diff options
| author | Khaled Hosny <khaledhosny@eglug.org> | 2019-09-03 14:40:42 +0200 |
|---|---|---|
| committer | Khaled Hosny <khaledhosny@eglug.org> | 2019-09-11 12:40:33 +0200 |
| commit | ac9d7d4157813fcf43dd41043981c4bb27d2cc33 (patch) | |
| tree | 597ec10353b7f08a6aa26c6e71d713fcf05d98b3 /vcl/source/font/PhysicalFontFace.cxx | |
| parent | befc8853fac9fd1265ebd4898bf63b26e62ac9e7 (diff) | |
Consolidate GetFontCapabilities()private/khaledhosny/vcl-cleanup-font
All implementations were basically doing the same thing. Move to
PhysicalFontFace and use HarfBuzz API to get the raw OpeenType table
data.
Change-Id: Ia5ac0d1ba6299f86e90e1b0dac34ba7672855ec0
Diffstat (limited to 'vcl/source/font/PhysicalFontFace.cxx')
| -rw-r--r-- | vcl/source/font/PhysicalFontFace.cxx | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/vcl/source/font/PhysicalFontFace.cxx b/vcl/source/font/PhysicalFontFace.cxx index 997b1c155160..305a06a4edcf 100644 --- a/vcl/source/font/PhysicalFontFace.cxx +++ b/vcl/source/font/PhysicalFontFace.cxx @@ -27,6 +27,7 @@ #include <fontselect.hxx> #include <impfontcharmap.hxx> +#include <sft.hxx> #include <PhysicalFontFace.hxx> PhysicalFontFace::PhysicalFontFace( const FontAttributes& rDFA ) @@ -34,6 +35,7 @@ PhysicalFontFace::PhysicalFontFace( const FontAttributes& rDFA ) , mnWidth(0) , mnHeight(0) , mpHbFace(nullptr) + , mbCapabilitiesRead(false) { // StarSymbol is a unicode font, but it still deserves the symbol flag if( !IsSymbolFont() ) @@ -248,4 +250,30 @@ const FontCharMapRef& PhysicalFontFace::GetCharMap() const return mxCharMap; } +bool PhysicalFontFace::GetCapabilities(vcl::FontCapabilities &rCapabilities) const +{ + // Read this only once. + if (mbCapabilitiesRead) + { + rCapabilities = maCapabilities; + return rCapabilities.oUnicodeRange || rCapabilities.oCodePageRange; + } + + mbCapabilitiesRead = true; + + hb_blob_t* pBlob = hb_face_reference_table(mpHbFace, HB_TAG('O', 'S', '/', '2')); + const unsigned char* pData = reinterpret_cast<const unsigned char*>(hb_blob_get_data(pBlob, nullptr)); + size_t nSize = hb_blob_get_length(pBlob); + if (nSize > 0) + { + vcl::getTTCoverage(maCapabilities.oUnicodeRange, + maCapabilities.oCodePageRange, + pData, nSize); + } + hb_blob_destroy(pBlob); + + rCapabilities = maCapabilities; + return rCapabilities.oUnicodeRange || rCapabilities.oCodePageRange; +} + /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |