Merge remote-tracking branch 'origin/master' into jgrpp
# Conflicts: # src/string.cpppull/73/head
Jonathan G Rennison
6 years ago
commit
2003a86932
@ -0,0 +1,450 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file string_osx.cpp Functions related to localized text support on OSX. */
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#include "../../stdafx.h"
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#include "string_osx.h"
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#include "../../string_func.h"
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#include "../../strings_func.h"
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#include "../../table/control_codes.h"
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#include "../../fontcache.h"
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#include "macos.h"
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#include <CoreFoundation/CoreFoundation.h>
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#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
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/** Cached current locale. */
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static CFLocaleRef _osx_locale = NULL;
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/** CoreText cache for font information, cleared when OTTD changes fonts. */
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static CTFontRef _font_cache[FS_END];
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/**
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* Wrapper for doing layouts with CoreText.
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*/
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class CoreTextParagraphLayout : public ParagraphLayouter {
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private:
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const CoreTextParagraphLayoutFactory::CharType *text_buffer;
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ptrdiff_t length;
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const FontMap& font_map;
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CTTypesetterRef typesetter;
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CFIndex cur_offset = 0; ///< Offset from the start of the current run from where to output.
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public:
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/** Visual run contains data about the bit of text with the same font. */
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class CoreTextVisualRun : public ParagraphLayouter::VisualRun {
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private:
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std::vector<GlyphID> glyphs;
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std::vector<float> positions;
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std::vector<int> glyph_to_char;
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int total_advance = 0;
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Font *font;
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public:
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CoreTextVisualRun(CTRunRef run, Font *font, const CoreTextParagraphLayoutFactory::CharType *buff);
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virtual const GlyphID *GetGlyphs() const { return &this->glyphs[0]; }
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virtual const float *GetPositions() const { return &this->positions[0]; }
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virtual const int *GetGlyphToCharMap() const { return &this->glyph_to_char[0]; }
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virtual const Font *GetFont() const { return this->font; }
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virtual int GetLeading() const { return this->font->fc->GetHeight(); }
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virtual int GetGlyphCount() const { return (int)this->glyphs.size(); }
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int GetAdvance() const { return this->total_advance; }
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};
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/** A single line worth of VisualRuns. */
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class CoreTextLine : public AutoDeleteSmallVector<CoreTextVisualRun *, 4>, public ParagraphLayouter::Line {
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public:
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CoreTextLine(CTLineRef line, const FontMap &fontMapping, const CoreTextParagraphLayoutFactory::CharType *buff)
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{
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CFArrayRef runs = CTLineGetGlyphRuns(line);
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for (CFIndex i = 0; i < CFArrayGetCount(runs); i++) {
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CTRunRef run = (CTRunRef)CFArrayGetValueAtIndex(runs, i);
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/* Extract font information for this run. */
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CFRange chars = CTRunGetStringRange(run);
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FontMap::const_iterator map = fontMapping.Begin();
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while (map < fontMapping.End() - 1 && map->first <= chars.location) map++;
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*this->Append() = new CoreTextVisualRun(run, map->second, buff);
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}
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CFRelease(line);
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}
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virtual int GetLeading() const;
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virtual int GetWidth() const;
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virtual int CountRuns() const { return this->Length(); }
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virtual const VisualRun *GetVisualRun(int run) const { return *this->Get(run); }
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int GetInternalCharLength(WChar c) const
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{
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/* CoreText uses UTF-16 internally which means we need to account for surrogate pairs. */
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return c >= 0x010000U ? 2 : 1;
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}
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};
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CoreTextParagraphLayout(CTTypesetterRef typesetter, const CoreTextParagraphLayoutFactory::CharType *buffer, ptrdiff_t len, const FontMap &fontMapping) : text_buffer(buffer), length(len), font_map(fontMapping), typesetter(typesetter)
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{
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this->Reflow();
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}
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virtual ~CoreTextParagraphLayout()
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{
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CFRelease(this->typesetter);
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}
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virtual void Reflow()
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{
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this->cur_offset = 0;
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}
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virtual const Line *NextLine(int max_width);
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};
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/** Get the width of an encoded sprite font character. */
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static CGFloat SpriteFontGetWidth(void *ref_con)
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{
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FontSize fs = (FontSize)((size_t)ref_con >> 24);
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WChar c = (WChar)((size_t)ref_con & 0xFFFFFF);
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return GetGlyphWidth(fs, c);
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}
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static CTRunDelegateCallbacks _sprite_font_callback = {
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kCTRunDelegateCurrentVersion, NULL, NULL, NULL,
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&SpriteFontGetWidth
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};
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/* static */ ParagraphLayouter *CoreTextParagraphLayoutFactory::GetParagraphLayout(CharType *buff, CharType *buff_end, FontMap &fontMapping)
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{
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if (!MacOSVersionIsAtLeast(10, 5, 0)) return NULL;
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/* Can't layout an empty string. */
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ptrdiff_t length = buff_end - buff;
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if (length == 0) return NULL;
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/* Can't layout our in-built sprite fonts. */
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for (FontMap::const_iterator i = fontMapping.Begin(); i != fontMapping.End(); i++) {
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if (i->second->fc->IsBuiltInFont()) return NULL;
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}
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/* Make attributed string with embedded font information. */
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CFMutableAttributedStringRef str = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
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CFAttributedStringBeginEditing(str);
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CFStringRef base = CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, buff, length, kCFAllocatorNull);
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CFAttributedStringReplaceString(str, CFRangeMake(0, 0), base);
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CFRelease(base);
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/* Apply font and colour ranges to our string. This is important to make sure
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* that we get proper glyph boundaries on style changes. */
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int last = 0;
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for (FontMap::const_iterator i = fontMapping.Begin(); i != fontMapping.End(); i++) {
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if (i->first - last == 0) continue;
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if (_font_cache[i->second->fc->GetSize()] == NULL) {
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/* Cache font information. */
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CFStringRef font_name = CFStringCreateWithCString(kCFAllocatorDefault, i->second->fc->GetFontName(), kCFStringEncodingUTF8);
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_font_cache[i->second->fc->GetSize()] = CTFontCreateWithName(font_name, i->second->fc->GetFontSize(), NULL);
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CFRelease(font_name);
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}
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CFAttributedStringSetAttribute(str, CFRangeMake(last, i->first - last), kCTFontAttributeName, _font_cache[i->second->fc->GetSize()]);
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CGColorRef color = CGColorCreateGenericGray((uint8)i->second->colour / 255.0f, 1.0f); // We don't care about the real colours, just that they are different.
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CFAttributedStringSetAttribute(str, CFRangeMake(last, i->first - last), kCTForegroundColorAttributeName, color);
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CGColorRelease(color);
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/* Install a size callback for our special sprite glyphs. */
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for (ssize_t c = last; c < i->first; c++) {
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if (buff[c] >= SCC_SPRITE_START && buff[c] <= SCC_SPRITE_END) {
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CTRunDelegateRef del = CTRunDelegateCreate(&_sprite_font_callback, (void *)(size_t)(buff[c] | (i->second->fc->GetSize() << 24)));
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CFAttributedStringSetAttribute(str, CFRangeMake(c, 1), kCTRunDelegateAttributeName, del);
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CFRelease(del);
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}
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}
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last = i->first;
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}
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CFAttributedStringEndEditing(str);
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/* Create and return typesetter for the string. */
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CTTypesetterRef typesetter = CTTypesetterCreateWithAttributedString(str);
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CFRelease(str);
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return typesetter != NULL ? new CoreTextParagraphLayout(typesetter, buff, length, fontMapping) : NULL;
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}
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/* virtual */ const CoreTextParagraphLayout::Line *CoreTextParagraphLayout::NextLine(int max_width)
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{
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if (this->cur_offset >= this->length) return NULL;
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/* Get line break position, trying word breaking first and breaking somewhere if that doesn't work. */
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CFIndex len = CTTypesetterSuggestLineBreak(this->typesetter, this->cur_offset, max_width);
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if (len <= 0) len = CTTypesetterSuggestClusterBreak(this->typesetter, this->cur_offset, max_width);
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/* Create line. */
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CTLineRef line = CTTypesetterCreateLine(this->typesetter, CFRangeMake(this->cur_offset, len));
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this->cur_offset += len;
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return line != NULL ? new CoreTextLine(line, this->font_map, this->text_buffer) : NULL;
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}
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CoreTextParagraphLayout::CoreTextVisualRun::CoreTextVisualRun(CTRunRef run, Font *font, const CoreTextParagraphLayoutFactory::CharType *buff) : font(font)
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{
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this->glyphs.resize(CTRunGetGlyphCount(run));
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/* Query map of glyphs to source string index. */
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CFIndex map[this->glyphs.size()];
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CTRunGetStringIndices(run, CFRangeMake(0, 0), map);
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this->glyph_to_char.resize(this->glyphs.size());
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for (size_t i = 0; i < this->glyph_to_char.size(); i++) this->glyph_to_char[i] = (int)map[i];
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CGPoint pts[this->glyphs.size()];
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CTRunGetPositions(run, CFRangeMake(0, 0), pts);
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this->positions.resize(this->glyphs.size() * 2 + 2);
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/* Convert glyph array to our data type. At the same time, substitute
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* the proper glyphs for our private sprite glyphs. */
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CGGlyph gl[this->glyphs.size()];
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CTRunGetGlyphs(run, CFRangeMake(0, 0), gl);
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for (size_t i = 0; i < this->glyphs.size(); i++) {
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if (buff[this->glyph_to_char[i]] >= SCC_SPRITE_START && buff[this->glyph_to_char[i]] <= SCC_SPRITE_END) {
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this->glyphs[i] = font->fc->MapCharToGlyph(buff[this->glyph_to_char[i]]);
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this->positions[i * 2 + 0] = pts[i].x;
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this->positions[i * 2 + 1] = font->fc->GetAscender() - font->fc->GetGlyph(this->glyphs[i])->height - 1; // Align sprite glyphs to font baseline.
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} else {
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this->glyphs[i] = gl[i];
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this->positions[i * 2 + 0] = pts[i].x;
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this->positions[i * 2 + 1] = pts[i].y;
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}
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}
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this->total_advance = (int)CTRunGetTypographicBounds(run, CFRangeMake(0, 0), NULL, NULL, NULL);
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this->positions[this->glyphs.size() * 2] = this->positions[0] + this->total_advance;
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}
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/**
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* Get the height of the line.
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* @return The maximum height of the line.
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*/
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int CoreTextParagraphLayout::CoreTextLine::GetLeading() const
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{
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int leading = 0;
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for (const CoreTextVisualRun * const *run = this->Begin(); run != this->End(); run++) {
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leading = max(leading, (*run)->GetLeading());
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}
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return leading;
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}
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/**
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* Get the width of this line.
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* @return The width of the line.
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*/
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int CoreTextParagraphLayout::CoreTextLine::GetWidth() const
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{
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if (this->Length() == 0) return 0;
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int total_width = 0;
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for (const CoreTextVisualRun * const *run = this->Begin(); run != this->End(); run++) {
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total_width += (*run)->GetAdvance();
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}
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return total_width;
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}
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/** Delete CoreText font reference for a specific font size. */
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void MacOSResetScriptCache(FontSize size)
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{
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if (_font_cache[size] != NULL) {
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CFRelease(_font_cache[size]);
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_font_cache[size] = NULL;
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}
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}
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/** Store current language locale as a CoreFounation locale. */
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void MacOSSetCurrentLocaleName(const char *iso_code)
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{
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if (!MacOSVersionIsAtLeast(10, 5, 0)) return;
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|
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if (_osx_locale != NULL) CFRelease(_osx_locale);
|
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|
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CFStringRef iso = CFStringCreateWithCString(kCFAllocatorNull, iso_code, kCFStringEncodingUTF8);
|
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_osx_locale = CFLocaleCreate(kCFAllocatorDefault, iso);
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CFRelease(iso);
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}
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|
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/**
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* Compares two strings using case insensitive natural sort.
|
||||
*
|
||||
* @param s1 First string to compare.
|
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* @param s2 Second string to compare.
|
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* @return 1 if s1 < s2, 2 if s1 == s2, 3 if s1 > s2, or 0 if not supported by the OS.
|
||||
*/
|
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int MacOSStringCompare(const char *s1, const char *s2)
|
||||
{
|
||||
static bool supported = MacOSVersionIsAtLeast(10, 5, 0);
|
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if (!supported) return 0;
|
||||
|
||||
CFStringCompareFlags flags = kCFCompareCaseInsensitive | kCFCompareNumerically | kCFCompareLocalized | kCFCompareWidthInsensitive | kCFCompareForcedOrdering;
|
||||
|
||||
CFStringRef cf1 = CFStringCreateWithCString(kCFAllocatorDefault, s1, kCFStringEncodingUTF8);
|
||||
CFStringRef cf2 = CFStringCreateWithCString(kCFAllocatorDefault, s2, kCFStringEncodingUTF8);
|
||||
|
||||
CFComparisonResult res = CFStringCompareWithOptionsAndLocale(cf1, cf2, CFRangeMake(0, CFStringGetLength(cf1)), flags, _osx_locale);
|
||||
|
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CFRelease(cf1);
|
||||
CFRelease(cf2);
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||||
|
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return (int)res + 2;
|
||||
}
|
||||
|
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|
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/* virtual */ void OSXStringIterator::SetString(const char *s)
|
||||
{
|
||||
const char *string_base = s;
|
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|
||||
this->utf16_to_utf8.clear();
|
||||
this->str_info.clear();
|
||||
this->cur_pos = 0;
|
||||
|
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/* CoreText operates on UTF-16, thus we have to convert the input string.
|
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* To be able to return proper offsets, we have to create a mapping at the same time. */
|
||||
std::vector<UniChar> utf16_str; ///< UTF-16 copy of the string.
|
||||
while (*s != '\0') {
|
||||
size_t idx = s - string_base;
|
||||
|
||||
WChar c = Utf8Consume(&s);
|
||||
if (c < 0x10000) {
|
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utf16_str.push_back((UniChar)c);
|
||||
} else {
|
||||
/* Make a surrogate pair. */
|
||||
utf16_str.push_back((UniChar)(0xD800 + ((c - 0x10000) >> 10)));
|
||||
utf16_str.push_back((UniChar)(0xDC00 + ((c - 0x10000) & 0x3FF)));
|
||||
this->utf16_to_utf8.push_back(idx);
|
||||
}
|
||||
this->utf16_to_utf8.push_back(idx);
|
||||
}
|
||||
this->utf16_to_utf8.push_back(s - string_base);
|
||||
|
||||
/* Query CoreText for word and cluster break information. */
|
||||
this->str_info.resize(utf16_to_utf8.size());
|
||||
|
||||
if (utf16_str.size() > 0) {
|
||||
CFStringRef str = CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, &utf16_str[0], utf16_str.size(), kCFAllocatorNull);
|
||||
|
||||
/* Get cluster breaks. */
|
||||
for (CFIndex i = 0; i < CFStringGetLength(str); ) {
|
||||
CFRange r = CFStringGetRangeOfComposedCharactersAtIndex(str, i);
|
||||
this->str_info[r.location].char_stop = true;
|
||||
|
||||
i += r.length;
|
||||
}
|
||||
|
||||
/* Get word breaks. */
|
||||
CFStringTokenizerRef tokenizer = CFStringTokenizerCreate(kCFAllocatorDefault, str, CFRangeMake(0, CFStringGetLength(str)), kCFStringTokenizerUnitWordBoundary, _osx_locale);
|
||||
|
||||
CFStringTokenizerTokenType tokenType = kCFStringTokenizerTokenNone;
|
||||
while ((tokenType = CFStringTokenizerAdvanceToNextToken(tokenizer)) != kCFStringTokenizerTokenNone) {
|
||||
/* Skip tokens that are white-space or punctuation tokens. */
|
||||
if ((tokenType & kCFStringTokenizerTokenHasNonLettersMask) != kCFStringTokenizerTokenHasNonLettersMask) {
|
||||
CFRange r = CFStringTokenizerGetCurrentTokenRange(tokenizer);
|
||||
this->str_info[r.location].word_stop = true;
|
||||
}
|
||||
}
|
||||
|
||||
CFRelease(tokenizer);
|
||||
CFRelease(str);
|
||||
}
|
||||
|
||||
/* End-of-string is always a valid stopping point. */
|
||||
this->str_info.back().char_stop = true;
|
||||
this->str_info.back().word_stop = true;
|
||||
}
|
||||
|
||||
/* virtual */ size_t OSXStringIterator::SetCurPosition(size_t pos)
|
||||
{
|
||||
/* Convert incoming position to an UTF-16 string index. */
|
||||
size_t utf16_pos = 0;
|
||||
for (size_t i = 0; i < this->utf16_to_utf8.size(); i++) {
|
||||
if (this->utf16_to_utf8[i] == pos) {
|
||||
utf16_pos = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Sanitize in case we get a position inside a grapheme cluster. */
|
||||
while (utf16_pos > 0 && !this->str_info[utf16_pos].char_stop) utf16_pos--;
|
||||
this->cur_pos = utf16_pos;
|
||||
|
||||
return this->utf16_to_utf8[this->cur_pos];
|
||||
}
|
||||
|
||||
/* virtual */ size_t OSXStringIterator::Next(IterType what)
|
||||
{
|
||||
assert(this->cur_pos <= this->utf16_to_utf8.size());
|
||||
assert(what == StringIterator::ITER_CHARACTER || what == StringIterator::ITER_WORD);
|
||||
|
||||
if (this->cur_pos == this->utf16_to_utf8.size()) return END;
|
||||
|
||||
do {
|
||||
this->cur_pos++;
|
||||
} while (this->cur_pos < this->utf16_to_utf8.size() && (what == ITER_WORD ? !this->str_info[this->cur_pos].word_stop : !this->str_info[this->cur_pos].char_stop));
|
||||
|
||||
return this->cur_pos == this->utf16_to_utf8.size() ? END : this->utf16_to_utf8[this->cur_pos];
|
||||
}
|
||||
|
||||
/* virtual */ size_t OSXStringIterator::Prev(IterType what)
|
||||
{
|
||||
assert(this->cur_pos <= this->utf16_to_utf8.size());
|
||||
assert(what == StringIterator::ITER_CHARACTER || what == StringIterator::ITER_WORD);
|
||||
|
||||
if (this->cur_pos == 0) return END;
|
||||
|
||||
do {
|
||||
this->cur_pos--;
|
||||
} while (this->cur_pos > 0 && (what == ITER_WORD ? !this->str_info[this->cur_pos].word_stop : !this->str_info[this->cur_pos].char_stop));
|
||||
|
||||
return this->utf16_to_utf8[this->cur_pos];
|
||||
}
|
||||
|
||||
/* static */ StringIterator *OSXStringIterator::Create()
|
||||
{
|
||||
if (!MacOSVersionIsAtLeast(10, 5, 0)) return NULL;
|
||||
|
||||
return new OSXStringIterator();
|
||||
}
|
||||
|
||||
#else
|
||||
void MacOSResetScriptCache(FontSize size) {}
|
||||
void MacOSSetCurrentLocaleName(const char *iso_code) {}
|
||||
|
||||
int MacOSStringCompare(const char *s1, const char *s2)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* static */ StringIterator *OSXStringIterator::Create()
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* static */ ParagraphLayouter *CoreTextParagraphLayoutFactory::GetParagraphLayout(CharType *buff, CharType *buff_end, FontMap &fontMapping)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
#endif /* (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) */
|
||||
@ -0,0 +1,90 @@
|
||||
/* $Id$ */
|
||||
|
||||
/*
|
||||
* 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"
|
||||
#include <vector>
|
||||
|
||||
/** 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:
|
||||
virtual void SetString(const char *s);
|
||||
virtual size_t SetCurPosition(size_t pos);
|
||||
virtual size_t Next(IterType what);
|
||||
virtual size_t Prev(IterType what);
|
||||
|
||||
static 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, WChar c)
|
||||
{
|
||||
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(const char *s1, const char *s2);
|
||||
|
||||
#endif /* STRING_OSX_H */
|
||||
Loading…
Reference in New Issue