// 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>
+#include <dali-toolkit/internal/text/character-set-conversion.h>
+#include <dali-toolkit/internal/text/layouts/layout-parameters.h>
+#include <dali-toolkit/internal/text/multi-language-support.h>
+#include <dali-toolkit/internal/text/script-run.h>
+#include <dali-toolkit/internal/text/segmentation.h>
+#include <dali-toolkit/internal/text/shaper.h>
+#include <dali-toolkit/internal/text/text-io.h>
+#include <dali-toolkit/internal/text/text-view.h>
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.
EventData::EventData( DecoratorPtr decorator )
: mDecorator( decorator ),
- mPlaceholderText(),
+ mPlaceholderTextActive(),
+ mPlaceholderTextInactive(),
+ mPlaceholderTextColor( 0.8f, 0.8f, 0.8f, 0.8f ),
mEventQueue(),
mScrollPosition(),
mState( INACTIVE ),
mPrimaryCursorPosition( 0u ),
- mSecondaryCursorPosition( 0u ),
+ mLeftSelectionPosition( 0u ),
+ mRightSelectionPosition( 0u ),
+ mPreEditStartPosition( 0u ),
+ mPreEditLength( 0u ),
+ mIsShowingPlaceholderText( false ),
+ mPreEditFlag( false ),
mDecoratorUpdated( false ),
mCursorBlinkEnabled( true ),
mGrabHandleEnabled( true ),
- mGrabHandlePopupEnabled( false ),
- mSelectionEnabled( false ),
+ mGrabHandlePopupEnabled( true ),
+ mSelectionEnabled( true ),
mHorizontalScrollingEnabled( true ),
mVerticalScrollingEnabled( false ),
mUpdateCursorPosition( false ),
- mScrollAfterUpdateCursorPosition( false )
+ mUpdateLeftSelectionPosition( false ),
+ mUpdateRightSelectionPosition( false ),
+ mScrollAfterUpdatePosition( false ),
+ mScrollAfterDelete( 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::GRAB_HANDLE_EVENT:
+ case Event::LEFT_SELECTION_HANDLE_EVENT:
+ case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
{
- OnGrabHandleEvent( *iter );
+ OnHandleEvent( *iter );
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->mScrollAfterDelete )
+ {
+ ScrollTextToMatchCursor();
+ mEventData->mDecoratorUpdated = true;
+ mEventData->mScrollAfterDelete = false;
+ }
+ else
+ {
+ bool leftScroll = false;
+ bool rightScroll = false;
+
+ if( mEventData->mUpdateLeftSelectionPosition )
+ {
+ UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
+
+ if( mEventData->mScrollAfterUpdatePosition )
+ {
+ const Vector2& leftHandlePosition = mEventData->mDecorator->GetPosition( LEFT_SELECTION_HANDLE );
+
+ ScrollToMakePositionVisible( leftHandlePosition );
+ leftScroll = true;
+ }
+
+ mEventData->mDecoratorUpdated = true;
+ mEventData->mUpdateLeftSelectionPosition = false;
+ }
+
+ if( mEventData->mUpdateRightSelectionPosition )
+ {
+ UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
+
+ if( mEventData->mScrollAfterUpdatePosition )
+ {
+ const Vector2& rightHandlePosition = mEventData->mDecorator->GetPosition( RIGHT_SELECTION_HANDLE );
+
+ ScrollToMakePositionVisible( rightHandlePosition );
+ rightScroll = true;
+ }
+
+ mEventData->mDecoratorUpdated = true;
+ mEventData->mUpdateRightSelectionPosition = false;
+ }
+
+ if( leftScroll || rightScroll )
+ {
+ mEventData->mScrollAfterUpdatePosition = false;
+ }
+ }
mEventData->mEventQueue.clear();
- return mEventData->mDecoratorUpdated;
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents\n" );
+
+ const bool decoratorUpdated = mEventData->mDecoratorUpdated;
+ mEventData->mDecoratorUpdated = false;
+
+ return decoratorUpdated;
}
-void Controller::Impl::OnKeyboardFocus( bool hasFocus )
+void Controller::Impl::UpdateModel( OperationsMask operationsRequired )
{
- if( NULL == mEventData )
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mOperationsPending & operationsRequired );
+
+ Vector<Character>& utf32Characters = mLogicalModel->mText;
+
+ const Length numberOfCharacters = utf32Characters.Count();
+
+ Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
+ if( GET_LINE_BREAKS & operations )
{
- // Nothing to do if there is no text input.
- return;
+ // Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to
+ // calculate the bidirectional info for each 'paragraph'.
+ // It's also used to layout the text (where it should be a new line) or to shape the text (text in different lines
+ // is not shaped together).
+ lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK );
+
+ SetLineBreakInfo( utf32Characters,
+ lineBreakInfo );
}
- if( !hasFocus )
+ Vector<WordBreakInfo>& wordBreakInfo = mLogicalModel->mWordBreakInfo;
+ if( GET_WORD_BREAKS & operations )
{
- ChangeState( EventData::INACTIVE );
+ // Retrieves the word break info. The word break info is used to layout the text (where to wrap the text in lines).
+ wordBreakInfo.Resize( numberOfCharacters, TextAbstraction::WORD_NO_BREAK );
+
+ SetWordBreakInfo( utf32Characters,
+ wordBreakInfo );
}
- else
+
+ const bool getScripts = GET_SCRIPTS & operations;
+ const bool validateFonts = VALIDATE_FONTS & operations;
+
+ Vector<ScriptRun>& scripts = mLogicalModel->mScriptRuns;
+ Vector<FontRun>& validFonts = mLogicalModel->mFontRuns;
+
+ if( getScripts || validateFonts )
{
- ChangeState( EventData::EDITING );
+ // Validates the fonts assigned by the application or assigns default ones.
+ // It makes sure all the characters are going to be rendered by the correct font.
+ MultilanguageSupport multilanguageSupport = MultilanguageSupport::Get();
+
+ if( getScripts )
+ {
+ // Retrieves the scripts used in the text.
+ multilanguageSupport.SetScripts( utf32Characters,
+ lineBreakInfo,
+ scripts );
+ }
+
+ if( validateFonts )
+ {
+ if( 0u == validFonts.Count() )
+ {
+ // Copy the requested font defaults received via the property system.
+ // These may not be valid i.e. may not contain glyphs for the necessary scripts.
+ GetDefaultFonts( validFonts, numberOfCharacters );
+ }
+
+ // Validates the fonts. If there is a character with no assigned font it sets a default one.
+ // After this call, fonts are validated.
+ multilanguageSupport.ValidateFonts( utf32Characters,
+ scripts,
+ validFonts );
+ }
+ }
+
+ Vector<Character> mirroredUtf32Characters;
+ bool textMirrored = false;
+ if( BIDI_INFO & operations )
+ {
+ // Count the number of LINE_NO_BREAK to reserve some space for the vector of paragraph's
+ // bidirectional info.
+
+ Length numberOfParagraphs = 0u;
+
+ const TextAbstraction::LineBreakInfo* lineBreakInfoBuffer = lineBreakInfo.Begin();
+ for( Length index = 0u; index < numberOfCharacters; ++index )
+ {
+ if( TextAbstraction::LINE_NO_BREAK == *( lineBreakInfoBuffer + index ) )
+ {
+ ++numberOfParagraphs;
+ }
+ }
+
+ Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mLogicalModel->mBidirectionalParagraphInfo;
+ bidirectionalInfo.Reserve( numberOfParagraphs );
+
+ // Calculates the bidirectional info for the whole paragraph if it contains right to left scripts.
+ SetBidirectionalInfo( utf32Characters,
+ scripts,
+ lineBreakInfo,
+ bidirectionalInfo );
+
+ if( 0u != bidirectionalInfo.Count() )
+ {
+ // This paragraph has right to left text. Some characters may need to be mirrored.
+ // TODO: consider if the mirrored string can be stored as well.
+
+ textMirrored = GetMirroredText( utf32Characters, mirroredUtf32Characters );
+
+ // Only set the character directions if there is right to left characters.
+ Vector<CharacterDirection>& directions = mLogicalModel->mCharacterDirections;
+ directions.Resize( numberOfCharacters );
+
+ GetCharactersDirection( bidirectionalInfo,
+ directions );
+ }
+ else
+ {
+ // 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;
+ if( SHAPE_TEXT & operations )
+ {
+ const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
+ // Shapes the text.
+ ShapeText( textToShape,
+ lineBreakInfo,
+ scripts,
+ validFonts,
+ glyphs,
+ glyphsToCharactersMap,
+ charactersPerGlyph );
+
+ // Create the 'number of glyphs' per character and the glyph to character conversion tables.
+ mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
+ mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters );
+ }
+
+ const Length numberOfGlyphs = glyphs.Count();
+
+ if( GET_GLYPH_METRICS & operations )
+ {
+ mFontClient.GetGlyphMetrics( glyphs.Begin(), numberOfGlyphs );
+ }
+}
+
+void Controller::Impl::GetDefaultFonts( Vector<FontRun>& fonts, Length numberOfCharacters )
+{
+ if( mFontDefaults )
+ {
+ FontRun fontRun;
+ fontRun.characterRun.characterIndex = 0;
+ fontRun.characterRun.numberOfCharacters = numberOfCharacters;
+ fontRun.fontId = mFontDefaults->GetFontId( mFontClient );
+ fontRun.isDefault = true;
+
+ fonts.PushBack( fontRun );
}
}
}
mEventData->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdateCursorPosition = true;
-}
-
-void Controller::Impl::HandleCursorKey( int keyCode )
-{
- // TODO
- if( NULL == mEventData )
- {
- // Nothing to do if there is no text input.
- return;
- }
+ 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 )
- {
- ChangeState( EventData::EDITING );
+ if( 1u == tapCount )
+ {
+ if( ! IsShowingPlaceholderText() )
+ {
+ const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+ const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
- 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 );
+ }
+ else
+ {
+ mEventData->mPrimaryCursorPosition = 0u;
+ }
- mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition,
- yPosition );
+ mEventData->mUpdateCursorPosition = true;
+ mEventData->mScrollAfterUpdatePosition = true;
+ }
+ else if( mEventData->mSelectionEnabled &&
+ ( 2u == tapCount ) )
+ {
+ // 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->mUpdateCursorPosition = true;
- mEventData->mScrollAfterUpdateCursorPosition = true;
- }
- else if( mEventData->mSelectionEnabled &&
- ( 2u == tapCount ) )
- {
- ChangeState( EventData::SELECTING );
+ RepositionSelectionHandles( xPosition,
+ yPosition );
- RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat );
+ mEventData->mScrollAfterUpdatePosition = true;
+ mEventData->mUpdateLeftSelectionPosition = true;
+ mEventData->mUpdateRightSelectionPosition = true;
+ }
}
}
}
}
-void Controller::Impl::OnGrabHandleEvent( const Event& event )
+void Controller::Impl::OnHandleEvent( const Event& event )
{
if( NULL == mEventData )
{
return;
}
- unsigned int state = event.p1.mUint;
+ const unsigned int state = event.p1.mUint;
+ const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state );
- if( GRAB_HANDLE_PRESSED == state )
+ if( HANDLE_PRESSED == state )
{
// 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;
- //mDecorator->HidePopup();
- ChangeState ( EventData::EDITING );
+ const CharacterIndex handleNewPosition = GetClosestCursorIndex( xPosition, yPosition );
- const CharacterIndex newCursorPosition = GetClosestCursorIndex( xPosition, yPosition );
+ if( Event::GRAB_HANDLE_EVENT == event.type )
+ {
+ ChangeState ( EventData::GRAB_HANDLE_PANNING );
- if( newCursorPosition != mEventData->mPrimaryCursorPosition )
+ if( handleNewPosition != mEventData->mPrimaryCursorPosition )
+ {
+ mEventData->mPrimaryCursorPosition = handleNewPosition;
+ mEventData->mUpdateCursorPosition = true;
+ }
+ }
+ else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
{
- mEventData->mPrimaryCursorPosition = newCursorPosition;
- mEventData->mUpdateCursorPosition = true;
+ ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
+ if( handleNewPosition != mEventData->mLeftSelectionPosition )
+ {
+ mEventData->mLeftSelectionPosition = handleNewPosition;
+
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+
+ mEventData->mUpdateLeftSelectionPosition = true;
+ }
}
- }
- else if( mEventData->mGrabHandlePopupEnabled &&
- ( ( GRAB_HANDLE_RELEASED == state ) ||
- ( GRAB_HANDLE_STOP_SCROLLING == state ) ) )
- {
- //mDecorator->ShowPopup();
- ChangeState ( EventData::EDITING_WITH_POPUP );
- mEventData->mUpdateCursorPosition = true;
- mEventData->mDecoratorUpdated = true;
+ else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
+ {
+ ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
+ if( handleNewPosition != mEventData->mRightSelectionPosition )
+ {
+ mEventData->mRightSelectionPosition = handleNewPosition;
+
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
- if( GRAB_HANDLE_STOP_SCROLLING == state )
+ mEventData->mUpdateRightSelectionPosition = true;
+ }
+ }
+ } // end ( HANDLE_PRESSED == state )
+ else if( ( HANDLE_RELEASED == state ) ||
+ handleStopScrolling )
+ {
+ CharacterIndex handlePosition = 0u;
+ 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->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, yPosition );
+ handlePosition = GetClosestCursorIndex( xPosition, yPosition );
+ }
+
+ if( Event::GRAB_HANDLE_EVENT == event.type )
+ {
+ mEventData->mUpdateCursorPosition = true;
+
+ ChangeState( EventData::EDITING_WITH_POPUP );
- mEventData->mScrollAfterUpdateCursorPosition = true;
+ if( handleStopScrolling )
+ {
+ mEventData->mScrollAfterUpdatePosition = mEventData->mPrimaryCursorPosition != handlePosition;
+ mEventData->mPrimaryCursorPosition = handlePosition;
+ }
}
- }
- else if( GRAB_HANDLE_SCROLLING == state )
+ else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::SELECTING );
+
+ if( handleStopScrolling )
+ {
+ mEventData->mUpdateLeftSelectionPosition = mEventData->mLeftSelectionPosition != handlePosition;
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition;
+ mEventData->mLeftSelectionPosition = handlePosition;
+
+ if( mEventData->mUpdateLeftSelectionPosition )
+ {
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+ }
+ }
+ }
+ else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::SELECTING );
+
+ if( handleStopScrolling )
+ {
+ mEventData->mUpdateRightSelectionPosition = mEventData->mRightSelectionPosition != handlePosition;
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition;
+ mEventData->mRightSelectionPosition = handlePosition;
+
+ if( mEventData->mUpdateRightSelectionPosition )
+ {
+ 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();
mEventData->mScrollPosition.x += xSpeed;
ClampHorizontalScroll( actualSize );
- }
+
+ 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 );
+ }
+ 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 );
+
+ const Vector2& position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+
+ // 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 )
+ {
+ mEventData->mUpdateLeftSelectionPosition = handlePosition != mEventData->mLeftSelectionPosition;
+ mEventData->mLeftSelectionPosition = handlePosition;
+ }
+ else
+ {
+ mEventData->mUpdateRightSelectionPosition = handlePosition != mEventData->mRightSelectionPosition;
+ mEventData->mRightSelectionPosition = handlePosition;
+ }
+
+ if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
+ {
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+ }
+ }
+ mEventData->mDecoratorUpdated = true;
+ } // end ( HANDLE_SCROLLING == state )
}
-void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
+void Controller::Impl::RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd )
{
- if( NULL == mEventData )
+ if( selectionStart == selectionEnd )
{
- // Nothing to do if there is no text input.
+ // Nothing to select if handles are in the same place.
return;
}
- // TODO - Find which word was selected
+ mEventData->mDecorator->ClearHighlights();
- const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
- const Vector<Vector2>::SizeType glyphCount = glyphs.Count();
+ mEventData->mLeftSelectionPosition = selectionStart;
+ mEventData->mRightSelectionPosition = selectionEnd;
- const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
- const Vector<Vector2>::SizeType positionCount = positions.Count();
+ 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();
+
+ // TODO: Better algorithm to create the highlight box.
+ // TODO: Multi-line.
+
+ const Vector<LineRun>& lines = mVisualModel->mLines;
+ const LineRun& firstLine = *lines.Begin();
+ const float height = firstLine.ascender + -firstLine.descender;
+
+ const bool indicesSwapped = ( selectionStart > selectionEnd );
+ if( indicesSwapped )
+ {
+ std::swap( selectionStart, selectionEnd );
+ }
+
+ GlyphIndex glyphStart = *( charactersToGlyphBuffer + selectionStart );
+ GlyphIndex glyphEnd = *( charactersToGlyphBuffer + ( selectionEnd - 1u ) ) + *( glyphsPerCharacterBuffer + ( selectionEnd - 1u ) ) - 1u;
- // Guard against glyphs which did not fit inside the layout
- const Vector<Vector2>::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount;
+ mEventData->mDecorator->SwapSelectionHandlesEnabled( firstLine.direction != indicesSwapped );
- if( count )
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+
+ for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
{
- float primaryX = positions[0].x + mEventData->mScrollPosition.x;
- float secondaryX = positions[count-1].x + glyphs[count-1].width + mEventData->mScrollPosition.x;
+ const GlyphInfo& glyph = *( glyphsBuffer + index );
+ const Vector2& position = *( positionsBuffer + index );
+
+ 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 );
- // TODO - multi-line selection
- const Vector<LineRun>& lines = mVisualModel->mLines;
- float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f;
+ 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;
+ }
- mEventData->mDecorator->SetPosition( PRIMARY_SELECTION_HANDLE, primaryX, mEventData->mScrollPosition.y, height );
- mEventData->mDecorator->SetPosition( SECONDARY_SELECTION_HANDLE, secondaryX, mEventData->mScrollPosition.y, height );
+ // 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 );
- mEventData->mDecorator->ClearHighlights();
- mEventData->mDecorator->AddHighlight( primaryX, mEventData->mScrollPosition.y, secondaryX, height + mEventData->mScrollPosition.y );
+ if( selectionStart == selectionEnd )
+ {
+ ChangeState( EventData::EDITING );
+ // Nothing to select. i.e. a white space, out of bounds
+ return;
}
+
+ RepositionSelectionHandles( selectionStart, selectionEnd );
}
void Controller::Impl::ChangeState( EventData::State newState )
{
mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetGrabHandleActive( false );
- mEventData->mDecorator->SetSelectionActive( false );
+ 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;
}
{
mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
mEventData->mDecorator->StopCursorBlink();
- mEventData->mDecorator->SetGrabHandleActive( false );
- mEventData->mDecorator->SetSelectionActive( true );
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::CUT | TextSelectionPopup::COPY );
+ if ( !IsClipboardEmpty() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ }
+
+ mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+ mEventData->mDecorator->SetPopupActive( true );
+ }
+ mEventData->mDecoratorUpdated = true;
+ }
+ else if ( EventData::SELECTION_CHANGED == mEventData->mState )
+ {
+ if( mEventData->mGrabHandlePopupEnabled )
+ {
+ TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::CUT | TextSelectionPopup::COPY );
+ if ( !IsClipboardEmpty() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ }
+ mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+ mEventData->mDecorator->SetPopupActive( true );
+ }
mEventData->mDecoratorUpdated = true;
}
else if( EventData::EDITING == mEventData->mState )
{
mEventData->mDecorator->StartCursorBlink();
}
- if( mEventData->mGrabHandleEnabled )
- {
- mEventData->mDecorator->SetGrabHandleActive( true );
- }
+ // 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->mDecorator->SetSelectionActive( false );
mEventData->mDecoratorUpdated = true;
}
else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
{
mEventData->mDecorator->StartCursorBlink();
}
- if( mEventData->mGrabHandleEnabled )
+ if( mEventData->mSelectionEnabled )
+ {
+ mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+ }
+ else
{
- mEventData->mDecorator->SetGrabHandleActive( true );
+ mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
}
if( mEventData->mGrabHandlePopupEnabled )
{
+ TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL );
+
+ if ( !IsClipboardEmpty() )
+ {
+ buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+ }
+
+ mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
mEventData->mDecorator->SetPopupActive( true );
}
- mEventData->mDecorator->SetSelectionActive( false );
+ mEventData->mDecoratorUpdated = true;
+ }
+ 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;
}
}
}
}
+ 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 )
{
const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
- const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+ // Find the mid-point of the area containing the glyph
+ const float glyphCenter = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
- if( visualX < glyphX )
+ if( visualX < glyphCenter )
{
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,
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.
- mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
- cursorInfo.primaryPosition.x + mEventData->mScrollPosition.x + mAlignmentOffset.x,
- cursorInfo.primaryPosition.y + mEventData->mScrollPosition.y + mAlignmentOffset.y,
- cursorInfo.primaryCursorHeight,
- cursorInfo.lineHeight );
+ // 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.
- if( cursorInfo.isSecondaryCursor )
+ float lineHeight = 0.f;
+
+ 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 );
+
+ 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 * mControlSize.width );
+ break;
+ }
+ case LayoutEngine::HORIZONTAL_ALIGN_END:
+ {
+ cursorPosition.x = 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 * ( mControlSize.height - lineHeight ) );
+ break;
+ }
+ case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+ {
+ cursorPosition.y = mControlSize.height - lineHeight;
+ break;
+ }
+ }
+
+ mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+ cursorPosition.x,
+ cursorPosition.y,
+ lineHeight,
+ lineHeight );
+ }
+ else
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
- mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
- cursorInfo.secondaryPosition.x + mEventData->mScrollPosition.x + mAlignmentOffset.x,
- cursorInfo.secondaryPosition.y + mEventData->mScrollPosition.y + mAlignmentOffset.y,
- cursorInfo.secondaryCursorHeight,
+ 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 );
+ }
}
- else
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition\n" );
+}
+
+void Controller::Impl::UpdateSelectionHandle( HandleType handleType )
+{
+ if( ( LEFT_SELECTION_HANDLE != handleType ) &&
+ ( RIGHT_SELECTION_HANDLE != handleType ) )
{
- mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+ return;
}
- mEventData->mUpdateCursorPosition = false;
- mEventData->mDecoratorUpdated = true;
+ const bool leftSelectionHandle = LEFT_SELECTION_HANDLE == handleType;
+ const CharacterIndex index = leftSelectionHandle ? mEventData->mLeftSelectionPosition : mEventData->mRightSelectionPosition;
+
+ CursorInfo cursorInfo;
+ GetCursorPosition( index,
+ cursorInfo );
+
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+ // Sets the grab handle position.
+ mEventData->mDecorator->SetPosition( handleType,
+ cursorPosition.x,
+ cursorPosition.y,
+ cursorInfo.lineHeight );
}
void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize )
}
}
-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 > mControlSize.width )
{
- offset.x = mControlSize.width - primaryCursorPosition.x;
+ offset.x = 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() );
+ bool updateCursorPosition = true;
+
+ const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+ const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+ if( updateCursorPosition )
+ {
+ // 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->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 );
+ }
+ }
+}
+
void Controller::Impl::RequestRelayout()
{
mControlInterface.RequestTextRelayout();
projects / platform / core / uifw / dali-toolkit.git / blobdiff