// EXTERNAL INCLUDES
#include <dali/public-api/adaptor-framework/key.h>
+#include <dali/integration-api/debug.h>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/bidirectional-support.h>
namespace
{
+#if defined(DEBUG_ENABLED)
+ Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
+#endif
+
/**
* @brief Some characters can be shaped in more than one glyph.
* This struct is used to retrieve metrics from these group of glyphs.
* @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).
- * @param[in]
- * @param[in]
+ * @param[in] visualModel The visual model.
+ * @param[in] fontClient The font client.
*/
void GetGlyphsMetrics( GlyphIndex glyphIndex,
Length numberOfGlyphs,
mDecoratorUpdated( false ),
mCursorBlinkEnabled( true ),
mGrabHandleEnabled( true ),
- mGrabHandlePopupEnabled( false ),
- mSelectionEnabled( false ),
+ mGrabHandlePopupEnabled( true ),
+ mSelectionEnabled( true ),
mHorizontalScrollingEnabled( true ),
mVerticalScrollingEnabled( false ),
mUpdateCursorPosition( false ),
mUpdateLeftSelectionPosition( false ),
mUpdateRightSelectionPosition( false ),
- mScrollAfterUpdateCursorPosition( false )
+ mScrollAfterUpdatePosition( false ),
+ mScrollAfterDelete( false ),
+ mAllTextSelected( false )
{}
EventData::~EventData()
bool Controller::Impl::ProcessInputEvents()
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::ProcessInputEvents\n" );
if( NULL == mEventData )
{
// Nothing to do if there is no text input.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents no event data\n" );
return false;
}
- mEventData->mDecoratorUpdated = false;
-
if( mEventData->mDecorator )
{
for( std::vector<Event>::iterator iter = mEventData->mEventQueue.begin();
{
switch( iter->type )
{
- case Event::KEYBOARD_FOCUS_GAIN_EVENT:
- {
- OnKeyboardFocus( true );
- break;
- }
- case Event::KEYBOARD_FOCUS_LOST_EVENT:
- {
- OnKeyboardFocus( false );
- break;
- }
- case Event::CURSOR_KEY_EVENT:
- {
- OnCursorKeyEvent( *iter );
- break;
- }
- case Event::TAP_EVENT:
- {
- OnTapEvent( *iter );
- break;
- }
- case Event::PAN_EVENT:
- {
- OnPanEvent( *iter );
- break;
- }
- case Event::GRAB_HANDLE_EVENT:
- case Event::LEFT_SELECTION_HANDLE_EVENT:
- case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
- {
- OnHandleEvent( *iter );
- break;
- }
+ case Event::CURSOR_KEY_EVENT:
+ {
+ OnCursorKeyEvent( *iter );
+ break;
+ }
+ case Event::TAP_EVENT:
+ {
+ OnTapEvent( *iter );
+ break;
+ }
+ case Event::LONG_PRESS_EVENT:
+ {
+ OnLongPressEvent( *iter );
+ break;
+ }
+ case Event::PAN_EVENT:
+ {
+ OnPanEvent( *iter );
+ break;
+ }
+ case Event::GRAB_HANDLE_EVENT:
+ case Event::LEFT_SELECTION_HANDLE_EVENT:
+ case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
+ {
+ OnHandleEvent( *iter );
+ break;
+ }
+ case Event::SELECT:
+ {
+ OnSelectEvent( *iter );
+ break;
+ }
+ case Event::SELECT_ALL:
+ {
+ OnSelectAllEvent();
+ break;
+ }
}
}
}
UpdateCursorPosition();
- if( mEventData->mScrollAfterUpdateCursorPosition )
+ if( mEventData->mScrollAfterUpdatePosition )
{
- ScrollToMakeCursorVisible();
- mEventData->mScrollAfterUpdateCursorPosition = false;
+ const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
+
+ ScrollToMakePositionVisible( primaryCursorPosition );
+ mEventData->mScrollAfterUpdatePosition = false;
}
mEventData->mDecoratorUpdated = true;
mEventData->mUpdateCursorPosition = false;
}
- else if( mEventData->mUpdateLeftSelectionPosition )
+ else if( mEventData->mScrollAfterDelete )
{
- UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
-
- if( mEventData->mScrollAfterUpdateCursorPosition )
- {
- ScrollToMakeCursorVisible();
- mEventData->mScrollAfterUpdateCursorPosition = false;
- }
-
+ ScrollTextToMatchCursor();
mEventData->mDecoratorUpdated = true;
- mEventData->mUpdateLeftSelectionPosition = false;
+ mEventData->mScrollAfterDelete = false;
}
- else if( mEventData->mUpdateRightSelectionPosition )
+ else
{
- UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
+ bool leftScroll = false;
+ bool rightScroll = false;
- if( mEventData->mScrollAfterUpdateCursorPosition )
+ if( mEventData->mUpdateLeftSelectionPosition )
{
- ScrollToMakeCursorVisible();
- mEventData->mScrollAfterUpdateCursorPosition = false;
- }
+ UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
- mEventData->mDecoratorUpdated = true;
- mEventData->mUpdateRightSelectionPosition = false;
- }
-
- mEventData->mEventQueue.clear();
+ if( mEventData->mScrollAfterUpdatePosition )
+ {
+ const Vector2& leftHandlePosition = mEventData->mDecorator->GetPosition( LEFT_SELECTION_HANDLE );
- return mEventData->mDecoratorUpdated;
-}
+ ScrollToMakePositionVisible( leftHandlePosition );
+ leftScroll = true;
+ }
-void Controller::Impl::ReplaceTextWithPlaceholder()
-{
- DALI_ASSERT_DEBUG( mEventData && "No placeholder text available" );
- if( !mEventData )
- {
- return;
- }
+ SetPopupButtons();
+ mEventData->mDecoratorUpdated = true;
+ mEventData->mUpdateLeftSelectionPosition = false;
+ }
- // Disable handles when showing place-holder text
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ if( mEventData->mUpdateRightSelectionPosition )
+ {
+ UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
- const char* text( NULL );
- size_t size( 0 );
+ if( mEventData->mScrollAfterUpdatePosition )
+ {
+ const Vector2& rightHandlePosition = mEventData->mDecorator->GetPosition( RIGHT_SELECTION_HANDLE );
- if( EventData::INACTIVE != mEventData->mState &&
- 0u != mEventData->mPlaceholderTextActive.c_str() )
- {
- text = mEventData->mPlaceholderTextActive.c_str();
- size = mEventData->mPlaceholderTextActive.size();
- }
+ ScrollToMakePositionVisible( rightHandlePosition );
+ rightScroll = true;
+ }
- else
- {
- text = mEventData->mPlaceholderTextInactive.c_str();
- size = mEventData->mPlaceholderTextInactive.size();
- }
-
- // Reset buffers.
- mLogicalModel->mText.Clear();
- mLogicalModel->mScriptRuns.Clear();
- mLogicalModel->mFontRuns.Clear();
- mLogicalModel->mLineBreakInfo.Clear();
- mLogicalModel->mWordBreakInfo.Clear();
- mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mLogicalModel->mCharacterDirections.Clear();
- mLogicalModel->mBidirectionalLineInfo.Clear();
- mLogicalModel->mLogicalToVisualMap.Clear();
- mLogicalModel->mVisualToLogicalMap.Clear();
- mVisualModel->mGlyphs.Clear();
- mVisualModel->mGlyphsToCharacters.Clear();
- mVisualModel->mCharactersToGlyph.Clear();
- mVisualModel->mCharactersPerGlyph.Clear();
- mVisualModel->mGlyphsPerCharacter.Clear();
- mVisualModel->mGlyphPositions.Clear();
- mVisualModel->mLines.Clear();
- mVisualModel->ClearCaches();
- mVisualModel->SetTextColor( mEventData->mPlaceholderTextColor );
-
- // Convert text into UTF-32
- Vector<Character>& utf32Characters = mLogicalModel->mText;
- utf32Characters.Resize( size );
+ SetPopupButtons();
+ mEventData->mDecoratorUpdated = true;
+ mEventData->mUpdateRightSelectionPosition = false;
+ }
- // This is a bit horrible but std::string returns a (signed) char*
- const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
+ if( leftScroll || rightScroll )
+ {
+ mEventData->mScrollAfterUpdatePosition = false;
+ }
+ }
- // 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 );
+ mEventData->mEventQueue.clear();
- // Reset the cursor position
- mEventData->mPrimaryCursorPosition = 0;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents\n" );
- // The natural size needs to be re-calculated.
- mRecalculateNaturalSize = true;
+ const bool decoratorUpdated = mEventData->mDecoratorUpdated;
+ mEventData->mDecoratorUpdated = false;
- // Apply modifications to the model
- mOperationsPending = ALL_OPERATIONS;
- UpdateModel( ALL_OPERATIONS );
- mOperationsPending = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- UPDATE_ACTUAL_SIZE |
- REORDER );
+ return decoratorUpdated;
}
void Controller::Impl::UpdateModel( OperationsMask operationsRequired )
Vector<Character>& utf32Characters = mLogicalModel->mText;
- const Length numberOfCharacters = mLogicalModel->GetNumberOfCharacters();
+ const Length numberOfCharacters = utf32Characters.Count();
Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
if( GET_LINE_BREAKS & operations )
{
// Retrieves the scripts used in the text.
multilanguageSupport.SetScripts( utf32Characters,
- lineBreakInfo,
scripts );
}
Vector<Character> mirroredUtf32Characters;
bool textMirrored = false;
+ Length numberOfParagraphs = 0u;
if( BIDI_INFO & operations )
{
// Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's
// bidirectional info.
- Length numberOfParagraphs = 0u;
-
const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin();
for( Length index = 0u; index < numberOfCharacters; ++index )
{
// This paragraph has right to left text. Some characters may need to be mirrored.
// TODO: consider if the mirrored string can be stored as well.
- textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters );
+ textMirrored = GetMirroredText( utf32Characters,
+ mirroredUtf32Characters,
+ bidirectionalInfo );
// Only set the character directions if there is right to left characters.
Vector<CharacterDirection>& directions = mLogicalModel->mCharacterDirections;
// There is no right to left characters. Clear the directions vector.
mLogicalModel->mCharacterDirections.Clear();
}
-
- }
+ }
Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
Vector<CharacterIndex>& glyphsToCharactersMap = mVisualModel->mGlyphsToCharacters;
Vector<Length>& charactersPerGlyph = mVisualModel->mCharactersPerGlyph;
+ Vector<GlyphIndex> newParagraphGlyphs;
+ newParagraphGlyphs.Reserve( numberOfParagraphs );
+
if( SHAPE_TEXT & operations )
{
const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
validFonts,
glyphs,
glyphsToCharactersMap,
- charactersPerGlyph );
+ charactersPerGlyph,
+ newParagraphGlyphs );
// Create the 'number of glyphs' per character and the glyph to character conversion tables.
mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
if( GET_GLYPH_METRICS & operations )
{
- mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs );
+ GlyphInfo* glyphsBuffer = glyphs.Begin();
+ mFontClient.GetGlyphMetrics( glyphsBuffer, numberOfGlyphs );
+
+ // Update the width and advance of all new paragraph characters.
+ for( Vector<GlyphIndex>::ConstIterator it = newParagraphGlyphs.Begin(), endIt = newParagraphGlyphs.End(); it != endIt; ++it )
+ {
+ const GlyphIndex index = *it;
+ GlyphInfo& glyph = *( glyphsBuffer + index );
+
+ glyph.xBearing = 0.f;
+ glyph.width = 0.f;
+ glyph.advance = 0.f;
+ }
}
}
}
}
-void Controller::Impl::OnKeyboardFocus( bool hasFocus )
+float Controller::Impl::GetDefaultFontLineHeight()
{
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return;
- }
-
- if( !hasFocus )
+ FontId defaultFontId = 0u;
+ if( NULL == mFontDefaults )
{
- ChangeState( EventData::INACTIVE );
+ defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
+ EMPTY_STRING );
}
else
{
- ChangeState( EventData::EDITING );
+ defaultFontId = mFontDefaults->GetFontId( mFontClient );
}
+
+ Text::FontMetrics fontMetrics;
+ mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
+
+ return( fontMetrics.ascender - fontMetrics.descender );
}
void Controller::Impl::OnCursorKeyEvent( const Event& event )
}
else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
{
- if( mLogicalModel->GetNumberOfCharacters() > mEventData->mPrimaryCursorPosition )
+ if( mLogicalModel->mText.Count() > mEventData->mPrimaryCursorPosition )
{
mEventData->mPrimaryCursorPosition = CalculateNewCursorIndex( mEventData->mPrimaryCursorPosition );
}
}
mEventData->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdateCursorPosition = true;
+ mEventData->mScrollAfterUpdatePosition = true;
}
void Controller::Impl::OnTapEvent( const Event& event )
{
- if( NULL == mEventData )
+ if( NULL != mEventData )
{
- // Nothing to do if there is no text input.
- return;
- }
+ const unsigned int tapCount = event.p1.mUint;
- const unsigned int tapCount = event.p1.mUint;
-
- if( 1u == tapCount )
- {
- // Grab handle is not shown until a tap is received whilst EDITING
- if( EventData::EDITING == mEventData->mState &&
- !IsShowingPlaceholderText() )
+ if( 1u == tapCount )
{
- if( mEventData->mGrabHandleEnabled )
+ if( ! IsShowingPlaceholderText() )
{
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
- }
- mEventData->mDecorator->SetPopupActive( false );
- }
-
- ChangeState( EventData::EDITING );
-
- const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
- const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
-
- mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
+ const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+ const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
- mEventData->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdateCursorPosition = true;
- }
- else if( mEventData->mSelectionEnabled &&
- ( 2u == tapCount ) )
- {
- ChangeState( EventData::SELECTING );
+ mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
+ yPosition );
+ }
+ else
+ {
+ mEventData->mPrimaryCursorPosition = 0u;
+ }
- RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat );
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mScrollAfterUpdatePosition = true;
+ }
}
}
}
}
+void Controller::Impl::OnLongPressEvent( const Event& event )
+{
+ if ( EventData::EDITING == mEventData->mState )
+ {
+ ChangeState ( EventData::EDITING_WITH_POPUP );
+ mEventData->mDecoratorUpdated = true;
+ }
+}
+
void Controller::Impl::OnHandleEvent( const Event& event )
{
if( NULL == mEventData )
}
const unsigned int state = event.p1.mUint;
+ const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state );
if( HANDLE_PRESSED == state )
{
if( Event::GRAB_HANDLE_EVENT == event.type )
{
- ChangeState ( EventData::EDITING );
+ ChangeState ( EventData::GRAB_HANDLE_PANNING );
if( handleNewPosition != mEventData->mPrimaryCursorPosition )
{
}
else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
{
- if( handleNewPosition != mEventData->mLeftSelectionPosition )
+ ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
+ if( ( handleNewPosition != mEventData->mLeftSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mRightSelectionPosition ) )
{
mEventData->mLeftSelectionPosition = handleNewPosition;
+
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+
mEventData->mUpdateLeftSelectionPosition = true;
}
}
else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
{
- if( handleNewPosition != mEventData->mRightSelectionPosition )
+ ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
+ if( ( handleNewPosition != mEventData->mRightSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mLeftSelectionPosition ) )
{
mEventData->mRightSelectionPosition = handleNewPosition;
+
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+
mEventData->mUpdateRightSelectionPosition = true;
}
}
- }
+ } // end ( HANDLE_PRESSED == state )
else if( ( HANDLE_RELEASED == state ) ||
- ( HANDLE_STOP_SCROLLING == state ) )
+ handleStopScrolling )
{
- if( mEventData->mGrabHandlePopupEnabled )
+ CharacterIndex handlePosition = 0u;
+ if( handleStopScrolling )
{
- ChangeState( EventData::EDITING_WITH_POPUP );
+ // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
+ const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+ const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+
+ handlePosition = GetClosestCursorIndex( xPosition, yPosition );
}
+
if( Event::GRAB_HANDLE_EVENT == event.type )
{
mEventData->mUpdateCursorPosition = true;
- if( HANDLE_STOP_SCROLLING == state )
+ ChangeState( EventData::EDITING_WITH_POPUP );
+
+ if( handleStopScrolling )
{
- // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
- const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
- const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+ mEventData->mScrollAfterUpdatePosition = mEventData->mPrimaryCursorPosition != handlePosition;
+ mEventData->mPrimaryCursorPosition = handlePosition;
+ }
+ }
+ else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::SELECTING );
- mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, yPosition );
+ if( handleStopScrolling )
+ {
+ mEventData->mUpdateLeftSelectionPosition = ( mEventData->mRightSelectionPosition != handlePosition );
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition;
+
+ if( mEventData->mUpdateLeftSelectionPosition )
+ {
+ mEventData->mLeftSelectionPosition = handlePosition;
+
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+ }
+ }
+ }
+ else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::SELECTING );
- mEventData->mScrollAfterUpdateCursorPosition = true;
+ if( handleStopScrolling )
+ {
+ mEventData->mUpdateRightSelectionPosition = ( mEventData->mLeftSelectionPosition != handlePosition );
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition;
+ if( mEventData->mUpdateRightSelectionPosition )
+ {
+ mEventData->mRightSelectionPosition = handlePosition;
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+ }
}
}
+
mEventData->mDecoratorUpdated = true;
- }
+ } // end ( ( HANDLE_RELEASED == state ) || ( HANDLE_STOP_SCROLLING == state ) )
else if( HANDLE_SCROLLING == state )
{
const float xSpeed = event.p2.mFloat;
const Vector2& actualSize = mVisualModel->GetActualSize();
+ const Vector2 currentScrollPosition = mEventData->mScrollPosition;
mEventData->mScrollPosition.x += xSpeed;
ClampHorizontalScroll( actualSize );
- mEventData->mDecoratorUpdated = true;
- }
+ bool endOfScroll = false;
+ if( Vector2::ZERO == ( currentScrollPosition - mEventData->mScrollPosition ) )
+ {
+ // Notify the decorator there is no more text to scroll.
+ // The decorator won't send more scroll events.
+ mEventData->mDecorator->NotifyEndOfScroll();
+ // Still need to set the position of the handle.
+ endOfScroll = true;
+ }
+
+ // Set the position of the handle.
+ const bool scrollRightDirection = xSpeed > 0.f;
+ const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
+ const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
+
+ if( Event::GRAB_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::GRAB_HANDLE_PANNING );
+
+ Vector2 position = mEventData->mDecorator->GetPosition( GRAB_HANDLE );
+
+ // Position the grag handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width;
+
+ // Get the new handle position.
+ // The grab handle's position is in decorator coords. Need to transforms to text coords.
+ const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+
+ mEventData->mUpdateCursorPosition = mEventData->mPrimaryCursorPosition != handlePosition;
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateCursorPosition;
+ mEventData->mPrimaryCursorPosition = handlePosition;
+ }
+ else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
+ {
+ // TODO: This is recalculating the selection box every time the text is scrolled with the selection handles.
+ // Think if something can be done to save power.
+
+ ChangeState( EventData::SELECTION_HANDLE_PANNING );
+
+ Vector2 position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+
+ // Position the selection handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mVisualModel->mControlSize.width;
+
+ // Get the new handle position.
+ // The selection handle's position is in decorator coords. Need to transforms to text coords.
+ const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+
+ if( leftSelectionHandleEvent )
+ {
+ const bool differentHandles = ( mEventData->mLeftSelectionPosition != handlePosition ) && ( mEventData->mRightSelectionPosition != handlePosition );
+ mEventData->mUpdateLeftSelectionPosition = endOfScroll || differentHandles;
+ if( differentHandles )
+ {
+ mEventData->mLeftSelectionPosition = handlePosition;
+ }
+ }
+ else
+ {
+ const bool differentHandles = ( mEventData->mRightSelectionPosition != handlePosition ) && ( mEventData->mLeftSelectionPosition != handlePosition );
+ mEventData->mUpdateRightSelectionPosition = endOfScroll || differentHandles;
+ if( differentHandles )
+ {
+ mEventData->mRightSelectionPosition = handlePosition;
+ }
+ }
+
+ if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
+ {
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+
+ mEventData->mScrollAfterUpdatePosition = true;
+ }
+ }
+ mEventData->mDecoratorUpdated = true;
+ } // end ( HANDLE_SCROLLING == state )
}
-void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
+void Controller::Impl::OnSelectEvent( const Event& event )
{
if( NULL == mEventData )
{
- // Nothing to do if there is no text input.
+ // Nothing to do if there is no text.
return;
}
- // TODO - Find which word was selected
+ if( mEventData->mSelectionEnabled )
+ {
+ // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
+ const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+ const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+
+ const CharacterIndex leftPosition = mEventData->mLeftSelectionPosition;
+ const CharacterIndex rightPosition = mEventData->mRightSelectionPosition;
- const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
- const Vector<Vector2>::SizeType glyphCount = glyphs.Count();
+ RepositionSelectionHandles( xPosition,
+ yPosition );
- const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
- const Vector<Vector2>::SizeType positionCount = positions.Count();
+ mEventData->mUpdateLeftSelectionPosition = leftPosition != mEventData->mLeftSelectionPosition;
+ mEventData->mUpdateRightSelectionPosition = rightPosition != mEventData->mRightSelectionPosition;
- // Guard against glyphs which did not fit inside the layout
- const Vector<Vector2>::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount;
+ mEventData->mScrollAfterUpdatePosition = ( ( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition ) &&
+ ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition ) );
+ }
+}
- if( count )
+void Controller::Impl::OnSelectAllEvent()
+{
+ if( NULL == mEventData )
{
- float primaryX = positions[0].x + mEventData->mScrollPosition.x;
- float secondaryX = positions[count-1].x + glyphs[count-1].width + mEventData->mScrollPosition.x;
-
- // TODO - multi-line selection
- const Vector<LineRun>& lines = mVisualModel->mLines;
- float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f;
+ // Nothing to do if there is no text.
+ return;
+ }
- mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, primaryX, mEventData->mScrollPosition.y, height );
- mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryX, mEventData->mScrollPosition.y, height );
+ if( mEventData->mSelectionEnabled )
+ {
+ RepositionSelectionHandles( 0u,
+ mLogicalModel->mText.Count() );
- mEventData->mDecorator->ClearHighlights();
- mEventData->mDecorator->AddHighlight( primaryX, mEventData->mScrollPosition.y, secondaryX, height + mEventData->mScrollPosition.y );
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mUpdateLeftSelectionPosition = true;
+ mEventData->mUpdateRightSelectionPosition = true;
}
}
-void Controller::Impl::ChangeState( EventData::State newState )
+void Controller::Impl::RetrieveSelection( std::string& selectedText, bool deleteAfterRetreival )
{
- if( NULL == mEventData )
+ if( mEventData->mLeftSelectionPosition == mEventData->mRightSelectionPosition )
{
- // Nothing to do if there is no text input.
+ // Nothing to select if handles are in the same place.
+ selectedText="";
return;
}
- if( mEventData->mState != newState )
+ //Get start and end position of selection
+ uint32_t startOfSelectedText = mEventData->mLeftSelectionPosition;
+ uint32_t lengthOfSelectedText = mEventData->mRightSelectionPosition - startOfSelectedText;
+
+ // Validate the start and end selection points
+ if( ( startOfSelectedText >= 0 ) && ( ( startOfSelectedText + lengthOfSelectedText ) <= mLogicalModel->mText.Count() ) )
{
- // Show different placeholder when switching between active & inactive
- bool updatePlaceholder( false );
- if( IsShowingPlaceholderText() &&
- ( EventData::INACTIVE == newState ||
- EventData::INACTIVE == mEventData->mState ) )
- {
- updatePlaceholder = true;
- }
+ //Get text as a UTF8 string
+ Vector<Character>& utf32Characters = mLogicalModel->mText;
- mEventData->mState = newState;
+ Utf32ToUtf8( &utf32Characters[startOfSelectedText], lengthOfSelectedText, selectedText );
- if( updatePlaceholder )
+ if ( deleteAfterRetreival ) // Only delete text if copied successfully
{
- ReplaceTextWithPlaceholder();
- mEventData->mDecoratorUpdated = true;
- }
+ // Delete text between handles
+ Vector<Character>& currentText = mLogicalModel->mText;
- if( EventData::INACTIVE == mEventData->mState )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
- mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetPopupActive( false );
- mEventData->mDecoratorUpdated = true;
- }
- else if ( EventData::SELECTING == mEventData->mState )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
- mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
- mEventData->mDecoratorUpdated = true;
- }
- else if( EventData::EDITING == mEventData->mState )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- if( mEventData->mCursorBlinkEnabled )
- {
- mEventData->mDecorator->StartCursorBlink();
- }
- // Grab handle is not shown until a tap is received whilst EDITING
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
- mEventData->mDecoratorUpdated = true;
- }
- else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
- if( mEventData->mCursorBlinkEnabled )
- {
- mEventData->mDecorator->StartCursorBlink();
- }
- mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
- if( mEventData->mSelectionEnabled )
- {
- mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
- mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
- }
- if( mEventData->mGrabHandlePopupEnabled )
- {
- mEventData->mDecorator->SetPopupActive( true );
- }
- mEventData->mDecoratorUpdated = true;
+ Vector<Character>::Iterator first = currentText.Begin() + startOfSelectedText;
+ Vector<Character>::Iterator last = first + lengthOfSelectedText;
+ currentText.Erase( first, last );
}
+ mEventData->mPrimaryCursorPosition = mEventData->mLeftSelectionPosition;
+ mEventData->mScrollAfterDelete = true;
+ mEventData->mDecoratorUpdated = true;
}
}
-LineIndex Controller::Impl::GetClosestLine( float y ) const
+void Controller::Impl::ShowClipboard()
{
- float totalHeight = 0.f;
- LineIndex lineIndex = 0u;
-
- const Vector<LineRun>& lines = mVisualModel->mLines;
- for( LineIndex endLine = lines.Count();
- lineIndex < endLine;
- ++lineIndex )
+ if ( mClipboard )
{
- const LineRun& lineRun = lines[lineIndex];
- totalHeight += lineRun.ascender + -lineRun.descender;
- if( y < totalHeight )
- {
- return lineIndex;
- }
+ mClipboard.ShowClipboard();
}
-
- return lineIndex-1;
}
-CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
- float visualY )
+void Controller::Impl::HideClipboard()
+{
+ if ( mClipboard )
+ {
+ mClipboard.HideClipboard();
+ }
+}
+
+bool Controller::Impl::CopyStringToClipboard( std::string& source )
+{
+ //Send string to clipboard
+ return ( mClipboard && mClipboard.SetItem( source ) );
+}
+
+void Controller::Impl::SendSelectionToClipboard( bool deleteAfterSending )
+{
+ std::string selectedText;
+ RetrieveSelection( selectedText, deleteAfterSending );
+ CopyStringToClipboard( selectedText );
+ ChangeState( EventData::EDITING );
+}
+
+void Controller::Impl::GetTextFromClipboard( unsigned int itemIndex, std::string& retreivedString )
+{
+ if ( mClipboard )
+ {
+ retreivedString = mClipboard.GetItem( itemIndex );
+ }
+}
+
+void Controller::Impl::RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd )
+{
+ if( selectionStart == selectionEnd )
+ {
+ // Nothing to select if handles are in the same place.
+ return;
+ }
+
+ mEventData->mDecorator->ClearHighlights();
+
+ mEventData->mLeftSelectionPosition = selectionStart;
+ mEventData->mRightSelectionPosition = selectionEnd;
+
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+ const GlyphInfo* const glyphsBuffer = mVisualModel->mGlyphs.Begin();
+ const Vector2* const positionsBuffer = mVisualModel->mGlyphPositions.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ const CharacterIndex* const glyphToCharacterBuffer = mVisualModel->mGlyphsToCharacters.Begin();
+ const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
+
+ // TODO: Better algorithm to create the highlight box.
+ // TODO: Multi-line.
+
+ // Get the height of the line.
+ const Vector<LineRun>& lines = mVisualModel->mLines;
+ const LineRun& firstLine = *lines.Begin();
+ const float height = firstLine.ascender + -firstLine.descender;
+
+ // Swap the indices if the start is greater than the end.
+ const bool indicesSwapped = ( selectionStart > selectionEnd );
+ if( indicesSwapped )
+ {
+ std::swap( selectionStart, selectionEnd );
+ }
+
+ // Get the indices to the first and last selected glyphs.
+ const CharacterIndex selectionEndMinusOne = selectionEnd - 1u;
+ const GlyphIndex glyphStart = *( charactersToGlyphBuffer + selectionStart );
+ const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + selectionEndMinusOne );
+ const GlyphIndex glyphEnd = *( charactersToGlyphBuffer + selectionEndMinusOne ) + ( ( numberOfGlyphs > 0 ) ? numberOfGlyphs - 1u : 0u );
+
+ // Check if the first glyph is a ligature that must be broken like Latin ff, fi, or Arabic ﻻ, etc which needs special code.
+ const Length numberOfCharactersStart = *( charactersPerGlyphBuffer + glyphStart );
+ bool splitStartGlyph = ( numberOfCharactersStart > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionStart ) );
+
+ // Check if the last glyph is a ligature that must be broken like Latin ff, fi, or Arabic ﻻ, etc which needs special code.
+ const Length numberOfCharactersEnd = *( charactersPerGlyphBuffer + glyphEnd );
+ bool splitEndGlyph = ( glyphStart != glyphEnd ) && ( numberOfCharactersEnd > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionEndMinusOne ) );
+
+ // Tell the decorator to swap the selection handles if needed.
+ mEventData->mDecorator->SwapSelectionHandlesEnabled( firstLine.direction != indicesSwapped );
+
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+
+ // Traverse the glyphs.
+ for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
+ {
+ const GlyphInfo& glyph = *( glyphsBuffer + index );
+ const Vector2& position = *( positionsBuffer + index );
+
+ if( splitStartGlyph )
+ {
+ // If the first glyph is a ligature that must be broken it may be needed to add only part of the glyph to the highlight box.
+
+ const float glyphAdvance = glyph.advance / static_cast<float>( numberOfCharactersStart );
+ const CharacterIndex interGlyphIndex = selectionStart - *( glyphToCharacterBuffer + glyphStart );
+ // Get the direction of the character.
+ CharacterDirection isCurrentRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
+ {
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + selectionStart );
+ }
+
+ // The end point could be in the middle of the ligature.
+ // Calculate the number of characters selected.
+ const Length numberOfCharacters = ( glyphStart == glyphEnd ) ? ( selectionEnd - selectionStart ) : ( numberOfCharactersStart - interGlyphIndex );
+
+ const float xPosition = position.x - glyph.xBearing + offset.x + glyphAdvance * static_cast<float>( isCurrentRightToLeft ? ( numberOfCharactersStart - interGlyphIndex - numberOfCharacters ) : interGlyphIndex );
+
+ mEventData->mDecorator->AddHighlight( xPosition,
+ offset.y,
+ xPosition + static_cast<float>( numberOfCharacters ) * glyphAdvance,
+ height );
+
+ splitStartGlyph = false;
+ continue;
+ }
+
+ if( splitEndGlyph && ( index == glyphEnd ) )
+ {
+ // Equally, if the last glyph is a ligature that must be broken it may be needed to add only part of the glyph to the highlight box.
+
+ const float glyphAdvance = glyph.advance / static_cast<float>( numberOfCharactersEnd );
+ const CharacterIndex interGlyphIndex = selectionEnd - *( glyphToCharacterBuffer + glyphEnd );
+ // Get the direction of the character.
+ CharacterDirection isCurrentRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
+ {
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + selectionEnd );
+ }
+
+ const Length numberOfCharacters = numberOfCharactersEnd - interGlyphIndex;
+
+ const float xPosition = position.x - glyph.xBearing + offset.x + ( isCurrentRightToLeft ? ( glyphAdvance * static_cast<float>( numberOfCharacters ) ) : 0.f );
+ mEventData->mDecorator->AddHighlight( xPosition,
+ offset.y,
+ xPosition + static_cast<float>( interGlyphIndex ) * glyphAdvance,
+ height );
+
+ splitEndGlyph = false;
+ continue;
+ }
+
+ const float xPosition = position.x - glyph.xBearing + offset.x;
+ mEventData->mDecorator->AddHighlight( xPosition, offset.y, xPosition + glyph.advance, height );
+ }
+
+ CursorInfo primaryCursorInfo;
+ GetCursorPosition( mEventData->mLeftSelectionPosition,
+ primaryCursorInfo );
+
+ CursorInfo secondaryCursorInfo;
+ GetCursorPosition( mEventData->mRightSelectionPosition,
+ secondaryCursorInfo );
+
+ const Vector2 primaryPosition = primaryCursorInfo.primaryPosition + offset;
+ const Vector2 secondaryPosition = secondaryCursorInfo.primaryPosition + offset;
+
+ mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, primaryPosition.x, primaryPosition.y, primaryCursorInfo.lineHeight );
+
+ mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryPosition.x, secondaryPosition.y, secondaryCursorInfo.lineHeight );
+
+ // Set the flag to update the decorator.
+ mEventData->mDecoratorUpdated = true;
+}
+
+void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
+{
+ if( NULL == mEventData )
+ {
+ // Nothing to do if there is no text input.
+ return;
+ }
+
+ if( IsShowingPlaceholderText() )
+ {
+ // Nothing to do if there is the place-holder text.
+ return;
+ }
+
+ const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
+ const Length numberOfLines = mVisualModel->mLines.Count();
+ if( 0 == numberOfGlyphs ||
+ 0 == numberOfLines )
+ {
+ // Nothing to do if there is no text.
+ return;
+ }
+
+ // Find which word was selected
+ CharacterIndex selectionStart( 0 );
+ CharacterIndex selectionEnd( 0 );
+ FindSelectionIndices( visualX, visualY, selectionStart, selectionEnd );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
+
+ if( selectionStart == selectionEnd )
+ {
+ ChangeState( EventData::EDITING );
+ // Nothing to select. i.e. a white space, out of bounds
+ return;
+ }
+
+ RepositionSelectionHandles( selectionStart, selectionEnd );
+}
+
+void Controller::Impl::SetPopupButtons()
+{
+ /**
+ * Sets the Popup buttons to be shown depending on State.
+ *
+ * If SELECTING : CUT & COPY + ( PASTE & CLIPBOARD if content available to paste )
+ *
+ * If EDITING_WITH_POPUP : SELECT & SELECT_ALL
+ */
+
+ TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::NONE;
+
+ if ( ( EventData::SELECTING == mEventData->mState ) || ( EventData::SELECTION_CHANGED == mEventData->mState ) )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::CUT | TextSelectionPopup::COPY );
+
+ if ( !IsClipboardEmpty() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) );
+ }
+
+ if ( !mEventData->mAllTextSelected )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::SELECT_ALL ) );
+ }
+ }
+ else if ( EventData::EDITING_WITH_POPUP == mEventData->mState )
+ {
+ if ( mLogicalModel->mText.Count() && !IsShowingPlaceholderText())
+ {
+ buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL );
+ }
+
+ if ( !IsClipboardEmpty() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::CLIPBOARD ) );
+ }
+ }
+
+ mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+}
+
+void Controller::Impl::ChangeState( EventData::State newState )
+{
+ if( NULL == mEventData )
+ {
+ // Nothing to do if there is no text input.
+ return;
+ }
+
+ if( mEventData->mState != newState )
+ {
+ mEventData->mState = newState;
+
+ if( EventData::INACTIVE == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetPopupActive( false );
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ }
+ else if ( EventData::INTERRUPTED == mEventData->mState)
+ {
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetPopupActive( false );
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ }
+ else if ( EventData::SELECTING == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ mEventData->mDecoratorUpdated = true;
+ }
+ else if ( EventData::SELECTION_CHANGED == mEventData->mState )
+ {
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ mEventData->mDecoratorUpdated = true;
+ }
+ else if( EventData::EDITING == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ // Grab handle is not shown until a tap is received whilst EDITING
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ }
+ else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ if( mEventData->mSelectionEnabled )
+ {
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ }
+ else
+ {
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ }
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ SetPopupButtons();
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ HideClipboard();
+ mEventData->mDecoratorUpdated = true;
+ }
+ else if( EventData::EDITING_WITH_GRAB_HANDLE == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ // Grab handle is not shown until a tap is received whilst EDITING
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ HideClipboard();
+ }
+ else if ( EventData::SELECTION_HANDLE_PANNING == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ mEventData->mDecorator->StopCursorBlink();
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ }
+ else if ( EventData::GRAB_HANDLE_PANNING == mEventData->mState )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ if( mEventData->mCursorBlinkEnabled )
+ {
+ mEventData->mDecorator->StartCursorBlink();
+ }
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ mEventData->mDecorator->SetPopupActive( false );
+ }
+ mEventData->mDecoratorUpdated = true;
+ }
+ }
+}
+
+LineIndex Controller::Impl::GetClosestLine( float y ) const
+{
+ float totalHeight = 0.f;
+ LineIndex lineIndex = 0u;
+
+ 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;
+ }
+ }
+
+ if( lineIndex == 0 )
+ {
+ return 0;
+ }
+
+ return lineIndex-1;
+}
+
+void Controller::Impl::FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex )
+{
+ CharacterIndex hitCharacter = GetClosestCursorIndex( visualX, visualY );
+ if( hitCharacter >= mLogicalModel->mText.Count() )
+ {
+ // Selection out of bounds.
+ return;
+ }
+
+ startIndex = hitCharacter;
+ endIndex = hitCharacter;
+
+ if( !TextAbstraction::IsWhiteSpace( mLogicalModel->mText[hitCharacter] ) )
+ {
+ // Find the start and end of the text
+ for( startIndex = hitCharacter; startIndex > 0; --startIndex )
+ {
+ Character charCode = mLogicalModel->mText[ startIndex-1 ];
+ if( TextAbstraction::IsWhiteSpace( charCode ) )
+ {
+ break;
+ }
+ }
+ const CharacterIndex pastTheEnd = mLogicalModel->mText.Count();
+ for( endIndex = hitCharacter + 1u; endIndex < pastTheEnd; ++endIndex )
+ {
+ Character charCode = mLogicalModel->mText[ endIndex ];
+ if( TextAbstraction::IsWhiteSpace( charCode ) )
+ {
+ break;
+ }
+ }
+ }
+}
+
+CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
+ float visualY )
{
if( NULL == mEventData )
{
// Get the glyphs per character table.
const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
// If the vector is void, there is no right to left characters.
const bool hasRightToLeftCharacters = NULL != visualToLogicalBuffer;
// The character in logical order.
const CharacterIndex characterLogicalOrderIndex = hasRightToLeftCharacters ? *( visualToLogicalBuffer + visualIndex ) : visualIndex;
+ // Get the script of the character.
+ const Script script = mLogicalModel->GetScript( characterLogicalOrderIndex );
+
// The first glyph for that character in logical order.
const GlyphIndex glyphLogicalOrderIndex = *( charactersToGlyphBuffer + characterLogicalOrderIndex );
-
// The number of glyphs for that character
const Length numberOfGlyphs = *( glyphsPerCharacterBuffer + characterLogicalOrderIndex );
const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
- const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+ // Prevents to jump the whole Latin ligatures like fi, ff, or Arabic ﻻ...
+ const Length numberOfCharactersInLigature = HasLigatureMustBreak( script ) ? *( charactersPerGlyphBuffer + glyphLogicalOrderIndex ) : 1u;
+ const float glyphAdvance = glyphMetrics.advance / static_cast<float>( numberOfCharactersInLigature );
+
+ for( GlyphIndex index = 0u; !matched && ( index < numberOfCharactersInLigature ); ++index )
+ {
+ // Find the mid-point of the area containing the glyph
+ const float glyphCenter = -glyphMetrics.xBearing + position.x + ( static_cast<float>( index ) + 0.5f ) * glyphAdvance;
+
+ if( visualX < glyphCenter )
+ {
+ visualIndex += index;
+ matched = true;
+ break;
+ }
+ }
- if( visualX < glyphX )
+ if( matched )
{
- matched = true;
break;
}
}
visualIndex = endCharacter;
}
- return hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
+ logicalIndex = hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex );
+
+ return logicalIndex;
}
void Controller::Impl::GetCursorPosition( CharacterIndex logical,
// 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;
+ const bool isLastPosition = mLogicalModel->mText.Count() == logical;
if( isFirstPosition && isLastPosition )
{
- // There is zero characters. Get the default font.
-
- FontId defaultFontId = 0u;
- if( NULL == mFontDefaults )
- {
- defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
- EMPTY_STRING );
- }
- else
- {
- defaultFontId = mFontDefaults->GetFontId( mFontClient );
- }
-
- Text::FontMetrics fontMetrics;
- mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
-
- cursorInfo.lineHeight = fontMetrics.ascender - fontMetrics.descender;
+ // There is zero characters. Get the default font's line height.
+ cursorInfo.lineHeight = GetDefaultFontLineHeight();
cursorInfo.primaryCursorHeight = cursorInfo.lineHeight;
- cursorInfo.primaryPosition.x = 0.f;
+ cursorInfo.primaryPosition.x = 1.f;
cursorInfo.primaryPosition.y = 0.f;
// Nothing else to do.
return;
}
- // Get the previous logical index.
- const CharacterIndex previousLogical = isFirstPosition ? 0u : logical - 1u;
-
- // Decrease the logical index if it's the last one.
- if( isLastPosition )
- {
- --logical;
- }
+ // 'logical' is the logical 'cursor' index.
+ // Get the next and current logical 'character' index.
+ const CharacterIndex nextCharacterIndex = logical;
+ const CharacterIndex characterIndex = isFirstPosition ? logical : logical - 1u;
- // Get the direction of the character and the previous one.
+ // Get the direction of the character and the next one.
const CharacterDirection* const modelCharacterDirectionsBuffer = ( 0u != mLogicalModel->mCharacterDirections.Count() ) ? mLogicalModel->mCharacterDirections.Begin() : NULL;
CharacterDirection isCurrentRightToLeft = false;
- CharacterDirection isPreviousRightToLeft = false;
+ CharacterDirection isNextRightToLeft = false;
if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
{
- isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + logical );
- isPreviousRightToLeft = *( modelCharacterDirectionsBuffer + previousLogical );
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + characterIndex );
+ isNextRightToLeft = *( modelCharacterDirectionsBuffer + nextCharacterIndex );
}
// Get the line where the character is laid-out.
- const LineRun* modelLines = mVisualModel->mLines.Begin();
+ const LineRun* const modelLines = mVisualModel->mLines.Begin();
- const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( logical );
+ const LineIndex lineIndex = mVisualModel->GetLineOfCharacter( characterIndex );
const LineRun& line = *( modelLines + lineIndex );
// Get the paragraph's direction.
// Check whether there is an alternative position:
- cursorInfo.isSecondaryCursor = ( isCurrentRightToLeft != isPreviousRightToLeft ) ||
- ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
+ cursorInfo.isSecondaryCursor = ( !isLastPosition && ( isCurrentRightToLeft != isNextRightToLeft ) ) ||
+ ( isLastPosition && ( isRightToLeftParagraph != isCurrentRightToLeft ) );
// Set the line height.
cursorInfo.lineHeight = line.ascender + -line.descender;
- // Convert the cursor position into the glyph position.
- CharacterIndex characterIndex = logical;
- if( cursorInfo.isSecondaryCursor &&
- ( isRightToLeftParagraph != isCurrentRightToLeft ) )
+ // Calculate the primary cursor.
+
+ CharacterIndex index = characterIndex;
+ if( cursorInfo.isSecondaryCursor )
{
- characterIndex = previousLogical;
+ // If there is a secondary position, the primary cursor may be in a different place than the logical index.
+
+ if( isLastPosition )
+ {
+ // The position of the cursor after the last character needs special
+ // care depending on its direction and the direction of the paragraph.
+
+ // 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.
+
+ // TODO: check for more than one line!
+ index = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u;
+ index = mLogicalModel->GetLogicalCharacterIndex( index );
+ }
+ else
+ {
+ index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? characterIndex : nextCharacterIndex;
+ }
}
- const GlyphIndex currentGlyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
- const Length numberOfCharacters = *( mVisualModel->mCharactersPerGlyph.Begin() +currentGlyphIndex );
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ const CharacterIndex* const glyphsToCharactersBuffer = mVisualModel->mGlyphsToCharacters.Begin();
+ const Vector2* const glyphPositionsBuffer = mVisualModel->mGlyphPositions.Begin();
+
+ // Convert the cursor position into the glyph position.
+ const GlyphIndex primaryGlyphIndex = *( charactersToGlyphBuffer + index );
+ const Length primaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index );
+ const Length primaryNumberOfCharacters = *( charactersPerGlyphBuffer + primaryGlyphIndex );
// Get the metrics for the group of glyphs.
GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( currentGlyphIndex,
- numberOfGlyphs,
+ GetGlyphsMetrics( primaryGlyphIndex,
+ primaryNumberOfGlyphs,
glyphMetrics,
mVisualModel,
mFontClient );
- float interGlyphAdvance = 0.f;
+ // Whether to add the glyph's advance to the cursor position.
+ // i.e if the paragraph is left to right and the logical cursor is zero, the position is the position of the first glyph and the advance is not added,
+ // if the logical cursor is one, the position is the position of the first glyph and the advance is added.
+ // A 'truth table' was build and an online Karnaugh map tool was used to simplify the logic.
+ //
+ // FLCP A
+ // ------
+ // 0000 1
+ // 0001 1
+ // 0010 0
+ // 0011 0
+ // 0100 1
+ // 0101 0
+ // 0110 1
+ // 0111 0
+ // 1000 0
+ // 1001 x
+ // 1010 x
+ // 1011 1
+ // 1100 x
+ // 1101 x
+ // 1110 x
+ // 1111 x
+ //
+ // Where F -> isFirstPosition
+ // L -> isLastPosition
+ // C -> isCurrentRightToLeft
+ // P -> isRightToLeftParagraph
+ // A -> Whether to add the glyph's advance.
+
+ const bool addGlyphAdvance = ( ( isLastPosition && !isRightToLeftParagraph ) ||
+ ( isFirstPosition && isRightToLeftParagraph ) ||
+ ( !isFirstPosition && !isLastPosition && !isCurrentRightToLeft ) );
+
+ float glyphAdvance = addGlyphAdvance ? glyphMetrics.advance : 0.f;
+
if( !isLastPosition &&
- ( numberOfCharacters > 1u ) )
+ ( primaryNumberOfCharacters > 1u ) )
{
- const CharacterIndex firstIndex = *( mVisualModel->mGlyphsToCharacters.Begin() + currentGlyphIndex );
- interGlyphAdvance = static_cast<float>( characterIndex - firstIndex ) * glyphMetrics.advance / static_cast<float>( numberOfCharacters );
- }
+ const CharacterIndex firstIndex = *( glyphsToCharactersBuffer + primaryGlyphIndex );
- // Get the glyph position and x bearing.
- const Vector2& currentPosition = *( mVisualModel->mGlyphPositions.Begin() + currentGlyphIndex );
-
- // Set the cursor's height.
- cursorInfo.primaryCursorHeight = glyphMetrics.fontHeight;
-
- // Set the position.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + currentPosition.x + ( isCurrentRightToLeft ? glyphMetrics.advance : interGlyphAdvance );
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
-
- if( isLastPosition )
- {
- // The position of the cursor after the last character needs special
- // care depending on its direction and the direction of the paragraph.
+ bool isCurrentRightToLeft = false;
+ if( NULL != modelCharacterDirectionsBuffer ) // If modelCharacterDirectionsBuffer is NULL, it means the whole text is left to right.
+ {
+ isCurrentRightToLeft = *( modelCharacterDirectionsBuffer + index );
+ }
- if( cursorInfo.isSecondaryCursor )
+ Length numberOfGlyphAdvance = ( isFirstPosition ? 0u : 1u ) + characterIndex - firstIndex;
+ if( isCurrentRightToLeft )
{
- // 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.
+ numberOfGlyphAdvance = primaryNumberOfCharacters - numberOfGlyphAdvance;
+ }
- // TODO: check for more than one line!
- characterIndex = isRightToLeftParagraph ? line.characterRun.characterIndex : line.characterRun.characterIndex + line.characterRun.numberOfCharacters - 1u;
- characterIndex = mLogicalModel->GetLogicalCharacterIndex( characterIndex );
+ glyphAdvance = static_cast<float>( numberOfGlyphAdvance ) * glyphMetrics.advance / static_cast<float>( primaryNumberOfCharacters );
+ }
+
+ // Get the glyph position and x bearing.
+ const Vector2& primaryPosition = *( glyphPositionsBuffer + primaryGlyphIndex );
- const GlyphIndex glyphIndex = *( mVisualModel->mCharactersToGlyph.Begin() + characterIndex );
- const Length numberOfGlyphs = *( mVisualModel->mGlyphsPerCharacter.Begin() + characterIndex );
+ // Set the primary cursor's height.
+ cursorInfo.primaryCursorHeight = cursorInfo.isSecondaryCursor ? 0.5f * glyphMetrics.fontHeight : glyphMetrics.fontHeight;
- const Vector2& position = *( mVisualModel->mGlyphPositions.Begin() + glyphIndex );
+ // Set the primary cursor's position.
+ cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + primaryPosition.x + glyphAdvance;
+ cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( glyphIndex,
- numberOfGlyphs,
- glyphMetrics,
- mVisualModel,
- mFontClient );
+ // Calculate the secondary cursor.
- cursorInfo.primaryPosition.x = -glyphMetrics.xBearing + position.x + ( isRightToLeftParagraph ? 0.f : glyphMetrics.advance );
+ if( cursorInfo.isSecondaryCursor )
+ {
+ // Set the secondary cursor's height.
+ cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
- cursorInfo.primaryPosition.y = line.ascender - glyphMetrics.ascender;
- }
- else
+ CharacterIndex index = characterIndex;
+ if( !isLastPosition )
{
- if( !isCurrentRightToLeft )
- {
- cursorInfo.primaryPosition.x += glyphMetrics.advance;
- }
- else
- {
- cursorInfo.primaryPosition.x -= glyphMetrics.advance;
- }
+ index = ( isRightToLeftParagraph == isCurrentRightToLeft ) ? nextCharacterIndex : characterIndex;
}
- }
- // 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 );
+ const GlyphIndex secondaryGlyphIndex = *( charactersToGlyphBuffer + index );
+ const Length secondaryNumberOfGlyphs = *( glyphsPerCharacterBuffer + index );
- // Get the glyph position.
- const Vector2& previousPosition = *( mVisualModel->mGlyphPositions.Begin() + previousGlyphIndex );
+ const Vector2& secondaryPosition = *( glyphPositionsBuffer + secondaryGlyphIndex );
- // Get the metrics for the group of glyphs.
- GlyphMetrics glyphMetrics;
- GetGlyphsMetrics( previousGlyphIndex,
- numberOfGlyphs,
+ GetGlyphsMetrics( secondaryGlyphIndex,
+ secondaryNumberOfGlyphs,
glyphMetrics,
mVisualModel,
mFontClient );
- // Set the cursor position and height.
- cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + previousPosition.x + ( ( ( isLastPosition && !isCurrentRightToLeft ) ||
- ( !isLastPosition && isCurrentRightToLeft ) ) ? glyphMetrics.advance : 0.f );
-
- cursorInfo.secondaryCursorHeight = 0.5f * glyphMetrics.fontHeight;
-
+ // Set the secondary cursor's position.
+ cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + secondaryPosition.x + ( isCurrentRightToLeft ? 0.f : glyphMetrics.advance );
cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
-
- // Update the primary cursor height as well.
- cursorInfo.primaryCursorHeight *= 0.5f;
}
}
CharacterIndex cursorIndex = mEventData->mPrimaryCursorPosition;
- const Script script = mLogicalModel->GetScript( index );
- const GlyphIndex* charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
- const Length* charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
+
+ GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
+ Length numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
- Length numberOfCharacters = 0u;
- if( TextAbstraction::LATIN == script )
+ if( numberOfCharacters > 1u )
{
- // Prevents to jump the whole Latin ligatures like fi, ff, ...
- numberOfCharacters = 1u;
+ const Script script = mLogicalModel->GetScript( index );
+ if( HasLigatureMustBreak( script ) )
+ {
+ // Prevents to jump the whole Latin ligatures like fi, ff, or Arabic ﻻ, ...
+ numberOfCharacters = 1u;
+ }
}
else
{
- GlyphIndex glyphIndex = *( charactersToGlyphBuffer + index );
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
-
while( 0u == numberOfCharacters )
{
- numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
++glyphIndex;
+ numberOfCharacters = *( charactersPerGlyphBuffer + glyphIndex );
}
}
void Controller::Impl::UpdateCursorPosition()
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::UpdateCursorPosition %p\n", this );
if( NULL == mEventData )
{
// Nothing to do if there is no text input.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition no event data\n" );
return;
}
- CursorInfo cursorInfo;
- GetCursorPosition( mEventData->mPrimaryCursorPosition,
- cursorInfo );
+ if( IsShowingPlaceholderText() )
+ {
+ // Do not want to use the place-holder text to set the cursor position.
- const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
- const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+ // Use the line's height of the font's family set to set the cursor's size.
+ // If there is no font's family set, use the default font.
+ // Use the current alignment to place the cursor at the beginning, center or end of the box.
- // Sets the cursor position.
- mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorPosition.x,
- cursorPosition.y,
- cursorInfo.primaryCursorHeight,
- cursorInfo.lineHeight );
+ float lineHeight = 0.f;
- // Sets the grab handle position.
- mEventData->mDecorator->SetPosition( GRAB_HANDLE,
- cursorPosition.x,
- cursorPosition.y,
- cursorInfo.lineHeight );
+ FontId defaultFontId = 0u;
+ if( NULL == mFontDefaults )
+ {
+ defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
+ EMPTY_STRING );
+ }
+ else
+ {
+ defaultFontId = mFontDefaults->GetFontId( mFontClient );
+ }
- if( cursorInfo.isSecondaryCursor )
- {
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
- mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
- cursorInfo.secondaryPosition.x + offset.x,
- cursorInfo.secondaryPosition.y + offset.y,
- cursorInfo.secondaryCursorHeight,
- cursorInfo.lineHeight );
+ Text::FontMetrics fontMetrics;
+ mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
+
+ lineHeight = fontMetrics.ascender - fontMetrics.descender;
+
+
+ Vector2 cursorPosition;
+
+ switch( mLayoutEngine.GetHorizontalAlignment() )
+ {
+ case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
+ {
+ cursorPosition.x = 1.f;
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
+ {
+ cursorPosition.x = floor( 0.5f * mVisualModel->mControlSize.width );
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
+ {
+ cursorPosition.x = mVisualModel->mControlSize.width;
+ break;
+ }
+ }
+
+ switch( mLayoutEngine.GetVerticalAlignment() )
+ {
+ case LayoutEngine::VERTICAL_ALIGN_TOP:
+ {
+ cursorPosition.y = 0.f;
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_CENTER:
+ {
+ cursorPosition.y = floorf( 0.5f * ( mVisualModel->mControlSize.height - lineHeight ) );
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ {
+ cursorPosition.y = mVisualModel->mControlSize.height - lineHeight;
+ break;
+ }
+ }
+
+ mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorPosition.x,
+ cursorPosition.y,
+ lineHeight,
+ lineHeight );
}
else
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ CursorInfo cursorInfo;
+ GetCursorPosition( mEventData->mPrimaryCursorPosition,
+ cursorInfo );
+
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+ // Sets the cursor position.
+ mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.primaryCursorHeight,
+ cursorInfo.lineHeight );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Primary cursor position: %f,%f\n", cursorPosition.x, cursorPosition.y );
+
+ // Sets the grab handle position.
+ mEventData->mDecorator->SetPosition( GRAB_HANDLE,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.lineHeight );
+
+ if( cursorInfo.isSecondaryCursor )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
+ mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
+ cursorInfo.secondaryPosition.x + offset.x,
+ cursorInfo.secondaryPosition.y + offset.y,
+ cursorInfo.secondaryCursorHeight,
+ cursorInfo.lineHeight );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
+ }
+ else
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ }
}
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition\n" );
}
void Controller::Impl::UpdateSelectionHandle( HandleType handleType )
cursorPosition.x,
cursorPosition.y,
cursorInfo.lineHeight );
+
+ // If selection handle at start of the text and other at end of the text then all text is selected.
+ const CharacterIndex startOfSelection = std::min( mEventData->mLeftSelectionPosition, mEventData->mRightSelectionPosition );
+ const CharacterIndex endOfSelection = std::max ( mEventData->mLeftSelectionPosition, mEventData->mRightSelectionPosition );
+ mEventData->mAllTextSelected = ( startOfSelection == 0 ) && ( endOfSelection == mLogicalModel->mText.Count() );
}
void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize )
{
// Clamp between -space & 0 (and the text alignment).
- if( actualSize.width > mControlSize.width )
+ if( actualSize.width > mVisualModel->mControlSize.width )
{
- const float space = ( actualSize.width - mControlSize.width ) + mAlignmentOffset.x;
+ const float space = ( actualSize.width - mVisualModel->mControlSize.width ) + mAlignmentOffset.x;
mEventData->mScrollPosition.x = ( mEventData->mScrollPosition.x < -space ) ? -space : mEventData->mScrollPosition.x;
mEventData->mScrollPosition.x = ( mEventData->mScrollPosition.x > -mAlignmentOffset.x ) ? -mAlignmentOffset.x : mEventData->mScrollPosition.x;
void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize )
{
// Clamp between -space & 0 (and the text alignment).
- if( actualSize.height > mControlSize.height )
+ if( actualSize.height > mVisualModel->mControlSize.height )
{
- const float space = ( actualSize.height - mControlSize.height ) + mAlignmentOffset.y;
+ const float space = ( actualSize.height - mVisualModel->mControlSize.height ) + mAlignmentOffset.y;
mEventData->mScrollPosition.y = ( mEventData->mScrollPosition.y < -space ) ? -space : mEventData->mScrollPosition.y;
mEventData->mScrollPosition.y = ( mEventData->mScrollPosition.y > -mAlignmentOffset.y ) ? -mAlignmentOffset.y : mEventData->mScrollPosition.y;
}
}
-void Controller::Impl::ScrollToMakeCursorVisible()
+void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position )
{
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return;
- }
-
- const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
-
Vector2 offset;
bool updateDecorator = false;
- if( primaryCursorPosition.x < 0.f )
+ if( position.x < 0.f )
{
- offset.x = -primaryCursorPosition.x;
+ offset.x = -position.x;
mEventData->mScrollPosition.x += offset.x;
updateDecorator = true;
}
- else if( primaryCursorPosition.x > mControlSize.width )
+ else if( position.x > mVisualModel->mControlSize.width )
{
- offset.x = mControlSize.width - primaryCursorPosition.x;
+ offset.x = mVisualModel->mControlSize.width - position.x;
mEventData->mScrollPosition.x += offset.x;
updateDecorator = true;
}
// TODO : calculate the vertical scroll.
}
+void Controller::Impl::ScrollTextToMatchCursor()
+{
+ // Get the current cursor position in decorator coords.
+ const Vector2& currentCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
+
+ // Calculate the new cursor position.
+ CursorInfo cursorInfo;
+ GetCursorPosition( mEventData->mPrimaryCursorPosition,
+ cursorInfo );
+
+ // Calculate the offset to match the cursor position before the character was deleted.
+ mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x;
+
+ ClampHorizontalScroll( mVisualModel->GetActualSize() );
+
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+ // Sets the cursor position.
+ mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.primaryCursorHeight,
+ cursorInfo.lineHeight );
+
+ // Sets the grab handle position.
+ mEventData->mDecorator->SetPosition( GRAB_HANDLE,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.lineHeight );
+
+ if( cursorInfo.isSecondaryCursor )
+ {
+ mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
+ cursorInfo.secondaryPosition.x + offset.x,
+ cursorInfo.secondaryPosition.y + offset.y,
+ cursorInfo.secondaryCursorHeight,
+ cursorInfo.lineHeight );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
+ }
+
+ // Set which cursors are active according the state.
+ if( ( EventData::EDITING == mEventData->mState ) ||
+ ( EventData::EDITING_WITH_POPUP == mEventData->mState ) ||
+ ( EventData::GRAB_HANDLE_PANNING == mEventData->mState ) )
+ {
+ if( cursorInfo.isSecondaryCursor )
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
+ }
+ else
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ }
+ }
+ else
+ {
+ mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+ }
+}
+
void Controller::Impl::RequestRelayout()
{
mControlInterface.RequestTextRelayout();
projects / platform / core / uifw / dali-toolkit.git / blobdiff