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/public-api/object/type-registry-helper.h>
27 #include <dali-toolkit/internal/controls/page-turn-view/page-turn-effect.h>
40 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::PageTurnPortraitView, Toolkit::PageTurnView, NULL )
41 DALI_TYPE_REGISTRATION_END()
43 // 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
44 const float GESTURE_SPEED_THRESHOLD(0.3f);
46 // the animation duration of turning the previous page back when an outwards flick is detected
47 const float PAGE_TURN_OVER_ANIMATION_DURATION(0.5f);
51 PageTurnPortraitView::PageTurnPortraitView( PageFactory& pageFactory, const Vector2& pageSize )
52 : PageTurnView( pageFactory, pageSize )
56 PageTurnPortraitView::~PageTurnPortraitView()
60 Toolkit::PageTurnPortraitView PageTurnPortraitView::New( PageFactory& pageFactory, const Vector2& pageSize )
62 // Create the implementation, temporarily owned on stack
63 IntrusivePtr< PageTurnPortraitView > internalPageTurnView = new PageTurnPortraitView( pageFactory, pageSize );
65 // Pass ownership to CustomActor
66 Dali::Toolkit::PageTurnPortraitView pageTurnView( *internalPageTurnView );
68 // Second-phase init of the implementation
69 // This can only be done after the CustomActor connection has been made...
70 internalPageTurnView->Initialize();
75 void PageTurnPortraitView::OnPageTurnViewInitialize()
77 mTurnEffectShader.RegisterProperty(PROPERTY_TEXTURE_WIDTH, 1.f );
78 mSpineEffectShader.RegisterProperty(PROPERTY_TEXTURE_WIDTH, 1.f );
80 mControlSize = mPageSize;
81 Self().SetSize( mPageSize );
82 mTurningPageLayer.SetParentOrigin( ParentOrigin::CENTER_LEFT );
85 Vector2 PageTurnPortraitView::SetPanPosition( const Vector2& gesturePosition )
87 return gesturePosition;
90 void PageTurnPortraitView::SetPanActor( const Vector2& panPosition )
92 if( mCurrentPageIndex < mTotalPageCount )
94 mTurningPageIndex = mCurrentPageIndex;
98 mTurningPageIndex = -1;
102 void PageTurnPortraitView::OnPossibleOutwardsFlick( const Vector2& panPosition, float gestureSpeed )
104 Vector2 offset = panPosition - mPressDownPosition;
105 // There is previous page and an outwards flick is detected
106 if( mCurrentPageIndex > 0 && gestureSpeed > GESTURE_SPEED_THRESHOLD && offset.x > fabs( offset.y ))
108 int actorIndex = (mCurrentPageIndex-1) % NUMBER_OF_CACHED_PAGES;
109 Actor actor = mPages[ actorIndex ].actor;
110 if(actor.GetParent() != Self())
115 // Guard against destruction during signal emission
116 //Emit signal, to notify that page[mCurrentPageIndex-1] is turning backwards
117 Toolkit::PageTurnView handle( GetOwner() );
118 mTurningPageIndex = mCurrentPageIndex-1;
119 mPageTurnStartedSignal.Emit( handle, static_cast<unsigned int>(mTurningPageIndex), false );
123 RemovePage( mCurrentPageIndex+NUMBER_OF_CACHED_PAGES_EACH_SIDE );
124 AddPage( mCurrentPageIndex-NUMBER_OF_CACHED_PAGES_EACH_SIDE );
128 actor.SetVisible(true);
130 // Add the page to tuning page layer and set up PageTurnEffect
131 mShadowView.Add( actor );
132 mPages[actorIndex].UseEffect( mTurnEffectShader );
134 Vector2 originalCenter( mPageSize.width*1.5f, 0.5f*mPageSize.height );
135 mPages[actorIndex].SetOriginalCenter( originalCenter );
136 mPages[actorIndex].SetCurrentCenter( Vector2( mPageSize.width*0.5f, mPageSize.height*0.5f ) );
137 PageTurnApplyInternalConstraint(actor, mPageSize.height);
139 // Start an animation to turn the previous page back
140 Animation animation = Animation::New( PAGE_TURN_OVER_ANIMATION_DURATION );
141 mAnimationPageIdPair[animation] = mCurrentPageIndex;
143 animation.AnimateTo( Property( actor, mPages[actorIndex].propertyCurrentCenter ),
145 AlphaFunction::EASE_OUT, TimePeriod(PAGE_TURN_OVER_ANIMATION_DURATION*0.75f) );
146 animation.AnimateBy( Property( actor, Actor::Property::ORIENTATION ), AngleAxis( Degree( 180.0f ), Vector3::YAXIS ) ,AlphaFunction::EASE_OUT );
149 animation.FinishedSignal().Connect( this, &PageTurnPortraitView::TurnedOverBackwards );
153 void PageTurnPortraitView::OnTurnedOver( Actor actor, bool isLeftSide )
157 actor.SetVisible( false );
161 void PageTurnPortraitView::TurnedOverBackwards( Animation& animation )
163 TurnedOver( animation );
166 } // namespace Internal
168 } // namespace Toolkit