SkStream* SkFontHost::OpenStream(uint32_t fontID) {
FamilyTypeface* tf = (FamilyTypeface*)find_from_uniqueID(fontID);
SkStream* stream = tf ? tf->openStream() : NULL;
if (stream && stream->getLength() == 0) {
stream->unref();
stream = NULL;
}
return stream;
}
SkStream* SkFontHost::OpenStream(uint32_t fontID) {
SkAutoMutexAcquire ac(gFamilyHeadAndNameListMutex);
FamilyTypeface* tf = (FamilyTypeface*)find_from_uniqueID(fontID);
SkStream* stream = tf ? tf->openStream() : NULL;
if (stream && stream->getLength() == 0) {
stream->unref();
stream = NULL;
}
return stream;
}
static void load_directory_fonts(const SkString& directory, unsigned int* count) {
SkOSFile::Iter iter(directory.c_str(), ".ttf");
SkString name;
while (iter.next(&name, false)) {
SkString filename(directory);
filename.append(name);
bool isFixedWidth;
SkString realname;
SkTypeface::Style style = SkTypeface::kNormal; // avoid uninitialized warning
if (!get_name_and_style(filename.c_str(), &realname, &style, &isFixedWidth)) {
SkDebugf("------ can't load <%s> as a font\n", filename.c_str());
continue;
}
FamilyRec* family = find_familyrec(realname.c_str());
if (family && family->fFaces[style]) {
continue;
}
// this constructor puts us into the global gFamilyHead llist
FamilyTypeface* tf = SkNEW_ARGS(FileTypeface,
(style,
true, // system-font (cannot delete)
family, // what family to join
filename.c_str(),
isFixedWidth) // filename
);
if (NULL == family) {
add_name(realname.c_str(), tf->getFamily());
}
*count += 1;
}
SkOSFile::Iter dirIter(directory.c_str());
while (dirIter.next(&name, true)) {
if (name.startsWith(".")) {
continue;
}
SkString dirname(directory);
dirname.append(name);
dirname.append(SK_FONT_FILE_DIR_SEPERATOR);
load_directory_fonts(dirname, count);
}
}
size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
int32_t* index) {
SkAutoMutexAcquire ac(gFamilyMutex);
FamilyTypeface* tf = (FamilyTypeface*)find_from_uniqueID(fontID);
const char* src = tf ? tf->getFilePath() : NULL;
if (src) {
size_t size = strlen(src);
if (path) {
memcpy(path, src, SkMin32(size, length));
}
if (index) {
*index = 0; // we don't have collections (yet)
}
return size;
} else {
return 0;
}
}
static void load_system_fonts() {
// check if we've already be called
if (NULL != gDefaultNormal) {
// printf("---- default font %p\n", gDefaultNormal);
return;
}
SkOSFile::Iter iter(SK_FONT_FILE_PREFIX, ".ttf");
SkString name;
int count = 0;
while (iter.next(&name, false)) {
SkString filename;
GetFullPathForSysFonts(&filename, name.c_str());
bool isFixedWidth;
SkString realname;
SkTypeface::Style style = SkTypeface::kNormal; // avoid uninitialized warning
if (!get_name_and_style(filename.c_str(), &realname, &style, &isFixedWidth)) {
SkDebugf("------ can't load <%s> as a font\n", filename.c_str());
continue;
}
// SkDebugf("font: <%s> %d <%s>\n", realname.c_str(), style, filename.c_str());
FamilyRec* family = find_familyrec(realname.c_str());
if (family && family->fFaces[style]) {
// SkDebugf("---- skipping duplicate typeface %s style %d\n",
// realname.c_str(), style);
continue;
}
// this constructor puts us into the global gFamilyHead llist
FamilyTypeface* tf = SkNEW_ARGS(FileTypeface,
(style,
true, // system-font (cannot delete)
family, // what family to join
filename.c_str(),
isFixedWidth) // filename
);
if (NULL == family) {
add_name(realname.c_str(), tf->getFamily());
}
count += 1;
}
if (0 == count) {
SkNEW(EmptyTypeface);
}
// do this after all fonts are loaded. This is our default font, and it
// acts as a sentinel so we only execute load_system_fonts() once
static const char* gDefaultNames[] = {
"Arial", "Verdana", "Times New Roman", NULL
};
const char** names = gDefaultNames;
while (*names) {
SkTypeface* tf = find_typeface(*names++, SkTypeface::kNormal);
if (tf) {
gDefaultNormal = tf;
break;
}
}
// check if we found *something*
if (NULL == gDefaultNormal) {
if (NULL == gFamilyHead) {
sk_throw();
}
for (int i = 0; i < 4; i++) {
if ((gDefaultNormal = gFamilyHead->fFaces[i]) != NULL) {
break;
}
}
}
if (NULL == gDefaultNormal) {
sk_throw();
}
gFallBackTypeface = gDefaultNormal;
gDefaultFamily = find_family(gDefaultNormal);
// SkDebugf("---- default %p head %p family %p\n", gDefaultNormal, gFamilyHead, gDefaultFamily);
}
