Framework for Font styles

[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 9e20046..00ae80d 100644 (file)
--- a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
+++ b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
@@ -20,37 +20,34 @@
 
 // EXTERNAL INCLUDES
 #include <dali/public-api/object/type-registry.h>
+#include <dali/public-api/object/type-registry-helper.h>
 #include <dali/integration-api/debug.h>
 
 // INTERNAL INCLUDES
+#include <dali-toolkit/public-api/text/rendering-backend.h>
 #include <dali-toolkit/internal/text/layouts/layout-engine.h>
 #include <dali-toolkit/internal/text/rendering/text-backend.h>
+#include <dali-toolkit/internal/styling/style-manager-impl.h>
 
 using Dali::Toolkit::Text::LayoutEngine;
 using Dali::Toolkit::Text::Backend;
 
-namespace
-{
-
-const unsigned int DEFAULT_RENDERING_BACKEND = 0;
-
-} // namespace
-
 namespace Dali
 {
 
 namespace Toolkit
 {
 
-const Property::Index TextLabel::PROPERTY_RENDERING_BACKEND( Internal::TextLabel::TEXTLABEL_PROPERTY_START_INDEX );
-const Property::Index TextLabel::PROPERTY_TEXT(              Internal::TextLabel::TEXTLABEL_PROPERTY_START_INDEX + 1 );
-const Property::Index TextLabel::PROPERTY_MULTI_LINE(        Internal::TextLabel::TEXTLABEL_PROPERTY_START_INDEX + 2 );
-
 namespace Internal
 {
 
 namespace
 {
+  const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::Text::DEFAULT_RENDERING_BACKEND;
+}
+
+namespace
+{
 
 // Type registration
 BaseHandle Create()
@@ -58,11 +55,17 @@ BaseHandle Create()
   return Toolkit::TextLabel::New();
 }
 
-TypeRegistration mType( typeid(Toolkit::TextLabel), typeid(Toolkit::Control), Create );
+// Setup properties, signals and actions using the type-registry.
+DALI_TYPE_REGISTRATION_BEGIN( Toolkit::TextLabel, Toolkit::Control, Create );
+
+DALI_PROPERTY_REGISTRATION( TextLabel, "rendering-backend", INTEGER, RENDERING_BACKEND )
+DALI_PROPERTY_REGISTRATION( TextLabel, "text",              STRING,  TEXT              )
+DALI_PROPERTY_REGISTRATION( TextLabel, "font-family",       STRING,  FONT_FAMILY       )
+DALI_PROPERTY_REGISTRATION( TextLabel, "font-style",        STRING,  FONT_STYLE        )
+DALI_PROPERTY_REGISTRATION( TextLabel, "point-size",        FLOAT,   POINT_SIZE        )
+DALI_PROPERTY_REGISTRATION( TextLabel, "multi-line",        BOOLEAN, MULTI_LINE        )
 
-PropertyRegistration property1( mType, "rendering-backend", Toolkit::TextLabel::PROPERTY_RENDERING_BACKEND, Property::INTEGER,          &TextLabel::SetProperty, &TextLabel::GetProperty );
-PropertyRegistration property2( mType, "text",              Toolkit::TextLabel::PROPERTY_TEXT,              Property::STRING,           &TextLabel::SetProperty, &TextLabel::GetProperty );
-PropertyRegistration property3( mType, "multi-line",        Toolkit::TextLabel::PROPERTY_MULTI_LINE,        Property::STRING,           &TextLabel::SetProperty, &TextLabel::GetProperty );
+DALI_TYPE_REGISTRATION_END()
 
 } // namespace
 
@@ -90,31 +93,81 @@ void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Pr
     TextLabel& impl( GetImpl( label ) );
     switch( index )
     {
-      case Toolkit::TextLabel::PROPERTY_RENDERING_BACKEND:
+      case Toolkit::TextLabel::Property::RENDERING_BACKEND:
       {
-        unsigned int backend = value.Get< int >();
+        int backend = value.Get< int >();
 
         if( impl.mRenderingBackend != backend )
         {
-          impl.mRenderingBackend = static_cast< unsigned int >( backend );
+          impl.mRenderingBackend = backend;
           impl.mRenderer.Reset();
+          impl.RequestTextRelayout();
         }
         break;
       }
-      case Toolkit::TextLabel::PROPERTY_TEXT:
+      case Toolkit::TextLabel::Property::TEXT:
       {
         if( impl.mController )
         {
           impl.mController->SetText( value.Get< std::string >() );
+          impl.RequestTextRelayout();
+        }
+        break;
+      }
+      case Toolkit::TextLabel::Property::FONT_FAMILY:
+      {
+        if( impl.mController )
+        {
+          std::string fontFamily = value.Get< std::string >();
+
+          if( impl.mController->GetDefaultFontFamily() != fontFamily )
+          {
+            impl.mController->SetDefaultFontFamily( fontFamily );
+            impl.RequestTextRelayout();
+          }
+        }
+        break;
+      }
+      case Toolkit::TextLabel::Property::FONT_STYLE:
+      {
+        if( impl.mController )
+        {
+          std::string fontStyle = value.Get< std::string >();
+
+          if( impl.mController->GetDefaultFontStyle() != fontStyle )
+          {
+            impl.mController->SetDefaultFontStyle( fontStyle );
+            impl.RequestTextRelayout();
+          }
+        }
+        break;
+      }
+      case Toolkit::TextLabel::Property::POINT_SIZE:
+      {
+        if( impl.mController )
+        {
+          float pointSize = value.Get< float >();
+
+          if( impl.mController->GetDefaultPointSize() != pointSize /*TODO - epsilon*/ )
+          {
+            impl.mController->SetDefaultPointSize( pointSize );
+            impl.RequestTextRelayout();
+          }
         }
         break;
       }
-      case Toolkit::TextLabel::PROPERTY_MULTI_LINE:
+      case Toolkit::TextLabel::Property::MULTI_LINE:
       {
         if( impl.mController )
         {
+          LayoutEngine& engine = impl.mController->GetLayoutEngine();
           LayoutEngine::Layout layout = value.Get< bool >() ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
-          impl.mController->GetLayoutEngine().SetLayout( layout );
+
+          if( engine.GetLayout() != layout )
+          {
+            impl.mController->GetLayoutEngine().SetLayout( layout );
+            impl.RequestTextRelayout();
+          }
         }
         break;
       }
@@ -133,23 +186,26 @@ Property::Value TextLabel::GetProperty( BaseObject* object, Property::Index inde
     TextLabel& impl( GetImpl( label ) );
     switch( index )
     {
-      case Toolkit::TextLabel::PROPERTY_RENDERING_BACKEND:
+      case Toolkit::TextLabel::Property::RENDERING_BACKEND:
       {
         value = impl.mRenderingBackend;
         break;
       }
-
-      case Toolkit::TextLabel::PROPERTY_TEXT:
+      case Toolkit::TextLabel::Property::TEXT:
       {
-        DALI_LOG_WARNING( "UTF-8 text representation was discarded\n" );
+        if( impl.mController )
+        {
+          std::string text;
+          impl.mController->GetText( text );
+          value = text;
+        }
         break;
       }
-
-      case Toolkit::TextLabel::PROPERTY_MULTI_LINE:
+      case Toolkit::TextLabel::Property::MULTI_LINE:
       {
         if( impl.mController )
         {
-          value = impl.mController->GetLayoutEngine().GetLayout();
+          value = static_cast<bool>( LayoutEngine::MULTI_LINE_BOX == impl.mController->GetLayoutEngine().GetLayout() );
         }
         break;
       }
@@ -164,6 +220,11 @@ void TextLabel::OnInitialize()
   mController = Text::Controller::New( *this );
 }
 
+void TextLabel::OnStyleChange( Toolkit::StyleManager styleManager, StyleChange change )
+{
+  GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+}
+
 Vector3 TextLabel::GetNaturalSize()
 {
   return mController->GetNaturalSize();
@@ -176,21 +237,30 @@ float TextLabel::GetHeightForWidth( float width )
 
 void TextLabel::OnRelayout( const Vector2& size, ActorSizeContainer& container )
 {
-  if( mController->Relayout( size ) )
+  if( mController->Relayout( size ) ||
+      !mRenderer )
   {
     if( !mRenderer )
     {
       mRenderer = Backend::Get().NewRenderer( mRenderingBackend );
     }
 
+    RenderableActor renderableActor;
     if( mRenderer )
     {
-      Actor renderableActor = mRenderer->Render( mController->GetView() );
+      renderableActor = mRenderer->Render( mController->GetView() );
+    }
+
+    if( renderableActor != mRenderableActor )
+    {
+      UnparentAndReset( mRenderableActor );
 
       if( renderableActor )
       {
         Self().Add( renderableActor );
       }
+
+      mRenderableActor = renderableActor;
     }
   }
 }
@@ -201,7 +271,7 @@ void TextLabel::RequestTextRelayout()
 }
 
 TextLabel::TextLabel()
-: Control( ControlBehaviour( CONTROL_BEHAVIOUR_NONE ) ),
+: Control( ControlBehaviour( REQUIRES_STYLE_CHANGE_SIGNALS ) ),
   mRenderingBackend( DEFAULT_RENDERING_BACKEND )
 {
 }