Fix ImageView OnRelayout and add a commnet in MARGIN property

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / image-view / image-view-impl.cpp

diff --git a/dali-toolkit/internal/controls/image-view/image-view-impl.cpp b/dali-toolkit/internal/controls/image-view/image-view-impl.cpp
index e7514b0..835bb4e 100644 (file)
--- a/dali-toolkit/internal/controls/image-view/image-view-impl.cpp
+++ b/dali-toolkit/internal/controls/image-view/image-view-impl.cpp
@@ -102,12 +102,23 @@ void ImageView::SetImage( Image image )
   mPropertyMap.Clear();
 
   Toolkit::Visual::Base visual =  Toolkit::VisualFactory::Get().CreateVisual( image );
-  if (!mVisual)
+  if( visual )
   {
-    mVisual = visual;
+    if( !mVisual )
+    {
+      mVisual = visual;
+    }
+
+    DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual  );
   }
+  else
+  {
+    // Unregister the exsiting visual
+    DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
 
-  DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual  );
+    // Trigger a size negotiation request that may be needed when unregistering a visual.
+    RelayoutRequest();
+  }
 }
 
 void ImageView::SetImage( const Property::Map& map )
@@ -118,13 +129,24 @@ void ImageView::SetImage( const Property::Map& map )
   mImage.Reset();
 
   Toolkit::Visual::Base visual =  Toolkit::VisualFactory::Get().CreateVisual( mPropertyMap );
-  // Don't set mVisual until it is ready and shown. Getters will still use current visual.
-  if (!mVisual)
+  if( visual )
   {
-    mVisual = visual;
+    // Don't set mVisual until it is ready and shown. Getters will still use current visual.
+    if( !mVisual )
+    {
+      mVisual = visual;
+    }
+
+    DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual  );
   }
+  else
+  {
+    // Unregister the exsiting visual
+    DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
 
-  DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual  );
+    // Trigger a size negotiation request that may be needed when unregistering a visual.
+    RelayoutRequest();
+  }
 }
 
 void ImageView::SetImage( const std::string& url, ImageDimensions size )
@@ -136,12 +158,23 @@ void ImageView::SetImage( const std::string& url, ImageDimensions size )
 
   // Don't set mVisual until it is ready and shown. Getters will still use current visual.
   Toolkit::Visual::Base visual =  Toolkit::VisualFactory::Get().CreateVisual( url, size );
-  if (!mVisual)
+  if( visual )
   {
-    mVisual = visual;
+    if( !mVisual )
+    {
+      mVisual = visual;
+    }
+
+    DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
   }
+  else
+  {
+    // Unregister the exsiting visual
+    DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
 
-  DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
+    // Trigger a size negotiation request that may be needed when unregistering a visual.
+    RelayoutRequest();
+  }
 }
 
 Image ImageView::GetImage() const
@@ -180,6 +213,12 @@ Vector3 ImageView::GetNaturalSize()
   {
     Vector2 rendererNaturalSize;
     mVisual.GetNaturalSize( rendererNaturalSize );
+
+    Extents padding;
+    padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
+    rendererNaturalSize.width += ( padding.start + padding.end );
+    rendererNaturalSize.height += ( padding.top + padding.bottom );
     return Vector3( rendererNaturalSize );
   }
 
@@ -189,25 +228,31 @@ Vector3 ImageView::GetNaturalSize()
 
 float ImageView::GetHeightForWidth( float width )
 {
+  Extents padding;
+  padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
   if( mVisual )
   {
-    return mVisual.GetHeightForWidth( width );
+    return mVisual.GetHeightForWidth( width ) + padding.top + padding.bottom;
   }
   else
   {
-    return Control::GetHeightForWidth( width );
+    return Control::GetHeightForWidth( width ) + padding.top + padding.bottom;
   }
 }
 
 float ImageView::GetWidthForHeight( float height )
 {
+  Extents padding;
+  padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
   if( mVisual )
   {
-    return mVisual.GetWidthForHeight( height );
+    return mVisual.GetWidthForHeight( height ) + padding.start + padding.end;
   }
   else
   {
-    return Control::GetWidthForHeight( height );
+    return Control::GetWidthForHeight( height ) + padding.start + padding.end;
   }
 }
 
@@ -217,9 +262,21 @@ void ImageView::OnRelayout( const Vector2& size, RelayoutContainer& container )
 
   if( mVisual )
   {
-    // Pass in an empty map which uses default transform values meaning our visual fills the control
+    Extents padding;
+    padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
+    Property::Map transformMap = Property::Map();
+
+    if( ( padding.start != 0 ) || ( padding.end != 0 ) || ( padding.top != 0 ) || ( padding.bottom != 0 ) )
+    {
+      transformMap.Add( Toolkit::Visual::Transform::Property::OFFSET, Vector2( padding.start, padding.top ) )
+                  .Add( Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) )
+                  .Add( Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN )
+                  .Add( Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN );
+    }
+
     // Should provide a transform that handles aspect ratio according to image size
-    mVisual.SetTransformAndSize( Property::Map(), size );
+    mVisual.SetTransformAndSize( transformMap, size );
   }
 }