2 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali-toolkit/internal/controls/page-turn-view/page-turn-portrait-view-impl.h>
22 #include <dali/public-api/animation/animation.h>
23 #include <dali/public-api/object/type-registry.h>
24 #include <dali/devel-api/object/type-registry-helper.h>
27 #include <dali-toolkit/internal/controls/page-turn-view/page-turn-effect.h>
42 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::PageTurnPortraitView, Toolkit::PageTurnView, NULL )
43 DALI_TYPE_REGISTRATION_END()
45 // the panning speed threshold, no matter how far is the pan displacement, pan fast to left/right quickly (speed > 0.3) will turn over/back the page
46 const float GESTURE_SPEED_THRESHOLD(0.3f);
48 // the animation duration of turning the previous page back when an outwards flick is detected
49 const float PAGE_TURN_OVER_ANIMATION_DURATION(0.5f);
53 PageTurnPortraitView::PageTurnPortraitView( PageFactory& pageFactory, const Vector2& pageSize )
54 : PageTurnView( pageFactory, pageSize )
59 PageTurnPortraitView::~PageTurnPortraitView()
63 Toolkit::PageTurnPortraitView PageTurnPortraitView::New( PageFactory& pageFactory, const Vector2& pageSize )
65 // Create the implementation, temporarily owned on stack
66 IntrusivePtr< PageTurnPortraitView > internalPageTurnView = new PageTurnPortraitView( pageFactory, pageSize );
68 // Pass ownership to CustomActor
69 Dali::Toolkit::PageTurnPortraitView pageTurnView( *internalPageTurnView );
71 // Second-phase init of the implementation
72 // This can only be done after the CustomActor connection has been made...
73 internalPageTurnView->Initialize();
78 void PageTurnPortraitView::OnPageTurnViewInitialize()
80 mControlSize = mPageSize;
81 Self().SetSize( mPageSize );
82 mTurningPageLayer.SetParentOrigin( ParentOrigin::CENTER_LEFT );
85 ImageActor PageTurnPortraitView::NewPageFromRenderBuffer( int pageIndex )
87 return ImageActor::New(mRenderedPage[pageIndex % NUMBER_OF_CACHED_PAGES]);
90 Vector2 PageTurnPortraitView::SetPanPosition( const Vector2& gesturePosition )
92 return gesturePosition;
95 void PageTurnPortraitView::SetPanActor( const Vector2& panPosition )
97 if( mCurrentPageIndex < mTotalPageCount )
99 mPanActor = mPageActors[mCurrentPageIndex%NUMBER_OF_CACHED_PAGES];
107 void PageTurnPortraitView::SetSpineEffect(ImageActor actor, bool isLeftSide)
111 actor.RemoveShaderEffect();
115 actor.SetShaderEffect( mSpineEffectFront );
119 void PageTurnPortraitView::OnPossibleOutwardsFlick( const Vector2& panPosition, float gestureSpeed )
121 Vector2 offset = panPosition - mPressDownPosition;
122 // There is previous page and an outwards flick is detected
123 if( mCurrentPageIndex > 0 && gestureSpeed > GESTURE_SPEED_THRESHOLD && offset.x > fabs( offset.y ))
125 ImageActor actor = mPageActors[ (mCurrentPageIndex-1) % NUMBER_OF_CACHED_PAGES ];
126 if(actor.GetParent() != mRootOnScreen)
131 // Guard against destruction during signal emission
132 //Emit signal, to notify that page[mCurrentPageIndex-1] is turning backwards
133 Toolkit::PageTurnView handle( GetOwner() );
134 mPageTurnStartedSignal.Emit( handle, static_cast<unsigned int>(mCurrentPageIndex-1), false );
138 RemovePage( mCurrentPageIndex+NUMBER_OF_CACHED_PAGES_EACH_SIDE );
139 AddPage( mCurrentPageIndex-NUMBER_OF_CACHED_PAGES_EACH_SIDE );
142 // Add the page to tuning page layer and set up PageTurnEffect
143 mShadowView.Add( actor );
144 actor.SetShaderEffect( mTurnEffect[mIndex] );
145 PageTurnApplyInternalConstraint(mTurnEffect[mIndex]);
146 mIsAnimating[mIndex] = true;
147 mTurnEffect[mIndex].SetUniform("uIsTurningBack", true );
148 Vector2 originalCenter( mPageSize.width*1.5f, 0.5f*mPageSize.height );
149 mTurnEffect[mIndex].SetUniform("uOriginalCenter", originalCenter );
150 mTurnEffect[mIndex].SetUniform("uCurrentCenter", Vector2( mPageSize.width*0.5f, mPageSize.height*0.5f ) );
152 // Start an animation to turn the previous page back
153 Animation animation = Animation::New( PAGE_TURN_OVER_ANIMATION_DURATION );
154 mAnimationActorPair[animation] = actor;
155 mAnimationIndexPair[animation] = mIndex;
157 animation.AnimateTo( Property( mTurnEffect[mIndex], "uCurrentCenter" ),
159 AlphaFunction::EASE_OUT, TimePeriod(PAGE_TURN_OVER_ANIMATION_DURATION*0.75f) );
160 animation.AnimateBy( Property( actor, Actor::Property::ORIENTATION ), AngleAxis( Degree( 180.0f ), Vector3::YAXIS ) ,AlphaFunction::EASE_OUT );
162 ImageActor::DownCast(actor).SetCullFace( CullBack );
163 animation.FinishedSignal().Connect( this, &PageTurnPortraitView::OnTurnedOver );
167 void PageTurnPortraitView::OnTurnedOver( Animation& animation )
169 ImageActor::DownCast(mAnimationActorPair[animation]).SetCullFace( CullNone );
170 TurnedOver( animation );
173 } // namespace Internal
175 } // namespace Toolkit