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=591dbaffaa2406c17711f80137cdb3a521ff3b95;hp=f12ba5bf090bffeae9853cd07ca7866fb1928f39;hb=e3eaed5c8d335c82c5cbd983cb3a6ea6abe0fb53;hpb=c6b64a162088c12ef1b69aa40234e6d4dd772763 diff --git a/dali-toolkit/internal/text/text-controller.cpp b/dali-toolkit/internal/text/text-controller.cpp index f12ba5b..591dbaf 100644 --- a/dali-toolkit/internal/text/text-controller.cpp +++ b/dali-toolkit/internal/text/text-controller.cpp @@ -18,24 +18,49 @@ // CLASS HEADER #include +// EXTERNAL INCLUDES +#include +#include +#include +#include + // INTERNAL INCLUDES +#include #include #include -#include +#include +#include #include #include #include #include +#include #include -#include - -// EXTERNAL INCLUDES -#include -#include -#include +#include using std::vector; +namespace +{ + +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 +}; + +struct ModifyEvent +{ + ModifyType type; + std::string text; +}; + +} // namespace + namespace Dali { @@ -45,6 +70,31 @@ namespace Toolkit namespace Text { +struct Controller::FontDefaults +{ + FontDefaults() + : mDefaultPointSize(0.0f), + mFontId(0u) + { + } + + FontId GetFontId( TextAbstraction::FontClient& fontClient ) + { + if( !mFontId ) + { + Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64; + mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize ); + } + + return mFontId; + } + + std::string mDefaultFontFamily; + std::string mDefaultFontStyle; + float mDefaultPointSize; + FontId mFontId; +}; + struct Controller::TextInput { // Used to queue input events until DoRelayout() @@ -52,7 +102,9 @@ struct Controller::TextInput { KEYBOARD_FOCUS_GAIN_EVENT, KEYBOARD_FOCUS_LOST_EVENT, + CURSOR_KEY_EVENT, TAP_EVENT, + PAN_EVENT, GRAB_HANDLE_EVENT }; @@ -82,7 +134,8 @@ struct Controller::TextInput { INACTIVE, SELECTING, - EDITING + EDITING, + EDITING_WITH_POPUP }; TextInput( LogicalModelPtr logicalModel, @@ -91,14 +144,25 @@ struct Controller::TextInput : mLogicalModel( logicalModel ), mVisualModel( visualModel ), mDecorator( decorator ), - mState( INACTIVE ) + mState( INACTIVE ), + mPrimaryCursorPosition( 0u ), + mSecondaryCursorPosition( 0u ), + mDecoratorUpdated( false ), + mCursorBlinkEnabled( true ), + mGrabHandleEnabled( true ), + mGrabHandlePopupEnabled( true ), + mSelectionEnabled( true ), + mHorizontalScrollingEnabled( true ), + mVerticalScrollingEnabled( false ), + mUpdateCursorPosition( false ) { } /** * @brief Helper to move the cursor, grab handle etc. */ - bool ProcessTouchEvents() + bool ProcessInputEvents( const Vector2& controlSize, + const Vector2& alignmentOffset ) { mDecoratorUpdated = false; @@ -118,9 +182,19 @@ struct Controller::TextInput OnKeyboardFocus( false ); break; } + case CURSOR_KEY_EVENT: + { + OnCursorKeyEvent( *iter ); + break; + } case TAP_EVENT: { - OnTapEvent( *iter ); + OnTapEvent( *iter, alignmentOffset ); + break; + } + case PAN_EVENT: + { + OnPanEvent( *iter, controlSize, alignmentOffset ); break; } case GRAB_HANDLE_EVENT: @@ -132,6 +206,13 @@ struct Controller::TextInput } } + // The cursor must also be repositioned after inserts into the model + if( mUpdateCursorPosition ) + { + UpdateCursorPosition(); + mUpdateCursorPosition = false; + } + mEventQueue.clear(); return mDecoratorUpdated; @@ -139,32 +220,121 @@ struct Controller::TextInput void OnKeyboardFocus( bool hasFocus ) { + if( !hasFocus ) + { + ChangeState( INACTIVE ); + } + else + { + ChangeState( EDITING ); + } + } + + void OnCursorKeyEvent( const Event& event ) + { + 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 + } + } + + void HandleCursorKey( int keyCode ) + { // TODO } - void OnTapEvent( const Event& event ) + void OnTapEvent( const Event& event, + const Vector2& alignmentOffset ) { - if( 1u == event.p1.mUint ) + unsigned int tapCount = event.p1.mUint; + + if( 1u == tapCount ) { - mState = TextInput::EDITING; - mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); - mDecorator->StartCursorBlink(); - mDecorator->SetGrabHandleActive( true ); + ChangeState( EDITING ); - float xPosition = event.p2.mFloat; - float yPosition = event.p3.mFloat; + float xPosition = event.p2.mFloat - alignmentOffset.x; + float yPosition = event.p3.mFloat - alignmentOffset.y; float height(0.0f); - GetClosestCursorPosition( xPosition, yPosition, height ); - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); + GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height ); + mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height, height ); // TODO: To be fixed in the next patch. + mUpdateCursorPosition = false; mDecoratorUpdated = true; } - else if( 2u == event.p1.mUint ) + else if( mSelectionEnabled && + 2u == tapCount ) { - mState = TextInput::SELECTING; - mDecorator->SetGrabHandleActive( false ); - mDecorator->SetSelectionActive( true ); - mDecoratorUpdated = true; + ChangeState( SELECTING ); + + RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat ); + } + } + + void OnPanEvent( const Event& event, + const Vector2& controlSize, + const Vector2& alignmentOffset ) + { + int state = event.p1.mInt; + + if( Gesture::Started == state || + Gesture::Continuing == state ) + { + const Vector2& actualSize = mVisualModel->GetActualSize(); + + if( mHorizontalScrollingEnabled ) + { + const float displacementX = event.p2.mFloat; + mScrollPosition.x += displacementX; + + // Clamp between -space & 0 (and the text alignment). + const float contentWidth = actualSize.width; + if( contentWidth > controlSize.width ) + { + const float space = ( contentWidth - controlSize.width ) + alignmentOffset.x; + mScrollPosition.x = ( mScrollPosition.x < -space ) ? -space : mScrollPosition.x; + mScrollPosition.x = ( mScrollPosition.x > -alignmentOffset.x ) ? -alignmentOffset.x : mScrollPosition.x; + + mDecoratorUpdated = true; + } + else + { + mScrollPosition.x = 0.f; + } + } + + if( mVerticalScrollingEnabled ) + { + const float displacementY = event.p3.mFloat; + mScrollPosition.y += displacementY; + + // Clamp between -space & 0 (and the text alignment). + if( actualSize.height > controlSize.height ) + { + const float space = ( actualSize.height - controlSize.height ) + alignmentOffset.y; + mScrollPosition.y = ( mScrollPosition.y < -space ) ? -space : mScrollPosition.y; + mScrollPosition.y = ( mScrollPosition.y > -alignmentOffset.y ) ? -alignmentOffset.y : mScrollPosition.y; + + mDecoratorUpdated = true; + } + else + { + mScrollPosition.y = 0.f; + } + } } } @@ -178,62 +348,260 @@ struct Controller::TextInput float yPosition = event.p3.mFloat; float height(0.0f); - GetClosestCursorPosition( xPosition, yPosition, height ); + GetClosestCursorPosition( mPrimaryCursorPosition, xPosition, yPosition, height ); - mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height ); + mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height, height ); // TODO: To be fixed in the next patch. + + //mDecorator->HidePopup(); + ChangeState ( EDITING ); + mDecoratorUpdated = true; + } + else if ( mGrabHandlePopupEnabled && + GRAB_HANDLE_RELEASED == state ) + { + //mDecorator->ShowPopup(); + ChangeState ( EDITING_WITH_POPUP ); mDecoratorUpdated = true; } } - void GetClosestCursorPosition( float& x, float& y, float& height ) + void RepositionSelectionHandles( float visualX, float visualY ) { - // TODO - Look at LineRuns first + // TODO - Find which word was selected + + const Vector& glyphs = mVisualModel->mGlyphs; + const Vector::SizeType glyphCount = glyphs.Count(); + + const Vector& positions = mVisualModel->mGlyphPositions; + const Vector::SizeType positionCount = positions.Count(); + + // Guard against glyphs which did not fit inside the layout + const Vector::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount; - Text::Length numberOfGlyphs = mVisualModel->GetNumberOfGlyphs(); - if( 0 == numberOfGlyphs ) + if( count ) + { + float primaryX = positions[0].x; + float secondaryX = positions[count-1].x + glyphs[count-1].width; + + // TODO - multi-line selection + const Vector& lines = mVisualModel->mLines; + float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f; + + mDecorator->SetPosition( PRIMARY_SELECTION_HANDLE, primaryX, 0.0f, height ); + mDecorator->SetPosition( SECONDARY_SELECTION_HANDLE, secondaryX, 0.0f, height ); + + mDecorator->ClearHighlights(); + mDecorator->AddHighlight( primaryX, 0.0f, secondaryX, height ); + } + } + + void ChangeState( State newState ) + { + if( mState != newState ) + { + mState = newState; + + if( INACTIVE == mState ) + { + mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE ); + mDecorator->StopCursorBlink(); + mDecorator->SetGrabHandleActive( false ); + mDecorator->SetSelectionActive( false ); + mDecorator->SetPopupActive( false ); + 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 ); + } + if( mGrabHandlePopupEnabled ) + { + mDecorator->SetPopupActive( false ); + } + mDecorator->SetSelectionActive( false ); + mDecoratorUpdated = true; + } + else if( EDITING_WITH_POPUP == mState ) + { + mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY ); + if( mCursorBlinkEnabled ) + { + mDecorator->StartCursorBlink(); + } + if( mGrabHandleEnabled ) + { + mDecorator->SetGrabHandleActive( true ); + } + if( mGrabHandlePopupEnabled ) + { + mDecorator->SetPopupActive( true ); + } + mDecorator->SetSelectionActive( false ); + mDecoratorUpdated = true; + } + } + } + + LineIndex GetClosestLine( float y ) + { + LineIndex lineIndex( 0u ); + + const Vector& lines = mVisualModel->mLines; + for( float totalHeight = 0; lineIndex < lines.Count(); ++lineIndex ) + { + const LineRun& lineRun = lines[lineIndex]; + totalHeight += lineRun.ascender + -lineRun.descender; + if( y < totalHeight ) + { + return lineIndex; + } + } + + return lineIndex-1; + } + + void GetClosestCursorPosition( CharacterIndex& logical, float& visualX, float& visualY, float& height ) + { + Length numberOfGlyphs = mVisualModel->mGlyphs.Count(); + Length numberOfLines = mVisualModel->mLines.Count(); + if( 0 == numberOfGlyphs || + 0 == numberOfLines ) { return; } - Vector glyphs; - glyphs.Resize( numberOfGlyphs ); - mVisualModel->GetGlyphs( &glyphs[0], 0, numberOfGlyphs ); + // Transform to visual model coords + visualX -= mScrollPosition.x; + visualY -= mScrollPosition.y; + + // Find which line is closest + LineIndex lineIndex( GetClosestLine( visualY ) ); - std::vector positions; - positions.resize( numberOfGlyphs ); - mVisualModel->GetGlyphPositions( &positions[0], 0, numberOfGlyphs ); + const Vector& glyphs = mVisualModel->mGlyphs; + const GlyphInfo* const glyphsBuffer = glyphs.Begin(); + + const Vector& positions = mVisualModel->mGlyphPositions; + const Vector2* const positionsBuffer = positions.Begin(); unsigned int closestGlyph = 0; - float closestDistance = std::numeric_limits::max(); + bool leftOfGlyph( false ); // which side of the glyph? + float closestDistance = MAX_FLOAT; + + 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" ); - for( unsigned int i=0; iGetCharacterIndex( closestGlyph ); - FontMetrics metrics; - TextAbstraction::FontClient::Get().GetFontMetrics( glyphs[closestGlyph].fontId, metrics ); - height = metrics.height; // TODO - Fix for multi-line + // Returns the visual position of the glyph + visualX = positions[closestGlyph].x; + if( !leftOfGlyph ) + { + visualX += glyphs[closestGlyph].width; + + //if( LTR ) TODO + ++logical; + } + else// if ( RTL ) TODO + { + //++logical; + } + visualY = 0.0f; + + height = line.ascender + -line.descender; + } + + void UpdateCursorPosition() + { + if( 0 == mVisualModel->mGlyphs.Count() ) + { + return; + } + + // 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 + + float visualX( 0.0f ); + float visualY( 0.0f ); + float height( 0.0f ); + const Vector& lineRuns = mVisualModel->mLines; + + if( cursorGlyph > 0 ) + { + --cursorGlyph; + + visualX = mVisualModel->mGlyphPositions[ cursorGlyph ].x; + //if( LTR ) TODO + visualX += mVisualModel->mGlyphs[ cursorGlyph ].width; + + // Find the line height + GlyphIndex lastGlyph( 0 ); + for( LineIndex lineIndex = 0u; lineIndex < lineRuns.Count(); ++lineIndex ) + { + lastGlyph = (lineRuns[lineIndex].glyphIndex + lineRuns[lineIndex].numberOfGlyphs); + if( cursorGlyph < lastGlyph ) + { + const LineRun& lineRun = lineRuns[lineIndex]; + height = lineRun.ascender + -lineRun.descender; + break; + } + } + } + + mDecorator->SetPosition( PRIMARY_CURSOR, visualX, visualY, height, height ); // TODO: To be fixed in the next patch. + mDecoratorUpdated = true; } LogicalModelPtr mLogicalModel; VisualModelPtr mVisualModel; DecoratorPtr mDecorator; - State mState; + std::string mPlaceholderText; /** * This is used to delay handling events until after the model has been updated. @@ -241,24 +609,56 @@ struct Controller::TextInput */ vector mEventQueue; ///< The queue of touch events etc. - bool mDecoratorUpdated; + State mState; ///< Selection mode, edit mode etc. + + CharacterIndex mPrimaryCursorPosition; ///< Index into logical model for primary cursor + CharacterIndex mSecondaryCursorPosition; ///< Index into logical model for secondary cursor + + /** + * 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. + + 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 }; struct Controller::Impl { Impl( ControlInterface& controlInterface ) : mControlInterface( controlInterface ), - mNewText(), - mOperations( NO_OPERATION ), + mLogicalModel(), + mVisualModel(), + mFontDefaults( NULL ), + mTextInput( NULL ), + mFontClient(), + mView(), + mLayoutEngine(), + mModifyEvents(), mControlSize(), - mTextInput( NULL ) + mAlignmentOffset(), + mOperationsPending( NO_OPERATION ), + mRecalculateNaturalSize( true ) { mLogicalModel = LogicalModel::New(); mVisualModel = VisualModel::New(); + mFontClient = TextAbstraction::FontClient::Get(); + mView.SetVisualModel( mVisualModel ); - mFontClient = TextAbstraction::FontClient::Get(); + // Set the text properties to default + mVisualModel->SetTextColor( Color::WHITE ); + mVisualModel->SetShadowOffset( Vector2::ZERO ); + mVisualModel->SetShadowColor( Vector4::ZERO ); + mVisualModel->SetUnderlineEnabled( false ); } ~Impl() @@ -266,25 +666,19 @@ struct Controller::Impl delete mTextInput; } - ControlInterface& mControlInterface; - - std::string mNewText; - - LogicalModelPtr mLogicalModel; - VisualModelPtr mVisualModel; - - View mView; - - LayoutEngine mLayoutEngine; - - TextAbstraction::FontClient mFontClient; - - OperationsMask mOperations; - - Size mControlSize; - - // Avoid allocating everything for text input until EnableTextInput() - Controller::TextInput* mTextInput; + 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. + Vector2 mAlignmentOffset; ///< Vertical and horizontal offset of the whole text inside the control due to alignment. + 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 ) @@ -294,9 +688,14 @@ ControllerPtr Controller::New( ControlInterface& controlInterface ) void Controller::SetText( const std::string& text ) { + // Cancel previously queued inserts etc. + mImpl->mModifyEvents.clear(); + // Keep until size negotiation - mImpl->mNewText = text; - mImpl->mOperations = ALL_OPERATIONS; + ModifyEvent event; + event.type = REPLACE_TEXT; + event.text = text; + mImpl->mModifyEvents.push_back( event ); if( mImpl->mTextInput ) { @@ -307,11 +706,12 @@ void Controller::SetText( const std::string& text ) } } -void Controller::GetText( std::string& text ) +void Controller::GetText( std::string& text ) const { - if( !mImpl->mNewText.empty() ) + if( !mImpl->mModifyEvents.empty() && + REPLACE_TEXT == mImpl->mModifyEvents[0].type ) { - text = mImpl->mNewText; + text = mImpl->mModifyEvents[0].text; } else { @@ -319,6 +719,191 @@ void Controller::GetText( std::string& text ) } } +void Controller::SetPlaceholderText( const std::string& text ) +{ + if( !mImpl->mTextInput ) + { + mImpl->mTextInput->mPlaceholderText = text; + } +} + +void Controller::GetPlaceholderText( std::string& text ) const +{ + if( !mImpl->mTextInput ) + { + text = mImpl->mTextInput->mPlaceholderText; + } +} + +void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily ) +{ + if( !mImpl->mFontDefaults ) + { + mImpl->mFontDefaults = new Controller::FontDefaults(); + } + + mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily; + mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->mRecalculateNaturalSize = true; + + // Clear the font-specific data + 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(); + + RequestRelayout(); +} + +const std::string& Controller::GetDefaultFontFamily() const +{ + if( mImpl->mFontDefaults ) + { + return mImpl->mFontDefaults->mDefaultFontFamily; + } + + return EMPTY_STRING; +} + +void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle ) +{ + if( !mImpl->mFontDefaults ) + { + mImpl->mFontDefaults = new Controller::FontDefaults(); + } + + mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle; + mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->mRecalculateNaturalSize = true; + + // Clear the font-specific data + 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(); + + RequestRelayout(); +} + +const std::string& Controller::GetDefaultFontStyle() const +{ + if( mImpl->mFontDefaults ) + { + return mImpl->mFontDefaults->mDefaultFontStyle; + } + + return EMPTY_STRING; +} + +void Controller::SetDefaultPointSize( float pointSize ) +{ + if( !mImpl->mFontDefaults ) + { + mImpl->mFontDefaults = new Controller::FontDefaults(); + } + + mImpl->mFontDefaults->mDefaultPointSize = pointSize; + mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID + mImpl->mOperationsPending = ALL_OPERATIONS; + mImpl->mRecalculateNaturalSize = true; + + // Clear the font-specific data + 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(); + + RequestRelayout(); +} + +float Controller::GetDefaultPointSize() const +{ + if( mImpl->mFontDefaults ) + { + return mImpl->mFontDefaults->mDefaultPointSize; + } + + return 0.0f; +} + +void Controller::GetDefaultFonts( Vector& fonts, Length numberOfCharacters ) +{ + if( mImpl->mFontDefaults ) + { + FontRun fontRun; + fontRun.characterRun.characterIndex = 0; + fontRun.characterRun.numberOfCharacters = numberOfCharacters; + fontRun.fontId = mImpl->mFontDefaults->GetFontId( mImpl->mFontClient ); + fontRun.isDefault = true; + + fonts.PushBack( fontRun ); + } +} + +const Vector4& Controller::GetTextColor() const +{ + return mImpl->mVisualModel->GetTextColor(); +} + +const Vector2& Controller::GetShadowOffset() const +{ + return mImpl->mVisualModel->GetShadowOffset(); +} + +const Vector4& Controller::GetShadowColor() const +{ + return mImpl->mVisualModel->GetShadowColor(); +} + +const Vector4& Controller::GetUnderlineColor() const +{ + return mImpl->mVisualModel->GetUnderlineColor(); +} + +bool Controller::IsUnderlineEnabled() const +{ + return mImpl->mVisualModel->IsUnderlineEnabled(); +} + +void Controller::SetTextColor( const Vector4& textColor ) +{ + mImpl->mVisualModel->SetTextColor( textColor ); +} + +void Controller::SetShadowOffset( const Vector2& shadowOffset ) +{ + mImpl->mVisualModel->SetShadowOffset( shadowOffset ); +} + +void Controller::SetShadowColor( const Vector4& shadowColor ) +{ + mImpl->mVisualModel->SetShadowColor( shadowColor ); +} + +void Controller::SetUnderlineColor( const Vector4& color ) +{ + mImpl->mVisualModel->SetUnderlineColor( color ); +} + +void Controller::SetUnderlineEnabled( bool enabled ) +{ + mImpl->mVisualModel->SetUnderlineEnabled( enabled ); +} + void Controller::EnableTextInput( DecoratorPtr decorator ) { if( !mImpl->mTextInput ) @@ -327,83 +912,425 @@ void Controller::EnableTextInput( DecoratorPtr decorator ) } } -bool Controller::Relayout( const Vector2& size ) +void Controller::SetEnableCursorBlink( bool enable ) +{ + DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "TextInput disabled" ); + + if( mImpl->mTextInput ) + { + mImpl->mTextInput->mCursorBlinkEnabled = enable; + + if( !enable && + mImpl->mTextInput->mDecorator ) + { + mImpl->mTextInput->mDecorator->StopCursorBlink(); + } + } +} + +bool Controller::GetEnableCursorBlink() const +{ + if( mImpl->mTextInput ) + { + return mImpl->mTextInput->mCursorBlinkEnabled; + } + + return false; +} + +const Vector2& Controller::GetScrollPosition() const +{ + if( mImpl->mTextInput ) + { + return mImpl->mTextInput->mScrollPosition; + } + + return Vector2::ZERO; +} + +const Vector2& Controller::GetAlignmentOffset() const +{ + return mImpl->mAlignmentOffset; +} + +Vector3 Controller::GetNaturalSize() +{ + 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 + UpdateModel( onlyOnceOperations ); + + // Operations that need to be done if the size changes. + const OperationsMask sizeOperations = static_cast( LAYOUT | + ALIGN | + REORDER ); + + 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; + } + else + { + naturalSize = mImpl->mVisualModel->GetNaturalSize(); + } + + return naturalSize; +} + +float Controller::GetHeightForWidth( float width ) +{ + // Make sure the model is up-to-date before layouting + ProcessModifyEvents(); + + 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 ); + + // 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 ); + } + else + { + layoutSize = mImpl->mVisualModel->GetActualSize(); + } + + return layoutSize.height; +} + +bool Controller::Relayout( const Size& size ) { if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) ) { + 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 false; + return glyphsRemoved; } - bool updated = false; - if( size != mImpl->mControlSize ) { - updated = DoRelayout( size, mImpl->mOperations ); - - // Do not re-do any operation until something changes. - mImpl->mOperations = NO_OPERATION; + // 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; } + // Make sure the model is up-to-date before layouting + ProcessModifyEvents(); + 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->mTextInput ) { // Move the cursor, grab handle etc. - updated = mImpl->mTextInput->ProcessTouchEvents() || updated; + updated = mImpl->mTextInput->ProcessInputEvents( mImpl->mControlSize, mImpl->mAlignmentOffset ) || updated; } return updated; } -bool Controller::DoRelayout( const Vector2& size, OperationsMask operations ) +void Controller::ProcessModifyEvents() { - bool viewUpdated( false ); + std::vector& events = mImpl->mModifyEvents; + + for( unsigned int i=0; imLogicalModel->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 ) + { + mImpl->mTextInput->mPrimaryCursorPosition = characterCount; + // TODO - handle secondary cursor + } + + // 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; - Length characterCount = 0u; - if( CONVERT_TO_UTF32 & operations ) + 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 ); + + // Insert at current cursor position + Vector& modifyText = mImpl->mLogicalModel->mText; + CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition; + + if( cursorIndex < modifyText.Count() ) { - std::string& text = mImpl->mNewText; + modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.End() ); + } + else + { + modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.End() ); + } - // Convert text into UTF-32 - utf32Characters.Resize( text.size() ); + // Advance the cursor position + ++cursorIndex; - // This is a bit horrible but std::string returns a (signed) char* - const uint8_t* utf8 = reinterpret_cast( text.c_str() ); + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; - // 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 ); + // 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 ); - // Sets the text into the model. - mImpl->mLogicalModel->SetText( utf32Characters.Begin(), characterCount ); + // Queue a cursor reposition event; this must wait until after DoRelayout() + mImpl->mTextInput->mUpdateCursorPosition = true; +} + +void Controller::DeleteTextEvent() +{ + 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(); + + // Delte at current cursor position + Vector& modifyText = mImpl->mLogicalModel->mText; + CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition; + + if( cursorIndex > 0 && + cursorIndex-1 < modifyText.Count() ) + { + modifyText.Remove( modifyText.Begin() + cursorIndex - 1 ); - // Discard temporary text - text.clear(); + // Cursor position retreat + --cursorIndex; } - Vector lineBreakInfo; + // The natural size needs to be re-calculated. + mImpl->mRecalculateNaturalSize = true; + + // 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 ); + + // Queue a cursor reposition event; this must wait until after DoRelayout() + mImpl->mTextInput->mUpdateCursorPosition = true; +} + +void Controller::UpdateModel( OperationsMask operationsRequired ) +{ + // Calculate the operations to be done. + const OperationsMask operations = static_cast( mImpl->mOperationsPending & operationsRequired ); + + Vector& utf32Characters = mImpl->mLogicalModel->mText; + + const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters(); + + Vector& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo; if( GET_LINE_BREAKS & operations ) { // Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to // calculate the bidirectional info for each 'paragraph'. // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines // is not shaped together). - lineBreakInfo.Resize( characterCount, TextAbstraction::LINE_NO_BREAK ); + lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK ); SetLineBreakInfo( utf32Characters, lineBreakInfo ); + } + + 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 ); - mImpl->mLogicalModel->SetLineBreakInfo( lineBreakInfo.Begin(), characterCount ); + SetWordBreakInfo( utf32Characters, + wordBreakInfo ); } const bool getScripts = GET_SCRIPTS & operations; const bool validateFonts = VALIDATE_FONTS & operations; - Vector scripts; - Vector fonts; + Vector& scripts = mImpl->mLogicalModel->mScriptRuns; + Vector& validFonts = mImpl->mLogicalModel->mFontRuns; + if( getScripts || validateFonts ) { // Validates the fonts assigned by the application or assigns default ones. @@ -416,138 +1343,294 @@ bool Controller::DoRelayout( const Vector2& size, OperationsMask operations ) multilanguageSupport.SetScripts( utf32Characters, lineBreakInfo, scripts ); - - // Sets the scripts into the model. - mImpl->mLogicalModel->SetScripts( scripts.Begin(), scripts.Count() ); } if( validateFonts ) { + if( 0u == validFonts.Count() ) + { + // Copy the requested font defaults received via the property system. + // These may not be valid i.e. may not contain glyphs for the necessary scripts. + GetDefaultFonts( validFonts, numberOfCharacters ); + } + // 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, - fonts ); - - // Sets the fonts into the model. - mImpl->mLogicalModel->SetFonts( fonts.Begin(), fonts.Count() ); + validFonts ); } } - Vector glyphs; - Vector characterIndices; - Vector charactersPerGlyph; + 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. + + Length numberOfParagraphs = 0u; + + const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin(); + for( Length index = 0u; index < numberOfCharacters; ++index ) + { + if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) ) + { + ++numberOfParagraphs; + } + } + + Vector& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo; + bidirectionalInfo.Reserve( numberOfParagraphs ); + + // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts. + SetBidirectionalInfo( utf32Characters, + scripts, + lineBreakInfo, + bidirectionalInfo ); + + if( 0u != bidirectionalInfo.Count() ) + { + // This paragraph has right to left text. Some characters may need to be mirrored. + // TODO: consider if the mirrored string can be stored as well. + + textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters ); + + // Only set the character directions if there is right to left characters. + Vector& directions = mImpl->mLogicalModel->mCharacterDirections; + directions.Resize( numberOfCharacters ); + + GetCharactersDirection( bidirectionalInfo, + directions ); + } + else + { + // There is no right to left characters. Clear the directions vector. + mImpl->mLogicalModel->mCharacterDirections.Clear(); + } + + } + + 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( utf32Characters, + ShapeText( textToShape, lineBreakInfo, scripts, - fonts, + validFonts, glyphs, - characterIndices, + glyphsToCharactersMap, charactersPerGlyph ); + + // Create the 'number of glyphs' per character and the glyph to character conversion tables. + mImpl->mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters ); + mImpl->mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters ); } + const Length numberOfGlyphs = glyphs.Count(); + if( GET_GLYPH_METRICS & operations ) { - mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), glyphs.Count() ); + mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs ); } +} + +bool Controller::DoRelayout( const Size& size, + OperationsMask operationsRequired, + Size& layoutSize ) +{ + bool viewUpdated( false ); + + // Calculate the operations to be done. + const OperationsMask operations = static_cast( mImpl->mOperationsPending & operationsRequired ); if( LAYOUT & operations ) { - if( 0u == glyphs.Count() ) + // 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(); + + 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; + + // Set the layout parameters. + LayoutParameters layoutParameters( size, + mImpl->mLogicalModel->mText.Begin(), + lineBreakInfo.Begin(), + wordBreakInfo.Begin(), + numberOfGlyphs, + 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() ); + + // 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, + glyphPositions, + lines, + layoutSize ); + + if( viewUpdated ) { - const Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs(); - - glyphs.Resize( numberOfGlyphs ); - characterIndices.Resize( numberOfGlyphs ); - charactersPerGlyph.Resize( numberOfGlyphs ); - - mImpl->mVisualModel->GetGlyphs( glyphs.Begin(), - 0u, - numberOfGlyphs ); + // Reorder the lines + if( REORDER & operations ) + { + Vector& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo; - mImpl->mVisualModel->GetGlyphToCharacterMap( characterIndices.Begin(), - 0u, - numberOfGlyphs ); + // Check first if there are paragraphs with bidirectional info. + if( 0u != bidirectionalInfo.Count() ) + { + // Get the lines + const Length numberOfLines = mImpl->mVisualModel->GetNumberOfLines(); + + // Reorder the lines. + Vector lineBidirectionalInfoRuns; + lineBidirectionalInfoRuns.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 ); + + // 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(); + + // Re-layout the text. Reorder those lines with right to left characters. + mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters, + 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 ) + { + BidirectionalLineInfoRun& bidiLineInfo = *it; - mImpl->mVisualModel->GetCharactersPerGlyphMap( charactersPerGlyph.Begin(), - 0u, - numberOfGlyphs ); - } + free( bidiLineInfo.visualToLogicalMap ); + } + } + } // REORDER - // Update the visual model - mImpl->mLayoutEngine.UpdateVisualModel( size, - glyphs, - characterIndices, - charactersPerGlyph, - *mImpl->mVisualModel ); + if( ALIGN & operations ) + { + mImpl->mLayoutEngine.Align( layoutParameters, + layoutSize, + lines, + glyphPositions ); + } - viewUpdated = true; + // Sets the actual size. + if( UPDATE_ACTUAL_SIZE & operations ) + { + mImpl->mVisualModel->SetActualSize( layoutSize ); + } + } // view updated + } + else + { + layoutSize = mImpl->mVisualModel->GetActualSize(); } return viewUpdated; } -Vector3 Controller::GetNaturalSize() +void Controller::CalculateTextAlignment( const Size& size ) { - // TODO - Finish implementing - return Vector3::ZERO; - - // 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 or the text changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - REORDER ); + // Get the direction of the first character. + const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u ); - const float maxFloat = std::numeric_limits::max(); - DoRelayout( Vector2( maxFloat, maxFloat ), - static_cast( onlyOnceOperations | - sizeOperations ) ); + const Size& actualSize = mImpl->mVisualModel->GetActualSize(); - // Do not do again the only once operations. - mImpl->mOperations = static_cast( mImpl->mOperations & ~onlyOnceOperations ); - - // Do the size related operations again. - mImpl->mOperations = static_cast( mImpl->mOperations | sizeOperations ); - - return Vector3( mImpl->mVisualModel->GetNaturalSize() ); -} - -float Controller::GetHeightForWidth( float 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 | - SHAPE_TEXT | - GET_GLYPH_METRICS ); - - // Operations that need to be done if the size or the text changes. - const OperationsMask sizeOperations = static_cast( LAYOUT | - REORDER ); - - DoRelayout( Size( width, 0.f ), - static_cast( onlyOnceOperations | - sizeOperations ) ); - - // Do not do again the only once operations. - mImpl->mOperations = static_cast( mImpl->mOperations & ~onlyOnceOperations ); + // 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 ) ) + { + if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment ) + { + horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END; + } + else + { + horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN; + } + } - // Do the size related operations again. - mImpl->mOperations = static_cast( mImpl->mOperations | sizeOperations ); + switch( horizontalAlignment ) + { + 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; + } + } - return mImpl->mVisualModel->GetActualSize().height; + const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment(); + switch( verticalAlignment ) + { + 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; + } + } } View& Controller::GetView() @@ -591,6 +1674,55 @@ void Controller::KeyboardFocusLostEvent() } } +bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent ) +{ + DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyEvent" ); + + if( mImpl->mTextInput && + 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 ) + { + TextInput::Event event( TextInput::CURSOR_KEY_EVENT ); + event.p1.mInt = keyCode; + mImpl->mTextInput->mEventQueue.push_back( event ); + } + else if( Dali::DALI_KEY_BACKSPACE == keyCode ) + { + // Queue a delete event + ModifyEvent event; + event.type = DELETE_TEXT; + mImpl->mModifyEvents.push_back( event ); + } + else if( !keyString.empty() ) + { + // Queue an insert event + ModifyEvent event; + event.type = INSERT_TEXT; + event.text = keyString; + mImpl->mModifyEvents.push_back( event ); + } + + mImpl->mTextInput->ChangeState( TextInput::EDITING ); // todo Confirm this is the best place to change the state of + + RequestRelayout(); + } + + return false; +} + void Controller::TapEvent( unsigned int tapCount, float x, float y ) { DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected TapEvent" ); @@ -607,6 +1739,22 @@ void Controller::TapEvent( unsigned int tapCount, float x, float y ) } } +void Controller::PanEvent( Gesture::State state, const Vector2& displacement ) +{ + DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected PanEvent" ); + + if( mImpl->mTextInput ) + { + 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(); + } +} + void Controller::GrabHandleEvent( GrabHandleState state, float x, float y ) { DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected GrabHandleEvent" );