#include <dali-toolkit/internal/layouting/layout-group-data-impl.h>
#include <dali-toolkit/public-api/controls/control-impl.h>
#include <dali-toolkit/internal/controls/control/control-data-impl.h>
+#include <dali-toolkit/internal/layouting/size-negotiation-mapper.h>
namespace
{
{
// An object with a unique_ptr to an opaque structure must define it's destructor in the translation unit
// where the opaque structure is defined. It cannot use the default method in the header file.
+ RemoveAll();
}
Toolkit::LayoutGroup::LayoutId LayoutGroup::Add( LayoutItem& child )
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() ; )
void LayoutGroup::OnSetChildProperties( Handle& handle, Property::Index index, Property::Value value )
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnSetChildProperties property(%s)\n", handle.GetPropertyName(index).c_str());
+ DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::OnSetChildProperties property(" << handle.GetPropertyName(index) << ")\n" );
if ( ( ( index >= CHILD_PROPERTY_REGISTRATION_START_INDEX ) &&
( index <= CHILD_PROPERTY_REGISTRATION_MAX_INDEX ) )
}
#endif
+
// Get last stored width and height specifications for the child
auto desiredWidth = childOwner.GetProperty<int>( Toolkit::LayoutItem::ChildProperty::WIDTH_SPECIFICATION );
auto desiredHeight = childOwner.GetProperty<int>( Toolkit::LayoutItem::ChildProperty::HEIGHT_SPECIFICATION );
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::MeasureChildWithMargins desiredWidth(%d)\n", desiredWidth );
MeasureSpec childWidthMeasureSpec = GetChildMeasureSpec( parentWidthMeasureSpec,
- padding.start + padding.end +
+ LayoutLength( padding.start + padding.end ) +
widthUsed, desiredWidth );
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::MeasureChildWithMargins desiredHeight(%d)\n", desiredHeight );
MeasureSpec childHeightMeasureSpec = GetChildMeasureSpec( parentHeightMeasureSpec,
- padding.top + padding.bottom +
+ LayoutLength( padding.top + padding.bottom )+
heightUsed, desiredHeight );
child->Measure( childWidthMeasureSpec, childHeightMeasureSpec );
auto specMode = measureSpec.GetMode();
LayoutLength specSize = measureSpec.GetSize();
- auto size = std::max( LayoutLength(0), specSize - padding ); // reduce available size by the owners padding
+ LayoutLength size = std::max( LayoutLength(0), specSize - padding ); // reduce available size by the owners padding
- MeasureSpec::IntType resultSize = 0;
+ LayoutLength resultSize = 0;
MeasureSpec::Mode resultMode = MeasureSpec::Mode::UNSPECIFIED;
switch( specMode )
}
}
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::GetChildMeasureSpec resultSize(%u)\n", resultSize );
-
+ DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::GetChildMeasureSpec resultSize(" << resultSize << ")\n" );
//noinspection ResourceType
return MeasureSpec( resultSize, resultMode );
// Take ownership of existing children
for( unsigned int childIndex = 0 ; childIndex < control.GetChildCount(); ++childIndex )
{
- ChildAddedToOwner( control.GetChildAt( childIndex ) );
+ ChildAddedToOwnerImpl( control.GetChildAt( childIndex ) );
}
DevelActor::ChildAddedSignal( control ).Connect( mSlotDelegate, &LayoutGroup::ChildAddedToOwner );
DevelActor::ChildRemovedSignal( control ).Connect( mSlotDelegate, &LayoutGroup::ChildRemovedFromOwner );
- DevelActor::ChildOrderChangedSignal( control ).Connect( mSlotDelegate, &LayoutGroup::ChildOrderChanged );
DevelHandle::PropertySetSignal( control ).Connect( mSlotDelegate, &LayoutGroup::OnOwnerPropertySet );
if( control.GetParent() )
}
}
}
+
+ RequestLayout( Dali::Toolkit::LayoutTransitionData::Type::ON_OWNER_SET );
}
}
{
// Remove children
RemoveAll();
+
+ auto control = Toolkit::Control::DownCast( GetOwner() );
+ if( control )
+ {
+ DevelActor::ChildAddedSignal( control ).Disconnect( mSlotDelegate, &LayoutGroup::ChildAddedToOwner );
+ DevelActor::ChildRemovedSignal( control ).Disconnect( mSlotDelegate, &LayoutGroup::ChildRemovedFromOwner );
+ DevelHandle::PropertySetSignal( control ).Disconnect( mSlotDelegate, &LayoutGroup::OnOwnerPropertySet );
+ }
}
void LayoutGroup::RemoveChild( LayoutItem& item )
void LayoutGroup::ChildAddedToOwner( Actor child )
{
+ ChildAddedToOwnerImpl( child );
+ RequestLayout( Dali::Toolkit::LayoutTransitionData::Type::ON_CHILD_ADD, child, Actor() );
+}
+
+void LayoutGroup::ChildAddedToOwnerImpl( Actor child )
+{
LayoutItemPtr childLayout;
Toolkit::Control control = Toolkit::Control::DownCast( child );
#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" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner child control(%s) owner control(%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
// If control behaviour flag set to Layout then set a LayoutGroup.
if( DevelControl::IsLayoutingRequired( control ) )
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner Creating default LayoutGroup for control:%s\n", control?control.GetName().c_str():"Invalid" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner Creating default LayoutGroup for control:%s\n",
+ control?control.GetName().c_str():"Invalid" );
childLayout = LayoutGroup::New( control );
}
else
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner Creating default LayoutItem for control:%s\n", control?control.GetName().c_str():"Invalid" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner Creating default LayoutItem for control:%s\n",
+ control?control.GetName().c_str():"Invalid" );
childLayout = LayoutItem::New( control );
+ childLayout->SetAnimateLayout( IsLayoutAnimated() ); // forces animation inheritance.
}
- childLayout->SetAnimateLayout( IsLayoutAnimated() ); // @todo this essentially forces animation inheritance. Bad?
- DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner control:" << control.GetName().c_str() <<
+ DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner child control:" << control.GetName() <<
" desiredWidth: " << control.GetNaturalSize().width <<
- " desiredHeight:" << control.GetNaturalSize().height
- );
+ " desiredHeight:" << control.GetNaturalSize().height );
childControlDataImpl.SetLayout( *childLayout.Get() );
}
else
{
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::ChildAddedToOwner child(%s) already has a Layout\n", control.GetName().c_str() );
LayoutGroupPtr layoutGroup( dynamic_cast< LayoutGroup* >( childLayout.Get() ) );
if( !layoutGroup )
{
if( childLayout )
{
Remove( *childLayout.Get() );
- }
- }
-}
-
-void LayoutGroup::ChildOrderChanged( Actor child )
-{
- Toolkit::Control childControl = Toolkit::Control::DownCast( child );
- if( childControl )
- {
- 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 );
+ RequestLayout( Dali::Toolkit::LayoutTransitionData::Type::ON_CHILD_REMOVE, child, Actor() );
}
}
}
bool exactWidth ( false );
bool exactHeight ( false );
- // Default Layouting behaviour if not overridden
+ // Layouting behaviour
// EXACT, width and height as provided.
- // MATCH_PARENT, width and hewidthSpecSizeight that of parent
-
+ // MATCH_PARENT, width and height 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.
auto childLayout = GetChildAt( i );
if( childLayout )
{
- auto childOwner = childLayout->GetOwner();
+ auto childControl = Toolkit::Control::DownCast(childLayout->GetOwner());
+
+ // If child control has children check if a ResizePolicy is set on it. A LayoutItem could be a legacy container.
+ // A legacy container would need it's ResizePolicy to be applied as a MeasureSpec.
+
+ // Check below will be true for legacy containers and controls with layout required set.
+ // Other layouts will have their own OnMeasure (a checked requirement) hence not execute LayoutGroup::OnMeasure.
+ // Controls which have set layout required will not be legacy controls hence should not have a ResizePolicy set.
+ // Only need to map the resize policy the first time as the Layouting system will then set it to FIXED.
+ if( childControl.GetChildCount() > 0 && ! mImpl->mResizePolicyMapped )
+ {
+ // First pass, Static mappings that are not dependant on parent
+ SizeNegotiationMapper::SetLayoutParametersUsingResizePolicy( childControl, childLayout, Dimension::WIDTH );
+ SizeNegotiationMapper::SetLayoutParametersUsingResizePolicy( childControl, childLayout, Dimension::HEIGHT );
+ mImpl->mResizePolicyMapped = true;
+ }
+
+ // Second pass, if any mappings were not possible due to parent size dependancies then calculate an exact desired size for child
+ if( true == childLayout->IsResizePolicyRequired() ) // No need to test child count as this flag would only be set if control had children.
+ {
+ // Get last stored width and height specifications for the child
+ LayoutLength desiredWidth = childControl.GetProperty<float>( Toolkit::LayoutItem::ChildProperty::WIDTH_SPECIFICATION );
+ LayoutLength desiredHeight = childControl.GetProperty<float>( Toolkit::LayoutItem::ChildProperty::HEIGHT_SPECIFICATION );
+
+ DALI_LOG_INFO( gLogFilter, Debug::General, "LayoutGroup::MeasureChild Initial desired size pre ResizePolicy(%f,%f)\n", desiredWidth.AsInteger(), desiredHeight.AsInteger() );
+
+ childLayout->SetResizePolicyRequired( false ); // clear flag incase in case of changes before next Measure
+ SizeNegotiationMapper::GetSizeofChildForParentDependentResizePolicy( childControl, widthMeasureSpec, heightMeasureSpec, desiredWidth, desiredHeight );
+
+ // Parent dependant ResizePolicies become exact sizes so are now set on the child before it's measured.
+ childControl.SetProperty( Toolkit::LayoutItem::ChildProperty::WIDTH_SPECIFICATION, desiredWidth.AsInteger() );
+ childControl.SetProperty( Toolkit::LayoutItem::ChildProperty::HEIGHT_SPECIFICATION, desiredHeight.AsInteger() );
+
+ DALI_LOG_INFO( gLogFilter, Debug::General, " LayoutGroup::OnMeasure ResizePolicy Required resulting size(%f,%f)\n", desiredWidth.AsInteger(), desiredHeight.AsInteger() );
+ }
// 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 );
+ LayoutLength childWidth = childLayout->GetMeasuredWidth();
+ LayoutLength childHeight = childLayout->GetMeasuredHeight();
+
+ Extents childMargin = childLayout->GetMargin();
+ DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure child " << childControl.GetName().c_str() << " width[" << childWidth << "] height[" << childHeight << "]\n" );
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 );
+ DALI_LOG_STREAM( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure calculated child width[" << layoutWidth << "] height[" << layoutHeight << "]\n" );
}
else
{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure Not a layout\n" );
+ DALI_LOG_INFO( gLogFilter, Debug::Verbose, "LayoutGroup::OnMeasure Not a layout\n" );
}
}
layoutHeight = heightSpecSize;
}
- DALI_LOG_INFO( gLogFilter, Debug::General, "LayoutGroup::OnMeasure Measured size(%d,%d) for : %s \n", layoutWidth.mValue, layoutHeight.mValue, Actor::DownCast(GetOwner()).GetName().c_str() );
+ DALI_LOG_STREAM( gLogFilter, Debug::General, "LayoutGroup::OnMeasure Measured size(" << layoutWidth << "," << layoutHeight << ") for : " << Actor::DownCast(GetOwner()).GetName() << " \n" );
SetMeasuredDimensions( MeasuredSize( layoutWidth ), MeasuredSize( layoutHeight ) );
}
{
auto childOwner = childLayout->GetOwner();
- auto childWidth = childLayout->GetMeasuredWidth();
- auto childHeight = childLayout->GetMeasuredHeight();
- auto childMargin = childLayout->GetMargin();
+ LayoutLength childWidth = childLayout->GetMeasuredWidth();
+ LayoutLength childHeight = childLayout->GetMeasuredHeight();
+ Extents childMargin = childLayout->GetMargin();
auto control = Toolkit::Control::DownCast( childOwner );
Extents padding = GetPadding();
auto childPosition = control.GetProperty< Vector3 >( Actor::Property::POSITION );
auto anchorPoint = control.GetProperty< Vector3 >( Actor::Property::ANCHOR_POINT );
- DALI_LOG_INFO( gLogFilter, Debug::General, "LayoutGroup::OnLayout child[%s] position(%f,%f) child width[%d] height(%d)\n",
- control.GetName().c_str(),
- childPosition.x, childPosition.y,
- childWidth.mValue, childHeight.mValue
- );
+ DALI_LOG_STREAM( gLogFilter, Debug::General, "LayoutGroup::OnLayout child[" << control.GetName() <<
+ "] position(" << childPosition << ") child width[" << childWidth << "] height[" << childHeight << "]\n" );
// Margin and Padding only supported when child anchor point is TOP_LEFT.
int paddingAndMarginOffsetX = ( AnchorPoint::TOP_LEFT == anchorPoint ) ? ( padding.top + childMargin.top ) : 0;