Updated visuals to separate alpha channel from mixColor

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / visuals / color / color-visual.cpp

diff --git a/dali-toolkit/internal/visuals/color/color-visual.cpp b/dali-toolkit/internal/visuals/color/color-visual.cpp
index 17cf68a..0ac80d6 100644 (file)
--- a/dali-toolkit/internal/visuals/color/color-visual.cpp
+++ b/dali-toolkit/internal/visuals/color/color-visual.cpp
@@ -20,9 +20,11 @@
 
 // EXTERNAL INCLUDES
 #include <dali/integration-api/debug.h>
+#include <dali/devel-api/object/handle-devel.h>
 
 //INTERNAL INCLUDES
 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
+#include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
 #include <dali-toolkit/internal/visuals/visual-factory-impl.h>
 #include <dali-toolkit/internal/visuals/visual-factory-cache.h>
 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
@@ -39,35 +41,54 @@ namespace Internal
 
 namespace
 {
-const char * const COLOR_NAME("mixColor");
 
 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
   attribute mediump vec2 aPosition;\n
   uniform mediump mat4 uMvpMatrix;\n
   uniform mediump vec3 uSize;\n
   \n
+
+  //Visual size and offset
+  uniform mediump vec2 offset;\n
+  uniform mediump vec2 size;\n
+  uniform mediump vec4 offsetSizeMode;\n
+  uniform mediump vec2 origin;\n
+  uniform mediump vec2 anchorPoint;\n
+
+  vec4 ComputeVertexPosition()\n
+  {\n
+    vec2 visualSize = mix(uSize.xy*size, size, offsetSizeMode.zw );\n
+    vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy);\n
+    return vec4( (aPosition + anchorPoint)*visualSize + (visualOffset + origin)*uSize.xy, 0.0, 1.0 );\n
+  }\n
+
   void main()\n
   {\n
-    mediump vec4 vertexPosition = vec4(aPosition, 0.0, 1.0);\n
-    vertexPosition.xyz *= uSize;\n
-    gl_Position = uMvpMatrix * vertexPosition;\n
+    gl_Position = uMvpMatrix * ComputeVertexPosition();\n
   }\n
 );
 
 const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
   uniform lowp vec4 uColor;\n
-  uniform lowp vec4 mixColor;\n
+  uniform lowp vec3 mixColor;\n
+  uniform lowp float opacity;\n
   \n
   void main()\n
   {\n
-    gl_FragColor = mixColor*uColor;\n
+    gl_FragColor = vec4(mixColor, opacity)*uColor;\n
   }\n
 );
 }
 
+ColorVisualPtr ColorVisual::New( VisualFactoryCache& factoryCache, const Property::Map& properties )
+{
+  ColorVisualPtr colorVisualPtr( new ColorVisual( factoryCache ) );
+  colorVisualPtr->SetProperties( properties );
+  return colorVisualPtr;
+}
+
 ColorVisual::ColorVisual( VisualFactoryCache& factoryCache )
-: Visual::Base( factoryCache ),
-  mMixColorIndex( Property::INVALID_INDEX )
+: Visual::Base( factoryCache )
 {
 }
 
@@ -75,54 +96,59 @@ ColorVisual::~ColorVisual()
 {
 }
 
-void ColorVisual::DoInitialize( Actor& actor, const Property::Map& propertyMap )
+void ColorVisual::DoSetProperties( const Property::Map& propertyMap )
 {
-  Property::Value* color = propertyMap.Find( Toolkit::ColorVisual::Property::MIX_COLOR, COLOR_NAME );
-  if( !( color && color->Get(mMixColor) ) )
+  // By virtue of DoSetProperties being called last, this will override
+  // anything set by DevelVisual::Property::MIX_COLOR
+  Property::Value* colorValue = propertyMap.Find( Toolkit::ColorVisual::Property::MIX_COLOR, MIX_COLOR );
+  if( colorValue )
   {
-    DALI_LOG_ERROR( "Fail to provide a color to the ColorVisual object\n" );
+    Vector4 color;
+    if( colorValue->Get( color ) )
+    {
+      Property::Type type = colorValue->GetType();
+      if( type == Property::VECTOR4 )
+      {
+        SetMixColor( color );
+      }
+      else if( type == Property::VECTOR3 )
+      {
+        Vector3 color3(color);
+        SetMixColor( color3 );
+      }
+    }
+    else
+    {
+      DALI_LOG_ERROR("ColorVisual: mixColor property has incorrect type\n");
+    }
   }
 }
 
-void ColorVisual::SetSize( const Vector2& size )
-{
-  Visual::Base::SetSize( size );
-
-  // ToDo: renderer responds to the size change
-}
-
-void ColorVisual::SetClipRect( const Rect<int>& clipRect )
-{
-  Visual::Base::SetClipRect( clipRect );
-
-  //ToDo: renderer responds to the clipRect change
-}
-
-void ColorVisual::SetOffset( const Vector2& offset )
-{
-  //ToDo: renderer applies the offset
-}
-
 void ColorVisual::DoSetOnStage( Actor& actor )
 {
   InitializeRenderer();
+
+  actor.AddRenderer( mImpl->mRenderer );
 }
 
 void ColorVisual::DoCreatePropertyMap( Property::Map& map ) const
 {
   map.Clear();
-  map.Insert( Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR );
-  map.Insert( Toolkit::ColorVisual::Property::MIX_COLOR, mMixColor );
+  map.Insert( Toolkit::DevelVisual::Property::TYPE, Toolkit::Visual::COLOR );
+  map.Insert( Toolkit::ColorVisual::Property::MIX_COLOR, mImpl->mMixColor );
 }
 
-void ColorVisual::InitializeRenderer()
+void ColorVisual::OnSetTransform()
 {
-  Geometry geometry = mFactoryCache.GetGeometry( VisualFactoryCache::QUAD_GEOMETRY );
-  if( !geometry )
+  if( mImpl->mRenderer )
   {
-    geometry =  VisualFactoryCache::CreateQuadGeometry();
-    mFactoryCache.SaveGeometry( VisualFactoryCache::QUAD_GEOMETRY, geometry );
+    mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
   }
+}
+
+void ColorVisual::InitializeRenderer()
+{
+  Geometry geometry = mFactoryCache.GetGeometry( VisualFactoryCache::QUAD_GEOMETRY );
 
   Shader shader = mFactoryCache.GetShader( VisualFactoryCache::COLOR_SHADER );
   if( !shader )
@@ -133,25 +159,18 @@ void ColorVisual::InitializeRenderer()
 
   mImpl->mRenderer = Renderer::New( geometry, shader );
 
-  mMixColorIndex = mImpl->mRenderer.RegisterProperty( COLOR_NAME, mMixColor );
-  if( mMixColor.a < 1.f )
+  // ColorVisual has it's own index key for mix color - use this instead
+  // of using the new base index to avoid changing existing applications
+  // String keys will get to this property.
+  mImpl->mMixColorIndex = DevelHandle::RegisterProperty( mImpl->mRenderer, Toolkit::ColorVisual::Property::MIX_COLOR, MIX_COLOR, Vector3(mImpl->mMixColor) );
+
+  if( mImpl->mMixColor.a < 1.f )
   {
     mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_MODE, BlendMode::ON );
   }
-}
-
-void ColorVisual::SetColor(const Vector4& color)
-{
-  mMixColor = color;
 
-  if( mImpl->mRenderer )
-  {
-    (mImpl->mRenderer).SetProperty( mMixColorIndex, color );
-    if( color.a < 1.f )
-    {
-      mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_MODE, BlendMode::ON );
-    }
-  }
+  // Register transform properties
+  mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
 }
 
 } // namespace Internal