X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller.cpp;h=af0698694314e0cb967fbc16f03de046027ef14c;hp=c302440a70521bf2f873cec2f0ca9f4afa9e2b40;hb=27c3ff64b7236bb404bd931259674094390d63a1;hpb=eb76d9131e2e66aeaeb2a1a6ca66b9fe80f0c873 diff --git a/dali-toolkit/internal/text/text-controller.cpp b/dali-toolkit/internal/text/text-controller.cpp index c302440..af06986 100644 --- a/dali-toolkit/internal/text/text-controller.cpp +++ b/dali-toolkit/internal/text/text-controller.cpp @@ -20,29 +20,33 @@ // EXTERNAL INCLUDES #include -#include +#include #include -#include +#include // INTERNAL INCLUDES #include #include -#include #include -#include #include #include #include #include +#include +#include #include -#include - -using std::vector; namespace { + +#if defined(DEBUG_ENABLED) + Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS"); +#endif + const float MAX_FLOAT = std::numeric_limits::max(); -const std::string EMPTY_STRING; + +const std::string EMPTY_STRING(""); + } // namespace namespace Dali @@ -54,447 +58,156 @@ namespace Toolkit namespace Text { -struct Controller::TextInput +ControllerPtr Controller::New( ControlInterface& controlInterface ) { - // Used to queue input events until DoRelayout() - enum EventType - { - KEYBOARD_FOCUS_GAIN_EVENT, - KEYBOARD_FOCUS_LOST_EVENT, - KEY_EVENT, - TAP_EVENT, - GRAB_HANDLE_EVENT - }; - - union Param - { - int mInt; - unsigned int mUint; - float mFloat; - char* mString; - }; - - struct Event - { - Event( EventType eventType ) - : type( eventType ) - { - p1.mInt = 0; - p2.mInt = 0; - } - - EventType type; - Param p1; - Param p2; - Param p3; - }; - - enum State - { - INACTIVE, - SELECTING, - EDITING - }; - - TextInput( LogicalModelPtr logicalModel, - VisualModelPtr visualModel, - DecoratorPtr decorator ) - : mLogicalModel( logicalModel ), - mVisualModel( visualModel ), - mDecorator( decorator ), - mState( INACTIVE ) - { - } - - /** - * @brief Helper to move the cursor, grab handle etc. - */ - bool ProcessInputEvents() - { - mDecoratorUpdated = false; - - 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 KEY_EVENT: - { - OnKeyEvent( *iter ); - break; - } - case TAP_EVENT: - { - OnTapEvent( *iter ); - break; - } - case GRAB_HANDLE_EVENT: - { - OnGrabHandleEvent( *iter ); - break; - } - } - } - } - - mEventQueue.clear(); - - return mDecoratorUpdated; - } - - void OnKeyboardFocus( bool hasFocus ) - { - } - - void OnKeyEvent( const Event& event ) - { - int keyCode = event.p1.mInt; - - // Handle state changes - if( Dali::DALI_KEY_ESCAPE == keyCode ) - { - ChangeState( INACTIVE ); // Escape key ends edit mode - } - else if ( event.p2.mString ) - { - // Some text may be selected, hiding keyboard causes an empty keystring to be sent, we don't want to delete highlight in this case - ChangeState( EDITING ); - } - - // Handle the actual key event - if( Dali::DALI_KEY_BACKSPACE == keyCode ) - { - HandleBackspaceKey(); - } - 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 ) - { - HandleCursorKey( keyCode ); - } - else if ( event.p2.mString ) - { - HandleKeyString( event.p2.mString ); - - delete [] event.p2.mString; - } - } + return ControllerPtr( new Controller( controlInterface ) ); +} - void HandleBackspaceKey() +void Controller::EnableTextInput( DecoratorPtr decorator ) +{ + if( !mImpl->mEventData ) { - // TODO + mImpl->mEventData = new EventData( decorator ); } +} - void HandleCursorKey( int keyCode ) - { - // TODO - } +void Controller::SetText( const std::string& text ) +{ + // Cancel previously queued inserts etc. + mImpl->mModifyEvents.clear(); - void HandleKeyString( const char* keyString ) - { - // TODO - } + // Remove the previously set text + ResetText(); - void OnTapEvent( const Event& event ) + if( ! text.empty() ) { - unsigned int tapCount = event.p1.mUint; - - if( 1u == tapCount ) - { - ChangeState( EDITING ); - - float xPosition = event.p2.mFloat; - float yPosition = event.p3.mFloat; - float height(0.0f); - GetClosestCursorPosition( xPosition, yPosition, height ); - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); - - mDecoratorUpdated = true; - } - else if( 2u == tapCount ) - { - ChangeState( SELECTING ); - } - } + // Convert text into UTF-32 + Vector& utf32Characters = mImpl->mLogicalModel->mText; + utf32Characters.Resize( text.size() ); - void OnGrabHandleEvent( const Event& event ) - { - unsigned int state = event.p1.mUint; + // This is a bit horrible but std::string returns a (signed) char* + const uint8_t* utf8 = reinterpret_cast( text.c_str() ); - if( GRAB_HANDLE_PRESSED == state ) - { - float xPosition = event.p2.mFloat; - float yPosition = event.p3.mFloat; - float height(0.0f); + // 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 ); - GetClosestCursorPosition( xPosition, yPosition, height ); + DALI_ASSERT_DEBUG( text.size() >= characterCount && "Invalid UTF32 conversion length" ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, text.size(), mImpl->mLogicalModel->mText.Count() ); - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); - mDecorator->HidePopup(); - mDecoratorUpdated = true; - } - else if ( GRAB_HANDLE_RELEASED == state ) + // Reset the cursor position + if( mImpl->mEventData ) { - mDecorator->ShowPopup(); + mImpl->mEventData->mPrimaryCursorPosition = characterCount; } + // Update the rest of the model during size negotiation + mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED ); } - - void ChangeState( State newState ) + else { - 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 ); - mDecorator->StartCursorBlink(); - mDecorator->SetGrabHandleActive( true ); - mDecorator->SetSelectionActive( false ); - mDecoratorUpdated = true; - } - } + ShowPlaceholderText(); } - void GetClosestCursorPosition( float& x, float& y, float& height ) + if( mImpl->mEventData ) { - // TODO - Look at LineRuns first - - Text::Length numberOfGlyphs = mVisualModel->GetNumberOfGlyphs(); - if( 0 == numberOfGlyphs ) - { - return; - } - - Vector glyphs; - glyphs.Resize( numberOfGlyphs ); - mVisualModel->GetGlyphs( glyphs.Begin(), 0, numberOfGlyphs ); - const GlyphInfo* const glyphsBuffer = glyphs.Begin(); - - Vector positions; - positions.Resize( numberOfGlyphs ); - mVisualModel->GetGlyphPositions( positions.Begin(), 0, numberOfGlyphs ); - const Vector2* const positionsBuffer = positions.Begin(); - - unsigned int closestGlyph = 0; - float closestDistance = MAX_FLOAT; - - for( unsigned int i = 0, numberOfGLyphs = glyphs.Count(); i < numberOfGLyphs; ++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; - - float distanceToGlyph = fabsf( glyphX - x ) + fabsf( glyphY - y ); - - if( distanceToGlyph < closestDistance ) - { - closestDistance = distanceToGlyph; - closestGlyph = i; - } - } - - // TODO - Consider RTL languages - x = positions[closestGlyph].x + glyphs[closestGlyph].width; - y = 0.0f; - - FontMetrics metrics; - TextAbstraction::FontClient::Get().GetFontMetrics( glyphs[closestGlyph].fontId, metrics ); - height = metrics.height; // TODO - Fix for multi-line + // Cancel previously queued events + mImpl->mEventData->mEventQueue.clear(); } - LogicalModelPtr mLogicalModel; - VisualModelPtr mVisualModel; - DecoratorPtr mDecorator; - - std::string mPlaceholderText; - - /** - * 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. - - State mState; - - bool mDecoratorUpdated; -}; + // Reset keyboard as text changed + mImpl->PreEditReset(); +} -struct Controller::FontDefaults +void Controller::GetText( std::string& text ) const { - FontDefaults() - : mDefaultPointSize(0.0f), - mFontId(0u) + if( ! mImpl->IsShowingPlaceholderText() ) { - } + Vector& utf32Characters = mImpl->mLogicalModel->mText; - FontId GetFontId( TextAbstraction::FontClient& fontClient ) - { - if( !mFontId ) + if( 0u != utf32Characters.Count() ) { - Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64; - mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize ); + Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text ); } - - return mFontId; } - - 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(), - mNewText(), - mControlSize(), - mOperationsPending( NO_OPERATION ), - mRecalculateNaturalSize( true ) + else { - mLogicalModel = LogicalModel::New(); - mVisualModel = VisualModel::New(); - - mFontClient = TextAbstraction::FontClient::Get(); - - mView.SetVisualModel( mVisualModel ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this ); } +} - ~Impl() +unsigned int Controller::GetLogicalCursorPosition() const +{ + if( mImpl->mEventData ) { - delete mTextInput; + return mImpl->mEventData->mPrimaryCursorPosition; } - 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::string mNewText; ///< 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 ) ); + return 0u; } -void Controller::SetText( const std::string& text ) +void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text ) { - // Keep until size negotiation - mImpl->mNewText = text; - - // All operations need to be done. (convert to utf32, get break info, ..., layout, ...) - mImpl->mOperationsPending = ALL_OPERATIONS; - - // The natural size needs to be re-calculated. - mImpl->mRecalculateNaturalSize = true; - - // Reset buffers. - mImpl->mLogicalModel->SetText( NULL, 0u ); - mImpl->mLogicalModel->SetScripts( NULL, 0u ); - mImpl->mLogicalModel->SetFonts( NULL, 0u ); - mImpl->mLogicalModel->SetLineBreakInfo( NULL, 0u ); - mImpl->mLogicalModel->SetWordBreakInfo( NULL, 0u ); - mImpl->mLogicalModel->SetBidirectionalInfo( NULL, 0u ); - mImpl->mLogicalModel->SetVisualToLogicalMap( NULL, 0u ); - mImpl->mVisualModel->SetGlyphs( NULL, NULL, NULL, 0u ); - mImpl->mVisualModel->SetGlyphPositions( NULL, 0u ); - mImpl->mVisualModel->SetLines( NULL, 0u ); - - if( mImpl->mTextInput ) + if( mImpl->mEventData ) { - // Cancel previously queued events - mImpl->mTextInput->mEventQueue.clear(); + if( PLACEHOLDER_TYPE_INACTIVE == type ) + { + mImpl->mEventData->mPlaceholderTextInactive = text; + } + else + { + mImpl->mEventData->mPlaceholderTextActive = text; + } - // TODO - Hide selection decorations + ShowPlaceholderText(); } } -void Controller::GetText( std::string& text ) const +void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const { - if( !mImpl->mNewText.empty() ) - { - text = mImpl->mNewText; - } - else + if( mImpl->mEventData ) { - // TODO - Convert from UTF-32 + if( PLACEHOLDER_TYPE_INACTIVE == type ) + { + text = mImpl->mEventData->mPlaceholderTextInactive; + } + else + { + text = mImpl->mEventData->mPlaceholderTextActive; + } } } -void Controller::SetPlaceholderText( const std::string& text ) +void Controller::SetMaximumNumberOfCharacters( int maxCharacters ) { - if( !mImpl->mTextInput ) + if ( maxCharacters >= 0 ) { - mImpl->mTextInput->mPlaceholderText = text; + mImpl->mMaximumNumberOfCharacters = maxCharacters; } } -void Controller::GetPlaceholderText( std::string& text ) const +int Controller::GetMaximumNumberOfCharacters() { - if( !mImpl->mTextInput ) - { - text = mImpl->mTextInput->mPlaceholderText; - } + return mImpl->mMaximumNumberOfCharacters; } void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily ) { if( !mImpl->mFontDefaults ) { - mImpl->mFontDefaults = new Controller::FontDefaults(); + mImpl->mFontDefaults = new FontDefaults(); } mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + + // Clear the font-specific data + ClearFontData(); + mImpl->mOperationsPending = ALL_OPERATIONS; mImpl->mRecalculateNaturalSize = true; + + mImpl->RequestRelayout(); } const std::string& Controller::GetDefaultFontFamily() const @@ -511,13 +224,18 @@ void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle ) { if( !mImpl->mFontDefaults ) { - mImpl->mFontDefaults = new Controller::FontDefaults(); + mImpl->mFontDefaults = new FontDefaults(); } mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + + // Clear the font-specific data + ClearFontData(); + mImpl->mOperationsPending = ALL_OPERATIONS; mImpl->mRecalculateNaturalSize = true; + + mImpl->RequestRelayout(); } const std::string& Controller::GetDefaultFontStyle() const @@ -534,13 +252,18 @@ void Controller::SetDefaultPointSize( float pointSize ) { if( !mImpl->mFontDefaults ) { - mImpl->mFontDefaults = new Controller::FontDefaults(); + mImpl->mFontDefaults = new FontDefaults(); } mImpl->mFontDefaults->mDefaultPointSize = pointSize; - mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + + // Clear the font-specific data + ClearFontData(); + mImpl->mOperationsPending = ALL_OPERATIONS; mImpl->mRecalculateNaturalSize = true; + + mImpl->RequestRelayout(); } float Controller::GetDefaultPointSize() const @@ -553,335 +276,513 @@ float Controller::GetDefaultPointSize() const return 0.0f; } -void Controller::GetDefaultFonts( Vector& fonts, Length numberOfCharacters ) +void Controller::SetTextColor( const Vector4& textColor ) { - if( mImpl->mFontDefaults ) - { - FontRun fontRun; - fontRun.characterRun.characterIndex = 0; - fontRun.characterRun.numberOfCharacters = numberOfCharacters; - fontRun.fontId = mImpl->mFontDefaults->GetFontId( mImpl->mFontClient ); - fontRun.isDefault = true; + mImpl->mTextColor = textColor; - fonts.PushBack( fontRun ); + if( ! mImpl->IsShowingPlaceholderText() ) + { + mImpl->mVisualModel->SetTextColor( textColor ); } } -void Controller::EnableTextInput( DecoratorPtr decorator ) +const Vector4& Controller::GetTextColor() const { - if( !mImpl->mTextInput ) - { - mImpl->mTextInput = new TextInput( mImpl->mLogicalModel, mImpl->mVisualModel, decorator ); - } + return mImpl->mTextColor; } -bool Controller::Relayout( const Vector2& size ) +bool Controller::RemoveText( int cursorOffset, int numberOfChars ) { - if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) ) - { - // Not worth to relayout if width or height is equal to zero. - return false; - } - - if( size != mImpl->mControlSize ) - { - // Operations that need to be done if the size changes. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | - LAYOUT | - UPDATE_ACTUAL_SIZE | - UPDATE_POSITIONS | - UPDATE_LINES | - REORDER ); - - mImpl->mControlSize = size; - } - - Size layoutSize; - bool updated = DoRelayout( mImpl->mControlSize, - mImpl->mOperationsPending, - layoutSize ); + bool removed( false ); - // Do not re-do any operation until something changes. - mImpl->mOperationsPending = NO_OPERATION; + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfChars %d\n", + this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfChars ); - if( mImpl->mTextInput ) + if( ! mImpl->IsShowingPlaceholderText() ) { - // Move the cursor, grab handle etc. - updated = mImpl->mTextInput->ProcessInputEvents() || updated; - } - - return updated; -} - -bool Controller::DoRelayout( const Vector2& size, - OperationsMask operationsRequired, - Size& layoutSize ) -{ - bool viewUpdated( false ); + // Delete at current cursor position + Vector& currentText = mImpl->mLogicalModel->mText; + CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition; - // Calculate the operations to be done. - const OperationsMask operations = static_cast( mImpl->mOperationsPending & operationsRequired ); + CharacterIndex cursorIndex = oldCursorIndex; - Vector utf32Characters; - Length characterCount = 0u; - if( CONVERT_TO_UTF32 & operations ) - { - std::string& text = mImpl->mNewText; + // Validate the cursor position & number of characters + if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex ) + { + cursorIndex = oldCursorIndex + cursorOffset; + } - // Convert text into UTF-32 - utf32Characters.Resize( text.size() ); + if( (cursorIndex + numberOfChars) > currentText.Count() ) + { + numberOfChars = currentText.Count() - cursorIndex; + } - // This is a bit horrible but std::string returns a (signed) char* - const uint8_t* utf8 = reinterpret_cast( text.c_str() ); + if( cursorIndex >= 0 && + (cursorIndex + numberOfChars) <= currentText.Count() ) + { + Vector::Iterator first = currentText.Begin() + cursorIndex; + Vector::Iterator last = first + numberOfChars; - // 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 ); + currentText.Erase( first, last ); - // Sets the text into the model. - mImpl->mLogicalModel->SetText( utf32Characters.Begin(), characterCount ); + // Cursor position retreat + oldCursorIndex = cursorIndex; - // Discard temporary text - text.clear(); + DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars ); + removed = true; + } } - const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters(); + return removed; +} - Vector lineBreakInfo; - if( GET_LINE_BREAKS & operations ) +void Controller::SetPlaceholderTextColor( const Vector4& textColor ) +{ + if( mImpl->mEventData ) { - // 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( characterCount, TextAbstraction::LINE_NO_BREAK ); - - SetLineBreakInfo( utf32Characters, - lineBreakInfo ); - - mImpl->mLogicalModel->SetLineBreakInfo( lineBreakInfo.Begin(), characterCount ); + mImpl->mEventData->mPlaceholderTextColor = textColor; } - Vector wordBreakInfo; - if( GET_WORD_BREAKS & operations ) + if( mImpl->IsShowingPlaceholderText() ) { - // Retrieves the word break info. The word break info is used to layout the text (where to wrap the text in lines). - wordBreakInfo.Resize( characterCount, TextAbstraction::WORD_NO_BREAK ); - - SetWordBreakInfo( utf32Characters, - wordBreakInfo ); + mImpl->mVisualModel->SetTextColor( textColor ); + } +} - mImpl->mLogicalModel->SetWordBreakInfo( wordBreakInfo.Begin(), characterCount ); +const Vector4& Controller::GetPlaceholderTextColor() const +{ + if( mImpl->mEventData ) + { + return mImpl->mEventData->mPlaceholderTextColor; } - const bool getScripts = GET_SCRIPTS & operations; - const bool validateFonts = VALIDATE_FONTS & operations; + return Color::BLACK; +} - Vector scripts; - Vector validFonts; +void Controller::SetShadowOffset( const Vector2& shadowOffset ) +{ + mImpl->mVisualModel->SetShadowOffset( shadowOffset ); +} - if( getScripts || validateFonts ) - { - // Validates the fonts assigned by the application or assigns default ones. - // It makes sure all the characters are going to be rendered by the correct font. - MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get(); +const Vector2& Controller::GetShadowOffset() const +{ + return mImpl->mVisualModel->GetShadowOffset(); +} - if( getScripts ) - { - // Retrieves the scripts used in the text. - multilanguageSupport.SetScripts( utf32Characters, - lineBreakInfo, - scripts ); +void Controller::SetShadowColor( const Vector4& shadowColor ) +{ + mImpl->mVisualModel->SetShadowColor( shadowColor ); +} - // Sets the scripts into the model. - mImpl->mLogicalModel->SetScripts( scripts.Begin(), scripts.Count() ); - } +const Vector4& Controller::GetShadowColor() const +{ + return mImpl->mVisualModel->GetShadowColor(); +} - if( validateFonts ) - { - // 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 ); - - // Sets the fonts into the model. - mImpl->mLogicalModel->SetFonts( validFonts.Begin(), validFonts.Count() ); - } - } +void Controller::SetUnderlineColor( const Vector4& color ) +{ + mImpl->mVisualModel->SetUnderlineColor( color ); +} - Vector bidirectionalInfo; - if( BIDI_INFO & operations ) - { - // Some vectors with data needed to get the paragraph's bidirectional info may be void - // after the first time the text has been laid out. - // Fill the vectors again. +const Vector4& Controller::GetUnderlineColor() const +{ + return mImpl->mVisualModel->GetUnderlineColor(); +} - if( 0u == utf32Characters.Count() ) - { - utf32Characters.Resize( numberOfCharacters ); +void Controller::SetUnderlineEnabled( bool enabled ) +{ + mImpl->mVisualModel->SetUnderlineEnabled( enabled ); +} - mImpl->mLogicalModel->GetText( utf32Characters.Begin(), - 0u, - numberOfCharacters ); - } +bool Controller::IsUnderlineEnabled() const +{ + return mImpl->mVisualModel->IsUnderlineEnabled(); +} - if( 0u == lineBreakInfo.Count() ) - { - lineBreakInfo.Resize( numberOfCharacters ); +void Controller::SetUnderlineHeight( float height ) +{ + mImpl->mVisualModel->SetUnderlineHeight( height ); +} - mImpl->mLogicalModel->GetLineBreakInfo( lineBreakInfo.Begin(), - 0u, - numberOfCharacters ); - } +float Controller::GetUnderlineHeight() const +{ + return mImpl->mVisualModel->GetUnderlineHeight(); +} + +void Controller::SetEnableCursorBlink( bool enable ) +{ + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" ); - if( 0u == scripts.Count() ) + if( mImpl->mEventData ) + { + mImpl->mEventData->mCursorBlinkEnabled = enable; + + if( !enable && + mImpl->mEventData->mDecorator ) { - scripts.Resize( mImpl->mLogicalModel->GetNumberOfScriptRuns( 0u, - numberOfCharacters ) ); - mImpl->mLogicalModel->GetScriptRuns( scripts.Begin(), - 0u, - numberOfCharacters ); + mImpl->mEventData->mDecorator->StopCursorBlink(); } + } +} - // Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's - // bidirectional info. +bool Controller::GetEnableCursorBlink() const +{ + if( mImpl->mEventData ) + { + return mImpl->mEventData->mCursorBlinkEnabled; + } - Length numberOfParagraphs = 0u; + return false; +} - const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin(); - for( Length index = 0u; index < characterCount; ++index ) - { - if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) ) - { - ++numberOfParagraphs; - } - } +const Vector2& Controller::GetScrollPosition() const +{ + if( mImpl->mEventData ) + { + return mImpl->mEventData->mScrollPosition; + } + + return Vector2::ZERO; +} + +const Vector2& Controller::GetAlignmentOffset() const +{ + return mImpl->mAlignmentOffset; +} + +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(); - bidirectionalInfo.Reserve( numberOfParagraphs ); + 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 ); - // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts. - SetBidirectionalInfo( utf32Characters, - scripts, - lineBreakInfo, - bidirectionalInfo ); + // Operations that need to be done if the size changes. + const OperationsMask sizeOperations = static_cast( LAYOUT | + ALIGN | + REORDER ); - mImpl->mLogicalModel->SetBidirectionalInfo( bidirectionalInfo.Begin(), - bidirectionalInfo.Count() ); + DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ), + static_cast( onlyOnceOperations | + sizeOperations ), + naturalSize.GetVectorXY() ); + + // Do not do again the only once operations. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + + // Do the size related operations again. + 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; + + 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 ); + } + + return naturalSize; +} - Vector glyphs; - Vector glyphsToCharactersMap; - Vector charactersPerGlyph; - if( SHAPE_TEXT & operations ) +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( width != mImpl->mControlSize.width ) { - if( 0u == validFonts.Count() ) - { - validFonts.Resize( mImpl->mLogicalModel->GetNumberOfFontRuns( 0u, - numberOfCharacters ) ); - mImpl->mLogicalModel->GetFontRuns( validFonts.Begin(), - 0u, - numberOfCharacters ); - } + // 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 ); - // Shapes the text. - ShapeText( utf32Characters, - lineBreakInfo, - scripts, - validFonts, - glyphs, - glyphsToCharactersMap, - charactersPerGlyph ); + // Operations that need to be done if the size changes. + const OperationsMask sizeOperations = static_cast( LAYOUT | + ALIGN | + REORDER ); + + DoRelayout( Size( width, MAX_FLOAT ), + static_cast( onlyOnceOperations | + sizeOperations ), + layoutSize ); + + // Do not do again the only once operations. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); + + // Do the size related operations again. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height ); } + else + { + layoutSize = mImpl->mVisualModel->GetActualSize(); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height ); + } + + return layoutSize.height; +} - if( GET_GLYPH_METRICS & operations ) +bool Controller::Relayout( const Size& size ) +{ + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height ); + + if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) ) { - mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), glyphs.Count() ); + 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. + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" ); + return glyphsRemoved; } - Length numberOfGlyphs = glyphs.Count(); - if( 0u != numberOfGlyphs ) + if( size != mImpl->mControlSize ) { - // Sets the glyphs into the model. - mImpl->mVisualModel->SetGlyphs( glyphs.Begin(), - glyphsToCharactersMap.Begin(), - charactersPerGlyph.Begin(), - numberOfGlyphs ); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mControlSize.width, mImpl->mControlSize.height ); + + // Operations that need to be done if the size changes. + mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | + LAYOUT | + ALIGN | + UPDATE_ACTUAL_SIZE | + REORDER ); + + mImpl->mControlSize = size; } - if( LAYOUT & operations ) + // Make sure the model is up-to-date before layouting + ProcessModifyEvents(); + mImpl->UpdateModel( mImpl->mOperationsPending ); + + Size layoutSize; + bool updated = DoRelayout( mImpl->mControlSize, + mImpl->mOperationsPending, + layoutSize ); + + // Do not re-do any operation until something changes. + mImpl->mOperationsPending = NO_OPERATION; + + // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated. + CalculateTextAlignment( size ); + + if( mImpl->mEventData ) { - // 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. + // Move the cursor, grab handle etc. + updated = mImpl->ProcessInputEvents() || updated; + } - const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters(); - numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs(); + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" ); + return updated; +} - if( 0u == lineBreakInfo.Count() ) - { - lineBreakInfo.Resize( numberOfCharacters ); - mImpl->mLogicalModel->GetLineBreakInfo( lineBreakInfo.Begin(), - 0u, - numberOfCharacters ); - } +void Controller::ProcessModifyEvents() +{ + std::vector& events = mImpl->mModifyEvents; - if( 0u == wordBreakInfo.Count() ) + for( unsigned int i=0; imLogicalModel->GetWordBreakInfo( wordBreakInfo.Begin(), - 0u, - numberOfCharacters ); - } + // A (single) replace event should come first, otherwise we wasted time processing NOOP events + DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" ); - if( 0u == glyphs.Count() ) + TextReplacedEvent(); + } + else if( ModifyEvent::TEXT_INSERTED == events[0].type ) { - glyphs.Resize( numberOfGlyphs ); - mImpl->mVisualModel->GetGlyphs( glyphs.Begin(), - 0u, - numberOfGlyphs ); + TextInsertedEvent(); } - - if( 0u == glyphsToCharactersMap.Count() ) + else if( ModifyEvent::TEXT_DELETED == events[0].type ) { - glyphsToCharactersMap.Resize( numberOfGlyphs ); - mImpl->mVisualModel->GetGlyphToCharacterMap( glyphsToCharactersMap.Begin(), - 0u, - numberOfGlyphs ); + // Placeholder-text cannot be deleted + if( !mImpl->IsShowingPlaceholderText() ) + { + TextDeletedEvent(); + } } + } + + // Discard temporary text + events.clear(); +} + +void Controller::ResetText() +{ + // Reset buffers. + mImpl->mLogicalModel->mText.Clear(); + ClearModelData(); + + // Reset the cursor position + if( mImpl->mEventData ) + { + mImpl->mEventData->mPrimaryCursorPosition = 0; + } + + // We have cleared everything including the placeholder-text + mImpl->PlaceholderCleared(); + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; +} + +void Controller::TextReplacedEvent() +{ + // Reset buffers. + ClearModelData(); + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->UpdateModel( ALL_OPERATIONS ); + mImpl->mOperationsPending = static_cast( LAYOUT | + ALIGN | + UPDATE_ACTUAL_SIZE | + REORDER ); +} + +void Controller::TextInsertedEvent() +{ + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" ); + + // TODO - Optimize this + ClearModelData(); + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // Apply modifications to the model; TODO - Optimize this + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->UpdateModel( ALL_OPERATIONS ); + mImpl->mOperationsPending = static_cast( LAYOUT | + ALIGN | + UPDATE_ACTUAL_SIZE | + REORDER ); + + // Queue a cursor reposition event; this must wait until after DoRelayout() + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->mEventData->mScrollAfterUpdateCursorPosition = true; +} + +void Controller::TextDeletedEvent() +{ + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" ); + + // TODO - Optimize this + ClearModelData(); + + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; - if( 0u == charactersPerGlyph.Count() ) + // Apply modifications to the model; TODO - Optimize this + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->UpdateModel( ALL_OPERATIONS ); + mImpl->mOperationsPending = static_cast( LAYOUT | + ALIGN | + UPDATE_ACTUAL_SIZE | + REORDER ); + + // Queue a cursor reposition event; this must wait until after DoRelayout() + mImpl->mEventData->mUpdateCursorPosition = true; + mImpl->mEventData->mScrollAfterUpdateCursorPosition = true; +} + +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 ) + { + // 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(); + + if( 0u == numberOfGlyphs ) { - charactersPerGlyph.Resize( numberOfGlyphs ); - mImpl->mVisualModel->GetCharactersPerGlyphMap( charactersPerGlyph.Begin(), - 0u, - numberOfGlyphs ); + // 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& characterDirection = mImpl->mLogicalModel->mCharacterDirections; + Vector& glyphs = mImpl->mVisualModel->mGlyphs; + Vector& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters; + Vector& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph; + // Set the layout parameters. LayoutParameters layoutParameters( size, + mImpl->mLogicalModel->mText.Begin(), lineBreakInfo.Begin(), wordBreakInfo.Begin(), + ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL, numberOfGlyphs, glyphs.Begin(), glyphsToCharactersMap.Begin(), charactersPerGlyph.Begin() ); - // Reserve space to set the positions of the glyphs. - Vector glyphPositions; - glyphPositions.Resize( numberOfGlyphs ); - // 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; - lines.Reserve( mImpl->mLogicalModel->GetNumberOfBidirectionalInfoRuns( 0u, numberOfCharacters ) ); + 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() ); + + // Resize the vector of positions to have the same size than the vector of glyphs. + Vector& glyphPositions = mImpl->mVisualModel->mGlyphPositions; + glyphPositions.Resize( numberOfGlyphs ); // Update the visual model. viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters, @@ -894,15 +795,7 @@ bool Controller::DoRelayout( const Vector2& size, // Reorder the lines if( REORDER & operations ) { - const Length numberOfBidiParagraphs = mImpl->mLogicalModel->GetNumberOfBidirectionalInfoRuns( 0u, numberOfCharacters ); - - if( 0u == bidirectionalInfo.Count() ) - { - bidirectionalInfo.Resize( numberOfBidiParagraphs ); - mImpl->mLogicalModel->GetBidirectionalInfo( bidirectionalInfo.Begin(), - 0u, - numberOfCharacters ); - } + Vector& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo; // Check first if there are paragraphs with bidirectional info. if( 0u != bidirectionalInfo.Count() ) @@ -927,22 +820,10 @@ bool Controller::DoRelayout( const Vector2& size, layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns; // Get the character to glyph conversion table and set into the layout. - Vector characterToGlyphMap; - characterToGlyphMap.Resize( numberOfCharacters ); - - layoutParameters.charactersToGlyphsBuffer = characterToGlyphMap.Begin(); - mImpl->mVisualModel->GetCharacterToGlyphMap( layoutParameters.charactersToGlyphsBuffer, - 0u, - numberOfCharacters ); + layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin(); // Get the glyphs per character table and set into the layout. - Vector glyphsPerCharacter; - glyphsPerCharacter.Resize( numberOfCharacters ); - - layoutParameters.glyphsPerCharacterBuffer = glyphsPerCharacter.Begin(); - mImpl->mVisualModel->GetGlyphsPerCharacterMap( layoutParameters.glyphsPerCharacterBuffer, - 0u, - numberOfCharacters ); + layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin(); // Re-layout the text. Reorder those lines with right to left characters. mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters, @@ -959,20 +840,14 @@ bool Controller::DoRelayout( const Vector2& size, free( bidiLineInfo.visualToLogicalMap ); } } - } + } // REORDER - // Sets the positions into the model. - if( UPDATE_POSITIONS & operations ) + if( ALIGN & operations ) { - mImpl->mVisualModel->SetGlyphPositions( glyphPositions.Begin(), - numberOfGlyphs ); - } - - // Sets the lines into the model. - if( UPDATE_LINES & operations ) - { - mImpl->mVisualModel->SetLines( lines.Begin(), - lines.Count() ); + mImpl->mLayoutEngine.Align( layoutParameters, + layoutSize, + lines, + glyphPositions ); } // Sets the actual size. @@ -980,100 +855,79 @@ bool Controller::DoRelayout( const Vector2& size, { mImpl->mVisualModel->SetActualSize( layoutSize ); } - } + } // view updated } else { layoutSize = mImpl->mVisualModel->GetActualSize(); } + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated %s\n", ( viewUpdated ? "true" : "false" ) ); return viewUpdated; } -Vector3 Controller::GetNaturalSize() +void Controller::CalculateTextAlignment( const Size& size ) { - Vector3 naturalSize; - - 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 | - SHAPE_TEXT | - GET_GLYPH_METRICS ); - - // Operations that need to be done if the size changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - REORDER ); - - DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ), - static_cast( onlyOnceOperations | - sizeOperations ), - naturalSize.GetVectorXY() ); + // Get the direction of the first character. + const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u ); - // Do not do again the only once operations. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); - - // Do the size related operations again. - 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() ); + const Size& actualSize = mImpl->mVisualModel->GetActualSize(); - mImpl->mRecalculateNaturalSize = false; - } - else + // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END; + LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment(); + if( firstParagraphDirection && + ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) ) { - naturalSize = mImpl->mVisualModel->GetNaturalSize(); + if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment ) + { + horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END; + } + else + { + horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN; + } } - return naturalSize; -} - -float Controller::GetHeightForWidth( float width ) -{ - Size layoutSize; - if( width != mImpl->mControlSize.width ) + switch( horizontalAlignment ) { - // 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 | - SHAPE_TEXT | - GET_GLYPH_METRICS ); - - // Operations that need to be done if the size changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - REORDER ); - - DoRelayout( Size( width, MAX_FLOAT ), - static_cast( onlyOnceOperations | - sizeOperations ), - layoutSize ); - - // Do not do again the only once operations. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending & ~onlyOnceOperations ); - - // Do the size related operations again. - mImpl->mOperationsPending = static_cast( mImpl->mOperationsPending | sizeOperations ); + case LayoutEngine::HORIZONTAL_ALIGN_BEGIN: + { + mImpl->mAlignmentOffset.x = 0.f; + break; + } + case LayoutEngine::HORIZONTAL_ALIGN_CENTER: + { + const int intOffset = static_cast( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment. + mImpl->mAlignmentOffset.x = static_cast( intOffset ); + break; + } + case LayoutEngine::HORIZONTAL_ALIGN_END: + { + mImpl->mAlignmentOffset.x = size.width - actualSize.width; + break; + } } - else + + const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment(); + switch( verticalAlignment ) { - layoutSize = mImpl->mVisualModel->GetActualSize(); + case LayoutEngine::VERTICAL_ALIGN_TOP: + { + mImpl->mAlignmentOffset.y = 0.f; + break; + } + case LayoutEngine::VERTICAL_ALIGN_CENTER: + { + const int intOffset = static_cast( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment. + mImpl->mAlignmentOffset.y = static_cast( intOffset ); + break; + } + case LayoutEngine::VERTICAL_ALIGN_BOTTOM: + { + mImpl->mAlignmentOffset.y = size.height - actualSize.height; + break; + } } - - return layoutSize.height; -} - -View& Controller::GetView() -{ - return mImpl->mView; } LayoutEngine& Controller::GetLayoutEngine() @@ -1081,92 +935,307 @@ LayoutEngine& Controller::GetLayoutEngine() return mImpl->mLayoutEngine; } -void Controller::RequestRelayout() +View& Controller::GetView() { - mImpl->mControlInterface.RequestTextRelayout(); + return mImpl->mView; } void Controller::KeyboardFocusGainEvent() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusGainEvent" ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" ); - if( mImpl->mTextInput ) + if( mImpl->mEventData ) { - TextInput::Event event( TextInput::KEYBOARD_FOCUS_GAIN_EVENT ); - mImpl->mTextInput->mEventQueue.push_back( event ); + Event event( Event::KEYBOARD_FOCUS_GAIN_EVENT ); + mImpl->mEventData->mEventQueue.push_back( event ); - RequestRelayout(); + mImpl->RequestRelayout(); } } void Controller::KeyboardFocusLostEvent() { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusLostEvent" ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" ); - if( mImpl->mTextInput ) + if( mImpl->mEventData ) { - TextInput::Event event( TextInput::KEYBOARD_FOCUS_LOST_EVENT ); - mImpl->mTextInput->mEventQueue.push_back( event ); + Event event( Event::KEYBOARD_FOCUS_LOST_EVENT ); + mImpl->mEventData->mEventQueue.push_back( event ); - RequestRelayout(); + mImpl->RequestRelayout(); } } bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent ) { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyEvent" ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" ); - if( mImpl->mTextInput ) + if( mImpl->mEventData && + keyEvent.state == KeyEvent::Down ) { - TextInput::Event event( TextInput::KEY_EVENT ); - event.p1.mInt = keyEvent.keyCode; - event.p2.mString = NULL; - + int keyCode = keyEvent.keyCode; const std::string& keyString = keyEvent.keyPressed; - if ( !keyString.empty() ) + + // Pre-process to separate modifying events from non-modifying input events. + if( Dali::DALI_KEY_ESCAPE == keyCode ) { - event.p2.mString = new char[keyString.size() + 1]; - std::copy(keyString.begin(), keyString.end(), event.p2.mString); - event.p2.mString[keyString.size()] = '\0'; + // 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 ) + { + // Remove the character before the current cursor position + bool removed = RemoveText( -1, 1 ); - mImpl->mTextInput->mEventQueue.push_back( event ); + if( removed ) + { + if( 0u == mImpl->mLogicalModel->mText.Count() ) + { + ShowPlaceholderText(); + mImpl->mEventData->mUpdateCursorPosition = true; + } + else + { + mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED ); + } + } + } + else + { + InsertText( keyString, COMMIT ); + } + + mImpl->ChangeState( EventData::EDITING ); // todo Confirm this is the best place to change the state of - RequestRelayout(); + mImpl->RequestRelayout(); } return false; } +void Controller::InsertText( const std::string& text, Controller::InsertType type ) +{ + bool removedPreEdit( false ); + bool maxLengthReached( false ); + + DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" ) + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPreEditFlag %d cursor %d\n", + this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"), mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPrimaryCursorPosition ); + + if( ! text.empty() ) + { + if( mImpl->IsShowingPlaceholderText() ) + { + ResetText(); + } + } + + if( mImpl->mEventData ) + { + if( COMMIT == type ) + { + mImpl->mEventData->mPreEditFlag = false; + } + else // PRE_EDIT + { + if( mImpl->mEventData->mPreEditFlag && + 0 != mImpl->mEventData->mPreEditLength ) + { + // Remove previous pre-edit text + mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition; + removedPreEdit = RemoveText( -1, mImpl->mEventData->mPreEditLength ); + } + else + { + // Record the start of the pre-edit text + mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition; + mImpl->mEventData->mPreEditLength = text.size(); + + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength ); + } + + mImpl->mEventData->mPreEditFlag = true; + } + } + + if( ! text.empty() ) + { + // Convert text into UTF-32 + Vector utf32Characters; + 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 ); + + 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() ); + + const Length numberOfCharactersInModel = mImpl->mLogicalModel->GetNumberOfCharacters(); + + // Restrict new text to fit within Maximum characters setting + Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount ); + maxLengthReached = ( characterCount > maxSizeOfNewText ); + + // Insert at current cursor position + CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition; + + 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 ); + } + + 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 ); + } + + if( removedPreEdit || !text.empty() ) + { + // Queue an inserted event + mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED ); + } + + if( maxLengthReached ) + { + DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() ); + + mImpl->mControlInterface.MaxLengthReached(); + + mImpl->PreEditReset(); + } +} + void Controller::TapEvent( unsigned int tapCount, float x, float y ) { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected TapEvent" ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" ); + + if( NULL != mImpl->mEventData ) + { + if( 1u == tapCount ) + { + bool tapDuringEditMode( EventData::EDITING == mImpl->mEventData->mState ); + + mImpl->ChangeState( EventData::EDITING ); + + if( mImpl->IsShowingPlaceholderText() ) + { + // Alternative placeholder-text is used when editing + ShowPlaceholderText(); + } + else if( EventData::EDITING == mImpl->mEventData->mState ) + { + // Grab handle is not shown until a tap is received whilst EDITING + if( tapDuringEditMode ) + { + mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true ); + } + mImpl->mEventData->mDecorator->SetPopupActive( false ); + } + } + else if( mImpl->mEventData->mSelectionEnabled && + ( 2u == tapCount ) ) + { + mImpl->ChangeState( EventData::SELECTING ); + } + } - if( mImpl->mTextInput ) + // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated + if( mImpl->mEventData ) { - TextInput::Event event( TextInput::TAP_EVENT ); + Event event( Event::TAP_EVENT ); event.p1.mUint = tapCount; event.p2.mFloat = x; event.p3.mFloat = y; - mImpl->mTextInput->mEventQueue.push_back( event ); + mImpl->mEventData->mEventQueue.push_back( event ); - RequestRelayout(); + mImpl->RequestRelayout(); } + + // Reset keyboard as tap event has occurred. + mImpl->PreEditReset(); } -void Controller::GrabHandleEvent( GrabHandleState state, float x, float y ) +void Controller::PanEvent( Gesture::State state, const Vector2& displacement ) { - DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected GrabHandleEvent" ); + DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" ); - if( mImpl->mTextInput ) + if( 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 ); + 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::HandleEvent( HandleType handleType, HandleState state, float x, float y ) +{ + DALI_ASSERT_DEBUG( mImpl->mEventData && "Controller::HandleEvent. Unexpected HandleEvent" ); + + if( 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; - RequestRelayout(); + 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 HANDLE_TYPE_COUNT: + { + DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" ); + } + } + + mImpl->RequestRelayout(); } } @@ -1175,6 +1244,103 @@ Controller::~Controller() delete mImpl; } +void Controller::ShowPlaceholderText() +{ + if( mImpl->IsPlaceholderAvailable() ) + { + DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" ); + + mImpl->mEventData->mIsShowingPlaceholderText = true; + + // Cancel previously queued inserts etc. + mImpl->mModifyEvents.clear(); + + // 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(); + } + + // Reset model for showing placeholder. + mImpl->mLogicalModel->mText.Clear(); + ClearModelData(); + mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor ); + + // Convert text into UTF-32 + Vector& utf32Characters = mImpl->mLogicalModel->mText; + utf32Characters.Resize( size ); + + // 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. + Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() ); + utf32Characters.Resize( 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; + mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED ); + } +} + +void Controller::ClearModelData() +{ + // n.b. This does not Clear the mText from mLogicalModel + 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(); + mImpl->mVisualModel->ClearCaches(); +} + +void Controller::ClearFontData() +{ + mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + mImpl->mLogicalModel->mFontRuns.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(); + mImpl->mVisualModel->ClearCaches(); +} + Controller::Controller( ControlInterface& controlInterface ) : mImpl( NULL ) {