An layout that allows it's children to be positioned explictly.
Use Actor::Property::POSITION to provide the position.
The children can overlap and exceed their parent's boundary.
Limitations
The absolute layout does not have it's own Padding.
Change-Id: I52d15128acd22250c90d993bb1a33afd738e1cbe
# List of test case sources (Only these get parsed for test cases)
SET(TC_SOURCES
+ utc-Dali-AbsoluteLayout.cpp
utc-Dali-Alignment.cpp
utc-Dali-AnimatedImageVisual.cpp
utc-Dali-BloomView.cpp
--- /dev/null
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <iostream>
+#include <stdlib.h>
+#include <dali-toolkit-test-suite-utils.h>
+
+#include <dali-toolkit/dali-toolkit.h>
+#include <dali-toolkit/devel-api/controls/control-devel.h>
+#include <dali-toolkit/devel-api/layouting/absolute-layout.h>
+
+#include <layout-utils.h>
+
+using namespace Dali;
+using namespace Toolkit;
+
+void utc_dali_toolkit_absolute_layout_startup(void)
+{
+ test_return_value = TET_UNDEF;
+}
+
+void utc_dali_toolkit_absolute_layoutg_cleanup(void)
+{
+ test_return_value = TET_PASS;
+}
+
+
+int UtcDaliLayouting_AbsoluteLayoutDownCast(void)
+{
+ TestApplication application;
+ tet_infoline(" UtcDaliLayouting_AbsoluteLayoutDownCast - Testing Downcast");
+
+ AbsoluteLayout absoluteLayout = AbsoluteLayout::New();
+
+ LayoutGroup layoutGroup( absoluteLayout );
+
+ AbsoluteLayout absoluteLayoutCandidate = AbsoluteLayout::DownCast( layoutGroup );
+ DALI_TEST_CHECK( absoluteLayoutCandidate );
+
+ END_TEST;
+}
+
+int UtcDaliLayouting_AbsoluteLayoutAssignment(void)
+{
+ TestApplication application;
+ tet_infoline(" UtcDaliLayouting_AbsoluteLayoutAssignment - Testing operator=");
+
+ AbsoluteLayout absoluteLayout = AbsoluteLayout::New();
+ AbsoluteLayout absoluteLayout2;
+
+ absoluteLayout2 = absoluteLayout;
+
+ DALI_TEST_CHECK( absoluteLayout2 == absoluteLayout );
+
+ END_TEST;
+}
+
+
+int UtcDaliLayouting_AbsoluteLayout01(void)
+{
+ ToolkitTestApplication application;
+ tet_infoline(" UtcDaliLayouting_AbsoluteLayout01 - Position an item with Actor::Property::POSITION");
+
+ Stage stage = Stage::GetCurrent();
+ auto absoluteLayout = Control::New();
+ auto layout = AbsoluteLayout::New();
+ DevelControl::SetLayout( absoluteLayout, layout );
+ absoluteLayout.SetName( "AsoluteLayout");
+
+ std::vector< Control > controls;
+ controls.push_back( CreateLeafControl( 100, 100 ) );
+ controls.push_back( CreateLeafControl( 100, 100 ) );
+ controls.push_back( CreateLeafControl( 100, 100 ) );
+ controls.push_back( CreateLeafControl( 100, 100 ) );
+
+ // Position one of the controls using the actor property.
+ controls[1].SetProperty(Actor::Property::POSITION, Vector3( 100.0f, 0.0f, 0.0f) );
+
+ for( auto&& iter : controls )
+ {
+ absoluteLayout.Add( iter );
+ }
+ absoluteLayout.SetParentOrigin( ParentOrigin::CENTER );
+ absoluteLayout.SetAnchorPoint( AnchorPoint::CENTER );
+ stage.Add( absoluteLayout );
+
+ // Ensure layouting happens
+ application.SendNotification();
+ application.Render();
+
+ // AbsoluteLayout renders items at the positions given by their Actor::Property::POSITION relative to the top left of the container.
+ // Items can overlap or spill out of their parent container.
+ DALI_TEST_EQUALS( controls[0].GetProperty<Vector3>( Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+
+ // The controls[1] was the only control to have a defiend position
+ DALI_TEST_EQUALS( controls[1].GetProperty<Vector3>( Actor::Property::POSITION ), Vector3( 100.0f, 0.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+ DALI_TEST_EQUALS( controls[2].GetProperty<Vector3>( Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+ DALI_TEST_EQUALS( controls[3].GetProperty<Vector3>( Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+
+ // Items size should not change regardless of parent's size.
+ DALI_TEST_EQUALS( controls[0].GetProperty<Vector3>( Actor::Property::SIZE ), Vector3( 100.0f, 100.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+ DALI_TEST_EQUALS( controls[1].GetProperty<Vector3>( Actor::Property::SIZE ), Vector3( 100.0f, 100.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+ DALI_TEST_EQUALS( controls[2].GetProperty<Vector3>( Actor::Property::SIZE ), Vector3( 100.0f, 100.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+ DALI_TEST_EQUALS( controls[3].GetProperty<Vector3>( Actor::Property::SIZE ), Vector3( 100.0f, 100.0f, 0.0f ), 0.0001f, TEST_LOCATION );
+
+ END_TEST;
+}
\ No newline at end of file
#include <dali-toolkit/devel-api/controls/control-devel.h>
#include <dali-toolkit/devel-api/layouting/hbox-layout.h>
#include <dali-toolkit/devel-api/layouting/vbox-layout.h>
+#include <dali-toolkit/devel-api/layouting/absolute-layout.h>
#include <layout-utils.h>
// LayoutGroup for this to happen automatically.
//
// For this test, add an hbox instead
- auto hbox = Control::New();
- auto hboxLayout = HboxLayout::New();
- DevelControl::SetLayout( hbox, hboxLayout );
- hbox.SetName( "Hbox");
- stage.Add( hbox );
+ auto rootControl = Control::New();
+ auto absoluteLayout = AbsoluteLayout::New();
+ DevelControl::SetLayout( rootControl, absoluteLayout );
+ rootControl.SetName( "AbsoluteLayout");
+ stage.Add( rootControl );
auto vbox = Control::New();
auto vboxLayout = VboxLayout::New();
DevelControl::SetLayout( vbox, vboxLayout );
vbox.SetName( "Vbox");
- hbox.Add( vbox );
+ rootControl.Add( vbox );
vbox.SetProperty( Toolkit::LayoutItem::ChildProperty::WIDTH_SPECIFICATION, ChildLayoutData::WRAP_CONTENT );
vbox.SetProperty( Toolkit::LayoutItem::ChildProperty::HEIGHT_SPECIFICATION, ChildLayoutData::MATCH_PARENT );
application.SendNotification();
application.Render();
- DALI_TEST_EQUALS( hbox.GetProperty<Vector3>(Actor::Property::POSITION), Vector3(0,0,0),TEST_LOCATION);
- DALI_TEST_EQUALS( hbox.GetProperty<Vector3>(Actor::Property::SIZE), Vector3(480,800,0),TEST_LOCATION);
+ DALI_TEST_EQUALS( rootControl.GetProperty<Vector3>(Actor::Property::POSITION), Vector3(0,0,0),TEST_LOCATION);
+ DALI_TEST_EQUALS( rootControl.GetProperty<Vector3>(Actor::Property::SIZE), Vector3(480,800,0),TEST_LOCATION);
// vbox centers elements horizontally, it should wrap it's content horizontally, i.e. it should take the width of the largest element (100)
DALI_TEST_EQUALS( vbox.GetProperty<Vector3>( Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), 0.0001f, TEST_LOCATION );
$(devel_api_src_dir)/image-loader/image-atlas.cpp \
$(devel_api_src_dir)/image-loader/texture-manager.cpp \
$(devel_api_src_dir)/layouting/flex-layout.cpp \
+ $(devel_api_src_dir)/layouting/absolute-layout.cpp \
$(devel_api_src_dir)/layouting/hbox-layout.cpp \
$(devel_api_src_dir)/layouting/vbox-layout.cpp \
$(devel_api_src_dir)/layouting/layout-item.cpp \
$(devel_api_src_dir)/controls/effects-view/effects-view.h
devel_api_layouting_header_files = \
+ $(devel_api_src_dir)/layouting/absolute-layout.h \
$(devel_api_src_dir)/layouting/child-layout-data.h \
$(devel_api_src_dir)/layouting/flex-layout.h \
$(devel_api_src_dir)/layouting/hbox-layout.h \
--- /dev/null
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//CLASS HEADER
+#include <dali-toolkit/devel-api/layouting/absolute-layout.h>
+
+//INTERNAL HEADERS
+#include <dali-toolkit/internal/layouting/absolute-layout-impl.h>
+
+namespace Dali
+{
+namespace Toolkit
+{
+
+AbsoluteLayout::AbsoluteLayout()
+{
+}
+
+AbsoluteLayout AbsoluteLayout::New()
+{
+ Internal::AbsoluteLayoutPtr internal = Internal::AbsoluteLayout::New();
+ return AbsoluteLayout( internal.Get() );
+}
+
+AbsoluteLayout AbsoluteLayout::DownCast( BaseHandle handle )
+{
+ return AbsoluteLayout( dynamic_cast< Dali::Toolkit::Internal::AbsoluteLayout*>( handle.GetObjectPtr() ) );
+}
+
+AbsoluteLayout::AbsoluteLayout( const AbsoluteLayout& other )
+: LayoutGroup( other )
+{
+}
+
+AbsoluteLayout& AbsoluteLayout::operator=( const AbsoluteLayout& other )
+{
+ if( &other != this )
+ {
+ LayoutGroup::operator=( other );
+ }
+ return *this;
+}
+
+AbsoluteLayout::AbsoluteLayout( Dali::Toolkit::Internal::AbsoluteLayout* object )
+: LayoutGroup( object )
+{
+}
+
+} // namespace Toolkit
+} // namespace Dali
--- /dev/null
+#ifndef DALI_TOOLKIT_LAYOUTING_ABSOLUTE_LAYOUT_H
+#define DALI_TOOLKIT_LAYOUTING_ABSOLUTE_LAYOUT_H
+
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dali/public-api/common/dali-common.h>
+#include <dali/public-api/object/base-handle.h>
+#include <dali-toolkit/devel-api/layouting/layout-group.h>
+#include <dali-toolkit/devel-api/layouting/layout-size.h>
+#include <dali-toolkit/public-api/toolkit-property-index-ranges.h>
+
+namespace Dali
+{
+namespace Toolkit
+{
+
+namespace Internal DALI_INTERNAL
+{
+class AbsoluteLayout;
+}
+
+/**
+ * This class implements a absolute layout, allowing explict positioning of
+ * children.
+ * Positions are from the top left of the layout and can be set using the
+ * Actor::Property::POSITION and alike.
+ */
+class DALI_IMPORT_API AbsoluteLayout : public LayoutGroup
+{
+public:
+
+ enum PropertyRange
+ {
+ CHILD_PROPERTY_START_INDEX = ABSOLUTE_LAYOUT_CHILD_PROPERTY_START_INDEX,
+ CHILD_PROPERTY_END_INDEX = ABSOLUTE_LAYOUT_CHILD_PROPERTY_END_INDEX
+ };
+
+ /**
+ * @brief Creates an uninitialized AbsoluteLayout handle.
+ *
+ * Initialize it using AbsoluteLayout::New().
+ * Calling member functions with an uninitialized handle is not allowed.
+ */
+ AbsoluteLayout();
+
+ /**
+ * @brief Creates a AbsoluteLayout object.
+ */
+ static AbsoluteLayout New();
+
+ /**
+ * @brief Downcasts a handle to a AbsoluteLayout handle.
+ *
+ * If handle points to a AbsoluteLayout, the downcast produces a valid handle.
+ * If not, the returned handle is left uninitialized.
+
+ * @param[in] handle to an object
+ * @return Handle to a AbsoluteLayout or an uninitialized handle
+ */
+ static AbsoluteLayout DownCast( BaseHandle handle );
+
+ /**
+ * @brief Copy constructor
+ */
+ AbsoluteLayout( const AbsoluteLayout& other );
+
+ /**
+ * @brief Assigment operator
+ */
+ AbsoluteLayout& operator=( const AbsoluteLayout& other );
+
+ /**
+ * @brief Default destructor.
+ *
+ * This is non-virtual, since derived Handle types must not contain data or virtual methods
+ */
+ ~AbsoluteLayout()=default;
+
+
+public: // Not intended for application developers
+
+ /// @cond internal
+ /**
+ * @brief This constructor is used by AbsoluteLayout::New() methods.
+ *
+ * @param[in] actor A pointer to a newly allocated Dali resource
+ */
+ explicit DALI_INTERNAL AbsoluteLayout( Internal::AbsoluteLayout* body );
+ /// @endcond
+};
+
+} // namespace Toolkit
+} // namespace Dali
+
+#endif // DALI_TOOLKIT_LAYOUTING_ABSOLUTE_LAYOUT_H
mImpl->ClearPrivateFlag( Impl::PRIVATE_FLAG_MEASURED_DIMENSION_SET );
// measure ourselves, this should set the measured dimension flag back
+#if defined(DEBUG_ENABLED)
+ std::ostringstream o;
+ o<<widthMeasureSpec<<","<<heightMeasureSpec;
+ DALI_LOG_INFO( gLayoutFilter, Debug::Concise, "Calling %s OnMeasure( %s )\n", Actor::DownCast(GetOwner()).GetName().c_str(), o.str().c_str());
+#endif
OnMeasure( widthMeasureSpec, heightMeasureSpec );
mImpl->ClearPrivateFlag( Impl::PRIVATE_FLAG_MEASURE_NEEDED_BEFORE_LAYOUT );
*/
enum DevelPropertyRanges
{
- LAYOUT_GROUP_CHILD_PROPERTY_START_INDEX = CHILD_PROPERTY_REGISTRATION_START_INDEX + 1000, ///< Layout Group Property Start Index.
- LAYOUT_GROUP_CHILD_PROPERTY_END_INDEX = LAYOUT_GROUP_CHILD_PROPERTY_START_INDEX + 999, ///< Layout Group Property End Index.
- LINEAR_LAYOUT_CHILD_PROPERTY_START_INDEX = LAYOUT_GROUP_CHILD_PROPERTY_END_INDEX + 1, ///< Linear Layout Property Start Index.
- LINEAR_LAYOUT_CHILD_PROPERTY_END_INDEX = LINEAR_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Linear Layout Property End Index.
- GRID_LAYOUT_CHILD_PROPERTY_START_INDEX = LINEAR_LAYOUT_CHILD_PROPERTY_END_INDEX + 1, ///< Grid Layout Property Start Index.
- GRID_LAYOUT_CHILD_PROPERTY_END_INDEX = GRID_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Grid Layout Property End Index.
- FLEX_LAYOUT_CHILD_PROPERTY_START_INDEX = GRID_LAYOUT_CHILD_PROPERTY_END_INDEX + 1, ///< Flex Layout Property Start Index.
- FLEX_LAYOUT_CHILD_PROPERTY_END_INDEX = FLEX_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Flex Layout Property End Index.
+ LAYOUT_GROUP_CHILD_PROPERTY_START_INDEX = CHILD_PROPERTY_REGISTRATION_START_INDEX + 1000, ///< Layout Group Property Start Index.
+ LAYOUT_GROUP_CHILD_PROPERTY_END_INDEX = LAYOUT_GROUP_CHILD_PROPERTY_START_INDEX + 999, ///< Layout Group Property End Index.
+ LINEAR_LAYOUT_CHILD_PROPERTY_START_INDEX = LAYOUT_GROUP_CHILD_PROPERTY_END_INDEX + 1, ///< Linear Layout Property Start Index.
+ LINEAR_LAYOUT_CHILD_PROPERTY_END_INDEX = LINEAR_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Linear Layout Property End Index.
+ GRID_LAYOUT_CHILD_PROPERTY_START_INDEX = LINEAR_LAYOUT_CHILD_PROPERTY_END_INDEX + 1, ///< Grid Layout Property Start Index.
+ GRID_LAYOUT_CHILD_PROPERTY_END_INDEX = GRID_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Grid Layout Property End Index.
+ FLEX_LAYOUT_CHILD_PROPERTY_START_INDEX = GRID_LAYOUT_CHILD_PROPERTY_END_INDEX + 1, ///< Flex Layout Property Start Index.
+ FLEX_LAYOUT_CHILD_PROPERTY_END_INDEX = FLEX_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Flex Layout Property End Index.
+ ABSOLUTE_LAYOUT_CHILD_PROPERTY_START_INDEX = FLEX_LAYOUT_CHILD_PROPERTY_END_INDEX +1, ///< Absolute Layout Property Start Index.
+ ABSOLUTE_LAYOUT_CHILD_PROPERTY_END_INDEX = ABSOLUTE_LAYOUT_CHILD_PROPERTY_START_INDEX + 999, ///< Absolute Layout Property End Index.
};
} // namespace Toolkit
$(toolkit_src_dir)/builder/tree-node-manipulator.cpp \
$(toolkit_src_dir)/builder/replacement.cpp \
$(toolkit_src_dir)/layouting/flex-layout-impl.cpp \
+ $(toolkit_src_dir)/layouting/absolute-layout-impl.cpp \
$(toolkit_src_dir)/layouting/hbox-layout-impl.cpp \
$(toolkit_src_dir)/layouting/vbox-layout-impl.cpp \
$(toolkit_src_dir)/layouting/layout-item-data-impl.cpp \
--- /dev/null
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//CLASS HEADER
+#include <dali-toolkit/internal/layouting/absolute-layout-impl.h>
+
+//INTERNAL HEADERS
+#include <dali/integration-api/debug.h>
+#include <dali/public-api/common/extents.h>
+#include <dali/public-api/actors/actor.h>
+#include <dali-toolkit/devel-api/layouting/layout-item.h>
+#include <dali-toolkit/public-api/controls/control-impl.h>
+#include <dali-toolkit/internal/controls/control/control-data-impl.h>
+
+namespace
+{
+#if defined(DEBUG_ENABLED)
+static Debug::Filter* gLogFilter = Debug::Filter::New( Debug::Concise, false, "LOG_LAYOUT" );
+#endif
+}
+
+namespace Dali
+{
+namespace Toolkit
+{
+namespace Internal
+{
+
+AbsoluteLayoutPtr AbsoluteLayout::New()
+{
+ AbsoluteLayoutPtr layout( new AbsoluteLayout() );
+ return layout;
+}
+
+AbsoluteLayout::AbsoluteLayout()
+: LayoutGroup()
+{
+}
+
+AbsoluteLayout::~AbsoluteLayout()
+{
+}
+
+void AbsoluteLayout::OnMeasure( MeasureSpec widthMeasureSpec, MeasureSpec heightMeasureSpec )
+{
+#if defined(DEBUG_ENABLED)
+ auto actor = Actor::DownCast(GetOwner());
+
+ std::ostringstream oss;
+ oss << "AbsoluteLayout::OnMeasure ";
+ if( actor )
+ {
+ oss << "Actor Id:" << actor.GetId() << " Name:" << actor.GetName() << " ";
+ }
+ oss << "widthMeasureSpec:" << widthMeasureSpec << " heightMeasureSpec:" << heightMeasureSpec << std::endl;
+ DALI_LOG_INFO( gLogFilter, Debug::Concise, oss.str().c_str() );
+#endif
+
+ LayoutLength totalHeight( 0 );
+ LayoutLength totalWidth( 0 );
+
+ struct
+ {
+ MeasuredSize::State widthState;
+ MeasuredSize::State heightState;
+ } childState = { MeasuredSize::State::MEASURED_SIZE_OK, MeasuredSize::State::MEASURED_SIZE_OK };
+
+ auto minPosition = Vector3( Vector3::ZERO );
+ auto maxPosition = Vector3( Vector3::ZERO );
+
+ // measure children
+ for( unsigned int i=0; i<GetChildCount(); ++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();
+
+ // Determine the width and height needed by the children using their given position and size.
+ // Children could overlap so find the left most and right most child.
+ auto childPosition = childOwner.GetProperty< Vector3 >( Actor::Property::POSITION );
+ minPosition.x = std::min( minPosition.x, childPosition.x );
+ maxPosition.x = std::max( maxPosition.x, childPosition.x + childWidth );
+ // Children could overlap so find the highest and lowest child.
+ minPosition.y = std::min( minPosition.y, childPosition.y );
+ maxPosition.y = std::max( maxPosition.y, childPosition.y + childHeight );
+
+ // Store current width and height needed to contain all children.
+ totalWidth = maxPosition.x - minPosition.x;
+ totalHeight = maxPosition.y - minPosition.y;
+ DALI_LOG_INFO( gLogFilter, Debug::Concise, "AbsoluteLayout::OnMeasure child width(%f) height(%f) \n", (float)totalWidth, (float)totalHeight );
+
+ if( childLayout->GetMeasuredWidthAndState().GetState() == MeasuredSize::State::MEASURED_SIZE_TOO_SMALL )
+ {
+ childState.widthState = MeasuredSize::State::MEASURED_SIZE_TOO_SMALL;
+ }
+ if( childLayout->GetMeasuredHeightAndState().GetState() == MeasuredSize::State::MEASURED_SIZE_TOO_SMALL )
+ {
+ childState.heightState = MeasuredSize::State::MEASURED_SIZE_TOO_SMALL;
+ }
+ }
+ }
+
+ MeasuredSize widthSizeAndState = ResolveSizeAndState( totalWidth, widthMeasureSpec, MeasuredSize::State::MEASURED_SIZE_OK);
+ MeasuredSize heightSizeAndState = ResolveSizeAndState( totalHeight, heightMeasureSpec, MeasuredSize::State::MEASURED_SIZE_OK);
+ totalWidth = widthSizeAndState.GetSize();
+ totalHeight = heightSizeAndState.GetSize();
+
+ // Ensure layout respects it's given minimum size
+ totalWidth = std::max( totalWidth, GetSuggestedMinimumWidth() );
+ totalHeight = std::max( totalHeight, GetSuggestedMinimumHeight() );
+
+ widthSizeAndState.SetState( childState.widthState );
+ heightSizeAndState.SetState( childState.heightState );
+
+ SetMeasuredDimensions( ResolveSizeAndState( totalWidth, widthMeasureSpec, childState.widthState ),
+ ResolveSizeAndState( totalHeight, heightMeasureSpec, childState.heightState ) );
+
+}
+
+void AbsoluteLayout::OnLayout( bool changed, LayoutLength left, LayoutLength top, LayoutLength right, LayoutLength bottom )
+{
+ // Absolute layout positions it's children at their Actor positions.
+ // Children could overlap or spill outside the parent, as is the nature of absolute positions.
+ auto count = GetChildCount();
+
+ for( unsigned int i = 0; i < count; i++)
+ {
+ LayoutItemPtr childLayout = GetChildAt( i );
+ if( childLayout != nullptr )
+ {
+ auto childOwner = childLayout->GetOwner();
+ auto childWidth = childLayout->GetMeasuredWidth();
+ auto childHeight = childLayout->GetMeasuredHeight();
+
+ auto childPosition = childOwner.GetProperty< Vector3 >( Actor::Property::POSITION );
+
+ auto childTop = childPosition.y;
+ auto childLeft = childPosition.x;
+
+ childLayout->Layout( childLeft, childTop, childLeft + childWidth, childTop + childHeight );
+ }
+ }
+}
+
+} // namespace Internal
+} // namespace Toolkit
+} // namespace Dali
--- /dev/null
+#ifndef DALI_TOOLKIT_INTERNAL_ABSOLUTE_LAYOUT_H
+#define DALI_TOOLKIT_INTERNAL_ABSOLUTE_LAYOUT_H
+
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dali/public-api/common/intrusive-ptr.h>
+#include <dali/public-api/object/base-object.h>
+#include <dali-toolkit/devel-api/layouting/layout-group-impl.h>
+#include <dali-toolkit/devel-api/layouting/absolute-layout.h>
+
+namespace Dali
+{
+namespace Toolkit
+{
+namespace Internal
+{
+
+class AbsoluteLayout;
+using AbsoluteLayoutPtr = IntrusivePtr<AbsoluteLayout>;
+
+class AbsoluteLayout final : public LayoutGroup
+{
+public:
+ static AbsoluteLayoutPtr New();
+
+protected:
+
+ /**
+ * Constructor
+ */
+ AbsoluteLayout();
+
+ /**
+ * Destructor
+ */
+ virtual ~AbsoluteLayout();
+
+ /**
+ * @copydoc LayoutItem::OnMeasure
+ */
+ virtual void OnMeasure( MeasureSpec widthMeasureSpec, MeasureSpec heightMeasureSpec ) override;
+
+ /**
+ * @copydoc LayoutItem::OnLayout
+ */
+ virtual void OnLayout( bool changed, LayoutLength l, LayoutLength t, LayoutLength r, LayoutLength b ) override;
+
+private:
+ AbsoluteLayout( const AbsoluteLayout& other ) = delete;
+ AbsoluteLayout& operator=( const AbsoluteLayout& other ) = delete;
+
+ void ForceUniformHeight( int count, MeasureSpec widthMeasureSpec );
+
+};
+
+} // namespace Internal
+
+inline Internal::AbsoluteLayout& GetImplementation( Dali::Toolkit::AbsoluteLayout& handle )
+{
+ DALI_ASSERT_ALWAYS( handle && "AbsoluteLayout handle is empty" );
+ BaseObject& object = handle.GetBaseObject();
+ return static_cast<Internal::AbsoluteLayout&>( object );
+}
+
+inline const Internal::AbsoluteLayout& GetImplementation( const Dali::Toolkit::AbsoluteLayout& handle )
+{
+ DALI_ASSERT_ALWAYS( handle && "AbsoluteLayout handle is empty" );
+ const BaseObject& object = handle.GetBaseObject();
+ return static_cast<const Internal::AbsoluteLayout&>( object );
+}
+
+} // namespace Toolkit
+} // namespace Dali
+
+#endif // DALI_TOOLKIT_INTERNAL_ABSOLUTE_LAYOUT_H