filter/source/svg/units.hxx

   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 #ifndef INCLUDED_FILTER_SOURCE_SVG_UNITS_HXX
  10 #define INCLUDED_FILTER_SOURCE_SVG_UNITS_HXX
  11
  12 #include <sal/config.h>
  13 #include <rtl/ustring.hxx>
  14
  15 namespace svgi
  16 {
  17     // recommended value for this device dependent unit, see CSS2 section 4.3.2 Lengths
  18     // Same as in svgio
  19     #define F_SVG_PIXEL_PER_INCH  90.0
  20
  21     struct State;
  22     enum SvgUnit
  23     {
  24         SVG_LENGTH_UNIT_CM,
  25         SVG_LENGTH_UNIT_EM,
  26         SVG_LENGTH_UNIT_EX,
  27         SVG_LENGTH_UNIT_IN,
  28         SVG_LENGTH_UNIT_MM,
  29         SVG_LENGTH_UNIT_PC,
  30         SVG_LENGTH_UNIT_PT,
  31         SVG_LENGTH_UNIT_PX,
  32         SVG_LENGTH_UNIT_PERCENTAGE,
  33         SVG_LENGTH_UNIT_USER,
  34         SVG_LENGTH_FONT_SIZE
  35     };
  36
  37     /** return svg_length_t in 100th's of mm
  38          @param fVal value to convert
  39          @param unit unit the value is in
  40          @param rState current state (needed for viewport dimensions etc.)
  41          @param dir direction - either 'h' or 'v' for horizonal or vertical, resp.
  42      */
  43     double convLength( const OUString& sVal, SvgUnit unit, const State& rState, char dir );
  44
  45     /** return svg_length_t in 100th's of mm
  46          @param sValue value to convert
  47          @param rState current state (needed for viewport dimensions etc.)
  48          @param dir direction - either 'h' or 'v' for horizonal or vertical, resp.
  49      */
  50     double convLength( const OUString& sValue, const State& rState, char dir );
  51
  52     inline double pt2mm(double fVal) { return fVal*25.4/72.0; }
  53     inline double pt100thmm(double fVal) { return fVal*2540.0/72.0; }
  54
  55 } // namespace svgi
  56
  57 #endif
  58
  59 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */