2 * Copyright (c) 2016 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.
17 #include <dali/devel-api/text-abstraction/bidirectional-support.h>
18 #include <dali/devel-api/text-abstraction/font-client.h>
19 #include <dali/devel-api/text-abstraction/font-metrics.h>
20 #include <dali/devel-api/text-abstraction/glyph-info.h>
21 #include <dali/devel-api/text-abstraction/script.h>
22 #include <dali/devel-api/text-abstraction/segmentation.h>
23 #include <dali/devel-api/text-abstraction/shaping.h>
24 #include <dali/public-api/object/base-object.h>
25 #include <dali/devel-api/adaptor-framework/singleton-service.h>
34 namespace TextAbstraction
39 class BidirectionalSupport : public BaseObject
42 BidirectionalSupport()
46 ~BidirectionalSupport()
50 static TextAbstraction::BidirectionalSupport Get()
52 TextAbstraction::BidirectionalSupport bidirectionalSupportHandle;
54 Dali::SingletonService service( Dali::SingletonService::Get() );
57 // Check whether the singleton is already created
58 BaseHandle handle = service.GetSingleton( typeid( TextAbstraction::BidirectionalSupport ) );
61 // If so, downcast the handle
62 BidirectionalSupport* impl = dynamic_cast< Internal::BidirectionalSupport* >( handle.GetObjectPtr() );
63 bidirectionalSupportHandle = TextAbstraction::BidirectionalSupport( impl );
65 else // create and register the object
67 bidirectionalSupportHandle = TextAbstraction::BidirectionalSupport( new BidirectionalSupport );
68 service.Register( typeid( bidirectionalSupportHandle ), bidirectionalSupportHandle );
71 return bidirectionalSupportHandle;
73 BidiInfoIndex CreateInfo( const Character* const paragraph, Length numberOfCharacters ){return 0;}
75 void DestroyInfo( BidiInfoIndex bidiInfoIndex )
79 void Reorder( BidiInfoIndex bidiInfoIndex,CharacterIndex firstCharacterIndex,Length numberOfCharacters,CharacterIndex* visualToLogicalMap )
83 bool GetMirroredText( Character* text,CharacterDirection* directions,Length numberOfCharacters )
88 bool GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const
93 void GetCharactersDirection( BidiInfoIndex bidiInfoIndex, CharacterDirection* directions, Length numberOfCharacters )
96 }; // class BidirectionalSupport
99 class FontClient : public BaseObject
103 : mDpiHorizontal( 0 ),
110 static Dali::TextAbstraction::FontClient Get()
112 Dali::TextAbstraction::FontClient fontClientHandle;
114 Dali::SingletonService service( SingletonService::Get() );
117 // Check whether the singleton is already created
118 Dali::BaseHandle handle = service.GetSingleton( typeid( Dali::TextAbstraction::FontClient ) );
121 // If so, downcast the handle
122 FontClient* impl = dynamic_cast< Dali::TextAbstraction::Internal::FontClient* >( handle.GetObjectPtr() );
123 fontClientHandle = Dali::TextAbstraction::FontClient( impl );
125 else // create and register the object
127 fontClientHandle = Dali::TextAbstraction::FontClient( new FontClient );
128 service.Register( typeid( fontClientHandle ), fontClientHandle );
132 return fontClientHandle;
135 void SetDpi( unsigned int horizontalDpi, unsigned int verticalDpi ){}
136 void GetDpi( unsigned int& horizontalDpi, unsigned int& verticalDpi ){horizontalDpi=verticalDpi=96;}
138 void ResetSystemDefaults(){}
139 void GetDefaultFonts( FontList& defaultFonts ){}
140 void GetDefaultPlatformFontDescription( FontDescription& fontDescription ){}
141 void GetSystemFonts( FontList& systemFonts ){}
142 void GetDescription( FontId id, FontDescription& fontDescription ){}
143 PointSize26Dot6 GetPointSize( FontId id ){return 9;}
144 FontId FindDefaultFont( Character charcode, PointSize26Dot6 pointSize, bool preferColor ){return 0;}
145 FontId FindFallbackFont( Character charcode, const FontDescription& fontDescription, PointSize26Dot6 pointSize, bool preferColor ){return 0;}
146 FontId GetFontId( const FontPath& path, PointSize26Dot6 pointSize, FaceIndex faceIndex ){return 0;}
147 FontId GetFontId( const FontDescription& fontDescription,PointSize26Dot6 pointSize, FaceIndex faceIndex ){return 0;}
148 bool IsScalable( const FontPath& path ){return true;}
149 bool IsScalable( const FontDescription& fontDescription ){return true;}
150 void GetFixedSizes( const FontPath& path, Dali::Vector< PointSize26Dot6>& sizes ){}
151 void GetFixedSizes( const FontDescription& fontDescription, Dali::Vector< PointSize26Dot6 >& sizes ){}
152 void GetFontMetrics( FontId fontId, FontMetrics& metrics ){}
153 GlyphIndex GetGlyphIndex( FontId fontId, Character charcode ){return 0;}
154 bool GetGlyphMetrics( GlyphInfo* array, uint32_t size, bool horizontal ){return true;}
155 void CreateBitmap( FontId fontId, GlyphIndex glyphIndex, Dali::TextAbstraction::FontClient::GlyphBufferData& data ){}
156 PixelData CreateBitmap( FontId fontId, GlyphIndex glyphIndex ){return PixelData();}
157 void CreateVectorBlob( FontId fontId, GlyphIndex glyphIndex, VectorBlob*& blob,
158 unsigned int& blobLength, unsigned int& nominalWidth, unsigned int& nominalHeight )
162 const GlyphInfo& GetEllipsisGlyph( PointSize26Dot6 pointSize ){return mGlyphInfo;}
163 bool IsColorGlyph( FontId fontId, GlyphIndex glyphIndex ){return false;}
165 unsigned int mDpiHorizontal;
166 unsigned int mDpiVertical;
167 GlyphInfo mGlyphInfo;
168 }; // class FontClient
171 class Shaping : public BaseObject
174 Shaping() : mText(NULL)
182 static Dali::TextAbstraction::Shaping Get()
184 Dali::TextAbstraction::Shaping shapingHandle;
186 Dali::SingletonService service( SingletonService::Get() );
189 // Check whether the singleton is already created
190 Dali::BaseHandle handle = service.GetSingleton( typeid( Dali::TextAbstraction::Shaping ) );
193 // If so, downcast the handle
194 Shaping* impl = dynamic_cast< Dali::TextAbstraction::Internal::Shaping* >( handle.GetObjectPtr() );
195 shapingHandle = Dali::TextAbstraction::Shaping( impl );
197 else // create and register the object
199 shapingHandle = Dali::TextAbstraction::Shaping( new Shaping );
200 service.Register( typeid( shapingHandle ), shapingHandle );
203 return shapingHandle;
206 void GetGlyphs(GlyphInfo* glyphStore, unsigned int*mappingTable)
208 // Return store & mapping table (0, 1, 2, 3... N-1))
211 memcpy( glyphStore, mText, mNumChars );
213 for( unsigned int i=0; i<mNumChars ; ++i )
219 Length Shape(unsigned int const* text, unsigned int numChars, unsigned int fontId, Script script)
221 mText = new unsigned char[numChars];
222 mNumChars = numChars;
224 memcpy( mText, text, numChars );
229 unsigned char* mText;
230 unsigned int mNumChars;
236 inline static TextAbstraction::Internal::BidirectionalSupport& GetImplementation( TextAbstraction::BidirectionalSupport& bidirectionalSupport )
238 DALI_ASSERT_ALWAYS( bidirectionalSupport && "bidirectional support handle is empty" );
239 BaseObject& object = bidirectionalSupport.GetBaseObject();
240 return static_cast<TextAbstraction::Internal::BidirectionalSupport&>(object);
243 inline static const TextAbstraction::Internal::BidirectionalSupport& GetImplementation( const TextAbstraction::BidirectionalSupport& bidirectionalSupport )
245 DALI_ASSERT_ALWAYS( bidirectionalSupport && "bidirectional support handle is empty" );
246 const BaseObject& object = bidirectionalSupport.GetBaseObject();
247 return static_cast<const TextAbstraction::Internal::BidirectionalSupport&>(object);
250 inline static TextAbstraction::Internal::FontClient& GetImplementation(TextAbstraction::FontClient& fontClient)
252 DALI_ASSERT_ALWAYS( fontClient && "fontClient handle is empty" );
253 BaseObject& handle = fontClient.GetBaseObject();
254 return static_cast<TextAbstraction::Internal::FontClient&>(handle);
257 inline static const TextAbstraction::Internal::FontClient& GetImplementation(const TextAbstraction::FontClient& fontClient)
259 DALI_ASSERT_ALWAYS( fontClient && "fontClient handle is empty" );
260 const BaseObject& handle = fontClient.GetBaseObject();
261 return static_cast<const TextAbstraction::Internal::FontClient&>(handle);
264 inline static TextAbstraction::Internal::Shaping& GetImplementation(TextAbstraction::Shaping& shaping)
266 DALI_ASSERT_ALWAYS( shaping && "shaping handle is empty" );
267 BaseObject& handle = shaping.GetBaseObject();
268 return static_cast<TextAbstraction::Internal::Shaping&>(handle);
271 inline static const TextAbstraction::Internal::Shaping& GetImplementation(const TextAbstraction::Shaping& shaping)
273 DALI_ASSERT_ALWAYS( shaping && "shaping handle is empty" );
274 const BaseObject& handle = shaping.GetBaseObject();
275 return static_cast<const TextAbstraction::Internal::Shaping&>(handle);
279 ////////////////////////////////////////////////////////////////////////////////
280 /******************************************************************************/
282 namespace TextAbstraction
284 const PointSize26Dot6 FontClient::DEFAULT_POINT_SIZE = 768u; // 12*64
286 BidirectionalSupport::BidirectionalSupport()
290 BidirectionalSupport::~BidirectionalSupport()
294 BidirectionalSupport::BidirectionalSupport( Internal::BidirectionalSupport* implementation )
295 : BaseHandle( implementation )
299 BidirectionalSupport BidirectionalSupport::Get()
301 return Internal::BidirectionalSupport::Get();
304 BidiInfoIndex BidirectionalSupport::CreateInfo( const Character* const paragraph,
305 Length numberOfCharacters )
307 return GetImplementation( *this ).CreateInfo( paragraph, numberOfCharacters );
310 void BidirectionalSupport::DestroyInfo( BidiInfoIndex bidiInfoIndex )
312 GetImplementation( *this ).DestroyInfo( bidiInfoIndex );
315 void BidirectionalSupport::Reorder( BidiInfoIndex bidiInfoIndex,
316 CharacterIndex firstCharacterIndex,
317 Length numberOfCharacters,
318 CharacterIndex* visualToLogicalMap )
320 GetImplementation( *this ).Reorder( bidiInfoIndex, firstCharacterIndex, numberOfCharacters, visualToLogicalMap );
323 bool BidirectionalSupport::GetMirroredText( Character* text,
324 CharacterDirection* directions,
325 Length numberOfCharacters )
327 return GetImplementation( *this ).GetMirroredText( text, directions, numberOfCharacters );
330 bool BidirectionalSupport::GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const
332 return GetImplementation( *this ).GetParagraphDirection( bidiInfoIndex );
335 void BidirectionalSupport::GetCharactersDirection( BidiInfoIndex bidiInfoIndex,
336 CharacterDirection* directions,
337 Length numberOfCharacters )
339 GetImplementation( *this ).GetCharactersDirection( bidiInfoIndex, directions, numberOfCharacters );
343 FontClient FontClient::Get()
345 return Internal::FontClient::Get();
348 FontClient::FontClient()
352 FontClient::~FontClient()
356 FontClient::FontClient( const FontClient& handle )
357 : BaseHandle( handle )
361 FontClient::GlyphBufferData::GlyphBufferData()
365 FontClient::GlyphBufferData::~GlyphBufferData()
369 FontClient& FontClient::operator=( const FontClient& handle )
371 BaseHandle::operator=( handle );
375 void FontClient::SetDpi( unsigned int horizontalDpi, unsigned int verticalDpi )
377 GetImplementation(*this).SetDpi( horizontalDpi, verticalDpi );
380 void FontClient::GetDpi( unsigned int& horizontalDpi, unsigned int& verticalDpi )
382 GetImplementation(*this).GetDpi( horizontalDpi, verticalDpi );
385 void FontClient::ResetSystemDefaults()
387 GetImplementation(*this).ResetSystemDefaults();
390 void FontClient::GetDefaultFonts( FontList& defaultFonts )
392 GetImplementation(*this).GetDefaultFonts( defaultFonts );
395 void FontClient::GetDefaultPlatformFontDescription( FontDescription& fontDescription )
397 GetImplementation(*this).GetDefaultPlatformFontDescription( fontDescription );
400 void FontClient::GetSystemFonts( FontList& systemFonts )
402 GetImplementation(*this).GetSystemFonts( systemFonts );
405 void FontClient::GetDescription( FontId id, FontDescription& fontDescription )
407 GetImplementation(*this).GetDescription( id, fontDescription );
410 PointSize26Dot6 FontClient::GetPointSize( FontId id )
412 return GetImplementation(*this).GetPointSize( id );
415 FontId FontClient::FindDefaultFont( Character charcode, PointSize26Dot6 pointSize, bool preferColor )
417 return GetImplementation(*this).FindDefaultFont( charcode, pointSize, preferColor );
420 FontId FontClient::FindFallbackFont( Character charcode, const FontDescription& fontDescription, PointSize26Dot6 pointSize, bool preferColor )
422 return GetImplementation(*this).FindFallbackFont( charcode, fontDescription, pointSize, preferColor );
425 FontId FontClient::GetFontId( const FontPath& path, PointSize26Dot6 pointSize, FaceIndex faceIndex )
427 return GetImplementation(*this).GetFontId( path, pointSize, faceIndex );
430 FontId FontClient::GetFontId( const FontDescription& fontDescription,
431 PointSize26Dot6 pointSize,
432 FaceIndex faceIndex )
434 return GetImplementation(*this).GetFontId( fontDescription,
439 bool FontClient::IsScalable( const FontPath& path )
441 return GetImplementation(*this).IsScalable( path );
444 bool FontClient::IsScalable( const FontDescription& fontDescription )
446 return GetImplementation(*this).IsScalable( fontDescription );
449 void FontClient::GetFixedSizes( const FontPath& path, Dali::Vector< PointSize26Dot6>& sizes )
451 GetImplementation(*this).GetFixedSizes( path, sizes );
454 void FontClient::GetFixedSizes( const FontDescription& fontDescription,
455 Dali::Vector< PointSize26Dot6 >& sizes )
457 GetImplementation(*this).GetFixedSizes( fontDescription, sizes );
460 void FontClient::GetFontMetrics( FontId fontId, FontMetrics& metrics )
462 GetImplementation(*this).GetFontMetrics( fontId, metrics );
465 GlyphIndex FontClient::GetGlyphIndex( FontId fontId, Character charcode )
467 return GetImplementation(*this).GetGlyphIndex( fontId, charcode );
470 bool FontClient::GetGlyphMetrics( GlyphInfo* array, uint32_t size, GlyphType type, bool horizontal )
472 return GetImplementation(*this).GetGlyphMetrics( array, size, horizontal );
475 void FontClient::CreateBitmap( FontId fontId, GlyphIndex glyphIndex, Dali::TextAbstraction::FontClient::GlyphBufferData& data )
477 GetImplementation(*this).CreateBitmap( fontId, glyphIndex, data );
480 PixelData FontClient::CreateBitmap( FontId fontId, GlyphIndex glyphIndex )
482 return GetImplementation(*this).CreateBitmap( fontId, glyphIndex );
485 void FontClient::CreateVectorBlob( FontId fontId,
486 GlyphIndex glyphIndex,
488 unsigned int& blobLength,
489 unsigned int& nominalWidth,
490 unsigned int& nominalHeight )
492 GetImplementation(*this).CreateVectorBlob( fontId, glyphIndex, blob, blobLength, nominalWidth, nominalHeight );
495 const GlyphInfo& FontClient::GetEllipsisGlyph( PointSize26Dot6 pointSize )
497 return GetImplementation(*this).GetEllipsisGlyph( pointSize );
500 bool FontClient::IsColorGlyph( FontId fontId, GlyphIndex glyphIndex )
502 return GetImplementation(*this).IsColorGlyph( fontId, glyphIndex );
505 FontClient::FontClient( Internal::FontClient* internal )
506 : BaseHandle( internal )
510 FontMetrics::FontMetrics()
514 underlinePosition( 0.f ),
515 underlineThickness( 0.f )
519 GlyphInfo::GlyphInfo()
523 Script GetCharacterScript(unsigned int x)
527 bool HasLigatureMustBreak(Script x){return false;}
528 bool IsCommonScript(unsigned int character){ return false;}
529 bool IsNewParagraph(unsigned int character){return false;}
530 bool IsRightToLeftScript(Script){return false;}
531 bool IsWhiteSpace(unsigned int character)
533 return character < 0x21;
536 Segmentation Segmentation::Get(){ return Segmentation();}
537 Segmentation::Segmentation(){}
538 Segmentation::~Segmentation(){}
539 void Segmentation::GetLineBreakPositions(unsigned int const*, unsigned int, char*){}
540 void Segmentation::GetWordBreakPositions(unsigned int const*, unsigned int, char*){}
542 Shaping Shaping::Get()
544 return TextAbstraction::Internal::Shaping::Get();
551 Shaping::Shaping( Internal::Shaping* internal )
552 : BaseHandle( internal )
560 void Shaping::GetGlyphs(GlyphInfo* glyphStore, unsigned int*mappingTable)
562 // Return store & mapping table (0, 1, 2, 3... N-1))
563 GetImplementation(*this).GetGlyphs(glyphStore, mappingTable);
566 Length Shaping::Shape(unsigned int const* text, unsigned int numChars, unsigned int fontId, Script script)
568 return GetImplementation(*this).Shape( text, numChars, fontId, script );