2 * Copyright (c) 2020 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.
17 #include <dali-toolkit/dali-toolkit.h>
18 #include <dali/integration-api/adaptor-framework/adaptor.h>
19 #include <dali/devel-api/adaptor-framework/application-devel.h>
20 #include <dali-toolkit/devel-api/controls/control-devel.h>
22 using namespace Dali::Toolkit;
26 const char* SCENE_IMAGE_1( DEMO_IMAGE_DIR "gallery-small-10.jpg");
27 const char* SCENE_IMAGE_2( DEMO_IMAGE_DIR "gallery-small-42.jpg");
28 const char* SCENE_IMAGE_3( DEMO_IMAGE_DIR "gallery-small-48.jpg");
29 const char* ROTATE_TEXT("-\\|/");
30 const float TEXT_HEIGHT = 40.0f;
32 void AddText( Control textContainer, std::string text, unsigned int yIndex )
34 auto label = TextLabel::New(text);
35 label.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER );
36 label.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT );
37 label.SetProperty( Actor::Property::SIZE, Vector2( 300,TEXT_HEIGHT ) );
38 label.SetProperty( Actor::Property::POSITION_Y, yIndex*TEXT_HEIGHT );
39 textContainer.Add( label );
42 class PreRenderCallbackController : public ConnectionTracker
48 * @param[in] application The application.
50 PreRenderCallbackController ( Application& application )
51 : mApplication( application ),
54 mKeepPreRender(false),
55 mRotateTextCharacter(0),
60 mAngle1Index( Property::INVALID_INDEX ),
61 mAngle3Index( Property::INVALID_INDEX ),
66 // Connect to the Application's Init signal
67 mApplication.InitSignal().Connect( this, &PreRenderCallbackController::Create );
71 struct RotationConstraint
73 RotationConstraint(float sign)
78 void operator()( Quaternion& current, const PropertyInputContainer& inputs )
80 Radian angle( inputs[0]->GetFloat() );
81 current = Quaternion( angle * mSign, Vector3::YAXIS );
88 * @brief Creates the scene.
90 void Create( Application& application )
92 mStage = Stage::GetCurrent();
93 mStage.SetBackgroundColor( Color::WHITE );
94 mStage.KeyEventSignal().Connect( this, &PreRenderCallbackController::OnKeyEvent );
96 // Detect taps on the root layer.
97 mTapDetector = TapGestureDetector::New();
98 mTapDetector.Attach( mStage.GetRootLayer() );
99 mTapDetector.DetectedSignal().Connect( this, &PreRenderCallbackController::OnTap );
101 CreateAnimatingScene();
103 auto textContainer = Control::New();
104 textContainer.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_LEFT);
105 AddText(textContainer, "Click to add callback", 1 );
106 AddText(textContainer, "Press 1 to add callback", 2 );
107 AddText(textContainer, "Press 2 to clear callback", 3 );
108 AddText(textContainer, "Press 3 to toggle keep alive", 4 );
111 mSpinner = TextLabel::New("");
112 mSpinner.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT );
113 mSpinner.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT );
114 mSpinner.SetProperty( Actor::Property::SIZE, Vector2(100,100) );
116 mStage.Add(mSpinner);
117 mStage.Add(textContainer);
119 DevelApplication::AddIdleWithReturnValue( application, MakeCallback( this, &PreRenderCallbackController::OnIdle ) );
122 void CreateAnimatingScene()
124 mSceneActor = Layer::New();
125 mSceneActor.SetProperty( Layer::Property::BEHAVIOR, Layer::LAYER_3D );
126 mSceneActor.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
128 // Create and add images to the scene actor:
129 mImageActor1 = ImageView::New( SCENE_IMAGE_1 );
130 mImageActor2 = ImageView::New( SCENE_IMAGE_2 );
131 mImageActor3 = ImageView::New( SCENE_IMAGE_3 );
133 mImageActor1.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::ALL_DIMENSIONS );
134 mImageActor2.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::ALL_DIMENSIONS );
135 mImageActor3.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::ALL_DIMENSIONS );
137 mImageActor2.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
139 mImageActor1.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER_LEFT);
140 mImageActor1.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER_RIGHT);
142 mImageActor3.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER_RIGHT);
143 mImageActor3.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER_LEFT);
145 mSceneActor.Add(mImageActor2);
146 mImageActor2.Add(mImageActor1);
147 mImageActor2.Add(mImageActor3);
149 Property::Index angleIndex = mImageActor2.RegisterProperty("angle", Property::Value( Dali::ANGLE_30 ) );
150 Source angleSrc( mImageActor2, angleIndex );
152 Constraint constraint = Constraint::New<Quaternion>( mImageActor1, Actor::Property::ORIENTATION, RotationConstraint(-1.0f) );
153 constraint.AddSource( angleSrc );
156 constraint = Constraint::New<Quaternion>( mImageActor3, Actor::Property::ORIENTATION, RotationConstraint(+1.0f) );
157 constraint.AddSource( angleSrc );
160 mSceneAnimation = Animation::New(2.5f);
162 // Want to animate angle from 30 => -30 and back again smoothly.
163 mSceneAnimation.AnimateTo( Property( mImageActor2, angleIndex ), Property::Value(-Dali::ANGLE_30), AlphaFunction::SIN );
165 mSceneAnimation.SetLooping(true);
166 mSceneAnimation.Play();
168 mSceneActor.SetProperty( Actor::Property::SIZE, Vector2(250.0f, 250.0f) );
169 mSceneActor.SetProperty( Actor::Property::POSITION, Vector3( 0.0f, 0.0f, 130.0f ) );
170 Quaternion p( Degree( -6.0f ), Vector3::XAXIS );
171 Quaternion q( Degree( 20.0f ), Vector3::YAXIS );
172 mSceneActor.SetProperty( Actor::Property::ORIENTATION, p * q );
174 mStage.Add( mSceneActor );
177 void OnTap( Actor /* actor */, const TapGesture& /* tap */ )
179 Adaptor::Get().SetPreRenderCallback( MakeCallback( this, &PreRenderCallbackController::OnPreRender ) );
183 * @brief Called when any key event is received
185 * Will use this to quit the application if Back or the Escape key is received
186 * @param[in] event The key event information
188 void OnKeyEvent( const KeyEvent& event )
190 if( event.state == KeyEvent::Down )
192 if ( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
196 else if( event.keyPressedName.compare("1") == 0)
198 Adaptor::Get().SetPreRenderCallback( MakeCallback( this, &PreRenderCallbackController::OnPreRender ) );
200 else if( event.keyPressedName.compare("2") == 0)
202 Adaptor::Get().SetPreRenderCallback( NULL );
204 else if( event.keyPressedName.compare("3") == 0)
206 mKeepPreRender = !mKeepPreRender;
213 // Called from Update/Render thread
214 printf("Pre-render callback\n");
215 ++mRotateTextCharacter;
216 return mKeepPreRender;
221 // Called from Event thread on main loop
222 int rotation = mRotateTextCharacter;
223 if( rotation != mLastRTC )
226 mSpinner.SetProperty(TextLabel::Property::TEXT, std::string(1, ROTATE_TEXT[rotation%4]));
233 Application& mApplication;
235 TapGestureDetector mTapDetector; ///< Tap detector to enable the PreRenderCallback
237 int mRotateTextCharacter;
241 ImageView mImageActor1;
242 ImageView mImageActor2;
243 ImageView mImageActor3;
244 Property::Index mAngle1Index;
245 Property::Index mAngle3Index;
247 Animation mSceneAnimation;
253 int DALI_EXPORT_API main( int argc, char **argv )
255 Dali::Application application = Dali::Application::New( &argc, &argv );
256 Dali::PreRenderCallbackController controller( application );
257 application.MainLoop();