extraWidth( 0.f ),
wsLengthEndOfLine( 0.f ),
ascender( 0.f ),
- descender( MAX_FLOAT )
+ descender( MAX_FLOAT ),
+ lineSpacing( 0.f )
{}
~LineLayout()
float wsLengthEndOfLine; ///< The length of the white spaces at the end of the line.
float ascender; ///< The maximum ascender of all fonts in the line.
float descender; ///< The minimum descender of all fonts in the line.
+ float lineSpacing; ///< The line spacing
};
struct Engine::Impl
Impl()
: mLayout( Layout::Engine::SINGLE_LINE_BOX ),
mCursorWidth( CURSOR_WIDTH ),
- mDefaultLineSpacing( LINE_SPACING )
+ mDefaultLineSpacing( LINE_SPACING ),
+ mPreviousCharacterExtraWidth( 0.0f )
{
}
{
lineLayout.descender = fontMetrics.descender;
}
+
+ // set the line spacing
+ lineLayout.lineSpacing = mDefaultLineSpacing;
}
/**
// Get the line break info for the current character.
const LineBreakInfo lineBreakInfo = hasCharacters ? *( parameters.lineBreakInfoBuffer + characterLastIndex ) : TextAbstraction::LINE_NO_BREAK;
- // Get the word break info for the current character.
- const WordBreakInfo wordBreakInfo = *( parameters.wordBreakInfoBuffer + characterLastIndex );
-
// Increase the number of characters.
tmpLineLayout.numberOfCharacters += charactersPerGlyph;
const float extraWidth = glyphMetrics.xBearing + glyphMetrics.width - glyphMetrics.advance;
tmpExtraWidth = ( 0.f < extraWidth ) ? extraWidth : 0.f;
+ tmpExtraWidth = std::max( mPreviousCharacterExtraWidth - glyphMetrics.advance, tmpExtraWidth );
}
}
else
const float extraWidth = glyphMetrics.xBearing + glyphMetrics.width - glyphMetrics.advance;
tmpExtraWidth = ( 0.f < extraWidth ) ? extraWidth : 0.f;
+ tmpExtraWidth = std::max( mPreviousCharacterExtraWidth - glyphMetrics.advance, tmpExtraWidth );
}
else // LTR
{
const float extraWidth = glyphMetrics.xBearing + glyphMetrics.width - glyphMetrics.advance;
tmpExtraWidth = ( 0.f < extraWidth ) ? extraWidth : 0.f;
+ tmpExtraWidth = std::max( mPreviousCharacterExtraWidth - glyphMetrics.advance, tmpExtraWidth );
}
}
}
tmpLineLayout.wsLengthEndOfLine = 0.f;
}
+ // If calculation is end but wsLengthEndOfLine is exist, it means end of text is space.
+ // Merge remained length.
+ if ( !parameters.ignoreSpaceAfterText && glyphIndex == lastGlyphOfParagraphPlusOne-1 && tmpLineLayout.wsLengthEndOfLine > 0 )
+ {
+ tmpLineLayout.length += tmpLineLayout.wsLengthEndOfLine;
+ tmpLineLayout.wsLengthEndOfLine = 0u;
+ }
+
+ // Save the current extra width to compare with the next one
+ mPreviousCharacterExtraWidth = tmpExtraWidth;
+
// Check if the accumulated length fits in the width of the box.
- if( ( completelyFill || isMultiline ) && !isWhiteSpace &&
+ if( ( completelyFill || isMultiline ) && !(parameters.ignoreSpaceAfterText && isWhiteSpace) &&
( tmpExtraBearing + lineLayout.length + lineLayout.wsLengthEndOfLine + tmpLineLayout.length + tmpExtraWidth > parameters.boundingBox.width ) )
{
// Current word does not fit in the box's width.
}
if( isMultiline &&
- ( TextAbstraction::WORD_BREAK == wordBreakInfo ) )
+ ( TextAbstraction::LINE_ALLOW_BREAK == lineBreakInfo ) )
{
oneWordLaidOut = isWordLaidOut;
DALI_LOG_INFO( gLogFilter, Debug::Verbose, " One word laid-out\n" );
// Get the last line and layout it again with the 'completelyFill' flag to true.
lineRun = linesBuffer + ( numberOfLines - 1u );
- penY -= layout.ascender - lineRun->descender;
+ penY -= layout.ascender - lineRun->descender + lineRun->lineSpacing;
ellipsisLayout.glyphIndex = lineRun->glyphRun.glyphIndex;
}
layoutSize.width = layoutParameters.boundingBox.width;
if( layoutSize.height < Math::MACHINE_EPSILON_1000 )
{
- layoutSize.height += ( lineRun->ascender + -lineRun->descender );
+ layoutSize.height += ( lineRun->ascender + -lineRun->descender ) + lineRun->lineSpacing;
}
SetGlyphPositions( layoutParameters.glyphsBuffer + lineRun->glyphRun.glyphIndex,
lineRun.glyphRun.numberOfGlyphs = layout.numberOfGlyphs;
lineRun.characterRun.characterIndex = layout.characterIndex;
lineRun.characterRun.numberOfCharacters = layout.numberOfCharacters;
+ lineRun.lineSpacing = mDefaultLineSpacing;
+
if( isLastLine && !layoutParameters.isLastNewParagraph )
{
const float width = layout.extraBearing + layout.length + layout.extraWidth + layout.wsLengthEndOfLine;
layoutSize.width = lineRun.width;
}
- layoutSize.height += ( lineRun.ascender + -lineRun.descender );
+ layoutSize.height += ( lineRun.ascender + -lineRun.descender ) + lineRun.lineSpacing;
}
/**
lineRun.alignmentOffset = 0.f;
lineRun.direction = !RTL;
lineRun.ellipsis = false;
+ lineRun.lineSpacing = mDefaultLineSpacing;
- layoutSize.height += ( lineRun.ascender + -lineRun.descender );
+ layoutSize.height += ( lineRun.ascender + -lineRun.descender ) + lineRun.lineSpacing;
}
/**
layoutSize.width = line.width;
}
- layoutSize.height += ( line.ascender + -line.descender );
+ layoutSize.height += ( line.ascender + -line.descender ) + line.lineSpacing;
}
}
glyphPositionsBuffer + index - layoutParameters.startGlyphIndex );
// Updates the vertical pen's position.
- penY += -layout.descender;
+ penY += -layout.descender + layout.lineSpacing + mDefaultLineSpacing;
// Increase the glyph index.
index = nextIndex;
Length numberOfCharacters,
Text::HorizontalAlignment::Type horizontalAlignment,
Vector<LineRun>& lines,
- float& alignmentOffset )
+ float& alignmentOffset,
+ Dali::LayoutDirection::Type layoutDirection,
+ bool matchSystemLanguageDirection )
{
const CharacterIndex lastCharacterPlusOne = startIndex + numberOfCharacters;
// the box width, line length, and the paragraph's direction.
CalculateHorizontalAlignment( size.width,
horizontalAlignment,
- line );
+ line,
+ layoutDirection,
+ matchSystemLanguageDirection );
// Updates the alignment offset.
alignmentOffset = std::min( alignmentOffset, line.alignmentOffset );
void CalculateHorizontalAlignment( float boxWidth,
HorizontalAlignment::Type horizontalAlignment,
- LineRun& line )
+ LineRun& line,
+ Dali::LayoutDirection::Type layoutDirection,
+ bool matchSystemLanguageDirection )
{
line.alignmentOffset = 0.f;
- const bool isRTL = RTL == line.direction;
+ bool isRTL = RTL == line.direction;
float lineLength = line.width;
-
HorizontalAlignment::Type alignment = horizontalAlignment;
+
+ // match align for system language direction
+ if( matchSystemLanguageDirection )
+ {
+ isRTL = layoutDirection == LayoutDirection::RIGHT_TO_LEFT;
+ }
+
+ // Swap the alignment type if the line is right to left.
if( isRTL )
{
- // Swap the alignment type if the line is right to left.
switch( alignment )
{
case HorizontalAlignment::BEGIN:
break;
}
}
+
}
// Calculate the horizontal line offset.
line.alignmentOffset = 0.f;
line.direction = !RTL;
line.ellipsis = false;
+ line.lineSpacing = mDefaultLineSpacing;
}
Type mLayout;
float mCursorWidth;
float mDefaultLineSpacing;
+ float mPreviousCharacterExtraWidth;
IntrusivePtr<Metrics> mMetrics;
};
Length numberOfCharacters,
Text::HorizontalAlignment::Type horizontalAlignment,
Vector<LineRun>& lines,
- float& alignmentOffset )
+ float& alignmentOffset,
+ Dali::LayoutDirection::Type layoutDirection,
+ bool matchSystemLanguageDirection )
{
mImpl->Align( size,
startIndex,
numberOfCharacters,
horizontalAlignment,
lines,
- alignmentOffset );
+ alignmentOffset,
+ layoutDirection,
+ matchSystemLanguageDirection );
}
void Engine::SetDefaultLineSpacing( float lineSpacing )
projects / platform / core / uifw / dali-toolkit.git / blobdiff