#include <dali-toolkit/internal/text/bidirectional-support.h>
#include <dali-toolkit/internal/text/character-set-conversion.h>
#include <dali-toolkit/internal/text/color-segmentation.h>
-#include <dali-toolkit/internal/text/glyph-metrics-helper.h>
+#include <dali-toolkit/internal/text/cursor-helper-functions.h>
#include <dali-toolkit/internal/text/multi-language-support.h>
#include <dali-toolkit/internal/text/segmentation.h>
#include <dali-toolkit/internal/text/shaper.h>
}
else
{
- CharacterIndex lastIndex = 0u;
+ Length numberOfCharactersToUpdate = 0u;
if( mTextUpdateInfo.mFullRelayoutNeeded )
{
- lastIndex = mTextUpdateInfo.mPreviousNumberOfCharacters;
+ numberOfCharactersToUpdate = mTextUpdateInfo.mPreviousNumberOfCharacters;
}
else
{
- lastIndex = ( mTextUpdateInfo.mNumberOfCharactersToRemove > 0u ) ? mTextUpdateInfo.mNumberOfCharactersToRemove : 1u;
+ numberOfCharactersToUpdate = ( mTextUpdateInfo.mNumberOfCharactersToRemove > 0u ) ? mTextUpdateInfo.mNumberOfCharactersToRemove : 1u;
}
mLogicalModel->FindParagraphs( mTextUpdateInfo.mCharacterIndex,
- lastIndex,
+ numberOfCharactersToUpdate,
paragraphsToBeUpdated );
}
void Controller::Impl::ClearFullModelData( OperationsMask operations )
{
- if( GET_LINE_BREAKS & operations )
+ if( NO_OPERATION != ( GET_LINE_BREAKS & operations ) )
{
mLogicalModel->mLineBreakInfo.Clear();
mLogicalModel->mParagraphInfo.Clear();
}
- if( GET_WORD_BREAKS & operations )
+ if( NO_OPERATION != ( GET_WORD_BREAKS & operations ) )
{
mLogicalModel->mLineBreakInfo.Clear();
}
- if( GET_SCRIPTS & operations )
+ if( NO_OPERATION != ( GET_SCRIPTS & operations ) )
{
mLogicalModel->mScriptRuns.Clear();
}
- if( VALIDATE_FONTS & operations )
+ if( NO_OPERATION != ( VALIDATE_FONTS & operations ) )
{
mLogicalModel->mFontRuns.Clear();
}
if( 0u != mLogicalModel->mBidirectionalParagraphInfo.Count() )
{
- if( BIDI_INFO & operations )
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
{
mLogicalModel->mBidirectionalParagraphInfo.Clear();
mLogicalModel->mCharacterDirections.Clear();
}
- if( REORDER & operations )
+ if( NO_OPERATION != ( REORDER & operations ) )
{
// Free the allocated memory used to store the conversion table in the bidirectional line info run.
for( Vector<BidirectionalLineInfoRun>::Iterator it = mLogicalModel->mBidirectionalLineInfo.Begin(),
bidiLineInfo.visualToLogicalMap = NULL;
}
mLogicalModel->mBidirectionalLineInfo.Clear();
-
- mLogicalModel->mLogicalToVisualMap.Clear();
- mLogicalModel->mVisualToLogicalMap.Clear();
}
}
- if( SHAPE_TEXT & operations )
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
{
mVisualModel->mGlyphs.Clear();
mVisualModel->mGlyphsToCharacters.Clear();
mVisualModel->mGlyphPositions.Clear();
}
- if( LAYOUT & operations )
+ if( NO_OPERATION != ( LAYOUT & operations ) )
{
mVisualModel->mLines.Clear();
}
- if( COLOR & operations )
+ if( NO_OPERATION != ( COLOR & operations ) )
{
mVisualModel->mColorIndices.Clear();
}
{
const CharacterIndex endIndexPlusOne = endIndex + 1u;
- if( GET_LINE_BREAKS & operations )
+ if( NO_OPERATION != ( GET_LINE_BREAKS & operations ) )
{
// Clear the line break info.
LineBreakInfo* lineBreakInfoBuffer = mLogicalModel->mLineBreakInfo.Begin();
mLogicalModel->mParagraphInfo );
}
- if( GET_WORD_BREAKS & operations )
+ if( NO_OPERATION != ( GET_WORD_BREAKS & operations ) )
{
// Clear the word break info.
WordBreakInfo* wordBreakInfoBuffer = mLogicalModel->mWordBreakInfo.Begin();
wordBreakInfoBuffer + endIndexPlusOne );
}
- if( GET_SCRIPTS & operations )
+ if( NO_OPERATION != ( GET_SCRIPTS & operations ) )
{
// Clear the scripts.
ClearCharacterRuns( startIndex,
mLogicalModel->mScriptRuns );
}
- if( VALIDATE_FONTS & operations )
+ if( NO_OPERATION != ( VALIDATE_FONTS & operations ) )
{
// Clear the fonts.
ClearCharacterRuns( startIndex,
if( 0u != mLogicalModel->mBidirectionalParagraphInfo.Count() )
{
- if( BIDI_INFO & operations )
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
{
// Clear the bidirectional paragraph info.
ClearCharacterRuns( startIndex,
characterDirectionsBuffer + endIndexPlusOne );
}
- if( REORDER & operations )
+ if( NO_OPERATION != ( REORDER & operations ) )
{
uint32_t startRemoveIndex = mLogicalModel->mBidirectionalLineInfo.Count();
uint32_t endRemoveIndex = startRemoveIndex;
mLogicalModel->mBidirectionalLineInfo.Erase( bidirectionalLineInfoBuffer + startRemoveIndex,
bidirectionalLineInfoBuffer + endRemoveIndex );
-
- // Clear the logical to visual and the visual to logical conversion tables.
- CharacterIndex* logicalToVisualMapBuffer = mLogicalModel->mLogicalToVisualMap.Begin();
- mLogicalModel->mLogicalToVisualMap.Erase( logicalToVisualMapBuffer + startIndex,
- logicalToVisualMapBuffer + endIndexPlusOne );
-
- CharacterIndex* visualToLogicalMapBuffer = mLogicalModel->mVisualToLogicalMap.Begin();
- mLogicalModel->mVisualToLogicalMap.Erase( visualToLogicalMapBuffer + startIndex,
- visualToLogicalMapBuffer + endIndexPlusOne );
}
}
}
const GlyphIndex endGlyphIndexPlusOne = *( charactersToGlyphBuffer + endIndex ) + *( glyphsPerCharacterBuffer + endIndex );
const Length numberOfGlyphsRemoved = endGlyphIndexPlusOne - mTextUpdateInfo.mStartGlyphIndex;
- if( SHAPE_TEXT & operations )
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
{
// Update the character to glyph indices.
for( Vector<GlyphIndex>::Iterator it = charactersToGlyphBuffer + endIndexPlusOne,
positionsBuffer + endGlyphIndexPlusOne );
}
- if( LAYOUT & operations )
+ if( NO_OPERATION != ( LAYOUT & operations ) )
{
// Clear the lines.
uint32_t startRemoveIndex = mVisualModel->mLines.Count();
linesBuffer + endRemoveIndex );
}
- if( COLOR & operations )
+ if( NO_OPERATION != ( COLOR & operations ) )
{
if( 0u != mVisualModel->mColorIndices.Count() )
{
if( mTextUpdateInfo.mClearAll ||
( 0u != paragraphCharacters ) )
{
- ClearModelData( startIndex, startIndex + ( ( paragraphCharacters > 0u ) ? paragraphCharacters - 1u : 0u ), operationsRequired );
+ ClearModelData( startIndex, startIndex + ( ( paragraphCharacters > 0u ) ? paragraphCharacters - 1u : 0u ), operations );
}
mTextUpdateInfo.mClearAll = false;
Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
const Length requestedNumberOfCharacters = mTextUpdateInfo.mRequestedNumberOfCharacters;
- if( GET_LINE_BREAKS & operations )
+ if( NO_OPERATION != ( GET_LINE_BREAKS & operations ) )
{
// Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to
// calculate the bidirectional info for each 'paragraph'.
}
Vector<WordBreakInfo>& wordBreakInfo = mLogicalModel->mWordBreakInfo;
- if( GET_WORD_BREAKS & operations )
+ if( NO_OPERATION != ( GET_WORD_BREAKS & operations ) )
{
// Retrieves the word break info. The word break info is used to layout the text (where to wrap the text in lines).
wordBreakInfo.Resize( numberOfCharacters, TextAbstraction::WORD_NO_BREAK );
updated = true;
}
- const bool getScripts = GET_SCRIPTS & operations;
- const bool validateFonts = VALIDATE_FONTS & operations;
+ const bool getScripts = NO_OPERATION != ( GET_SCRIPTS & operations );
+ const bool validateFonts = NO_OPERATION != ( VALIDATE_FONTS & operations );
Vector<ScriptRun>& scripts = mLogicalModel->mScriptRuns;
Vector<FontRun>& validFonts = mLogicalModel->mFontRuns;
Vector<Character> mirroredUtf32Characters;
bool textMirrored = false;
const Length numberOfParagraphs = mLogicalModel->mParagraphInfo.Count();
- if( BIDI_INFO & operations )
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
{
Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mLogicalModel->mBidirectionalParagraphInfo;
bidirectionalInfo.Reserve( numberOfParagraphs );
newParagraphGlyphs.Reserve( numberOfParagraphs );
const Length currentNumberOfGlyphs = glyphs.Count();
- if( SHAPE_TEXT & operations )
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
{
const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
// Shapes the text.
const Length numberOfGlyphs = glyphs.Count() - currentNumberOfGlyphs;
- if( GET_GLYPH_METRICS & operations )
+ if( NO_OPERATION != ( GET_GLYPH_METRICS & operations ) )
{
GlyphInfo* glyphsBuffer = glyphs.Begin();
mMetrics->GetGlyphMetrics( glyphsBuffer + mTextUpdateInfo.mStartGlyphIndex, numberOfGlyphs );
updated = true;
}
- if( COLOR & operationsRequired )
+ if( NO_OPERATION != ( COLOR & operations ) )
{
// Set the color runs in glyphs.
SetColorSegmentationInfo( mLogicalModel->mColorRuns,
const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
- mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
+ mEventData->mPrimaryCursorPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
// When the cursor position is changing, delay cursor blinking
mEventData->mDecorator->DelayCursorBlink();
const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
- const CharacterIndex handleNewPosition = GetClosestCursorIndex( xPosition, yPosition );
+ const CharacterIndex handleNewPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
if( Event::GRAB_HANDLE_EVENT == event.type )
{
const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
- handlePosition = GetClosestCursorIndex( xPosition, yPosition );
+ handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
}
if( Event::GRAB_HANDLE_EVENT == event.type )
// Get the new handle position.
// The grab handle's position is in decorator coords. Need to transforms to text coords.
- const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
- position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+ const CharacterIndex handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
mEventData->mUpdateCursorPosition = mEventData->mPrimaryCursorPosition != handlePosition;
mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateCursorPosition;
// Get the new handle position.
// The selection handle's position is in decorator coords. Need to transforms to text coords.
- const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
- position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+ const CharacterIndex handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
if( leftSelectionHandleEvent )
{
void Controller::Impl::HideClipboard()
{
- if( mClipboard )
+ if( mClipboard && mClipboardHideEnabled )
{
mClipboard.HideClipboard();
}
}
+void Controller::Impl::SetClipboardHideEnable(bool enable)
+{
+ mClipboardHideEnabled = enable;
+}
+
bool Controller::Impl::CopyStringToClipboard( std::string& source )
{
//Send string to clipboard
// Find which word was selected
CharacterIndex selectionStart( 0 );
CharacterIndex selectionEnd( 0 );
- FindSelectionIndices( visualX, visualY, selectionStart, selectionEnd );
+ FindSelectionIndices( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ visualX,
+ visualY,
+ selectionStart,
+ selectionEnd );
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
if( selectionStart == selectionEnd )
}
}
-LineIndex Controller::Impl::GetClosestLine( float y ) const
-{
- float totalHeight = 0.f;
- LineIndex lineIndex = 0u;
-
- const Vector<LineRun>& lines = mVisualModel->mLines;
- for( LineIndex endLine = lines.Count();
- lineIndex < endLine;
- ++lineIndex )
- {
- const LineRun& lineRun = lines[lineIndex];
- totalHeight += lineRun.ascender + -lineRun.descender;
- if( y < totalHeight )
- {
- return lineIndex;
- }
- }
-
- if( lineIndex == 0 )
- {
- return 0;
- }
-
- return lineIndex-1;
-}
-
-void Controller::Impl::FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex )
-{
- CharacterIndex hitCharacter = GetClosestCursorIndex( visualX, visualY );
- DALI_ASSERT_DEBUG( hitCharacter <= mLogicalModel->mText.Count() && "GetClosestCursorIndex returned out of bounds index" );
-
- if( mLogicalModel->mText.Count() == 0 )
- {
- return; // if model empty
- }
-
- if( hitCharacter >= mLogicalModel->mText.Count() )
- {
- // Closest hit character is the last character.
- if( hitCharacter == mLogicalModel->mText.Count() )
- {
- hitCharacter--; //Hit character index set to last character in logical model
- }
- else
- {
- // hitCharacter is out of bounds
- return;
- }
- }
-
- startIndex = hitCharacter;
- endIndex = hitCharacter;
- bool isHitCharacterWhitespace = TextAbstraction::IsWhiteSpace( mLogicalModel->mText[hitCharacter] );
-
- // Find the start and end of the text
- for( startIndex = hitCharacter; startIndex > 0; --startIndex )
- {
- if( isHitCharacterWhitespace != TextAbstraction::IsWhiteSpace( mLogicalModel->mText[ startIndex-1 ] ) )
- {
- break;
- }
- }
- const CharacterIndex pastTheEnd = mLogicalModel->mText.Count();
- for( endIndex = hitCharacter + 1u; endIndex < pastTheEnd; ++endIndex )
- {
- if( isHitCharacterWhitespace != TextAbstraction::IsWhiteSpace( mLogicalModel->mText[ endIndex ] ) )
- {
- break;
- }
- }
-}
-
-CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
- float visualY )
-{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GetClosestCursorIndex %p closest visualX %f visualY %f\n", this, visualX, visualY );
-
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return 0u;
- }
-
- CharacterIndex logicalIndex = 0u;
-
- const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
- const Length numberOfLines = mVisualModel->mLines.Count();
- if( ( 0 == numberOfGlyphs ) ||
- ( 0 == numberOfLines ) )
- {
- return logicalIndex;
- }
-
- // Find which line is closest
- 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();
-
- // 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();
-
- // 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();
-
- // Get the glyph's info buffer.
- const GlyphInfo* const glyphInfoBuffer = mVisualModel->mGlyphs.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;
-
- // Traverses glyphs in visual order. To do that use the visual to logical conversion table.
- CharacterIndex visualIndex = startCharacter;
- Length numberOfCharacters = 0u;
- for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex )
- {
- // The character in logical order.
- const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex;
-
- // Get the script of the character.
- const Script script = mLogicalModel->GetScript( characterLogicalOrderIndex );
-
- // The number of glyphs for that character
- const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex );
- ++numberOfCharacters;
-
-
- if( 0u != numberOfGlyphs )
- {
- // Get the first character/glyph of the group of glyphs.
- const CharacterIndex firstVisualCharacterIndex = 1u + visualIndex - numberOfCharacters;
- const CharacterIndex firstLogicalCharacterIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + firstVisualCharacterIndex ) : firstVisualCharacterIndex;
- const GlyphIndex firstLogicalGlyphIndex = *( charactersToGlyphBuffer + firstLogicalCharacterIndex );
-
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( firstLogicalGlyphIndex,
- numberOfGlyphs,
- glyphMetrics,
- glyphInfoBuffer,
- mMetrics );
-
- // Get the position of the first glyph.
- const Vector2& position = *( positionsBuffer + firstLogicalGlyphIndex );
-
- // Whether the glyph can be split, like Latin ligatures fi, ff or Arabic ﻻ.
- const bool isInterglyphIndex = ( numberOfCharacters > numberOfGlyphs ) && HasLigatureMustBreak( script );
- const Length numberOfBlocks = isInterglyphIndex ? numberOfCharacters : 1u;
- const float glyphAdvance = glyphMetrics.advance / static_cast<float>( numberOfBlocks );
-
- GlyphIndex index = 0u;
- for( ; !matched && ( index < numberOfBlocks ); ++index )
- {
- // Find the mid-point of the area containing the glyph
- const float glyphCenter = -glyphMetrics.xBearing + position.x + ( static_cast<float>( index ) + 0.5f ) * glyphAdvance;
-
- if( visualX < glyphCenter )
- {
- matched = true;
- break;
- }
- }
-
- if( matched )
- {
- visualIndex = firstVisualCharacterIndex + index;
- break;
- }
-
- numberOfCharacters = 0u;
- }
-
- }
-
-
- // Return the logical position of the cursor in characters.
-
- if( !matched )
- {
- visualIndex = endCharacter;
- }
-
- logicalIndex = hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex );
-
- DALI_ASSERT_DEBUG( ( logicalIndex <= mLogicalModel->mText.Count() && logicalIndex >= 0 ) && "GetClosestCursorIndex - Out of bounds index" );
-
- return logicalIndex;
-}
-
void Controller::Impl::GetCursorPosition( CharacterIndex logical,
CursorInfo& cursorInfo )
{
- // TODO: Check for multiline with \n, etc...
-
- const Length numberOfCharacters = mLogicalModel->mText.Count();
if( !IsShowingRealText() )
{
// Do not want to use the place-holder text to set the cursor position.
return;
}
- // Check if the logical position is the first or the last one of the text.
- const bool isFirstPosition = 0u == logical;
- const bool isLastPosition = numberOfCharacters == logical;
-
- // 'logical' is the logical 'cursor' index.
- // Get the next and current logical 'character' index.
- const CharacterIndex nextCharacterIndex = logical;
- const CharacterIndex characterIndex = isFirstPosition ? logical : logical - 1u;
-
- // Get the direction of the character and the next one.
- const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
-
- CharacterDirection isCurrentRightToLeft = false;
- CharacterDirection isNextRightToLeft = false;
- if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
- {
- isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + characterIndex );
- isNextRightToLeft = *( modelCharacterDirectionsBuffer + nextCharacterIndex );
- }
-
- // Get the line where the character is laid-out.
- const LineRun* const modelLines = mVisualModel->mLines.Begin();
-
- const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( characterIndex );
- const LineRun& line = *( modelLines + lineIndex );
-
- // Get the paragraph's direction.
- const CharacterDirection isRightToLeftParagraph = line.direction;
-
- // Check whether there is an alternative position:
-
- cursorInfo.isSecondaryCursor = ( !isLastPosition && ( isCurrentRightToLeft != isNextRightToLeft ) ) ||
- ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
-
- // Set the line offset and height.
- cursorInfo.lineOffset = 0.f;
- cursorInfo.lineHeight = line.ascender + -line.descender;
-
- // Calculate the primary cursor.
-
- CharacterIndex index = characterIndex;
- if( cursorInfo.isSecondaryCursor )
- {
- // If there is a secondary position, the primary cursor may be in a different place than the logical index.
-
- if( isLastPosition )
- {
- // The position of the cursor after the last character needs special
- // care depending on its direction and the direction of the paragraph.
-
- // 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!
- index = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u;
- index = mLogicalModel->GetLogicalCharacterIndex( index );
- }
- else
- {
- index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? characterIndex : nextCharacterIndex;
- }
- }
-
- const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
- const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
- const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
- const CharacterIndex* const glyphsToCharactersBuffer = mVisualModel->mGlyphsToCharacters.Begin();
- const Vector2* const glyphPositionsBuffer = mVisualModel->mGlyphPositions.Begin();
- const GlyphInfo* const glyphInfoBuffer = mVisualModel->mGlyphs.Begin();
-
- // Convert the cursor position into the glyph position.
- const GlyphIndex primaryGlyphIndex = *( charactersToGlyphBuffer + index );
- const Length primaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index );
- const Length primaryNumberOfCharacters = *( charactersPerGlyphBuffer + primaryGlyphIndex );
-
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( primaryGlyphIndex,
- primaryNumberOfGlyphs,
- glyphMetrics,
- glyphInfoBuffer,
- mMetrics );
-
- // Whether to add the glyph's advance to the cursor position.
- // i.e if the paragraph is left to right and the logical cursor is zero, the position is the position of the first glyph and the advance is not added,
- // if the logical cursor is one, the position is the position of the first glyph and the advance is added.
- // A 'truth table' was build and an online Karnaugh map tool was used to simplify the logic.
- //
- // FLCP A
- // ------
- // 0000 1
- // 0001 1
- // 0010 0
- // 0011 0
- // 0100 1
- // 0101 0
- // 0110 1
- // 0111 0
- // 1000 0
- // 1001 x
- // 1010 x
- // 1011 1
- // 1100 x
- // 1101 x
- // 1110 x
- // 1111 x
- //
- // Where F -> isFirstPosition
- // L -> isLastPosition
- // C -> isCurrentRightToLeft
- // P -> isRightToLeftParagraph
- // A -> Whether to add the glyph's advance.
-
- const bool addGlyphAdvance = ( ( isLastPosition && !isRightToLeftParagraph ) ||
- ( isFirstPosition && isRightToLeftParagraph ) ||
- ( !isFirstPosition && !isLastPosition && !isCurrentRightToLeft ) );
-
- float glyphAdvance = addGlyphAdvance ? glyphMetrics.advance : 0.f;
-
- if( !isLastPosition &&
- ( primaryNumberOfCharacters > 1u ) )
- {
- const CharacterIndex firstIndex = *( glyphsToCharactersBuffer + primaryGlyphIndex );
-
- bool isCurrentRightToLeft = false;
- if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
- {
- isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + index );
- }
-
- Length numberOfGlyphAdvance = ( isFirstPosition ? 0u : 1u ) + characterIndex - firstIndex;
- if( isCurrentRightToLeft )
- {
- numberOfGlyphAdvance = primaryNumberOfCharacters - numberOfGlyphAdvance;
- }
-
- glyphAdvance = static_cast<float>( numberOfGlyphAdvance ) * glyphMetrics.advance / static_cast<float>( primaryNumberOfCharacters );
- }
-
- // Get the glyph position and x bearing.
- const Vector2& primaryPosition = *( glyphPositionsBuffer + primaryGlyphIndex );
-
- // Set the primary cursor's height.
- cursorInfo.primaryCursorHeight = cursorInfo.isSecondaryCursor ? 0.5f * glyphMetrics.fontHeight : glyphMetrics.fontHeight;
-
- // Set the primary cursor's position.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + primaryPosition.x + glyphAdvance;
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
-
- // Calculate the secondary cursor.
-
- if( cursorInfo.isSecondaryCursor )
- {
- // Set the secondary cursor's height.
- cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
-
- CharacterIndex index = characterIndex;
- if( !isLastPosition )
- {
- index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? nextCharacterIndex : characterIndex;
- }
-
- const GlyphIndex secondaryGlyphIndex = *( charactersToGlyphBuffer + index );
- const Length secondaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index );
-
- const Vector2& secondaryPosition = *( glyphPositionsBuffer + secondaryGlyphIndex );
-
- GetGlyphsMetrics( secondaryGlyphIndex,
- secondaryNumberOfGlyphs,
- glyphMetrics,
- glyphInfoBuffer,
- mMetrics );
-
- // Set the secondary cursor's position.
- cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + secondaryPosition.x + ( isCurrentRightToLeft ? 0.f : glyphMetrics.advance );
- cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
- }
+ Text::GetCursorPosition( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ logical,
+ cursorInfo );
if( LayoutEngine::MULTI_LINE_BOX == mLayoutEngine.GetLayout() )
{
projects / platform / core / uifw / dali-toolkit.git / blobdiff