basegfx/source/tools/numbertools.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <basegfx/utils/tools.hxx>
  11 #include <basegfx/matrix/b2dhommatrix.hxx>
  12 #include <basegfx/polygon/b2dpolypolygon.hxx>
  13 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  14
  15 #include <rtl/strbuf.hxx>
  16 #include <rtl/math.hxx>
  17
  18 namespace basegfx { namespace utils
  19 {
  20     B2DPolyPolygon number2PolyPolygon(double fValue, sal_Int32 nTotalDigits, sal_Int32 nDecPlaces, bool bLitSegments)
  21     {
  22         // config here
  23         // {
  24         const double fSpace=0.2;
  25         // }
  26         // config here
  27
  28         OStringBuffer aNum;
  29         rtl::math::doubleToStringBuffer(aNum,
  30                                          fValue,
  31                                          rtl_math_StringFormat_F,
  32                                          nDecPlaces, '.',
  33                                          nullptr, ',');
  34
  35         B2DPolyPolygon aRes;
  36         B2DHomMatrix aMat;
  37         double fCurrX=std::max(nTotalDigits-aNum.getLength(),
  38                                sal_Int32(0)) * (1.0+fSpace);
  39         for( sal_Int32 i=0; i<aNum.getLength(); ++i )
  40         {
  41             B2DPolyPolygon aCurr=createSevenSegmentPolyPolygon(aNum[i],
  42                                                 bLitSegments);
  43
  44             aMat.identity();
  45             aMat.translate(fCurrX,0.0);
  46             aCurr.transform(aMat);
  47
  48             fCurrX += 1.0+fSpace;
  49
  50             aRes.append(aCurr);
  51         }
  52
  53         return aRes;
  54     }
  55
  56 } }
  57
  58 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */