// CLASS HEADER
#include <dali-toolkit/internal/text/text-controller.h>
+// EXTERNAL INCLUDES
+#include <limits>
+#include <iostream>
+#include <dali/public-api/adaptor-framework/key.h>
+#include <dali/integration-api/debug.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.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-controller-impl.h>
+#include <dali-toolkit/internal/text/text-io.h>
#include <dali-toolkit/internal/text/text-view.h>
-#include <dali-toolkit/internal/text/visual-model.h>
-// EXTERNAL INCLUDES
-#include <limits>
-#include <vector>
-#include <dali/public-api/text-abstraction/font-client.h>
+namespace
+{
+
+#if defined(DEBUG_ENABLED)
+ Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
+#endif
+
+const float MAX_FLOAT = std::numeric_limits<float>::max();
-using std::vector;
+const std::string EMPTY_STRING("");
+
+} // namespace
namespace Dali
{
namespace Text
{
-struct Controller::TextInput
+ControllerPtr Controller::New( ControlInterface& controlInterface )
{
- // Used to queue input events until DoRelayout()
- enum EventType
- {
- KEYBOARD_FOCUS_GAIN_EVENT,
- KEYBOARD_FOCUS_LOST_EVENT,
- TAP_EVENT,
- GRAB_HANDLE_EVENT
- };
+ return ControllerPtr( new Controller( controlInterface ) );
+}
- union Param
+void Controller::EnableTextInput( DecoratorPtr decorator )
+{
+ if( !mImpl->mEventData )
{
- int mInt;
- unsigned int mUint;
- float mFloat;
- };
+ mImpl->mEventData = new EventData( decorator );
+ }
+}
+
+void Controller::SetText( const std::string& text )
+{
+ // Cancel previously queued inserts etc.
+ mImpl->mModifyEvents.clear();
- struct Event
+ // Remove the previously set text
+ ResetText();
+
+ if( ! text.empty() )
{
- Event( EventType eventType )
- : type( eventType )
+ // 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() );
+
+ // Transform a text array encoded in utf8 into an array encoded in utf32.
+ // It returns the actual number of characters.
+ Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
+ utf32Characters.Resize( characterCount );
+
+ DALI_ASSERT_DEBUG( text.size() >= 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() );
+
+ // Reset the cursor position
+ if( mImpl->mEventData )
{
- p1.mInt = 0;
- p2.mInt = 0;
+ mImpl->mEventData->mPrimaryCursorPosition = characterCount;
}
- EventType type;
- Param p1;
- Param p2;
- Param p3;
- };
-
- enum State
+ // Update the rest of the model during size negotiation
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+ }
+ else
{
- INACTIVE,
- SELECTING,
- EDITING
- };
+ ShowPlaceholderText();
+ }
- TextInput( LogicalModelPtr logicalModel,
- VisualModelPtr visualModel,
- DecoratorPtr decorator )
- : mLogicalModel( logicalModel ),
- mVisualModel( visualModel ),
- mDecorator( decorator ),
- mState( INACTIVE )
+ if( mImpl->mEventData )
{
+ // Cancel previously queued events
+ mImpl->mEventData->mEventQueue.clear();
}
- /**
- * @brief Helper to move the cursor, grab handle etc.
- */
- bool ProcessTouchEvents()
+ // Reset keyboard as text changed
+ mImpl->ResetImfManager();
+}
+
+void Controller::GetText( std::string& text ) const
+{
+ if( ! mImpl->IsShowingPlaceholderText() )
{
- mDecoratorUpdated = false;
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
- if( mDecorator )
+ if( 0u != utf32Characters.Count() )
{
- 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 TAP_EVENT:
- {
- OnTapEvent( *iter );
- break;
- }
- case GRAB_HANDLE_EVENT:
- {
- OnGrabHandleEvent( *iter );
- break;
- }
- }
- }
+ Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
}
-
- mEventQueue.clear();
-
- return mDecoratorUpdated;
}
-
- void OnKeyboardFocus( bool hasFocus )
+ else
{
- // TODO
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
}
+}
- void OnTapEvent( const Event& event )
+unsigned int Controller::GetLogicalCursorPosition() const
+{
+ if( mImpl->mEventData )
{
- if( 1u == event.p1.mUint )
- {
- mState = TextInput::EDITING;
- mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- mDecorator->StartCursorBlink();
- mDecorator->SetGrabHandleActive( true );
+ return mImpl->mEventData->mPrimaryCursorPosition;
+ }
- float xPosition = event.p2.mFloat;
- float yPosition = event.p3.mFloat;
- float height(0.0f);
- GetClosestCursorPosition( xPosition, yPosition, height );
- mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height );
+ return 0u;
+}
- mDecoratorUpdated = true;
+void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text )
+{
+ if( mImpl->mEventData )
+ {
+ if( PLACEHOLDER_TYPE_INACTIVE == type )
+ {
+ mImpl->mEventData->mPlaceholderTextInactive = text;
+ }
+ else
+ {
+ mImpl->mEventData->mPlaceholderTextActive = text;
}
- else if( 2u == event.p1.mUint )
+
+ // Update placeholder if there is no text
+ if( mImpl->IsShowingPlaceholderText() ||
+ 0u == mImpl->mLogicalModel->mText.Count() )
{
- mState = TextInput::SELECTING;
- mDecorator->SetGrabHandleActive( false );
- mDecorator->SetSelectionActive( true );
- mDecoratorUpdated = true;
+ ShowPlaceholderText();
}
}
+}
- void OnGrabHandleEvent( const Event& event )
+void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const
+{
+ if( mImpl->mEventData )
{
- unsigned int state = event.p1.mUint;
-
- if( GRAB_HANDLE_PRESSED == state )
+ if( PLACEHOLDER_TYPE_INACTIVE == type )
{
- float xPosition = event.p2.mFloat;
- float yPosition = event.p3.mFloat;
- float height(0.0f);
-
- GetClosestCursorPosition( xPosition, yPosition, height );
-
- mDecorator->SetPosition( PRIMARY_CURSOR, xPosition, yPosition, height );
- mDecoratorUpdated = true;
+ text = mImpl->mEventData->mPlaceholderTextInactive;
+ }
+ else
+ {
+ text = mImpl->mEventData->mPlaceholderTextActive;
}
}
+}
- void GetClosestCursorPosition( float& x, float& y, float& height )
+void Controller::SetMaximumNumberOfCharacters( int maxCharacters )
+{
+ if ( maxCharacters >= 0 )
{
- // TODO - Look at LineRuns first
+ mImpl->mMaximumNumberOfCharacters = maxCharacters;
+ }
+}
- Text::Length numberOfGlyphs = mVisualModel->GetNumberOfGlyphs();
- if( 0 == numberOfGlyphs )
- {
- return;
- }
+int Controller::GetMaximumNumberOfCharacters()
+{
+ return mImpl->mMaximumNumberOfCharacters;
+}
- Vector<GlyphInfo> glyphs;
- glyphs.Resize( numberOfGlyphs );
- mVisualModel->GetGlyphs( &glyphs[0], 0, numberOfGlyphs );
+void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
+ }
- std::vector<Vector2> positions;
- positions.resize( numberOfGlyphs );
- mVisualModel->GetGlyphPositions( &positions[0], 0, numberOfGlyphs );
+ mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
- unsigned int closestGlyph = 0;
- float closestDistance = std::numeric_limits<float>::max();
+ // Clear the font-specific data
+ ClearFontData();
- for( unsigned int i=0; i<glyphs.Count(); ++i )
- {
- float glyphX = positions[i].x + glyphs[i].width*0.5f;
- float glyphY = positions[i].y + glyphs[i].height*0.5f;
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- float distanceToGlyph = fabsf( glyphX - x ) + fabsf( glyphY - y );
+ mImpl->RequestRelayout();
+}
- if( distanceToGlyph < closestDistance )
- {
- closestDistance = distanceToGlyph;
- closestGlyph = i;
- }
- }
+const std::string& Controller::GetDefaultFontFamily() const
+{
+ if( mImpl->mFontDefaults )
+ {
+ return mImpl->mFontDefaults->mDefaultFontFamily;
+ }
- // TODO - Consider RTL languages
- x = positions[closestGlyph].x + glyphs[closestGlyph].width;
- y = 0.0f;
+ return EMPTY_STRING;
+}
- FontMetrics metrics;
- TextAbstraction::FontClient::Get().GetFontMetrics( glyphs[closestGlyph].fontId, metrics );
- height = metrics.height; // TODO - Fix for multi-line
+void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
}
- LogicalModelPtr mLogicalModel;
- VisualModelPtr mVisualModel;
- DecoratorPtr mDecorator;
+ mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
- State mState;
+ // Clear the font-specific data
+ ClearFontData();
- /**
- * 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.
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- bool mDecoratorUpdated;
-};
+ mImpl->RequestRelayout();
+}
-struct Controller::FontDefaults
+const std::string& Controller::GetDefaultFontStyle() const
{
- FontDefaults()
- : mDefaultPointSize(0.0f),
- mFontId(0u)
+ if( mImpl->mFontDefaults )
{
+ return mImpl->mFontDefaults->mDefaultFontStyle;
}
- FontId GetFontId( TextAbstraction::FontClient& fontClient )
- {
- if( !mFontId )
- {
- Dali::TextAbstraction::PointSize26Dot6 pointSize = mDefaultPointSize*64;
- mFontId = fontClient.GetFontId( mDefaultFontFamily, mDefaultFontStyle, pointSize );
- }
+ return EMPTY_STRING;
+}
- return mFontId;
+void Controller::SetDefaultPointSize( float pointSize )
+{
+ if( !mImpl->mFontDefaults )
+ {
+ mImpl->mFontDefaults = new FontDefaults();
}
- std::string mDefaultFontFamily;
- std::string mDefaultFontStyle;
- float mDefaultPointSize;
- FontId mFontId;
-};
+ mImpl->mFontDefaults->mDefaultPointSize = pointSize;
-struct Controller::Impl
-{
- Impl( ControlInterface& controlInterface )
- : mControlInterface( controlInterface ),
- mNewText(),
- mOperations( NO_OPERATION ),
- mControlSize(),
- mFontDefaults( NULL ),
- mTextInput( NULL )
- {
- mLogicalModel = LogicalModel::New();
- mVisualModel = VisualModel::New();
+ // Clear the font-specific data
+ ClearFontData();
- mView.SetVisualModel( mVisualModel );
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
- mFontClient = TextAbstraction::FontClient::Get();
- }
+ mImpl->RequestRelayout();
+}
- ~Impl()
+float Controller::GetDefaultPointSize() const
+{
+ if( mImpl->mFontDefaults )
{
- delete mTextInput;
+ return mImpl->mFontDefaults->mDefaultPointSize;
}
- ControlInterface& mControlInterface;
+ return 0.0f;
+}
- std::string mNewText;
+void Controller::SetTextColor( const Vector4& textColor )
+{
+ mImpl->mTextColor = textColor;
- LogicalModelPtr mLogicalModel;
- VisualModelPtr mVisualModel;
+ if( ! mImpl->IsShowingPlaceholderText() )
+ {
+ mImpl->mVisualModel->SetTextColor( textColor );
+ }
+}
- View mView;
+const Vector4& Controller::GetTextColor() const
+{
+ return mImpl->mTextColor;
+}
- LayoutEngine mLayoutEngine;
+bool Controller::RemoveText( int cursorOffset, int numberOfChars )
+{
+ bool removed( false );
- TextAbstraction::FontClient mFontClient;
+ 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 );
- OperationsMask mOperations;
+ if( ! mImpl->IsShowingPlaceholderText() )
+ {
+ // Delete at current cursor position
+ Vector<Character>& currentText = mImpl->mLogicalModel->mText;
+ CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
- Size mControlSize;
+ CharacterIndex cursorIndex = oldCursorIndex;
- // Avoid allocating this when the user does not specify a font
- FontDefaults* mFontDefaults;
+ // Validate the cursor position & number of characters
+ if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex )
+ {
+ cursorIndex = oldCursorIndex + cursorOffset;
+ }
- // Avoid allocating everything for text input until EnableTextInput()
- Controller::TextInput* mTextInput;
-};
+ if( (cursorIndex + numberOfChars) > currentText.Count() )
+ {
+ numberOfChars = currentText.Count() - cursorIndex;
+ }
-ControllerPtr Controller::New( ControlInterface& controlInterface )
-{
- return ControllerPtr( new Controller( controlInterface ) );
-}
+ if( cursorIndex >= 0 &&
+ (cursorIndex + numberOfChars) <= currentText.Count() )
+ {
+ Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
+ Vector<Character>::Iterator last = first + numberOfChars;
-void Controller::SetText( const std::string& text )
-{
- // Keep until size negotiation
- mImpl->mNewText = text;
- mImpl->mOperations = ALL_OPERATIONS;
+ currentText.Erase( first, last );
- if( mImpl->mTextInput )
- {
- // Cancel previously queued events
- mImpl->mTextInput->mEventQueue.clear();
+ // Cursor position retreat
+ oldCursorIndex = cursorIndex;
- // TODO - Hide selection decorations
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
+ removed = true;
+ }
}
+
+ return removed;
}
-void Controller::GetText( std::string& text ) const
+void Controller::SetPlaceholderTextColor( const Vector4& textColor )
{
- if( !mImpl->mNewText.empty() )
+ if( mImpl->mEventData )
{
- text = mImpl->mNewText;
+ mImpl->mEventData->mPlaceholderTextColor = textColor;
}
- else
+
+ if( mImpl->IsShowingPlaceholderText() )
{
- // TODO - Convert from UTF-32
+ mImpl->mVisualModel->SetTextColor( textColor );
}
}
-void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
+const Vector4& Controller::GetPlaceholderTextColor() const
{
- if( !mImpl->mFontDefaults )
+ if( mImpl->mEventData )
{
- mImpl->mFontDefaults = new Controller::FontDefaults();
+ return mImpl->mEventData->mPlaceholderTextColor;
}
- mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperations = ALL_OPERATIONS;
+ return Color::BLACK;
}
-const std::string& Controller::GetDefaultFontFamily() const
+void Controller::SetShadowOffset( const Vector2& shadowOffset )
{
- if( mImpl->mFontDefaults )
- {
- return mImpl->mFontDefaults->mDefaultFontFamily;
- }
+ mImpl->mVisualModel->SetShadowOffset( shadowOffset );
+}
- return Dali::String::EMPTY;
+const Vector2& Controller::GetShadowOffset() const
+{
+ return mImpl->mVisualModel->GetShadowOffset();
}
-void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
+void Controller::SetShadowColor( const Vector4& shadowColor )
{
- if( !mImpl->mFontDefaults )
+ mImpl->mVisualModel->SetShadowColor( shadowColor );
+}
+
+const Vector4& Controller::GetShadowColor() const
+{
+ return mImpl->mVisualModel->GetShadowColor();
+}
+
+void Controller::SetUnderlineColor( const Vector4& color )
+{
+ mImpl->mVisualModel->SetUnderlineColor( color );
+}
+
+const Vector4& Controller::GetUnderlineColor() const
+{
+ return mImpl->mVisualModel->GetUnderlineColor();
+}
+
+void Controller::SetUnderlineEnabled( bool enabled )
+{
+ mImpl->mVisualModel->SetUnderlineEnabled( enabled );
+}
+
+bool Controller::IsUnderlineEnabled() const
+{
+ return mImpl->mVisualModel->IsUnderlineEnabled();
+}
+
+void Controller::SetUnderlineHeight( float height )
+{
+ mImpl->mVisualModel->SetUnderlineHeight( height );
+}
+
+float Controller::GetUnderlineHeight() const
+{
+ return mImpl->mVisualModel->GetUnderlineHeight();
+}
+
+void Controller::SetEnableCursorBlink( bool enable )
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
+
+ if( mImpl->mEventData )
{
- mImpl->mFontDefaults = new Controller::FontDefaults();
- }
+ mImpl->mEventData->mCursorBlinkEnabled = enable;
- mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperations = ALL_OPERATIONS;
+ if( !enable &&
+ mImpl->mEventData->mDecorator )
+ {
+ mImpl->mEventData->mDecorator->StopCursorBlink();
+ }
+ }
}
-const std::string& Controller::GetDefaultFontStyle() const
+bool Controller::GetEnableCursorBlink() const
{
- if( mImpl->mFontDefaults )
+ if( mImpl->mEventData )
{
- return mImpl->mFontDefaults->mDefaultFontStyle;
+ return mImpl->mEventData->mCursorBlinkEnabled;
}
- return Dali::String::EMPTY;
+ return false;
}
-void Controller::SetDefaultPointSize( float pointSize )
+const Vector2& Controller::GetScrollPosition() const
{
- if( !mImpl->mFontDefaults )
+ if( mImpl->mEventData )
{
- mImpl->mFontDefaults = new Controller::FontDefaults();
+ return mImpl->mEventData->mScrollPosition;
}
- mImpl->mFontDefaults->mDefaultPointSize = pointSize;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperations = ALL_OPERATIONS;
+ return Vector2::ZERO;
}
-float Controller::GetDefaultPointSize() const
+const Vector2& Controller::GetAlignmentOffset() const
{
- if( mImpl->mFontDefaults )
+ return mImpl->mAlignmentOffset;
+}
+
+Vector3 Controller::GetNaturalSize()
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
+ Vector3 naturalSize;
+
+ // Make sure the model is up-to-date before layouting
+ ProcessModifyEvents();
+
+ if( mImpl->mRecalculateNaturalSize )
{
- return mImpl->mFontDefaults->mDefaultPointSize;
+ // 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 );
+
+ DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
+ static_cast<OperationsMask>( onlyOnceOperations |
+ sizeOperations ),
+ naturalSize.GetVectorXY() );
+
+ // Do not do again the only once operations.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
+
+ // Do the size related operations again.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
+
+ // Stores the natural size to avoid recalculate it again
+ // unless the text/style changes.
+ mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
+
+ mImpl->mRecalculateNaturalSize = false;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
+ }
+ else
+ {
+ naturalSize = mImpl->mVisualModel->GetNaturalSize();
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
}
- return 0.0f;
+ return naturalSize;
}
-void Controller::EnableTextInput( DecoratorPtr decorator )
+float Controller::GetHeightForWidth( float width )
{
- if( !mImpl->mTextInput )
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width );
+ // Make sure the model is up-to-date before layouting
+ ProcessModifyEvents();
+
+ Size layoutSize;
+ if( width != mImpl->mControlSize.width )
+ {
+ // 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 );
+
+ DoRelayout( Size( width, MAX_FLOAT ),
+ static_cast<OperationsMask>( onlyOnceOperations |
+ sizeOperations ),
+ layoutSize );
+
+ // Do not do again the only once operations.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
+
+ // 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 );
+ }
+ else
{
- mImpl->mTextInput = new TextInput( mImpl->mLogicalModel, mImpl->mVisualModel, decorator );
+ layoutSize = mImpl->mVisualModel->GetActualSize();
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
}
+
+ return layoutSize.height;
}
-bool Controller::Relayout( const Vector2& size )
+bool Controller::Relayout( const Size& size )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height );
+
if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
{
+ bool glyphsRemoved( false );
+ if( 0u != mImpl->mVisualModel->GetNumberOfGlyphPositions() )
+ {
+ mImpl->mVisualModel->SetGlyphPositions( NULL, 0u );
+ glyphsRemoved = true;
+ }
// Not worth to relayout if width or height is equal to zero.
- return false;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
+ return glyphsRemoved;
}
- bool updated = false;
-
if( size != mImpl->mControlSize )
{
- updated = DoRelayout( size, mImpl->mOperations );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mControlSize.width, mImpl->mControlSize.height );
- // Do not re-do any operation until something changes.
- mImpl->mOperations = NO_OPERATION;
+ // Operations that need to be done if the size changes.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
+ LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
mImpl->mControlSize = size;
}
- if( mImpl->mTextInput )
+ // Make sure the model is up-to-date before layouting
+ ProcessModifyEvents();
+ mImpl->UpdateModel( mImpl->mOperationsPending );
+
+ Size layoutSize;
+ bool updated = DoRelayout( mImpl->mControlSize,
+ mImpl->mOperationsPending,
+ layoutSize );
+
+ // Do not re-do any operation until something changes.
+ mImpl->mOperationsPending = NO_OPERATION;
+
+ // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
+ CalculateTextAlignment( size );
+
+ if( mImpl->mEventData )
{
// Move the cursor, grab handle etc.
- updated = mImpl->mTextInput->ProcessTouchEvents() || updated;
+ updated = mImpl->ProcessInputEvents() || updated;
}
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
return updated;
}
-bool Controller::DoRelayout( const Vector2& size, OperationsMask operations )
+void Controller::ProcessModifyEvents()
{
- bool viewUpdated( false );
+ std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
- Vector<Character> utf32Characters;
- Length characterCount = 0u;
- if( CONVERT_TO_UTF32 & operations )
+ for( unsigned int i=0; i<events.size(); ++i )
{
- std::string& text = mImpl->mNewText;
-
- // Convert text into UTF-32
- utf32Characters.Resize( text.size() );
-
- // This is a bit horrible but std::string returns a (signed) char*
- const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
+ if( ModifyEvent::TEXT_REPLACED == events[0].type )
+ {
+ // A (single) replace event should come first, otherwise we wasted time processing NOOP events
+ DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
- // 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 );
+ TextReplacedEvent();
+ }
+ else if( ModifyEvent::TEXT_INSERTED == events[0].type )
+ {
+ TextInsertedEvent();
+ }
+ else if( ModifyEvent::TEXT_DELETED == events[0].type )
+ {
+ // Placeholder-text cannot be deleted
+ if( !mImpl->IsShowingPlaceholderText() )
+ {
+ TextDeletedEvent();
+ }
+ }
+ }
- // Sets the text into the model.
- mImpl->mLogicalModel->SetText( utf32Characters.Begin(), characterCount );
+ // Discard temporary text
+ events.clear();
+}
- // Discard temporary text
- //text.clear(); temporary keep the text. will be fixed in the next patch.
- }
+void Controller::ResetText()
+{
+ // Reset buffers.
+ mImpl->mLogicalModel->mText.Clear();
+ ClearModelData();
- Vector<LineBreakInfo> lineBreakInfo;
- if( GET_LINE_BREAKS & operations )
+ // Reset the cursor position
+ if( mImpl->mEventData )
{
- // Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to
- // calculate the bidirectional info for each 'paragraph'.
- // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines
- // is not shaped together).
- lineBreakInfo.Resize( characterCount, TextAbstraction::LINE_NO_BREAK );
+ mImpl->mEventData->mPrimaryCursorPosition = 0;
+ }
- SetLineBreakInfo( utf32Characters,
- lineBreakInfo );
+ // We have cleared everything including the placeholder-text
+ mImpl->PlaceholderCleared();
- mImpl->mLogicalModel->SetLineBreakInfo( lineBreakInfo.Begin(), characterCount );
- }
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
- Vector<WordBreakInfo> wordBreakInfo;
- if( GET_WORD_BREAKS & operations )
- {
- // Retrieves the word break info. The word break info is used to layout the text (where to wrap the text in lines).
- wordBreakInfo.Resize( characterCount, TextAbstraction::WORD_NO_BREAK );
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+}
- SetWordBreakInfo( utf32Characters,
- wordBreakInfo );
+void Controller::TextReplacedEvent()
+{
+ // Reset buffers.
+ ClearModelData();
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+}
- mImpl->mLogicalModel->SetWordBreakInfo( wordBreakInfo.Begin(), characterCount );
- }
+void Controller::TextInsertedEvent()
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
- const bool getScripts = GET_SCRIPTS & operations;
- const bool validateFonts = VALIDATE_FONTS & operations;
+ // TODO - Optimize this
+ ClearModelData();
- Vector<ScriptRun> scripts;
- Vector<FontRun> fonts;
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
- if( mImpl->mFontDefaults )
- {
- // TODO - pass into ValidateFonts
- }
+ // 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 );
- if( getScripts || validateFonts )
- {
- // Validates the fonts assigned by the application or assigns default ones.
- // It makes sure all the characters are going to be rendered by the correct font.
- MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get();
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+}
- if( getScripts )
- {
- // Retrieves the scripts used in the text.
- multilanguageSupport.SetScripts( utf32Characters,
- lineBreakInfo,
- scripts );
+void Controller::TextDeletedEvent()
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
- // Sets the scripts into the model.
- mImpl->mLogicalModel->SetScripts( scripts.Begin(), scripts.Count() );
- }
+ // TODO - Optimize this
+ ClearModelData();
- if( validateFonts )
- {
- // Validates the fonts. If there is a character with no assigned font it sets a default one.
- // After this call, fonts are validated.
- multilanguageSupport.ValidateFonts( utf32Characters,
- scripts,
- fonts );
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
- // Sets the fonts into the model.
- mImpl->mLogicalModel->SetFonts( fonts.Begin(), fonts.Count() );
- }
- }
+ // 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 );
- Vector<GlyphInfo> glyphs;
- Vector<CharacterIndex> glyphsToCharactersMap;
- Vector<Length> charactersPerGlyph;
- if( SHAPE_TEXT & operations )
- {
- // Shapes the text.
- ShapeText( utf32Characters,
- lineBreakInfo,
- scripts,
- fonts,
- glyphs,
- glyphsToCharactersMap,
- charactersPerGlyph );
- }
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+}
- if( GET_GLYPH_METRICS & operations )
- {
- mImpl->mFontClient.GetGlyphMetrics( glyphs.Begin(), glyphs.Count() );
- }
+bool Controller::DoRelayout( const Size& size,
+ OperationsMask operationsRequired,
+ Size& layoutSize )
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
+ bool viewUpdated( false );
- Length numberOfGlyphs = glyphs.Count();
- if( 0u != numberOfGlyphs )
- {
- // Sets the glyphs into the model.
- mImpl->mVisualModel->SetGlyphs( glyphs.Begin(),
- glyphsToCharactersMap.Begin(),
- charactersPerGlyph.Begin(),
- numberOfGlyphs );
- }
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
if( LAYOUT & operations )
{
- if( 0u == numberOfGlyphs )
- {
- const Length numberOfCharacters = mImpl->mLogicalModel->GetNumberOfCharacters();
- numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
-
- lineBreakInfo.Resize( numberOfCharacters );
- wordBreakInfo.Resize( numberOfCharacters );
- glyphs.Resize( numberOfGlyphs );
- glyphsToCharactersMap.Resize( numberOfGlyphs );
- charactersPerGlyph.Resize( numberOfGlyphs );
-
- mImpl->mLogicalModel->GetLineBreakInfo( lineBreakInfo.Begin(),
- 0u,
- numberOfCharacters );
-
- mImpl->mLogicalModel->GetWordBreakInfo( wordBreakInfo.Begin(),
- 0u,
- numberOfCharacters );
+ // 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.
- mImpl->mVisualModel->GetGlyphs( glyphs.Begin(),
- 0u,
- numberOfGlyphs );
+ Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
- mImpl->mVisualModel->GetGlyphToCharacterMap( glyphsToCharactersMap.Begin(),
- 0u,
- numberOfGlyphs );
-
- mImpl->mVisualModel->GetCharactersPerGlyphMap( charactersPerGlyph.Begin(),
- 0u,
- numberOfGlyphs );
+ if( 0u == numberOfGlyphs )
+ {
+ // Nothing else to do if there is no glyphs.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
+ return true;
}
+ Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
+ Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
+ Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
+ 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(),
+ ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
numberOfGlyphs,
glyphs.Begin(),
glyphsToCharactersMap.Begin(),
charactersPerGlyph.Begin() );
- // Reserve space to set the positions of the glyphs.
- Vector<Vector2> glyphPositions;
- glyphPositions.Resize( numberOfGlyphs );
+ // The laid-out lines.
+ // It's not possible to know in how many lines the text is going to be laid-out,
+ // but it can be resized at least with the number of 'paragraphs' to avoid
+ // some re-allocations.
+ Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
+
+ // Delete any previous laid out lines before setting the new ones.
+ lines.Clear();
- Size layoutSize;
+ // The capacity of the bidirectional paragraph info is the number of paragraphs.
+ lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
+
+ // Resize the vector of positions to have the same size than the vector of glyphs.
+ Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
+ glyphPositions.Resize( numberOfGlyphs );
- // Update the visual model
+ // Update the visual model.
viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
glyphPositions,
+ lines,
layoutSize );
- // Sets the positions into the model.
- mImpl->mVisualModel->SetGlyphPositions( glyphPositions.Begin(),
- numberOfGlyphs );
+ if( viewUpdated )
+ {
+ // Reorder the lines
+ if( REORDER & operations )
+ {
+ Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
+
+ // Check first if there are paragraphs with bidirectional info.
+ if( 0u != bidirectionalInfo.Count() )
+ {
+ // Get the lines
+ const Length numberOfLines = mImpl->mVisualModel->GetNumberOfLines();
+
+ // Reorder the lines.
+ Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
+ lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
+ ReorderLines( bidirectionalInfo,
+ lines,
+ lineBidirectionalInfoRuns );
+
+ // Set the bidirectional info into the model.
+ const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
+ mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
+ numberOfBidirectionalInfoRuns );
+
+ // Set the bidirectional info per line into the layout parameters.
+ layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
+ layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
+
+ // Get the character to glyph conversion table and set into the layout.
+ layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
+
+ // Get the glyphs per character table and set into the layout.
+ layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
+
+ // Re-layout the text. Reorder those lines with right to left characters.
+ mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
+ glyphPositions );
+
+ // Free the allocated memory used to store the conversion table in the bidirectional line info run.
+ for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
+ endIt = lineBidirectionalInfoRuns.End();
+ it != endIt;
+ ++it )
+ {
+ BidirectionalLineInfoRun& bidiLineInfo = *it;
+
+ free( bidiLineInfo.visualToLogicalMap );
+ }
+ }
+ } // REORDER
+
+ if( ALIGN & operations )
+ {
+ mImpl->mLayoutEngine.Align( layoutParameters,
+ layoutSize,
+ lines,
+ glyphPositions );
+ }
- // Sets the actual size.
- mImpl->mVisualModel->SetActualSize( layoutSize );
+ // Sets the actual size.
+ if( UPDATE_ACTUAL_SIZE & operations )
+ {
+ mImpl->mVisualModel->SetActualSize( layoutSize );
+ }
+ } // view updated
+ }
+ else
+ {
+ layoutSize = mImpl->mVisualModel->GetActualSize();
}
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
return viewUpdated;
}
-Vector3 Controller::GetNaturalSize()
+void Controller::CalculateTextAlignment( const Size& size )
{
- // TODO - Finish implementing
- return Vector3::ZERO;
-
- // Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
- GET_SCRIPTS |
- VALIDATE_FONTS |
- GET_LINE_BREAKS |
- GET_WORD_BREAKS |
- SHAPE_TEXT |
- GET_GLYPH_METRICS );
+ // Get the direction of the first character.
+ const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
- // Operations that need to be done if the size or the text changes.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- REORDER );
+ const Size& actualSize = mImpl->mVisualModel->GetActualSize();
- const float maxFloat = std::numeric_limits<float>::max();
- DoRelayout( Vector2( maxFloat, maxFloat ),
- static_cast<OperationsMask>( onlyOnceOperations |
- sizeOperations ) );
-
- // Do not do again the only once operations.
- mImpl->mOperations = static_cast<OperationsMask>( mImpl->mOperations & ~onlyOnceOperations );
+ // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
+ LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
+ if( firstParagraphDirection &&
+ ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
+ {
+ if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
+ {
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
+ }
+ else
+ {
+ horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
+ }
+ }
- // Do the size related operations again.
- mImpl->mOperations = static_cast<OperationsMask>( mImpl->mOperations | sizeOperations );
+ switch( horizontalAlignment )
+ {
+ case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
+ {
+ mImpl->mAlignmentOffset.x = 0.f;
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
+ {
+ const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
+ mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
+ {
+ mImpl->mAlignmentOffset.x = size.width - actualSize.width;
+ break;
+ }
+ }
- return Vector3( mImpl->mVisualModel->GetNaturalSize() );
+ const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
+ switch( verticalAlignment )
+ {
+ case LayoutEngine::VERTICAL_ALIGN_TOP:
+ {
+ mImpl->mAlignmentOffset.y = 0.f;
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_CENTER:
+ {
+ const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
+ mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ {
+ mImpl->mAlignmentOffset.y = size.height - actualSize.height;
+ break;
+ }
+ }
}
-float Controller::GetHeightForWidth( float width )
+LayoutEngine& Controller::GetLayoutEngine()
{
- // 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 |
- SHAPE_TEXT |
- GET_GLYPH_METRICS );
-
- // Operations that need to be done if the size or the text changes.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- REORDER );
-
- DoRelayout( Size( width, 0.f ),
- static_cast<OperationsMask>( onlyOnceOperations |
- sizeOperations ) );
-
- // Do not do again the only once operations.
- mImpl->mOperations = static_cast<OperationsMask>( mImpl->mOperations & ~onlyOnceOperations );
-
- // Do the size related operations again.
- mImpl->mOperations = static_cast<OperationsMask>( mImpl->mOperations | sizeOperations );
-
- return mImpl->mVisualModel->GetActualSize().height;
+ return mImpl->mLayoutEngine;
}
View& Controller::GetView()
return mImpl->mView;
}
-LayoutEngine& Controller::GetLayoutEngine()
+void Controller::KeyboardFocusGainEvent()
{
- return mImpl->mLayoutEngine;
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
+
+ if( mImpl->mEventData )
+ {
+ mImpl->ChangeState( EventData::EDITING );
+
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ // Show alternative placeholder-text when editing
+ ShowPlaceholderText();
+ }
+
+ mImpl->RequestRelayout();
+ }
}
-void Controller::RequestRelayout()
+void Controller::KeyboardFocusLostEvent()
{
- mImpl->mControlInterface.RequestTextRelayout();
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
+
+ if( mImpl->mEventData )
+ {
+ mImpl->ChangeState( EventData::INACTIVE );
+
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ // Revert to regular placeholder-text when not editing
+ ShowPlaceholderText();
+ }
+
+ mImpl->RequestRelayout();
+ }
}
-void Controller::KeyboardFocusGainEvent()
+bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusGainEvent" );
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
- if( mImpl->mTextInput )
+ if( mImpl->mEventData &&
+ keyEvent.state == KeyEvent::Down )
{
- TextInput::Event event( TextInput::KEYBOARD_FOCUS_GAIN_EVENT );
- mImpl->mTextInput->mEventQueue.push_back( event );
+ int keyCode = keyEvent.keyCode;
+ const std::string& keyString = keyEvent.keyPressed;
+
+ // Pre-process to separate modifying events from non-modifying input events.
+ if( Dali::DALI_KEY_ESCAPE == keyCode )
+ {
+ // Escape key is a special case which causes focus loss
+ KeyboardFocusLostEvent();
+ }
+ else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
+ Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
+ Dali::DALI_KEY_CURSOR_UP == keyCode ||
+ Dali::DALI_KEY_CURSOR_DOWN == keyCode )
+ {
+ Event event( Event::CURSOR_KEY_EVENT );
+ event.p1.mInt = keyCode;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
+ else if( Dali::DALI_KEY_BACKSPACE == keyCode )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
+
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+
+ // Remove the character before the current cursor position
+ bool removed = RemoveText( -1, 1 );
+
+ if( removed )
+ {
+ if( 0u == mImpl->mLogicalModel->mText.Count() )
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ else
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ }
+ }
+ else
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
+
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+
+ InsertText( keyString, COMMIT );
+ }
- RequestRelayout();
+ mImpl->ChangeState( EventData::EDITING ); // todo Confirm this is the best place to change the state of
+
+ mImpl->RequestRelayout();
}
+
+ return false;
}
-void Controller::KeyboardFocusLostEvent()
+void Controller::InsertText( const std::string& text, Controller::InsertType type )
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected KeyboardFocusLostEvent" );
+ bool removedPreEdit( false );
+ bool maxLengthReached( false );
+
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) 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;
+ Length characterCount( 0u );
+
+ if( ! text.empty() )
+ {
+ // The placeholder text is no longer needed
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ ResetText();
+ }
+
+ // Convert text into UTF-32
+ utf32Characters.Resize( text.size() );
+
+ // This is a bit horrible but std::string returns a (signed) char*
+ const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
+
+ // Transform a text array encoded in utf8 into an array encoded in utf32.
+ // It returns the actual number of characters.
+ characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
+ utf32Characters.Resize( characterCount );
+
+ DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
+ }
+
+ if( 0u != utf32Characters.Count() )
+ {
+ // Handle the IMF (predicitive text) state changes
+ if( mImpl->mEventData )
+ {
+ if( mImpl->mEventData->mPreEditFlag &&
+ 0 != mImpl->mEventData->mPreEditLength )
+ {
+ // Remove previous pre-edit text
+ CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
+ removedPreEdit = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
+
+ mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
+ mImpl->mEventData->mPreEditLength = 0;
+ }
+
+ if( COMMIT == type )
+ {
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+ }
+ else // PRE_EDIT
+ {
+ if( ! mImpl->mEventData->mPreEditFlag )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
+
+ // Record the start of the pre-edit text
+ mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
+ }
+
+ mImpl->mEventData->mPreEditLength = utf32Characters.Count();
+ mImpl->mEventData->mPreEditFlag = true;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
+ }
+ }
+
+ const Length numberOfCharactersInModel = mImpl->mLogicalModel->GetNumberOfCharacters();
+
+ // Restrict new text to fit within Maximum characters setting
+ Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
+ maxLengthReached = ( characterCount > maxSizeOfNewText );
+
+ // Insert at current cursor position
+ CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
+
+ Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
- if( mImpl->mTextInput )
+ if( cursorIndex < numberOfCharactersInModel )
+ {
+ modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
+ }
+ else
+ {
+ modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
+ }
+
+ cursorIndex += maxSizeOfNewText;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
+ }
+
+ if( removedPreEdit ||
+ 0 != utf32Characters.Count() )
{
- TextInput::Event event( TextInput::KEYBOARD_FOCUS_LOST_EVENT );
- mImpl->mTextInput->mEventQueue.push_back( event );
+ // Queue an inserted event
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
+ }
+
+ if( maxLengthReached )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
+
+ mImpl->mControlInterface.MaxLengthReached();
- RequestRelayout();
+ mImpl->ResetImfManager();
}
}
void Controller::TapEvent( unsigned int tapCount, float x, float y )
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected TapEvent" );
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
+
+ if( NULL != mImpl->mEventData )
+ {
+ if( 1u == tapCount )
+ {
+ bool tapDuringEditMode( EventData::EDITING == mImpl->mEventData->mState );
+
+ if( ! mImpl->IsShowingPlaceholderText() &&
+ EventData::EDITING == mImpl->mEventData->mState )
+ {
+ // Grab handle is not shown until a tap is received whilst EDITING
+ if( tapDuringEditMode )
+ {
+ mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ }
+ mImpl->mEventData->mDecorator->SetPopupActive( false );
+ }
+
+ mImpl->ChangeState( EventData::EDITING );
+ }
+ else if( mImpl->mEventData->mSelectionEnabled &&
+ ( 2u == tapCount ) )
+ {
+ mImpl->ChangeState( EventData::SELECTING );
+ }
+ }
- if( mImpl->mTextInput )
+ // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
+ if( mImpl->mEventData )
{
- TextInput::Event event( TextInput::TAP_EVENT );
+ Event event( Event::TAP_EVENT );
event.p1.mUint = tapCount;
event.p2.mFloat = x;
event.p3.mFloat = y;
- mImpl->mTextInput->mEventQueue.push_back( event );
+ mImpl->mEventData->mEventQueue.push_back( event );
- RequestRelayout();
+ mImpl->RequestRelayout();
}
+
+ // Reset keyboard as tap event has occurred.
+ mImpl->ResetImfManager();
}
-void Controller::GrabHandleEvent( GrabHandleState state, float x, float y )
+void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
{
- DALI_ASSERT_DEBUG( mImpl->mTextInput && "Unexpected GrabHandleEvent" );
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
- if( mImpl->mTextInput )
+ if( mImpl->mEventData )
{
- TextInput::Event event( TextInput::GRAB_HANDLE_EVENT );
- event.p1.mUint = state;
- event.p2.mFloat = x;
- event.p3.mFloat = y;
- mImpl->mTextInput->mEventQueue.push_back( event );
+ Event event( Event::PAN_EVENT );
+ event.p1.mInt = state;
+ event.p2.mFloat = displacement.x;
+ event.p3.mFloat = displacement.y;
+ mImpl->mEventData->mEventQueue.push_back( event );
+
+ mImpl->RequestRelayout();
+ }
+}
+
+void Controller::HandleEvent( HandleType handleType, HandleState state, float x, float y )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Controller::HandleEvent. Unexpected HandleEvent" );
+
+ if( mImpl->mEventData )
+ {
+ switch( handleType )
+ {
+ case GRAB_HANDLE:
+ {
+ Event event( Event::GRAB_HANDLE_EVENT );
+ event.p1.mUint = state;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+
+ mImpl->mEventData->mEventQueue.push_back( event );
+ break;
+ }
+ case LEFT_SELECTION_HANDLE:
+ {
+ Event event( Event::LEFT_SELECTION_HANDLE_EVENT );
+ event.p1.mUint = state;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+
+ mImpl->mEventData->mEventQueue.push_back( event );
+ break;
+ }
+ case RIGHT_SELECTION_HANDLE:
+ {
+ Event event( Event::RIGHT_SELECTION_HANDLE_EVENT );
+ event.p1.mUint = state;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+
+ mImpl->mEventData->mEventQueue.push_back( event );
+ break;
+ }
+ case HANDLE_TYPE_COUNT:
+ {
+ DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
+ }
+ }
- RequestRelayout();
+ mImpl->RequestRelayout();
}
}
delete mImpl;
}
+void Controller::ShowPlaceholderText()
+{
+ if( mImpl->IsPlaceholderAvailable() )
+ {
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
+
+ mImpl->mEventData->mIsShowingPlaceholderText = true;
+
+ // Cancel previously queued inserts etc.
+ mImpl->mModifyEvents.clear();
+
+ // Disable handles when showing place-holder text
+ mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+
+ const char* text( NULL );
+ size_t size( 0 );
+
+ // TODO - Switch placeholder text styles when changing state
+ if( EventData::INACTIVE != mImpl->mEventData->mState &&
+ 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
+ {
+ text = mImpl->mEventData->mPlaceholderTextActive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextActive.size();
+ }
+ else
+ {
+ text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextInactive.size();
+ }
+
+ // Reset model for showing placeholder.
+ mImpl->mLogicalModel->mText.Clear();
+ ClearModelData();
+ mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
+
+ // Convert text into UTF-32
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
+ utf32Characters.Resize( size );
+
+ // This is a bit horrible but std::string returns a (signed) char*
+ const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
+
+ // Transform a text array encoded in utf8 into an array encoded in utf32.
+ // It returns the actual number of characters.
+ Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
+ utf32Characters.Resize( characterCount );
+
+ // Reset the cursor position
+ mImpl->mEventData->mPrimaryCursorPosition = 0;
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+ }
+}
+
+void Controller::ClearModelData()
+{
+ // n.b. This does not Clear the mText from mLogicalModel
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mLogicalModel->mCharacterDirections.Clear();
+ mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
+ mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
+ mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+}
+
+void Controller::ClearFontData()
+{
+ mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+}
+
Controller::Controller( ControlInterface& controlInterface )
: mImpl( NULL )
{
projects / platform / core / uifw / dali-toolkit.git / blobdiff