diff options
Diffstat (limited to 'skia/ext/SkFontHost_fontconfig_direct.cpp')
| -rw-r--r-- | skia/ext/SkFontHost_fontconfig_direct.cpp | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/skia/ext/SkFontHost_fontconfig_direct.cpp b/skia/ext/SkFontHost_fontconfig_direct.cpp deleted file mode 100644 index 001fccd..0000000 --- a/skia/ext/SkFontHost_fontconfig_direct.cpp +++ /dev/null @@ -1,180 +0,0 @@ -/* libs/graphics/ports/SkFontHost_fontconfig_direct.cpp -** -** Copyright 2009, Google Inc. -** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at -** -** http://www.apache.org/licenses/LICENSE-2.0 -** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and -** limitations under the License. -*/ - -#include "SkFontHost_fontconfig_direct.h" - -#include <unistd.h> -#include <fcntl.h> - -#include <fontconfig/fontconfig.h> - -FontConfigDirect::FontConfigDirect() - : next_file_id_(0) { - FcInit(); -} - -// ----------------------------------------------------------------------------- -// Normally we only return exactly the font asked for. In last-resort cases, -// the request is for one of the basic font names "Sans", "Serif" or -// "Monospace". This function tells you whether a given request is for such a -// fallback. -// ----------------------------------------------------------------------------- -static bool IsFallbackFontAllowed(const std::string& family) -{ - return family == "Sans" || - family == "Serif" || - family == "Monospace"; -} - -bool FontConfigDirect::Match(std::string* result_family, - unsigned* result_fileid, - bool fileid_valid, unsigned fileid, - const std::string& family, int is_bold, - int is_italic) { - SkAutoMutexAcquire ac(mutex_); - FcPattern* pattern = FcPatternCreate(); - - FcValue fcvalue; - if (fileid_valid) { - const std::map<unsigned, std::string>::const_iterator - i = fileid_to_filename_.find(fileid); - if (i == fileid_to_filename_.end()) { - FcPatternDestroy(pattern); - return false; - } - - fcvalue.type = FcTypeString; - fcvalue.u.s = (FcChar8*) i->second.c_str(); - FcPatternAdd(pattern, FC_FILE, fcvalue, 0); - } - if (!family.empty()) { - fcvalue.type = FcTypeString; - fcvalue.u.s = (FcChar8*) family.c_str(); - FcPatternAdd(pattern, FC_FAMILY, fcvalue, 0); - } - if (is_bold > 0) { - fcvalue.type = FcTypeInteger; - fcvalue.u.i = is_bold ? FC_WEIGHT_BOLD : FC_WEIGHT_NORMAL; - FcPatternAdd(pattern, FC_WEIGHT, fcvalue, 0); - } - if (is_italic > 0) { - fcvalue.type = FcTypeInteger; - fcvalue.u.i = is_bold ? FC_SLANT_ITALIC : FC_SLANT_ROMAN; - FcPatternAdd(pattern, FC_SLANT, fcvalue, 0); - } - - FcConfigSubstitute(0, pattern, FcMatchPattern); - FcDefaultSubstitute(pattern); - - // Font matching: - // CSS often specifies a fallback list of families: - // font-family: a, b, c, serif; - // However, fontconfig will always do its best to find *a* font when asked - // for something so we need a way to tell if the match which it has found is - // "good enough" for us. Otherwise, we can return NULL which gets piped up - // and lets WebKit know to try the next CSS family name. However, fontconfig - // configs allow substitutions (mapping "Arial -> Helvetica" etc) and we - // wish to support that. - // - // Thus, if a specific family is requested we set @family_requested. Then we - // record two strings: the family name after config processing and the - // family name after resolving. If the two are equal, it's a good match. - // - // So consider the case where a user has mapped Arial to Helvetica in their - // config. - // requested family: "Arial" - // post_config_family: "Helvetica" - // post_match_family: "Helvetica" - // -> good match - // - // and for a missing font: - // requested family: "Monaco" - // post_config_family: "Monaco" - // post_match_family: "Times New Roman" - // -> BAD match - // - // However, we special-case fallback fonts; see IsFallbackFontAllowed(). - FcChar8* post_config_family; - FcPatternGetString(pattern, FC_FAMILY, 0, &post_config_family); - - FcResult result; - FcPattern* match = FcFontMatch(0, pattern, &result); - if (!match) { - FcPatternDestroy(pattern); - return false; - } - - FcChar8* post_match_family; - FcPatternGetString(match, FC_FAMILY, 0, &post_match_family); - const bool family_names_match = - family.empty() ? - true : - strcasecmp((char *)post_config_family, (char *)post_match_family) == 0; - - FcPatternDestroy(pattern); - - if (!family_names_match && !IsFallbackFontAllowed(family)) { - FcPatternDestroy(match); - return false; - } - - FcChar8* c_filename; - if (FcPatternGetString(match, FC_FILE, 0, &c_filename) != FcResultMatch) { - FcPatternDestroy(match); - return NULL; - } - const std::string filename((char *) c_filename); - - unsigned out_fileid; - if (fileid_valid) { - out_fileid = fileid; - } else { - const std::map<std::string, unsigned>::const_iterator - i = filename_to_fileid_.find(filename); - if (i == filename_to_fileid_.end()) { - out_fileid = next_file_id_++; - filename_to_fileid_[filename] = out_fileid; - fileid_to_filename_[out_fileid] = filename; - } else { - out_fileid = i->second; - } - } - - if (*result_fileid) - *result_fileid = out_fileid; - - FcChar8* c_family; - if (FcPatternGetString(match, FC_FAMILY, 0, &c_family)) { - FcPatternDestroy(match); - return NULL; - } - - if (result_family) - *result_family = (char *) c_family; - - return true; -} - -int FontConfigDirect::Open(unsigned fileid) { - SkAutoMutexAcquire ac(mutex_); - const std::map<unsigned, std::string>::const_iterator - i = fileid_to_filename_.find(fileid); - if (i == fileid_to_filename_.end()) - return -1; - - return open(i->second.c_str(), O_RDONLY); -} |