X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller.cpp;h=91f8673e3d0b7881aec2196170742616deb9f5a8;hb=42d2c0d276f9821adf75b66b190d6dcfb65238f3;hp=f6bc9169c46ec9f975f042dc447f0afbdc6d17aa;hpb=f6c75f1c09830c77249b5620a324e083427167d4;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git diff --git a/dali-toolkit/internal/text/text-controller.cpp b/dali-toolkit/internal/text/text-controller.cpp index f6bc916..91f8673 100644 --- a/dali-toolkit/internal/text/text-controller.cpp +++ b/dali-toolkit/internal/text/text-controller.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015 Samsung Electronics Co., Ltd. + * Copyright (c) 2016 Samsung Electronics Co., Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -20,44 +20,35 @@ // EXTERNAL INCLUDES #include -#include +#include #include -#include +#include +#include // INTERNAL INCLUDES #include #include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include - -using std::vector; +#include +#include +#include namespace { +#if defined(DEBUG_ENABLED) + Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS"); +#endif + const float MAX_FLOAT = std::numeric_limits::max(); -const std::string EMPTY_STRING; -enum ModifyType -{ - REPLACE_TEXT, ///< Replace the entire text - INSERT_TEXT, ///< Insert characters at the current cursor position - DELETE_TEXT ///< Delete a character at the current cursor position -}; +const std::string EMPTY_STRING(""); -struct ModifyEvent +float ConvertToEven( float value ) { - ModifyType type; - std::string text; -}; + int intValue(static_cast( value )); + return static_cast(intValue % 2 == 0) ? intValue : (intValue + 1); +} } // namespace @@ -70,1468 +61,3015 @@ namespace Toolkit namespace Text { -struct Controller::TextInput +/** + * @brief Adds a new font description run for the selected text. + * + * The new font parameters are added after the call to this method. + * + * @param[in] eventData The event data pointer. + * @param[in] logicalModel The logical model where to add the new font description run. + * @param[out] startOfSelectedText Index to the first selected character. + * @param[out] lengthOfSelectedText Number of selected characters. + */ +FontDescriptionRun& UpdateSelectionFontStyleRun( EventData* eventData, + LogicalModelPtr logicalModel, + CharacterIndex& startOfSelectedText, + Length& lengthOfSelectedText ) { - // Used to queue input events until DoRelayout() - enum EventType - { - KEYBOARD_FOCUS_GAIN_EVENT, - KEYBOARD_FOCUS_LOST_EVENT, - CURSOR_KEY_EVENT, - TAP_EVENT, - PAN_EVENT, - GRAB_HANDLE_EVENT - }; + const bool handlesCrossed = eventData->mLeftSelectionPosition > eventData->mRightSelectionPosition; - union Param - { - int mInt; - unsigned int mUint; - float mFloat; - }; + // Get start and end position of selection + startOfSelectedText = handlesCrossed ? eventData->mRightSelectionPosition : eventData->mLeftSelectionPosition; + lengthOfSelectedText = ( handlesCrossed ? eventData->mLeftSelectionPosition : eventData->mRightSelectionPosition ) - startOfSelectedText; - struct Event - { - Event( EventType eventType ) - : type( eventType ) - { - p1.mInt = 0; - p2.mInt = 0; - } + // Add the font run. + const VectorBase::SizeType numberOfRuns = logicalModel->mFontDescriptionRuns.Count(); + logicalModel->mFontDescriptionRuns.Resize( numberOfRuns + 1u ); - EventType type; - Param p1; - Param p2; - Param p3; - }; + FontDescriptionRun& fontDescriptionRun = *( logicalModel->mFontDescriptionRuns.Begin() + numberOfRuns ); - enum State - { - INACTIVE, - SELECTING, - EDITING - }; + fontDescriptionRun.characterRun.characterIndex = startOfSelectedText; + fontDescriptionRun.characterRun.numberOfCharacters = lengthOfSelectedText; + + // Recalculate the selection highlight as the metrics may have changed. + eventData->mUpdateLeftSelectionPosition = true; + eventData->mUpdateRightSelectionPosition = true; + eventData->mUpdateHighlightBox = true; - TextInput( LogicalModelPtr logicalModel, - VisualModelPtr visualModel, - DecoratorPtr decorator ) - : mLogicalModel( logicalModel ), - mVisualModel( visualModel ), - mDecorator( decorator ), - mState( INACTIVE ), - mPrimaryCursorPosition( 0u ), - mSecondaryCursorPosition( 0u ), - mDecoratorUpdated( false ), - mCursorBlinkEnabled( true ), - mGrabHandleEnabled( false ), - mGrabHandlePopupEnabled( false ), - mSelectionEnabled( false ), - mHorizontalScrollingEnabled( true ), - mVerticalScrollingEnabled( false ), - mUpdateCursorPosition( false ) + return fontDescriptionRun; +} + +// public : Constructor. + +ControllerPtr Controller::New() +{ + return ControllerPtr( new Controller() ); +} + +ControllerPtr Controller::New( ControlInterface* controlInterface ) +{ + return ControllerPtr( new Controller( controlInterface ) ); +} + +ControllerPtr Controller::New( ControlInterface* controlInterface, + EditableControlInterface* editableControlInterface ) +{ + return ControllerPtr( new Controller( controlInterface, + editableControlInterface ) ); +} + +// public : Configure the text controller. + +void Controller::EnableTextInput( DecoratorPtr decorator ) +{ + if( NULL == mImpl->mEventData ) { + mImpl->mEventData = new EventData( decorator ); } +} - /** - * @brief Helper to move the cursor, grab handle etc. - */ - bool ProcessInputEvents( const Vector2& controlSize ) - { - mDecoratorUpdated = false; +void Controller::SetGlyphType( TextAbstraction::GlyphType glyphType ) +{ + // Metrics for bitmap & vector based glyphs are different + mImpl->mMetrics->SetGlyphType( glyphType ); - if( mDecorator ) - { - for( vector::iterator iter = mEventQueue.begin(); iter != mEventQueue.end(); ++iter ) - { - switch( iter->type ) - { - case KEYBOARD_FOCUS_GAIN_EVENT: - { - OnKeyboardFocus( true ); - break; - } - case KEYBOARD_FOCUS_LOST_EVENT: - { - OnKeyboardFocus( false ); - break; - } - case CURSOR_KEY_EVENT: - { - OnCursorKeyEvent( *iter ); - break; - } - case TAP_EVENT: - { - OnTapEvent( *iter ); - break; - } - case PAN_EVENT: - { - OnPanEvent( *iter, controlSize ); - break; - } - case GRAB_HANDLE_EVENT: - { - OnGrabHandleEvent( *iter ); - break; - } - } - } - } + // Clear the font-specific data + ClearFontData(); - // The cursor must also be repositioned after inserts into the model - if( mUpdateCursorPosition ) - { - UpdateCursorPosition(); - mUpdateCursorPosition = false; - } + mImpl->RequestRelayout(); +} - mEventQueue.clear(); +void Controller::SetMarkupProcessorEnabled( bool enable ) +{ + mImpl->mMarkupProcessorEnabled = enable; +} - return mDecoratorUpdated; - } +bool Controller::IsMarkupProcessorEnabled() const +{ + return mImpl->mMarkupProcessorEnabled; +} + +void Controller::SetAutoScrollEnabled( bool enable ) +{ + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetAutoScrollEnabled[%s] SingleBox[%s]-> [%p]\n", (enable)?"true":"false", ( mImpl->mLayoutEngine.GetLayout() == LayoutEngine::SINGLE_LINE_BOX)?"true":"false", this ); - void OnKeyboardFocus( bool hasFocus ) + if ( mImpl->mLayoutEngine.GetLayout() == LayoutEngine::SINGLE_LINE_BOX ) { - if( !hasFocus ) + if ( enable ) { - ChangeState( INACTIVE ); + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetAutoScrollEnabled for SINGLE_LINE_BOX\n" ); + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + LAYOUT | + ALIGN | + UPDATE_LAYOUT_SIZE | + UPDATE_DIRECTION | + REORDER ); + } else { - ChangeState( EDITING ); + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetAutoScrollEnabled Disabling autoscroll\n"); + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + LAYOUT | + ALIGN | + UPDATE_LAYOUT_SIZE | + REORDER ); } - } - void OnCursorKeyEvent( const Event& event ) + mImpl->mAutoScrollEnabled = enable; + mImpl->RequestRelayout(); + } + else { - int keyCode = event.p1.mInt; - - if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ) - { - // TODO - } - else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode ) - { - // TODO - } - else if( Dali::DALI_KEY_CURSOR_UP == keyCode ) - { - // TODO - } - else if( Dali::DALI_KEY_CURSOR_DOWN == keyCode ) - { - // TODO - } + DALI_LOG_WARNING( "Attempted AutoScrolling on a non SINGLE_LINE_BOX, request ignored\n" ); + mImpl->mAutoScrollEnabled = false; } +} + +bool Controller::IsAutoScrollEnabled() const +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::IsAutoScrollEnabled[%s]\n", (mImpl->mAutoScrollEnabled)?"true":"false" ); + + return mImpl->mAutoScrollEnabled; +} + +CharacterDirection Controller::GetAutoScrollDirection() const +{ + return mImpl->mAutoScrollDirectionRTL; +} - void HandleCursorKey( int keyCode ) +float Controller::GetAutoScrollLineAlignment() const +{ + float offset = 0.f; + + if( mImpl->mVisualModel && + ( 0u != mImpl->mVisualModel->mLines.Count() ) ) { - // TODO + offset = ( *mImpl->mVisualModel->mLines.Begin() ).alignmentOffset; } - void OnTapEvent( const Event& event ) + return offset; +} + +void Controller::SetHorizontalScrollEnabled( bool enable ) +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) { - unsigned int tapCount = event.p1.mUint; + mImpl->mEventData->mDecorator->SetHorizontalScrollEnabled( enable ); + } +} - if( 1u == tapCount ) - { - ChangeState( EDITING ); +bool Controller::IsHorizontalScrollEnabled() const +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) + { + return mImpl->mEventData->mDecorator->IsHorizontalScrollEnabled(); + } - float xPosition = event.p2.mFloat; - float yPosition = event.p3.mFloat; - float height(0.0f); - GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height ); - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); - mUpdateCursorPosition = false; + return false; +} - mDecoratorUpdated = true; - } - else if( mSelectionEnabled && - 2u == tapCount ) +void Controller::SetVerticalScrollEnabled( bool enable ) +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) + { + if( mImpl->mEventData->mDecorator ) { - ChangeState( SELECTING ); + mImpl->mEventData->mDecorator->SetVerticalScrollEnabled( enable ); } } +} - void OnPanEvent( const Event& event, const Vector2& controlSize ) +bool Controller::IsVerticalScrollEnabled() const +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) { - int state = event.p1.mInt; - - if( Gesture::Started == state || - Gesture::Continuing == state ) - { - const Vector2& actualSize = mVisualModel->GetActualSize(); + return mImpl->mEventData->mDecorator->IsVerticalScrollEnabled(); + } - if( mHorizontalScrollingEnabled ) - { - float displacementX = event.p2.mFloat; - mScrollPosition.x += displacementX; + return false; +} - // Clamp between -space & 0 - float contentWidth = actualSize.width; - float space = (contentWidth > controlSize.width) ? contentWidth - controlSize.width : 0.0f; - mScrollPosition.x = ( mScrollPosition.x < -space ) ? -space : mScrollPosition.x; - mScrollPosition.x = ( mScrollPosition.x > 0 ) ? 0 : mScrollPosition.x; +void Controller::SetSmoothHandlePanEnabled( bool enable ) +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) + { + mImpl->mEventData->mDecorator->SetSmoothHandlePanEnabled( enable ); + } +} - mDecoratorUpdated = true; - } - if( mVerticalScrollingEnabled ) - { - float displacementY = event.p3.mFloat; - mScrollPosition.y += displacementY; +bool Controller::IsSmoothHandlePanEnabled() const +{ + if( ( NULL != mImpl->mEventData ) && + mImpl->mEventData->mDecorator ) + { + return mImpl->mEventData->mDecorator->IsSmoothHandlePanEnabled(); + } - // Clamp between -space & 0 - float space = (actualSize.height > controlSize.height) ? actualSize.height - controlSize.height : 0.0f; - mScrollPosition.y = ( mScrollPosition.y < -space ) ? -space : mScrollPosition.y; - mScrollPosition.y = ( mScrollPosition.y > 0 ) ? 0 : mScrollPosition.y; + return false; +} - mDecoratorUpdated = true; - } - } - } +void Controller::SetMaximumNumberOfCharacters( Length maxCharacters ) +{ + mImpl->mMaximumNumberOfCharacters = maxCharacters; +} - void OnGrabHandleEvent( const Event& event ) - { - unsigned int state = event.p1.mUint; +int Controller::GetMaximumNumberOfCharacters() +{ + return mImpl->mMaximumNumberOfCharacters; +} - if( GRAB_HANDLE_PRESSED == state ) - { - float xPosition = event.p2.mFloat; - float yPosition = event.p3.mFloat; - float height(0.0f); +void Controller::SetEnableCursorBlink( bool enable ) +{ + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" ); - GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height ); + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mCursorBlinkEnabled = enable; - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); - mDecorator->HidePopup(); - mDecoratorUpdated = true; - } - else if ( mGrabHandlePopupEnabled && - GRAB_HANDLE_RELEASED == state ) + if( !enable && + mImpl->mEventData->mDecorator ) { - mDecorator->ShowPopup(); + mImpl->mEventData->mDecorator->StopCursorBlink(); } } +} - void ChangeState( State newState ) +bool Controller::GetEnableCursorBlink() const +{ + if( NULL != mImpl->mEventData ) { - if( mState != newState ) - { - mState = newState; - - if( INACTIVE == mState ) - { - mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE ); - mDecorator->StopCursorBlink(); - mDecorator->SetGrabHandleActive( false ); - mDecorator->SetSelectionActive( false ); - mDecorator->HidePopup(); - mDecoratorUpdated = true; - } - else if ( SELECTING == mState ) - { - mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE ); - mDecorator->StopCursorBlink(); - mDecorator->SetGrabHandleActive( false ); - mDecorator->SetSelectionActive( true ); - mDecoratorUpdated = true; - } - else if( EDITING == mState ) - { - mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); - if( mCursorBlinkEnabled ) - { - mDecorator->StartCursorBlink(); - } - if( mGrabHandleEnabled ) - { - mDecorator->SetGrabHandleActive( true ); - } - mDecorator->SetSelectionActive( false ); - mDecoratorUpdated = true; - } - } + return mImpl->mEventData->mCursorBlinkEnabled; } - LineIndex GetClosestLine( float y ) + return false; +} + +void Controller::SetMultiLineEnabled( bool enable ) +{ + const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX; + + if( layout != mImpl->mLayoutEngine.GetLayout() ) { - LineIndex lineIndex( 0u ); + // Set the layout type. + mImpl->mLayoutEngine.SetLayout( layout ); - const Vector& lines = mVisualModel->mLines; - for( float totalHeight = 0; lineIndex < lines.Count(); ++lineIndex ) - { - totalHeight += lines[lineIndex].lineSize.height; - if( y < totalHeight ) - { - break; - } - } + // Set the flags to redo the layout operations + const OperationsMask layoutOperations = static_cast( LAYOUT | + UPDATE_LAYOUT_SIZE | + ALIGN | + REORDER ); + + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | layoutOperations ); - return lineIndex; + mImpl->RequestRelayout(); } +} + +bool Controller::IsMultiLineEnabled() const +{ + return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout(); +} - void GetClosestCursorPosition( CharacterIndex& logical, float& visualX, float& visualY, float& height ) +void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment ) +{ + if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() ) { - Length numberOfGlyphs = mVisualModel->mGlyphs.Count(); - Length numberOfLines = mVisualModel->mLines.Count(); - if( 0 == numberOfGlyphs || - 0 == numberOfLines ) - { - return; - } + // Set the alignment. + mImpl->mLayoutEngine.SetHorizontalAlignment( alignment ); - // Transform to visual model coords - visualX -= mScrollPosition.x; - visualY -= mScrollPosition.y; + // Set the flag to redo the alignment operation. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | ALIGN ); - // Find which line is closest - LineIndex lineIndex( GetClosestLine( visualY ) ); + mImpl->RequestRelayout(); + } +} - const Vector& glyphs = mVisualModel->mGlyphs; - const GlyphInfo* const glyphsBuffer = glyphs.Begin(); +LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const +{ + return mImpl->mLayoutEngine.GetHorizontalAlignment(); +} - const Vector& positions = mVisualModel->mGlyphPositions; - const Vector2* const positionsBuffer = positions.Begin(); +void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment ) +{ + if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() ) + { + // Set the alignment. + mImpl->mLayoutEngine.SetVerticalAlignment( alignment ); - unsigned int closestGlyph = 0; - bool leftOfGlyph( false ); // which side of the glyph? - float closestDistance = MAX_FLOAT; + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | ALIGN ); - const LineRun& line = mVisualModel->mLines[lineIndex]; - GlyphIndex startGlyph = line.glyphIndex; - GlyphIndex endGlyph = line.glyphIndex + line.numberOfGlyphs; - DALI_ASSERT_DEBUG( endGlyph <= glyphs.Count() && "Invalid line info" ); + mImpl->RequestRelayout(); + } +} - for( GlyphIndex i = startGlyph; i < endGlyph; ++i ) - { - const GlyphInfo& glyphInfo = *( glyphsBuffer + i ); - const Vector2& position = *( positionsBuffer + i ); - float glyphX = position.x + glyphInfo.width*0.5f; - float glyphY = position.y + glyphInfo.height*0.5f; +LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const +{ + return mImpl->mLayoutEngine.GetVerticalAlignment(); +} - float distanceToGlyph = fabsf( glyphX - visualX ) + fabsf( glyphY - visualY ); +// public : Update - if( distanceToGlyph < closestDistance ) - { - closestDistance = distanceToGlyph; - closestGlyph = i; - leftOfGlyph = ( visualX < glyphX ); - } - } +void Controller::SetText( const std::string& text ) +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText\n" ); - // Calculate the logical position - logical = mVisualModel->GetCharacterIndex( closestGlyph ); + // Reset keyboard as text changed + mImpl->ResetImfManager(); - // Returns the visual position of the glyph - visualX = positions[closestGlyph].x; - if( !leftOfGlyph ) - { - visualX += glyphs[closestGlyph].width; + // Remove the previously set text and style. + ResetText(); - //if( LTR ) TODO - ++logical; - } - else// if ( RTL ) TODO - { - //++logical; - } - visualY = 0.0f; + // Remove the style. + ClearStyleData(); - height = line.lineSize.height; - } + CharacterIndex lastCursorIndex = 0u; - void UpdateCursorPosition() + if( NULL != mImpl->mEventData ) { - if( 0 == mVisualModel->mGlyphs.Count() ) + // If popup shown then hide it by switching to Editing state + if( ( EventData::SELECTING == mImpl->mEventData->mState ) || + ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) || + ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) || + ( EventData::EDITING_WITH_PASTE_POPUP == mImpl->mEventData->mState ) ) { - return; + mImpl->ChangeState( EventData::EDITING ); } + } - // FIXME GetGlyphIndex() is behaving strangely -#if 0 - GlyphIndex cursorGlyph = mVisualModel->GetGlyphIndex( mPrimaryCursorPosition ); -#else - GlyphIndex cursorGlyph( 0u ); - for( cursorGlyph = 0; cursorGlyph < mVisualModel->mGlyphs.Count(); ++cursorGlyph ) - { - if( mPrimaryCursorPosition == mVisualModel->GetCharacterIndex( cursorGlyph ) ) - { - break; - } - } -#endif + if( !text.empty() ) + { + mImpl->mVisualModel->SetTextColor( mImpl->mTextColor ); - float visualX( 0.0f ); - float visualY( 0.0f ); - LineIndex lineIndex( 0u ); - const Vector& lineRuns = mVisualModel->mLines; + MarkupProcessData markupProcessData( mImpl->mLogicalModel->mColorRuns, + mImpl->mLogicalModel->mFontDescriptionRuns ); - if( cursorGlyph > 0 ) + Length textSize = 0u; + const uint8_t* utf8 = NULL; + if( mImpl->mMarkupProcessorEnabled ) { - --cursorGlyph; + ProcessMarkupString( text, markupProcessData ); + textSize = markupProcessData.markupProcessedText.size(); - visualX = mVisualModel->mGlyphPositions[ cursorGlyph ].x; - //if( LTR ) TODO - visualX += mVisualModel->mGlyphs[ cursorGlyph ].width; - - // Find the line height - for( GlyphIndex lastGlyph = 0; lineIndex < lineRuns.Count(); ++lineIndex ) - { - lastGlyph = (lineRuns[lineIndex].glyphIndex + lineRuns[lineIndex].numberOfGlyphs); - if( cursorGlyph < lastGlyph ) - { - break; - } - } + // This is a bit horrible but std::string returns a (signed) char* + utf8 = reinterpret_cast( markupProcessData.markupProcessedText.c_str() ); } + else + { + textSize = text.size(); - mDecorator->SetPosition( PRIMARY_CURSOR, visualX, visualY, lineRuns[lineIndex].lineSize.height ); - mDecoratorUpdated = true; - } + // This is a bit horrible but std::string returns a (signed) char* + utf8 = reinterpret_cast( text.c_str() ); + } - LogicalModelPtr mLogicalModel; - VisualModelPtr mVisualModel; - DecoratorPtr mDecorator; + // Convert text into UTF-32 + Vector& utf32Characters = mImpl->mLogicalModel->mText; + utf32Characters.Resize( textSize ); - std::string mPlaceholderText; + // Transform a text array encoded in utf8 into an array encoded in utf32. + // It returns the actual number of characters. + Length characterCount = Utf8ToUtf32( utf8, textSize, utf32Characters.Begin() ); + utf32Characters.Resize( characterCount ); - /** - * This is used to delay handling events until after the model has been updated. - * The number of updates to the model is minimized to improve performance. - */ - vector mEventQueue; ///< The queue of touch events etc. + DALI_ASSERT_DEBUG( textSize >= characterCount && "Invalid UTF32 conversion length" ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, textSize, mImpl->mLogicalModel->mText.Count() ); - State mState; ///< Selection mode, edit mode etc. + // The characters to be added. + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = mImpl->mLogicalModel->mText.Count(); - CharacterIndex mPrimaryCursorPosition; ///< Index into logical model for primary cursor - CharacterIndex mSecondaryCursorPosition; ///< Index into logical model for secondary cursor + // To reset the cursor position + lastCursorIndex = characterCount; - /** - * 0,0 means that the top-left corner of the layout matches the top-left corner of the UI control. - * Typically this will have a negative value with scrolling occurs. - */ - Vector2 mScrollPosition; ///< The text is offset by this position when scrolling. + // Update the rest of the model during size negotiation + mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED ); - bool mDecoratorUpdated : 1; ///< True if the decorator was updated during event processing - bool mCursorBlinkEnabled : 1; ///< True if cursor should blink when active - bool mGrabHandleEnabled : 1; ///< True if grab handle is enabled - bool mGrabHandlePopupEnabled : 1; ///< True if the grab handle popu-up should be shown - bool mSelectionEnabled : 1; ///< True if selection handles, highlight etc. are enabled - bool mHorizontalScrollingEnabled : 1; ///< True if horizontal scrolling is enabled - bool mVerticalScrollingEnabled : 1; ///< True if vertical scrolling is enabled - bool mUpdateCursorPosition : 1; ///< True if the visual position of the cursor must be recalculated -}; + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; -struct Controller::FontDefaults -{ - FontDefaults() - : mDefaultPointSize(0.0f), - mFontId(0u) - { + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; } - - FontId GetFontId( TextAbstraction::FontClient& fontClient ) + else { - if( !mFontId ) - { - Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64; - mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize ); - } - - return mFontId; + ShowPlaceholderText(); } - std::string mDefaultFontFamily; - std::string mDefaultFontStyle; - float mDefaultPointSize; - FontId mFontId; -}; - -struct Controller::Impl -{ - Impl( ControlInterface& controlInterface ) - : mControlInterface( controlInterface ), - mLogicalModel(), - mVisualModel(), - mFontDefaults( NULL ), - mTextInput( NULL ), - mFontClient(), - mView(), - mLayoutEngine(), - mModifyEvents(), - mControlSize(), - mOperationsPending( NO_OPERATION ), - mRecalculateNaturalSize( true ) - { - mLogicalModel = LogicalModel::New(); - mVisualModel = VisualModel::New(); + // Resets the cursor position. + ResetCursorPosition( lastCursorIndex ); - mFontClient = TextAbstraction::FontClient::Get(); + // Scrolls the text to make the cursor visible. + ResetScrollPosition(); - mView.SetVisualModel( mVisualModel ); - } + mImpl->RequestRelayout(); - ~Impl() + if( NULL != mImpl->mEventData ) { - delete mTextInput; + // Cancel previously queued events + mImpl->mEventData->mEventQueue.clear(); } - ControlInterface& mControlInterface; ///< Reference to the text controller. - LogicalModelPtr mLogicalModel; ///< Pointer to the logical model. - VisualModelPtr mVisualModel; ///< Pointer to the visual model. - FontDefaults* mFontDefaults; ///< Avoid allocating this when the user does not specify a font. - Controller::TextInput* mTextInput; ///< Avoid allocating everything for text input until EnableTextInput(). - TextAbstraction::FontClient mFontClient; ///< Handle to the font client. - View mView; ///< The view interface to the rendering back-end. - LayoutEngine mLayoutEngine; ///< The layout engine. - std::vector mModifyEvents; ///< Temporary stores the text set until the next relayout. - Size mControlSize; ///< The size of the control. - OperationsMask mOperationsPending; ///< Operations pending to be done to layout the text. - bool mRecalculateNaturalSize:1; ///< Whether the natural size needs to be recalculated. -}; - -ControllerPtr Controller::New( ControlInterface& controlInterface ) -{ - return ControllerPtr( new Controller( controlInterface ) ); -} - -void Controller::SetText( const std::string& text ) -{ - // Cancel previously queued inserts etc. - mImpl->mModifyEvents.clear(); - - // Keep until size negotiation - ModifyEvent event; - event.type = REPLACE_TEXT; - event.text = text; - mImpl->mModifyEvents.push_back( event ); - - if( mImpl->mTextInput ) + // Do this last since it provides callbacks into application code. + if( NULL != mImpl->mEditableControlInterface ) { - // Cancel previously queued events - mImpl->mTextInput->mEventQueue.clear(); - - // TODO - Hide selection decorations + mImpl->mEditableControlInterface->TextChanged(); } } void Controller::GetText( std::string& text ) const { - if( !mImpl->mModifyEvents.empty() && - REPLACE_TEXT == mImpl->mModifyEvents[0].type ) + if( !mImpl->IsShowingPlaceholderText() ) { - text = mImpl->mModifyEvents[0].text; + // Retrieves the text string. + mImpl->GetText( 0u, text ); } else { - // TODO - Convert from UTF-32 + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this ); } } -void Controller::SetPlaceholderText( const std::string& text ) +void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text ) { - if( !mImpl->mTextInput ) + if( NULL != mImpl->mEventData ) { - mImpl->mTextInput->mPlaceholderText = text; + if( PLACEHOLDER_TYPE_INACTIVE == type ) + { + mImpl->mEventData->mPlaceholderTextInactive = text; + } + else + { + mImpl->mEventData->mPlaceholderTextActive = text; + } + + // Update placeholder if there is no text + if( mImpl->IsShowingPlaceholderText() || + ( 0u == mImpl->mLogicalModel->mText.Count() ) ) + { + ShowPlaceholderText(); + } } } -void Controller::GetPlaceholderText( std::string& text ) const +void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const { - if( !mImpl->mTextInput ) + if( NULL != mImpl->mEventData ) { - text = mImpl->mTextInput->mPlaceholderText; + if( PLACEHOLDER_TYPE_INACTIVE == type ) + { + text = mImpl->mEventData->mPlaceholderTextInactive; + } + else + { + text = mImpl->mEventData->mPlaceholderTextActive; + } } } -void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily ) +void Controller::UpdateAfterFontChange( const std::string& newDefaultFont ) { - if( !mImpl->mFontDefaults ) + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::UpdateAfterFontChange\n"); + + if( !mImpl->mFontDefaults->familyDefined ) // If user defined font then should not update when system font changes { - mImpl->mFontDefaults = new Controller::FontDefaults(); - } + DALI_LOG_INFO( gLogFilter, Debug::Concise, "Controller::UpdateAfterFontChange newDefaultFont(%s)\n", newDefaultFont.c_str() ); + mImpl->mFontDefaults->mFontDescription.family = newDefaultFont; - mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID - mImpl->mOperationsPending = ALL_OPERATIONS; - mImpl->mRecalculateNaturalSize = true; + ClearFontData(); + + mImpl->RequestRelayout(); + } } -const std::string& Controller::GetDefaultFontFamily() const +// public : Default style & Input style + +void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily ) { - if( mImpl->mFontDefaults ) + if( NULL == mImpl->mFontDefaults ) { - return mImpl->mFontDefaults->mDefaultFontFamily; + mImpl->mFontDefaults = new FontDefaults(); } - return EMPTY_STRING; -} + mImpl->mFontDefaults->mFontDescription.family = defaultFontFamily; + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetDefaultFontFamily %s\n", defaultFontFamily.c_str()); + mImpl->mFontDefaults->familyDefined = !defaultFontFamily.empty(); -void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle ) + // Clear the font-specific data + ClearFontData(); + + mImpl->RequestRelayout(); +} + +const std::string& Controller::GetDefaultFontFamily() const { - if( !mImpl->mFontDefaults ) + if( NULL != mImpl->mFontDefaults ) { - mImpl->mFontDefaults = new Controller::FontDefaults(); + return mImpl->mFontDefaults->mFontDescription.family; } - mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID - mImpl->mOperationsPending = ALL_OPERATIONS; - mImpl->mRecalculateNaturalSize = true; + return EMPTY_STRING; } -const std::string& Controller::GetDefaultFontStyle() const +void Controller::SetDefaultFontWeight( FontWeight weight ) { - if( mImpl->mFontDefaults ) + if( NULL == mImpl->mFontDefaults ) { - return mImpl->mFontDefaults->mDefaultFontStyle; + mImpl->mFontDefaults = new FontDefaults(); } - return EMPTY_STRING; + mImpl->mFontDefaults->mFontDescription.weight = weight; + mImpl->mFontDefaults->weightDefined = true; + + // Clear the font-specific data + ClearFontData(); + + mImpl->RequestRelayout(); } -void Controller::SetDefaultPointSize( float pointSize ) +bool Controller::IsDefaultFontWeightDefined() const { - if( !mImpl->mFontDefaults ) + return mImpl->mFontDefaults->weightDefined; +} + +FontWeight Controller::GetDefaultFontWeight() const +{ + if( NULL != mImpl->mFontDefaults ) { - mImpl->mFontDefaults = new Controller::FontDefaults(); + return mImpl->mFontDefaults->mFontDescription.weight; } - mImpl->mFontDefaults->mDefaultPointSize = pointSize; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID - mImpl->mOperationsPending = ALL_OPERATIONS; - mImpl->mRecalculateNaturalSize = true; + return TextAbstraction::FontWeight::NORMAL; } -float Controller::GetDefaultPointSize() const +void Controller::SetDefaultFontWidth( FontWidth width ) { - if( mImpl->mFontDefaults ) + if( NULL == mImpl->mFontDefaults ) { - return mImpl->mFontDefaults->mDefaultPointSize; + mImpl->mFontDefaults = new FontDefaults(); } - return 0.0f; + mImpl->mFontDefaults->mFontDescription.width = width; + mImpl->mFontDefaults->widthDefined = true; + + // Clear the font-specific data + ClearFontData(); + + mImpl->RequestRelayout(); } -void Controller::GetDefaultFonts( Vector& fonts, Length numberOfCharacters ) +bool Controller::IsDefaultFontWidthDefined() const { - if( mImpl->mFontDefaults ) - { - FontRun fontRun; - fontRun.characterRun.characterIndex = 0; - fontRun.characterRun.numberOfCharacters = numberOfCharacters; - fontRun.fontId = mImpl->mFontDefaults->GetFontId( mImpl->mFontClient ); - fontRun.isDefault = true; + return mImpl->mFontDefaults->widthDefined; +} - fonts.PushBack( fontRun ); +FontWidth Controller::GetDefaultFontWidth() const +{ + if( NULL != mImpl->mFontDefaults ) + { + return mImpl->mFontDefaults->mFontDescription.width; } + + return TextAbstraction::FontWidth::NORMAL; } -void Controller::EnableTextInput( DecoratorPtr decorator ) +void Controller::SetDefaultFontSlant( FontSlant slant ) { - if( !mImpl->mTextInput ) + if( NULL == mImpl->mFontDefaults ) { - mImpl->mTextInput = new TextInput( mImpl->mLogicalModel, mImpl->mVisualModel, decorator ); + mImpl->mFontDefaults = new FontDefaults(); } + + mImpl->mFontDefaults->mFontDescription.slant = slant; + mImpl->mFontDefaults->slantDefined = true; + + // Clear the font-specific data + ClearFontData(); + + mImpl->RequestRelayout(); } -void Controller::SetEnableCursorBlink( bool enable ) +bool Controller::IsDefaultFontSlantDefined() const { - DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "TextInput disabled" ); + return mImpl->mFontDefaults->slantDefined; +} - if( mImpl->mTextInput ) +FontSlant Controller::GetDefaultFontSlant() const +{ + if( NULL != mImpl->mFontDefaults ) { - mImpl->mTextInput->mCursorBlinkEnabled = enable; + return mImpl->mFontDefaults->mFontDescription.slant; + } - if( !enable && - mImpl->mTextInput->mDecorator ) - { - mImpl->mTextInput->mDecorator->StopCursorBlink(); - } + return TextAbstraction::FontSlant::NORMAL; +} + +void Controller::SetDefaultPointSize( float pointSize ) +{ + if( NULL == mImpl->mFontDefaults ) + { + mImpl->mFontDefaults = new FontDefaults(); } + + mImpl->mFontDefaults->mDefaultPointSize = pointSize; + mImpl->mFontDefaults->sizeDefined = true; + + // Clear the font-specific data + ClearFontData(); + + mImpl->RequestRelayout(); } -bool Controller::GetEnableCursorBlink() const +float Controller::GetDefaultPointSize() const { - if( mImpl->mTextInput ) + if( NULL != mImpl->mFontDefaults ) { - return mImpl->mTextInput->mCursorBlinkEnabled; + return mImpl->mFontDefaults->mDefaultPointSize; } - return false; + return 0.0f; } -const Vector2& Controller::GetScrollPosition() const +void Controller::SetTextColor( const Vector4& textColor ) { - if( mImpl->mTextInput ) + mImpl->mTextColor = textColor; + + if( !mImpl->IsShowingPlaceholderText() ) { - return mImpl->mTextInput->mScrollPosition; + mImpl->mVisualModel->SetTextColor( textColor ); + + mImpl->RequestRelayout(); } +} - return Vector2::ZERO; +const Vector4& Controller::GetTextColor() const +{ + return mImpl->mTextColor; } -Vector3 Controller::GetNaturalSize() +void Controller::SetPlaceholderTextColor( const Vector4& textColor ) { - Vector3 naturalSize; + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mPlaceholderTextColor = textColor; + } - // Make sure the model is up-to-date before layouting - ProcessModifyEvents(); + if( mImpl->IsShowingPlaceholderText() ) + { + mImpl->mVisualModel->SetTextColor( textColor ); + mImpl->RequestRelayout(); + } +} - if( mImpl->mRecalculateNaturalSize ) +const Vector4& Controller::GetPlaceholderTextColor() const +{ + if( NULL != mImpl->mEventData ) { - // Operations that can be done only once until the text changes. - const OperationsMask onlyOnceOperations = static_cast( CONVERT_TO_UTF32 | - GET_SCRIPTS | - VALIDATE_FONTS | - GET_LINE_BREAKS | - GET_WORD_BREAKS | - BIDI_INFO | - SHAPE_TEXT | - GET_GLYPH_METRICS ); - // Make sure the model is up-to-date before layouting - UpdateModel( onlyOnceOperations ); + return mImpl->mEventData->mPlaceholderTextColor; + } - // Operations that need to be done if the size changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - ALIGN | - REORDER ); + return Color::BLACK; +} - DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ), - static_cast( onlyOnceOperations | - sizeOperations ), - naturalSize.GetVectorXY() ); +void Controller::SetShadowOffset( const Vector2& shadowOffset ) +{ + mImpl->mVisualModel->SetShadowOffset( shadowOffset ); - // Do not do again the only once operations. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + mImpl->RequestRelayout(); +} - // Do the size related operations again. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); +const Vector2& Controller::GetShadowOffset() const +{ + return mImpl->mVisualModel->GetShadowOffset(); +} - // Stores the natural size to avoid recalculate it again - // unless the text/style changes. - mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() ); +void Controller::SetShadowColor( const Vector4& shadowColor ) +{ + mImpl->mVisualModel->SetShadowColor( shadowColor ); - mImpl->mRecalculateNaturalSize = false; + mImpl->RequestRelayout(); +} + +const Vector4& Controller::GetShadowColor() const +{ + return mImpl->mVisualModel->GetShadowColor(); +} + +void Controller::SetDefaultShadowProperties( const std::string& shadowProperties ) +{ + if( NULL == mImpl->mShadowDefaults ) + { + mImpl->mShadowDefaults = new ShadowDefaults(); } - else + + mImpl->mShadowDefaults->properties = shadowProperties; +} + +const std::string& Controller::GetDefaultShadowProperties() const +{ + if( NULL != mImpl->mShadowDefaults ) { - naturalSize = mImpl->mVisualModel->GetNaturalSize(); + return mImpl->mShadowDefaults->properties; } - return naturalSize; + return EMPTY_STRING; } -float Controller::GetHeightForWidth( float width ) +void Controller::SetUnderlineColor( const Vector4& color ) { - // Make sure the model is up-to-date before layouting - ProcessModifyEvents(); + mImpl->mVisualModel->SetUnderlineColor( color ); - Size layoutSize; - if( width != mImpl->mControlSize.width ) - { - // Operations that can be done only once until the text changes. - const OperationsMask onlyOnceOperations = static_cast( CONVERT_TO_UTF32 | - GET_SCRIPTS | - VALIDATE_FONTS | - GET_LINE_BREAKS | - GET_WORD_BREAKS | - BIDI_INFO | - SHAPE_TEXT | - GET_GLYPH_METRICS ); - // Make sure the model is up-to-date before layouting - UpdateModel( onlyOnceOperations ); + mImpl->RequestRelayout(); +} - // Operations that need to be done if the size changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - ALIGN | - REORDER ); +const Vector4& Controller::GetUnderlineColor() const +{ + return mImpl->mVisualModel->GetUnderlineColor(); +} - DoRelayout( Size( width, MAX_FLOAT ), - static_cast( onlyOnceOperations | - sizeOperations ), - layoutSize ); +void Controller::SetUnderlineEnabled( bool enabled ) +{ + mImpl->mVisualModel->SetUnderlineEnabled( enabled ); - // Do not do again the only once operations. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + mImpl->RequestRelayout(); +} - // Do the size related operations again. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); - } - else +bool Controller::IsUnderlineEnabled() const +{ + return mImpl->mVisualModel->IsUnderlineEnabled(); +} + +void Controller::SetUnderlineHeight( float height ) +{ + mImpl->mVisualModel->SetUnderlineHeight( height ); + + mImpl->RequestRelayout(); +} + +float Controller::GetUnderlineHeight() const +{ + return mImpl->mVisualModel->GetUnderlineHeight(); +} + +void Controller::SetDefaultUnderlineProperties( const std::string& underlineProperties ) +{ + if( NULL == mImpl->mUnderlineDefaults ) { - layoutSize = mImpl->mVisualModel->GetActualSize(); + mImpl->mUnderlineDefaults = new UnderlineDefaults(); } - return layoutSize.height; + mImpl->mUnderlineDefaults->properties = underlineProperties; } -bool Controller::Relayout( const Vector2& size ) +const std::string& Controller::GetDefaultUnderlineProperties() const { - if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) ) + if( NULL != mImpl->mUnderlineDefaults ) { - bool glyphsRemoved( false ); - if( 0u != mImpl->mVisualModel->GetNumberOfGlyphPositions() ) - { - mImpl->mVisualModel->SetGlyphPositions( NULL, 0u ); - glyphsRemoved = true; - } - - // Not worth to relayout if width or height is equal to zero. - return glyphsRemoved; + return mImpl->mUnderlineDefaults->properties; } - if( size != mImpl->mControlSize ) + return EMPTY_STRING; +} + +void Controller::SetDefaultEmbossProperties( const std::string& embossProperties ) +{ + if( NULL == mImpl->mEmbossDefaults ) { - // Operations that need to be done if the size changes. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | - LAYOUT | - ALIGN | - UPDATE_ACTUAL_SIZE | - REORDER ); + mImpl->mEmbossDefaults = new EmbossDefaults(); + } + + mImpl->mEmbossDefaults->properties = embossProperties; +} - mImpl->mControlSize = size; +const std::string& Controller::GetDefaultEmbossProperties() const +{ + if( NULL != mImpl->mEmbossDefaults ) + { + return mImpl->mEmbossDefaults->properties; } - // Make sure the model is up-to-date before layouting - ProcessModifyEvents(); - UpdateModel( mImpl->mOperationsPending ); + return EMPTY_STRING; +} - Size layoutSize; - bool updated = DoRelayout( mImpl->mControlSize, - mImpl->mOperationsPending, - layoutSize ); +void Controller::SetDefaultOutlineProperties( const std::string& outlineProperties ) +{ + if( NULL == mImpl->mOutlineDefaults ) + { + mImpl->mOutlineDefaults = new OutlineDefaults(); + } - // Do not re-do any operation until something changes. - mImpl->mOperationsPending = NO_OPERATION; + mImpl->mOutlineDefaults->properties = outlineProperties; +} - if( mImpl->mTextInput ) +const std::string& Controller::GetDefaultOutlineProperties() const +{ + if( NULL != mImpl->mOutlineDefaults ) { - // Move the cursor, grab handle etc. - updated = mImpl->mTextInput->ProcessInputEvents( mImpl->mControlSize ) || updated; + return mImpl->mOutlineDefaults->properties; } - return updated; + return EMPTY_STRING; } -void Controller::ProcessModifyEvents() +void Controller::SetDefaultLineSpacing( float lineSpacing ) +{ + //TODO finish implementation + mImpl->mLayoutEngine.SetDefaultLineSpacing( lineSpacing ); +} + +float Controller::GetDefaultLineSpacing() const { - std::vector& events = mImpl->mModifyEvents; + return mImpl->mLayoutEngine.GetDefaultLineSpacing(); +} - for( unsigned int i=0; imEventData ) { - if( REPLACE_TEXT == events[0].type ) - { - // A (single) replace event should come first, otherwise we wasted time processing NOOP events - DALI_ASSERT_DEBUG( 0 == i && "Unexpected REPLACE event" ); + mImpl->mEventData->mInputStyle.textColor = color; + mImpl->mEventData->mInputStyle.isDefaultColor = false; - ReplaceTextEvent( events[0].text ); - } - else if( INSERT_TEXT == events[0].type ) - { - InsertTextEvent( events[0].text ); - } - else if( DELETE_TEXT == events[0].type ) + if( EventData::SELECTING == mImpl->mEventData->mState ) { - DeleteTextEvent(); + const bool handlesCrossed = mImpl->mEventData->mLeftSelectionPosition > mImpl->mEventData->mRightSelectionPosition; + + // Get start and end position of selection + const CharacterIndex startOfSelectedText = handlesCrossed ? mImpl->mEventData->mRightSelectionPosition : mImpl->mEventData->mLeftSelectionPosition; + const Length lengthOfSelectedText = ( handlesCrossed ? mImpl->mEventData->mLeftSelectionPosition : mImpl->mEventData->mRightSelectionPosition ) - startOfSelectedText; + + // Add the color run. + const VectorBase::SizeType numberOfRuns = mImpl->mLogicalModel->mColorRuns.Count(); + mImpl->mLogicalModel->mColorRuns.Resize( numberOfRuns + 1u ); + + ColorRun& colorRun = *( mImpl->mLogicalModel->mColorRuns.Begin() + numberOfRuns ); + colorRun.color = color; + colorRun.characterRun.characterIndex = startOfSelectedText; + colorRun.characterRun.numberOfCharacters = lengthOfSelectedText; + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | COLOR ); + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; } } - - // Discard temporary text - events.clear(); } -void Controller::ReplaceTextEvent( const std::string& text ) +const Vector4& Controller::GetInputColor() const { - // Reset buffers. - mImpl->mLogicalModel->mText.Clear(); - mImpl->mLogicalModel->mScriptRuns.Clear(); - mImpl->mLogicalModel->mFontRuns.Clear(); - mImpl->mLogicalModel->mLineBreakInfo.Clear(); - mImpl->mLogicalModel->mWordBreakInfo.Clear(); - mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear(); - mImpl->mLogicalModel->mCharacterDirections.Clear(); - mImpl->mLogicalModel->mBidirectionalLineInfo.Clear(); - mImpl->mLogicalModel->mLogicalToVisualMap.Clear(); - mImpl->mLogicalModel->mVisualToLogicalMap.Clear(); - mImpl->mVisualModel->mGlyphs.Clear(); - mImpl->mVisualModel->mGlyphsToCharacters.Clear(); - mImpl->mVisualModel->mCharactersToGlyph.Clear(); - mImpl->mVisualModel->mCharactersPerGlyph.Clear(); - mImpl->mVisualModel->mGlyphsPerCharacter.Clear(); - mImpl->mVisualModel->mGlyphPositions.Clear(); - mImpl->mVisualModel->mLines.Clear(); - - // Convert text into UTF-32 - Vector& utf32Characters = mImpl->mLogicalModel->mText; - utf32Characters.Resize( text.size() ); - - // This is a bit horrible but std::string returns a (signed) char* - const uint8_t* utf8 = reinterpret_cast( text.c_str() ); - - // Transform a text array encoded in utf8 into an array encoded in utf32. - // It returns the actual number of characters. - Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() ); - utf32Characters.Resize( characterCount ); - - // Reset the cursor position - if( mImpl->mTextInput ) + if( NULL != mImpl->mEventData ) { - mImpl->mTextInput->mPrimaryCursorPosition = characterCount; - // TODO - handle secondary cursor + return mImpl->mEventData->mInputStyle.textColor; } - // The natural size needs to be re-calculated. - mImpl->mRecalculateNaturalSize = true; - - // Apply modifications to the model - mImpl->mOperationsPending = ALL_OPERATIONS; - UpdateModel( ALL_OPERATIONS ); - mImpl->mOperationsPending = static_cast( LAYOUT | - ALIGN | - UPDATE_ACTUAL_SIZE | - REORDER ); -} - -void Controller::InsertTextEvent( const std::string& text ) -{ - DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "Unexpected InsertTextEvent" ); - - // TODO - Optimize this - mImpl->mLogicalModel->mScriptRuns.Clear(); - mImpl->mLogicalModel->mFontRuns.Clear(); - mImpl->mLogicalModel->mLineBreakInfo.Clear(); - mImpl->mLogicalModel->mWordBreakInfo.Clear(); - mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear(); - mImpl->mLogicalModel->mCharacterDirections.Clear(); - mImpl->mLogicalModel->mBidirectionalLineInfo.Clear(); - mImpl->mLogicalModel->mLogicalToVisualMap.Clear(); - mImpl->mLogicalModel->mVisualToLogicalMap.Clear(); - mImpl->mVisualModel->mGlyphs.Clear(); - mImpl->mVisualModel->mGlyphsToCharacters.Clear(); - mImpl->mVisualModel->mCharactersToGlyph.Clear(); - mImpl->mVisualModel->mCharactersPerGlyph.Clear(); - mImpl->mVisualModel->mGlyphsPerCharacter.Clear(); - mImpl->mVisualModel->mGlyphPositions.Clear(); - mImpl->mVisualModel->mLines.Clear(); - - // Convert text into UTF-32 - Vector utf32Characters; - utf32Characters.Resize( text.size() ); + // Return the default text's color if there is no EventData. + return mImpl->mTextColor; - // This is a bit horrible but std::string returns a (signed) char* - const uint8_t* utf8 = reinterpret_cast( text.c_str() ); +} - // Transform a text array encoded in utf8 into an array encoded in utf32. - // It returns the actual number of characters. - Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() ); - utf32Characters.Resize( characterCount ); +void Controller::SetInputFontFamily( const std::string& fontFamily ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.familyName = fontFamily; + mImpl->mEventData->mInputStyle.isFamilyDefined = true; - // Insert at current cursor position - Vector& modifyText = mImpl->mLogicalModel->mText; - CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition; + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + CharacterIndex startOfSelectedText = 0u; + Length lengthOfSelectedText = 0u; + FontDescriptionRun& fontDescriptionRun = UpdateSelectionFontStyleRun( mImpl->mEventData, + mImpl->mLogicalModel, + startOfSelectedText, + lengthOfSelectedText ); + + fontDescriptionRun.familyLength = fontFamily.size(); + fontDescriptionRun.familyName = new char[fontDescriptionRun.familyLength]; + memcpy( fontDescriptionRun.familyName, fontFamily.c_str(), fontDescriptionRun.familyLength ); + fontDescriptionRun.familyDefined = true; + + // The memory allocated for the font family name is freed when the font description is removed from the logical model. + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); + mImpl->mRecalculateNaturalSize = true; + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; + + // As the font changes, recalculate the handle positions is needed. + mImpl->mEventData->mUpdateLeftSelectionPosition = true; + mImpl->mEventData->mUpdateRightSelectionPosition = true; + mImpl->mEventData->mUpdateHighlightBox = true; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } + } +} - if( cursorIndex < modifyText.Count() ) +const std::string& Controller::GetInputFontFamily() const +{ + if( NULL != mImpl->mEventData ) { - modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.End() ); + return mImpl->mEventData->mInputStyle.familyName; } - else + + // Return the default font's family if there is no EventData. + return GetDefaultFontFamily(); +} + +void Controller::SetInputFontWeight( FontWeight weight ) +{ + if( NULL != mImpl->mEventData ) { - modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.End() ); + mImpl->mEventData->mInputStyle.weight = weight; + mImpl->mEventData->mInputStyle.isWeightDefined = true; + + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + CharacterIndex startOfSelectedText = 0u; + Length lengthOfSelectedText = 0u; + FontDescriptionRun& fontDescriptionRun = UpdateSelectionFontStyleRun( mImpl->mEventData, + mImpl->mLogicalModel, + startOfSelectedText, + lengthOfSelectedText ); + + fontDescriptionRun.weight = weight; + fontDescriptionRun.weightDefined = true; + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); + mImpl->mRecalculateNaturalSize = true; + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; + + // As the font might change, recalculate the handle positions is needed. + mImpl->mEventData->mUpdateLeftSelectionPosition = true; + mImpl->mEventData->mUpdateRightSelectionPosition = true; + mImpl->mEventData->mUpdateHighlightBox = true; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } } +} - // Advance the cursor position - ++cursorIndex; +bool Controller::IsInputFontWeightDefined() const +{ + bool defined = false; - // The natural size needs to be re-calculated. - mImpl->mRecalculateNaturalSize = true; + if( NULL != mImpl->mEventData ) + { + defined = mImpl->mEventData->mInputStyle.isWeightDefined; + } - // Apply modifications to the model; TODO - Optimize this - mImpl->mOperationsPending = ALL_OPERATIONS; - UpdateModel( ALL_OPERATIONS ); - mImpl->mOperationsPending = static_cast( LAYOUT | - ALIGN | - UPDATE_ACTUAL_SIZE | - REORDER ); + return defined; +} + +FontWeight Controller::GetInputFontWeight() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.weight; + } - // Queue a cursor reposition event; this must wait until after DoRelayout() - mImpl->mTextInput->mUpdateCursorPosition = true; + return GetDefaultFontWeight(); } -void Controller::DeleteTextEvent() +void Controller::SetInputFontWidth( FontWidth width ) { - DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "Unexpected InsertTextEvent" ); + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.width = width; + mImpl->mEventData->mInputStyle.isWidthDefined = true; - // TODO - Optimize this - mImpl->mLogicalModel->mScriptRuns.Clear(); - mImpl->mLogicalModel->mFontRuns.Clear(); - mImpl->mLogicalModel->mLineBreakInfo.Clear(); - mImpl->mLogicalModel->mWordBreakInfo.Clear(); - mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear(); - mImpl->mLogicalModel->mCharacterDirections.Clear(); - mImpl->mLogicalModel->mBidirectionalLineInfo.Clear(); - mImpl->mLogicalModel->mLogicalToVisualMap.Clear(); - mImpl->mLogicalModel->mVisualToLogicalMap.Clear(); - mImpl->mVisualModel->mGlyphs.Clear(); - mImpl->mVisualModel->mGlyphsToCharacters.Clear(); - mImpl->mVisualModel->mCharactersToGlyph.Clear(); - mImpl->mVisualModel->mCharactersPerGlyph.Clear(); - mImpl->mVisualModel->mGlyphsPerCharacter.Clear(); - mImpl->mVisualModel->mGlyphPositions.Clear(); - mImpl->mVisualModel->mLines.Clear(); + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + CharacterIndex startOfSelectedText = 0u; + Length lengthOfSelectedText = 0u; + FontDescriptionRun& fontDescriptionRun = UpdateSelectionFontStyleRun( mImpl->mEventData, + mImpl->mLogicalModel, + startOfSelectedText, + lengthOfSelectedText ); + + fontDescriptionRun.width = width; + fontDescriptionRun.widthDefined = true; + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); + mImpl->mRecalculateNaturalSize = true; + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; + + // As the font might change, recalculate the handle positions is needed. + mImpl->mEventData->mUpdateLeftSelectionPosition = true; + mImpl->mEventData->mUpdateRightSelectionPosition = true; + mImpl->mEventData->mUpdateHighlightBox = true; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } + } +} - // Delte at current cursor position - Vector& modifyText = mImpl->mLogicalModel->mText; - CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition; +bool Controller::IsInputFontWidthDefined() const +{ + bool defined = false; - if( cursorIndex > 0 && - cursorIndex-1 < modifyText.Count() ) + if( NULL != mImpl->mEventData ) + { + defined = mImpl->mEventData->mInputStyle.isWidthDefined; + } + + return defined; +} + +FontWidth Controller::GetInputFontWidth() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.width; + } + + return GetDefaultFontWidth(); +} + +void Controller::SetInputFontSlant( FontSlant slant ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.slant = slant; + mImpl->mEventData->mInputStyle.isSlantDefined = true; + + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + CharacterIndex startOfSelectedText = 0u; + Length lengthOfSelectedText = 0u; + FontDescriptionRun& fontDescriptionRun = UpdateSelectionFontStyleRun( mImpl->mEventData, + mImpl->mLogicalModel, + startOfSelectedText, + lengthOfSelectedText ); + + fontDescriptionRun.slant = slant; + fontDescriptionRun.slantDefined = true; + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); + mImpl->mRecalculateNaturalSize = true; + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; + + // As the font might change, recalculate the handle positions is needed. + mImpl->mEventData->mUpdateLeftSelectionPosition = true; + mImpl->mEventData->mUpdateRightSelectionPosition = true; + mImpl->mEventData->mUpdateHighlightBox = true; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } + } +} + +bool Controller::IsInputFontSlantDefined() const +{ + bool defined = false; + + if( NULL != mImpl->mEventData ) + { + defined = mImpl->mEventData->mInputStyle.isSlantDefined; + } + + return defined; +} + +FontSlant Controller::GetInputFontSlant() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.slant; + } + + return GetDefaultFontSlant(); +} + +void Controller::SetInputFontPointSize( float size ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.size = size; + mImpl->mEventData->mInputStyle.isSizeDefined = true; + + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + CharacterIndex startOfSelectedText = 0u; + Length lengthOfSelectedText = 0u; + FontDescriptionRun& fontDescriptionRun = UpdateSelectionFontStyleRun( mImpl->mEventData, + mImpl->mLogicalModel, + startOfSelectedText, + lengthOfSelectedText ); + + fontDescriptionRun.size = static_cast( size * 64.f ); + fontDescriptionRun.sizeDefined = true; + + // Request to relayout. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); + mImpl->mRecalculateNaturalSize = true; + mImpl->RequestRelayout(); + + mImpl->mTextUpdateInfo.mCharacterIndex = startOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = lengthOfSelectedText; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = lengthOfSelectedText; + + // As the font might change, recalculate the handle positions is needed. + mImpl->mEventData->mUpdateLeftSelectionPosition = true; + mImpl->mEventData->mUpdateRightSelectionPosition = true; + mImpl->mEventData->mUpdateHighlightBox = true; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } + } +} + +float Controller::GetInputFontPointSize() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.size; + } + + // Return the default font's point size if there is no EventData. + return GetDefaultPointSize(); +} + +void Controller::SetInputLineSpacing( float lineSpacing ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.lineSpacing = lineSpacing; + mImpl->mEventData->mInputStyle.isLineSpacingDefined = true; + } +} + +float Controller::GetInputLineSpacing() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.lineSpacing; + } + + return 0.f; +} + +void Controller::SetInputShadowProperties( const std::string& shadowProperties ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.shadowProperties = shadowProperties; + } +} + +const std::string& Controller::GetInputShadowProperties() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.shadowProperties; + } + + return GetDefaultShadowProperties(); +} + +void Controller::SetInputUnderlineProperties( const std::string& underlineProperties ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.underlineProperties = underlineProperties; + } +} + +const std::string& Controller::GetInputUnderlineProperties() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.underlineProperties; + } + + return GetDefaultUnderlineProperties(); +} + +void Controller::SetInputEmbossProperties( const std::string& embossProperties ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.embossProperties = embossProperties; + } +} + +const std::string& Controller::GetInputEmbossProperties() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.embossProperties; + } + + return GetDefaultEmbossProperties(); +} + +void Controller::SetInputOutlineProperties( const std::string& outlineProperties ) +{ + if( NULL != mImpl->mEventData ) + { + mImpl->mEventData->mInputStyle.outlineProperties = outlineProperties; + } +} + +const std::string& Controller::GetInputOutlineProperties() const +{ + if( NULL != mImpl->mEventData ) + { + return mImpl->mEventData->mInputStyle.outlineProperties; + } + + return GetDefaultOutlineProperties(); +} + +// public : Queries & retrieves. + +LayoutEngine& Controller::GetLayoutEngine() +{ + return mImpl->mLayoutEngine; +} + +View& Controller::GetView() +{ + return mImpl->mView; +} + +const Vector2& Controller::GetScrollPosition() const +{ + return mImpl->mScrollPosition; +} + +Vector3 Controller::GetNaturalSize() +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" ); + Vector3 naturalSize; + + // Make sure the model is up-to-date before layouting + ProcessModifyEvents(); + + if( mImpl->mRecalculateNaturalSize ) + { + // Operations that can be done only once until the text changes. + const OperationsMask onlyOnceOperations = static_cast( CONVERT_TO_UTF32 | + GET_SCRIPTS | + VALIDATE_FONTS | + GET_LINE_BREAKS | + GET_WORD_BREAKS | + BIDI_INFO | + SHAPE_TEXT | + GET_GLYPH_METRICS ); + // Make sure the model is up-to-date before layouting + mImpl->UpdateModel( onlyOnceOperations ); + + // Layout the text for the new width. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | LAYOUT ); + + // Set the update info to relayout the whole text. + mImpl->mTextUpdateInfo.mParagraphCharacterIndex = 0u; + mImpl->mTextUpdateInfo.mRequestedNumberOfCharacters = mImpl->mLogicalModel->mText.Count(); + + // Store the actual control's size to restore later. + const Size actualControlSize = mImpl->mVisualModel->mControlSize; + + DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ), + static_cast( onlyOnceOperations | + LAYOUT ), + naturalSize.GetVectorXY() ); + + // Do not do again the only once operations. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + + // Do the size related operations again. + const OperationsMask sizeOperations = static_cast( LAYOUT | + ALIGN | + REORDER ); + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); + + // Stores the natural size to avoid recalculate it again + // unless the text/style changes. + mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() ); + + mImpl->mRecalculateNaturalSize = false; + + // Clear the update info. This info will be set the next time the text is updated. + mImpl->mTextUpdateInfo.Clear(); + + // Restore the actual control's size. + mImpl->mVisualModel->mControlSize = actualControlSize; + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z ); + } + else + { + naturalSize = mImpl->mVisualModel->GetNaturalSize(); + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z ); + } + + naturalSize.x = ConvertToEven( naturalSize.x ); + naturalSize.y = ConvertToEven( naturalSize.y ); + + return naturalSize; +} + +float Controller::GetHeightForWidth( float width ) +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width ); + // Make sure the model is up-to-date before layouting + ProcessModifyEvents(); + + Size layoutSize; + if( fabsf( width - mImpl->mVisualModel->mControlSize.width ) > Math::MACHINE_EPSILON_1000 ) + { + // Operations that can be done only once until the text changes. + const OperationsMask onlyOnceOperations = static_cast( CONVERT_TO_UTF32 | + GET_SCRIPTS | + VALIDATE_FONTS | + GET_LINE_BREAKS | + GET_WORD_BREAKS | + BIDI_INFO | + SHAPE_TEXT | + GET_GLYPH_METRICS ); + // Make sure the model is up-to-date before layouting + mImpl->UpdateModel( onlyOnceOperations ); + + + // Layout the text for the new width. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | LAYOUT ); + + // Set the update info to relayout the whole text. + mImpl->mTextUpdateInfo.mParagraphCharacterIndex = 0u; + mImpl->mTextUpdateInfo.mRequestedNumberOfCharacters = mImpl->mLogicalModel->mText.Count(); + + // Store the actual control's width. + const float actualControlWidth = mImpl->mVisualModel->mControlSize.width; + + DoRelayout( Size( width, MAX_FLOAT ), + static_cast( onlyOnceOperations | + LAYOUT ), + layoutSize ); + + // Do not do again the only once operations. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + + // Do the size related operations again. + const OperationsMask sizeOperations = static_cast( LAYOUT | + ALIGN | + REORDER ); + + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); + + // Clear the update info. This info will be set the next time the text is updated. + mImpl->mTextUpdateInfo.Clear(); + + // Restore the actual control's width. + mImpl->mVisualModel->mControlSize.width = actualControlWidth; + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height ); + } + else + { + layoutSize = mImpl->mVisualModel->GetLayoutSize(); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height ); + } + + return layoutSize.height; +} + +// public : Relayout. + +Controller::UpdateTextType Controller::Relayout( const Size& size ) +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f, autoScroll[%s]\n", this, size.width, size.height, (mImpl->mAutoScrollEnabled)?"true":"false" ); + + UpdateTextType updateTextType = NONE_UPDATED; + + if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) ) + { + if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() ) + { + mImpl->mVisualModel->mGlyphPositions.Clear(); + updateTextType = MODEL_UPDATED; + } + + // Clear the update info. This info will be set the next time the text is updated. + mImpl->mTextUpdateInfo.Clear(); + + // Not worth to relayout if width or height is equal to zero. + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" ); + + return updateTextType; + } + + // Whether a new size has been set. + const bool newSize = ( size != mImpl->mVisualModel->mControlSize ); + + if( newSize ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height ); + + // Layout operations that need to be done if the size changes. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + LAYOUT | + ALIGN | + UPDATE_LAYOUT_SIZE | + REORDER ); + // Set the update info to relayout the whole text. + mImpl->mTextUpdateInfo.mFullRelayoutNeeded = true; + mImpl->mTextUpdateInfo.mCharacterIndex = 0u; + } + + // Whether there are modify events. + if( 0u != mImpl->mModifyEvents.Count() ) + { + // Style operations that need to be done if the text is modified. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + COLOR ); + } + + // Make sure the model is up-to-date before layouting. + ProcessModifyEvents(); + bool updated = mImpl->UpdateModel( mImpl->mOperationsPending ); + + // Layout the text. + Size layoutSize; + updated = DoRelayout( size, + mImpl->mOperationsPending, + layoutSize ) || updated; + + if( updated ) + { + updateTextType = MODEL_UPDATED; + } + + // Do not re-do any operation until something changes. + mImpl->mOperationsPending = NO_OPERATION; + + // Whether the text control is editable + const bool isEditable = NULL != mImpl->mEventData; + + // Keep the current offset as it will be used to update the decorator's positions (if the size changes). + Vector2 offset; + if( newSize && isEditable ) + { + offset = mImpl->mScrollPosition; + } + + if( !isEditable || !IsMultiLineEnabled() ) + { + // After doing the text layout, the vertical offset to place the actor in the desired position can be calculated. + CalculateVerticalOffset( size ); + } + + if( isEditable ) + { + if( newSize ) + { + // If there is a new size, the scroll position needs to be clamped. + mImpl->ClampHorizontalScroll( layoutSize ); + + // Update the decorator's positions is needed if there is a new size. + mImpl->mEventData->mDecorator->UpdatePositions( mImpl->mScrollPosition - offset ); + } + + // Move the cursor, grab handle etc. + if( mImpl->ProcessInputEvents() ) + { + updateTextType = static_cast( updateTextType | DECORATOR_UPDATED ); + } + } + + // Clear the update info. This info will be set the next time the text is updated. + mImpl->mTextUpdateInfo.Clear(); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" ); + + return updateTextType; +} + +// public : Input style change signals. + +bool Controller::IsInputStyleChangedSignalsQueueEmpty() +{ + return ( NULL == mImpl->mEventData ) || ( 0u == mImpl->mEventData->mInputStyleChangedQueue.Count() ); +} + +void Controller::ProcessInputStyleChangedSignals() +{ + if( NULL == mImpl->mEventData ) + { + // Nothing to do. + return; + } + + for( Vector::ConstIterator it = mImpl->mEventData->mInputStyleChangedQueue.Begin(), + endIt = mImpl->mEventData->mInputStyleChangedQueue.End(); + it != endIt; + ++it ) + { + const InputStyle::Mask mask = *it; + + if( NULL != mImpl->mEditableControlInterface ) + { + // Emit the input style changed signal. + mImpl->mEditableControlInterface->InputStyleChanged( mask ); + } + } + + mImpl->mEventData->mInputStyleChangedQueue.Clear(); +} + +// public : Text-input Event Queuing. + +void Controller::KeyboardFocusGainEvent() +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" ); + + if( NULL != mImpl->mEventData ) + { + if( ( EventData::INACTIVE == mImpl->mEventData->mState ) || + ( EventData::INTERRUPTED == mImpl->mEventData->mState ) ) + { + mImpl->ChangeState( EventData::EDITING ); + mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered. + } + mImpl->NotifyImfMultiLineStatus(); + if( mImpl->IsShowingPlaceholderText() ) + { + // Show alternative placeholder-text when editing + ShowPlaceholderText(); + } + + mImpl->RequestRelayout(); + } +} + +void Controller::KeyboardFocusLostEvent() +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" ); + + if( NULL != mImpl->mEventData ) + { + if( EventData::INTERRUPTED != mImpl->mEventData->mState ) + { + mImpl->ChangeState( EventData::INACTIVE ); + + if( !mImpl->IsShowingRealText() ) + { + // Revert to regular placeholder-text when not editing + ShowPlaceholderText(); + } + } + } + mImpl->RequestRelayout(); +} + +bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" ); + + bool textChanged( false ); + + if( ( NULL != mImpl->mEventData ) && + ( keyEvent.state == KeyEvent::Down ) ) + { + int keyCode = keyEvent.keyCode; + const std::string& keyString = keyEvent.keyPressed; + + // Pre-process to separate modifying events from non-modifying input events. + if( Dali::DALI_KEY_ESCAPE == keyCode ) + { + // Escape key is a special case which causes focus loss + KeyboardFocusLostEvent(); + } + else if( ( Dali::DALI_KEY_CURSOR_LEFT == keyCode ) || + ( Dali::DALI_KEY_CURSOR_RIGHT == keyCode ) || + ( Dali::DALI_KEY_CURSOR_UP == keyCode ) || + ( Dali::DALI_KEY_CURSOR_DOWN == keyCode ) ) + { + Event event( Event::CURSOR_KEY_EVENT ); + event.p1.mInt = keyCode; + mImpl->mEventData->mEventQueue.push_back( event ); + } + else if( Dali::DALI_KEY_BACKSPACE == keyCode ) + { + textChanged = BackspaceKeyEvent(); + } + else if( IsKey( keyEvent, Dali::DALI_KEY_POWER ) ) + { + mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode. + // Avoids calling the InsertText() method which can delete selected text + } + else if( IsKey( keyEvent, Dali::DALI_KEY_MENU ) || + IsKey( keyEvent, Dali::DALI_KEY_HOME ) ) + { + mImpl->ChangeState( EventData::INACTIVE ); + // Menu/Home key behaviour does not allow edit mode to resume like Power key + // Avoids calling the InsertText() method which can delete selected text + } + else if( Dali::DALI_KEY_SHIFT_LEFT == keyCode ) + { + // DALI_KEY_SHIFT_LEFT is the key code for the Left Shift. It's sent (by the imf?) when the predictive text is enabled + // and a character is typed after the type of a upper case latin character. + + // Do nothing. + } + else + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() ); + + // IMF manager is no longer handling key-events + mImpl->ClearPreEditFlag(); + + InsertText( keyString, COMMIT ); + textChanged = true; + } + + if ( ( mImpl->mEventData->mState != EventData::INTERRUPTED ) && + ( mImpl->mEventData->mState != EventData::INACTIVE ) && + ( Dali::DALI_KEY_SHIFT_LEFT != keyCode ) ) + { + // Should not change the state if the key is the shift send by the imf manager. + // Otherwise, when the state is SELECTING the text controller can't send the right + // surrounding info to the imf. + mImpl->ChangeState( EventData::EDITING ); + } + + mImpl->RequestRelayout(); + } + + if( textChanged && + ( NULL != mImpl->mEditableControlInterface ) ) + { + // Do this last since it provides callbacks into application code + mImpl->mEditableControlInterface->TextChanged(); + } + + return true; +} + +void Controller::TapEvent( unsigned int tapCount, float x, float y ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" ); + + if( NULL != mImpl->mEventData ) + { + DALI_LOG_INFO( gLogFilter, Debug::Concise, "TapEvent state:%d \n", mImpl->mEventData->mState ); + EventData::State state( mImpl->mEventData->mState ); + bool relayoutNeeded( false ); // to avoid unnecessary relayouts when tapping an empty text-field + + if( mImpl->IsClipboardVisible() ) + { + if( EventData::INACTIVE == state || EventData::EDITING == state) + { + mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE ); + } + relayoutNeeded = true; + } + else if( 1u == tapCount ) + { + if( EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state ) + { + mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE ); // If Popup shown hide it here so can be shown again if required. + } + + if( mImpl->IsShowingRealText() && ( EventData::INACTIVE != state ) ) + { + mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE ); + relayoutNeeded = true; + } + else + { + if( mImpl->IsShowingPlaceholderText() && !mImpl->IsFocusedPlaceholderAvailable() ) + { + // Hide placeholder text + ResetText(); + } + + if( EventData::INACTIVE == state ) + { + mImpl->ChangeState( EventData::EDITING ); + } + else if( !mImpl->IsClipboardEmpty() ) + { + mImpl->ChangeState( EventData::EDITING_WITH_POPUP ); + } + relayoutNeeded = true; + } + } + else if( 2u == tapCount ) + { + if( mImpl->mEventData->mSelectionEnabled && + mImpl->IsShowingRealText() ) + { + SelectEvent( x, y, false ); + } + } + // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated + if( relayoutNeeded ) + { + Event event( Event::TAP_EVENT ); + event.p1.mUint = tapCount; + event.p2.mFloat = x; + event.p3.mFloat = y; + mImpl->mEventData->mEventQueue.push_back( event ); + + mImpl->RequestRelayout(); + } + } + + // Reset keyboard as tap event has occurred. + mImpl->ResetImfManager(); +} + +void Controller::PanEvent( Gesture::State state, const Vector2& displacement ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" ); + + if( NULL != mImpl->mEventData ) + { + Event event( Event::PAN_EVENT ); + event.p1.mInt = state; + event.p2.mFloat = displacement.x; + event.p3.mFloat = displacement.y; + mImpl->mEventData->mEventQueue.push_back( event ); + + mImpl->RequestRelayout(); + } +} + +void Controller::LongPressEvent( Gesture::State state, float x, float y ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected LongPressEvent" ); + + if( ( state == Gesture::Started ) && + ( NULL != mImpl->mEventData ) ) + { + if( !mImpl->IsShowingRealText() ) + { + Event event( Event::LONG_PRESS_EVENT ); + event.p1.mInt = state; + mImpl->mEventData->mEventQueue.push_back( event ); + mImpl->RequestRelayout(); + } + else + { + // The 1st long-press on inactive text-field is treated as tap + if( EventData::INACTIVE == mImpl->mEventData->mState ) + { + mImpl->ChangeState( EventData::EDITING ); + + Event event( Event::TAP_EVENT ); + event.p1.mUint = 1; + event.p2.mFloat = x; + event.p3.mFloat = y; + mImpl->mEventData->mEventQueue.push_back( event ); + + mImpl->RequestRelayout(); + } + else if( !mImpl->IsClipboardVisible() ) + { + // Reset the imf manger to commit the pre-edit before selecting the text. + mImpl->ResetImfManager(); + + SelectEvent( x, y, false ); + } + } + } +} + +ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent ) +{ + // Whether the text needs to be relaid-out. + bool requestRelayout = false; + + // Whether to retrieve the text and cursor position to be sent to the IMF manager. + bool retrieveText = false; + bool retrieveCursor = false; + + switch( imfEvent.eventName ) + { + case ImfManager::COMMIT: + { + InsertText( imfEvent.predictiveString, Text::Controller::COMMIT ); + requestRelayout = true; + retrieveCursor = true; + break; + } + case ImfManager::PREEDIT: + { + InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT ); + requestRelayout = true; + retrieveCursor = true; + break; + } + case ImfManager::DELETESURROUNDING: + { + const bool textDeleted = RemoveText( imfEvent.cursorOffset, + imfEvent.numberOfChars, + DONT_UPDATE_INPUT_STYLE ); + + if( textDeleted ) + { + if( ( 0u != mImpl->mLogicalModel->mText.Count() ) || + !mImpl->IsPlaceholderAvailable() ) + { + mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED ); + } + else + { + ShowPlaceholderText(); + } + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->mEventData->mScrollAfterDelete = true; + + requestRelayout = true; + } + break; + } + case ImfManager::GETSURROUNDING: + { + retrieveText = true; + retrieveCursor = true; + break; + } + case ImfManager::VOID: + { + // do nothing + break; + } + } // end switch + + if( requestRelayout ) + { + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->RequestRelayout(); + } + + std::string text; + CharacterIndex cursorPosition = 0u; + Length numberOfWhiteSpaces = 0u; + + if( retrieveCursor ) + { + numberOfWhiteSpaces = mImpl->GetNumberOfWhiteSpaces( 0u ); + + cursorPosition = mImpl->GetLogicalCursorPosition(); + + if( cursorPosition < numberOfWhiteSpaces ) + { + cursorPosition = 0u; + } + else + { + cursorPosition -= numberOfWhiteSpaces; + } + } + + if( retrieveText ) + { + mImpl->GetText( numberOfWhiteSpaces, text ); + } + + ImfManager::ImfCallbackData callbackData( ( retrieveText || retrieveCursor ), cursorPosition, text, false ); + + if( requestRelayout && + ( NULL != mImpl->mEditableControlInterface ) ) + { + // Do this last since it provides callbacks into application code + mImpl->mEditableControlInterface->TextChanged(); + } + + return callbackData; +} + +void Controller::PasteClipboardItemEvent() +{ + // Retrieve the clipboard contents first + ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() ); + std::string stringToPaste( notifier.GetContent() ); + + // Commit the current pre-edit text; the contents of the clipboard should be appended + mImpl->ResetImfManager(); + + // Temporary disable hiding clipboard + mImpl->SetClipboardHideEnable( false ); + + // Paste + PasteText( stringToPaste ); + + mImpl->SetClipboardHideEnable( true ); +} + +// protected : Inherit from Text::Decorator::ControllerInterface. + +void Controller::GetTargetSize( Vector2& targetSize ) +{ + targetSize = mImpl->mVisualModel->mControlSize; +} + +void Controller::AddDecoration( Actor& actor, bool needsClipping ) +{ + if( NULL != mImpl->mEditableControlInterface ) + { + mImpl->mEditableControlInterface->AddDecoration( actor, needsClipping ); + } +} + +void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" ); + + if( NULL != mImpl->mEventData ) + { + switch( handleType ) + { + case GRAB_HANDLE: + { + Event event( Event::GRAB_HANDLE_EVENT ); + event.p1.mUint = state; + event.p2.mFloat = x; + event.p3.mFloat = y; + + mImpl->mEventData->mEventQueue.push_back( event ); + break; + } + case LEFT_SELECTION_HANDLE: + { + Event event( Event::LEFT_SELECTION_HANDLE_EVENT ); + event.p1.mUint = state; + event.p2.mFloat = x; + event.p3.mFloat = y; + + mImpl->mEventData->mEventQueue.push_back( event ); + break; + } + case RIGHT_SELECTION_HANDLE: + { + Event event( Event::RIGHT_SELECTION_HANDLE_EVENT ); + event.p1.mUint = state; + event.p2.mFloat = x; + event.p3.mFloat = y; + + mImpl->mEventData->mEventQueue.push_back( event ); + break; + } + case LEFT_SELECTION_HANDLE_MARKER: + case RIGHT_SELECTION_HANDLE_MARKER: + { + // Markers do not move the handles. + break; + } + case HANDLE_TYPE_COUNT: + { + DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" ); + } + } + + mImpl->RequestRelayout(); + } +} + +// protected : Inherit from TextSelectionPopup::TextPopupButtonCallbackInterface. + +void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button ) +{ + if( NULL == mImpl->mEventData ) + { + return; + } + + switch( button ) + { + case Toolkit::TextSelectionPopup::CUT: + { + mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text + mImpl->mOperationsPending = ALL_OPERATIONS; + + if( ( 0u != mImpl->mLogicalModel->mText.Count() ) || + !mImpl->IsPlaceholderAvailable() ) + { + mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED ); + } + else + { + ShowPlaceholderText(); + } + + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->mEventData->mScrollAfterDelete = true; + + mImpl->RequestRelayout(); + + if( NULL != mImpl->mEditableControlInterface ) + { + mImpl->mEditableControlInterface->TextChanged(); + } + break; + } + case Toolkit::TextSelectionPopup::COPY: + { + mImpl->SendSelectionToClipboard( false ); // Text not modified + + mImpl->mEventData->mUpdateCursorPosition = true; + + mImpl->RequestRelayout(); // Cursor, Handles, Selection Highlight, Popup + break; + } + case Toolkit::TextSelectionPopup::PASTE: + { + mImpl->RequestGetTextFromClipboard(); // Request clipboard service to retrieve an item + break; + } + case Toolkit::TextSelectionPopup::SELECT: + { + const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR ); + + if( mImpl->mEventData->mSelectionEnabled ) + { + // Creates a SELECT event. + SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false ); + } + break; + } + case Toolkit::TextSelectionPopup::SELECT_ALL: + { + // Creates a SELECT_ALL event + SelectEvent( 0.f, 0.f, true ); + break; + } + case Toolkit::TextSelectionPopup::CLIPBOARD: + { + mImpl->ShowClipboard(); + break; + } + case Toolkit::TextSelectionPopup::NONE: + { + // Nothing to do. + break; + } + } +} + +// private : Update. + +void Controller::InsertText( const std::string& text, Controller::InsertType type ) +{ + bool removedPrevious( false ); + bool maxLengthReached( false ); + + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" ) + + if( NULL == mImpl->mEventData ) + { + return; + } + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n", + this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"), + mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength ); + + // TODO: At the moment the underline runs are only for pre-edit. + mImpl->mVisualModel->mUnderlineRuns.Clear(); + + // Keep the current number of characters. + const Length currentNumberOfCharacters = mImpl->IsShowingRealText() ? mImpl->mLogicalModel->mText.Count() : 0u; + + // Remove the previous IMF pre-edit. + if( mImpl->mEventData->mPreEditFlag && ( 0u != mImpl->mEventData->mPreEditLength ) ) + { + removedPrevious = RemoveText( -static_cast( mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition ), + mImpl->mEventData->mPreEditLength, + DONT_UPDATE_INPUT_STYLE ); + + mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition; + mImpl->mEventData->mPreEditLength = 0u; + } + else + { + // Remove the previous Selection. + removedPrevious = RemoveSelectedText(); + } + + Vector utf32Characters; + Length characterCount = 0u; + + if( !text.empty() ) + { + // Convert text into UTF-32 + utf32Characters.Resize( text.size() ); + + // This is a bit horrible but std::string returns a (signed) char* + const uint8_t* utf8 = reinterpret_cast( text.c_str() ); + + // Transform a text array encoded in utf8 into an array encoded in utf32. + // It returns the actual number of characters. + characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() ); + utf32Characters.Resize( characterCount ); + + DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() ); + } + + if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded + { + // The placeholder text is no longer needed + if( mImpl->IsShowingPlaceholderText() ) + { + ResetText(); + } + + mImpl->ChangeState( EventData::EDITING ); + + // Handle the IMF (predicitive text) state changes + if( COMMIT == type ) + { + // IMF manager is no longer handling key-events + mImpl->ClearPreEditFlag(); + } + else // PRE_EDIT + { + if( !mImpl->mEventData->mPreEditFlag ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state\n" ); + + // Record the start of the pre-edit text + mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition; + } + + mImpl->mEventData->mPreEditLength = utf32Characters.Count(); + mImpl->mEventData->mPreEditFlag = true; + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength ); + } + + const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count(); + + // Restrict new text to fit within Maximum characters setting. + Length maxSizeOfNewText = std::min( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount ); + maxLengthReached = ( characterCount > maxSizeOfNewText ); + + // The cursor position. + CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition; + + // Update the text's style. + + // Updates the text style runs by adding characters. + mImpl->mLogicalModel->UpdateTextStyleRuns( cursorIndex, maxSizeOfNewText ); + + // Get the character index from the cursor index. + const CharacterIndex styleIndex = ( cursorIndex > 0u ) ? cursorIndex - 1u : 0u; + + // Retrieve the text's style for the given index. + InputStyle style; + mImpl->RetrieveDefaultInputStyle( style ); + mImpl->mLogicalModel->RetrieveStyle( styleIndex, style ); + + // Whether to add a new text color run. + const bool addColorRun = ( style.textColor != mImpl->mEventData->mInputStyle.textColor ); + + // Whether to add a new font run. + const bool addFontNameRun = style.familyName != mImpl->mEventData->mInputStyle.familyName; + const bool addFontWeightRun = style.weight != mImpl->mEventData->mInputStyle.weight; + const bool addFontWidthRun = style.width != mImpl->mEventData->mInputStyle.width; + const bool addFontSlantRun = style.slant != mImpl->mEventData->mInputStyle.slant; + const bool addFontSizeRun = style.size != mImpl->mEventData->mInputStyle.size; + + // Add style runs. + if( addColorRun ) + { + const VectorBase::SizeType numberOfRuns = mImpl->mLogicalModel->mColorRuns.Count(); + mImpl->mLogicalModel->mColorRuns.Resize( numberOfRuns + 1u ); + + ColorRun& colorRun = *( mImpl->mLogicalModel->mColorRuns.Begin() + numberOfRuns ); + colorRun.color = mImpl->mEventData->mInputStyle.textColor; + colorRun.characterRun.characterIndex = cursorIndex; + colorRun.characterRun.numberOfCharacters = maxSizeOfNewText; + } + + if( addFontNameRun || + addFontWeightRun || + addFontWidthRun || + addFontSlantRun || + addFontSizeRun ) + { + const VectorBase::SizeType numberOfRuns = mImpl->mLogicalModel->mFontDescriptionRuns.Count(); + mImpl->mLogicalModel->mFontDescriptionRuns.Resize( numberOfRuns + 1u ); + + FontDescriptionRun& fontDescriptionRun = *( mImpl->mLogicalModel->mFontDescriptionRuns.Begin() + numberOfRuns ); + + if( addFontNameRun ) + { + fontDescriptionRun.familyLength = mImpl->mEventData->mInputStyle.familyName.size(); + fontDescriptionRun.familyName = new char[fontDescriptionRun.familyLength]; + memcpy( fontDescriptionRun.familyName, mImpl->mEventData->mInputStyle.familyName.c_str(), fontDescriptionRun.familyLength ); + fontDescriptionRun.familyDefined = true; + + // The memory allocated for the font family name is freed when the font description is removed from the logical model. + } + + if( addFontWeightRun ) + { + fontDescriptionRun.weight = mImpl->mEventData->mInputStyle.weight; + fontDescriptionRun.weightDefined = true; + } + + if( addFontWidthRun ) + { + fontDescriptionRun.width = mImpl->mEventData->mInputStyle.width; + fontDescriptionRun.widthDefined = true; + } + + if( addFontSlantRun ) + { + fontDescriptionRun.slant = mImpl->mEventData->mInputStyle.slant; + fontDescriptionRun.slantDefined = true; + } + + if( addFontSizeRun ) + { + fontDescriptionRun.size = static_cast( mImpl->mEventData->mInputStyle.size * 64.f ); + fontDescriptionRun.sizeDefined = true; + } + + fontDescriptionRun.characterRun.characterIndex = cursorIndex; + fontDescriptionRun.characterRun.numberOfCharacters = maxSizeOfNewText; + } + + // Insert at current cursor position. + Vector& modifyText = mImpl->mLogicalModel->mText; + + if( cursorIndex < numberOfCharactersInModel ) + { + modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText ); + } + else + { + modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText ); + } + + // Mark the first paragraph to be updated. + mImpl->mTextUpdateInfo.mCharacterIndex = std::min( cursorIndex, mImpl->mTextUpdateInfo.mCharacterIndex ); + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd += maxSizeOfNewText; + + // Update the cursor index. + cursorIndex += maxSizeOfNewText; + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition ); + } + + const Length numberOfCharacters = mImpl->IsShowingRealText() ? mImpl->mLogicalModel->mText.Count() : 0u; + + if( ( 0u == mImpl->mLogicalModel->mText.Count() ) && + mImpl->IsPlaceholderAvailable() ) + { + // Show place-holder if empty after removing the pre-edit text + ShowPlaceholderText(); + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->ClearPreEditFlag(); + } + else if( removedPrevious || + ( 0 != utf32Characters.Count() ) ) { - modifyText.Remove( modifyText.Begin() + cursorIndex - 1 ); + // Queue an inserted event + mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED ); - // Cursor position retreat - --cursorIndex; + mImpl->mEventData->mUpdateCursorPosition = true; + if( numberOfCharacters < currentNumberOfCharacters ) + { + mImpl->mEventData->mScrollAfterDelete = true; + } + else + { + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } } - // The natural size needs to be re-calculated. - mImpl->mRecalculateNaturalSize = true; + if( maxLengthReached ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() ); - // Apply modifications to the model; TODO - Optimize this - mImpl->mOperationsPending = ALL_OPERATIONS; - UpdateModel( ALL_OPERATIONS ); - mImpl->mOperationsPending = static_cast( LAYOUT | - ALIGN | - UPDATE_ACTUAL_SIZE | - REORDER ); + mImpl->ResetImfManager(); - // Queue a cursor reposition event; this must wait until after DoRelayout() - mImpl->mTextInput->mUpdateCursorPosition = true; + if( NULL != mImpl->mEditableControlInterface ) + { + // Do this last since it provides callbacks into application code + mImpl->mEditableControlInterface->MaxLengthReached(); + } + } } -void Controller::UpdateModel( OperationsMask operationsRequired ) +void Controller::PasteText( const std::string& stringToPaste ) { - // Calculate the operations to be done. - const OperationsMask operations = static_cast( mImpl->mOperationsPending & operationsRequired ); + InsertText( stringToPaste, Text::Controller::COMMIT ); + mImpl->ChangeState( EventData::EDITING ); + mImpl->RequestRelayout(); - Vector& utf32Characters = mImpl->mLogicalModel->mText; - - const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters(); - - Vector& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo; - if( GET_LINE_BREAKS & operations ) + if( NULL != mImpl->mEditableControlInterface ) { - // 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, - lineBreakInfo ); + // Do this last since it provides callbacks into application code + mImpl->mEditableControlInterface->TextChanged(); } +} - Vector& wordBreakInfo = mImpl->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 ); +bool Controller::RemoveText( int cursorOffset, + int numberOfCharacters, + UpdateInputStyleType type ) +{ + bool removed = false; - SetWordBreakInfo( utf32Characters, - wordBreakInfo ); + if( NULL == mImpl->mEventData ) + { + return removed; } - const bool getScripts = GET_SCRIPTS & operations; - const bool validateFonts = VALIDATE_FONTS & operations; - - Vector& scripts = mImpl->mLogicalModel->mScriptRuns; - Vector& validFonts = mImpl->mLogicalModel->mFontRuns; + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfCharacters %d\n", + this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfCharacters ); - if( getScripts || validateFonts ) + if( !mImpl->IsShowingPlaceholderText() ) { - // 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(); + // Delete at current cursor position + Vector& currentText = mImpl->mLogicalModel->mText; + CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition; - if( getScripts ) + CharacterIndex cursorIndex = oldCursorIndex; + + // Validate the cursor position & number of characters + if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex ) { - // Retrieves the scripts used in the text. - multilanguageSupport.SetScripts( utf32Characters, - lineBreakInfo, - scripts ); + cursorIndex = oldCursorIndex + cursorOffset; } - if( validateFonts ) + if( ( cursorIndex + numberOfCharacters ) > currentText.Count() ) { - 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 ); - } - - // 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 ); + numberOfCharacters = currentText.Count() - cursorIndex; } - } - Vector mirroredUtf32Characters; - bool textMirrored = false; - if( BIDI_INFO & operations ) - { - // Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's - // bidirectional info. + if( ( cursorIndex + numberOfCharacters ) <= mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters ) + { + // Mark the paragraphs to be updated. + mImpl->mTextUpdateInfo.mCharacterIndex = std::min( cursorIndex, mImpl->mTextUpdateInfo.mCharacterIndex ); + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove += numberOfCharacters; - Length numberOfParagraphs = 0u; + // Update the input style and remove the text's style before removing the text. - const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin(); - for( Length index = 0u; index < numberOfCharacters; ++index ) - { - if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) ) + if( UPDATE_INPUT_STYLE == type ) { - ++numberOfParagraphs; - } - } + // Keep a copy of the current input style. + InputStyle currentInputStyle; + currentInputStyle.Copy( mImpl->mEventData->mInputStyle ); - Vector& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo; - bidirectionalInfo.Reserve( numberOfParagraphs ); + // Set first the default input style. + mImpl->RetrieveDefaultInputStyle( mImpl->mEventData->mInputStyle ); - // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts. - SetBidirectionalInfo( utf32Characters, - scripts, - lineBreakInfo, - bidirectionalInfo ); + // Update the input style. + mImpl->mLogicalModel->RetrieveStyle( cursorIndex, mImpl->mEventData->mInputStyle ); - 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. + // Compare if the input style has changed. + const bool hasInputStyleChanged = !currentInputStyle.Equal( mImpl->mEventData->mInputStyle ); - textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters ); + if( hasInputStyleChanged ) + { + const InputStyle::Mask styleChangedMask = currentInputStyle.GetInputStyleChangeMask( mImpl->mEventData->mInputStyle ); + // Queue the input style changed signal. + mImpl->mEventData->mInputStyleChangedQueue.PushBack( styleChangedMask ); + } + } - // Only set the character directions if there is right to left characters. - Vector& directions = mImpl->mLogicalModel->mCharacterDirections; - directions.Resize( numberOfCharacters ); + // Updates the text style runs by removing characters. Runs with no characters are removed. + mImpl->mLogicalModel->UpdateTextStyleRuns( cursorIndex, -numberOfCharacters ); - GetCharactersDirection( bidirectionalInfo, - directions ); - } - else - { - // There is no right to left characters. Clear the directions vector. - mImpl->mLogicalModel->mCharacterDirections.Clear(); - } + // Remove the characters. + Vector::Iterator first = currentText.Begin() + cursorIndex; + Vector::Iterator last = first + numberOfCharacters; - } + currentText.Erase( first, last ); - Vector& glyphs = mImpl->mVisualModel->mGlyphs; - Vector& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters; - Vector& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph; - if( SHAPE_TEXT & operations ) - { - const Vector& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters; - // Shapes the text. - ShapeText( textToShape, - lineBreakInfo, - scripts, - validFonts, - glyphs, - glyphsToCharactersMap, - charactersPerGlyph ); - } + // Cursor position retreat + oldCursorIndex = cursorIndex; - const Length numberOfGlyphs = glyphs.Count(); + mImpl->mEventData->mScrollAfterDelete = true; - if( GET_GLYPH_METRICS & operations ) - { - mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs ); + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfCharacters ); + removed = true; + } } - if( 0u != numberOfGlyphs ) + return removed; +} + +bool Controller::RemoveSelectedText() +{ + bool textRemoved( false ); + + if( EventData::SELECTING == mImpl->mEventData->mState ) { - // Create the glyph to character conversion table and the 'number of glyphs' per character. - mImpl->mVisualModel->CreateCharacterToGlyphTable(numberOfCharacters ); - mImpl->mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters ); + std::string removedString; + mImpl->RetrieveSelection( removedString, true ); + + if( !removedString.empty() ) + { + textRemoved = true; + mImpl->ChangeState( EventData::EDITING ); + } } + + return textRemoved; } -bool Controller::DoRelayout( const Vector2& size, +// private : Relayout. + +bool Controller::DoRelayout( const Size& size, OperationsMask operationsRequired, Size& layoutSize ) { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height ); bool viewUpdated( false ); // Calculate the operations to be done. const OperationsMask operations = static_cast( mImpl->mOperationsPending & operationsRequired ); - if( LAYOUT & operations ) + const CharacterIndex startIndex = mImpl->mTextUpdateInfo.mParagraphCharacterIndex; + const Length requestedNumberOfCharacters = mImpl->mTextUpdateInfo.mRequestedNumberOfCharacters; + + // Get the current layout size. + layoutSize = mImpl->mVisualModel->GetLayoutSize(); + + if( NO_OPERATION != ( LAYOUT & operations ) ) { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout LAYOUT & operations\n"); + // Some vectors with data needed to layout and reorder may be void // after the first time the text has been laid out. // Fill the vectors again. - Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs(); + // Calculate the number of glyphs to layout. + const Vector& charactersToGlyph = mImpl->mVisualModel->mCharactersToGlyph; + const Vector& glyphsPerCharacter = mImpl->mVisualModel->mGlyphsPerCharacter; + const GlyphIndex* const charactersToGlyphBuffer = charactersToGlyph.Begin(); + const Length* const glyphsPerCharacterBuffer = glyphsPerCharacter.Begin(); + + const CharacterIndex lastIndex = startIndex + ( ( requestedNumberOfCharacters > 0u ) ? requestedNumberOfCharacters - 1u : 0u ); + const GlyphIndex startGlyphIndex = mImpl->mTextUpdateInfo.mStartGlyphIndex; + const Length numberOfGlyphs = ( requestedNumberOfCharacters > 0u ) ? *( charactersToGlyphBuffer + lastIndex ) + *( glyphsPerCharacterBuffer + lastIndex ) - startGlyphIndex : 0u; + const Length totalNumberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count(); + + if( 0u == totalNumberOfGlyphs ) + { + if( NO_OPERATION != ( UPDATE_LAYOUT_SIZE & operations ) ) + { + mImpl->mVisualModel->SetLayoutSize( Size::ZERO ); + } + + // Nothing else to do if there is no glyphs. + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" ); + return true; + } - Vector& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo; - Vector& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo; - Vector& glyphs = mImpl->mVisualModel->mGlyphs; - Vector& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters; - Vector& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph; + const Vector& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo; + const Vector& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo; + const Vector& characterDirection = mImpl->mLogicalModel->mCharacterDirections; + const Vector& glyphs = mImpl->mVisualModel->mGlyphs; + const Vector& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters; + const Vector& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph; + const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin(); // Set the layout parameters. LayoutParameters layoutParameters( size, - mImpl->mLogicalModel->mText.Begin(), + textBuffer, lineBreakInfo.Begin(), wordBreakInfo.Begin(), - numberOfGlyphs, + ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL, glyphs.Begin(), glyphsToCharactersMap.Begin(), - charactersPerGlyph.Begin() ); - - // The laid-out lines. - // It's not possible to know in how many lines the text is going to be laid-out, - // but it can be resized at least with the number of 'paragraphs' to avoid - // some re-allocations. - Vector& lines = mImpl->mVisualModel->mLines; - - // Delete any previous laid out lines before setting the new ones. - lines.Clear(); - - // The capacity of the bidirectional paragraph info is the number of paragraphs. - lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() ); + charactersPerGlyph.Begin(), + charactersToGlyphBuffer, + glyphsPerCharacterBuffer, + totalNumberOfGlyphs ); // Resize the vector of positions to have the same size than the vector of glyphs. Vector& glyphPositions = mImpl->mVisualModel->mGlyphPositions; - glyphPositions.Resize( numberOfGlyphs ); + glyphPositions.Resize( totalNumberOfGlyphs ); + + // Whether the last character is a new paragraph character. + mImpl->mTextUpdateInfo.mIsLastCharacterNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) ); + layoutParameters.isLastNewParagraph = mImpl->mTextUpdateInfo.mIsLastCharacterNewParagraph; + + // The initial glyph and the number of glyphs to layout. + layoutParameters.startGlyphIndex = startGlyphIndex; + layoutParameters.numberOfGlyphs = numberOfGlyphs; + layoutParameters.startLineIndex = mImpl->mTextUpdateInfo.mStartLineIndex; + layoutParameters.estimatedNumberOfLines = mImpl->mTextUpdateInfo.mEstimatedNumberOfLines; // Update the visual model. + Size newLayoutSize; viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters, glyphPositions, - lines, - layoutSize ); + mImpl->mVisualModel->mLines, + newLayoutSize ); + + viewUpdated = viewUpdated || ( newLayoutSize != layoutSize ); if( viewUpdated ) { + layoutSize = newLayoutSize; + + if ( NO_OPERATION != ( UPDATE_DIRECTION & operations ) ) + { + mImpl->mAutoScrollDirectionRTL = false; + } + // Reorder the lines - if( REORDER & operations ) + if( NO_OPERATION != ( REORDER & operations ) ) { Vector& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo; + Vector& bidirectionalLineInfo = mImpl->mLogicalModel->mBidirectionalLineInfo; // Check first if there are paragraphs with bidirectional info. if( 0u != bidirectionalInfo.Count() ) { // Get the lines - const Length numberOfLines = mImpl->mVisualModel->GetNumberOfLines(); + const Length numberOfLines = mImpl->mVisualModel->mLines.Count(); // Reorder the lines. - Vector lineBidirectionalInfoRuns; - lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters. + bidirectionalLineInfo.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters. ReorderLines( bidirectionalInfo, - lines, - lineBidirectionalInfoRuns ); - - // Set the bidirectional info into the model. - const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count(); - mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(), - numberOfBidirectionalInfoRuns ); + startIndex, + requestedNumberOfCharacters, + mImpl->mVisualModel->mLines, + bidirectionalLineInfo ); // Set the bidirectional info per line into the layout parameters. - layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin(); - layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns; - - // Get the character to glyph conversion table and set into the layout. - layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin(); - - // Get the glyphs per character table and set into the layout. - layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin(); + layoutParameters.lineBidirectionalInfoRunsBuffer = bidirectionalLineInfo.Begin(); + layoutParameters.numberOfBidirectionalInfoRuns = bidirectionalLineInfo.Count(); // Re-layout the text. Reorder those lines with right to left characters. mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters, + startIndex, + requestedNumberOfCharacters, glyphPositions ); - // Free the allocated memory used to store the conversion table in the bidirectional line info run. - for( Vector::Iterator it = lineBidirectionalInfoRuns.Begin(), - endIt = lineBidirectionalInfoRuns.End(); - it != endIt; - ++it ) + if ( ( NO_OPERATION != ( UPDATE_DIRECTION & operations ) ) && ( numberOfLines > 0 ) ) { - BidirectionalLineInfoRun& bidiLineInfo = *it; - - free( bidiLineInfo.visualToLogicalMap ); + const LineRun* const firstline = mImpl->mVisualModel->mLines.Begin(); + if ( firstline ) + { + mImpl->mAutoScrollDirectionRTL = firstline->direction; + } } } } // REORDER - if( ALIGN & operations ) - { - mImpl->mLayoutEngine.Align( layoutParameters, - lines, - glyphPositions ); - } - - // Sets the actual size. - if( UPDATE_ACTUAL_SIZE & operations ) + // Sets the layout size. + if( NO_OPERATION != ( UPDATE_LAYOUT_SIZE & operations ) ) { - mImpl->mVisualModel->SetActualSize( layoutSize ); + mImpl->mVisualModel->SetLayoutSize( layoutSize ); } } // view updated + + // Store the size used to layout the text. + mImpl->mVisualModel->mControlSize = size; } - else + + if( NO_OPERATION != ( ALIGN & operations ) ) { - layoutSize = mImpl->mVisualModel->GetActualSize(); - } + // The laid-out lines. + Vector& lines = mImpl->mVisualModel->mLines; + mImpl->mLayoutEngine.Align( size, + startIndex, + requestedNumberOfCharacters, + lines ); + + viewUpdated = true; + } +#if defined(DEBUG_ENABLED) + std::string currentText; + GetText( currentText ); + DALI_LOG_INFO( gLogFilter, Debug::Concise, "Controller::DoRelayout [%p] mImpl->mAutoScrollDirectionRTL[%s] [%s]\n", this, (mImpl->mAutoScrollDirectionRTL)?"true":"false", currentText.c_str() ); +#endif + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) ); return viewUpdated; } -View& Controller::GetView() +void Controller::CalculateVerticalOffset( const Size& controlSize ) { - return mImpl->mView; + Size layoutSize = mImpl->mVisualModel->GetLayoutSize(); + + if( fabsf( layoutSize.height ) < Math::MACHINE_EPSILON_1000 ) + { + // Get the line height of the default font. + layoutSize.height = mImpl->GetDefaultFontLineHeight(); + } + + switch( mImpl->mLayoutEngine.GetVerticalAlignment() ) + { + case LayoutEngine::VERTICAL_ALIGN_TOP: + { + mImpl->mScrollPosition.y = 0.f; + break; + } + case LayoutEngine::VERTICAL_ALIGN_CENTER: + { + mImpl->mScrollPosition.y = floorf( 0.5f * ( controlSize.height - layoutSize.height ) ); // try to avoid pixel alignment. + break; + } + case LayoutEngine::VERTICAL_ALIGN_BOTTOM: + { + mImpl->mScrollPosition.y = controlSize.height - layoutSize.height; + break; + } + } } -LayoutEngine& Controller::GetLayoutEngine() +// private : Events. + +void Controller::ProcessModifyEvents() { - return mImpl->mLayoutEngine; + Vector& events = mImpl->mModifyEvents; + + if( 0u == events.Count() ) + { + // Nothing to do. + return; + } + + for( Vector::ConstIterator it = events.Begin(), + endIt = events.End(); + it != endIt; + ++it ) + { + const ModifyEvent& event = *it; + + if( ModifyEvent::TEXT_REPLACED == event.type ) + { + // A (single) replace event should come first, otherwise we wasted time processing NOOP events + DALI_ASSERT_DEBUG( it == events.Begin() && "Unexpected TEXT_REPLACED event" ); + + TextReplacedEvent(); + } + else if( ModifyEvent::TEXT_INSERTED == event.type ) + { + TextInsertedEvent(); + } + else if( ModifyEvent::TEXT_DELETED == event.type ) + { + // Placeholder-text cannot be deleted + if( !mImpl->IsShowingPlaceholderText() ) + { + TextDeletedEvent(); + } + } + } + + if( NULL != mImpl->mEventData ) + { + // When the text is being modified, delay cursor blinking + mImpl->mEventData->mDecorator->DelayCursorBlink(); + } + + // Discard temporary text + events.Clear(); } -void Controller::RequestRelayout() +void Controller::TextReplacedEvent() { - mImpl->mControlInterface.RequestTextRelayout(); + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; } -void Controller::KeyboardFocusGainEvent() +void Controller::TextInsertedEvent() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusGainEvent" ); + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" ); - if( mImpl->mTextInput ) + if( NULL == mImpl->mEventData ) { - TextInput::Event event( TextInput::KEYBOARD_FOCUS_GAIN_EVENT ); - mImpl->mTextInput->mEventQueue.push_back( event ); - - RequestRelayout(); + return; } + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model; TODO - Optimize this + mImpl->mOperationsPending = ALL_OPERATIONS; } -void Controller::KeyboardFocusLostEvent() +void Controller::TextDeletedEvent() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusLostEvent" ); + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" ); - if( mImpl->mTextInput ) + if( NULL == mImpl->mEventData ) { - TextInput::Event event( TextInput::KEYBOARD_FOCUS_LOST_EVENT ); - mImpl->mTextInput->mEventQueue.push_back( event ); - - RequestRelayout(); + return; } + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model; TODO - Optimize this + mImpl->mOperationsPending = ALL_OPERATIONS; } -bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent ) +void Controller::SelectEvent( float x, float y, bool selectAll ) { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyEvent" ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SelectEvent\n" ); - if( mImpl->mTextInput && - keyEvent.state == KeyEvent::Down ) + if( NULL != mImpl->mEventData ) { - int keyCode = keyEvent.keyCode; - const std::string& keyString = keyEvent.keyPressed; - - // Pre-process to separate modifying events from non-modifying input events. - if( Dali::DALI_KEY_ESCAPE == keyCode ) + if( selectAll ) { - // Escape key is a special case which causes focus loss - KeyboardFocusLostEvent(); + Event event( Event::SELECT_ALL ); + mImpl->mEventData->mEventQueue.push_back( event ); } - else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode || - Dali::DALI_KEY_CURSOR_RIGHT == keyCode || - Dali::DALI_KEY_CURSOR_UP == keyCode || - Dali::DALI_KEY_CURSOR_DOWN == keyCode ) + else { - TextInput::Event event( TextInput::CURSOR_KEY_EVENT ); - event.p1.mInt = keyCode; - mImpl->mTextInput->mEventQueue.push_back( event ); + Event event( Event::SELECT ); + event.p2.mFloat = x; + event.p3.mFloat = y; + mImpl->mEventData->mEventQueue.push_back( event ); } - else if( Dali::DALI_KEY_BACKSPACE == keyCode ) + + mImpl->RequestRelayout(); + } +} + +bool Controller::BackspaceKeyEvent() +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this ); + + bool removed = false; + + if( NULL == mImpl->mEventData ) + { + return removed; + } + + // IMF manager is no longer handling key-events + mImpl->ClearPreEditFlag(); + + if( EventData::SELECTING == mImpl->mEventData->mState ) + { + removed = RemoveSelectedText(); + } + else if( mImpl->mEventData->mPrimaryCursorPosition > 0 ) + { + // Remove the character before the current cursor position + removed = RemoveText( -1, + 1, + UPDATE_INPUT_STYLE ); + } + + if( removed ) + { + if( ( 0u != mImpl->mLogicalModel->mText.Count() ) || + !mImpl->IsPlaceholderAvailable() ) { - // Queue a delete event - ModifyEvent event; - event.type = DELETE_TEXT; - mImpl->mModifyEvents.push_back( event ); + mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED ); } - else if( !keyString.empty() ) + else { - // Queue an insert event - ModifyEvent event; - event.type = INSERT_TEXT; - event.text = keyString; - mImpl->mModifyEvents.push_back( event ); + ShowPlaceholderText(); } - - RequestRelayout(); + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->mEventData->mScrollAfterDelete = true; } - return false; + return removed; } -void Controller::TapEvent( unsigned int tapCount, float x, float y ) +// private : Helpers. + +void Controller::ResetText() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected TapEvent" ); + // Reset buffers. + mImpl->mLogicalModel->mText.Clear(); + + // We have cleared everything including the placeholder-text + mImpl->PlaceholderCleared(); + + mImpl->mTextUpdateInfo.mCharacterIndex = 0u; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = 0u; + + // Clear any previous text. + mImpl->mTextUpdateInfo.mClearAll = true; - if( mImpl->mTextInput ) + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; +} + +void Controller::ShowPlaceholderText() +{ + if( mImpl->IsPlaceholderAvailable() ) { - TextInput::Event event( TextInput::TAP_EVENT ); - event.p1.mUint = tapCount; - event.p2.mFloat = x; - event.p3.mFloat = y; - mImpl->mTextInput->mEventQueue.push_back( event ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" ); + + if( NULL == mImpl->mEventData ) + { + return; + } + + mImpl->mEventData->mIsShowingPlaceholderText = true; + + // Disable handles when showing place-holder text + mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false ); + mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false ); + mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false ); + + const char* text( NULL ); + size_t size( 0 ); + + // TODO - Switch placeholder text styles when changing state + if( ( EventData::INACTIVE != mImpl->mEventData->mState ) && + ( 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() ) ) + { + text = mImpl->mEventData->mPlaceholderTextActive.c_str(); + size = mImpl->mEventData->mPlaceholderTextActive.size(); + } + else + { + text = mImpl->mEventData->mPlaceholderTextInactive.c_str(); + size = mImpl->mEventData->mPlaceholderTextInactive.size(); + } + + mImpl->mTextUpdateInfo.mCharacterIndex = 0u; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters; + + // Reset model for showing placeholder. + mImpl->mLogicalModel->mText.Clear(); + mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor ); + + // Convert text into UTF-32 + Vector& utf32Characters = mImpl->mLogicalModel->mText; + utf32Characters.Resize( size ); - RequestRelayout(); + // This is a bit horrible but std::string returns a (signed) char* + const uint8_t* utf8 = reinterpret_cast( text ); + + // Transform a text array encoded in utf8 into an array encoded in utf32. + // It returns the actual number of characters. + const Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() ); + utf32Characters.Resize( characterCount ); + + // The characters to be added. + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = characterCount; + + // Reset the cursor position + mImpl->mEventData->mPrimaryCursorPosition = 0; + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; + + // Update the rest of the model during size negotiation + mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED ); } } -void Controller::PanEvent( Gesture::State state, const Vector2& displacement ) +void Controller::ClearFontData() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected PanEvent" ); - - if( mImpl->mTextInput ) + if( mImpl->mFontDefaults ) { - TextInput::Event event( TextInput::PAN_EVENT ); - event.p1.mInt = state; - event.p2.mFloat = displacement.x; - event.p3.mFloat = displacement.y; - mImpl->mTextInput->mEventQueue.push_back( event ); - - RequestRelayout(); + mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID } + + // Set flags to update the model. + mImpl->mTextUpdateInfo.mCharacterIndex = 0u; + mImpl->mTextUpdateInfo.mNumberOfCharactersToRemove = mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters; + mImpl->mTextUpdateInfo.mNumberOfCharactersToAdd = mImpl->mLogicalModel->mText.Count(); + + mImpl->mTextUpdateInfo.mClearAll = true; + mImpl->mTextUpdateInfo.mFullRelayoutNeeded = true; + mImpl->mRecalculateNaturalSize = true; + + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + VALIDATE_FONTS | + SHAPE_TEXT | + GET_GLYPH_METRICS | + LAYOUT | + UPDATE_LAYOUT_SIZE | + REORDER | + ALIGN ); } -void Controller::GrabHandleEvent( GrabHandleState state, float x, float y ) +void Controller::ClearStyleData() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected GrabHandleEvent" ); + mImpl->mLogicalModel->mColorRuns.Clear(); + mImpl->mLogicalModel->ClearFontDescriptionRuns(); +} - if( mImpl->mTextInput ) +void Controller::ResetCursorPosition( CharacterIndex cursorIndex ) +{ + // Reset the cursor position + if( NULL != mImpl->mEventData ) { - TextInput::Event event( TextInput::GRAB_HANDLE_EVENT ); - event.p1.mUint = state; - event.p2.mFloat = x; - event.p3.mFloat = y; - mImpl->mTextInput->mEventQueue.push_back( event ); + mImpl->mEventData->mPrimaryCursorPosition = cursorIndex; - RequestRelayout(); + // Update the cursor if it's in editing mode. + if( EventData::IsEditingState( mImpl->mEventData->mState ) ) + { + mImpl->mEventData->mUpdateCursorPosition = true; + } } } -Controller::~Controller() +void Controller::ResetScrollPosition() { - delete mImpl; + if( NULL != mImpl->mEventData ) + { + // Reset the scroll position. + mImpl->mScrollPosition = Vector2::ZERO; + mImpl->mEventData->mScrollAfterUpdatePosition = true; + } } -Controller::Controller( ControlInterface& controlInterface ) +// private : Private contructors & copy operator. + +Controller::Controller() : mImpl( NULL ) { - mImpl = new Controller::Impl( controlInterface ); + mImpl = new Controller::Impl( NULL, NULL ); +} + +Controller::Controller( ControlInterface* controlInterface ) +{ + mImpl = new Controller::Impl( controlInterface, NULL ); +} + +Controller::Controller( ControlInterface* controlInterface, + EditableControlInterface* editableControlInterface ) +{ + mImpl = new Controller::Impl( controlInterface, + editableControlInterface ); +} + +// The copy constructor and operator are left unimplemented. + +// protected : Destructor. + +Controller::~Controller() +{ + delete mImpl; } } // namespace Text