2 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali/internal/text-abstraction/font-client-plugin-impl.h>
22 #include <dali/public-api/common/dali-vector.h>
23 #include <dali/public-api/common/vector-wrapper.h>
24 #include <dali/public-api/text-abstraction/glyph-info.h>
25 #include <dali/integration-api/debug.h>
28 #include <fontconfig/fontconfig.h>
31 * Conversion from Fractional26.6 to float
35 const float FROM_266 = 1.0f / 64.0f;
37 const std::string FONT_FORMAT( "TrueType" );
38 const std::string DEFAULT_FONT_FAMILY_NAME( "Tizen" );
39 const std::string DEFAULT_FONT_STYLE( "Regular" );
47 namespace TextAbstraction
53 const bool FONT_FIXED_SIZE_BITMAP( true );
55 FontClient::Plugin::FontDescriptionCacheItem::FontDescriptionCacheItem( const FontFamily& fontFamily,
56 const FontStyle& fontStyle,
57 FontDescriptionId index )
58 : fontFamily( fontFamily ),
59 fontStyle( fontStyle ),
64 FontClient::Plugin::FontIdCacheItem::FontIdCacheItem( FontDescriptionId validatedFontId,
65 PointSize26Dot6 pointSize,
67 : validatedFontId( validatedFontId ),
68 pointSize( pointSize ),
73 FontClient::Plugin::CacheItem::CacheItem( FT_Face ftFace,
75 PointSize26Dot6 pointSize,
77 const FontMetrics& metrics )
78 : mFreeTypeFace( ftFace ),
80 mPointSize( pointSize ),
83 mFixedWidthPixels( 0.0f ),
84 mFixedHeightPixels( 0.0f ),
85 mIsFixedSizeBitmap( false )
89 FontClient::Plugin::CacheItem::CacheItem( FT_Face ftFace,
91 PointSize26Dot6 pointSize,
93 const FontMetrics& metrics,
96 : mFreeTypeFace( ftFace ),
98 mPointSize( pointSize ),
101 mFixedWidthPixels( fixedWidth ),
102 mFixedHeightPixels( fixedHeight ),
103 mIsFixedSizeBitmap( true )
107 FontClient::Plugin::Plugin( unsigned int horizontalDpi,
108 unsigned int verticalDpi )
109 : mFreeTypeLibrary( NULL ),
110 mDpiHorizontal( horizontalDpi ),
111 mDpiVertical( verticalDpi ),
115 mValidatedFontCache(),
116 mFontDescriptionCache( 1u ),
119 int error = FT_Init_FreeType( &mFreeTypeLibrary );
120 if( FT_Err_Ok != error )
122 DALI_LOG_ERROR( "FreeType Init error: %d\n", error );
126 FontClient::Plugin::~Plugin()
128 FT_Done_FreeType( mFreeTypeLibrary );
131 void FontClient::Plugin::SetDpi( unsigned int horizontalDpi,
132 unsigned int verticalDpi )
134 mDpiHorizontal = horizontalDpi;
135 mDpiVertical = verticalDpi;
138 void FontClient::Plugin::SetDefaultFontFamily( const FontFamily& fontFamilyName,
139 const FontStyle& fontStyle )
141 mDefaultFonts.clear();
143 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamilyName,
146 FcResult result = FcResultMatch;
148 // Match the pattern.
149 FcFontSet* fontSet = FcFontSort( NULL /* use default configure */,
151 false /* don't trim */,
155 if( NULL != fontSet )
157 // Reserve some space to avoid reallocations.
158 mDefaultFonts.reserve( fontSet->nfont );
160 for( int i = 0u; i < fontSet->nfont; ++i )
162 FcPattern* fontPattern = fontSet->fonts[i];
166 // Skip fonts with no path
167 if( GetFcString( fontPattern, FC_FILE, path ) )
169 mDefaultFonts.push_back( FontDescription() );
170 FontDescription& fontDescription = mDefaultFonts.back();
172 fontDescription.path = path;
174 GetFcString( fontPattern, FC_FAMILY, fontDescription.family );
175 GetFcString( fontPattern, FC_STYLE, fontDescription.style );
179 FcFontSetDestroy( fontSet );
182 FcPatternDestroy( fontFamilyPattern );
185 void FontClient::Plugin::GetDefaultFonts( FontList& defaultFonts )
187 if( mDefaultFonts.empty() )
189 SetDefaultFontFamily( DEFAULT_FONT_FAMILY_NAME,
190 DEFAULT_FONT_STYLE );
193 defaultFonts = mDefaultFonts;
196 void FontClient::Plugin::GetSystemFonts( FontList& systemFonts )
198 if( mSystemFonts.empty() )
203 systemFonts = mSystemFonts;
206 void FontClient::Plugin::GetDescription( FontId id,
207 FontDescription& fontDescription ) const
209 for( std::vector<FontIdCacheItem>::const_iterator it = mFontIdCache.begin(),
210 endIt = mFontIdCache.end();
214 const FontIdCacheItem& item = *it;
216 if( item.fontId == id )
218 fontDescription = *( mFontDescriptionCache.begin() + item.validatedFontId );
223 DALI_LOG_ERROR( "FontClient::Plugin::GetDescription. No description found for the font ID %d\n", id );
226 PointSize26Dot6 FontClient::Plugin::GetPointSize( FontId id )
228 const FontId index = id - 1u;
231 index < mFontCache.size() )
233 return ( *( mFontCache.begin() + index ) ).mPointSize;
237 DALI_LOG_ERROR( "FontClient::Plugin::GetPointSize. Invalid font ID %d\n", id );
240 return TextAbstraction::FontClient::DEFAULT_POINT_SIZE;
243 FontId FontClient::Plugin::FindDefaultFont( Character charcode,
244 PointSize26Dot6 requestedSize )
246 // Create the list of default fonts if it has not been created.
247 if( mDefaultFonts.empty() )
249 SetDefaultFontFamily( DEFAULT_FONT_FAMILY_NAME,
250 DEFAULT_FONT_STYLE );
253 // Traverse the list of default fonts.
254 // Check for each default font if supports the character.
256 for( FontList::const_iterator it = mDefaultFonts.begin(),
257 endIt = mDefaultFonts.end();
261 const FontDescription& description = *it;
263 FcPattern* pattern = CreateFontFamilyPattern( description.family,
266 FcResult result = FcResultMatch;
267 FcPattern* match = FcFontMatch( NULL /* use default configure */, pattern, &result );
269 FcCharSet* charSet = NULL;
270 FcPatternGetCharSet( match, FC_CHARSET, 0u, &charSet );
272 if( FcCharSetHasChar( charSet, charcode ) )
274 Vector< PointSize26Dot6 > fixedSizes;
275 GetFixedSizes( description.family,
279 const Vector< PointSize26Dot6 >::SizeType count = fixedSizes.Count();
282 // If the font is not scalable, pick the largest size <= requestedSize
283 PointSize26Dot6 size = fixedSizes[0];
284 for( unsigned int i=1; i<count; ++i )
286 if( fixedSizes[i] <= requestedSize &&
287 fixedSizes[i] > size )
289 size = fixedSizes[i];
292 requestedSize = size;
295 return GetFontId( description.family,
305 FontId FontClient::Plugin::GetFontId( const FontPath& path,
306 PointSize26Dot6 pointSize,
308 bool cacheDescription )
312 if( NULL != mFreeTypeLibrary )
315 if( FindFont( path, pointSize, faceIndex, foundId ) )
321 id = CreateFont( path, pointSize, faceIndex, cacheDescription );
328 FontId FontClient::Plugin::GetFontId( const FontFamily& fontFamily,
329 const FontStyle& fontStyle,
330 PointSize26Dot6 pointSize,
331 FaceIndex faceIndex )
333 // This method uses three vectors which caches:
334 // * Pairs of non validated 'fontFamily, fontStyle' and an index to a vector with paths to font file names.
335 // * The path to font file names.
336 // * The font ids of pairs 'font point size, index to the vector with paths to font file names'.
338 // 1) Checks in the cache if the pair 'fontFamily, fontStyle' has been validated before.
339 // If it was it gets an index to the vector with paths to font file names. Otherwise,
340 // retrieves using font config a path to a font file name which matches with the pair
341 // 'fontFamily, fontStyle'. The path is stored in the chache.
343 // 2) Checks in the cache if the pair 'font point size, index to the vector with paths to
344 // fon file names' exists. If exists, it gets the font id. If it doesn't it calls
345 // the GetFontId() method with the path to the font file name and the point size to
348 // The font id to be returned.
351 // Check first if the pair font family and style have been validated before.
352 FontDescriptionId validatedFontId = 0u;
354 if( !FindValidatedFont( fontFamily,
358 // Use font config to validate the font family name and font style.
359 ValidateFont( fontFamily, fontStyle, validatedFontId );
362 // Check if exists a pair 'validatedFontId, pointSize' in the cache.
363 if( !FindFont( validatedFontId, pointSize, fontId ) )
365 // Retrieve the font file name path.
366 const FontDescription& description = *( mFontDescriptionCache.begin() + validatedFontId );
368 // Retrieve the font id. Do not cache the description as it has been already cached.
369 fontId = GetFontId( description.path,
374 // Cache the pair 'validatedFontId, pointSize' to improve the following queries.
375 mFontIdCache.push_back( FontIdCacheItem( validatedFontId,
383 void FontClient::Plugin::ValidateFont( const FontFamily& fontFamily,
384 const FontStyle& fontStyle,
385 FontDescriptionId& validatedFontId )
387 // Create a font pattern.
388 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
391 FcResult result = FcResultMatch;
394 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
398 // Get the path to the font file name.
399 FontDescription description;
400 GetFcString( match, FC_FILE, description.path );
401 GetFcString( match, FC_FAMILY, description.family );
402 GetFcString( match, FC_STYLE, description.style );
404 // Set the index to the vector of paths to font file names.
405 validatedFontId = mFontDescriptionCache.size();
407 // Add the path to the cache.
408 mFontDescriptionCache.push_back( description );
410 // Cache the index and the pair font family name, font style.
411 FontDescriptionCacheItem item( fontFamily, fontStyle, validatedFontId );
412 mValidatedFontCache.push_back( item );
414 // destroyed the matched pattern
415 FcPatternDestroy( match );
419 DALI_LOG_ERROR( "FontClient::Plugin::ValidateFont failed for font %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
422 // destroy the pattern
423 FcPatternDestroy( fontFamilyPattern );
428 void FontClient::Plugin::GetFontMetrics( FontId fontId,
429 FontMetrics& metrics )
432 fontId-1 < mFontCache.size() )
434 metrics = mFontCache[fontId-1].mMetrics;
438 DALI_LOG_ERROR( "Invalid font ID %d\n", fontId );
442 GlyphIndex FontClient::Plugin::GetGlyphIndex( FontId fontId,
445 GlyphIndex index( 0 );
448 fontId-1 < mFontCache.size() )
450 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
452 index = FT_Get_Char_Index( ftFace, charcode );
458 bool FontClient::Plugin::GetGlyphMetrics( GlyphInfo* array,
462 bool success( true );
464 for( unsigned int i=0; i<size; ++i )
466 FontId fontId = array[i].fontId;
469 fontId-1 < mFontCache.size() )
471 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
473 // Check to see if we should be loading a Fixed Size bitmap?
474 if ( mFontCache[fontId-1].mIsFixedSizeBitmap )
476 int error = FT_Load_Glyph( ftFace, array[i].index, FT_LOAD_COLOR );
477 if ( FT_Err_Ok == error )
479 array[i].width = mFontCache[ fontId -1 ].mFixedWidthPixels;
480 array[i].height = mFontCache[ fontId -1 ].mFixedHeightPixels;
481 array[i].advance = mFontCache[ fontId -1 ].mFixedWidthPixels;
482 array[i].xBearing = 0.0f;
483 array[i].yBearing = mFontCache[ fontId -1 ].mFixedHeightPixels;
487 DALI_LOG_ERROR( "FreeType Bitmap Load_Glyph error %d\n", error );
492 int error = FT_Load_Glyph( ftFace, array[i].index, FT_LOAD_DEFAULT );
494 if( FT_Err_Ok == error )
496 array[i].width = static_cast< float >( ftFace->glyph->metrics.width ) * FROM_266;
497 array[i].height = static_cast< float >( ftFace->glyph->metrics.height ) * FROM_266 ;
500 array[i].xBearing = static_cast< float >( ftFace->glyph->metrics.horiBearingX ) * FROM_266;
501 array[i].yBearing = static_cast< float >( ftFace->glyph->metrics.horiBearingY ) * FROM_266;
502 array[i].advance = static_cast< float >( ftFace->glyph->metrics.horiAdvance ) * FROM_266;
506 array[i].xBearing = static_cast< float >( ftFace->glyph->metrics.vertBearingX ) * FROM_266;
507 array[i].yBearing = static_cast< float >( ftFace->glyph->metrics.vertBearingY ) * FROM_266;
508 array[i].advance = static_cast< float >( ftFace->glyph->metrics.vertAdvance ) * FROM_266;
525 BufferImage FontClient::Plugin::CreateBitmap( FontId fontId,
526 GlyphIndex glyphIndex )
531 fontId-1 < mFontCache.size() )
533 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
537 // Check to see if this is fixed size bitmap
538 if ( mFontCache[fontId-1].mIsFixedSizeBitmap )
540 error = FT_Load_Glyph( ftFace, glyphIndex, FT_LOAD_COLOR );
544 error = FT_Load_Glyph( ftFace, glyphIndex, FT_LOAD_DEFAULT );
546 if( FT_Err_Ok == error )
549 error = FT_Get_Glyph( ftFace->glyph, &glyph );
551 // Convert to bitmap if necessary
552 if ( FT_Err_Ok == error )
554 if( glyph->format != FT_GLYPH_FORMAT_BITMAP )
556 error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, 0, 1 );
557 if ( FT_Err_Ok == error )
559 FT_BitmapGlyph bitmapGlyph = (FT_BitmapGlyph)glyph;
560 ConvertBitmap( bitmap, bitmapGlyph->bitmap );
564 DALI_LOG_ERROR( "FT_Get_Glyph Failed with error: %d\n", error );
569 ConvertBitmap( bitmap, ftFace->glyph->bitmap );
572 // Created FT_Glyph object must be released with FT_Done_Glyph
573 FT_Done_Glyph( glyph );
578 DALI_LOG_ERROR( "FT_Load_Glyph Failed with error: %d\n", error );
585 void FontClient::Plugin::InitSystemFonts()
587 FcFontSet* fontSet = GetFcFontSet();
591 // Reserve some space to avoid reallocations.
592 mSystemFonts.reserve( fontSet->nfont );
594 for( int i = 0u; i < fontSet->nfont; ++i )
596 FcPattern* fontPattern = fontSet->fonts[i];
600 // Skip fonts with no path
601 if( GetFcString( fontPattern, FC_FILE, path ) )
603 mSystemFonts.push_back( FontDescription() );
604 FontDescription& fontDescription = mSystemFonts.back();
606 fontDescription.path = path;
608 GetFcString( fontPattern, FC_FAMILY, fontDescription.family );
609 GetFcString( fontPattern, FC_STYLE, fontDescription.style );
613 FcFontSetDestroy( fontSet );
617 FcPattern* FontClient::Plugin::CreateFontFamilyPattern( const FontFamily& fontFamily,
618 const FontStyle& fontStyle )
620 // create the cached font family lookup pattern
621 // a pattern holds a set of names, each name refers to a property of the font
622 FcPattern* fontFamilyPattern = FcPatternCreate();
624 // add a property to the pattern for the font family
625 FcPatternAddString( fontFamilyPattern, FC_FAMILY, reinterpret_cast<const FcChar8*>( fontFamily.c_str() ) );
627 // add a property to the pattern for the font family
628 FcPatternAddString( fontFamilyPattern, FC_STYLE, reinterpret_cast<const FcChar8*>( fontStyle.c_str() ) );
630 // Add a property of the pattern, to say we want to match TrueType fonts
631 FcPatternAddString( fontFamilyPattern , FC_FONTFORMAT, reinterpret_cast<const FcChar8*>( FONT_FORMAT.c_str() ) );
633 // modify the config, with the mFontFamilyPatterm
634 FcConfigSubstitute( NULL /* use default configure */, fontFamilyPattern, FcMatchPattern );
636 // provide default values for unspecified properties in the font pattern
637 // e.g. patterns without a specified style or weight are set to Medium
638 FcDefaultSubstitute( fontFamilyPattern );
640 return fontFamilyPattern;
643 _FcFontSet* FontClient::Plugin::GetFcFontSet() const
645 // create a new pattern.
646 // a pattern holds a set of names, each name refers to a property of the font
647 FcPattern* pattern = FcPatternCreate();
649 // create an object set used to define which properties are to be returned in the patterns from FcFontList.
650 FcObjectSet* objectSet = FcObjectSetCreate();
652 // build an object set from a list of property names
653 FcObjectSetAdd( objectSet, FC_FILE );
654 FcObjectSetAdd( objectSet, FC_FAMILY );
655 FcObjectSetAdd( objectSet, FC_STYLE );
657 // get a list of fonts
658 // creates patterns from those fonts containing only the objects in objectSet and returns the set of unique such patterns
659 FcFontSet* fontset = FcFontList( NULL /* the default configuration is checked to be up to date, and used */, pattern, objectSet );
661 // clear up the object set
664 FcObjectSetDestroy( objectSet );
666 // clear up the pattern
669 FcPatternDestroy( pattern );
675 bool FontClient::Plugin::GetFcString( const FcPattern* const pattern,
677 std::string& string )
679 FcChar8* file = NULL;
680 const FcResult retVal = FcPatternGetString( pattern, n, 0u, &file );
682 if( FcResultMatch == retVal )
684 // Have to use reinterpret_cast because FcChar8 is unsigned char*, not a const char*.
685 string.assign( reinterpret_cast<const char*>( file ) );
693 FontId FontClient::Plugin::CreateFont( const FontPath& path,
694 PointSize26Dot6 pointSize,
696 bool cacheDescription )
700 // Create & cache new font face
702 int error = FT_New_Face( mFreeTypeLibrary,
707 if( FT_Err_Ok == error )
709 // Check to see if the font contains fixed sizes?
710 if ( ftFace->num_fixed_sizes && ftFace->available_sizes )
712 // Ensure this size is available
713 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
715 if ( static_cast<FT_Pos>(pointSize) == ftFace->available_sizes[ i ].size )
717 // Tell Freetype to use this size
718 error = FT_Select_Size( ftFace, i );
719 if ( FT_Err_Ok != error )
721 DALI_LOG_ERROR( "FreeType Select_Size error: %d\n", error );
725 float fixedWidth = static_cast< float >( ftFace->available_sizes[ i ].width );
726 float fixedHeight = static_cast< float >( ftFace->available_sizes[ i ].height );
728 // Indicate that the font is a fixed sized bitmap
729 FontMetrics metrics( 0.0f,
733 mFontCache.push_back( CacheItem( ftFace, path, pointSize, faceIndex, metrics, fixedWidth, fixedHeight ) );
734 id = mFontCache.size();
736 if( cacheDescription )
738 FontDescription description;
739 description.path = path;
740 description.family = FontFamily( ftFace->family_name );
741 description.style = FontStyle( ftFace->style_name );
743 mFontDescriptionCache.push_back( description );
750 // Can't find this size
751 std::stringstream sizes;
752 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
758 sizes << ftFace->available_sizes[ i ].size;
760 DALI_LOG_ERROR( "FreeType Font: %s, does not contain Bitmaps of size: %d. Available sizes are: %s\n",
761 path.c_str(), pointSize, sizes.str().c_str() );
765 error = FT_Set_Char_Size( ftFace,
771 if( FT_Err_Ok == error )
774 FT_Size_Metrics& ftMetrics = ftFace->size->metrics;
776 FontMetrics metrics( static_cast< float >( ftMetrics.ascender ) * FROM_266,
777 static_cast< float >( ftMetrics.descender ) * FROM_266,
778 static_cast< float >( ftMetrics.height ) * FROM_266 );
780 mFontCache.push_back( CacheItem( ftFace, path, pointSize, faceIndex, metrics ) );
781 id = mFontCache.size();
783 if( cacheDescription )
785 FontDescription description;
786 description.path = path;
787 description.family = FontFamily( ftFace->family_name );
788 description.style = FontStyle( ftFace->style_name );
790 mFontDescriptionCache.push_back( description );
795 DALI_LOG_ERROR( "FreeType Set_Char_Size error: %d for pointSize %d\n", error, pointSize );
801 DALI_LOG_ERROR( "FreeType New_Face error: %d for %s\n", error, path.c_str() );
807 void FontClient::Plugin::ConvertBitmap( BufferImage& destBitmap,
808 FT_Bitmap srcBitmap )
810 if( srcBitmap.width*srcBitmap.rows > 0 )
812 switch( srcBitmap.pixel_mode )
814 case FT_PIXEL_MODE_GRAY:
816 if( srcBitmap.pitch == static_cast< int >( srcBitmap.width ) )
818 destBitmap = BufferImage::New( srcBitmap.width, srcBitmap.rows, Pixel::L8 );
820 PixelBuffer* destBuffer = destBitmap.GetBuffer();
821 memcpy( destBuffer, srcBitmap.buffer, srcBitmap.width*srcBitmap.rows );
826 case FT_PIXEL_MODE_BGRA:
828 if ( srcBitmap.pitch == static_cast< int >( srcBitmap.width << 2 ) )
830 destBitmap = BufferImage::New( srcBitmap.width, srcBitmap.rows, Pixel::BGRA8888 );
832 PixelBuffer* destBuffer = destBitmap.GetBuffer();
833 memcpy( destBuffer, srcBitmap.buffer, srcBitmap.width*srcBitmap.rows*4 );
839 DALI_LOG_ERROR( "FontClient Unable to create Bitmap of this PixelType\n" );
846 bool FontClient::Plugin::FindFont( const FontPath& path,
847 PointSize26Dot6 pointSize,
849 FontId& fontId ) const
852 for( std::vector<CacheItem>::const_iterator it = mFontCache.begin(),
853 endIt = mFontCache.end();
857 const CacheItem& cacheItem = *it;
859 if( cacheItem.mPointSize == pointSize &&
860 cacheItem.mFaceIndex == faceIndex &&
861 cacheItem.mPath == path )
871 bool FontClient::Plugin::FindValidatedFont( const FontFamily& fontFamily,
872 const FontStyle& fontStyle,
873 FontDescriptionId& validatedFontId )
875 validatedFontId = 0u;
877 for( std::vector<FontDescriptionCacheItem>::const_iterator it = mValidatedFontCache.begin(),
878 endIt = mValidatedFontCache.end();
882 const FontDescriptionCacheItem& item = *it;
884 if( ( fontFamily == item.fontFamily ) &&
885 ( fontStyle == item.fontStyle ) )
887 validatedFontId = item.index;
896 bool FontClient::Plugin::FindFont( FontDescriptionId validatedFontId,
897 PointSize26Dot6 pointSize,
902 for( std::vector<FontIdCacheItem>::const_iterator it = mFontIdCache.begin(),
903 endIt = mFontIdCache.end();
907 const FontIdCacheItem& item = *it;
909 if( ( validatedFontId == item.validatedFontId ) &&
910 ( pointSize == item.pointSize ) )
912 fontId = item.fontId;
920 bool FontClient::Plugin::IsScalable( const FontPath& path )
923 int error = FT_New_Face( mFreeTypeLibrary,
927 if( FT_Err_Ok != error )
929 DALI_LOG_ERROR( "FreeType Cannot check font: %s\n", path.c_str() );
931 return ( ftFace->num_fixed_sizes == 0 );
934 bool FontClient::Plugin::IsScalable( const FontFamily& fontFamily, const FontStyle& fontStyle )
936 // Create a font pattern.
937 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
940 FcResult result = FcResultMatch;
943 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
947 // Get the path to the font file name.
949 GetFcString( match, FC_FILE, path );
950 return IsScalable( path );
952 DALI_LOG_ERROR( "FreeType Cannot check font: %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
956 void FontClient::Plugin::GetFixedSizes( const FontPath& path, Vector< PointSize26Dot6 >& sizes )
958 // Empty the caller container
962 int error = FT_New_Face( mFreeTypeLibrary,
966 if( FT_Err_Ok != error )
968 DALI_LOG_ERROR( "FreeType Cannot check font: %s\n", path.c_str() );
971 // Fetch the number of fixed sizes available
972 if ( ftFace->num_fixed_sizes && ftFace->available_sizes )
974 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
976 sizes.PushBack( ftFace->available_sizes[ i ].size );
981 void FontClient::Plugin::GetFixedSizes( const FontFamily& fontFamily,
982 const FontStyle& fontStyle,
983 Vector< PointSize26Dot6 >& sizes )
985 // Create a font pattern.
986 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
989 FcResult result = FcResultMatch;
992 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
996 // Get the path to the font file name.
998 GetFcString( match, FC_FILE, path );
999 return GetFixedSizes( path, sizes );
1001 DALI_LOG_ERROR( "FreeType Cannot check font: %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
1004 } // namespace Internal
1006 } // namespace TextAbstraction