// EXTERNAL INCLUDES
#include <limits>
-#include <vector>
#include <dali/public-api/adaptor-framework/key.h>
-#include <dali/public-api/text-abstraction/font-client.h>
+#include <dali/integration-api/debug.h>
+#include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/bidirectional-support.h>
#include <dali-toolkit/internal/text/character-set-conversion.h>
-#include <dali-toolkit/internal/text/layouts/layout-engine.h>
#include <dali-toolkit/internal/text/layouts/layout-parameters.h>
-#include <dali-toolkit/internal/text/logical-model-impl.h>
-#include <dali-toolkit/internal/text/multi-language-support.h>
-#include <dali-toolkit/internal/text/script-run.h>
-#include <dali-toolkit/internal/text/segmentation.h>
-#include <dali-toolkit/internal/text/shaper.h>
-#include <dali-toolkit/internal/text/text-io.h>
-#include <dali-toolkit/internal/text/text-view.h>
-#include <dali-toolkit/internal/text/visual-model-impl.h>
-
-using std::vector;
+#include <dali-toolkit/internal/text/text-controller-impl.h>
namespace
{
+#if defined(DEBUG_ENABLED)
+ Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
+#endif
+
const float MAX_FLOAT = std::numeric_limits<float>::max();
+const unsigned int POINTS_PER_INCH = 72;
-enum ModifyType
-{
- REPLACE_TEXT, ///< Replace the entire text
- INSERT_TEXT, ///< Insert characters at the current cursor position
- DELETE_TEXT ///< Delete a character at the current cursor position
-};
+const std::string EMPTY_STRING("");
+const unsigned int ZERO = 0u;
-struct ModifyEvent
+float ConvertToEven( float value )
{
- ModifyType type;
- std::string text;
-};
+ int intValue(static_cast<int>( value ));
+ return static_cast<float>(intValue % 2 == 0) ? intValue : (intValue + 1);
+}
} // namespace
namespace Text
{
-struct Controller::FontDefaults
+ControllerPtr Controller::New( ControlInterface& controlInterface )
+{
+ return ControllerPtr( new Controller( controlInterface ) );
+}
+
+void Controller::EnableTextInput( DecoratorPtr decorator )
{
- FontDefaults()
- : mDefaultPointSize(0.0f),
- mFontId(0u)
+ if( !mImpl->mEventData )
{
+ mImpl->mEventData = new EventData( decorator );
}
+}
- FontId GetFontId( TextAbstraction::FontClient& fontClient )
- {
- if( !mFontId )
- {
- Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64;
- mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize );
- }
+void Controller::SetText( const std::string& text )
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText\n" );
- return mFontId;
- }
+ // Reset keyboard as text changed
+ mImpl->ResetImfManager();
- std::string mDefaultFontFamily;
- std::string mDefaultFontStyle;
- float mDefaultPointSize;
- FontId mFontId;
-};
+ // Remove the previously set text
+ ResetText();
-struct Controller::TextInput
-{
- // Used to queue input events until DoRelayout()
- enum EventType
- {
- KEYBOARD_FOCUS_GAIN_EVENT,
- KEYBOARD_FOCUS_LOST_EVENT,
- CURSOR_KEY_EVENT,
- TAP_EVENT,
- PAN_EVENT,
- GRAB_HANDLE_EVENT
- };
-
- union Param
- {
- int mInt;
- unsigned int mUint;
- float mFloat;
- };
+ CharacterIndex lastCursorIndex = 0u;
- struct Event
+ if( mImpl->mEventData )
{
- Event( EventType eventType )
- : type( eventType )
+ // If popup shown then hide it by switching to Editing state
+ if( ( EventData::SELECTING == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
{
- p1.mInt = 0;
- p2.mInt = 0;
+ mImpl->ChangeState( EventData::EDITING );
}
+ }
+
+ if( !text.empty() )
+ {
+ // Convert text into UTF-32
+ Vector<Character>& 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<const uint8_t*>( text.c_str() );
- EventType type;
- Param p1;
- Param p2;
- Param p3;
- };
+ // 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 );
- struct CursorInfo
+ 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() );
+
+ // To reset the cursor position
+ lastCursorIndex = characterCount;
+
+ // Update the rest of the model during size negotiation
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ }
+ else
{
- CursorInfo()
- : primaryPosition(),
- secondaryPosition(),
- lineHeight( 0.f ),
- primaryCursorHeight( 0.f ),
- secondaryCursorHeight( 0.f ),
- isSecondaryCursor( false )
- {}
+ ShowPlaceholderText();
+ }
+
+ // Resets the cursor position.
+ ResetCursorPosition( lastCursorIndex );
- ~CursorInfo()
- {}
+ // Scrolls the text to make the cursor visible.
+ ResetScrollPosition();
- Vector2 primaryPosition; ///< The primary cursor's position.
- Vector2 secondaryPosition; ///< The secondary cursor's position.
- float lineHeight; ///< The height of the line where the cursor is placed.
- float primaryCursorHeight; ///< The primary cursor's height.
- float secondaryCursorHeight; ///< The secondary cursor's height.
- bool isSecondaryCursor; ///< Whether the secondary cursor is valid.
- };
+ mImpl->RequestRelayout();
- /**
- * @brief Some characters can be shaped in more than one glyph.
- * This struct is used to retrieve metrics from these group of glyphs.
- */
- struct GlyphMetrics
+ if( mImpl->mEventData )
{
- GlyphMetrics()
- : fontHeight( 0.f ),
- advance( 0.f ),
- ascender( 0.f ),
- xBearing( 0.f )
- {}
+ // Cancel previously queued events
+ mImpl->mEventData->mEventQueue.clear();
+ }
- ~GlyphMetrics()
- {}
+ // Notify IMF as text changed
+ NotifyImfManager();
- float fontHeight; ///< The font's height of that glyphs.
- float advance; ///< The sum of all the advances of all the glyphs.
- float ascender; ///< The font's ascender.
- float xBearing; ///< The x bearing of the first glyph.
- };
-
- enum State
- {
- INACTIVE,
- SELECTING,
- EDITING,
- EDITING_WITH_POPUP
- };
-
- TextInput( LogicalModelPtr logicalModel,
- VisualModelPtr visualModel,
- DecoratorPtr decorator,
- FontDefaults* fontDefaults,
- TextAbstraction::FontClient& fontClient )
- : mLogicalModel( logicalModel ),
- mVisualModel( visualModel ),
- mDecorator( decorator ),
- mFontDefaults( fontDefaults ),
- mFontClient( fontClient ),
- 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 ProcessInputEvents( const Vector2& controlSize,
- const Vector2& alignmentOffset )
- {
- mDecoratorUpdated = false;
-
- if( mDecorator )
- {
- for( vector<TextInput::Event>::iterator iter = mEventQueue.begin(); iter != mEventQueue.end(); ++iter )
- {
- switch( iter->type )
- {
- case KEYBOARD_FOCUS_GAIN_EVENT:
- {
- OnKeyboardFocus( true );
- break;
- }
- case KEYBOARD_FOCUS_LOST_EVENT:
- {
- OnKeyboardFocus( false );
- break;
- }
- case CURSOR_KEY_EVENT:
- {
- OnCursorKeyEvent( *iter );
- break;
- }
- case TAP_EVENT:
- {
- OnTapEvent( *iter, alignmentOffset );
- break;
- }
- case PAN_EVENT:
- {
- OnPanEvent( *iter, controlSize, alignmentOffset );
- break;
- }
- case GRAB_HANDLE_EVENT:
- {
- OnGrabHandleEvent( *iter );
- break;
- }
- }
- }
- }
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
+}
+
+void Controller::GetText( std::string& text ) const
+{
+ if( ! mImpl->IsShowingPlaceholderText() )
+ {
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
- // The cursor must also be repositioned after inserts into the model
- if( mUpdateCursorPosition )
+ if( 0u != utf32Characters.Count() )
{
- UpdateCursorPosition();
- mUpdateCursorPosition = false;
+ Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
}
+ }
+ else
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
+ }
+}
- mEventQueue.clear();
-
- return mDecoratorUpdated;
+unsigned int Controller::GetLogicalCursorPosition() const
+{
+ if( mImpl->mEventData )
+ {
+ return mImpl->mEventData->mPrimaryCursorPosition;
}
- void OnKeyboardFocus( bool hasFocus )
+ return 0u;
+}
+
+void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text )
+{
+ if( mImpl->mEventData )
{
- if( !hasFocus )
+ if( PLACEHOLDER_TYPE_INACTIVE == type )
{
- ChangeState( INACTIVE );
+ mImpl->mEventData->mPlaceholderTextInactive = text;
}
else
{
- ChangeState( EDITING );
+ mImpl->mEventData->mPlaceholderTextActive = text;
}
- }
- void OnCursorKeyEvent( const Event& event )
- {
- int keyCode = event.p1.mInt;
-
- if( Dali::DALI_KEY_CURSOR_LEFT == keyCode )
- {
- if( mPrimaryCursorPosition > 0u )
- {
- mPrimaryCursorPosition = CalculateNewCursorIndex( mPrimaryCursorPosition - 1u );
- }
- }
- else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
+ // Update placeholder if there is no text
+ if( mImpl->IsShowingPlaceholderText() ||
+ 0u == mImpl->mLogicalModel->mText.Count() )
{
- if( mLogicalModel->GetNumberOfCharacters() > mPrimaryCursorPosition )
- {
- mPrimaryCursorPosition = CalculateNewCursorIndex( mPrimaryCursorPosition );
- }
+ ShowPlaceholderText();
}
- else if( Dali::DALI_KEY_CURSOR_UP == keyCode )
+ }
+}
+
+void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const
+{
+ if( mImpl->mEventData )
+ {
+ if( PLACEHOLDER_TYPE_INACTIVE == type )
{
- // TODO
+ text = mImpl->mEventData->mPlaceholderTextInactive;
}
- else if( Dali::DALI_KEY_CURSOR_DOWN == keyCode )
+ else
{
- // TODO
+ text = mImpl->mEventData->mPlaceholderTextActive;
}
-
- UpdateCursorPosition();
}
+}
- void HandleCursorKey( int keyCode )
+void Controller::SetMaximumNumberOfCharacters( int maxCharacters )
+{
+ if ( maxCharacters >= 0 )
{
- // TODO
+ mImpl->mMaximumNumberOfCharacters = maxCharacters;
}
+}
- void OnTapEvent( const Event& event,
- const Vector2& alignmentOffset )
- {
- unsigned int tapCount = event.p1.mUint;
+int Controller::GetMaximumNumberOfCharacters()
+{
+ return mImpl->mMaximumNumberOfCharacters;
+}
- if( 1u == tapCount )
- {
- ChangeState( EDITING );
+void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
+ }
- float xPosition = event.p2.mFloat - alignmentOffset.x;
- float yPosition = event.p3.mFloat - alignmentOffset.y;
+ mImpl->mFontDefaults->mFontDescription.family = defaultFontFamily;
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetDefaultFontFamily %s\n", defaultFontFamily.c_str());
+ mImpl->mUserDefinedFontFamily = true;
- mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
+ // Clear the font-specific data
+ ClearFontData();
- UpdateCursorPosition();
- }
- else if( mSelectionEnabled &&
- 2u == tapCount )
- {
- ChangeState( SELECTING );
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat );
- }
- }
+ mImpl->RequestRelayout();
+}
- void OnPanEvent( const Event& event,
- const Vector2& controlSize,
- const Vector2& alignmentOffset )
+const std::string& Controller::GetDefaultFontFamily() const
+{
+ if( mImpl->mFontDefaults )
{
- int state = event.p1.mInt;
-
- if( Gesture::Started == state ||
- Gesture::Continuing == state )
- {
- const Vector2& actualSize = mVisualModel->GetActualSize();
+ return mImpl->mFontDefaults->mFontDescription.family;
+ }
- if( mHorizontalScrollingEnabled )
- {
- const float displacementX = event.p2.mFloat;
- mScrollPosition.x += displacementX;
+ return EMPTY_STRING;
+}
- // 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;
+void Controller::SetDefaultFontStyle( const std::string& style )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
+ }
- mDecoratorUpdated = true;
- }
- else
- {
- mScrollPosition.x = 0.f;
- }
- }
+ mImpl->mFontDefaults->mFontStyle = style;
+}
- if( mVerticalScrollingEnabled )
- {
- const float displacementY = event.p3.mFloat;
- mScrollPosition.y += displacementY;
+const std::string& Controller::GetDefaultFontStyle() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mFontStyle;
+ }
- // 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;
+ return EMPTY_STRING;
+}
- mDecoratorUpdated = true;
- }
- else
- {
- mScrollPosition.y = 0.f;
- }
- }
- }
+void Controller::SetDefaultFontWidth( FontWidth width )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
}
- void OnGrabHandleEvent( const Event& event )
- {
- unsigned int state = event.p1.mUint;
+ mImpl->mFontDefaults->mFontDescription.width = width;
- if( GRAB_HANDLE_PRESSED == state )
- {
- float xPosition = event.p2.mFloat + mScrollPosition.x;
- float yPosition = event.p3.mFloat + mScrollPosition.y;
+ // Clear the font-specific data
+ ClearFontData();
- mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- UpdateCursorPosition();
+ mImpl->RequestRelayout();
+}
- //mDecorator->HidePopup();
- ChangeState ( EDITING );
- }
- else if ( mGrabHandlePopupEnabled &&
- GRAB_HANDLE_RELEASED == state )
- {
- //mDecorator->ShowPopup();
- ChangeState ( EDITING_WITH_POPUP );
- mDecoratorUpdated = true;
- }
+FontWidth Controller::GetDefaultFontWidth() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mFontDescription.width;
}
- void RepositionSelectionHandles( float visualX, float visualY )
+ return TextAbstraction::FontWidth::NORMAL;
+}
+
+void Controller::SetDefaultFontWeight( FontWeight weight )
+{
+ if( !mImpl->mFontDefaults )
{
- // TODO - Find which word was selected
+ mImpl->mFontDefaults = new FontDefaults();
+ }
- const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
- const Vector<Vector2>::SizeType glyphCount = glyphs.Count();
+ mImpl->mFontDefaults->mFontDescription.weight = weight;
- const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
- const Vector<Vector2>::SizeType positionCount = positions.Count();
+ // Clear the font-specific data
+ ClearFontData();
- // Guard against glyphs which did not fit inside the layout
- const Vector<Vector2>::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount;
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- if( count )
- {
- float primaryX = positions[0].x;
- float secondaryX = positions[count-1].x + glyphs[count-1].width;
+ mImpl->RequestRelayout();
+}
- // TODO - multi-line selection
- const Vector<LineRun>& lines = mVisualModel->mLines;
- float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f;
+FontWeight Controller::GetDefaultFontWeight() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mFontDescription.weight;
+ }
- mDecorator->SetPosition( PRIMARY_SELECTION_HANDLE, primaryX, 0.0f, height );
- mDecorator->SetPosition( SECONDARY_SELECTION_HANDLE, secondaryX, 0.0f, height );
+ return TextAbstraction::FontWeight::NORMAL;
+}
- mDecorator->ClearHighlights();
- mDecorator->AddHighlight( primaryX, 0.0f, secondaryX, height );
- }
+void Controller::SetDefaultFontSlant( FontSlant slant )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
}
- void ChangeState( State newState )
- {
- if( mState != newState )
- {
- mState = newState;
+ mImpl->mFontDefaults->mFontDescription.slant = slant;
- 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;
- }
- }
- }
+ // Clear the font-specific data
+ ClearFontData();
- LineIndex GetClosestLine( float y ) const
- {
- float totalHeight = 0.f;
- LineIndex lineIndex = 0u;
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- const Vector<LineRun>& lines = mVisualModel->mLines;
- for( LineIndex endLine = lines.Count();
- lineIndex < endLine;
- ++lineIndex )
- {
- const LineRun& lineRun = lines[lineIndex];
- totalHeight += lineRun.ascender + -lineRun.descender;
- if( y < totalHeight )
- {
- return lineIndex;
- }
- }
+ mImpl->RequestRelayout();
+}
- return lineIndex-1;
+FontSlant Controller::GetDefaultFontSlant() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mFontDescription.slant;
}
- /**
- * @brief Retrieves the cursor's logical position for a given touch point x,y
- *
- * @param[in] visualX The touch point x.
- * @param[in] visualY The touch point y.
- *
- * @return The logical cursor position (in characters). 0 is just before the first character, a value equal to the number of characters is just after the last character.
- */
- CharacterIndex GetClosestCursorIndex( float visualX,
- float visualY ) const
+ return TextAbstraction::FontSlant::NORMAL;
+}
+
+void Controller::SetDefaultPointSize( float pointSize )
+{
+ if( !mImpl->mFontDefaults )
{
- CharacterIndex logicalIndex = 0u;
+ mImpl->mFontDefaults = new FontDefaults();
+ }
- const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
- const Length numberOfLines = mVisualModel->mLines.Count();
- if( 0 == numberOfGlyphs ||
- 0 == numberOfLines )
- {
- return logicalIndex;
- }
+ mImpl->mFontDefaults->mDefaultPointSize = pointSize;
- // Transform to visual model coords
- visualX -= mScrollPosition.x;
- visualY -= mScrollPosition.y;
+ unsigned int horizontalDpi( 0u );
+ unsigned int verticalDpi( 0u );
+ mImpl->mFontClient.GetDpi( horizontalDpi, verticalDpi );
- // Find which line is closest
- const LineIndex lineIndex = GetClosestLine( visualY );
- const LineRun& line = mVisualModel->mLines[lineIndex];
+ // Adjust the metrics if the fixed-size font should be down-scaled
+ int maxEmojiSize( pointSize/POINTS_PER_INCH * verticalDpi );
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::SetDefaultPointSize %p setting MaxEmojiSize %d\n", this, maxEmojiSize );
+ mImpl->mMetrics->SetMaxEmojiSize( maxEmojiSize );
- // Get the positions of the glyphs.
- const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
- const Vector2* const positionsBuffer = positions.Begin();
+ // Clear the font-specific data
+ ClearFontData();
- // Get the visual to logical conversion tables.
- const CharacterIndex* const visualToLogicalBuffer = ( 0u != mLogicalModel->mVisualToLogicalMap.Count() ) ? mLogicalModel->mVisualToLogicalMap.Begin() : NULL;
- const CharacterIndex* const visualToLogicalCursorBuffer = mLogicalModel->mVisualToLogicalCursorMap.Begin();
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- // Get the character to glyph conversion table.
- const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ mImpl->RequestRelayout();
+}
- // Get the glyphs per character table.
- const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+float Controller::GetDefaultPointSize() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mDefaultPointSize;
+ }
- // If the vector is void, there is no right to left characters.
- const bool hasRightToLeftCharacters = NULL != visualToLogicalBuffer;
+ return 0.0f;
+}
- const CharacterIndex startCharacter = line.characterRun.characterIndex;
- const CharacterIndex endCharacter = line.characterRun.characterIndex + line.characterRun.numberOfCharacters;
- DALI_ASSERT_DEBUG( endCharacter <= mLogicalModel->mText.Count() && "Invalid line info" );
+void Controller::UpdateAfterFontChange( std::string& newDefaultFont )
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Concise, "Controller::UpdateAfterFontChange");
- // Whether there is a hit on a glyph.
- bool matched = false;
+ if ( !mImpl->mUserDefinedFontFamily ) // If user defined font then should not update when system font changes
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Concise, "Controller::UpdateAfterFontChange newDefaultFont(%s)\n", newDefaultFont.c_str() );
+ ClearFontData();
+ mImpl->mFontDefaults->mFontDescription.family = newDefaultFont;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+ mImpl->mRecalculateNaturalSize = true;
+ mImpl->RequestRelayout();
+ }
+}
- // Traverses glyphs in visual order. To do that use the visual to logical conversion table.
- CharacterIndex visualIndex = startCharacter;
- for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex )
- {
- // The character in logical order.
- const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex;
+void Controller::SetTextColor( const Vector4& textColor )
+{
+ mImpl->mTextColor = textColor;
- // The first glyph for that character in logical order.
- const GlyphIndex glyphLogicalOrderIndex = *( charactersToGlyphBuffer + characterLogicalOrderIndex );
+ if( !mImpl->IsShowingPlaceholderText() )
+ {
+ mImpl->mVisualModel->SetTextColor( textColor );
- // The number of glyphs for that character
- const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex );
+ mImpl->RequestRelayout();
+ }
+}
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( glyphLogicalOrderIndex,
- numberOfGlyphs,
- glyphMetrics );
+const Vector4& Controller::GetTextColor() const
+{
+ return mImpl->mTextColor;
+}
- const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
+bool Controller::RemoveText( int cursorOffset, int numberOfChars )
+{
+ bool removed( false );
- const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+ 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( visualX < glyphX )
- {
- matched = true;
- break;
- }
- }
+ if( !mImpl->IsShowingPlaceholderText() )
+ {
+ // Delete at current cursor position
+ Vector<Character>& currentText = mImpl->mLogicalModel->mText;
+ CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
- // Return the logical position of the cursor in characters.
+ CharacterIndex cursorIndex = oldCursorIndex;
- if( !matched )
+ // Validate the cursor position & number of characters
+ if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex )
{
- visualIndex = endCharacter;
+ cursorIndex = oldCursorIndex + cursorOffset;
}
- return hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
- }
+ if( ( cursorIndex + numberOfChars ) > currentText.Count() )
+ {
+ numberOfChars = currentText.Count() - cursorIndex;
+ }
- /**
- * @brief Calculates the cursor's position for a given character index in the logical order.
- *
- * It retrieves as well the line's height and the cursor's height and
- * if there is a valid alternative cursor, its position and height.
- *
- * @param[in] logical The logical cursor position (in characters). 0 is just before the first character, a value equal to the number of characters is just after the last character.
- * @param[out] cursorInfo The line's height, the cursor's height, the cursor's position and whether there is an alternative cursor.
- */
- void GetCursorPosition( CharacterIndex logical,
- CursorInfo& cursorInfo ) const
- {
- // TODO: Check for multiline with \n, etc...
+ if( ( cursorIndex + numberOfChars ) <= currentText.Count() )
+ {
+ Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
+ Vector<Character>::Iterator last = first + numberOfChars;
- // Check if the logical position is the first or the last one of the text.
- const bool isFirstPosition = 0u == logical;
- const bool isLastPosition = mLogicalModel->GetNumberOfCharacters() == logical;
+ currentText.Erase( first, last );
- if( isFirstPosition && isLastPosition )
- {
- // There is zero characters. Get the default font.
+ // Cursor position retreat
+ oldCursorIndex = cursorIndex;
- FontId defaultFontId = 0u;
- if( NULL == mFontDefaults )
- {
- defaultFontId = mFontClient.GetFontId( String::EMPTY,
- String::EMPTY );
- }
- else
- {
- defaultFontId = mFontDefaults->GetFontId( mFontClient );
- }
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
+ removed = true;
+ }
+ }
- Text::FontMetrics fontMetrics;
- mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
+ return removed;
+}
- cursorInfo.lineHeight = fontMetrics.ascender - fontMetrics.descender;
- cursorInfo.primaryCursorHeight = cursorInfo.lineHeight;
+void Controller::SetPlaceholderTextColor( const Vector4& textColor )
+{
+ if( mImpl->mEventData )
+ {
+ mImpl->mEventData->mPlaceholderTextColor = textColor;
+ }
- cursorInfo.primaryPosition.x = 0.f;
- cursorInfo.primaryPosition.y = 0.f;
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ mImpl->mVisualModel->SetTextColor( textColor );
+ mImpl->RequestRelayout();
+ }
+}
- // Nothing else to do.
- return;
- }
+const Vector4& Controller::GetPlaceholderTextColor() const
+{
+ if( mImpl->mEventData )
+ {
+ return mImpl->mEventData->mPlaceholderTextColor;
+ }
- // Get the previous logical index.
- const CharacterIndex previousLogical = isFirstPosition ? 0u : logical - 1u;
+ return Color::BLACK;
+}
- // Decrease the logical index if it's the last one.
- if( isLastPosition )
- {
- --logical;
- }
+void Controller::SetShadowOffset( const Vector2& shadowOffset )
+{
+ mImpl->mVisualModel->SetShadowOffset( shadowOffset );
- // Get the direction of the character and the previous one.
- const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
+ mImpl->RequestRelayout();
+}
- CharacterDirection isCurrentRightToLeft = false;
- CharacterDirection isPreviousRightToLeft = false;
- if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
- {
- isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + logical );
- isPreviousRightToLeft = *( modelCharacterDirectionsBuffer + previousLogical );
- }
+const Vector2& Controller::GetShadowOffset() const
+{
+ return mImpl->mVisualModel->GetShadowOffset();
+}
+
+void Controller::SetShadowColor( const Vector4& shadowColor )
+{
+ mImpl->mVisualModel->SetShadowColor( shadowColor );
- // Get the line where the character is laid-out.
- const LineRun* modelLines = mVisualModel->mLines.Begin();
+ mImpl->RequestRelayout();
+}
- const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( logical );
- const LineRun& line = *( modelLines + lineIndex );
+const Vector4& Controller::GetShadowColor() const
+{
+ return mImpl->mVisualModel->GetShadowColor();
+}
- // Get the paragraph's direction.
- const CharacterDirection isRightToLeftParagraph = line.direction;
+void Controller::SetUnderlineColor( const Vector4& color )
+{
+ mImpl->mVisualModel->SetUnderlineColor( color );
- // Check whether there is an alternative position:
+ mImpl->RequestRelayout();
+}
- cursorInfo.isSecondaryCursor = ( isCurrentRightToLeft != isPreviousRightToLeft ) ||
- ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
+const Vector4& Controller::GetUnderlineColor() const
+{
+ return mImpl->mVisualModel->GetUnderlineColor();
+}
- // Set the line height.
- cursorInfo.lineHeight = line.ascender + -line.descender;
+void Controller::SetUnderlineEnabled( bool enabled )
+{
+ mImpl->mVisualModel->SetUnderlineEnabled( enabled );
- // Convert the cursor position into the glyph position.
- CharacterIndex characterIndex = logical;
- if( cursorInfo.isSecondaryCursor &&
- ( isRightToLeftParagraph != isCurrentRightToLeft ) )
- {
- characterIndex = previousLogical;
- }
+ mImpl->RequestRelayout();
+}
- const GlyphIndex currentGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
- const Length numberOfCharacters = *( mVisualModel->mCharactersPerGlyph.Begin() +currentGlyphIndex );
+bool Controller::IsUnderlineEnabled() const
+{
+ return mImpl->mVisualModel->IsUnderlineEnabled();
+}
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( currentGlyphIndex,
- numberOfGlyphs,
- glyphMetrics );
+void Controller::SetUnderlineHeight( float height )
+{
+ mImpl->mVisualModel->SetUnderlineHeight( height );
- float interGlyphAdvance = 0.f;
- if( !isLastPosition &&
- ( numberOfCharacters > 1u ) )
- {
- const CharacterIndex firstIndex = *( mVisualModel->mGlyphsToCharacters.Begin() + currentGlyphIndex );
- interGlyphAdvance = static_cast<float>( characterIndex - firstIndex ) * glyphMetrics.advance / static_cast<float>( numberOfCharacters );
- }
+ mImpl->RequestRelayout();
+}
- // Get the glyph position and x bearing.
- const Vector2& currentPosition = *( mVisualModel->mGlyphPositions.Begin() + currentGlyphIndex );
+float Controller::GetUnderlineHeight() const
+{
+ return mImpl->mVisualModel->GetUnderlineHeight();
+}
- // Set the cursor's height.
- cursorInfo.primaryCursorHeight = glyphMetrics.fontHeight;
+void Controller::SetEnableCursorBlink( bool enable )
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
- // Set the position.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + currentPosition.x + ( isCurrentRightToLeft ? glyphMetrics.advance : interGlyphAdvance );
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
+ if( mImpl->mEventData )
+ {
+ mImpl->mEventData->mCursorBlinkEnabled = enable;
- if( isLastPosition )
+ if( !enable &&
+ mImpl->mEventData->mDecorator )
{
- // The position of the cursor after the last character needs special
- // care depending on its direction and the direction of the paragraph.
+ mImpl->mEventData->mDecorator->StopCursorBlink();
+ }
+ }
+}
- if( cursorInfo.isSecondaryCursor )
- {
- // Need to find the first character after the last character with the paragraph's direction.
- // i.e l0 l1 l2 r0 r1 should find r0.
+bool Controller::GetEnableCursorBlink() const
+{
+ if( mImpl->mEventData )
+ {
+ return mImpl->mEventData->mCursorBlinkEnabled;
+ }
- // TODO: check for more than one line!
- characterIndex = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u;
- characterIndex = mLogicalModel->GetLogicalCharacterIndex( characterIndex );
+ return false;
+}
- const GlyphIndex glyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
+const Vector2& Controller::GetScrollPosition() const
+{
+ if( mImpl->mEventData )
+ {
+ return mImpl->mEventData->mScrollPosition;
+ }
- const Vector2& position = *( mVisualModel->mGlyphPositions.Begin() + glyphIndex );
+ return Vector2::ZERO;
+}
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( glyphIndex,
- numberOfGlyphs,
- glyphMetrics );
+const Vector2& Controller::GetAlignmentOffset() const
+{
+ return mImpl->mAlignmentOffset;
+}
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + position.x + ( isRightToLeftParagraph ? 0.f : glyphMetrics.advance );
+Vector3 Controller::GetNaturalSize()
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
+ Vector3 naturalSize;
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
- }
- else
- {
- if( !isCurrentRightToLeft )
- {
- cursorInfo.primaryPosition.x += glyphMetrics.advance;
- }
- else
- {
- cursorInfo.primaryPosition.x -= glyphMetrics.advance;
- }
- }
- }
+ // Make sure the model is up-to-date before layouting
+ ProcessModifyEvents();
- // Set the alternative cursor position.
- if( cursorInfo.isSecondaryCursor )
- {
- // Convert the cursor position into the glyph position.
- const CharacterIndex previousCharacterIndex = ( ( isRightToLeftParagraph != isCurrentRightToLeft ) ? logical : previousLogical );
- const GlyphIndex previousGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + previousCharacterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + previousCharacterIndex );
+ if( mImpl->mRecalculateNaturalSize )
+ {
+ // Operations that can be done only once until the text changes.
+ const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( 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 );
+
+ // Operations that need to be done if the size changes.
+ const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ REORDER );
- // Get the glyph position.
- const Vector2& previousPosition = *( mVisualModel->mGlyphPositions.Begin() + previousGlyphIndex );
+ DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
+ static_cast<OperationsMask>( onlyOnceOperations |
+ sizeOperations ),
+ naturalSize.GetVectorXY() );
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( previousGlyphIndex,
- numberOfGlyphs,
- glyphMetrics );
+ // Do not do again the only once operations.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
- // Set the cursor position and height.
- cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + previousPosition.x + ( ( ( isLastPosition && !isCurrentRightToLeft ) ||
- ( !isLastPosition && isCurrentRightToLeft ) ) ? glyphMetrics.advance : 0.f );
+ // Do the size related operations again.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
- cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
+ // Stores the natural size to avoid recalculate it again
+ // unless the text/style changes.
+ mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
- cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
+ mImpl->mRecalculateNaturalSize = false;
- // Update the primary cursor height as well.
- cursorInfo.primaryCursorHeight *= 0.5f;
- }
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
}
-
- /**
- * @brief Get some glyph's metrics of a group of glyphs formed as a result of shaping one character.
- *
- * @param[in] glyphIndex The index to the first glyph.
- * @param[in] numberOfGlyphs The number of glyphs.
- * @param[out] glyphMetrics Some glyph metrics (font height, advance, ascender and x bearing).
- */
- void GetGlyphsMetrics( GlyphIndex glyphIndex,
- Length numberOfGlyphs,
- GlyphMetrics& glyphMetrics ) const
+ else
{
- const GlyphInfo* glyphsBuffer = mVisualModel->mGlyphs.Begin();
-
- const GlyphInfo& firstGlyph = *( glyphsBuffer + glyphIndex );
+ naturalSize = mImpl->mVisualModel->GetNaturalSize();
- Text::FontMetrics fontMetrics;
- mFontClient.GetFontMetrics( firstGlyph.fontId, fontMetrics );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
+ }
- glyphMetrics.fontHeight = fontMetrics.height;
- glyphMetrics.advance = firstGlyph.advance;
- glyphMetrics.ascender = fontMetrics.ascender;
- glyphMetrics.xBearing = firstGlyph.xBearing;
+ naturalSize.x = ConvertToEven( naturalSize.x );
+ naturalSize.y = ConvertToEven( naturalSize.y );
- for( unsigned int i = 1u; i < numberOfGlyphs; ++i )
- {
- const GlyphInfo& glyphInfo = *( glyphsBuffer + glyphIndex + i );
+ return naturalSize;
+}
- glyphMetrics.advance += glyphInfo.advance;
- }
- }
+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();
- /**
- * @brief Calculates the new cursor index.
- *
- * It takes into account that in some scripts multiple characters can form a glyph and all of them
- * need to be jumped with one key event.
- *
- * @param[in] index The initial new index.
- *
- * @return The new cursor index.
- */
- CharacterIndex CalculateNewCursorIndex( CharacterIndex index ) const
+ Size layoutSize;
+ if( width != mImpl->mVisualModel->mControlSize.width )
{
- CharacterIndex cursorIndex = mPrimaryCursorPosition;
-
- const Script script = mLogicalModel->GetScript( index );
- const GlyphIndex* charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
- const Length* charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ // Operations that can be done only once until the text changes.
+ const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( 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 );
- Length numberOfCharacters = 0u;
- if( TextAbstraction::LATIN == script )
- {
- // Prevents to jump the whole Latin ligatures like fi, ff, ...
- numberOfCharacters = 1u;
- }
- else
- {
- GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
+ // Operations that need to be done if the size changes.
+ const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ REORDER );
- while( 0u == numberOfCharacters )
- {
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
- ++glyphIndex;
- }
- }
+ DoRelayout( Size( width, MAX_FLOAT ),
+ static_cast<OperationsMask>( onlyOnceOperations |
+ sizeOperations ),
+ layoutSize );
- if( index < mPrimaryCursorPosition )
- {
- cursorIndex -= numberOfCharacters;
- }
- else
- {
- cursorIndex += numberOfCharacters;
- }
+ // Do not do again the only once operations.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
- return cursorIndex;
+ // Do the size related operations again.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
}
-
- void UpdateCursorPosition()
+ else
{
- CursorInfo cursorInfo;
+ layoutSize = mImpl->mVisualModel->GetActualSize();
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
+ }
- GetCursorPosition( mPrimaryCursorPosition,
- cursorInfo );
+ return layoutSize.height;
+}
- mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorInfo.primaryPosition.x,
- cursorInfo.primaryPosition.y,
- cursorInfo.primaryCursorHeight,
- cursorInfo.lineHeight );
+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( cursorInfo.isSecondaryCursor )
+ if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
+ {
+ bool glyphsRemoved( false );
+ if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() )
{
- mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
- mDecorator->SetPosition( SECONDARY_CURSOR,
- cursorInfo.secondaryPosition.x,
- cursorInfo.secondaryPosition.y,
- cursorInfo.secondaryCursorHeight,
- cursorInfo.lineHeight );
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ glyphsRemoved = true;
}
- else
- {
- mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- }
-
- mUpdateCursorPosition = false;
- mDecoratorUpdated = true;
- }
-
- LogicalModelPtr mLogicalModel;
- VisualModelPtr mVisualModel;
- DecoratorPtr mDecorator;
- FontDefaults* mFontDefaults;
- TextAbstraction::FontClient& mFontClient;
- 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<Event> mEventQueue; ///< The queue of touch events etc.
-
- 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 ),
- mLogicalModel(),
- mVisualModel(),
- mFontDefaults( NULL ),
- mTextInput( NULL ),
- mFontClient(),
- mView(),
- mLayoutEngine(),
- mModifyEvents(),
- mControlSize(),
- mAlignmentOffset(),
- mOperationsPending( NO_OPERATION ),
- mRecalculateNaturalSize( true )
- {
- mLogicalModel = LogicalModel::New();
- mVisualModel = VisualModel::New();
-
- mFontClient = TextAbstraction::FontClient::Get();
-
- mView.SetVisualModel( mVisualModel );
-
- // Set the text properties to default
- mVisualModel->SetTextColor( Color::WHITE );
- mVisualModel->SetShadowOffset( Vector2::ZERO );
- mVisualModel->SetShadowColor( Vector4::ZERO );
- mVisualModel->SetUnderlineEnabled( false );
- mVisualModel->SetUnderlineHeight( 0.0f );
- }
-
- ~Impl()
- {
- delete 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<ModifyEvent> 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 )
-{
- return ControllerPtr( new Controller( controlInterface ) );
-}
-
-void Controller::SetText( const std::string& text )
-{
- // Cancel previously queued inserts etc.
- mImpl->mModifyEvents.clear();
+ // Not worth to relayout if width or height is equal to zero.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
+ return glyphsRemoved;
+ }
- // Keep until size negotiation
- ModifyEvent event;
- event.type = REPLACE_TEXT;
- event.text = text;
- mImpl->mModifyEvents.push_back( event );
+ const bool newSize = ( size != mImpl->mVisualModel->mControlSize );
- if( mImpl->mTextInput )
+ if( newSize )
{
- // Cancel previously queued events
- mImpl->mTextInput->mEventQueue.clear();
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height );
- // TODO - Hide selection decorations
- }
-}
+ // Operations that need to be done if the size changes.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
+ LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
-void Controller::GetText( std::string& text ) const
-{
- if( !mImpl->mModifyEvents.empty() &&
- REPLACE_TEXT == mImpl->mModifyEvents[0].type )
- {
- text = mImpl->mModifyEvents[0].text;
- }
- else
- {
- // TODO - Convert from UTF-32
+ mImpl->mVisualModel->mControlSize = size;
}
-}
-void Controller::SetPlaceholderText( const std::string& text )
-{
- if( !mImpl->mTextInput )
+ // Make sure the model is up-to-date before layouting
+ ProcessModifyEvents();
+ mImpl->UpdateModel( mImpl->mOperationsPending );
+
+ Size layoutSize;
+ bool updated = DoRelayout( mImpl->mVisualModel->mControlSize,
+ mImpl->mOperationsPending,
+ layoutSize );
+
+ // Do not re-do any operation until something changes.
+ mImpl->mOperationsPending = NO_OPERATION;
+
+ // Keep the current offset and alignment as it will be used to update the decorator's positions (if the size changes).
+ Vector2 offset;
+ if( newSize && mImpl->mEventData )
{
- mImpl->mTextInput->mPlaceholderText = text;
+ offset = mImpl->mAlignmentOffset + mImpl->mEventData->mScrollPosition;
}
-}
-void Controller::GetPlaceholderText( std::string& text ) const
-{
- if( !mImpl->mTextInput )
+ // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
+ CalculateTextAlignment( size );
+
+ if( mImpl->mEventData )
{
- text = mImpl->mTextInput->mPlaceholderText;
+ if( newSize )
+ {
+ // If there is a new size, the scroll position needs to be clamped.
+ mImpl->ClampHorizontalScroll( layoutSize );
+
+ // Update the decorator's positions is needed if there is a new size.
+ mImpl->mEventData->mDecorator->UpdatePositions( mImpl->mAlignmentOffset + mImpl->mEventData->mScrollPosition - offset );
+ }
+
+ // Move the cursor, grab handle etc.
+ updated = mImpl->ProcessInputEvents() || updated;
}
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
+ return updated;
}
-void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
+void Controller::ProcessModifyEvents()
{
- if( !mImpl->mFontDefaults )
- {
- mImpl->mFontDefaults = new Controller::FontDefaults();
- }
+ std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
- 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();
- mImpl->mVisualModel->ClearCaches();
-
- RequestRelayout();
-}
-
-const std::string& Controller::GetDefaultFontFamily() const
-{
- if( mImpl->mFontDefaults )
+ for( unsigned int i=0; i<events.size(); ++i )
{
- return mImpl->mFontDefaults->mDefaultFontFamily;
- }
-
- return String::EMPTY;;
-}
+ if( ModifyEvent::TEXT_REPLACED == events[i].type )
+ {
+ // A (single) replace event should come first, otherwise we wasted time processing NOOP events
+ DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
-void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
-{
- if( !mImpl->mFontDefaults )
- {
- mImpl->mFontDefaults = new Controller::FontDefaults();
+ TextReplacedEvent();
+ }
+ else if( ModifyEvent::TEXT_INSERTED == events[i].type )
+ {
+ TextInsertedEvent();
+ }
+ else if( ModifyEvent::TEXT_DELETED == events[i].type )
+ {
+ // Placeholder-text cannot be deleted
+ if( !mImpl->IsShowingPlaceholderText() )
+ {
+ TextDeletedEvent();
+ }
+ }
}
- 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();
- mImpl->mVisualModel->ClearCaches();
-
- RequestRelayout();
-}
-
-const std::string& Controller::GetDefaultFontStyle() const
-{
- if( mImpl->mFontDefaults )
+ if( mImpl->mEventData &&
+ 0 != events.size() )
{
- return mImpl->mFontDefaults->mDefaultFontStyle;
+ // When the text is being modified, delay cursor blinking
+ mImpl->mEventData->mDecorator->DelayCursorBlink();
}
- return String::EMPTY;
+ // Discard temporary text
+ events.clear();
}
-void Controller::SetDefaultPointSize( float pointSize )
+void Controller::ResetText()
{
- if( !mImpl->mFontDefaults )
- {
- mImpl->mFontDefaults = new Controller::FontDefaults();
- }
+ // Reset buffers.
+ mImpl->mLogicalModel->mText.Clear();
+ ClearModelData();
- mImpl->mFontDefaults->mDefaultPointSize = pointSize;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperationsPending = ALL_OPERATIONS;
- mImpl->mRecalculateNaturalSize = true;
+ // We have cleared everything including the placeholder-text
+ mImpl->PlaceholderCleared();
- // 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();
- mImpl->mVisualModel->ClearCaches();
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
- RequestRelayout();
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
}
-float Controller::GetDefaultPointSize() const
+void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
{
- if( mImpl->mFontDefaults )
+ // Reset the cursor position
+ if( NULL != mImpl->mEventData )
{
- return mImpl->mFontDefaults->mDefaultPointSize;
- }
+ mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
- return 0.0f;
+ // Update the cursor if it's in editing mode.
+ if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
+ {
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ }
}
-void Controller::GetDefaultFonts( Vector<FontRun>& fonts, Length numberOfCharacters ) const
+void Controller::ResetScrollPosition()
{
- if( mImpl->mFontDefaults )
+ if( NULL != mImpl->mEventData )
{
- FontRun fontRun;
- fontRun.characterRun.characterIndex = 0;
- fontRun.characterRun.numberOfCharacters = numberOfCharacters;
- fontRun.fontId = mImpl->mFontDefaults->GetFontId( mImpl->mFontClient );
- fontRun.isDefault = true;
-
- fonts.PushBack( fontRun );
+ // Reset the scroll position.
+ mImpl->mEventData->mScrollPosition = Vector2::ZERO;
+ mImpl->mEventData->mScrollAfterUpdatePosition = true;
}
}
-const Vector4& Controller::GetTextColor() const
+void Controller::TextReplacedEvent()
{
- return mImpl->mVisualModel->GetTextColor();
-}
+ // Reset buffers.
+ ClearModelData();
-const Vector2& Controller::GetShadowOffset() const
-{
- return mImpl->mVisualModel->GetShadowOffset();
-}
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
-const Vector4& Controller::GetShadowColor() const
-{
- return mImpl->mVisualModel->GetShadowColor();
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
}
-const Vector4& Controller::GetUnderlineColor() const
+void Controller::TextInsertedEvent()
{
- return mImpl->mVisualModel->GetUnderlineColor();
-}
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
-bool Controller::IsUnderlineEnabled() const
-{
- return mImpl->mVisualModel->IsUnderlineEnabled();
-}
+ // TODO - Optimize this
+ ClearModelData();
-float Controller::GetUnderlineHeight() const
-{
- return mImpl->mVisualModel->GetUnderlineHeight();
-}
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
-void Controller::SetTextColor( const Vector4& textColor )
-{
- mImpl->mVisualModel->SetTextColor( textColor );
-}
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
-void Controller::SetShadowOffset( const Vector2& shadowOffset )
-{
- mImpl->mVisualModel->SetShadowOffset( shadowOffset );
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
+ {
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdatePosition = true;
+ }
}
-void Controller::SetShadowColor( const Vector4& shadowColor )
+void Controller::TextDeletedEvent()
{
- mImpl->mVisualModel->SetShadowColor( shadowColor );
-}
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
-void Controller::SetUnderlineColor( const Vector4& color )
-{
- mImpl->mVisualModel->SetUnderlineColor( color );
-}
+ // TODO - Optimize this
+ ClearModelData();
-void Controller::SetUnderlineEnabled( bool enabled )
-{
- mImpl->mVisualModel->SetUnderlineEnabled( enabled );
-}
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
-void Controller::SetUnderlineHeight( float height )
-{
- mImpl->mVisualModel->SetUnderlineHeight( height );
-}
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
-void Controller::EnableTextInput( DecoratorPtr decorator )
-{
- if( !mImpl->mTextInput )
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ if( 0u != mImpl->mLogicalModel->mText.Count() )
{
- mImpl->mTextInput = new TextInput( mImpl->mLogicalModel,
- mImpl->mVisualModel,
- decorator,
- mImpl->mFontDefaults,
- mImpl->mFontClient );
+ mImpl->mEventData->mScrollAfterDelete = true;
}
}
-void Controller::SetEnableCursorBlink( bool enable )
+bool Controller::DoRelayout( const Size& size,
+ OperationsMask operationsRequired,
+ Size& layoutSize )
{
- DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "TextInput disabled" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
+ bool viewUpdated( false );
- if( mImpl->mTextInput )
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
+
+ if( LAYOUT & operations )
{
- mImpl->mTextInput->mCursorBlinkEnabled = enable;
+ // 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.
- if( !enable &&
- mImpl->mTextInput->mDecorator )
+ const Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
+
+ if( 0u == numberOfGlyphs )
{
- mImpl->mTextInput->mDecorator->StopCursorBlink();
+ // 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;
}
- }
-}
-bool Controller::GetEnableCursorBlink() const
-{
- if( mImpl->mTextInput )
- {
- return mImpl->mTextInput->mCursorBlinkEnabled;
- }
+ const Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
+ const Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
+ const Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
+ const Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
+ const Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
+ const Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
+ const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin();
- return false;
-}
+ // Set the layout parameters.
+ LayoutParameters layoutParameters( size,
+ textBuffer,
+ lineBreakInfo.Begin(),
+ wordBreakInfo.Begin(),
+ ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
+ numberOfGlyphs,
+ glyphs.Begin(),
+ glyphsToCharactersMap.Begin(),
+ charactersPerGlyph.Begin() );
-const Vector2& Controller::GetScrollPosition() const
-{
- if( mImpl->mTextInput )
- {
- return mImpl->mTextInput->mScrollPosition;
- }
+ // 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<LineRun>& lines = mImpl->mVisualModel->mLines;
- return Vector2::ZERO;
-}
+ // Delete any previous laid out lines before setting the new ones.
+ lines.Clear();
-const Vector2& Controller::GetAlignmentOffset() const
-{
- return mImpl->mAlignmentOffset;
-}
+ // The capacity of the bidirectional paragraph info is the number of paragraphs.
+ lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
-Vector3 Controller::GetNaturalSize()
-{
- Vector3 naturalSize;
+ // Resize the vector of positions to have the same size than the vector of glyphs.
+ Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
+ glyphPositions.Resize( numberOfGlyphs );
- // Make sure the model is up-to-date before layouting
- ProcessModifyEvents();
+ // Whether the last character is a new paragraph character.
+ layoutParameters.isLastNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) );
- if( mImpl->mRecalculateNaturalSize )
- {
- // Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( 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 );
+ // Update the visual model.
+ viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
+ glyphPositions,
+ lines,
+ layoutSize );
- // Operations that need to be done if the size changes.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- REORDER );
+ if( viewUpdated )
+ {
+ // Reorder the lines
+ if( REORDER & operations )
+ {
+ Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
- DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
- static_cast<OperationsMask>( onlyOnceOperations |
- sizeOperations ),
- naturalSize.GetVectorXY() );
+ // Check first if there are paragraphs with bidirectional info.
+ if( 0u != bidirectionalInfo.Count() )
+ {
+ // Get the lines
+ const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
- // Do not do again the only once operations.
- mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
+ // Reorder the lines.
+ Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
+ lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
+ ReorderLines( bidirectionalInfo,
+ lines,
+ lineBidirectionalInfoRuns );
- // Do the size related operations again.
- mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
+ // Set the bidirectional info into the model.
+ const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
+ mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
+ numberOfBidirectionalInfoRuns );
- // Stores the natural size to avoid recalculate it again
- // unless the text/style changes.
- mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
+ // Set the bidirectional info per line into the layout parameters.
+ layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
+ layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
- mImpl->mRecalculateNaturalSize = false;
+ // 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<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
+ endIt = lineBidirectionalInfoRuns.End();
+ it != endIt;
+ ++it )
+ {
+ BidirectionalLineInfoRun& bidiLineInfo = *it;
+
+ free( bidiLineInfo.visualToLogicalMap );
+ }
+ }
+ } // REORDER
+
+ // Sets the actual size.
+ if( UPDATE_ACTUAL_SIZE & operations )
+ {
+ mImpl->mVisualModel->SetActualSize( layoutSize );
+ }
+ } // view updated
}
else
{
- naturalSize = mImpl->mVisualModel->GetNaturalSize();
+ layoutSize = mImpl->mVisualModel->GetActualSize();
}
- return naturalSize;
+ if( ALIGN & operations )
+ {
+ // The laid-out lines.
+ Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
+
+ mImpl->mLayoutEngine.Align( layoutSize,
+ lines );
+
+ viewUpdated = true;
+ }
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
+ return viewUpdated;
}
-float Controller::GetHeightForWidth( float width )
+void Controller::SetMultiLineEnabled( bool enable )
{
- // Make sure the model is up-to-date before layouting
- ProcessModifyEvents();
+ const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
- Size layoutSize;
- if( width != mImpl->mControlSize.width )
+ if( layout != mImpl->mLayoutEngine.GetLayout() )
{
- // Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( 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 );
+ // Set the layout type.
+ mImpl->mLayoutEngine.SetLayout( layout );
- // Operations that need to be done if the size changes.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- REORDER );
-
- DoRelayout( Size( width, MAX_FLOAT ),
- static_cast<OperationsMask>( onlyOnceOperations |
- sizeOperations ),
- layoutSize );
+ // Set the flags to redo the layout operations
+ const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
+ UPDATE_ACTUAL_SIZE |
+ ALIGN |
+ REORDER );
- // Do not do again the only once operations.
- mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
- // Do the size related operations again.
- mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
- }
- else
- {
- layoutSize = mImpl->mVisualModel->GetActualSize();
+ mImpl->RequestRelayout();
}
+}
- return layoutSize.height;
+bool Controller::IsMultiLineEnabled() const
+{
+ return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
}
-bool Controller::Relayout( const Size& size )
+void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
{
- if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
+ if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
{
- bool glyphsRemoved( false );
- if( 0u != mImpl->mVisualModel->GetNumberOfGlyphPositions() )
- {
- mImpl->mVisualModel->SetGlyphPositions( NULL, 0u );
- glyphsRemoved = true;
- }
+ // Set the alignment.
+ mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
- // Not worth to relayout if width or height is equal to zero.
- return glyphsRemoved;
- }
-
- if( size != mImpl->mControlSize )
- {
- // Operations that need to be done if the size changes.
- mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
- LAYOUT |
- ALIGN |
- UPDATE_ACTUAL_SIZE |
- REORDER );
+ // Set the flag to redo the alignment operation.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
- mImpl->mControlSize = size;
+ mImpl->RequestRelayout();
}
+}
- // Make sure the model is up-to-date before layouting
- ProcessModifyEvents();
- UpdateModel( mImpl->mOperationsPending );
-
- Size layoutSize;
- bool updated = DoRelayout( mImpl->mControlSize,
- mImpl->mOperationsPending,
- layoutSize );
+LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
+{
+ return mImpl->mLayoutEngine.GetHorizontalAlignment();
+}
- // Do not re-do any operation until something changes.
- mImpl->mOperationsPending = NO_OPERATION;
+void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
+{
+ if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
+ {
+ // Set the alignment.
+ mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
- // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
- CalculateTextAlignment( size );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
- if( mImpl->mTextInput )
- {
- // Move the cursor, grab handle etc.
- updated = mImpl->mTextInput->ProcessInputEvents( mImpl->mControlSize, mImpl->mAlignmentOffset ) || updated;
+ mImpl->RequestRelayout();
}
+}
- return updated;
+LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
+{
+ return mImpl->mLayoutEngine.GetVerticalAlignment();
}
-void Controller::ProcessModifyEvents()
+void Controller::CalculateTextAlignment( const Size& size )
{
- std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
+ // Get the direction of the first character.
+ const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
- for( unsigned int i=0; i<events.size(); ++i )
+ Size actualSize = mImpl->mVisualModel->GetActualSize();
+ if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
+ {
+ // Get the line height of the default font.
+ actualSize.height = mImpl->GetDefaultFontLineHeight();
+ }
+
+ // 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( REPLACE_TEXT == events[0].type )
+ if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
{
- // A (single) replace event should come first, otherwise we wasted time processing NOOP events
- DALI_ASSERT_DEBUG( 0 == i && "Unexpected REPLACE event" );
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
+ }
+ else
+ {
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
+ }
+ }
- ReplaceTextEvent( events[0].text );
+ switch( horizontalAlignment )
+ {
+ case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
+ {
+ mImpl->mAlignmentOffset.x = 0.f;
+ break;
}
- else if( INSERT_TEXT == events[0].type )
+ case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
{
- InsertTextEvent( events[0].text );
+ mImpl->mAlignmentOffset.x = floorf( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
+ break;
}
- else if( DELETE_TEXT == events[0].type )
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
{
- DeleteTextEvent();
+ mImpl->mAlignmentOffset.x = size.width - actualSize.width;
+ break;
}
}
- // Discard temporary text
- events.clear();
-}
-
-void Controller::ReplaceTextEvent( const std::string& text )
-{
- // Reset buffers.
- mImpl->mLogicalModel->mText.Clear();
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ 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:
+ {
+ mImpl->mAlignmentOffset.y = floorf( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ {
+ mImpl->mAlignmentOffset.y = size.height - actualSize.height;
+ break;
+ }
+ }
+}
- // Convert text into UTF-32
- Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
- utf32Characters.Resize( text.size() );
+LayoutEngine& Controller::GetLayoutEngine()
+{
+ return mImpl->mLayoutEngine;
+}
- // This is a bit horrible but std::string returns a (signed) char*
- const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
+View& Controller::GetView()
+{
+ return mImpl->mView;
+}
- // Transform a text array encoded in utf8 into an array encoded in utf32.
- // It returns the actual number of characters.
- Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
- utf32Characters.Resize( characterCount );
+void Controller::KeyboardFocusGainEvent()
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
- // Reset the cursor position
- if( mImpl->mTextInput )
+ if( mImpl->mEventData )
{
- mImpl->mTextInput->mPrimaryCursorPosition = characterCount;
- // TODO - handle secondary cursor
- }
+ if( ( EventData::INACTIVE == mImpl->mEventData->mState ) ||
+ ( EventData::INTERRUPTED == mImpl->mEventData->mState ) )
+ {
+ mImpl->ChangeState( EventData::EDITING );
+ mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
+ }
- // The natural size needs to be re-calculated.
- mImpl->mRecalculateNaturalSize = true;
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ // Show alternative placeholder-text when editing
+ ShowPlaceholderText();
+ }
- // Apply modifications to the model
- mImpl->mOperationsPending = ALL_OPERATIONS;
- UpdateModel( ALL_OPERATIONS );
- mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- UPDATE_ACTUAL_SIZE |
- REORDER );
+ mImpl->RequestRelayout();
+ }
}
-void Controller::InsertTextEvent( const std::string& text )
+void Controller::KeyboardFocusLostEvent()
{
- 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();
- mImpl->mVisualModel->ClearCaches();
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
- // Convert text into UTF-32
- Vector<Character> utf32Characters;
- utf32Characters.Resize( text.size() );
+ if( mImpl->mEventData )
+ {
+ if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
+ {
+ mImpl->ChangeState( EventData::INACTIVE );
- // This is a bit horrible but std::string returns a (signed) char*
- const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
+ if( !mImpl->IsShowingRealText() )
+ {
+ // Revert to regular placeholder-text when not editing
+ ShowPlaceholderText();
+ }
+ }
+ }
+ mImpl->RequestRelayout();
+}
- // 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 );
+bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
- // Insert at current cursor position
- Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
- CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition;
+ bool textChanged( false );
- if( cursorIndex < modifyText.Count() )
- {
- modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.End() );
- }
- else
+ if( mImpl->mEventData &&
+ keyEvent.state == KeyEvent::Down )
{
- modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.End() );
- }
-
- // Advance the cursor position
- ++cursorIndex;
+ int keyCode = keyEvent.keyCode;
+ const std::string& keyString = keyEvent.keyPressed;
- // The natural size needs to be re-calculated.
- mImpl->mRecalculateNaturalSize = true;
+ // Pre-process to separate modifying events from non-modifying input events.
+ if( Dali::DALI_KEY_ESCAPE == keyCode )
+ {
+ // Escape key is a special case which causes focus loss
+ KeyboardFocusLostEvent();
+ }
+ else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
+ Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
+ Dali::DALI_KEY_CURSOR_UP == keyCode ||
+ Dali::DALI_KEY_CURSOR_DOWN == keyCode )
+ {
+ Event event( Event::CURSOR_KEY_EVENT );
+ event.p1.mInt = keyCode;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
+ else if( Dali::DALI_KEY_BACKSPACE == keyCode )
+ {
+ textChanged = BackspaceKeyEvent();
+ }
+ else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
+ {
+ mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
+ // Avoids calling the InsertText() method which can delete selected text
+ }
+ else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
+ IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
+ {
+ mImpl->ChangeState( EventData::INACTIVE );
+ // Menu/Home key behaviour does not allow edit mode to resume like Power key
+ // Avoids calling the InsertText() method which can delete selected text
+ }
+ else if( Dali::DALI_KEY_SHIFT_LEFT == keyCode )
+ {
+ // DALI_KEY_SHIFT_LEFT is the key code for the Left Shift. It's sent (by the imf?) when the predictive text is enabled
+ // and a character is typed after the type of a upper case latin character.
- // Apply modifications to the model; TODO - Optimize this
- mImpl->mOperationsPending = ALL_OPERATIONS;
- UpdateModel( ALL_OPERATIONS );
- mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- UPDATE_ACTUAL_SIZE |
- REORDER );
+ // Do nothing.
+ }
+ else
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
- // Queue a cursor reposition event; this must wait until after DoRelayout()
- mImpl->mTextInput->mUpdateCursorPosition = true;
-}
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
-void Controller::DeleteTextEvent()
-{
- DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "Unexpected InsertTextEvent" );
+ InsertText( keyString, COMMIT );
+ textChanged = true;
+ }
- // TODO - Optimize this
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ if ( ( mImpl->mEventData->mState != EventData::INTERRUPTED ) &&
+ ( mImpl->mEventData->mState != EventData::INACTIVE ) )
+ {
+ mImpl->ChangeState( EventData::EDITING );
+ }
- // Delte at current cursor position
- Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
- CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition;
+ mImpl->RequestRelayout();
+ }
- if( cursorIndex > 0 &&
- cursorIndex-1 < modifyText.Count() )
+ if( textChanged )
{
- modifyText.Remove( modifyText.Begin() + cursorIndex - 1 );
-
- // Cursor position retreat
- --cursorIndex;
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
}
- // 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<OperationsMask>( LAYOUT |
- ALIGN |
- UPDATE_ACTUAL_SIZE |
- REORDER );
-
- // Queue a cursor reposition event; this must wait until after DoRelayout()
- mImpl->mTextInput->mUpdateCursorPosition = true;
+ return false;
}
-void Controller::UpdateModel( OperationsMask operationsRequired )
+void Controller::InsertText( const std::string& text, Controller::InsertType type )
{
- // Calculate the operations to be done.
- const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
+ bool removedPrevious( false );
+ bool maxLengthReached( false );
+
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
+ this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
+ mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
- Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
+ // TODO: At the moment the underline runs are only for pre-edit.
+ mImpl->mVisualModel->mUnderlineRuns.Clear();
- const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters();
+ Vector<Character> utf32Characters;
+ Length characterCount( 0u );
- Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
- if( GET_LINE_BREAKS & operations )
+ // Remove the previous IMF pre-edit (predicitive text)
+ if( mImpl->mEventData &&
+ mImpl->mEventData->mPreEditFlag &&
+ 0 != mImpl->mEventData->mPreEditLength )
{
- // Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to
- // calculate the bidirectional info for each 'paragraph'.
- // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines
- // is not shaped together).
- lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK );
+ CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
+
+ removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
- SetLineBreakInfo( utf32Characters,
- lineBreakInfo );
+ mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
+ mImpl->mEventData->mPreEditLength = 0;
+ }
+ else
+ {
+ // Remove the previous Selection
+ removedPrevious = RemoveSelectedText();
}
- Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
- if( GET_WORD_BREAKS & operations )
+ if( !text.empty() )
{
- // 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 );
+ // Convert text into UTF-32
+ utf32Characters.Resize( text.size() );
- SetWordBreakInfo( utf32Characters,
- wordBreakInfo );
- }
+ // This is a bit horrible but std::string returns a (signed) char*
+ const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
- const bool getScripts = GET_SCRIPTS & operations;
- const bool validateFonts = VALIDATE_FONTS & operations;
+ // 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 );
- Vector<ScriptRun>& scripts = mImpl->mLogicalModel->mScriptRuns;
- Vector<FontRun>& validFonts = mImpl->mLogicalModel->mFontRuns;
+ DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
+ }
- if( getScripts || validateFonts )
+ if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
{
- // Validates the fonts assigned by the application or assigns default ones.
- // It makes sure all the characters are going to be rendered by the correct font.
- MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get();
-
- if( getScripts )
+ // The placeholder text is no longer needed
+ if( mImpl->IsShowingPlaceholderText() )
{
- // Retrieves the scripts used in the text.
- multilanguageSupport.SetScripts( utf32Characters,
- lineBreakInfo,
- scripts );
+ ResetText();
}
- if( validateFonts )
+ mImpl->ChangeState( EventData::EDITING );
+
+ // Handle the IMF (predicitive text) state changes
+ if( mImpl->mEventData )
{
- if( 0u == validFonts.Count() )
+ if( COMMIT == type )
{
- // 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 );
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
}
+ else // PRE_EDIT
+ {
+ if( !mImpl->mEventData->mPreEditFlag )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
- // 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 );
- }
- }
-
- Vector<Character> 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.
+ // Record the start of the pre-edit text
+ mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
+ }
- Length numberOfParagraphs = 0u;
+ mImpl->mEventData->mPreEditLength = utf32Characters.Count();
+ mImpl->mEventData->mPreEditFlag = true;
- const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin();
- for( Length index = 0u; index < numberOfCharacters; ++index )
- {
- if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) )
- {
- ++numberOfParagraphs;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
}
}
- Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
- bidirectionalInfo.Reserve( numberOfParagraphs );
+ const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
- // 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.
+ // Restrict new text to fit within Maximum characters setting
+ Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
+ maxLengthReached = ( characterCount > maxSizeOfNewText );
- textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters );
+ // Insert at current cursor position
+ CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
- // Only set the character directions if there is right to left characters.
- Vector<CharacterDirection>& directions = mImpl->mLogicalModel->mCharacterDirections;
- directions.Resize( numberOfCharacters );
+ Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
- GetCharactersDirection( bidirectionalInfo,
- directions );
+ if( cursorIndex < numberOfCharactersInModel )
+ {
+ modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
}
else
{
- // There is no right to left characters. Clear the directions vector.
- mImpl->mLogicalModel->mCharacterDirections.Clear();
+ 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( 0u == mImpl->mLogicalModel->mText.Count() &&
+ mImpl->IsPlaceholderAvailable() )
+ {
+ // Show place-holder if empty after removing the pre-edit text
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->ClearPreEditFlag();
+ }
+ else if( removedPrevious ||
+ 0 != utf32Characters.Count() )
+ {
+ // Queue an inserted event
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
+ }
- Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
- Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
- Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
- if( SHAPE_TEXT & operations )
+ if( maxLengthReached )
{
- const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
- // Shapes the text.
- ShapeText( textToShape,
- lineBreakInfo,
- scripts,
- validFonts,
- glyphs,
- glyphsToCharactersMap,
- charactersPerGlyph );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
- // Create the 'number of glyphs' per character and the glyph to character conversion tables.
- mImpl->mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
- mImpl->mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters );
+ mImpl->ResetImfManager();
+
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.MaxLengthReached();
}
+}
- const Length numberOfGlyphs = glyphs.Count();
+bool Controller::RemoveSelectedText()
+{
+ bool textRemoved( false );
- if( GET_GLYPH_METRICS & operations )
+ if( EventData::SELECTING == mImpl->mEventData->mState )
{
- mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs );
+ std::string removedString;
+ mImpl->RetrieveSelection( removedString, true );
+
+ if( !removedString.empty() )
+ {
+ textRemoved = true;
+ mImpl->ChangeState( EventData::EDITING );
+ }
}
+
+ return textRemoved;
}
-bool Controller::DoRelayout( const Size& size,
- OperationsMask operationsRequired,
- Size& layoutSize )
+void Controller::TapEvent( unsigned int tapCount, float x, float y )
{
- bool viewUpdated( false );
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
- // Calculate the operations to be done.
- const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
-
- if( LAYOUT & operations )
+ if( NULL != 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.
+ if( 1u == tapCount )
+ {
+ // This is to avoid unnecessary relayouts when tapping an empty text-field
+ bool relayoutNeeded( false );
+
+ if( mImpl->IsShowingRealText() &&
+ EventData::EDITING == mImpl->mEventData->mState )
+ {
+ // Show grab handle on second tap
+ mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
+ relayoutNeeded = true;
+ }
+ else if( EventData::EDITING != mImpl->mEventData->mState &&
+ EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
+ {
+ if( mImpl->IsShowingPlaceholderText() && !mImpl->IsFocusedPlaceholderAvailable() )
+ {
+ // Hide placeholder text
+ ResetText();
+ }
+ // Show cursor on first tap
+ mImpl->ChangeState( EventData::EDITING );
+ relayoutNeeded = true;
+ }
+ else if( mImpl->IsShowingRealText() )
+ {
+ // Move the cursor
+ relayoutNeeded = true;
+ }
- Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
+ // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
+ if( relayoutNeeded )
+ {
+ Event event( Event::TAP_EVENT );
+ event.p1.mUint = tapCount;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+ mImpl->mEventData->mEventQueue.push_back( event );
- if( 0u == numberOfGlyphs )
+ mImpl->RequestRelayout();
+ }
+ }
+ else if( 2u == tapCount )
{
- // Nothing else to do if there is no glyphs.
- return true;
+ if( mImpl->mEventData->mSelectionEnabled &&
+ mImpl->IsShowingRealText() )
+ {
+ SelectEvent( x, y, false );
+ }
}
+ }
- Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
- Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
- Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
- Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
- Vector<Length>& 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<LineRun>& lines = mImpl->mVisualModel->mLines;
+ // Reset keyboard as tap event has occurred.
+ mImpl->ResetImfManager();
+}
- // Delete any previous laid out lines before setting the new ones.
- lines.Clear();
+void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
- // The capacity of the bidirectional paragraph info is the number of paragraphs.
- lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
+ if( mImpl->mEventData )
+ {
+ Event event( Event::PAN_EVENT );
+ event.p1.mInt = state;
+ event.p2.mFloat = displacement.x;
+ event.p3.mFloat = displacement.y;
+ mImpl->mEventData->mEventQueue.push_back( event );
- // Resize the vector of positions to have the same size than the vector of glyphs.
- Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
- glyphPositions.Resize( numberOfGlyphs );
+ mImpl->RequestRelayout();
+ }
+}
- // Update the visual model.
- viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
- glyphPositions,
- lines,
- layoutSize );
+void Controller::LongPressEvent( Gesture::State state, float x, float y )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected LongPressEvent" );
- if( viewUpdated )
+ if( state == Gesture::Started &&
+ mImpl->mEventData )
+ {
+ if( ! mImpl->IsShowingRealText() )
{
- // Reorder the lines
- if( REORDER & operations )
+ Event event( Event::LONG_PRESS_EVENT );
+ event.p1.mInt = state;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ mImpl->RequestRelayout();
+ }
+ else
+ {
+ // The 1st long-press on inactive text-field is treated as tap
+ if( EventData::INACTIVE == mImpl->mEventData->mState )
{
- Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
+ mImpl->ChangeState( EventData::EDITING );
- // Check first if there are paragraphs with bidirectional info.
- if( 0u != bidirectionalInfo.Count() )
- {
- // Get the lines
- const Length numberOfLines = mImpl->mVisualModel->GetNumberOfLines();
+ Event event( Event::TAP_EVENT );
+ event.p1.mUint = 1;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+ mImpl->mEventData->mEventQueue.push_back( event );
- // Reorder the lines.
- Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
- lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
- ReorderLines( bidirectionalInfo,
- lines,
- lineBidirectionalInfoRuns );
+ mImpl->RequestRelayout();
+ }
+ else
+ {
+ // Reset the imf manger to commit the pre-edit before selecting the text.
+ mImpl->ResetImfManager();
- // Set the bidirectional info into the model.
- const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
- mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
- numberOfBidirectionalInfoRuns );
+ SelectEvent( x, y, false );
+ }
+ }
+ }
+}
- // Set the bidirectional info per line into the layout parameters.
- layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
- layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
+void Controller::SelectEvent( float x, float y, bool selectAll )
+{
+ if( mImpl->mEventData )
+ {
+ mImpl->ChangeState( EventData::SELECTING );
- // Get the character to glyph conversion table and set into the layout.
- layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
+ if( selectAll )
+ {
+ Event event( Event::SELECT_ALL );
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
+ else
+ {
+ Event event( Event::SELECT );
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
- // Get the glyphs per character table and set into the layout.
- layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
+ mImpl->RequestRelayout();
+ }
+}
- // Re-layout the text. Reorder those lines with right to left characters.
- mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
- glyphPositions );
+void Controller::GetTargetSize( Vector2& targetSize )
+{
+ targetSize = mImpl->mVisualModel->mControlSize;
+}
- // Free the allocated memory used to store the conversion table in the bidirectional line info run.
- for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
- endIt = lineBidirectionalInfoRuns.End();
- it != endIt;
- ++it )
- {
- BidirectionalLineInfoRun& bidiLineInfo = *it;
+void Controller::AddDecoration( Actor& actor, bool needsClipping )
+{
+ mImpl->mControlInterface.AddDecoration( actor, needsClipping );
+}
- free( bidiLineInfo.visualToLogicalMap );
- }
- }
- } // REORDER
+void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
- if( ALIGN & operations )
+ if( mImpl->mEventData )
+ {
+ switch( handleType )
+ {
+ case GRAB_HANDLE:
{
- mImpl->mLayoutEngine.Align( layoutParameters,
- layoutSize,
- lines,
- glyphPositions );
+ 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;
- // Sets the actual size.
- if( UPDATE_ACTUAL_SIZE & operations )
+ mImpl->mEventData->mEventQueue.push_back( event );
+ break;
+ }
+ case RIGHT_SELECTION_HANDLE:
{
- mImpl->mVisualModel->SetActualSize( layoutSize );
+ 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;
}
- } // view updated
- }
- else
- {
- layoutSize = mImpl->mVisualModel->GetActualSize();
+ case LEFT_SELECTION_HANDLE_MARKER:
+ case RIGHT_SELECTION_HANDLE_MARKER:
+ {
+ // Markers do not move the handles.
+ break;
+ }
+ case HANDLE_TYPE_COUNT:
+ {
+ DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
+ }
+ }
+
+ mImpl->RequestRelayout();
}
+}
- return viewUpdated;
+void Controller::PasteText( const std::string& stringToPaste )
+{
+ InsertText( stringToPaste, Text::Controller::COMMIT );
+ mImpl->ChangeState( EventData::EDITING );
+ mImpl->RequestRelayout();
+
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
}
-void Controller::CalculateTextAlignment( const Size& size )
+void Controller::PasteClipboardItemEvent()
{
- // Get the direction of the first character.
- const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
+ // Retrieve the clipboard contents first
+ ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
+ std::string stringToPaste( notifier.GetContent() );
- const Size& actualSize = mImpl->mVisualModel->GetActualSize();
+ // Commit the current pre-edit text; the contents of the clipboard should be appended
+ mImpl->ResetImfManager();
- // 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 ) )
+ // Paste
+ PasteText( stringToPaste );
+}
+
+void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
+{
+ if( NULL == mImpl->mEventData )
{
- if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
+ return;
+ }
+
+ switch( button )
+ {
+ case Toolkit::TextSelectionPopup::CUT:
{
- horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
+ mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+
+ // This is to reset the virtual keyboard to Upper-case
+ if( 0u == mImpl->mLogicalModel->mText.Count() )
+ {
+ NotifyImfManager();
+ }
+
+ if( 0u != mImpl->mLogicalModel->mText.Count() ||
+ !mImpl->IsPlaceholderAvailable() )
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ else
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ mImpl->RequestRelayout();
+ mImpl->mControlInterface.TextChanged();
+ break;
}
- else
+ case Toolkit::TextSelectionPopup::COPY:
{
- horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
+ mImpl->SendSelectionToClipboard( false ); // Text not modified
+ mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
+ break;
}
- }
+ case Toolkit::TextSelectionPopup::PASTE:
+ {
+ std::string stringToPaste("");
+ mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
+ PasteText( stringToPaste );
+ break;
+ }
+ case Toolkit::TextSelectionPopup::SELECT:
+ {
+ const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
- switch( horizontalAlignment )
- {
- case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
+ if( mImpl->mEventData->mSelectionEnabled )
+ {
+ // Creates a SELECT event.
+ SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
+ }
+ break;
+ }
+ case Toolkit::TextSelectionPopup::SELECT_ALL:
{
- mImpl->mAlignmentOffset.x = 0.f;
+ // Creates a SELECT_ALL event
+ SelectEvent( 0.f, 0.f, true );
break;
}
- case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
+ case Toolkit::TextSelectionPopup::CLIPBOARD:
{
- const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
- mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
+ mImpl->ShowClipboard();
break;
}
- case LayoutEngine::HORIZONTAL_ALIGN_END:
+ case Toolkit::TextSelectionPopup::NONE:
{
- mImpl->mAlignmentOffset.x = size.width - actualSize.width;
+ // Nothing to do.
break;
}
}
+}
- const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
- switch( verticalAlignment )
+ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
+{
+ bool update = false;
+ bool requestRelayout = false;
+
+ std::string text;
+ unsigned int cursorPosition( 0 );
+
+ switch ( imfEvent.eventName )
{
- case LayoutEngine::VERTICAL_ALIGN_TOP:
+ case ImfManager::COMMIT:
{
- mImpl->mAlignmentOffset.y = 0.f;
+ InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
+ update=true;
+ requestRelayout = true;
break;
}
- case LayoutEngine::VERTICAL_ALIGN_CENTER:
+ case ImfManager::PREEDIT:
{
- const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
- mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
+ InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
+ update = true;
+ requestRelayout = true;
break;
}
- case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ case ImfManager::DELETESURROUNDING:
{
- mImpl->mAlignmentOffset.y = size.height - actualSize.height;
+ update = RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
+
+ if( update )
+ {
+ if( 0u != mImpl->mLogicalModel->mText.Count() ||
+ !mImpl->IsPlaceholderAvailable() )
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ else
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ }
+ requestRelayout = true;
break;
}
+ case ImfManager::GETSURROUNDING:
+ {
+ GetText( text );
+ cursorPosition = GetLogicalCursorPosition();
+
+ imfManager.SetSurroundingText( text );
+ imfManager.SetCursorPosition( cursorPosition );
+ break;
+ }
+ case ImfManager::VOID:
+ {
+ // do nothing
+ break;
+ }
+ } // end switch
+
+ if( ImfManager::GETSURROUNDING != imfEvent.eventName )
+ {
+ GetText( text );
+ cursorPosition = GetLogicalCursorPosition();
}
-}
-View& Controller::GetView()
-{
- return mImpl->mView;
-}
+ if( requestRelayout )
+ {
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->RequestRelayout();
-LayoutEngine& Controller::GetLayoutEngine()
-{
- return mImpl->mLayoutEngine;
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
+ }
+
+ ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
+
+ return callbackData;
}
-void Controller::RequestRelayout()
+Controller::~Controller()
{
- mImpl->mControlInterface.RequestTextRelayout();
+ delete mImpl;
}
-void Controller::KeyboardFocusGainEvent()
+bool Controller::BackspaceKeyEvent()
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusGainEvent" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
- if( mImpl->mTextInput )
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+
+ bool removed( false );
+
+ if( EventData::SELECTING == mImpl->mEventData->mState )
+ {
+ removed = RemoveSelectedText();
+ }
+ else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
{
- TextInput::Event event( TextInput::KEYBOARD_FOCUS_GAIN_EVENT );
- mImpl->mTextInput->mEventQueue.push_back( event );
+ // Remove the character before the current cursor position
+ removed = RemoveText( -1, 1 );
+ }
+
+ if( removed )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE RemovedText\n", this );
+ // Notifiy the IMF manager after text changed
+ // Automatic Upper-case and restarting prediction on an existing word require this.
+ NotifyImfManager();
- RequestRelayout();
+ if( 0u != mImpl->mLogicalModel->mText.Count() ||
+ !mImpl->IsPlaceholderAvailable() )
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ else
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
}
+
+ return removed;
}
-void Controller::KeyboardFocusLostEvent()
+void Controller::NotifyImfManager()
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusLostEvent" );
-
- if( mImpl->mTextInput )
+ if( mImpl->mEventData )
{
- TextInput::Event event( TextInput::KEYBOARD_FOCUS_LOST_EVENT );
- mImpl->mTextInput->mEventQueue.push_back( event );
+ if( mImpl->mEventData->mImfManager )
+ {
+ // Notifying IMF of a cursor change triggers a surrounding text request so updating it now.
+ std::string text;
+ GetText( text );
+ mImpl->mEventData->mImfManager.SetSurroundingText( text );
- RequestRelayout();
+ mImpl->mEventData->mImfManager.SetCursorPosition( GetLogicalCursorPosition() );
+ mImpl->mEventData->mImfManager.NotifyCursorPosition();
+ }
}
}
-bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
+void Controller::ShowPlaceholderText()
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyEvent" );
-
- if( mImpl->mTextInput &&
- keyEvent.state == KeyEvent::Down )
+ if( mImpl->IsPlaceholderAvailable() )
{
- int keyCode = keyEvent.keyCode;
- const std::string& keyString = keyEvent.keyPressed;
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
- // 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 )
+ mImpl->mEventData->mIsShowingPlaceholderText = true;
+
+ // Disable handles when showing place-holder text
+ mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+
+ const char* text( NULL );
+ size_t size( 0 );
+
+ // TODO - Switch placeholder text styles when changing state
+ if( EventData::INACTIVE != mImpl->mEventData->mState &&
+ 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
{
- // Queue a delete event
- ModifyEvent event;
- event.type = DELETE_TEXT;
- mImpl->mModifyEvents.push_back( event );
+ text = mImpl->mEventData->mPlaceholderTextActive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextActive.size();
}
- else if( !keyString.empty() )
+ else
{
- // Queue an insert event
- ModifyEvent event;
- event.type = INSERT_TEXT;
- event.text = keyString;
- mImpl->mModifyEvents.push_back( event );
+ text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextInactive.size();
}
- mImpl->mTextInput->ChangeState( TextInput::EDITING ); // todo Confirm this is the best place to change the state of
+ // Reset model for showing placeholder.
+ mImpl->mLogicalModel->mText.Clear();
+ ClearModelData();
+ mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
- RequestRelayout();
- }
-
- return false;
-}
+ // Convert text into UTF-32
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
+ utf32Characters.Resize( size );
-void Controller::TapEvent( unsigned int tapCount, float x, float y )
-{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected TapEvent" );
+ // This is a bit horrible but std::string returns a (signed) char*
+ const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
- if( mImpl->mTextInput )
- {
- TextInput::Event event( TextInput::TAP_EVENT );
- event.p1.mUint = tapCount;
- event.p2.mFloat = x;
- event.p3.mFloat = y;
- mImpl->mTextInput->mEventQueue.push_back( event );
+ // 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 );
- RequestRelayout();
- }
-}
+ // Reset the cursor position
+ mImpl->mEventData->mPrimaryCursorPosition = 0;
-void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
-{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected PanEvent" );
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
- 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 );
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
- RequestRelayout();
+ // Update the rest of the model during size negotiation
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
}
}
-void Controller::GrabHandleEvent( GrabHandleState state, float x, float y )
+void Controller::ClearModelData()
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected GrabHandleEvent" );
-
- if( mImpl->mTextInput )
- {
- 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 );
-
- RequestRelayout();
- }
+ // 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();
}
-Controller::~Controller()
+void Controller::ClearFontData()
{
- delete mImpl;
+ 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 )