Add the alignment offset to the glyph lines.

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

diff --git a/dali-toolkit/internal/text/text-view.cpp b/dali-toolkit/internal/text/text-view.cpp
index e7bd262..414fffa 100644 (file)
--- a/dali-toolkit/internal/text/text-view.cpp
+++ b/dali-toolkit/internal/text/text-view.cpp
@@ -20,7 +20,7 @@
 
 // EXTERNAL INCLUDES
 #include <dali/public-api/math/vector2.h>
-#include <dali/public-api/text-abstraction/font-client.h>
+#include <dali/devel-api/text-abstraction/font-client.h>
 
 namespace Dali
 {
@@ -92,6 +92,48 @@ Length View::GetGlyphs( GlyphInfo* glyphs,
                                               glyphIndex,
                                               numberOfLaidOutGlyphs );
 
+      // Get the lines for the given range of glyphs.
+      // The lines contain the alignment offset which needs to be added to the glyph's position.
+      LineIndex firstLine = 0u;
+      Length numberOfLines = 0u;
+      mImpl->mVisualModel->GetNumberOfLines( glyphIndex,
+                                             numberOfLaidOutGlyphs,
+                                             firstLine,
+                                             numberOfLines );
+
+      Vector<LineRun> lines;
+      lines.Resize( numberOfLines );
+      LineRun* lineBuffer = lines.Begin();
+
+      mImpl->mVisualModel->GetLinesOfGlyphRange( lineBuffer,
+                                                 glyphIndex,
+                                                 numberOfLaidOutGlyphs );
+
+      // Get the first line for the given glyph range.
+      LineIndex lineIndex = firstLine;
+      LineRun* line = lineBuffer + lineIndex;
+
+      // Index of the last glyph of the line.
+      GlyphIndex lastGlyphIndexOfLine = line->glyphIndex + line->numberOfGlyphs - 1u;
+
+      // Add the alignment offset to the glyph's position.
+      for( Length index = 0u; index < numberOfLaidOutGlyphs; ++index )
+      {
+        ( *( glyphPositions + index ) ).x += line->alignmentOffset;
+
+        if( lastGlyphIndexOfLine == index )
+        {
+          // Get the next line.
+          ++lineIndex;
+
+          if( lineIndex < numberOfLines )
+          {
+            line = lineBuffer + lineIndex;
+            lastGlyphIndexOfLine = line->glyphIndex + line->numberOfGlyphs - 1u;
+          }
+        }
+      }
+
       if( 1u == numberOfLaidOutGlyphs )
       {
         // not a point try to do ellipsis with only one laid out character.
@@ -116,55 +158,61 @@ Length View::GetGlyphs( GlyphInfo* glyphs,
         {
           const GlyphInfo& glyphToRemove = *( glyphs + index );
 
-          // Need to reshape the glyph as the font may be different in size.
-          const GlyphInfo& ellipsisGlyph = mImpl->mFontClient.GetEllipsisGlyph( mImpl->mFontClient.GetPointSize( glyphToRemove.fontId ) );
-
-          if( !firstPenSet )
+          if( 0u != glyphToRemove.fontId )
           {
-            const Vector2& position = *( glyphPositions + index );
+            // i.e. The font id of the glyph shaped from the '\n' character is zero.
 
-            // Calculates the penY of the current line. It will be used to position the ellipsis glyph.
-            penY = position.y + glyphToRemove.yBearing;
+            // Need to reshape the glyph as the font may be different in size.
+            const GlyphInfo& ellipsisGlyph = mImpl->mFontClient.GetEllipsisGlyph( mImpl->mFontClient.GetPointSize( glyphToRemove.fontId ) );
 
-            // Calculates the first penX which will be used if rtl text is elided.
-            firstPenX = position.x - glyphToRemove.xBearing;
-            if( firstPenX < -ellipsisGlyph.xBearing )
+            if( !firstPenSet )
             {
-              // Avoids to exceed the bounding box when rtl text is elided.
-              firstPenX = -ellipsisGlyph.xBearing;
-            }
+              const Vector2& position = *( glyphPositions + index );
 
-            removedGlypsWidth = -ellipsisGlyph.xBearing;
+              // Calculates the penY of the current line. It will be used to position the ellipsis glyph.
+              penY = position.y + glyphToRemove.yBearing;
 
-            firstPenSet = true;
-          }
+              // Calculates the first penX which will be used if rtl text is elided.
+              firstPenX = position.x - glyphToRemove.xBearing;
+              if( firstPenX < -ellipsisGlyph.xBearing )
+              {
+                // Avoids to exceed the bounding box when rtl text is elided.
+                firstPenX = -ellipsisGlyph.xBearing;
+              }
 
-          removedGlypsWidth += std::min( glyphToRemove.advance, ( glyphToRemove.xBearing + glyphToRemove.width ) );
+              removedGlypsWidth = -ellipsisGlyph.xBearing;
 
-          // Calculate the width of the ellipsis glyph and check if it fits.
-          const float ellipsisGlyphWidth = ellipsisGlyph.width + ellipsisGlyph.xBearing;
-          if( ellipsisGlyphWidth < removedGlypsWidth )
-          {
-            GlyphInfo& glyphInfo = *( glyphs + index );
-            Vector2& position = *( glyphPositions + index );
-            position.x -= glyphInfo.xBearing;
-
-            // Replace the glyph by the ellipsis glyph.
-            glyphInfo = ellipsisGlyph;
+              firstPenSet = true;
+            }
 
-            // Change the 'x' and 'y' position of the ellipsis glyph.
+            removedGlypsWidth += std::min( glyphToRemove.advance, ( glyphToRemove.xBearing + glyphToRemove.width ) );
 
-            if( position.x > firstPenX )
+            // Calculate the width of the ellipsis glyph and check if it fits.
+            const float ellipsisGlyphWidth = ellipsisGlyph.width + ellipsisGlyph.xBearing;
+            if( ellipsisGlyphWidth < removedGlypsWidth )
             {
-              position.x = firstPenX + removedGlypsWidth - ellipsisGlyphWidth;
-            }
+              GlyphInfo& glyphInfo = *( glyphs + index );
+              Vector2& position = *( glyphPositions + index );
+              position.x -= glyphInfo.xBearing;
 
-            position.x += ellipsisGlyph.xBearing;
-            position.y = penY - ellipsisGlyph.yBearing;
+              // Replace the glyph by the ellipsis glyph.
+              glyphInfo = ellipsisGlyph;
 
-            inserted = true;
+              // Change the 'x' and 'y' position of the ellipsis glyph.
+
+              if( position.x > firstPenX )
+              {
+                position.x = firstPenX + removedGlypsWidth - ellipsisGlyphWidth;
+              }
+
+              position.x += ellipsisGlyph.xBearing;
+              position.y = penY - ellipsisGlyph.yBearing;
+
+              inserted = true;
+            }
           }
-          else
+
+          if( !inserted )
           {
             if( index > 0u )
             {