2 * Copyright (c) 2017 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.
22 #include "shared/view.h"
24 #include <dali/dali.h>
25 #include <dali-toolkit/dali-toolkit.h>
26 #include <dali-toolkit/devel-api/controls/buttons/button-devel.h>
27 #include <dali-toolkit/devel-api/shader-effects/dissolve-effect.h>
31 using Dali::Toolkit::TextLabel;
37 const char * const TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
38 const char * const APPLICATION_TITLE_HIGHP( "Dissolve Effect(highp)" );
39 const char * const APPLICATION_TITLE_MEDIUMP( "Dissolve Effect(mediump)" );
40 const char * const EFFECT_HIGHP_IMAGE( DEMO_IMAGE_DIR "icon-highp.png" );
41 const char * const EFFECT_HIGHP_IMAGE_SELECTED( DEMO_IMAGE_DIR "icon-highp-selected.png" );
42 const char * const EFFECT_MEDIUMP_IMAGE( DEMO_IMAGE_DIR "icon-mediump.png" );
43 const char * const EFFECT_MEDIUMP_IMAGE_SELECTED( DEMO_IMAGE_DIR "icon-mediump-selected.png" );
44 const char * const PLAY_ICON( DEMO_IMAGE_DIR "icon-play.png" );
45 const char * const PLAY_ICON_SELECTED( DEMO_IMAGE_DIR "icon-play-selected.png" );
46 const char * const STOP_ICON( DEMO_IMAGE_DIR "icon-stop.png" );
47 const char * const STOP_ICON_SELECTED( DEMO_IMAGE_DIR "icon-stop-selected.png" );
49 const char* IMAGES[] =
51 DEMO_IMAGE_DIR "gallery-large-1.jpg",
52 DEMO_IMAGE_DIR "gallery-large-2.jpg",
53 DEMO_IMAGE_DIR "gallery-large-3.jpg",
54 DEMO_IMAGE_DIR "gallery-large-4.jpg",
55 DEMO_IMAGE_DIR "gallery-large-5.jpg",
56 DEMO_IMAGE_DIR "gallery-large-6.jpg",
57 DEMO_IMAGE_DIR "gallery-large-7.jpg",
58 DEMO_IMAGE_DIR "gallery-large-8.jpg",
59 DEMO_IMAGE_DIR "gallery-large-9.jpg",
60 DEMO_IMAGE_DIR "gallery-large-10.jpg",
61 DEMO_IMAGE_DIR "gallery-large-11.jpg",
62 DEMO_IMAGE_DIR "gallery-large-12.jpg",
63 DEMO_IMAGE_DIR "gallery-large-13.jpg",
64 DEMO_IMAGE_DIR "gallery-large-14.jpg",
65 DEMO_IMAGE_DIR "gallery-large-15.jpg",
66 DEMO_IMAGE_DIR "gallery-large-16.jpg",
67 DEMO_IMAGE_DIR "gallery-large-17.jpg",
68 DEMO_IMAGE_DIR "gallery-large-18.jpg",
69 DEMO_IMAGE_DIR "gallery-large-19.jpg",
70 DEMO_IMAGE_DIR "gallery-large-20.jpg",
71 DEMO_IMAGE_DIR "gallery-large-21.jpg",
74 const int NUM_IMAGES( sizeof(IMAGES) / sizeof(IMAGES[0]) );
76 // The duration of the current image staying on screen when slideshow is on
77 const int VIEWINGTIME = 2000; // 2 seconds
79 const float TRANSITION_DURATION = 2.5f; //2.5 second
81 const float INITIAL_DEPTH = 10.0f;
84 * @brief Create an image view with an image which would be scaled-down to no more than the stage dimensions.
86 * Uses image scaling mode SCALE_TO_FILL to resize the image at
87 * load time to cover the entire stage with pixels with no borders,
88 * and filter mode BOX_THEN_LINEAR to sample the image with maximum quality.
90 Toolkit::ImageView CreateStageFillingImageView( const char * const imagePath )
92 Size stageSize = Stage::GetCurrent().GetSize();
93 Toolkit::ImageView imageView = Toolkit::ImageView::New();
95 map[Toolkit::Visual::Property::TYPE] = Toolkit::Visual::IMAGE;
96 map[Toolkit::ImageVisual::Property::URL] = imagePath;
97 map[Toolkit::ImageVisual::Property::DESIRED_WIDTH] = stageSize.x;
98 map[Toolkit::ImageVisual::Property::DESIRED_HEIGHT] = stageSize.y;
99 map[Toolkit::ImageVisual::Property::FITTING_MODE] = FittingMode::SCALE_TO_FILL;
100 map[Toolkit::ImageVisual::Property::SAMPLING_MODE] = SamplingMode::BOX_THEN_LINEAR;
101 map[Toolkit::ImageVisual::Property::SYNCHRONOUS_LOADING] = true;
102 imageView.SetProperty( Toolkit::ImageView::Property::IMAGE, map );
109 class DissolveEffectApp : public ConnectionTracker
115 * @param application class, stored as reference
117 DissolveEffectApp( Application& application );
119 ~DissolveEffectApp();
124 * This method gets called once the main loop of application is up and running
126 void OnInit( Application& application );
128 * PanGesture callback. This method gets called when the pan gesture is detected.
129 * @param[in] actor The actor receiving the pan gesture.
130 * @param[in] gesture The detected pan gesture.
132 void OnPanGesture( Actor actor, const PanGesture& gesture );
135 * Set up the animations for transition
136 * @param[in] position The point ( locates within rectange {(0,0),(0,1),(1,0),(1,1)} ) passing through the central line of the dissolve effect
137 * @param[in] displacement The direction of the central line of the dissolve effect
139 void StartTransition(Vector2 position, Vector2 displacement);
141 * Callback function of effect-switch button
142 * Change the precision of the effect shader when the effect button is clicked
143 * @param[in] button The handle of the clicked button
145 bool OnEffectButtonClicked( Toolkit::Button button );
147 * Callback function of slideshow button
148 * Start or stop the automatical image display when the slideshow button is clicked
149 * @param[in] button The handle of the clicked button
151 bool OnSildeshowButtonClicked( Toolkit::Button button );
153 * Callback function of cube transition completed signal
154 * @param[in] effect The cube effect used for the transition
155 * @param[in] imageActor The target imageActor of the completed transition
157 void OnTransitionCompleted(Animation& source);
159 * Callback function of timer tick
160 * The timer is used to count the image display duration after cube transition in slideshow,
165 * Main key event handler
167 void OnKeyEvent(const KeyEvent& event);
170 Application& mApplication;
171 Toolkit::Control mView;
172 Toolkit::ToolBar mToolBar;
174 Toolkit::TextLabel mTitleActor;
177 Toolkit::ImageView mCurrentImage;
178 Toolkit::ImageView mNextImage;
181 Property::Map mDissolveEffect;
182 Property::Map mEmptyEffect;
184 bool mUseHighPrecision;
185 Animation mAnimation;
187 PanGestureDetector mPanGestureDetector;
193 unsigned int mCentralLineIndex;
195 Toolkit::PushButton mPlayStopButton;
196 Toolkit::PushButton mEffectChangeButton;
199 DissolveEffectApp::DissolveEffectApp( Application& application )
200 : mApplication( application ),
202 mUseHighPrecision(true),
203 mIsTransiting( false ),
205 mTimerReady( false ),
206 mCentralLineIndex( 0 )
208 mApplication.InitSignal().Connect( this, &DissolveEffectApp::OnInit );
211 DissolveEffectApp::~DissolveEffectApp()
216 void DissolveEffectApp::OnInit( Application& application )
218 Stage::GetCurrent().KeyEventSignal().Connect(this, &DissolveEffectApp::OnKeyEvent);
220 // Creates a default view with a default tool bar, the view is added to the stage.
221 mContent = DemoHelper::CreateView( application, mView,mToolBar, "", TOOLBAR_IMAGE, "" );
223 // Add an effect-changing button on the right of the tool bar.
224 mEffectChangeButton = Toolkit::PushButton::New();
225 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, EFFECT_HIGHP_IMAGE );
226 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, EFFECT_HIGHP_IMAGE_SELECTED );
227 mEffectChangeButton.ClickedSignal().Connect( this, &DissolveEffectApp::OnEffectButtonClicked );
228 mToolBar.AddControl( mEffectChangeButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
230 // Add title to the tool bar.
231 mTitleActor = DemoHelper::CreateToolBarLabel( APPLICATION_TITLE_HIGHP );
232 mToolBar.AddControl( mTitleActor, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarTitlePercentage, Toolkit::Alignment::HorizontalCenter );
234 // Add an slide-show button on the right of the title
235 mPlayStopButton = Toolkit::PushButton::New();
236 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, PLAY_ICON );
237 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, PLAY_ICON_SELECTED );
238 mPlayStopButton.ClickedSignal().Connect( this, &DissolveEffectApp::OnSildeshowButtonClicked );
239 mToolBar.AddControl( mPlayStopButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalCenter, DemoHelper::DEFAULT_PLAY_PADDING );
241 // use pan gesture to detect the cursor or finger movement
242 mPanGestureDetector = PanGestureDetector::New();
243 mPanGestureDetector.DetectedSignal().Connect( this, &DissolveEffectApp::OnPanGesture );
245 mViewTimer = Timer::New( VIEWINGTIME );
246 mViewTimer.TickSignal().Connect( this, &DissolveEffectApp::OnTimerTick );
249 // Set size to stage size to avoid seeing a black border on transition
250 mParent = Actor::New();
251 mParent.SetSize( Stage::GetCurrent().GetSize() );
252 mParent.SetParentOrigin( ParentOrigin::CENTER );
253 mContent.Add( mParent );
255 // show the first image
256 mCurrentImage = CreateStageFillingImageView( IMAGES[mIndex] );
257 mCurrentImage.SetParentOrigin( ParentOrigin::CENTER );
258 mCurrentImage.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
259 mCurrentImage.SetSizeScalePolicy( SizeScalePolicy::FIT_WITH_ASPECT_RATIO );
260 mParent.Add( mCurrentImage );
262 mPanGestureDetector.Attach( mCurrentImage );
264 mDissolveEffect = Dali::Toolkit::CreateDissolveEffect( mUseHighPrecision );
265 Property::Map emptyShaderMap;
266 mEmptyEffect.Insert( "shader", emptyShaderMap );
269 // signal handler, called when the pan gesture is detected
270 void DissolveEffectApp::OnPanGesture( Actor actor, const PanGesture& gesture )
272 // does not response when the animation has not finished
273 if( mIsTransiting || mSlideshow )
278 if( gesture.state == Gesture::Continuing )
280 if( gesture.displacement.x < 0)
282 mIndex = (mIndex + 1)%NUM_IMAGES;
286 mIndex = (mIndex + NUM_IMAGES -1)%NUM_IMAGES;
289 mNextImage = CreateStageFillingImageView( IMAGES[ mIndex ] );
290 mNextImage.SetParentOrigin( ParentOrigin::CENTER );
291 mNextImage.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
292 mNextImage.SetSizeScalePolicy( SizeScalePolicy::FIT_WITH_ASPECT_RATIO );
293 mNextImage.SetZ(INITIAL_DEPTH);
294 mParent.Add( mNextImage );
295 Vector2 size = Vector2( mCurrentImage.GetCurrentSize() );
296 StartTransition( gesture.position / size, gesture.displacement * Vector2(1.0, size.x/size.y));
300 void DissolveEffectApp::StartTransition(Vector2 position, Vector2 displacement)
302 mAnimation = Animation::New(TRANSITION_DURATION);
304 Dali::Toolkit::DissolveEffectSetCentralLine( mCurrentImage, position, displacement, 0.0f );
305 mCurrentImage.SetProperty( Toolkit::ImageView::Property::IMAGE, mDissolveEffect );
306 mAnimation.AnimateTo( Property( mCurrentImage, "uPercentage" ), 1.0f, AlphaFunction::LINEAR );
308 mNextImage.SetOpacity(0.0f);
309 mAnimation.AnimateTo( Property( mNextImage, Actor::Property::COLOR_ALPHA ), 1.0f, AlphaFunction::LINEAR );
311 if(mUseHighPrecision)
313 Dali::Toolkit::DissolveEffectSetCentralLine( mNextImage, position, displacement, 1.0f );
314 mNextImage.SetProperty( Toolkit::ImageView::Property::IMAGE, mDissolveEffect );
315 mAnimation.AnimateTo( Property( mNextImage, "uPercentage" ), 0.0f, AlphaFunction::LINEAR );
319 mAnimation.AnimateTo( Property( mNextImage, Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), AlphaFunction::LINEAR );
322 mAnimation.FinishedSignal().Connect( this, &DissolveEffectApp::OnTransitionCompleted );
324 mIsTransiting = true;
327 void DissolveEffectApp::OnKeyEvent(const KeyEvent& event)
329 if(event.state == KeyEvent::Down)
331 if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
338 bool DissolveEffectApp::OnEffectButtonClicked( Toolkit::Button button )
340 mUseHighPrecision = !mUseHighPrecision;
341 mDissolveEffect = Dali::Toolkit::CreateDissolveEffect(mUseHighPrecision);
342 if(mUseHighPrecision)
344 mTitleActor.SetProperty( TextLabel::Property::TEXT, std::string(APPLICATION_TITLE_HIGHP) );
345 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, EFFECT_HIGHP_IMAGE );
346 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, EFFECT_HIGHP_IMAGE_SELECTED );
350 mTitleActor.SetProperty( TextLabel::Property::TEXT, std::string(APPLICATION_TITLE_MEDIUMP) );
351 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, EFFECT_MEDIUMP_IMAGE );
352 mEffectChangeButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, EFFECT_MEDIUMP_IMAGE_SELECTED );
358 bool DissolveEffectApp::OnSildeshowButtonClicked( Toolkit::Button button )
360 mSlideshow = !mSlideshow;
363 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, STOP_ICON );
364 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, STOP_ICON_SELECTED );
365 mPanGestureDetector.Detach( mParent );
371 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, PLAY_ICON );
372 mPlayStopButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, PLAY_ICON_SELECTED );
374 mPanGestureDetector.Attach( mParent );
379 void DissolveEffectApp::OnTransitionCompleted( Animation& source )
381 if(mUseHighPrecision)
383 mNextImage.SetProperty( Toolkit::ImageView::Property::IMAGE, mEmptyEffect );
385 mParent.Remove( mCurrentImage );
386 mPanGestureDetector.Detach( mCurrentImage );
387 mCurrentImage = mNextImage;
388 mPanGestureDetector.Attach( mCurrentImage );
389 mIsTransiting = false;
398 bool DissolveEffectApp::OnTimerTick()
403 mIndex = (mIndex + 1)%NUM_IMAGES;
404 mNextImage = CreateStageFillingImageView( IMAGES[ mIndex ] );
405 mNextImage.SetParentOrigin( ParentOrigin::CENTER );
406 mNextImage.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
407 mNextImage.SetSizeScalePolicy( SizeScalePolicy::FIT_WITH_ASPECT_RATIO );
408 mNextImage.SetZ(INITIAL_DEPTH);
409 mParent.Add( mNextImage );
410 switch( mCentralLineIndex%4 )
414 StartTransition(Vector2(1.0f,0.5f), Vector2(-1.0f, 0.0f));
419 StartTransition(Vector2(0.5f,0.0f), Vector2(0.0f, 1.0f));
424 StartTransition(Vector2(0.0f,0.5f), Vector2(1.0f, 0.0f));
429 StartTransition(Vector2(0.5f,1.0f), Vector2(0.0f, -1.0f));
436 return false; //return false to stop the timer
439 int DALI_EXPORT_API main( int argc, char **argv )
441 Application application = Application::New( &argc, &argv, DEMO_THEME_PATH );
442 DissolveEffectApp test( application );
443 application.MainLoop();