mirror of https://github.com/OpenTTD/OpenTTD.git
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/*
|
|
* This file is part of OpenTTD.
|
|
* 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.
|
|
* 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.
|
|
* 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/>.
|
|
*/
|
|
|
|
/** @file string_osx.h Functions related to localized text support on OSX. */
|
|
|
|
#ifndef STRING_OSX_H
|
|
#define STRING_OSX_H
|
|
|
|
#include "../../gfx_layout.h"
|
|
#include "../../string_base.h"
|
|
|
|
/** String iterator using CoreText as a backend. */
|
|
class OSXStringIterator : public StringIterator {
|
|
/** Break info for a character. */
|
|
struct CharInfo {
|
|
bool word_stop : 1; ///< Code point is suitable as a word break.
|
|
bool char_stop : 1; ///< Code point is the start of a grapheme cluster, i.e. a "character".
|
|
};
|
|
|
|
std::vector<CharInfo> str_info; ///< Break information for each code point.
|
|
std::vector<size_t> utf16_to_utf8; ///< Mapping from UTF-16 code point position to index in the UTF-8 source string.
|
|
|
|
size_t cur_pos; ///< Current iteration position.
|
|
|
|
public:
|
|
void SetString(const char *s) override;
|
|
size_t SetCurPosition(size_t pos) override;
|
|
size_t Next(IterType what) override;
|
|
size_t Prev(IterType what) override;
|
|
|
|
static std::unique_ptr<StringIterator> Create();
|
|
};
|
|
|
|
/**
|
|
* Helper class to construct a new #CoreTextParagraphLayout.
|
|
*/
|
|
class CoreTextParagraphLayoutFactory {
|
|
public:
|
|
/** Helper for GetLayouter, to get the right type. */
|
|
typedef UniChar CharType;
|
|
/** Helper for GetLayouter, to get whether the layouter supports RTL. */
|
|
static const bool SUPPORTS_RTL = true;
|
|
|
|
/**
|
|
* Get the actual ParagraphLayout for the given buffer.
|
|
* @param buff The begin of the buffer.
|
|
* @param buff_end The location after the last element in the buffer.
|
|
* @param fontMapping THe mapping of the fonts.
|
|
* @return The ParagraphLayout instance.
|
|
*/
|
|
static ParagraphLayouter *GetParagraphLayout(CharType *buff, CharType *buff_end, FontMap &fontMapping);
|
|
|
|
/**
|
|
* Append a wide character to the internal buffer.
|
|
* @param buff The buffer to append to.
|
|
* @param buffer_last The end of the buffer.
|
|
* @param c The character to add.
|
|
* @return The number of buffer spaces that were used.
|
|
*/
|
|
static size_t AppendToBuffer(CharType *buff, const CharType *buffer_last, char32_t c)
|
|
{
|
|
assert(buff < buffer_last);
|
|
if (c >= 0x010000U) {
|
|
/* Character is encoded using surrogates in UTF-16. */
|
|
if (buff + 1 <= buffer_last) {
|
|
buff[0] = (CharType)(((c - 0x010000U) >> 10) + 0xD800);
|
|
buff[1] = (CharType)(((c - 0x010000U) & 0x3FF) + 0xDC00);
|
|
} else {
|
|
/* Not enough space in buffer. */
|
|
*buff = 0;
|
|
}
|
|
return 2;
|
|
} else {
|
|
*buff = (CharType)(c & 0xFFFF);
|
|
return 1;
|
|
}
|
|
}
|
|
};
|
|
|
|
void MacOSResetScriptCache(FontSize size);
|
|
void MacOSSetCurrentLocaleName(const char *iso_code);
|
|
int MacOSStringCompare(std::string_view s1, std::string_view s2);
|
|
int MacOSStringContains(const std::string_view str, const std::string_view value, bool case_insensitive);
|
|
|
|
void MacOSRegisterExternalFont(const char *file_path);
|
|
|
|
#endif /* STRING_OSX_H */
|