X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller-impl.cpp;h=5dc17a43e2f966eda9ac81daaa5bf7c92d7161e3;hb=5b4982566aba41b5e21c3b8ce3e01a7e86db8f28;hp=f39effea67f56b4af5c766523d8e4aab4e0bb136;hpb=09f35f81061ca470e79ac674024b9e587ff44e7f;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git diff --git a/dali-toolkit/internal/text/text-controller-impl.cpp b/dali-toolkit/internal/text/text-controller-impl.cpp index f39effe..c2c2fa8 100644 --- a/dali-toolkit/internal/text/text-controller-impl.cpp +++ b/dali-toolkit/internal/text/text-controller-impl.cpp @@ -20,21 +20,23 @@ // EXTERNAL INCLUDES #include +#include // INTERNAL INCLUDES #include #include -#include +#include #include -#include #include #include -#include -#include namespace { +#if defined(DEBUG_ENABLED) + Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, 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. @@ -57,8 +59,6 @@ struct GlyphMetrics float xBearing; ///< The x bearing of the first glyph. }; -const std::string EMPTY_STRING(""); - } // namespace namespace Dali @@ -76,21 +76,21 @@ namespace Text * @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] + * @param[in] visualModel The visual model. + * @param[in] metrics Used to access metrics from FontClient. */ void GetGlyphsMetrics( GlyphIndex glyphIndex, Length numberOfGlyphs, GlyphMetrics& glyphMetrics, - VisualModelPtr visualModel, - TextAbstraction::FontClient& fontClient ) + VisualModelPtr& visualModel, + MetricsPtr& metrics ) { const GlyphInfo* glyphsBuffer = visualModel->mGlyphs.Begin(); const GlyphInfo& firstGlyph = *( glyphsBuffer + glyphIndex ); Text::FontMetrics fontMetrics; - fontClient.GetFontMetrics( firstGlyph.fontId, fontMetrics ); + metrics->GetFontMetrics( firstGlyph.fontId, fontMetrics ); glyphMetrics.fontHeight = fontMetrics.height; glyphMetrics.advance = firstGlyph.advance; @@ -107,6 +107,7 @@ void GetGlyphsMetrics( GlyphIndex glyphIndex, EventData::EventData( DecoratorPtr decorator ) : mDecorator( decorator ), + mImfManager(), mPlaceholderTextActive(), mPlaceholderTextInactive(), mPlaceholderTextColor( 0.8f, 0.8f, 0.8f, 0.8f ), @@ -123,29 +124,34 @@ EventData::EventData( DecoratorPtr decorator ) mDecoratorUpdated( false ), mCursorBlinkEnabled( true ), mGrabHandleEnabled( true ), - mGrabHandlePopupEnabled( false ), - mSelectionEnabled( false ), + mGrabHandlePopupEnabled( true ), + mSelectionEnabled( true ), mHorizontalScrollingEnabled( true ), mVerticalScrollingEnabled( false ), mUpdateCursorPosition( false ), mUpdateLeftSelectionPosition( false ), mUpdateRightSelectionPosition( false ), - mScrollAfterUpdateCursorPosition( false ) -{} + mScrollAfterUpdatePosition( false ), + mScrollAfterDelete( false ), + mAllTextSelected( false ), + mUpdateInputStyle( false ) +{ + mImfManager = ImfManager::Get(); +} EventData::~EventData() {} bool Controller::Impl::ProcessInputEvents() { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::ProcessInputEvents\n" ); if( NULL == mEventData ) { // Nothing to do if there is no text input. + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents no event data\n" ); return false; } - mEventData->mDecoratorUpdated = false; - if( mEventData->mDecorator ) { for( std::vector::iterator iter = mEventData->mEventQueue.begin(); @@ -154,38 +160,43 @@ bool Controller::Impl::ProcessInputEvents() { switch( iter->type ) { - case Event::KEYBOARD_FOCUS_GAIN_EVENT: - { - OnKeyboardFocus( true ); - break; - } - case Event::KEYBOARD_FOCUS_LOST_EVENT: - { - OnKeyboardFocus( false ); - break; - } - 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; + } } } } @@ -194,137 +205,128 @@ bool Controller::Impl::ProcessInputEvents() if( mEventData->mUpdateCursorPosition ) { // Updates the cursor position and scrolls the text to make it visible. + CursorInfo cursorInfo; + GetCursorPosition( mEventData->mPrimaryCursorPosition, + cursorInfo ); - UpdateCursorPosition(); - - if( mEventData->mScrollAfterUpdateCursorPosition ) + if( mEventData->mScrollAfterUpdatePosition ) + { + ScrollToMakePositionVisible( cursorInfo.primaryPosition ); + mEventData->mScrollAfterUpdatePosition = false; + } + else if( mEventData->mScrollAfterDelete ) { - ScrollToMakeCursorVisible(); - mEventData->mScrollAfterUpdateCursorPosition = false; + ScrollTextToMatchCursor( cursorInfo ); + mEventData->mScrollAfterDelete = false; } + UpdateCursorPosition( cursorInfo ); + mEventData->mDecoratorUpdated = true; mEventData->mUpdateCursorPosition = false; } - else if( mEventData->mUpdateLeftSelectionPosition ) + else { - UpdateSelectionHandle( LEFT_SELECTION_HANDLE ); + bool leftScroll = false; + bool rightScroll = false; - if( mEventData->mScrollAfterUpdateCursorPosition ) + CursorInfo leftHandleInfo; + CursorInfo rightHandleInfo; + + if( mEventData->mUpdateLeftSelectionPosition ) { - ScrollToMakeCursorVisible(); - mEventData->mScrollAfterUpdateCursorPosition = false; - } + GetCursorPosition( mEventData->mLeftSelectionPosition, + leftHandleInfo ); - mEventData->mDecoratorUpdated = true; - mEventData->mUpdateLeftSelectionPosition = false; - } - else if( mEventData->mUpdateRightSelectionPosition ) - { - UpdateSelectionHandle( RIGHT_SELECTION_HANDLE ); + if( mEventData->mScrollAfterUpdatePosition ) + { + ScrollToMakePositionVisible( leftHandleInfo.primaryPosition ); + leftScroll = true; + } + } - if( mEventData->mScrollAfterUpdateCursorPosition ) + if( mEventData->mUpdateRightSelectionPosition ) { - ScrollToMakeCursorVisible(); - mEventData->mScrollAfterUpdateCursorPosition = false; + GetCursorPosition( mEventData->mRightSelectionPosition, + rightHandleInfo ); + + if( mEventData->mScrollAfterUpdatePosition ) + { + ScrollToMakePositionVisible( rightHandleInfo.primaryPosition ); + rightScroll = true; + } } - mEventData->mDecoratorUpdated = true; - mEventData->mUpdateRightSelectionPosition = false; - } + if( mEventData->mUpdateLeftSelectionPosition ) + { + UpdateSelectionHandle( LEFT_SELECTION_HANDLE, + leftHandleInfo ); - mEventData->mEventQueue.clear(); + SetPopupButtons(); + mEventData->mDecoratorUpdated = true; + } - return mEventData->mDecoratorUpdated; -} + if( mEventData->mUpdateRightSelectionPosition ) + { + UpdateSelectionHandle( RIGHT_SELECTION_HANDLE, + rightHandleInfo ); -void Controller::Impl::ReplaceTextWithPlaceholder() -{ - DALI_ASSERT_DEBUG( mEventData && "No placeholder text available" ); - if( !mEventData ) - { - return; - } + SetPopupButtons(); + mEventData->mDecoratorUpdated = true; + } - // Disable handles when showing place-holder text - mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false ); - mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false ); - mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false ); + if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition ) + { + RepositionSelectionHandles(); - const char* text( NULL ); - size_t size( 0 ); + mEventData->mUpdateLeftSelectionPosition = false; + mEventData->mUpdateRightSelectionPosition = false; + } - if( EventData::INACTIVE != mEventData->mState && - 0u != mEventData->mPlaceholderTextActive.c_str() ) - { - text = mEventData->mPlaceholderTextActive.c_str(); - size = mEventData->mPlaceholderTextActive.size(); + if( leftScroll || rightScroll ) + { + mEventData->mScrollAfterUpdatePosition = false; + } } - else + if( mEventData->mUpdateInputStyle ) { - text = mEventData->mPlaceholderTextInactive.c_str(); - size = mEventData->mPlaceholderTextInactive.size(); - } - - // Reset buffers. - mLogicalModel->mText.Clear(); - mLogicalModel->mScriptRuns.Clear(); - mLogicalModel->mFontRuns.Clear(); - mLogicalModel->mLineBreakInfo.Clear(); - mLogicalModel->mWordBreakInfo.Clear(); - mLogicalModel->mBidirectionalParagraphInfo.Clear(); - mLogicalModel->mCharacterDirections.Clear(); - mLogicalModel->mBidirectionalLineInfo.Clear(); - mLogicalModel->mLogicalToVisualMap.Clear(); - mLogicalModel->mVisualToLogicalMap.Clear(); - mVisualModel->mGlyphs.Clear(); - mVisualModel->mGlyphsToCharacters.Clear(); - mVisualModel->mCharactersToGlyph.Clear(); - mVisualModel->mCharactersPerGlyph.Clear(); - mVisualModel->mGlyphsPerCharacter.Clear(); - mVisualModel->mGlyphPositions.Clear(); - mVisualModel->mLines.Clear(); - mVisualModel->ClearCaches(); - mVisualModel->SetTextColor( mEventData->mPlaceholderTextColor ); - - // Convert text into UTF-32 - Vector& utf32Characters = mLogicalModel->mText; - utf32Characters.Resize( size ); + // 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 ); - // This is a bit horrible but std::string returns a (signed) char* - const uint8_t* utf8 = reinterpret_cast( text ); + mEventData->mUpdateInputStyle = false; + } - // Transform a text array encoded in utf8 into an array encoded in utf32. - // It returns the actual number of characters. - Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() ); - utf32Characters.Resize( characterCount ); + mEventData->mEventQueue.clear(); - // Reset the cursor position - mEventData->mPrimaryCursorPosition = 0; + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents\n" ); - // The natural size needs to be re-calculated. - mRecalculateNaturalSize = true; + const bool decoratorUpdated = mEventData->mDecoratorUpdated; + mEventData->mDecoratorUpdated = false; - // Apply modifications to the model - mOperationsPending = ALL_OPERATIONS; - UpdateModel( ALL_OPERATIONS ); - mOperationsPending = static_cast( LAYOUT | - ALIGN | - UPDATE_ACTUAL_SIZE | - REORDER ); + return decoratorUpdated; } void 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( mOperationsPending & operationsRequired ); Vector& utf32Characters = mLogicalModel->mText; - const Length numberOfCharacters = mLogicalModel->GetNumberOfCharacters(); + const Length numberOfCharacters = utf32Characters.Count(); Vector& lineBreakInfo = mLogicalModel->mLineBreakInfo; + CharacterIndex startIndex = 0u; + Length requestedNumberOfCharacters = numberOfCharacters; if( GET_LINE_BREAKS & operations ) { // Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to @@ -344,6 +346,8 @@ void Controller::Impl::UpdateModel( OperationsMask operationsRequired ) wordBreakInfo.Resize( numberOfCharacters, TextAbstraction::WORD_NO_BREAK ); SetWordBreakInfo( utf32Characters, + startIndex, + requestedNumberOfCharacters, wordBreakInfo ); } @@ -363,36 +367,39 @@ void Controller::Impl::UpdateModel( OperationsMask operationsRequired ) { // Retrieves the scripts used in the text. multilanguageSupport.SetScripts( utf32Characters, - lineBreakInfo, + startIndex, + requestedNumberOfCharacters, scripts ); } 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 ); - } + // Validate the fonts set through the mark-up string. + Vector& 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 ); } } Vector mirroredUtf32Characters; bool textMirrored = false; + Length numberOfParagraphs = 0u; if( BIDI_INFO & operations ) { // Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's // bidirectional info. - Length numberOfParagraphs = 0u; - const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin(); for( Length index = 0u; index < numberOfCharacters; ++index ) { @@ -409,33 +416,44 @@ void Controller::Impl::UpdateModel( OperationsMask operationsRequired ) SetBidirectionalInfo( utf32Characters, scripts, lineBreakInfo, + startIndex, + requestedNumberOfCharacters, bidirectionalInfo ); if( 0u != bidirectionalInfo.Count() ) { - // 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, mirroredUtf32Characters ); - // Only set the character directions if there is right to left characters. Vector& directions = mLogicalModel->mCharacterDirections; - directions.Resize( numberOfCharacters ); - 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(); } - - } + } Vector& glyphs = mVisualModel->mGlyphs; Vector& glyphsToCharactersMap = mVisualModel->mGlyphsToCharacters; Vector& charactersPerGlyph = mVisualModel->mCharactersPerGlyph; + Vector newParagraphGlyphs; + newParagraphGlyphs.Reserve( numberOfParagraphs ); + + GlyphIndex startGlyphIndex = 0u; if( SHAPE_TEXT & operations ) { const Vector& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters; @@ -444,53 +462,131 @@ void Controller::Impl::UpdateModel( OperationsMask operationsRequired ) lineBreakInfo, scripts, validFonts, + startIndex, + startGlyphIndex, + requestedNumberOfCharacters, glyphs, glyphsToCharactersMap, - charactersPerGlyph ); + charactersPerGlyph, + newParagraphGlyphs ); // Create the 'number of glyphs' per character and the glyph to character conversion tables. - mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters ); - mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters ); + mVisualModel->CreateGlyphsPerCharacterTable( startIndex, numberOfCharacters ); + mVisualModel->CreateCharacterToGlyphTable( startIndex, numberOfCharacters ); } const Length numberOfGlyphs = glyphs.Count(); if( GET_GLYPH_METRICS & operations ) { - mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs ); + GlyphInfo* glyphsBuffer = glyphs.Begin() + startGlyphIndex; + mMetrics->GetGlyphMetrics( glyphsBuffer, numberOfGlyphs ); + + // Update the width and advance of all new paragraph characters. + for( Vector::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; + } + } + + 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 ); } } -void Controller::Impl::GetDefaultFonts( Vector& fonts, Length numberOfCharacters ) +bool Controller::Impl::UpdateModelStyle( OperationsMask operationsRequired ) { - if( mFontDefaults ) + bool updated = false; + + if( COLOR & operationsRequired ) { - FontRun fontRun; - fontRun.characterRun.characterIndex = 0; - fontRun.characterRun.numberOfCharacters = numberOfCharacters; - fontRun.fontId = mFontDefaults->GetFontId( mFontClient ); - fontRun.isDefault = true; + // Set the color runs in glyphs. + SetColorSegmentationInfo( mLogicalModel->mColorRuns, + mVisualModel->mCharactersToGlyph, + mVisualModel->mGlyphsPerCharacter, + mVisualModel->mColorRuns ); - fonts.PushBack( fontRun ); + updated = true; } + + return updated; } -void Controller::Impl::OnKeyboardFocus( bool hasFocus ) +void Controller::Impl::RetrieveDefaultInputStyle( InputStyle& inputStyle ) { - if( NULL == mEventData ) + // Sets the default text's color. + inputStyle.textColor = mTextColor; + + // Sets the default font's family name, weight, width, slant and size. + if( mFontDefaults ) { - // Nothing to do if there is no text input. - return; + inputStyle.familyName = mFontDefaults->mFontDescription.family; + inputStyle.weight = mFontDefaults->mFontDescription.weight; + inputStyle.width = mFontDefaults->mFontDescription.width; + inputStyle.slant = mFontDefaults->mFontDescription.slant; + inputStyle.size = mFontDefaults->mDefaultPointSize; + + inputStyle.familyDefined = mFontDefaults->familyDefined; + inputStyle.weightDefined = mFontDefaults->weightDefined; + inputStyle.widthDefined = mFontDefaults->widthDefined; + inputStyle.slantDefined = mFontDefaults->slantDefined; + inputStyle.sizeDefined = mFontDefaults->sizeDefined; + } + else + { + 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; } +} - if( !hasFocus ) +float Controller::Impl::GetDefaultFontLineHeight() +{ + FontId defaultFontId = 0u; + if( NULL == mFontDefaults ) { - ChangeState( EventData::INACTIVE ); + TextAbstraction::FontDescription fontDescription; + defaultFontId = mFontClient.GetFontId( fontDescription ); } else { - ChangeState( EventData::EDITING ); + defaultFontId = mFontDefaults->GetFontId( mFontClient ); } + + Text::FontMetrics fontMetrics; + mMetrics->GetFontMetrics( defaultFontId, fontMetrics ); + + return( fontMetrics.ascender - fontMetrics.descender ); } void Controller::Impl::OnCursorKeyEvent( const Event& event ) @@ -512,7 +608,7 @@ void Controller::Impl::OnCursorKeyEvent( const Event& event ) } else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode ) { - if( mLogicalModel->GetNumberOfCharacters() > mEventData->mPrimaryCursorPosition ) + if( mLogicalModel->mText.Count() > mEventData->mPrimaryCursorPosition ) { mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition ); } @@ -527,49 +623,45 @@ void Controller::Impl::OnCursorKeyEvent( const Event& event ) } mEventData->mUpdateCursorPosition = true; - mEventData->mScrollAfterUpdateCursorPosition = true; + mEventData->mUpdateInputStyle = true; + mEventData->mScrollAfterUpdatePosition = true; } void Controller::Impl::OnTapEvent( const Event& event ) { - if( NULL == mEventData ) + if( NULL != mEventData ) { - // Nothing to do if there is no text input. - return; - } - - const unsigned int tapCount = event.p1.mUint; + const unsigned int tapCount = event.p1.mUint; - if( 1u == tapCount ) - { - // Grab handle is not shown until a tap is received whilst EDITING - if( EventData::EDITING == mEventData->mState && - !IsShowingPlaceholderText() ) + if( 1u == tapCount ) { - if( mEventData->mGrabHandleEnabled ) + if( IsShowingRealText() ) { - mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true ); - } - mEventData->mDecorator->SetPopupActive( false ); - } - - ChangeState( EventData::EDITING ); + const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x; + const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y; - const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x; - const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y; + mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, + yPosition ); - mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, - yPosition ); + // When the cursor position is changing, delay cursor blinking + mEventData->mDecorator->DelayCursorBlink(); + } + else + { + mEventData->mPrimaryCursorPosition = 0u; + } - mEventData->mUpdateCursorPosition = true; - mEventData->mScrollAfterUpdateCursorPosition = true; - } - else if( mEventData->mSelectionEnabled && - ( 2u == tapCount ) ) - { - ChangeState( EventData::SELECTING ); + mEventData->mUpdateCursorPosition = true; + mEventData->mScrollAfterUpdatePosition = true; + mEventData->mUpdateInputStyle = true; - RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat ); + // Notify the cursor position to the imf manager. + if( mEventData->mImfManager ) + { + mEventData->mImfManager.SetCursorPosition( mEventData->mPrimaryCursorPosition ); + mEventData->mImfManager.NotifyCursorPosition(); + } + } } } @@ -612,6 +704,17 @@ void Controller::Impl::OnPanEvent( const Event& event ) } } +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; + } +} + void Controller::Impl::OnHandleEvent( const Event& event ) { if( NULL == mEventData ) @@ -621,6 +724,7 @@ void Controller::Impl::OnHandleEvent( const Event& event ) } const unsigned int state = event.p1.mUint; + const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state ); if( HANDLE_PRESSED == state ) { @@ -632,7 +736,7 @@ void Controller::Impl::OnHandleEvent( const Event& event ) if( Event::GRAB_HANDLE_EVENT == event.type ) { - ChangeState ( EventData::EDITING ); + ChangeState ( EventData::GRAB_HANDLE_PANNING ); if( handleNewPosition != mEventData->mPrimaryCursorPosition ) { @@ -642,170 +746,723 @@ void Controller::Impl::OnHandleEvent( const Event& event ) } else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type ) { - if( handleNewPosition != mEventData->mLeftSelectionPosition ) + ChangeState ( EventData::SELECTION_HANDLE_PANNING ); + + if( ( handleNewPosition != mEventData->mLeftSelectionPosition ) && + ( handleNewPosition != mEventData->mRightSelectionPosition ) ) { mEventData->mLeftSelectionPosition = handleNewPosition; + mEventData->mUpdateLeftSelectionPosition = true; } } else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type ) { - if( handleNewPosition != mEventData->mRightSelectionPosition ) + ChangeState ( EventData::SELECTION_HANDLE_PANNING ); + + if( ( handleNewPosition != mEventData->mRightSelectionPosition ) && + ( handleNewPosition != mEventData->mLeftSelectionPosition ) ) { mEventData->mRightSelectionPosition = handleNewPosition; + mEventData->mUpdateRightSelectionPosition = true; } } - } + } // end ( HANDLE_PRESSED == state ) else if( ( HANDLE_RELEASED == state ) || - ( HANDLE_STOP_SCROLLING == state ) ) + handleStopScrolling ) { - if( mEventData->mGrabHandlePopupEnabled ) + CharacterIndex handlePosition = 0u; + if( handleStopScrolling ) { - ChangeState( EventData::EDITING_WITH_POPUP ); + // 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 ); } + if( Event::GRAB_HANDLE_EVENT == event.type ) { mEventData->mUpdateCursorPosition = true; + mEventData->mUpdateInputStyle = true; - if( HANDLE_STOP_SCROLLING == state ) + if( !IsClipboardEmpty() ) { - // 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; + ChangeState( EventData::EDITING_WITH_PASTE_POPUP ); // Moving grabhandle will show Paste Popup + } + + if( handleStopScrolling ) + { + mEventData->mScrollAfterUpdatePosition = mEventData->mPrimaryCursorPosition != handlePosition; + mEventData->mPrimaryCursorPosition = handlePosition; + } + } + else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type ) + { + ChangeState( EventData::SELECTING ); + + if( handleStopScrolling ) + { + mEventData->mUpdateLeftSelectionPosition = ( mEventData->mRightSelectionPosition != handlePosition ); + mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition; - mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, yPosition ); + if( mEventData->mUpdateLeftSelectionPosition ) + { + mEventData->mLeftSelectionPosition = handlePosition; + } + } + } + else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type ) + { + ChangeState( EventData::SELECTING ); - mEventData->mScrollAfterUpdateCursorPosition = true; + if( handleStopScrolling ) + { + mEventData->mUpdateRightSelectionPosition = ( mEventData->mLeftSelectionPosition != handlePosition ); + mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition; + if( mEventData->mUpdateRightSelectionPosition ) + { + 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 Vector2& actualSize = mVisualModel->GetActualSize(); + const Vector2 currentScrollPosition = mEventData->mScrollPosition; mEventData->mScrollPosition.x += xSpeed; ClampHorizontalScroll( actualSize ); - mEventData->mDecoratorUpdated = true; - } + bool endOfScroll = false; + if( Vector2::ZERO == ( currentScrollPosition - mEventData->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 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 ); + + Vector2 position = mEventData->mDecorator->GetPosition( GRAB_HANDLE ); + + // Position the grag handle close to either the left or right edge. + position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width; + + // Get the new handle position. + // The grab handle's position is in decorator coords. Need to transforms to text coords. + const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x, + position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y ); + + mEventData->mUpdateCursorPosition = mEventData->mPrimaryCursorPosition != handlePosition; + mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateCursorPosition; + mEventData->mPrimaryCursorPosition = handlePosition; + mEventData->mUpdateInputStyle = mEventData->mUpdateCursorPosition; + } + else if( leftSelectionHandleEvent || rightSelectionHandleEvent ) + { + // 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. + + ChangeState( EventData::SELECTION_HANDLE_PANNING ); + + Vector2 position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE ); + + // Position the selection handle close to either the left or right edge. + position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width; + + // 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 ); + + if( leftSelectionHandleEvent ) + { + const bool differentHandles = ( mEventData->mLeftSelectionPosition != handlePosition ) && ( mEventData->mRightSelectionPosition != handlePosition ); + mEventData->mUpdateLeftSelectionPosition = endOfScroll || differentHandles; + if( differentHandles ) + { + mEventData->mLeftSelectionPosition = handlePosition; + } + } + else + { + const bool differentHandles = ( mEventData->mRightSelectionPosition != handlePosition ) && ( mEventData->mLeftSelectionPosition != handlePosition ); + mEventData->mUpdateRightSelectionPosition = endOfScroll || differentHandles; + if( differentHandles ) + { + mEventData->mRightSelectionPosition = handlePosition; + } + } + + if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition ) + { + RepositionSelectionHandles(); + + mEventData->mScrollAfterUpdatePosition = true; + } + } + mEventData->mDecoratorUpdated = true; + } // end ( HANDLE_SCROLLING == state ) } -void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY ) +void Controller::Impl::OnSelectEvent( const Event& event ) { if( NULL == mEventData ) { - // Nothing to do if there is no text input. + // Nothing to do if there is no text. return; } - // TODO - Find which word was selected + if( mEventData->mSelectionEnabled ) + { + // 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; - const Vector& glyphs = mVisualModel->mGlyphs; - const Vector::SizeType glyphCount = glyphs.Count(); + // Calculates the logical position from the x,y coords. + RepositionSelectionHandles( xPosition, + yPosition ); - const Vector& positions = mVisualModel->mGlyphPositions; - const Vector::SizeType positionCount = positions.Count(); + mEventData->mUpdateLeftSelectionPosition = true; + mEventData->mUpdateRightSelectionPosition = true; - // Guard against glyphs which did not fit inside the layout - const Vector::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount; + mEventData->mScrollAfterUpdatePosition = ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition ); + } +} - if( count ) - { - float primaryX = positions[0].x + mEventData->mScrollPosition.x; - float secondaryX = positions[count-1].x + glyphs[count-1].width + mEventData->mScrollPosition.x; +void Controller::Impl::OnSelectAllEvent() +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "OnSelectAllEvent mEventData->mSelectionEnabled%s \n", mEventData->mSelectionEnabled?"true":"false"); - // TODO - multi-line selection - const Vector& lines = mVisualModel->mLines; - float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f; + if( NULL == mEventData ) + { + // Nothing to do if there is no text. + return; + } - mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, primaryX, mEventData->mScrollPosition.y, height ); - mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryX, mEventData->mScrollPosition.y, height ); + if( mEventData->mSelectionEnabled ) + { + mEventData->mLeftSelectionPosition = 0u; + mEventData->mRightSelectionPosition = mLogicalModel->mText.Count(); - mEventData->mDecorator->ClearHighlights(); - mEventData->mDecorator->AddHighlight( primaryX, mEventData->mScrollPosition.y, secondaryX, height + mEventData->mScrollPosition.y ); + mEventData->mScrollAfterUpdatePosition = true; + mEventData->mUpdateLeftSelectionPosition = true; + mEventData->mUpdateRightSelectionPosition = true; } } -void Controller::Impl::ChangeState( EventData::State newState ) +void Controller::Impl::RetrieveSelection( std::string& selectedText, bool deleteAfterRetrieval ) { - if( NULL == mEventData ) + if( mEventData->mLeftSelectionPosition == mEventData->mRightSelectionPosition ) { - // Nothing to do if there is no text input. + // Nothing to select if handles are in the same place. + selectedText.clear(); return; } - if( mEventData->mState != newState ) + const bool handlesCrossed = mEventData->mLeftSelectionPosition > mEventData->mRightSelectionPosition; + + //Get start and end position of selection + const CharacterIndex startOfSelectedText = handlesCrossed ? mEventData->mRightSelectionPosition : mEventData->mLeftSelectionPosition; + const Length lengthOfSelectedText = ( handlesCrossed ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition ) - startOfSelectedText; + + // Validate the start and end selection points + if( ( startOfSelectedText + lengthOfSelectedText ) <= mLogicalModel->mText.Count() ) { - // Show different placeholder when switching between active & inactive - bool updatePlaceholder( false ); - if( IsShowingPlaceholderText() && - ( EventData::INACTIVE == newState || - EventData::INACTIVE == mEventData->mState ) ) - { - updatePlaceholder = true; - } + //Get text as a UTF8 string + Vector& utf32Characters = mLogicalModel->mText; - mEventData->mState = newState; + Utf32ToUtf8( &utf32Characters[startOfSelectedText], lengthOfSelectedText, selectedText ); - if( updatePlaceholder ) + if( deleteAfterRetrieval ) // Only delete text if copied successfully { - ReplaceTextWithPlaceholder(); - mEventData->mDecoratorUpdated = true; - } + // Set as input style the style of the first deleted character. + mLogicalModel->RetrieveStyle( startOfSelectedText, mEventData->mInputStyle ); - 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; - } - else if ( EventData::SELECTING == mEventData->mState ) - { - 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->mDecoratorUpdated = true; + mLogicalModel->UpdateTextStyleRuns( startOfSelectedText, -static_cast( lengthOfSelectedText ) ); + + // Delete text between handles + Vector& currentText = mLogicalModel->mText; + + Vector::Iterator first = currentText.Begin() + startOfSelectedText; + Vector::Iterator last = first + lengthOfSelectedText; + currentText.Erase( first, last ); + + // Scroll after delete. + mEventData->mPrimaryCursorPosition = handlesCrossed ? mEventData->mRightSelectionPosition : mEventData->mLeftSelectionPosition; + mEventData->mScrollAfterDelete = true; } - else if( EventData::EDITING == mEventData->mState ) - { - mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); - if( mEventData->mCursorBlinkEnabled ) - { - mEventData->mDecorator->StartCursorBlink(); - } - // Grab handle is not shown until a tap is received whilst EDITING + // Udpade the cursor position and the decorator. + // Scroll after the position is updated if is not scrolling after delete. + mEventData->mUpdateCursorPosition = true; + mEventData->mScrollAfterUpdatePosition = !mEventData->mScrollAfterDelete; + mEventData->mDecoratorUpdated = true; + } +} + +void Controller::Impl::ShowClipboard() +{ + if( mClipboard ) + { + mClipboard.ShowClipboard(); + } +} + +void Controller::Impl::HideClipboard() +{ + if( mClipboard ) + { + mClipboard.HideClipboard(); + } +} + +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 = mEventData->mLeftSelectionPosition; + CharacterIndex selectionEnd = mEventData->mRightSelectionPosition; + + if( selectionStart == selectionEnd ) + { + // Nothing to select if handles are in the same place. + return; + } + + mEventData->mDecorator->ClearHighlights(); + + 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; + + // TODO: Better algorithm to create the highlight box. + // TODO: Multi-line. + + // Get the height of the line. + const Vector& lines = mVisualModel->mLines; + const LineRun& firstLine = *lines.Begin(); + const float height = firstLine.ascender + -firstLine.descender; + + const bool isLastCharacter = selectionEnd >= mLogicalModel->mText.Count(); + const bool startDirection = ( ( NULL == modelCharacterDirectionsBuffer ) ? false : *( modelCharacterDirectionsBuffer + selectionStart ) ); + const bool endDirection = ( ( NULL == modelCharacterDirectionsBuffer ) ? false : *( modelCharacterDirectionsBuffer + ( selectionEnd - ( isLastCharacter ? 1u : 0u ) ) ) ); + + // Swap the indices if the start is greater than the end. + const bool indicesSwapped = selectionStart > selectionEnd; + + // Tell the decorator to flip the selection handles if needed. + mEventData->mDecorator->SetSelectionHandleFlipState( indicesSwapped, startDirection, endDirection ); + + if( indicesSwapped ) + { + std::swap( selectionStart, selectionEnd ); + } + + // 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 ); + + // Check if the first glyph is a ligature that must be broken like Latin ff, fi, or Arabic ï»», etc which needs special code. + const Length numberOfCharactersStart = *( charactersPerGlyphBuffer + glyphStart ); + bool splitStartGlyph = ( numberOfCharactersStart > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionStart ) ); + + // Check if the last glyph is a ligature that must be broken like Latin ff, fi, or Arabic ï»», etc which needs special code. + const Length numberOfCharactersEnd = *( charactersPerGlyphBuffer + glyphEnd ); + bool splitEndGlyph = ( glyphStart != glyphEnd ) && ( numberOfCharactersEnd > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionEndMinusOne ) ); + + const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset; + + // Traverse the glyphs. + for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index ) + { + const GlyphInfo& glyph = *( glyphsBuffer + index ); + const Vector2& position = *( positionsBuffer + index ); + + 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. + + const float glyphAdvance = glyph.advance / static_cast( 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 ); + } + + // 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 ); + + const float xPosition = position.x - glyph.xBearing + offset.x + glyphAdvance * static_cast( isCurrentRightToLeft ? ( numberOfCharactersStart - interGlyphIndex - numberOfCharacters ) : interGlyphIndex ); + + mEventData->mDecorator->AddHighlight( xPosition, + offset.y, + xPosition + static_cast( numberOfCharacters ) * glyphAdvance, + offset.y + height ); + + splitStartGlyph = false; + continue; + } + + if( splitEndGlyph && ( index == glyphEnd ) ) + { + // 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( 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. + { + isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + selectionEnd ); + } + + const Length numberOfCharacters = numberOfCharactersEnd - interGlyphIndex; + + const float xPosition = position.x - glyph.xBearing + offset.x + ( isCurrentRightToLeft ? ( glyphAdvance * static_cast( numberOfCharacters ) ) : 0.f ); + mEventData->mDecorator->AddHighlight( xPosition, + offset.y, + xPosition + static_cast( interGlyphIndex ) * glyphAdvance, + offset.y + height ); + + splitEndGlyph = false; + continue; + } + + const float xPosition = position.x - glyph.xBearing + offset.x; + mEventData->mDecorator->AddHighlight( xPosition, + offset.y, + xPosition + glyph.advance, + offset.y + height ); + } + + CursorInfo primaryCursorInfo; + GetCursorPosition( mEventData->mLeftSelectionPosition, + primaryCursorInfo ); + + CursorInfo secondaryCursorInfo; + GetCursorPosition( mEventData->mRightSelectionPosition, + secondaryCursorInfo ); + + const Vector2 primaryPosition = primaryCursorInfo.primaryPosition + offset; + const Vector2 secondaryPosition = secondaryCursorInfo.primaryPosition + offset; + + mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, + primaryPosition.x, + primaryCursorInfo.lineOffset + offset.y, + primaryCursorInfo.lineHeight ); + + mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, + secondaryPosition.x, + secondaryCursorInfo.lineOffset + offset.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; +} + +void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY ) +{ + if( NULL == mEventData ) + { + // Nothing to do if there is no text input. + return; + } + + 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 ) ) + { + // Nothing to do if there is no text. + return; + } + + // 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( selectionStart == selectionEnd ) + { + ChangeState( EventData::EDITING ); + // Nothing to select. i.e. a white space, out of bounds + return; + } + + mEventData->mLeftSelectionPosition = selectionStart; + mEventData->mRightSelectionPosition = selectionEnd; +} + +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 + */ + + TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::NONE; + + if( EventData::SELECTING == mEventData->mState ) + { + buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::CUT | TextSelectionPopup::COPY ); + + if( !IsClipboardEmpty() ) + { + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) ); + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) ); + } + + if( !mEventData->mAllTextSelected ) + { + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::SELECT_ALL ) ); + } + } + else if( EventData::EDITING_WITH_POPUP == mEventData->mState ) + { + if( mLogicalModel->mText.Count() && !IsShowingPlaceholderText() ) + { + buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL ); + } + + if( !IsClipboardEmpty() ) + { + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) ); + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) ); + } + } + else if( EventData::EDITING_WITH_PASTE_POPUP == mEventData->mState ) + { + if ( !IsClipboardEmpty() ) + { + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) ); + buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) ); + } + } + + mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow ); +} + +void Controller::Impl::ChangeState( EventData::State newState ) +{ + if( NULL == mEventData ) + { + // Nothing to do if there is no text input. + return; + } + + DALI_LOG_INFO( gLogFilter, Debug::General, "ChangeState state:%d newstate:%d\n", mEventData->mState, newState ); + + if( mEventData->mState != newState ) + { + mEventData->mState = newState; + + 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; + HideClipboard(); } - else if( EventData::EDITING_WITH_POPUP == mEventData->mState ) + else if( EventData::INTERRUPTED == mEventData->mState) + { + 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; + HideClipboard(); + } + else if( EventData::SELECTING == mEventData->mState ) + { + 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 ) + { + SetPopupButtons(); + mEventData->mDecorator->SetPopupActive( true ); + } + mEventData->mDecoratorUpdated = true; + } + else if( EventData::EDITING == mEventData->mState ) { 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 ) + { + mEventData->mDecorator->SetPopupActive( false ); + } + mEventData->mDecoratorUpdated = true; + HideClipboard(); + } + else if( EventData::EDITING_WITH_POPUP == mEventData->mState ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_POPUP \n", newState ); + + mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); + if( mEventData->mCursorBlinkEnabled ) + { + mEventData->mDecorator->StartCursorBlink(); + } if( mEventData->mSelectionEnabled ) { - mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true ); - mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true ); + mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false ); + mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false ); + } + else + { + mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true ); } if( mEventData->mGrabHandlePopupEnabled ) { + SetPopupButtons(); mEventData->mDecorator->SetPopupActive( true ); } + HideClipboard(); + mEventData->mDecoratorUpdated = true; + } + else if( EventData::EDITING_WITH_GRAB_HANDLE == mEventData->mState ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_GRAB_HANDLE \n", newState ); + + 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 ); + if( mEventData->mGrabHandlePopupEnabled ) + { + mEventData->mDecorator->SetPopupActive( false ); + } + mEventData->mDecoratorUpdated = true; + HideClipboard(); + } + else if( EventData::SELECTION_HANDLE_PANNING == mEventData->mState ) + { + 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; + } + else if( EventData::GRAB_HANDLE_PANNING == mEventData->mState ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GRAB_HANDLE_PANNING \n", newState ); + + 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 ) + { + mEventData->mDecorator->SetPopupActive( false ); + } + mEventData->mDecoratorUpdated = true; + } + else if( EventData::EDITING_WITH_PASTE_POPUP == mEventData->mState ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_PASTE_POPUP \n", newState ); + + 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 ) + { + SetPopupButtons(); + mEventData->mDecorator->SetPopupActive( true ); + } + HideClipboard(); mEventData->mDecoratorUpdated = true; } } @@ -829,12 +1486,65 @@ LineIndex Controller::Impl::GetClosestLine( float y ) const } } + if( lineIndex == 0 ) + { + return 0; + } + return lineIndex-1; } +void Controller::Impl::FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex ) +{ + CharacterIndex hitCharacter = GetClosestCursorIndex( visualX, visualY ); + DALI_ASSERT_DEBUG( hitCharacter <= mLogicalModel->mText.Count() && "GetClosestCursorIndex returned out of bounds index" ); + + if( mLogicalModel->mText.Count() == 0 ) + { + return; // if model empty + } + + if( hitCharacter >= mLogicalModel->mText.Count() ) + { + // Closest hit character is the last character. + if( hitCharacter == mLogicalModel->mText.Count() ) + { + hitCharacter--; //Hit character index set to last character in logical model + } + else + { + // hitCharacter is out of bounds + return; + } + } + + startIndex = hitCharacter; + endIndex = hitCharacter; + bool isHitCharacterWhitespace = TextAbstraction::IsWhiteSpace( mLogicalModel->mText[hitCharacter] ); + + // Find the start and end of the text + for( startIndex = hitCharacter; startIndex > 0; --startIndex ) + { + if( isHitCharacterWhitespace != TextAbstraction::IsWhiteSpace( mLogicalModel->mText[ startIndex-1 ] ) ) + { + break; + } + } + const CharacterIndex pastTheEnd = mLogicalModel->mText.Count(); + for( endIndex = hitCharacter + 1u; endIndex < pastTheEnd; ++endIndex ) + { + if( isHitCharacterWhitespace != TextAbstraction::IsWhiteSpace( mLogicalModel->mText[ endIndex ] ) ) + { + break; + } + } +} + CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX, float visualY ) { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GetClosestCursorIndex %p closest visualX %f visualY %f\n", this, visualX, visualY ); + if( NULL == mEventData ) { // Nothing to do if there is no text input. @@ -845,8 +1555,8 @@ CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX, const Length numberOfGlyphs = mVisualModel->mGlyphs.Count(); const Length numberOfLines = mVisualModel->mLines.Count(); - if( 0 == numberOfGlyphs || - 0 == numberOfLines ) + if( ( 0 == numberOfGlyphs ) || + ( 0 == numberOfLines ) ) { return logicalIndex; } @@ -881,36 +1591,68 @@ CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX, // Traverses glyphs in visual order. To do that use the visual to logical conversion table. CharacterIndex visualIndex = startCharacter; + Length numberOfCharacters = 0u; for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex ) { // The character in logical order. const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex; - // The first glyph for that character in logical order. - const GlyphIndex glyphLogicalOrderIndex = *( charactersToGlyphBuffer + characterLogicalOrderIndex ); + // Get the script of the character. + const Script script = mLogicalModel->GetScript( characterLogicalOrderIndex ); // The number of glyphs for that character const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex ); + ++numberOfCharacters; - // Get the metrics for the group of glyphs. - GlyphMetrics glyphMetrics; - GetGlyphsMetrics( glyphLogicalOrderIndex, - numberOfGlyphs, - glyphMetrics, - mVisualModel, - mFontClient ); - const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex ); + if( 0u != numberOfGlyphs ) + { + // Get the first character/glyph of the group of glyphs. + const CharacterIndex firstVisualCharacterIndex = 1u + visualIndex - numberOfCharacters; + const CharacterIndex firstLogicalCharacterIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + firstVisualCharacterIndex ) : firstVisualCharacterIndex; + const GlyphIndex firstLogicalGlyphIndex = *( charactersToGlyphBuffer + firstLogicalCharacterIndex ); - const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance; + // Get the metrics for the group of glyphs. + GlyphMetrics glyphMetrics; + GetGlyphsMetrics( firstLogicalGlyphIndex, + numberOfGlyphs, + glyphMetrics, + mVisualModel, + mMetrics ); - if( visualX < glyphX ) - { - matched = true; - break; + // Get the position of the first glyph. + const Vector2& position = *( positionsBuffer + firstLogicalGlyphIndex ); + + // Whether the glyph can be split, like Latin ligatures fi, ff or Arabic ï»». + const bool isInterglyphIndex = ( numberOfCharacters > numberOfGlyphs ) && HasLigatureMustBreak( script ); + const Length numberOfBlocks = isInterglyphIndex ? numberOfCharacters : 1u; + const float glyphAdvance = glyphMetrics.advance / static_cast( numberOfBlocks ); + + GlyphIndex index = 0u; + for( ; !matched && ( index < numberOfBlocks ); ++index ) + { + // Find the mid-point of the area containing the glyph + const float glyphCenter = -glyphMetrics.xBearing + position.x + ( static_cast( index ) + 0.5f ) * glyphAdvance; + + if( visualX < glyphCenter ) + { + matched = true; + break; + } + } + + if( matched ) + { + visualIndex = firstVisualCharacterIndex + index; + break; + } + + numberOfCharacters = 0u; } + } + // Return the logical position of the cursor in characters. if( !matched ) @@ -918,7 +1660,12 @@ CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX, visualIndex = endCharacter; } - return hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex; + logicalIndex = hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex; + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex ); + + DALI_ASSERT_DEBUG( ( logicalIndex <= mLogicalModel->mText.Count() && logicalIndex >= 0 ) && "GetClosestCursorIndex - Out of bounds index" ); + + return logicalIndex; } void Controller::Impl::GetCursorPosition( CharacterIndex logical, @@ -926,62 +1673,85 @@ void Controller::Impl::GetCursorPosition( CharacterIndex logical, { // 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 ) + const Length numberOfCharacters = mLogicalModel->mText.Count(); + if( !IsShowingRealText() ) { - // There is zero characters. Get the default font. + // 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. + + cursorInfo.lineOffset = 0.f; + cursorInfo.lineHeight = GetDefaultFontLineHeight(); + cursorInfo.primaryCursorHeight = cursorInfo.lineHeight; - FontId defaultFontId = 0u; - if( NULL == mFontDefaults ) + switch( mLayoutEngine.GetHorizontalAlignment() ) { - defaultFontId = mFontClient.GetFontId( EMPTY_STRING, - EMPTY_STRING ); + case LayoutEngine::HORIZONTAL_ALIGN_BEGIN: + { + cursorInfo.primaryPosition.x = 0.f; + break; + } + case LayoutEngine::HORIZONTAL_ALIGN_CENTER: + { + cursorInfo.primaryPosition.x = floorf( 0.5f * mVisualModel->mControlSize.width ); + break; + } + case LayoutEngine::HORIZONTAL_ALIGN_END: + { + cursorInfo.primaryPosition.x = mVisualModel->mControlSize.width - mEventData->mDecorator->GetCursorWidth(); + break; + } } - else + + switch( mLayoutEngine.GetVerticalAlignment() ) { - defaultFontId = mFontDefaults->GetFontId( mFontClient ); + case LayoutEngine::VERTICAL_ALIGN_TOP: + { + cursorInfo.primaryPosition.y = 0.f; + break; + } + case LayoutEngine::VERTICAL_ALIGN_CENTER: + { + cursorInfo.primaryPosition.y = floorf( 0.5f * ( mVisualModel->mControlSize.height - cursorInfo.lineHeight ) ); + break; + } + case LayoutEngine::VERTICAL_ALIGN_BOTTOM: + { + cursorInfo.primaryPosition.y = mVisualModel->mControlSize.height - cursorInfo.lineHeight; + break; + } } - 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; + // Check if the logical position is the first or the last one of the text. + const bool isFirstPosition = 0u == logical; + const bool isLastPosition = numberOfCharacters == logical; - // Decrease the logical index if it's the last one. - if( isLastPosition ) - { - --logical; - } + // 'logical' is the logical 'cursor' index. + // Get the next and current logical 'character' index. + const CharacterIndex nextCharacterIndex = logical; + const CharacterIndex characterIndex = isFirstPosition ? logical : logical - 1u; - // Get the direction of the character and the previous one. + // Get the direction of the character and the next one. const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL; CharacterDirection isCurrentRightToLeft = false; - CharacterDirection isPreviousRightToLeft = false; + CharacterDirection isNextRightToLeft = false; if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right. { - isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + logical ); - isPreviousRightToLeft = *( modelCharacterDirectionsBuffer + previousLogical ); + isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + characterIndex ); + isNextRightToLeft = *( modelCharacterDirectionsBuffer + nextCharacterIndex ); } // Get the line where the character is laid-out. - const LineRun* modelLines = mVisualModel->mLines.Begin(); + const LineRun* const modelLines = mVisualModel->mLines.Begin(); - const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( logical ); + const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( characterIndex ); const LineRun& line = *( modelLines + lineIndex ); // Get the paragraph's direction. @@ -989,123 +1759,150 @@ void Controller::Impl::GetCursorPosition( CharacterIndex logical, // Check whether there is an alternative position: - cursorInfo.isSecondaryCursor = ( isCurrentRightToLeft != isPreviousRightToLeft ) || - ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) ); + cursorInfo.isSecondaryCursor = ( !isLastPosition && ( isCurrentRightToLeft != isNextRightToLeft ) ) || + ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) ); - // Set the line height. + // Set the line offset and height. + cursorInfo.lineOffset = 0.f; cursorInfo.lineHeight = line.ascender + -line.descender; - // Convert the cursor position into the glyph position. - CharacterIndex characterIndex = logical; - if( cursorInfo.isSecondaryCursor && - ( isRightToLeftParagraph != isCurrentRightToLeft ) ) + // Calculate the primary cursor. + + CharacterIndex index = characterIndex; + if( cursorInfo.isSecondaryCursor ) { - characterIndex = previousLogical; + // If there is a secondary position, the primary cursor may be in a different place than the logical index. + + if( isLastPosition ) + { + // The position of the cursor after the last character needs special + // care depending on its direction and the direction of the paragraph. + + // Need to find the first character after the last character with the paragraph's direction. + // i.e l0 l1 l2 r0 r1 should find r0. + + // TODO: check for more than one line! + index = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u; + index = mLogicalModel->GetLogicalCharacterIndex( index ); + } + else + { + index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? characterIndex : nextCharacterIndex; + } } - const GlyphIndex currentGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex ); - const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex ); - const Length numberOfCharacters = *( mVisualModel->mCharactersPerGlyph.Begin() +currentGlyphIndex ); + const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin(); + const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin(); + const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin(); + const CharacterIndex* const glyphsToCharactersBuffer = mVisualModel->mGlyphsToCharacters.Begin(); + const Vector2* const glyphPositionsBuffer = mVisualModel->mGlyphPositions.Begin(); + + // Convert the cursor position into the glyph position. + const GlyphIndex primaryGlyphIndex = *( charactersToGlyphBuffer + index ); + const Length primaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index ); + const Length primaryNumberOfCharacters = *( charactersPerGlyphBuffer + primaryGlyphIndex ); // Get the metrics for the group of glyphs. GlyphMetrics glyphMetrics; - GetGlyphsMetrics( currentGlyphIndex, - numberOfGlyphs, + GetGlyphsMetrics( primaryGlyphIndex, + primaryNumberOfGlyphs, glyphMetrics, mVisualModel, - mFontClient ); + mMetrics ); + + // Whether to add the glyph's advance to the cursor position. + // i.e if the paragraph is left to right and the logical cursor is zero, the position is the position of the first glyph and the advance is not added, + // if the logical cursor is one, the position is the position of the first glyph and the advance is added. + // A 'truth table' was build and an online Karnaugh map tool was used to simplify the logic. + // + // FLCP A + // ------ + // 0000 1 + // 0001 1 + // 0010 0 + // 0011 0 + // 0100 1 + // 0101 0 + // 0110 1 + // 0111 0 + // 1000 0 + // 1001 x + // 1010 x + // 1011 1 + // 1100 x + // 1101 x + // 1110 x + // 1111 x + // + // Where F -> isFirstPosition + // L -> isLastPosition + // C -> isCurrentRightToLeft + // P -> isRightToLeftParagraph + // A -> Whether to add the glyph's advance. + + const bool addGlyphAdvance = ( ( isLastPosition && !isRightToLeftParagraph ) || + ( isFirstPosition && isRightToLeftParagraph ) || + ( !isFirstPosition && !isLastPosition && !isCurrentRightToLeft ) ); + + float glyphAdvance = addGlyphAdvance ? glyphMetrics.advance : 0.f; - float interGlyphAdvance = 0.f; if( !isLastPosition && - ( numberOfCharacters > 1u ) ) + ( primaryNumberOfCharacters > 1u ) ) { - const CharacterIndex firstIndex = *( mVisualModel->mGlyphsToCharacters.Begin() + currentGlyphIndex ); - interGlyphAdvance = static_cast( characterIndex - firstIndex ) * glyphMetrics.advance / static_cast( numberOfCharacters ); - } - - // Get the glyph position and x bearing. - const Vector2& currentPosition = *( mVisualModel->mGlyphPositions.Begin() + currentGlyphIndex ); - - // Set the cursor's height. - cursorInfo.primaryCursorHeight = glyphMetrics.fontHeight; + const CharacterIndex firstIndex = *( glyphsToCharactersBuffer + primaryGlyphIndex ); - // Set the position. - cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + currentPosition.x + ( isCurrentRightToLeft ? glyphMetrics.advance : interGlyphAdvance ); - cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender; - - if( isLastPosition ) - { - // The position of the cursor after the last character needs special - // care depending on its direction and the direction of the paragraph. + bool isCurrentRightToLeft = false; + if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right. + { + isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + index ); + } - if( cursorInfo.isSecondaryCursor ) + Length numberOfGlyphAdvance = ( isFirstPosition ? 0u : 1u ) + characterIndex - firstIndex; + if( isCurrentRightToLeft ) { - // 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. + numberOfGlyphAdvance = primaryNumberOfCharacters - numberOfGlyphAdvance; + } - // TODO: check for more than one line! - characterIndex = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u; - characterIndex = mLogicalModel->GetLogicalCharacterIndex( characterIndex ); + glyphAdvance = static_cast( numberOfGlyphAdvance ) * glyphMetrics.advance / static_cast( primaryNumberOfCharacters ); + } - const GlyphIndex glyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex ); - const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex ); + // Get the glyph position and x bearing. + const Vector2& primaryPosition = *( glyphPositionsBuffer + primaryGlyphIndex ); - const Vector2& position = *( mVisualModel->mGlyphPositions.Begin() + glyphIndex ); + // Set the primary cursor's height. + cursorInfo.primaryCursorHeight = cursorInfo.isSecondaryCursor ? 0.5f * glyphMetrics.fontHeight : glyphMetrics.fontHeight; - // Get the metrics for the group of glyphs. - GlyphMetrics glyphMetrics; - GetGlyphsMetrics( glyphIndex, - numberOfGlyphs, - glyphMetrics, - mVisualModel, - mFontClient ); + // Set the primary cursor's position. + cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + primaryPosition.x + glyphAdvance; + cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender; - cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + position.x + ( isRightToLeftParagraph ? 0.f : glyphMetrics.advance ); + // Calculate the secondary cursor. - cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender; - } - else + if( cursorInfo.isSecondaryCursor ) + { + // Set the secondary cursor's height. + cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight; + + CharacterIndex index = characterIndex; + if( !isLastPosition ) { - if( !isCurrentRightToLeft ) - { - cursorInfo.primaryPosition.x += glyphMetrics.advance; - } - else - { - cursorInfo.primaryPosition.x -= glyphMetrics.advance; - } + index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? nextCharacterIndex : characterIndex; } - } - // 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 ); + const GlyphIndex secondaryGlyphIndex = *( charactersToGlyphBuffer + index ); + const Length secondaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index ); - // Get the glyph position. - const Vector2& previousPosition = *( mVisualModel->mGlyphPositions.Begin() + previousGlyphIndex ); + const Vector2& secondaryPosition = *( glyphPositionsBuffer + secondaryGlyphIndex ); - // Get the metrics for the group of glyphs. - GlyphMetrics glyphMetrics; - GetGlyphsMetrics( previousGlyphIndex, - numberOfGlyphs, + GetGlyphsMetrics( secondaryGlyphIndex, + secondaryNumberOfGlyphs, glyphMetrics, mVisualModel, - mFontClient ); - - // Set the cursor position and height. - cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + previousPosition.x + ( ( ( isLastPosition && !isCurrentRightToLeft ) || - ( !isLastPosition && isCurrentRightToLeft ) ) ? glyphMetrics.advance : 0.f ); - - cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight; + mMetrics ); + // Set the secondary cursor's position. + cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + secondaryPosition.x + ( isCurrentRightToLeft ? 0.f : glyphMetrics.advance ); cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender ); - - // Update the primary cursor height as well. - cursorInfo.primaryCursorHeight *= 0.5f; } } @@ -1119,25 +1916,27 @@ CharacterIndex Controller::Impl::CalculateNewCursorIndex( CharacterIndex index ) 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(); - Length numberOfCharacters = 0u; - if( TextAbstraction::LATIN == script ) + GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index ); + Length numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex ); + + 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 ï»», ... + numberOfCharacters = 1u; + } } else { - GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index ); - numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex ); - while( 0u == numberOfCharacters ) { - numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex ); ++glyphIndex; + numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex ); } } @@ -1153,19 +1952,17 @@ CharacterIndex Controller::Impl::CalculateNewCursorIndex( CharacterIndex index ) 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 ) { // Nothing to do if there is no text input. + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition no event data\n" ); return; } - CursorInfo cursorInfo; - GetCursorPosition( mEventData->mPrimaryCursorPosition, - cursorInfo ); - - const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset; + const Vector2 offset = mEventData->mScrollPosition + ( IsShowingRealText() ? mAlignmentOffset : Vector2::ZERO ); const Vector2 cursorPosition = cursorInfo.primaryPosition + offset; // Sets the cursor position. @@ -1174,29 +1971,46 @@ void Controller::Impl::UpdateCursorPosition() 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 + offset.y, cursorInfo.lineHeight ); 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 ); + } + + // 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 ); + } + else + { + mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); + } } else { - mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); + 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 ) ) @@ -1204,29 +2018,28 @@ void Controller::Impl::UpdateSelectionHandle( HandleType handleType ) return; } - const bool leftSelectionHandle = LEFT_SELECTION_HANDLE == handleType; - const CharacterIndex index = leftSelectionHandle ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition; - - 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 + offset.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 ) { // Clamp between -space & 0 (and the text alignment). - if( actualSize.width > mControlSize.width ) + + if( actualSize.width > mVisualModel->mControlSize.width ) { - const float space = ( actualSize.width - mControlSize.width ) + mAlignmentOffset.x; + const float space = ( actualSize.width - mVisualModel->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; @@ -1241,9 +2054,9 @@ void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize ) void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize ) { // Clamp between -space & 0 (and the text alignment). - if( actualSize.height > mControlSize.height ) + if( actualSize.height > mVisualModel->mControlSize.height ) { - const float space = ( actualSize.height - mControlSize.height ) + mAlignmentOffset.y; + const float space = ( actualSize.height - mVisualModel->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; @@ -1255,37 +2068,35 @@ void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize ) } } -void Controller::Impl::ScrollToMakeCursorVisible() +void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position ) { - if( NULL == mEventData ) - { - // Nothing to do if there is no text input. - return; - } + // position is in actor's coords. + const float positionEnd = position.x + ( mEventData->mDecorator ? mEventData->mDecorator->GetCursorWidth() : 0.f ); - const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR ); + // Transform the position to decorator coords. + const float offset = mEventData->mScrollPosition.x + mAlignmentOffset.x; + const float decoratorPositionBegin = position.x + offset; + const float decoratorPositionEnd = positionEnd + offset; - Vector2 offset; - bool updateDecorator = false; - if( primaryCursorPosition.x < 0.f ) + if( decoratorPositionBegin < 0.f ) { - offset.x = -primaryCursorPosition.x; - mEventData->mScrollPosition.x += offset.x; - updateDecorator = true; + mEventData->mScrollPosition.x = -position.x - mAlignmentOffset.x; } - else if( primaryCursorPosition.x > mControlSize.width ) + else if( decoratorPositionEnd > mVisualModel->mControlSize.width ) { - offset.x = mControlSize.width - primaryCursorPosition.x; - mEventData->mScrollPosition.x += offset.x; - updateDecorator = true; + mEventData->mScrollPosition.x = mVisualModel->mControlSize.width - positionEnd - mAlignmentOffset.x; } +} - if( updateDecorator && mEventData->mDecorator ) - { - mEventData->mDecorator->UpdatePositions( offset ); - } +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 offset to match the cursor position before the character was deleted. + mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x; - // TODO : calculate the vertical scroll. + ClampHorizontalScroll( mVisualModel->GetActualSize() ); } void Controller::Impl::RequestRelayout()