numbertools.cxx

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/* -*- 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/.
 */
 
#include <basegfx/utils/tools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
 
#include <rtl/strbuf.hxx>
#include <rtl/math.hxx>
 
namespace basegfx::utils
{
    B2DPolyPolygon number2PolyPolygon(double fValue, sal_Int32 nTotalDigits, sal_Int32 nDecPlaces, bool bLitSegments)
    {
        // config here
        // {
        const double fSpace=0.2;
        // }
        // config here
 
        OStringBuffer aNum;
        rtl::math::doubleToStringBuffer(aNum,
                                         fValue,
                                         rtl_math_StringFormat_F,
                                         nDecPlaces, '.',
                                         nullptr, ',');
 
        B2DPolyPolygon aRes;
        B2DHomMatrix aMat;
        double fCurrX=std::max(nTotalDigits-aNum.getLength(),
                               sal_Int32(0)) * (1.0+fSpace);
        for( sal_Int32 i=0; i<aNum.getLength(); ++i )
        {
            B2DPolyPolygon aCurr=createSevenSegmentPolyPolygon(aNum[i],
                                                bLitSegments);
 
            aMat.identity();
            aMat.translate(fCurrX,0.0);
            aCurr.transform(aMat);
 
            fCurrX += 1.0+fSpace;
 
            aRes.append(aCurr);
        }
 
        return aRes;
    }
 
}
 
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