/*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <dali/internal/text/text-abstraction/shaping-impl.h>
// INTERNAL INCLUDES
-#include <dali/internal/system/common/singleton-service-impl.h>
#include <dali/devel-api/text-abstraction/font-client.h>
#include <dali/devel-api/text-abstraction/glyph-info.h>
#include <dali/integration-api/debug.h>
// EXTERNAL INCLUDES
#include <harfbuzz/hb.h>
#include <harfbuzz/hb-ft.h>
+#include <dali/devel-api/common/singleton-service.h>
+
+namespace
+{
+
+#if defined(DEBUG_ENABLED)
+Dali::Integration::Log::Filter* gLogFilter = Dali::Integration::Log::Filter::New(Debug::NoLogging, false, "LOG_FONT_CLIENT");
+#endif
+
+}
namespace Dali
{
mOffset.Clear();
mFontId = fontId;
- // Reserve some space to avoid reallocations.
- const Length numberOfGlyphs = static_cast<Length>( 1.3f * static_cast<float>( numberOfCharacters ) );
- mIndices.Reserve( numberOfGlyphs );
- mAdvance.Reserve( numberOfGlyphs );
- mCharacterMap.Reserve( numberOfGlyphs );
- mOffset.Reserve( 2u * numberOfGlyphs );
-
TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
TextAbstraction::Internal::FontClient& fontClientImpl = TextAbstraction::GetImplementation( fontClient );
- // Create a FreeType font's face.
- FT_Face face;
+ const FontDescription::Type type = fontClientImpl.GetFontType( fontId );
- face = fontClientImpl.GetFreetypeFace( fontId );
- if( nullptr == face )
+ switch( type )
{
- // Nothing to do if the face is null.
- return 0u;
- }
+ case FontDescription::FACE_FONT:
+ {
+ // Reserve some space to avoid reallocations.
+ const Length numberOfGlyphs = static_cast<Length>( 1.3f * static_cast<float>( numberOfCharacters ) );
+ mIndices.Reserve( numberOfGlyphs );
+ mAdvance.Reserve( numberOfGlyphs );
+ mCharacterMap.Reserve( numberOfGlyphs );
+ mOffset.Reserve( 2u * numberOfGlyphs );
+
+ // Retrieve a FreeType font's face.
+ FT_Face face = fontClientImpl.GetFreetypeFace( fontId );
+ if( nullptr == face )
+ {
+ // Nothing to do if the face is null.
+ return 0u;
+ }
- /* Get our harfbuzz font struct */
- hb_font_t* harfBuzzFont;
- harfBuzzFont = hb_ft_font_create( face, NULL );
+ unsigned int horizontalDpi = 0u;
+ unsigned int verticalDpi = 0u;
+ fontClient.GetDpi( horizontalDpi, verticalDpi );
- /* Create a buffer for harfbuzz to use */
- hb_buffer_t* harfBuzzBuffer = hb_buffer_create();
+ FT_Set_Char_Size( face,
+ 0u,
+ fontClient.GetPointSize( fontId ),
+ horizontalDpi,
+ verticalDpi );
- const bool rtlDirection = IsRightToLeftScript( script );
- hb_buffer_set_direction( harfBuzzBuffer,
- rtlDirection ? HB_DIRECTION_RTL : HB_DIRECTION_LTR ); /* or LTR */
+ /* Get our harfbuzz font struct */
+ hb_font_t* harfBuzzFont;
+ harfBuzzFont = hb_ft_font_create( face, NULL );
- hb_buffer_set_script( harfBuzzBuffer,
- SCRIPT_TO_HARFBUZZ[ script ] ); /* see hb-unicode.h */
+ /* Create a buffer for harfbuzz to use */
+ hb_buffer_t* harfBuzzBuffer = hb_buffer_create();
+ const bool rtlDirection = IsRightToLeftScript( script );
+ hb_buffer_set_direction( harfBuzzBuffer,
+ rtlDirection ? HB_DIRECTION_RTL : HB_DIRECTION_LTR ); /* or LTR */
- char* currentLocale = setlocale(LC_MESSAGES,NULL);
+ hb_buffer_set_script( harfBuzzBuffer,
+ SCRIPT_TO_HARFBUZZ[ script ] ); /* see hb-unicode.h */
- std::istringstream stringStream( currentLocale );
- std::string localeString;
- std::getline(stringStream, localeString, '_');
- hb_buffer_set_language( harfBuzzBuffer, hb_language_from_string( localeString.c_str(), localeString.size() ) );
- /* Layout the text */
- hb_buffer_add_utf32( harfBuzzBuffer, text, numberOfCharacters, 0u, numberOfCharacters );
+ char* currentLocale = setlocale(LC_MESSAGES,NULL);
- hb_shape( harfBuzzFont, harfBuzzBuffer, NULL, 0u );
+ std::istringstream stringStream( currentLocale );
+ std::string localeString;
+ std::getline(stringStream, localeString, '_');
+ hb_buffer_set_language( harfBuzzBuffer, hb_language_from_string( localeString.c_str(), localeString.size() ) );
- /* Get glyph data */
- unsigned int glyphCount;
- hb_glyph_info_t* glyphInfo = hb_buffer_get_glyph_infos( harfBuzzBuffer, &glyphCount );
- hb_glyph_position_t *glyphPositions = hb_buffer_get_glyph_positions( harfBuzzBuffer, &glyphCount );
- const GlyphIndex lastGlyphIndex = glyphCount - 1u;
- for( GlyphIndex i = 0u; i < glyphCount; )
- {
- if( rtlDirection )
- {
- // If the direction is right to left, Harfbuzz retrieves the glyphs in the visual order.
- // The glyphs are needed in the logical order to layout the text in lines.
- // Do not change the order of the glyphs if they belong to the same cluster.
- GlyphIndex rtlIndex = lastGlyphIndex - i;
+ /* Layout the text */
+ hb_buffer_add_utf32( harfBuzzBuffer, text, numberOfCharacters, 0u, numberOfCharacters );
- unsigned int cluster = glyphInfo[rtlIndex].cluster;
- unsigned int previousCluster = cluster;
- Length numberOfGlyphsInCluster = 0u;
+ hb_shape( harfBuzzFont, harfBuzzBuffer, NULL, 0u );
- while( ( cluster == previousCluster ) )
- {
- ++numberOfGlyphsInCluster;
- previousCluster = cluster;
+ /* Get glyph data */
+ unsigned int glyphCount;
+ hb_glyph_info_t* glyphInfo = hb_buffer_get_glyph_infos( harfBuzzBuffer, &glyphCount );
+ hb_glyph_position_t *glyphPositions = hb_buffer_get_glyph_positions( harfBuzzBuffer, &glyphCount );
+ const GlyphIndex lastGlyphIndex = glyphCount - 1u;
- if( rtlIndex > 0u )
+ for( GlyphIndex i = 0u; i < glyphCount; )
+ {
+ if( rtlDirection )
{
- --rtlIndex;
-
- cluster = glyphInfo[rtlIndex].cluster;
+ // If the direction is right to left, Harfbuzz retrieves the glyphs in the visual order.
+ // The glyphs are needed in the logical order to layout the text in lines.
+ // Do not change the order of the glyphs if they belong to the same cluster.
+ GlyphIndex rtlIndex = lastGlyphIndex - i;
+
+ unsigned int cluster = glyphInfo[rtlIndex].cluster;
+ unsigned int previousCluster = cluster;
+ Length numberOfGlyphsInCluster = 0u;
+
+ while( ( cluster == previousCluster ) )
+ {
+ ++numberOfGlyphsInCluster;
+ previousCluster = cluster;
+
+ if( rtlIndex > 0u )
+ {
+ --rtlIndex;
+
+ cluster = glyphInfo[rtlIndex].cluster;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ rtlIndex = lastGlyphIndex - ( i + ( numberOfGlyphsInCluster - 1u ) );
+
+ for( GlyphIndex j = 0u; j < numberOfGlyphsInCluster; ++j )
+ {
+ const GlyphIndex index = rtlIndex + j;
+
+ mIndices.PushBack( glyphInfo[index].codepoint );
+ mAdvance.PushBack( floor( glyphPositions[index].x_advance * FROM_266 ) );
+ mCharacterMap.PushBack( glyphInfo[index].cluster );
+ mOffset.PushBack( floor( glyphPositions[index].x_offset * FROM_266 ) );
+ mOffset.PushBack( floor( glyphPositions[index].y_offset * FROM_266 ) );
+ }
+
+ i += numberOfGlyphsInCluster;
}
else
{
- break;
+ mIndices.PushBack( glyphInfo[i].codepoint );
+ mAdvance.PushBack( floor( glyphPositions[i].x_advance * FROM_266 ) );
+ mCharacterMap.PushBack( glyphInfo[i].cluster );
+ mOffset.PushBack( floor( glyphPositions[i].x_offset * FROM_266 ) );
+ mOffset.PushBack( floor( glyphPositions[i].y_offset * FROM_266 ) );
+
+ ++i;
}
}
- rtlIndex = lastGlyphIndex - ( i + ( numberOfGlyphsInCluster - 1u ) );
-
- for( GlyphIndex j = 0u; j < numberOfGlyphsInCluster; ++j )
+ /* Cleanup */
+ hb_buffer_destroy( harfBuzzBuffer );
+ hb_font_destroy( harfBuzzFont );
+ break;
+ }
+ case FontDescription::BITMAP_FONT:
+ {
+ // Reserve some space to avoid reallocations.
+ // The advance and offset tables can be initialized with zeros as it's not needed to get metrics from the bitmaps here.
+ mIndices.Resize( numberOfCharacters );
+ mAdvance.Resize( numberOfCharacters, 0u );
+ mCharacterMap.Reserve( numberOfCharacters );
+ mOffset.Resize( 2u * numberOfCharacters, 0.f );
+
+ // The utf32 character can be used as the glyph's index.
+ std::copy( text, text + numberOfCharacters, mIndices.Begin() );
+
+ // The glyph to character map is 1 to 1.
+ for( unsigned int index = 0u; index < numberOfCharacters; ++index )
{
- const GlyphIndex index = rtlIndex + j;
-
- mIndices.PushBack( glyphInfo[index].codepoint );
- mAdvance.PushBack( floor( glyphPositions[index].x_advance * FROM_266 ) );
- mCharacterMap.PushBack( glyphInfo[index].cluster );
- mOffset.PushBack( floor( glyphPositions[index].x_offset * FROM_266 ) );
- mOffset.PushBack( floor( glyphPositions[index].y_offset * FROM_266 ) );
+ mCharacterMap.PushBack( index );
}
-
- i += numberOfGlyphsInCluster;
+ break;
}
- else
+ default:
{
- mIndices.PushBack( glyphInfo[i].codepoint );
- mAdvance.PushBack( floor( glyphPositions[i].x_advance * FROM_266 ) );
- mCharacterMap.PushBack( glyphInfo[i].cluster );
- mOffset.PushBack( floor( glyphPositions[i].x_offset * FROM_266 ) );
- mOffset.PushBack( floor( glyphPositions[i].y_offset * FROM_266 ) );
-
- ++i;
+ DALI_LOG_INFO(gLogFilter, Debug::General, " Invalid type of font\n");
}
}
- /* Cleanup */
- hb_buffer_destroy( harfBuzzBuffer );
- hb_font_destroy( harfBuzzFont );
-
return mIndices.Count();
}
projects / platform / core / uifw / dali-adaptor.git / blobdiff