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>
25 #include <dali/devel-api/rendering/cull-face.h>
28 #include <dali-toolkit/internal/controls/page-turn-view/page-turn-effect.h>
43 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::PageTurnPortraitView, Toolkit::PageTurnView, NULL )
44 DALI_TYPE_REGISTRATION_END()
46 // 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
47 const float GESTURE_SPEED_THRESHOLD(0.3f);
49 // the animation duration of turning the previous page back when an outwards flick is detected
50 const float PAGE_TURN_OVER_ANIMATION_DURATION(0.5f);
54 PageTurnPortraitView::PageTurnPortraitView( PageFactory& pageFactory, const Vector2& pageSize )
55 : PageTurnView( pageFactory, pageSize )
60 PageTurnPortraitView::~PageTurnPortraitView()
64 Toolkit::PageTurnPortraitView PageTurnPortraitView::New( PageFactory& pageFactory, const Vector2& pageSize )
66 // Create the implementation, temporarily owned on stack
67 IntrusivePtr< PageTurnPortraitView > internalPageTurnView = new PageTurnPortraitView( pageFactory, pageSize );
69 // Pass ownership to CustomActor
70 Dali::Toolkit::PageTurnPortraitView pageTurnView( *internalPageTurnView );
72 // Second-phase init of the implementation
73 // This can only be done after the CustomActor connection has been made...
74 internalPageTurnView->Initialize();
79 void PageTurnPortraitView::OnPageTurnViewInitialize()
81 mControlSize = mPageSize;
82 Self().SetSize( mPageSize );
83 mTurningPageLayer.SetParentOrigin( ParentOrigin::CENTER_LEFT );
86 ImageActor PageTurnPortraitView::NewPageFromRenderBuffer( int pageIndex )
88 return ImageActor::New(mRenderedPage[pageIndex % NUMBER_OF_CACHED_PAGES]);
91 Vector2 PageTurnPortraitView::SetPanPosition( const Vector2& gesturePosition )
93 return gesturePosition;
96 void PageTurnPortraitView::SetPanActor( const Vector2& panPosition )
98 if( mCurrentPageIndex < mTotalPageCount )
100 mPanActor = mPageActors[mCurrentPageIndex%NUMBER_OF_CACHED_PAGES];
108 void PageTurnPortraitView::SetSpineEffect(ImageActor actor, bool isLeftSide)
112 actor.RemoveShaderEffect();
116 actor.SetShaderEffect( mSpineEffectFront );
120 void PageTurnPortraitView::OnPossibleOutwardsFlick( const Vector2& panPosition, float gestureSpeed )
122 Vector2 offset = panPosition - mPressDownPosition;
123 // There is previous page and an outwards flick is detected
124 if( mCurrentPageIndex > 0 && gestureSpeed > GESTURE_SPEED_THRESHOLD && offset.x > fabs( offset.y ))
126 ImageActor actor = mPageActors[ (mCurrentPageIndex-1) % NUMBER_OF_CACHED_PAGES ];
127 if(actor.GetParent() != mRootOnScreen)
132 // Guard against destruction during signal emission
133 //Emit signal, to notify that page[mCurrentPageIndex-1] is turning backwards
134 Toolkit::PageTurnView handle( GetOwner() );
135 mPageTurnStartedSignal.Emit( handle, static_cast<unsigned int>(mCurrentPageIndex-1), false );
139 RemovePage( mCurrentPageIndex+NUMBER_OF_CACHED_PAGES_EACH_SIDE );
140 AddPage( mCurrentPageIndex-NUMBER_OF_CACHED_PAGES_EACH_SIDE );
143 // Add the page to tuning page layer and set up PageTurnEffect
144 mShadowView.Add( actor );
145 actor.SetShaderEffect( mTurnEffect[mIndex] );
146 PageTurnApplyInternalConstraint(mTurnEffect[mIndex]);
147 mIsAnimating[mIndex] = true;
148 mTurnEffect[mIndex].SetUniform("uIsTurningBack", 1.f );
149 Vector2 originalCenter( mPageSize.width*1.5f, 0.5f*mPageSize.height );
150 mTurnEffect[mIndex].SetUniform("uOriginalCenter", originalCenter );
151 mTurnEffect[mIndex].SetUniform("uCurrentCenter", Vector2( mPageSize.width*0.5f, mPageSize.height*0.5f ) );
153 // Start an animation to turn the previous page back
154 Animation animation = Animation::New( PAGE_TURN_OVER_ANIMATION_DURATION );
155 mAnimationActorPair[animation] = actor;
156 mAnimationIndexPair[animation] = mIndex;
158 animation.AnimateTo( Property( mTurnEffect[mIndex], "uCurrentCenter" ),
160 AlphaFunction::EASE_OUT, TimePeriod(PAGE_TURN_OVER_ANIMATION_DURATION*0.75f) );
161 animation.AnimateBy( Property( actor, Actor::Property::ORIENTATION ), AngleAxis( Degree( 180.0f ), Vector3::YAXIS ) ,AlphaFunction::EASE_OUT );
164 ImageActor imageActor = ImageActor::DownCast(actor);
167 SetCullFace( imageActor, CullBack );
169 animation.FinishedSignal().Connect( this, &PageTurnPortraitView::OnTurnedOver );
173 void PageTurnPortraitView::OnTurnedOver( Animation& animation )
175 ImageActor imageActor = ImageActor::DownCast( mAnimationActorPair[ animation ] );
178 SetCullFace( imageActor, CullNone );
180 TurnedOver( animation );
183 } // namespace Internal
185 } // namespace Toolkit