// EXTERNAL INCLUDES
#include <memory.h>
#include <dali/integration-api/debug.h>
-#include <dali/public-api/adaptor-framework/singleton-service.h>
-#include <dali/public-api/text-abstraction/font-client.h>
-#include <dali/public-api/text-abstraction/script.h>
+#include <dali/devel-api/adaptor-framework/singleton-service.h>
+#include <dali/devel-api/text-abstraction/font-client.h>
+#include <dali/devel-api/text-abstraction/script.h>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/logical-model-impl.h>
return script;
}
-/**
- * @brief Whether the character is valid for all scripts. i.e. the white space.
- *
- * @param[in] character The character.
- *
- * @return @e true if the character is valid for all scripts.
- */
-bool IsValidForAllScripts( Character character )
-{
- return ( TextAbstraction::IsWhiteSpace( character ) ||
- TextAbstraction::IsZeroWidthNonJoiner( character ) ||
- TextAbstraction::IsZeroWidthJoiner( character ) ||
- TextAbstraction::IsZeroWidthSpace( character ) ||
- TextAbstraction::IsLeftToRightMark( character ) ||
- TextAbstraction::IsRightToLeftMark( character ) ||
- TextAbstraction::IsThinSpace( character ) );
-}
-
bool ValidateFontsPerScript::FindValidFont( FontId fontId ) const
{
for( Vector<FontId>::ConstIterator it = mValidFonts.Begin(),
}
void MultilanguageSupport::SetScripts( const Vector<Character>& text,
- const Vector<LineBreakInfo>& lineBreakInfo,
Vector<ScriptRun>& scripts )
{
const Length numberOfCharacters = text.Count();
// Reserve some space to reduce the number of reallocations.
scripts.Reserve( numberOfCharacters << 2u );
- // Whether the first valid script need to be set.
- bool firstValidScript = true;
+ // Whether the first valid script needs to be set.
+ bool isFirstScriptToBeSet = true;
// Whether the first valid script is a right to left script.
bool isParagraphRTL = false;
Length numberOfAllScriptCharacters = 0u;
// Pointers to the text and break info buffers.
- const Character* textBuffer = text.Begin();
- const LineBreakInfo* breakInfoBuffer = lineBreakInfo.Begin();
+ const Character* const textBuffer = text.Begin();
// Traverse all characters and set the scripts.
for( Length index = 0u; index < numberOfCharacters; ++index )
{
Character character = *( textBuffer + index );
- LineBreakInfo breakInfo = *( breakInfoBuffer + index );
+
+ // Get the script of the character.
+ Script script = TextAbstraction::GetCharacterScript( character );
// Some characters (like white spaces) are valid for many scripts. The rules to set a script
// for them are:
// Skip those characters valid for many scripts like white spaces or '\n'.
bool endOfText = index == numberOfCharacters;
while( !endOfText &&
- IsValidForAllScripts( character ) )
+ ( TextAbstraction::COMMON == script ) )
{
// Count all these characters to be added into a script.
++numberOfAllScriptCharacters;
- if( TextAbstraction::LINE_MUST_BREAK == breakInfo )
+ if( TextAbstraction::IsNewParagraph( character ) )
{
- // The next character is a new paragraph.
- // Know when there is a new paragraph is needed because if there is a white space
+ // The character is a new paragraph.
+ // To know when there is a new paragraph is needed because if there is a white space
// between two scripts with different directions, it is added to the script with
// the same direction than the first script of the paragraph.
- firstValidScript = true;
- isParagraphRTL = false;
+ isFirstScriptToBeSet = true;
+
+ // Characters common to all scripts at the end of the paragraph are added to the last script (if the last one is not unknown).
+ if( TextAbstraction::UNKNOWN != currentScriptRun.script )
+ {
+ currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
+ numberOfAllScriptCharacters = 0u;
+ }
}
// Get the next character.
if( !endOfText )
{
character = *( textBuffer + index );
- breakInfo = *( breakInfoBuffer + index );
+ script = TextAbstraction::GetCharacterScript( character );
}
}
break;
}
- // Get the script of the character.
- Script script = TextAbstraction::GetCharacterScript( character );
-
// Check if it is the first character of a paragraph.
- if( firstValidScript &&
- ( TextAbstraction::UNKNOWN != script ) )
+ if( isFirstScriptToBeSet &&
+ ( TextAbstraction::UNKNOWN != script ) &&
+ ( TextAbstraction::COMMON != script ) )
{
// Sets the direction of the first valid script.
isParagraphRTL = TextAbstraction::IsRightToLeftScript( script );
- firstValidScript = false;
+ isFirstScriptToBeSet = false;
}
- if( script != currentScriptRun.script )
+ if( ( script != currentScriptRun.script ) &&
+ ( TextAbstraction::COMMON != script ) )
{
// Current run needs to be stored and a new one initialized.
- if( isParagraphRTL != TextAbstraction::IsRightToLeftScript( script ) )
+ if( ( isParagraphRTL == TextAbstraction::IsRightToLeftScript( currentScriptRun.script ) ) &&
+ ( TextAbstraction::UNKNOWN != currentScriptRun.script ) )
{
- // Current script has different direction than the first script of the paragraph.
+ // Previous script has the same direction than the first script of the paragraph.
+ // All the previously skipped characters need to be added to the previous script before it's stored.
+ currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
+ numberOfAllScriptCharacters = 0u;
+ }
+ else if( ( TextAbstraction::IsRightToLeftScript( currentScriptRun.script ) == TextAbstraction::IsRightToLeftScript( script ) ) &&
+ ( TextAbstraction::UNKNOWN != currentScriptRun.script ) )
+ {
+ // Current script and previous one have the same direction.
// All the previously skipped characters need to be added to the previous script before it's stored.
currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
numberOfAllScriptCharacters = 0u;
// Initialize the new one.
currentScriptRun.characterRun.characterIndex = currentScriptRun.characterRun.characterIndex + currentScriptRun.characterRun.numberOfCharacters;
- currentScriptRun.characterRun.numberOfCharacters = numberOfAllScriptCharacters; // Adds the white spaces which are at the begining of the script.
+ currentScriptRun.characterRun.numberOfCharacters = numberOfAllScriptCharacters + 1u; // Adds the white spaces which are at the begining of the script.
currentScriptRun.script = script;
numberOfAllScriptCharacters = 0u;
}
else
{
- // Adds white spaces between characters.
- currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
- numberOfAllScriptCharacters = 0u;
- }
+ if( TextAbstraction::UNKNOWN != currentScriptRun.script )
+ {
+ // Adds white spaces between characters.
+ currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
+ numberOfAllScriptCharacters = 0u;
- if( TextAbstraction::LINE_MUST_BREAK == breakInfo )
- {
- // The next character is a new paragraph.
- firstValidScript = true;
- isParagraphRTL = false;
+ // Add one more character to the run.
+ ++currentScriptRun.characterRun.numberOfCharacters;
+ }
}
-
- // Add one more character to the run.
- ++currentScriptRun.characterRun.numberOfCharacters;
}
// Add remaining characters into the last script.
currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
- if( 0u != currentScriptRun.characterRun.numberOfCharacters )
- {
- if( TextAbstraction::UNKNOWN == currentScriptRun.script )
- {
- // There are only white spaces in the last script. Set the latin script.
- currentScriptRun.script = TextAbstraction::LATIN;
- }
- // Store the last run.
- scripts.PushBack( currentScriptRun );
+ DALI_ASSERT_DEBUG( ( 0u != currentScriptRun.characterRun.numberOfCharacters ) && "MultilanguageSupport::SetScripts() Trying to insert a script run with zero characters." );
+
+ if( TextAbstraction::UNKNOWN == currentScriptRun.script )
+ {
+ // There are only white spaces in the last script. Set the latin script.
+ currentScriptRun.script = TextAbstraction::LATIN;
}
-}
-void MultilanguageSupport::ReplaceScripts( LogicalModel& model,
- CharacterIndex characterIndex,
- Length numberOfCharactersToRemove,
- Length numberOfCharactersToInsert )
-{
+ // Store the last run.
+ scripts.PushBack( currentScriptRun );
}
void MultilanguageSupport::ValidateFonts( const Vector<Character>& text,
const Vector<ScriptRun>& scripts,
Vector<FontRun>& fonts )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->MultilanguageSupport::ValidateFonts\n" );
const Length numberOfCharacters = text.Count();
if( 0u == numberOfCharacters )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--MultilanguageSupport::ValidateFonts\n" );
// Nothing to do if there are no characters.
return;
}
scriptRunIt,
scriptRunEndIt );
+#ifdef DEBUG_ENABLED
+ {
+ Dali::TextAbstraction::FontDescription description;
+ fontClient.GetDescription( fontId, description );
+
+ DALI_LOG_INFO( gLogFilter,
+ Debug::Verbose,
+ " Initial font set\n Character : %x, Script : %s, Font : %s \n",
+ character,
+ Dali::TextAbstraction::ScriptName[script],
+ description.path.c_str() );
+ }
+#endif
+
if( TextAbstraction::UNKNOWN == script )
{
DALI_LOG_WARNING( "MultilanguageSupport::ValidateFonts. Unknown script!" );
// Whether the font being validated is a default one not set by the user.
const bool isDefault = ( 0u == fontId );
+ DALI_LOG_INFO( gLogFilter,
+ Debug::Verbose,
+ " Is a default font : %s\n",
+ ( isDefault ? "true" : "false" ) );
+
// The default font point size.
PointSize26Dot6 pointSize = TextAbstraction::FontClient::DEFAULT_POINT_SIZE;
if( NULL == validateFontsPerScript )
{
validateFontsPerScript = new ValidateFontsPerScript();
+
+ *( validFontsPerScriptCacheBuffer + script ) = validateFontsPerScript;
}
if( NULL != validateFontsPerScript )
else
{
// Add the font to the valid font cache.
+
+ // At this point the validated font supports the given character. However, characters
+ // common for all scripts, like white spaces or new paragraph characters, need to be
+ // processed differently.
+ //
+ // i.e. A white space can have assigned a DEVANAGARI script but the font assigned may not
+ // support none of the DEVANAGARI glyphs. This font can't be added to the cache as a valid
+ // font for the DEVANAGARI script but the COMMON one.
+ if( TextAbstraction::IsCommonScript( character ) )
+ {
+ validateFontsPerScript = *( validFontsPerScriptCacheBuffer + TextAbstraction::COMMON );
+
+ if( NULL == validateFontsPerScript )
+ {
+ validateFontsPerScript = new ValidateFontsPerScript();
+
+ *( validFontsPerScriptCacheBuffer + TextAbstraction::COMMON ) = validateFontsPerScript;
+ }
+ }
+
validateFontsPerScript->mValidFonts.PushBack( fontId );
}
}
fontId = fontClient.FindDefaultFont( UTF32_A, pointSize );
}
-#ifdef DEBUG_ENABLED
- Dali::TextAbstraction::FontDescription description;
- fontClient.GetDescription( fontId, description );
- DALI_LOG_INFO( gLogFilter, Debug::Concise, "Script: %s; Selected font: %s\n", Dali::TextAbstraction::ScriptName[script], description.path.c_str() );
-#endif
// Cache the font.
*( defaultFontPerScriptCacheBuffer + script ) = fontId;
}
}
+#ifdef DEBUG_ENABLED
+ {
+ Dali::TextAbstraction::FontDescription description;
+ fontClient.GetDescription( fontId, description );
+ DALI_LOG_INFO( gLogFilter,
+ Debug::Verbose,
+ " Validated font set\n Character : %x, Script : %s, Font : %s \n",
+ character,
+ Dali::TextAbstraction::ScriptName[script],
+ description.path.c_str() );
+ }
+#endif
+
// The font is now validated.
if( ( fontId != currentFontRun.fontId ) ||
// Store the last run.
fonts.PushBack( currentFontRun );
}
-}
-
-void MultilanguageSupport::ValidateFonts( LogicalModel& model,
- CharacterIndex characterIndex,
- Length numberOfCharactersToRemove,
- Length numberOfCharactersToInsert )
-{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--MultilanguageSupport::ValidateFonts\n" );
}
} // namespace Internal
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