// EXTERNAL INCLUDES
#include <dali/public-api/adaptor-framework/key.h>
#include <dali/integration-api/debug.h>
+#include <limits>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/bidirectional-support.h>
#include <dali-toolkit/internal/text/character-set-conversion.h>
-#include <dali-toolkit/internal/text/layouts/layout-parameters.h>
+#include <dali-toolkit/internal/text/color-segmentation.h>
+#include <dali-toolkit/internal/text/cursor-helper-functions.h>
#include <dali-toolkit/internal/text/multi-language-support.h>
-#include <dali-toolkit/internal/text/script-run.h>
#include <dali-toolkit/internal/text/segmentation.h>
#include <dali-toolkit/internal/text/shaper.h>
-#include <dali-toolkit/internal/text/text-io.h>
-#include <dali-toolkit/internal/text/text-view.h>
+#include <dali-toolkit/internal/text/text-run-container.h>
namespace
{
-#if defined(DEBUG_ENABLED)
- Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
-#endif
-
/**
- * @brief Some characters can be shaped in more than one glyph.
- * This struct is used to retrieve metrics from these group of glyphs.
+ * @brief Struct used to calculate the selection box.
*/
-struct GlyphMetrics
+struct SelectionBoxInfo
{
- 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.
+ float lineOffset;
+ float lineHeight;
+ float minX;
+ float maxX;
};
-const std::string EMPTY_STRING("");
+#if defined(DEBUG_ENABLED)
+ Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
+#endif
+
+const float MAX_FLOAT = std::numeric_limits<float>::max();
+const float MIN_FLOAT = std::numeric_limits<float>::min();
+const Dali::Toolkit::Text::CharacterDirection LTR = false; ///< Left To Right direction
} // namespace
namespace Text
{
-/**
- * @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).
- * @param[in]
- * @param[in]
- */
-void GetGlyphsMetrics( GlyphIndex glyphIndex,
- Length numberOfGlyphs,
- GlyphMetrics& glyphMetrics,
- VisualModelPtr visualModel,
- TextAbstraction::FontClient& fontClient )
-{
- const GlyphInfo* glyphsBuffer = visualModel->mGlyphs.Begin();
-
- const GlyphInfo& firstGlyph = *( glyphsBuffer + glyphIndex );
-
- Text::FontMetrics fontMetrics;
- fontClient.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;
- }
-}
-
EventData::EventData( DecoratorPtr decorator )
: mDecorator( decorator ),
+ mImfManager(),
mPlaceholderTextActive(),
mPlaceholderTextInactive(),
mPlaceholderTextColor( 0.8f, 0.8f, 0.8f, 0.8f ),
mEventQueue(),
- mScrollPosition(),
mState( INACTIVE ),
mPrimaryCursorPosition( 0u ),
mLeftSelectionPosition( 0u ),
mRightSelectionPosition( 0u ),
mPreEditStartPosition( 0u ),
mPreEditLength( 0u ),
+ mCursorHookPositionX( 0.f ),
mIsShowingPlaceholderText( false ),
mPreEditFlag( false ),
mDecoratorUpdated( false ),
mGrabHandleEnabled( true ),
mGrabHandlePopupEnabled( true ),
mSelectionEnabled( true ),
- mHorizontalScrollingEnabled( true ),
- mVerticalScrollingEnabled( false ),
mUpdateCursorPosition( false ),
+ mUpdateGrabHandlePosition( false ),
mUpdateLeftSelectionPosition( false ),
mUpdateRightSelectionPosition( false ),
+ mIsLeftHandleSelected( false ),
+ mUpdateHighlightBox( false ),
mScrollAfterUpdatePosition( false ),
- mScrollAfterDelete( false )
-{}
+ mScrollAfterDelete( false ),
+ mAllTextSelected( false ),
+ mUpdateInputStyle( false )
+{
+ mImfManager = ImfManager::Get();
+}
EventData::~EventData()
{}
{
switch( iter->type )
{
- case Event::CURSOR_KEY_EVENT:
- {
- OnCursorKeyEvent( *iter );
- break;
- }
- case Event::TAP_EVENT:
- {
- OnTapEvent( *iter );
- break;
- }
- case Event::PAN_EVENT:
- {
- OnPanEvent( *iter );
- break;
- }
- case Event::GRAB_HANDLE_EVENT:
- case Event::LEFT_SELECTION_HANDLE_EVENT:
- case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
- {
- OnHandleEvent( *iter );
- break;
- }
+ case Event::CURSOR_KEY_EVENT:
+ {
+ OnCursorKeyEvent( *iter );
+ break;
+ }
+ case Event::TAP_EVENT:
+ {
+ OnTapEvent( *iter );
+ break;
+ }
+ case Event::LONG_PRESS_EVENT:
+ {
+ OnLongPressEvent( *iter );
+ break;
+ }
+ case Event::PAN_EVENT:
+ {
+ OnPanEvent( *iter );
+ break;
+ }
+ case Event::GRAB_HANDLE_EVENT:
+ case Event::LEFT_SELECTION_HANDLE_EVENT:
+ case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
+ {
+ OnHandleEvent( *iter );
+ break;
+ }
+ case Event::SELECT:
+ {
+ OnSelectEvent( *iter );
+ break;
+ }
+ case Event::SELECT_ALL:
+ {
+ OnSelectAllEvent();
+ break;
+ }
}
}
}
+ if( mEventData->mUpdateCursorPosition ||
+ mEventData->mUpdateHighlightBox )
+ {
+ NotifyImfManager();
+ }
+
// The cursor must also be repositioned after inserts into the model
if( mEventData->mUpdateCursorPosition )
{
// Updates the cursor position and scrolls the text to make it visible.
+ CursorInfo cursorInfo;
+ // Calculate the cursor position from the new cursor index.
+ GetCursorPosition( mEventData->mPrimaryCursorPosition,
+ cursorInfo );
+
+ if( mEventData->mUpdateCursorHookPosition )
+ {
+ // Update the cursor hook position. Used to move the cursor with the keys 'up' and 'down'.
+ mEventData->mCursorHookPositionX = cursorInfo.primaryPosition.x;
+ mEventData->mUpdateCursorHookPosition = false;
+ }
- UpdateCursorPosition();
+ // Scroll first the text after delete ...
+ if( mEventData->mScrollAfterDelete )
+ {
+ ScrollTextToMatchCursor( cursorInfo );
+ }
+ // ... then, text can be scrolled to make the cursor visible.
if( mEventData->mScrollAfterUpdatePosition )
{
- const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
-
- ScrollToMakePositionVisible( primaryCursorPosition );
- mEventData->mScrollAfterUpdatePosition = false;
+ const Vector2 currentCursorPosition( cursorInfo.primaryPosition.x, cursorInfo.lineOffset );
+ ScrollToMakePositionVisible( currentCursorPosition, cursorInfo.lineHeight );
}
+ mEventData->mScrollAfterUpdatePosition = false;
+ mEventData->mScrollAfterDelete = false;
+
+ UpdateCursorPosition( cursorInfo );
mEventData->mDecoratorUpdated = true;
mEventData->mUpdateCursorPosition = false;
- }
- else if( mEventData->mScrollAfterDelete )
- {
- ScrollTextToMatchCursor();
- mEventData->mDecoratorUpdated = true;
- mEventData->mScrollAfterDelete = false;
+ mEventData->mUpdateGrabHandlePosition = false;
}
else
{
- bool leftScroll = false;
- bool rightScroll = false;
+ CursorInfo leftHandleInfo;
+ CursorInfo rightHandleInfo;
- if( mEventData->mUpdateLeftSelectionPosition )
+ if( mEventData->mUpdateHighlightBox )
{
- UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
+ GetCursorPosition( mEventData->mLeftSelectionPosition,
+ leftHandleInfo );
- if( mEventData->mScrollAfterUpdatePosition )
+ GetCursorPosition( mEventData->mRightSelectionPosition,
+ rightHandleInfo );
+
+ if( mEventData->mScrollAfterUpdatePosition && ( mEventData->mIsLeftHandleSelected ? mEventData->mUpdateLeftSelectionPosition : mEventData->mUpdateRightSelectionPosition ) )
{
- const Vector2& leftHandlePosition = mEventData->mDecorator->GetPosition( LEFT_SELECTION_HANDLE );
+ CursorInfo& info = mEventData->mIsLeftHandleSelected ? leftHandleInfo : rightHandleInfo;
- ScrollToMakePositionVisible( leftHandlePosition );
- leftScroll = true;
+ const Vector2 currentCursorPosition( info.primaryPosition.x, info.lineOffset );
+ ScrollToMakePositionVisible( currentCursorPosition, info.lineHeight );
}
+ }
+
+ if( mEventData->mUpdateLeftSelectionPosition )
+ {
+ UpdateSelectionHandle( LEFT_SELECTION_HANDLE,
+ leftHandleInfo );
+ SetPopupButtons();
mEventData->mDecoratorUpdated = true;
mEventData->mUpdateLeftSelectionPosition = false;
}
if( mEventData->mUpdateRightSelectionPosition )
{
- UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
-
- if( mEventData->mScrollAfterUpdatePosition )
- {
- const Vector2& rightHandlePosition = mEventData->mDecorator->GetPosition( RIGHT_SELECTION_HANDLE );
-
- ScrollToMakePositionVisible( rightHandlePosition );
- rightScroll = true;
- }
+ UpdateSelectionHandle( RIGHT_SELECTION_HANDLE,
+ rightHandleInfo );
+ SetPopupButtons();
mEventData->mDecoratorUpdated = true;
mEventData->mUpdateRightSelectionPosition = false;
}
- if( leftScroll || rightScroll )
+ if( mEventData->mUpdateHighlightBox )
{
- mEventData->mScrollAfterUpdatePosition = false;
+ RepositionSelectionHandles();
+
+ mEventData->mUpdateLeftSelectionPosition = false;
+ mEventData->mUpdateRightSelectionPosition = false;
+ mEventData->mUpdateHighlightBox = false;
}
+
+ mEventData->mScrollAfterUpdatePosition = false;
+ }
+
+ if( mEventData->mUpdateInputStyle )
+ {
+ // Set the default style first.
+ RetrieveDefaultInputStyle( mEventData->mInputStyle );
+
+ // Get the character index from the cursor index.
+ const CharacterIndex styleIndex = ( mEventData->mPrimaryCursorPosition > 0u ) ? mEventData->mPrimaryCursorPosition - 1u : 0u;
+
+ // Retrieve the style from the style runs stored in the logical model.
+ mLogicalModel->RetrieveStyle( styleIndex, mEventData->mInputStyle );
+
+ mEventData->mUpdateInputStyle = false;
}
mEventData->mEventQueue.clear();
return decoratorUpdated;
}
-void Controller::Impl::UpdateModel( OperationsMask operationsRequired )
+void Controller::Impl::NotifyImfManager()
{
- // Calculate the operations to be done.
- const OperationsMask operations = static_cast<OperationsMask>( mOperationsPending & operationsRequired );
-
- Vector<Character>& utf32Characters = mLogicalModel->mText;
+ if( mEventData && mEventData->mImfManager )
+ {
+ CharacterIndex cursorPosition = GetLogicalCursorPosition();
- const Length numberOfCharacters = utf32Characters.Count();
+ const Length numberOfWhiteSpaces = GetNumberOfWhiteSpaces( 0u );
- Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
- if( 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'.
- // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines
- // is not shaped together).
- lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK );
+ // Update the cursor position by removing the initial white spaces.
+ if( cursorPosition < numberOfWhiteSpaces )
+ {
+ cursorPosition = 0u;
+ }
+ else
+ {
+ cursorPosition -= numberOfWhiteSpaces;
+ }
- SetLineBreakInfo( utf32Characters,
- lineBreakInfo );
+ mEventData->mImfManager.SetCursorPosition( cursorPosition );
+ mEventData->mImfManager.NotifyCursorPosition();
}
+}
- Vector<WordBreakInfo>& wordBreakInfo = mLogicalModel->mWordBreakInfo;
- if( 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 );
+CharacterIndex Controller::Impl::GetLogicalCursorPosition() const
+{
+ CharacterIndex cursorPosition = 0u;
- SetWordBreakInfo( utf32Characters,
- wordBreakInfo );
+ if( mEventData )
+ {
+ if( ( EventData::SELECTING == mEventData->mState ) ||
+ ( EventData::SELECTION_HANDLE_PANNING == mEventData->mState ) )
+ {
+ cursorPosition = std::min( mEventData->mRightSelectionPosition, mEventData->mLeftSelectionPosition );
+ }
+ else
+ {
+ cursorPosition = mEventData->mPrimaryCursorPosition;
+ }
}
- const bool getScripts = GET_SCRIPTS & operations;
- const bool validateFonts = VALIDATE_FONTS & operations;
+ return cursorPosition;
+}
- Vector<ScriptRun>& scripts = mLogicalModel->mScriptRuns;
- Vector<FontRun>& validFonts = mLogicalModel->mFontRuns;
+Length Controller::Impl::GetNumberOfWhiteSpaces( CharacterIndex index ) const
+{
+ Length numberOfWhiteSpaces = 0u;
- if( getScripts || validateFonts )
- {
- // Validates the fonts assigned by the application or assigns default ones.
- // It makes sure all the characters are going to be rendered by the correct font.
- MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get();
+ // Get the buffer to the text.
+ Character* utf32CharacterBuffer = mLogicalModel->mText.Begin();
- if( getScripts )
+ const Length totalNumberOfCharacters = mLogicalModel->mText.Count();
+ for( ; index < totalNumberOfCharacters; ++index, ++numberOfWhiteSpaces )
+ {
+ if( !TextAbstraction::IsWhiteSpace( *( utf32CharacterBuffer + index ) ) )
{
- // Retrieves the scripts used in the text.
- multilanguageSupport.SetScripts( utf32Characters,
- lineBreakInfo,
- scripts );
+ break;
}
+ }
- if( validateFonts )
- {
- if( 0u == validFonts.Count() )
- {
- // Copy the requested font defaults received via the property system.
- // These may not be valid i.e. may not contain glyphs for the necessary scripts.
- GetDefaultFonts( validFonts, numberOfCharacters );
- }
+ return numberOfWhiteSpaces;
+}
- // Validates the fonts. If there is a character with no assigned font it sets a default one.
- // After this call, fonts are validated.
- multilanguageSupport.ValidateFonts( utf32Characters,
- scripts,
- validFonts );
- }
- }
+void Controller::Impl::GetText( CharacterIndex index, std::string& text ) const
+{
+ // Get the total number of characters.
+ Length numberOfCharacters = mLogicalModel->mText.Count();
- Vector<Character> mirroredUtf32Characters;
- bool textMirrored = false;
- if( BIDI_INFO & operations )
+ // Retrieve the text.
+ if( 0u != numberOfCharacters )
{
- // Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's
- // bidirectional info.
+ Utf32ToUtf8( mLogicalModel->mText.Begin() + index, numberOfCharacters - index, text );
+ }
+}
- Length numberOfParagraphs = 0u;
+void Controller::Impl::CalculateTextUpdateIndices( Length& numberOfCharacters )
+{
+ mTextUpdateInfo.mParagraphCharacterIndex = 0u;
+ mTextUpdateInfo.mStartGlyphIndex = 0u;
+ mTextUpdateInfo.mStartLineIndex = 0u;
+ numberOfCharacters = 0u;
- const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin();
- for( Length index = 0u; index < numberOfCharacters; ++index )
- {
- if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) )
- {
- ++numberOfParagraphs;
- }
- }
+ const Length numberOfParagraphs = mLogicalModel->mParagraphInfo.Count();
+ if( 0u == numberOfParagraphs )
+ {
+ mTextUpdateInfo.mParagraphCharacterIndex = 0u;
+ numberOfCharacters = 0u;
- Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mLogicalModel->mBidirectionalParagraphInfo;
- bidirectionalInfo.Reserve( numberOfParagraphs );
+ mTextUpdateInfo.mRequestedNumberOfCharacters = mTextUpdateInfo.mNumberOfCharactersToAdd - mTextUpdateInfo.mNumberOfCharactersToRemove;
- // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts.
- SetBidirectionalInfo( utf32Characters,
- scripts,
- lineBreakInfo,
- bidirectionalInfo );
+ // Nothing else to do if there are no paragraphs.
+ return;
+ }
- if( 0u != bidirectionalInfo.Count() )
+ // Find the paragraphs to be updated.
+ Vector<ParagraphRunIndex> paragraphsToBeUpdated;
+ if( mTextUpdateInfo.mCharacterIndex >= mTextUpdateInfo.mPreviousNumberOfCharacters )
+ {
+ // Text is being added at the end of the current text.
+ if( mTextUpdateInfo.mIsLastCharacterNewParagraph )
{
- // This paragraph has right to left text. Some characters may need to be mirrored.
- // TODO: consider if the mirrored string can be stored as well.
+ // Text is being added in a new paragraph after the last character of the text.
+ mTextUpdateInfo.mParagraphCharacterIndex = mTextUpdateInfo.mPreviousNumberOfCharacters;
+ numberOfCharacters = 0u;
+ mTextUpdateInfo.mRequestedNumberOfCharacters = mTextUpdateInfo.mNumberOfCharactersToAdd - mTextUpdateInfo.mNumberOfCharactersToRemove;
- textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters );
+ mTextUpdateInfo.mStartGlyphIndex = mVisualModel->mGlyphs.Count();
+ mTextUpdateInfo.mStartLineIndex = mVisualModel->mLines.Count() - 1u;
- // Only set the character directions if there is right to left characters.
- Vector<CharacterDirection>& directions = mLogicalModel->mCharacterDirections;
- directions.Resize( numberOfCharacters );
+ // Nothing else to do;
+ return;
+ }
- GetCharactersDirection( bidirectionalInfo,
- directions );
+ paragraphsToBeUpdated.PushBack( numberOfParagraphs - 1u );
+ }
+ else
+ {
+ Length numberOfCharactersToUpdate = 0u;
+ if( mTextUpdateInfo.mFullRelayoutNeeded )
+ {
+ numberOfCharactersToUpdate = mTextUpdateInfo.mPreviousNumberOfCharacters;
}
else
{
- // There is no right to left characters. Clear the directions vector.
- mLogicalModel->mCharacterDirections.Clear();
+ numberOfCharactersToUpdate = ( mTextUpdateInfo.mNumberOfCharactersToRemove > 0u ) ? mTextUpdateInfo.mNumberOfCharactersToRemove : 1u;
}
+ mLogicalModel->FindParagraphs( mTextUpdateInfo.mCharacterIndex,
+ numberOfCharactersToUpdate,
+ paragraphsToBeUpdated );
+ }
- }
-
- Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
- Vector<CharacterIndex>& glyphsToCharactersMap = mVisualModel->mGlyphsToCharacters;
- Vector<Length>& charactersPerGlyph = mVisualModel->mCharactersPerGlyph;
- if( SHAPE_TEXT & operations )
+ if( 0u != paragraphsToBeUpdated.Count() )
{
- const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
- // Shapes the text.
- ShapeText( textToShape,
- lineBreakInfo,
- scripts,
- validFonts,
- glyphs,
- glyphsToCharactersMap,
- charactersPerGlyph );
+ const ParagraphRunIndex firstParagraphIndex = *( paragraphsToBeUpdated.Begin() );
+ const ParagraphRun& firstParagraph = *( mLogicalModel->mParagraphInfo.Begin() + firstParagraphIndex );
+ mTextUpdateInfo.mParagraphCharacterIndex = firstParagraph.characterRun.characterIndex;
- // Create the 'number of glyphs' per character and the glyph to character conversion tables.
- mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
- mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters );
- }
+ ParagraphRunIndex lastParagraphIndex = *( paragraphsToBeUpdated.End() - 1u );
+ const ParagraphRun& lastParagraph = *( mLogicalModel->mParagraphInfo.Begin() + lastParagraphIndex );
- const Length numberOfGlyphs = glyphs.Count();
+ if( ( mTextUpdateInfo.mNumberOfCharactersToRemove > 0u ) && // Some character are removed.
+ ( lastParagraphIndex < numberOfParagraphs - 1u ) && // There is a next paragraph.
+ ( ( lastParagraph.characterRun.characterIndex + lastParagraph.characterRun.numberOfCharacters ) == // The last removed character is the new paragraph character.
+ ( mTextUpdateInfo.mCharacterIndex + mTextUpdateInfo.mNumberOfCharactersToRemove ) ) )
+ {
+ // The new paragraph character of the last updated paragraph has been removed so is going to be merged with the next one.
+ const ParagraphRun& lastParagraph = *( mLogicalModel->mParagraphInfo.Begin() + lastParagraphIndex + 1u );
- if( GET_GLYPH_METRICS & operations )
- {
- mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs );
+ numberOfCharacters = lastParagraph.characterRun.characterIndex + lastParagraph.characterRun.numberOfCharacters - mTextUpdateInfo.mParagraphCharacterIndex;
+ }
+ else
+ {
+ numberOfCharacters = lastParagraph.characterRun.characterIndex + lastParagraph.characterRun.numberOfCharacters - mTextUpdateInfo.mParagraphCharacterIndex;
+ }
}
+
+ mTextUpdateInfo.mRequestedNumberOfCharacters = numberOfCharacters + mTextUpdateInfo.mNumberOfCharactersToAdd - mTextUpdateInfo.mNumberOfCharactersToRemove;
+ mTextUpdateInfo.mStartGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + mTextUpdateInfo.mParagraphCharacterIndex );
}
-void Controller::Impl::GetDefaultFonts( Vector<FontRun>& fonts, Length numberOfCharacters )
+void Controller::Impl::ClearFullModelData( OperationsMask operations )
{
- if( mFontDefaults )
+ if( NO_OPERATION != ( GET_LINE_BREAKS & operations ) )
{
- FontRun fontRun;
- fontRun.characterRun.characterIndex = 0;
- fontRun.characterRun.numberOfCharacters = numberOfCharacters;
- fontRun.fontId = mFontDefaults->GetFontId( mFontClient );
- fontRun.isDefault = true;
+ mLogicalModel->mLineBreakInfo.Clear();
+ mLogicalModel->mParagraphInfo.Clear();
+ }
- fonts.PushBack( fontRun );
+ if( NO_OPERATION != ( GET_WORD_BREAKS & operations ) )
+ {
+ mLogicalModel->mLineBreakInfo.Clear();
}
-}
-void Controller::Impl::OnCursorKeyEvent( const Event& event )
-{
- if( NULL == mEventData )
+ if( NO_OPERATION != ( GET_SCRIPTS & operations ) )
{
- // Nothing to do if there is no text input.
- return;
+ mLogicalModel->mScriptRuns.Clear();
}
- int keyCode = event.p1.mInt;
+ if( NO_OPERATION != ( VALIDATE_FONTS & operations ) )
+ {
+ mLogicalModel->mFontRuns.Clear();
+ }
- if( Dali::DALI_KEY_CURSOR_LEFT == keyCode )
+ if( 0u != mLogicalModel->mBidirectionalParagraphInfo.Count() )
{
- if( mEventData->mPrimaryCursorPosition > 0u )
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
{
- mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition - 1u );
+ mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mLogicalModel->mCharacterDirections.Clear();
}
- }
- else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
- {
- if( mLogicalModel->GetNumberOfCharacters() > mEventData->mPrimaryCursorPosition )
+
+ if( NO_OPERATION != ( REORDER & operations ) )
{
- mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition );
+ // Free the allocated memory used to store the conversion table in the bidirectional line info run.
+ for( Vector<BidirectionalLineInfoRun>::Iterator it = mLogicalModel->mBidirectionalLineInfo.Begin(),
+ endIt = mLogicalModel->mBidirectionalLineInfo.End();
+ it != endIt;
+ ++it )
+ {
+ BidirectionalLineInfoRun& bidiLineInfo = *it;
+
+ free( bidiLineInfo.visualToLogicalMap );
+ bidiLineInfo.visualToLogicalMap = NULL;
+ }
+ mLogicalModel->mBidirectionalLineInfo.Clear();
}
}
- else if( Dali::DALI_KEY_CURSOR_UP == keyCode )
+
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
{
- // TODO
+ mVisualModel->mGlyphs.Clear();
+ mVisualModel->mGlyphsToCharacters.Clear();
+ mVisualModel->mCharactersToGlyph.Clear();
+ mVisualModel->mCharactersPerGlyph.Clear();
+ mVisualModel->mGlyphsPerCharacter.Clear();
+ mVisualModel->mGlyphPositions.Clear();
}
- else if( Dali::DALI_KEY_CURSOR_DOWN == keyCode )
+
+ if( NO_OPERATION != ( LAYOUT & operations ) )
{
- // TODO
+ mVisualModel->mLines.Clear();
}
- mEventData->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdatePosition = true;
+ if( NO_OPERATION != ( COLOR & operations ) )
+ {
+ mVisualModel->mColorIndices.Clear();
+ }
}
-void Controller::Impl::OnTapEvent( const Event& event )
+void Controller::Impl::ClearCharacterModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations )
{
- if( NULL != mEventData )
+ const CharacterIndex endIndexPlusOne = endIndex + 1u;
+
+ if( NO_OPERATION != ( GET_LINE_BREAKS & operations ) )
{
- const unsigned int tapCount = event.p1.mUint;
+ // Clear the line break info.
+ LineBreakInfo* lineBreakInfoBuffer = mLogicalModel->mLineBreakInfo.Begin();
- if( 1u == tapCount )
- {
- if( ! IsShowingPlaceholderText() )
- {
- const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
- const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+ mLogicalModel->mLineBreakInfo.Erase( lineBreakInfoBuffer + startIndex,
+ lineBreakInfoBuffer + endIndexPlusOne );
- mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
- }
- else
- {
- mEventData->mPrimaryCursorPosition = 0u;
- }
+ // Clear the paragraphs.
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mLogicalModel->mParagraphInfo );
+ }
- mEventData->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdatePosition = true;
- }
- else if( mEventData->mSelectionEnabled &&
- ( 2u == tapCount ) )
- {
- // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
- const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
- const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+ if( NO_OPERATION != ( GET_WORD_BREAKS & operations ) )
+ {
+ // Clear the word break info.
+ WordBreakInfo* wordBreakInfoBuffer = mLogicalModel->mWordBreakInfo.Begin();
- RepositionSelectionHandles( xPosition,
- yPosition );
+ mLogicalModel->mWordBreakInfo.Erase( wordBreakInfoBuffer + startIndex,
+ wordBreakInfoBuffer + endIndexPlusOne );
+ }
- mEventData->mScrollAfterUpdatePosition = true;
- mEventData->mUpdateLeftSelectionPosition = true;
- mEventData->mUpdateRightSelectionPosition = true;
+ if( NO_OPERATION != ( GET_SCRIPTS & operations ) )
+ {
+ // Clear the scripts.
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mLogicalModel->mScriptRuns );
+ }
+
+ if( NO_OPERATION != ( VALIDATE_FONTS & operations ) )
+ {
+ // Clear the fonts.
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mLogicalModel->mFontRuns );
+ }
+
+ if( 0u != mLogicalModel->mBidirectionalParagraphInfo.Count() )
+ {
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
+ {
+ // Clear the bidirectional paragraph info.
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mLogicalModel->mBidirectionalParagraphInfo );
+
+ // Clear the character's directions.
+ CharacterDirection* characterDirectionsBuffer = mLogicalModel->mCharacterDirections.Begin();
+
+ mLogicalModel->mCharacterDirections.Erase( characterDirectionsBuffer + startIndex,
+ characterDirectionsBuffer + endIndexPlusOne );
+ }
+
+ if( NO_OPERATION != ( REORDER & operations ) )
+ {
+ uint32_t startRemoveIndex = mLogicalModel->mBidirectionalLineInfo.Count();
+ uint32_t endRemoveIndex = startRemoveIndex;
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mLogicalModel->mBidirectionalLineInfo,
+ startRemoveIndex,
+ endRemoveIndex );
+
+ BidirectionalLineInfoRun* bidirectionalLineInfoBuffer = mLogicalModel->mBidirectionalLineInfo.Begin();
+
+ // Free the allocated memory used to store the conversion table in the bidirectional line info run.
+ for( Vector<BidirectionalLineInfoRun>::Iterator it = bidirectionalLineInfoBuffer + startRemoveIndex,
+ endIt = bidirectionalLineInfoBuffer + endRemoveIndex;
+ it != endIt;
+ ++it )
+ {
+ BidirectionalLineInfoRun& bidiLineInfo = *it;
+
+ free( bidiLineInfo.visualToLogicalMap );
+ bidiLineInfo.visualToLogicalMap = NULL;
+ }
+
+ mLogicalModel->mBidirectionalLineInfo.Erase( bidirectionalLineInfoBuffer + startRemoveIndex,
+ bidirectionalLineInfoBuffer + endRemoveIndex );
}
}
}
-void Controller::Impl::OnPanEvent( const Event& event )
+void Controller::Impl::ClearGlyphModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations )
+{
+ const CharacterIndex endIndexPlusOne = endIndex + 1u;
+ const Length numberOfCharactersRemoved = endIndexPlusOne - startIndex;
+
+ // Convert the character index to glyph index before deleting the character to glyph and the glyphs per character buffers.
+ GlyphIndex* charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ Length* glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+
+ const GlyphIndex endGlyphIndexPlusOne = *( charactersToGlyphBuffer + endIndex ) + *( glyphsPerCharacterBuffer + endIndex );
+ const Length numberOfGlyphsRemoved = endGlyphIndexPlusOne - mTextUpdateInfo.mStartGlyphIndex;
+
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
+ {
+ // Update the character to glyph indices.
+ for( Vector<GlyphIndex>::Iterator it = charactersToGlyphBuffer + endIndexPlusOne,
+ endIt = charactersToGlyphBuffer + mVisualModel->mCharactersToGlyph.Count();
+ it != endIt;
+ ++it )
+ {
+ CharacterIndex& index = *it;
+ index -= numberOfGlyphsRemoved;
+ }
+
+ // Clear the character to glyph conversion table.
+ mVisualModel->mCharactersToGlyph.Erase( charactersToGlyphBuffer + startIndex,
+ charactersToGlyphBuffer + endIndexPlusOne );
+
+ // Clear the glyphs per character table.
+ mVisualModel->mGlyphsPerCharacter.Erase( glyphsPerCharacterBuffer + startIndex,
+ glyphsPerCharacterBuffer + endIndexPlusOne );
+
+ // Clear the glyphs buffer.
+ GlyphInfo* glyphsBuffer = mVisualModel->mGlyphs.Begin();
+ mVisualModel->mGlyphs.Erase( glyphsBuffer + mTextUpdateInfo.mStartGlyphIndex,
+ glyphsBuffer + endGlyphIndexPlusOne );
+
+ CharacterIndex* glyphsToCharactersBuffer = mVisualModel->mGlyphsToCharacters.Begin();
+
+ // Update the glyph to character indices.
+ for( Vector<CharacterIndex>::Iterator it = glyphsToCharactersBuffer + endGlyphIndexPlusOne,
+ endIt = glyphsToCharactersBuffer + mVisualModel->mGlyphsToCharacters.Count();
+ it != endIt;
+ ++it )
+ {
+ CharacterIndex& index = *it;
+ index -= numberOfCharactersRemoved;
+ }
+
+ // Clear the glyphs to characters buffer.
+ mVisualModel->mGlyphsToCharacters.Erase( glyphsToCharactersBuffer + mTextUpdateInfo.mStartGlyphIndex,
+ glyphsToCharactersBuffer + endGlyphIndexPlusOne );
+
+ // Clear the characters per glyph buffer.
+ Length* charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ mVisualModel->mCharactersPerGlyph.Erase( charactersPerGlyphBuffer + mTextUpdateInfo.mStartGlyphIndex,
+ charactersPerGlyphBuffer + endGlyphIndexPlusOne );
+
+ // Clear the positions buffer.
+ Vector2* positionsBuffer = mVisualModel->mGlyphPositions.Begin();
+ mVisualModel->mGlyphPositions.Erase( positionsBuffer + mTextUpdateInfo.mStartGlyphIndex,
+ positionsBuffer + endGlyphIndexPlusOne );
+ }
+
+ if( NO_OPERATION != ( LAYOUT & operations ) )
+ {
+ // Clear the lines.
+ uint32_t startRemoveIndex = mVisualModel->mLines.Count();
+ uint32_t endRemoveIndex = startRemoveIndex;
+ ClearCharacterRuns( startIndex,
+ endIndex,
+ mVisualModel->mLines,
+ startRemoveIndex,
+ endRemoveIndex );
+
+ // Will update the glyph runs.
+ startRemoveIndex = mVisualModel->mLines.Count();
+ endRemoveIndex = startRemoveIndex;
+ ClearGlyphRuns( mTextUpdateInfo.mStartGlyphIndex,
+ endGlyphIndexPlusOne - 1u,
+ mVisualModel->mLines,
+ startRemoveIndex,
+ endRemoveIndex );
+
+ // Set the line index from where to insert the new laid-out lines.
+ mTextUpdateInfo.mStartLineIndex = startRemoveIndex;
+
+ LineRun* linesBuffer = mVisualModel->mLines.Begin();
+ mVisualModel->mLines.Erase( linesBuffer + startRemoveIndex,
+ linesBuffer + endRemoveIndex );
+ }
+
+ if( NO_OPERATION != ( COLOR & operations ) )
+ {
+ if( 0u != mVisualModel->mColorIndices.Count() )
+ {
+ ColorIndex* colorIndexBuffer = mVisualModel->mColorIndices.Begin();
+ mVisualModel->mColorIndices.Erase( colorIndexBuffer + mTextUpdateInfo.mStartGlyphIndex,
+ colorIndexBuffer + endGlyphIndexPlusOne );
+ }
+ }
+}
+
+void Controller::Impl::ClearModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations )
+{
+ if( mTextUpdateInfo.mClearAll ||
+ ( ( 0u == startIndex ) &&
+ ( mTextUpdateInfo.mPreviousNumberOfCharacters == endIndex + 1u ) ) )
+ {
+ ClearFullModelData( operations );
+ }
+ else
+ {
+ // Clear the model data related with characters.
+ ClearCharacterModelData( startIndex, endIndex, operations );
+
+ // Clear the model data related with glyphs.
+ ClearGlyphModelData( startIndex, endIndex, operations );
+ }
+
+ // The estimated number of lines. Used to avoid reallocations when layouting.
+ mTextUpdateInfo.mEstimatedNumberOfLines = std::max( mVisualModel->mLines.Count(), mLogicalModel->mParagraphInfo.Count() );
+
+ mVisualModel->ClearCaches();
+}
+
+bool Controller::Impl::UpdateModel( OperationsMask operationsRequired )
+{
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::UpdateModel\n" );
+
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mOperationsPending & operationsRequired );
+
+ if( NO_OPERATION == operations )
+ {
+ // Nothing to do if no operations are pending and required.
+ return false;
+ }
+
+ Vector<Character>& utf32Characters = mLogicalModel->mText;
+
+ const Length numberOfCharacters = utf32Characters.Count();
+
+ // Index to the first character of the first paragraph to be updated.
+ CharacterIndex startIndex = 0u;
+ // Number of characters of the paragraphs to be removed.
+ Length paragraphCharacters = 0u;
+
+ CalculateTextUpdateIndices( paragraphCharacters );
+ startIndex = mTextUpdateInfo.mParagraphCharacterIndex;
+
+ if( mTextUpdateInfo.mClearAll ||
+ ( 0u != paragraphCharacters ) )
+ {
+ ClearModelData( startIndex, startIndex + ( ( paragraphCharacters > 0u ) ? paragraphCharacters - 1u : 0u ), operations );
+ }
+
+ mTextUpdateInfo.mClearAll = false;
+
+ // Whether the model is updated.
+ bool updated = false;
+
+ Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
+ const Length requestedNumberOfCharacters = mTextUpdateInfo.mRequestedNumberOfCharacters;
+
+ 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'.
+ // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines
+ // is not shaped together).
+ lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK );
+
+ SetLineBreakInfo( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
+ lineBreakInfo );
+
+ // Create the paragraph info.
+ mLogicalModel->CreateParagraphInfo( startIndex,
+ requestedNumberOfCharacters );
+ updated = true;
+ }
+
+ Vector<WordBreakInfo>& wordBreakInfo = mLogicalModel->mWordBreakInfo;
+ 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 );
+
+ SetWordBreakInfo( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
+ wordBreakInfo );
+ updated = true;
+ }
+
+ 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;
+
+ if( getScripts || validateFonts )
+ {
+ // Validates the fonts assigned by the application or assigns default ones.
+ // It makes sure all the characters are going to be rendered by the correct font.
+ MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get();
+
+ if( getScripts )
+ {
+ // Retrieves the scripts used in the text.
+ multilanguageSupport.SetScripts( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
+ scripts );
+ }
+
+ if( validateFonts )
+ {
+ // Validate the fonts set through the mark-up string.
+ Vector<FontDescriptionRun>& fontDescriptionRuns = mLogicalModel->mFontDescriptionRuns;
+
+ // Get the default font id.
+ const FontId defaultFontId = ( NULL == mFontDefaults ) ? 0u : mFontDefaults->GetFontId( mFontClient );
+
+ // Validates the fonts. If there is a character with no assigned font it sets a default one.
+ // After this call, fonts are validated.
+ multilanguageSupport.ValidateFonts( utf32Characters,
+ scripts,
+ fontDescriptionRuns,
+ defaultFontId,
+ startIndex,
+ requestedNumberOfCharacters,
+ validFonts );
+ }
+ updated = true;
+ }
+
+ Vector<Character> mirroredUtf32Characters;
+ bool textMirrored = false;
+ const Length numberOfParagraphs = mLogicalModel->mParagraphInfo.Count();
+ if( NO_OPERATION != ( BIDI_INFO & operations ) )
+ {
+ Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mLogicalModel->mBidirectionalParagraphInfo;
+ bidirectionalInfo.Reserve( numberOfParagraphs );
+
+ // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts.
+ SetBidirectionalInfo( utf32Characters,
+ scripts,
+ lineBreakInfo,
+ startIndex,
+ requestedNumberOfCharacters,
+ bidirectionalInfo );
+
+ if( 0u != bidirectionalInfo.Count() )
+ {
+ // Only set the character directions if there is right to left characters.
+ Vector<CharacterDirection>& directions = mLogicalModel->mCharacterDirections;
+ GetCharactersDirection( bidirectionalInfo,
+ numberOfCharacters,
+ startIndex,
+ requestedNumberOfCharacters,
+ directions );
+
+ // This paragraph has right to left text. Some characters may need to be mirrored.
+ // TODO: consider if the mirrored string can be stored as well.
+
+ textMirrored = GetMirroredText( utf32Characters,
+ directions,
+ bidirectionalInfo,
+ startIndex,
+ requestedNumberOfCharacters,
+ mirroredUtf32Characters );
+ }
+ else
+ {
+ // There is no right to left characters. Clear the directions vector.
+ mLogicalModel->mCharacterDirections.Clear();
+ }
+ updated = true;
+ }
+
+ Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
+ Vector<CharacterIndex>& glyphsToCharactersMap = mVisualModel->mGlyphsToCharacters;
+ Vector<Length>& charactersPerGlyph = mVisualModel->mCharactersPerGlyph;
+ Vector<GlyphIndex> newParagraphGlyphs;
+ newParagraphGlyphs.Reserve( numberOfParagraphs );
+
+ const Length currentNumberOfGlyphs = glyphs.Count();
+ if( NO_OPERATION != ( SHAPE_TEXT & operations ) )
+ {
+ const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
+ // Shapes the text.
+ ShapeText( textToShape,
+ lineBreakInfo,
+ scripts,
+ validFonts,
+ startIndex,
+ mTextUpdateInfo.mStartGlyphIndex,
+ requestedNumberOfCharacters,
+ glyphs,
+ glyphsToCharactersMap,
+ charactersPerGlyph,
+ newParagraphGlyphs );
+
+ // Create the 'number of glyphs' per character and the glyph to character conversion tables.
+ mVisualModel->CreateGlyphsPerCharacterTable( startIndex, mTextUpdateInfo.mStartGlyphIndex, requestedNumberOfCharacters );
+ mVisualModel->CreateCharacterToGlyphTable( startIndex, mTextUpdateInfo.mStartGlyphIndex, requestedNumberOfCharacters );
+ updated = true;
+ }
+
+ const Length numberOfGlyphs = glyphs.Count() - currentNumberOfGlyphs;
+
+ if( NO_OPERATION != ( GET_GLYPH_METRICS & operations ) )
+ {
+ GlyphInfo* glyphsBuffer = glyphs.Begin();
+ mMetrics->GetGlyphMetrics( glyphsBuffer + mTextUpdateInfo.mStartGlyphIndex, numberOfGlyphs );
+
+ // Update the width and advance of all new paragraph characters.
+ for( Vector<GlyphIndex>::ConstIterator it = newParagraphGlyphs.Begin(), endIt = newParagraphGlyphs.End(); it != endIt; ++it )
+ {
+ const GlyphIndex index = *it;
+ GlyphInfo& glyph = *( glyphsBuffer + index );
+
+ glyph.xBearing = 0.f;
+ glyph.width = 0.f;
+ glyph.advance = 0.f;
+ }
+ updated = true;
+ }
+
+ if( NO_OPERATION != ( COLOR & operations ) )
+ {
+ // Set the color runs in glyphs.
+ SetColorSegmentationInfo( mLogicalModel->mColorRuns,
+ mVisualModel->mCharactersToGlyph,
+ mVisualModel->mGlyphsPerCharacter,
+ startIndex,
+ mTextUpdateInfo.mStartGlyphIndex,
+ requestedNumberOfCharacters,
+ mVisualModel->mColors,
+ mVisualModel->mColorIndices );
+
+ updated = true;
+ }
+
+ if( ( NULL != mEventData ) &&
+ mEventData->mPreEditFlag &&
+ ( 0u != mVisualModel->mCharactersToGlyph.Count() ) )
+ {
+ // Add the underline for the pre-edit text.
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+
+ const GlyphIndex glyphStart = *( charactersToGlyphBuffer + mEventData->mPreEditStartPosition );
+ const CharacterIndex lastPreEditCharacter = mEventData->mPreEditStartPosition + ( ( mEventData->mPreEditLength > 0u ) ? mEventData->mPreEditLength - 1u : 0u );
+ const Length numberOfGlyphsLastCharacter = *( glyphsPerCharacterBuffer + lastPreEditCharacter );
+ const GlyphIndex glyphEnd = *( charactersToGlyphBuffer + lastPreEditCharacter ) + ( numberOfGlyphsLastCharacter > 1u ? numberOfGlyphsLastCharacter - 1u : 0u );
+
+ GlyphRun underlineRun;
+ underlineRun.glyphIndex = glyphStart;
+ underlineRun.numberOfGlyphs = 1u + glyphEnd - glyphStart;
+
+ // TODO: At the moment the underline runs are only for pre-edit.
+ mVisualModel->mUnderlineRuns.PushBack( underlineRun );
+ }
+
+ // The estimated number of lines. Used to avoid reallocations when layouting.
+ mTextUpdateInfo.mEstimatedNumberOfLines = std::max( mVisualModel->mLines.Count(), mLogicalModel->mParagraphInfo.Count() );
+
+ // Set the previous number of characters for the next time the text is updated.
+ mTextUpdateInfo.mPreviousNumberOfCharacters = numberOfCharacters;
+
+ return updated;
+}
+
+void Controller::Impl::RetrieveDefaultInputStyle( InputStyle& inputStyle )
+{
+ // Sets the default text's color.
+ inputStyle.textColor = mTextColor;
+ inputStyle.isDefaultColor = true;
+
+ inputStyle.familyName.clear();
+ inputStyle.weight = TextAbstraction::FontWeight::NORMAL;
+ inputStyle.width = TextAbstraction::FontWidth::NORMAL;
+ inputStyle.slant = TextAbstraction::FontSlant::NORMAL;
+ inputStyle.size = 0.f;
+
+ inputStyle.familyDefined = false;
+ inputStyle.weightDefined = false;
+ inputStyle.widthDefined = false;
+ inputStyle.slantDefined = false;
+ inputStyle.sizeDefined = false;
+
+ // Sets the default font's family name, weight, width, slant and size.
+ if( mFontDefaults )
+ {
+ if( mFontDefaults->familyDefined )
+ {
+ inputStyle.familyName = mFontDefaults->mFontDescription.family;
+ inputStyle.familyDefined = true;
+ }
+
+ if( mFontDefaults->weightDefined )
+ {
+ inputStyle.weight = mFontDefaults->mFontDescription.weight;
+ inputStyle.weightDefined = true;
+ }
+
+ if( mFontDefaults->widthDefined )
+ {
+ inputStyle.width = mFontDefaults->mFontDescription.width;
+ inputStyle.widthDefined = true;
+ }
+
+ if( mFontDefaults->slantDefined )
+ {
+ inputStyle.slant = mFontDefaults->mFontDescription.slant;
+ inputStyle.slantDefined = true;
+ }
+
+ if( mFontDefaults->sizeDefined )
+ {
+ inputStyle.size = mFontDefaults->mDefaultPointSize;
+ inputStyle.sizeDefined = true;
+ }
+ }
+}
+
+float Controller::Impl::GetDefaultFontLineHeight()
+{
+ FontId defaultFontId = 0u;
+ if( NULL == mFontDefaults )
+ {
+ TextAbstraction::FontDescription fontDescription;
+ defaultFontId = mFontClient.GetFontId( fontDescription );
+ }
+ else
+ {
+ defaultFontId = mFontDefaults->GetFontId( mFontClient );
+ }
+
+ Text::FontMetrics fontMetrics;
+ mMetrics->GetFontMetrics( defaultFontId, fontMetrics );
+
+ return( fontMetrics.ascender - fontMetrics.descender );
+}
+
+void Controller::Impl::OnCursorKeyEvent( const Event& event )
{
if( NULL == mEventData )
{
return;
}
- int state = event.p1.mInt;
+ int keyCode = event.p1.mInt;
+
+ if( Dali::DALI_KEY_CURSOR_LEFT == keyCode )
+ {
+ if( mEventData->mPrimaryCursorPosition > 0u )
+ {
+ mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition - 1u );
+ }
+ }
+ else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
+ {
+ if( mLogicalModel->mText.Count() > mEventData->mPrimaryCursorPosition )
+ {
+ mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition );
+ }
+ }
+ else if( Dali::DALI_KEY_CURSOR_UP == keyCode )
+ {
+ // Get first the line index of the current cursor position index.
+ CharacterIndex characterIndex = 0u;
+
+ if( mEventData->mPrimaryCursorPosition > 0u )
+ {
+ characterIndex = mEventData->mPrimaryCursorPosition - 1u;
+ }
+
+ const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( characterIndex );
- if( Gesture::Started == state ||
- Gesture::Continuing == state )
+ if( lineIndex > 0u )
+ {
+ // Retrieve the cursor position info.
+ CursorInfo cursorInfo;
+ GetCursorPosition( mEventData->mPrimaryCursorPosition,
+ cursorInfo );
+
+ // Get the line above.
+ const LineRun& line = *( mVisualModel->mLines.Begin() + ( lineIndex - 1u ) );
+
+ // Get the next hit 'y' point.
+ const float hitPointY = cursorInfo.lineOffset - 0.5f * ( line.ascender - line.descender );
+
+ // Use the cursor hook position 'x' and the next hit 'y' position to calculate the new cursor index.
+ mEventData->mPrimaryCursorPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ mEventData->mCursorHookPositionX,
+ hitPointY );
+ }
+ }
+ else if( Dali::DALI_KEY_CURSOR_DOWN == keyCode )
{
- const Vector2& actualSize = mVisualModel->GetActualSize();
- const Vector2 currentScroll = mEventData->mScrollPosition;
+ // Get first the line index of the current cursor position index.
+ CharacterIndex characterIndex = 0u;
- if( mEventData->mHorizontalScrollingEnabled )
+ if( mEventData->mPrimaryCursorPosition > 0u )
{
- const float displacementX = event.p2.mFloat;
- mEventData->mScrollPosition.x += displacementX;
+ characterIndex = mEventData->mPrimaryCursorPosition - 1u;
+ }
+
+ const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( characterIndex );
- ClampHorizontalScroll( actualSize );
+ if( lineIndex + 1u < mVisualModel->mLines.Count() )
+ {
+ // Retrieve the cursor position info.
+ CursorInfo cursorInfo;
+ GetCursorPosition( mEventData->mPrimaryCursorPosition,
+ cursorInfo );
+
+ // Get the line below.
+ const LineRun& line = *( mVisualModel->mLines.Begin() + lineIndex + 1u );
+
+ // Get the next hit 'y' point.
+ const float hitPointY = cursorInfo.lineOffset + cursorInfo.lineHeight + 0.5f * ( line.ascender - line.descender );
+
+ // Use the cursor hook position 'x' and the next hit 'y' position to calculate the new cursor index.
+ mEventData->mPrimaryCursorPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ mEventData->mCursorHookPositionX,
+ hitPointY );
}
+ }
+
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mUpdateInputStyle = true;
+ mEventData->mScrollAfterUpdatePosition = true;
+}
+
+void Controller::Impl::OnTapEvent( const Event& event )
+{
+ if( NULL != mEventData )
+ {
+ const unsigned int tapCount = event.p1.mUint;
- if( mEventData->mVerticalScrollingEnabled )
+ if( 1u == tapCount )
{
- const float displacementY = event.p3.mFloat;
- mEventData->mScrollPosition.y += displacementY;
+ if( IsShowingRealText() )
+ {
+ // Convert from control's coords to text's coords.
+ const float xPosition = event.p2.mFloat - mScrollPosition.x;
+ const float yPosition = event.p3.mFloat - mScrollPosition.y;
+
+ // Keep the tap 'x' position. Used to move the cursor.
+ mEventData->mCursorHookPositionX = xPosition;
+
+ mEventData->mPrimaryCursorPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
+
+ // When the cursor position is changing, delay cursor blinking
+ mEventData->mDecorator->DelayCursorBlink();
+ }
+ else
+ {
+ mEventData->mPrimaryCursorPosition = 0u;
+ }
+
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mUpdateGrabHandlePosition = true;
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mUpdateInputStyle = true;
+
+ // Notify the cursor position to the imf manager.
+ if( mEventData->mImfManager )
+ {
+ mEventData->mImfManager.SetCursorPosition( mEventData->mPrimaryCursorPosition );
+ mEventData->mImfManager.NotifyCursorPosition();
+ }
+ }
+ }
+}
+
+void Controller::Impl::OnPanEvent( const Event& event )
+{
+ if( NULL == mEventData )
+ {
+ // Nothing to do if there is no text input.
+ return;
+ }
+
+ const bool isHorizontalScrollEnabled = mEventData->mDecorator->IsHorizontalScrollEnabled();
+ const bool isVerticalScrollEnabled = mEventData->mDecorator->IsVerticalScrollEnabled();
+
+ if( !isHorizontalScrollEnabled && !isVerticalScrollEnabled )
+ {
+ // Nothing to do if scrolling is not enabled.
+ return;
+ }
+
+ const int state = event.p1.mInt;
- ClampVerticalScroll( actualSize );
+ switch( state )
+ {
+ case Gesture::Started:
+ {
+ // Will remove the cursor, handles or text's popup, ...
+ ChangeState( EventData::TEXT_PANNING );
+ break;
}
+ case Gesture::Continuing:
+ {
+ const Vector2& layoutSize = mVisualModel->GetLayoutSize();
+ const Vector2 currentScroll = mScrollPosition;
+
+ if( isHorizontalScrollEnabled )
+ {
+ const float displacementX = event.p2.mFloat;
+ mScrollPosition.x += displacementX;
+
+ ClampHorizontalScroll( layoutSize );
+ }
+
+ if( isVerticalScrollEnabled )
+ {
+ const float displacementY = event.p3.mFloat;
+ mScrollPosition.y += displacementY;
- if( mEventData->mDecorator )
+ ClampVerticalScroll( layoutSize );
+ }
+
+ mEventData->mDecorator->UpdatePositions( mScrollPosition - currentScroll );
+ break;
+ }
+ case Gesture::Finished:
+ case Gesture::Cancelled: // FALLTHROUGH
{
- mEventData->mDecorator->UpdatePositions( mEventData->mScrollPosition - currentScroll );
+ // Will go back to the previous state to show the cursor, handles, the text's popup, ...
+ ChangeState( mEventData->mPreviousState );
+ break;
}
+ default:
+ break;
+ }
+}
+
+void Controller::Impl::OnLongPressEvent( const Event& event )
+{
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::OnLongPressEvent\n" );
+
+ if( EventData::EDITING == mEventData->mState )
+ {
+ ChangeState ( EventData::EDITING_WITH_POPUP );
+ mEventData->mDecoratorUpdated = true;
}
}
const unsigned int state = event.p1.mUint;
const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state );
+ const bool isSmoothHandlePanEnabled = mEventData->mDecorator->IsSmoothHandlePanEnabled();
if( HANDLE_PRESSED == state )
{
- // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
- const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
- const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+ // Convert from decorator's coords to text's coords.
+ const float xPosition = event.p2.mFloat - mScrollPosition.x;
+ const float yPosition = event.p3.mFloat - mScrollPosition.y;
- const CharacterIndex handleNewPosition = GetClosestCursorIndex( xPosition, yPosition );
+ // Need to calculate the handle's new position.
+ const CharacterIndex handleNewPosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
if( Event::GRAB_HANDLE_EVENT == event.type )
{
if( handleNewPosition != mEventData->mPrimaryCursorPosition )
{
- mEventData->mPrimaryCursorPosition = handleNewPosition;
+ // Updates the cursor position if the handle's new position is different than the current one.
mEventData->mUpdateCursorPosition = true;
+ // Does not update the grab handle position if the smooth panning is enabled. (The decorator does it smooth).
+ mEventData->mUpdateGrabHandlePosition = !isSmoothHandlePanEnabled;
+ mEventData->mPrimaryCursorPosition = handleNewPosition;
}
+
+ // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
+ mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
}
else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
{
ChangeState ( EventData::SELECTION_HANDLE_PANNING );
- if( handleNewPosition != mEventData->mLeftSelectionPosition )
+ if( ( handleNewPosition != mEventData->mLeftSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mRightSelectionPosition ) )
{
+ // Updates the highlight box if the handle's new position is different than the current one.
+ mEventData->mUpdateHighlightBox = true;
+ // Does not update the selection handle position if the smooth panning is enabled. (The decorator does it smooth).
+ mEventData->mUpdateLeftSelectionPosition = !isSmoothHandlePanEnabled;
mEventData->mLeftSelectionPosition = handleNewPosition;
+ }
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
+ // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
+ mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
- mEventData->mUpdateLeftSelectionPosition = true;
- }
+ // Will define the order to scroll the text to match the handle position.
+ mEventData->mIsLeftHandleSelected = true;
}
else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
{
ChangeState ( EventData::SELECTION_HANDLE_PANNING );
- if( handleNewPosition != mEventData->mRightSelectionPosition )
+ if( ( handleNewPosition != mEventData->mRightSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mLeftSelectionPosition ) )
{
+ // Updates the highlight box if the handle's new position is different than the current one.
+ mEventData->mUpdateHighlightBox = true;
+ // Does not update the selection handle position if the smooth panning is enabled. (The decorator does it smooth).
+ mEventData->mUpdateRightSelectionPosition = !isSmoothHandlePanEnabled;
mEventData->mRightSelectionPosition = handleNewPosition;
+ }
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
+ // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
+ mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
- mEventData->mUpdateRightSelectionPosition = true;
- }
+ // Will define the order to scroll the text to match the handle position.
+ mEventData->mIsLeftHandleSelected = false;
}
} // end ( HANDLE_PRESSED == state )
else if( ( HANDLE_RELEASED == state ) ||
handleStopScrolling )
{
CharacterIndex handlePosition = 0u;
- if( handleStopScrolling )
+ if( handleStopScrolling || isSmoothHandlePanEnabled )
{
- // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
- 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 );
+ // Convert from decorator's coords to text's coords.
+ const float xPosition = event.p2.mFloat - mScrollPosition.x;
+ const float yPosition = event.p3.mFloat - mScrollPosition.y;
+
+ handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ xPosition,
+ yPosition );
}
if( Event::GRAB_HANDLE_EVENT == event.type )
{
mEventData->mUpdateCursorPosition = true;
+ mEventData->mUpdateGrabHandlePosition = true;
+ mEventData->mUpdateInputStyle = true;
- ChangeState( EventData::EDITING_WITH_POPUP );
+ if( !IsClipboardEmpty() )
+ {
+ ChangeState( EventData::EDITING_WITH_PASTE_POPUP ); // Moving grabhandle will show Paste Popup
+ }
- if( handleStopScrolling )
+ if( handleStopScrolling || isSmoothHandlePanEnabled )
{
- mEventData->mScrollAfterUpdatePosition = mEventData->mPrimaryCursorPosition != handlePosition;
+ mEventData->mScrollAfterUpdatePosition = true;
mEventData->mPrimaryCursorPosition = handlePosition;
}
}
{
ChangeState( EventData::SELECTING );
- if( handleStopScrolling )
+ mEventData->mUpdateHighlightBox = true;
+ mEventData->mUpdateLeftSelectionPosition = true;
+ mEventData->mUpdateRightSelectionPosition = true;
+
+ if( handleStopScrolling || isSmoothHandlePanEnabled )
{
- mEventData->mUpdateLeftSelectionPosition = mEventData->mLeftSelectionPosition != handlePosition;
- mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition;
- mEventData->mLeftSelectionPosition = handlePosition;
+ mEventData->mScrollAfterUpdatePosition = true;
- if( mEventData->mUpdateLeftSelectionPosition )
+ if( ( handlePosition != mEventData->mRightSelectionPosition ) &&
+ ( handlePosition != mEventData->mLeftSelectionPosition ) )
{
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
+ mEventData->mLeftSelectionPosition = handlePosition;
}
}
}
{
ChangeState( EventData::SELECTING );
- if( handleStopScrolling )
+ mEventData->mUpdateHighlightBox = true;
+ mEventData->mUpdateRightSelectionPosition = true;
+ mEventData->mUpdateLeftSelectionPosition = true;
+
+ if( handleStopScrolling || isSmoothHandlePanEnabled )
+ {
+ mEventData->mScrollAfterUpdatePosition = true;
+ if( ( handlePosition != mEventData->mRightSelectionPosition ) &&
+ ( handlePosition != mEventData->mLeftSelectionPosition ) )
+ {
+ mEventData->mRightSelectionPosition = handlePosition;
+ }
+ }
+ }
+
+ mEventData->mDecoratorUpdated = true;
+ } // end ( ( HANDLE_RELEASED == state ) || ( HANDLE_STOP_SCROLLING == state ) )
+ else if( HANDLE_SCROLLING == state )
+ {
+ const float xSpeed = event.p2.mFloat;
+ const float ySpeed = event.p3.mFloat;
+ const Vector2& layoutSize = mVisualModel->GetLayoutSize();
+ const Vector2 currentScrollPosition = mScrollPosition;
+
+ mScrollPosition.x += xSpeed;
+ mScrollPosition.y += ySpeed;
+
+ ClampHorizontalScroll( layoutSize );
+ ClampVerticalScroll( layoutSize );
+
+ bool endOfScroll = false;
+ if( Vector2::ZERO == ( currentScrollPosition - mScrollPosition ) )
+ {
+ // Notify the decorator there is no more text to scroll.
+ // The decorator won't send more scroll events.
+ mEventData->mDecorator->NotifyEndOfScroll();
+ // Still need to set the position of the handle.
+ endOfScroll = true;
+ }
+
+ // Set the position of the handle.
+ const bool scrollRightDirection = xSpeed > 0.f;
+ const bool scrollBottomDirection = ySpeed > 0.f;
+ const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
+ const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
+
+ if( Event::GRAB_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::GRAB_HANDLE_PANNING );
+
+ // Get the grab handle position in decorator coords.
+ Vector2 position = mEventData->mDecorator->GetPosition( GRAB_HANDLE );
+
+ if( mEventData->mDecorator->IsHorizontalScrollEnabled() )
+ {
+ // Position the grag handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width;
+ }
+
+ if( mEventData->mDecorator->IsVerticalScrollEnabled() )
+ {
+ position.x = mEventData->mCursorHookPositionX;
+
+ // Position the grag handle close to either the top or bottom edge.
+ position.y = scrollBottomDirection ? 0.f : mVisualModel->mControlSize.height;
+ }
+
+ // Get the new handle position.
+ // The grab handle's position is in decorator's coords. Need to transforms to text's coords.
+ const CharacterIndex handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ position.x - mScrollPosition.x,
+ position.y - mScrollPosition.y );
+
+ if( mEventData->mPrimaryCursorPosition != handlePosition )
+ {
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mUpdateGrabHandlePosition = !isSmoothHandlePanEnabled;
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mPrimaryCursorPosition = handlePosition;
+ }
+ mEventData->mUpdateInputStyle = mEventData->mUpdateCursorPosition;
+
+ // Updates the decorator if the soft handle panning is enabled.
+ mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
+ }
+ else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
+ {
+ ChangeState( EventData::SELECTION_HANDLE_PANNING );
+
+ // Get the selection handle position in decorator coords.
+ Vector2 position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+
+ if( mEventData->mDecorator->IsHorizontalScrollEnabled() )
{
- mEventData->mUpdateRightSelectionPosition = mEventData->mRightSelectionPosition != handlePosition;
- mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition;
- mEventData->mRightSelectionPosition = handlePosition;
+ // Position the selection handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width;
+ }
- if( mEventData->mUpdateRightSelectionPosition )
+ if( mEventData->mDecorator->IsVerticalScrollEnabled() )
+ {
+ position.x = mEventData->mCursorHookPositionX;
+
+ // Position the grag handle close to either the top or bottom edge.
+ position.y = scrollBottomDirection ? 0.f : mVisualModel->mControlSize.height;
+ }
+
+ // Get the new handle position.
+ // The selection handle's position is in decorator's coords. Need to transform to text's coords.
+ const CharacterIndex handlePosition = Text::GetClosestCursorIndex( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ position.x - mScrollPosition.x,
+ position.y - mScrollPosition.y );
+
+ if( leftSelectionHandleEvent )
+ {
+ const bool differentHandles = ( mEventData->mLeftSelectionPosition != handlePosition ) && ( mEventData->mRightSelectionPosition != handlePosition );
+
+ if( differentHandles || endOfScroll )
+ {
+ mEventData->mUpdateHighlightBox = true;
+ mEventData->mUpdateLeftSelectionPosition = !isSmoothHandlePanEnabled;
+ mEventData->mUpdateRightSelectionPosition = isSmoothHandlePanEnabled;
+ mEventData->mLeftSelectionPosition = handlePosition;
+ }
+ }
+ else
+ {
+ const bool differentHandles = ( mEventData->mRightSelectionPosition != handlePosition ) && ( mEventData->mLeftSelectionPosition != handlePosition );
+ if( differentHandles || endOfScroll )
{
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
+ mEventData->mUpdateHighlightBox = true;
+ mEventData->mUpdateRightSelectionPosition = !isSmoothHandlePanEnabled;
+ mEventData->mUpdateLeftSelectionPosition = isSmoothHandlePanEnabled;
+ mEventData->mRightSelectionPosition = handlePosition;
}
}
+
+ if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
+ {
+ RepositionSelectionHandles();
+
+ mEventData->mScrollAfterUpdatePosition = !isSmoothHandlePanEnabled;
+ }
}
+ mEventData->mDecoratorUpdated = true;
+ } // end ( HANDLE_SCROLLING == state )
+}
+
+void Controller::Impl::OnSelectEvent( const Event& event )
+{
+ if( NULL == mEventData )
+ {
+ // Nothing to do if there is no text.
+ return;
+ }
+
+ if( mEventData->mSelectionEnabled )
+ {
+ // Convert from control's coords to text's coords.
+ const float xPosition = event.p2.mFloat - mScrollPosition.x;
+ const float yPosition = event.p3.mFloat - mScrollPosition.y;
+
+ // Calculates the logical position from the x,y coords.
+ RepositionSelectionHandles( xPosition,
+ yPosition );
+ }
+}
+
+void Controller::Impl::OnSelectAllEvent()
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "OnSelectAllEvent mEventData->mSelectionEnabled%s \n", mEventData->mSelectionEnabled?"true":"false");
+
+ if( NULL == mEventData )
+ {
+ // Nothing to do if there is no text.
+ return;
+ }
+
+ if( mEventData->mSelectionEnabled )
+ {
+ ChangeState( EventData::SELECTING );
+
+ mEventData->mLeftSelectionPosition = 0u;
+ mEventData->mRightSelectionPosition = mLogicalModel->mText.Count();
+
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mUpdateLeftSelectionPosition = true;
+ mEventData->mUpdateRightSelectionPosition = true;
+ mEventData->mUpdateHighlightBox = true;
+ }
+}
+
+void Controller::Impl::RetrieveSelection( std::string& selectedText, bool deleteAfterRetrieval )
+{
+ if( mEventData->mLeftSelectionPosition == mEventData->mRightSelectionPosition )
+ {
+ // Nothing to select if handles are in the same place.
+ selectedText.clear();
+ return;
+ }
+
+ const bool handlesCrossed = mEventData->mLeftSelectionPosition > mEventData->mRightSelectionPosition;
- mEventData->mDecoratorUpdated = true;
- } // end ( ( HANDLE_RELEASED == state ) || ( HANDLE_STOP_SCROLLING == state ) )
- else if( HANDLE_SCROLLING == state )
+ //Get start and end position of selection
+ const CharacterIndex startOfSelectedText = handlesCrossed ? mEventData->mRightSelectionPosition : mEventData->mLeftSelectionPosition;
+ const Length lengthOfSelectedText = ( handlesCrossed ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition ) - startOfSelectedText;
+
+ Vector<Character>& utf32Characters = mLogicalModel->mText;
+ const Length numberOfCharacters = utf32Characters.Count();
+
+ // Validate the start and end selection points
+ if( ( startOfSelectedText + lengthOfSelectedText ) <= numberOfCharacters )
{
- const float xSpeed = event.p2.mFloat;
- const Vector2& actualSize = mVisualModel->GetActualSize();
+ //Get text as a UTF8 string
+ Utf32ToUtf8( &utf32Characters[startOfSelectedText], lengthOfSelectedText, selectedText );
- mEventData->mScrollPosition.x += xSpeed;
+ if( deleteAfterRetrieval ) // Only delete text if copied successfully
+ {
+ // Set as input style the style of the first deleted character.
+ mLogicalModel->RetrieveStyle( startOfSelectedText, mEventData->mInputStyle );
- ClampHorizontalScroll( actualSize );
+ mLogicalModel->UpdateTextStyleRuns( startOfSelectedText, -static_cast<int>( lengthOfSelectedText ) );
- const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
- const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
+ // Mark the paragraphs to be updated.
+ mTextUpdateInfo.mCharacterIndex = startOfSelectedText;
+ mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText;
- if( Event::GRAB_HANDLE_EVENT == event.type )
- {
- ChangeState( EventData::GRAB_HANDLE_PANNING );
+ // Delete text between handles
+ Vector<Character>::Iterator first = utf32Characters.Begin() + startOfSelectedText;
+ Vector<Character>::Iterator last = first + lengthOfSelectedText;
+ utf32Characters.Erase( first, last );
+
+ // Will show the cursor at the first character of the selection.
+ mEventData->mPrimaryCursorPosition = handlesCrossed ? mEventData->mRightSelectionPosition : mEventData->mLeftSelectionPosition;
}
- else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
+ else
{
- // TODO: This is recalculating the selection box every time the text is scrolled with the selection handles.
- // Think if something can be done to save power.
+ // Will show the cursor at the last character of the selection.
+ mEventData->mPrimaryCursorPosition = handlesCrossed ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition;
+ }
- ChangeState( EventData::SELECTION_HANDLE_PANNING );
+ mEventData->mDecoratorUpdated = true;
+ }
+}
- const Vector2& position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+void Controller::Impl::ShowClipboard()
+{
+ if( mClipboard )
+ {
+ mClipboard.ShowClipboard();
+ }
+}
- // 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 );
+void Controller::Impl::HideClipboard()
+{
+ if( mClipboard && mClipboardHideEnabled )
+ {
+ mClipboard.HideClipboard();
+ }
+}
- if( leftSelectionHandleEvent )
- {
- mEventData->mUpdateLeftSelectionPosition = handlePosition != mEventData->mLeftSelectionPosition;
- mEventData->mLeftSelectionPosition = handlePosition;
- }
- else
- {
- mEventData->mUpdateRightSelectionPosition = handlePosition != mEventData->mRightSelectionPosition;
- mEventData->mRightSelectionPosition = handlePosition;
- }
+void Controller::Impl::SetClipboardHideEnable(bool enable)
+{
+ mClipboardHideEnabled = enable;
+}
- if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
- {
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
- }
- }
- mEventData->mDecoratorUpdated = true;
- } // end ( HANDLE_SCROLLING == state )
+bool Controller::Impl::CopyStringToClipboard( std::string& source )
+{
+ //Send string to clipboard
+ return ( mClipboard && mClipboard.SetItem( source ) );
+}
+
+void Controller::Impl::SendSelectionToClipboard( bool deleteAfterSending )
+{
+ std::string selectedText;
+ RetrieveSelection( selectedText, deleteAfterSending );
+ CopyStringToClipboard( selectedText );
+ ChangeState( EventData::EDITING );
+}
+
+void Controller::Impl::GetTextFromClipboard( unsigned int itemIndex, std::string& retrievedString )
+{
+ if ( mClipboard )
+ {
+ retrievedString = mClipboard.GetItem( itemIndex );
+ }
}
-void Controller::Impl::RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd )
+void Controller::Impl::RepositionSelectionHandles()
{
+ CharacterIndex selectionStart = mEventData->mLeftSelectionPosition;
+ CharacterIndex selectionEnd = mEventData->mRightSelectionPosition;
+
if( selectionStart == selectionEnd )
{
// Nothing to select if handles are in the same place.
mEventData->mDecorator->ClearHighlights();
- mEventData->mLeftSelectionPosition = selectionStart;
- mEventData->mRightSelectionPosition = selectionEnd;
-
const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
const GlyphInfo* const glyphsBuffer = mVisualModel->mGlyphs.Begin();
const Vector2* const positionsBuffer = mVisualModel->mGlyphPositions.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ const CharacterIndex* const glyphToCharacterBuffer = mVisualModel->mGlyphsToCharacters.Begin();
+ const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
+
+ const bool isLastCharacter = selectionEnd >= mLogicalModel->mText.Count();
+ const CharacterDirection startDirection = ( ( NULL == modelCharacterDirectionsBuffer ) ? false : *( modelCharacterDirectionsBuffer + selectionStart ) );
+ const CharacterDirection endDirection = ( ( NULL == modelCharacterDirectionsBuffer ) ? false : *( modelCharacterDirectionsBuffer + ( selectionEnd - ( isLastCharacter ? 1u : 0u ) ) ) );
- // TODO: Better algorithm to create the highlight box.
- // TODO: Multi-line.
+ // Swap the indices if the start is greater than the end.
+ const bool indicesSwapped = selectionStart > selectionEnd;
- const Vector<LineRun>& lines = mVisualModel->mLines;
- const LineRun& firstLine = *lines.Begin();
- const float height = firstLine.ascender + -firstLine.descender;
+ // Tell the decorator to flip the selection handles if needed.
+ mEventData->mDecorator->SetSelectionHandleFlipState( indicesSwapped, startDirection, endDirection );
- const bool indicesSwapped = ( selectionStart > selectionEnd );
if( indicesSwapped )
{
std::swap( selectionStart, selectionEnd );
}
- GlyphIndex glyphStart = *( charactersToGlyphBuffer + selectionStart );
- GlyphIndex glyphEnd = *( charactersToGlyphBuffer + ( selectionEnd - 1u ) ) + *( glyphsPerCharacterBuffer + ( selectionEnd - 1u ) ) - 1u;
+ // Get the indices to the first and last selected glyphs.
+ const CharacterIndex selectionEndMinusOne = selectionEnd - 1u;
+ const GlyphIndex glyphStart = *( charactersToGlyphBuffer + selectionStart );
+ const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + selectionEndMinusOne );
+ const GlyphIndex glyphEnd = *( charactersToGlyphBuffer + selectionEndMinusOne ) + ( ( numberOfGlyphs > 0 ) ? numberOfGlyphs - 1u : 0u );
- mEventData->mDecorator->SwapSelectionHandlesEnabled( firstLine.direction != indicesSwapped );
+ // Get the lines where the glyphs are laid-out.
+ const LineRun* lineRun = mVisualModel->mLines.Begin();
- const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+ LineIndex lineIndex = 0u;
+ Length numberOfLines = 0u;
+ mVisualModel->GetNumberOfLines( glyphStart,
+ 1u + glyphEnd - glyphStart,
+ lineIndex,
+ numberOfLines );
+ const LineIndex firstLineIndex = lineIndex;
- for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
- {
- const GlyphInfo& glyph = *( glyphsBuffer + index );
- const Vector2& position = *( positionsBuffer + index );
+ // Create the structure to store some selection box info.
+ Vector<SelectionBoxInfo> selectionBoxLinesInfo;
+ selectionBoxLinesInfo.Resize( numberOfLines );
- const float xPosition = position.x - glyph.xBearing + offset.x;
- mEventData->mDecorator->AddHighlight( xPosition, offset.y, xPosition + glyph.advance, height );
- }
+ SelectionBoxInfo* selectionBoxInfo = selectionBoxLinesInfo.Begin();
+ selectionBoxInfo->minX = MAX_FLOAT;
+ selectionBoxInfo->maxX = MIN_FLOAT;
- CursorInfo primaryCursorInfo;
- GetCursorPosition( mEventData->mLeftSelectionPosition,
- primaryCursorInfo );
+ // Keep the min and max 'x' position to calculate the size and position of the highlighed text.
+ float minHighlightX = std::numeric_limits<float>::max();
+ float maxHighlightX = std::numeric_limits<float>::min();
+ Size highLightSize;
+ Vector2 highLightPosition; // The highlight position in decorator's coords.
- CursorInfo secondaryCursorInfo;
- GetCursorPosition( mEventData->mRightSelectionPosition,
- secondaryCursorInfo );
+ // Retrieve the first line and get the line's vertical offset, the line's height and the index to the last glyph.
- const Vector2 primaryPosition = primaryCursorInfo.primaryPosition + offset;
- const Vector2 secondaryPosition = secondaryCursorInfo.primaryPosition + offset;
+ // The line's vertical offset of all the lines before the line where the first glyph is laid-out.
+ selectionBoxInfo->lineOffset = CalculateLineOffset( mVisualModel->mLines,
+ firstLineIndex );
- mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, primaryPosition.x, primaryPosition.y, primaryCursorInfo.lineHeight );
+ // Transform to decorator's (control) coords.
+ selectionBoxInfo->lineOffset += mScrollPosition.y;
- mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryPosition.x, secondaryPosition.y, secondaryCursorInfo.lineHeight );
+ lineRun += firstLineIndex;
- // Set the flag to update the decorator.
- mEventData->mDecoratorUpdated = true;
-}
+ // The line height is the addition of the line ascender and the line descender.
+ // However, the line descender has a negative value, hence the subtraction.
+ selectionBoxInfo->lineHeight = lineRun->ascender - lineRun->descender;
-void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
-{
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return;
- }
+ GlyphIndex lastGlyphOfLine = lineRun->glyphRun.glyphIndex + lineRun->glyphRun.numberOfGlyphs - 1u;
- if( IsShowingPlaceholderText() )
- {
- // Nothing to do if there is the place-holder text.
- return;
- }
+ // Check if the first glyph is a ligature that must be broken like Latin ff, fi, or Arabic ﻻ, etc which needs special code.
+ const Length numberOfCharactersStart = *( charactersPerGlyphBuffer + glyphStart );
+ bool splitStartGlyph = ( numberOfCharactersStart > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionStart ) );
- const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
- const Length numberOfLines = mVisualModel->mLines.Count();
- if( 0 == numberOfGlyphs ||
- 0 == numberOfLines )
+ // Check if the last glyph is a ligature that must be broken like Latin ff, fi, or Arabic ﻻ, etc which needs special code.
+ const Length numberOfCharactersEnd = *( charactersPerGlyphBuffer + glyphEnd );
+ bool splitEndGlyph = ( glyphStart != glyphEnd ) && ( numberOfCharactersEnd > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionEndMinusOne ) );
+
+ // Traverse the glyphs.
+ for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
{
- // Nothing to do if there is no text.
- return;
- }
+ const GlyphInfo& glyph = *( glyphsBuffer + index );
+ const Vector2& position = *( positionsBuffer + index );
- // Find which word was selected
- CharacterIndex selectionStart( 0 );
- CharacterIndex selectionEnd( 0 );
- FindSelectionIndices( visualX, visualY, selectionStart, selectionEnd );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
+ if( splitStartGlyph )
+ {
+ // If the first glyph is a ligature that must be broken it may be needed to add only part of the glyph to the highlight box.
- if( selectionStart == selectionEnd )
- {
- ChangeState( EventData::EDITING );
- // Nothing to select. i.e. a white space, out of bounds
- return;
- }
+ const float glyphAdvance = glyph.advance / static_cast<float>( numberOfCharactersStart );
+ const CharacterIndex interGlyphIndex = selectionStart - *( glyphToCharacterBuffer + glyphStart );
+ // Get the direction of the character.
+ CharacterDirection isCurrentRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
+ {
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + selectionStart );
+ }
- RepositionSelectionHandles( selectionStart, selectionEnd );
-}
+ // The end point could be in the middle of the ligature.
+ // Calculate the number of characters selected.
+ const Length numberOfCharacters = ( glyphStart == glyphEnd ) ? ( selectionEnd - selectionStart ) : ( numberOfCharactersStart - interGlyphIndex );
-void Controller::Impl::ChangeState( EventData::State newState )
-{
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return;
- }
+ const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + glyphAdvance * static_cast<float>( isCurrentRightToLeft ? ( numberOfCharactersStart - interGlyphIndex - numberOfCharacters ) : interGlyphIndex );
+ const float xPositionAdvance = xPosition + static_cast<float>( numberOfCharacters ) * glyphAdvance;
+ const float yPosition = selectionBoxInfo->lineOffset;
- if( mEventData->mState != newState )
- {
- mEventData->mState = newState;
+ // Store the min and max 'x' for each line.
+ selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
+ selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
- if( EventData::INACTIVE == mEventData->mState )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
- mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetPopupActive( false );
- mEventData->mDecoratorUpdated = true;
+ mEventData->mDecorator->AddHighlight( xPosition,
+ yPosition,
+ xPositionAdvance,
+ yPosition + selectionBoxInfo->lineHeight );
+
+ splitStartGlyph = false;
+ continue;
}
- else if ( EventData::SELECTING == mEventData->mState )
+
+ if( splitEndGlyph && ( index == glyphEnd ) )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
- mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
- if( mEventData->mGrabHandlePopupEnabled )
+ // Equally, if the last glyph is a ligature that must be broken it may be needed to add only part of the glyph to the highlight box.
+
+ const float glyphAdvance = glyph.advance / static_cast<float>( numberOfCharactersEnd );
+ const CharacterIndex interGlyphIndex = selectionEnd - *( glyphToCharacterBuffer + glyphEnd );
+ // Get the direction of the character.
+ CharacterDirection isCurrentRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
{
- TextSelectionPopup::Buttons selectedButtons = TextSelectionPopup::Buttons( TextSelectionPopup::COPY );
- mEventData->mDecorator->SetEnabledPopupButtons( selectedButtons );
- mEventData->mDecorator->SetPopupActive( true );
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + selectionEnd );
}
- mEventData->mDecoratorUpdated = true;
+
+ const Length numberOfCharacters = numberOfCharactersEnd - interGlyphIndex;
+
+ const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + ( isCurrentRightToLeft ? ( glyphAdvance * static_cast<float>( numberOfCharacters ) ) : 0.f );
+ const float xPositionAdvance = xPosition + static_cast<float>( interGlyphIndex ) * glyphAdvance;
+ const float yPosition = selectionBoxInfo->lineOffset;
+
+ // Store the min and max 'x' for each line.
+ selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
+ selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
+
+ mEventData->mDecorator->AddHighlight( xPosition,
+ yPosition,
+ xPositionAdvance,
+ yPosition + selectionBoxInfo->lineHeight );
+
+ splitEndGlyph = false;
+ continue;
}
- else if( EventData::EDITING == mEventData->mState )
+
+ const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x;
+ const float xPositionAdvance = xPosition + glyph.advance;
+ const float yPosition = selectionBoxInfo->lineOffset;
+
+ // Store the min and max 'x' for each line.
+ selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
+ selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
+
+ mEventData->mDecorator->AddHighlight( xPosition,
+ yPosition,
+ xPositionAdvance,
+ yPosition + selectionBoxInfo->lineHeight );
+
+ // Whether to retrieve the next line.
+ if( index == lastGlyphOfLine )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- if( mEventData->mCursorBlinkEnabled )
- {
- mEventData->mDecorator->StartCursorBlink();
- }
- // Grab handle is not shown until a tap is received whilst EDITING
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- if( mEventData->mGrabHandlePopupEnabled )
+ // Retrieve the next line.
+ ++lineRun;
+
+ // Get the last glyph of the new line.
+ lastGlyphOfLine = lineRun->glyphRun.glyphIndex + lineRun->glyphRun.numberOfGlyphs - 1u;
+
+ ++lineIndex;
+ if( lineIndex < firstLineIndex + numberOfLines )
{
- mEventData->mDecorator->SetPopupActive( false );
+ // Keep the offset and height of the current selection box.
+ const float currentLineOffset = selectionBoxInfo->lineOffset;
+ const float currentLineHeight = selectionBoxInfo->lineHeight;
+
+ // Get the selection box info for the next line.
+ ++selectionBoxInfo;
+
+ selectionBoxInfo->minX = MAX_FLOAT;
+ selectionBoxInfo->maxX = MIN_FLOAT;
+
+ // Update the line's vertical offset.
+ selectionBoxInfo->lineOffset = currentLineOffset + currentLineHeight;
+
+ // The line height is the addition of the line ascender and the line descender.
+ // However, the line descender has a negative value, hence the subtraction.
+ selectionBoxInfo->lineHeight = lineRun->ascender - lineRun->descender;
}
- mEventData->mDecoratorUpdated = true;
}
- else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
+ }
+
+ // Traverses all the lines and updates the min and max 'x' positions and the total height.
+ // The final width is calculated after 'boxifying' the selection.
+ for( Vector<SelectionBoxInfo>::ConstIterator it = selectionBoxLinesInfo.Begin(),
+ endIt = selectionBoxLinesInfo.End();
+ it != endIt;
+ ++it )
+ {
+ const SelectionBoxInfo& info = *it;
+
+ // Update the size of the highlighted text.
+ highLightSize.height += selectionBoxInfo->lineHeight;
+ minHighlightX = std::min( minHighlightX, info.minX );
+ maxHighlightX = std::max( maxHighlightX, info.maxX );
+ }
+
+ // Add extra geometry to 'boxify' the selection.
+
+ if( 1u < numberOfLines )
+ {
+ // Boxify the first line.
+ lineRun = mVisualModel->mLines.Begin() + firstLineIndex;
+ const SelectionBoxInfo& firstSelectionBoxLineInfo = *( selectionBoxLinesInfo.Begin() );
+
+ bool boxifyBegin = ( LTR != lineRun->direction ) && ( LTR != startDirection );
+ bool boxifyEnd = ( LTR == lineRun->direction ) && ( LTR == startDirection );
+
+ if( boxifyBegin )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- if( mEventData->mCursorBlinkEnabled )
- {
- mEventData->mDecorator->StartCursorBlink();
- }
- if( mEventData->mSelectionEnabled )
- {
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- }
- else
- {
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
- }
- if( mEventData->mGrabHandlePopupEnabled )
- {
- TextSelectionPopup::Buttons selectionButtons = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL );
- mEventData->mDecorator->SetEnabledPopupButtons( selectionButtons );
- mEventData->mDecorator->SetPopupActive( true );
- }
- mEventData->mDecoratorUpdated = true;
+ // Boxify at the beginning of the line.
+ mEventData->mDecorator->AddHighlight( 0.f,
+ firstSelectionBoxLineInfo.lineOffset,
+ firstSelectionBoxLineInfo.minX,
+ firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight );
+
+ // Update the size of the highlighted text.
+ minHighlightX = 0.f;
}
- else if ( EventData::SELECTION_HANDLE_PANNING == mEventData->mState )
+
+ if( boxifyEnd )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
- mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
- if( mEventData->mGrabHandlePopupEnabled )
- {
- mEventData->mDecorator->SetPopupActive( false );
- }
- mEventData->mDecoratorUpdated = true;
+ // Boxify at the end of the line.
+ mEventData->mDecorator->AddHighlight( firstSelectionBoxLineInfo.maxX,
+ firstSelectionBoxLineInfo.lineOffset,
+ mVisualModel->mControlSize.width,
+ firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight );
+
+ // Update the size of the highlighted text.
+ maxHighlightX = mVisualModel->mControlSize.width;
}
- else if ( EventData::GRAB_HANDLE_PANNING == mEventData->mState )
+
+ // Boxify the central lines.
+ if( 2u < numberOfLines )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- if( mEventData->mCursorBlinkEnabled )
- {
- mEventData->mDecorator->StartCursorBlink();
- }
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- if( mEventData->mGrabHandlePopupEnabled )
+ for( Vector<SelectionBoxInfo>::ConstIterator it = selectionBoxLinesInfo.Begin() + 1u,
+ endIt = selectionBoxLinesInfo.End() - 1u;
+ it != endIt;
+ ++it )
{
- mEventData->mDecorator->SetPopupActive( false );
+ const SelectionBoxInfo& info = *it;
+
+ mEventData->mDecorator->AddHighlight( 0.f,
+ info.lineOffset,
+ info.minX,
+ info.lineOffset + info.lineHeight );
+
+ mEventData->mDecorator->AddHighlight( info.maxX,
+ info.lineOffset,
+ mVisualModel->mControlSize.width,
+ info.lineOffset + info.lineHeight );
}
- mEventData->mDecoratorUpdated = true;
+
+ // Update the size of the highlighted text.
+ minHighlightX = 0.f;
+ maxHighlightX = mVisualModel->mControlSize.width;
}
- }
-}
-LineIndex Controller::Impl::GetClosestLine( float y ) const
-{
- float totalHeight = 0.f;
- LineIndex lineIndex = 0u;
+ // Boxify the last line.
+ lineRun = mVisualModel->mLines.Begin() + firstLineIndex + numberOfLines - 1u;
+ const SelectionBoxInfo& lastSelectionBoxLineInfo = *( selectionBoxLinesInfo.End() - 1u );
- 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 )
+ boxifyBegin = ( LTR == lineRun->direction ) && ( LTR == endDirection );
+ boxifyEnd = ( LTR != lineRun->direction ) && ( LTR != endDirection );
+
+ if( boxifyBegin )
{
- return lineIndex;
+ // Boxify at the beginning of the line.
+ mEventData->mDecorator->AddHighlight( 0.f,
+ lastSelectionBoxLineInfo.lineOffset,
+ lastSelectionBoxLineInfo.minX,
+ lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight );
+
+ // Update the size of the highlighted text.
+ minHighlightX = 0.f;
}
- }
- if( lineIndex == 0 )
- {
- return 0;
+ if( boxifyEnd )
+ {
+ // Boxify at the end of the line.
+ mEventData->mDecorator->AddHighlight( lastSelectionBoxLineInfo.maxX,
+ lastSelectionBoxLineInfo.lineOffset,
+ mVisualModel->mControlSize.width,
+ lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight );
+
+ // Update the size of the highlighted text.
+ maxHighlightX = mVisualModel->mControlSize.width;
+ }
}
- return lineIndex-1;
-}
+ // Sets the highlight's size and position. In decorator's coords.
+ // The highlight's height has been calculated above (before 'boxifying' the highlight).
+ highLightSize.width = maxHighlightX - minHighlightX;
-void Controller::Impl::FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex )
-{
- CharacterIndex hitCharacter = GetClosestCursorIndex( visualX, visualY );
- if( hitCharacter >= mLogicalModel->mText.Count() )
- {
- // Selection out of bounds.
- return;
- }
+ highLightPosition.x = minHighlightX;
+ const SelectionBoxInfo& firstSelectionBoxLineInfo = *( selectionBoxLinesInfo.Begin() );
+ highLightPosition.y = firstSelectionBoxLineInfo.lineOffset;
- startIndex = hitCharacter;
- endIndex = hitCharacter;
+ mEventData->mDecorator->SetHighLightBox( highLightPosition, highLightSize );
- if( !TextAbstraction::IsWhiteSpace( mLogicalModel->mText[hitCharacter] ) )
+ if( !mEventData->mDecorator->IsSmoothHandlePanEnabled() )
{
- // Find the start and end of the text
- for( startIndex = hitCharacter; startIndex > 0; --startIndex )
- {
- Character charCode = mLogicalModel->mText[ startIndex-1 ];
- if( TextAbstraction::IsWhiteSpace( charCode ) )
- {
- break;
- }
- }
- const CharacterIndex pastTheEnd = mLogicalModel->mText.Count();
- for( endIndex = hitCharacter + 1u; endIndex < pastTheEnd; ++endIndex )
- {
- Character charCode = mLogicalModel->mText[ endIndex ];
- if( TextAbstraction::IsWhiteSpace( charCode ) )
- {
- break;
- }
- }
+ CursorInfo primaryCursorInfo;
+ GetCursorPosition( mEventData->mLeftSelectionPosition,
+ primaryCursorInfo );
+
+ const Vector2 primaryPosition = primaryCursorInfo.primaryPosition + mScrollPosition;
+
+ mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE,
+ primaryPosition.x,
+ primaryCursorInfo.lineOffset + mScrollPosition.y,
+ primaryCursorInfo.lineHeight );
+
+ CursorInfo secondaryCursorInfo;
+ GetCursorPosition( mEventData->mRightSelectionPosition,
+ secondaryCursorInfo );
+
+ const Vector2 secondaryPosition = secondaryCursorInfo.primaryPosition + mScrollPosition;
+
+ mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE,
+ secondaryPosition.x,
+ secondaryCursorInfo.lineOffset + mScrollPosition.y,
+ secondaryCursorInfo.lineHeight );
}
+
+ // Cursor to be positioned at end of selection so if selection interrupted and edit mode restarted the cursor will be at end of selection
+ mEventData->mPrimaryCursorPosition = ( indicesSwapped ) ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition;
+
+ // Set the flag to update the decorator.
+ mEventData->mDecoratorUpdated = true;
}
-CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
- float visualY )
+void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
{
if( NULL == mEventData )
{
// Nothing to do if there is no text input.
- return 0u;
+ return;
}
- CharacterIndex logicalIndex = 0u;
+ if( IsShowingPlaceholderText() )
+ {
+ // Nothing to do if there is the place-holder text.
+ return;
+ }
const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
const Length numberOfLines = mVisualModel->mLines.Count();
- if( 0 == numberOfGlyphs ||
- 0 == numberOfLines )
+ if( ( 0 == numberOfGlyphs ) ||
+ ( 0 == numberOfLines ) )
{
- return logicalIndex;
+ // Nothing to do if there is no text.
+ return;
}
- // 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();
+ // Find which word was selected
+ CharacterIndex selectionStart( 0 );
+ CharacterIndex selectionEnd( 0 );
+ const bool indicesFound = FindSelectionIndices( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ visualX,
+ visualY,
+ selectionStart,
+ selectionEnd );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
- // If the vector is void, there is no right to left characters.
- const bool hasRightToLeftCharacters = NULL != visualToLogicalBuffer;
+ if( indicesFound )
+ {
+ ChangeState( EventData::SELECTING );
- 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" );
+ mEventData->mLeftSelectionPosition = selectionStart;
+ mEventData->mRightSelectionPosition = selectionEnd;
- // Whether there is a hit on a glyph.
- bool matched = false;
+ mEventData->mUpdateLeftSelectionPosition = true;
+ mEventData->mUpdateRightSelectionPosition = true;
+ mEventData->mUpdateHighlightBox = true;
- // Traverses glyphs in visual order. To do that use the visual to logical conversion table.
- CharacterIndex visualIndex = startCharacter;
- for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex )
+ mEventData->mScrollAfterUpdatePosition = ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition );
+ }
+ else
{
- // The character in logical order.
- const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex;
+ // Nothing to select. i.e. a white space, out of bounds
+ ChangeState( EventData::EDITING );
- // The first glyph for that character in logical order.
- const GlyphIndex glyphLogicalOrderIndex = *( charactersToGlyphBuffer + characterLogicalOrderIndex );
+ mEventData->mPrimaryCursorPosition = selectionEnd;
- // The number of glyphs for that character
- const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex );
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mUpdateGrabHandlePosition = true;
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mUpdateInputStyle = true;
+ }
+}
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( glyphLogicalOrderIndex,
- numberOfGlyphs,
- glyphMetrics,
- mVisualModel,
- mFontClient );
+void Controller::Impl::SetPopupButtons()
+{
+ /**
+ * Sets the Popup buttons to be shown depending on State.
+ *
+ * If SELECTING : CUT & COPY + ( PASTE & CLIPBOARD if content available to paste )
+ *
+ * If EDITING_WITH_POPUP : SELECT & SELECT_ALL
+ */
- const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
+ TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::NONE;
- // Find the mid-point of the area containing the glyph
- const float glyphCenter = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+ if( EventData::SELECTING == mEventData->mState )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::CUT | TextSelectionPopup::COPY );
- if( visualX < glyphCenter )
+ if( !IsClipboardEmpty() )
{
- matched = true;
- break;
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) );
}
- }
-
- // Return the logical position of the cursor in characters.
- if( !matched )
- {
- visualIndex = endCharacter;
+ if( !mEventData->mAllTextSelected )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::SELECT_ALL ) );
+ }
}
-
- logicalIndex = hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex );
- return logicalIndex;
-}
-
-void Controller::Impl::GetCursorPosition( CharacterIndex logical,
- CursorInfo& cursorInfo )
-{
- // 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 )
+ else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
{
- // There is zero characters. Get the default font.
+ if( mLogicalModel->mText.Count() && !IsShowingPlaceholderText() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL );
+ }
- FontId defaultFontId = 0u;
- if( NULL == mFontDefaults )
+ if( !IsClipboardEmpty() )
{
- defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
- EMPTY_STRING );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) );
}
- else
+ }
+ else if( EventData::EDITING_WITH_PASTE_POPUP == mEventData->mState )
+ {
+ if ( !IsClipboardEmpty() )
{
- defaultFontId = mFontDefaults->GetFontId( mFontClient );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) );
}
-
- 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;
}
- // Get the previous logical index.
- const CharacterIndex previousLogical = isFirstPosition ? 0u : logical - 1u;
+ mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+}
- // Decrease the logical index if it's the last one.
- if( isLastPosition )
+void Controller::Impl::ChangeState( EventData::State newState )
+{
+ if( NULL == mEventData )
{
- --logical;
+ // Nothing to do if there is no text input.
+ return;
}
- // Get the direction of the character and the previous one.
- const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
+ DALI_LOG_INFO( gLogFilter, Debug::General, "ChangeState state:%d newstate:%d\n", mEventData->mState, newState );
- CharacterDirection isCurrentRightToLeft = false;
- CharacterDirection isPreviousRightToLeft = false;
- if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
+ if( mEventData->mState != newState )
{
- isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + logical );
- isPreviousRightToLeft = *( modelCharacterDirectionsBuffer + previousLogical );
- }
-
- // Get the line where the character is laid-out.
- const LineRun* modelLines = mVisualModel->mLines.Begin();
+ mEventData->mPreviousState = mEventData->mState;
+ mEventData->mState = newState;
- const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( logical );
- const LineRun& line = *( modelLines + lineIndex );
+ switch( mEventData->mState )
+ {
+ case EventData::INACTIVE:
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ mEventData->mDecorator->SetPopupActive( false );
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ break;
+ }
+ case EventData::INTERRUPTED:
+ {
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ mEventData->mDecorator->SetPopupActive( false );
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ break;
+ }
+ case EventData::SELECTING:
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHighlightActive( true );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ case EventData::EDITING:
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ // Grab handle is not shown until a tap is received whilst EDITING
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ break;
+ }
+ case EventData::EDITING_WITH_POPUP:
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_POPUP \n", newState );
- // Get the paragraph's direction.
- const CharacterDirection isRightToLeftParagraph = line.direction;
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ if( mEventData->mSelectionEnabled )
+ {
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ }
+ else
+ {
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ }
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ HideClipboard();
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ case EventData::EDITING_WITH_GRAB_HANDLE:
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_GRAB_HANDLE \n", newState );
- // Check whether there is an alternative position:
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ // Grab handle is not shown until a tap is received whilst EDITING
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ break;
+ }
+ case EventData::SELECTION_HANDLE_PANNING:
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHighlightActive( true );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ case EventData::GRAB_HANDLE_PANNING:
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GRAB_HANDLE_PANNING \n", newState );
- cursorInfo.isSecondaryCursor = ( isCurrentRightToLeft != isPreviousRightToLeft ) ||
- ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ case EventData::EDITING_WITH_PASTE_POPUP:
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_PASTE_POPUP \n", newState );
- // Set the line height.
- cursorInfo.lineHeight = line.ascender + -line.descender;
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
- // Convert the cursor position into the glyph position.
- CharacterIndex characterIndex = logical;
- if( cursorInfo.isSecondaryCursor &&
- ( isRightToLeftParagraph != isCurrentRightToLeft ) )
- {
- characterIndex = previousLogical;
- }
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( false );
- const GlyphIndex currentGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
- const Length numberOfCharacters = *( mVisualModel->mCharactersPerGlyph.Begin() +currentGlyphIndex );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ HideClipboard();
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ case EventData::TEXT_PANNING:
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ if( mEventData->mDecorator->IsHandleActive( LEFT_SELECTION_HANDLE ) ||
+ mEventData->mDecorator->IsHandleActive( RIGHT_SELECTION_HANDLE ) )
+ {
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHighlightActive( true );
+ }
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( currentGlyphIndex,
- numberOfGlyphs,
- glyphMetrics,
- mVisualModel,
- mFontClient );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
- 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 );
+ mEventData->mDecoratorUpdated = true;
+ break;
+ }
+ }
}
+}
- // Get the glyph position and x bearing.
- const Vector2& currentPosition = *( mVisualModel->mGlyphPositions.Begin() + currentGlyphIndex );
-
- // Set the cursor's height.
- cursorInfo.primaryCursorHeight = glyphMetrics.fontHeight;
-
- // Set the position.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + currentPosition.x + ( isCurrentRightToLeft ? glyphMetrics.advance : interGlyphAdvance );
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
-
- if( isLastPosition )
+void Controller::Impl::GetCursorPosition( CharacterIndex logical,
+ CursorInfo& cursorInfo )
+{
+ if( !IsShowingRealText() )
{
- // 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 );
+ // Do not want to use the place-holder text to set the cursor position.
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( glyphIndex,
- numberOfGlyphs,
- glyphMetrics,
- mVisualModel,
- mFontClient );
+ // Use the line's height of the font's family set to set the cursor's size.
+ // If there is no font's family set, use the default font.
+ // Use the current alignment to place the cursor at the beginning, center or end of the box.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + position.x + ( isRightToLeftParagraph ? 0.f : glyphMetrics.advance );
+ cursorInfo.lineOffset = 0.f;
+ cursorInfo.lineHeight = GetDefaultFontLineHeight();
+ cursorInfo.primaryCursorHeight = cursorInfo.lineHeight;
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
- }
- else
+ switch( mLayoutEngine.GetHorizontalAlignment() )
{
- if( !isCurrentRightToLeft )
+ case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
{
- cursorInfo.primaryPosition.x += glyphMetrics.advance;
+ cursorInfo.primaryPosition.x = 0.f;
+ break;
}
- else
+ case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
+ {
+ cursorInfo.primaryPosition.x = floorf( 0.5f * mVisualModel->mControlSize.width );
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
{
- cursorInfo.primaryPosition.x -= glyphMetrics.advance;
+ cursorInfo.primaryPosition.x = mVisualModel->mControlSize.width - mEventData->mDecorator->GetCursorWidth();
+ break;
}
}
- }
-
- // 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 );
+ // Nothing else to do.
+ return;
+ }
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( previousGlyphIndex,
- numberOfGlyphs,
- glyphMetrics,
- mVisualModel,
- mFontClient );
+ Text::GetCursorPosition( mVisualModel,
+ mLogicalModel,
+ mMetrics,
+ logical,
+ cursorInfo );
- // Set the cursor position and height.
- cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + previousPosition.x + ( ( ( isLastPosition && !isCurrentRightToLeft ) ||
- ( !isLastPosition && isCurrentRightToLeft ) ) ? glyphMetrics.advance : 0.f );
+ if( LayoutEngine::MULTI_LINE_BOX == mLayoutEngine.GetLayout() )
+ {
+ // If the text is editable and multi-line, the cursor position after a white space shouldn't exceed the boundaries of the text control.
- cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
+ // Note the white spaces laid-out at the end of the line might exceed the boundaries of the control.
+ // The reason is a wrapped line must not start with a white space so they are laid-out at the end of the line.
- cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
+ if( 0.f > cursorInfo.primaryPosition.x )
+ {
+ cursorInfo.primaryPosition.x = 0.f;
+ }
- // Update the primary cursor height as well.
- cursorInfo.primaryCursorHeight *= 0.5f;
+ const float edgeWidth = mVisualModel->mControlSize.width - static_cast<float>( mEventData->mDecorator->GetCursorWidth() );
+ if( cursorInfo.primaryPosition.x > edgeWidth )
+ {
+ cursorInfo.primaryPosition.x = edgeWidth;
+ }
}
}
CharacterIndex cursorIndex = mEventData->mPrimaryCursorPosition;
- const Script script = mLogicalModel->GetScript( index );
- const GlyphIndex* charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
- const Length* charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+
+ GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
+ Length numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
- Length numberOfCharacters = 0u;
- if( TextAbstraction::LATIN == script )
+ if( numberOfCharacters > 1u )
{
- // Prevents to jump the whole Latin ligatures like fi, ff, ...
- numberOfCharacters = 1u;
+ const Script script = mLogicalModel->GetScript( index );
+ if( HasLigatureMustBreak( script ) )
+ {
+ // Prevents to jump the whole Latin ligatures like fi, ff, or Arabic ﻻ, ...
+ numberOfCharacters = 1u;
+ }
}
else
{
- GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
-
while( 0u == numberOfCharacters )
{
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
++glyphIndex;
+ numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
}
}
cursorIndex += numberOfCharacters;
}
+ // Will update the cursor hook position.
+ mEventData->mUpdateCursorHookPosition = true;
+
return cursorIndex;
}
-void Controller::Impl::UpdateCursorPosition()
+void Controller::Impl::UpdateCursorPosition( const CursorInfo& cursorInfo )
{
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::UpdateCursorPosition %p\n", this );
if( NULL == mEventData )
return;
}
- if( IsShowingPlaceholderText() )
- {
- // Do not want to use the place-holder text to set the cursor position.
-
- // Use the line's height of the font's family set to set the cursor's size.
- // If there is no font's family set, use the default font.
- // Use the current alignment to place the cursor at the beginning, center or end of the box.
-
- float lineHeight = 0.f;
-
- 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 );
-
- lineHeight = fontMetrics.ascender - fontMetrics.descender;
-
-
- Vector2 cursorPosition;
-
- switch( mLayoutEngine.GetHorizontalAlignment() )
- {
- case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
- {
- cursorPosition.x = 1.f;
- break;
- }
- case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
- {
- cursorPosition.x = floor( 0.5f * mControlSize.width );
- break;
- }
- case LayoutEngine::HORIZONTAL_ALIGN_END:
- {
- cursorPosition.x = mControlSize.width;
- break;
- }
- }
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + mScrollPosition;
- switch( mLayoutEngine.GetVerticalAlignment() )
- {
- case LayoutEngine::VERTICAL_ALIGN_TOP:
- {
- cursorPosition.y = 0.f;
- break;
- }
- case LayoutEngine::VERTICAL_ALIGN_CENTER:
- {
- cursorPosition.y = floorf( 0.5f * ( mControlSize.height - lineHeight ) );
- break;
- }
- case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
- {
- cursorPosition.y = mControlSize.height - lineHeight;
- break;
- }
- }
+ // Sets the cursor position.
+ mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.primaryCursorHeight,
+ cursorInfo.lineHeight );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Primary cursor position: %f,%f\n", cursorPosition.x, cursorPosition.y );
- mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorPosition.x,
- cursorPosition.y,
- lineHeight,
- lineHeight );
- }
- else
+ if( mEventData->mUpdateGrabHandlePosition )
{
- CursorInfo cursorInfo;
- GetCursorPosition( mEventData->mPrimaryCursorPosition,
- cursorInfo );
-
- const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
- const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
-
- // Sets the cursor position.
- mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorPosition.x,
- cursorPosition.y,
- cursorInfo.primaryCursorHeight,
- cursorInfo.lineHeight );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Primary cursor position: %f,%f\n", cursorPosition.x, cursorPosition.y );
-
// Sets the grab handle position.
mEventData->mDecorator->SetPosition( GRAB_HANDLE,
cursorPosition.x,
- cursorPosition.y,
+ cursorInfo.lineOffset + mScrollPosition.y,
+ cursorInfo.lineHeight );
+ }
+
+ if( cursorInfo.isSecondaryCursor )
+ {
+ mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
+ cursorInfo.secondaryPosition.x + mScrollPosition.x,
+ cursorInfo.secondaryPosition.y + mScrollPosition.y,
+ cursorInfo.secondaryCursorHeight,
cursorInfo.lineHeight );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + mScrollPosition.x, cursorInfo.secondaryPosition.y + mScrollPosition.y );
+ }
+ // Set which cursors are active according the state.
+ if( EventData::IsEditingState( mEventData->mState ) || ( EventData::GRAB_HANDLE_PANNING == mEventData->mState ) )
+ {
if( cursorInfo.isSecondaryCursor )
{
mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
- mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
- cursorInfo.secondaryPosition.x + offset.x,
- cursorInfo.secondaryPosition.y + offset.y,
- cursorInfo.secondaryCursorHeight,
- cursorInfo.lineHeight );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
}
else
{
mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
}
}
+ else
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ }
+
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition\n" );
}
-void Controller::Impl::UpdateSelectionHandle( HandleType handleType )
+void Controller::Impl::UpdateSelectionHandle( HandleType handleType,
+ const CursorInfo& cursorInfo )
{
if( ( LEFT_SELECTION_HANDLE != handleType ) &&
( RIGHT_SELECTION_HANDLE != handleType ) )
return;
}
- const bool leftSelectionHandle = LEFT_SELECTION_HANDLE == handleType;
- const CharacterIndex index = leftSelectionHandle ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition;
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + mScrollPosition;
- CursorInfo cursorInfo;
- GetCursorPosition( index,
- cursorInfo );
-
- const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
- const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
-
- // Sets the grab handle position.
+ // Sets the handle's position.
mEventData->mDecorator->SetPosition( handleType,
cursorPosition.x,
- cursorPosition.y,
+ cursorInfo.lineOffset + mScrollPosition.y,
cursorInfo.lineHeight );
+
+ // If selection handle at start of the text and other at end of the text then all text is selected.
+ const CharacterIndex startOfSelection = std::min( mEventData->mLeftSelectionPosition, mEventData->mRightSelectionPosition );
+ const CharacterIndex endOfSelection = std::max ( mEventData->mLeftSelectionPosition, mEventData->mRightSelectionPosition );
+ mEventData->mAllTextSelected = ( startOfSelection == 0 ) && ( endOfSelection == mLogicalModel->mText.Count() );
}
-void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize )
+void Controller::Impl::ClampHorizontalScroll( const Vector2& layoutSize )
{
- // Clamp between -space & 0 (and the text alignment).
- if( actualSize.width > mControlSize.width )
+ // Clamp between -space & 0.
+
+ if( layoutSize.width > mVisualModel->mControlSize.width )
{
- const float space = ( actualSize.width - mControlSize.width ) + mAlignmentOffset.x;
- mEventData->mScrollPosition.x = ( mEventData->mScrollPosition.x < -space ) ? -space : mEventData->mScrollPosition.x;
- mEventData->mScrollPosition.x = ( mEventData->mScrollPosition.x > -mAlignmentOffset.x ) ? -mAlignmentOffset.x : mEventData->mScrollPosition.x;
+ const float space = ( layoutSize.width - mVisualModel->mControlSize.width );
+ mScrollPosition.x = ( mScrollPosition.x < -space ) ? -space : mScrollPosition.x;
+ mScrollPosition.x = ( mScrollPosition.x > 0.f ) ? 0.f : mScrollPosition.x;
mEventData->mDecoratorUpdated = true;
}
else
{
- mEventData->mScrollPosition.x = 0.f;
+ mScrollPosition.x = 0.f;
}
}
-void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize )
+void Controller::Impl::ClampVerticalScroll( const Vector2& layoutSize )
{
- // Clamp between -space & 0 (and the text alignment).
- if( actualSize.height > mControlSize.height )
+ // Clamp between -space & 0.
+ if( layoutSize.height > mVisualModel->mControlSize.height )
{
- const float space = ( actualSize.height - mControlSize.height ) + mAlignmentOffset.y;
- mEventData->mScrollPosition.y = ( mEventData->mScrollPosition.y < -space ) ? -space : mEventData->mScrollPosition.y;
- mEventData->mScrollPosition.y = ( mEventData->mScrollPosition.y > -mAlignmentOffset.y ) ? -mAlignmentOffset.y : mEventData->mScrollPosition.y;
+ const float space = ( layoutSize.height - mVisualModel->mControlSize.height );
+ mScrollPosition.y = ( mScrollPosition.y < -space ) ? -space : mScrollPosition.y;
+ mScrollPosition.y = ( mScrollPosition.y > 0.f ) ? 0.f : mScrollPosition.y;
mEventData->mDecoratorUpdated = true;
}
else
{
- mEventData->mScrollPosition.y = 0.f;
+ mScrollPosition.y = 0.f;
}
}
-void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position )
+void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position, float lineHeight )
{
- Vector2 offset;
- bool updateDecorator = false;
- if( position.x < 0.f )
+ const float cursorWidth = mEventData->mDecorator ? static_cast<float>( mEventData->mDecorator->GetCursorWidth() ) : 0.f;
+
+ // position is in actor's coords.
+ const float positionEndX = position.x + cursorWidth;
+ const float positionEndY = position.y + lineHeight;
+
+ // Transform the position to decorator coords.
+ const float decoratorPositionBeginX = position.x + mScrollPosition.x;
+ const float decoratorPositionEndX = positionEndX + mScrollPosition.x;
+
+ const float decoratorPositionBeginY = position.y + mScrollPosition.y;
+ const float decoratorPositionEndY = positionEndY + mScrollPosition.y;
+
+ if( decoratorPositionBeginX < 0.f )
{
- offset.x = -position.x;
- mEventData->mScrollPosition.x += offset.x;
- updateDecorator = true;
+ mScrollPosition.x = -position.x;
}
- else if( position.x > mControlSize.width )
+ else if( decoratorPositionEndX > mVisualModel->mControlSize.width )
{
- offset.x = mControlSize.width - position.x;
- mEventData->mScrollPosition.x += offset.x;
- updateDecorator = true;
+ mScrollPosition.x = mVisualModel->mControlSize.width - positionEndX;
}
- if( updateDecorator && mEventData->mDecorator )
+ if( decoratorPositionBeginY < 0.f )
{
- mEventData->mDecorator->UpdatePositions( offset );
+ mScrollPosition.y = -position.y;
+ }
+ else if( decoratorPositionEndY > mVisualModel->mControlSize.height )
+ {
+ mScrollPosition.y = mVisualModel->mControlSize.height - positionEndY;
}
-
- // TODO : calculate the vertical scroll.
}
-void Controller::Impl::ScrollTextToMatchCursor()
+void Controller::Impl::ScrollTextToMatchCursor( const CursorInfo& cursorInfo )
{
// Get the current cursor position in decorator coords.
const Vector2& currentCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
- // Calculate the new cursor position.
- CursorInfo cursorInfo;
- GetCursorPosition( mEventData->mPrimaryCursorPosition,
- cursorInfo );
-
// Calculate the offset to match the cursor position before the character was deleted.
- mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x;
-
- ClampHorizontalScroll( mVisualModel->GetActualSize() );
- bool updateCursorPosition = true;
-
- const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
- const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
-
- if( updateCursorPosition )
- {
- // Sets the cursor position.
- mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorPosition.x,
- cursorPosition.y,
- cursorInfo.primaryCursorHeight,
- cursorInfo.lineHeight );
+ mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x;
+ mScrollPosition.y = currentCursorPosition.y - cursorInfo.lineOffset;
- // Sets the grab handle position.
- mEventData->mDecorator->SetPosition( GRAB_HANDLE,
- cursorPosition.x,
- cursorPosition.y,
- cursorInfo.lineHeight );
+ ClampHorizontalScroll( mVisualModel->GetLayoutSize() );
+ ClampVerticalScroll( mVisualModel->GetLayoutSize() );
- if( cursorInfo.isSecondaryCursor )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
- mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
- cursorInfo.secondaryPosition.x + offset.x,
- cursorInfo.secondaryPosition.y + offset.y,
- cursorInfo.secondaryCursorHeight,
- cursorInfo.lineHeight );
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
- }
- else
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- }
- }
+ // Makes the new cursor position visible if needed.
+ ScrollToMakePositionVisible( cursorInfo.primaryPosition, cursorInfo.lineHeight );
}
void Controller::Impl::RequestRelayout()
projects / platform / core / uifw / dali-toolkit.git / blobdiff