// CLASS HEADER
#include <dali-toolkit/internal/text/logical-model.h>
+// EXTERNAL INCLUDES
+#include <memory.h>
+
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/bidirectional-line-info-run.h>
#include <dali-toolkit/internal/text/bidirectional-paragraph-info-run.h>
#include <dali-toolkit/internal/text/font-run.h>
#include <dali-toolkit/internal/text/script-run.h>
-// EXTERNAL INCLUDES
-#include <memory.h>
-
namespace Dali
{
struct LogicalModel::Impl
{
- Vector<Character> mText;
- Vector<ScriptRun> mScriptRuns;
- Vector<FontRun> mFontRuns;
- Vector<LineBreakInfo> mLineBreakInfo;
- Vector<WordBreakInfo> mWordBreakInfo;
+ Vector<Character> mText;
+ Vector<ScriptRun> mScriptRuns;
+ Vector<FontRun> mFontRuns;
+ Vector<LineBreakInfo> mLineBreakInfo;
+ Vector<WordBreakInfo> mWordBreakInfo;
+ Vector<BidirectionalParagraphInfoRun> mBidirectionalParagraphInfo;
+
+ Vector<BidirectionalLineInfoRun> mBidirectionalLineInfo;
+ Vector<CharacterIndex> mLogicalToVisualMap; ///< Bidirectional logical to visual conversion table.
+ Vector<CharacterIndex> mVisualToLogicalMap; ///< Bidirectional visual to logical conversion table.
- GetRunCache mGetScriptCache; ///< Caches the GetNumberOfScriptRuns( characterIndex, numberOfCharacters ) operation.
- GetRunCache mGetFontCache; ///< Caches the GetNumberOfFontRuns( characterIndex, numberOfCharacters ) operation.
+ GetRunCache mGetScriptCache; ///< Caches the GetNumberOfScriptRuns( characterIndex, numberOfCharacters ) operation.
+ GetRunCache mGetFontCache; ///< Caches the GetNumberOfFontRuns( characterIndex, numberOfCharacters ) operation.
+ GetRunCache mGetBidirectionalCache; ///< Caches the GetNumberOfBidirectionalInfoRuns( characterIndex, numberOfCharacters ) operation.
};
LogicalModelPtr LogicalModel::New()
return mImpl->mText.Count();
}
-void LogicalModel::GetText( CharacterIndex characterIndex,
- Character* text,
+void LogicalModel::GetText( Character* text,
+ CharacterIndex characterIndex,
Length numberOfCharacters ) const
{
Vector<Character>& modelText = mImpl->mText;
void LogicalModel::SetBidirectionalInfo( const BidirectionalParagraphInfoRun* const bidirectionalInfo,
Length numberOfRuns )
{
+ Vector<BidirectionalParagraphInfoRun>& modelBidirectionalParagraphInfo = mImpl->mBidirectionalParagraphInfo;
+
+ if( 0u == numberOfRuns )
+ {
+ modelBidirectionalParagraphInfo.Clear();
+ }
+ else
+ {
+ modelBidirectionalParagraphInfo.Resize( numberOfRuns );
+ memcpy( modelBidirectionalParagraphInfo.Begin(), bidirectionalInfo, numberOfRuns * sizeof( BidirectionalParagraphInfoRun ) );
+ }
+
+ mImpl->mGetBidirectionalCache.characterIndex = 0u;
+ mImpl->mGetBidirectionalCache.numberOfCharacters = 0u;
+ mImpl->mGetBidirectionalCache.firstRun = 0u;
+ mImpl->mGetBidirectionalCache.numberOfRuns = 0u;
}
Length LogicalModel::GetNumberOfBidirectionalInfoRuns( CharacterIndex characterIndex,
Length numberOfCharacters ) const
{
- return 0u;
+ GetRunCache& bidiCache = mImpl->mGetBidirectionalCache;
+
+ // Set the character index and the number of characters into the cache.
+ bidiCache.characterIndex = characterIndex;
+ bidiCache.numberOfCharacters = numberOfCharacters;
+
+ if( ( 0u == characterIndex ) &&
+ ( mImpl->mText.Count() == numberOfCharacters ) )
+ {
+ bidiCache.firstRun = 0u;
+ bidiCache.numberOfRuns = mImpl->mBidirectionalParagraphInfo.Count();
+ return bidiCache.numberOfRuns;
+ }
+
+ // Initialize the number of bidi paragraphs and the index to the first paragraph.
+ bidiCache.firstRun = 0u;
+ bidiCache.numberOfRuns = 0;
+ bool firstParagraphFound = false;
+
+ const Vector<BidirectionalParagraphInfoRun>& modelBidirectionalParagraphInfo = mImpl->mBidirectionalParagraphInfo;
+
+ // Traverse the bidirectional paragraph info and count those bidi paragraphs within the range of characters.
+ for( Vector<BidirectionalParagraphInfoRun>::ConstIterator it = modelBidirectionalParagraphInfo.Begin(),
+ endIt = modelBidirectionalParagraphInfo.End();
+ it != endIt;
+ ++it )
+ {
+ const BidirectionalParagraphInfoRun& bidi = *it;
+
+ if( ( bidi.characterRun.characterIndex + bidi.characterRun.numberOfCharacters > characterIndex ) &&
+ ( characterIndex + numberOfCharacters > bidi.characterRun.characterIndex ) )
+ {
+ firstParagraphFound = true;
+ ++bidiCache.numberOfRuns;
+ }
+
+ if( !firstParagraphFound )
+ {
+ ++bidiCache.firstRun;
+ }
+ }
+
+ return bidiCache.numberOfRuns;
+}
+
+void LogicalModel::GetBidirectionalInfo( BidirectionalParagraphInfoRun* bidirectionalInfo,
+ CharacterIndex characterIndex,
+ Length numberOfCharacters ) const
+{
+ const Vector<BidirectionalParagraphInfoRun>& modelBidirectionalParagraphInfo = mImpl->mBidirectionalParagraphInfo;
+ GetRunCache& bidiCache = mImpl->mGetBidirectionalCache;
+
+ if( ( characterIndex != bidiCache.characterIndex ) ||
+ ( numberOfCharacters != bidiCache.numberOfCharacters ) )
+ {
+ GetNumberOfBidirectionalInfoRuns( characterIndex,
+ numberOfCharacters );
+ }
+
+ memcpy( bidirectionalInfo, modelBidirectionalParagraphInfo.Begin() + bidiCache.firstRun, bidiCache.numberOfRuns * sizeof( BidirectionalParagraphInfoRun ) );
}
void LogicalModel::GetCharacterDirections( CharacterDirection* directions,
void LogicalModel::SetVisualToLogicalMap( const BidirectionalLineInfoRun* const bidirectionalInfo,
Length numberOfRuns )
{
+ Vector<CharacterIndex>& modelVisualToLogicalMap = mImpl->mVisualToLogicalMap;
+ Vector<CharacterIndex>& modelLogicalToVisualMap = mImpl->mLogicalToVisualMap;
+
+ if( 0u == numberOfRuns )
+ {
+ modelVisualToLogicalMap.Clear();
+ modelLogicalToVisualMap.Clear();
+ }
+ else
+ {
+ const Length numberOfCharacters = mImpl->mText.Count();
+ modelVisualToLogicalMap.Resize( numberOfCharacters );
+ modelLogicalToVisualMap.Resize( numberOfCharacters );
+
+ CharacterIndex* modelVisualToLogicalMapBuffer = modelVisualToLogicalMap.Begin();
+ CharacterIndex* modelLogicalToVisualMapBuffer = modelLogicalToVisualMap.Begin();
+
+ CharacterIndex lastIndex = 0u;
+ for( unsigned int bidiIndex = 0u; bidiIndex < numberOfRuns; ++bidiIndex )
+ {
+ const BidirectionalLineInfoRun& bidiLineInfo = *( bidirectionalInfo + bidiIndex );
+
+ if( lastIndex < bidiLineInfo.characterRun.characterIndex )
+ {
+ // Fill with the identity.
+ for( ; lastIndex < bidiLineInfo.characterRun.characterIndex; ++lastIndex )
+ {
+ *( modelVisualToLogicalMapBuffer + lastIndex ) = lastIndex;
+ }
+ }
+
+ // Fill the conversion table of the run.
+ for( CharacterIndex index = 0u;
+ index < bidiLineInfo.characterRun.numberOfCharacters;
+ ++index, ++lastIndex )
+ {
+ *( modelVisualToLogicalMapBuffer + lastIndex ) = bidiLineInfo.characterRun.characterIndex + *( bidiLineInfo.visualToLogicalMap + index );
+ }
+ }
+
+ // Complete with the identity if there are some left to right characters after the last right to left.
+ for( ; lastIndex < numberOfCharacters; ++lastIndex )
+ {
+ *( modelVisualToLogicalMapBuffer + lastIndex ) = lastIndex;
+ }
+
+ // Sets the logical to visual conversion map.
+ for( CharacterIndex index = 0u; index < numberOfCharacters; ++index )
+ {
+ *( modelLogicalToVisualMapBuffer + *( modelVisualToLogicalMapBuffer + index ) ) = index;
+ }
+ }
}
CharacterIndex LogicalModel::GetVisualCharacterIndex( CharacterIndex logicalCharacterIndex ) const
{
- return 0u;
+ if( 0u == mImpl->mLogicalToVisualMap.Count() )
+ {
+ // If there is no logical to visual info is because the whole text is left to right.
+ // Return the identity.
+ return logicalCharacterIndex;
+ }
+
+ return *( mImpl->mLogicalToVisualMap.Begin() + logicalCharacterIndex );
}
CharacterIndex LogicalModel::GetLogicalCharacterIndex( CharacterIndex visualCharacterIndex ) const
{
- return 0u;
+ if( 0u == mImpl->mVisualToLogicalMap.Count() )
+ {
+ // If there is no visual to logical info is because the whole text is left to right.
+ // Return the identity.
+ return visualCharacterIndex;
+ }
+
+ return *( mImpl->mVisualToLogicalMap.Begin() + visualCharacterIndex );
}
void LogicalModel::GetLogicalToVisualMap( CharacterIndex* logicalToVisualMap,
CharacterIndex characterIndex,
Length numberOfCharacters ) const
{
+ memcpy( logicalToVisualMap, mImpl->mLogicalToVisualMap.Begin() + characterIndex, numberOfCharacters * sizeof( CharacterIndex ) );
}
void LogicalModel::GetVisualToLogicalMap( CharacterIndex* visualToLogicalMap,
CharacterIndex characterIndex,
Length numberOfCharacters ) const
{
+ memcpy( visualToLogicalMap, mImpl->mVisualToLogicalMap.Begin() + characterIndex, numberOfCharacters * sizeof( CharacterIndex ) );
}
LogicalModel::~LogicalModel()
projects / platform / core / uifw / dali-toolkit.git / blobdiff