From 4676b332fc9c9db4a0c0ad47cbab85d30ed1a2e4 Mon Sep 17 00:00:00 2001
From: Victor Cebollada <v.cebollada@samsung.com>
Date: Wed, 18 Mar 2015 11:26:24 +0000
Subject: [PATCH] Bidi - Retrieve a paragraph's direction.

Change-Id: I79eb7ad81f32786ae0decd59c9d5bd6a3a3c87ad
Signed-off-by: Victor Cebollada <v.cebollada@samsung.com>
---
 .../bidirectional-support-impl.cpp                 | 33 ++++++++++++++++++++++
 .../text-abstraction/bidirectional-support-impl.h  |  5 ++++
 .../text-abstraction/bidirectional-support.cpp     |  5 ++++
 .../text-abstraction/bidirectional-support.h       |  9 ++++++
 4 files changed, 52 insertions(+)

diff --git a/text/dali/internal/text-abstraction/bidirectional-support-impl.cpp b/text/dali/internal/text-abstraction/bidirectional-support-impl.cpp
index 041476b..28d35e2 100644
--- a/text/dali/internal/text-abstraction/bidirectional-support-impl.cpp
+++ b/text/dali/internal/text-abstraction/bidirectional-support-impl.cpp
@@ -189,6 +189,29 @@ struct BidirectionalSupport::Plugin
     return updated;
   }
 
+  bool GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const
+  {
+    // Retrieve the paragraph's bidirectional info.
+    const BidirectionalInfo* const bidirectionalInfo = *( mParagraphBidirectionalInfo.Begin() + bidiInfoIndex );
+
+    switch( bidirectionalInfo->paragraphDirection )
+    {
+      case FRIBIDI_PAR_RTL:  // Right-To-Left paragraph.
+      case FRIBIDI_PAR_WRTL: // Weak Right To Left paragraph.
+      {
+        return true;
+      }
+      case FRIBIDI_PAR_LTR:  // Left-To-Right paragraph.
+      case FRIBIDI_PAR_ON:   // DirectiOn-Neutral paragraph.
+      case FRIBIDI_PAR_WLTR: // Weak Left To Right paragraph.
+      {
+        return false;
+      }
+    }
+
+    return false;
+  }
+
   Vector<BidirectionalInfo*> mParagraphBidirectionalInfo; ///< Stores the bidirectional info per paragraph.
   Vector<BidiInfoIndex>      mFreeIndices;                ///< Stores indices of free positions in the bidirectional info vector.
 };
@@ -265,6 +288,16 @@ bool BidirectionalSupport::GetMirroredText( Character* text,
   return mPlugin->GetMirroredText( text, numberOfCharacters );
 }
 
+bool BidirectionalSupport::GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const
+{
+  if( !mPlugin )
+  {
+    return false;
+  }
+
+  return mPlugin->GetParagraphDirection( bidiInfoIndex );
+}
+
 void BidirectionalSupport::CreatePlugin()
 {
   if( !mPlugin )
diff --git a/text/dali/internal/text-abstraction/bidirectional-support-impl.h b/text/dali/internal/text-abstraction/bidirectional-support-impl.h
index 4fc0e4c..ba637b9 100644
--- a/text/dali/internal/text-abstraction/bidirectional-support-impl.h
+++ b/text/dali/internal/text-abstraction/bidirectional-support-impl.h
@@ -81,6 +81,11 @@ public:
   bool GetMirroredText( Character* text,
                         Length numberOfCharacters );
 
+  /**
+   * @copydoc Dali::BidirectionalSupport::GetParagraphDirection()
+   */
+  bool GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const;
+
 private:
 
   /**
diff --git a/text/dali/public-api/text-abstraction/bidirectional-support.cpp b/text/dali/public-api/text-abstraction/bidirectional-support.cpp
index 46f1104..991727e 100644
--- a/text/dali/public-api/text-abstraction/bidirectional-support.cpp
+++ b/text/dali/public-api/text-abstraction/bidirectional-support.cpp
@@ -75,6 +75,11 @@ bool BidirectionalSupport::GetMirroredText( Character* text,
                                                      numberOfCharacters );
 }
 
+bool BidirectionalSupport::GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const
+{
+  return GetImplementation( *this ).GetParagraphDirection( bidiInfoIndex );
+}
+
 } // namespace TextAbstraction
 
 } // namespace Dali
diff --git a/text/dali/public-api/text-abstraction/bidirectional-support.h b/text/dali/public-api/text-abstraction/bidirectional-support.h
index 84a1f81..0a2857f 100644
--- a/text/dali/public-api/text-abstraction/bidirectional-support.h
+++ b/text/dali/public-api/text-abstraction/bidirectional-support.h
@@ -116,6 +116,15 @@ public:
    */
   bool GetMirroredText( Character* text,
                         Length numberOfCharacters );
+
+  /**
+   * @brief Retrieves the paragrpah's direction.
+   *
+   * @param[in] bidiInfoIndex The index to the of the object inside the table storing the bidirectional data for the current paragraph.
+   *
+   * @return @e true if the paragraph is right to left, otherwise @e false.
+   */
+  bool GetParagraphDirection( BidiInfoIndex bidiInfoIndex ) const;
 };
 
 } // namespace TextAbstraction
-- 
2.7.4