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.
22 #include "shared/view.h"
24 #include <dali/dali.h>
25 #include <dali-toolkit/dali-toolkit.h>
33 const char * const TOOLBAR_IMAGE( DALI_IMAGE_DIR "top-bar.png" );
34 const char * const APPLICATION_TITLE_HIGHP( "Dissolve Effect(highp)" );
35 const char * const APPLICATION_TITLE_MEDIUMP( "Dissolve Effect(mediump)" );
36 const char * const EFFECT_HIGHP_IMAGE( DALI_IMAGE_DIR "icon-highp.png" );
37 const char * const EFFECT_MEDIUMP_IMAGE( DALI_IMAGE_DIR "icon-mediump.png" );
38 const char * const PLAY_ICON( DALI_IMAGE_DIR "icon-play.png" );
39 const char * const STOP_ICON( DALI_IMAGE_DIR "icon-stop.png" );
41 const char* IMAGES[] =
43 DALI_IMAGE_DIR "gallery-large-1.jpg",
44 DALI_IMAGE_DIR "gallery-large-2.jpg",
45 DALI_IMAGE_DIR "gallery-large-3.jpg",
46 DALI_IMAGE_DIR "gallery-large-4.jpg",
47 DALI_IMAGE_DIR "gallery-large-5.jpg",
48 DALI_IMAGE_DIR "gallery-large-6.jpg",
49 DALI_IMAGE_DIR "gallery-large-7.jpg",
50 DALI_IMAGE_DIR "gallery-large-8.jpg",
51 DALI_IMAGE_DIR "gallery-large-9.jpg",
52 DALI_IMAGE_DIR "gallery-large-10.jpg",
53 DALI_IMAGE_DIR "gallery-large-11.jpg",
54 DALI_IMAGE_DIR "gallery-large-12.jpg",
55 DALI_IMAGE_DIR "gallery-large-13.jpg",
56 DALI_IMAGE_DIR "gallery-large-14.jpg",
57 DALI_IMAGE_DIR "gallery-large-15.jpg",
58 DALI_IMAGE_DIR "gallery-large-16.jpg",
59 DALI_IMAGE_DIR "gallery-large-17.jpg",
60 DALI_IMAGE_DIR "gallery-large-18.jpg",
61 DALI_IMAGE_DIR "gallery-large-19.jpg",
62 DALI_IMAGE_DIR "gallery-large-20.jpg",
63 DALI_IMAGE_DIR "gallery-large-21.jpg",
66 const int NUM_IMAGES( sizeof(IMAGES) / sizeof(IMAGES[0]) );
68 // The duration of the current image staying on screen when slideshow is on
69 const int VIEWINGTIME = 2000; // 2 seconds
71 const float TRANSITION_DURATION = 2.5f; //2.5 second
73 const float INITIAL_DEPTH = -10.0f;
76 * @brief Load an image, scaled-down to no more than the stage dimensions.
78 * Uses image scaling mode ImageAttributes::ScaleToFill to resize the image at
79 * load time to cover the entire stage with pixels with no borders,
80 * and filter mode ImageAttributes::BoxThenLinear to sample the image with
83 ResourceImage LoadStageFillingImage( const char * const imagePath )
85 Size stageSize = Stage::GetCurrent().GetSize();
86 ImageAttributes attributes;
87 attributes.SetSize( stageSize.x, stageSize.y );
88 attributes.SetFilterMode( ImageAttributes::BoxThenLinear );
89 attributes.SetScalingMode( ImageAttributes::ScaleToFill );
90 return ResourceImage::New( imagePath, attributes );
95 class DissolveEffectApp : public ConnectionTracker
101 * @param application class, stored as reference
103 DissolveEffectApp( Application& application );
105 ~DissolveEffectApp();
110 * This method gets called once the main loop of application is up and running
112 void OnInit( Application& application );
114 * PanGesture callback. This method gets called when the pan gesture is detected.
115 * @param[in] actor The actor receiving the pan gesture.
116 * @param[in] gesture The detected pan gesture.
118 void OnPanGesture( Actor actor, const PanGesture& gesture );
121 * Set up the animations for transition
122 * @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
123 * @param[in] displacement The direction of the central line of the dissolve effect
125 void StartTransition(Vector2 position, Vector2 displacement);
127 * Callback function of effect-switch button
128 * Change the precision of the effect shader when the effect button is clicked
129 * @param[in] button The handle of the clicked button
131 bool OnEffectButtonClicked( Toolkit::Button button );
133 * Callback function of slideshow button
134 * Start or stop the automatical image display when the slideshow button is clicked
135 * @param[in] button The handle of the clicked button
137 bool OnSildeshowButtonClicked( Toolkit::Button button );
139 * Callback function of cube transition completed signal
140 * @param[in] effect The cube effect used for the transition
141 * @param[in] imageActor The target imageActor of the completed transition
143 void OnTransitionCompleted(Animation& source);
145 * Callback function of timer tick
146 * The timer is used to count the image display duration after cube transition in slideshow,
151 * Main key event handler
153 void OnKeyEvent(const KeyEvent& event);
156 Application& mApplication;
158 Toolkit::ToolBar mToolBar;
160 Toolkit::TextView mTitleActor;
163 ImageActor mCurrentImage;
164 ImageActor mNextImage;
167 Toolkit::DissolveEffect mCurrentImageEffect;
168 Toolkit::DissolveEffect mNextImageEffect;
169 bool mUseHighPrecision;
170 Animation mAnimation;
172 PanGestureDetector mPanGestureDetector;
178 unsigned int mCentralLineIndex;
182 Toolkit::PushButton mPlayStopButton;
186 Toolkit::PushButton mEffectChangeButton;
189 DissolveEffectApp::DissolveEffectApp( Application& application )
190 : mApplication( application ),
192 mUseHighPrecision(true),
193 mIsTransiting( false ),
195 mTimerReady( false ),
196 mCentralLineIndex( 0 )
198 mApplication.InitSignal().Connect( this, &DissolveEffectApp::OnInit );
201 DissolveEffectApp::~DissolveEffectApp()
206 void DissolveEffectApp::OnInit( Application& application )
208 Stage::GetCurrent().KeyEventSignal().Connect(this, &DissolveEffectApp::OnKeyEvent);
210 // Creates a default view with a default tool bar, the view is added to the stage.
211 mContent = DemoHelper::CreateView( application, mView,mToolBar, "", TOOLBAR_IMAGE, "" );
213 // Add an effect-changing button on the right of the tool bar.
214 mIconHighP = ResourceImage::New( EFFECT_HIGHP_IMAGE );
215 mIconMediumP = ResourceImage::New( EFFECT_MEDIUMP_IMAGE );
216 mEffectChangeButton = Toolkit::PushButton::New();
217 mEffectChangeButton.SetBackgroundImage(mIconHighP);
218 mEffectChangeButton.ClickedSignal().Connect( this, &DissolveEffectApp::OnEffectButtonClicked );
219 mToolBar.AddControl( mEffectChangeButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
221 // Add title to the tool bar.
222 mTitleActor = Toolkit::TextView::New();
223 mTitleActor.SetText( APPLICATION_TITLE_HIGHP );
224 mTitleActor.SetStyleToCurrentText(DemoHelper::GetDefaultTextStyle());
225 mToolBar.AddControl( mTitleActor, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarTitlePercentage, Toolkit::Alignment::HorizontalCenter );
227 // Add an slide-show button on the right of the title
228 mIconPlay = ResourceImage::New( PLAY_ICON );
229 mIconStop = ResourceImage::New( STOP_ICON );
230 mPlayStopButton = Toolkit::PushButton::New();
231 mPlayStopButton.SetBackgroundImage( mIconPlay );
232 mPlayStopButton.ClickedSignal().Connect( this, &DissolveEffectApp::OnSildeshowButtonClicked );
233 mToolBar.AddControl( mPlayStopButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalCenter, DemoHelper::DEFAULT_PLAY_PADDING );
235 // use pan gesture to detect the cursor or finger movement
236 mPanGestureDetector = PanGestureDetector::New();
237 mPanGestureDetector.DetectedSignal().Connect( this, &DissolveEffectApp::OnPanGesture );
239 // create the dissolve effect object
240 mCurrentImageEffect = Toolkit::DissolveEffect::New(mUseHighPrecision);
241 mNextImageEffect = Toolkit::DissolveEffect::New(mUseHighPrecision);
243 mViewTimer = Timer::New( VIEWINGTIME );
244 mViewTimer.TickSignal().Connect( this, &DissolveEffectApp::OnTimerTick );
247 // Set size to stage size to avoid seeing a black border on transition
248 mParent = Actor::New();
249 mParent.SetSize( Stage::GetCurrent().GetSize() );
250 mParent.SetPositionInheritanceMode( USE_PARENT_POSITION );
251 mContent.Add( mParent );
253 // show the first image
254 mCurrentImage = ImageActor::New( LoadStageFillingImage( IMAGES[mIndex] ) );
255 mCurrentImage.SetRelayoutEnabled( false );
256 mCurrentImage.SetPositionInheritanceMode(USE_PARENT_POSITION_PLUS_LOCAL_POSITION);
257 mCurrentImage.SetResizePolicy( FILL_TO_PARENT, ALL_DIMENSIONS );
258 mCurrentImage.SetSizeScalePolicy( FIT_WITH_ASPECT_RATIO );
259 mParent.Add( mCurrentImage );
261 mPanGestureDetector.Attach( mCurrentImage );
264 // signal handler, called when the pan gesture is detected
265 void DissolveEffectApp::OnPanGesture( Actor actor, const PanGesture& gesture )
267 // does not response when the animation has not finished
268 if( mIsTransiting || mSlideshow )
273 if( gesture.state == Gesture::Continuing )
275 if( gesture.displacement.x < 0)
277 mIndex = (mIndex + 1)%NUM_IMAGES;
281 mIndex = (mIndex + NUM_IMAGES -1)%NUM_IMAGES;
284 Image image = LoadStageFillingImage( IMAGES[ mIndex ] );
285 mNextImage = ImageActor::New( image );
286 mNextImage.SetRelayoutEnabled( false );
287 mNextImage.SetPositionInheritanceMode(USE_PARENT_POSITION_PLUS_LOCAL_POSITION);
288 mNextImage.SetResizePolicy( FILL_TO_PARENT, ALL_DIMENSIONS );
289 mNextImage.SetSizeScalePolicy( FIT_WITH_ASPECT_RATIO );
290 mNextImage.SetZ(INITIAL_DEPTH);
291 mParent.Add( mNextImage );
292 Vector2 size = Vector2( mCurrentImage.GetCurrentSize() );
293 StartTransition( gesture.position / size, gesture.displacement * Vector2(1.0, size.x/size.y));
297 void DissolveEffectApp::StartTransition(Vector2 position, Vector2 displacement)
299 mAnimation = Animation::New(TRANSITION_DURATION);
301 mCurrentImageEffect.SetCentralLine(position,displacement);
302 mCurrentImageEffect.SetDistortion(0.0f);
303 mCurrentImage.SetShaderEffect(mCurrentImageEffect);
304 mAnimation.AnimateTo( Property(mCurrentImageEffect, mCurrentImageEffect.GetDistortionPropertyName()), 1.0f, AlphaFunctions::Linear );
306 mNextImage.SetOpacity(0.0f);
307 mAnimation.AnimateTo( Property( mNextImage, Actor::Property::COLOR_ALPHA ), 1.0f, AlphaFunctions::Linear );
309 if(mUseHighPrecision)
311 mNextImageEffect.SetCentralLine(position,-displacement);
312 mNextImageEffect.SetDistortion(1.0f);
313 mNextImage.SetShaderEffect(mNextImageEffect);
314 mAnimation.AnimateTo( Property(mNextImageEffect, mNextImageEffect.GetDistortionPropertyName()), 0.0f, AlphaFunctions::Linear );
318 mAnimation.AnimateTo( Property( mNextImage, Actor::Property::POSITION ), Vector3( 0.0f, 0.0f, 0.0f ), AlphaFunctions::Linear );
321 mAnimation.FinishedSignal().Connect( this, &DissolveEffectApp::OnTransitionCompleted );
323 mIsTransiting = true;
326 void DissolveEffectApp::OnKeyEvent(const KeyEvent& event)
328 if(event.state == KeyEvent::Down)
330 if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
337 bool DissolveEffectApp::OnEffectButtonClicked( Toolkit::Button button )
339 mUseHighPrecision = !mUseHighPrecision;
340 mCurrentImageEffect = Toolkit::DissolveEffect::New(mUseHighPrecision);
341 if(mUseHighPrecision)
343 mTitleActor.SetText( APPLICATION_TITLE_HIGHP );
344 mEffectChangeButton.SetBackgroundImage(mIconHighP);
348 mTitleActor.SetText( APPLICATION_TITLE_MEDIUMP );
349 mEffectChangeButton.SetBackgroundImage(mIconMediumP);
351 mTitleActor.SetStyleToCurrentText(DemoHelper::GetDefaultTextStyle());
356 bool DissolveEffectApp::OnSildeshowButtonClicked( Toolkit::Button button )
358 mSlideshow = !mSlideshow;
361 mPlayStopButton.SetBackgroundImage( mIconStop );
362 mPanGestureDetector.Detach( mParent );
368 mPlayStopButton.SetBackgroundImage( mIconPlay );
370 mPanGestureDetector.Attach( mParent );
375 void DissolveEffectApp::OnTransitionCompleted( Animation& source )
377 mCurrentImage.RemoveShaderEffect();
378 mNextImage.RemoveShaderEffect();
379 mParent.Remove( mCurrentImage );
380 mPanGestureDetector.Detach( mCurrentImage );
381 mCurrentImage = mNextImage;
382 mPanGestureDetector.Attach( mCurrentImage );
383 mIsTransiting = false;
392 bool DissolveEffectApp::OnTimerTick()
397 mIndex = (mIndex + 1)%NUM_IMAGES;
398 Image image = LoadStageFillingImage( IMAGES[ mIndex ] );
399 mNextImage = ImageActor::New( image );
400 mNextImage.SetPositionInheritanceMode(USE_PARENT_POSITION_PLUS_LOCAL_POSITION);
401 mNextImage.SetResizePolicy( FILL_TO_PARENT, ALL_DIMENSIONS );
402 mNextImage.SetSizeScalePolicy( FIT_WITH_ASPECT_RATIO );
403 mNextImage.SetZ(INITIAL_DEPTH);
404 mParent.Add( mNextImage );
405 switch( mCentralLineIndex%4 )
409 StartTransition(Vector2(1.0f,0.5f), Vector2(-1.0f, 0.0f));
414 StartTransition(Vector2(0.5f,0.0f), Vector2(0.0f, 1.0f));
419 StartTransition(Vector2(0.0f,0.5f), Vector2(1.0f, 0.0f));
424 StartTransition(Vector2(0.5f,1.0f), Vector2(0.0f, -1.0f));
431 return false; //return false to stop the timer
434 // Entry point for Linux & Tizen applications
435 int main( int argc, char **argv )
437 Application application = Application::New( &argc, &argv );
438 DissolveEffectApp test( application );
439 application.MainLoop();