Vector-based text rendering

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-label-impl.cpp

diff --git a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
index 1c31449..9d3fd45 100644 (file)
--- a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
+++ b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
@@ -24,8 +24,9 @@
 
 // INTERNAL INCLUDES
 #include <dali-toolkit/public-api/text/rendering-backend.h>
-#include <dali-toolkit/internal/controls/text-controls/text-font-style.h>
+#include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
 #include <dali-toolkit/internal/text/rendering/text-backend.h>
+#include <dali-toolkit/internal/text/text-font-style.h>
 #include <dali-toolkit/internal/text/text-view.h>
 #include <dali-toolkit/internal/styling/style-manager-impl.h>
 
@@ -78,20 +79,21 @@ BaseHandle Create()
 // Setup properties, signals and actions using the type-registry.
 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::TextLabel, Toolkit::Control, Create );
 
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "rendering-backend",    INTEGER, RENDERING_BACKEND    )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "renderingBackend",     INTEGER, RENDERING_BACKEND    )
 DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "text",                 STRING,  TEXT                 )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "font-family",          STRING,  FONT_FAMILY          )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "font-style",           STRING,  FONT_STYLE           )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "point-size",           FLOAT,   POINT_SIZE           )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "multi-line",           BOOLEAN, MULTI_LINE           )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "horizontal-alignment", STRING,  HORIZONTAL_ALIGNMENT )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "vertical-alignment",   STRING,  VERTICAL_ALIGNMENT   )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "text-color",           VECTOR4, TEXT_COLOR           )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "shadow-offset",        VECTOR2, SHADOW_OFFSET        )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "shadow-color",         VECTOR4, SHADOW_COLOR         )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underline-enabled",    BOOLEAN, UNDERLINE_ENABLED    )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underline-color",      VECTOR4, UNDERLINE_COLOR      )
-DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underline-height",     FLOAT,   UNDERLINE_HEIGHT     )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "fontFamily",           STRING,  FONT_FAMILY          )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "fontStyle",            STRING,  FONT_STYLE           )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "pointSize",            FLOAT,   POINT_SIZE           )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "multiLine",            BOOLEAN, MULTI_LINE           )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "horizontalAlignment",  STRING,  HORIZONTAL_ALIGNMENT )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "verticalAlignment",    STRING,  VERTICAL_ALIGNMENT   )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "textColor",            VECTOR4, TEXT_COLOR           )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "shadowOffset",         VECTOR2, SHADOW_OFFSET        )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "shadowColor",          VECTOR4, SHADOW_COLOR         )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underlineEnabled",     BOOLEAN, UNDERLINE_ENABLED    )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underlineColor",       VECTOR4, UNDERLINE_COLOR      )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "underlineHeight",      FLOAT,   UNDERLINE_HEIGHT     )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "enableMarkup",         BOOLEAN, ENABLE_MARKUP        )
 
 DALI_TYPE_REGISTRATION_END()
 
@@ -123,13 +125,25 @@ void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Pr
     {
       case Toolkit::TextLabel::Property::RENDERING_BACKEND:
       {
-        const int backend = value.Get< int >();
+        int backend = value.Get< int >();
 
+#ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
+        if( Text::RENDERING_VECTOR_BASED == backend )
+        {
+          backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
+        }
+#endif
         if( impl.mRenderingBackend != backend )
         {
           impl.mRenderingBackend = backend;
           impl.mRenderer.Reset();
-          impl.RequestTextRelayout();
+
+          if( impl.mController )
+          {
+            // When using the vector-based rendering, the size of the GLyphs are different
+            TextAbstraction::GlyphType glyphType = (Text::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
+            impl.mController->SetGlyphType( glyphType );
+          }
         }
         break;
       }
@@ -148,16 +162,13 @@ void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Pr
           const std::string fontFamily = value.Get< std::string >();
 
           DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str() );
-          if( impl.mController->GetDefaultFontFamily() != fontFamily )
-          {
-            impl.mController->SetDefaultFontFamily( fontFamily, true );
-          }
+          impl.mController->SetDefaultFontFamily( fontFamily );
         }
         break;
       }
       case Toolkit::TextLabel::Property::FONT_STYLE:
       {
-        SetFontStyleProperty( impl.mController, value );
+        SetFontStyleProperty( impl.mController, value, Text::FontStyle::DEFAULT );
         break;
       }
       case Toolkit::TextLabel::Property::POINT_SIZE:
@@ -284,7 +295,7 @@ void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Pr
         if( impl.mController )
         {
           float height = value.Get< float >();
-          if ( impl.mController->GetUnderlineHeight() != height )
+          if( fabsf( impl.mController->GetUnderlineHeight() - height ) > Math::MACHINE_EPSILON_1000 )
           {
             impl.mController->SetUnderlineHeight( height );
             impl.mRenderer.Reset();
@@ -292,6 +303,15 @@ void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
+      case Toolkit::TextLabel::Property::ENABLE_MARKUP:
+      {
+        if( impl.mController )
+        {
+          const bool enableMarkup = value.Get<bool>();
+          impl.mController->SetMarkupProcessorEnabled( enableMarkup );
+        }
+        break;
+      }
     }
   }
 }
@@ -332,7 +352,7 @@ Property::Value TextLabel::GetProperty( BaseObject* object, Property::Index inde
       }
       case Toolkit::TextLabel::Property::FONT_STYLE:
       {
-        GetFontStyleProperty( impl.mController, value );
+        GetFontStyleProperty( impl.mController, value, Text::FontStyle::DEFAULT );
         break;
       }
       case Toolkit::TextLabel::Property::POINT_SIZE:
@@ -427,6 +447,14 @@ Property::Value TextLabel::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
+      case Toolkit::TextLabel::Property::ENABLE_MARKUP:
+      {
+        if( impl.mController )
+        {
+          value = impl.mController->IsMarkupProcessorEnabled();
+        }
+        break;
+      }
     }
   }
 
@@ -439,13 +467,20 @@ void TextLabel::OnInitialize()
 
   mController = Text::Controller::New( *this );
 
+  // When using the vector-based rendering, the size of the GLyphs are different
+  TextAbstraction::GlyphType glyphType = (Text::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
+  mController->SetGlyphType( glyphType );
+
   // Use height-for-width negotiation by default
   self.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
   self.SetResizePolicy( ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT );
 
   // Enable the text ellipsis.
   LayoutEngine& engine = mController->GetLayoutEngine();
+
   engine.SetTextEllipsisEnabled( true );
+  engine.SetCursorWidth( 0u ); // Do not layout space for the cursor.
+
   self.OnStageSignal().Connect( this, &TextLabel::OnStageConnect );
 }
 
@@ -518,7 +553,7 @@ void TextLabel::RenderText()
   Actor renderableActor;
   if( mRenderer )
   {
-    renderableActor = mRenderer->Render( mController->GetView(), self.GetHierarchyDepth() );
+    renderableActor = mRenderer->Render( mController->GetView(), DepthIndex::TEXT );
   }
 
   if( renderableActor != mRenderableActor )
@@ -527,8 +562,9 @@ void TextLabel::RenderText()
 
     if( renderableActor )
     {
+      // TODO: Scroll and alignment needs to be refactored.
       const Vector2& alignmentOffset = mController->GetAlignmentOffset();
-      renderableActor.SetPosition( alignmentOffset.x, alignmentOffset.y );
+      renderableActor.SetPosition( 0.f, alignmentOffset.y );
 
       self.Add( renderableActor );
     }