-//
-// Copyright (c) 2014 Samsung Electronics Co., Ltd.
-//
-// Licensed under the Flora License, Version 1.0 (the License);
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://floralicense.org/license/
-//
-// 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.
-//
+/*
+ * Copyright (c) 2014 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/controls/scrollable/item-view/item-view-impl.h>
// EXTERNAL INCLUDES
+#include <cstring> // for strcmp
#include <algorithm>
+#include <dali/public-api/animation/constraint.h>
+#include <dali/public-api/animation/constraints.h>
+#include <dali/devel-api/common/set-wrapper.h>
+#include <dali/public-api/common/stage.h>
+#include <dali/public-api/events/wheel-event.h>
+#include <dali/public-api/events/touch-event.h>
+#include <dali/public-api/object/type-registry.h>
+#include <dali/devel-api/object/type-registry-helper.h>
// INTERNAL INCLUDES
-#include <dali/public-api/events/mouse-wheel-event.h>
+#include <dali-toolkit/public-api/controls/scroll-bar/scroll-bar.h>
#include <dali-toolkit/public-api/controls/scrollable/item-view/item-factory.h>
-#include <dali-toolkit/internal/controls/scrollable/scroll-connector-impl.h>
+#include <dali-toolkit/internal/controls/scrollable/bouncing-effect-actor.h>
-using namespace std;
+using std::string;
+using std::set;
using namespace Dali;
-namespace // unnamed namespace
+namespace // Unnamed namespace
{
//Type registration
-TypeRegistration mType( typeid(Toolkit::ItemView), typeid(Toolkit::Scrollable), NULL );
+
+DALI_TYPE_REGISTRATION_BEGIN( Toolkit::ItemView, Toolkit::Scrollable, NULL)
+
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "layout-position", FLOAT, LAYOUT_POSITION)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "scroll-speed", FLOAT, SCROLL_SPEED)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "overshoot", FLOAT, OVERSHOOT)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "scroll-direction", VECTOR2, SCROLL_DIRECTION)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "layout-orientation", INTEGER, LAYOUT_ORIENTATION)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, ItemView, "scroll-content-size", FLOAT, SCROLL_CONTENT_SIZE)
+
+DALI_SIGNAL_REGISTRATION( Toolkit, ItemView, "layout-activated", LAYOUT_ACTIVATED_SIGNAL )
+
+DALI_TYPE_REGISTRATION_END()
const float DEFAULT_MINIMUM_SWIPE_SPEED = 1.0f;
const float DEFAULT_MINIMUM_SWIPE_DISTANCE = 3.0f;
-const float DEFAULT_MOUSE_WHEEL_SCROLL_DISTANCE_STEP_PROPORTION = 0.1f;
+const float DEFAULT_WHEEL_SCROLL_DISTANCE_STEP_PROPORTION = 0.1f;
-const int DEFAULT_REFRESH_INTERVAL_MILLISECONDS = 50; // 20 updates per second
-const int MOUSE_WHEEL_EVENT_FINISHED_TIME_OUT = 500; // 0.5 second
+const float DEFAULT_MINIMUM_SWIPE_DURATION = 0.45f;
+const float DEFAULT_MAXIMUM_SWIPE_DURATION = 2.6f;
+
+const float DEFAULT_REFRESH_INTERVAL_LAYOUT_POSITIONS = 20.0f; // 1 updates per 20 items
+const int WHEEL_EVENT_FINISHED_TIME_OUT = 500; // 0.5 second
const float DEFAULT_ANCHORING_DURATION = 1.0f; // 1 second
-const float DEFAULT_COLOR_VISIBILITY_REMOVE_TIME = 0.5f; // 0.5 second
const float MILLISECONDS_PER_SECONDS = 1000.0f;
-const char* OVERSHOOT_OVERLAY_RIPPLE_IMAGE_PATH = DALI_IMAGE_DIR "overshoot_ripple.png";
-const Rect<int> OVERSHOOT_BOUNCE_IMAGE_1_PIXEL_AREA( 0, 0, 720, 58 );
+const float OVERSHOOT_BOUNCE_ACTOR_RESIZE_THRESHOLD = 180.0f;
const Vector4 OVERSHOOT_OVERLAY_NINE_PATCH_BORDER(0.0f, 0.0f, 1.0f, 12.0f);
-const float MAXIMUM_OVERSHOOT_HEIGHT = 36.0f; // 36 pixels
-const float DEFAULT_OVERSHOOT_ANIMATION_DURATION = 0.5f; // 0.5 second
const float DEFAULT_KEYBOARD_FOCUS_SCROLL_DURATION = 0.2f;
-const string LAYOUT_POSITION_PROPERTY_NAME( "item-view-layout-position" );
-const string POSITION_PROPERTY_NAME( "item-view-position" );
-const string MINIMUM_LAYOUT_POSITION_PROPERTY_NAME( "item-view-minimum-layout-position" );
-const string SCROLL_SPEED_PROPERTY_NAME( "item-view-scroll-speed" );
-const string SCROLL_DIRECTION_PROPERTY_NAME( "item-view-scroll-direction" );
-const string OVERSHOOT_PROPERTY_NAME( "item-view-overshoot" );
-
-// Functors which wrap constraint functions with stored item IDs
-
-struct WrappedVector3Constraint
-{
- WrappedVector3Constraint(Toolkit::ItemLayout::Vector3Function wrapMe, unsigned int itemId)
- : mWrapMe(wrapMe),
- mItemId(itemId)
- {
- }
-
- Vector3 operator()(const Vector3& current, const PropertyInput& layoutPosition, const PropertyInput& scrollSpeed, const PropertyInput& layoutSize)
- {
- float offsetLayoutPosition = layoutPosition.GetFloat() + static_cast<float>(mItemId);
-
- return mWrapMe(current, offsetLayoutPosition, scrollSpeed.GetFloat(), layoutSize.GetVector3());
- }
-
- Toolkit::ItemLayout::Vector3Function mWrapMe;
- unsigned int mItemId;
-};
-
-struct WrappedQuaternionConstraint
-{
- WrappedQuaternionConstraint(Toolkit::ItemLayout::QuaternionFunction wrapMe, unsigned int itemId)
- : mWrapMe(wrapMe),
- mItemId(itemId)
- {
- }
-
- Quaternion operator()(const Quaternion& current, const PropertyInput& layoutPosition, const PropertyInput& scrollSpeed, const PropertyInput& layoutSize)
- {
- float offsetLayoutPosition = layoutPosition.GetFloat() + static_cast<float>(mItemId);
-
- return mWrapMe(current, offsetLayoutPosition, scrollSpeed.GetFloat(), layoutSize.GetVector3());
- }
-
- Toolkit::ItemLayout::QuaternionFunction mWrapMe;
- unsigned int mItemId;
-};
-
-struct WrappedVector4Constraint
-{
- WrappedVector4Constraint(Toolkit::ItemLayout::Vector4Function wrapMe, unsigned int itemId)
- : mWrapMe(wrapMe),
- mItemId(itemId)
- {
- }
-
- Vector4 operator()(const Vector4& current, const PropertyInput& layoutPosition, const PropertyInput& scrollSpeed, const PropertyInput& layoutSize)
- {
- float offsetLayoutPosition = layoutPosition.GetFloat() + static_cast<float>(mItemId);
-
- return mWrapMe(current, offsetLayoutPosition, scrollSpeed.GetFloat(), layoutSize.GetVector3());
- }
-
- Toolkit::ItemLayout::Vector4Function mWrapMe;
- unsigned int mItemId;
-};
-
-struct WrappedBoolConstraint
-{
- WrappedBoolConstraint(Toolkit::ItemLayout::BoolFunction wrapMe, unsigned int itemId)
- : mWrapMe(wrapMe),
- mItemId(itemId)
- {
- }
-
- bool operator()(const bool& current, const PropertyInput& layoutPosition, const PropertyInput& scrollSpeed, const PropertyInput& layoutSize)
- {
- float offsetLayoutPosition = layoutPosition.GetFloat() + static_cast<float>(mItemId);
-
- return mWrapMe(current, offsetLayoutPosition, scrollSpeed.GetFloat(), layoutSize.GetVector3());
- }
-
- Toolkit::ItemLayout::BoolFunction mWrapMe;
- unsigned int mItemId;
-};
-
/**
* Local helper to convert pan distance (in actor coordinates) to the layout-specific scrolling direction
*/
}
// Overshoot overlay constraints
-
struct OvershootOverlaySizeConstraint
{
- float operator()(const float& current,
- const PropertyInput& parentScrollDirectionProperty,
- const PropertyInput& parentOvershootProperty,
- const PropertyInput& parentSizeProperty)
+ OvershootOverlaySizeConstraint( float height )
+ : mOvershootHeight( height )
{
- const Vector3 parentScrollDirection = parentScrollDirectionProperty.GetVector3();
- const Vector3 parentSize = parentSizeProperty.GetVector3();
- const Toolkit::ControlOrientation::Type& parentOrientation = static_cast<Toolkit::ControlOrientation::Type>(parentScrollDirection.z);
+ }
- float overlayWidth;
+ void operator()( Vector3& current, const PropertyInputContainer& inputs )
+ {
+ const Vector2& parentScrollDirection = inputs[0]->GetVector2();
+ const Toolkit::ControlOrientation::Type& layoutOrientation = static_cast<Toolkit::ControlOrientation::Type>(inputs[1]->GetInteger());
+ const Vector3& parentSize = inputs[2]->GetVector3();
- if(Toolkit::IsVertical(parentOrientation))
+ if(Toolkit::IsVertical(layoutOrientation))
{
- overlayWidth = fabsf(parentScrollDirection.y) > Math::MACHINE_EPSILON_1 ? parentSize.x : parentSize.y;
+ current.width = fabsf(parentScrollDirection.y) > Math::MACHINE_EPSILON_1 ? parentSize.x : parentSize.y;
}
else
{
- overlayWidth = fabsf(parentScrollDirection.x) > Math::MACHINE_EPSILON_1 ? parentSize.y : parentSize.x;
+ current.width = fabsf(parentScrollDirection.x) > Math::MACHINE_EPSILON_1 ? parentSize.y : parentSize.x;
}
- return overlayWidth;
+ current.height = ( current.width > OVERSHOOT_BOUNCE_ACTOR_RESIZE_THRESHOLD ) ? mOvershootHeight : mOvershootHeight*0.5f;
}
+
+ float mOvershootHeight;
};
-struct OvershootOverlayRotationConstraint
+void OvershootOverlayRotationConstraint( Quaternion& current, const PropertyInputContainer& inputs )
{
- Quaternion operator()(const Quaternion& current,
- const PropertyInput& parentScrollDirectionProperty,
- const PropertyInput& parentOvershootProperty)
- {
- const Vector3 parentScrollDirection = parentScrollDirectionProperty.GetVector3();
- const float parentOvershoot = parentOvershootProperty.GetFloat();
- const Toolkit::ControlOrientation::Type& parentOrientation = static_cast<Toolkit::ControlOrientation::Type>(parentScrollDirection.z);
-
- Quaternion rotation;
+ const Vector2& parentScrollDirection = inputs[0]->GetVector2();
+ const Toolkit::ControlOrientation::Type& layoutOrientation = static_cast<Toolkit::ControlOrientation::Type>(inputs[1]->GetInteger());
+ const float parentOvershoot = inputs[2]->GetFloat();
- if(Toolkit::IsVertical(parentOrientation))
+ float multiplier = 0;
+ if(Toolkit::IsVertical(layoutOrientation))
+ {
+ if(fabsf(parentScrollDirection.y) <= Math::MACHINE_EPSILON_1)
{
- if(fabsf(parentScrollDirection.y) <= Math::MACHINE_EPSILON_1)
+ if( (layoutOrientation == Toolkit::ControlOrientation::Up && parentOvershoot < Math::MACHINE_EPSILON_0)
+ || (layoutOrientation == Toolkit::ControlOrientation::Down && parentOvershoot > Math::MACHINE_EPSILON_0) )
{
- if( (parentOrientation == Toolkit::ControlOrientation::Up && parentOvershoot < Math::MACHINE_EPSILON_0)
- || (parentOrientation == Toolkit::ControlOrientation::Down && parentOvershoot > Math::MACHINE_EPSILON_0) )
- {
- rotation = Quaternion(0.5f * Math::PI, Vector3::ZAXIS);
- }
- else
- {
- rotation = Quaternion(1.5f * Math::PI, Vector3::ZAXIS);
- }
- }
- else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.y > Math::MACHINE_EPSILON_0)
- || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.y < Math::MACHINE_EPSILON_0) )
- {
- rotation = Quaternion(0.0f, Vector3::ZAXIS);
+ multiplier = 0.5f;
}
else
{
- rotation = Quaternion(Math::PI, Vector3::ZAXIS);
+ multiplier = 1.5f;
}
}
+ else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.y > Math::MACHINE_EPSILON_0)
+ || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.y < Math::MACHINE_EPSILON_0) )
+ {
+ multiplier = 0.0f;
+ }
else
{
- if(fabsf(parentScrollDirection.x) <= Math::MACHINE_EPSILON_1)
- {
- if( (parentOrientation == Toolkit::ControlOrientation::Left && parentOvershoot > Math::MACHINE_EPSILON_0)
- ||(parentOrientation == Toolkit::ControlOrientation::Right && parentOvershoot < Math::MACHINE_EPSILON_0) )
- {
- rotation = Quaternion(Math::PI, Vector3::ZAXIS);
- }
- else
- {
- rotation = Quaternion(0.0f, Vector3::ZAXIS);
- }
- }
- else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.x > Math::MACHINE_EPSILON_0)
- || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.x < Math::MACHINE_EPSILON_0) )
+ multiplier = 1.0f;
+ }
+ }
+ else
+ {
+ if(fabsf(parentScrollDirection.x) <= Math::MACHINE_EPSILON_1)
+ {
+ if( (layoutOrientation == Toolkit::ControlOrientation::Left && parentOvershoot > Math::MACHINE_EPSILON_0)
+ ||(layoutOrientation == Toolkit::ControlOrientation::Right && parentOvershoot < Math::MACHINE_EPSILON_0) )
{
- rotation = Quaternion(1.5f * Math::PI, Vector3::ZAXIS);
+ multiplier = 1.0f;
}
else
{
- rotation = Quaternion(0.5f * Math::PI, Vector3::ZAXIS);
+ multiplier = 0.0f;
}
}
-
- return rotation;
+ else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.x > Math::MACHINE_EPSILON_0)
+ || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.x < Math::MACHINE_EPSILON_0) )
+ {
+ multiplier = 1.5f;
+ }
+ else
+ {
+ multiplier = 0.5f;
+ }
}
-};
-struct OvershootOverlayPositionConstraint
+ current = Quaternion( Radian( multiplier * Math::PI ), Vector3::ZAXIS );
+}
+
+void OvershootOverlayPositionConstraint( Vector3& current, const PropertyInputContainer& inputs )
{
- Vector3 operator()(const Vector3& current,
- const PropertyInput& parentSizeProperty,
- const PropertyInput& parentScrollDirectionProperty,
- const PropertyInput& parentOvershootProperty)
- {
- const Vector3 parentScrollDirection = parentScrollDirectionProperty.GetVector3();
- const float parentOvershoot = parentOvershootProperty.GetFloat();
- const Vector3 parentSize = parentSizeProperty.GetVector3();
- const Toolkit::ControlOrientation::Type& parentOrientation = static_cast<Toolkit::ControlOrientation::Type>(parentScrollDirection.z);
+ const Vector3& parentSize = inputs[0]->GetVector3();
+ const Vector2& parentScrollDirection = inputs[1]->GetVector2();
+ const Toolkit::ControlOrientation::Type& layoutOrientation = static_cast<Toolkit::ControlOrientation::Type>(inputs[2]->GetInteger());
+ const float parentOvershoot = inputs[3]->GetFloat();
- Vector3 relativeOffset;
+ Vector3 relativeOffset;
- if(Toolkit::IsVertical(parentOrientation))
+ if(Toolkit::IsVertical(layoutOrientation))
+ {
+ if(fabsf(parentScrollDirection.y) <= Math::MACHINE_EPSILON_1)
{
- if(fabsf(parentScrollDirection.y) <= Math::MACHINE_EPSILON_1)
- {
- if( (parentOrientation == Toolkit::ControlOrientation::Up && parentOvershoot < Math::MACHINE_EPSILON_0)
- || (parentOrientation == Toolkit::ControlOrientation::Down && parentOvershoot > Math::MACHINE_EPSILON_0) )
- {
- relativeOffset = Vector3(1.0f, 0.0f, 0.0f);
- }
- else
- {
- relativeOffset =Vector3(0.0f, 1.0f, 0.0f);
- }
- }
- else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.y > Math::MACHINE_EPSILON_0)
- || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.y < Math::MACHINE_EPSILON_0) )
+ if( (layoutOrientation == Toolkit::ControlOrientation::Up && parentOvershoot < Math::MACHINE_EPSILON_0)
+ || (layoutOrientation == Toolkit::ControlOrientation::Down && parentOvershoot > Math::MACHINE_EPSILON_0) )
{
- relativeOffset = Vector3(0.0f, 0.0f, 0.0f);
+ relativeOffset = Vector3(1.0f, 0.0f, 0.0f);
}
else
{
- relativeOffset = Vector3(1.0f, 1.0f, 0.0f);
+ relativeOffset =Vector3(0.0f, 1.0f, 0.0f);
}
}
+ else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.y > Math::MACHINE_EPSILON_0)
+ || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.y < Math::MACHINE_EPSILON_0) )
+ {
+ relativeOffset = Vector3(0.0f, 0.0f, 0.0f);
+ }
else
{
- if(fabsf(parentScrollDirection.x) <= Math::MACHINE_EPSILON_1)
- {
- if( (parentOrientation == Toolkit::ControlOrientation::Left && parentOvershoot < Math::MACHINE_EPSILON_0)
- || (parentOrientation == Toolkit::ControlOrientation::Right && parentOvershoot > Math::MACHINE_EPSILON_0) )
- {
- relativeOffset = Vector3(0.0f, 0.0f, 0.0f);
- }
- else
- {
- relativeOffset = Vector3(1.0f, 1.0f, 0.0f);
- }
- }
- else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.x > Math::MACHINE_EPSILON_0)
- || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.x < Math::MACHINE_EPSILON_0) )
+ relativeOffset = Vector3(1.0f, 1.0f, 0.0f);
+ }
+ }
+ else
+ {
+ if(fabsf(parentScrollDirection.x) <= Math::MACHINE_EPSILON_1)
+ {
+ if( (layoutOrientation == Toolkit::ControlOrientation::Left && parentOvershoot < Math::MACHINE_EPSILON_0)
+ || (layoutOrientation == Toolkit::ControlOrientation::Right && parentOvershoot > Math::MACHINE_EPSILON_0) )
{
- relativeOffset = Vector3(0.0f, 1.0f, 0.0f);
+ relativeOffset = Vector3(0.0f, 0.0f, 0.0f);
}
else
{
- relativeOffset = Vector3(1.0f, 0.0f, 0.0f);
+ relativeOffset = Vector3(1.0f, 1.0f, 0.0f);
}
}
-
- return relativeOffset * parentSize;
-
+ else if( (parentOvershoot > Math::MACHINE_EPSILON_0 && parentScrollDirection.x > Math::MACHINE_EPSILON_0)
+ || (parentOvershoot < Math::MACHINE_EPSILON_0 && parentScrollDirection.x < Math::MACHINE_EPSILON_0) )
+ {
+ relativeOffset = Vector3(0.0f, 1.0f, 0.0f);
+ }
+ else
+ {
+ relativeOffset = Vector3(1.0f, 0.0f, 0.0f);
+ }
}
-};
-
-struct OvershootOverlayVisibilityConstraint
-{
- bool operator()(const bool& current,
- const PropertyInput& parentLayoutScrollableProperty)
- {
- const bool parentLayoutScrollable = parentLayoutScrollableProperty.GetBoolean();
- return parentLayoutScrollable;
- }
-};
+ current = relativeOffset * parentSize;
+}
-/**
- * Relative position Constraint
- * Generates the relative position value of the item view based on the layout position,
- * and it's relation to the layout domain. This is a value from 0.0f to 1.0f in each axis.
- */
-Vector3 RelativePositionConstraint(const Vector3& current,
- const PropertyInput& scrollPositionProperty,
- const PropertyInput& scrollMinProperty,
- const PropertyInput& scrollMaxProperty,
- const PropertyInput& layoutSizeProperty)
+void OvershootOverlayVisibilityConstraint( bool& current, const PropertyInputContainer& inputs )
{
- const Vector3& position = Vector3(0.0f, scrollPositionProperty.GetFloat(), 0.0f);
- const Vector3& min = scrollMinProperty.GetVector3();
- const Vector3& max = scrollMaxProperty.GetVector3();
-
- Vector3 relativePosition;
- Vector3 domainSize = max - min;
-
- relativePosition.x = fabsf(domainSize.x) > Math::MACHINE_EPSILON_1 ? ((min.x - position.x) / fabsf(domainSize.x)) : 0.0f;
- relativePosition.y = fabsf(domainSize.y) > Math::MACHINE_EPSILON_1 ? ((min.y - position.y) / fabsf(domainSize.y)) : 0.0f;
-
- return relativePosition;
+ current = inputs[0]->GetBoolean();
}
} // unnamed namespace
namespace Internal
{
-///////////////////////////////////////////////////////////////////////////////////////////////////
-// ItemPool
-///////////////////////////////////////////////////////////////////////////////////////////////////
-
-void ItemPool::AddItems(bool scrollingTowardsLast, ItemRange range, const Vector3& targetSize)
-{
- // Add new actors to the ItemPool.
- // The order of addition depends on the scroll direction.
- if (scrollingTowardsLast)
- {
- for (unsigned int itemId = range.begin; itemId < range.end; ++itemId)
- {
- AddItem(itemId, targetSize);
- }
- }
- else
- {
- for (unsigned int itemId = range.end; itemId > range.begin; --itemId)
- {
- AddItem(itemId-1, targetSize);
- }
- }
-}
-
-void ItemPool::RemoveItems(ItemRange range)
-{
- // Remove unwanted actors from the ItemView & ItemPool
- for (IDKeyIter iter = mIdKeyContainer.begin(); iter != mIdKeyContainer.end(); )
- {
- unsigned int current = iter->first;
-
- if (!range.Within(current))
- {
- mItemView.ActorRemovedFromItemPool(iter->second, iter->first);
-
- mActorKeyContainer.erase(iter->second);
- mIdKeyContainer.erase(iter++); // erase invalidates the current iter; the post-increment is important here
- }
- else
- {
- ++iter;
- }
- }
-}
-
-void ItemPool::AddItem(unsigned int itemId, const Vector3& targetSize)
+namespace // unnamed namespace
{
- if (mIdKeyContainer.find(itemId) == mIdKeyContainer.end())
- {
- Actor actor = mItemView.CreateActor(itemId);
- if (actor)
- {
- mIdKeyContainer.insert(IDKeyPair(itemId, actor));
- mActorKeyContainer.insert(ActorKeyPair(actor, itemId));
-
- mItemView.ActorAddedToItemPool(actor, itemId, targetSize);
- }
- }
-}
-
-bool ItemPool::RemoveItem(unsigned int itemId)
+bool FindById( const ItemContainer& items, ItemId id )
{
- bool found = false;
-
- IDKeyIter iter = mIdKeyContainer.find(itemId);
- if (iter != mIdKeyContainer.end())
+ for( ConstItemIter iter = items.begin(); items.end() != iter; ++iter )
{
- mItemView.ActorRemovedFromItemPool(iter->second, iter->first);
-
- mActorKeyContainer.erase(iter->second);
- for (ActorKeyIter iterActorKey = mActorKeyContainer.begin(); iterActorKey != mActorKeyContainer.end(); ++iterActorKey)
+ if( iter->first == id )
{
- if(iterActorKey->second > itemId)
- {
- iterActorKey->second--;
- }
- }
-
- for (IDKeyIter iterIDKey = iter; iterIDKey != mIdKeyContainer.end(); ++iterIDKey)
- {
- if(iterIDKey->first < mIdKeyContainer.rbegin()->first)
- {
- iterIDKey->second = mIdKeyContainer[iterIDKey->first + 1];
- }
- else
- {
- mIdKeyContainer.erase(iterIDKey);
- break;
- }
+ return true;
}
-
- found = true;
}
- return found;
+ return false;
}
-///////////////////////////////////////////////////////////////////////////////////////////////////
-// ItemView
-///////////////////////////////////////////////////////////////////////////////////////////////////
+} // unnamed namespace
Dali::Toolkit::ItemView ItemView::New(ItemFactory& factory)
{
}
ItemView::ItemView(ItemFactory& factory)
-: Scrollable(),
+: Scrollable( ControlBehaviour( DISABLE_SIZE_NEGOTIATION | REQUIRES_WHEEL_EVENTS | REQUIRES_KEYBOARD_NAVIGATION_SUPPORT ) ),
mItemFactory(factory),
- mItemPool(*this),
mActiveLayout(NULL),
mAnimatingOvershootOn(false),
mAnimateOvershootOff(false),
- mAnchoringEnabled(true),
+ mAnchoringEnabled(false),
mAnchoringDuration(DEFAULT_ANCHORING_DURATION),
- mRefreshIntervalMilliseconds(DEFAULT_REFRESH_INTERVAL_MILLISECONDS),
+ mRefreshIntervalLayoutPositions(0.0f),
mRefreshOrderHint(true/*Refresh item 0 first*/),
mMinimumSwipeSpeed(DEFAULT_MINIMUM_SWIPE_SPEED),
mMinimumSwipeDistance(DEFAULT_MINIMUM_SWIPE_DISTANCE),
+ mWheelScrollDistanceStep(0.0f),
mScrollDistance(0.0f),
mScrollSpeed(0.0f),
mTotalPanDisplacement(Vector2::ZERO),
mScrollOvershoot(0.0f),
mIsFlicking(false),
- mGestureState(Gesture::Clear)
+ mGestureState(Gesture::Clear),
+ mAddingItems(false),
+ mRefreshEnabled(true),
+ mItemsParentOrigin( ParentOrigin::CENTER),
+ mItemsAnchorPoint( AnchorPoint::CENTER)
{
- SetRequiresMouseWheelEvents(true);
- SetKeyboardNavigationSupport(true);
}
void ItemView::OnInitialize()
{
- SetSizePolicy( Toolkit::Control::Fixed, Toolkit::Control::Fixed );
-
- RegisterCommonProperties();
-
Actor self = Self();
- mOvershootEffect = OvershootRippleEffect::New();
- Image overshootImage = Image::New( OVERSHOOT_OVERLAY_RIPPLE_IMAGE_PATH );
- mOvershootOverlay = ImageActor::New( overshootImage );
- mOvershootOverlay.SetParentOrigin(ParentOrigin::TOP_LEFT);
- mOvershootOverlay.SetAnchorPoint(AnchorPoint::TOP_LEFT);
- mOvershootOverlay.SetDrawMode(DrawMode::OVERLAY);
- mOvershootOverlay.SetShaderEffect(mOvershootEffect);
- mOvershootOverlay.SetPixelArea(OVERSHOOT_BOUNCE_IMAGE_1_PIXEL_AREA);
- self.Add(mOvershootOverlay);
-
- mScrollConnector = Dali::Toolkit::ScrollConnector::New();
- mScrollPositionObject = mScrollConnector.GetScrollPositionObject();
-
- mPropertyMinimumLayoutPosition = self.RegisterProperty(MINIMUM_LAYOUT_POSITION_PROPERTY_NAME, 0.0f);
- mPropertyPosition = self.RegisterProperty(POSITION_PROPERTY_NAME, 0.0f);
- mPropertyScrollSpeed = self.RegisterProperty(SCROLL_SPEED_PROPERTY_NAME, 0.0f);
- mPropertyOvershoot = self.RegisterProperty(OVERSHOOT_PROPERTY_NAME, 0.0f);
-
- ApplyOvershootOverlayConstraints();
-
- Constraint constraint = Constraint::New<Vector3>(mPropertyRelativePosition,
- LocalSource(mPropertyPosition),
- LocalSource(mPropertyPositionMin),
- LocalSource(mPropertyPositionMax),
- LocalSource(Actor::SIZE),
- RelativePositionConstraint);
- self.ApplyConstraint(constraint);
-
Vector2 stageSize = Stage::GetCurrent().GetSize();
- mMouseWheelScrollDistanceStep = stageSize.y * DEFAULT_MOUSE_WHEEL_SCROLL_DISTANCE_STEP_PROPORTION;
+ mWheelScrollDistanceStep = stageSize.y * DEFAULT_WHEEL_SCROLL_DISTANCE_STEP_PROPORTION;
EnableGestureDetection(Gesture::Type(Gesture::Pan));
- mMouseWheelEventFinishedTimer = Timer::New( MOUSE_WHEEL_EVENT_FINISHED_TIME_OUT );
- mMouseWheelEventFinishedTimer.TickSignal().Connect( this, &ItemView::OnMouseWheelEventFinished );
-}
+ mWheelEventFinishedTimer = Timer::New( WHEEL_EVENT_FINISHED_TIME_OUT );
+ mWheelEventFinishedTimer.TickSignal().Connect( this, &ItemView::OnWheelEventFinished );
-ItemView::~ItemView()
-{
+ SetRefreshInterval(DEFAULT_REFRESH_INTERVAL_LAYOUT_POSITIONS);
}
-Dali::Toolkit::ScrollConnector ItemView::GetScrollConnector() const
+ItemView::~ItemView()
{
- return mScrollConnector;
}
unsigned int ItemView::GetLayoutCount() const
float ItemView::GetCurrentLayoutPosition(unsigned int itemId) const
{
- return mScrollPositionObject.GetProperty<float>( ScrollConnector::SCROLL_POSITION ) + static_cast<float>( itemId );
+ return Self().GetProperty<float>( Toolkit::ItemView::Property::LAYOUT_POSITION ) + static_cast<float>( itemId );
}
void ItemView::ActivateLayout(unsigned int layoutIndex, const Vector3& targetSize, float durationSeconds)
{
DALI_ASSERT_ALWAYS(layoutIndex < mLayouts.size());
+ mRefreshEnabled = false;
+
Actor self = Self();
// The ItemView size should match the active layout size
self.SetSize(targetSize);
+ mActiveLayoutTargetSize = targetSize;
// Switch to the new layout
- ItemLayout* previousLayout = mActiveLayout;
mActiveLayout = mLayouts[layoutIndex].Get();
- // Calculate which items are within either layout
- ItemRange oldRange = previousLayout ? GetItemRange(*previousLayout, targetSize, false/*don't reserve extra*/) : ItemRange(0u, 0u);
- ItemRange newRange = GetItemRange(*mActiveLayout, targetSize, false/*don't reserve extra*/);
-
// Move the items to the new layout positions...
- bool resizeAnimationNeeded(false);
-
- const ItemPool::IDKeyContainer& itemPool = mItemPool.GetIDKeyContainer();
- for (ItemPool::IDKeyConstIter iter = itemPool.begin(); iter != itemPool.end(); ++iter)
+ for (ConstItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
{
unsigned int itemId = iter->first;
Actor actor = iter->second;
- // Immediately relayout items that aren't within either layout
- bool immediate = !oldRange.Within(itemId) &&
- !newRange.Within(itemId);
-
// Remove constraints from previous layout
actor.RemoveConstraints();
Vector3 size;
- if(mActiveLayout->GetItemSize(itemId, targetSize, size))
- {
- if (!immediate &&
- durationSeconds > 0.0f)
- {
- // Use a size animation
- if (!resizeAnimationNeeded)
- {
- resizeAnimationNeeded = true;
- RemoveAnimation(mResizeAnimation);
- mResizeAnimation = Animation::New(durationSeconds);
- }
-
- // The layout provides its own resize animation
- mActiveLayout->GetResizeAnimation(mResizeAnimation, actor, size, durationSeconds);
- }
- else
- {
- // resize immediately
- actor.SetSize(size);
- }
- }
-
- ApplyConstraints(actor, *mActiveLayout, itemId, immediate ? 0.0f : durationSeconds);
- }
+ mActiveLayout->GetItemSize( itemId, targetSize, size );
+ actor.SetSize( size.GetVectorXY() );
- if (resizeAnimationNeeded)
- {
- mResizeAnimation.Play();
+ mActiveLayout->ApplyConstraints(actor, itemId, targetSize, Self() );
}
// Refresh the new layout
- ItemRange range = GetItemRange(*mActiveLayout, targetSize, true/*reserve extra*/);
- AddItems(*mActiveLayout, targetSize, range);
+ ItemRange range = GetItemRange(*mActiveLayout, targetSize, GetCurrentLayoutPosition(0), false/* don't reserve extra*/);
+ AddActorsWithinRange( range, targetSize );
// Scroll to an appropriate layout position
float current = GetCurrentLayoutPosition(0);
float minimum = ClampFirstItemPosition(current, targetSize, *mActiveLayout);
- self.SetProperty(mPropertyPosition, GetScrollPosition(current, targetSize));
if (current < minimum)
{
if (scrollAnimationNeeded)
{
RemoveAnimation(mScrollAnimation);
- mScrollAnimation = Animation::New(mAnchoringDuration);
- mScrollAnimation.AnimateTo( Property( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ), firstItemScrollPosition, AlphaFunctions::EaseOut );
- mScrollAnimation.AnimateTo( Property(self, mPropertyPosition), GetScrollPosition(firstItemScrollPosition, targetSize), AlphaFunctions::EaseOut );
+ mScrollAnimation = Animation::New(durationSeconds);
+ mScrollAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::LAYOUT_POSITION), firstItemScrollPosition, AlphaFunction::EASE_OUT );
+ mScrollAnimation.FinishedSignal().Connect(this, &ItemView::OnLayoutActivationScrollFinished);
mScrollAnimation.Play();
}
+ else
+ {
+ // Emit the layout activated signal
+ mLayoutActivatedSignal.Emit();
+ }
- self.SetProperty(mPropertyMinimumLayoutPosition, mActiveLayout->GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), targetSize));
AnimateScrollOvershoot(0.0f);
mScrollOvershoot = 0.0f;
Radian scrollDirection(mActiveLayout->GetScrollDirection());
- float orientation = static_cast<float>(mActiveLayout->GetOrientation());
- self.SetProperty(mPropertyScrollDirection, Vector3(sinf(scrollDirection), cosf(scrollDirection), orientation));
-
- self.SetProperty(mPropertyScrollSpeed, mScrollSpeed);
+ self.SetProperty(Toolkit::ItemView::Property::SCROLL_DIRECTION, Vector2(sinf(scrollDirection), cosf(scrollDirection)));
+ self.SetProperty(Toolkit::ItemView::Property::LAYOUT_ORIENTATION, static_cast<int>(mActiveLayout->GetOrientation()));
+ self.SetProperty(Toolkit::ItemView::Property::SCROLL_SPEED, mScrollSpeed);
CalculateDomainSize(targetSize);
}
{
if (mActiveLayout)
{
- const ItemPool::IDKeyContainer& itemPool = mItemPool.GetIDKeyContainer();
- for (ItemPool::IDKeyConstIter iter = itemPool.begin(); iter != itemPool.end(); ++iter)
+ for (ConstItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
{
Actor actor = iter->second;
actor.RemoveConstraints();
mActiveLayout = NULL;
}
+}
- CancelRefreshTimer();
+void ItemView::OnRefreshNotification(PropertyNotification& source)
+{
+ // Cancel scroll animation to prevent any fighting of setting the scroll position property by scroll bar during fast scroll.
+ if(!mRefreshEnabled && mScrollAnimation)
+ {
+ RemoveAnimation(mScrollAnimation);
+ }
+
+ // Only cache extra items when it is not a fast scroll
+ DoRefresh(GetCurrentLayoutPosition(0), mRefreshEnabled || mScrollAnimation);
}
-bool ItemView::OnRefreshTick()
+void ItemView::Refresh()
{
- // Short-circuit if there is no active layout
- if (!mActiveLayout)
+ for (ItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter )
{
- return false;
+ ReleaseActor( iter->first, iter->second );
+ }
+ mItemPool.clear();
+
+ DoRefresh(GetCurrentLayoutPosition(0), true);
+}
+
+void ItemView::DoRefresh(float currentLayoutPosition, bool cacheExtra)
+{
+ if (mActiveLayout)
+ {
+ ItemRange range = GetItemRange(*mActiveLayout, mActiveLayoutTargetSize, currentLayoutPosition, cacheExtra/*reserve extra*/);
+ RemoveActorsOutsideRange( range );
+ AddActorsWithinRange( range, Self().GetCurrentSize() );
+
+ mScrollUpdatedSignal.Emit( Vector2(0.0f, currentLayoutPosition) );
+ }
+}
+
+void ItemView::SetMinimumSwipeSpeed(float speed)
+{
+ mMinimumSwipeSpeed = speed;
+}
+
+float ItemView::GetMinimumSwipeSpeed() const
+{
+ return mMinimumSwipeSpeed;
+}
+
+void ItemView::SetMinimumSwipeDistance(float distance)
+{
+ mMinimumSwipeDistance = distance;
+}
+
+float ItemView::GetMinimumSwipeDistance() const
+{
+ return mMinimumSwipeDistance;
+}
+
+void ItemView::SetWheelScrollDistanceStep(float step)
+{
+ mWheelScrollDistanceStep = step;
+}
+
+float ItemView::GetWheelScrollDistanceStep() const
+{
+ return mWheelScrollDistanceStep;
+}
+
+void ItemView::SetAnchoring(bool enabled)
+{
+ mAnchoringEnabled = enabled;
+}
+
+bool ItemView::GetAnchoring() const
+{
+ return mAnchoringEnabled;
+}
+
+void ItemView::SetAnchoringDuration(float durationSeconds)
+{
+ mAnchoringDuration = durationSeconds;
+}
+
+float ItemView::GetAnchoringDuration() const
+{
+ return mAnchoringDuration;
+}
+
+void ItemView::SetRefreshInterval(float intervalLayoutPositions)
+{
+ if( !Equals(mRefreshIntervalLayoutPositions, intervalLayoutPositions) )
+ {
+ mRefreshIntervalLayoutPositions = intervalLayoutPositions;
+
+ Actor self = Self();
+ if(mRefreshNotification)
+ {
+ self.RemovePropertyNotification(mRefreshNotification);
+ }
+ mRefreshNotification = self.AddPropertyNotification( Toolkit::ItemView::Property::LAYOUT_POSITION, StepCondition(mRefreshIntervalLayoutPositions, 0.0f) );
+ mRefreshNotification.NotifySignal().Connect( this, &ItemView::OnRefreshNotification );
+ }
+}
+
+float ItemView::GetRefreshInterval() const
+{
+ return mRefreshIntervalLayoutPositions;
+}
+
+void ItemView::SetRefreshEnabled(bool enabled)
+{
+ mRefreshEnabled = enabled;
+}
+
+Actor ItemView::GetItem(unsigned int itemId) const
+{
+ Actor actor;
+
+ ConstItemPoolIter iter = mItemPool.find( itemId );
+ if( iter != mItemPool.end() )
+ {
+ actor = iter->second;
+ }
+
+ return actor;
+}
+
+unsigned int ItemView::GetItemId( Actor actor ) const
+{
+ unsigned int itemId( 0 );
+
+ for ( ConstItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter )
+ {
+ if( iter->second == actor )
+ {
+ itemId = iter->first;
+ break;
+ }
+ }
+
+ return itemId;
+}
+
+void ItemView::InsertItem( Item newItem, float durationSeconds )
+{
+ mAddingItems = true;
+ Vector3 layoutSize = Self().GetCurrentSize();
+
+ Actor displacedActor;
+ ItemPoolIter afterDisplacedIter = mItemPool.end();
+
+ ItemPoolIter foundIter = mItemPool.find( newItem.first );
+ if( mItemPool.end() != foundIter )
+ {
+ SetupActor( newItem, layoutSize );
+ Self().Add( newItem.second );
+
+ displacedActor = foundIter->second;
+ foundIter->second = newItem.second;
+
+ afterDisplacedIter = ++foundIter;
+ }
+ else
+ {
+ // Inserting before the existing item range?
+ ItemPoolIter iter = mItemPool.begin();
+ if( iter != mItemPool.end() &&
+ iter->first > newItem.first )
+ {
+ displacedActor = iter->second;
+ mItemPool.erase( iter++ ); // iter is still valid after the erase
+
+ afterDisplacedIter = iter;
+ }
+ }
+
+ if( displacedActor )
+ {
+ // Move the existing actors to make room
+ for( ItemPoolIter iter = afterDisplacedIter; mItemPool.end() != iter; ++iter )
+ {
+ Actor temp = iter->second;
+ iter->second = displacedActor;
+ displacedActor = temp;
+
+ iter->second.RemoveConstraints();
+ mActiveLayout->ApplyConstraints( iter->second, iter->first, layoutSize, Self() );
+ }
+
+ // Create last item
+ ItemPool::reverse_iterator lastIter = mItemPool.rbegin();
+ if ( lastIter != mItemPool.rend() )
+ {
+ ItemId lastId = lastIter->first;
+ Item lastItem( lastId + 1, displacedActor );
+ mItemPool.insert( lastItem );
+
+ lastItem.second.RemoveConstraints();
+ mActiveLayout->ApplyConstraints( lastItem.second, lastItem.first, layoutSize, Self() );
+ }
+ }
+
+ CalculateDomainSize( layoutSize );
+
+ mAddingItems = false;
+}
+
+void ItemView::InsertItems( const ItemContainer& newItems, float durationSeconds )
+{
+ mAddingItems = true;
+ Vector3 layoutSize = Self().GetCurrentSize();
+
+ // Insert from lowest id to highest
+ std::set<Item> sortedItems;
+ for( ConstItemIter iter = newItems.begin(); newItems.end() != iter; ++iter )
+ {
+ sortedItems.insert( *iter );
+ }
+
+ for( std::set<Item>::iterator iter = sortedItems.begin(); sortedItems.end() != iter; ++iter )
+ {
+ Self().Add( iter->second );
+
+ ItemPoolIter foundIter = mItemPool.find( iter->first );
+ if( mItemPool.end() != foundIter )
+ {
+ Actor moveMe = foundIter->second;
+ foundIter->second = iter->second;
+
+ // Move the existing actors to make room
+ for( ItemPoolIter iter = ++foundIter; mItemPool.end() != iter; ++iter )
+ {
+ Actor temp = iter->second;
+ iter->second = moveMe;
+ moveMe = temp;
+ }
+
+ // Create last item
+ ItemId lastId = mItemPool.rbegin()->first;
+ Item lastItem( lastId + 1, moveMe );
+ mItemPool.insert( lastItem );
+ }
+ else
+ {
+ mItemPool.insert( *iter );
+ }
+ }
+
+ // Relayout everything
+ for (ItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
+ {
+ // If newly inserted
+ if( FindById( newItems, iter->first ) )
+ {
+ SetupActor( *iter, layoutSize );
+ }
+ else
+ {
+ iter->second.RemoveConstraints();
+ mActiveLayout->ApplyConstraints( iter->second, iter->first, layoutSize, Self() );
+ }
}
- const Vector3 layoutSize = Self().GetCurrentSize();
-
- ItemRange range = GetItemRange(*mActiveLayout, layoutSize, true/*reserve extra*/);
-
- RemoveItems(range);
- AddItems(*mActiveLayout, layoutSize, range);
+ CalculateDomainSize( layoutSize );
- // Keep refreshing whilst the layout is moving
- return mScrollAnimation || (mGestureState == Gesture::Started || mGestureState == Gesture::Continuing);
+ mAddingItems = false;
}
-void ItemView::SetMinimumSwipeSpeed(float speed)
+void ItemView::RemoveItem( unsigned int itemId, float durationSeconds )
{
- mMinimumSwipeSpeed = speed;
-}
+ bool actorsReordered = RemoveActor( itemId );
+ if( actorsReordered )
+ {
+ ReapplyAllConstraints();
-float ItemView::GetMinimumSwipeSpeed() const
-{
- return mMinimumSwipeSpeed;
+ OnItemsRemoved();
+ }
}
-void ItemView::SetMinimumSwipeDistance(float distance)
+void ItemView::RemoveItems( const ItemIdContainer& itemIds, float durationSeconds )
{
- mMinimumSwipeDistance = distance;
-}
+ bool actorsReordered( false );
-float ItemView::GetMinimumSwipeDistance() const
-{
- return mMinimumSwipeDistance;
-}
+ // Remove from highest id to lowest
+ set<ItemId> sortedItems;
+ for( ConstItemIdIter iter = itemIds.begin(); itemIds.end() != iter; ++iter )
+ {
+ sortedItems.insert( *iter );
+ }
-void ItemView::SetMouseWheelScrollDistanceStep(float step)
-{
- mMouseWheelScrollDistanceStep = step;
-}
+ for( set<ItemId>::reverse_iterator iter = sortedItems.rbegin(); sortedItems.rend() != iter; ++iter )
+ {
+ if( RemoveActor( *iter ) )
+ {
+ actorsReordered = true;
+ }
+ }
-float ItemView::GetMouseWheelScrollDistanceStep() const
-{
- return mMouseWheelScrollDistanceStep;
-}
+ if( actorsReordered )
+ {
+ ReapplyAllConstraints();
-void ItemView::SetAnchoring(bool enabled)
-{
- mAnchoringEnabled = enabled;
+ OnItemsRemoved();
+ }
}
-bool ItemView::GetAnchoring() const
+bool ItemView::RemoveActor(unsigned int itemId)
{
- return mAnchoringEnabled;
-}
+ bool reordered( false );
-void ItemView::SetAnchoringDuration(float durationSeconds)
-{
- mAnchoringDuration = durationSeconds;
-}
+ ItemPoolIter removeIter = mItemPool.find( itemId );
+ if( removeIter != mItemPool.end() )
+ {
+ ReleaseActor(itemId, removeIter->second);
+ }
+ else
+ {
+ // Removing before the existing item range?
+ ItemPoolIter iter = mItemPool.begin();
+ if( iter != mItemPool.end() &&
+ iter->first > itemId )
+ {
+ // In order to decrement the first visible item ID
+ mItemPool.insert( Item(iter->first - 1, Actor()) );
-float ItemView::GetAnchoringDuration() const
-{
- return mAnchoringDuration;
-}
+ removeIter = mItemPool.begin();
+ }
+ }
-void ItemView::SetRefreshInterval(unsigned int intervalMilliseconds)
-{
- mRefreshIntervalMilliseconds = intervalMilliseconds;
-}
+ if( removeIter != mItemPool.end() )
+ {
+ reordered = true;
+
+ // Adjust the remaining item IDs, for example if item 2 is removed:
+ // Initial actors: After insert:
+ // ID 1 - ActorA ID 1 - ActorA
+ // ID 2 - ActorB ID 2 - ActorC (previously ID 3)
+ // ID 3 - ActorC ID 3 - ActorB (previously ID 4)
+ // ID 4 - ActorD
+ for (ItemPoolIter iter = removeIter; iter != mItemPool.end(); ++iter)
+ {
+ if( iter->first < mItemPool.rbegin()->first )
+ {
+ iter->second = mItemPool[ iter->first + 1 ];
+ }
+ else
+ {
+ mItemPool.erase( iter );
+ break;
+ }
+ }
+ }
-unsigned int ItemView::GetRefreshInterval() const
-{
- return mRefreshIntervalMilliseconds;
+ return reordered;
}
-Actor ItemView::GetItem(unsigned int itemId) const
+void ItemView::ReplaceItem( Item replacementItem, float durationSeconds )
{
- Actor actor;
+ mAddingItems = true;
+ Vector3 layoutSize = Self().GetCurrentSize();
+
+ SetupActor( replacementItem, layoutSize );
+ Self().Add( replacementItem.second );
- ItemPool::IDKeyConstIter found = mItemPool.GetIDKeyContainer().find(itemId);
- if (found != mItemPool.GetIDKeyContainer().end())
+ const ItemPoolIter iter = mItemPool.find( replacementItem.first );
+ if( mItemPool.end() != iter )
+ {
+ ReleaseActor(iter->first, iter->second);
+ iter->second = replacementItem.second;
+ }
+ else
{
- actor = found->second;
+ mItemPool.insert( replacementItem );
}
- return actor;
+ CalculateDomainSize( layoutSize );
+
+ mAddingItems = false;
}
-unsigned int ItemView::GetItemId(Actor actor) const
+void ItemView::ReplaceItems( const ItemContainer& replacementItems, float durationSeconds )
{
- unsigned int itemId(0);
-
- ItemPool::ActorKeyConstIter found = mItemPool.GetActorKeyContainer().find(actor);
- if (found != mItemPool.GetActorKeyContainer().end())
+ for( ConstItemIter iter = replacementItems.begin(); replacementItems.end() != iter; ++iter )
{
- itemId = found->second;
+ ReplaceItem( *iter, durationSeconds );
}
-
- return itemId;
}
-void ItemView::RemoveItem(unsigned int itemId, float durationSeconds)
+void ItemView::RemoveActorsOutsideRange( ItemRange range )
{
- if (mItemPool.RemoveItem(itemId))
+ // Remove unwanted actors from the ItemView & ItemPool
+ for (ItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); )
{
- const ItemPool::IDKeyContainer& itemPool = mItemPool.GetIDKeyContainer();
- for (ItemPool::IDKeyConstIter iter = itemPool.begin(); iter != itemPool.end(); ++iter)
+ unsigned int current = iter->first;
+
+ if( ! range.Within( current ) )
{
- unsigned int id = iter->first;
- Actor actor = iter->second;
+ ReleaseActor(iter->first, iter->second);
- // Reposition the items if necessary
- actor.RemoveConstraints();
- ApplyConstraints(actor, *mActiveLayout, id, durationSeconds);
+ mItemPool.erase( iter++ ); // erase invalidates the return value of post-increment; iter remains valid
+ }
+ else
+ {
+ ++iter;
}
-
- CalculateDomainSize(Self().GetCurrentSize());
}
}
-Actor ItemView::CreateActor(unsigned int itemId)
+void ItemView::AddActorsWithinRange( ItemRange range, const Vector3& layoutSize )
{
- return mItemFactory.NewItem(itemId);
+ range.end = std::min(mItemFactory.GetNumberOfItems(), range.end);
+
+ // The order of addition depends on the scroll direction.
+ if (mRefreshOrderHint)
+ {
+ for (unsigned int itemId = range.begin; itemId < range.end; ++itemId)
+ {
+ AddNewActor( itemId, layoutSize );
+ }
+ }
+ else
+ {
+ for (unsigned int itemId = range.end; itemId > range.begin; --itemId)
+ {
+ AddNewActor( itemId-1, layoutSize );
+ }
+ }
+
+ // Total number of items may change dynamically.
+ // Always recalculate the domain size to reflect that.
+ CalculateDomainSize(Self().GetCurrentSize());
}
-void ItemView::ActorAddedToItemPool(Actor actor, unsigned int itemId, const Vector3& targetSize)
+void ItemView::AddNewActor( unsigned int itemId, const Vector3& layoutSize )
{
- Actor self = Self();
-
- actor.SetParentOrigin(ParentOrigin::CENTER);
- actor.SetAnchorPoint(AnchorPoint::CENTER);
+ mAddingItems = true;
- if (mActiveLayout)
+ if( mItemPool.end() == mItemPool.find( itemId ) )
{
- Vector3 size;
- if(mActiveLayout->GetItemSize(itemId, targetSize, size))
+ Actor actor = mItemFactory.NewItem( itemId );
+
+ if( actor )
{
- actor.SetSize(size);
- }
+ Item newItem( itemId, actor );
- ApplyConstraints(actor, *mActiveLayout, itemId, 0.0f/*immediate*/);
+ mItemPool.insert( newItem );
+
+ SetupActor( newItem, layoutSize );
+ Self().Add( actor );
+ }
}
- self.Add(actor);
+ mAddingItems = false;
}
-void ItemView::ActorRemovedFromItemPool(Actor actor, unsigned int itemId)
+void ItemView::SetupActor( Item item, const Vector3& layoutSize )
{
- Self().Remove(actor);
-}
+ item.second.SetParentOrigin( mItemsParentOrigin );
+ item.second.SetAnchorPoint( mItemsAnchorPoint );
-void ItemView::RemoveItems(ItemRange range)
-{
- mItemPool.RemoveItems(range);
+ if( mActiveLayout )
+ {
+ Vector3 size;
+ mActiveLayout->GetItemSize( item.first, mActiveLayoutTargetSize, size );
+ item.second.SetSize( size.GetVectorXY() );
+
+ mActiveLayout->ApplyConstraints( item.second, item.first, layoutSize, Self() );
+ }
}
-void ItemView::AddItems(ItemLayout& layout, const Vector3& layoutSize, ItemRange range)
+void ItemView::ReleaseActor( ItemId item, Actor actor )
{
- range.end = min(mItemFactory.GetNumberOfItems(), range.end);
-
- mItemPool.AddItems(mRefreshOrderHint, range, layoutSize);
+ Self().Remove( actor );
+ mItemFactory.ItemReleased(item, actor);
}
-ItemRange ItemView::GetItemRange(ItemLayout& layout, const Vector3& layoutSize, bool reserveExtra)
+ItemRange ItemView::GetItemRange(ItemLayout& layout, const Vector3& layoutSize, float layoutPosition, bool reserveExtra)
{
unsigned int itemCount = mItemFactory.GetNumberOfItems();
ItemRange available(0u, itemCount);
- ItemRange range = layout.GetItemsWithinArea( GetCurrentLayoutPosition(0), layoutSize );
+ ItemRange range = layout.GetItemsWithinArea( layoutPosition, layoutSize );
if (reserveExtra)
{
return range.Intersection(available);
}
+void ItemView::OnChildAdd(Actor& child)
+{
+ if(!mAddingItems)
+ {
+ // We don't want to do this downcast check for any item added by ItemView itself.
+ Dali::Toolkit::ScrollBar scrollBar = Dali::Toolkit::ScrollBar::DownCast(child);
+ if(scrollBar)
+ {
+ scrollBar.SetScrollPropertySource(Self(),
+ Toolkit::ItemView::Property::LAYOUT_POSITION,
+ Toolkit::Scrollable::Property::SCROLL_POSITION_MIN_Y,
+ Toolkit::Scrollable::Property::SCROLL_POSITION_MAX_Y,
+ Toolkit::ItemView::Property::SCROLL_CONTENT_SIZE);
+ }
+ }
+}
+
bool ItemView::OnTouchEvent(const TouchEvent& event)
{
// Ignore events with multiple-touch points
mScrollDistance = 0.0f;
mScrollSpeed = 0.0f;
- Self().SetProperty(mPropertyScrollSpeed, mScrollSpeed);
+ Self().SetProperty(Toolkit::ItemView::Property::SCROLL_SPEED, mScrollSpeed);
mScrollOvershoot = 0.0f;
AnimateScrollOvershoot(0.0f);
- mScrollCompletedSignalV2.Emit(GetCurrentScrollPosition());
+ if(mScrollAnimation)
+ {
+ mScrollCompletedSignal.Emit(GetCurrentScrollPosition());
+ }
RemoveAnimation(mScrollAnimation);
}
return true; // consume since we're potentially scrolling
}
-bool ItemView::OnMouseWheelEvent(const MouseWheelEvent& event)
+bool ItemView::OnWheelEvent(const WheelEvent& event)
{
- // Respond the mouse wheel event to scroll
+ // Respond the wheel event to scroll
if (mActiveLayout)
{
Actor self = Self();
const Vector3 layoutSize = Self().GetCurrentSize();
- float layoutPositionDelta = GetCurrentLayoutPosition(0) + (event.z * mMouseWheelScrollDistanceStep * mActiveLayout->GetScrollSpeedFactor());
+ float layoutPositionDelta = GetCurrentLayoutPosition(0) - (event.z * mWheelScrollDistanceStep * mActiveLayout->GetScrollSpeedFactor());
float firstItemScrollPosition = ClampFirstItemPosition(layoutPositionDelta, layoutSize, *mActiveLayout);
- mScrollPositionObject.SetProperty( ScrollConnector::SCROLL_POSITION, firstItemScrollPosition );
- self.SetProperty(mPropertyPosition, GetScrollPosition(firstItemScrollPosition, layoutSize));
- mScrollStartedSignalV2.Emit(GetCurrentScrollPosition());
- StartRefreshTimer();
+ self.SetProperty(Toolkit::ItemView::Property::LAYOUT_POSITION, firstItemScrollPosition );
+
+ mScrollStartedSignal.Emit(GetCurrentScrollPosition());
+ mRefreshEnabled = true;
}
- if (mMouseWheelEventFinishedTimer.IsRunning())
+ if (mWheelEventFinishedTimer.IsRunning())
{
- mMouseWheelEventFinishedTimer.Stop();
+ mWheelEventFinishedTimer.Stop();
}
- mMouseWheelEventFinishedTimer.Start();
+ mWheelEventFinishedTimer.Start();
return true;
}
-bool ItemView::OnMouseWheelEventFinished()
+bool ItemView::OnWheelEventFinished()
{
if (mActiveLayout)
{
RemoveAnimation(mScrollAnimation);
- // No more mouse wheel events coming. Do the anchoring if enabled.
+ // No more wheel events coming. Do the anchoring if enabled.
mScrollAnimation = DoAnchoring();
if (mScrollAnimation)
{
- StartRefreshTimer();
-
mScrollAnimation.FinishedSignal().Connect(this, &ItemView::OnScrollFinished);
mScrollAnimation.Play();
}
mScrollOvershoot = 0.0f;
AnimateScrollOvershoot(0.0f);
- mScrollCompletedSignalV2.Emit(GetCurrentScrollPosition());
+ mScrollCompletedSignal.Emit(GetCurrentScrollPosition());
}
}
return false;
}
-void ItemView::ApplyConstraints(Actor& actor, ItemLayout& layout, unsigned int itemId, float duration)
+void ItemView::ReapplyAllConstraints()
{
- ItemLayout::Vector3Function positionConstraint;
- if (layout.GetPositionConstraint(itemId, positionConstraint))
- {
- WrappedVector3Constraint wrapped(positionConstraint, itemId);
-
- Constraint constraint = Constraint::New<Vector3>( Actor::POSITION,
- Source( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ),
- ParentSource( mPropertyScrollSpeed ),
- ParentSource( Actor::SIZE ),
- wrapped );
- constraint.SetApplyTime(duration);
-
- actor.ApplyConstraint(constraint);
- }
-
- ItemLayout::QuaternionFunction rotationConstraint;
- if (layout.GetRotationConstraint(itemId, rotationConstraint))
- {
- WrappedQuaternionConstraint wrapped(rotationConstraint, itemId);
-
- Constraint constraint = Constraint::New<Quaternion>( Actor::ROTATION,
- Source( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ),
- ParentSource( mPropertyScrollSpeed ),
- ParentSource( Actor::SIZE ),
- wrapped );
- constraint.SetApplyTime(duration);
+ Vector3 layoutSize = Self().GetCurrentSize();
- actor.ApplyConstraint(constraint);
- }
-
- ItemLayout::Vector3Function scaleConstraint;
- if (layout.GetScaleConstraint(itemId, scaleConstraint))
+ for (ConstItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
{
- WrappedVector3Constraint wrapped(scaleConstraint, itemId);
-
- Constraint constraint = Constraint::New<Vector3>( Actor::SCALE,
- Source( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ),
- ParentSource( mPropertyScrollSpeed ),
- ParentSource( Actor::SIZE ),
- wrapped );
- constraint.SetApplyTime(duration);
+ unsigned int id = iter->first;
+ Actor actor = iter->second;
- actor.ApplyConstraint(constraint);
+ actor.RemoveConstraints();
+ mActiveLayout->ApplyConstraints(actor, id, layoutSize, Self());
}
+}
- ItemLayout::Vector4Function colorConstraint;
- if (layout.GetColorConstraint(itemId, colorConstraint))
- {
- WrappedVector4Constraint wrapped(colorConstraint, itemId);
-
- Constraint constraint = Constraint::New<Vector4>( Actor::COLOR,
- Source( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ),
- ParentSource( mPropertyScrollSpeed ),
- ParentSource( Actor::SIZE ),
- wrapped );
- constraint.SetApplyTime(duration);
-
- // Release color constraints slowly; this allows ItemView to co-exist with ImageActor fade-in
- constraint.SetRemoveTime(DEFAULT_COLOR_VISIBILITY_REMOVE_TIME);
- constraint.SetRemoveAction(Dali::Constraint::Discard);
-
- actor.ApplyConstraint(constraint);
- }
+void ItemView::OnItemsRemoved()
+{
+ CalculateDomainSize(Self().GetCurrentSize());
- ItemLayout::BoolFunction visibilityConstraint;
- if (layout.GetVisibilityConstraint(itemId, visibilityConstraint))
+ // Adjust scroll-position after an item is removed
+ if( mActiveLayout )
{
- WrappedBoolConstraint wrapped(visibilityConstraint, itemId);
-
- Constraint constraint = Constraint::New<bool>( Actor::VISIBLE,
- Source( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ),
- ParentSource( mPropertyScrollSpeed ),
- ParentSource( Actor::SIZE ),
- wrapped );
- constraint.SetApplyTime(duration);
-
- // Release visibility constraints the same time as the color constraint
- constraint.SetRemoveTime(DEFAULT_COLOR_VISIBILITY_REMOVE_TIME);
- constraint.SetRemoveAction(Dali::Constraint::Discard);
-
- actor.ApplyConstraint(constraint);
+ float firstItemScrollPosition = ClampFirstItemPosition(GetCurrentLayoutPosition(0), Self().GetCurrentSize(), *mActiveLayout);
+ Self().SetProperty( Toolkit::ItemView::Property::LAYOUT_POSITION, firstItemScrollPosition );
}
}
{
Actor self = Self();
float minLayoutPosition = layout.GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), targetSize);
- float clamppedPosition = min(0.0f, max(minLayoutPosition, targetPosition));
+ float clamppedPosition = std::min(0.0f, std::max(minLayoutPosition, targetPosition));
mScrollOvershoot = targetPosition - clamppedPosition;
- self.SetProperty(mPropertyMinimumLayoutPosition, minLayoutPosition);
+ self.SetProperty(Toolkit::Scrollable::Property::SCROLL_POSITION_MAX, Vector2(0.0f, -minLayoutPosition));
return clamppedPosition;
}
-void ItemView::OnPan(PanGesture gesture)
+void ItemView::OnPan( const PanGesture& gesture )
{
Actor self = Self();
const Vector3 layoutSize = Self().GetCurrentSize();
RemoveAnimation(mScrollAnimation);
- float flickAnimationDuration = mActiveLayout->GetItemFlickAnimationDuration() * max(1.0f, fabsf(firstItemScrollPosition - GetCurrentLayoutPosition(0)));
+ float flickAnimationDuration = Clamp( mActiveLayout->GetItemFlickAnimationDuration() * std::max(1.0f, fabsf(firstItemScrollPosition - GetCurrentLayoutPosition(0)))
+ , DEFAULT_MINIMUM_SWIPE_DURATION, DEFAULT_MAXIMUM_SWIPE_DURATION);
+
mScrollAnimation = Animation::New(flickAnimationDuration);
- mScrollAnimation.AnimateTo( Property( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ), firstItemScrollPosition, AlphaFunctions::EaseOut );
- mScrollAnimation.AnimateTo( Property(self, mPropertyPosition), GetScrollPosition(firstItemScrollPosition, layoutSize), AlphaFunctions::EaseOut );
- mScrollAnimation.AnimateTo( Property(self, mPropertyScrollSpeed), 0.0f, AlphaFunctions::EaseOut );
+ mScrollAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::LAYOUT_POSITION ), firstItemScrollPosition, AlphaFunction::EASE_OUT );
+ mScrollAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::SCROLL_SPEED), 0.0f, AlphaFunction::EASE_OUT );
mIsFlicking = true;
// Check whether it has already scrolled to the end
// Reset the overshoot if no scroll animation.
if (!mScrollAnimation)
{
- mScrollCompletedSignalV2.Emit(GetCurrentScrollPosition());
+ mScrollCompletedSignal.Emit(GetCurrentScrollPosition());
AnimateScrollOvershoot(0.0f, false);
}
case Gesture::Started: // Fall through
{
mTotalPanDisplacement = Vector2::ZERO;
+ mScrollStartedSignal.Emit(GetCurrentScrollPosition());
+ mRefreshEnabled = true;
}
case Gesture::Continuing:
{
mScrollDistance = CalculateScrollDistance(gesture.displacement, *mActiveLayout);
- mScrollSpeed = Clamp((gesture.GetSpeed() * mActiveLayout->GetScrollSpeedFactor() * MILLISECONDS_PER_SECONDS), 0.0f, mActiveLayout->GetMaximumSwipeSpeed());
+ mScrollSpeed = Clamp((gesture.GetSpeed() * gesture.GetSpeed() * mActiveLayout->GetFlickSpeedFactor() * MILLISECONDS_PER_SECONDS), 0.0f, mActiveLayout->GetMaximumSwipeSpeed());
// Refresh order depends on the direction of the scroll; negative is towards the last item.
mRefreshOrderHint = mScrollDistance < 0.0f;
- RemoveAnimation(mScrollSpeedAnimation);
- mScrollSpeedAnimation = Animation::New(0.3f);
- mScrollSpeedAnimation.AnimateTo( Property(self, mPropertyScrollSpeed), mScrollSpeed, AlphaFunctions::Linear );
- mScrollSpeedAnimation.Play();
-
float layoutPositionDelta = GetCurrentLayoutPosition(0) + (mScrollDistance * mActiveLayout->GetScrollSpeedFactor());
float firstItemScrollPosition = ClampFirstItemPosition(layoutPositionDelta, layoutSize, *mActiveLayout);
- mScrollPositionObject.SetProperty( ScrollConnector::SCROLL_POSITION, firstItemScrollPosition );
- self.SetProperty(mPropertyPosition, GetScrollPosition(firstItemScrollPosition, layoutSize));
- mScrollStartedSignalV2.Emit(GetCurrentScrollPosition());
+ float currentOvershoot = self.GetProperty<float>(Toolkit::ItemView::Property::OVERSHOOT);
- mTotalPanDisplacement += gesture.displacement;
- mScrollOvershoot = layoutPositionDelta - firstItemScrollPosition;
- if( mScrollOvershoot > Math::MACHINE_EPSILON_1 )
- {
- AnimateScrollOvershoot(1.0f);
- }
- else if( mScrollOvershoot < -Math::MACHINE_EPSILON_1 )
- {
- AnimateScrollOvershoot(-1.0f);
- }
- else
+ self.SetProperty(Toolkit::ItemView::Property::LAYOUT_POSITION, firstItemScrollPosition );
+
+ if( ( firstItemScrollPosition >= 0.0f &&
+ currentOvershoot < 1.0f ) ||
+ ( firstItemScrollPosition <= mActiveLayout->GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), layoutSize) &&
+ currentOvershoot > -1.0f ) )
{
- AnimateScrollOvershoot(0.0f);
+ mTotalPanDisplacement += gesture.displacement;
}
- StartRefreshTimer();
+ mScrollOvershoot = CalculateScrollOvershoot();
+ self.SetProperty( Toolkit::ItemView::Property::OVERSHOOT, mScrollOvershoot );
}
break;
if (mScrollAnimation)
{
- StartRefreshTimer();
-
mScrollAnimation.FinishedSignal().Connect(this, &ItemView::OnScrollFinished);
mScrollAnimation.Play();
}
return true;
}
-Actor ItemView::GetNextKeyboardFocusableActor(Actor actor, Control::KeyboardFocusNavigationDirection direction, bool loopEnabled)
+Actor ItemView::GetNextKeyboardFocusableActor(Actor actor, Toolkit::Control::KeyboardFocus::Direction direction, bool loopEnabled)
{
Actor nextFocusActor;
if(mActiveLayout)
int nextItemID = GetItemId(commitedFocusableActor);
float layoutPosition = GetCurrentLayoutPosition(0);
Vector3 layoutSize = Self().GetCurrentSize();
- Vector3 focusItemPosition = Vector3::ZERO;
- ItemLayout::Vector3Function itemPositionConstraint;
- if (mActiveLayout->GetPositionConstraint(nextItemID, itemPositionConstraint))
- {
- focusItemPosition = itemPositionConstraint(Vector3::ZERO, layoutPosition + nextItemID, 0.0f, layoutSize);
- }
float scrollTo = mActiveLayout->GetClosestOnScreenLayoutPosition(nextItemID, layoutPosition, layoutSize);
- ScrollTo(Vector3(0.0f, scrollTo, 0.0f), DEFAULT_KEYBOARD_FOCUS_SCROLL_DURATION);
+ ScrollTo(Vector2(0.0f, scrollTo), DEFAULT_KEYBOARD_FOCUS_SCROLL_DURATION);
}
}
float anchorPosition = mActiveLayout->GetClosestAnchorPosition( GetCurrentLayoutPosition(0) );
anchoringAnimation = Animation::New(mAnchoringDuration);
- anchoringAnimation.AnimateTo( Property( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ), anchorPosition, AlphaFunctions::EaseOut );
- anchoringAnimation.AnimateTo( Property(self, mPropertyPosition), GetScrollPosition(anchorPosition, self.GetCurrentSize()), AlphaFunctions::EaseOut );
- anchoringAnimation.AnimateTo( Property(self, mPropertyScrollSpeed), 0.0f, AlphaFunctions::EaseOut );
+ anchoringAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::LAYOUT_POSITION), anchorPosition, AlphaFunction::EASE_OUT );
+ anchoringAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::SCROLL_SPEED), 0.0f, AlphaFunction::EASE_OUT );
if(!mIsFlicking)
{
AnimateScrollOvershoot(0.0f);
RemoveAnimation(mScrollAnimation); // mScrollAnimation is used to query whether we're scrolling
- mScrollCompletedSignalV2.Emit(GetCurrentScrollPosition());
+ mScrollCompletedSignal.Emit(GetCurrentScrollPosition());
if(mIsFlicking && fabsf(mScrollOvershoot) > Math::MACHINE_EPSILON_1)
{
mScrollOvershoot = 0.0f;
}
+void ItemView::OnLayoutActivationScrollFinished(Animation& source)
+{
+ RemoveAnimation(mScrollAnimation);
+ mRefreshEnabled = true;
+ DoRefresh(GetCurrentLayoutPosition(0), true);
+
+ // Emit the layout activated signal
+ mLayoutActivatedSignal.Emit();
+}
+
void ItemView::OnOvershootOnFinished(Animation& animation)
{
mAnimatingOvershootOn = false;
}
}
-void ItemView::StartRefreshTimer()
-{
- if (!mRefreshTimer)
- {
- mRefreshTimer = Timer::New( mRefreshIntervalMilliseconds );
- mRefreshTimer.TickSignal().Connect( this, &ItemView::OnRefreshTick );
- }
-
- if (!mRefreshTimer.IsRunning())
- {
- mRefreshTimer.Start();
- }
-}
-
-void ItemView::CancelRefreshTimer()
-{
- if (mRefreshTimer)
- {
- mRefreshTimer.Stop();
- }
-}
-
void ItemView::ScrollToItem(unsigned int itemId, float durationSeconds)
{
Actor self = Self();
const Vector3 layoutSize = Self().GetCurrentSize();
float firstItemScrollPosition = ClampFirstItemPosition(mActiveLayout->GetItemScrollToPosition(itemId), layoutSize, *mActiveLayout);
- StartRefreshTimer();
-
if(durationSeconds > 0.0f)
{
RemoveAnimation(mScrollAnimation);
mScrollAnimation = Animation::New(durationSeconds);
- mScrollAnimation.AnimateTo( Property( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ), firstItemScrollPosition, AlphaFunctions::EaseOut );
- mScrollAnimation.AnimateTo( Property(self, mPropertyPosition), GetScrollPosition(firstItemScrollPosition, layoutSize), AlphaFunctions::EaseOut );
+ mScrollAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::LAYOUT_POSITION), firstItemScrollPosition, AlphaFunction::EASE_OUT );
mScrollAnimation.FinishedSignal().Connect(this, &ItemView::OnScrollFinished);
mScrollAnimation.Play();
}
else
{
- mScrollPositionObject.SetProperty( ScrollConnector::SCROLL_POSITION, firstItemScrollPosition );
+ self.SetProperty( Toolkit::ItemView::Property::LAYOUT_POSITION, firstItemScrollPosition );
AnimateScrollOvershoot(0.0f);
}
- mScrollStartedSignalV2.Emit(GetCurrentScrollPosition());
+ mScrollStartedSignal.Emit(GetCurrentScrollPosition());
+ mRefreshEnabled = true;
}
void ItemView::RemoveAnimation(Animation& animation)
if(mActiveLayout)
{
- ItemLayout::Vector3Function firstItemPositionConstraint;
- if (mActiveLayout->GetPositionConstraint(0, firstItemPositionConstraint))
- {
- firstItemPosition = firstItemPositionConstraint(Vector3::ZERO, 0, 0.0f, layoutSize);
- }
+ firstItemPosition = mActiveLayout->GetItemPosition( 0,0,layoutSize );
float minLayoutPosition = mActiveLayout->GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), layoutSize);
- ItemLayout::Vector3Function lastItemPositionConstraint;
- if (mActiveLayout->GetPositionConstraint(fabs(minLayoutPosition), lastItemPositionConstraint))
- {
- lastItemPosition = lastItemPositionConstraint(Vector3::ZERO, fabs(minLayoutPosition), 0.0f, layoutSize);
- }
+ lastItemPosition = mActiveLayout->GetItemPosition( fabs(minLayoutPosition),fabs(minLayoutPosition),layoutSize );
+
+ float domainSize;
if(IsHorizontal(mActiveLayout->GetOrientation()))
{
- self.SetProperty(mPropertyPositionMin, Vector3(0.0f, firstItemPosition.x, 0.0f));
- self.SetProperty(mPropertyPositionMax, Vector3(0.0f, lastItemPosition.x, 0.0f));
+ domainSize = fabs(firstItemPosition.x - lastItemPosition.x);
}
else
{
- self.SetProperty(mPropertyPositionMin, Vector3(0.0f, firstItemPosition.y, 0.0f));
- self.SetProperty(mPropertyPositionMax, Vector3(0.0f, lastItemPosition.y, 0.0f));
+ domainSize = fabs(firstItemPosition.y - lastItemPosition.y);
}
+ self.SetProperty(Toolkit::Scrollable::Property::SCROLL_POSITION_MIN, Vector2::ZERO);
+ self.SetProperty(Toolkit::Scrollable::Property::SCROLL_POSITION_MAX, Vector2(0.0f, -minLayoutPosition));
+
+ self.SetProperty(Toolkit::ItemView::Property::SCROLL_CONTENT_SIZE, domainSize);
+
bool isLayoutScrollable = IsLayoutScrollable(layoutSize);
- self.SetProperty(mPropertyCanScrollVertical, isLayoutScrollable);
- self.SetProperty(mPropertyCanScrollHorizontal, false);
+ self.SetProperty(Toolkit::Scrollable::Property::CAN_SCROLL_VERTICAL, isLayoutScrollable);
+ self.SetProperty(Toolkit::Scrollable::Property::CAN_SCROLL_HORIZONTAL, false);
}
}
-Vector3 ItemView::GetDomainSize() const
+Vector2 ItemView::GetDomainSize() const
{
Actor self = Self();
- float minScrollPosition = self.GetProperty<float>(mPropertyPositionMin);
- float maxScrollPosition = self.GetProperty<float>(mPropertyPositionMax);
+ float minScrollPosition = self.GetProperty<float>(Toolkit::Scrollable::Property::SCROLL_POSITION_MIN_Y);
+ float maxScrollPosition = self.GetProperty<float>(Toolkit::Scrollable::Property::SCROLL_POSITION_MAX_Y);
- return Vector3(0.0f, fabs(maxScrollPosition - minScrollPosition), 0.0f);
+ return Vector2(0.0f, fabs(GetScrollPosition(minScrollPosition, self.GetCurrentSize()) - GetScrollPosition(-maxScrollPosition, self.GetCurrentSize())));
}
bool ItemView::IsLayoutScrollable(const Vector3& layoutSize)
float ItemView::GetScrollPosition(float layoutPosition, const Vector3& layoutSize) const
{
- Vector3 firstItemPosition(Vector3::ZERO);
- ItemLayout::Vector3Function firstItemPositionConstraint;
- if (mActiveLayout->GetPositionConstraint(0, firstItemPositionConstraint))
- {
- firstItemPosition = firstItemPositionConstraint(Vector3::ZERO, layoutPosition, 0.0f, layoutSize);
- }
-
+ Vector3 firstItemPosition( mActiveLayout->GetItemPosition(0, layoutPosition, layoutSize ) );
return IsHorizontal(mActiveLayout->GetOrientation()) ? firstItemPosition.x: firstItemPosition.y;
}
-Vector3 ItemView::GetCurrentScrollPosition() const
+Vector2 ItemView::GetCurrentScrollPosition() const
{
- float currentLayoutPosition = GetCurrentLayoutPosition(0);
- return Vector3(0.0f, GetScrollPosition(currentLayoutPosition, Self().GetCurrentSize()), 0.0f);
+ return Vector2(0.0f, GetScrollPosition(GetCurrentLayoutPosition(0), Self().GetCurrentSize()));
}
void ItemView::AddOverlay(Actor actor)
{
+ actor.SetDrawMode( DrawMode::OVERLAY_2D );
Self().Add(actor);
}
Self().Remove(actor);
}
-void ItemView::ScrollTo(const Vector3& position, float duration)
+void ItemView::ScrollTo(const Vector2& position, float duration)
{
Actor self = Self();
const Vector3 layoutSize = Self().GetCurrentSize();
float firstItemScrollPosition = ClampFirstItemPosition(position.y, layoutSize, *mActiveLayout);
- StartRefreshTimer();
-
if(duration > 0.0f)
{
RemoveAnimation(mScrollAnimation);
mScrollAnimation = Animation::New(duration);
- mScrollAnimation.AnimateTo( Property( mScrollPositionObject, ScrollConnector::SCROLL_POSITION ), firstItemScrollPosition, AlphaFunctions::EaseOut );
- mScrollAnimation.AnimateTo( Property(self, mPropertyPosition), GetScrollPosition(firstItemScrollPosition, layoutSize), AlphaFunctions::EaseOut );
+ mScrollAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::LAYOUT_POSITION), firstItemScrollPosition, AlphaFunction::EASE_OUT );
mScrollAnimation.FinishedSignal().Connect(this, &ItemView::OnScrollFinished);
mScrollAnimation.Play();
}
else
{
- mScrollPositionObject.SetProperty( ScrollConnector::SCROLL_POSITION, firstItemScrollPosition );
+ self.SetProperty( Toolkit::ItemView::Property::LAYOUT_POSITION, firstItemScrollPosition );
AnimateScrollOvershoot(0.0f);
}
- mScrollStartedSignalV2.Emit(GetCurrentScrollPosition());
+ mScrollStartedSignal.Emit(GetCurrentScrollPosition());
+ mRefreshEnabled = true;
}
-void ItemView::ApplyOvershootOverlayConstraints()
+void ItemView::SetOvershootEffectColor( const Vector4& color )
{
- Constraint constraint = Constraint::New<float>( Actor::SIZE_WIDTH,
- ParentSource( mPropertyScrollDirection ),
- ParentSource( mPropertyOvershoot ),
- ParentSource( Actor::SIZE ),
- OvershootOverlaySizeConstraint() );
- mOvershootOverlay.ApplyConstraint(constraint);
- mOvershootOverlay.SetSize(OVERSHOOT_BOUNCE_IMAGE_1_PIXEL_AREA.width, OVERSHOOT_BOUNCE_IMAGE_1_PIXEL_AREA.height);
-
- constraint = Constraint::New<Quaternion>( Actor::ROTATION,
- ParentSource( mPropertyScrollDirection ),
- ParentSource( mPropertyOvershoot ),
- OvershootOverlayRotationConstraint() );
- mOvershootOverlay.ApplyConstraint(constraint);
-
- constraint = Constraint::New<Vector3>( Actor::POSITION,
- ParentSource( Actor::SIZE ),
- ParentSource( mPropertyScrollDirection ),
- ParentSource( mPropertyOvershoot ),
- OvershootOverlayPositionConstraint() );
- mOvershootOverlay.ApplyConstraint(constraint);
-
- constraint = Constraint::New<bool>( Actor::VISIBLE,
- ParentSource( mPropertyCanScrollVertical ),
- OvershootOverlayVisibilityConstraint() );
- mOvershootOverlay.ApplyConstraint(constraint);
+ mOvershootEffectColor = color;
+ if( mOvershootOverlay )
+ {
+ mOvershootOverlay.SetColor( color );
+ }
+}
- int effectOvershootPropertyIndex = mOvershootEffect.GetPropertyIndex(mOvershootEffect.GetOvershootPropertyName());
+void ItemView::EnableScrollOvershoot( bool enable )
+{
Actor self = Self();
- constraint = Constraint::New<float>( effectOvershootPropertyIndex,
- Source( self, mPropertyOvershoot ),
- EqualToConstraint() );
- mOvershootEffect.ApplyConstraint(constraint);
+ if( enable )
+ {
+ Property::Index effectOvershootPropertyIndex = Property::INVALID_INDEX;
+ mOvershootOverlay = CreateBouncingEffectActor( effectOvershootPropertyIndex );
+ mOvershootOverlay.SetColor(mOvershootEffectColor);
+ mOvershootOverlay.SetParentOrigin(ParentOrigin::TOP_LEFT);
+ mOvershootOverlay.SetAnchorPoint(AnchorPoint::TOP_LEFT);
+ mOvershootOverlay.SetDrawMode( DrawMode::OVERLAY_2D );
+ self.Add(mOvershootOverlay);
+
+ Constraint constraint = Constraint::New<Vector3>( mOvershootOverlay, Actor::Property::SIZE, OvershootOverlaySizeConstraint(mOvershootSize.height) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::SCROLL_DIRECTION ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::LAYOUT_ORIENTATION ) );
+ constraint.AddSource( ParentSource( Actor::Property::SIZE ) );
+ constraint.Apply();
+
+ mOvershootOverlay.SetSize(mOvershootSize.width, mOvershootSize.height);
+
+ constraint = Constraint::New<Quaternion>( mOvershootOverlay, Actor::Property::ORIENTATION, OvershootOverlayRotationConstraint );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::SCROLL_DIRECTION ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::LAYOUT_ORIENTATION ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::OVERSHOOT ) );
+ constraint.Apply();
+
+ constraint = Constraint::New<Vector3>( mOvershootOverlay, Actor::Property::POSITION, OvershootOverlayPositionConstraint );
+ constraint.AddSource( ParentSource( Actor::Property::SIZE ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::SCROLL_DIRECTION ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::LAYOUT_ORIENTATION ) );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::OVERSHOOT ) );
+ constraint.Apply();
+
+ constraint = Constraint::New<bool>( mOvershootOverlay, Actor::Property::VISIBLE, OvershootOverlayVisibilityConstraint );
+ constraint.AddSource( ParentSource( Toolkit::Scrollable::Property::CAN_SCROLL_VERTICAL ) );
+ constraint.Apply();
+
+ constraint = Constraint::New<float>( mOvershootOverlay, effectOvershootPropertyIndex, EqualToConstraint() );
+ constraint.AddSource( ParentSource( Toolkit::ItemView::Property::OVERSHOOT ) );
+ constraint.Apply();
+ }
+ else
+ {
+ if( mOvershootOverlay )
+ {
+ self.Remove(mOvershootOverlay);
+ mOvershootOverlay.Reset();
+ }
+ }
}
float ItemView::CalculateScrollOvershoot()
float scrollDistance = CalculateScrollDistance(mTotalPanDisplacement, *mActiveLayout) * mActiveLayout->GetScrollSpeedFactor();
float positionDelta = GetCurrentLayoutPosition(0) + scrollDistance;
float minLayoutPosition = mActiveLayout->GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), Self().GetCurrentSize());
- self.SetProperty(mPropertyMinimumLayoutPosition, minLayoutPosition);
- float clamppedPosition = min(0.0f, max(minLayoutPosition, positionDelta));
+ self.SetProperty(Toolkit::Scrollable::Property::SCROLL_POSITION_MAX, Vector2(0.0f, -minLayoutPosition));
+ float clamppedPosition = std::min(0.0f, std::max(minLayoutPosition, positionDelta));
overshoot = positionDelta - clamppedPosition;
}
- return overshoot;
+ return overshoot > 0.0f ? std::min(overshoot, 1.0f) : std::max(overshoot, -1.0f);
}
void ItemView::AnimateScrollOvershoot(float overshootAmount, bool animateBack)
}
Actor self = Self();
- float currentOvershoot = self.GetProperty<float>(mPropertyOvershoot);
- float duration = DEFAULT_OVERSHOOT_ANIMATION_DURATION * (animatingOn ? (1.0f - fabsf(currentOvershoot)) : fabsf(currentOvershoot));
- RemoveAnimation(mScrollOvershootAnimation);
- mScrollOvershootAnimation = Animation::New(duration);
- mScrollOvershootAnimation.FinishedSignal().Connect(this, &ItemView::OnOvershootOnFinished);
- mScrollOvershootAnimation.AnimateTo( Property(self, mPropertyOvershoot), overshootAmount, TimePeriod(0.0f, duration) );
- mScrollOvershootAnimation.Play();
+ if(mOvershootAnimationSpeed > Math::MACHINE_EPSILON_0)
+ {
+ float currentOvershoot = self.GetProperty<float>(Toolkit::ItemView::Property::OVERSHOOT);
+ float duration = 0.0f;
+
+ if (mOvershootOverlay)
+ {
+ duration = mOvershootOverlay.GetCurrentSize().height * (animatingOn ? (1.0f - fabsf(currentOvershoot)) : fabsf(currentOvershoot)) / mOvershootAnimationSpeed;
+ }
+
+ RemoveAnimation(mScrollOvershootAnimation);
+ mScrollOvershootAnimation = Animation::New(duration);
+ mScrollOvershootAnimation.FinishedSignal().Connect(this, &ItemView::OnOvershootOnFinished);
+ mScrollOvershootAnimation.AnimateTo( Property(self, Toolkit::ItemView::Property::OVERSHOOT), overshootAmount, TimePeriod(0.0f, duration) );
+ mScrollOvershootAnimation.Play();
+
+ mAnimatingOvershootOn = animatingOn;
+ }
+ else
+ {
+ self.SetProperty( Toolkit::ItemView::Property::OVERSHOOT, overshootAmount );
+ }
+}
+
+void ItemView::SetItemsParentOrigin( const Vector3& parentOrigin )
+{
+ if( parentOrigin != mItemsParentOrigin )
+ {
+ mItemsParentOrigin = parentOrigin;
+ for (ItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
+ {
+ iter->second.SetParentOrigin(parentOrigin);
+ }
+ }
+}
+
+Vector3 ItemView::GetItemsParentOrigin() const
+{
+ return mItemsParentOrigin;
+}
+
+void ItemView::SetItemsAnchorPoint( const Vector3& anchorPoint )
+{
+ if( anchorPoint != mItemsAnchorPoint )
+ {
+ mItemsAnchorPoint = anchorPoint;
+ for (ItemPoolIter iter = mItemPool.begin(); iter != mItemPool.end(); ++iter)
+ {
+ iter->second.SetAnchorPoint(anchorPoint);
+ }
+ }
+}
+
+Vector3 ItemView::GetItemsAnchorPoint() const
+{
+ return mItemsAnchorPoint;
+}
+
+void ItemView::GetItemsRange(ItemRange& range)
+{
+ if( !mItemPool.empty() )
+ {
+ range.begin = mItemPool.begin()->first;
+ range.end = mItemPool.rbegin()->first + 1;
+ }
+ else
+ {
+ range.begin = 0;
+ range.end = 0;
+ }
+}
+
+bool ItemView::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
+{
+ Dali::BaseHandle handle( object );
+
+ bool connected( true );
+ Toolkit::ItemView itemView = Toolkit::ItemView::DownCast( handle );
+
+ if( 0 == strcmp( signalName.c_str(), LAYOUT_ACTIVATED_SIGNAL ) )
+ {
+ itemView.LayoutActivatedSignal().Connect( tracker, functor );
+ }
+ else
+ {
+ // signalName does not match any signal
+ connected = false;
+ }
- mAnimatingOvershootOn = animatingOn;
+ return connected;
}
} // namespace Internal
projects / platform / core / uifw / dali-toolkit.git / blobdiff