// EXTERNAL INCLUDES
#include <dali/devel-api/text-abstraction/segmentation.h>
#ifdef DEBUG_ENABLED
-#include <string>
#include <dali/integration-api/debug.h>
+#include <string>
#endif
// INTERNAL INCLUDES
namespace
{
-
#if defined(DEBUG_ENABLED)
- Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_SEGMENTATION");
+Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_SEGMENTATION");
#endif
} // namespace
-
namespace Dali
{
-
namespace Toolkit
{
-
namespace Text
{
-
-void SetLineBreakInfo( const Vector<Character>& text,
- Vector<LineBreakInfo>& lineBreakInfo )
+void SetLineBreakInfo(const Vector<Character>& text,
+ CharacterIndex startIndex,
+ Length numberOfCharacters,
+ Vector<LineBreakInfo>& lineBreakInfo)
{
- const Length numberOfCharacters = text.Count();
+ const Length totalNumberOfCharacters = text.Count();
- if( 0u == numberOfCharacters )
+ if(0u == totalNumberOfCharacters)
{
// Nothing to do if there are no characters.
return;
}
// Retrieve the line break info.
- lineBreakInfo.Resize( numberOfCharacters );
- TextAbstraction::Segmentation::Get().GetLineBreakPositions( text.Begin(),
- numberOfCharacters,
- lineBreakInfo.Begin() );
+ lineBreakInfo.Resize(totalNumberOfCharacters);
+
+ // Whether the current buffer is being updated or is set from scratch.
+ const bool updateCurrentBuffer = numberOfCharacters < totalNumberOfCharacters;
+
+ LineBreakInfo* lineBreakInfoBuffer = NULL;
+ Vector<LineBreakInfo> newLineBreakInfo;
+
+ if(updateCurrentBuffer)
+ {
+ newLineBreakInfo.Resize(numberOfCharacters);
+ lineBreakInfoBuffer = newLineBreakInfo.Begin();
+ }
+ else
+ {
+ lineBreakInfoBuffer = lineBreakInfo.Begin();
+ }
+
+ // Retrieve the line break info.
+ TextAbstraction::Segmentation::Get().GetLineBreakPositions(text.Begin() + startIndex,
+ numberOfCharacters,
+ lineBreakInfoBuffer);
+
+ // If the line break info is updated, it needs to be inserted in the model.
+ if(updateCurrentBuffer)
+ {
+ lineBreakInfo.Insert(lineBreakInfo.Begin() + startIndex,
+ newLineBreakInfo.Begin(),
+ newLineBreakInfo.End());
+ lineBreakInfo.Resize(totalNumberOfCharacters);
+ }
+
#ifdef DEBUG_ENABLED
- if( gLogFilter->IsEnabledFor(Debug::Verbose) )
+ if(gLogFilter->IsEnabledFor(Debug::Verbose))
{
std::string utf8;
- Utf32ToUtf8( text.Begin(), numberOfCharacters, utf8 );
+ Utf32ToUtf8(text.Begin(), numberOfCharacters, utf8);
std::string info;
- info.reserve( numberOfCharacters );
- for( unsigned int i=0; i<lineBreakInfo.Count(); ++i )
+ info.reserve(numberOfCharacters);
+ for(unsigned int i = 0; i < lineBreakInfo.Count(); ++i)
{
- info.push_back( static_cast<char>('0' + lineBreakInfo[i]) );
+ info.push_back(static_cast<char>('0' + lineBreakInfo[i]));
}
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "SetLineBreakInfo Characters: %s\n", utf8.c_str() );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "SetLineBreakInfo Break info: %s\n", info.c_str() );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "SetLineBreakInfo Characters: %s\n", utf8.c_str());
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "SetLineBreakInfo Break info: %s\n", info.c_str());
}
#endif
}
-void SetWordBreakInfo( const Vector<Character>& text,
- Vector<WordBreakInfo>& wordBreakInfo )
+void SetWordBreakInfo(const Vector<Character>& text,
+ CharacterIndex startIndex,
+ Length numberOfCharacters,
+ Vector<WordBreakInfo>& wordBreakInfo)
{
- const Length numberOfCharacters = text.Count();
+ const Length totalNumberOfCharacters = text.Count();
- if( 0u == numberOfCharacters )
+ if(0u == totalNumberOfCharacters)
{
// Nothing to do if there are no characters.
return;
}
+ // Resize the vector.
+ wordBreakInfo.Resize(totalNumberOfCharacters);
+
+ // Whether the current buffer is being updated or is set from scratch.
+ const bool updateCurrentBuffer = numberOfCharacters < totalNumberOfCharacters;
+
+ WordBreakInfo* wordBreakInfoBuffer = NULL;
+ Vector<WordBreakInfo> newWordBreakInfo;
+
+ if(updateCurrentBuffer)
+ {
+ newWordBreakInfo.Resize(numberOfCharacters);
+ wordBreakInfoBuffer = newWordBreakInfo.Begin();
+ }
+ else
+ {
+ wordBreakInfoBuffer = wordBreakInfo.Begin();
+ }
+
// Retrieve the word break info.
- wordBreakInfo.Resize( numberOfCharacters );
- TextAbstraction::Segmentation::Get().GetWordBreakPositions( text.Begin(),
- numberOfCharacters,
- wordBreakInfo.Begin() );
+ TextAbstraction::Segmentation::Get().GetWordBreakPositions(text.Begin() + startIndex,
+ numberOfCharacters,
+ wordBreakInfoBuffer);
+
+ // If the word break info is updated, it needs to be inserted in the model.
+ if(updateCurrentBuffer)
+ {
+ wordBreakInfo.Insert(wordBreakInfo.Begin() + startIndex,
+ newWordBreakInfo.Begin(),
+ newWordBreakInfo.End());
+ wordBreakInfo.Resize(totalNumberOfCharacters);
+ }
+
#ifdef DEBUG_ENABLED
- if( gLogFilter->IsEnabledFor(Debug::Verbose) )
+ if(gLogFilter->IsEnabledFor(Debug::Verbose))
{
std::string utf8;
- Utf32ToUtf8( text.Begin(), numberOfCharacters, utf8 );
+ Utf32ToUtf8(text.Begin(), totalNumberOfCharacters, utf8);
std::string info;
- info.reserve( numberOfCharacters );
- for( unsigned int i=0; i<wordBreakInfo.Count(); ++i )
+ info.reserve(totalNumberOfCharacters);
+ for(unsigned int i = 0; i < wordBreakInfo.Count(); ++i)
{
- info.push_back( static_cast<char>('0' + wordBreakInfo[i]) );
+ info.push_back(static_cast<char>('0' + wordBreakInfo[i]));
}
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "SetWordBreakInfo Characters: %s\n", utf8.c_str() );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "SetWordBreakInfo Break info: %s\n", info.c_str() );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "SetWordBreakInfo Characters: %s\n", utf8.c_str());
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "SetWordBreakInfo Break info: %s\n", info.c_str());
}
#endif
}