memcpy( lines, mLines.Begin() + firstLine, numberOfLines * sizeof( LineRun ) );
}
+LineIndex VisualModel::GetLineOfGlyph( GlyphIndex glyphIndex )
+{
+ const CharacterIndex characterIndex = *( mGlyphsToCharacters.Begin() + glyphIndex );
+
+ return GetLineOfCharacter( characterIndex );
+}
+
+LineIndex VisualModel::GetLineOfCharacter( CharacterIndex characterIndex )
+{
+ // 1) Check first in the cached line.
+
+ const LineRun& lineRun = *( mLines.Begin() + mCachedLineIndex );
+
+ if( ( lineRun.characterRun.characterIndex <= characterIndex ) &&
+ ( characterIndex < lineRun.characterRun.characterIndex + lineRun.characterRun.numberOfCharacters ) )
+ {
+ return mCachedLineIndex;
+ }
+
+ // 2) Is not in the cached line. Check in the other lines.
+
+ LineIndex index = characterIndex < lineRun.characterRun.characterIndex ? 0u : mCachedLineIndex + 1u;
+
+ for( Vector<LineRun>::ConstIterator it = mLines.Begin() + index,
+ endIt = mLines.End();
+ it != endIt;
+ ++it, ++index )
+ {
+ const LineRun& lineRun = *it;
+
+ if( characterIndex < lineRun.characterRun.characterIndex + lineRun.characterRun.numberOfCharacters )
+ {
+ mCachedLineIndex = index;
+ break;
+ }
+ }
+
+ return index;
+}
+
void VisualModel::ReplaceLines( GlyphIndex glyphIndex,
Length numberOfGlyphsToRemove,
const LineRun* const lines,
return mUnderlineEnabled;
}
+void VisualModel::ClearCaches()
+{
+ mCachedLineIndex = 0u;
+}
+
VisualModel::~VisualModel()
{
}
VisualModel::VisualModel()
-: mUnderlineColorSet( false )
+: mGlyphs(),
+ mGlyphsToCharacters(),
+ mCharactersToGlyph(),
+ mCharactersPerGlyph(),
+ mGlyphsPerCharacter(),
+ mGlyphPositions(),
+ mLines(),
+ mTextColor(),
+ mShadowColor(),
+ mUnderlineColor(),
+ mShadowOffset(),
+ mNaturalSize(),
+ mActualSize(),
+ mCachedLineIndex( 0u ),
+ mUnderlineEnabled( false ),
+ mUnderlineColorSet( false )
{
}