src/gfx_layout_icu.h

   1 /*
   2  * This file is part of OpenTTD.
   3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   4  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   6  */
   7
   8 /** @file gfx_layout_icu.h Functions related to laying out the texts with ICU. */
   9
  10 #ifndef GFX_LAYOUT_ICU_H
  11 #define GFX_LAYOUT_ICU_H
  12
  13 #include "gfx_layout.h"
  14
  15 #include <unicode/brkiter.h>
  16 #include <unicode/ustring.h>
  17
  18 /**
  19  * Helper class to construct a new #ICUParagraphLayout.
  20  */
  21 class ICUParagraphLayoutFactory {
  22 public:
  23         /** Helper for GetLayouter, to get the right type. */
  24         typedef UChar CharType;
  25         /** Helper for GetLayouter, to get whether the layouter supports RTL. */
  26         static const bool SUPPORTS_RTL = true;
  27
  28         static ParagraphLayouter *GetParagraphLayout(UChar *buff, UChar *buff_end, FontMap &fontMapping);
  29         static size_t AppendToBuffer(UChar *buff, const UChar *buffer_last, char32_t c);
  30
  31         static void InitializeLayouter();
  32         static std::unique_ptr<icu::BreakIterator> GetBreakIterator();
  33 private:
  34         static std::unique_ptr<icu::BreakIterator> break_iterator;
  35 };
  36
  37 #endif /* GFX_LAYOUT_ICU_H */