInMonth();
+                aTempDate.AddDays( nDaysInMonth );
+                nDateOff -= nDaysInMonth;
+            }
+            SetFirstDate( aFirstDate );
+        }
+        else
+            SetFirstDate( maCurDate );
+    }
+    else
+    {
+        if ( bUpdate )
+        {
+            HideFocus();
+            ImplUpdateDate( aOldDate );
+            ImplUpdateDate( maCurDate );
+        }
+    }
+}
+
+void Calendar::SetFirstDate( const Date& rNewFirstDate )
+{
+    if ( maFirstDate != rNewFirstDate )
+    {
+        maFirstDate = Date( 1, rNewFirstDate.GetMonth(), rNewFirstDate.GetYear() );
+        ImplUpdate();
+    }
+}
+
+Date Calendar::GetFirstMonth() const
+{
+    if ( maFirstDate.GetDay() > 1 )
+    {
+        if ( maFirstDate.GetMonth() == 12 )
+            return Date( 1, 1, maFirstDate.GetNextYear() );
+        else
+            return Date( 1, maFirstDate.GetMonth()+1, maFirstDate.GetYear() );
+    }
+    else
+        return maFirstDate;
+}
+
+Date Calendar::GetLastMonth() const
+{
+    Date aDate = GetFirstMonth();
+    sal_uInt16 nMonthCount = GetMonthCount();
+    for ( sal_uInt16 i = 0; i < nMonthCount; i++ )
+        aDate.AddDays( aDate.GetDaysInMonth() );
+    --aDate;
+    return aDate;
+}
+
+sal_uInt16 Calendar::GetMonthCount() const
+{
+    if ( mbFormat )
+        return 1;
+    else
+        return static_cast<sal_uInt16>(mnMonthPerLine*mnLines);
+}
+
+bool Calendar::GetDate( const Point& rPos, Date& rDate ) const
+{
+    Date    aDate = maCurDate;
+    sal_uInt16  nHitTest = ImplHitTest( rPos, aDate );
+    if ( nHitTest & CALENDAR_HITTEST_DAY )
+    {
+        rDate = aDate;
+        return true;
+    }
+    else
+        return false;
+}
+
+tools::Rectangle Calendar::GetDateRect( const Date& rDate ) const
+{
+    tools::Rectangle aRect;
+
+    if ( mbFormat || (rDate < maFirstDate) || (rDate > (maFirstDate+mnDayCount)) )
+        return aRect;
+
+    long    nX;
+    long    nY;
+    sal_Int32   nDaysOff;
+    sal_uInt16  nDayIndex;
+    Date    aDate = GetFirstMonth();
+
+    if ( rDate < aDate )
+    {
+        aRect = GetDateRect( aDate );
+        nDaysOff = aDate-rDate;
+        nX = nDaysOff*mnDayWidth;
+        aRect.AdjustLeft( -nX );
+        aRect.AdjustRight( -nX );
+        return aRect;
+    }
+    else
+    {
+        Date aLastDate = GetLastMonth();
+        if ( rDate > aLastDate )
+        {
+            sal_Int32 nWeekDay = static_cast<sal_Int32>(aLastDate.GetDayOfWeek());
+            nWeekDay = (nWeekDay+(7-ImplGetWeekStart())) % 7;
+            aLastDate.AddDays( -nWeekDay );
+            aRect = GetDateRect( aLastDate );
+            nDaysOff = rDate-aLastDate;
+            nDayIndex = 0;
+            for ( sal_Int32 i = 0; i <= nDaysOff; i++ )
+            {
+                if ( aLastDate == rDate )
+                {
+                    aRect.AdjustLeft(nDayIndex*mnDayWidth );
+                    aRect.SetRight( aRect.Left()+mnDayWidth );
+                    return aRect;
+                }
+                if ( nDayIndex == 6 )
+                {
+                    nDayIndex = 0;
+                    aRect.AdjustTop(mnDayHeight );
+                    aRect.AdjustBottom(mnDayHeight );
+                }
+                else
+                    nDayIndex++;
+                ++aLastDate;
+            }
+        }
+    }
+
+    nY = 0;
+    for ( long i = 0; i < mnLines; i++ )
+    {
+        nX = 0;
+        for ( long j = 0; j < mnMonthPerLine; j++ )
+        {
+            sal_uInt16 nDaysInMonth = aDate.GetDaysInMonth();
+
+            // month is called
+            if ( (aDate.GetMonth() == rDate.GetMonth()) &&
+                 (aDate.GetYear() == rDate.GetYear()) )
+            {
+                long nDayX = nX+mnDaysOffX;
+                long nDayY = nY+mnDaysOffY;
+                nDayIndex = static_cast<sal_uInt16>(aDate.GetDayOfWeek());
+                nDayIndex = (nDayIndex+(7-static_cast<sal_uInt16>(ImplGetWeekStart()))) % 7;
+                for ( sal_uInt16 nDay = 1; nDay <= nDaysInMonth; nDay++ )
+                {
+                    if ( nDay == rDate.GetDay() )
+                    {
+                        aRect.SetLeft( nDayX + (nDayIndex*mnDayWidth) );
+                        aRect.SetTop( nDayY );
+                        aRect.SetRight( aRect.Left()+mnDayWidth );
+                        aRect.SetBottom( aRect.Top()+mnDayHeight );
+                        break;
+                    }
+                    if ( nDayIndex == 6 )
+                    {
+                        nDayIndex = 0;
+                        nDayY += mnDayHeight;
+                    }
+                    else
+                        nDayIndex++;
+                }
+            }
+
+            aDate.AddDays( nDaysInMonth );
+            nX += mnMonthWidth;
+        }
+
+        nY += mnMonthHeight;
+    }
+
+    return aRect;
+}
+
+void Calendar::StartSelection()
+{
+    maOldCurDate = maCurDate;
+    mpOldSelectTable.reset(new IntDateSet( *mpSelectTable ));
+
+    mbSelection = true;
+}
+
+void Calendar::EndSelection()
+{
+    if ( mbDrag || mbSpinDown || mbSelection )
+    {
+        if ( !mbSelection )
+            ReleaseMouse();
+
+        mbDrag              = false;
+        mbSelection         = false;
+        mbSpinDown          = false;
+        mbPrevIn            = false;
+        mbNextIn            = false;
+    }
+}
+
+Size Calendar::CalcWindowSizePixel() const
+{
+    OUString  const a99Text("99");
+
+    Size    aSize;
+    long    n99TextWidth = GetTextWidth( a99Text );
+    long    nTextHeight = GetTextHeight();
+
+    aSize.AdjustWidth((n99TextWidth+DAY_OFFX)*7);
+    aSize.AdjustWidth(MONTH_BORDERX*2 );
+
+    aSize.setHeight( nTextHeight + TITLE_OFFY + (TITLE_BORDERY*2) );
+    aSize.AdjustHeight(nTextHeight + WEEKDAY_OFFY );
+    aSize.AdjustHeight((nTextHeight+DAY_OFFY)*6);
+    aSize.AdjustHeight(MONTH_OFFY );
+
+    return aSize;
+}
+
+Size Calendar::GetOptimalSize() const
+{
+    return CalcWindowSizePixel();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */