/*
- * Copyright (c) 2020 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <dali-toolkit/internal/text/text-controller-relayouter.h>
// EXTERNAL INCLUDES
-#include <limits>
#include <dali/integration-api/debug.h>
+#include <limits>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/layouts/layout-parameters.h>
+#include <dali-toolkit/internal/text/text-controller-event-handler.h>
#include <dali-toolkit/internal/text/text-controller-impl.h>
namespace
{
-
#if defined(DEBUG_ENABLED)
Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
#endif
constexpr float MAX_FLOAT = std::numeric_limits<float>::max();
-float ConvertToEven( float value )
+float ConvertToEven(float value)
{
- int intValue(static_cast<int>( value ));
- return static_cast<float>( intValue + ( intValue & 1 ) );
+ int intValue(static_cast<int>(value));
+ return static_cast<float>(intValue + (intValue & 1));
}
} // namespace
namespace Dali
{
-
namespace Toolkit
{
-
namespace Text
{
-
-Vector3 Controller::Relayouter::GetNaturalSize(Controller& controller)
+Size Controller::Relayouter::CalculateLayoutSizeOnRequiredControllerSize(Controller& controller, const Size& requestedControllerSize, const OperationsMask& requestedOperationsMask)
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
- Vector3 naturalSize;
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->CalculateLayoutSizeOnRequiredControllerSize\n");
+ Size calculatedLayoutSize;
- // Make sure the model is up-to-date before layouting
- controller.ProcessModifyEvents();
+ Controller::Impl& impl = *controller.mImpl;
+ ModelPtr& model = impl.mModel;
+ VisualModelPtr& visualModel = model->mVisualModel;
- Controller::Impl& impl = *controller.mImpl;
- ModelPtr& model = impl.mModel;
- VisualModelPtr& visualModel = model->mVisualModel;
- if( impl.mRecalculateNaturalSize )
+ // Operations that can be done only once until the text changes.
+ const OperationsMask onlyOnceOperations = static_cast<OperationsMask>(CONVERT_TO_UTF32 |
+ GET_SCRIPTS |
+ VALIDATE_FONTS |
+ GET_LINE_BREAKS |
+ BIDI_INFO |
+ SHAPE_TEXT |
+ GET_GLYPH_METRICS);
+
+ const OperationsMask sizeOperations = static_cast<OperationsMask>(LAYOUT | ALIGN | REORDER);
+
+ // Set the update info to relayout the whole text.
+ TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
+ if((0 == textUpdateInfo.mNumberOfCharactersToAdd) &&
+ (0 == textUpdateInfo.mPreviousNumberOfCharacters) &&
+ ((visualModel->mControlSize.width < Math::MACHINE_EPSILON_1000) || (visualModel->mControlSize.height < Math::MACHINE_EPSILON_1000)))
{
- // Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
- GET_SCRIPTS |
- VALIDATE_FONTS |
- GET_LINE_BREAKS |
- BIDI_INFO |
- SHAPE_TEXT |
- GET_GLYPH_METRICS );
+ textUpdateInfo.mNumberOfCharactersToAdd = model->mLogicalModel->mText.Count();
+ }
+ textUpdateInfo.mParagraphCharacterIndex = 0u;
+ textUpdateInfo.mRequestedNumberOfCharacters = model->mLogicalModel->mText.Count();
- // Set the update info to relayout the whole text.
- TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
- textUpdateInfo.mParagraphCharacterIndex = 0u;
- textUpdateInfo.mRequestedNumberOfCharacters = model->mLogicalModel->mText.Count();
+ // Get a reference to the pending operations member
+ OperationsMask& operationsPending = impl.mOperationsPending;
- // Make sure the model is up-to-date before layouting
- impl.UpdateModel( onlyOnceOperations );
+ // Store the actual control's size to restore later.
+ const Size actualControlSize = visualModel->mControlSize;
- // Get a reference to the pending operations member
- OperationsMask& operationsPending = impl.mOperationsPending;
+ // Whether the text control is editable
+ const bool isEditable = NULL != impl.mEventData;
- // Layout the text for the new width.
- operationsPending = static_cast<OperationsMask>( operationsPending | LAYOUT | REORDER );
+ if(!isEditable)
+ {
+ impl.UpdateModel(onlyOnceOperations);
- // Store the actual control's size to restore later.
- const Size actualControlSize = visualModel->mControlSize;
+ DoRelayout(impl,
+ requestedControllerSize,
+ static_cast<OperationsMask>(onlyOnceOperations | requestedOperationsMask),
+ calculatedLayoutSize);
- DoRelayout( controller,
- Size( MAX_FLOAT, MAX_FLOAT ),
- static_cast<OperationsMask>( onlyOnceOperations |
- LAYOUT | REORDER ),
- naturalSize.GetVectorXY() );
+ textUpdateInfo.Clear();
+ textUpdateInfo.mClearAll = true;
// Do not do again the only once operations.
- operationsPending = static_cast<OperationsMask>( operationsPending & ~onlyOnceOperations );
+ operationsPending = static_cast<OperationsMask>(operationsPending & ~onlyOnceOperations);
+ }
+ else
+ {
+ // This is to keep Index to the first character to be updated.
+ // Then restore it after calling Clear method.
+ auto updateInfoCharIndexBackup = textUpdateInfo.mCharacterIndex;
- // Do the size related operations again.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- REORDER );
- operationsPending = static_cast<OperationsMask>( operationsPending | sizeOperations );
+ // Layout the text for the new width.
+ // Apply the pending operations, requested operations and the only once operations.
+ // Then remove onlyOnceOperations
+ operationsPending = static_cast<OperationsMask>(operationsPending | requestedOperationsMask | onlyOnceOperations);
- // Stores the natural size to avoid recalculate it again
- // unless the text/style changes.
- visualModel->SetNaturalSize( naturalSize.GetVectorXY() );
+ // Make sure the model is up-to-date before layouting
+ impl.UpdateModel(static_cast<OperationsMask>(operationsPending & ~UPDATE_LAYOUT_SIZE));
- impl.mRecalculateNaturalSize = false;
+ DoRelayout(impl,
+ requestedControllerSize,
+ static_cast<OperationsMask>(operationsPending & ~UPDATE_LAYOUT_SIZE),
+ calculatedLayoutSize);
// Clear the update info. This info will be set the next time the text is updated.
textUpdateInfo.Clear();
- textUpdateInfo.mClearAll = true;
- // Restore the actual control's size.
- visualModel->mControlSize = actualControlSize;
+ //TODO: Refactor "DoRelayout" and extract common code of size calculation without modifying attributes of mVisualModel,
+ //TODO: then calculate GlyphPositions. Lines, Size, Layout for Natural-Size
+ //TODO: and utilize the values in OperationsPending and TextUpdateInfo without changing the original one.
+ //TODO: Also it will improve performance because there is no need todo FullRelyout on the next need for layouting.
+
+ // FullRelayoutNeeded should be true because DoRelayout is MAX_FLOAT, MAX_FLOAT.
+ // By this no need to take backup and restore it.
+ textUpdateInfo.mFullRelayoutNeeded = true;
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
+ // Restore mCharacterIndex. Because "Clear" set it to the maximum integer.
+ // The "CalculateTextUpdateIndices" does not work proprely because the mCharacterIndex will be greater than mPreviousNumberOfCharacters.
+ // Which apply an assumption to update only the last paragraph. That could cause many of out of index crashes.
+ textUpdateInfo.mCharacterIndex = updateInfoCharIndexBackup;
+ }
+
+ // Do the size related operations again.
+ operationsPending = static_cast<OperationsMask>(operationsPending | sizeOperations);
+
+ // Restore the actual control's size.
+ visualModel->mControlSize = actualControlSize;
+
+ return calculatedLayoutSize;
+}
+
+Vector3 Controller::Relayouter::GetNaturalSize(Controller& controller)
+{
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n");
+ Vector3 naturalSizeVec3;
+
+ // Make sure the model is up-to-date before layouting
+ EventHandler::ProcessModifyEvents(controller);
+
+ Controller::Impl& impl = *controller.mImpl;
+ ModelPtr& model = impl.mModel;
+ VisualModelPtr& visualModel = model->mVisualModel;
+
+ if(impl.mRecalculateNaturalSize)
+ {
+ Size naturalSize;
+
+ // Layout the text for the new width.
+ OperationsMask requestedOperationsMask = static_cast<OperationsMask>(LAYOUT | REORDER);
+ Size sizeMaxWidthAndMaxHeight = Size(MAX_FLOAT, MAX_FLOAT);
+
+ naturalSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeMaxWidthAndMaxHeight, requestedOperationsMask);
+
+ // Stores the natural size to avoid recalculate it again
+ // unless the text/style changes.
+ visualModel->SetNaturalSize(naturalSize);
+ naturalSizeVec3 = naturalSize;
+
+ impl.mRecalculateNaturalSize = false;
+
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSizeVec3.x, naturalSizeVec3.y, naturalSizeVec3.z);
}
else
{
- naturalSize = visualModel->GetNaturalSize();
+ naturalSizeVec3 = visualModel->GetNaturalSize();
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSizeVec3.x, naturalSizeVec3.y, naturalSizeVec3.z);
}
- naturalSize.x = ConvertToEven( naturalSize.x );
- naturalSize.y = ConvertToEven( naturalSize.y );
+ naturalSizeVec3.x = ConvertToEven(naturalSizeVec3.x);
+ naturalSizeVec3.y = ConvertToEven(naturalSizeVec3.y);
- return naturalSize;
+ return naturalSizeVec3;
}
bool Controller::Relayouter::CheckForTextFit(Controller& controller, float pointSize, const Size& layoutSize)
{
- Size textSize;
- Controller::Impl& impl = *controller.mImpl;
- TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
+ Size textSize;
+ Controller::Impl& impl = *controller.mImpl;
+ TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
impl.mFontDefaults->mFitPointSize = pointSize;
- impl.mFontDefaults->sizeDefined = true;
- controller.ClearFontData();
+ impl.mFontDefaults->sizeDefined = true;
+ impl.ClearFontData();
// Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
- GET_SCRIPTS |
- VALIDATE_FONTS |
- GET_LINE_BREAKS |
- BIDI_INFO |
- SHAPE_TEXT|
- GET_GLYPH_METRICS );
-
- textUpdateInfo.mParagraphCharacterIndex = 0u;
+ const OperationsMask onlyOnceOperations = static_cast<OperationsMask>(CONVERT_TO_UTF32 |
+ GET_SCRIPTS |
+ VALIDATE_FONTS |
+ GET_LINE_BREAKS |
+ BIDI_INFO |
+ SHAPE_TEXT |
+ GET_GLYPH_METRICS);
+
+ textUpdateInfo.mParagraphCharacterIndex = 0u;
textUpdateInfo.mRequestedNumberOfCharacters = impl.mModel->mLogicalModel->mText.Count();
// Make sure the model is up-to-date before layouting
- impl.UpdateModel( onlyOnceOperations );
+ impl.UpdateModel(onlyOnceOperations);
- DoRelayout( controller,
- Size( layoutSize.width, MAX_FLOAT ),
- static_cast<OperationsMask>( onlyOnceOperations | LAYOUT),
- textSize);
+ DoRelayout(impl,
+ Size(layoutSize.width, MAX_FLOAT),
+ static_cast<OperationsMask>(onlyOnceOperations | LAYOUT),
+ textSize);
// Clear the update info. This info will be set the next time the text is updated.
textUpdateInfo.Clear();
textUpdateInfo.mClearAll = true;
- if( textSize.width > layoutSize.width || textSize.height > layoutSize.height )
+ if(textSize.width > layoutSize.width || textSize.height > layoutSize.height)
{
return false;
}
return true;
}
-float Controller::Relayouter::GetHeightForWidth(Controller& controller, float width)
+void Controller::Relayouter::FitPointSizeforLayout(Controller& controller, const Size& layoutSize)
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", &controller, width );
- // Make sure the model is up-to-date before layouting
- controller.ProcessModifyEvents();
-
Controller::Impl& impl = *controller.mImpl;
- ModelPtr& model = impl.mModel;
- VisualModelPtr& visualModel = model->mVisualModel;
- TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
- Size layoutSize;
- if( fabsf( width - visualModel->mControlSize.width ) > Math::MACHINE_EPSILON_1000 ||
- textUpdateInfo.mFullRelayoutNeeded ||
- textUpdateInfo.mClearAll )
+ const OperationsMask operations = impl.mOperationsPending;
+ if(NO_OPERATION != (UPDATE_LAYOUT_SIZE & operations) || impl.mTextFitContentSize != layoutSize)
{
- // Operations that can be done only once until the text changes.
- const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
- GET_SCRIPTS |
- VALIDATE_FONTS |
- GET_LINE_BREAKS |
- BIDI_INFO |
- SHAPE_TEXT |
- GET_GLYPH_METRICS );
+ ModelPtr& model = impl.mModel;
- // Set the update info to relayout the whole text.
- textUpdateInfo.mParagraphCharacterIndex = 0u;
- textUpdateInfo.mRequestedNumberOfCharacters = model->mLogicalModel->mText.Count();
+ bool actualellipsis = model->mElideEnabled;
+ float minPointSize = impl.mTextFitMinSize;
+ float maxPointSize = impl.mTextFitMaxSize;
+ float pointInterval = impl.mTextFitStepSize;
+ float currentFitPointSize = impl.mFontDefaults->mFitPointSize;
- // Make sure the model is up-to-date before layouting
- impl.UpdateModel( onlyOnceOperations );
+ model->mElideEnabled = false;
+ Vector<float> pointSizeArray;
- // Get a reference to the pending operations member
- OperationsMask& operationsPending = impl.mOperationsPending;
+ // check zero value
+ if(pointInterval < 1.f)
+ {
+ impl.mTextFitStepSize = pointInterval = 1.0f;
+ }
- // Layout the text for the new width.
- operationsPending = static_cast<OperationsMask>( operationsPending | LAYOUT );
+ pointSizeArray.Reserve(static_cast<unsigned int>(ceil((maxPointSize - minPointSize) / pointInterval)));
- // Store the actual control's width.
- const float actualControlWidth = visualModel->mControlSize.width;
+ for(float i = minPointSize; i < maxPointSize; i += pointInterval)
+ {
+ pointSizeArray.PushBack(i);
+ }
- DoRelayout( controller,
- Size( width, MAX_FLOAT ),
- static_cast<OperationsMask>( onlyOnceOperations |
- LAYOUT ),
- layoutSize );
+ pointSizeArray.PushBack(maxPointSize);
- // Do not do again the only once operations.
- operationsPending = static_cast<OperationsMask>( operationsPending & ~onlyOnceOperations );
+ int bestSizeIndex = 0;
+ int min = bestSizeIndex + 1;
+ int max = pointSizeArray.Size() - 1;
+ while(min <= max)
+ {
+ int destI = (min + max) / 2;
- // Do the size related operations again.
- const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
- ALIGN |
- REORDER );
+ if(CheckForTextFit(controller, pointSizeArray[destI], layoutSize))
+ {
+ bestSizeIndex = min;
+ min = destI + 1;
+ }
+ else
+ {
+ max = destI - 1;
+ bestSizeIndex = max;
+ }
+ }
- operationsPending = static_cast<OperationsMask>( operationsPending | sizeOperations );
+ model->mElideEnabled = actualellipsis;
+ if(currentFitPointSize != pointSizeArray[bestSizeIndex])
+ {
+ impl.mTextFitChanged = true;
+ }
+ impl.mFontDefaults->mFitPointSize = pointSizeArray[bestSizeIndex];
+ impl.mFontDefaults->sizeDefined = true;
+ impl.ClearFontData();
+ }
+}
- // Clear the update info. This info will be set the next time the text is updated.
- textUpdateInfo.Clear();
- textUpdateInfo.mClearAll = true;
+float Controller::Relayouter::GetHeightForWidth(Controller& controller, float width)
+{
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", &controller, width);
+
+ // Make sure the model is up-to-date before layouting
+ EventHandler::ProcessModifyEvents(controller);
- // Restore the actual control's width.
- visualModel->mControlSize.width = actualControlWidth;
+ Controller::Impl& impl = *controller.mImpl;
+ ModelPtr& model = impl.mModel;
+ VisualModelPtr& visualModel = model->mVisualModel;
+ TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
+
+ Size layoutSize;
+
+ if(fabsf(width - visualModel->mControlSize.width) > Math::MACHINE_EPSILON_1000 ||
+ textUpdateInfo.mFullRelayoutNeeded ||
+ textUpdateInfo.mClearAll)
+ {
+ // Layout the text for the new width.
+ OperationsMask requestedOperationsMask = static_cast<OperationsMask>(LAYOUT);
+ Size sizeRequestedWidthAndMaxHeight = Size(width, MAX_FLOAT);
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
+ layoutSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeRequestedWidthAndMaxHeight, requestedOperationsMask);
+
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height);
}
else
{
layoutSize = visualModel->GetLayoutSize();
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height);
}
return layoutSize.height;
Controller::UpdateTextType Controller::Relayouter::Relayout(Controller& controller, const Size& size, Dali::LayoutDirection::Type layoutDirection)
{
- Controller::Impl& impl = *controller.mImpl;
- ModelPtr& model = impl.mModel;
- VisualModelPtr& visualModel = model->mVisualModel;
- TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
+ Controller::Impl& impl = *controller.mImpl;
+ ModelPtr& model = impl.mModel;
+ VisualModelPtr& visualModel = model->mVisualModel;
+ TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f, autoScroll[%s]\n", &controller, size.width, size.height, impl.mIsAutoScrollEnabled ?"true":"false" );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f, autoScroll[%s]\n", &controller, size.width, size.height, impl.mIsAutoScrollEnabled ? "true" : "false");
UpdateTextType updateTextType = NONE_UPDATED;
- if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
+ if((size.width < Math::MACHINE_EPSILON_1000) || (size.height < Math::MACHINE_EPSILON_1000))
{
- if( 0u != visualModel->mGlyphPositions.Count() )
+ if(0u != visualModel->mGlyphPositions.Count())
{
visualModel->mGlyphPositions.Clear();
updateTextType = MODEL_UPDATED;
textUpdateInfo.Clear();
// Not worth to relayout if width or height is equal to zero.
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n");
return updateTextType;
}
// Whether a new size has been set.
- const bool newSize = ( size != visualModel->mControlSize );
+ const bool newSize = (size != visualModel->mControlSize);
// Get a reference to the pending operations member
OperationsMask& operationsPending = impl.mOperationsPending;
- if( newSize )
+ if(newSize)
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", visualModel->mControlSize.width, visualModel->mControlSize.height );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", visualModel->mControlSize.width, visualModel->mControlSize.height);
- if( ( 0 == textUpdateInfo.mNumberOfCharactersToAdd ) &&
- ( 0 == textUpdateInfo.mPreviousNumberOfCharacters ) &&
- ( ( visualModel->mControlSize.width < Math::MACHINE_EPSILON_1000 ) || ( visualModel->mControlSize.height < Math::MACHINE_EPSILON_1000 ) ) )
+ if((0 == textUpdateInfo.mNumberOfCharactersToAdd) &&
+ (0 == textUpdateInfo.mPreviousNumberOfCharacters) &&
+ ((visualModel->mControlSize.width < Math::MACHINE_EPSILON_1000) || (visualModel->mControlSize.height < Math::MACHINE_EPSILON_1000)))
{
textUpdateInfo.mNumberOfCharactersToAdd = model->mLogicalModel->mText.Count();
}
// Layout operations that need to be done if the size changes.
- operationsPending = static_cast<OperationsMask>( operationsPending |
- LAYOUT |
- ALIGN |
- UPDATE_LAYOUT_SIZE |
- REORDER );
+ operationsPending = static_cast<OperationsMask>(operationsPending |
+ LAYOUT |
+ ALIGN |
+ UPDATE_LAYOUT_SIZE |
+ REORDER);
// Set the update info to relayout the whole text.
textUpdateInfo.mFullRelayoutNeeded = true;
- textUpdateInfo.mCharacterIndex = 0u;
+ textUpdateInfo.mCharacterIndex = 0u;
// Store the size used to layout the text.
visualModel->mControlSize = size;
}
// Whether there are modify events.
- if( 0u != impl.mModifyEvents.Count() )
+ if(0u != impl.mModifyEvents.Count())
{
// Style operations that need to be done if the text is modified.
- operationsPending = static_cast<OperationsMask>( operationsPending | COLOR );
+ operationsPending = static_cast<OperationsMask>(operationsPending | COLOR);
}
// Set the update info to elide the text.
- if( model->mElideEnabled ||
- ( ( NULL != impl.mEventData ) && impl.mEventData->mIsPlaceholderElideEnabled ) )
+ if(model->mElideEnabled ||
+ ((NULL != impl.mEventData) && impl.mEventData->mIsPlaceholderElideEnabled))
{
// Update Text layout for applying elided
- operationsPending = static_cast<OperationsMask>( operationsPending |
- ALIGN |
- LAYOUT |
- UPDATE_LAYOUT_SIZE |
- REORDER );
+ operationsPending = static_cast<OperationsMask>(operationsPending |
+ ALIGN |
+ LAYOUT |
+ UPDATE_LAYOUT_SIZE |
+ REORDER);
textUpdateInfo.mFullRelayoutNeeded = true;
- textUpdateInfo.mCharacterIndex = 0u;
+ textUpdateInfo.mCharacterIndex = 0u;
}
- if( model->mMatchSystemLanguageDirection && impl.mLayoutDirection != layoutDirection )
+ bool layoutDirectionChanged = false;
+ if(impl.mLayoutDirection != layoutDirection)
{
+ // Flag to indicate that the layout direction has changed.
+ layoutDirectionChanged = true;
// Clear the update info. This info will be set the next time the text is updated.
textUpdateInfo.mClearAll = true;
// Apply modifications to the model
// Shape the text again is needed because characters like '()[]{}' have to be mirrored and the glyphs generated again.
- operationsPending = static_cast<OperationsMask>( operationsPending |
- GET_GLYPH_METRICS |
- SHAPE_TEXT |
- UPDATE_DIRECTION |
- LAYOUT |
- BIDI_INFO |
- REORDER );
+ operationsPending = static_cast<OperationsMask>(operationsPending |
+ GET_GLYPH_METRICS |
+ SHAPE_TEXT |
+ UPDATE_DIRECTION |
+ ALIGN |
+ LAYOUT |
+ BIDI_INFO |
+ REORDER);
impl.mLayoutDirection = layoutDirection;
}
// Make sure the model is up-to-date before layouting.
- controller.ProcessModifyEvents();
- bool updated = impl.UpdateModel( operationsPending );
+ EventHandler::ProcessModifyEvents(controller);
+ bool updated = impl.UpdateModel(operationsPending);
// Layout the text.
Size layoutSize;
- updated = DoRelayout( controller, size, operationsPending, layoutSize ) || updated;
+ updated = DoRelayout(impl, size, operationsPending, layoutSize) || updated;
-
- if( updated )
+ if(updated)
{
updateTextType = MODEL_UPDATED;
}
// Do not re-do any operation until something changes.
- operationsPending = NO_OPERATION;
+ operationsPending = NO_OPERATION;
model->mScrollPositionLast = model->mScrollPosition;
// Whether the text control is editable
// Keep the current offset as it will be used to update the decorator's positions (if the size changes).
Vector2 offset;
- if( newSize && isEditable )
+ if(newSize && isEditable)
{
offset = model->mScrollPosition;
}
- if( !isEditable || !controller.IsMultiLineEnabled() )
+ if(!isEditable || !controller.IsMultiLineEnabled())
{
// After doing the text layout, the vertical offset to place the actor in the desired position can be calculated.
- controller.CalculateVerticalOffset( size );
+ CalculateVerticalOffset(impl, size);
+ }
+ else // TextEditor
+ {
+ // If layoutSize is bigger than size, vertical align has no meaning.
+ if(layoutSize.y < size.y)
+ {
+ CalculateVerticalOffset(impl, size);
+ if(impl.mEventData)
+ {
+ impl.mEventData->mScrollAfterDelete = false;
+ }
+ }
}
- if( isEditable )
+ if(isEditable)
{
- if( newSize )
+ if(newSize || layoutDirectionChanged)
{
- // If there is a new size, the scroll position needs to be clamped.
- impl.ClampHorizontalScroll( layoutSize );
+ // If there is a new size or layout direction is changed, the scroll position needs to be clamped.
+ impl.ClampHorizontalScroll(layoutSize);
// Update the decorator's positions is needed if there is a new size.
- impl.mEventData->mDecorator->UpdatePositions( model->mScrollPosition - offset );
+ impl.mEventData->mDecorator->UpdatePositions(model->mScrollPosition - offset);
+
+ // All decorator elements need to be updated.
+ if(EventData::IsEditingState(impl.mEventData->mState))
+ {
+ impl.mEventData->mScrollAfterUpdatePosition = true;
+ impl.mEventData->mUpdateCursorPosition = true;
+ impl.mEventData->mUpdateGrabHandlePosition = true;
+ }
+ else if(impl.mEventData->mState == EventData::SELECTING)
+ {
+ impl.mEventData->mUpdateHighlightBox = true;
+ }
}
// Move the cursor, grab handle etc.
- if( impl.ProcessInputEvents() )
+ if(impl.ProcessInputEvents())
{
- updateTextType = static_cast<UpdateTextType>( updateTextType | DECORATOR_UPDATED );
+ updateTextType = static_cast<UpdateTextType>(updateTextType | DECORATOR_UPDATED);
}
}
// Clear the update info. This info will be set the next time the text is updated.
textUpdateInfo.Clear();
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::Relayout\n");
return updateTextType;
}
-bool Controller::Relayouter::DoRelayout(Controller& controller, const Size& size, OperationsMask operationsRequired, Size& layoutSize )
+bool Controller::Relayouter::DoRelayout(Controller::Impl& impl, const Size& size, OperationsMask operationsRequired, Size& layoutSize)
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", &controller, size.width, size.height );
- bool viewUpdated( false );
-
- Controller::Impl& impl = *controller.mImpl;
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->Controller::Relayouter::DoRelayout %p size %f,%f\n", &impl, size.width, size.height);
+ bool viewUpdated(false);
// Calculate the operations to be done.
- const OperationsMask operations = static_cast<OperationsMask>( impl.mOperationsPending & operationsRequired );
+ const OperationsMask operations = static_cast<OperationsMask>(impl.mOperationsPending & operationsRequired);
- TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
- const CharacterIndex startIndex = textUpdateInfo.mParagraphCharacterIndex;
- const Length requestedNumberOfCharacters = textUpdateInfo.mRequestedNumberOfCharacters;
+ TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
+ const CharacterIndex startIndex = textUpdateInfo.mParagraphCharacterIndex;
+ const Length requestedNumberOfCharacters = textUpdateInfo.mRequestedNumberOfCharacters;
// Get the current layout size.
VisualModelPtr& visualModel = impl.mModel->mVisualModel;
- layoutSize = visualModel->GetLayoutSize();
+ layoutSize = visualModel->GetLayoutSize();
- if( NO_OPERATION != ( LAYOUT & operations ) )
+ if(NO_OPERATION != (LAYOUT & operations))
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout LAYOUT & operations\n");
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->Controller::DoRelayout LAYOUT & operations\n");
// Some vectors with data needed to layout and reorder may be void
// after the first time the text has been laid out.
// Fill the vectors again.
// Calculate the number of glyphs to layout.
- const Vector<GlyphIndex>& charactersToGlyph = visualModel->mCharactersToGlyph;
- const Vector<Length>& glyphsPerCharacter = visualModel->mGlyphsPerCharacter;
- const GlyphIndex* const charactersToGlyphBuffer = charactersToGlyph.Begin();
- const Length* const glyphsPerCharacterBuffer = glyphsPerCharacter.Begin();
+ const Vector<GlyphIndex>& charactersToGlyph = visualModel->mCharactersToGlyph;
+ const Vector<Length>& glyphsPerCharacter = visualModel->mGlyphsPerCharacter;
+ const GlyphIndex* const charactersToGlyphBuffer = charactersToGlyph.Begin();
+ const Length* const glyphsPerCharacterBuffer = glyphsPerCharacter.Begin();
- const CharacterIndex lastIndex = startIndex + ( ( requestedNumberOfCharacters > 0u ) ? requestedNumberOfCharacters - 1u : 0u );
- const GlyphIndex startGlyphIndex = textUpdateInfo.mStartGlyphIndex;
+ const CharacterIndex lastIndex = startIndex + ((requestedNumberOfCharacters > 0u) ? requestedNumberOfCharacters - 1u : 0u);
+ const GlyphIndex startGlyphIndex = textUpdateInfo.mStartGlyphIndex;
// Make sure the index is not out of bound
- if ( charactersToGlyph.Count() != glyphsPerCharacter.Count() ||
- requestedNumberOfCharacters > charactersToGlyph.Count() ||
- ( lastIndex > charactersToGlyph.Count() && charactersToGlyph.Count() > 0u ) )
+ if(charactersToGlyph.Count() != glyphsPerCharacter.Count() ||
+ requestedNumberOfCharacters > charactersToGlyph.Count() ||
+ (lastIndex > charactersToGlyph.Count() && charactersToGlyph.Count() > 0u))
{
std::string currentText;
- controller.GetText( currentText );
+ impl.GetText(currentText);
- DALI_LOG_ERROR( "Controller::DoRelayout: Attempting to access invalid buffer\n" );
- DALI_LOG_ERROR( "Current text is: %s\n", currentText.c_str() );
- DALI_LOG_ERROR( "startIndex: %u, lastIndex: %u, requestedNumberOfCharacters: %u, charactersToGlyph.Count = %lu, glyphsPerCharacter.Count = %lu\n", startIndex, lastIndex, requestedNumberOfCharacters, charactersToGlyph.Count(), glyphsPerCharacter.Count());
+ DALI_LOG_ERROR("Controller::DoRelayout: Attempting to access invalid buffer\n");
+ DALI_LOG_ERROR("Current text is: %s\n", currentText.c_str());
+ DALI_LOG_ERROR("startIndex: %u, lastIndex: %u, requestedNumberOfCharacters: %u, charactersToGlyph.Count = %lu, glyphsPerCharacter.Count = %lu\n", startIndex, lastIndex, requestedNumberOfCharacters, charactersToGlyph.Count(), glyphsPerCharacter.Count());
return false;
}
- const Length numberOfGlyphs = ( requestedNumberOfCharacters > 0u ) ? *( charactersToGlyphBuffer + lastIndex ) + *( glyphsPerCharacterBuffer + lastIndex ) - startGlyphIndex : 0u;
+ const Length numberOfGlyphs = (requestedNumberOfCharacters > 0u) ? *(charactersToGlyphBuffer + lastIndex) + *(glyphsPerCharacterBuffer + lastIndex) - startGlyphIndex : 0u;
const Length totalNumberOfGlyphs = visualModel->mGlyphs.Count();
- if( 0u == totalNumberOfGlyphs )
+ if(0u == totalNumberOfGlyphs)
{
- if( NO_OPERATION != ( UPDATE_LAYOUT_SIZE & operations ) )
+ if(NO_OPERATION != (UPDATE_LAYOUT_SIZE & operations))
{
- visualModel->SetLayoutSize( Size::ZERO );
+ visualModel->SetLayoutSize(Size::ZERO);
}
// Nothing else to do if there is no glyphs.
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n");
return true;
}
// Set the layout parameters.
- Layout::Parameters layoutParameters( size, impl.mModel);
+ Layout::Parameters layoutParameters(size, impl.mModel);
// Resize the vector of positions to have the same size than the vector of glyphs.
Vector<Vector2>& glyphPositions = visualModel->mGlyphPositions;
- glyphPositions.Resize( totalNumberOfGlyphs );
+ glyphPositions.Resize(totalNumberOfGlyphs);
// Whether the last character is a new paragraph character.
- const Character* const textBuffer = impl.mModel->mLogicalModel->mText.Begin();
- textUpdateInfo.mIsLastCharacterNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( impl.mModel->mLogicalModel->mText.Count() - 1u ) ) );
- layoutParameters.isLastNewParagraph = textUpdateInfo.mIsLastCharacterNewParagraph;
+ const Character* const textBuffer = impl.mModel->mLogicalModel->mText.Begin();
+ textUpdateInfo.mIsLastCharacterNewParagraph = TextAbstraction::IsNewParagraph(*(textBuffer + (impl.mModel->mLogicalModel->mText.Count() - 1u)));
+ layoutParameters.isLastNewParagraph = textUpdateInfo.mIsLastCharacterNewParagraph;
// The initial glyph and the number of glyphs to layout.
- layoutParameters.startGlyphIndex = startGlyphIndex;
- layoutParameters.numberOfGlyphs = numberOfGlyphs;
- layoutParameters.startLineIndex = textUpdateInfo.mStartLineIndex;
+ layoutParameters.startGlyphIndex = startGlyphIndex;
+ layoutParameters.numberOfGlyphs = numberOfGlyphs;
+ layoutParameters.startLineIndex = textUpdateInfo.mStartLineIndex;
layoutParameters.estimatedNumberOfLines = textUpdateInfo.mEstimatedNumberOfLines;
// Update the ellipsis
bool elideTextEnabled = impl.mModel->mElideEnabled;
+ auto ellipsisPosition = impl.mModel->mEllipsisPosition;
- if( NULL != impl.mEventData )
+ if(NULL != impl.mEventData)
{
- if( impl.mEventData->mPlaceholderEllipsisFlag && impl.IsShowingPlaceholderText() )
+ if(impl.mEventData->mPlaceholderEllipsisFlag && impl.IsShowingPlaceholderText())
{
elideTextEnabled = impl.mEventData->mIsPlaceholderElideEnabled;
}
- else if( EventData::INACTIVE != impl.mEventData->mState )
+ else if(EventData::INACTIVE != impl.mEventData->mState)
{
// Disable ellipsis when editing
elideTextEnabled = false;
}
// Reset the scroll position in inactive state
- if( elideTextEnabled && ( impl.mEventData->mState == EventData::INACTIVE ) )
+ if(elideTextEnabled && (impl.mEventData->mState == EventData::INACTIVE))
{
- controller.ResetScrollPosition();
+ impl.ResetScrollPosition();
}
}
// Update the visual model.
bool isAutoScrollEnabled = impl.mIsAutoScrollEnabled;
Size newLayoutSize;
- viewUpdated = impl.mLayoutEngine.LayoutText( layoutParameters,
- newLayoutSize,
- elideTextEnabled,
- isAutoScrollEnabled );
+ viewUpdated = impl.mLayoutEngine.LayoutText(layoutParameters,
+ newLayoutSize,
+ elideTextEnabled,
+ isAutoScrollEnabled,
+ ellipsisPosition);
impl.mIsAutoScrollEnabled = isAutoScrollEnabled;
- viewUpdated = viewUpdated || ( newLayoutSize != layoutSize );
+ viewUpdated = viewUpdated || (newLayoutSize != layoutSize);
- if( viewUpdated )
+ if(viewUpdated)
{
layoutSize = newLayoutSize;
- if( NO_OPERATION != ( UPDATE_DIRECTION & operations ) )
+ if(NO_OPERATION != (UPDATE_DIRECTION & operations))
{
impl.mIsTextDirectionRTL = false;
}
- if ( ( NO_OPERATION != ( UPDATE_DIRECTION & operations ) ) && !visualModel->mLines.Empty() )
+ if((NO_OPERATION != (UPDATE_DIRECTION & operations)) && !visualModel->mLines.Empty())
{
impl.mIsTextDirectionRTL = visualModel->mLines[0u].direction;
}
// Sets the layout size.
- if( NO_OPERATION != ( UPDATE_LAYOUT_SIZE & operations ) )
+ if(NO_OPERATION != (UPDATE_LAYOUT_SIZE & operations))
{
- visualModel->SetLayoutSize( layoutSize );
+ visualModel->SetLayoutSize(layoutSize);
}
} // view updated
}
- if( NO_OPERATION != ( ALIGN & operations ) )
+ if(NO_OPERATION != (ALIGN & operations))
{
- // The laid-out lines.
- Vector<LineRun>& lines = visualModel->mLines;
-
- CharacterIndex alignStartIndex = startIndex;
- Length alignRequestedNumberOfCharacters = requestedNumberOfCharacters;
-
- // the whole text needs to be full aligned.
- // If you do not do a full aligned, only the last line of the multiline input is aligned.
- if( impl.mEventData && impl.mEventData->mUpdateAlignment )
- {
- alignStartIndex = 0u;
- alignRequestedNumberOfCharacters = impl.mModel->mLogicalModel->mText.Count();
- impl.mEventData->mUpdateAlignment = false;
- }
-
- // Need to align with the control's size as the text may contain lines
- // starting either with left to right text or right to left.
- impl.mLayoutEngine.Align( size,
- alignStartIndex,
- alignRequestedNumberOfCharacters,
- impl.mModel->mHorizontalAlignment,
- lines,
- impl.mModel->mAlignmentOffset,
- impl.mLayoutDirection,
- impl.mModel->mMatchSystemLanguageDirection );
-
+ DoRelayoutHorizontalAlignment(impl, size, startIndex, requestedNumberOfCharacters);
viewUpdated = true;
}
#if defined(DEBUG_ENABLED)
std::string currentText;
- controller.GetText( currentText );
- DALI_LOG_INFO( gLogFilter, Debug::Concise, "Controller::DoRelayout [%p] mImpl->mIsTextDirectionRTL[%s] [%s]\n", &controller, (impl.mIsTextDirectionRTL)?"true":"false", currentText.c_str() );
+ impl.GetText(currentText);
+ DALI_LOG_INFO(gLogFilter, Debug::Concise, "Controller::Relayouter::DoRelayout [%p] mImpl->mIsTextDirectionRTL[%s] [%s]\n", &impl, (impl.mIsTextDirectionRTL) ? "true" : "false", currentText.c_str());
#endif
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
+ DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::Relayouter::DoRelayout, view updated %s\n", (viewUpdated ? "true" : "false"));
return viewUpdated;
}
-void Controller::Relayouter::CalculateVerticalOffset(Controller& controller, const Size& controlSize)
+void Controller::Relayouter::DoRelayoutHorizontalAlignment(Controller::Impl& impl,
+ const Size& size,
+ const CharacterIndex startIndex,
+ const Length requestedNumberOfCharacters)
{
- Controller::Impl& impl = *controller.mImpl;
- ModelPtr& model = impl.mModel;
- Size layoutSize = model->mVisualModel->GetLayoutSize();
+ // The visualModel
+ VisualModelPtr& visualModel = impl.mModel->mVisualModel;
+
+ // The laid-out lines.
+ Vector<LineRun>& lines = visualModel->mLines;
+
+ CharacterIndex alignStartIndex = startIndex;
+ Length alignRequestedNumberOfCharacters = requestedNumberOfCharacters;
- if( fabsf( layoutSize.height ) < Math::MACHINE_EPSILON_1000 )
+ // the whole text needs to be full aligned.
+ // If you do not do a full aligned, only the last line of the multiline input is aligned.
+ if(impl.mEventData && impl.mEventData->mUpdateAlignment)
+ {
+ alignStartIndex = 0u;
+ alignRequestedNumberOfCharacters = impl.mModel->mLogicalModel->mText.Count();
+ impl.mEventData->mUpdateAlignment = false;
+ }
+
+ // If there is no BoundedParagraphRuns then apply the alignment of controller.
+ // Check whether the layout is single line. It's needed to apply one alignment for single-line.
+ // In single-line layout case we need to check whether to follow the alignment of controller or the first BoundedParagraph.
+ // Apply BoundedParagraph's alignment if and only if there is one BoundedParagraph contains all characters. Otherwise follow controller's alignment.
+ const bool isFollowControllerAlignment = ((impl.mModel->GetNumberOfBoundedParagraphRuns() == 0u) ||
+ ((Layout::Engine::SINGLE_LINE_BOX == impl.mLayoutEngine.GetLayout()) &&
+ (impl.mModel->GetBoundedParagraphRuns()[0].characterRun.numberOfCharacters != impl.mModel->mLogicalModel->mText.Count())));
+
+ if(isFollowControllerAlignment)
+ {
+ // Need to align with the control's size as the text may contain lines
+ // starting either with left to right text or right to left.
+ impl.mLayoutEngine.Align(size,
+ alignStartIndex,
+ alignRequestedNumberOfCharacters,
+ impl.mModel->mHorizontalAlignment,
+ lines,
+ impl.mModel->mAlignmentOffset,
+ impl.mLayoutDirection,
+ (impl.mModel->mMatchLayoutDirection != DevelText::MatchLayoutDirection::CONTENTS));
+ }
+ else
+ {
+ //Override the controller horizontal-alignment by horizontal-alignment of bounded paragraph.
+ const Length& numberOfBoundedParagraphRuns = impl.mModel->GetNumberOfBoundedParagraphRuns();
+ const Vector<BoundedParagraphRun>& boundedParagraphRuns = impl.mModel->GetBoundedParagraphRuns();
+ const CharacterIndex alignEndIndex = alignStartIndex + alignRequestedNumberOfCharacters - 1u;
+
+ Length alignIndex = alignStartIndex;
+ Length boundedParagraphRunIndex = 0u;
+
+ while(alignIndex <= alignEndIndex && boundedParagraphRunIndex < numberOfBoundedParagraphRuns)
+ {
+ //BP: BoundedParagraph
+ const BoundedParagraphRun& boundedParagraphRun = boundedParagraphRuns[boundedParagraphRunIndex];
+ const CharacterIndex& characterStartIndexBP = boundedParagraphRun.characterRun.characterIndex;
+ const Length& numberOfCharactersBP = boundedParagraphRun.characterRun.numberOfCharacters;
+ const CharacterIndex characterEndIndexBP = characterStartIndexBP + numberOfCharactersBP - 1u;
+
+ CharacterIndex decidedAlignStartIndex = alignIndex;
+ Length decidedAlignNumberOfCharacters = alignEndIndex - alignIndex + 1u;
+ Text::HorizontalAlignment::Type decidedHorizontalAlignment = impl.mModel->mHorizontalAlignment;
+
+ /*
+ * Shortcuts to explain indexes cases:
+ *
+ * AS: Alignment Start Index
+ * AE: Alignment End Index
+ * PS: Paragraph Start Index
+ * PE: Paragraph End Index
+ * B: BoundedParagraph Alignment
+ * M: Model Alignment
+ *
+ */
+
+ if(alignIndex < characterStartIndexBP && characterStartIndexBP <= alignEndIndex) /// AS.MMMMMM.PS--------AE
+ {
+ // Alignment from "Alignment Start Index" to index before "Paragraph Start Index" according to "Model Alignment"
+ decidedAlignStartIndex = alignIndex;
+ decidedAlignNumberOfCharacters = characterStartIndexBP - alignIndex;
+ decidedHorizontalAlignment = impl.mModel->mHorizontalAlignment;
+
+ // Need to re-heck the case of current bounded paragraph
+ alignIndex = characterStartIndexBP; // Shift AS to be PS
+ }
+ else if((characterStartIndexBP <= alignIndex && alignIndex <= characterEndIndexBP) || /// ---PS.BBBBBBB.AS.BBBBBBB.PE---
+ (characterStartIndexBP <= alignEndIndex && alignEndIndex <= characterEndIndexBP)) /// ---PS.BBBBBB.AE.BBBBBBB.PE---
+ {
+ // Alignment from "Paragraph Start Index" to "Paragraph End Index" according to "BoundedParagraph Alignment"
+ decidedAlignStartIndex = characterStartIndexBP;
+ decidedAlignNumberOfCharacters = numberOfCharactersBP;
+ decidedHorizontalAlignment = boundedParagraphRun.horizontalAlignmentDefined ? boundedParagraphRun.horizontalAlignment : impl.mModel->mHorizontalAlignment;
+
+ alignIndex = characterEndIndexBP + 1u; // Shift AS to be after PE direct
+ boundedParagraphRunIndex++; // Align then check the case of next bounded paragraph
+ }
+ else
+ {
+ boundedParagraphRunIndex++; // Check the case of next bounded paragraph
+ continue;
+ }
+
+ impl.mLayoutEngine.Align(size,
+ decidedAlignStartIndex,
+ decidedAlignNumberOfCharacters,
+ decidedHorizontalAlignment,
+ lines,
+ impl.mModel->mAlignmentOffset,
+ impl.mLayoutDirection,
+ (impl.mModel->mMatchLayoutDirection != DevelText::MatchLayoutDirection::CONTENTS));
+ }
+
+ //Align the remaining that is not aligned
+ if(alignIndex <= alignEndIndex)
+ {
+ impl.mLayoutEngine.Align(size,
+ alignIndex,
+ (alignEndIndex - alignIndex + 1u),
+ impl.mModel->mHorizontalAlignment,
+ lines,
+ impl.mModel->mAlignmentOffset,
+ impl.mLayoutDirection,
+ (impl.mModel->mMatchLayoutDirection != DevelText::MatchLayoutDirection::CONTENTS));
+ }
+ }
+}
+
+void Controller::Relayouter::CalculateVerticalOffset(Controller::Impl& impl, const Size& controlSize)
+{
+ ModelPtr& model = impl.mModel;
+ VisualModelPtr& visualModel = model->mVisualModel;
+ Size layoutSize = model->mVisualModel->GetLayoutSize();
+ Size oldLayoutSize = layoutSize;
+ float offsetY = 0.f;
+ bool needRecalc = false;
+ float defaultFontLineHeight = impl.GetDefaultFontLineHeight();
+
+ if(fabsf(layoutSize.height) < Math::MACHINE_EPSILON_1000)
{
// Get the line height of the default font.
- layoutSize.height = impl.GetDefaultFontLineHeight();
+ layoutSize.height = defaultFontLineHeight;
+ }
+
+ // Whether the text control is editable
+ const bool isEditable = NULL != impl.mEventData;
+ if(isEditable && layoutSize.height != defaultFontLineHeight && impl.IsShowingPlaceholderText())
+ {
+ // This code prevents the wrong positioning of cursor when the layout size is bigger/smaller than defaultFontLineHeight.
+ // This situation occurs when the size of placeholder text is different from the default text.
+ layoutSize.height = defaultFontLineHeight;
+ needRecalc = true;
}
- switch( model->mVerticalAlignment )
+ switch(model->mVerticalAlignment)
{
case VerticalAlignment::TOP:
{
model->mScrollPosition.y = 0.f;
+ offsetY = 0.f;
break;
}
case VerticalAlignment::CENTER:
{
- model->mScrollPosition.y = floorf( 0.5f * ( controlSize.height - layoutSize.height ) ); // try to avoid pixel alignment.
+ model->mScrollPosition.y = floorf(0.5f * (controlSize.height - layoutSize.height)); // try to avoid pixel alignment.
+ if(needRecalc) offsetY = floorf(0.5f * (layoutSize.height - oldLayoutSize.height));
break;
}
case VerticalAlignment::BOTTOM:
{
model->mScrollPosition.y = controlSize.height - layoutSize.height;
+ if(needRecalc) offsetY = layoutSize.height - oldLayoutSize.height;
break;
}
}
+
+ if(needRecalc)
+ {
+ // Update glyphPositions according to recalculation.
+ const Length positionCount = visualModel->mGlyphPositions.Count();
+ Vector<Vector2>& glyphPositions = visualModel->mGlyphPositions;
+ for(Length index = 0u; index < positionCount; index++)
+ {
+ glyphPositions[index].y += offsetY;
+ }
+ }
}
} // namespace Text
projects / platform / core / uifw / dali-toolkit.git / blobdiff