(Text Label) Ensure we recalculate natural size when multi-line is

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / text / text-controller.cpp

diff --git a/dali-toolkit/internal/text/text-controller.cpp b/dali-toolkit/internal/text/text-controller.cpp
index 6c1bf75..1468941 100755 (executable)
--- a/dali-toolkit/internal/text/text-controller.cpp
+++ b/dali-toolkit/internal/text/text-controller.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2019 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.
@@ -361,6 +361,9 @@ void Controller::SetMultiLineEnabled( bool enable )
     mImpl->mTextUpdateInfo.mFullRelayoutNeeded = true;
     mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
 
+    // Need to recalculate natural size
+    mImpl->mRecalculateNaturalSize = true;
+
     mImpl->RequestRelayout();
   }
 }
@@ -2250,7 +2253,6 @@ Controller::UpdateTextType Controller::Relayout( const Size& size, Dali::LayoutD
 
   UpdateTextType updateTextType = NONE_UPDATED;
 
-  mImpl->mLayoutDirection = layoutDirection;
   if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
   {
     if( 0u != mImpl->mModel->mVisualModel->mGlyphPositions.Count() )
@@ -2318,6 +2320,22 @@ Controller::UpdateTextType Controller::Relayout( const Size& size, Dali::LayoutD
     mImpl->mTextUpdateInfo.mCharacterIndex = 0u;
   }
 
+  if( mImpl->mModel->mMatchSystemLanguageDirection  && mImpl->mLayoutDirection != layoutDirection )
+  {
+    // Clear the update info. This info will be set the next time the text is updated.
+    mImpl->mTextUpdateInfo.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.
+    mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
+                                                             GET_GLYPH_METRICS         |
+                                                             SHAPE_TEXT                |
+                                                             UPDATE_DIRECTION          |
+                                                             LAYOUT                    |
+                                                             BIDI_INFO                 |
+                                                             REORDER );
+    mImpl->mLayoutDirection = layoutDirection;
+  }
+
   // Make sure the model is up-to-date before layouting.
   ProcessModifyEvents();
   bool updated = mImpl->UpdateModel( mImpl->mOperationsPending );
@@ -2328,6 +2346,7 @@ Controller::UpdateTextType Controller::Relayout( const Size& size, Dali::LayoutD
                         mImpl->mOperationsPending,
                         layoutSize ) || updated;
 
+
   if( updated )
   {
     updateTextType = MODEL_UPDATED;
@@ -3601,12 +3620,15 @@ bool Controller::DoRelayout( const Size& size,
     }
 
     // Update the visual model.
+    bool isAutoScrollEnabled = mImpl->mIsAutoScrollEnabled;
     Size newLayoutSize;
     viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
                                                    glyphPositions,
                                                    mImpl->mModel->mVisualModel->mLines,
                                                    newLayoutSize,
-                                                   elideTextEnabled );
+                                                   elideTextEnabled,
+                                                   isAutoScrollEnabled );
+    mImpl->mIsAutoScrollEnabled = isAutoScrollEnabled;
 
     viewUpdated = viewUpdated || ( newLayoutSize != layoutSize );