{
const float MAX_FLOAT = std::numeric_limits<float>::max();
-const std::string EMPTY_STRING;
enum ModifyType
{
std::string text;
};
+const std::string EMPTY_STRING("");
+
} // namespace
namespace Dali
namespace Text
{
+struct Controller::FontDefaults
+{
+ FontDefaults()
+ : mDefaultPointSize(0.0f),
+ mFontId(0u)
+ {
+ }
+
+ FontId GetFontId( TextAbstraction::FontClient& fontClient )
+ {
+ if( !mFontId )
+ {
+ Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64;
+ mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize );
+ }
+
+ return mFontId;
+ }
+
+ std::string mDefaultFontFamily;
+ std::string mDefaultFontStyle;
+ float mDefaultPointSize;
+ FontId mFontId;
+};
+
struct Controller::TextInput
{
// Used to queue input events until DoRelayout()
Param p3;
};
+ struct CursorInfo
+ {
+ CursorInfo()
+ : primaryPosition(),
+ secondaryPosition(),
+ lineHeight( 0.f ),
+ primaryCursorHeight( 0.f ),
+ secondaryCursorHeight( 0.f ),
+ isSecondaryCursor( false )
+ {}
+
+ ~CursorInfo()
+ {}
+
+ Vector2 primaryPosition; ///< The primary cursor's position.
+ Vector2 secondaryPosition; ///< The secondary cursor's position.
+ float lineHeight; ///< The height of the line where the cursor is placed.
+ float primaryCursorHeight; ///< The primary cursor's height.
+ float secondaryCursorHeight; ///< The secondary cursor's height.
+ bool isSecondaryCursor; ///< Whether the secondary cursor is valid.
+ };
+
+ /**
+ * @brief Some characters can be shaped in more than one glyph.
+ * This struct is used to retrieve metrics from these group of glyphs.
+ */
+ struct GlyphMetrics
+ {
+ GlyphMetrics()
+ : fontHeight( 0.f ),
+ advance( 0.f ),
+ ascender( 0.f ),
+ xBearing( 0.f )
+ {}
+
+ ~GlyphMetrics()
+ {}
+
+ float fontHeight; ///< The font's height of that glyphs.
+ float advance; ///< The sum of all the advances of all the glyphs.
+ float ascender; ///< The font's ascender.
+ float xBearing; ///< The x bearing of the first glyph.
+ };
+
enum State
{
INACTIVE,
TextInput( LogicalModelPtr logicalModel,
VisualModelPtr visualModel,
- DecoratorPtr decorator )
+ DecoratorPtr decorator,
+ FontDefaults* fontDefaults,
+ TextAbstraction::FontClient& fontClient )
: mLogicalModel( logicalModel ),
mVisualModel( visualModel ),
mDecorator( decorator ),
+ mFontDefaults( fontDefaults ),
+ mFontClient( fontClient ),
mState( INACTIVE ),
mPrimaryCursorPosition( 0u ),
mSecondaryCursorPosition( 0u ),
mCursorBlinkEnabled( true ),
mGrabHandleEnabled( true ),
mGrabHandlePopupEnabled( true ),
- mSelectionEnabled( false ),
+ mSelectionEnabled( true ),
mHorizontalScrollingEnabled( true ),
mVerticalScrollingEnabled( false ),
mUpdateCursorPosition( false )
- {
- }
+ {}
/**
* @brief Helper to move the cursor, grab handle etc.
if( Dali::DALI_KEY_CURSOR_LEFT == keyCode )
{
- // TODO
+ if( mPrimaryCursorPosition > 0u )
+ {
+ mPrimaryCursorPosition = CalculateNewCursorIndex( mPrimaryCursorPosition - 1u );
+ }
}
else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
{
- // TODO
+ if( mLogicalModel->GetNumberOfCharacters() > mPrimaryCursorPosition )
+ {
+ mPrimaryCursorPosition = CalculateNewCursorIndex( mPrimaryCursorPosition );
+ }
}
else if( Dali::DALI_KEY_CURSOR_UP == keyCode )
{
{
// TODO
}
+
+ UpdateCursorPosition();
}
void HandleCursorKey( int keyCode )
float xPosition = event.p2.mFloat - alignmentOffset.x;
float yPosition = event.p3.mFloat - alignmentOffset.y;
- float height(0.0f);
- GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height );
- mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height );
- mUpdateCursorPosition = false;
- mDecoratorUpdated = true;
+ mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
+ yPosition );
+
+ UpdateCursorPosition();
}
else if( mSelectionEnabled &&
2u == tapCount )
{
ChangeState( SELECTING );
+
+ RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat );
}
- }
+ }
void OnPanEvent( const Event& event,
const Vector2& controlSize,
if( GRAB_HANDLE_PRESSED == state )
{
- float xPosition = event.p2.mFloat;
- float yPosition = event.p3.mFloat;
- float height(0.0f);
+ float xPosition = event.p2.mFloat + mScrollPosition.x;
+ float yPosition = event.p3.mFloat + mScrollPosition.y;
- GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height );
+ mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
+ yPosition );
+
+ UpdateCursorPosition();
- mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height );
//mDecorator->HidePopup();
ChangeState ( EDITING );
- mDecoratorUpdated = true;
}
else if ( mGrabHandlePopupEnabled &&
GRAB_HANDLE_RELEASED == state )
}
}
+ void RepositionSelectionHandles( float visualX, float visualY )
+ {
+ // TODO - Find which word was selected
+
+ const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
+ const Vector<Vector2>::SizeType glyphCount = glyphs.Count();
+
+ const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
+ const Vector<Vector2>::SizeType positionCount = positions.Count();
+
+ // Guard against glyphs which did not fit inside the layout
+ const Vector<Vector2>::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount;
+
+ if( count )
+ {
+ float primaryX = positions[0].x;
+ float secondaryX = positions[count-1].x + glyphs[count-1].width;
+
+ // TODO - multi-line selection
+ const Vector<LineRun>& lines = mVisualModel->mLines;
+ float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f;
+
+ mDecorator->SetPosition( PRIMARY_SELECTION_HANDLE, primaryX, 0.0f, height );
+ mDecorator->SetPosition( SECONDARY_SELECTION_HANDLE, secondaryX, 0.0f, height );
+
+ mDecorator->ClearHighlights();
+ mDecorator->AddHighlight( primaryX, 0.0f, secondaryX, height );
+ }
+ }
+
void ChangeState( State newState )
{
if( mState != newState )
}
}
- LineIndex GetClosestLine( float y )
+ LineIndex GetClosestLine( float y ) const
{
- LineIndex lineIndex( 0u );
+ float totalHeight = 0.f;
+ LineIndex lineIndex = 0u;
const Vector<LineRun>& lines = mVisualModel->mLines;
- for( float totalHeight = 0; lineIndex < lines.Count(); ++lineIndex )
+ for( LineIndex endLine = lines.Count();
+ lineIndex < endLine;
+ ++lineIndex )
{
- totalHeight += lines[lineIndex].lineSize.height;
+ const LineRun& lineRun = lines[lineIndex];
+ totalHeight += lineRun.ascender + -lineRun.descender;
if( y < totalHeight )
{
- break;
+ return lineIndex;
}
}
- return lineIndex;
+ return lineIndex-1;
}
- void GetClosestCursorPosition( CharacterIndex& logical, float& visualX, float& visualY, float& height )
+ /**
+ * @brief Retrieves the cursor's logical position for a given touch point x,y
+ *
+ * @param[in] visualX The touch point x.
+ * @param[in] visualY The touch point y.
+ *
+ * @return The logical cursor position (in characters). 0 is just before the first character, a value equal to the number of characters is just after the last character.
+ */
+ CharacterIndex GetClosestCursorIndex( float visualX,
+ float visualY ) const
{
- Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
- Length numberOfLines = mVisualModel->mLines.Count();
+ CharacterIndex logicalIndex = 0u;
+
+ const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
+ const Length numberOfLines = mVisualModel->mLines.Count();
if( 0 == numberOfGlyphs ||
0 == numberOfLines )
{
- return;
+ return logicalIndex;
}
// Transform to visual model coords
visualY -= mScrollPosition.y;
// Find which line is closest
- LineIndex lineIndex( GetClosestLine( visualY ) );
-
- const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
- const GlyphInfo* const glyphsBuffer = glyphs.Begin();
+ const LineIndex lineIndex = GetClosestLine( visualY );
+ const LineRun& line = mVisualModel->mLines[lineIndex];
+ // Get the positions of the glyphs.
const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
const Vector2* const positionsBuffer = positions.Begin();
- unsigned int closestGlyph = 0;
- bool leftOfGlyph( false ); // which side of the glyph?
- float closestDistance = MAX_FLOAT;
+ // Get the visual to logical conversion tables.
+ const CharacterIndex* const visualToLogicalBuffer = ( 0u != mLogicalModel->mVisualToLogicalMap.Count() ) ? mLogicalModel->mVisualToLogicalMap.Begin() : NULL;
+ const CharacterIndex* const visualToLogicalCursorBuffer = mLogicalModel->mVisualToLogicalCursorMap.Begin();
- const LineRun& line = mVisualModel->mLines[lineIndex];
- GlyphIndex startGlyph = line.glyphIndex;
- GlyphIndex endGlyph = line.glyphIndex + line.numberOfGlyphs;
- DALI_ASSERT_DEBUG( endGlyph <= glyphs.Count() && "Invalid line info" );
+ // Get the character to glyph conversion table.
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+
+ // Get the glyphs per character table.
+ const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+
+ // If the vector is void, there is no right to left characters.
+ const bool hasRightToLeftCharacters = NULL != visualToLogicalBuffer;
+
+ const CharacterIndex startCharacter = line.characterRun.characterIndex;
+ const CharacterIndex endCharacter = line.characterRun.characterIndex + line.characterRun.numberOfCharacters;
+ DALI_ASSERT_DEBUG( endCharacter <= mLogicalModel->mText.Count() && "Invalid line info" );
+
+ // Whether there is a hit on a glyph.
+ bool matched = false;
- for( GlyphIndex i = startGlyph; i < endGlyph; ++i )
+ // Traverses glyphs in visual order. To do that use the visual to logical conversion table.
+ CharacterIndex visualIndex = startCharacter;
+ for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex )
{
- const GlyphInfo& glyphInfo = *( glyphsBuffer + i );
- const Vector2& position = *( positionsBuffer + i );
- float glyphX = position.x + glyphInfo.width*0.5f;
- float glyphY = position.y + glyphInfo.height*0.5f;
+ // The character in logical order.
+ const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex;
- float distanceToGlyph = fabsf( glyphX - visualX ) + fabsf( glyphY - visualY );
+ // The first glyph for that character in logical order.
+ const GlyphIndex glyphLogicalOrderIndex = *( charactersToGlyphBuffer + characterLogicalOrderIndex );
- if( distanceToGlyph < closestDistance )
+ // The number of glyphs for that character
+ const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex );
+
+ // Get the metrics for the group of glyphs.
+ GlyphMetrics glyphMetrics;
+ GetGlyphsMetrics( glyphLogicalOrderIndex,
+ numberOfGlyphs,
+ glyphMetrics );
+
+ const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
+
+ const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+
+ if( visualX < glyphX )
{
- closestDistance = distanceToGlyph;
- closestGlyph = i;
- leftOfGlyph = ( visualX < glyphX );
+ matched = true;
+ break;
}
}
- // Calculate the logical position
- logical = mVisualModel->GetCharacterIndex( closestGlyph );
-
- // Returns the visual position of the glyph
- visualX = positions[closestGlyph].x;
- if( !leftOfGlyph )
- {
- visualX += glyphs[closestGlyph].width;
+ // Return the logical position of the cursor in characters.
- //if( LTR ) TODO
- ++logical;
- }
- else// if ( RTL ) TODO
+ if( !matched )
{
- //++logical;
+ visualIndex = endCharacter;
}
- visualY = 0.0f;
- height = line.lineSize.height;
+ return hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
}
- void UpdateCursorPosition()
+ /**
+ * @brief Calculates the cursor's position for a given character index in the logical order.
+ *
+ * It retrieves as well the line's height and the cursor's height and
+ * if there is a valid alternative cursor, its position and height.
+ *
+ * @param[in] logical The logical cursor position (in characters). 0 is just before the first character, a value equal to the number of characters is just after the last character.
+ * @param[out] cursorInfo The line's height, the cursor's height, the cursor's position and whether there is an alternative cursor.
+ */
+ void GetCursorPosition( CharacterIndex logical,
+ CursorInfo& cursorInfo ) const
{
- if( 0 == mVisualModel->mGlyphs.Count() )
+ // TODO: Check for multiline with \n, etc...
+
+ // Check if the logical position is the first or the last one of the text.
+ const bool isFirstPosition = 0u == logical;
+ const bool isLastPosition = mLogicalModel->GetNumberOfCharacters() == logical;
+
+ if( isFirstPosition && isLastPosition )
{
+ // There is zero characters. Get the default font.
+
+ FontId defaultFontId = 0u;
+ if( NULL == mFontDefaults )
+ {
+ defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
+ EMPTY_STRING );
+ }
+ else
+ {
+ defaultFontId = mFontDefaults->GetFontId( mFontClient );
+ }
+
+ Text::FontMetrics fontMetrics;
+ mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
+
+ cursorInfo.lineHeight = fontMetrics.ascender - fontMetrics.descender;
+ cursorInfo.primaryCursorHeight = cursorInfo.lineHeight;
+
+ cursorInfo.primaryPosition.x = 0.f;
+ cursorInfo.primaryPosition.y = 0.f;
+
+ // Nothing else to do.
return;
}
- // FIXME GetGlyphIndex() is behaving strangely
-#if 0
- GlyphIndex cursorGlyph = mVisualModel->GetGlyphIndex( mPrimaryCursorPosition );
-#else
- GlyphIndex cursorGlyph( 0u );
- for( cursorGlyph = 0; cursorGlyph < mVisualModel->mGlyphs.Count(); ++cursorGlyph )
+ // Get the previous logical index.
+ const CharacterIndex previousLogical = isFirstPosition ? 0u : logical - 1u;
+
+ // Decrease the logical index if it's the last one.
+ if( isLastPosition )
{
- if( mPrimaryCursorPosition == mVisualModel->GetCharacterIndex( cursorGlyph ) )
- {
- break;
- }
+ --logical;
}
-#endif
- float visualX( 0.0f );
- float visualY( 0.0f );
- LineIndex lineIndex( 0u );
- const Vector<LineRun>& lineRuns = mVisualModel->mLines;
+ // Get the direction of the character and the previous one.
+ const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
- if( cursorGlyph > 0 )
+ CharacterDirection isCurrentRightToLeft = false;
+ CharacterDirection isPreviousRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
{
- --cursorGlyph;
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + logical );
+ isPreviousRightToLeft = *( modelCharacterDirectionsBuffer + previousLogical );
+ }
+
+ // Get the line where the character is laid-out.
+ const LineRun* modelLines = mVisualModel->mLines.Begin();
+
+ const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( logical );
+ const LineRun& line = *( modelLines + lineIndex );
+
+ // Get the paragraph's direction.
+ const CharacterDirection isRightToLeftParagraph = line.direction;
+
+ // Check whether there is an alternative position:
+
+ cursorInfo.isSecondaryCursor = ( isCurrentRightToLeft != isPreviousRightToLeft ) ||
+ ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
+
+ // Set the line height.
+ cursorInfo.lineHeight = line.ascender + -line.descender;
+
+ // Convert the cursor position into the glyph position.
+ CharacterIndex characterIndex = logical;
+ if( cursorInfo.isSecondaryCursor &&
+ ( isRightToLeftParagraph != isCurrentRightToLeft ) )
+ {
+ characterIndex = previousLogical;
+ }
+
+ const GlyphIndex currentGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
+ const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
+ const Length numberOfCharacters = *( mVisualModel->mCharactersPerGlyph.Begin() +currentGlyphIndex );
+
+ // Get the metrics for the group of glyphs.
+ GlyphMetrics glyphMetrics;
+ GetGlyphsMetrics( currentGlyphIndex,
+ numberOfGlyphs,
+ glyphMetrics );
+
+ float interGlyphAdvance = 0.f;
+ if( !isLastPosition &&
+ ( numberOfCharacters > 1u ) )
+ {
+ const CharacterIndex firstIndex = *( mVisualModel->mGlyphsToCharacters.Begin() + currentGlyphIndex );
+ interGlyphAdvance = static_cast<float>( characterIndex - firstIndex ) * glyphMetrics.advance / static_cast<float>( numberOfCharacters );
+ }
+
+ // Get the glyph position and x bearing.
+ const Vector2& currentPosition = *( mVisualModel->mGlyphPositions.Begin() + currentGlyphIndex );
- visualX = mVisualModel->mGlyphPositions[ cursorGlyph ].x;
- //if( LTR ) TODO
- visualX += mVisualModel->mGlyphs[ cursorGlyph ].width;
+ // Set the cursor's height.
+ cursorInfo.primaryCursorHeight = glyphMetrics.fontHeight;
- // Find the line height
- for( GlyphIndex lastGlyph = 0; lineIndex < lineRuns.Count(); ++lineIndex )
+ // Set the position.
+ cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + currentPosition.x + ( isCurrentRightToLeft ? glyphMetrics.advance : interGlyphAdvance );
+ cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
+
+ if( isLastPosition )
+ {
+ // The position of the cursor after the last character needs special
+ // care depending on its direction and the direction of the paragraph.
+
+ if( cursorInfo.isSecondaryCursor )
+ {
+ // Need to find the first character after the last character with the paragraph's direction.
+ // i.e l0 l1 l2 r0 r1 should find r0.
+
+ // TODO: check for more than one line!
+ characterIndex = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u;
+ characterIndex = mLogicalModel->GetLogicalCharacterIndex( characterIndex );
+
+ const GlyphIndex glyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
+ const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
+
+ const Vector2& position = *( mVisualModel->mGlyphPositions.Begin() + glyphIndex );
+
+ // Get the metrics for the group of glyphs.
+ GlyphMetrics glyphMetrics;
+ GetGlyphsMetrics( glyphIndex,
+ numberOfGlyphs,
+ glyphMetrics );
+
+ cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + position.x + ( isRightToLeftParagraph ? 0.f : glyphMetrics.advance );
+
+ cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
+ }
+ else
{
- lastGlyph = (lineRuns[lineIndex].glyphIndex + lineRuns[lineIndex].numberOfGlyphs);
- if( cursorGlyph < lastGlyph )
+ if( !isCurrentRightToLeft )
+ {
+ cursorInfo.primaryPosition.x += glyphMetrics.advance;
+ }
+ else
{
- break;
+ cursorInfo.primaryPosition.x -= glyphMetrics.advance;
}
}
}
- mDecorator->SetPosition( PRIMARY_CURSOR, visualX, visualY, lineRuns[lineIndex].lineSize.height );
- mDecoratorUpdated = true;
+ // Set the alternative cursor position.
+ if( cursorInfo.isSecondaryCursor )
+ {
+ // Convert the cursor position into the glyph position.
+ const CharacterIndex previousCharacterIndex = ( ( isRightToLeftParagraph != isCurrentRightToLeft ) ? logical : previousLogical );
+ const GlyphIndex previousGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + previousCharacterIndex );
+ const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + previousCharacterIndex );
+
+ // Get the glyph position.
+ const Vector2& previousPosition = *( mVisualModel->mGlyphPositions.Begin() + previousGlyphIndex );
+
+ // Get the metrics for the group of glyphs.
+ GlyphMetrics glyphMetrics;
+ GetGlyphsMetrics( previousGlyphIndex,
+ numberOfGlyphs,
+ glyphMetrics );
+
+ // Set the cursor position and height.
+ cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + previousPosition.x + ( ( ( isLastPosition && !isCurrentRightToLeft ) ||
+ ( !isLastPosition && isCurrentRightToLeft ) ) ? glyphMetrics.advance : 0.f );
+
+ cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
+
+ cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
+
+ // Update the primary cursor height as well.
+ cursorInfo.primaryCursorHeight *= 0.5f;
+ }
+ }
+
+ /**
+ * @brief Get some glyph's metrics of a group of glyphs formed as a result of shaping one character.
+ *
+ * @param[in] glyphIndex The index to the first glyph.
+ * @param[in] numberOfGlyphs The number of glyphs.
+ * @param[out] glyphMetrics Some glyph metrics (font height, advance, ascender and x bearing).
+ */
+ void GetGlyphsMetrics( GlyphIndex glyphIndex,
+ Length numberOfGlyphs,
+ GlyphMetrics& glyphMetrics ) const
+ {
+ const GlyphInfo* glyphsBuffer = mVisualModel->mGlyphs.Begin();
+
+ const GlyphInfo& firstGlyph = *( glyphsBuffer + glyphIndex );
+
+ Text::FontMetrics fontMetrics;
+ mFontClient.GetFontMetrics( firstGlyph.fontId, fontMetrics );
+
+ glyphMetrics.fontHeight = fontMetrics.height;
+ glyphMetrics.advance = firstGlyph.advance;
+ glyphMetrics.ascender = fontMetrics.ascender;
+ glyphMetrics.xBearing = firstGlyph.xBearing;
+
+ for( unsigned int i = 1u; i < numberOfGlyphs; ++i )
+ {
+ const GlyphInfo& glyphInfo = *( glyphsBuffer + glyphIndex + i );
+
+ glyphMetrics.advance += glyphInfo.advance;
+ }
+ }
+
+ /**
+ * @brief Calculates the new cursor index.
+ *
+ * It takes into account that in some scripts multiple characters can form a glyph and all of them
+ * need to be jumped with one key event.
+ *
+ * @param[in] index The initial new index.
+ *
+ * @return The new cursor index.
+ */
+ CharacterIndex CalculateNewCursorIndex( CharacterIndex index ) const
+ {
+ CharacterIndex cursorIndex = mPrimaryCursorPosition;
+
+ const Script script = mLogicalModel->GetScript( index );
+ const GlyphIndex* charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+
+ Length numberOfCharacters = 0u;
+ if( TextAbstraction::LATIN == script )
+ {
+ // Prevents to jump the whole Latin ligatures like fi, ff, ...
+ numberOfCharacters = 1u;
+ }
+ else
+ {
+ GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
+ numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
+
+ while( 0u == numberOfCharacters )
+ {
+ numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
+ ++glyphIndex;
+ }
+ }
+
+ if( index < mPrimaryCursorPosition )
+ {
+ cursorIndex -= numberOfCharacters;
+ }
+ else
+ {
+ cursorIndex += numberOfCharacters;
+ }
+
+ return cursorIndex;
}
- LogicalModelPtr mLogicalModel;
- VisualModelPtr mVisualModel;
- DecoratorPtr mDecorator;
+ void UpdateCursorPosition()
+ {
+ CursorInfo cursorInfo;
+
+ GetCursorPosition( mPrimaryCursorPosition,
+ cursorInfo );
+
+ mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorInfo.primaryPosition.x,
+ cursorInfo.primaryPosition.y,
+ cursorInfo.primaryCursorHeight,
+ cursorInfo.lineHeight );
+
+ if( cursorInfo.isSecondaryCursor )
+ {
+ mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
+ mDecorator->SetPosition( SECONDARY_CURSOR,
+ cursorInfo.secondaryPosition.x,
+ cursorInfo.secondaryPosition.y,
+ cursorInfo.secondaryCursorHeight,
+ cursorInfo.lineHeight );
+ }
+ else
+ {
+ mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ }
+
+ mUpdateCursorPosition = false;
+ mDecoratorUpdated = true;
+ }
- std::string mPlaceholderText;
+ LogicalModelPtr mLogicalModel;
+ VisualModelPtr mVisualModel;
+ DecoratorPtr mDecorator;
+ FontDefaults* mFontDefaults;
+ TextAbstraction::FontClient& mFontClient;
+ std::string mPlaceholderText;
/**
* This is used to delay handling events until after the model has been updated.
bool mUpdateCursorPosition : 1; ///< True if the visual position of the cursor must be recalculated
};
-struct Controller::FontDefaults
-{
- FontDefaults()
- : mDefaultPointSize(0.0f),
- mFontId(0u)
- {
- }
-
- FontId GetFontId( TextAbstraction::FontClient& fontClient )
- {
- if( !mFontId )
- {
- Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64;
- mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize );
- }
-
- return mFontId;
- }
-
- std::string mDefaultFontFamily;
- std::string mDefaultFontStyle;
- float mDefaultPointSize;
- FontId mFontId;
-};
-
struct Controller::Impl
{
Impl( ControlInterface& controlInterface )
mFontClient = TextAbstraction::FontClient::Get();
mView.SetVisualModel( mVisualModel );
+
+ // Set the text properties to default
+ mVisualModel->SetTextColor( Color::WHITE );
+ mVisualModel->SetShadowOffset( Vector2::ZERO );
+ mVisualModel->SetShadowColor( Vector4::ZERO );
+ mVisualModel->SetUnderlineEnabled( false );
}
~Impl()
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
RequestRelayout();
}
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
RequestRelayout();
}
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
RequestRelayout();
}
return 0.0f;
}
-void Controller::GetDefaultFonts( Vector<FontRun>& fonts, Length numberOfCharacters )
+void Controller::GetDefaultFonts( Vector<FontRun>& fonts, Length numberOfCharacters ) const
{
if( mImpl->mFontDefaults )
{
}
}
+const Vector4& Controller::GetTextColor() const
+{
+ return mImpl->mVisualModel->GetTextColor();
+}
+
+const Vector2& Controller::GetShadowOffset() const
+{
+ return mImpl->mVisualModel->GetShadowOffset();
+}
+
+const Vector4& Controller::GetShadowColor() const
+{
+ return mImpl->mVisualModel->GetShadowColor();
+}
+
+const Vector4& Controller::GetUnderlineColor() const
+{
+ return mImpl->mVisualModel->GetUnderlineColor();
+}
+
+bool Controller::IsUnderlineEnabled() const
+{
+ return mImpl->mVisualModel->IsUnderlineEnabled();
+}
+
+void Controller::SetTextColor( const Vector4& textColor )
+{
+ mImpl->mVisualModel->SetTextColor( textColor );
+}
+
+void Controller::SetShadowOffset( const Vector2& shadowOffset )
+{
+ mImpl->mVisualModel->SetShadowOffset( shadowOffset );
+}
+
+void Controller::SetShadowColor( const Vector4& shadowColor )
+{
+ mImpl->mVisualModel->SetShadowColor( shadowColor );
+}
+
+void Controller::SetUnderlineColor( const Vector4& color )
+{
+ mImpl->mVisualModel->SetUnderlineColor( color );
+}
+
+void Controller::SetUnderlineEnabled( bool enabled )
+{
+ mImpl->mVisualModel->SetUnderlineEnabled( enabled );
+}
+
void Controller::EnableTextInput( DecoratorPtr decorator )
{
if( !mImpl->mTextInput )
{
- mImpl->mTextInput = new TextInput( mImpl->mLogicalModel, mImpl->mVisualModel, decorator );
+ mImpl->mTextInput = new TextInput( mImpl->mLogicalModel,
+ mImpl->mVisualModel,
+ decorator,
+ mImpl->mFontDefaults,
+ mImpl->mFontClient );
}
}
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
// Convert text into UTF-32
Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
// Convert text into UTF-32
Vector<Character> utf32Characters;
mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
mImpl->mVisualModel->mGlyphPositions.Clear();
mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
// Delte at current cursor position
Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
glyphs,
glyphsToCharactersMap,
charactersPerGlyph );
+
+ // Create the 'number of glyphs' per character and the glyph to character conversion tables.
+ mImpl->mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
+ mImpl->mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters );
}
const Length numberOfGlyphs = glyphs.Count();
{
mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs );
}
-
- if( 0u != numberOfGlyphs )
- {
- // Create the glyph to character conversion table and the 'number of glyphs' per character.
- mImpl->mVisualModel->CreateCharacterToGlyphTable(numberOfCharacters );
- mImpl->mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
- }
}
bool Controller::DoRelayout( const Size& size,
Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
+ if( 0u == numberOfGlyphs )
+ {
+ // Nothing else to do if there is no glyphs.
+ return true;
+ }
+
Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
+ Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
mImpl->mLogicalModel->mText.Begin(),
lineBreakInfo.Begin(),
wordBreakInfo.Begin(),
+ ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
numberOfGlyphs,
glyphs.Begin(),
glyphsToCharactersMap.Begin(),
void Controller::CalculateTextAlignment( const Size& size )
{
- // TODO : Calculate the vertical offset.
-
// Get the direction of the first character.
const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
const Size& actualSize = mImpl->mVisualModel->GetActualSize();
// If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
- LayoutEngine::Alignment alignment = mImpl->mLayoutEngine.GetAlignment();
+ LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
if( firstParagraphDirection &&
- ( LayoutEngine::ALIGN_CENTER != alignment ) )
+ ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
{
- if( LayoutEngine::ALIGN_BEGIN == alignment )
+ if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
{
- alignment = LayoutEngine::ALIGN_END;
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
}
else
{
- alignment = LayoutEngine::ALIGN_BEGIN;
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
}
}
- switch( alignment )
+ switch( horizontalAlignment )
{
- case LayoutEngine::ALIGN_BEGIN:
+ case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
{
- mImpl->mAlignmentOffset = Vector2::ZERO;
+ mImpl->mAlignmentOffset.x = 0.f;
break;
}
- case LayoutEngine::ALIGN_CENTER:
+ case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
{
- mImpl->mAlignmentOffset.y = 0.f;
const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
break;
}
- case LayoutEngine::ALIGN_END:
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
{
- mImpl->mAlignmentOffset.y = 0.f;
mImpl->mAlignmentOffset.x = size.width - actualSize.width;
break;
}
}
+
+ const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
+ switch( verticalAlignment )
+ {
+ case LayoutEngine::VERTICAL_ALIGN_TOP:
+ {
+ mImpl->mAlignmentOffset.y = 0.f;
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_CENTER:
+ {
+ const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
+ mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ {
+ mImpl->mAlignmentOffset.y = size.height - actualSize.height;
+ break;
+ }
+ }
}
View& Controller::GetView()
projects / platform / core / uifw / dali-toolkit.git / blobdiff