Framework for Font styles
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-field-impl.cpp
index 03dcf44..5f8d498 100644 (file)
 #include <dali-toolkit/internal/controls/text-controls/text-field-impl.h>
 
 // EXTERNAL INCLUDES
+#include <string>
+#include <dali/public-api/adaptor-framework/key.h>
+#include <dali/public-api/common/stage.h>
 #include <dali/public-api/images/resource-image.h>
 #include <dali/public-api/object/type-registry.h>
-#include <dali/public-api/common/stage.h>
+#include <dali/public-api/object/type-registry-helper.h>
 #include <dali/integration-api/debug.h>
 
 // INTERNAL INCLUDES
-#include <dali-toolkit/public-api/text/layouts/layout-engine.h>
-#include <dali-toolkit/public-api/text/rendering/text-backend.h>
+#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 namespace Dali::Toolkit::Text;
 
-namespace
-{
-
-const unsigned int DEFAULT_RENDERING_BACKEND = 0;
-
-} // namespace
-
-
 namespace Dali
 {
 
 namespace Toolkit
 {
 
-const Property::Index TextField::PROPERTY_RENDERING_BACKEND(       Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX );
-const Property::Index TextField::PROPERTY_PLACEHOLDER_TEXT(        Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 1 );
-const Property::Index TextField::PROPERTY_TEXT(                    Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 2 );
-const Property::Index TextField::PROPERTY_CURSOR_IMAGE(            Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 3 );
-const Property::Index TextField::PROPERTY_PRIMARY_CURSOR_COLOR(    Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 4 );
-const Property::Index TextField::PROPERTY_SECONDARY_CURSOR_COLOR(  Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 5 );
-const Property::Index TextField::PROPERTY_ENABLE_CURSOR_BLINK(     Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 6 );
-const Property::Index TextField::PROPERTY_CURSOR_BLINK_INTERVAL(   Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 7 );
-const Property::Index TextField::PROPERTY_CURSOR_BLINK_DURATION(   Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 8 );
-const Property::Index TextField::PROPERTY_GRAB_HANDLE_IMAGE(       Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 9 );
-const Property::Index TextField::PROPERTY_DECORATION_BOUNDING_BOX( Internal::TextField::TEXTFIELD_PROPERTY_START_INDEX + 10 );
-
 namespace Internal
 {
 
 namespace
 {
+  const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::Text::DEFAULT_RENDERING_BACKEND;
+}
+
+namespace
+{
 
 // Type registration
 BaseHandle Create()
@@ -68,19 +58,27 @@ BaseHandle Create()
   return Toolkit::TextField::New();
 }
 
-TypeRegistration mType( typeid(Toolkit::TextField), typeid(Toolkit::Control), Create );
-
-PropertyRegistration property01( mType, "rendering-backend",       Toolkit::TextField::PROPERTY_RENDERING_BACKEND,       Property::INTEGER,          &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property02( mType, "placeholder-text",        Toolkit::TextField::PROPERTY_PLACEHOLDER_TEXT,        Property::STRING,           &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property03( mType, "text",                    Toolkit::TextField::PROPERTY_TEXT,                    Property::STRING,           &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property04( mType, "cursor-image",            Toolkit::TextField::PROPERTY_CURSOR_IMAGE,            Property::STRING,           &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property05( mType, "primary-cursor-color",    Toolkit::TextField::PROPERTY_PRIMARY_CURSOR_COLOR,    Property::VECTOR4,          &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property06( mType, "secondary-cursor-color",  Toolkit::TextField::PROPERTY_SECONDARY_CURSOR_COLOR,  Property::VECTOR4,          &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property07( mType, "enable-cursor-blink",     Toolkit::TextField::PROPERTY_ENABLE_CURSOR_BLINK,     Property::BOOLEAN,          &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property08( mType, "cursor-blink-interval",   Toolkit::TextField::PROPERTY_CURSOR_BLINK_INTERVAL,   Property::FLOAT,            &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property09( mType, "cursor-blink-duration",   Toolkit::TextField::PROPERTY_CURSOR_BLINK_DURATION,   Property::FLOAT,            &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property10( mType, "grab-handle-image",       Toolkit::TextField::PROPERTY_GRAB_HANDLE_IMAGE,       Property::STRING,           &TextField::SetProperty, &TextField::GetProperty );
-PropertyRegistration property11( mType, "decoration bounding-box", Toolkit::TextField::PROPERTY_DECORATION_BOUNDING_BOX, Property::RECTANGLE,        &TextField::SetProperty, &TextField::GetProperty );
+// Setup properties, signals and actions using the type-registry.
+DALI_TYPE_REGISTRATION_BEGIN( Toolkit::TextField, Toolkit::Control, Create );
+
+DALI_PROPERTY_REGISTRATION( TextField, "rendering-backend",       INTEGER,   RENDERING_BACKEND       )
+DALI_PROPERTY_REGISTRATION( TextField, "placeholder-text",        STRING,    PLACEHOLDER_TEXT        )
+DALI_PROPERTY_REGISTRATION( TextField, "text",                    STRING,    TEXT                    )
+DALI_PROPERTY_REGISTRATION( TextField, "font-family",             STRING,    FONT_FAMILY             )
+DALI_PROPERTY_REGISTRATION( TextField, "font-style",              STRING,    FONT_STYLE              )
+DALI_PROPERTY_REGISTRATION( TextField, "point-size",              FLOAT,     POINT_SIZE              )
+DALI_PROPERTY_REGISTRATION( TextField, "exceed-policy",           INTEGER,   EXCEED_POLICY           )
+DALI_PROPERTY_REGISTRATION( TextField, "cursor-image",            STRING,    CURSOR_IMAGE            )
+DALI_PROPERTY_REGISTRATION( TextField, "primary-cursor-color",    VECTOR4,   PRIMARY_CURSOR_COLOR    )
+DALI_PROPERTY_REGISTRATION( TextField, "secondary-cursor-color",  VECTOR4,   SECONDARY_CURSOR_COLOR  )
+DALI_PROPERTY_REGISTRATION( TextField, "enable-cursor-blink",     BOOLEAN,   ENABLE_CURSOR_BLINK     )
+DALI_PROPERTY_REGISTRATION( TextField, "cursor-blink-interval",   FLOAT,     CURSOR_BLINK_INTERVAL   )
+DALI_PROPERTY_REGISTRATION( TextField, "cursor-blink-duration",   FLOAT,     CURSOR_BLINK_DURATION   )
+DALI_PROPERTY_REGISTRATION( TextField, "grab-handle-image",       STRING,    GRAB_HANDLE_IMAGE       )
+DALI_PROPERTY_REGISTRATION( TextField, "decoration bounding-box", RECTANGLE, DECORATION_BOUNDING_BOX )
+
+DALI_TYPE_REGISTRATION_END()
+
 } // namespace
 
 Toolkit::TextField TextField::New()
@@ -108,9 +106,9 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
 
     switch( index )
     {
-      case Toolkit::TextField::PROPERTY_RENDERING_BACKEND:
+      case Toolkit::TextField::Property::RENDERING_BACKEND:
       {
-        unsigned int backend = value.Get< unsigned int >();
+        int backend = value.Get< int >();
 
         if( impl.mRenderingBackend != backend )
         {
@@ -119,7 +117,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_PLACEHOLDER_TEXT:
+      case Toolkit::TextField::Property::PLACEHOLDER_TEXT:
       {
         if( impl.mController )
         {
@@ -127,7 +125,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_TEXT:
+      case Toolkit::TextField::Property::TEXT:
       {
         if( impl.mController )
         {
@@ -135,7 +133,54 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_IMAGE:
+      case Toolkit::TextField::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::TextField::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::TextField::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::TextField::Property::EXCEED_POLICY:
+      {
+        impl.mExceedPolicy = value.Get< int >();
+        break;
+      }
+      case Toolkit::TextField::Property::CURSOR_IMAGE:
       {
         ResourceImage image = ResourceImage::New( value.Get< std::string >() );
 
@@ -145,7 +190,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_PRIMARY_CURSOR_COLOR:
+      case Toolkit::TextField::Property::PRIMARY_CURSOR_COLOR:
       {
         if( impl.mDecorator )
         {
@@ -153,7 +198,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_SECONDARY_CURSOR_COLOR:
+      case Toolkit::TextField::Property::SECONDARY_CURSOR_COLOR:
       {
         if( impl.mDecorator )
         {
@@ -161,7 +206,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_ENABLE_CURSOR_BLINK:
+      case Toolkit::TextField::Property::ENABLE_CURSOR_BLINK:
       {
         if( impl.mController )
         {
@@ -169,7 +214,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_BLINK_INTERVAL:
+      case Toolkit::TextField::Property::CURSOR_BLINK_INTERVAL:
       {
         if( impl.mDecorator )
         {
@@ -177,7 +222,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_BLINK_DURATION:
+      case Toolkit::TextField::Property::CURSOR_BLINK_DURATION:
       {
         if( impl.mDecorator )
         {
@@ -185,7 +230,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_GRAB_HANDLE_IMAGE:
+      case Toolkit::TextField::Property::GRAB_HANDLE_IMAGE:
       {
         ResourceImage image = ResourceImage::New( value.Get< std::string >() );
 
@@ -195,7 +240,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_DECORATION_BOUNDING_BOX:
+      case Toolkit::TextField::Property::DECORATION_BOUNDING_BOX:
       {
         if( impl.mDecorator )
         {
@@ -219,22 +264,37 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
 
     switch( index )
     {
-      case Toolkit::TextField::PROPERTY_RENDERING_BACKEND:
+      case Toolkit::TextField::Property::RENDERING_BACKEND:
       {
         value = impl.mRenderingBackend;
         break;
       }
-      case Toolkit::TextField::PROPERTY_PLACEHOLDER_TEXT:
+      case Toolkit::TextField::Property::PLACEHOLDER_TEXT:
       {
-        DALI_LOG_WARNING( "UTF-8 text representation was discarded\n" );
+        if( impl.mController )
+        {
+          std::string text;
+          impl.mController->GetPlaceholderText( text );
+          value = text;
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::TEXT:
+      {
+        if( impl.mController )
+        {
+          std::string text;
+          impl.mController->GetText( text );
+          value = text;
+        }
         break;
       }
-      case Toolkit::TextField::PROPERTY_TEXT:
+      case Toolkit::TextField::Property::EXCEED_POLICY:
       {
-        DALI_LOG_WARNING( "UTF-8 text representation was discarded\n" );
+        value = impl.mExceedPolicy;
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_IMAGE:
+      case Toolkit::TextField::Property::CURSOR_IMAGE:
       {
         if( impl.mDecorator )
         {
@@ -246,7 +306,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_PRIMARY_CURSOR_COLOR:
+      case Toolkit::TextField::Property::PRIMARY_CURSOR_COLOR:
       {
         if( impl.mDecorator )
         {
@@ -254,7 +314,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_SECONDARY_CURSOR_COLOR:
+      case Toolkit::TextField::Property::SECONDARY_CURSOR_COLOR:
       {
         if( impl.mDecorator )
         {
@@ -262,12 +322,12 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_ENABLE_CURSOR_BLINK:
+      case Toolkit::TextField::Property::ENABLE_CURSOR_BLINK:
       {
         //value = impl.mController->GetEnableCursorBlink(); TODO
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_BLINK_INTERVAL:
+      case Toolkit::TextField::Property::CURSOR_BLINK_INTERVAL:
       {
         if( impl.mDecorator )
         {
@@ -275,7 +335,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_CURSOR_BLINK_DURATION:
+      case Toolkit::TextField::Property::CURSOR_BLINK_DURATION:
       {
         if( impl.mDecorator )
         {
@@ -283,7 +343,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_GRAB_HANDLE_IMAGE:
+      case Toolkit::TextField::Property::GRAB_HANDLE_IMAGE:
       {
         if( impl.mDecorator )
         {
@@ -295,7 +355,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
-      case Toolkit::TextField::PROPERTY_DECORATION_BOUNDING_BOX:
+      case Toolkit::TextField::Property::DECORATION_BOUNDING_BOX:
       {
         if( impl.mDecorator )
         {
@@ -320,13 +380,8 @@ void TextField::OnInitialize()
   mController->EnableTextInput( mDecorator );
 
   // Forward input events to controller
-  EnableGestureDetection( Gesture::Tap );
-
-  // TODO - Fix TapGestureDetector to support single and double tap
-  mDoubleTapDetector = TapGestureDetector::New();
-  mDoubleTapDetector.SetTapsRequired( 2 );
-  mDoubleTapDetector.DetectedSignal().Connect( this, &TextField::OnDoubleTap );
-  mDoubleTapDetector.Attach(Self());
+  EnableGestureDetection(Gesture::Tap);
+  GetTapGestureDetector().SetMaximumTapsRequired( 2 );
 
   // Set BoundingBox to stage size if not already set.
   if ( mDecorator->GetBoundingBox().IsEmpty() )
@@ -336,9 +391,25 @@ void TextField::OnInitialize()
   }
 }
 
+void TextField::OnStyleChange( Toolkit::StyleManager styleManager, StyleChange change )
+{
+  GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+}
+
+Vector3 TextField::GetNaturalSize()
+{
+  return mController->GetNaturalSize();
+}
+
+float TextField::GetHeightForWidth( float width )
+{
+  return mController->GetHeightForWidth( width );
+}
+
 void TextField::OnRelayout( const Vector2& size, ActorSizeContainer& container )
 {
-  if( mController->Relayout( size ) )
+  if( mController->Relayout( size ) ||
+      !mRenderer )
   {
     if( mDecorator )
     {
@@ -350,26 +421,50 @@ void TextField::OnRelayout( const Vector2& size, ActorSizeContainer& container )
       mRenderer = Backend::Get().NewRenderer( mRenderingBackend );
     }
 
+    RenderableActor renderableActor;
     if( mRenderer )
     {
-      Actor renderableActor = mRenderer->Render( mController->GetView() );
+      renderableActor = mRenderer->Render( mController->GetView() );
+    }
+
+    EnableClipping( (Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy), size );
 
-      if( renderableActor )
+    if( renderableActor != mRenderableActor )
+    {
+      UnparentAndReset( mRenderableActor );
+      mRenderableActor = renderableActor;
+    }
+
+    if( mRenderableActor )
+    {
+      // Make sure the actor is parented correctly with/without clipping
+      if( mClipper )
+      {
+        mClipper->GetRootActor().Add( mRenderableActor );
+      }
+      else
       {
-        Self().Add( renderableActor );
+        Self().Add( mRenderableActor );
       }
     }
   }
 }
 
-void TextField::OnTap( const TapGesture& tap )
+void TextField::OnTap( const TapGesture& gesture )
 {
-  mController->TapEvent( tap.numberOfTaps, tap.localPoint.x, tap.localPoint.y );
+  SetKeyInputFocus();
+
+  mController->TapEvent( gesture.numberOfTaps, gesture.localPoint.x, gesture.localPoint.y );
 }
 
-void TextField::OnDoubleTap( Actor actor, const TapGesture& tap )
+bool TextField::OnKeyEvent( const KeyEvent& event )
 {
-  mController->TapEvent( tap.numberOfTaps, tap.localPoint.x, tap.localPoint.y );
+  if( Dali::DALI_KEY_ESCAPE == event.keyCode )
+  {
+    ClearKeyInputFocus();
+  }
+
+  return mController->KeyEvent( event );
 }
 
 void TextField::RequestTextRelayout()
@@ -377,14 +472,44 @@ void TextField::RequestTextRelayout()
   RelayoutRequest();
 }
 
+void TextField::EnableClipping( bool clipping, const Vector2& size )
+{
+  if( clipping )
+  {
+    // Not worth to created clip actor if width or height is equal to zero.
+    if( size.width > Math::MACHINE_EPSILON_1000 && size.height > Math::MACHINE_EPSILON_1000 )
+    {
+      if( !mClipper )
+      {
+        Actor self = Self();
+
+        mClipper = Clipper::New( size );
+        self.Add( mClipper->GetRootActor() );
+        self.Add( mClipper->GetImageActor() );
+      }
+      else if ( mClipper )
+      {
+        mClipper->Refresh( size );
+      }
+    }
+  }
+  else
+  {
+    // Note - this will automatically remove the root & image actors
+    mClipper.Reset();
+  }
+}
+
 TextField::TextField()
-: Control( ControlBehaviour( CONTROL_BEHAVIOUR_NONE ) ),
-  mRenderingBackend( DEFAULT_RENDERING_BACKEND )
+: Control( ControlBehaviour( REQUIRES_STYLE_CHANGE_SIGNALS ) ),
+  mRenderingBackend( DEFAULT_RENDERING_BACKEND ),
+  mExceedPolicy( Dali::Toolkit::TextField::EXCEED_POLICY_CLIP )
 {
 }
 
 TextField::~TextField()
 {
+  mClipper.Reset();
 }
 
 } // namespace Internal