#include <limits>
#include <iostream>
#include <dali/public-api/adaptor-framework/key.h>
+#include <dali/integration-api/debug.h>
+#include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/bidirectional-support.h>
namespace
{
+#if defined(DEBUG_ENABLED)
+ Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
+#endif
+
const float MAX_FLOAT = std::numeric_limits<float>::max();
const std::string EMPTY_STRING("");
+float ConvertToEven( float value )
+{
+ int intValue(static_cast<int>( value ));
+ return static_cast<float>(intValue % 2 == 0) ? intValue : (intValue + 1);
+}
+
} // namespace
namespace Dali
return ControllerPtr( new Controller( controlInterface ) );
}
-void Controller::SetText( const std::string& text )
+void Controller::EnableTextInput( DecoratorPtr decorator )
{
- // Cancel previously queued inserts etc.
- mImpl->mModifyEvents.clear();
+ if( !mImpl->mEventData )
+ {
+ mImpl->mEventData = new EventData( decorator );
+ }
+}
+void Controller::SetText( const std::string& text )
+{
// Remove the previously set text
ResetText();
- if( ! text.empty() )
+ CharacterIndex lastCursorIndex = 0u;
+
+ if( mImpl->mEventData )
+ {
+ // If popup shown then hide it by switching to Editing state
+ if ( EventData::SELECTING == mImpl->mEventData->mState ||
+ EventData::SELECTION_CHANGED == mImpl->mEventData->mState ||
+ EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState )
+ {
+ mImpl->ChangeState( EventData::EDITING );
+ }
+ }
+
+ if( !text.empty() )
{
// Convert text into UTF-32
Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
utf32Characters.Resize( characterCount );
- // Reset the cursor position
- if( mImpl->mEventData )
- {
- mImpl->mEventData->mPrimaryCursorPosition = characterCount;
- }
+ DALI_ASSERT_DEBUG( text.size() >= characterCount && "Invalid UTF32 conversion length" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, text.size(), mImpl->mLogicalModel->mText.Count() );
+
+ // To reset the cursor position
+ lastCursorIndex = characterCount;
// Update the rest of the model during size negotiation
mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
}
else
{
- mImpl->ShowPlaceholderText();
+ ShowPlaceholderText();
}
+ // Resets the cursor position.
+ ResetCursorPosition( lastCursorIndex );
+
+ // Scrolls the text to make the cursor visible.
+ ResetScrollPosition();
+
+ mImpl->RequestRelayout();
+
if( mImpl->mEventData )
{
// Cancel previously queued events
}
// Reset keyboard as text changed
- mImpl->PreEditReset();
+ mImpl->ResetImfManager();
+
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
}
void Controller::GetText( std::string& text ) const
if( 0u != utf32Characters.Count() )
{
- uint32_t numberOfBytes = GetNumberOfUtf8Bytes( &utf32Characters[0], utf32Characters.Count() );
-
- text.resize( numberOfBytes );
-
- // This is a bit horrible but std::string returns a (signed) char*
- Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), reinterpret_cast<uint8_t*>(&text[0]) );
+ Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
}
}
+ else
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
+ }
}
unsigned int Controller::GetLogicalCursorPosition() const
mImpl->mEventData->mPlaceholderTextActive = text;
}
- mImpl->ShowPlaceholderText();
+ // Update placeholder if there is no text
+ if( mImpl->IsShowingPlaceholderText() ||
+ 0u == mImpl->mLogicalModel->mText.Count() )
+ {
+ ShowPlaceholderText();
+ }
}
}
}
mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperationsPending = ALL_OPERATIONS;
- mImpl->mRecalculateNaturalSize = true;
// Clear the font-specific data
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearFontData();
+
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
mImpl->RequestRelayout();
}
}
mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperationsPending = ALL_OPERATIONS;
- mImpl->mRecalculateNaturalSize = true;
// Clear the font-specific data
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearFontData();
+
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
mImpl->RequestRelayout();
}
}
mImpl->mFontDefaults->mDefaultPointSize = pointSize;
- mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
- mImpl->mOperationsPending = ALL_OPERATIONS;
- mImpl->mRecalculateNaturalSize = true;
// Clear the font-specific data
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearFontData();
+
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->mRecalculateNaturalSize = true;
mImpl->RequestRelayout();
}
{
mImpl->mTextColor = textColor;
- if( ! mImpl->IsShowingPlaceholderText() )
+ if( !mImpl->IsShowingPlaceholderText() )
{
mImpl->mVisualModel->SetTextColor( textColor );
+
+ mImpl->RequestRelayout();
}
}
{
bool removed( false );
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfChars %d\n",
+ this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfChars );
+
if( ! mImpl->IsShowingPlaceholderText() )
{
// Delete at current cursor position
numberOfChars = currentText.Count() - cursorIndex;
}
- if( cursorIndex >= 0 &&
- (cursorIndex + numberOfChars) <= currentText.Count() )
+ if( (cursorIndex + numberOfChars) <= currentText.Count() )
{
Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
Vector<Character>::Iterator last = first + numberOfChars;
// Cursor position retreat
oldCursorIndex = cursorIndex;
+ DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
removed = true;
}
}
if( mImpl->IsShowingPlaceholderText() )
{
mImpl->mVisualModel->SetTextColor( textColor );
+ mImpl->RequestRelayout();
}
}
void Controller::SetShadowOffset( const Vector2& shadowOffset )
{
mImpl->mVisualModel->SetShadowOffset( shadowOffset );
+
+ mImpl->RequestRelayout();
}
const Vector2& Controller::GetShadowOffset() const
void Controller::SetShadowColor( const Vector4& shadowColor )
{
mImpl->mVisualModel->SetShadowColor( shadowColor );
+
+ mImpl->RequestRelayout();
}
const Vector4& Controller::GetShadowColor() const
void Controller::SetUnderlineColor( const Vector4& color )
{
mImpl->mVisualModel->SetUnderlineColor( color );
+
+ mImpl->RequestRelayout();
}
const Vector4& Controller::GetUnderlineColor() const
void Controller::SetUnderlineEnabled( bool enabled )
{
mImpl->mVisualModel->SetUnderlineEnabled( enabled );
+
+ mImpl->RequestRelayout();
}
bool Controller::IsUnderlineEnabled() const
void Controller::SetUnderlineHeight( float height )
{
mImpl->mVisualModel->SetUnderlineHeight( height );
+
+ mImpl->RequestRelayout();
}
float Controller::GetUnderlineHeight() const
return mImpl->mVisualModel->GetUnderlineHeight();
}
-void Controller::EnableTextInput( DecoratorPtr decorator )
-{
- if( !mImpl->mEventData )
- {
- mImpl->mEventData = new EventData( decorator );
- }
-}
-
void Controller::SetEnableCursorBlink( bool enable )
{
DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
Vector3 Controller::GetNaturalSize()
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
Vector3 naturalSize;
// Make sure the model is up-to-date before layouting
mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
mImpl->mRecalculateNaturalSize = false;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
}
else
{
naturalSize = mImpl->mVisualModel->GetNaturalSize();
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
}
+ naturalSize.x = ConvertToEven( naturalSize.x );
+ naturalSize.y = ConvertToEven( naturalSize.y );
+
return naturalSize;
}
float Controller::GetHeightForWidth( float width )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width );
// Make sure the model is up-to-date before layouting
ProcessModifyEvents();
Size layoutSize;
- if( width != mImpl->mControlSize.width )
+ if( width != mImpl->mVisualModel->mControlSize.width )
{
// Operations that can be done only once until the text changes.
const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
// Do the size related operations again.
mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
}
else
{
layoutSize = mImpl->mVisualModel->GetActualSize();
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
}
return layoutSize.height;
bool Controller::Relayout( const Size& size )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height );
+
if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
{
bool glyphsRemoved( false );
- if( 0u != mImpl->mVisualModel->GetNumberOfGlyphPositions() )
+ if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() )
{
- mImpl->mVisualModel->SetGlyphPositions( NULL, 0u );
+ mImpl->mVisualModel->mGlyphPositions.Clear();
glyphsRemoved = true;
}
// Not worth to relayout if width or height is equal to zero.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
return glyphsRemoved;
}
- if( size != mImpl->mControlSize )
+ if( size != mImpl->mVisualModel->mControlSize )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height );
+
// Operations that need to be done if the size changes.
mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
LAYOUT |
UPDATE_ACTUAL_SIZE |
REORDER );
- mImpl->mControlSize = size;
+ mImpl->mVisualModel->mControlSize = size;
}
// Make sure the model is up-to-date before layouting
mImpl->UpdateModel( mImpl->mOperationsPending );
Size layoutSize;
- bool updated = DoRelayout( mImpl->mControlSize,
+ bool updated = DoRelayout( mImpl->mVisualModel->mControlSize,
mImpl->mOperationsPending,
layoutSize );
updated = mImpl->ProcessInputEvents() || updated;
}
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
return updated;
}
for( unsigned int i=0; i<events.size(); ++i )
{
- if( ModifyEvent::PLACEHOLDER_TEXT == events[0].type )
- {
- // Use placeholder if text is empty
- if( 0u == mImpl->mLogicalModel->mText.Count() &&
- mImpl->IsShowingPlaceholderText() )
- {
- mImpl->ReplaceTextWithPlaceholder();
- }
- }
- else if( ModifyEvent::TEXT_REPLACED == events[0].type )
+ if( ModifyEvent::TEXT_REPLACED == events[0].type )
{
// A (single) replace event should come first, otherwise we wasted time processing NOOP events
DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
{
// Reset buffers.
mImpl->mLogicalModel->mText.Clear();
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
-
- // Reset the cursor position
- if( mImpl->mEventData )
- {
- mImpl->mEventData->mPrimaryCursorPosition = 0;
- }
+ ClearModelData();
// We have cleared everything including the placeholder-text
mImpl->PlaceholderCleared();
mImpl->mOperationsPending = ALL_OPERATIONS;
}
+void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
+{
+ // Reset the cursor position
+ if( NULL != mImpl->mEventData )
+ {
+ mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
+
+ // Update the cursor if it's in editing mode.
+ if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
+ ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) )
+ {
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ }
+}
+
+void Controller::ResetScrollPosition()
+{
+ if( NULL != mImpl->mEventData )
+ {
+ // Reset the scroll position.
+ mImpl->mEventData->mScrollPosition = Vector2::ZERO;
+ mImpl->mEventData->mScrollAfterUpdatePosition = true;
+ }
+}
+
void Controller::TextReplacedEvent()
{
// Reset buffers.
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearModelData();
// The natural size needs to be re-calculated.
mImpl->mRecalculateNaturalSize = true;
DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
// TODO - Optimize this
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearModelData();
// The natural size needs to be re-calculated.
mImpl->mRecalculateNaturalSize = true;
// Queue a cursor reposition event; this must wait until after DoRelayout()
mImpl->mEventData->mUpdateCursorPosition = true;
- mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdatePosition = true;
}
void Controller::TextDeletedEvent()
DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
// TODO - Optimize this
- mImpl->mLogicalModel->mScriptRuns.Clear();
- mImpl->mLogicalModel->mFontRuns.Clear();
- mImpl->mLogicalModel->mLineBreakInfo.Clear();
- mImpl->mLogicalModel->mWordBreakInfo.Clear();
- mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
- mImpl->mLogicalModel->mCharacterDirections.Clear();
- mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
- mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
- mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
- mImpl->mVisualModel->mGlyphs.Clear();
- mImpl->mVisualModel->mGlyphsToCharacters.Clear();
- mImpl->mVisualModel->mCharactersToGlyph.Clear();
- mImpl->mVisualModel->mCharactersPerGlyph.Clear();
- mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
- mImpl->mVisualModel->mGlyphPositions.Clear();
- mImpl->mVisualModel->mLines.Clear();
- mImpl->mVisualModel->ClearCaches();
+ ClearModelData();
// The natural size needs to be re-calculated.
mImpl->mRecalculateNaturalSize = true;
REORDER );
// Queue a cursor reposition event; this must wait until after DoRelayout()
- mImpl->mEventData->mUpdateCursorPosition = true;
- mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterDelete = true;
}
bool Controller::DoRelayout( const Size& size,
OperationsMask operationsRequired,
Size& layoutSize )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
bool viewUpdated( false );
// Calculate the operations to be done.
// after the first time the text has been laid out.
// Fill the vectors again.
- Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
+ Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
if( 0u == numberOfGlyphs )
{
// Nothing else to do if there is no glyphs.
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
return true;
}
if( 0u != bidirectionalInfo.Count() )
{
// Get the lines
- const Length numberOfLines = mImpl->mVisualModel->GetNumberOfLines();
+ const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
// Reorder the lines.
Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
}
} // REORDER
- if( ALIGN & operations )
- {
- mImpl->mLayoutEngine.Align( layoutParameters,
- layoutSize,
- lines,
- glyphPositions );
- }
-
// Sets the actual size.
if( UPDATE_ACTUAL_SIZE & operations )
{
layoutSize = mImpl->mVisualModel->GetActualSize();
}
+ if( ALIGN & operations )
+ {
+ // The laid-out lines.
+ Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
+
+ mImpl->mLayoutEngine.Align( layoutSize,
+ lines );
+
+ viewUpdated = true;
+ }
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
return viewUpdated;
}
+void Controller::SetMultiLineEnabled( bool enable )
+{
+ const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
+
+ if( layout != mImpl->mLayoutEngine.GetLayout() )
+ {
+ // Set the layout type.
+ mImpl->mLayoutEngine.SetLayout( layout );
+
+ // Set the flags to redo the layout operations
+ const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
+ UPDATE_ACTUAL_SIZE |
+ ALIGN |
+ REORDER );
+
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
+
+ mImpl->RequestRelayout();
+ }
+}
+
+bool Controller::IsMultiLineEnabled() const
+{
+ return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
+}
+
+void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
+{
+ if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
+ {
+ // Set the alignment.
+ mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
+
+ // Set the flag to redo the alignment operation.
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
+
+ mImpl->RequestRelayout();
+ }
+}
+
+LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
+{
+ return mImpl->mLayoutEngine.GetHorizontalAlignment();
+}
+
+void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
+{
+ if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
+ {
+ // Set the alignment.
+ mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
+
+ // Set the flag to redo the alignment operation.
+ // TODO : Is not needed re-layout and reorder again but with the current implementation it is.
+ // Im working on a different patch to fix an issue with the alignment. When that patch
+ // is in, this issue can be fixed.
+ const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
+ UPDATE_ACTUAL_SIZE |
+ ALIGN |
+ REORDER );
+
+ mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
+
+ mImpl->RequestRelayout();
+ }
+}
+
+LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
+{
+ return mImpl->mLayoutEngine.GetVerticalAlignment();
+}
+
void Controller::CalculateTextAlignment( const Size& size )
{
// Get the direction of the first character.
const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
- const Size& actualSize = mImpl->mVisualModel->GetActualSize();
+ Size actualSize = mImpl->mVisualModel->GetActualSize();
+ if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
+ {
+ // Get the line height of the default font.
+ actualSize.height = mImpl->GetDefaultFontLineHeight();
+ }
// If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
if( mImpl->mEventData )
{
- Event event( Event::KEYBOARD_FOCUS_GAIN_EVENT );
- mImpl->mEventData->mEventQueue.push_back( event );
+ mImpl->ChangeState( EventData::EDITING );
- mImpl->RequestRelayout();
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ // Show alternative placeholder-text when editing
+ ShowPlaceholderText();
+ }
+
+ mImpl->RequestRelayout();
}
}
if( mImpl->mEventData )
{
- Event event( Event::KEYBOARD_FOCUS_LOST_EVENT );
- mImpl->mEventData->mEventQueue.push_back( event );
+ if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
+ {
+ mImpl->ChangeState( EventData::INACTIVE );
- mImpl->RequestRelayout();
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ // Revert to regular placeholder-text when not editing
+ ShowPlaceholderText();
+ }
+ }
}
+ mImpl->RequestRelayout();
}
bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
{
DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
+ bool textChanged( false );
+
if( mImpl->mEventData &&
keyEvent.state == KeyEvent::Down )
{
}
else if( Dali::DALI_KEY_BACKSPACE == keyCode )
{
- // Remove the character before the current cursor position
- bool removed = RemoveText( -1, 1 );
-
- if( removed )
- {
- if( 0u == mImpl->mLogicalModel->mText.Count() )
- {
- mImpl->ShowPlaceholderText();
- }
- else
- {
- mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
- }
- }
+ textChanged = BackspaceKeyEvent();
+ }
+ else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
+ {
+ mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
+ // Avoids calling the InsertText() method which can delete selected text
+ }
+ else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
+ IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
+ {
+ mImpl->ChangeState( EventData::INACTIVE );
+ // Menu/Home key behaviour does not allow edit mode to resume like Power key
+ // Avoids calling the InsertText() method which can delete selected text
}
else
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
+
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+
InsertText( keyString, COMMIT );
+ textChanged = true;
}
- mImpl->ChangeState( EventData::EDITING ); // todo Confirm this is the best place to change the state of
+ if ( mImpl->mEventData->mState != EventData::INTERRUPTED && mImpl->mEventData->mState != EventData::INACTIVE )
+ {
+ mImpl->ChangeState( EventData::EDITING );
+ }
mImpl->RequestRelayout();
}
+ if( textChanged )
+ {
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
+ }
+
return false;
}
void Controller::InsertText( const std::string& text, Controller::InsertType type )
{
- bool removedPreEdit( false );
+ bool removedPrevious( false );
bool maxLengthReached( false );
- if( ! text.empty() )
- {
- if( mImpl->IsShowingPlaceholderText() )
- {
- ResetText();
- }
- }
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
+ this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
+ mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
- if( mImpl->mEventData )
+ Vector<Character> utf32Characters;
+ Length characterCount( 0u );
+
+ // Remove the previous IMF pre-edit (predicitive text)
+ if( mImpl->mEventData &&
+ mImpl->mEventData->mPreEditFlag &&
+ 0 != mImpl->mEventData->mPreEditLength )
{
- if( COMMIT == type )
- {
- mImpl->mEventData->mPreEditFlag = false;
- }
- else // PRE_EDIT
- {
- if( mImpl->mEventData->mPreEditFlag &&
- 0 != mImpl->mEventData->mPreEditLength )
- {
- // Remove previous pre-edit text
- mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
- removedPreEdit = RemoveText( -1, mImpl->mEventData->mPreEditLength );
- }
- else
- {
- // Record the start of the pre-edit text
- mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
- mImpl->mEventData->mPreEditLength = text.size();
- }
+ CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
+ removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
- mImpl->mEventData->mPreEditFlag = true;
- }
+ mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
+ mImpl->mEventData->mPreEditLength = 0;
+ }
+ else
+ {
+ // Remove the previous Selection
+ removedPrevious = RemoveSelectedText();
}
if( ! text.empty() )
{
// Convert text into UTF-32
- Vector<Character> utf32Characters;
utf32Characters.Resize( text.size() );
// This is a bit horrible but std::string returns a (signed) char*
// Transform a text array encoded in utf8 into an array encoded in utf32.
// It returns the actual number of characters.
- Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
+ characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
utf32Characters.Resize( characterCount );
- const Length numberOfCharactersInModel = mImpl->mLogicalModel->GetNumberOfCharacters();
+ DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
+ }
+
+ if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
+ {
+ // The placeholder text is no longer needed
+ if( mImpl->IsShowingPlaceholderText() )
+ {
+ ResetText();
+ }
+
+ mImpl->ChangeState( EventData::EDITING );
+
+ // Handle the IMF (predicitive text) state changes
+ if( mImpl->mEventData )
+ {
+ if( COMMIT == type )
+ {
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+ }
+ else // PRE_EDIT
+ {
+ if( ! mImpl->mEventData->mPreEditFlag )
+ {
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
+
+ // Record the start of the pre-edit text
+ mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
+ }
+
+ mImpl->mEventData->mPreEditLength = utf32Characters.Count();
+ mImpl->mEventData->mPreEditFlag = true;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
+ }
+ }
+
+ const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
// Restrict new text to fit within Maximum characters setting
Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
}
cursorIndex += maxSizeOfNewText;
+
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
}
- if( removedPreEdit || !text.empty() )
+ if( 0u == mImpl->mLogicalModel->mText.Count() &&
+ mImpl->IsPlaceholderAvailable() )
+ {
+ // Show place-holder if empty after removing the pre-edit text
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->ClearPreEditFlag();
+ }
+ else if( removedPrevious ||
+ 0 != utf32Characters.Count() )
{
// Queue an inserted event
mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
if( maxLengthReached )
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
+
+ mImpl->ResetImfManager();
+
+ // Do this last since it provides callbacks into application code
mImpl->mControlInterface.MaxLengthReached();
+ }
+}
- mImpl->PreEditReset();
+bool Controller::RemoveSelectedText()
+{
+ bool textRemoved( false );
+
+ if ( EventData::SELECTING == mImpl->mEventData->mState ||
+ EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
+ {
+ std::string removedString;
+ mImpl->RetrieveSelection( removedString, true );
+
+ if( !removedString.empty() )
+ {
+ textRemoved = true;
+ mImpl->ChangeState( EventData::EDITING );
+ }
}
+
+ return textRemoved;
}
void Controller::TapEvent( unsigned int tapCount, float x, float y )
{
DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
- if( mImpl->mEventData )
+ if( NULL != mImpl->mEventData )
{
- Event event( Event::TAP_EVENT );
- event.p1.mUint = tapCount;
- event.p2.mFloat = x;
- event.p3.mFloat = y;
- mImpl->mEventData->mEventQueue.push_back( event );
+ const bool isShowingPlaceholderText = mImpl->IsShowingPlaceholderText();
+ if( 1u == tapCount )
+ {
+ if( !isShowingPlaceholderText &&
+ ( EventData::EDITING == mImpl->mEventData->mState ) )
+ {
+ mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
+ }
+ else if( EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
+ {
+ // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
+ mImpl->ChangeState( EventData::EDITING );
+ }
- mImpl->RequestRelayout();
+ Event event( Event::TAP_EVENT );
+ event.p1.mUint = tapCount;
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+ mImpl->mEventData->mEventQueue.push_back( event );
+
+ mImpl->RequestRelayout();
+ }
+ else if( !isShowingPlaceholderText &&
+ mImpl->mEventData->mSelectionEnabled &&
+ ( 2u == tapCount ) )
+ {
+ SelectEvent( x, y, false );
+ }
}
// Reset keyboard as tap event has occurred.
- mImpl->PreEditReset();
+ mImpl->ResetImfManager();
}
void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
}
}
-void Controller::HandleEvent( HandleType handleType, HandleState state, float x, float y )
+void Controller::LongPressEvent( Gesture::State state, float x, float y )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
+
+ if ( mImpl->IsShowingPlaceholderText() || mImpl->mLogicalModel->mText.Count() == 0u )
+ {
+ if ( mImpl->mEventData )
+ {
+ Event event( Event::LONG_PRESS_EVENT );
+ event.p1.mInt = state;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ mImpl->RequestRelayout();
+ }
+ }
+ else if( mImpl->mEventData )
+ {
+ SelectEvent( x, y, false );
+ }
+}
+
+void Controller::SelectEvent( float x, float y, bool selectAll )
+{
+ if( mImpl->mEventData )
+ {
+ if ( mImpl->mEventData->mState == EventData::SELECTING )
+ {
+ mImpl->ChangeState( EventData::SELECTION_CHANGED );
+ }
+ else
+ {
+ mImpl->ChangeState( EventData::SELECTING );
+ }
+
+ if( selectAll )
+ {
+ Event event( Event::SELECT_ALL );
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
+ else
+ {
+ Event event( Event::SELECT );
+ event.p2.mFloat = x;
+ event.p3.mFloat = y;
+ mImpl->mEventData->mEventQueue.push_back( event );
+ }
+
+ mImpl->RequestRelayout();
+ }
+}
+
+void Controller::GetTargetSize( Vector2& targetSize )
+{
+ targetSize = mImpl->mVisualModel->mControlSize;
+}
+
+void Controller::AddDecoration( Actor& actor, bool needsClipping )
{
- DALI_ASSERT_DEBUG( mImpl->mEventData && "Controller::HandleEvent. Unexpected HandleEvent" );
+ mImpl->mControlInterface.AddDecoration( actor, needsClipping );
+}
+
+void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
+{
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
if( mImpl->mEventData )
{
}
}
+void Controller::PasteText( const std::string& stringToPaste )
+{
+ InsertText( stringToPaste, Text::Controller::COMMIT );
+ mImpl->ChangeState( EventData::EDITING );
+ mImpl->RequestRelayout();
+}
+
+void Controller::PasteClipboardItemEvent()
+{
+ ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
+ std::string stringToPaste( notifier.GetContent() );
+ PasteText( stringToPaste );
+}
+
+void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
+{
+ if( NULL == mImpl->mEventData )
+ {
+ return;
+ }
+
+ switch( button )
+ {
+ case Toolkit::TextSelectionPopup::CUT:
+ {
+ mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ if( 0u != mImpl->mLogicalModel->mText.Count() ||
+ !mImpl->IsPlaceholderAvailable() )
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ else
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ mImpl->RequestRelayout();
+ mImpl->mControlInterface.TextChanged();
+ break;
+ }
+ case Toolkit::TextSelectionPopup::COPY:
+ {
+ mImpl->SendSelectionToClipboard( false ); // Text not modified
+ mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
+ break;
+ }
+ case Toolkit::TextSelectionPopup::PASTE:
+ {
+ std::string stringToPaste("");
+ mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
+ PasteText( stringToPaste );
+ break;
+ }
+ case Toolkit::TextSelectionPopup::SELECT:
+ {
+ const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
+
+ if( mImpl->mEventData->mSelectionEnabled )
+ {
+ // Creates a SELECT event.
+ SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
+ }
+ break;
+ }
+ case Toolkit::TextSelectionPopup::SELECT_ALL:
+ {
+ // Creates a SELECT_ALL event
+ SelectEvent( 0.f, 0.f, true );
+ break;
+ }
+ case Toolkit::TextSelectionPopup::CLIPBOARD:
+ {
+ mImpl->ShowClipboard();
+ break;
+ }
+ case Toolkit::TextSelectionPopup::NONE:
+ {
+ // Nothing to do.
+ break;
+ }
+ }
+}
+
+ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
+{
+ bool update( false );
+ bool requestRelayout = false;
+
+ std::string text;
+ unsigned int cursorPosition( 0 );
+
+ switch ( imfEvent.eventName )
+ {
+ case ImfManager::COMMIT:
+ {
+ InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
+ requestRelayout = true;
+ break;
+ }
+ case ImfManager::PREEDIT:
+ {
+ InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
+ update = true;
+ requestRelayout = true;
+ break;
+ }
+ case ImfManager::DELETESURROUNDING:
+ {
+ RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
+ requestRelayout = true;
+ break;
+ }
+ case ImfManager::GETSURROUNDING:
+ {
+ GetText( text );
+ cursorPosition = GetLogicalCursorPosition();
+
+ imfManager.SetSurroundingText( text );
+ imfManager.SetCursorPosition( cursorPosition );
+ break;
+ }
+ case ImfManager::VOID:
+ {
+ // do nothing
+ break;
+ }
+ } // end switch
+
+ if( ImfManager::GETSURROUNDING != imfEvent.eventName )
+ {
+ GetText( text );
+ cursorPosition = GetLogicalCursorPosition();
+ }
+
+ if( requestRelayout )
+ {
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->RequestRelayout();
+
+ // Do this last since it provides callbacks into application code
+ mImpl->mControlInterface.TextChanged();
+ }
+
+ ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
+
+ return callbackData;
+}
+
Controller::~Controller()
{
delete mImpl;
}
+bool Controller::BackspaceKeyEvent()
+{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
+
+ // IMF manager is no longer handling key-events
+ mImpl->ClearPreEditFlag();
+
+ bool removed( false );
+
+ if ( EventData::SELECTING == mImpl->mEventData->mState ||
+ EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
+ {
+ removed = RemoveSelectedText();
+ }
+ else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
+ {
+ // Remove the character before the current cursor position
+ removed = RemoveText( -1, 1 );
+ }
+
+ if( removed )
+ {
+ if( 0u != mImpl->mLogicalModel->mText.Count() ||
+ !mImpl->IsPlaceholderAvailable() )
+ {
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
+ }
+ else
+ {
+ ShowPlaceholderText();
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ }
+ }
+
+ return removed;
+}
+
+void Controller::ShowPlaceholderText()
+{
+ if( mImpl->IsPlaceholderAvailable() )
+ {
+ DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
+
+ mImpl->mEventData->mIsShowingPlaceholderText = true;
+
+ // Disable handles when showing place-holder text
+ mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+ mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+
+ const char* text( NULL );
+ size_t size( 0 );
+
+ // TODO - Switch placeholder text styles when changing state
+ if( EventData::INACTIVE != mImpl->mEventData->mState &&
+ 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
+ {
+ text = mImpl->mEventData->mPlaceholderTextActive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextActive.size();
+ }
+ else
+ {
+ text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
+ size = mImpl->mEventData->mPlaceholderTextInactive.size();
+ }
+
+ // Reset model for showing placeholder.
+ mImpl->mLogicalModel->mText.Clear();
+ ClearModelData();
+ mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
+
+ // Convert text into UTF-32
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
+ utf32Characters.Resize( size );
+
+ // This is a bit horrible but std::string returns a (signed) char*
+ const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
+
+ // Transform a text array encoded in utf8 into an array encoded in utf32.
+ // It returns the actual number of characters.
+ Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
+ utf32Characters.Resize( characterCount );
+
+ // Reset the cursor position
+ mImpl->mEventData->mPrimaryCursorPosition = 0;
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+
+ // Update the rest of the model during size negotiation
+ mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
+ }
+}
+
+void Controller::ClearModelData()
+{
+ // n.b. This does not Clear the mText from mLogicalModel
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mLogicalModel->mCharacterDirections.Clear();
+ mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
+ mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
+ mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+}
+
+void Controller::ClearFontData()
+{
+ mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+}
+
Controller::Controller( ControlInterface& controlInterface )
: mImpl( NULL )
{