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,
248 bool foundColor(false);
250 // Create the list of default fonts if it has not been created.
251 if( mDefaultFonts.empty() )
253 SetDefaultFontFamily( DEFAULT_FONT_FAMILY_NAME,
254 DEFAULT_FONT_STYLE );
257 // Traverse the list of default fonts.
258 // Check for each default font if supports the character.
260 for( FontList::const_iterator it = mDefaultFonts.begin(), endIt = mDefaultFonts.end();
264 const FontDescription& description = *it;
266 FcPattern* pattern = CreateFontFamilyPattern( description.family,
269 FcResult result = FcResultMatch;
270 FcPattern* match = FcFontMatch( NULL /* use default configure */, pattern, &result );
272 FcCharSet* charSet = NULL;
273 FcPatternGetCharSet( match, FC_CHARSET, 0u, &charSet );
275 if( FcCharSetHasChar( charSet, charcode ) )
277 Vector< PointSize26Dot6 > fixedSizes;
278 GetFixedSizes( description.family,
282 const Vector< PointSize26Dot6 >::SizeType count = fixedSizes.Count();
285 // If the font is not scalable, pick the largest size <= requestedSize
286 PointSize26Dot6 size = fixedSizes[0];
287 for( unsigned int i=1; i<count; ++i )
289 if( fixedSizes[i] <= requestedSize &&
290 fixedSizes[i] > size )
292 size = fixedSizes[i];
295 requestedSize = size;
298 fontId = GetFontId( description.family,
305 BufferImage bitmap = CreateBitmap( fontId, GetGlyphIndex(fontId,charcode) );
307 Pixel::BGRA8888 == bitmap.GetPixelFormat() )
313 // Keep going unless we prefer a different (color) font
314 if( !preferColor || foundColor )
324 FontId FontClient::Plugin::GetFontId( const FontPath& path,
325 PointSize26Dot6 pointSize,
327 bool cacheDescription )
331 if( NULL != mFreeTypeLibrary )
334 if( FindFont( path, pointSize, faceIndex, foundId ) )
340 id = CreateFont( path, pointSize, faceIndex, cacheDescription );
347 FontId FontClient::Plugin::GetFontId( const FontFamily& fontFamily,
348 const FontStyle& fontStyle,
349 PointSize26Dot6 pointSize,
350 FaceIndex faceIndex )
352 // This method uses three vectors which caches:
353 // * Pairs of non validated 'fontFamily, fontStyle' and an index to a vector with paths to font file names.
354 // * The path to font file names.
355 // * The font ids of pairs 'font point size, index to the vector with paths to font file names'.
357 // 1) Checks in the cache if the pair 'fontFamily, fontStyle' has been validated before.
358 // If it was it gets an index to the vector with paths to font file names. Otherwise,
359 // retrieves using font config a path to a font file name which matches with the pair
360 // 'fontFamily, fontStyle'. The path is stored in the chache.
362 // 2) Checks in the cache if the pair 'font point size, index to the vector with paths to
363 // fon file names' exists. If exists, it gets the font id. If it doesn't it calls
364 // the GetFontId() method with the path to the font file name and the point size to
367 // The font id to be returned.
370 // Check first if the pair font family and style have been validated before.
371 FontDescriptionId validatedFontId = 0u;
373 if( !FindValidatedFont( fontFamily,
377 // Use font config to validate the font family name and font style.
378 ValidateFont( fontFamily, fontStyle, validatedFontId );
381 // Check if exists a pair 'validatedFontId, pointSize' in the cache.
382 if( !FindFont( validatedFontId, pointSize, fontId ) )
384 // Retrieve the font file name path.
385 const FontDescription& description = *( mFontDescriptionCache.begin() + validatedFontId );
387 // Retrieve the font id. Do not cache the description as it has been already cached.
388 fontId = GetFontId( description.path,
393 // Cache the pair 'validatedFontId, pointSize' to improve the following queries.
394 mFontIdCache.push_back( FontIdCacheItem( validatedFontId,
402 void FontClient::Plugin::ValidateFont( const FontFamily& fontFamily,
403 const FontStyle& fontStyle,
404 FontDescriptionId& validatedFontId )
406 // Create a font pattern.
407 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
410 FcResult result = FcResultMatch;
413 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
417 // Get the path to the font file name.
418 FontDescription description;
419 GetFcString( match, FC_FILE, description.path );
420 GetFcString( match, FC_FAMILY, description.family );
421 GetFcString( match, FC_STYLE, description.style );
423 // Set the index to the vector of paths to font file names.
424 validatedFontId = mFontDescriptionCache.size();
426 // Add the path to the cache.
427 mFontDescriptionCache.push_back( description );
429 // Cache the index and the pair font family name, font style.
430 FontDescriptionCacheItem item( fontFamily, fontStyle, validatedFontId );
431 mValidatedFontCache.push_back( item );
433 // destroyed the matched pattern
434 FcPatternDestroy( match );
438 DALI_LOG_ERROR( "FontClient::Plugin::ValidateFont failed for font %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
441 // destroy the pattern
442 FcPatternDestroy( fontFamilyPattern );
447 void FontClient::Plugin::GetFontMetrics( FontId fontId,
448 FontMetrics& metrics )
451 fontId-1 < mFontCache.size() )
453 metrics = mFontCache[fontId-1].mMetrics;
457 DALI_LOG_ERROR( "Invalid font ID %d\n", fontId );
461 GlyphIndex FontClient::Plugin::GetGlyphIndex( FontId fontId,
464 GlyphIndex index( 0 );
467 fontId-1 < mFontCache.size() )
469 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
471 index = FT_Get_Char_Index( ftFace, charcode );
477 bool FontClient::Plugin::GetGlyphMetrics( GlyphInfo* array,
481 bool success( true );
483 for( unsigned int i=0; i<size; ++i )
485 FontId fontId = array[i].fontId;
488 fontId-1 < mFontCache.size() )
490 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
492 #ifdef FREETYPE_BITMAP_SUPPORT
493 // Check to see if we should be loading a Fixed Size bitmap?
494 if ( mFontCache[fontId-1].mIsFixedSizeBitmap )
496 int error = FT_Load_Glyph( ftFace, array[i].index, FT_LOAD_COLOR );
497 if ( FT_Err_Ok == error )
499 array[i].width = mFontCache[ fontId -1 ].mFixedWidthPixels;
500 array[i].height = mFontCache[ fontId -1 ].mFixedHeightPixels;
501 array[i].advance = mFontCache[ fontId -1 ].mFixedWidthPixels;
502 array[i].xBearing = 0.0f;
503 array[i].yBearing = mFontCache[ fontId -1 ].mFixedHeightPixels;
507 DALI_LOG_ERROR( "FreeType Bitmap Load_Glyph error %d\n", error );
514 int error = FT_Load_Glyph( ftFace, array[i].index, FT_LOAD_DEFAULT );
516 if( FT_Err_Ok == error )
518 array[i].width = static_cast< float >( ftFace->glyph->metrics.width ) * FROM_266;
519 array[i].height = static_cast< float >( ftFace->glyph->metrics.height ) * FROM_266 ;
522 array[i].xBearing += static_cast< float >( ftFace->glyph->metrics.horiBearingX ) * FROM_266;
523 array[i].yBearing += static_cast< float >( ftFace->glyph->metrics.horiBearingY ) * FROM_266;
527 array[i].xBearing += static_cast< float >( ftFace->glyph->metrics.vertBearingX ) * FROM_266;
528 array[i].yBearing += static_cast< float >( ftFace->glyph->metrics.vertBearingY ) * FROM_266;
546 BufferImage FontClient::Plugin::CreateBitmap( FontId fontId,
547 GlyphIndex glyphIndex )
552 fontId-1 < mFontCache.size() )
554 FT_Face ftFace = mFontCache[fontId-1].mFreeTypeFace;
558 #ifdef FREETYPE_BITMAP_SUPPORT
559 // Check to see if this is fixed size bitmap
560 if ( mFontCache[fontId-1].mIsFixedSizeBitmap )
562 error = FT_Load_Glyph( ftFace, glyphIndex, FT_LOAD_COLOR );
567 error = FT_Load_Glyph( ftFace, glyphIndex, FT_LOAD_DEFAULT );
569 if( FT_Err_Ok == error )
572 error = FT_Get_Glyph( ftFace->glyph, &glyph );
574 // Convert to bitmap if necessary
575 if ( FT_Err_Ok == error )
577 if( glyph->format != FT_GLYPH_FORMAT_BITMAP )
579 error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, 0, 1 );
580 if ( FT_Err_Ok == error )
582 FT_BitmapGlyph bitmapGlyph = (FT_BitmapGlyph)glyph;
583 ConvertBitmap( bitmap, bitmapGlyph->bitmap );
587 DALI_LOG_ERROR( "FT_Get_Glyph Failed with error: %d\n", error );
592 ConvertBitmap( bitmap, ftFace->glyph->bitmap );
595 // Created FT_Glyph object must be released with FT_Done_Glyph
596 FT_Done_Glyph( glyph );
601 DALI_LOG_ERROR( "FT_Load_Glyph Failed with error: %d\n", error );
608 void FontClient::Plugin::InitSystemFonts()
610 FcFontSet* fontSet = GetFcFontSet();
614 // Reserve some space to avoid reallocations.
615 mSystemFonts.reserve( fontSet->nfont );
617 for( int i = 0u; i < fontSet->nfont; ++i )
619 FcPattern* fontPattern = fontSet->fonts[i];
623 // Skip fonts with no path
624 if( GetFcString( fontPattern, FC_FILE, path ) )
626 mSystemFonts.push_back( FontDescription() );
627 FontDescription& fontDescription = mSystemFonts.back();
629 fontDescription.path = path;
631 GetFcString( fontPattern, FC_FAMILY, fontDescription.family );
632 GetFcString( fontPattern, FC_STYLE, fontDescription.style );
636 FcFontSetDestroy( fontSet );
640 FcPattern* FontClient::Plugin::CreateFontFamilyPattern( const FontFamily& fontFamily,
641 const FontStyle& fontStyle )
643 // create the cached font family lookup pattern
644 // a pattern holds a set of names, each name refers to a property of the font
645 FcPattern* fontFamilyPattern = FcPatternCreate();
647 // add a property to the pattern for the font family
648 FcPatternAddString( fontFamilyPattern, FC_FAMILY, reinterpret_cast<const FcChar8*>( fontFamily.c_str() ) );
650 // add a property to the pattern for the font family
651 FcPatternAddString( fontFamilyPattern, FC_STYLE, reinterpret_cast<const FcChar8*>( fontStyle.c_str() ) );
653 // Add a property of the pattern, to say we want to match TrueType fonts
654 FcPatternAddString( fontFamilyPattern , FC_FONTFORMAT, reinterpret_cast<const FcChar8*>( FONT_FORMAT.c_str() ) );
656 // modify the config, with the mFontFamilyPatterm
657 FcConfigSubstitute( NULL /* use default configure */, fontFamilyPattern, FcMatchPattern );
659 // provide default values for unspecified properties in the font pattern
660 // e.g. patterns without a specified style or weight are set to Medium
661 FcDefaultSubstitute( fontFamilyPattern );
663 return fontFamilyPattern;
666 _FcFontSet* FontClient::Plugin::GetFcFontSet() const
668 // create a new pattern.
669 // a pattern holds a set of names, each name refers to a property of the font
670 FcPattern* pattern = FcPatternCreate();
672 // create an object set used to define which properties are to be returned in the patterns from FcFontList.
673 FcObjectSet* objectSet = FcObjectSetCreate();
675 // build an object set from a list of property names
676 FcObjectSetAdd( objectSet, FC_FILE );
677 FcObjectSetAdd( objectSet, FC_FAMILY );
678 FcObjectSetAdd( objectSet, FC_STYLE );
680 // get a list of fonts
681 // creates patterns from those fonts containing only the objects in objectSet and returns the set of unique such patterns
682 FcFontSet* fontset = FcFontList( NULL /* the default configuration is checked to be up to date, and used */, pattern, objectSet );
684 // clear up the object set
687 FcObjectSetDestroy( objectSet );
689 // clear up the pattern
692 FcPatternDestroy( pattern );
698 bool FontClient::Plugin::GetFcString( const FcPattern* const pattern,
700 std::string& string )
702 FcChar8* file = NULL;
703 const FcResult retVal = FcPatternGetString( pattern, n, 0u, &file );
705 if( FcResultMatch == retVal )
707 // Have to use reinterpret_cast because FcChar8 is unsigned char*, not a const char*.
708 string.assign( reinterpret_cast<const char*>( file ) );
716 FontId FontClient::Plugin::CreateFont( const FontPath& path,
717 PointSize26Dot6 pointSize,
719 bool cacheDescription )
723 // Create & cache new font face
725 int error = FT_New_Face( mFreeTypeLibrary,
730 if( FT_Err_Ok == error )
732 // Check to see if the font contains fixed sizes?
733 if ( ftFace->num_fixed_sizes && ftFace->available_sizes )
735 // Ensure this size is available
736 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
738 if ( static_cast<FT_Pos>(pointSize) == ftFace->available_sizes[ i ].size )
740 // Tell Freetype to use this size
741 error = FT_Select_Size( ftFace, i );
742 if ( FT_Err_Ok != error )
744 DALI_LOG_ERROR( "FreeType Select_Size error: %d\n", error );
748 float fixedWidth = static_cast< float >( ftFace->available_sizes[ i ].width );
749 float fixedHeight = static_cast< float >( ftFace->available_sizes[ i ].height );
751 // Indicate that the font is a fixed sized bitmap
752 FontMetrics metrics( fixedHeight,
758 mFontCache.push_back( CacheItem( ftFace, path, pointSize, faceIndex, metrics, fixedWidth, fixedHeight ) );
759 id = mFontCache.size();
761 if( cacheDescription )
763 FontDescription description;
764 description.path = path;
765 description.family = FontFamily( ftFace->family_name );
766 description.style = FontStyle( ftFace->style_name );
768 mFontDescriptionCache.push_back( description );
775 // Can't find this size
776 std::stringstream sizes;
777 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
783 sizes << ftFace->available_sizes[ i ].size;
785 DALI_LOG_ERROR( "FreeType Font: %s, does not contain Bitmaps of size: %d. Available sizes are: %s\n",
786 path.c_str(), pointSize, sizes.str().c_str() );
790 error = FT_Set_Char_Size( ftFace,
796 if( FT_Err_Ok == error )
799 FT_Size_Metrics& ftMetrics = ftFace->size->metrics;
801 FontMetrics metrics( static_cast< float >( ftMetrics.ascender ) * FROM_266,
802 static_cast< float >( ftMetrics.descender ) * FROM_266,
803 static_cast< float >( ftMetrics.height ) * FROM_266,
804 static_cast< float >( ftFace->underline_position ) * FROM_266,
805 static_cast< float >( ftFace->underline_thickness ) * FROM_266 );
807 mFontCache.push_back( CacheItem( ftFace, path, pointSize, faceIndex, metrics ) );
808 id = mFontCache.size();
810 if( cacheDescription )
812 FontDescription description;
813 description.path = path;
814 description.family = FontFamily( ftFace->family_name );
815 description.style = FontStyle( ftFace->style_name );
817 mFontDescriptionCache.push_back( description );
822 DALI_LOG_ERROR( "FreeType Set_Char_Size error: %d for pointSize %d\n", error, pointSize );
828 DALI_LOG_ERROR( "FreeType New_Face error: %d for %s\n", error, path.c_str() );
834 void FontClient::Plugin::ConvertBitmap( BufferImage& destBitmap,
835 FT_Bitmap srcBitmap )
837 if( srcBitmap.width*srcBitmap.rows > 0 )
839 switch( srcBitmap.pixel_mode )
841 case FT_PIXEL_MODE_GRAY:
843 if( srcBitmap.pitch == static_cast< int >( srcBitmap.width ) )
845 destBitmap = BufferImage::New( srcBitmap.width, srcBitmap.rows, Pixel::L8 );
847 PixelBuffer* destBuffer = destBitmap.GetBuffer();
848 memcpy( destBuffer, srcBitmap.buffer, srcBitmap.width*srcBitmap.rows );
853 #ifdef FREETYPE_BITMAP_SUPPORT
854 case FT_PIXEL_MODE_BGRA:
856 if ( srcBitmap.pitch == static_cast< int >( srcBitmap.width << 2 ) )
858 destBitmap = BufferImage::New( srcBitmap.width, srcBitmap.rows, Pixel::BGRA8888 );
860 PixelBuffer* destBuffer = destBitmap.GetBuffer();
861 memcpy( destBuffer, srcBitmap.buffer, srcBitmap.width*srcBitmap.rows*4 );
868 DALI_LOG_ERROR( "FontClient Unable to create Bitmap of this PixelType\n" );
875 bool FontClient::Plugin::FindFont( const FontPath& path,
876 PointSize26Dot6 pointSize,
878 FontId& fontId ) const
881 for( std::vector<CacheItem>::const_iterator it = mFontCache.begin(),
882 endIt = mFontCache.end();
886 const CacheItem& cacheItem = *it;
888 if( cacheItem.mPointSize == pointSize &&
889 cacheItem.mFaceIndex == faceIndex &&
890 cacheItem.mPath == path )
900 bool FontClient::Plugin::FindValidatedFont( const FontFamily& fontFamily,
901 const FontStyle& fontStyle,
902 FontDescriptionId& validatedFontId )
904 validatedFontId = 0u;
906 for( std::vector<FontDescriptionCacheItem>::const_iterator it = mValidatedFontCache.begin(),
907 endIt = mValidatedFontCache.end();
911 const FontDescriptionCacheItem& item = *it;
913 if( ( fontFamily == item.fontFamily ) &&
914 ( fontStyle == item.fontStyle ) )
916 validatedFontId = item.index;
925 bool FontClient::Plugin::FindFont( FontDescriptionId validatedFontId,
926 PointSize26Dot6 pointSize,
931 for( std::vector<FontIdCacheItem>::const_iterator it = mFontIdCache.begin(),
932 endIt = mFontIdCache.end();
936 const FontIdCacheItem& item = *it;
938 if( ( validatedFontId == item.validatedFontId ) &&
939 ( pointSize == item.pointSize ) )
941 fontId = item.fontId;
949 bool FontClient::Plugin::IsScalable( const FontPath& path )
952 int error = FT_New_Face( mFreeTypeLibrary,
956 if( FT_Err_Ok != error )
958 DALI_LOG_ERROR( "FreeType Cannot check font: %s\n", path.c_str() );
960 return ( ftFace->num_fixed_sizes == 0 );
963 bool FontClient::Plugin::IsScalable( const FontFamily& fontFamily, const FontStyle& fontStyle )
965 // Create a font pattern.
966 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
969 FcResult result = FcResultMatch;
972 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
976 // Get the path to the font file name.
978 GetFcString( match, FC_FILE, path );
979 return IsScalable( path );
981 DALI_LOG_ERROR( "FreeType Cannot check font: %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
985 void FontClient::Plugin::GetFixedSizes( const FontPath& path, Vector< PointSize26Dot6 >& sizes )
987 // Empty the caller container
991 int error = FT_New_Face( mFreeTypeLibrary,
995 if( FT_Err_Ok != error )
997 DALI_LOG_ERROR( "FreeType Cannot check font: %s\n", path.c_str() );
1000 // Fetch the number of fixed sizes available
1001 if ( ftFace->num_fixed_sizes && ftFace->available_sizes )
1003 for ( int i = 0; i < ftFace->num_fixed_sizes; ++i )
1005 sizes.PushBack( ftFace->available_sizes[ i ].size );
1010 void FontClient::Plugin::GetFixedSizes( const FontFamily& fontFamily,
1011 const FontStyle& fontStyle,
1012 Vector< PointSize26Dot6 >& sizes )
1014 // Create a font pattern.
1015 FcPattern* fontFamilyPattern = CreateFontFamilyPattern( fontFamily,
1018 FcResult result = FcResultMatch;
1020 // match the pattern
1021 FcPattern* match = FcFontMatch( NULL /* use default configure */, fontFamilyPattern, &result );
1025 // Get the path to the font file name.
1027 GetFcString( match, FC_FILE, path );
1028 return GetFixedSizes( path, sizes );
1030 DALI_LOG_ERROR( "FreeType Cannot check font: %s %s\n", fontFamily.c_str(), fontStyle.c_str() );
1033 } // namespace Internal
1035 } // namespace TextAbstraction