X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Fdevel-api%2Flayouting%2Flayout-group-impl.cpp;h=9f54f5672bcb2cdc9413a1ca3f1ede5980f49d37;hp=f3856de5f38dd19d7fe1d49eb861803f5b247bc7;hb=56a9f0862566dfb88e0f0266c211ca9766e9bf49;hpb=59314022f6789147a47a8b098433e211b6185625

diff --git a/dali-toolkit/devel-api/layouting/layout-group-impl.cpp b/dali-toolkit/devel-api/layouting/layout-group-impl.cpp
index f3856de..9f54f56 100644
--- a/dali-toolkit/devel-api/layouting/layout-group-impl.cpp
+++ b/dali-toolkit/devel-api/layouting/layout-group-impl.cpp
@@ -48,6 +48,12 @@ LayoutGroup::LayoutGroup()
 {
 }
 
+LayoutGroupPtr LayoutGroup::New( Handle& owner )
+{
+  LayoutGroupPtr layoutPtr = new LayoutGroup();
+  return layoutPtr;
+}
+
 LayoutGroup::~LayoutGroup()
 {
   // An object with a unique_ptr to an opaque structure must define it's destructor in the translation unit
@@ -122,6 +128,104 @@ void LayoutGroup::Remove( LayoutItem& child )
   RequestLayout();
 }
 
+Toolkit::LayoutGroup::LayoutId LayoutGroup::Insert( LayoutItem& target, LayoutItem& child )
+{
+  LayoutParent* oldParent = child.GetParent();
+  if( oldParent )
+  {
+    LayoutGroupPtr parentGroup( dynamic_cast< LayoutGroup* >( oldParent ) );
+    if( parentGroup )
+    {
+      parentGroup->Remove( child );
+    }
+  }
+
+  // Find target position
+  std::vector< Impl::ChildLayout >::iterator position;
+  for( auto iter = mImpl->mChildren.begin(); iter != mImpl->mChildren.end(); ++iter )
+  {
+    if( iter->child.Get() == &target )
+    {
+      position = iter;
+      break;
+    }
+  }
+
+  Impl::ChildLayout childLayout;
+  childLayout.layoutId = mImpl->mNextLayoutId++;
+  childLayout.child = &child;
+  mImpl->mChildren.insert( position, childLayout );
+
+  child.SetParent( this );
+
+  auto owner = child.GetOwner();
+
+  // Inform deriving classes that this child has been added
+  OnChildAdd( *childLayout.child.Get() );
+
+  // Now listen to future changes to the child properties.
+  DevelHandle::PropertySetSignal(owner).Connect( this, &LayoutGroup::OnSetChildProperties );
+
+  RequestLayout();
+
+  return childLayout.layoutId;
+}
+
+Toolkit::LayoutGroup::LayoutId LayoutGroup::Move( LayoutItem& target, LayoutItem& child )
+{
+  // Remove child from the previous position
+  for( auto iter = mImpl->mChildren.begin() ; iter != mImpl->mChildren.end() ; ++iter )
+  {
+    if( iter->child.Get() == &child )
+    {
+      mImpl->mChildren.erase( iter );
+      break;
+    }
+  }
+
+  // Find target position
+  std::vector< Impl::ChildLayout >::iterator position;
+  for( auto iter = mImpl->mChildren.begin(); iter != mImpl->mChildren.end(); ++iter )
+  {
+    if( iter->child.Get() == &target )
+    {
+      position = iter;
+      break;
+    }
+  }
+
+  Impl::ChildLayout childLayout;
+  childLayout.layoutId = mImpl->mNextLayoutId++;
+  childLayout.child = &child;
+  mImpl->mChildren.insert( position, childLayout );
+
+  RequestLayout();
+
+  return childLayout.layoutId;
+}
+
+Toolkit::LayoutGroup::LayoutId LayoutGroup::MoveBack( LayoutItem& child )
+{
+  // Remove child from the previous position
+  for( auto iter = mImpl->mChildren.begin() ; iter != mImpl->mChildren.end() ; ++iter )
+  {
+    if( iter->child.Get() == &child )
+    {
+      mImpl->mChildren.erase( iter );
+      break;
+    }
+  }
+
+  Impl::ChildLayout childLayout;
+  childLayout.layoutId = mImpl->mNextLayoutId++;
+  childLayout.child = &child;
+  mImpl->mChildren.emplace_back( childLayout );
+
+  RequestLayout();
+
+  return childLayout.layoutId;
+}
+
 void LayoutGroup::RemoveAll()
 {
   for( auto iter = mImpl->mChildren.begin() ; iter != mImpl->mChildren.end() ; )
@@ -235,7 +339,8 @@ void LayoutGroup::MeasureChild( LayoutItemPtr child,
 #if defined( DEBUG_ENABLED )
   if ( control )
   {
-    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::MeasureChild natural size(%f, %f)\n",  control.GetNaturalSize().width, control.GetNaturalSize().height );
+    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::MeasureChild(%s) natural size(%f, %f)\n",
+                   control.GetName().c_str(), control.GetNaturalSize().width, control.GetNaturalSize().height );
   }
 #endif
 
@@ -418,7 +523,30 @@ void LayoutGroup::OnInitialize()
         if( parentLayout )
         {
           Internal::LayoutGroup& parentLayoutImpl = GetImplementation( parentLayout );
-          parentLayoutImpl.Add( *this );
+
+          unsigned int count = parent.GetChildCount();
+          unsigned int index = static_cast< unsigned int >( control.GetProperty< int >( DevelActor::Property::SIBLING_ORDER ) );
+
+          // Find insertion position
+          while( ++index < count )
+          {
+            auto sibling = Toolkit::Control::DownCast( parent.GetChildAt( index ) );
+            if( sibling )
+            {
+              auto siblingLayout = DevelControl::GetLayout( sibling );
+              if( siblingLayout )
+              {
+                Internal::LayoutItem& siblingLayoutImpl = GetImplementation( siblingLayout );
+                parentLayoutImpl.Insert( siblingLayoutImpl, *this );
+                break;
+              }
+            }
+          }
+
+          if( index >= count )
+          {
+            parentLayoutImpl.Add( *this );
+          }
         }
       }
     }
@@ -447,7 +575,10 @@ void LayoutGroup::ChildAddedToOwner( Actor child )
   LayoutItemPtr childLayout;
   Toolkit::Control control = Toolkit::Control::DownCast( child );
 
-  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner control(%s)\n", control?control.GetName().c_str():"Invalid" );
+#if defined(DEBUG_ENABLED)
+  auto parent = Toolkit::Control::DownCast( GetOwner() );
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner control(%s) owner(%s)\n", control?control.GetName().c_str():"Invalid", parent?parent.GetName().c_str():"Invalid" );
+#endif
 
   if( control ) // Can only support adding Controls, not Actors to layout
   {
@@ -458,7 +589,7 @@ void LayoutGroup::ChildAddedToOwner( Actor child )
     if( ! childLayout )
     {
       // If the child doesn't already have a layout, then create a LayoutItem for it.
-      childLayout = LayoutItem::New( control );
+      childLayout = LayoutGroup::New( control );
       childLayout->SetAnimateLayout( IsLayoutAnimated() ); // @todo this essentially forces animation inheritance. Bad?
 #if defined(DEBUG_ENABLED)
       auto desiredSize = control.GetNaturalSize();
@@ -509,13 +640,39 @@ void LayoutGroup::ChildRemovedFromOwner( Actor child )
   }
 }
 
-void LayoutGroup::ChildOrderChanged()
+void LayoutGroup::ChildOrderChanged( Actor child )
 {
-  RequestLayout();
-  // Force Children to be relaid out:
-  for( auto&& child : mImpl->mChildren )
+  Toolkit::Control childControl = Toolkit::Control::DownCast( child );
+  if( childControl )
   {
-    child.child->SetLayoutRequested();
+    Internal::Control& childControlImpl = GetImplementation( childControl );
+    Internal::Control::Impl& childControlDataImpl = Internal::Control::Impl::Get( childControlImpl );
+
+    auto childLayout = childControlDataImpl.GetLayout();
+    if( childLayout )
+    {
+      Toolkit::Control control = Toolkit::Control::DownCast( GetOwner() );
+      unsigned int count = control.GetChildCount();
+      unsigned int index = static_cast< unsigned int >( childControl.GetProperty< int >( DevelActor::Property::SIBLING_ORDER ) );
+
+      // Find insertion position
+      while( ++index < count )
+      {
+        auto sibling = Toolkit::Control::DownCast( control.GetChildAt( index ) );
+        if( sibling )
+        {
+          auto siblingLayout = DevelControl::GetLayout( sibling );
+          if( siblingLayout )
+          {
+            Internal::LayoutItem& siblingLayoutImpl = GetImplementation( siblingLayout );
+            Move( siblingLayoutImpl, *childLayout );
+            return;
+          }
+        }
+      }
+
+      MoveBack( *childLayout );
+    }
   }
 }
 
@@ -541,7 +698,7 @@ void LayoutGroup::OnAnimationStateChanged( bool animateLayout )
   for( auto&& child : mImpl->mChildren )
   {
     LayoutGroupPtr parentGroup( dynamic_cast< LayoutGroup* >( child.child.Get() ) );
-    if( !parentGroup )
+    if( parentGroup && ( 0 == parentGroup->GetChildCount() ) ) // A leaf LayoutGroup will have no children.
     {
       // Change state only in case of leaf children
       child.child->SetAnimateLayout( animateLayout );
@@ -549,6 +706,146 @@ void LayoutGroup::OnAnimationStateChanged( bool animateLayout )
   }
 }
 
+void LayoutGroup::OnMeasure( MeasureSpec widthMeasureSpec, MeasureSpec heightMeasureSpec )
+{
+  DALI_LOG_STREAM( gLogFilter, Debug::Verbose,
+                  "LayoutGroup::OnMeasure Actor Id:" <<  Actor::DownCast(GetOwner()).GetId() <<
+                  " Owner:" <<  Actor::DownCast(GetOwner()).GetName() <<
+                  " MeasureSpecs( width:"<<widthMeasureSpec<<", height:"<<heightMeasureSpec );
+
+  auto childCount = GetChildCount();
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure child count(%u)\n", childCount);
+
+  auto widthMode = widthMeasureSpec.GetMode();
+  auto heightMode = heightMeasureSpec.GetMode();
+  LayoutLength widthSpecSize = widthMeasureSpec.GetSize();
+  LayoutLength heightSpecSize = heightMeasureSpec.GetSize();
+
+  bool exactWidth ( false );
+  bool exactHeight ( false );
+
+  // Default Layouting behaviour if not overridden
+  // EXACT, width and height as provided.
+  // MATCH_PARENT, width and hewidthSpecSizeight that of parent
+
+  // WRAP_CONTENT, take width of widest child and height size of longest child (within given limit)
+  // UNSPECIFIED, take width of widest child and height size of longest child.
+
+  LayoutLength layoutWidth( 0 );
+  LayoutLength layoutHeight( 0 );
+
+  // If LayoutGroup has children then measure children to get max dimensions
+  if ( childCount > 0 )
+  {
+    for( unsigned int i=0; i<childCount; ++i )
+    {
+      auto childLayout = GetChildAt( i );
+      if( childLayout )
+      {
+        auto childOwner = childLayout->GetOwner();
+
+        // Get size of child
+        MeasureChild( childLayout, widthMeasureSpec, heightMeasureSpec );
+        auto childWidth = childLayout->GetMeasuredWidth();
+        auto childHeight = childLayout->GetMeasuredHeight();
+        auto childMargin = childLayout->GetMargin();
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure child width[%d] height(%d)\n", childWidth.mValue, childHeight.mValue );
+
+        layoutWidth = std::max( layoutWidth, childWidth + childMargin.start + childMargin.end );
+        layoutHeight = std::max( layoutHeight, childHeight + childMargin.top + childMargin.bottom );
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure calculated child width[%d] calculated height(%d)\n", layoutWidth.mValue, layoutHeight.mValue );
+      }
+    }
+
+    Extents padding = GetPadding();
+    layoutWidth += padding.start + padding.end;
+    layoutHeight += padding.top + padding.bottom;
+  }
+  else
+  {
+    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure Getting default size as a leaf\n" );
+    // LayoutGroup does not contain any children so must be a leaf
+    layoutWidth = GetDefaultSize( GetSuggestedMinimumWidth(), widthMeasureSpec );
+    layoutHeight = GetDefaultSize( GetSuggestedMinimumHeight(), heightMeasureSpec );
+  }
+
+  // Can't exceed specified width
+  if( widthMode == MeasureSpec::Mode::EXACTLY )
+  {
+    exactWidth = true;
+  }
+  else if ( widthMode == MeasureSpec::Mode::AT_MOST )
+  {
+    layoutWidth = std::min( layoutWidth, widthSpecSize );
+  }
+
+  // Can't exceed specified height
+  if( heightMode == MeasureSpec::Mode::EXACTLY )
+  {
+    exactHeight = true;
+  }
+  else if ( heightMode == MeasureSpec::Mode::AT_MOST )
+  {
+    layoutHeight = std::min( layoutHeight, heightSpecSize );
+  }
+
+  layoutWidth = std::max( layoutWidth, GetSuggestedMinimumWidth() );
+  layoutHeight = std::max( layoutHeight, GetSuggestedMinimumHeight() );
+
+  if( exactWidth )
+  {
+    layoutWidth = widthSpecSize;
+  }
+
+  if( exactHeight )
+  {
+    layoutHeight = heightSpecSize;
+  }
+
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure Measured size(%d,%d) for : %s \n", layoutWidth.mValue, layoutHeight.mValue, Actor::DownCast(GetOwner()).GetName().c_str() );
+  SetMeasuredDimensions( MeasuredSize( layoutWidth ), MeasuredSize( layoutHeight ) );
+}
+
+void LayoutGroup::OnLayout( bool changed, LayoutLength left, LayoutLength top, LayoutLength right, LayoutLength bottom )
+{
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnLayout\n");
+
+  auto count = GetChildCount();
+
+  for( unsigned int childIndex = 0; childIndex < count; childIndex++)
+  {
+    LayoutItemPtr childLayout = GetChildAt( childIndex );
+    if( childLayout != nullptr )
+    {
+
+      auto childOwner = childLayout->GetOwner();
+      auto childWidth = childLayout->GetMeasuredWidth();
+      auto childHeight = childLayout->GetMeasuredHeight();
+      auto childMargin = childLayout->GetMargin();
+      auto control = Toolkit::Control::DownCast( childOwner );
+      Extents padding = GetPadding();
+
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnLayout child width[%d] height(%d)\n", childWidth.mValue, childHeight.mValue );
+
+      auto childPosition = control.GetProperty< Vector3 >( Actor::Property::POSITION );
+      auto anchorPoint = control.GetProperty< Vector3 >( Actor::Property::ANCHOR_POINT );
+
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnLayout child[%s] position(%f,%f)\n", control.GetName().c_str(), childPosition.x, childPosition.y );
+
+      // Margin and Padding only supported when child anchor point is TOP_LEFT.
+      int paddingAndMarginOffsetX = ( AnchorPoint::TOP_LEFT == anchorPoint ) ? ( padding.top + childMargin.top ) : 0;
+      int paddingAndMarginOffsetY = ( AnchorPoint::TOP_LEFT == anchorPoint ) ? ( padding.start + childMargin.start ) : 0;
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnLayout paddingMargin offset(%d,%d)\n", paddingAndMarginOffsetX, paddingAndMarginOffsetY );
+
+      LayoutLength childLeft = childPosition.x + paddingAndMarginOffsetX;
+      LayoutLength childTop = childPosition.y + paddingAndMarginOffsetY;
+
+      childLayout->Layout( childLeft, childTop, childLeft + childWidth, childTop + childHeight );
+    }
+  }
+}
+
+
 } // namespace Internal
 } // namespace Toolkit
 } // namespace Dali